:root {
      --bg: #fbf3e4;
      --bg-strong: #f4e4ca;
      --surface: rgba(255, 251, 245, 0.9);
      --surface-strong: rgba(255, 248, 238, 0.98);
      --panel: rgba(255, 255, 255, 0.72);
      --line: rgba(130, 108, 83, 0.18);
      --line-strong: rgba(130, 108, 83, 0.3);
      --ink: #2f312d;
      --ink-soft: #5c6057;
      --accent: #ff7f60;
      --accent-deep: #e36145;
      --accent-mint: #5fa69d;
      --accent-mint-deep: #337c73;
      --accent-gold: #e2b965;
      --danger: #c84b4b;
      --shadow: 0 22px 60px rgba(95, 74, 48, 0.12);
      --radius-xl: 28px;
      --radius-lg: 20px;
      --radius-md: 16px;
      --radius-sm: 12px;
      --page-width: 1400px;
      --header-font: "Trebuchet MS", "Microsoft JhengHei", "PingFang TC", sans-serif;
      --body-font: "Microsoft JhengHei", "PingFang TC", "Noto Sans TC", sans-serif;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      min-height: 100vh;
      font-family: var(--body-font);
      color: var(--ink);
      background:
        radial-gradient(circle at top right, rgba(255, 208, 156, 0.44), transparent 28%),
        radial-gradient(circle at top left, rgba(116, 196, 188, 0.22), transparent 24%),
        linear-gradient(180deg, #fff8ef 0%, var(--bg) 55%, #f6ecdc 100%);
      line-height: 1.55;
    }

    button,
    input,
    select,
    textarea {
      font: inherit;
    }

    button {
      cursor: pointer;
    }

    img,
    canvas {
      display: block;
      max-width: 100%;
    }

    [hidden] {
      display: none !important;
    }

    .page-shell {
      width: min(var(--page-width), calc(100% - 28px));
      margin: 0 auto;
      padding: 24px 0 48px;
    }

    .hero {
      position: relative;
      overflow: hidden;
      border-radius: 36px;
      padding: 28px;
      background:
        linear-gradient(125deg, rgba(255, 252, 245, 0.95) 0%, rgba(255, 239, 223, 0.92) 45%, rgba(255, 224, 196, 0.9) 100%);
      box-shadow: var(--shadow);
      border: 1px solid rgba(255, 255, 255, 0.65);
      isolation: isolate;
    }

    .hero::before,
    .hero::after {
      content: "";
      position: absolute;
      inset: auto;
      border-radius: 50%;
      filter: blur(12px);
      opacity: 0.75;
      z-index: -1;
    }

    .hero::before {
      width: 320px;
      height: 320px;
      right: -90px;
      top: -110px;
      background: radial-gradient(circle, rgba(255, 132, 112, 0.34), transparent 68%);
    }

    .hero::after {
      width: 280px;
      height: 280px;
      left: -70px;
      bottom: -90px;
      background: radial-gradient(circle, rgba(95, 166, 157, 0.28), transparent 70%);
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
      gap: 24px;
      align-items: stretch;
    }

    .hero-copy {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      min-height: 320px;
      gap: 20px;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      width: fit-content;
      padding: 8px 16px;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.66);
      border: 1px solid rgba(255, 255, 255, 0.72);
      color: var(--accent-mint-deep);
      font-size: 0.96rem;
      font-weight: 700;
      letter-spacing: 0.02em;
      backdrop-filter: blur(12px);
    }

    .hero h1 {
      margin: 0;
      font-family: var(--header-font);
      font-size: clamp(2.3rem, 4vw, 4.35rem);
      line-height: 1.05;
      letter-spacing: 0.02em;
    }

    .hero p {
      margin: 0;
      max-width: 32rem;
      font-size: clamp(1rem, 1.5vw, 1.18rem);
      color: var(--ink-soft);
    }

    .hero-notes {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 8px;
    }

    .hero-note {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 11px 14px;
      border-radius: 14px;
      background: rgba(255, 255, 255, 0.58);
      border: 1px solid rgba(255, 255, 255, 0.62);
      color: var(--ink-soft);
      font-size: 0.95rem;
      font-weight: 600;
    }

    .hero-note strong {
      color: var(--ink);
    }

    .hero-visual {
      display: grid;
      gap: 18px;
      align-content: space-between;
      padding: 20px;
      border-radius: 30px;
      background:
        linear-gradient(160deg, rgba(255, 255, 255, 0.72), rgba(255, 248, 241, 0.52)),
        linear-gradient(145deg, rgba(255, 194, 174, 0.25), rgba(128, 202, 194, 0.16));
      border: 1px solid rgba(255, 255, 255, 0.66);
      backdrop-filter: blur(14px);
    }

