chore: update .gitignore

Fix CSS appearance warning and format JS
Refactor admin frontend into modular SPA
2026-02-26 01:29:13 +03:00 · 2026-02-26 00:39:48 +03:00 · 2026-02-26 00:27:10 +03:00 · 2026-02-25 23:27:17 +03:00 · 2026-02-25 23:13:49 +03:00
28 changed files with 2360 additions and 2439 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -3,14 +3,7 @@ db/data/

 # Игнорируем секреты
 .env
-!GEMINI.md
-!AGENTS.md

-# Игнорируем системные папки IDE (если редактируете с ПК)
-.idea/
-.vscode/
-*.DS_Store
-.agent/
 # Игнорируем временные файлы сборки (на будущее)
 backend/target/
 backend/build/
--- a/backend/src/main/java/com/magistr/app/controller/TestController.java
+++ b/backend/src/main/java/com/magistr/app/controller/TestController.java
@@ -28,7 +28,7 @@ public class TestController {
        if (request.getGroupId() == null || request.getGroupId() == 0) {
            return ResponseEntity.badRequest().body(Map.of("message", "ID группы обязателен"));
        }
-        if (request.getDisciplineId() == null || request.getDisciplineId() == 0) {
+        if (request.getLessonTypeId() == null || request.getLessonTypeId() == 0) {
            return ResponseEntity.badRequest().body(Map.of("message", "ID предмета обязателен"));
        }
        if (request.getDay() == null || request.getDay().isBlank()) {
@@ -43,7 +43,7 @@ public class TestController {

        Lesson lesson = new Lesson();
        lesson.setTeacherId(request.getTeacherId());
-        lesson.setDisciplineId(request.getDisciplineId());
+        lesson.setLessonTypeId(request.getLessonTypeId());
        lesson.setGroupId(request.getGroupId());
        lesson.setDay(request.getDay());
        lesson.setWeek(request.getWeek());
@@ -56,7 +56,7 @@ public class TestController {
    @GetMapping
    public List<LessonResponse> getAllLessons() {
        return lessonRepository.findAll().stream()
-                .map(l -> new LessonResponse(l.getId(), l.getTeacherId(), l.getDisciplineId(), l.getDay(), l.getWeek(), l.getTime()))
+                .map(l -> new LessonResponse(l.getId(), l.getTeacherId(), l.getLessonTypeId(), l.getDay(), l.getWeek(), l.getTime()))
                .toList();
    }

--- a/backend/src/main/java/com/magistr/app/dto/CreateLessonRequest.java
+++ b/backend/src/main/java/com/magistr/app/dto/CreateLessonRequest.java
@@ -4,7 +4,7 @@ public class CreateLessonRequest {

    private Long teacherId;
    private Long groupId;
-    private Long disciplineId;
+    private Long lessonTypeId;
    private String day;
    private String week;
    private String time;
@@ -28,12 +28,12 @@ public class CreateLessonRequest {
        this.groupId = groupId;
    }

-    public Long getDisciplineId() {
-        return disciplineId;
+    public Long getLessonTypeId() {
+        return lessonTypeId;
    }

-    public void setDisciplineId(Long disciplineId) {
-        this.disciplineId= disciplineId;
+    public void setLessonTypeId(Long lessonTypeId) {
+        this.lessonTypeId= lessonTypeId;
    }

    public String getDay() {
--- a/backend/src/main/java/com/magistr/app/dto/LessonResponse.java
+++ b/backend/src/main/java/com/magistr/app/dto/LessonResponse.java
@@ -5,7 +5,7 @@ public class LessonResponse {
    private Long id;
    private Long teacherId;
    private Long groupId;
-    private Long disciplineId;
+    private Long lessonTypeId;
    private String day;
    private String week;
    private String time;
@@ -13,17 +13,17 @@ public class LessonResponse {
    public LessonResponse() {
    }

-    public LessonResponse(Long disciplineId, String day, String week, String time) {
-        this.disciplineId = disciplineId;
+    public LessonResponse(Long lessonTypeId, String day, String week, String time) {
+        this.lessonTypeId = lessonTypeId;
        this.day = day;
        this.week = week;
        this.time = time;
    }

-    public LessonResponse(Long id, Long teacherId, Long disciplineId, String day, String week, String time) {
+    public LessonResponse(Long id, Long teacherId, Long lessonTypeId, String day, String week, String time) {
        this.id = id;
        this.teacherId = teacherId;
-        this.disciplineId = disciplineId;
+        this.lessonTypeId = lessonTypeId;
        this.day = day;
        this.week = week;
        this.time = time;
@@ -53,12 +53,12 @@ public class LessonResponse {
        this.groupId = groupId;
    }

-    public Long getDisciplineId() {
-        return disciplineId;
+    public Long getLessonTypeId() {
+        return lessonTypeId;
    }

-    public void setDisciplineId(Long disciplineId) {
-        this.disciplineId = disciplineId;
+    public void setLessonTypeId(Long lessonTypeId) {
+        this.lessonTypeId = lessonTypeId;
    }

    public String getDay() {
--- a/backend/src/main/java/com/magistr/app/model/Lesson.java
+++ b/backend/src/main/java/com/magistr/app/model/Lesson.java
@@ -16,8 +16,8 @@ public class Lesson {
    @Column(name = "group_id", nullable = false)
    private Long groupId;

-    @Column(name = "discipline_id", nullable = false)
-    private Long disciplineId;
+    @Column(name = "lesson_type_id", nullable = false)
+    private Long lessonTypeId;

    @Column(name = "day", nullable = false, length = 255)
    private String day;
@@ -55,12 +55,12 @@ public class Lesson {
        this.groupId = groupId;
    }

-    public Long getDisciplineId() {
-        return disciplineId;
+    public Long getLessonTypeId() {
+        return lessonTypeId;
    }

-    public void setDisciplineId(Long disciplineId) {
-        this.disciplineId = disciplineId;
+    public void setLessonTypeId(Long lessonTypeId) {
+        this.lessonTypeId = lessonTypeId;
    }

    public String getDay() {
--- a/backend/src/main/java/com/magistr/app/repository/LessonRepository.java
+++ b/backend/src/main/java/com/magistr/app/repository/LessonRepository.java
@@ -7,5 +7,5 @@ import java.util.Optional;

 public interface LessonRepository extends JpaRepository<Lesson, Long> {

-    Optional<Lesson> findByDisciplineId(Long disciplineId);
+    Optional<Lesson> findByLessonTypeId(Long lessonTypeId);
 }
--- a/db/init/init.sql
+++ b/db/init/init.sql
@@ -1,10 +1,18 @@
+-- ==========================================
+-- Инициализация расширений
+-- ==========================================
 CREATE EXTENSION IF NOT EXISTS pgcrypto;

+-- ==========================================
+-- Пользователи и роли
+-- ==========================================
 CREATE TABLE IF NOT EXISTS users (
    id BIGSERIAL PRIMARY KEY,
    username VARCHAR(50) UNIQUE NOT NULL,
    password VARCHAR(255) NOT NULL,
-    role VARCHAR(20) NOT NULL DEFAULT 'STUDENT'
+    role VARCHAR(20) NOT NULL DEFAULT 'STUDENT',
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
 );

 -- Админ по умолчанию: admin / admin (bcrypt через pgcrypto)
@@ -12,19 +20,49 @@ INSERT INTO users (username, password, role)
 VALUES ('admin', crypt('admin', gen_salt('bf', 10)), 'ADMIN')
 ON CONFLICT (username) DO NOTHING;

+-- ==========================================
+-- Образовательные формы
+-- ==========================================
 CREATE TABLE IF NOT EXISTS education_forms (
    id BIGSERIAL PRIMARY KEY,
-    name VARCHAR(100) UNIQUE NOT NULL
+    name VARCHAR(100) UNIQUE NOT NULL,
+    description TEXT,
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
 );

-INSERT INTO education_forms (name) VALUES ('Бакалавриат'), ('Магистратура'), ('Специалитет')
+INSERT INTO education_forms (name) VALUES 
+    ('Бакалавриат'), 
+    ('Магистратура'), 
+    ('Специалитет')
 ON CONFLICT (name) DO NOTHING;

+-- ==========================================
+-- Учебные группы
+-- ==========================================
 CREATE TABLE IF NOT EXISTS student_groups (
    id BIGSERIAL PRIMARY KEY,
    name VARCHAR(100) UNIQUE NOT NULL,
-    education_form_id BIGINT NOT NULL REFERENCES education_forms(id)
+    education_form_id BIGINT NOT NULL REFERENCES education_forms(id),
+    course INT CHECK (course BETWEEN 1 AND 6),
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
 );
+
+-- Тестовая базовая группа для работы
+INSERT INTO student_groups (name, education_form_id, course) 
+VALUES ('ИВТ-21-1', 1, 3) 
+ON CONFLICT (name) DO NOTHING;
+
+-- ==========================================
+-- Подгруппы (например: "ИВТ-21-1 Подгруппа 1")
+-- ==========================================
+CREATE TABLE IF NOT EXISTS subgroups (
+    id BIGSERIAL PRIMARY KEY,
+    group_id BIGINT NOT NULL REFERENCES student_groups(id) ON DELETE CASCADE,
+    name VARCHAR(100) NOT NULL,
+    student_capacity INT,
+    UNIQUE(group_id, name)
+);
+
 -- ==========================================
 -- Справочники
 -- ==========================================
@@ -32,7 +70,10 @@ CREATE TABLE IF NOT EXISTS student_groups (
 -- Дисциплины
 CREATE TABLE IF NOT EXISTS subjects (
    id BIGSERIAL PRIMARY KEY,
-    name VARCHAR(200) UNIQUE NOT NULL
+    name VARCHAR(200) UNIQUE NOT NULL,
+    code VARCHAR(20),
+    description TEXT,
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
 );

 INSERT INTO subjects (name) VALUES 
@@ -46,96 +87,129 @@ ON CONFLICT (name) DO NOTHING;
 -- Типы занятий
 CREATE TABLE IF NOT EXISTS lesson_types (
    id BIGSERIAL PRIMARY KEY,
-    name VARCHAR(50) UNIQUE NOT NULL
+    name VARCHAR(50) UNIQUE NOT NULL,
+    color_code VARCHAR(7) DEFAULT '#3788d8', -- для цветовой индикации в календаре
+    duration_minutes INT DEFAULT 90
 );

-INSERT INTO lesson_types (name) VALUES 
-('Лекция'), 
-('Практика'), 
-('Лабораторная работа')
+INSERT INTO lesson_types (name, color_code) VALUES 
+    ('Лекция', '#FF6B6B'),
+    ('Практика', '#4ECDC4'),
+    ('Лабораторная работа', '#45B7D1')
 ON CONFLICT (name) DO NOTHING;

 -- Оборудование
 CREATE TABLE IF NOT EXISTS equipments (
    id BIGSERIAL PRIMARY KEY,
-    name VARCHAR(50) UNIQUE NOT NULL
+    name VARCHAR(50) UNIQUE NOT NULL,
+    description TEXT,
+    inventory_number VARCHAR(50)
 );

 INSERT INTO equipments (name) VALUES 
    ('Проектор'), 
    ('ПК'), 
    ('Лаборатория'),
-('Интерактивная доска')
+    ('Интерактивная доска'),
+    ('Документ-камера'),
+    ('Аудиосистема')
 ON CONFLICT (name) DO NOTHING;

 -- Аудитории
 CREATE TABLE IF NOT EXISTS classrooms (
    id BIGSERIAL PRIMARY KEY,
    name VARCHAR(50) UNIQUE NOT NULL,
-    capacity INT NOT NULL,
-    is_available BOOLEAN DEFAULT TRUE
+    capacity INT NOT NULL CHECK (capacity > 0),
+    building VARCHAR(50),
+    floor INT,
+    is_available BOOLEAN DEFAULT TRUE,
+    description TEXT,
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
 );

-INSERT INTO classrooms (name, capacity) VALUES 
-('101 Ленинская', 120),
-('202 IT Lab', 20),
-('303 Обычная', 30)
+INSERT INTO classrooms (name, capacity, building, floor) VALUES 
+    ('101 Ленинская', 120, 'Главный корпус', 1),
+    ('202 IT Lab', 20, 'Корпус IT', 2),
+    ('303 Обычная', 30, 'Главный корпус', 3)
 ON CONFLICT (name) DO NOTHING;

 -- Привязка оборудования к аудиториям (Many-to-Many)
 CREATE TABLE IF NOT EXISTS classroom_equipments (
    classroom_id BIGINT NOT NULL REFERENCES classrooms(id) ON DELETE CASCADE,
    equipment_id BIGINT NOT NULL REFERENCES equipments(id) ON DELETE CASCADE,
+    quantity INT DEFAULT 1 CHECK (quantity > 0),
+    notes TEXT,
    PRIMARY KEY (classroom_id, equipment_id)
 );

-- Заполнение привязок оборудования (на основе ID базовых данных)
-- '101 Ленинская' -> Проектор (1), Интерактивная доска (4)
-INSERT INTO classroom_equipments (classroom_id, equipment_id) VALUES 
-(1, 1), (1, 4),
-- '202 IT Lab' -> ПК (2), Проектор (1), Лаборатория (3)
-(2, 2), (2, 1), (2, 3)
-- '303 Обычная' -> ничего
-ON CONFLICT DO NOTHING;
+-- Заполнение привязок оборудования с использованием подзапросов
+INSERT INTO classroom_equipments (classroom_id, equipment_id, quantity)
+SELECT c.id, e.id, 
+    CASE 
+        WHEN e.name = 'ПК' AND c.name = '202 IT Lab' THEN 15
+        WHEN e.name = 'ПК' THEN 1
+        ELSE 1
+    END
+FROM classrooms c, equipments e 
+WHERE 
+    (c.name = '101 Ленинская' AND e.name IN ('Проектор', 'Интерактивная доска', 'Аудиосистема'))
+    OR (c.name = '202 IT Lab' AND e.name IN ('ПК', 'Проектор', 'Лаборатория', 'Интерактивная доска'))
+    OR (c.name = '303 Обычная' AND e.name IN ('Проектор'))
+ON CONFLICT (classroom_id, equipment_id) DO NOTHING;

 -- ==========================================
-- Связи для преподавателей и студентов
+-- Связи для преподавателей
 -- ==========================================

-- Подгруппы (например: "ИВТ-21-1 Подгруппа 1")
-CREATE TABLE IF NOT EXISTS subgroups (
-    id BIGSERIAL PRIMARY KEY,
-    group_id BIGINT NOT NULL REFERENCES student_groups(id) ON DELETE CASCADE,
-    name VARCHAR(100) NOT NULL,
-    UNIQUE(group_id, name)
-);
-
-- Тестовая базовая группа для работы
-INSERT INTO student_groups (name, education_form_id) 
-VALUES ('ИВТ-21-1', 1) 
-ON CONFLICT (name) DO NOTHING;
-
 -- Привязка преподавателей к дисциплинам
 CREATE TABLE IF NOT EXISTS teacher_subjects (
    user_id BIGINT NOT NULL REFERENCES users(id) ON DELETE CASCADE,
    subject_id BIGINT NOT NULL REFERENCES subjects(id) ON DELETE CASCADE,
+    qualification_level VARCHAR(50),
+    experience_years INT,
    PRIMARY KEY(user_id, subject_id)
 );

