:root {
      --panel: #ffffff;
      --border: #e5e5e5;
      --text: #111111;
      --muted: #666666;
      --pagebg: #f6f6f6;
      --stagebg: #f2f2f2;
      --btnbg: #ffffff;
      --btntext: #111111;
      --btnPrimaryBg: #111111;
      --btnPrimaryText: #ffffff;
      --okBg: #d1fae5;
      --okText: #065f46;
      --warnBg: #ffedd5;
      --warnText: #9a3412;
      --dangerBg: #fee2e2;
      --dangerText: #991b1b;
      --shadow: 0 3px 10px rgba(0, 0, 0, 0.06);
    }

    html[data-theme="dark"] {
      --panel: #141414;
      --border: #2b2b2b;
      --text: #f2f2f2;
      --muted: #aaaaaa;
      --pagebg: #0f0f10;
      --stagebg: #1d1d1f;
      --btnbg: #1a1a1a;
      --btntext: #f2f2f2;
      --btnPrimaryBg: #f2f2f2;
      --btnPrimaryText: #111111;
      --okBg: #12392f;
      --okText: #8df0cb;
      --warnBg: #4a2b12;
      --warnText: #fdba74;
      --dangerBg: #461919;
      --dangerText: #fca5a5;
      --shadow: 0 3px 12px rgba(0, 0, 0, 0.35);
    }

    * { box-sizing: border-box; }

    body {
      margin: 0;
      font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
      color: var(--text);
      background: var(--pagebg);
    }

    .hidden { display: none !important; }

    .container {
      max-width: 1320px;
      margin: 0 auto;
      padding: 14px;
    }

    .card {
      background: var(--panel);
      border: 1px solid var(--border);
      border-radius: 14px;
      box-shadow: var(--shadow);
      padding: 14px;
    }

    .topbar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 12px;
      flex-wrap: wrap;
    }

    .title {
      margin: 0;
      font-size: 21px;
    }

    .subtle {
      color: var(--muted);
      font-size: 13px;
    }

    .btn,
    button,
    input,
    select,
    textarea {
      font: inherit;
      color: inherit;
    }

    .btn,
    button {
      border: 1px solid var(--border);
      background: var(--btnbg);
      color: var(--btntext);
      border-radius: 11px;
      padding: 9px 12px;
      cursor: pointer;
      text-decoration: none;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .btn.primary,
    button.primary {
      background: var(--btnPrimaryBg);
      color: var(--btnPrimaryText);
      border-color: var(--btnPrimaryBg);
      font-weight: 600;
    }

    .btn:disabled,
    button:disabled,
    .btn.disabled {
      opacity: 0.5;
      cursor: not-allowed;
      pointer-events: none;
    }

    .pill {
      border-radius: 999px;
      padding: 2px 8px;
      font-size: 12px;
      border: 1px solid transparent;
      white-space: nowrap;
    }

    .status-draft { background: var(--warnBg); color: var(--warnText); }
    .status-lining { background: #dbeafe; color: #1e3a8a; }
    .status-coloring { background: #ede9fe; color: #5b21b6; }
    .status-completed { background: var(--okBg); color: var(--okText); }

    .main-nav {
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
    }

    .main-nav .active {
      background: color-mix(in srgb, var(--btnbg) 65%, #4f8cff 35%);
      border-color: color-mix(in srgb, #4f8cff 55%, var(--border));
      color: color-mix(in srgb, #4f8cff 45%, var(--text));
      box-shadow: 0 0 0 2px color-mix(in srgb, #4f8cff 28%, transparent);
    }

    .public-hero {
      display: grid;
      grid-template-columns: 1.4fr 1fr;
      gap: 12px;
      margin-top: 12px;
    }

    .public-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
      margin-top: 12px;
    }

    .public-links {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 8px;
    }

    .tos-list {
      margin: 0;
      padding-left: 18px;
      display: grid;
      gap: 5px;
      font-size: 13px;
    }

    .price-table {
      width: 100%;
      border-collapse: collapse;
      font-size: 13px;
      margin-top: 8px;
    }

    .price-table td {
      border-bottom: 1px solid var(--border);
      padding: 8px 4px;
    }

    .login-wrap {
      min-height: 100vh;
      display: grid;
      place-items: center;
      padding: 14px;
      background: color-mix(in srgb, var(--pagebg) 65%, #00000010);
    }
    .login-card {
      width: min(980px, 100%);
      display: grid;
      grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
      gap: 10px;
    }

    .grid-2 {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
    }

    .field {
      display: grid;
      gap: 5px;
      margin-bottom: 10px;
    }

    .field label {
      color: var(--muted);
      font-size: 13px;
      font-weight: 600;
    }

    .field input,
    .field select,
    .field textarea {
      border: 1px solid var(--border);
      background: var(--panel);
      border-radius: 10px;
      padding: 8px 10px;
    }

    .field textarea {
      min-height: 90px;
      resize: vertical;
    }

    .error {
      min-height: 18px;
      color: #dc2626;
      font-size: 13px;
    }

    .table-wrap {
      overflow-x: auto;
      border: 1px solid var(--border);
      border-radius: 12px;
      margin-top: 10px;
    }

    table {
      width: 100%;
      border-collapse: collapse;
      font-size: 13px;
    }

    th,
    td {
      padding: 9px;
      border-bottom: 1px solid var(--border);
      text-align: left;
      vertical-align: top;
    }

    th {
      color: var(--muted);
      font-weight: 600;
      background: color-mix(in srgb, var(--panel) 88%, var(--border));
    }

    tbody tr { cursor: pointer; }
    tbody tr:hover { background: color-mix(in srgb, var(--panel) 86%, #dbeafe); }

    .kpis {
      margin-top: 10px;
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 8px;
    }

