/* Neuro-Art Studio — 3D Knowledge Graph Visualization */

/* ── Container ─────────────────────────────────────────────────────── */
/* Дефолт — светлый холст (бумага). Тёмные палитры (cyberpunk, matrix…)
   сами переустанавливают `.backgroundColor` через ForceGraph3D, поэтому
   при их выборе canvas уходит в чёрный через WebGL clear, а тулбар/кайма
   остаются нейтрально-светлыми. */
#neuro-art-view {
    display: none;
    flex-direction: column;
    height: 100%;
    background:
        radial-gradient(1200px 400px at 20% -10%, rgba(31, 61, 43, 0.10), transparent 70%),
        radial-gradient(900px 500px at 100% 120%, color-mix(in srgb, var(--info) 8%, transparent), transparent 70%),
        var(--white);
    border: 1px solid color-mix(in srgb, var(--dark) 8%, transparent);
    border-radius: 14px;
    overflow: hidden;
    position: relative;
}
/* Тонкая «аура» по периметру — subtle animated conic gradient,
   едва заметна, но создаёт ощущение «живого» инструмента. */
#neuro-art-view::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: inherit;
    padding: 1px;
    background: conic-gradient(from var(--neuro-aura-angle, 0deg),
        rgba(31, 61, 43, 0.35),
        color-mix(in srgb, var(--danger-light) 25%, transparent),
        color-mix(in srgb, var(--info) 25%, transparent),
        color-mix(in srgb, var(--success) 25%, transparent),
        rgba(31, 61, 43, 0.35));
    -webkit-mask: linear-gradient(#000, #000) content-box, linear-gradient(#000, #000);
    -webkit-mask-composite: xor;
            mask-composite: exclude;
    pointer-events: none;
    opacity: 0.55;
    animation: neuro-aura-rotate 18s linear infinite;
    z-index: 2;
}
@property --neuro-aura-angle {
    syntax: '<angle>';
    initial-value: 0deg;
    inherits: false;
}
@keyframes neuro-aura-rotate {
    to { --neuro-aura-angle: 360deg; }
}
/* Fallback для браузеров без @property — просто opacity-дыхание. */
@supports not (background: conic-gradient(from 0deg, #000, #000)) {
    #neuro-art-view::before {
        background: linear-gradient(135deg, rgba(31, 61, 43, 0.25), color-mix(in srgb, var(--danger-light) 20%, transparent), color-mix(in srgb, var(--info) 20%, transparent));
        animation: neuro-aura-breathe 6s ease-in-out infinite;
    }
    @keyframes neuro-aura-breathe {
        0%, 100% { opacity: 0.35; }
        50%      { opacity: 0.7; }
    }
}

#neuro-art-view.show {
    display: flex;
}

/* ── Mood / Vibe bar ────────────────────────────────────────────────── */
/* Тонкая полоса «настроений» — один клик разом настраивает сцену +
   цвет + FX-preset + режим автосмены. Для медиа-художника это
   быстрый способ попасть в нужный vibe без копания в sliders. */
.neuro-art-moodbar {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.55rem 0.85rem;
    background: linear-gradient(180deg,
        rgba(255, 255, 255, 0.96),
        color-mix(in srgb, var(--bg-secondary) 92%, transparent));
    backdrop-filter: blur(10px) saturate(1.1);
    -webkit-backdrop-filter: blur(10px) saturate(1.1);
    border-bottom: 1px solid rgba(31, 61, 43, 0.12);
    flex-wrap: wrap;
    position: relative;
    z-index: 11;
}
.moodbar-title {
    font-size: 12px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--gray-500);
    padding: 0 0.35rem;
    font-weight: 600;
}
.mood-tile {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.35rem 0.7rem;
    border-radius: 999px;
    border: 1px solid rgba(31, 61, 43, 0.18);
    background: rgba(255, 255, 255, 0.7);
    color: var(--gray-700);
    font-size: 0.78rem;
    font-weight: 500;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.25s ease, background 0.25s ease, border-color 0.25s ease;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}
.mood-tile::after {
    /* Лёгкий gradient sheen, раскрывается при hover */
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, transparent 0%, rgba(31, 61, 43, 0.18) 45%, transparent 100%);
    transform: translateX(-120%);
    transition: transform 0.6s ease;
    pointer-events: none;
}
.mood-tile:hover {
    transform: translateY(-1px);
    background: rgba(255, 255, 255, 0.95);
    border-color: rgba(31, 61, 43, 0.4);
    box-shadow: 0 6px 16px -6px rgba(31, 61, 43, 0.35);
}
.mood-tile:hover::after { transform: translateX(120%); }
.mood-tile.is-active {
    background: linear-gradient(135deg, rgba(31, 61, 43, 0.95), rgba(31, 61, 43, 0.95));
    color: var(--white);
    border-color: rgba(31, 61, 43, 0.9);
    box-shadow: 0 8px 22px -8px rgba(31, 61, 43, 0.7);
}
.mood-tile .mood-emoji {
    font-size: 0.95rem;
    line-height: 1;
}
.moodbar-spacer { flex: 1; }
.moodbar-help {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.3rem 0.7rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.75);
    border: 1px solid color-mix(in srgb, var(--dark) 12%, transparent);
    color: var(--text-secondary);
    font-size: 0.75rem;
    cursor: pointer;
    transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.moodbar-help:hover {
    color: var(--primary-dark);
    border-color: rgba(31, 61, 43, 0.5);
    background: rgba(31, 61, 43, 0.08);
}