+-- Какие типы занятий может вести преподаватель по дисциплине
+CREATE TABLE IF NOT EXISTS teacher_lesson_types (
+    user_id BIGINT NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    subject_id BIGINT NOT NULL REFERENCES subjects(id) ON DELETE CASCADE,
+    lesson_type_id BIGINT NOT NULL REFERENCES lesson_types(id) ON DELETE CASCADE,
+    PRIMARY KEY (user_id, subject_id, lesson_type_id)
+);
+
 -- ==========================================
 -- Основная таблица Расписания (Lessons)
 -- ==========================================
 CREATE TABLE IF NOT EXISTS lessons (
    id BIGSERIAL PRIMARY KEY,
    teacher_id BIGINT NOT NULL REFERENCES users(id),
-    subject_id BIGINT NOT NULL REFERENCES subjects(id),
+    group_id BIGINT NOT NULL REFERENCES student_groups(id),
    lesson_type_id BIGINT NOT NULL REFERENCES lesson_types(id),
-    classroom_id BIGINT NOT NULL REFERENCES classrooms(id),
-    group_id BIGINT NOT NULL REFERENCES student_groups(id),  -- первичная группа
-    subgroup_id BIGINT REFERENCES subgroups(id),             -- необязательно (если делим группу)
-    
-    day_of_week INT NOT NULL CHECK (day_of_week BETWEEN 1 AND 7), -- 1=Понедельник, 7=Воскресенье
-    is_even_week BOOLEAN NOT NULL,                           -- Четная/нечетная неделя
-    start_time TIME NOT NULL,                                -- Напр. '08:00:00'
-    end_time TIME NOT NULL                                   -- Напр. '09:30:00'
+    day VARCHAR(255) NOT NULL,
+    week VARCHAR(255) NOT NULL,
+    time VARCHAR(255) NOT NULL
 );
+
+-- ==========================================
+-- Функция обновления timestamp
+-- ==========================================
+CREATE OR REPLACE FUNCTION update_updated_at_column()
+RETURNS TRIGGER AS $$
+BEGIN
+    NEW.updated_at = CURRENT_TIMESTAMP;
+    RETURN NEW;
+END;
+$$ LANGUAGE plpgsql;
+
+-- Триггеры для обновления updated_at
+CREATE TRIGGER update_users_updated_at
+    BEFORE UPDATE ON users
+    FOR EACH ROW
+    EXECUTE FUNCTION update_updated_at_column();
+
+-- ==========================================
+-- Комментарии к таблицам и полям (для документации)
+-- ==========================================
+COMMENT ON TABLE users IS 'Пользователи системы (студенты, преподаватели, администраторы)';
+COMMENT ON TABLE lessons IS 'Основное расписание занятий';
--- a/frontend/admin/admin.css
+++ b/frontend/admin/admin.css
--- a/frontend/admin/admin.js
+++ b/frontend/admin/admin.js
@@ -1,911 +0,0 @@
-(() => {
-    'use strict';
-
-    const token = localStorage.getItem('token');
-    const role = localStorage.getItem('role');
-
-    if (!token || role !== 'ADMIN') {
-        window.location.href = '/';
-        return;
-    }
-
-    // ---- DOM refs ----
-    const pageTitle = document.getElementById('page-title');
-    const btnLogout = document.getElementById('btn-logout');
-    const menuToggle = document.getElementById('menu-toggle');
-    const sidebar = document.querySelector('.sidebar');
-    const sidebarOverlay = document.getElementById('sidebar-overlay');
-
-    // Global Ripple Effect
-    document.addEventListener('click', function (e) {
-        const btn = e.target.closest('.btn-create, .btn-delete, .btn-logout');
-        if (!btn) return;
-
-        const rect = btn.getBoundingClientRect();
-        const x = e.clientX - rect.left;
-        const y = e.clientY - rect.top;
-
-        const ripple = document.createElement('span');
-        ripple.classList.add('ripple');
-        ripple.style.left = `${x}px`;
-        ripple.style.top = `${y}px`;
-
-        if (getComputedStyle(btn).position === 'static') {
-            btn.style.position = 'relative';
-        }
-        btn.style.overflow = 'hidden';
-
-        btn.appendChild(ripple);
-
-        setTimeout(() => ripple.remove(), 600);
-    });
-
-    // Users
-    const usersTbody = document.getElementById('users-tbody');
-    const createForm = document.getElementById('create-form');
-    const createAlert = document.getElementById('create-alert');
-
-    // Groups
-    const groupsTbody = document.getElementById('groups-tbody');
-    const createGroupForm = document.getElementById('create-group-form');
-    const createGroupAlert = document.getElementById('create-group-alert');
-    const newGroupEfSelect = document.getElementById('new-group-ef');
-    const filterEfSelect = document.getElementById('filter-ef');
-
-    // Education Forms
-    const efTbody = document.getElementById('ef-tbody');
-    const createEfForm = document.getElementById('create-ef-form');
-    const createEfAlert = document.getElementById('create-ef-alert');
-
-    // Classrooms
-    const classroomsTbody = document.getElementById('classrooms-tbody');
-    const createClassroomForm = document.getElementById('create-classroom-form');
-    const createClassroomAlert = document.getElementById('create-classroom-alert');
-    const modalEditClassroom = document.getElementById('modal-edit-classroom');
-    const modalEditClassroomClose = document.getElementById('modal-edit-classroom-close');
-    const editClassroomForm = document.getElementById('edit-classroom-form');
-    const editClassroomAlert = document.getElementById('edit-classroom-alert');
-    const editEquipmentCheckboxes = document.getElementById('edit-equipment-checkboxes');
-
-    // Equipments
-    const equipmentsTbody = document.getElementById('equipments-tbody');
-    const createEquipmentForm = document.getElementById('create-equipment-form');
-    const createEquipmentAlert = document.getElementById('create-equipment-alert');
-    const equipmentCheckboxes = document.getElementById('equipment-checkboxes');
-
-    // Subjects
-    const subjectsTbody = document.getElementById('subjects-tbody');
-    const createSubjectForm = document.getElementById('create-subject-form');
-    const createSubjectAlert = document.getElementById('create-subject-alert');
-    const assignTeacherForm = document.getElementById('assign-teacher-form');
-    const assignTeacherAlert = document.getElementById('assign-teacher-alert');
-    const assignTeacherSelect = document.getElementById('assign-teacher-select');
-    const assignSubjectSelect = document.getElementById('assign-subject-select');
-    const teacherSubjectsTbody = document.getElementById('teacher-subjects-tbody');
-
-    // --- Multi-select logic ---
-    function updateSelectText(containerId, textId) {
-        const container = document.getElementById(containerId);
-        const textEl = document.getElementById(textId);
-        if (!container || !textEl) return;
-        const checked = Array.from(container.querySelectorAll('input:checked'));
-        if (checked.length === 0) {
-            textEl.textContent = 'Выберите оборудование...';
-        } else if (checked.length === 1) {
-            textEl.textContent = checked[0].parentElement.textContent.trim();
-        } else {
-            textEl.textContent = `Выбрано: ${checked.length}`;
-        }
-    }
-
-    function initMultiSelect(boxId, menuId, textId, checkboxContainerId) {
-        const box = document.getElementById(boxId);
-        const menu = document.getElementById(menuId);
-        const container = document.getElementById(checkboxContainerId);
-        if (!box || !menu || !container) return;
-
-        box.addEventListener('click', (e) => {
-            e.stopPropagation();
-            const isOpen = menu.classList.contains('open');
-            document.querySelectorAll('.dropdown-menu').forEach(m => m.classList.remove('open'));
-            document.querySelectorAll('.select-box').forEach(b => b.classList.remove('active'));
-            if (!isOpen) {
-                menu.classList.add('open');
-                box.classList.add('active');
-            }
-        });
-
-        menu.addEventListener('click', (e) => {
-            e.stopPropagation();
-        });
-
-        container.addEventListener('change', () => {
-            updateSelectText(checkboxContainerId, textId);
-        });
-    }
-
-    initMultiSelect('equipment-select-box', 'equipment-dropdown-menu', 'equipment-select-text', 'equipment-checkboxes');
-    initMultiSelect('edit-equipment-select-box', 'edit-equipment-dropdown-menu', 'edit-equipment-select-text', 'edit-equipment-checkboxes');
-
-    document.addEventListener('click', () => {
-        document.querySelectorAll('.dropdown-menu').forEach(m => m.classList.remove('open'));
-        document.querySelectorAll('.select-box').forEach(b => b.classList.remove('active'));
-    });
-    // --------------------------
-
-    const navItems = document.querySelectorAll('.nav-item[data-tab]');
-    const tabContents = document.querySelectorAll('.tab-content');
-
-    // ---- State ----
-    let allGroups = [];
-    let allEducationForms = [];
-    let allEquipments = [];
-    let allSubjects = [];
-    let allTeachers = [];
-
-    // ---- Tab Switching ----
-    const TAB_TITLES = {
-        users: 'Управление пользователями',
-        groups: 'Управление группами',
-        'edu-forms': 'Формы обучения',
-        equipments: 'Оборудование',
-        classrooms: 'Аудитории',
-        subjects: 'Дисциплины и преподаватели'
-    };
-
-    navItems.forEach(item => {
-        item.addEventListener('click', (e) => {
-            e.preventDefault();
-            switchTab(item.dataset.tab);
-        });
-    });
-
-    function switchTab(tab) {
-        navItems.forEach(n => n.classList.remove('active'));
-        document.querySelector(`.nav-item[data-tab="${tab}"]`)?.classList.add('active');
-
-        tabContents.forEach(tc => tc.style.display = 'none');
-        const target = document.getElementById('tab-' + tab);
-        if (target) target.style.display = '';
-
-        pageTitle.textContent = TAB_TITLES[tab] || '';
-
-        if (tab === 'users') loadUsers();
-        if (tab === 'groups') { loadEducationForms().then(() => loadGroups()); }
-        if (tab === 'edu-forms') loadEducationForms();
-        if (tab === 'equipments') loadEquipments();
-        if (tab === 'classrooms') { loadEquipments().then(() => loadClassrooms()); }
-        if (tab === 'subjects') { Promise.all([loadSubjects(), loadTeachers()]).then(() => loadTeacherSubjects()); }
-
-        sidebar.classList.remove('open');
-        sidebarOverlay.classList.remove('open');
-    }
-
-    // ---- Mobile Menu ----
-    menuToggle.addEventListener('click', () => {
-        sidebar.classList.toggle('open');
-        sidebarOverlay.classList.toggle('open');
-    });
-    sidebarOverlay.addEventListener('click', () => {
-        sidebar.classList.remove('open');
-        sidebarOverlay.classList.remove('open');
-    });
-
-    // ---- Helpers ----
-    const ROLE_LABELS = { ADMIN: 'Администратор', TEACHER: 'Преподаватель', STUDENT: 'Студент' };
-    const ROLE_BADGE = { ADMIN: 'badge-admin', TEACHER: 'badge-teacher', STUDENT: 'badge-student' };
-
-    function escapeHtml(str) {
-        const div = document.createElement('div');
-        div.textContent = str;
-        return div.innerHTML;
-    }
-
-    function showAlert(el, msg, type) {
-        el.className = 'form-alert ' + type;
-        el.textContent = msg;
-    }
-
-    function hideAlert(el) {
-        el.className = 'form-alert';
-        el.textContent = '';
-    }
-
-    // ============================================================
-    //  USERS
-    // ============================================================
-
-    async function loadUsers() {
-        try {
-            const res = await fetch('/api/users', {
-                headers: { 'Authorization': 'Bearer ' + token },
-            });
-            const users = await res.json();
-            renderUsers(users);
-        } catch (e) {
-            usersTbody.innerHTML = '<tr><td colspan="4" class="loading-row">Ошибка загрузки</td></tr>';
-        }
-    }
-
-    function renderUsers(users) {
-        if (!users.length) {
-            usersTbody.innerHTML = '<tr><td colspan="4" class="loading-row">Нет пользователей</td></tr>';
-            return;
-        }
-        usersTbody.innerHTML = users.map(u => `
-      <tr>
-        <td>${u.id}</td>
-        <td>${escapeHtml(u.username)}</td>
-        <td><span class="badge ${ROLE_BADGE[u.role] || ''}">${ROLE_LABELS[u.role] || u.role}</span></td>
-        <td><button class="btn-delete" data-id="${u.id}">Удалить</button></td>
-        <td><button class="btn-delete" data-role="${u.role}">Добавить занятие</button></td>
-      </tr>`).join('');
-    }
-
-    createForm.addEventListener('submit', async (e) => {
-        e.preventDefault();
-        hideAlert(createAlert);
-        const username = document.getElementById('new-username').value.trim();
-        const password = document.getElementById('new-password').value;
-        const role = document.getElementById('new-role').value;
-        if (!username || !password) { showAlert(createAlert, 'Заполните все поля', 'error'); return; }
-
-        try {
-            const res = await fetch('/api/users', {
-                method: 'POST',
-                headers: { 'Content-Type': 'application/json', 'Authorization': 'Bearer ' + token },
-                body: JSON.stringify({ username, password, role }),
-            });
-            const data = await res.json();
-            if (res.ok) {
-                showAlert(createAlert, `Пользователь "${data.username}" создан`, 'success');
-                createForm.reset();
-                loadUsers();
-            } else {
-                showAlert(createAlert, data.message || 'Ошибка создания', 'error');
-            }
-        } catch (e) { showAlert(createAlert, 'Ошибка соединения', 'error'); }
-    });
-
-    usersTbody.addEventListener('click', async (e) => {
-        const btn = e.target.closest('.btn-delete');
-        if (!btn) return;
-        if (!confirm('Удалить пользователя?')) return;
-        try {
-            const res = await fetch('/api/users/' + btn.dataset.id, {
-                method: 'DELETE',
-                headers: { 'Authorization': 'Bearer ' + token },
-            });
-            if (res.ok) loadUsers();
-            else alert('Ошибка удаления');
-        } catch (e) { alert('Ошибка соединения'); }
-    });
-
-    // ============================================================
-    //  EDUCATION FORMS
-    // ============================================================
-
-    async function loadEducationForms() {
-        try {
-            const res = await fetch('/api/education-forms', {
-                headers: { 'Authorization': 'Bearer ' + token },
-            });
-            allEducationForms = await res.json();
-            renderEfTable(allEducationForms);
-            populateEfSelects(allEducationForms);
-        } catch (e) {
-            efTbody.innerHTML = '<tr><td colspan="3" class="loading-row">Ошибка загрузки</td></tr>';
-        }
-    }
-
-    function renderEfTable(forms) {
-        if (!forms.length) {
-            efTbody.innerHTML = '<tr><td colspan="3" class="loading-row">Нет форм обучения</td></tr>';
-            return;
-        }
-        efTbody.innerHTML = forms.map(ef => `
-      <tr>
-        <td>${ef.id}</td>
-        <td>${escapeHtml(ef.name)}</td>
-        <td><button class="btn-delete" data-id="${ef.id}">Удалить</button></td>
-      </tr>`).join('');
-    }
-
-    function populateEfSelects(forms) {
-        // Group creation select
-        const currentVal = newGroupEfSelect.value;
-        newGroupEfSelect.innerHTML = forms.map(ef =>
-            `<option value="${ef.id}">${escapeHtml(ef.name)}</option>`
-        ).join('');
-        if (currentVal && forms.find(f => f.id == currentVal)) {
-            newGroupEfSelect.value = currentVal;
-        }
-
-        // Filter select
-        const currentFilter = filterEfSelect.value;
-        filterEfSelect.innerHTML = '<option value="">Все формы</option>' +
-            forms.map(ef =>
-                `<option value="${ef.id}">${escapeHtml(ef.name)}</option>`
-            ).join('');
-        if (currentFilter) filterEfSelect.value = currentFilter;
-    }
-
-    createEfForm.addEventListener('submit', async (e) => {
-        e.preventDefault();
-        hideAlert(createEfAlert);
-        const name = document.getElementById('new-ef-name').value.trim();
-        if (!name) { showAlert(createEfAlert, 'Введите название', 'error'); return; }
-
-        try {
-            const res = await fetch('/api/education-forms', {
-                method: 'POST',
-                headers: { 'Content-Type': 'application/json', 'Authorization': 'Bearer ' + token },
-                body: JSON.stringify({ name }),
-            });
-            const data = await res.json();
-            if (res.ok) {
-                showAlert(createEfAlert, `Форма "${data.name}" создана`, 'success');
-                createEfForm.reset();
-                loadEducationForms();
-            } else {
-                showAlert(createEfAlert, data.message || 'Ошибка создания', 'error');
-            }
-        } catch (e) { showAlert(createEfAlert, 'Ошибка соединения', 'error'); }
-    });
-
-    efTbody.addEventListener('click', async (e) => {
-        const btn = e.target.closest('.btn-delete');
-        if (!btn) return;
-        if (!confirm('Удалить форму обучения?')) return;
-        try {
-            const res = await fetch('/api/education-forms/' + btn.dataset.id, {
-                method: 'DELETE',
-                headers: { 'Authorization': 'Bearer ' + token },
-            });
-            if (res.ok) {
-                loadEducationForms();
-            } else {
-                const data = await res.json();
-                alert(data.message || 'Ошибка удаления');
-            }
-        } catch (e) { alert('Ошибка соединения'); }
-    });
-
-    // ============================================================
-    //  GROUPS
-    // ============================================================
-
-    async function loadGroups() {
-        try {
-            const res = await fetch('/api/groups', {
-                headers: { 'Authorization': 'Bearer ' + token },
-            });
-            allGroups = await res.json();
-            applyGroupFilter();
-        } catch (e) {
-            groupsTbody.innerHTML = '<tr><td colspan="4" class="loading-row">Ошибка загрузки</td></tr>';
-        }
-    }
-
-    function applyGroupFilter() {
-        const filterId = filterEfSelect.value;
-        const filtered = filterId
-            ? allGroups.filter(g => g.educationFormId == filterId)
-            : allGroups;
-        renderGroups(filtered);
-    }
-
-    filterEfSelect.addEventListener('change', applyGroupFilter);
-
-    function renderGroups(groups) {
-        if (!groups.length) {
-            groupsTbody.innerHTML = '<tr><td colspan="4" class="loading-row">Нет групп</td></tr>';
-            return;
-        }
-        groupsTbody.innerHTML = groups.map(g => `
-      <tr>
-        <td>${g.id}</td>
-        <td>${escapeHtml(g.name)}</td>
-        <td><span class="badge badge-ef">${escapeHtml(g.educationFormName)}</span></td>
-        <td><button class="btn-delete" data-id="${g.id}">Удалить</button></td>
-      </tr>`).join('');
-    }
-
-    createGroupForm.addEventListener('submit', async (e) => {
-        e.preventDefault();
-        hideAlert(createGroupAlert);
-        const name = document.getElementById('new-group-name').value.trim();
-        const educationFormId = newGroupEfSelect.value;
-        if (!name) { showAlert(createGroupAlert, 'Введите название группы', 'error'); return; }
-        if (!educationFormId) { showAlert(createGroupAlert, 'Выберите форму обучения', 'error'); return; }
-
-        try {
-            const res = await fetch('/api/groups', {
-                method: 'POST',
-                headers: { 'Content-Type': 'application/json', 'Authorization': 'Bearer ' + token },
-                body: JSON.stringify({ name, educationFormId: Number(educationFormId) }),
-            });
-            const data = await res.json();
-            if (res.ok) {
-                showAlert(createGroupAlert, `Группа "${data.name}" создана`, 'success');
-                createGroupForm.reset();
-                loadGroups();
-            } else {
-                showAlert(createGroupAlert, data.message || 'Ошибка создания', 'error');
-            }
-        } catch (e) { showAlert(createGroupAlert, 'Ошибка соединения', 'error'); }
-    });
-
-    groupsTbody.addEventListener('click', async (e) => {
-        const btn = e.target.closest('.btn-delete');
-        if (!btn) return;
-        if (!confirm('Удалить группу?')) return;
-        try {
-            const res = await fetch('/api/groups/' + btn.dataset.id, {