    .kpi {
      border: 1px solid var(--border);
      border-radius: 10px;
      padding: 8px;
      background: color-mix(in srgb, var(--panel) 95%, var(--border));
    }

    .kpi .label {
      font-size: 12px;
      color: var(--muted);
    }

    .kpi .value {
      font-size: 16px;
      font-weight: 700;
      margin-top: 2px;
    }

    .detail-head {
      display: flex;
      justify-content: space-between;
      gap: 10px;
      flex-wrap: wrap;
      align-items: center;
      margin-bottom: 10px;
    }

    .detail-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 10px;
    }

    .stat-box {
      border: 1px solid var(--border);
      border-radius: 11px;
      padding: 10px;
      background: color-mix(in srgb, var(--panel) 95%, var(--border));
    }

    .stat-box .label {
      font-size: 12px;
      color: var(--muted);
    }

    .stat-box .value {
      font-size: 15px;
      font-weight: 700;
      margin-top: 2px;
    }

    .section-title {
      margin: 18px 0 8px;
      font-size: 18px;
    }

    .split {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
    }

    .gallery {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
      gap: 10px;
    }

    .asset {
      border: 1px solid var(--border);
      border-radius: 10px;
      overflow: hidden;
      background: var(--panel);
    }

    .asset-thumb {
      height: 135px;
      background: var(--stagebg);
      display: grid;
      place-items: center;
    }

    .asset-thumb img,
    .asset-thumb video {
      width: 100%;
      height: 100%;
      object-fit: contain;
    }

    .asset-meta {
      padding: 8px;
      display: grid;
      gap: 4px;
      font-size: 12px;
    }

    .asset-meta .name { font-weight: 700; }

    .variation {
      border: 1px solid var(--border);
      border-radius: 14px;
      padding: 10px;
      background: var(--panel);
    }

    .variation-grid {
      display: grid;
      grid-template-columns: 360px 1fr;
      gap: 12px;
      align-items: start;
    }

    .variation-controls fieldset {
      border: 1px solid var(--border);
      border-radius: 12px;
      padding: 8px;
      margin: 10px 0;
    }

    .variation-controls legend {
      color: var(--muted);
      font-size: 13px;
      padding: 0 6px;
    }

    .opt {
      display: flex;
      gap: 8px;
      align-items: center;
      padding: 7px;
      border-radius: 9px;
    }

    .opt:hover { background: color-mix(in srgb, var(--panel) 80%, var(--border)); }
    .opt.disabled { opacity: 0.52; }

    .rule-note {
      min-height: 18px;
      font-size: 12px;
      color: var(--warnText);
    }

    .preview {
      border: 1px solid var(--border);
      border-radius: 14px;
      padding: 10px;
      background: var(--panel);
    }

    .stage {
      position: relative;
      width: min(980px, 100%);
      aspect-ratio: var(--w) / var(--h);
      background: var(--stagebg);
      border-radius: 12px;
      overflow: hidden;
      margin: 0 auto;
    }

    .stage img {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      object-fit: contain;
      display: none;
      pointer-events: none;
    }

    .stage img.show { display: block; }

    .toolbar {
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
      justify-content: center;
      margin-top: 9px;
    }

    .summary {
      margin-top: 8px;
      width: 100%;
      min-height: 100px;
      resize: vertical;
      border: 1px solid var(--border);
      border-radius: 12px;
      padding: 9px;
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
      font-size: 12px;
      background: var(--panel);
      color: var(--text);
    }

    .admin-layout {
      display: grid;
      grid-template-columns: 320px 1fr;
      gap: 12px;
    }

    .list-box {
      border: 1px solid var(--border);
      border-radius: 12px;
      padding: 8px;
      max-height: 68vh;
      overflow: auto;
      display: grid;
      gap: 6px;
      background: color-mix(in srgb, var(--panel) 95%, var(--border));
    }

    .item-btn {
      border: 1px solid var(--border);
      border-radius: 10px;
      background: var(--panel);
      text-align: left;
      padding: 8px;
    }

    .item-btn.active {
      border-color: #93c5fd;
      background: #eaf3ff;
      color: #1e40af;
    }

    .asset-filter-btn.active {
      background: #eaf3ff;
      border-color: #93c5fd;
      color: #1e40af;
    }

    .admin-help {
      border: 1px dashed var(--border);
      border-radius: 10px;
      padding: 9px;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.4;
      margin-bottom: 10px;
    }
    .variation-builder {
      border: 1px dashed var(--border);
      border-radius: 10px;
      padding: 10px;
      background: color-mix(in srgb, var(--panel) 96%, var(--border));
      margin-bottom: 10px;
    }

    .variation-builder .field {
      margin-bottom: 8px;
    }

    #variationBuilderBaseLines,
    #variationBuilderOptionLines {
      min-height: 110px;
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
      font-size: 12px;
    }

    #variationBuilderOptionLines {
      min-height: 160px;
    }
    @media (max-width: 980px) {
      .login-card {
        width: min(680px, 100%);
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 1100px) {
      .public-hero { grid-template-columns: 1fr; }
      .public-grid { grid-template-columns: 1fr 1fr; }
      .variation-grid { grid-template-columns: 1fr; }
      .detail-grid { grid-template-columns: 1fr 1fr; }
      .split { grid-template-columns: 1fr; }
      .admin-layout { grid-template-columns: 1fr; }
    }

    @media (max-width: 760px) {
      .public-grid { grid-template-columns: 1fr; }
      .kpis { grid-template-columns: 1fr 1fr; }
      .detail-grid { grid-template-columns: 1fr; }
      .grid-2 { grid-template-columns: 1fr; }
      .login-card { grid-template-columns: 1fr; }
    }