/* ── Toolbar ───────────────────────────────────────────────────────── */
.neuro-art-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem 0.9rem;
    padding: 0.7rem 1rem;
    background: linear-gradient(180deg,
        rgba(255, 255, 255, 0.88),
        color-mix(in srgb, var(--bg-secondary) 92%, transparent));
    backdrop-filter: blur(14px) saturate(1.2);
    -webkit-backdrop-filter: blur(14px) saturate(1.2);
    border-bottom: 1px solid color-mix(in srgb, var(--dark) 8%, transparent);
    z-index: 10;
    position: relative;
}

.neuro-art-toolbar .toolbar-group {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.2rem 0.55rem;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.55);
    border: 1px solid rgba(31, 61, 43, 0.1);
    position: relative;
    transition: border-color 0.2s ease, background 0.2s ease;
}
.neuro-art-toolbar .toolbar-group:hover {
    border-color: rgba(31, 61, 43, 0.28);
    background: rgba(255, 255, 255, 0.8);
}
/* Section captions — маленький монохром label над группой */
.neuro-art-toolbar .toolbar-group[data-section]::before {
    content: attr(data-section);
    position: absolute;
    top: -9px;
    left: 10px;
    padding: 0 5px;
    font-size: 12px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-accent);
    background: inherit;
    opacity: 0.75;
    font-weight: 600;
    pointer-events: none;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.92), color-mix(in srgb, var(--bg-secondary) 92%, transparent));
    border-radius: 3px;
}

.neuro-art-toolbar label {
    color: var(--text-secondary);
    font-size: 0.75rem;
    white-space: nowrap;
}

.neuro-art-toolbar select,
.neuro-art-toolbar input[type="range"] {
    background: var(--bg-card);
    border: 1px solid color-mix(in srgb, var(--dark) 15%, transparent);
    color: var(--dark);
    border-radius: var(--radius);
    padding: 0.3rem 0.5rem;
    font-size: 0.8rem;
}

.neuro-art-toolbar select {
    min-width: 140px;
}

.neuro-art-toolbar input[type="range"] {
    width: 80px;
    accent-color: var(--color-primary);
}

.neuro-art-toolbar .range-value {
    color: var(--primary);
    font-size: 0.8rem;
    font-weight: 600;
    min-width: 2ch;
    text-align: center;
}