-                method: 'DELETE',
-                headers: { 'Authorization': 'Bearer ' + token },
-            });
-            if (res.ok) loadGroups();
-            else alert('Ошибка удаления');
-        } catch (e) { alert('Ошибка соединения'); }
-    });
-
-    // ============================================================
-    //  EQUIPMENTS
-    // ============================================================
-
-    async function loadEquipments() {
-        try {
-            const res = await fetch('/api/equipments', {
-                headers: { 'Authorization': 'Bearer ' + token },
-            });
-            allEquipments = await res.json();
-            renderEquipments(allEquipments);
-            renderEquipmentCheckboxes(allEquipments);
-        } catch (e) {
-            if (equipmentsTbody) equipmentsTbody.innerHTML = '<tr><td colspan="3" class="loading-row">Ошибка загрузки</td></tr>';
-            if (equipmentCheckboxes) equipmentCheckboxes.innerHTML = '<p class="text-error">Ошибка загрузки</p>';
-        }
-    }
-
-    function renderEquipments(equipments) {
-        if (!equipments.length) {
-            equipmentsTbody.innerHTML = '<tr><td colspan="3" class="loading-row">Нет оборудования</td></tr>';
-            return;
-        }
-        equipmentsTbody.innerHTML = equipments.map(eq => `
-      <tr>
-        <td>${eq.id}</td>
-        <td>${escapeHtml(eq.name)}</td>
-        <td><button class="btn-delete" data-id="${eq.id}">Удалить</button></td>
-      </tr>`).join('');
-    }
-
-    function renderEquipmentCheckboxes(equipments) {
-        if (!equipments.length) {
-            equipmentCheckboxes.innerHTML = '<p class="text-muted"><small>Нет доступного оборудования</small></p>';
-            return;
-        }
-        equipmentCheckboxes.innerHTML = equipments.map(eq => `
-            <label class="checkbox-item">
-                <input type="checkbox" value="${eq.id}"> ${escapeHtml(eq.name)}
-            </label>
-        `).join('');
-        updateSelectText('equipment-checkboxes', 'equipment-select-text');
-    }
-
-    createEquipmentForm.addEventListener('submit', async (e) => {
-        e.preventDefault();
-        hideAlert(createEquipmentAlert);
-        const name = document.getElementById('new-equipment-name').value.trim();
-        if (!name) { showAlert(createEquipmentAlert, 'Введите название', 'error'); return; }
-
-        try {
-            const res = await fetch('/api/equipments', {
-                method: 'POST',
-                headers: { 'Content-Type': 'application/json', 'Authorization': 'Bearer ' + token },
-                body: JSON.stringify({ name }),
-            });
-            const data = await res.json();
-            if (res.ok) {
-                showAlert(createEquipmentAlert, `Оборудование "${data.name}" добавлено`, 'success');
-                createEquipmentForm.reset();
-                loadEquipments();
-            } else {
-                showAlert(createEquipmentAlert, data.message || 'Ошибка создания', 'error');
-            }
-        } catch (e) { showAlert(createEquipmentAlert, 'Ошибка соединения', 'error'); }
-    });
-
-    equipmentsTbody.addEventListener('click', async (e) => {
-        const btn = e.target.closest('.btn-delete');
-        if (!btn) return;
-        if (!confirm('Удалить оборудование?')) return;
-        try {
-            const res = await fetch('/api/equipments/' + btn.dataset.id, {
-                method: 'DELETE',
-                headers: { 'Authorization': 'Bearer ' + token },
-            });
-            if (res.ok) {
-                loadEquipments();
-            } else {
-                const data = await res.json();
-                alert(data.message || 'Ошибка удаления');
-            }
-        } catch (e) { alert('Ошибка соединения'); }
-    });
-
-    // ============================================================
-    //  CLASSROOMS
-    // ============================================================
-
-    async function loadClassrooms() {
-        try {
-            const res = await fetch('/api/classrooms', {
-                headers: { 'Authorization': 'Bearer ' + token },
-            });
-            const classrooms = await res.json();
-            renderClassrooms(classrooms);
-        } catch (e) {
-            classroomsTbody.innerHTML = '<tr><td colspan="6" class="loading-row">Ошибка загрузки</td></tr>';
-        }
-    }
-
-    function renderClassrooms(classrooms) {
-        if (!classrooms.length) {
-            classroomsTbody.innerHTML = '<tr><td colspan="6" class="loading-row">Нет аудиторий</td></tr>';
-            return;
-        }
-        classroomsTbody.innerHTML = classrooms.map(c => {
-            const equipHtml = c.equipments && c.equipments.length
-                ? c.equipments.map(eq => escapeHtml(eq.name)).join(', ')
-                : '—';
-
-            return `
-      <tr>
-        <td>${c.id}</td>
-        <td><strong>${escapeHtml(c.name)}</strong></td>
-        <td>${c.capacity} чел.</td>
-        <td><small>${equipHtml}</small></td>
-        <td>
-            <div class="status-cell">
-                <span class="badge ${c.isAvailable ? 'badge-available' : 'badge-unavailable'}">
-                    ${c.isAvailable ? 'Доступна' : 'Не доступна'}
-                </span>
-                <button class="btn-icon-toggle" data-id="${c.id}" data-current-status="${c.isAvailable}" title="Сменить статус">
-                    <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M21 12a9 9 0 01-9 9m9-9a9 9 0 00-9-9m9 9H3m9 9a9 9 0 01-9-9m9 9c1.657 0 3-4.03 3-9s-1.343-9-3-9m0 18c-1.657 0-3-4.03-3-9s1.343-9 3-9m-9 9a9 9 0 019-9"></path></svg>
-                </button>
-            </div>
-        </td>
-          <td style="text-align: right;">
-              <button class="btn-edit-classroom" data-id="${c.id}" style="padding: 0.35rem 0.7rem; background: rgba(99, 102, 241, 0.1); border: 1px solid rgba(99, 102, 241, 0.2); border-radius: var(--radius-sm); color: var(--accent-hover); cursor: pointer; margin-right: 0.5rem;">Изменить</button>
-              <button class="btn-delete" data-id="${c.id}">Удалить</button>
-          </td>
-        </tr>`;
-        }).join('');
-    }
-
-    createClassroomForm.addEventListener('submit', async (e) => {
-        e.preventDefault();
-        hideAlert(createClassroomAlert);
-        const name = document.getElementById('new-classroom-name').value.trim();
-        const capacity = parseInt(document.getElementById('new-classroom-capacity').value, 10);
-
-        const checkedBoxes = Array.from(equipmentCheckboxes.querySelectorAll('input:checked'));
-        const equipmentIds = checkedBoxes.map(chk => parseInt(chk.value, 10));
-
-        if (!name || isNaN(capacity)) { showAlert(createClassroomAlert, 'Заполните обязательные поля', 'error'); return; }
-
-        try {
-            const res = await fetch('/api/classrooms', {
-                method: 'POST',
-                headers: { 'Content-Type': 'application/json', 'Authorization': 'Bearer ' + token },
-                body: JSON.stringify({ name, capacity, equipmentIds, isAvailable: true }),
-            });
-            const data = await res.json();
-            if (res.ok) {
-                showAlert(createClassroomAlert, `Аудитория "${data.name}" добавлена`, 'success');
-                createClassroomForm.reset();
-                updateSelectText('equipment-checkboxes', 'equipment-select-text');
-                loadClassrooms();
-            } else {
-                showAlert(createClassroomAlert, data.message || 'Ошибка создания', 'error');
-            }
-        } catch (e) { showAlert(createClassroomAlert, 'Ошибка соединения', 'error'); }
-    });
-
-    classroomsTbody.addEventListener('click', async (e) => {
-        const btnDelete = e.target.closest('.btn-delete');
-        const btnToggleStatus = e.target.closest('.btn-icon-toggle');
-        const btnEdit = e.target.closest('.btn-edit-classroom');
-
-        if (btnDelete) {
-            if (!confirm('Удалить аудиторию?')) return;
-            try {
-                const res = await fetch('/api/classrooms/' + btnDelete.dataset.id, {
-                    method: 'DELETE',
-                    headers: { 'Authorization': 'Bearer ' + token },
-                });
-                if (res.ok) loadClassrooms();
-                else alert('Ошибка удаления');
-            } catch (err) { alert('Ошибка соединения'); }
-        }
-
-        if (btnToggleStatus) {
-            const id = btnToggleStatus.dataset.id;
-            const currentStatus = btnToggleStatus.dataset.currentStatus === 'true';
-            try {
-                const res = await fetch('/api/classrooms/' + id, {
-                    method: 'PUT',
-                    headers: { 'Content-Type': 'application/json', 'Authorization': 'Bearer ' + token },
-                    body: JSON.stringify({ isAvailable: !currentStatus }),
-                });
-                if (res.ok) loadClassrooms();
-                else alert('Ошибка изменения статуса');
-            } catch (err) { alert('Ошибка соединения'); }
-        }
-
-        if (btnEdit) {
-            const id = btnEdit.dataset.id;
-            openEditClassroomModal(id);
-        }
-    });
-
-    let editingClassroomData = null;
-
-    async function openEditClassroomModal(id) {
-        try {
-            const res = await fetch('/api/classrooms', { headers: { 'Authorization': 'Bearer ' + token } });
-            const classrooms = await res.json();
-            editingClassroomData = classrooms.find(c => c.id == id);
-
-            if (!editingClassroomData) return;
-
-            document.getElementById('edit-classroom-id').value = editingClassroomData.id;
-            document.getElementById('edit-classroom-name').value = editingClassroomData.name;
-            document.getElementById('edit-classroom-capacity').value = editingClassroomData.capacity;
-
-            if (allEquipments.length) {
-                editEquipmentCheckboxes.innerHTML = allEquipments.map(eq => {
-                    const isChecked = editingClassroomData.equipments.some(e => e.id === eq.id) ? 'checked' : '';
-                    return `
-                        <label class="checkbox-item">
-                            <input type="checkbox" value="${eq.id}" ${isChecked}> ${escapeHtml(eq.name)}
-                        </label>
-                    `;
-                }).join('');
-            } else {
-                editEquipmentCheckboxes.innerHTML = '<p class="text-muted"><small>Нет доступного оборудования</small></p>';
-            }
-            updateSelectText('edit-equipment-checkboxes', 'edit-equipment-select-text');
-
-            hideAlert(editClassroomAlert);
-            modalEditClassroom.classList.add('open');
-        } catch (e) {
-            alert('Ошибка загрузки данных аудитории');
-        }
-    }
-
-    modalEditClassroomClose.addEventListener('click', () => {
-        modalEditClassroom.classList.remove('open');
-    });
-
-    modalEditClassroom.addEventListener('click', (e) => {
-        if (e.target === modalEditClassroom) {
-            modalEditClassroom.classList.remove('open');
-        }
-    });
-
-    editClassroomForm.addEventListener('submit', async (e) => {
-        e.preventDefault();
-        hideAlert(editClassroomAlert);
-        const id = document.getElementById('edit-classroom-id').value;
-        const name = document.getElementById('edit-classroom-name').value.trim();
-        const capacity = parseInt(document.getElementById('edit-classroom-capacity').value, 10);
-
-        const checkedBoxes = Array.from(editEquipmentCheckboxes.querySelectorAll('input:checked'));
-        const equipmentIds = checkedBoxes.map(chk => parseInt(chk.value, 10));
-
-        if (!name || isNaN(capacity)) { showAlert(editClassroomAlert, 'Заполните обязательные поля', 'error'); return; }
-
-        try {
-            const res = await fetch('/api/classrooms/' + id, {
-                method: 'PUT',
-                headers: { 'Content-Type': 'application/json', 'Authorization': 'Bearer ' + token },
-                body: JSON.stringify({ name, capacity, equipmentIds, isAvailable: editingClassroomData.isAvailable }),
-            });
-            const data = await res.json();
-            if (res.ok) {
-                modalEditClassroom.classList.remove('open');
-                showAlert(createClassroomAlert, `Аудитория "${data.name}" обновлена`, 'success');
-                loadClassrooms();
-            } else {
-                showAlert(editClassroomAlert, data.message || 'Ошибка обновления', 'error');
-            }
-        } catch (e) { showAlert(editClassroomAlert, 'Ошибка соединения', 'error'); }
-    });
-
-    // ============================================================
-    //  SUBJECTS
-    // ============================================================
-
-    async function loadSubjects() {
-        try {
-            const res = await fetch('/api/subjects', {
-                headers: { 'Authorization': 'Bearer ' + token },
-            });
-            allSubjects = await res.json();
-            renderSubjects(allSubjects);
-            populateSubjectSelect(allSubjects);
-        } catch (e) {
-            if (subjectsTbody) subjectsTbody.innerHTML = '<tr><td colspan="3" class="loading-row">Ошибка загрузки</td></tr>';
-        }
-    }
-
-    function renderSubjects(subjects) {
-        if (!subjects.length) {
-            subjectsTbody.innerHTML = '<tr><td colspan="3" class="loading-row">Нет дисциплин</td></tr>';
-            return;
-        }
-        subjectsTbody.innerHTML = subjects.map(s => `
-      <tr>
-        <td>${s.id}</td>
-        <td>${escapeHtml(s.name)}</td>
-        <td><button class="btn-delete" data-id="${s.id}">Удалить</button></td>
-      </tr>`).join('');
-    }
-
-    function populateSubjectSelect(subjects) {
-        if (!assignSubjectSelect) return;
-        const currentVal = assignSubjectSelect.value;
-        assignSubjectSelect.innerHTML = '<option value="">Выберите дисциплину</option>' +
-            subjects.map(s => `<option value="${s.id}">${escapeHtml(s.name)}</option>`).join('');
-        if (currentVal && subjects.find(s => s.id == currentVal)) {
-            assignSubjectSelect.value = currentVal;
-        }
-    }
-
-    async function loadTeachers() {
-        try {
-            const res = await fetch('/api/users/teachers', {
-                headers: { 'Authorization': 'Bearer ' + token },
-            });
-            allTeachers = await res.json();
-            populateTeacherSelect(allTeachers);
-        } catch (e) {
-            if (assignTeacherSelect) assignTeacherSelect.innerHTML = '<option value="">Ошибка загрузки</option>';
-        }
-    }
-
-    function populateTeacherSelect(teachers) {
-        if (!assignTeacherSelect) return;
-        const currentVal = assignTeacherSelect.value;
-        if (!teachers.length) {
-            assignTeacherSelect.innerHTML = '<option value="">Нет преподавателей</option>';
-            return;
-        }
-        assignTeacherSelect.innerHTML = '<option value="">Выберите преподавателя</option>' +
-            teachers.map(t => `<option value="${t.id}">${escapeHtml(t.username)}</option>`).join('');
-        if (currentVal && teachers.find(t => t.id == currentVal)) {
-            assignTeacherSelect.value = currentVal;
-        }
-    }
-
-    async function loadTeacherSubjects() {
-        try {
-            const res = await fetch('/api/teacher-subjects', {
-                headers: { 'Authorization': 'Bearer ' + token },
-            });
-            const tsData = await res.json();
-            renderTeacherSubjects(tsData);
-        } catch (e) {
-            if (teacherSubjectsTbody) teacherSubjectsTbody.innerHTML = '<tr><td colspan="3" class="loading-row">Ошибка загрузки</td></tr>';
-        }
-    }
-
-    function renderTeacherSubjects(tsArray) {
-        if (!tsArray.length) {
-            teacherSubjectsTbody.innerHTML = '<tr><td colspan="3" class="loading-row">Нет привязок</td></tr>';
-            return;
-        }
-        teacherSubjectsTbody.innerHTML = tsArray.map(ts => `
-      <tr>
-        <td>${escapeHtml(ts.username)}</td>
-        <td>${escapeHtml(ts.subjectName)}</td>
-        <td><button class="btn-delete" data-user-id="${ts.userId}" data-subject-id="${ts.subjectId}">Удалить</button></td>
-      </tr>`).join('');
-    }
-
-    createSubjectForm.addEventListener('submit', async (e) => {
-        e.preventDefault();
-        hideAlert(createSubjectAlert);
-        const name = document.getElementById('new-subject-name').value.trim();
-        if (!name) { showAlert(createSubjectAlert, 'Введите название', 'error'); return; }
-
-        try {
-            const res = await fetch('/api/subjects', {
-                method: 'POST',
-                headers: { 'Content-Type': 'application/json', 'Authorization': 'Bearer ' + token },
-                body: JSON.stringify({ name }),
-            });
-            const data = await res.json();
-            if (res.ok) {
-                showAlert(createSubjectAlert, `Дисциплина "${data.name}" добавлена`, 'success');
-                createSubjectForm.reset();
-                loadSubjects();
-            } else {
-                showAlert(createSubjectAlert, data.message || 'Ошибка создания', 'error');
-            }
-        } catch (e) { showAlert(createSubjectAlert, 'Ошибка соединения', 'error'); }
-    });
-
-    subjectsTbody.addEventListener('click', async (e) => {
-        const btn = e.target.closest('.btn-delete');
-        if (!btn) return;
-        if (!confirm('Удалить дисциплину?')) return;
-        try {
-            const res = await fetch('/api/subjects/' + btn.dataset.id, {
-                method: 'DELETE',
-                headers: { 'Authorization': 'Bearer ' + token },
-            });
-            if (res.ok) {
-                loadSubjects();
-                loadTeacherSubjects();
-            } else {
-                const data = await res.json();
-                alert(data.message || 'Ошибка удаления');
-            }
-        } catch (e) { alert('Ошибка соединения'); }
-    });
-
-    assignTeacherForm.addEventListener('submit', async (e) => {
-        e.preventDefault();
-        hideAlert(assignTeacherAlert);
-        const userId = assignTeacherSelect.value;
-        const subjectId = assignSubjectSelect.value;
-        if (!userId) { showAlert(assignTeacherAlert, 'Выберите преподавателя', 'error'); return; }
-        if (!subjectId) { showAlert(assignTeacherAlert, 'Выберите дисциплину', 'error'); return; }
-
-        try {
-            const res = await fetch('/api/teacher-subjects', {
-                method: 'POST',
-                headers: { 'Content-Type': 'application/json', 'Authorization': 'Bearer ' + token },
-                body: JSON.stringify({ userId: Number(userId), subjectId: Number(subjectId) }),
-            });
-            const data = await res.json();
-            if (res.ok) {
-                showAlert(assignTeacherAlert, 'Привязка создана', 'success');
-                loadTeacherSubjects();
-            } else {
-                showAlert(assignTeacherAlert, data.message || 'Ошибка привязки', 'error');
-            }
-        } catch (e) { showAlert(assignTeacherAlert, 'Ошибка соединения', 'error'); }
-    });
-
-    teacherSubjectsTbody.addEventListener('click', async (e) => {
-        const btn = e.target.closest('.btn-delete');
-        if (!btn) return;
-        if (!confirm('Удалить привязку?')) return;
-        try {
-            const res = await fetch('/api/teacher-subjects', {
-                method: 'DELETE',
-                headers: { 'Content-Type': 'application/json', 'Authorization': 'Bearer ' + token },
-                body: JSON.stringify({ userId: Number(btn.dataset.userId), subjectId: Number(btn.dataset.subjectId) }),
-            });
-            if (res.ok) loadTeacherSubjects();
-            else alert('Ошибка удаления');
-        } catch (e) { alert('Ошибка соединения'); }
-    });
-
-    // ============================================================
-    //  LOGOUT & INIT
-    // ============================================================
-
-    btnLogout.addEventListener('click', () => {
-        localStorage.removeItem('token');
-        localStorage.removeItem('role');
-        window.location.href = '/';
-    });
-
-    loadUsers();
-})();
--- a/frontend/admin/css/components.css
+++ b/frontend/admin/css/components.css
@@ -0,0 +1,587 @@
+/* ===== Cards ===== */
+.card {