    .visual-bands {
      display: grid;
      gap: 12px;
    }

    .visual-band {
      display: grid;
      grid-template-columns: repeat(7, 1fr);
      gap: 8px;
    }

    .visual-band span {
      aspect-ratio: 1 / 1;
      border-radius: 999px;
      box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.45);
    }

    .visual-card {
      display: grid;
      gap: 12px;
      padding: 16px;
      border-radius: 22px;
      background: rgba(255, 255, 255, 0.66);
      border: 1px solid rgba(255, 255, 255, 0.72);
    }

    .visual-card strong {
      font-size: 1.08rem;
      letter-spacing: 0.02em;
    }

    .visual-card p {
      font-size: 0.95rem;
    }

    .app-grid {
      display: grid;
      gap: 22px;
      grid-template-columns: minmax(310px, 0.78fr) minmax(0, 1.22fr);
    }

    .tabs-shell {
      display: grid;
      gap: 22px;
      margin-top: 22px;
    }

    .tab-bar {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      align-items: center;
      padding: 14px;
    }

    .tab-btn {
      border: none;
      min-height: 54px;
      padding: 0 18px;
      border-radius: 18px;
      background: rgba(255, 255, 255, 0.72);
      color: var(--ink-soft);
      border: 1px solid rgba(95, 166, 157, 0.14);
      display: inline-flex;
      align-items: center;
      gap: 12px;
      font-weight: 800;
      transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease, color 0.18s ease;
    }

    .tab-btn:hover {
      transform: translateY(-1px);
      border-color: rgba(95, 166, 157, 0.32);
      color: var(--ink);
    }

    .tab-btn.is-active {
      background: linear-gradient(135deg, rgba(255, 127, 96, 0.15), rgba(95, 166, 157, 0.16));
      border-color: rgba(95, 166, 157, 0.36);
      color: var(--ink);
      box-shadow: 0 14px 30px rgba(95, 166, 157, 0.12);
    }

    .tab-btn strong {
      display: block;
      font-size: 1rem;
      color: inherit;
    }

    .tab-btn span {
      display: block;
      font-size: 0.84rem;
      font-weight: 700;
      color: inherit;
      opacity: 0.84;
    }

    .tab-panel {
      display: none;
    }

    .tab-panel.is-active {
      display: block;
      animation: fade-up 0.28s ease both;
    }

    .single-stack {
      display: grid;
      gap: 22px;
    }

    .left-stack,
    .right-stack {
      display: grid;
      gap: 22px;
      align-content: start;
    }

    .panel {
      position: relative;
      overflow: hidden;
      border-radius: var(--radius-xl);
      padding: 22px;
      background: var(--surface);
      border: 1px solid rgba(255, 255, 255, 0.7);
      box-shadow: 0 18px 48px rgba(95, 74, 48, 0.08);
      backdrop-filter: blur(14px);
      animation: fade-up 0.55s ease both;
    }

    .panel::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(160deg, rgba(255, 255, 255, 0.28), transparent 28%);
      pointer-events: none;
    }

    .panel-title-row {
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
      gap: 14px;
      margin-bottom: 18px;
    }

    .panel-title-row h2,
    .panel-title-row h3 {
      margin: 0;
      font-family: var(--header-font);
      font-size: clamp(1.18rem, 2vw, 1.5rem);
      line-height: 1.16;
      letter-spacing: 0.01em;
    }

    .panel-subtitle {
      margin: 6px 0 0;
      color: var(--ink-soft);
      font-size: 0.96rem;
    }

    .pill {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      min-height: 36px;
      padding: 8px 14px;
      border-radius: 999px;
      background: rgba(95, 166, 157, 0.12);
      color: var(--accent-mint-deep);
      font-weight: 800;
      font-size: 0.92rem;
      border: 1px solid rgba(95, 166, 157, 0.16);
      white-space: nowrap;
    }

    .upload-area {
      position: relative;
      display: grid;
      gap: 14px;
      padding: 18px;
      border-radius: 24px;
      border: 1.5px dashed rgba(95, 166, 157, 0.34);
      background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.74), rgba(248, 252, 251, 0.68)),
        rgba(255, 255, 255, 0.45);
    }

    .upload-area strong {
      font-size: 1.08rem;
    }

    .upload-area p {
      margin: 0;
      color: var(--ink-soft);
      font-size: 0.95rem;
    }

    .form-grid {
      display: grid;
      gap: 14px;
    }

    .field-row {
      display: grid;
      gap: 8px;
    }

    .field-row label,
    .field-label {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--ink);
    }

    .field-row small {
      color: var(--ink-soft);
      font-size: 0.85rem;
    }

    .stacked-inline {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      align-items: center;
    }