/* ── Buttons ───────────────────────────────────────────────────────── */
.neuro-art-toolbar .btn-neuro {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.4rem 0.75rem;
    background: var(--bg-card);
    border: 1px solid color-mix(in srgb, var(--dark) 15%, transparent);
    border-radius: var(--radius-md);
    color: var(--dark);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.btn-neuro.btn-generate {
    background:
        linear-gradient(135deg, var(--color-primary), var(--color-accent), var(--danger-light), var(--color-primary));
    background-size: 280% 280%;
    color: var(--white);
    border-color: transparent;
    box-shadow: 0 4px 14px -4px rgba(31, 61, 43, 0.55),
                0 0 0 1px rgba(31, 61, 43, 0.35) inset;
    animation: neuro-generate-shimmer 9s ease infinite;
    position: relative;
    font-weight: 600;
    letter-spacing: 0.01em;
}
.btn-neuro.btn-generate::after {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: inherit;
    background: radial-gradient(circle at 50% 50%, color-mix(in srgb, var(--danger-light) 35%, transparent), transparent 60%);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}
.btn-neuro.btn-generate:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 24px -6px rgba(31, 61, 43, 0.75),
                0 0 0 1px color-mix(in srgb, var(--danger-light) 55%, transparent) inset;
}
.btn-neuro.btn-generate:hover::after { opacity: 1; }
@keyframes neuro-generate-shimmer {
    0%   { background-position: 0% 50%; }
    50%  { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.btn-neuro.btn-generate.loading {
    opacity: 0.6;
    pointer-events: none;
}

.btn-neuro.btn-screenshot {
    background: color-mix(in srgb, var(--success) 15%, transparent);
    color: var(--success-light);
    border-color: color-mix(in srgb, var(--success) 30%, transparent);
}

.btn-neuro.btn-screenshot:hover {
    background: color-mix(in srgb, var(--success) 25%, transparent);
}

.btn-neuro.btn-record {
    background: color-mix(in srgb, var(--danger) 15%, transparent);
    color: var(--danger-light);
    border-color: color-mix(in srgb, var(--danger) 30%, transparent);
    position: relative;
}

.btn-neuro.btn-record:hover {
    background: color-mix(in srgb, var(--danger) 25%, transparent);
}

.btn-neuro.btn-record.recording {
    background: color-mix(in srgb, var(--danger) 40%, transparent);
    color: var(--white);
    animation: rec-pulse 1s ease-in-out infinite;
}

.rec-icon {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--danger);
}

.btn-neuro.btn-record.recording .rec-icon {
    background: var(--bg-card);
}

@keyframes rec-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

/* ── Canvas area ───────────────────────────────────────────────────── */
/* Wrapper holds the 3D canvas + the absolute-positioned FX drawer.
   Must be a flex-column so `#neuro-art-canvas` can flex:1 as before —
   otherwise the canvas collapses to height:0 (black screen bug). */
#neuro-art-canvas-wrap {
    position: relative;
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
}

#neuro-art-canvas {
    flex: 1;
    position: relative;
    min-height: 400px;
    /* Светлый placeholder — до первого generate() canvas пустой.
       После generate() ForceGraph3D перекрашивает clear-color под палитру. */
    background: var(--bg-card);
}

#neuro-art-canvas canvas {
    display: block;
    width: 100% !important;
    height: 100% !important;
}

/* Fade-in wash — проигрывается при переключении сцены, чтобы переход
   не был «дёрганым» (canvas мгновенно обновляется, оверлей даёт артисту
   мягкое дыхание ≈0.6 c). Триггерится JS через `.scene-transition`. */
#neuro-art-canvas-wrap.scene-transition::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 50% 50%,
        rgba(255, 255, 255, 0.08),
        rgba(31, 61, 43, 0.20) 45%,
        color-mix(in srgb, var(--dark) 0%, transparent) 85%);
    pointer-events: none;
    animation: neuro-scene-flash 0.7s ease-out forwards;
    z-index: 15;
    mix-blend-mode: screen;
}
@keyframes neuro-scene-flash {
    0%   { opacity: 0; transform: scale(0.92); }
    35%  { opacity: 1; transform: scale(1.0); }
    100% { opacity: 0; transform: scale(1.05); }
}

/* ── Status bar ────────────────────────────────────────────────────── */
.neuro-art-statusbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.4rem 1rem;
    background: color-mix(in srgb, var(--bg-secondary) 97%, transparent);
    border-top: 1px solid color-mix(in srgb, var(--dark) 10%, transparent);
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.neuro-art-stats {
    display: flex;
    gap: 1rem;
}