+    background: var(--bg-card);
+    backdrop-filter: blur(20px);
+    -webkit-backdrop-filter: blur(20px);
+    border: 1px solid var(--bg-card-border);
+    border-radius: var(--radius-md);
+    padding: 1.75rem;
+    position: relative;
+    overflow: visible;
+    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
+    animation: slideUpCard 0.5s cubic-bezier(0.25, 0.8, 0.25, 1) both;
+    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
+}
+
+.card::before {
+    content: '';
+    position: absolute;
+    top: 0;
+    left: 0;
+    right: 0;
+    height: 1px;
+    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
+    opacity: 0;
+    transition: opacity var(--transition);
+}
+
+.card:hover {
+    transform: translateY(-4px);
+    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
+    border-color: rgba(255, 255, 255, 0.12);
+}
+
+.card:hover::before {
+    opacity: 1;
+}
+
+.create-card {
+    z-index: 10;
+}
+
+.card h2 {
+    font-size: 0.8rem;
+    font-weight: 600;
+    margin-bottom: 1rem;
+    color: var(--text-secondary);
+    text-transform: uppercase;
+    letter-spacing: 0.04em;
+}
+
+/* ===== Form Structure ===== */
+.form-row {
+    display: flex;
+    gap: 1rem;
+    align-items: flex-end;
+    flex-wrap: wrap;
+}
+
+.form-group {
+    flex: 1;
+    min-width: 160px;
+}
+
+.form-group label {
+    display: block;
+    font-size: 0.78rem;
+    font-weight: 500;
+    color: var(--text-secondary);
+    margin-bottom: 0.4rem;
+    text-transform: uppercase;
+    letter-spacing: 0.04em;
+}
+
+.form-group input,
+.form-group select {
+    width: 100%;
+    padding: 0.75rem 1rem;
+    background: var(--bg-input);
+    border: 1px solid var(--bg-card-border);
+    border-radius: var(--radius-sm);
+    color: var(--text-primary);
+    font-family: inherit;
+    font-size: 0.95rem;
+    outline: none;
+    transition: all var(--transition);
+}
+
+.form-group input::placeholder {
+    color: var(--text-placeholder);
+    transition: opacity var(--transition);
+}
+
+.form-group input:focus,
+.form-group select:focus {
+    background: var(--bg-input-focus);
+    border-color: var(--accent);
+    box-shadow: 0 0 0 4px var(--accent-glow);
+    transform: translateY(-1px);
+}
+
+.form-group input:focus::placeholder {
+    opacity: 0.5;
+}
+
+/* Hide Number Arrows */
+input[type="number"]::-webkit-outer-spin-button,
+input[type="number"]::-webkit-inner-spin-button {
+    -webkit-appearance: none;
+    margin: 0;
+}
+
+input[type="number"] {
+    -moz-appearance: textfield;
+    appearance: textfield;
+}
+
+/* Select Base Style */
+.form-group select,
+.filter-row select {
+    cursor: pointer;
+    appearance: none;
+    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%239ca3af' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
+    background-repeat: no-repeat;
+    background-position: right 0.75rem center;
+    padding-right: 2.25rem;
+}
+
+.form-group select option,
+.filter-row select option {
+    background: #1a1a2e;
+    color: var(--text-primary);
+}
+
+/* Light theme selects */
+[data-theme="light"] .form-group input,
+[data-theme="light"] .form-group select,
+[data-theme="light"] .filter-row select {
+    border-color: rgba(0, 0, 0, 0.15);
+}
+
+[data-theme="light"] .form-group select option,
+[data-theme="light"] .filter-row select option {
+    background: #fff;
+    color: #1a1a2e;
+}
+
+/* Filter Row */
+.card-header-row {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    flex-wrap: wrap;
+    gap: 0.75rem;
+}
+
+.card-header-row h2 {
+    margin-bottom: 0;
+}
+
+.filter-row {
+    display: flex;
+    align-items: center;
+    gap: 0.5rem;
+}
+
+.filter-row label {
+    font-size: 0.78rem;
+    font-weight: 500;
+    color: var(--text-secondary);
+    text-transform: uppercase;
+    letter-spacing: 0.04em;
+    white-space: nowrap;
+}
+
+.filter-row select {
+    padding: 0.45rem 2rem 0.45rem 0.7rem;
+    background: var(--bg-input);
+    border: 1px solid transparent;
+    border-radius: var(--radius-sm);
+    color: var(--text-primary);
+    font-size: 0.85rem;
+    transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
+}
+
+.filter-row select:focus {
+    background-color: var(--bg-input-focus);
+    border-color: var(--accent);
+    box-shadow: 0 0 0 3px var(--accent-glow);
+}
+
+
+/* ===== Custom Multi-Select ===== */
+.custom-multi-select {
+    position: relative;
+    user-select: none;
+    width: 100%;
+}
+
+.select-box {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    width: 100%;
+    padding: 0.75rem 1rem;
+    background: var(--bg-input);
+    border: 1px solid var(--bg-card-border);
+    border-radius: var(--radius-sm);
+    color: var(--text-primary);
+    font-size: 0.95rem;
+    cursor: pointer;
+    transition: all var(--transition);
+}
+
+.select-box:hover {
+    background: var(--bg-hover);
+}
+
+.select-box.active {
+    border-color: var(--accent);
+    box-shadow: 0 0 0 4px var(--accent-glow);
+}
+
+.dropdown-icon {
+    transition: transform var(--transition);
+}
+
+.select-box.active .dropdown-icon {
+    transform: rotate(180deg);
+}
+
+.dropdown-menu {
+    position: absolute;
+    top: 100%;
+    left: 0;
+    width: 100%;
+    margin-top: 0.5rem;
+    background: rgba(15, 23, 42, 0.95);
+    backdrop-filter: blur(12px);
+    -webkit-backdrop-filter: blur(12px);
+    border: 1px solid var(--bg-card-border);
+    border-radius: var(--radius-sm);
+    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
+    padding: 1rem;
+    z-index: 100;
+    opacity: 0;
+    visibility: hidden;
+    transform: translateY(-10px);
+    transition: all var(--transition);
+}
+
+[data-theme="light"] .custom-multi-select .dropdown-menu {
+    background: rgba(255, 255, 255, 0.98);
+}
+
+.dropdown-menu.open {
+    opacity: 1;
+    visibility: visible;
+    transform: translateY(0);
+}
+
+.checkbox-group-vertical {
+    display: flex;
+    flex-direction: column;
+    gap: 0.75rem;
+    max-height: 200px;
+    overflow-y: auto;
+}
+
+.checkbox-item {
+    display: flex;
+    align-items: center;
+    gap: 0.75rem;
+    cursor: pointer;
+    font-size: 0.9rem;
+    color: var(--text-primary);
+    padding: 0.25rem 0;
+}
+
+.checkbox-item input[type="checkbox"] {
+    cursor: pointer;
+    width: 1.1rem;
+    height: 1.1rem;
+    accent-color: var(--accent);
+}
+
+/* ===== Buttons ===== */
+.btn-primary {
+    position: relative;
+    overflow: hidden;
+    padding: 0.75rem 1.75rem;
+    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
+    border: none;
+    border-radius: var(--radius-sm);
+    color: #fff;
+    font-family: inherit;
+    font-size: 0.95rem;
+    font-weight: 600;
+    letter-spacing: 0.02em;
+    cursor: pointer;
+    white-space: nowrap;
+    transition: all var(--transition);
+    box-shadow: 0 4px 15px var(--accent-glow);
+}
+
+.btn-primary::before {
+    content: '';
+    position: absolute;
+    top: 0;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    background: linear-gradient(rgba(255, 255, 255, 0.2), transparent);
+    border-radius: inherit;
+    opacity: 0;
+    transition: opacity var(--transition);
+}
+
+.btn-primary:hover {
+    transform: translateY(-2px);
+    box-shadow: 0 8px 25px var(--accent-glow);
+}
+
+.btn-primary:hover::before {
+    opacity: 1;
+}
+
+.btn-primary:active {
+    transform: translateY(1px);
+    box-shadow: 0 2px 10px var(--accent-glow);
+}
+
+.btn-delete {
+    padding: 0.35rem 0.7rem;
+    background: rgba(248, 113, 113, 0.1);
+    border: 1px solid rgba(248, 113, 113, 0.2);
+    border-radius: var(--radius-sm);
+    color: var(--error);
+    font-family: inherit;
+    font-size: 0.8rem;
+    cursor: pointer;
+    transition: background var(--transition), transform var(--transition);
+    position: relative;
+    overflow: hidden;
+}
+
+.btn-delete:hover {
+    background: rgba(248, 113, 113, 0.2);
+    transform: scale(1.05);
+}
+
+.btn-icon-toggle {
+    background: transparent;
+    border: 1px solid var(--bg-card-border);
+    color: var(--text-secondary);
+    width: 28px;
+    height: 28px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    border-radius: 6px;
+    cursor: pointer;
+    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
+    padding: 0;
+}
+
+.btn-icon-toggle:hover {
+    background: var(--bg-card);
+    border-color: var(--accent);
+    color: var(--accent);
+    transform: rotate(45deg);
+    box-shadow: 0 0 10px var(--accent-glow);
+}
+
+.btn-edit-classroom {
+    padding: 0.35rem 0.7rem;
+    background: rgba(99, 102, 241, 0.1);
+    border: 1px solid rgba(99, 102, 241, 0.2);
+    border-radius: var(--radius-sm);
+    color: var(--accent-hover);
+    cursor: pointer;
+    transition: all var(--transition);
+}
+
+.btn-edit-classroom:hover {
+    background: rgba(99, 102, 241, 0.2);
+    transform: translateY(-1px);
+}
+
+/* ===== Alerts ===== */
+.form-alert {
+    display: none;
+    padding: 0.6rem 1rem;
+    border-radius: var(--radius-sm);
+    font-size: 0.85rem;
+    margin-top: 0.75rem;
+}
+
+.form-alert.error {
+    display: block;
+    background: rgba(248, 113, 113, 0.1);
+    border: 1px solid rgba(248, 113, 113, 0.2);
+    color: var(--error);
+    animation: slideDownAlert 0.3s ease-out both;
+}
+
+.form-alert.success {
+    display: block;
+    background: rgba(52, 211, 153, 0.1);
+    border: 1px solid rgba(52, 211, 153, 0.2);
+    color: var(--success);
+    animation: slideDownAlert 0.3s ease-out both;
+}
+
+/* ===== Table ===== */
+.table-wrap {
+    overflow-x: auto;
+}
+
+table {
+    width: 100%;
+    border-collapse: collapse;
+}
+
+thead th {
+    text-align: left;
+    font-size: 0.78rem;
+    font-weight: 600;
+    color: var(--text-secondary);
+    text-transform: uppercase;
+    letter-spacing: 0.04em;
+    padding: 0.6rem 0.8rem;
+    border-bottom: 1px solid var(--bg-card-border);
+}
+
+tbody td {
+    padding: 0.85rem 1rem;
+    font-size: 0.95rem;
+    border-bottom: 1px solid var(--bg-card-border);
+    transition: background var(--transition);
+}
+
+[data-theme="light"] tbody td {
+    border-bottom-color: rgba(0, 0, 0, 0.08);
+}
+
+tbody tr {
+    transition: background var(--transition);
+    animation: slideInRow 0.3s ease-out both;
+}
+
+/* Animation delays */
+tbody tr:nth-child(1) {
+    animation-delay: 0.05s;
+}
+
+tbody tr:nth-child(2) {
+    animation-delay: 0.1s;
+}
+
+tbody tr:nth-child(3) {
+    animation-delay: 0.15s;
+}
+
+tbody tr:nth-child(4) {
+    animation-delay: 0.2s;
+}
+
+tbody tr:nth-child(5) {
+    animation-delay: 0.25s;
+}
+
+tbody tr:nth-child(n+6) {
+    animation-delay: 0.3s;
+}
+
+tbody tr:hover {
+    background: var(--bg-hover);
+}
+
+.loading-row {
+    text-align: center;
+    color: var(--text-secondary);
+    padding: 2rem !important;
+}
+
+/* ===== Badges ===== */
+.badge {
+    display: inline-block;
+    padding: 0.2rem 0.6rem;
+    border-radius: 999px;
+    font-size: 0.75rem;
+    font-weight: 600;
+    text-transform: uppercase;
+    letter-spacing: 0.03em;
+}
+
+.badge-admin {
+    background: rgba(248, 113, 113, 0.15);
+    color: var(--error);
+}
+
+.badge-teacher {
+    background: rgba(251, 191, 36, 0.15);
+    color: var(--warning);
+}
+
+.badge-student {
+    background: rgba(52, 211, 153, 0.15);
+    color: var(--success);
+}
+
+.badge-ef {
+    background: rgba(99, 102, 241, 0.15);
+    color: var(--accent-hover);
+}
+
+/* Classroom Status */
+.badge-available {
+    background: rgba(16, 185, 129, 0.15);
+    color: var(--success);
+}
+
+.badge-unavailable {
+    background: rgba(248, 113, 113, 0.15);
+    color: var(--error);
+}
+
+.status-cell {
+    display: flex;
+    align-items: center;
+    gap: 8px;
+}
+
+/* ===== Modal ===== */
+.modal-overlay {
+    display: none;
+    position: fixed;
+    top: 0;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    background: rgba(0, 0, 0, 0.6);
+    backdrop-filter: blur(4px);
+    z-index: 1000;
+    align-items: center;
+    justify-content: center;
+    opacity: 0;
+    transition: opacity var(--transition);
+}
+
+.modal-overlay.open {
+    display: flex;
+    opacity: 1;
+}
+
+.modal-content {
+    background: var(--bg-primary);
+    border: 1px solid var(--bg-card-border);
+    border-radius: var(--radius-md);
+    padding: 2rem;
+    width: 90%;
+    max-width: 500px;
+    position: relative;
+    transform: scale(0.95);
+    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
+    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
+}
+
+.modal-overlay.open .modal-content {
+    transform: scale(1);
+}
+
+.modal-close {
+    position: absolute;
+    top: 1rem;
+    right: 1rem;
+    background: none;
+    border: none;
+    font-size: 1.5rem;
+    color: var(--text-secondary);
+    cursor: pointer;
+    transition: color var(--transition);
+}
+
+.modal-close:hover {
+    color: var(--error);
+}
--- a/frontend/admin/css/layout.css
+++ b/frontend/admin/css/layout.css
@@ -0,0 +1,216 @@
+/* ===== Sidebar ===== */
+.sidebar {
+    width: 260px;
+    min-height: 100vh;
+    background: var(--bg-sidebar);
+    backdrop-filter: blur(20px);
+    -webkit-backdrop-filter: blur(20px);
+    border-right: 1px solid var(--bg-card-border);
+    display: flex;
+    flex-direction: column;
+    position: fixed;
+    left: 0;
+    top: 0;
+    bottom: 0;
+    z-index: 10;
+    transition: background 0.4s ease, border-color 0.4s ease, transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
+}
+
+.sidebar-header {
+    padding: 1.25rem;
+    border-bottom: 1px solid var(--bg-card-border);
+}
+
+.logo {
+    display: flex;
+    align-items: center;
+    gap: 0.75rem;
+    font-size: 1.15rem;
+    font-weight: 700;
+    letter-spacing: -0.02em;
+}
+
+.sidebar-nav {
+    flex: 1;
+    padding: 0.75rem;
+}
+
+.nav-item {
+    display: flex;
+    align-items: center;
+    gap: 0.75rem;
+    padding: 0.75rem 1rem;
+    margin-bottom: 0.25rem;
+    border-radius: var(--radius-sm);
+    color: var(--text-secondary);
+    text-decoration: none;
+    font-size: 0.95rem;
+    font-weight: 500;
+    transition: all var(--transition);
+    position: relative;
+    overflow: hidden;
+}
+
+.nav-item::before {
+    content: '';
+    position: absolute;
+    left: 0;
+    top: 0;
+    bottom: 0;
+    width: 3px;
+    background: var(--accent);
+    border-radius: 0 4px 4px 0;
+    transform: scaleY(0);
+    transition: transform var(--transition);
+    opacity: 0;
+}
+
+.nav-item:hover {
+    background: var(--bg-hover);
+    color: var(--text-primary);
+    transform: translateX(4px);
+}
+
+.nav-item.active {
+    background: rgba(139, 92, 246, 0.12);
+    color: var(--accent-hover);
+}
+
+[data-theme="light"] .nav-item.active {
+    background: rgba(99, 102, 241, 0.18);
+}
+
+.nav-item.active::before {
+    transform: scaleY(1);
+    opacity: 1;
+}
+
+.nav-item svg {
+    transition: transform var(--transition);
+}
+
+.nav-item:hover svg,
+.nav-item.active svg {
+    transform: scale(1.15) rotate(-5deg);
+}
+
+.sidebar-footer {
+    padding: 0.75rem;
+    border-top: 1px solid var(--bg-card-border);
+}
+
+.btn-logout {
+    width: 100%;
+    display: flex;
+    align-items: center;
+    gap: 0.6rem;
+    padding: 0.65rem 0.8rem;
+    border: none;
+    border-radius: var(--radius-sm);
+    background: none;
+    color: var(--text-secondary);
+    font-family: inherit;
+    font-size: 0.9rem;
+    cursor: pointer;
+    transition: background var(--transition), color var(--transition);
+    position: relative;
+}
+
+.btn-logout:hover {
+    background: rgba(248, 113, 113, 0.1);
+    color: var(--error);
+}
+
+/* ===== Main ===== */
+.main {
+    flex: 1;
+    margin-left: 260px;
+    min-height: 100vh;
+}
+
+.topbar {
+    padding: 1.5rem 2rem;
+    border-bottom: 1px solid var(--bg-card-border);
+    transition: border-color 0.4s ease;
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    gap: 1rem;
+}
+
+.topbar h1 {
+    font-size: 1.3rem;
+    font-weight: 700;
+    letter-spacing: -0.02em;
+    flex: 1;
+}
+
+.content {
+    padding: 1.5rem 2rem;
+    display: flex;
+    flex-direction: column;
+    gap: 1.5rem;
+    animation: fadeIn 0.2s ease;
+}
+
+/* ===== Mobile Menu Toggle ===== */
+.menu-toggle {
+    display: none;
+    padding: 0.4rem;
+    background: none;
+    border: none;
+    color: var(--text-primary);
+    cursor: pointer;
+    border-radius: var(--radius-sm);
+    transition: background var(--transition);
+}
+
+.menu-toggle:hover {
+    background: var(--bg-hover);
+}
+
+.sidebar-overlay {
+    display: none;
+    position: fixed;
+    top: 0;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    background: rgba(0, 0, 0, 0.5);
+    backdrop-filter: blur(2px);
+    z-index: 9;
+    opacity: 0;
+    transition: opacity var(--transition);
+}
+
+/* ===== Responsive Mobile ===== */
+@media (max-width: 768px) {
+    .sidebar {
+        transform: translateX(-100%);
+    }
+
+    .sidebar.open {
+        transform: translateX(0);
+    }
+
+    .main {
+        margin-left: 0;
+    }
+
+    .topbar {
+        padding: 1rem 1.25rem;
+    }
+
+    .content {
+        padding: 1.25rem;
+    }
+
+    .menu-toggle,
+    .sidebar-overlay {
+        display: block;
+    }
+
+    .sidebar-overlay.open {
+        opacity: 1;
+    }
+}
--- a/frontend/admin/css/main.css
+++ b/frontend/admin/css/main.css
@@ -0,0 +1,110 @@
+/* ===== Reset & Base ===== */
+*,
+*::before,
+*::after {
+    margin: 0;
+    padding: 0;
+    box-sizing: border-box;
+}
+
+:root {
+    /* Deep dark premium background */
+    --bg-primary: #0a0a0f;
+    --bg-sidebar: rgba(255, 255, 255, 0.02);
+    --bg-card: rgba(255, 255, 255, 0.03);
+    --bg-card-border: rgba(255, 255, 255, 0.05);
+    --bg-input: rgba(255, 255, 255, 0.04);
+    --bg-input-focus: rgba(255, 255, 255, 0.08);
+    --bg-hover: rgba(255, 255, 255, 0.06);
+
+    /* Typography */
+    --text-primary: #f8fafc;
+    --text-secondary: #94a3b8;
+    --text-placeholder: #475569;
+
+    /* Vibrant Accents */
+    --accent: #8b5cf6;
+    --accent-hover: #a78bfa;
+    --accent-glow: rgba(139, 92, 246, 0.4);
+    --accent-secondary: #ec4899;
+
+    /* Status Colors */
+    --error: #ef4444;
+    --success: #10b981;
+    --warning: #f59e0b;
+
+    /* Spatial */
+    --radius-sm: 10px;
+    --radius-md: 16px;
+    --transition: 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
+}
+
+/* ===== Light Theme ===== */
+[data-theme="light"] {
+    --bg-primary: #f8fafc;
+    --bg-sidebar: rgba(255, 255, 255, 0.7);
+    --bg-card: rgba(255, 255, 255, 0.75);
+    --bg-card-border: rgba(0, 0, 0, 0.08);
+    --bg-input: rgba(0, 0, 0, 0.03);
+    --bg-input-focus: rgba(0, 0, 0, 0.06);
+    --bg-hover: rgba(0, 0, 0, 0.05);
+    --text-primary: #0f172a;
+    --text-secondary: #475569;
+    --text-placeholder: #94a3b8;
+    --accent: #6366f1;
+    --accent-hover: #4f46e5;
+    --accent-glow: rgba(99, 102, 241, 0.3);
+    --accent-secondary: #d946ef;
+    
+    --error: #ef4444;
+    --success: #10b981;
+    --warning: #f59e0b;
+}
+
+html {
+    font-size: 16px;
+    -webkit-font-smoothing: antialiased;
+}
+
+body {
+    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
+    background: var(--bg-primary);
+    color: var(--text-primary);
+    min-height: 100vh;
+    display: flex;
+    transition: background 0.4s ease, color 0.4s ease;
+}
+
+/* ===== Animations ===== */
+@keyframes fadeIn {
+    from { opacity: 0; transform: translateY(4px); }
+    to { opacity: 1; transform: translateY(0); }
+}
+
+@keyframes slideUpCard {
+    from { opacity: 0; transform: translateY(15px); }
+    to { opacity: 1; transform: translateY(0); }
+}
+
+@keyframes slideDownAlert {
+    from { opacity: 0; transform: translateY(-10px); }
+    to { opacity: 1; transform: translateY(0); }
+}
+
+@keyframes slideInRow {
+    from { opacity: 0; transform: translateX(-10px); }
+    to { opacity: 1; transform: translateX(0); }
+}
+
+@keyframes admin-ripple {
+    to { transform: scale(4); opacity: 0; }
+}
+
+.ripple {
+    position: absolute;
+    border-radius: 50%;
+    transform: scale(0);
+    animation: admin-ripple 0.6s linear;
+    background-color: rgba(255, 255, 255, 0.3);
+    pointer-events: none;
+}
--- a/frontend/admin/index.html
+++ b/frontend/admin/index.html
@@ -8,7 +8,11 @@
    <link rel="preconnect" href="https://fonts.googleapis.com">
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
    <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap" rel="stylesheet">
-    <link rel="stylesheet" href="admin.css">
+
+    <!-- CSS Modules -->
+    <link rel="stylesheet" href="css/main.css">
+    <link rel="stylesheet" href="css/layout.css">
+    <link rel="stylesheet" href="css/components.css">
 </head>

