/* design-systems/application/tokens.css
     * Structured token bindings for Application.
     * neutral app chrome, practical hierarchy, restrained blue action, and predictable product layout.
     */

    :root {
      --bg: #f6f7f9;
      --surface: #ffffff;
      --surface-warm: #eef4ff;
      --fg: #172033;
      --fg-2: #3b4658;
      --muted: #6b7689;
      --meta: #2563eb;
      --border: #d8dee8;
      --border-soft: #edf1f6;
      --accent: #2563eb;
      --accent-on: #ffffff;
      --accent-hover: color-mix(in oklab, var(--accent), black 8%);
      --accent-active: color-mix(in oklab, var(--accent), black 14%);
      --success: #16a34a;
      --warn: #f59e0b;
      --danger: #dc2626;
      --font-display: 'Inter', system-ui, sans-serif;
      --font-body: 'Inter', system-ui, sans-serif;
      --font-mono: "SF Mono", ui-monospace, Menlo, monospace;
      --text-xs: 12px;
      --text-sm: 14px;
      --text-base: 16px;
      --text-lg: 18px;
      --text-xl: 22px;
      --text-2xl: 30px;
      --text-3xl: 42px;
      --text-4xl: 58px;
      --leading-body: 1.5;
      --leading-tight: 1.12;
      --tracking-display: -0.015em;
      --space-1: 4px;
      --space-2: 8px;
      --space-3: 12px;
      --space-4: 16px;
      --space-5: 20px;
      --space-6: 24px;
      --space-8: 32px;
      --space-12: 48px;
      --section-y-desktop: 88px;
      --section-y-tablet: 64px;
      --section-y-phone: 44px;
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --radius-pill: 9999px;
      --elev-flat: none;
      --elev-ring: 0 0 0 1px var(--border);
      --elev-raised: 0 16px 40px rgba(23, 32, 51, 0.10);
      --focus-ring: 0 0 0 4px rgba(37, 99, 235, 0.22);
      --motion-fast: 140ms;
      --motion-base: 220ms;
      --ease-standard: cubic-bezier(0.2, 0, 0, 1);
      --container-max: 1200px;
      --container-gutter-desktop: 36px;
      --container-gutter-tablet: 24px;
      --container-gutter-phone: 16px;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      min-height: 100dvh;
      background:
        radial-gradient(circle at 20% 0%, color-mix(in oklab, var(--surface-warm), transparent 18%), transparent 34rem),
        linear-gradient(180deg, var(--surface), var(--bg) 30rem);
      color: var(--fg);
      font: var(--text-sm)/var(--leading-body) var(--font-body);
      -webkit-font-smoothing: antialiased;
    }
    button, input, textarea, select { font: inherit; }
    button { cursor: pointer; }
    a { color: inherit; }
    .skip-link { position:absolute; left:var(--space-4); top:var(--space-4); transform:translateY(-160%); background:var(--accent); color:var(--accent-on); padding:var(--space-2) var(--space-3); border-radius:var(--radius-sm); z-index:50; }
    .skip-link:focus { transform:none; outline:0; box-shadow:var(--focus-ring); }

    .app-shell { min-height: 100dvh; display: grid; grid-template-columns: 244px minmax(0, 1fr); }
    .sidebar { position: sticky; top: 0; height: 100dvh; overflow:auto; padding: var(--space-4) var(--space-3); border-right: 1px solid var(--border); background: color-mix(in oklab, var(--surface), var(--bg) 18%); }
    .brand { display:flex; align-items:center; gap:var(--space-3); padding:var(--space-2) var(--space-2) var(--space-5); }
    .mark { width:38px; height:38px; border-radius:var(--radius-md); display:grid; place-items:center; background:var(--accent); color:var(--accent-on); font:800 var(--text-sm)/1 var(--font-display); box-shadow:0 12px 28px rgba(37,99,235,.24); }
    .brand strong, h1, h2, h3 { font-family:var(--font-display); letter-spacing:var(--tracking-display); line-height:var(--leading-tight); }
    .brand strong { display:block; font-size:var(--text-base); }
    .brand span { color:var(--muted); font-size:var(--text-xs); }
    .nav-group { margin-block:var(--space-4) var(--space-2); padding-inline:var(--space-2); color:var(--muted); font:800 10px/1 var(--font-mono); text-transform:uppercase; letter-spacing:.13em; }
    .nav-item { display:flex; align-items:center; gap:var(--space-3); min-height:38px; padding:0 var(--space-2); border-radius:var(--radius-md); color:var(--fg-2); text-decoration:none; font-weight:650; transition:background var(--motion-fast) var(--ease-standard), color var(--motion-fast) var(--ease-standard); }
    .nav-item:hover { background:var(--border-soft); }
    .nav-item.active { background:var(--surface-warm); color:var(--accent); box-shadow:inset 0 0 0 1px color-mix(in oklab, var(--accent), var(--surface) 78%); }
    .glyph { width:24px; height:24px; border-radius:var(--radius-sm); display:grid; place-items:center; background:var(--surface); color:var(--muted); box-shadow:var(--elev-ring); font:800 11px/1 var(--font-mono); }
    .active .glyph { color:var(--accent); }

    .main { min-width:0; display:grid; grid-template-rows:auto 1fr; }
    .topbar { position: sticky; top:0; z-index:20; display:flex; align-items:center; justify-content:space-between; gap:var(--space-3); min-height:52px; padding:var(--space-2) var(--space-4); border-bottom:1px solid var(--border); background:color-mix(in oklab, var(--surface), transparent 8%); backdrop-filter: blur(18px); }
    .crumb { color:var(--muted); display:flex; flex-wrap:wrap; gap:6px; font-size:11px; line-height:1.1; }
    .crumb strong { color:var(--fg); }
    h1 { margin:2px 0 0; font-size:clamp(18px, 1.45vw, 22px); }
    .workflow-title { margin-top:2px; color:var(--fg); font:800 clamp(18px, 1.45vw, 22px)/var(--leading-tight) var(--font-display); letter-spacing:var(--tracking-display); }
    .top-actions, .row-actions, .footer-actions, .mini-actions { display:flex; align-items:center; gap:var(--space-2); }
    .btn { min-height:32px; border:1px solid var(--border); border-radius:var(--radius-md); padding:0 var(--space-3); background:var(--surface); color:var(--fg); display:inline-flex; align-items:center; justify-content:center; gap:var(--space-2); font-size:var(--text-xs); font-weight:750; line-height:1; white-space:nowrap; transition:border-color var(--motion-fast) var(--ease-standard), background var(--motion-fast) var(--ease-standard), color var(--motion-fast) var(--ease-standard); }
    .btn:hover { border-color:color-mix(in oklab, var(--accent), var(--border) 72%); }
    .btn:active { background:color-mix(in oklab, var(--surface), var(--fg) 4%); }
    .btn:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible, .tree-row:focus-visible, .tab-btn:focus-visible { outline:0; box-shadow:var(--focus-ring); }
    .btn-primary { background:var(--accent); border-color:var(--accent); color:var(--accent-on); box-shadow:0 12px 26px rgba(37,99,235,.22); }
    .btn-primary:hover { background:var(--accent-hover); color:var(--accent-on); }
    .btn-danger { color:var(--danger); background:transparent; border-color:transparent; box-shadow:none; }
    .btn-danger:hover { color:var(--danger); background:color-mix(in oklab, var(--danger), transparent 92%); border-color:transparent; }
    .btn-danger:active { background:color-mix(in oklab, var(--danger), transparent 88%); }
    .btn-danger:focus-visible { border-color:transparent; box-shadow:0 0 0 4px color-mix(in oklab, var(--danger), transparent 80%); }
    .btn-danger .material-icons { font-size:16px; line-height:1; }
    .delete-tts, .delete-question, .delete-option-audio { width:32px; padding:0; flex:0 0 32px; }
    .question-builder-card > .question-builder-head .delete-question {
      position:absolute;
      left:-38px;
      top:42px;
      width:30px;
      height:30px;
      min-height:30px;
      padding:0;
      border-radius:var(--radius-sm);
    }
    .delete-builder-option { color:var(--danger); background:transparent; border-color:transparent; box-shadow:none; }
    .delete-builder-option:hover { color:var(--danger); background:color-mix(in oklab, var(--danger), transparent 92%); border-color:transparent; }
    .delete-builder-option:active { background:color-mix(in oklab, var(--danger), transparent 88%); }
    .delete-builder-option .material-icons { font-size:16px; line-height:1; }
    .icon-btn { width:32px; height:32px; padding:0; border:1px solid var(--border); border-radius:var(--radius-sm); background:var(--surface); color:var(--muted); display:grid; place-items:center; font-weight:850; }
    .icon-btn:hover { color:var(--accent); border-color:color-mix(in oklab, var(--accent), var(--border) 62%); }
    .btn-danger,
    .icon-btn.delete-builder-option { background:transparent; border-color:transparent; color:var(--danger); box-shadow:none; }
    .btn-danger:hover,
    .icon-btn.delete-builder-option:hover { background:color-mix(in oklab, var(--danger), transparent 92%); border-color:transparent; color:var(--danger); }
    .btn-danger:active,
    .icon-btn.delete-builder-option:active { background:color-mix(in oklab, var(--danger), transparent 88%); color:var(--danger); }
    .btn-danger:focus-visible,
    .icon-btn.delete-builder-option:focus-visible { border-color:transparent; box-shadow:0 0 0 4px color-mix(in oklab, var(--danger), transparent 80%); }
    .tts-icon-btn { min-width:48px; height:32px; padding:0 var(--space-3); color:var(--accent); }
    .option-tts-tools .tts-icon-btn { min-width:48px; height:30px; padding:0 var(--space-3); }

    .workspace { min-height:0; padding:var(--space-3); display:grid; grid-template-columns:minmax(238px, 300px) minmax(560px, 1fr); gap:var(--space-3); }
    .panel { height:calc(100dvh - 76px); min-height:0; overflow:hidden; display:flex; flex-direction:column; border:1px solid var(--border); border-radius:var(--radius-lg); background:color-mix(in oklab, var(--surface), var(--bg) 8%); box-shadow:0 1px 0 var(--surface) inset; }
    .panel-head { min-height:42px; padding:8px var(--space-3); display:flex; justify-content:space-between; align-items:center; gap:var(--space-2); border-bottom:1px solid var(--border); background:linear-gradient(180deg, var(--surface), color-mix(in oklab, var(--surface), var(--bg) 32%)); }
    .eyebrow { color:var(--meta); font:800 10px/1 var(--font-mono); text-transform:uppercase; letter-spacing:.14em; }
    h2 { margin:0; font-size:var(--text-base); }
    h3 { margin:0; font-size:var(--text-base); }
    .sub { margin:var(--space-1) 0 0; color:var(--muted); font-size:var(--text-xs); }
    .pill { display:inline-flex; align-items:center; gap:var(--space-1); height:20px; padding:0 6px; border:1px solid var(--border); border-radius:var(--radius-pill); background:var(--surface); color:var(--muted); font:800 10px/1 var(--font-mono); white-space:nowrap; }
    .pill.info { color:var(--accent); background:var(--surface-warm); border-color:color-mix(in oklab, var(--accent), var(--border) 72%); }
    .pill.ok { color:var(--success); background:color-mix(in oklab, var(--success), var(--surface) 92%); border-color:color-mix(in oklab, var(--success), var(--border) 72%); }
    .pill.warn { color:color-mix(in oklab, var(--warn), var(--fg) 16%); background:color-mix(in oklab, var(--warn), var(--surface) 88%); border-color:color-mix(in oklab, var(--warn), var(--border) 58%); }