.neuro-art-stats span {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

/* ── Placeholder state ─────────────────────────────────────────────── */
.neuro-art-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    min-height: 400px;
    color: var(--gray-400);
    text-align: center;
    gap: 1rem;
    position: relative;
    overflow: hidden;
}
/* Мягкая аура под иконкой — намёк на «живое поле» ещё до первого рендера */
.neuro-art-placeholder .placeholder-aura {
    position: absolute;
    inset: 10% 20%;
    background:
        radial-gradient(circle at 30% 40%, rgba(31, 61, 43, 0.22), transparent 55%),
        radial-gradient(circle at 70% 70%, color-mix(in srgb, var(--danger-light) 18%, transparent), transparent 55%),
        radial-gradient(circle at 50% 80%, color-mix(in srgb, var(--info) 18%, transparent), transparent 50%);
    filter: blur(40px);
    animation: neuro-placeholder-drift 14s ease-in-out infinite alternate;
    pointer-events: none;
    z-index: 0;
}
@keyframes neuro-placeholder-drift {
    0%   { transform: translate(-4%, 2%) scale(1.0); }
    50%  { transform: translate(3%, -2%) scale(1.08); }
    100% { transform: translate(-2%, 3%) scale(1.02); }
}
.neuro-art-placeholder > *:not(.placeholder-aura) { position: relative; z-index: 1; }

.neuro-art-placeholder .placeholder-icon {
    font-size: 4.5rem;
    opacity: 0.55;
    animation: neuro-placeholder-pulse 3.2s ease-in-out infinite;
    filter: drop-shadow(0 6px 20px rgba(31, 61, 43, 0.35));
}
@keyframes neuro-placeholder-pulse {
    0%, 100% { transform: scale(1.0); opacity: 0.55; }
    50%      { transform: scale(1.07); opacity: 0.85; }
}

.neuro-art-placeholder .placeholder-text {
    font-size: 1.15rem;
    font-weight: 600;
    max-width: 340px;
    line-height: 1.4;
    background: linear-gradient(135deg, var(--primary-dark), var(--color-accent) 40%, var(--danger-light));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    letter-spacing: 0.01em;
}

.neuro-art-placeholder .placeholder-hint {
    font-size: 0.82rem;
    opacity: 0.8;
    max-width: 420px;
    color: var(--text-secondary);
}

.neuro-art-placeholder .placeholder-chips {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.4rem;
    margin-top: 0.25rem;
    max-width: 520px;
}
.neuro-art-placeholder .placeholder-chips span {
    padding: 0.25rem 0.7rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.75);
    border: 1px solid rgba(31, 61, 43, 0.2);
    color: var(--primary-dark);
    font-size: 0.75rem;
    font-weight: 500;
    backdrop-filter: blur(6px);
}

/* ── Responsive ────────────────────────────────────────────────────── */
@media (max-width: 768px) {
    .neuro-art-toolbar {
        padding: 0.5rem;
        gap: 0.5rem;
    }

    .neuro-art-toolbar .toolbar-group {
        flex-wrap: wrap;
    }

    .neuro-art-toolbar select {
        min-width: 100px;
    }
}

/* ── Neuro-art checkbox in other dashboards ────────────────────────── */
.neuro-art-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0;
}

.neuro-art-option input[type="checkbox"] {
    accent-color: var(--color-primary);
}

.neuro-art-option label {
    font-size: 0.85rem;
    color: var(--gray-500);
    cursor: pointer;
}

.neuro-art-option .neuro-art-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.2rem;
    padding: 0.15rem 0.4rem;
    background: linear-gradient(135deg, rgba(31, 61, 43, 0.15), rgba(31, 61, 43, 0.15));
    color: var(--primary-light);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

/* ── FX Constructor drawer ─────────────────────────────────────────── */
.fx-drawer {
    position: absolute;
    top: 0;
    right: 0;
    width: 340px;
    max-width: 90vw;
    height: 100%;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), color-mix(in srgb, var(--bg-secondary) 98%, transparent));
    backdrop-filter: blur(12px);
    border-left: 1px solid rgba(31, 61, 43, 0.2);
    box-shadow: -12px 0 40px color-mix(in srgb, var(--dark) 12%, transparent);
    color: var(--dark);
    font-size: 12px;
    overflow-y: auto;
    transform: translateX(110%);
    transition: transform 0.28s ease-out;
    z-index: 20;
    padding-bottom: 1rem;
}
.fx-drawer.is-open {
    transform: translateX(0);
}