 <body>
@@ -31,7 +35,7 @@
            </div>
        </div>
        <nav class="sidebar-nav">
-            <a href="#" class="nav-item active" data-tab="users">
+            <a href="#" class="nav-item" data-tab="users">
                <svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"
                    stroke-linecap="round" stroke-linejoin="round">
                    <path d="M17 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2" />
@@ -110,372 +114,17 @@
                    <line x1="3" y1="18" x2="21" y2="18" />
                </svg>
            </button>
-            <h1 id="page-title">Управление пользователями</h1>
+            <h1 id="page-title">Загрузка...</h1>
        </header>

-        <!-- ===== Users Tab ===== -->
-        <section class="content tab-content" id="tab-users">
-            <div class="card create-card">
-                <h2>Новый пользователь</h2>
-                <form id="create-form">
-                    <div class="form-row">
-                        <div class="form-group">
-                            <label for="new-username">Имя пользователя</label>
-                            <input type="text" id="new-username" placeholder="username" required>
-                        </div>
-                        <div class="form-group">
-                            <label for="new-password">Пароль</label>
-                            <input type="text" id="new-password" placeholder="password" required>
-                        </div>
-                        <div class="form-group">
-                            <label for="new-role">Роль</label>
-                            <select id="new-role">
-                                <option value="STUDENT">Студент</option>
-                                <option value="TEACHER">Преподаватель</option>
-                                <option value="ADMIN">Администратор</option>
-                            </select>
-                        </div>
-                        <button type="submit" class="btn-create">Создать</button>
-                    </div>
-                    <div class="form-alert" id="create-alert" role="alert"></div>
-                </form>
-            </div>
-            <div class="card">
-                <h2>Все пользователи</h2>
-                <div class="table-wrap">
-                    <table id="users-table">
-                        <thead>
-                            <tr>
-                                <th>ID</th>
-                                <th>Имя пользователя</th>
-                                <th>Роль</th>
-                                <th></th>
-                            </tr>
-                        </thead>
-                        <tbody id="users-tbody">
-                            <tr>
-                                <td colspan="4" class="loading-row">Загрузка...</td>
-                            </tr>
-                        </tbody>
-                    </table>
-                </div>
-            </div>
+        <!-- Dynamic Content Injected Here -->
+        <section class="content" id="app-content">
+            <!-- Content loaded via main.js -->
        </section>
-
-        <!-- ===== Groups Tab ===== -->
-        <section class="content tab-content" id="tab-groups" style="display:none;">
-            <div class="card create-card">
-                <h2>Новая группа</h2>
-                <form id="create-group-form">
-                    <div class="form-row">
-                        <div class="form-group">
-                            <label for="new-group-name">Название группы</label>
-                            <input type="text" id="new-group-name" placeholder="ИВТ-21-1" required>
-                        </div>
-                        <div class="form-group">
-                            <label for="new-group-ef">Форма обучения</label>
-                            <select id="new-group-ef">
-                                <option value="">Загрузка...</option>
-                            </select>
-                        </div>
-                        <button type="submit" class="btn-create">Создать</button>
-                    </div>
-                    <div class="form-alert" id="create-group-alert" role="alert"></div>
-                </form>
-            </div>
-            <div class="card">
-                <div class="card-header-row">
-                    <h2>Все группы</h2>
-                    <div class="filter-row">
-                        <label for="filter-ef">Фильтр:</label>
-                        <select id="filter-ef">
-                            <option value="">Все формы</option>
-                        </select>
-                    </div>
-                </div>
-                <div class="table-wrap">
-                    <table id="groups-table">
-                        <thead>
-                            <tr>
-                                <th>ID</th>
-                                <th>Название</th>
-                                <th>Форма обучения</th>
-                                <th></th>
-                            </tr>
-                        </thead>
-                        <tbody id="groups-tbody">
-                            <tr>
-                                <td colspan="4" class="loading-row">Загрузка...</td>
-                            </tr>
-                        </tbody>
-                    </table>
-                </div>
-            </div>
-        </section>
-
-        <!-- ===== Education Forms Tab ===== -->
-        <section class="content tab-content" id="tab-edu-forms" style="display:none;">
-            <div class="card create-card">
-                <h2>Новая форма обучения</h2>
-                <form id="create-ef-form">
-                    <div class="form-row">
-                        <div class="form-group">
-                            <label for="new-ef-name">Название</label>
-                            <input type="text" id="new-ef-name" placeholder="Бакалавриат" required>
-                        </div>
-                        <button type="submit" class="btn-create">Создать</button>
-                    </div>
-                    <div class="form-alert" id="create-ef-alert" role="alert"></div>
-                </form>
-            </div>
-            <div class="card">
-                <h2>Все формы обучения</h2>
-                <div class="table-wrap">
-                    <table id="ef-table">
-                        <thead>
-                            <tr>
-                                <th>ID</th>
-                                <th>Название</th>
-                                <th></th>
-                            </tr>
-                        </thead>
-                        <tbody id="ef-tbody">
-                            <tr>
-                                <td colspan="3" class="loading-row">Загрузка...</td>
-                            </tr>
-                        </tbody>
-                    </table>
-                </div>
-            </div>
-        </section>
-
-        <!-- ===== Equipments Tab ===== -->
-        <section class="content tab-content" id="tab-equipments" style="display:none;">
-            <div class="card create-card">
-                <h2>Новое оборудование</h2>
-                <form id="create-equipment-form">
-                    <div class="form-row">
-                        <div class="form-group">
-                            <label for="new-equipment-name">Название оборудования</label>
-                            <input type="text" id="new-equipment-name" placeholder="Проектор" required>
-                        </div>
-                        <button type="submit" class="btn-create">Добавить</button>
-                    </div>
-                    <div class="form-alert" id="create-equipment-alert" role="alert"></div>
-                </form>
-            </div>
-            <div class="card">
-                <h2>Справочник оборудования</h2>
-                <div class="table-wrap">
-                    <table id="equipments-table">
-                        <thead>
-                            <tr>
-                                <th>ID</th>
-                                <th>Название</th>
-                                <th></th>
-                            </tr>
-                        </thead>
-                        <tbody id="equipments-tbody">
-                            <tr>
-                                <td colspan="3" class="loading-row">Загрузка...</td>
-                            </tr>
-                        </tbody>
-                    </table>
-                </div>
-            </div>
-        </section>
-
-        <!-- ===== Classrooms Tab ===== -->
-        <section class="content tab-content" id="tab-classrooms" style="display:none;">
-            <div class="card create-card">
-                <h2>Новая аудитория</h2>
-                <form id="create-classroom-form">
-                    <div class="form-row">
-                        <div class="form-group">
-                            <label for="new-classroom-name">Номер / Название</label>
-                            <input type="text" id="new-classroom-name" placeholder="101 Ленинская" required>
-                        </div>
-                        <div class="form-group">
-                            <label for="new-classroom-capacity">Вместимость (чел.)</label>
-                            <input type="number" id="new-classroom-capacity" placeholder="30" min="1" required>
-                        </div>
-                    </div>
-                    <div class="form-row" style="margin-top: 1rem;">
-                        <div class="form-group" style="flex: 2;">
-                            <label>Оборудование</label>
-                            <div class="custom-multi-select">
-                                <div class="select-box" id="equipment-select-box">
-                                    <span class="select-text" id="equipment-select-text">Выберите оборудование...</span>
-                                    <svg class="dropdown-icon" width="12" height="8" viewBox="0 0 12 8" fill="none"
-                                        xmlns="http://www.w3.org/2000/svg">
-                                        <path d="M1 1.5L6 6.5L11 1.5" stroke="#9ca3af" stroke-width="2"
-                                            stroke-linecap="round" stroke-linejoin="round" />
-                                    </svg>
-                                </div>
-                                <div class="dropdown-menu" id="equipment-dropdown-menu">
-                                    <div id="equipment-checkboxes" class="checkbox-group-vertical">
-                                        <!-- Подгружается через JS -->
-                                        <p class="text-muted"><small>Загрузка...</small></p>
-                                    </div>
-                                </div>
-                            </div>
-                        </div>
-                        <div class="form-group" style="display: flex; align-items: flex-end;">
-                            <button type="submit" class="btn-create">Добавить</button>
-                        </div>
-                    </div>
-                    <div class="form-alert" id="create-classroom-alert" role="alert"></div>
-                </form>
-            </div>
-            <div class="card">
-                <h2>Список аудиторий</h2>
-                <div class="table-wrap">
-                    <table id="classrooms-table">
-                        <thead>
-                            <tr>
-                                <th>ID</th>
-                                <th>Название</th>
-                                <th>Вместимость</th>
-                                <th>Оборудование</th>
-                                <th>Статус</th>
-                                <th></th>
-                            </tr>
-                        </thead>
-                        <tbody id="classrooms-tbody">
-                            <tr>
-                                <td colspan="6" class="loading-row">Загрузка...</td>
-                            </tr>
-                        </tbody>
-                    </table>
-                </div>
-            </div>
-        </section>
-
-        <!-- ===== Subjects Tab ===== -->
-        <section class="content tab-content" id="tab-subjects" style="display:none;">
-            <div class="card create-card">
-                <h2>Новая дисциплина</h2>
-                <form id="create-subject-form">
-                    <div class="form-row">
-                        <div class="form-group">
-                            <label for="new-subject-name">Название дисциплины</label>
-                            <input type="text" id="new-subject-name" placeholder="Высшая математика" required>
-                        </div>
-                        <button type="submit" class="btn-create">Добавить</button>
-                    </div>
-                    <div class="form-alert" id="create-subject-alert" role="alert"></div>
-                </form>
-            </div>
-            <div class="card create-card">
-                <h2>Привязка преподавателя к дисциплине</h2>
-                <form id="assign-teacher-form">
-                    <div class="form-row">
-                        <div class="form-group">
-                            <label for="assign-teacher-select">Преподаватель</label>
-                            <select id="assign-teacher-select">
-                                <option value="">Загрузка...</option>
-                            </select>
-                        </div>
-                        <div class="form-group">
-                            <label for="assign-subject-select">Дисциплина</label>
-                            <select id="assign-subject-select">
-                                <option value="">Загрузка...</option>
-                            </select>
-                        </div>
-                        <button type="submit" class="btn-create">Привязать</button>
-                    </div>
-                    <div class="form-alert" id="assign-teacher-alert" role="alert"></div>
-                </form>
-            </div>
-            <div class="card">
-                <h2>Все дисциплины</h2>
-                <div class="table-wrap">
-                    <table id="subjects-table">
-                        <thead>
-                            <tr>
-                                <th>ID</th>
-                                <th>Название</th>
-                                <th></th>
-                            </tr>
-                        </thead>
-                        <tbody id="subjects-tbody">
-                            <tr>
-                                <td colspan="3" class="loading-row">Загрузка...</td>
-                            </tr>
-                        </tbody>
-                    </table>
-                </div>
-            </div>
-            <div class="card">
-                <h2>Привязки преподавателей</h2>
-                <div class="table-wrap">
-                    <table id="teacher-subjects-table">
-                        <thead>
-                            <tr>
-                                <th>Преподаватель</th>
-                                <th>Дисциплина</th>
-                                <th></th>
-                            </tr>
-                        </thead>
-                        <tbody id="teacher-subjects-tbody">
-                            <tr>
-                                <td colspan="3" class="loading-row">Загрузка...</td>
-                            </tr>
-                        </tbody>
-                    </table>
-                </div>
-            </div>
-        </section>
-
-        <!-- ===== Edit Classroom Modal ===== -->
-        <div class="modal-overlay" id="modal-edit-classroom">
-            <div class="modal-content">
-                <h2>Редактировать аудиторию</h2>
-                <button class="modal-close" id="modal-edit-classroom-close">&times;</button>
-                <form id="edit-classroom-form">
-                    <input type="hidden" id="edit-classroom-id">
-                    <div class="form-row" style="margin-top: 1rem;">
-                        <div class="form-group">
-                            <label for="edit-classroom-name">Номер / Название</label>
-                            <input type="text" id="edit-classroom-name" required>
-                        </div>
-                        <div class="form-group">
-                            <label for="edit-classroom-capacity">Вместимость (чел.)</label>
-                            <input type="number" id="edit-classroom-capacity" min="1" required>
-                        </div>
-                    </div>
-                    <div class="form-row" style="margin-top: 1rem;">
-                        <div class="form-group" style="flex: 2;">
-                            <label>Оборудование</label>
-                            <div class="custom-multi-select">
-                                <div class="select-box" id="edit-equipment-select-box">
-                                    <span class="select-text" id="edit-equipment-select-text">Выберите
-                                        оборудование...</span>
-                                    <svg class="dropdown-icon" width="12" height="8" viewBox="0 0 12 8" fill="none"
-                                        xmlns="http://www.w3.org/2000/svg">
-                                        <path d="M1 1.5L6 6.5L11 1.5" stroke="#9ca3af" stroke-width="2"
-                                            stroke-linecap="round" stroke-linejoin="round" />
-                                    </svg>
-                                </div>
-                                <div class="dropdown-menu" id="edit-equipment-dropdown-menu">
-                                    <div id="edit-equipment-checkboxes" class="checkbox-group-vertical">
-                                        <!-- Подгружается через JS -->
-                                    </div>
-                                </div>
-                            </div>
-                        </div>
-                        <div class="form-group" style="display: flex; align-items: flex-end;">
-                            <button type="submit" class="btn-create" style="width: 100%;">Сохранить</button>
-                        </div>
-                    </div>
-                    <div class="form-alert" id="edit-classroom-alert" role="alert"></div>
-                </form>
-            </div>
-        </div>
    </main>

