.version-studio {
    --version-ink: #12253a;
    --version-paper: #f5f0e4;
    --version-copper: #d46b3c;
    --version-mint: #52c7a3;
    display: grid;
    gap: 1rem;
}

.version-hero {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1.55fr) minmax(260px, .55fr);
    gap: clamp(1.5rem, 5vw, 5rem);
    overflow: hidden;
    padding: clamp(1.6rem, 4vw, 3.5rem);
    color: #f8f4eb;
    background:
        radial-gradient(circle at 82% 22%, rgba(237, 129, 75, .28), transparent 27%),
        repeating-linear-gradient(118deg, rgba(255, 255, 255, .025) 0 1px, transparent 1px 19px),
        linear-gradient(135deg, #102438, #19364b 54%, #233f45);
    border: 1px solid rgba(240, 173, 119, .25);
    border-radius: var(--radius-lg, 20px);
    box-shadow: 0 26px 65px rgba(5, 20, 32, .27);
}

.version-hero::after {
    content: '01 / LIVE';
    position: absolute;
    right: -1.5rem;
    bottom: 1.2rem;
    color: rgba(255, 255, 255, .055);
    font-family: Georgia, serif;
    font-size: clamp(4rem, 10vw, 9rem);
    letter-spacing: -.08em;
    pointer-events: none;
}

.version-hero > * { position: relative; z-index: 1; }

.version-eyebrow {
    display: block;
    margin-bottom: .55rem;
    color: var(--version-copper);
    font-size: .68rem;
    font-weight: 800;
    letter-spacing: .14em;
    text-transform: uppercase;
}

.version-hero .version-eyebrow { color: #f3a170; }

.version-hero h2 {
    max-width: 760px;
    margin: 0;
    font-family: Georgia, 'Times New Roman', serif;
    font-size: clamp(2rem, 4.5vw, 4.5rem);
    font-weight: 500;
    letter-spacing: -.05em;
    line-height: .98;
}

.version-hero p {
    max-width: 700px;
    margin: 1.25rem 0 0;
    color: rgba(242, 247, 248, .72);
    line-height: 1.7;
}

.version-hero-controls {
    align-self: end;
    display: grid;
    gap: .65rem;
    padding: 1rem;
    background: rgba(3, 17, 28, .42);
    border: 1px solid rgba(255, 255, 255, .12);
    border-radius: var(--radius-md);
    backdrop-filter: blur(14px);
}

.version-hero-controls label {
    display: block;
    margin-bottom: .35rem;
    color: rgba(255, 255, 255, .62);
    font-size: .7rem;
    font-weight: 800;
    letter-spacing: .09em;
    text-transform: uppercase;
}

.version-hero-controls select {
    width: 100%;
    min-height: 42px;
    padding: .55rem .7rem;
    color: #f8fafc;
    background: rgba(255, 255, 255, .08);
    border: 1px solid rgba(255, 255, 255, .15);
    border-radius: var(--radius-sm);
}

.version-hero-controls option { color: #152536; background: #f7f4ed; }

.version-hero-period-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: .65rem;
}

.version-status {
    min-height: 2.8rem;
    padding: .8rem 1rem;
    color: var(--text-secondary);
    background: var(--bg-card);
    border: 1px solid var(--bg-card-border);
    border-left: 4px solid var(--version-copper);
    border-radius: var(--radius-sm);
}

.version-status[data-tone="success"] { border-left-color: var(--success); }
.version-status[data-tone="error"] { border-left-color: var(--error); }
.version-status[data-tone="loading"] { border-left-color: var(--warning); }