    .search { position:relative; padding:6px var(--space-3) 0; }
    .search input, .field input, .field textarea, .field select, .option-row input { width:100%; border:1px solid var(--border); border-radius:var(--radius-md); background:var(--surface); color:var(--fg); outline:0; }
    .search input { height:32px; padding:0 var(--space-2) 0 28px; background:var(--border-soft); font-size:var(--text-xs); }
    .search::before { content:"search"; position:absolute; left:20px; top:12px; color:var(--muted); font-family:"Material Icons"; font-weight:normal; font-style:normal; font-size:17px; line-height:1; letter-spacing:normal; text-transform:none; white-space:nowrap; word-wrap:normal; direction:ltr; -webkit-font-feature-settings:"liga"; -webkit-font-smoothing:antialiased; pointer-events:none; }
    .panel-scroll { overflow:auto; padding:var(--space-2) var(--space-3) var(--space-3); counter-reset:tree-index; }

    .tree-group { position:relative; margin:0; }
    .tree-group summary { list-style:none; }
    .tree-group summary::-webkit-details-marker { display:none; }
    .tree-group[open] > summary .caret { transform:none; }
    .tree-row { width:100%; min-height:24px; display:grid; grid-template-columns:16px minmax(0, 1fr) auto; gap:4px; align-items:start; padding:3px 5px; border:1px solid transparent; border-radius:var(--radius-sm); color:var(--fg); background:transparent; text-align:left; font-size:14px; line-height:1.25; cursor:pointer; counter-increment:tree-index; }
    .tree-row:hover { background:var(--surface); border-color:var(--border); }
    .tree-row.selected,
    .tree-row.active,
    .tree-row.selected:hover,
    .tree-row.active:hover { background:transparent; border-color:transparent; box-shadow:none; }
    .caret { width:16px; height:16px; display:grid; place-items:center; color:var(--muted); font-size:0; text-align:center; margin-top:1px; }
    .tree-toggle { border:0; padding:0; background:transparent; border-radius:var(--radius-sm); cursor:pointer; transition:background var(--motion-fast) var(--ease-standard), color var(--motion-fast) var(--ease-standard); }
    .tree-toggle:hover { background:var(--border-soft); color:var(--fg); }
    .tree-toggle:focus-visible { outline:0; box-shadow:var(--focus-ring); }
    .tree-group > summary .caret::before { content:"chevron_right"; font-family:"Material Icons"; font-weight:normal; font-style:normal; font-size:16px; line-height:1; letter-spacing:normal; text-transform:none; display:inline-block; white-space:nowrap; word-wrap:normal; direction:ltr; -webkit-font-feature-settings:"liga"; -webkit-font-smoothing:antialiased; }
    .tree-group[open] > summary .caret::before { content:"expand_more"; }
    .tree-leaf .caret::before { content:""; }
    .node-copy { min-width:0; display:flex; align-items:flex-start; gap:6px; }
    .node-copy strong { display:grid; grid-template-columns:24px minmax(0, 1fr) auto; column-gap:5px; align-items:start; min-width:0; overflow:visible; text-overflow:clip; white-space:normal; overflow-wrap:anywhere; color:var(--fg); font-weight:400; letter-spacing:0; }
    .node-copy strong::before { content:counter(tree-index, decimal-leading-zero); grid-column:1; min-width:24px; color:var(--muted); font:700 10px/18px var(--font-mono); text-align:right; letter-spacing:.02em; }
    .tree-row.tree-tab .node-copy strong::after {
      content:"volume_up";
      grid-column:3;
      width:18px;
      height:18px;
      display:grid;
      place-items:center;
      margin-top:0;
      border-radius:6px;
      background:var(--border-soft);
      color:var(--muted);
      font-family:"Material Icons";
      font-weight:normal;
      font-style:normal;
      font-size:14px;
      line-height:1;
      letter-spacing:normal;
      text-transform:none;
      white-space:nowrap;
      word-wrap:normal;
      direction:ltr;
      -webkit-font-feature-settings:"liga";
      -webkit-font-smoothing:antialiased;
    }
    .tree-row.tree-tab.tree-intro-video .node-copy strong::after { content:"videocam"; }
    .tree-row.tree-tab.tree-intro-audio .node-copy strong::after { content:"volume_up"; }
    .tree-row.tree-question .node-copy::before {
      width:18px;
      height:18px;
      flex:0 0 18px;
      display:grid;
      place-items:center;
      border-radius:6px;
      background:var(--border-soft);
      color:var(--muted);
      font-family:"Material Icons";
      font-weight:normal;
      font-style:normal;
      font-size:14px;
      line-height:1;
      letter-spacing:normal;
      text-transform:none;
      white-space:nowrap;
      word-wrap:normal;
      direction:ltr;
      -webkit-font-feature-settings:"liga";
      -webkit-font-smoothing:antialiased;
    }
    .tree-row.tree-tab .node-copy::before { content:none; display:none; }
    .tree-row.tree-question .node-copy::before { content:"radio_button_checked"; }
    .tree-row.tree-question.tree-q-single .node-copy::before { content:"radio_button_checked"; }
    .tree-row.tree-question.tree-q-yesno .node-copy::before { content:"toggle_on"; }
    .tree-row.tree-question.tree-q-multi .node-copy::before { content:"check_box"; }
    .tree-row.tree-question.tree-q-text .node-copy::before { content:"short_text"; }
    .tree-row.selected .node-copy::before,
    .tree-row.active .node-copy::before { background:var(--surface-warm); color:var(--accent); }
    .tree-count { color:var(--fg); font:400 14px/1 var(--font-mono); white-space:nowrap; margin-top:2px; }
    .tree-children { margin-left:7px; padding-left:13px; counter-reset:tree-index; }
    .tree-children > .tree-group, .tree-leaf { position:relative; margin:1px 0; }
    .tree-option { min-height:24px; }
    .tree-row.tree-question .caret,
    .tree-row.tree-option .caret { color:var(--muted); opacity:.58; }
    .tree-row.tree-tab .caret { color:var(--muted); opacity:.72; }
    .tree-row.tree-question .node-copy strong,
    .tree-row.tree-option .node-copy strong,
    .tree-row.tree-tab .node-copy strong { color:var(--fg); font-weight:400; }
    .tree-row.active .node-copy strong,
    .tree-row.selected .node-copy strong { color:var(--accent); font-weight:400; }
    .tree-row.active .node-copy strong::before,
    .tree-row.selected .node-copy strong::before { color:var(--accent); }
    .tree-row.active.tree-tab .node-copy strong::after,
    .tree-row.selected.tree-tab .node-copy strong::after { background:var(--surface-warm); color:var(--accent); }
    .tree-row.active .tree-count,
    .tree-row.selected .tree-count { color:var(--accent); font-weight:400; }
    .tree-row.active .caret,
    .tree-row.selected .caret { color:var(--accent); }
    .panel-scroll > .tree-group > .tree-children .caret { opacity:.78; }
    .panel-scroll > .tree-group > .tree-children > .tree-group > .tree-children .caret { opacity:.62; }
    .panel-scroll > .tree-group > .tree-children > .tree-group > .tree-children > .tree-group > .tree-children .caret { opacity:.46; }

    .block { margin-bottom:var(--space-3); overflow:hidden; border:1px solid var(--border); border-radius:var(--radius-lg); background:var(--surface); }
    .block-head { display:flex; justify-content:space-between; gap:var(--space-3); padding:var(--space-3); border-bottom:1px solid var(--border); background:linear-gradient(180deg, var(--surface), var(--bg)); }
    .block-title { display:flex; gap:var(--space-3); align-items:flex-start; }
    .twisty { width:30px; height:30px; border:1px solid var(--border); border-radius:var(--radius-sm); background:var(--surface); color:var(--muted); }
    .question-list { display:grid; gap:var(--space-2); padding:var(--space-3); }
    .question { display:grid; grid-template-columns:26px minmax(0,1fr) auto; gap:var(--space-3); align-items:center; padding:var(--space-3); border:1px solid var(--border); border-radius:var(--radius-md); background:var(--surface); transition:background var(--motion-fast) var(--ease-standard), border-color var(--motion-fast) var(--ease-standard), transform var(--motion-fast) var(--ease-standard); }
    .question:hover, .question.selected { background:var(--surface-warm); border-color:color-mix(in oklab, var(--accent), var(--border) 62%); transform:translateY(-1px); }
    .drag { color:var(--muted); font:900 var(--text-base)/1 var(--font-mono); }
    .q-title { font-weight:800; }
    .q-meta { margin-top:var(--space-1); display:flex; flex-wrap:wrap; gap:var(--space-2); color:var(--muted); font-size:var(--text-xs); }
    .type { border-radius:var(--radius-sm); padding:3px 6px; background:var(--border-soft); font:800 10px/1 var(--font-mono); color:var(--muted); }
    .audio { min-height:32px; border:1px solid var(--border); border-radius:var(--radius-md); padding:0 var(--space-2); background:var(--surface); color:var(--muted); font-weight:750; }
    .audio.ready { color:var(--accent); background:var(--surface-warm); border-color:color-mix(in oklab, var(--accent), var(--border) 62%); }
    .audio.playing { color:var(--accent-on); background:var(--accent); border-color:var(--accent); }