    <script src="/theme-toggle.js"></script>
-    <script src="admin.js"></script>
+    <script type="module" src="js/main.js"></script>
 </body>

 </html>
--- a/frontend/admin/js/api.js
+++ b/frontend/admin/js/api.js
@@ -0,0 +1,57 @@
+const token = localStorage.getItem('token');
+
+export function getToken() {
+    return token;
+}
+
+export function isAuthenticatedAsAdmin() {
+    const role = localStorage.getItem('role');
+    return token && role === 'ADMIN';
+}
+
+function getHeaders(contentType = 'application/json') {
+    const headers = {
+        'Authorization': `Bearer ${token}`
+    };
+    if (contentType) {
+        headers['Content-Type'] = contentType;
+    }
+    return headers;
+}
+
+export async function apiFetch(endpoint, method = 'GET', body = null) {
+    const options = {
+        method,
+        headers: getHeaders(body ? 'application/json' : null)
+    };
+
+    if (body) {
+        options.body = JSON.stringify(body);
+    }
+
+    const response = await fetch(endpoint, options);
+
+    // Si status is 401 or 403, we should probably redirect to login, 
+    // but for now let's just throw an error or handle it in the view.
+
+    let data;
+    try {
+        data = await response.json();
+    } catch (e) {
+        data = null;
+    }
+
+    if (!response.ok) {
+        throw new Error(data?.message || `Ошибка HTTP: ${response.status}`);
+    }
+
+    return data;
+}
+
+// Shortcut methods
+export const api = {
+    get: (url) => apiFetch(url, 'GET'),
+    post: (url, body) => apiFetch(url, 'POST', body),
+    put: (url, body) => apiFetch(url, 'PUT', body),
+    delete: (url, body = null) => apiFetch(url, 'DELETE', body)
+};
--- a/frontend/admin/js/main.js
+++ b/frontend/admin/js/main.js
@@ -0,0 +1,101 @@
+import { isAuthenticatedAsAdmin } from './api.js';
+import { applyRippleEffect, closeAllDropdownsOnOutsideClick } from './utils.js';
+
+import { initUsers } from './views/users.js';
+import { initGroups } from './views/groups.js';
+import { initEduForms } from './views/edu-forms.js';
+import { initEquipments } from './views/equipments.js';
+import { initClassrooms } from './views/classrooms.js';
+import { initSubjects } from './views/subjects.js';
+
+// Configuration
+const ROUTES = {
+    users: { title: 'Управление пользователями', file: 'views/users.html', init: initUsers },
+    groups: { title: 'Управление группами', file: 'views/groups.html', init: initGroups },
+    'edu-forms': { title: 'Формы обучения', file: 'views/edu-forms.html', init: initEduForms },
+    equipments: { title: 'Оборудование', file: 'views/equipments.html', init: initEquipments },
+    classrooms: { title: 'Аудитории', file: 'views/classrooms.html', init: initClassrooms },
+    subjects: { title: 'Дисциплины и преподаватели', file: 'views/subjects.html', init: initSubjects },
+};
+
+let currentTab = null;
+
+// DOM Elements
+const appContent = document.getElementById('app-content');
+const pageTitle = document.getElementById('page-title');
+const navItems = document.querySelectorAll('.nav-item[data-tab]');
+const sidebar = document.querySelector('.sidebar');
+const sidebarOverlay = document.getElementById('sidebar-overlay');
+const menuToggle = document.getElementById('menu-toggle');
+const btnLogout = document.getElementById('btn-logout');
+
+// Initial auth check
+if (!isAuthenticatedAsAdmin()) {
+    window.location.href = '/';
+}
+
+// Setup Global Effects
+applyRippleEffect();
+closeAllDropdownsOnOutsideClick();
+
+// Menu Toggle
+menuToggle.addEventListener('click', () => {
+    sidebar.classList.toggle('open');
+    sidebarOverlay.classList.toggle('open');
+});
+sidebarOverlay.addEventListener('click', () => {
+    sidebar.classList.remove('open');
+    sidebarOverlay.classList.remove('open');
+});
+
+// Logout
+btnLogout.addEventListener('click', () => {
+    localStorage.removeItem('token');
+    localStorage.removeItem('role');
+    window.location.href = '/';
+});
+
+// Navigation
+navItems.forEach(item => {
+    item.addEventListener('click', (e) => {
+        e.preventDefault();
+        const tab = item.dataset.tab;
+        switchTab(tab);
+    });
+});
+
+async function switchTab(tab) {
+    if (currentTab === tab || !ROUTES[tab]) return;
+
+    // UI Update
+    navItems.forEach(n => n.classList.remove('active'));
+    document.querySelector(`.nav-item[data-tab="${tab}"]`)?.classList.add('active');
+    pageTitle.textContent = ROUTES[tab].title;
+
+    // Load template
+    try {
+        appContent.innerHTML = '<div class="loading-row">Загрузка...</div>';
+        const response = await fetch(ROUTES[tab].file);
+        if (!response.ok) throw new Error('Failed to load view');
+
+        const html = await response.text();
+        appContent.innerHTML = html;
+
+        // Initialize logic for the tab
+        if (ROUTES[tab].init) {
+            ROUTES[tab].init();
+        }
+
+        currentTab = tab;
+    } catch (e) {
+        appContent.innerHTML = `<div class="form-alert error">Ошибка загрузки вкладки: ${e.message}</div>`;
+        console.error(e);
+    }
+
+    // Close mobile menu if open
+    sidebar.classList.remove('open');
+    sidebarOverlay.classList.remove('open');
+}
+
+// Load default tab
+switchTab('users');
--- a/frontend/admin/js/utils.js
+++ b/frontend/admin/js/utils.js
@@ -0,0 +1,102 @@
+export const ESCAPE_MAP = {
+    '&': '&amp;',
+    '<': '&lt;',
+    '>': '&gt;',
+    '"': '&quot;',
+    "'": '&#39;'
+};
+
+export function escapeHtml(str) {
+    if (!str) return '';
+    return String(str).replace(/[&<>"']/g, m => ESCAPE_MAP[m]);
+}
+
+export function showAlert(elementId, msg, type) {
+    const el = document.getElementById(elementId);
+    if (!el) return;
+    el.className = 'form-alert ' + type;
+    el.textContent = msg;
+}
+
+export function hideAlert(elementId) {
+    const el = document.getElementById(elementId);
+    if (!el) return;
+    el.className = 'form-alert';
+    el.textContent = '';
+}
+
+export function applyRippleEffect() {
+    document.addEventListener('click', function (e) {
+        const btn = e.target.closest('.btn-primary, .btn-delete, .btn-logout');
+        if (!btn) return;
+
+        const rect = btn.getBoundingClientRect();
+        const x = e.clientX - rect.left;
+        const y = e.clientY - rect.top;
+
+        const ripple = document.createElement('span');
+        ripple.classList.add('ripple');
+        ripple.style.left = `${x}px`;
+        ripple.style.top = `${y}px`;
+
+        if (getComputedStyle(btn).position === 'static') {
+            btn.style.position = 'relative';
+        }
+        btn.style.overflow = 'hidden';
+
+        btn.appendChild(ripple);
+
+        setTimeout(() => ripple.remove(), 600);
+    });
+}
+
+export function initMultiSelect(boxId, menuId, textId, checkboxContainerId) {
+    const box = document.getElementById(boxId);
+    const menu = document.getElementById(menuId);
+    const container = document.getElementById(checkboxContainerId);
+    if (!box || !menu || !container) return;
+
+    // Remove old listeners to prevent duplication if re-initialized
+    const newBox = box.cloneNode(true);
+    box.parentNode.replaceChild(newBox, box);
+
+    newBox.addEventListener('click', (e) => {
+        e.stopPropagation();
+        const isOpen = menu.classList.contains('open');
+        document.querySelectorAll('.dropdown-menu').forEach(m => m.classList.remove('open'));
+        document.querySelectorAll('.select-box').forEach(b => b.classList.remove('active'));
+        if (!isOpen) {
+            menu.classList.add('open');
+            newBox.classList.add('active');
+        }
+    });
+
+    menu.addEventListener('click', (e) => {
+        e.stopPropagation();
+    });
+
+    container.addEventListener('change', () => {
+        updateSelectText(checkboxContainerId, textId);
+    });
+}
+
+export function updateSelectText(containerId, textId) {
+    const container = document.getElementById(containerId);
+    const textEl = document.getElementById(textId);
+    if (!container || !textEl) return;
+    const checked = Array.from(container.querySelectorAll('input:checked'));
+    if (checked.length === 0) {
+        textEl.textContent = 'Выберите оборудование...';
+    } else if (checked.length === 1) {
+        textEl.textContent = checked[0].parentElement.textContent.trim();
+    } else {
+        textEl.textContent = `Выбрано: ${checked.length}`;
+    }
+}
+
+export function closeAllDropdownsOnOutsideClick() {
+    document.addEventListener('click', () => {
+        document.querySelectorAll('.dropdown-menu').forEach(m => m.classList.remove('open'));
+        document.querySelectorAll('.select-box').forEach(b => b.classList.remove('active'));
+    });
+}
--- a/frontend/admin/js/views/classrooms.js
+++ b/frontend/admin/js/views/classrooms.js
@@ -0,0 +1,185 @@
+import { api } from '../api.js';
+import { escapeHtml, showAlert, hideAlert, initMultiSelect, updateSelectText } from '../utils.js';
+import { fetchEquipments, renderEquipmentCheckboxes } from './equipments.js';
+
+export async function initClassrooms() {
+    const classroomsTbody = document.getElementById('classrooms-tbody');
+    const createClassroomForm = document.getElementById('create-classroom-form');
+
+    const equipmentCheckboxes = document.getElementById('equipment-checkboxes');
+    const editEquipmentCheckboxes = document.getElementById('edit-equipment-checkboxes');
+
+    const modalEditClassroom = document.getElementById('modal-edit-classroom');
+    const modalEditClassroomClose = document.getElementById('modal-edit-classroom-close');
+    const editClassroomForm = document.getElementById('edit-classroom-form');
+
+    let allEquipments = [];
+    let editingClassroomData = null;
+
+    initMultiSelect('equipment-select-box', 'equipment-dropdown-menu', 'equipment-select-text', 'equipment-checkboxes');
+    initMultiSelect('edit-equipment-select-box', 'edit-equipment-dropdown-menu', 'edit-equipment-select-text', 'edit-equipment-checkboxes');
+
+    async function loadInitialData() {
+        try {
+            allEquipments = await fetchEquipments();
+            renderEquipmentCheckboxes(allEquipments, 'equipment-checkboxes', 'equipment-select-text');
+            await loadClassrooms();
+        } catch (e) {
+            classroomsTbody.innerHTML = '<tr><td colspan="6" class="loading-row">Ошибка загрузки данных</td></tr>';
+        }
+    }
+
+    async function loadClassrooms() {
+        try {
+            const classrooms = await api.get('/api/classrooms');
+            renderClassrooms(classrooms);
+        } catch (e) {
+            classroomsTbody.innerHTML = '<tr><td colspan="6" class="loading-row">Ошибка загрузки</td></tr>';
+        }
+    }
+
+    function renderClassrooms(classrooms) {
+        if (!classrooms || !classrooms.length) {
+            classroomsTbody.innerHTML = '<tr><td colspan="6" class="loading-row">Нет аудиторий</td></tr>';
+            return;
+        }
+        classroomsTbody.innerHTML = classrooms.map(c => {
+            const equipHtml = c.equipments && c.equipments.length
+                ? c.equipments.map(eq => escapeHtml(eq.name)).join(', ')
+                : '—';
+
+            return `
+      <tr>
+        <td>${c.id}</td>
+        <td><strong>${escapeHtml(c.name)}</strong></td>
+        <td>${c.capacity} чел.</td>
+        <td><small>${equipHtml}</small></td>
+        <td>
+            <div class="status-cell">
+                <span class="badge ${c.isAvailable ? 'badge-available' : 'badge-unavailable'}">
+                    ${c.isAvailable ? 'Доступна' : 'Не доступна'}
+                </span>
+                <button class="btn-icon-toggle" data-id="${c.id}" data-current-status="${c.isAvailable}" title="Сменить статус">
+                    <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M21 12a9 9 0 01-9 9m9-9a9 9 0 00-9-9m9 9H3m9 9a9 9 0 01-9-9m9 9c1.657 0 3-4.03 3-9s-1.343-9-3-9m0 18c-1.657 0-3-4.03-3-9s1.343-9 3-9m-9 9a9 9 0 019-9"></path></svg>
+                </button>
+            </div>
+        </td>
+          <td style="text-align: right;">
+              <button class="btn-edit-classroom" data-id="${c.id}">Изменить</button>
+              <button class="btn-delete" data-id="${c.id}" style="margin-left: 0.5rem;">Удалить</button>
+          </td>
+        </tr>`;
+        }).join('');
+    }
+
+    createClassroomForm.addEventListener('submit', async (e) => {
+        e.preventDefault();
+        hideAlert('create-classroom-alert');
+        const name = document.getElementById('new-classroom-name').value.trim();
+        const capacity = parseInt(document.getElementById('new-classroom-capacity').value, 10);
+
+        const checkedBoxes = Array.from(equipmentCheckboxes.querySelectorAll('input:checked'));
+        const equipmentIds = checkedBoxes.map(chk => parseInt(chk.value, 10));
+
+        if (!name || isNaN(capacity)) { showAlert('create-classroom-alert', 'Заполните обязательные поля', 'error'); return; }
+
+        try {
+            const data = await api.post('/api/classrooms', { name, capacity, equipmentIds, isAvailable: true });
+            showAlert('create-classroom-alert', `Аудитория "${escapeHtml(data.name)}" добавлена`, 'success');
+            createClassroomForm.reset();
+            updateSelectText('equipment-checkboxes', 'equipment-select-text');
+            loadClassrooms();
+        } catch (e) {
+            showAlert('create-classroom-alert', e.message || 'Ошибка создания', 'error');
+        }
+    });
+
+    classroomsTbody.addEventListener('click', async (e) => {
+        const btnDelete = e.target.closest('.btn-delete');
+        const btnToggleStatus = e.target.closest('.btn-icon-toggle');
+        const btnEdit = e.target.closest('.btn-edit-classroom');
+
+        if (btnDelete) {
+            if (!confirm('Удалить аудиторию?')) return;
+            try {
+                await api.delete('/api/classrooms/' + btnDelete.dataset.id);
+                loadClassrooms();
+            } catch (err) { alert('Ошибка удаления'); }
+        }
+
+        if (btnToggleStatus) {
+            const id = btnToggleStatus.dataset.id;
+            const currentStatus = btnToggleStatus.dataset.currentStatus === 'true';
+            try {
+                await api.put('/api/classrooms/' + id, { isAvailable: !currentStatus });
+                loadClassrooms();
+            } catch (err) { alert('Ошибка изменения статуса'); }
+        }
+
+        if (btnEdit) {
+            openEditClassroomModal(btnEdit.dataset.id);
+        }
+    });
+
+    async function openEditClassroomModal(id) {
+        try {
+            // Can optimize by using already loaded classrooms, but fetch is safer to get fresh data
+            const classrooms = await api.get('/api/classrooms');
+            editingClassroomData = classrooms.find(c => c.id == id);
+
+            if (!editingClassroomData) return;
+
+            document.getElementById('edit-classroom-id').value = editingClassroomData.id;
+            document.getElementById('edit-classroom-name').value = editingClassroomData.name;
+            document.getElementById('edit-classroom-capacity').value = editingClassroomData.capacity;
+
+            const existingEquipIds = editingClassroomData.equipments.map(e => e.id);
+            renderEquipmentCheckboxes(allEquipments, 'edit-equipment-checkboxes', 'edit-equipment-select-text', existingEquipIds);
+
+            hideAlert('edit-classroom-alert');
+            modalEditClassroom.classList.add('open');
+        } catch (e) {
+            alert('Ошибка загрузки данных аудитории');
+        }
+    }
+
+    modalEditClassroomClose.addEventListener('click', () => {
+        modalEditClassroom.classList.remove('open');
+    });
+
+    modalEditClassroom.addEventListener('click', (e) => {
+        if (e.target === modalEditClassroom) {
+            modalEditClassroom.classList.remove('open');
+        }
+    });
+
+    editClassroomForm.addEventListener('submit', async (e) => {
+        e.preventDefault();
+        hideAlert('edit-classroom-alert');
+        const id = document.getElementById('edit-classroom-id').value;
+        const name = document.getElementById('edit-classroom-name').value.trim();
+        const capacity = parseInt(document.getElementById('edit-classroom-capacity').value, 10);
+
+        const checkedBoxes = Array.from(editEquipmentCheckboxes.querySelectorAll('input:checked'));
+        const equipmentIds = checkedBoxes.map(chk => parseInt(chk.value, 10));
+
+        if (!name || isNaN(capacity)) { showAlert('edit-classroom-alert', 'Заполните обязательные поля', 'error'); return; }
+
+        try {
+            const data = await api.put('/api/classrooms/' + id, {
+                name,
+                capacity,
+                equipmentIds,
+                isAvailable: editingClassroomData.isAvailable
+            });
+            modalEditClassroom.classList.remove('open');
+            // We show alert on the main create form area or we could use toast
+            showAlert('create-classroom-alert', `Аудитория "${escapeHtml(data.name)}" обновлена`, 'success');