.version-constructor-bar {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(280px, .55fr);
    gap: 1rem;
    align-items: center;
    margin-bottom: 1rem;
    padding: 1.15rem 1.3rem;
    background: linear-gradient(105deg, color-mix(in srgb, var(--version-mint) 9%, var(--bg-card)), var(--bg-card));
    border: 1px solid color-mix(in srgb, var(--version-mint) 34%, var(--bg-card-border));
    border-radius: var(--radius-lg, 20px);
    transition: background .2s ease, border-color .2s ease;
}
.version-constructor-bar[data-status="DRAFT"] {
    background: linear-gradient(105deg, color-mix(in srgb, var(--version-copper) 10%, var(--bg-card)), var(--bg-card));
    border-color: color-mix(in srgb, var(--version-copper) 35%, var(--bg-card-border));
}
.version-constructor-bar h2 { margin: 0; color: var(--text-primary); font-family: Georgia, serif; font-size: 1.55rem; }
.version-constructor-bar p { margin: .35rem 0 0; color: var(--text-secondary); font-size: .82rem; }
.version-constructor-controls { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .65rem; align-items: end; }
.version-constructor-field { min-width: 0; }
.version-constructor-field-wide { grid-column: 1 / -1; }
.version-constructor-controls label { display: block; margin-bottom: .35rem; color: var(--text-secondary); font-size: .7rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.version-constructor-controls select { min-height: 38px; padding: .45rem .65rem; color: var(--text-primary); background: var(--bg-input); border: 1px solid var(--bg-card-border); border-radius: var(--radius-sm); }
.version-constructor-field select { width: 100%; }
.version-constructor-actions { grid-column: 1 / -1; display: flex; justify-content: flex-end; gap: .55rem; }

.version-current {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 1.25rem;
    align-items: center;
    min-height: 120px;
    padding: 1.4rem;
    background: linear-gradient(100deg, color-mix(in srgb, var(--version-mint) 9%, var(--bg-card)), var(--bg-card));
    border: 1px solid color-mix(in srgb, var(--version-mint) 35%, var(--bg-card-border));
    border-radius: var(--radius-lg, 20px);
}

.version-live-mark {
    display: grid;
    width: 68px;
    aspect-ratio: 1;
    place-content: center;
    color: #eafff8;
    background: #16856a;
    border-radius: 50%;
    font-size: .7rem;
    font-weight: 900;
    letter-spacing: .12em;
    box-shadow: 0 0 0 7px color-mix(in srgb, var(--version-mint) 15%, transparent);
}

.version-current h3,
.version-section-head h3,
.version-card h4,
.version-diff-panel h3 { margin: 0; color: var(--text-primary); }

.version-current p,
.version-card p,
.version-empty p { margin: .45rem 0 0; color: var(--text-secondary); line-height: 1.5; }

.version-stats { display: flex; flex-wrap: wrap; gap: .45rem; margin-top: .7rem; }
.version-stats span,
.version-status-chip {
    padding: .28rem .55rem;
    color: var(--text-secondary);
    background: var(--bg-input);
    border: 1px solid var(--bg-card-border);
    border-radius: 999px;
    font-size: .72rem;
}

.version-workbench {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(330px, .85fr);
    gap: 1rem;
    align-items: start;
}

.version-drafts-panel,
.version-diff-panel,
.version-archive-panel,
.version-history-panel {
    padding: 1.25rem;
    background: var(--bg-card);
    border: 1px solid var(--bg-card-border);
    border-radius: var(--radius-lg, 20px);
}

.version-diff-panel { position: sticky; top: 1rem; min-height: 310px; }

.version-section-head {
    display: flex;
    justify-content: space-between;
    align-items: end;
    gap: 1rem;
    margin-bottom: 1rem;
}

.version-section-head > span { color: var(--version-copper); font-family: Georgia, serif; font-size: 2rem; }
.version-draft-list { display: grid; gap: .8rem; }

.version-card {
    position: relative;
    overflow: hidden;
    padding: 1rem;
    background: color-mix(in srgb, var(--version-paper) 4%, var(--bg-input));
    border: 1px solid var(--bg-card-border);
    border-radius: var(--radius-md);
}

.version-card::before {
    content: attr(data-number);
    position: absolute;
    right: .5rem;
    top: -.8rem;
    color: color-mix(in srgb, var(--version-copper) 12%, transparent);
    font-family: Georgia, serif;
    font-size: 5rem;
}

.version-card > * { position: relative; }
.version-card-top { display: flex; justify-content: space-between; gap: 1rem; }
.version-card-actions { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1rem; }
.version-card small { display: block; margin-top: .45rem; color: var(--text-placeholder); }

.version-empty {
    display: grid;
    min-height: 270px;
    place-content: center;
    text-align: center;
}
.version-empty > span { color: var(--version-copper); font-family: Georgia, serif; font-size: 4rem; }
.version-empty p { max-width: 360px; }