    .detail-head { display:flex; align-items:center; min-height:42px; padding-block:7px; }
    .detail-path { display:flex; align-items:baseline; flex-wrap:wrap; gap:5px; color:var(--muted); font:500 var(--text-sm)/1.25 var(--font-body); }
    .detail-path a, .detail-path button { min-width:0; border:0; padding:0; background:transparent; color:inherit; font:inherit; text-align:left; cursor:pointer; text-decoration:none; }
    .detail-path a:hover, .detail-path a:focus-visible, .detail-path button:hover, .detail-path button:focus-visible { color:var(--accent); text-decoration:underline; outline:0; }
    .detail-path [aria-current="page"] { color:var(--fg); font-weight:750; letter-spacing:0; }
    .path-sep { opacity:.55; }
    .code-chip { display:inline-flex; align-items:center; min-height:24px; border:1px solid var(--border); border-radius:var(--radius-sm); background:var(--border-soft); color:var(--fg-2); padding:0 var(--space-2); font:750 11px/1 var(--font-mono); }
    .detail-body { flex:1 1 auto; display:grid; grid-template-rows:auto minmax(0, 1fr) auto; min-height:0; overflow:hidden; }
    .tabs { position:sticky; top:0; z-index:3; display:flex; gap:4px; overflow:auto; padding:6px 10px; border-bottom:1px solid var(--border); background:color-mix(in oklab, var(--surface), var(--bg) 10%); }
    .tab-btn { flex:0 0 auto; min-height:30px; border:1px solid transparent; border-radius:var(--radius-pill); background:transparent; color:var(--muted); padding:0 11px; font:800 12px/1 var(--font-body); letter-spacing:-.01em; transition:background var(--motion-fast) var(--ease-standard), border-color var(--motion-fast) var(--ease-standard), color var(--motion-fast) var(--ease-standard); }
    .tab-btn:hover { color:var(--fg); background:var(--border-soft); }
    .tab-btn.active { color:var(--accent); background:var(--surface-warm); border-color:color-mix(in oklab, var(--accent), var(--border) 72%); box-shadow:inset 0 0 0 1px color-mix(in oklab, var(--accent), var(--surface) 82%); }
    .tab-count { margin-left:2px; color:inherit; font:inherit; }
    .tab-btn.active .tab-count { color:inherit; }
    .tab-panels { min-height:0; overflow:auto; overscroll-behavior:contain; scrollbar-gutter:stable; background:var(--surface); }
    .tab-panel { display:none; padding:var(--space-4); background:var(--surface); }
    .tab-panel.active { display:block; min-height:100%; }
    .section-head { display:flex; justify-content:space-between; gap:var(--space-3); align-items:center; margin-bottom:var(--space-3); }
    .section-label { display:flex; align-items:center; gap:var(--space-2); color:var(--fg); font-weight:850; text-transform:uppercase; letter-spacing:.04em; font-size:var(--text-xs); }
    .mini-icon { width:22px; height:22px; display:grid; place-items:center; border-radius:var(--radius-sm); background:var(--surface-warm); color:var(--accent); font:900 10px/1 var(--font-mono); }
    .form-grid { display:grid; grid-template-columns:1fr 1fr; gap:var(--space-3); }
    .field { min-width:0; margin-bottom:var(--space-3); }
    .field label, .field-label { display:flex; justify-content:space-between; gap:var(--space-2); margin-bottom:var(--space-2); color:var(--fg-2); font-weight:800; font-size:var(--text-xs); }
    .tts-audio-label { align-items:center; }
    .tts-audio-label .tts-actions { margin-left:auto; }
    .field input, .field textarea, .field select { min-height:38px; padding:var(--space-2) var(--space-3); }
    .field textarea { min-height:86px; resize:vertical; }
    .choice-grid, .trigger-list, .option-table, .child-list, .dependencies { display:grid; gap:var(--space-2); }
    .questions-layout { display:block; }
    .questions-main { min-width:0; }
    .detail-mode-bar { display:none; align-items:center; justify-content:space-between; gap:var(--space-3); padding:10px var(--space-4); border-bottom:1px solid var(--border); background:linear-gradient(180deg, var(--surface), color-mix(in oklab, var(--surface), var(--bg) 18%)); }
    .detail-body.entity-question .detail-mode-bar,
    .detail-body.entity-option .detail-mode-bar { display:flex; }
    .detail-mode-copy { min-width:0; display:grid; gap:3px; }
    .detail-mode-kicker { color:var(--meta); font:850 10px/1 var(--font-mono); text-transform:uppercase; letter-spacing:.12em; }
    .detail-mode-title { overflow:hidden; text-overflow:ellipsis; white-space:nowrap; color:var(--fg); font:850 var(--text-sm)/1.2 var(--font-display); }
    .question-builder-list { display:grid; gap:var(--space-4); padding-left:38px; }
    .option-detail-panel { position:sticky; top:54px; min-height:420px; border:1px solid var(--border); border-radius:var(--radius-lg); background:linear-gradient(180deg, var(--surface), color-mix(in oklab, var(--surface), var(--bg) 18%)); box-shadow:0 1px 0 var(--surface) inset; overflow:hidden; }
    .option-detail-head { padding:var(--space-3); border-bottom:1px solid var(--border); }
    .option-detail-kicker { color:var(--meta); font:850 10px/1 var(--font-mono); text-transform:uppercase; letter-spacing:.12em; }
    .option-detail-title { margin-top:6px; color:var(--fg); font:850 var(--text-sm)/1.25 var(--font-display); }
    .option-detail-body { padding:var(--space-3); display:grid; gap:var(--space-3); }
    .option-detail-empty { min-height:360px; display:grid; place-items:center; padding:var(--space-4); color:var(--muted); text-align:center; font-size:var(--text-sm); }
    .option-detail-panel.has-selection .option-detail-empty { display:none; }
    .option-detail-panel:not(.has-selection) .option-detail-body { display:none; }
    .option-detail-actions { display:flex; gap:var(--space-2); flex-wrap:wrap; }
    .option-detail-section { display:grid; gap:var(--space-2); padding-top:var(--space-3); border-top:1px solid var(--border-soft); }
    .option-detail-section-title { color:var(--fg); font:850 var(--text-xs)/1 var(--font-body); text-transform:uppercase; letter-spacing:.04em; }
    .selected-option-path { color:var(--muted); font-size:var(--text-xs); }
    .question-builder-card { position:relative; border:1px solid var(--border); border-radius:var(--radius-md); background:var(--surface); padding:var(--space-2); }
    .question-builder-card.entity-active { border-color:color-mix(in oklab, var(--accent), var(--border) 56%); box-shadow:inset 3px 0 0 var(--accent); }
    .builder-option-row.entity-active { background:var(--surface-warm); box-shadow:inset 3px 0 0 var(--accent); }
    .detail-body.block-overview .question-builder-card { padding:10px 10px 8px; }
    .detail-body.block-overview .question-builder-head { margin-bottom:6px; }
    .detail-body.block-overview .question-builder-head textarea,
    .detail-body.block-overview .builder-option-row textarea { border-color:var(--border-soft); background:var(--surface); color:var(--fg); cursor:text; }
    .detail-body.block-overview .question-builder-head textarea:focus,
    .detail-body.block-overview .builder-option-row textarea:focus { border-color:color-mix(in oklab, var(--accent), var(--border) 58%); background:var(--surface); box-shadow:var(--focus-ring); }
    .detail-body.block-overview .builder-option-row textarea { color:var(--fg-2); font-weight:650; }
    .detail-body.block-overview .builder-option-actions,
    .detail-body.block-overview .option-tts-panel { display:none !important; }
    .detail-body.block-overview .builder-question-actions { display:flex; justify-content:flex-start; margin-top:4px; padding-left:28px; }
    .detail-body.block-overview .add-builder-option { min-height:30px; padding:0 10px; border-color:transparent; border-radius:var(--radius-md); background:transparent; color:var(--accent); font-size:12px; font-weight:750; gap:4px; }
    .detail-body.block-overview .add-builder-option::before { content:"add"; font-family:"Material Icons"; font-size:16px; font-weight:normal; line-height:1; }
    .detail-body.block-overview .add-builder-option:hover { background:var(--surface-warm); border-color:transparent; }
    .detail-body.block-overview .builder-options { gap:2px; padding-top:2px; }
    .detail-body.block-overview .builder-option-row { grid-template-columns:20px minmax(0,1fr); padding:3px 6px; border-radius:var(--radius-sm); }
    .detail-body.block-overview .builder-option-row:hover { background:color-mix(in oklab, var(--surface-warm), transparent 45%); }
    .detail-body.entity-question [data-question-card]:not(.entity-active),
    .detail-body.entity-option [data-question-card]:not(.entity-active) { display:none; }
    .detail-body.entity-option .question-builder-card.entity-active > .question-builder-head,
    .detail-body.entity-option .question-builder-card.entity-active > .question-builder-meta,
    .detail-body.entity-option .question-builder-card.entity-active > .builder-question-actions { display:none; }
    .detail-body.entity-option .question-builder-card.entity-active { box-shadow:none; border-color:var(--border); }
    .detail-body.entity-option .question-builder-card.entity-active > .builder-options > .builder-option-row:not(.entity-active) { display:none; }
    .detail-body.entity-option .builder-option-row.entity-active { grid-template-columns:20px minmax(0,1fr) auto; padding:var(--space-2); border:1px solid color-mix(in oklab, var(--accent), var(--border) 60%); border-radius:var(--radius-md); }
    .detail-body.entity-option .builder-option-row.entity-active .option-tts-panel { display:grid; }
    .question-builder-head { display:grid; grid-template-columns:minmax(0, 1fr) auto; gap:var(--space-2); align-items:center; margin-bottom:var(--space-2); }
    .question-builder-index { position:absolute; left:-38px; top:8px; width:30px; height:30px; display:grid; place-items:center; border:0; border-radius:0; background:transparent; color:var(--muted); box-shadow:none; font:850 11px/1 var(--font-mono); }
    .question-builder-head textarea { width:100%; min-height:32px; border:1px solid var(--border); border-radius:var(--radius-sm); background:var(--surface); color:var(--fg); padding:7px var(--space-2); font-weight:400; line-height:1.32; resize:none; overflow:hidden; }
    .question-builder-meta { display:grid; grid-template-columns:repeat(2, minmax(0, max-content)); justify-content:start; gap:6px; margin:-2px 0 var(--space-2) 0; }
    .question-builder-meta .field { min-width:0; display:inline-grid; grid-template-columns:auto minmax(116px, max-content); align-items:center; gap:0; margin-bottom:0; border:1px solid var(--border); border-radius:var(--radius-pill); background:var(--surface); overflow:hidden; box-shadow:0 1px 0 var(--border-soft); }
    .question-builder-meta .field label { height:26px; margin:0; padding:0 8px; display:inline-flex; align-items:center; border-right:1px solid var(--border-soft); background:var(--border-soft); color:var(--muted); font:850 10px/1 var(--font-mono); text-transform:uppercase; letter-spacing:.06em; white-space:nowrap; }
    .question-builder-meta .field select { width:auto; max-width:210px; min-height:26px; padding:0 26px 0 8px; border:0; border-radius:0; background:transparent; color:var(--fg); font-size:12px; font-weight:400; }
    .question-builder-meta .field:focus-within { border-color:color-mix(in oklab, var(--accent), var(--border) 55%); box-shadow:var(--focus-ring); }
    .question-builder-meta .field:focus-within label { background:var(--surface-warm); color:var(--accent); }
    .question-builder-meta .field:focus-within select { box-shadow:none; }
    .builder-options { display:grid; gap:6px; }
    .builder-option-row { position:relative; display:grid; grid-template-columns:20px auto minmax(0,1fr) auto; gap:var(--space-2); align-items:center; color:var(--muted); border-radius:var(--radius-sm); transition:background var(--motion-fast) var(--ease-standard); }
    .builder-option-row.has-option-tts { grid-template-columns:20px auto minmax(0,1fr) auto; }
    .builder-option-row.tts-open { align-items:start; }
    .builder-option-row:hover { background:color-mix(in oklab, var(--surface-warm), transparent 70%); }
    .builder-option-row input, .builder-option-row textarea { width:100%; min-width:0; min-height:30px; border:1px solid var(--border); border-radius:var(--radius-sm); background:var(--surface); color:var(--muted); padding:6px var(--space-2); line-height:1.32; }
    .builder-option-row .option-label-input { justify-self:stretch; width:100%; min-width:0; field-sizing:fixed; }
    .builder-option-row textarea.option-label-input { resize:none; overflow:hidden; }
    .inline-title-textarea { field-sizing: content; }
    .builder-option-row .inline-title-textarea { field-sizing:fixed; }
    .builder-option-row > .row-index { grid-column:1; }
    .builder-option-row > .play-option-tts { grid-column:2; display:inline-flex; align-self:center; }
    .builder-option-row > .option-label-input { grid-column:3; }
    .builder-option-row > .builder-option-actions { grid-column:4; }
    .builder-option-actions .generate-option-tts { display:none !important; }
    .option-tts-panel { display:none; grid-column:2 / -1; align-self:start; margin-top:6px; padding:12px; gap:var(--space-2); border:1px solid var(--border-soft); border-radius:var(--radius-md); background:color-mix(in oklab, var(--surface), var(--bg) 42%); box-shadow:none; color:var(--fg); }
    .builder-option-row.has-option-tts > .option-tts-panel { grid-column:3 / -1; }
    .builder-option-row.tts-open .option-tts-panel { display:grid; }
    .option-tts-panel .field label,
    .option-tts-content-field .field-label { color:var(--muted); }
    .option-tts-panel select,
    .option-tts-panel input,
    .option-tts-panel textarea { border-color:var(--border); background:var(--surface); color:var(--fg); }
    .option-tts-panel textarea { min-height:56px; padding:var(--space-2); resize:vertical; }
    .option-tts-panel select:focus,
    .option-tts-panel input:focus,
    .option-tts-panel textarea:focus { border-color:color-mix(in oklab, var(--accent), var(--border) 45%); box-shadow:var(--focus-ring); }
    .option-child-tools { display:grid; grid-template-columns:minmax(0, 1fr) auto; gap:var(--space-2); align-items:center; padding-top:var(--space-2); border-top:1px solid var(--border); }
    .option-child-title { display:grid; gap:2px; color:var(--fg); font:800 12px/1.2 var(--font-body); }
    .option-child-title small { color:var(--muted); font:500 11px/1.25 var(--font-body); }
    .option-child-list { grid-column:2 / -1; display:grid; gap:var(--space-2); margin-top:2px; padding-left:12px; border-left:2px solid var(--border-soft); }
    .builder-option-row.has-option-tts > .option-child-list { grid-column:3 / -1; }
    .option-child-list:empty { display:none; }
    .option-child-lines { grid-column:2 / -1; display:grid; gap:4px; margin-top:2px; padding-left:0; }
    .builder-option-row.has-option-tts > .option-child-lines { grid-column:3 / -1; }
    .option-child-lines:empty { display:none; }
    .option-child-line { min-height:26px; display:grid; grid-template-columns:18px 18px minmax(0,1fr); gap:6px; align-items:center; padding:3px 6px 3px 0; color:var(--fg-2); font-size:12px; line-height:1.25; border-radius:var(--radius-sm); cursor:pointer; transition:background var(--motion-fast) var(--ease-standard), color var(--motion-fast) var(--ease-standard); }
    .option-child-line:hover { background:var(--surface-warm); color:var(--accent); }
    .option-child-line:focus-visible { outline:0; box-shadow:var(--focus-ring); }
    .option-child-line::before { content:"subdirectory_arrow_right"; font-family:"Material Icons"; color:var(--muted); font-size:16px; line-height:1; }
    .option-child-line-type-icon { width:18px; height:18px; display:grid; place-items:center; color:var(--muted); font-family:"Material Icons"; font-size:16px; line-height:1; font-weight:400; }
    .option-child-line-title { overflow:hidden; text-overflow:ellipsis; white-space:nowrap; color:var(--fg); }
    .option-child-line:hover .option-child-line-title { color:var(--accent); }
    .option-tts-panel > .option-child-list { grid-column:auto; margin-top:0; padding-left:0; border-left:0; }
    .question-child-section { display:grid; gap:var(--space-2); margin-top:var(--space-3); padding-top:var(--space-3); border-top:1px solid var(--border-soft); }
    .question-child-section-title { color:var(--muted); font:850 11px/1 var(--font-mono); letter-spacing:.06em; text-transform:uppercase; }
    .question-child-list { display:grid; gap:var(--space-2); }
    .question-child-list:empty::before { content:"Chưa có câu hỏi con"; display:block; padding:9px 10px; border:1px dashed var(--border); border-radius:var(--radius-sm); background:var(--surface); color:var(--muted); font-size:12px; }
    .child-question-card { display:grid; gap:var(--space-2); padding:10px; border:1px solid var(--border-soft); border-radius:var(--radius-md); background:var(--surface); }
    .child-question-head { display:grid; grid-template-columns:auto minmax(0, 1fr) auto; gap:var(--space-2); align-items:center; }
    .child-question-index { color:var(--fg-2); font:850 11px/1 var(--font-mono); }
    .child-question-head textarea { width:100%; min-height:30px; border:1px solid var(--border); border-radius:var(--radius-sm); background:var(--surface); color:var(--fg); padding:6px var(--space-2); font-weight:400; line-height:1.32; resize:none; overflow:hidden; }
    .child-question-meta { display:grid; grid-template-columns:repeat(2, minmax(0, max-content)); justify-content:start; gap:6px; }
    .child-question-meta .field { min-width:0; display:inline-grid; grid-template-columns:auto minmax(112px, max-content); align-items:center; gap:0; margin-bottom:0; border:1px solid var(--border); border-radius:var(--radius-pill); background:var(--surface); overflow:hidden; }
    .child-question-meta .field label { height:26px; margin:0; padding:0 8px; display:inline-flex; align-items:center; border-right:1px solid var(--border-soft); background:var(--border-soft); color:var(--muted); font:850 10px/1 var(--font-mono); text-transform:uppercase; letter-spacing:.06em; white-space:nowrap; }
    .child-question-meta .field select,
    .child-question-meta .field input { width:auto; max-width:220px; min-height:26px; padding:0 8px; border:0; border-radius:0; background:transparent; color:var(--fg); font-size:12px; font-weight:400; }
    .child-question-options { display:grid; gap:6px; }
    .child-question-actions { display:flex; justify-content:flex-start; gap:var(--space-2); }
    .option-tts-meta { width:100%; display:grid; grid-template-columns:1fr; gap:var(--space-2); align-items:start; }
    .option-tts-meta .field { margin-bottom:0; }
    .option-tts-meta .field > label,
    .option-tts-content-field .field-label { min-height:auto; align-items:center; margin-bottom:6px; }
    .option-tts-tools { display:flex; justify-content:flex-start; gap:var(--space-2); flex-wrap:wrap; }
    .child-question-card .builder-option-row { grid-template-columns:18px minmax(0, 1fr); align-items:start; }
    .child-question-card .builder-option-actions { grid-column:2; justify-content:flex-start; }
    .child-question-card .option-tts-panel { grid-column:2; }
    .play-option-tts { min-height:28px; padding:0 var(--space-2); border-radius:var(--radius-sm); font-size:11px; gap:6px; }
    .play-option-tts .material-icons { font-size:15px; }
    .option-tts-label { font-size:11px; font-weight:750; line-height:1; }
    .play-option-tts .option-tts-play-icon + .option-tts-label { margin-left:1px; padding-left:7px; border-left:1px solid var(--border-soft); }
    .play-option-tts:hover .option-tts-play-icon + .option-tts-label { border-left-color:color-mix(in oklab, var(--accent), var(--border) 74%); }
    .play-option-tts .option-tts-label { cursor:pointer; }
    .builder-option-actions { display:flex; align-items:center; gap:var(--space-2); }
    .builder-option-actions .btn { min-height:32px; padding:0 10px; font-size:var(--text-xs); }
    .add-child-question,
    .child-question-actions .add-builder-option { min-height:30px; padding:0 10px; border-color:transparent; border-radius:var(--radius-md); background:transparent; color:var(--accent); font-size:12px; font-weight:750; }
    .add-child-question:hover,
    .child-question-actions .add-builder-option:hover { background:var(--surface-warm); border-color:transparent; }
    .builder-option-actions .add-child-question { min-height:32px; }
    .builder-option-row .icon-btn { width:28px; height:28px; font-size:0; line-height:1; }
    .builder-option-row .icon-btn.delete-builder-option { width:32px; height:32px; border-radius:var(--radius-md); }
    .builder-option-row .icon-btn::before { content:none; }
    .builder-option-row .icon-btn .material-icons { display:block; font-size:16px; line-height:1; }
    .builder-question-actions { display:flex; justify-content:flex-end; margin-top:var(--space-2); }
    .text-answer-preview { grid-column:1 / -1; display:grid; grid-template-columns:24px minmax(0, 1fr); gap:var(--space-2); align-items:start; margin-top:var(--space-2); padding:10px 12px; border:1px dashed var(--border); border-radius:var(--radius-md); background:color-mix(in oklab, var(--surface), var(--bg) 30%); color:var(--fg-2); }
    .text-answer-preview[hidden] { display:none !important; }
    .text-answer-preview .material-icons { color:var(--muted); font-size:18px; line-height:1.2; }
    .text-answer-preview strong { display:block; color:var(--fg); font-size:12px; font-weight:750; }
    .text-answer-preview small { display:block; margin-top:2px; color:var(--muted); font-size:11px; line-height:1.35; }
    .question-builder-card.question-type-text > .builder-options,
    .question-builder-card.question-type-text > .builder-question-actions,
    .child-question-card.question-type-text > .child-question-options,
    .child-question-card.question-type-text > .child-question-actions { display:none !important; }
    .choice-card, .trigger-row, .dep, .label-card { border:1px solid var(--border); border-radius:var(--radius-md); background:var(--border-soft); padding:var(--space-3); }
    .choice-grid { grid-template-columns:1fr 1fr; }
    .label-card { display:grid; grid-template-columns:18px 1fr; gap:var(--space-2); align-items:start; }
    .label-card input, .trigger-row input { accent-color:var(--accent); }
    .label-card strong { display:block; }
    .label-card span, .choice-card span { color:var(--muted); font-size:var(--text-xs); }
    .trigger-row { display:grid; grid-template-columns:18px 1fr auto; gap:var(--space-2); align-items:center; }
    .trigger-row.active { background:var(--surface-warm); border-color:color-mix(in oklab, var(--accent), var(--border) 62%); }
    .option-row { display:grid; grid-template-columns:24px minmax(0,1.2fr) minmax(0,1fr) auto; gap:var(--space-2); align-items:center; padding:var(--space-2); border:1px solid var(--border); border-radius:var(--radius-md); background:var(--border-soft); color:var(--muted); }
    .option-row input { color:var(--muted); }
    .row-index { color:var(--muted); font:850 var(--text-xs)/1 var(--font-mono); }
    .builder-option-row > .row-index { min-height:30px; display:flex; align-items:center; justify-content:center; align-self:start; }
    .tts-list { display:grid; gap:var(--space-2); padding-left:38px; }
    .tts-toolbar { display:flex; justify-content:flex-end; margin-top:var(--space-2); }
    .tts-box { position:relative; border:1px solid var(--border); border-radius:var(--radius-md); padding:var(--space-2); background:var(--surface); }
    .tts-box.active { border-color:var(--border); background:var(--surface); }
    .tts-head { display:block; min-height:0; margin:0; }
    .tts-title { display:flex; align-items:center; gap:var(--space-2); min-width:0; }
    .tts-title strong { overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
    .tts-index { position:absolute; left:-38px; top:8px; width:30px; height:30px; display:grid; place-items:center; border:0; border-radius:0; background:transparent; color:var(--muted); box-shadow:none; font:850 11px/1 var(--font-mono); }
    .tts-actions { display:flex; justify-content:flex-start; gap:var(--space-2); align-items:center; flex-wrap:wrap; margin-top:var(--space-2); }
    .tts-actions .btn { font-size:14px; }
    .intro-media-switch { display:flex; align-items:center; justify-content:flex-end; gap:var(--space-2); margin:0 0 var(--space-2); }
    .intro-media-global { position:sticky; top:10px; z-index:5; margin:-4px 0 var(--space-3); padding:0; border:0; border-radius:0; background:transparent; pointer-events:none; }
    .intro-media-label { display:none; }
    .intro-media-segment { pointer-events:auto; display:inline-flex; align-items:center; gap:2px; padding:2px; border:1px solid var(--border); border-radius:var(--radius-pill); background:color-mix(in oklab, var(--surface), transparent 4%); box-shadow:0 10px 24px rgba(23, 32, 51, 0.10); backdrop-filter:blur(12px); }
    .intro-media-option { min-height:26px; border:0; border-radius:var(--radius-pill); padding:0 10px; background:transparent; color:var(--muted); font:800 12px/1 var(--font-body); transition:background var(--motion-fast) var(--ease-standard), color var(--motion-fast) var(--ease-standard); }
    .intro-media-option:hover { background:var(--border-soft); color:var(--fg); }
    .intro-media-option.active { background:var(--surface); color:var(--accent); box-shadow:var(--elev-ring); }
    .intro-video-panel { display:none; margin-bottom:var(--space-2); padding:var(--space-3); border:1px solid var(--border-soft); border-radius:var(--radius-md); background:color-mix(in oklab, var(--surface), var(--bg) 24%); }
    .intro-mode-video > .field { display:none; }
    .intro-mode-video .tts-meta-row { grid-template-columns:1fr; }
    .intro-mode-video .tts-meta-row > .field:first-child { display:none; }
    .intro-mode-video .intro-video-panel { display:grid; gap:var(--space-3); }
    .intro-mode-video .play-tts,
    .intro-mode-video .generate-tts { display:none; }
    .intro-mode-audio .intro-video-panel { display:none; }
    .intro-video-upload-row { display:flex; align-items:center; flex-wrap:wrap; gap:var(--space-2); }
    .intro-video-upload .material-icons { font-size:16px; }
    .intro-video-file-name { color:var(--muted); font-size:var(--text-xs); }
    .intro-video-preview[hidden] { display:none !important; }
    .intro-video-frame { min-height:150px; display:grid; place-items:center; text-align:center; gap:3px; border:1px solid var(--border); border-radius:var(--radius-md); background:linear-gradient(135deg, color-mix(in oklab, var(--fg), transparent 8%), color-mix(in oklab, var(--fg-2), var(--accent) 18%)); color:var(--surface); overflow:hidden; }
    .intro-video-frame .material-icons { font-size:38px; color:var(--surface); opacity:.92; }
    .intro-video-frame strong { font-size:13px; font-weight:800; }
    .intro-video-frame small { color:color-mix(in oklab, var(--surface), transparent 28%); font-size:11px; }
    .play-tts, .play-option-tts { position:relative; height:32px; min-height:32px; border:1px solid var(--border); border-radius:var(--radius-md); background:var(--surface); color:var(--fg); box-shadow:none; place-items:center; overflow:visible; transition:border-color var(--motion-fast) var(--ease-standard), background var(--motion-fast) var(--ease-standard), color var(--motion-fast) var(--ease-standard); }
    .play-tts { width:32px; padding:0; display:inline-grid; }
    .play-option-tts { width:auto; min-width:32px; padding:0 8px; display:inline-flex; align-items:center; justify-content:center; gap:5px; }
    .play-tts:hover, .play-option-tts:hover { border-color:color-mix(in oklab, var(--accent), var(--border) 72%); background:var(--surface); color:var(--accent); }
    .play-tts:focus-visible, .play-option-tts:focus-visible { outline:0; box-shadow:var(--focus-ring); }
    .play-tts .material-icons, .play-option-tts .material-icons { position:static; font-size:18px; line-height:1; }
    .play-tts .play-label { display:none; }
    .tts-box.playing .play-tts, .play-tts.is-playing, .play-option-tts.btn-primary { border-color:color-mix(in oklab, var(--accent), var(--border) 62%); color:var(--accent); background:var(--surface-warm); }
    .tts-meta-row { display:grid; grid-template-columns:minmax(160px, .34fr) minmax(260px, 1fr) 96px; gap:var(--space-2); align-items:start; }
    .audio-blink-duration input { width:100%; min-height:38px; }
    .tts-box .field { margin-bottom:var(--space-2); }
    .tts-box .field textarea { min-height:64px; }
    .blink-preview { min-height:34px; display:flex; align-items:center; padding:var(--space-2) var(--space-3); border:1px dashed var(--border); border-radius:var(--radius-md); background:var(--border-soft); color:var(--fg-2); font-size:var(--text-xs); }
    .blink-preview.is-blinking { animation:blinkContent 1.1s var(--ease-standard) infinite; }
    @keyframes blinkContent { 50% { background:var(--surface-warm); border-color:color-mix(in oklab, var(--accent), var(--border) 55%); color:var(--accent); } }
    .dep { display:grid; grid-template-columns:20px 1fr; gap:var(--space-2); color:var(--muted); }
    .dep.ok { background:color-mix(in oklab, var(--success), var(--surface) 92%); color:var(--success); border-color:color-mix(in oklab, var(--success), var(--border) 72%); }
    .footer-actions { margin-top:auto; padding:var(--space-2) var(--space-4) var(--space-3); border-top:0; background:var(--surface); justify-content:flex-end; }
    .detail-body.no-footer-actions .footer-actions { display:none; }
    .right { display:flex; gap:var(--space-2); justify-content:flex-end; flex-wrap:wrap; }
    .tab-action { justify-content:flex-end; margin-bottom:var(--space-2); }
    .hidden { display:none !important; }
    .option-tts-modal { position:fixed; inset:0; z-index:70; display:none; place-items:center; padding:var(--space-5); }
    .option-tts-modal.is-open { display:grid; }
    .option-tts-backdrop { position:absolute; inset:0; background:rgba(23, 32, 51, 0.34); backdrop-filter:blur(6px); }
    .option-tts-dialog { position:relative; width:min(560px, calc(100vw - 32px)); overflow:hidden; border:1px solid var(--border); border-radius:var(--radius-lg); background:var(--surface); box-shadow:var(--elev-raised); }
    .option-tts-dialog-head { display:flex; justify-content:space-between; align-items:flex-start; gap:var(--space-3); padding:var(--space-4); border-bottom:1px solid var(--border-soft); background:linear-gradient(180deg, var(--surface), color-mix(in oklab, var(--surface), var(--bg) 26%)); }
    .option-tts-dialog-head h2 { margin:0; font-size:var(--text-xl); }
    .option-tts-dialog-head p { margin:6px 0 0; color:var(--muted); font-size:var(--text-sm); }
    .option-tts-close { flex:0 0 32px; border-color:transparent; background:transparent; }
    .option-tts-dialog-body { padding:var(--space-4); }
    .option-tts-dialog-body .field:last-child { margin-bottom:0; }
    .option-tts-dialog-body textarea { min-height:112px; resize:vertical; }
    .option-tts-dialog-actions { display:flex; justify-content:flex-end; align-items:center; gap:var(--space-2); padding:var(--space-3) var(--space-4); border-top:1px solid var(--border-soft); background:color-mix(in oklab, var(--surface), var(--bg) 18%); }
    .option-tts-dialog-actions .material-icons { font-size:16px; }
    .option-tts-dialog-actions .option-tts-delete { margin-right:auto; width:32px; min-width:32px; height:32px; padding:0; border-color:transparent; background:transparent; color:var(--danger); }
    .option-tts-dialog-actions .option-tts-delete:hover { background:color-mix(in oklab, var(--danger), transparent 92%); border-color:transparent; }
    body.option-tts-modal-open { overflow:hidden; }
    .toast { position:fixed; right:var(--space-6); bottom:var(--space-6); z-index:80; max-width:360px; padding:var(--space-3) var(--space-4); border-radius:var(--radius-md); background:var(--fg); color:var(--surface); box-shadow:var(--elev-raised); transform:translateY(18px); opacity:0; pointer-events:none; transition:transform var(--motion-base) var(--ease-standard), opacity var(--motion-base) var(--ease-standard); }
    .toast.show { transform:translateY(0); opacity:1; }
    .mobilebar { display:none; }