+            loadClassrooms();
+        } catch (e) {
+            showAlert('edit-classroom-alert', e.message || 'Ошибка обновления', 'error');
+        }
+    });
+
+    loadInitialData();
+}
--- a/frontend/admin/js/views/edu-forms.js
+++ b/frontend/admin/js/views/edu-forms.js
@@ -0,0 +1,71 @@
+import { api } from '../api.js';
+import { escapeHtml, showAlert, hideAlert } from '../utils.js';
+
+export let allEducationForms = [];
+
+export async function fetchEducationForms() {
+    try {
+        allEducationForms = await api.get('/api/education-forms');
+        return allEducationForms;
+    } catch (e) {
+        console.error("Failed to fetch education forms", e);
+        return [];
+    }
+}
+
+export async function initEduForms() {
+    const efTbody = document.getElementById('ef-tbody');
+    const createEfForm = document.getElementById('create-ef-form');
+
+    async function loadEF() {
+        try {
+            const forms = await fetchEducationForms();
+            renderEfTable(forms);
+        } catch (e) {
+            efTbody.innerHTML = '<tr><td colspan="3" class="loading-row">Ошибка загрузки</td></tr>';
+        }
+    }
+
+    function renderEfTable(forms) {
+        if (!forms || !forms.length) {
+            efTbody.innerHTML = '<tr><td colspan="3" class="loading-row">Нет форм обучения</td></tr>';
+            return;
+        }
+        efTbody.innerHTML = forms.map(ef => `
+      <tr>
+        <td>${ef.id}</td>
+        <td>${escapeHtml(ef.name)}</td>
+        <td><button class="btn-delete" data-id="${ef.id}">Удалить</button></td>
+      </tr>`).join('');
+    }
+
+    createEfForm.addEventListener('submit', async (e) => {
+        e.preventDefault();
+        hideAlert('create-ef-alert');
+        const name = document.getElementById('new-ef-name').value.trim();
+        if (!name) { showAlert('create-ef-alert', 'Введите название', 'error'); return; }
+
+        try {
+            const data = await api.post('/api/education-forms', { name });
+            showAlert('create-ef-alert', `Форма "${escapeHtml(data.name)}" создана`, 'success');
+            createEfForm.reset();
+            loadEF();
+        } catch (e) {
+            showAlert('create-ef-alert', e.message || 'Ошибка создания', 'error');
+        }
+    });
+
+    efTbody.addEventListener('click', async (e) => {
+        const btn = e.target.closest('.btn-delete');
+        if (!btn) return;
+        if (!confirm('Удалить форму обучения?')) return;
+        try {
+            await api.delete('/api/education-forms/' + btn.dataset.id);
+            loadEF();
+        } catch (e) {
+            alert(e.message || 'Ошибка удаления');
+        }
+    });
+
+    loadEF();
+}
--- a/frontend/admin/js/views/equipments.js
+++ b/frontend/admin/js/views/equipments.js
@@ -0,0 +1,88 @@
+import { api } from '../api.js';
+import { escapeHtml, showAlert, hideAlert, updateSelectText } from '../utils.js';
+
+export let allEquipments = [];
+
+export async function fetchEquipments() {
+    try {
+        allEquipments = await api.get('/api/equipments');
+        return allEquipments;
+    } catch (e) {
+        console.error("Failed to fetch equipments", e);
+        return [];
+    }
+}
+
+export function renderEquipmentCheckboxes(equipments, containerId, textId, checkedIds = []) {
+    const container = document.getElementById(containerId);
+    if (!container) return;
+    if (!equipments.length) {
+        container.innerHTML = '<p class="text-muted"><small>Нет доступного оборудования</small></p>';
+        return;
+    }
+    container.innerHTML = equipments.map(eq => {
+        const isChecked = checkedIds.includes(eq.id) ? 'checked' : '';
+        return `
+        <label class="checkbox-item">
+            <input type="checkbox" value="${eq.id}" ${isChecked}> ${escapeHtml(eq.name)}
+        </label>
+    `}).join('');
+    updateSelectText(containerId, textId);
+}
+
+export async function initEquipments() {
+    const equipmentsTbody = document.getElementById('equipments-tbody');
+    const createEquipmentForm = document.getElementById('create-equipment-form');
+
+    async function loadEquipments() {
+        try {
+            const equipments = await fetchEquipments();
+            renderEquipments(equipments);
+        } catch (e) {
+            if (equipmentsTbody) equipmentsTbody.innerHTML = '<tr><td colspan="3" class="loading-row">Ошибка загрузки</td></tr>';
+        }
+    }
+
+    function renderEquipments(equipments) {
+        if (!equipments || !equipments.length) {
+            equipmentsTbody.innerHTML = '<tr><td colspan="3" class="loading-row">Нет оборудования</td></tr>';
+            return;
+        }
+        equipmentsTbody.innerHTML = equipments.map(eq => `
+      <tr>
+        <td>${eq.id}</td>
+        <td>${escapeHtml(eq.name)}</td>
+        <td><button class="btn-delete" data-id="${eq.id}">Удалить</button></td>
+      </tr>`).join('');
+    }
+
+    createEquipmentForm.addEventListener('submit', async (e) => {
+        e.preventDefault();
+        hideAlert('create-equipment-alert');
+        const name = document.getElementById('new-equipment-name').value.trim();
+        if (!name) { showAlert('create-equipment-alert', 'Введите название', 'error'); return; }
+
+        try {
+            const data = await api.post('/api/equipments', { name });
+            showAlert('create-equipment-alert', `Оборудование "${escapeHtml(data.name)}" добавлено`, 'success');
+            createEquipmentForm.reset();
+            loadEquipments();
+        } catch (e) {
+            showAlert('create-equipment-alert', e.message || 'Ошибка создания', 'error');
+        }
+    });
+
+    equipmentsTbody.addEventListener('click', async (e) => {
+        const btn = e.target.closest('.btn-delete');
+        if (!btn) return;
+        if (!confirm('Удалить оборудование?')) return;
+        try {
+            await api.delete('/api/equipments/' + btn.dataset.id);
+            loadEquipments();
+        } catch (e) {
+            alert(e.message || 'Ошибка удаления');
+        }
+    });
+
+    loadEquipments();
+}
--- a/frontend/admin/js/views/groups.js
+++ b/frontend/admin/js/views/groups.js
@@ -0,0 +1,108 @@
+import { api } from '../api.js';
+import { escapeHtml, showAlert, hideAlert } from '../utils.js';
+import { fetchEducationForms } from './edu-forms.js';
+
+export async function initGroups() {
+    const groupsTbody = document.getElementById('groups-tbody');
+    const createGroupForm = document.getElementById('create-group-form');
+    const newGroupEfSelect = document.getElementById('new-group-ef');
+    const filterEfSelect = document.getElementById('filter-ef');
+
+    let allGroups = [];
+    let educationForms = [];
+
+    async function loadInitialData() {
+        try {
+            educationForms = await fetchEducationForms();
+            populateEfSelects(educationForms);
+            await loadGroups();
+        } catch (e) {
+            groupsTbody.innerHTML = '<tr><td colspan="4" class="loading-row">Ошибка загрузки данных</td></tr>';
+        }
+    }
+
+    async function loadGroups() {
+        try {
+            allGroups = await api.get('/api/groups');
+            applyGroupFilter();
+        } catch (e) {
+            groupsTbody.innerHTML = '<tr><td colspan="4" class="loading-row">Ошибка загрузки</td></tr>';
+        }
+    }
+
+    function applyGroupFilter() {
+        const filterId = filterEfSelect.value;
+        const filtered = filterId
+            ? allGroups.filter(g => g.educationFormId == filterId)
+            : allGroups;
+        renderGroups(filtered);
+    }
+
+    filterEfSelect.addEventListener('change', applyGroupFilter);
+
+    function populateEfSelects(forms) {
+        // Group creation select
+        const currentVal = newGroupEfSelect.value;
+        newGroupEfSelect.innerHTML = forms.map(ef =>
+            `<option value="${ef.id}">${escapeHtml(ef.name)}</option>`
+        ).join('');
+        if (currentVal && forms.find(f => f.id == currentVal)) {
+            newGroupEfSelect.value = currentVal;
+        }
+
+        // Filter select
+        const currentFilter = filterEfSelect.value;
+        filterEfSelect.innerHTML = '<option value="">Все формы</option>' +
+            forms.map(ef =>
+                `<option value="${ef.id}">${escapeHtml(ef.name)}</option>`
+            ).join('');
+        if (currentFilter) filterEfSelect.value = currentFilter;
+    }
+
+    function renderGroups(groups) {
+        if (!groups || !groups.length) {
+            groupsTbody.innerHTML = '<tr><td colspan="4" class="loading-row">Нет групп</td></tr>';
+            return;
+        }
+        groupsTbody.innerHTML = groups.map(g => `
+      <tr>
+        <td>${g.id}</td>
+        <td>${escapeHtml(g.name)}</td>
+        <td><span class="badge badge-ef">${escapeHtml(g.educationFormName)}</span></td>
+        <td><button class="btn-delete" data-id="${g.id}">Удалить</button></td>
+      </tr>`).join('');
+    }
+
+    createGroupForm.addEventListener('submit', async (e) => {
+        e.preventDefault();
+        hideAlert('create-group-alert');
+        const name = document.getElementById('new-group-name').value.trim();
+        const educationFormId = newGroupEfSelect.value;
+
+        if (!name) { showAlert('create-group-alert', 'Введите название группы', 'error'); return; }
+        if (!educationFormId) { showAlert('create-group-alert', 'Выберите форму обучения', 'error'); return; }
+
+        try {
+            const data = await api.post('/api/groups', { name, educationFormId: Number(educationFormId) });
+            showAlert('create-group-alert', `Группа "${escapeHtml(data.name)}" создана`, 'success');
+            createGroupForm.reset();
+            loadGroups();
+        } catch (e) {
+            showAlert('create-group-alert', e.message || 'Ошибка создания', 'error');
+        }
+    });
+
+    groupsTbody.addEventListener('click', async (e) => {
+        const btn = e.target.closest('.btn-delete');
+        if (!btn) return;
+        if (!confirm('Удалить группу?')) return;
+        try {
+            await api.delete('/api/groups/' + btn.dataset.id);
+            loadGroups();
+        } catch (e) {
+            alert(e.message || 'Ошибка удаления');
+        }
+    });
+
+    loadInitialData();
+}
--- a/frontend/admin/js/views/subjects.js
+++ b/frontend/admin/js/views/subjects.js
@@ -0,0 +1,153 @@
+import { api } from '../api.js';
+import { escapeHtml, showAlert, hideAlert } from '../utils.js';
+
+export async function initSubjects() {
+    const subjectsTbody = document.getElementById('subjects-tbody');
+    const createSubjectForm = document.getElementById('create-subject-form');
+
+    const assignTeacherForm = document.getElementById('assign-teacher-form');
+    const assignTeacherSelect = document.getElementById('assign-teacher-select');
+    const assignSubjectSelect = document.getElementById('assign-subject-select');
+    const teacherSubjectsTbody = document.getElementById('teacher-subjects-tbody');
+
+    let allSubjects = [];
+    let allTeachers = [];
+
+    async function loadInitialData() {
+        await Promise.all([loadSubjects(), loadTeachers()]);
+        await loadTeacherSubjects();
+    }
+
+    async function loadSubjects() {
+        try {
+            allSubjects = await api.get('/api/subjects');
+            renderSubjects(allSubjects);
+            populateSubjectSelect(allSubjects);
+        } catch (e) {
+            if (subjectsTbody) subjectsTbody.innerHTML = '<tr><td colspan="3" class="loading-row">Ошибка загрузки</td></tr>';
+        }
+    }
+
+    function renderSubjects(subjects) {
+        if (!subjects || !subjects.length) {
+            subjectsTbody.innerHTML = '<tr><td colspan="3" class="loading-row">Нет дисциплин</td></tr>';
+            return;
+        }
+        subjectsTbody.innerHTML = subjects.map(s => `
+      <tr>
+        <td>${s.id}</td>
+        <td>${escapeHtml(s.name)}</td>
+        <td><button class="btn-delete" data-id="${s.id}">Удалить</button></td>
+      </tr>`).join('');
+    }
+
+    function populateSubjectSelect(subjects) {
+        if (!assignSubjectSelect) return;
+        const currentVal = assignSubjectSelect.value;
+        assignSubjectSelect.innerHTML = '<option value="">Выберите дисциплину</option>' +
+            subjects.map(s => `<option value="${s.id}">${escapeHtml(s.name)}</option>`).join('');
+        if (currentVal && subjects.find(s => s.id == currentVal)) {
+            assignSubjectSelect.value = currentVal;
+        }
+    }
+
+    async function loadTeachers() {
+        try {
+            allTeachers = await api.get('/api/users/teachers');
+            populateTeacherSelect(allTeachers);
+        } catch (e) {
+            if (assignTeacherSelect) assignTeacherSelect.innerHTML = '<option value="">Ошибка загрузки</option>';
+        }
+    }
+
+    function populateTeacherSelect(teachers) {
+        if (!assignTeacherSelect) return;
+        const currentVal = assignTeacherSelect.value;
+        if (!teachers || !teachers.length) {
+            assignTeacherSelect.innerHTML = '<option value="">Нет преподавателей</option>';
+            return;
+        }
+        assignTeacherSelect.innerHTML = '<option value="">Выберите преподавателя</option>' +
+            teachers.map(t => `<option value="${t.id}">${escapeHtml(t.username)}</option>`).join('');
+        if (currentVal && teachers.find(t => t.id == currentVal)) {
+            assignTeacherSelect.value = currentVal;
+        }
+    }
+
+    async function loadTeacherSubjects() {
+        try {
+            const tsData = await api.get('/api/teacher-subjects');
+            renderTeacherSubjects(tsData);
+        } catch (e) {
+            if (teacherSubjectsTbody) teacherSubjectsTbody.innerHTML = '<tr><td colspan="3" class="loading-row">Ошибка загрузки</td></tr>';
+        }
+    }
+
+    function renderTeacherSubjects(tsArray) {
+        if (!tsArray || !tsArray.length) {
+            teacherSubjectsTbody.innerHTML = '<tr><td colspan="3" class="loading-row">Нет привязок</td></tr>';
+            return;
+        }
+        teacherSubjectsTbody.innerHTML = tsArray.map(ts => `
+      <tr>
+        <td>${escapeHtml(ts.username)}</td>
+        <td>${escapeHtml(ts.subjectName)}</td>
+        <td><button class="btn-delete" data-user-id="${ts.userId}" data-subject-id="${ts.subjectId}">Удалить</button></td>
+      </tr>`).join('');
+    }
+
+    createSubjectForm.addEventListener('submit', async (e) => {
+        e.preventDefault();
+        hideAlert('create-subject-alert');
+        const name = document.getElementById('new-subject-name').value.trim();
+        if (!name) { showAlert('create-subject-alert', 'Введите название', 'error'); return; }
+
+        try {
+            const data = await api.post('/api/subjects', { name });
+            showAlert('create-subject-alert', `Дисциплина "${escapeHtml(data.name)}" добавлена`, 'success');
+            createSubjectForm.reset();
+            loadSubjects();
+        } catch (e) { showAlert('create-subject-alert', e.message || 'Ошибка создания', 'error'); }
+    });
+
+    subjectsTbody.addEventListener('click', async (e) => {
+        const btn = e.target.closest('.btn-delete');
+        if (!btn) return;
+        if (!confirm('Удалить дисциплину?')) return;
+        try {
+            await api.delete('/api/subjects/' + btn.dataset.id);
+            loadSubjects();
+            loadTeacherSubjects(); // May have deleted a subject that was assigned
+        } catch (e) { alert(e.message || 'Ошибка удаления'); }
+    });
+
+    assignTeacherForm.addEventListener('submit', async (e) => {
+        e.preventDefault();
+        hideAlert('assign-teacher-alert');
+        const userId = assignTeacherSelect.value;
+        const subjectId = assignSubjectSelect.value;
+        if (!userId) { showAlert('assign-teacher-alert', 'Выберите преподавателя', 'error'); return; }
+        if (!subjectId) { showAlert('assign-teacher-alert', 'Выберите дисциплину', 'error'); return; }
+
+        try {
+            await api.post('/api/teacher-subjects', { userId: Number(userId), subjectId: Number(subjectId) });
+            showAlert('assign-teacher-alert', 'Привязка создана', 'success');
+            loadTeacherSubjects();
+        } catch (e) { showAlert('assign-teacher-alert', e.message || 'Ошибка привязки', 'error'); }
+    });
+
+    teacherSubjectsTbody.addEventListener('click', async (e) => {
+        const btn = e.target.closest('.btn-delete');
+        if (!btn) return;
+        if (!confirm('Удалить привязку?')) return;
+        try {
+            await api.delete('/api/teacher-subjects', {
+                userId: Number(btn.dataset.userId),
+                subjectId: Number(btn.dataset.subjectId)
+            });
+            loadTeacherSubjects();
+        } catch (e) { alert(e.message || 'Ошибка удаления'); }
+    });
+
+    loadInitialData();
+}
--- a/frontend/admin/js/views/users.js
+++ b/frontend/admin/js/views/users.js
@@ -0,0 +1,67 @@
+import { api } from '../api.js';
+import { escapeHtml, showAlert, hideAlert } from '../utils.js';