.fx-header {
    position: sticky;
    top: 0;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.6rem 0.8rem;
    background: color-mix(in srgb, var(--bg-secondary) 98%, transparent);
    border-bottom: 1px solid rgba(31, 61, 43, 0.2);
    z-index: 1;
}
.fx-header strong {
    font-size: 13px;
    color: var(--primary-dark);
    letter-spacing: 0.02em;
}
.fx-header select {
    flex: 1;
    background: var(--bg-card);
    border: 1px solid color-mix(in srgb, var(--dark) 15%, transparent);
    color: var(--dark);
    border-radius: var(--radius);
    padding: 0.28rem 0.45rem;
    font-size: 12px;
}
.fx-btn {
    background: var(--bg-card);
    border: 1px solid color-mix(in srgb, var(--dark) 15%, transparent);
    color: var(--primary-dark);
    border-radius: var(--radius);
    padding: 0.3rem 0.55rem;
    cursor: pointer;
    font-size: 13px;
    line-height: 1;
    transition: background 0.15s;
}
.fx-btn:hover { background: rgba(31, 61, 43, 0.12); }

.fx-section {
    padding: 0.75rem 0.9rem 0.4rem 0.9rem;
    border-bottom: 1px dashed rgba(31, 61, 43, 0.15);
}
.fx-section h4 {
    margin: 0 0 0.45rem 0;
    font-size: 12px;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 600;
}

.fx-row {
    display: grid;
    grid-template-columns: 110px 1fr 52px;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 0;
    color: var(--dark);
}
.fx-row > span:first-child {
    font-size: 12px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.fx-row input[type="range"] {
    width: 100%;
    accent-color: var(--primary);
}
.fx-row input[type="checkbox"] {
    justify-self: start;
    accent-color: var(--primary);
}
.fx-val {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--primary);
    text-align: right;
}

.btn-neuro.btn-fx {
    background: linear-gradient(135deg, rgba(31, 61, 43, 0.12), rgba(31, 61, 43, 0.12));
    border-color: rgba(31, 61, 43, 0.35);
    color: var(--primary-dark);
}
.btn-neuro.btn-fx.is-open {
    background: linear-gradient(135deg, rgba(31, 61, 43, 0.5), rgba(31, 61, 43, 0.5));
    border-color: rgba(31, 61, 43, 0.7);
    color: var(--white);
}

/* ── Tier 5 Broadcast / Media Art Production ─────────────────────── */

/* Broadcast mode buttons: state=active цвет = бирюза / пурпур чтобы
   оператор сразу видел что режим ON при взгляде на тулбар. */
.btn-neuro.btn-autonomous {
    background: linear-gradient(135deg, color-mix(in srgb, var(--success) 12%, transparent), color-mix(in srgb, var(--info-light) 12%, transparent));
    border-color: color-mix(in srgb, var(--success) 35%, transparent);
    color: var(--status-success);
}
.btn-neuro.btn-autonomous.is-active {
    background: linear-gradient(135deg, color-mix(in srgb, var(--success) 50%, transparent), color-mix(in srgb, var(--info-light) 50%, transparent));
    border-color: color-mix(in srgb, var(--success) 70%, transparent);
    color: var(--white);
    animation: autonomous-pulse 2.6s ease-in-out infinite;
}
@keyframes autonomous-pulse {
    0%, 100% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--success) 35%, transparent); }
    50%      { box-shadow: 0 0 0 10px color-mix(in srgb, var(--success) 0%, transparent); }
}

.btn-neuro.btn-broadcast {
    background: linear-gradient(135deg, color-mix(in srgb, var(--danger-light) 12%, transparent), color-mix(in srgb, var(--danger) 12%, transparent));
    border-color: color-mix(in srgb, var(--danger-light) 35%, transparent);
    color: var(--status-danger);
}
.btn-neuro.btn-broadcast.is-active {
    background: linear-gradient(135deg, color-mix(in srgb, var(--danger-light) 55%, transparent), color-mix(in srgb, var(--danger) 55%, transparent));
    border-color: color-mix(in srgb, var(--danger) 70%, transparent);
    color: var(--white);
}