    @media (max-width: 1360px) {
      .workspace { grid-template-columns:260px minmax(480px,1fr); }
    }
    @media (max-width: 980px) {
      .app-shell { grid-template-columns:1fr; }
      .sidebar { display:none; }
      .topbar { align-items:flex-start; flex-direction:column; }
      .workspace { grid-template-columns:1fr; padding:var(--space-3); }
      .panel, .inspector { grid-column:auto; height:auto; min-height:auto; }
      .form-grid, .choice-grid, .tts-meta-row { grid-template-columns:1fr; }
      .option-row { grid-template-columns:24px minmax(0,1fr); }
      .option-row .mini-actions { grid-column:2; }
      .questions-layout { grid-template-columns:1fr; }
      .option-detail-panel { position:relative; top:auto; }
      .detail-mode-bar { align-items:flex-start; flex-direction:column; }
      .detail-body.block-overview .questions-main::before { margin-left:34px; }
      .question-builder-list, .tts-list { padding-left:34px; }
      .question-builder-index, .tts-index { left:-34px; }
      .question-builder-card > .question-builder-head .delete-question { left:-34px; }
      .question-builder-meta { grid-template-columns:1fr; margin-left:0; }
      .question-builder-meta .field { grid-template-columns:72px minmax(0, 1fr); }
      .question-builder-meta .field select { width:100%; max-width:none; }
      .builder-option-row,
      .builder-option-row.has-option-tts { grid-template-columns:20px auto minmax(0,1fr); }
      .builder-option-row > .option-label-input,
      .builder-option-row.has-option-tts > .option-label-input { grid-column:3; }
      .builder-option-row > .builder-option-actions,
      .builder-option-row.has-option-tts > .builder-option-actions { grid-column:3; grid-row:2; justify-self:start; }
      .option-tts-panel { grid-column:1 / -1; }
      .option-child-list { grid-column:1 / -1; }
      .option-tts-meta { grid-template-columns:1fr; }
      .child-question-head { grid-template-columns:auto minmax(0, 1fr) auto; }
      .child-question-meta { grid-template-columns:1fr; }
      .child-question-meta .field { grid-template-columns:76px minmax(0, 1fr); }
      .child-question-meta .field select,
      .child-question-meta .field input { width:100%; max-width:none; }
      .mobilebar { display:flex; position:sticky; bottom:0; z-index:30; gap:var(--space-2); padding:var(--space-2); border-top:1px solid var(--border); background:var(--surface); }
      .mobilebar .btn { flex:1; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { animation-duration:.01ms !important; animation-iteration-count:1 !important; transition-duration:.01ms !important; scroll-behavior:auto !important; }
    }