.version-diff-score {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: .55rem;
    margin: 1rem 0;
}
.version-diff-score div { padding: .75rem; background: var(--bg-input); border-radius: var(--radius-sm); text-align: center; }
.version-diff-score strong { display: block; color: var(--text-primary); font-family: Georgia, serif; font-size: 1.75rem; }
.version-diff-score span { color: var(--text-secondary); font-size: .68rem; text-transform: uppercase; }

.version-change-list { display: grid; gap: .55rem; max-height: 390px; overflow: auto; }
.version-change { padding: .75rem; border-left: 3px solid var(--version-copper); background: var(--bg-input); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }
.version-change[data-type="ADDED"] { border-left-color: var(--success); }
.version-change[data-type="REMOVED"] { border-left-color: var(--error); }
.version-change strong { color: var(--text-primary); }
.version-change span { display: block; margin-top: .3rem; color: var(--text-secondary); font-size: .78rem; line-height: 1.45; }

.version-archive-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: .75rem; }
.version-history { display: grid; gap: 0; }
.version-history-row { display: grid; grid-template-columns: 120px 1fr auto; gap: 1rem; padding: .8rem 0; border-bottom: 1px solid var(--bg-card-border); }
.version-history-row:last-child { border-bottom: 0; }
.version-history-row time { color: var(--text-placeholder); font-size: .75rem; }
.version-history-row strong { color: var(--text-primary); }
.version-history-row p { margin: .25rem 0 0; color: var(--text-secondary); font-size: .8rem; }

.version-modal {
    position: fixed;
    inset: 0;
    z-index: 1200;
    display: grid;
    padding: 1rem;
    place-items: center;
    background: rgba(4, 13, 22, .75);
    backdrop-filter: blur(8px);
}
.version-modal[hidden] { display: none; }
.version-modal-card { position: relative; width: min(560px, 100%); padding: 1.6rem; background: var(--bg-primary); border: 1px solid var(--bg-card-border); border-radius: var(--radius-lg, 20px); box-shadow: 0 30px 80px rgba(0, 0, 0, .45); }
.version-modal-card h3 { margin: 0; color: var(--text-primary); font-family: Georgia, serif; font-size: 2rem; }
.version-modal-card > p { margin: .6rem 0 1rem; color: var(--text-secondary); line-height: 1.55; }
.version-modal-card form { display: grid; gap: .65rem; }
.version-modal-card label { color: var(--text-secondary); font-size: .75rem; font-weight: 700; }
.version-modal-card textarea,
.version-modal-card input { width: 100%; resize: vertical; padding: .8rem; color: var(--text-primary); background: var(--bg-input); border: 1px solid var(--bg-card-border); border-radius: var(--radius-sm); font: inherit; }
.version-modal-close { position: absolute; top: .7rem; right: .8rem; color: var(--text-secondary); background: transparent; border: 0; font-size: 1.6rem; cursor: pointer; }
.version-modal-actions { display: flex; justify-content: flex-end; gap: .6rem; margin-top: .4rem; }
.version-modal-summary { padding: .75rem; color: var(--text-secondary); background: var(--bg-input); border-radius: var(--radius-sm); font-size: .8rem; line-height: 1.5; }
.version-modal-summary[data-tone="error"] { color: var(--error); border: 1px solid color-mix(in srgb, var(--error) 40%, transparent); }

@media (max-width: 900px) {
    .version-hero, .version-workbench, .version-constructor-bar { grid-template-columns: 1fr; }
    .version-diff-panel { position: static; }
    .version-current { grid-template-columns: auto 1fr; }
    .version-current .version-card-actions { grid-column: 1 / -1; }
}

@media (max-width: 560px) {
    .version-current { grid-template-columns: 1fr; }
    .version-live-mark { width: 54px; }
    .version-diff-score { grid-template-columns: 1fr; }
    .version-history-row { grid-template-columns: 1fr; gap: .25rem; }
    .version-constructor-controls { grid-template-columns: 1fr; }
    .version-constructor-field-wide { grid-column: auto; }
    .version-constructor-actions { grid-column: auto; flex-direction: column; }
    .version-hero-period-grid { grid-template-columns: 1fr; }
}