/* Tier 7 — Presenter Window (dual-monitor output button). */
.btn-neuro.btn-presenter {
    background: linear-gradient(135deg, color-mix(in srgb, var(--info) 12%, transparent), rgba(31, 61, 43, 0.12));
    border-color: color-mix(in srgb, var(--info) 35%, transparent);
    color: var(--status-info);
}
.btn-neuro.btn-presenter.is-active {
    background: linear-gradient(135deg, color-mix(in srgb, var(--info) 55%, transparent), rgba(31, 61, 43, 0.55));
    border-color: color-mix(in srgb, var(--info) 70%, transparent);
    color: var(--white);
    box-shadow: 0 0 0 1px color-mix(in srgb, var(--info) 45%, transparent);
}

/* Broadcast mode — `#neuro-art-view.broadcast-mode`:
   весь viewport занимает canvas; тулбар, status bar, FX drawer скрыты.
   Оператор может нажать Esc чтобы выйти, F — toggle fullscreen,
   A — autonomous motion. */
#neuro-art-view.broadcast-mode {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 9999;
    background: var(--dark);
    border-radius: 0;
    border: none;
}
#neuro-art-view.broadcast-mode .neuro-art-toolbar,
#neuro-art-view.broadcast-mode .neuro-art-statusbar,
#neuro-art-view.broadcast-mode .fx-drawer {
    display: none !important;
}
#neuro-art-view.broadcast-mode #neuro-art-canvas-wrap {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--dark);
}

/* Aspect ratio letterboxing. Применяется в broadcast-режиме; в обычном
   canvas-wrap просто заполняет flex-container без констрейнтов.
   Используется `aspect-ratio` CSS property + max-width/max-height
   для корректной вписки в viewport с сохранением пропорций. */
#neuro-art-view.broadcast-mode #neuro-art-canvas-wrap[data-aspect="16:9"] #neuro-art-canvas,
#neuro-art-view.broadcast-mode #neuro-art-canvas-wrap[data-aspect="21:9"] #neuro-art-canvas,
#neuro-art-view.broadcast-mode #neuro-art-canvas-wrap[data-aspect="32:9"] #neuro-art-canvas,
#neuro-art-view.broadcast-mode #neuro-art-canvas-wrap[data-aspect="9:16"] #neuro-art-canvas,
#neuro-art-view.broadcast-mode #neuro-art-canvas-wrap[data-aspect="1:1"] #neuro-art-canvas,
#neuro-art-view.broadcast-mode #neuro-art-canvas-wrap[data-aspect="4:3"] #neuro-art-canvas,
#neuro-art-view.broadcast-mode #neuro-art-canvas-wrap[data-aspect="dci_4k"] #neuro-art-canvas {
    width: auto !important;
    height: auto !important;
    max-width: 100vw;
    max-height: 100vh;
    flex: none;
}

#neuro-art-view.broadcast-mode #neuro-art-canvas-wrap[data-aspect="16:9"] #neuro-art-canvas { aspect-ratio: 16 / 9; width: min(100vw, calc(100vh * 16 / 9)) !important; }
#neuro-art-view.broadcast-mode #neuro-art-canvas-wrap[data-aspect="21:9"] #neuro-art-canvas { aspect-ratio: 21 / 9; width: min(100vw, calc(100vh * 21 / 9)) !important; }
#neuro-art-view.broadcast-mode #neuro-art-canvas-wrap[data-aspect="32:9"] #neuro-art-canvas { aspect-ratio: 32 / 9; width: min(100vw, calc(100vh * 32 / 9)) !important; }
#neuro-art-view.broadcast-mode #neuro-art-canvas-wrap[data-aspect="9:16"] #neuro-art-canvas { aspect-ratio: 9 / 16; height: min(100vh, calc(100vw * 16 / 9)) !important; width: auto !important; }
#neuro-art-view.broadcast-mode #neuro-art-canvas-wrap[data-aspect="1:1"]  #neuro-art-canvas { aspect-ratio: 1 / 1;  width: min(100vw, 100vh) !important; height: min(100vw, 100vh) !important; }
#neuro-art-view.broadcast-mode #neuro-art-canvas-wrap[data-aspect="4:3"]  #neuro-art-canvas { aspect-ratio: 4 / 3;  width: min(100vw, calc(100vh * 4 / 3)) !important; }
#neuro-art-view.broadcast-mode #neuro-art-canvas-wrap[data-aspect="dci_4k"] #neuro-art-canvas { aspect-ratio: 256 / 135; width: min(100vw, calc(100vh * 256 / 135)) !important; }