/* Separate detail page */
.detail-page-main { grid-template-rows:auto 1fr; }
.detail-page-shell { min-height:0; padding:var(--space-3); display:grid; grid-template-columns:280px minmax(0, 1fr); gap:var(--space-3); }
.detail-context-card { min-height:0; align-self:start; position:sticky; top:68px; border:1px solid var(--border); border-radius:var(--radius-lg); background:var(--surface); padding:var(--space-4); box-shadow:0 1px 0 var(--surface) inset; }
.detail-context-card h2 { margin:var(--space-2) 0 var(--space-1); font-size:var(--text-xl); }
.context-stack { display:grid; gap:var(--space-2); margin-top:var(--space-4); }
.context-stack div { display:grid; gap:3px; padding:var(--space-3); border:1px solid var(--border-soft); border-radius:var(--radius-md); background:color-mix(in oklab, var(--surface), var(--bg) 28%); }
.context-stack span { color:var(--muted); font-size:var(--text-xs); font-weight:750; }
.context-stack strong { color:var(--fg); font-size:var(--text-sm); font-weight:750; }
.detail-page-panel { min-height:calc(100dvh - 78px); }
.detail-page-panels { min-height:0; overflow:auto; }
.detail-question-list { padding-left:0; }
.static-path a { color:var(--muted); text-decoration:none; }
.static-path a:hover { color:var(--accent); text-decoration:underline; }
@media (max-width: 980px) {
  .detail-page-shell { grid-template-columns:1fr; }
  .detail-context-card { position:static; }
}