+
+const ROLE_LABELS = { ADMIN: 'Администратор', TEACHER: 'Преподаватель', STUDENT: 'Студент' };
+const ROLE_BADGE = { ADMIN: 'badge-admin', TEACHER: 'badge-teacher', STUDENT: 'badge-student' };
+
+export async function initUsers() {
+    const usersTbody = document.getElementById('users-tbody');
+    const createForm = document.getElementById('create-form');
+    const createAlert = document.getElementById('create-alert');
+
+    async function loadUsers() {
+        try {
+            const users = await api.get('/api/users');
+            renderUsers(users);
+        } catch (e) {
+            usersTbody.innerHTML = '<tr><td colspan="4" class="loading-row">Ошибка загрузки: ' + escapeHtml(e.message) + '</td></tr>';
+        }
+    }
+
+    function renderUsers(users) {
+        if (!users || !users.length) {
+            usersTbody.innerHTML = '<tr><td colspan="4" class="loading-row">Нет пользователей</td></tr>';
+            return;
+        }
+        usersTbody.innerHTML = users.map(u => `
+      <tr>
+        <td>${u.id}</td>
+        <td>${escapeHtml(u.username)}</td>
+        <td><span class="badge ${ROLE_BADGE[u.role] || ''}">${ROLE_LABELS[u.role] || escapeHtml(u.role)}</span></td>
+        <td><button class="btn-delete" data-id="${u.id}">Удалить</button></td>
+      </tr>`).join('');
+    }
+
+    createForm.addEventListener('submit', async (e) => {
+        e.preventDefault();
+        hideAlert('create-alert');
+        const username = document.getElementById('new-username').value.trim();
+        const password = document.getElementById('new-password').value;
+        const role = document.getElementById('new-role').value;
+        if (!username || !password) { showAlert('create-alert', 'Заполните все поля', 'error'); return; }
+
+        try {
+            const data = await api.post('/api/users', { username, password, role });
+            showAlert('create-alert', `Пользователь "${escapeHtml(data.username)}" создан`, 'success');
+            createForm.reset();
+            loadUsers();
+        } catch (e) {
+            showAlert('create-alert', e.message || 'Ошибка соединения', 'error');
+        }
+    });
+
+    usersTbody.addEventListener('click', async (e) => {
+        const btn = e.target.closest('.btn-delete');
+        if (!btn) return;
+        if (!confirm('Удалить пользователя?')) return;
+        try {
+            await api.delete('/api/users/' + btn.dataset.id);
+            loadUsers();
+        } catch (e) {
+            alert(e.message || 'Ошибка удаления');
+        }
+    });
+
+    // Initial load
+    loadUsers();
+}
--- a/frontend/admin/views/classrooms.html
+++ b/frontend/admin/views/classrooms.html
@@ -0,0 +1,109 @@
+<!-- ===== Classrooms Tab ===== -->
+<div class="card create-card">
+    <h2>Новая аудитория</h2>
+    <form id="create-classroom-form">
+        <div class="form-row">
+            <div class="form-group">
+                <label for="new-classroom-name">Номер / Название</label>
+                <input type="text" id="new-classroom-name" placeholder="101 Ленинская" required>
+            </div>
+            <div class="form-group">
+                <label for="new-classroom-capacity">Вместимость (чел.)</label>
+                <input type="number" id="new-classroom-capacity" placeholder="30" min="1" required>
+            </div>
+        </div>
+        <div class="form-row" style="margin-top: 1rem;">
+            <div class="form-group" style="flex: 2;">
+                <label>Оборудование</label>
+                <div class="custom-multi-select">
+                    <div class="select-box" id="equipment-select-box">
+                        <span class="select-text" id="equipment-select-text">Выберите оборудование...</span>
+                        <svg class="dropdown-icon" width="12" height="8" viewBox="0 0 12 8" fill="none"
+                            xmlns="http://www.w3.org/2000/svg">
+                            <path d="M1 1.5L6 6.5L11 1.5" stroke="#9ca3af" stroke-width="2" stroke-linecap="round"
+                                stroke-linejoin="round" />
+                        </svg>
+                    </div>
+                    <div class="dropdown-menu" id="equipment-dropdown-menu">
+                        <div id="equipment-checkboxes" class="checkbox-group-vertical">
+                            <!-- Подгружается через JS -->
+                            <p class="text-muted"><small>Загрузка...</small></p>
+                        </div>
+                    </div>
+                </div>
+            </div>
+            <div class="form-group" style="display: flex; align-items: flex-end;">
+                <button type="submit" class="btn-primary">Добавить</button>
+            </div>
+        </div>
+        <div class="form-alert" id="create-classroom-alert" role="alert"></div>
+    </form>
+</div>
+
+<div class="card">
+    <h2>Список аудиторий</h2>
+    <div class="table-wrap">
+        <table id="classrooms-table">
+            <thead>
+                <tr>
+                    <th>ID</th>
+                    <th>Название</th>
+                    <th>Вместимость</th>
+                    <th>Оборудование</th>
+                    <th>Статус</th>
+                    <th style="text-align: right;">Действия</th>
+                </tr>
+            </thead>
+            <tbody id="classrooms-tbody">
+                <tr>
+                    <td colspan="6" class="loading-row">Загрузка...</td>
+                </tr>
+            </tbody>
+        </table>
+    </div>
+</div>
+
+<!-- Edit Classroom Modal -->
+<div class="modal-overlay" id="modal-edit-classroom">
+    <div class="modal-content card">
+        <h2>Редактировать аудиторию</h2>
+        <button class="modal-close" id="modal-edit-classroom-close">&times;</button>
+        <form id="edit-classroom-form">
+            <input type="hidden" id="edit-classroom-id">
+            <div class="form-row" style="margin-top: 1rem;">
+                <div class="form-group">
+                    <label for="edit-classroom-name">Номер / Название</label>
+                    <input type="text" id="edit-classroom-name" required>
+                </div>
+                <div class="form-group">
+                    <label for="edit-classroom-capacity">Вместимость (чел.)</label>
+                    <input type="number" id="edit-classroom-capacity" min="1" required>
+                </div>
+            </div>
+            <div class="form-row" style="margin-top: 1rem;">
+                <div class="form-group" style="flex: 2;">
+                    <label>Оборудование</label>
+                    <div class="custom-multi-select">
+                        <div class="select-box" id="edit-equipment-select-box">
+                            <span class="select-text" id="edit-equipment-select-text">Выберите оборудование...</span>
+                            <svg class="dropdown-icon" width="12" height="8" viewBox="0 0 12 8" fill="none"
+                                xmlns="http://www.w3.org/2000/svg">
+                                <path d="M1 1.5L6 6.5L11 1.5" stroke="#9ca3af" stroke-width="2" stroke-linecap="round"
+                                    stroke-linejoin="round" />
+                            </svg>
+                        </div>
+                        <div class="dropdown-menu" id="edit-equipment-dropdown-menu">
+                            <div id="edit-equipment-checkboxes" class="checkbox-group-vertical">
+                                <!-- Подгружается через JS -->
+                            </div>
+                        </div>
+                    </div>
+                </div>
+                <div class="form-group" style="display: flex; align-items: flex-end;">
+                    <button type="submit" class="btn-primary" style="width: 100%;">Сохранить</button>
+                </div>
+            </div>
+            <div class="form-alert" id="edit-classroom-alert" role="alert"></div>
+        </form>
+    </div>
+</div>
--- a/frontend/admin/views/edu-forms.html
+++ b/frontend/admin/views/edu-forms.html
@@ -0,0 +1,34 @@
+<!-- ===== Education Forms Tab ===== -->
+<div class="card create-card">
+    <h2>Новая форма обучения</h2>
+    <form id="create-ef-form">
+        <div class="form-row">
+            <div class="form-group">
+                <label for="new-ef-name">Название</label>
+                <input type="text" id="new-ef-name" placeholder="Бакалавриат" required>
+            </div>
+            <button type="submit" class="btn-primary">Создать</button>
+        </div>
+        <div class="form-alert" id="create-ef-alert" role="alert"></div>
+    </form>
+</div>
+
+<div class="card">
+    <h2>Все формы обучения</h2>
+    <div class="table-wrap">
+        <table id="ef-table">
+            <thead>
+                <tr>
+                    <th>ID</th>
+                    <th>Название</th>
+                    <th>Действия</th>
+                </tr>
+            </thead>
+            <tbody id="ef-tbody">
+                <tr>
+                    <td colspan="3" class="loading-row">Загрузка...</td>
+                </tr>
+            </tbody>
+        </table>
+    </div>
+</div>
--- a/frontend/admin/views/equipments.html
+++ b/frontend/admin/views/equipments.html
@@ -0,0 +1,34 @@
+<!-- ===== Equipments Tab ===== -->
+<div class="card create-card">
+    <h2>Новое оборудование</h2>
+    <form id="create-equipment-form">
+        <div class="form-row">
+            <div class="form-group">
+                <label for="new-equipment-name">Название оборудования</label>
+                <input type="text" id="new-equipment-name" placeholder="Проектор" required>
+            </div>
+            <button type="submit" class="btn-primary">Добавить</button>
+        </div>
+        <div class="form-alert" id="create-equipment-alert" role="alert"></div>
+    </form>
+</div>
+
+<div class="card">
+    <h2>Справочник оборудования</h2>
+    <div class="table-wrap">
+        <table id="equipments-table">
+            <thead>
+                <tr>
+                    <th>ID</th>
+                    <th>Название</th>
+                    <th>Действия</th>
+                </tr>
+            </thead>
+            <tbody id="equipments-tbody">
+                <tr>
+                    <td colspan="3" class="loading-row">Загрузка...</td>
+                </tr>
+            </tbody>
+        </table>
+    </div>
+</div>
--- a/frontend/admin/views/groups.html
+++ b/frontend/admin/views/groups.html
@@ -0,0 +1,49 @@
+<!-- ===== Groups Tab ===== -->
+<div class="card create-card">
+    <h2>Новая группа</h2>
+    <form id="create-group-form">
+        <div class="form-row">
+            <div class="form-group">
+                <label for="new-group-name">Название группы</label>
+                <input type="text" id="new-group-name" placeholder="ИВТ-21-1" required>
+            </div>
+            <div class="form-group">
+                <label for="new-group-ef">Форма обучения</label>
+                <select id="new-group-ef">
+                    <option value="">Загрузка...</option>
+                </select>
+            </div>
+            <button type="submit" class="btn-primary">Создать</button>
+        </div>
+        <div class="form-alert" id="create-group-alert" role="alert"></div>
+    </form>
+</div>
+
+<div class="card">
+    <div class="card-header-row">
+        <h2>Все группы</h2>
+        <div class="filter-row">
+            <label for="filter-ef">Фильтр:</label>
+            <select id="filter-ef">
+                <option value="">Все формы</option>
+            </select>
+        </div>
+    </div>
+    <div class="table-wrap">
+        <table id="groups-table">
+            <thead>
+                <tr>
+                    <th>ID</th>
+                    <th>Название</th>
+                    <th>Форма обучения</th>
+                    <th>Действия</th>
+                </tr>
+            </thead>
+            <tbody id="groups-tbody">
+                <tr>
+                    <td colspan="4" class="loading-row">Загрузка...</td>
+                </tr>
+            </tbody>
+        </table>
+    </div>
+</div>
--- a/frontend/admin/views/subjects.html
+++ b/frontend/admin/views/subjects.html
@@ -0,0 +1,76 @@
+<!-- ===== Subjects Tab ===== -->
+<div class="card create-card">
+    <h2>Новая дисциплина</h2>
+    <form id="create-subject-form">
+        <div class="form-row">
+            <div class="form-group">
+                <label for="new-subject-name">Название дисциплины</label>
+                <input type="text" id="new-subject-name" placeholder="Высшая математика" required>
+            </div>
+            <button type="submit" class="btn-primary">Добавить</button>
+        </div>
+        <div class="form-alert" id="create-subject-alert" role="alert"></div>
+    </form>
+</div>
+
+<div class="card create-card">
+    <h2>Привязка преподавателя к дисциплине</h2>
+    <form id="assign-teacher-form">
+        <div class="form-row">
+            <div class="form-group">
+                <label for="assign-teacher-select">Преподаватель</label>
+                <select id="assign-teacher-select">
+                    <option value="">Загрузка...</option>
+                </select>
+            </div>
+            <div class="form-group">
+                <label for="assign-subject-select">Дисциплина</label>
+                <select id="assign-subject-select">
+                    <option value="">Загрузка...</option>
+                </select>
+            </div>
+            <button type="submit" class="btn-primary">Привязать</button>
+        </div>
+        <div class="form-alert" id="assign-teacher-alert" role="alert"></div>
+    </form>
+</div>
+
+<div class="card">
+    <h2>Все дисциплины</h2>
+    <div class="table-wrap">
+        <table id="subjects-table">
+            <thead>
+                <tr>
+                    <th>ID</th>
+                    <th>Название</th>
+                    <th>Действия</th>
+                </tr>
+            </thead>
+            <tbody id="subjects-tbody">
+                <tr>
+                    <td colspan="3" class="loading-row">Загрузка...</td>
+                </tr>
+            </tbody>
+        </table>
+    </div>
+</div>
+
+<div class="card">
+    <h2>Привязки преподавателей</h2>
+    <div class="table-wrap">
+        <table id="teacher-subjects-table">
+            <thead>
+                <tr>
+                    <th>Преподаватель</th>
+                    <th>Дисциплина</th>
+                    <th>Действия</th>
+                </tr>
+            </thead>
+            <tbody id="teacher-subjects-tbody">
+                <tr>
+                    <td colspan="3" class="loading-row">Загрузка...</td>
+                </tr>
+            </tbody>
+        </table>
+    </div>
+</div>
--- a/frontend/admin/views/users.html
+++ b/frontend/admin/views/users.html
@@ -0,0 +1,47 @@
+<!-- ===== Users Tab ===== -->
+<div class="card create-card">
+    <h2>Новый пользователь</h2>
+    <form id="create-form">
+        <div class="form-row">
+            <div class="form-group">
+                <label for="new-username">Имя пользователя</label>
+                <input type="text" id="new-username" placeholder="username" required>
+            </div>
+            <div class="form-group">
+                <label for="new-password">Пароль</label>
+                <input type="text" id="new-password" placeholder="password" required>
+            </div>
+            <div class="form-group">
+                <label for="new-role">Роль</label>
+                <select id="new-role">
+                    <option value="STUDENT">Студент</option>
+                    <option value="TEACHER">Преподаватель</option>
+                    <option value="ADMIN">Администратор</option>
+                </select>
+            </div>
+            <button type="submit" class="btn-primary">Создать</button>
+        </div>
+        <div class="form-alert" id="create-alert" role="alert"></div>
+    </form>
+</div>
+
+<div class="card">
+    <h2>Все пользователи</h2>
+    <div class="table-wrap">
+        <table id="users-table">
+            <thead>
+                <tr>
+                    <th>ID</th>
+                    <th>Имя пользователя</th>
+                    <th>Роль</th>
+                    <th>Действия</th>
+                </tr>
+            </thead>
+            <tbody id="users-tbody">
+                <tr>
+                    <td colspan="4" class="loading-row">Загрузка...</td>
+                </tr>
+            </tbody>
+        </table>
+    </div>
+</div>
Author	SHA1	Message	Date
Zuev	9d06c69e2b	chore: update .gitignore	2026-02-26 01:29:13 +03:00
Zuev	684273de50	Fix CSS appearance warning and format JS	2026-02-26 00:39:48 +03:00
Zuev	772b110762	Refactor admin frontend into modular SPA	2026-02-26 00:27:10 +03:00
Zuev	18f47c6d3d	fix: adapt init.sql lessons table to match Create-Lesson branch entity	2026-02-25 23:27:17 +03:00
ProstoDenya01	007b4fb619	Поправил id дисциплины	2026-02-25 23:13:49 +03:00