/* Hotkey overlay hint — показывается 2с после включения broadcast-режима */
#neuro-art-view.broadcast-mode::after {
    content: "B — выйти · A — авто-движение · F — fullscreen · P — presenter · R — генерировать · Esc — выход";
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.55);
    background: rgba(0, 0, 0, 0.5);
    padding: 6px 14px;
    border-radius: var(--radius);
    font-size: 12px;
    font-family: var(--font-mono);
    backdrop-filter: blur(6px);
    pointer-events: none;
    animation: broadcast-hint-fade 2s ease-out 3s forwards;
}
@keyframes broadcast-hint-fade {
    to { opacity: 0; }
}

@media (max-width: 640px) {
    .fx-drawer { width: 100%; }
}

/* ── Live HUD overlay (top-left of canvas) ──────────────────────────── */
/* Показывает сцену · схему · пульс (час+луна). Артист видит «пульс города»
   не отрывая взгляд от холста. Прозрачная glass-плитка. Скрывается
   автоматически в broadcast-mode чтобы не пачкать кадр. */
.neuro-art-hud {
    position: absolute;
    top: 14px;
    left: 14px;
    z-index: 12;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.8rem;
    border-radius: 999px;
    background: color-mix(in srgb, var(--dark) 38%, transparent);
    color: rgba(255, 255, 255, 0.92);
    font-size: 12px;
    letter-spacing: 0.04em;
    backdrop-filter: blur(10px) saturate(1.3);
    -webkit-backdrop-filter: blur(10px) saturate(1.3);
    border: 1px solid rgba(255, 255, 255, 0.14);
    pointer-events: none;
    font-family: var(--font-sans);
    box-shadow: 0 8px 24px -8px rgba(0, 0, 0, 0.4);
    opacity: 0;
    transform: translateY(-6px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}
.neuro-art-hud.is-visible {
    opacity: 1;
    transform: translateY(0);
}
.neuro-art-hud.is-hidden { display: none; }
.hud-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--success-light);
    box-shadow: 0 0 10px var(--success-light);
    animation: hud-dot-pulse 1.6s ease-in-out infinite;
}
@keyframes hud-dot-pulse {
    0%, 100% { opacity: 0.7; transform: scale(1.0); }
    50%      { opacity: 1;   transform: scale(1.35); }
}
.hud-scene   { font-weight: 600; letter-spacing: 0.05em; }
.hud-scheme  { opacity: 0.85; }
.hud-pulse   { font-family: var(--font-mono); opacity: 0.7; }
.hud-sep     { opacity: 0.35; }
/* В broadcast-mode прячем (чтобы не пачкать live-кадр) */
#neuro-art-view.broadcast-mode .neuro-art-hud,
#neuro-art-view.broadcast-mode .neuro-art-rotate-ring { display: none !important; }

/* Для светлых схем (paper_white, ink_wash) HUD тоже светлый —
   тёмный текст на glass, чтобы читалось на белом холсте. */
#neuro-art-view.light-scheme .neuro-art-hud {
    background: rgba(255, 255, 255, 0.78);
    color: var(--gray-800);
    border-color: color-mix(in srgb, var(--dark) 12%, transparent);
    box-shadow: 0 8px 24px -8px color-mix(in srgb, var(--dark) 25%, transparent);
}
#neuro-art-view.light-scheme .hud-sep { color: var(--gray-500); }