/* Question detail page mirrors index layout; only the inspector block changes. */
.question-detail-workspace { grid-template-columns:minmax(238px, 300px) minmax(560px, 1fr); }
.question-detail-panel { min-height:calc(100dvh - 76px); }
.question-detail-body { display:grid; grid-template-rows:auto minmax(0, 1fr) auto; min-height:0; }
.question-detail-titlebar { display:flex; }
.question-detail-panels { min-height:0; overflow:auto; }
.question-detail-body .tab-panel { min-height:100%; }
.question-basic-row { display:grid; grid-template-columns:minmax(0, 1fr) minmax(220px, 280px); gap:var(--space-3); align-items:start; }
.question-content-field textarea#entityName { min-height:118px; font-weight:400; }
.question-type-field select { min-height:42px; font-weight:400; }
.compact-form-grid { max-width:760px; }
.tab-btn.is-disabled,
.tab-btn:disabled { opacity:.45; cursor:not-allowed; background:transparent; border-color:transparent; color:var(--muted); box-shadow:none; }
.option-section-head { align-items:center; }
.option-count { display:inline-grid; place-items:center; min-width:22px; height:22px; padding:0 7px; border:1px solid color-mix(in oklab, var(--accent), var(--border) 72%); border-radius:var(--radius-pill); background:var(--surface-warm); color:var(--accent); font:850 11px/1 var(--font-mono); }
.option-list-shell { overflow:hidden; border:1px solid var(--border); border-radius:var(--radius-lg); background:var(--surface); }
.option-table-head { display:grid; grid-template-columns:42px minmax(0,1.18fr) minmax(220px,.82fr) 40px; gap:var(--space-2); align-items:center; min-height:38px; padding:0 10px; border-bottom:1px solid var(--border-soft); background:color-mix(in oklab, var(--surface), var(--bg) 34%); color:var(--muted); font:800 11px/1 var(--font-body); text-transform:uppercase; letter-spacing:.06em; }
.detail-option-table { gap:0; }
.detail-option-table .option-row { grid-template-columns:42px minmax(0,1.18fr) minmax(220px,.82fr) 40px; gap:var(--space-2); min-height:58px; padding:10px; border:0; border-bottom:1px solid var(--border-soft); border-radius:0; background:var(--surface); color:var(--fg); }
.detail-option-table .option-row:last-child { border-bottom:0; }
.detail-option-table .option-row:hover { background:color-mix(in oklab, var(--surface-warm), transparent 62%); }
.detail-option-table .row-index { width:26px; height:26px; display:grid; place-items:center; border-radius:var(--radius-sm); background:var(--border-soft); color:var(--fg-2); font:850 12px/1 var(--font-mono); }
.detail-option-table .option-row input { min-height:38px; border-radius:var(--radius-sm); background:var(--surface); color:var(--fg); font-weight:650; }
.detail-option-table .option-row input:nth-of-type(2) { color:var(--muted); font-weight:500; }
.detail-option-table .option-row input:focus { border-color:color-mix(in oklab, var(--accent), var(--border) 45%); box-shadow:var(--focus-ring); }
.detail-option-table .btn-danger { width:34px; height:34px; padding:0; border-radius:var(--radius-sm); align-self:center; }
.detail-child-question-list { display:grid; gap:var(--space-2); }
.detail-child-question-row { display:grid; grid-template-columns:34px minmax(0,1fr) minmax(210px,280px) 40px; gap:var(--space-2); align-items:end; padding:10px; border:1px solid var(--border); border-radius:var(--radius-md); background:var(--surface); }
.detail-child-question-row:hover { background:color-mix(in oklab, var(--surface-warm), transparent 68%); }
.detail-child-question-row .field { margin-bottom:0; }
.detail-child-question-row .row-index { width:26px; height:38px; display:grid; place-items:center; color:var(--muted); font:850 12px/1 var(--font-mono); }
.detail-child-question-row input,
.detail-child-question-row select { min-height:38px; font-weight:650; }
.detail-child-question-row .btn-danger { width:34px; height:34px; padding:0; border-radius:var(--radius-sm); align-self:end; }
.static-path [aria-current="page"] { color:var(--fg); font-weight:750; }
@media (max-width: 980px) {
  .question-detail-workspace { grid-template-columns:1fr; }
  .question-basic-row { grid-template-columns:1fr; }
  .option-table-head { display:none; }
  .detail-option-table .option-row { grid-template-columns:30px minmax(0,1fr) 36px; }
  .detail-option-table .option-row input:nth-of-type(2) { grid-column:2 / 4; }
  .detail-option-table .option-row .btn { grid-column:3; grid-row:1; }
  .detail-child-question-row { grid-template-columns:30px minmax(0,1fr) 36px; align-items:start; }
  .detail-child-question-row .field:nth-of-type(2) { grid-column:2 / 4; }
  .detail-child-question-row .btn { grid-column:3; grid-row:1; }
}

/* Index question tab compact editing styles */
.detail-body.block-overview .question-builder-list {
  gap:8px;
}
.detail-body.block-overview .question-builder-card {
  cursor:default;
  padding:8px 10px;
}
.detail-body.block-overview .question-builder-card:hover {
  border-color:var(--border);
  background:var(--surface);
}
.detail-body.block-overview .builder-option-row:hover {
  border-color:transparent;
  background:transparent;
}
.detail-body.block-overview .question-builder-head textarea,
.detail-body.block-overview .option-label-input {
  border:1px solid var(--border-soft);
  background:var(--surface);
  padding:5px 7px;
  min-height:30px;
  box-shadow:none;
  cursor:text;
}
.detail-body.block-overview .question-builder-head textarea:focus,
.detail-body.block-overview .option-label-input:focus {
  border-color:color-mix(in oklab, var(--accent), var(--border) 58%);
  border-radius:var(--radius-sm);
  background:var(--surface);
  color:var(--fg);
  box-shadow:var(--focus-ring);
}
.detail-body.block-overview .question-builder-head textarea { font-weight:400; }
.detail-body.block-overview .builder-option-actions,
.detail-body.block-overview .option-tts-panel,
.detail-body.block-overview .question-builder-meta .field:nth-child(n + 2) {
  display:none;
}
.detail-body.block-overview .builder-question-actions {
  grid-column:1 / -1;
  display:flex;
  justify-content:flex-start;
  margin-top:6px;
}
.detail-body.block-overview .builder-question-actions .add-builder-option {
  min-height:30px;
  padding:0 10px;
  border-color:transparent;
  border-radius:var(--radius-md);
  background:transparent;
  color:var(--accent);
  font-size:12px;
  font-weight:750;
  gap:4px;
}
.detail-body.block-overview .builder-question-actions .add-builder-option:hover {
  background:var(--surface-warm);
  border-color:transparent;
}
.detail-body.block-overview .question-builder-card {
  display:grid;
  grid-template-columns:minmax(0, 1fr) minmax(104px, 132px);
  column-gap:var(--space-2);
  align-items:start;
}
.detail-body.block-overview .question-builder-head {
  grid-column:1;
  min-width:0;
}
.detail-body.block-overview .question-builder-meta {
  grid-column:2;
  display:block;
  margin:0;
}
.detail-body.block-overview .question-builder-meta .field {
  display:block;
  width:100%;
  border:0;
  border-radius:0;
  background:transparent;
  box-shadow:none;
}
.detail-body.block-overview .question-builder-meta .field select {
  width:100%;
  max-width:132px;
  min-height:24px;
  padding:0 18px 0 0;
  border:0;
  background:transparent;
  color:var(--muted);
  font-size:11px;
  font-weight:600;
}
.detail-body.block-overview .question-builder-meta .field label {
  display:none;
}
.detail-body.block-overview .question-builder-meta .field:focus-within {
  border-color:transparent;
  box-shadow:none;
}
.detail-body.block-overview .question-builder-meta .field:focus-within select {
  color:var(--accent);
  box-shadow:none;
}
.detail-body.block-overview .builder-options { grid-column:1 / -1; margin-top:4px; gap:1px; }
.detail-body.block-overview .text-answer-preview {
  margin-top:var(--space-1);
  padding:7px 9px;
  border-style:solid;
  background:var(--surface);
}
.detail-body.block-overview .text-answer-preview small { display:none; }
.detail-body.block-overview .builder-option-row {
  cursor:default;
  grid-template-columns:20px auto minmax(0, 1fr) auto;
  padding:3px 2px;
  border:0;
  border-radius:var(--radius-sm);
  background:transparent;
}
.detail-body.block-overview .builder-option-row.has-option-tts {
  grid-template-columns:20px auto minmax(0, 1fr) auto;
}
.detail-body.block-overview .builder-option-row > .row-index { grid-column:1; }
.detail-body.block-overview .builder-option-row > .play-option-tts { grid-column:2; }
.detail-body.block-overview .builder-option-row > .option-label-input,
.detail-body.block-overview .builder-option-row.has-option-tts > .option-label-input { grid-column:3; }
.detail-body.block-overview .builder-option-row .builder-option-actions {
  grid-column:4;
  display:flex !important;
  align-items:center;
  gap:var(--space-1);
}
.detail-body.block-overview .builder-option-row .generate-option-tts {
  display:none !important;
}
.detail-body.block-overview .builder-option-row > .play-option-tts,
.detail-body.block-overview .builder-option-row.has-option-tts > .play-option-tts {
  grid-column:2;
  display:inline-flex !important;
  width:auto;
  min-width:30px;
  height:28px;
  min-height:28px;
  border-radius:var(--radius-md);
  align-self:center;
}
.detail-body.block-overview .builder-option-row .delete-builder-option {
  width:28px;
  height:28px;
  min-height:28px;
  padding:0;
  border-radius:var(--radius-md);
}

/* Keep the per-question add-option control visible in the compact outline. */
.detail-body.block-overview .question-builder-card:not(.question-type-text) > .builder-question-actions {
  grid-column:1 / -1;
  display:flex !important;
  justify-content:flex-start;
  margin-top:8px;
  padding-left:28px;
}
.detail-body.block-overview .question-builder-card:not(.question-type-text) > .builder-question-actions .add-builder-option {
  min-height:30px;
  padding:0 10px;
  border:1px solid transparent;
  border-radius:var(--radius-md);
  background:transparent;
  color:var(--accent);
  font-size:12px;
  font-weight:750;
  gap:4px;
  transition:background var(--motion-fast) var(--ease-standard), color var(--motion-fast) var(--ease-standard), box-shadow var(--motion-fast) var(--ease-standard);
}
.detail-body.block-overview .question-builder-card:not(.question-type-text) > .builder-question-actions .add-builder-option:hover {
  background:var(--surface-warm);
  border-color:transparent;
  color:var(--accent);
  box-shadow:none;
}
.detail-body.block-overview .question-builder-card:not(.question-type-text) > .builder-question-actions .add-builder-option:focus-visible {
  outline:0;
  box-shadow:var(--focus-ring);
}

/* Header workflow navigation */
.header-nav {
  display:inline-flex;
  align-items:center;
  gap:4px;
  padding:3px;
  border:1px solid var(--border);
  border-radius:var(--radius-pill);
  background:color-mix(in oklab, var(--surface), var(--bg) 20%);
}
.header-nav-item {
  min-height:30px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:0 12px;
  border-radius:var(--radius-pill);
  color:var(--muted);
  text-decoration:none;
  font-size:12px;
  font-weight:800;
  transition:background var(--motion-fast) var(--ease-standard), color var(--motion-fast) var(--ease-standard);
}
.header-nav-item:hover { color:var(--fg); background:var(--border-soft); }
.header-nav-item.active { color:var(--accent); background:var(--surface-warm); box-shadow:inset 0 0 0 1px color-mix(in oklab, var(--accent), var(--surface) 82%); }

/* Branching page */
.branching-workspace { grid-template-columns:minmax(238px, 300px) minmax(640px, 1fr); }
.branching-panel { min-height:calc(100dvh - 76px); }
.branching-body { min-height:0; overflow:auto; padding:var(--space-4); background:var(--surface); }
.branching-grid { display:grid; grid-template-columns:minmax(0, 1fr); gap:var(--space-4); align-items:start; }
.rule-editor-card {
  overflow:hidden;
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  background:var(--surface);
  box-shadow:0 1px 0 var(--surface) inset;
}
.rule-editor-head {
  display:flex;
  justify-content:space-between;
  gap:var(--space-3);
  align-items:flex-start;
  padding:var(--space-4);
  border-bottom:1px solid var(--border-soft);
  background:linear-gradient(180deg, var(--surface), color-mix(in oklab, var(--surface), var(--bg) 24%));
}
.rule-editor-head h2 { margin:5px 0 0; font-size:var(--text-xl); max-width:760px; }
.rule-section { display:grid; grid-template-columns:52px minmax(0, 1fr); gap:var(--space-3); padding:var(--space-4); }
.rule-label { color:var(--accent); font:900 12px/38px var(--font-mono); letter-spacing:.12em; }
.condition-list { display:grid; gap:var(--space-2); }
.condition-row,
.action-row {
  display:grid;
  grid-template-columns:minmax(220px, 1.15fr) 18px minmax(116px, .45fr) 18px minmax(190px, .8fr) 34px;
  gap:var(--space-2);
  align-items:center;
}
.action-row { grid-template-columns:minmax(190px,.62fr) 18px minmax(260px,1fr); max-width:720px; }
.condition-row select,
.action-row select {
  width:100%;
  min-height:38px;
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  background:var(--surface);
  color:var(--fg);
  padding:0 32px 0 10px;
  font-weight:650;
}
.arrow { color:var(--muted); text-align:center; font-weight:850; }
.delete-condition { width:34px; height:34px; padding:0; border-radius:var(--radius-sm); }
.condition-tools {
  grid-column:2;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:var(--space-3);
  margin-top:var(--space-3);
  flex-wrap:wrap;
}
.condition-tools .material-icons { font-size:16px; }
.rule-divider { height:1px; margin:0 var(--space-4); background:var(--border-soft); }
.other-actions {
  grid-column:2;
  display:grid;
  gap:8px;
  margin-top:var(--space-3);
  max-width:380px;
  color:var(--muted);
  font-size:12px;
}
.other-actions button {
  width:max-content;
  border:0;
  background:transparent;
  color:var(--fg-2);
  padding:0;
  font-weight:750;
  text-align:left;
}
.other-actions button::before { content:'▸'; margin-right:6px; color:var(--muted); }
.other-actions button:hover { color:var(--accent); }
.rule-editor-actions {
  display:flex;
  justify-content:flex-end;
  gap:var(--space-2);
  padding:var(--space-3) var(--space-4);
  border-top:1px solid var(--border-soft);
  background:color-mix(in oklab, var(--surface), var(--bg) 18%);
}
@media (max-width: 1180px) {
  .condition-row { grid-template-columns:1fr; }
  .condition-row .arrow { display:none; }
  .delete-condition { justify-self:start; }
}
@media (max-width: 980px) {
  .topbar { align-items:stretch; }
  .header-nav { width:100%; justify-content:flex-start; }
  .branching-workspace { grid-template-columns:1fr; }
  .rule-section { grid-template-columns:1fr; }
  .rule-label { line-height:1; }
  .condition-tools,
  .other-actions { grid-column:1; }
  .action-row { grid-template-columns:1fr; }
  .action-row .arrow { display:none; }
}

/* Detail mode split: tab item vs question item */
.tab-btn[hidden],
.tab-panel[hidden],
.detail-add-question[hidden] { display:none !important; }
.detail-head { gap:var(--space-2); }
.detail-head .detail-path { flex:1 1 auto; min-width:0; }
.detail-add-question { flex:0 0 auto; }
.question-basic-focus { padding-left:0; }
.question-focus-card {
  width:100%;
  max-width:none;
  display:grid;
  gap:var(--space-4);
  border:0;
  border-radius:0;
  background:transparent;
  padding:0;
}
.question-form-section {
  width:100%;
  display:grid;
  gap:var(--space-3);
  border:0;
  border-radius:0;
  background:transparent;
  padding:0;
}
.question-form-section-head {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:var(--space-3);
  padding-bottom:var(--space-2);
  border-bottom:1px solid var(--border-soft);
}
.question-form-section-head h3 { margin:0; font-size:var(--text-base); }
.question-form-kicker { display:none; }
.question-info-grid { display:grid; grid-template-columns:minmax(0,1fr) minmax(190px,240px); gap:var(--space-3); align-items:start; }
.question-info-grid .field { margin-bottom:0; }
.question-info-grid textarea { min-height:42px; font-weight:400; resize:none; overflow:hidden; }
.question-info-grid select { min-height:42px; font-weight:400; }
.question-options-section .builder-options { gap:var(--space-2); }
.question-options-section .builder-option-row {
  grid-template-columns:24px auto minmax(0,1fr) auto;
  padding:var(--space-1) 0;
}
.question-options-section .builder-option-row.has-option-tts {
  grid-template-columns:24px auto minmax(0,1fr) auto;
}
.question-options-section .builder-option-row > .row-index { grid-column:1; }
.question-options-section .builder-option-row > .play-option-tts { grid-column:2; }
.question-options-section .builder-option-row > .option-label-input,
.question-options-section .builder-option-row.has-option-tts > .option-label-input { grid-column:3; width:100%; min-width:0; justify-self:stretch; }
.question-options-section .builder-option-row > .builder-option-actions,
.question-options-section .builder-option-row.has-option-tts > .builder-option-actions { grid-column:4; }
.question-options-section .builder-option-row:hover { background:transparent; }
.question-options-section .add-builder-option {
  min-height:30px;
  padding:0 10px;
  border-color:transparent;
  background:transparent;
  color:var(--accent);
  font-size:12px;
  font-weight:750;
}
.question-options-section .add-builder-option::before { content:"add"; font-family:"Material Icons"; font-size:16px; font-weight:normal; line-height:1; }
.question-options-section .add-builder-option:hover { background:var(--surface-warm); border-color:transparent; }
.question-basic-focus.question-type-text .question-options-section .builder-options { display:none; }
.question-basic-focus.question-type-text .question-options-section .add-builder-option { display:none; }
.detail-body.detail-mode-question .question-focus-card .builder-option-row { cursor:default; }
.detail-body.detail-mode-question .question-focus-card .builder-option-row:hover { background:transparent; }
.inline-rule-card { max-width:960px; }
.inline-rule-card .condition-row,
.inline-rule-card .primary-action-row { grid-template-columns:minmax(260px, 1fr) auto minmax(120px, .45fr) auto minmax(220px, .75fr); }
@media (max-width: 980px) {
  .detail-head { align-items:flex-start; }
  .detail-add-question { width:100%; }
  .question-basic-focus { padding-left:0; }
  .question-info-grid { grid-template-columns:1fr; }
  .question-form-section-head { align-items:flex-start; }
  .question-options-section .builder-option-row { grid-template-columns:22px minmax(0,1fr); }
  .question-options-section .builder-option-actions { grid-column:2; justify-content:flex-start; }
  .inline-rule-card .condition-row,
  .inline-rule-card .primary-action-row { grid-template-columns:1fr; }
  .inline-rule-card .arrow { display:none; }
}