/* ── Scene rotation progress ring (top-right) ───────────────────────── */
/* Видно только когда «Авто-сцены» > 0. SVG circle fills via
   stroke-dashoffset из JS. Тонкий, ненавязчивый. */
.neuro-art-rotate-ring {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 36px;
    height: 36px;
    z-index: 12;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}
.neuro-art-rotate-ring.is-visible { opacity: 0.85; }
.neuro-art-rotate-ring.is-hidden { display: none; }
.neuro-art-rotate-ring svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
    filter: drop-shadow(0 2px 8px rgba(31, 61, 43, 0.45));
}
.neuro-art-rotate-ring .ring-track {
    fill: none;
    stroke: rgba(255, 255, 255, 0.2);
    stroke-width: 2.5;
}
.neuro-art-rotate-ring .ring-progress {
    fill: none;
    stroke: url(#neuroart-ring-grad);
    stroke: var(--primary-light);
    stroke-width: 2.5;
    stroke-linecap: round;
    stroke-dasharray: 100.53;  /* 2π·16 */
    stroke-dashoffset: 100.53;
    transition: stroke-dashoffset 0.2s linear;
}
#neuro-art-view.light-scheme .neuro-art-rotate-ring .ring-track   { stroke: color-mix(in srgb, var(--dark) 15%, transparent); }
#neuro-art-view.light-scheme .neuro-art-rotate-ring .ring-progress{ stroke: var(--color-primary); }

/* ── Help modal ─────────────────────────────────────────────────────── */
.neuro-art-help-modal {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}
.neuro-art-help-modal.is-hidden { display: none; }
.help-backdrop {
    position: absolute;
    inset: 0;
    background: color-mix(in srgb, var(--dark) 55%, transparent);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    animation: neuro-help-fadein 0.25s ease-out;
}
.help-card {
    position: relative;
    max-width: 760px;
    width: 100%;
    max-height: 86vh;
    overflow: auto;
    background: linear-gradient(180deg, var(--white), var(--bg-secondary));
    border: 1px solid rgba(31, 61, 43, 0.25);
    border-radius: var(--radius-xl);
    box-shadow: 0 24px 60px -16px color-mix(in srgb, var(--dark) 40%, transparent),
                0 0 0 1px rgba(31, 61, 43, 0.25);
    color: var(--dark);
    animation: neuro-help-pop 0.3s cubic-bezier(0.22, 1.2, 0.36, 1);
}
@keyframes neuro-help-fadein { from { opacity: 0; } to { opacity: 1; } }
@keyframes neuro-help-pop {
    from { opacity: 0; transform: scale(0.95) translateY(10px); }
    to   { opacity: 1; transform: scale(1) translateY(0); }
}
.help-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.4rem;
    border-bottom: 1px solid rgba(31, 61, 43, 0.15);
    position: sticky;
    top: 0;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), color-mix(in srgb, var(--bg-secondary) 92%, transparent));
    backdrop-filter: blur(10px);
    z-index: 1;
}
.help-header h3 {
    margin: 0;
    font-size: 1rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-dark), var(--color-accent) 45%, var(--danger-light));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.help-close {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: 1px solid color-mix(in srgb, var(--dark) 12%, transparent);
    background: rgba(255, 255, 255, 0.85);
    color: var(--text-secondary);
    font-size: 13px;
    cursor: pointer;
    transition: background 0.2s, color 0.2s, border-color 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.help-close:hover {
    background: color-mix(in srgb, var(--danger) 12%, transparent);
    color: var(--danger-dark);
    border-color: color-mix(in srgb, var(--danger) 40%, transparent);
}
.help-body {
    padding: 1rem 1.4rem 1.4rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.1rem 1.4rem;
    font-size: 0.85rem;
    line-height: 1.55;
    color: var(--gray-700);
}
.help-body section h4 {
    margin: 0 0 0.45rem 0;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--primary);
    font-weight: 700;
}
.help-body ul, .help-body ol {
    margin: 0;
    padding-left: 1.1rem;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}
.help-body .help-keys {
    padding-left: 0;
    list-style: none;
}
.help-body .help-keys li {
    display: flex;
    align-items: center;
    gap: 0.55rem;
}
.help-body kbd {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 22px;
    height: 22px;
    padding: 0 6px;
    border-radius: 5px;
    border: 1px solid color-mix(in srgb, var(--dark) 18%, transparent);
    background: linear-gradient(180deg, var(--white), var(--bg-tertiary));
    color: var(--gray-800);
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    box-shadow: 0 1px 0 color-mix(in srgb, var(--dark) 8%, transparent);
}
.help-body strong { color: var(--dark); }
@media (max-width: 640px) {
    .help-body { grid-template-columns: 1fr; }
}