    /* Global Audio/Video intro mode */
    .intro-video-workspace { display:block; }
    .intro-video-global-panel { display:none; }
    .intro-video-mode .intro-video-workspace { display:grid; grid-template-columns:minmax(280px, 360px) minmax(0, 1fr); gap:var(--space-4); align-items:start; }
    .intro-video-mode .intro-video-global-panel { display:block; position:sticky; top:56px; }
    .intro-video-card { width:100%; max-width:360px; min-height:260px; display:grid; gap:var(--space-3); padding:var(--space-3); border:1px solid var(--border); border-radius:var(--radius-lg); background:var(--surface); }
    .intro-video-actions { display:flex; align-items:center; gap:var(--space-2); }
    .intro-video-actions .btn { min-height:32px; }
    .intro-video-actions .intro-global-video-delete { width:32px; padding:0; margin-left:auto; }
    .intro-global-video-file { min-height:18px; color:var(--muted); font-size:var(--text-xs); overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
    .intro-global-video-preview[hidden] { display:none !important; }
    .intro-global-video-empty { min-height:180px; display:grid; place-items:center; text-align:center; border:1px dashed var(--border); border-radius:var(--radius-md); background:var(--bg); color:var(--muted); font-size:var(--text-sm); }
    .intro-global-video-empty[hidden] { display:none !important; }
    .intro-video-mode .intro-media-items { min-width:0; width:100%; }
    .intro-video-mode .tts-list { display:grid; gap:var(--space-2); padding-left:0; width:100%; }
    .intro-video-mode .tts-box { width:100%; min-width:0; display:grid; grid-template-columns:minmax(0, 1fr); gap:var(--space-2); align-items:end; padding:var(--space-2); border-color:var(--border-soft); }
    .intro-video-mode .tts-box .tts-head,
    .intro-video-mode .tts-box > .field,
    .intro-video-mode .tts-box .tts-actions,
    .intro-video-mode .tts-box .intro-video-panel,
    .intro-video-mode .tts-box .tts-meta-row > .field:first-child { display:none !important; }
    .intro-video-mode .tts-box .tts-meta-row { display:grid; grid-template-columns:minmax(180px, 1fr) 96px 96px 32px; gap:var(--space-2); align-items:end; width:100%; min-width:0; }
    .intro-video-mode .tts-box .tts-meta-row > .field { min-width:0; margin:0; }
    .intro-video-mode .tts-box .tts-meta-row label { font-size:11px; color:var(--muted); margin-bottom:4px; }
    .intro-video-mode .tts-box .blink-target { width:100%; min-width:0; min-height:32px; font-size:13px; }
    .intro-video-mode .video-blink-time input { width:100%; min-height:32px; padding:0 8px; font-size:13px; }
    .intro-video-mode .video-blink-remove { align-self:end; width:32px; height:32px; color:var(--danger); }
    .intro-video-mode .audio-blink-duration { display:none !important; }
    .intro-mode-audio .video-blink-time, .intro-mode-audio .video-blink-remove { display:none !important; }
    .intro-video-mode .tts-toolbar { justify-content:flex-start; margin-top:var(--space-3); }
    @media (max-width: 980px) {
      .intro-video-mode .intro-video-workspace { grid-template-columns:1fr; }
      .intro-video-mode .intro-video-global-panel { position:static; }
      .intro-video-card { max-width:none; }
      .intro-video-mode .tts-box { grid-template-columns:1fr; }
      .tts-meta-row { grid-template-columns:1fr; }
      .intro-video-mode .tts-box .tts-meta-row { grid-template-columns:1fr; }
      .intro-video-mode .video-blink-remove { justify-self:start; }
    }
    .intro-video-card .intro-video-frame, .intro-global-video-empty, .intro-global-video-player { width:100%; aspect-ratio:16 / 9; min-height:180px; max-height:220px; }
    .intro-global-video-player { display:block; border:1px solid var(--border); border-radius:var(--radius-md); background:#000; object-fit:contain; }

/* Body map question type */
.body-map-workspace[hidden] { display:none !important; }
.body-map-workspace {
  display:grid;
  grid-template-columns:minmax(300px, 420px) minmax(0, 1fr);
  gap:var(--space-3);
  align-items:start;
  width:100%;
}
.body-map-canvas-card,
.body-map-option-panel {
  min-width:0;
  border:1px solid var(--border-soft);
  border-radius:var(--radius-md);
  background:var(--surface);
}
.body-map-canvas-card { padding:var(--space-2); }
.body-map-canvas {
  position:relative;
  width:100%;
  height:360px;
  overflow:hidden;
  display:grid;
  place-items:center;
  border:1px dashed var(--border);
  border-radius:var(--radius-md);
  background:linear-gradient(180deg, color-mix(in oklab, var(--surface), var(--bg) 26%), var(--surface));
  cursor:crosshair;
}
.body-map-canvas.has-image { border-style:solid; background:var(--surface); }
.body-map-image {
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:contain;
  z-index:1;
}
.body-map-upload {
  position:absolute;
  top:10px;
  left:10px;
  z-index:4;
  cursor:pointer;
}
.body-map-fullscreen {
  position:absolute;
  top:10px;
  right:10px;
  z-index:4;
  width:32px;
  min-width:32px;
  padding:0;
}
.body-map-fullscreen .material-icons { font-size:18px; line-height:1; }
body.has-body-map-fullscreen { overflow:hidden; }
.body-map-workspace.body-map-fullscreen-mode {
  position:fixed;
  inset:12px;
  z-index:80;
  grid-template-columns:minmax(0, 1fr) minmax(320px, 420px);
  align-items:stretch;
  padding:var(--space-3);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  background:color-mix(in oklab, var(--surface), var(--bg) 8%);
  box-shadow:0 24px 80px rgba(23, 32, 51, 0.22);
}
.body-map-workspace.body-map-fullscreen-mode .body-map-canvas-card,
.body-map-workspace.body-map-fullscreen-mode .body-map-option-panel { min-height:0; }
.body-map-workspace.body-map-fullscreen-mode .body-map-canvas-card { display:flex; padding:var(--space-2); }
.body-map-workspace.body-map-fullscreen-mode .body-map-canvas {
  height:auto;
  min-height:0;
  flex:1;
}
.body-map-workspace.body-map-fullscreen-mode .body-map-option-panel {
  max-height:calc(100dvh - 48px);
  overflow:auto;
}
.body-map-placeholder {
  display:grid;
  place-items:center;
  gap:6px;
  max-width:240px;
  padding:var(--space-4);
  text-align:center;
  color:var(--muted);
  pointer-events:none;
}
.body-map-placeholder .material-icons { font-size:34px; color:var(--muted); }
.body-map-placeholder strong { color:var(--fg); font-size:13px; font-weight:750; }
.body-map-placeholder small { font-size:12px; line-height:1.35; }
.body-map-pin {
  position:absolute;
  z-index:3;
  width:18px;
  height:18px;
  transform:translate(-50%, -50%);
  display:grid;
  place-items:center;
  border:1px solid var(--surface);
  border-radius:var(--radius-pill);
  background:var(--accent);
  color:var(--accent-on);
  box-shadow:none;
  font:800 9px/1 var(--font-mono);
  cursor:grab;
  touch-action:none;
  user-select:none;
  transition:transform var(--motion-fast) var(--ease-standard), background var(--motion-fast) var(--ease-standard);
}
.body-map-pin:hover,
.body-map-pin:focus-visible {
  transform:translate(-50%, -50%) scale(1.08);
  box-shadow:none;
  outline:2px solid color-mix(in oklab, var(--accent), transparent 55%);
  outline-offset:2px;
}
.body-map-pin.is-dragging {
  cursor:grabbing;
  transform:translate(-50%, -50%) scale(1.12);
  box-shadow:none;
}
.body-map-canvas.is-dragging-pin { cursor:grabbing; }
.body-map-option-panel {
  display:grid;
  grid-template-rows:auto minmax(0, 1fr);
  gap:var(--space-2);
  padding:var(--space-2);
  min-height:360px;
}
.body-map-option-panel > .builder-options {
  align-self:start;
  align-content:start;
  gap:var(--space-2);
  min-height:0;
}
.body-map-option-panel .builder-option-row,
.question-options-section .body-map-option-panel .builder-option-row {
  align-self:start;
  min-height:34px;
  grid-template-columns:24px auto minmax(0, 1fr) auto;
  padding:var(--space-1) 0;
}
.body-map-option-panel .option-label-input {
  align-self:center;
}
.body-map-option-head {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:var(--space-2);
  padding:2px 2px var(--space-2);
  border-bottom:1px solid var(--border-soft);
}
.body-map-option-head strong { font-size:12px; font-weight:750; color:var(--fg); }
.body-map-option-head span { font-size:11px; color:var(--muted); }
.question-type-body-map > .builder-question-actions,
.question-type-body-map .question-options-section .add-builder-option { display:none !important; }
.question-type-body-map > .builder-options,
.question-type-body-map .question-options-section > .builder-options { display:grid; }
.tree-row.tree-question.tree-q-body-map .node-copy::before { content:"accessibility_new"; }
@media (max-width: 980px) {
  .body-map-workspace { grid-template-columns:1fr; }
  .body-map-canvas { height:300px; }
  .body-map-workspace.body-map-fullscreen-mode {
    grid-template-columns:1fr;
    overflow:auto;
  }
  .body-map-workspace.body-map-fullscreen-mode .body-map-canvas { min-height:60dvh; }
}