    .text-input,
    .select-input,
    .number-input {
      width: 100%;
      min-height: 48px;
      padding: 12px 14px;
      border-radius: 14px;
      border: 1px solid var(--line);
      background: rgba(255, 255, 255, 0.9);
      color: var(--ink);
      outline: none;
      transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
    }

    .text-input:focus,
    .select-input:focus,
    .number-input:focus {
      border-color: rgba(95, 166, 157, 0.55);
      box-shadow: 0 0 0 4px rgba(95, 166, 157, 0.12);
      transform: translateY(-1px);
    }

    .button-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .primary-btn,
    .secondary-btn,
    .ghost-btn,
    .mini-btn {
      border: none;
      min-height: 48px;
      padding: 0 18px;
      border-radius: 16px;
      font-weight: 800;
      letter-spacing: 0.01em;
      transition: transform 0.18s ease, filter 0.18s ease, box-shadow 0.18s ease;
    }

    .primary-btn:hover,
    .secondary-btn:hover,
    .ghost-btn:hover,
    .mini-btn:hover {
      transform: translateY(-1px);
      filter: saturate(1.03);
    }

    .primary-btn:disabled,
    .secondary-btn:disabled,
    .ghost-btn:disabled,
    .mini-btn:disabled {
      cursor: not-allowed;
      opacity: 0.46;
      transform: none;
      filter: none;
    }

    .primary-btn {
      background: linear-gradient(135deg, var(--accent) 0%, #ff9a72 100%);
      color: #fffaf7;
      box-shadow: 0 14px 28px rgba(255, 127, 96, 0.24);
    }

    .secondary-btn {
      background: linear-gradient(135deg, var(--accent-mint) 0%, #7ebdb4 100%);
      color: #f9fffd;
      box-shadow: 0 14px 28px rgba(95, 166, 157, 0.22);
    }

    .ghost-btn {
      background: rgba(255, 255, 255, 0.72);
      color: var(--ink);
      border: 1px solid rgba(95, 166, 157, 0.18);
    }

    .mini-btn {
      min-height: 40px;
      padding: 0 14px;
      border-radius: 14px;
      background: rgba(255, 255, 255, 0.82);
      color: var(--ink);
      border: 1px solid var(--line);
      font-size: 0.92rem;
    }

    .toggle-card-grid {
      display: grid;
      gap: 10px;
    }

    .toggle-card {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 14px 16px;
      border-radius: 16px;
      background: rgba(255, 255, 255, 0.78);
      border: 1px solid var(--line);
    }

    .toggle-card input[type="checkbox"],
    .toggle-card input[type="radio"] {
      width: 22px;
      height: 22px;
      accent-color: var(--accent-mint);
      margin: 0;
      flex: 0 0 auto;
    }

    .toggle-text {
      display: grid;
      gap: 2px;
    }

    .toggle-text strong {
      font-size: 0.98rem;
    }

    .toggle-text span {
      color: var(--ink-soft);
      font-size: 0.88rem;
    }

    .settings-grid {
      display: grid;
      gap: 14px;
    }

    .preview-panel {
      display: grid;
      gap: 16px;
    }

    .preview-toolbar {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
    }

    .zoom-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
      min-width: min(100%, 320px);
    }

    .zoom-wrap input[type="range"] {
      flex: 1;
      accent-color: var(--accent-mint);
    }

    .overview-preview-toolbar {
      padding: 4px 0 2px;
    }

    .overview-zoom-wrap {
      flex: 1 1 420px;
      min-width: 0;
    }

    .overview-zoom-wrap input[type="range"] {
      flex: 1;
      min-width: 140px;
    }

    .overview-zoom-reset {
      white-space: nowrap;
    }

    .preview-shell {
      position: relative;
      overflow: auto;
      max-height: 620px;
      border-radius: 28px;
      background: #ffffff;
      background-image:
        linear-gradient(45deg, rgba(214, 214, 214, 0.46) 25%, transparent 25%),
        linear-gradient(-45deg, rgba(214, 214, 214, 0.46) 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, rgba(214, 214, 214, 0.46) 75%),
        linear-gradient(-45deg, transparent 75%, rgba(214, 214, 214, 0.46) 75%);
      background-size: 20px 20px;
      background-position: 0 0, 0 10px, 10px -10px, -10px 0;
      border: 1px solid rgba(90, 77, 56, 0.15);
      padding: 16px;
    }

    .preview-stage {
      position: relative;
      display: inline-block;
      min-width: 100%;
      min-height: 240px;
      border-radius: 18px;
      overflow: hidden;
      background:
        linear-gradient(45deg, rgba(232, 232, 232, 0.72) 25%, transparent 25%),
        linear-gradient(-45deg, rgba(232, 232, 232, 0.72) 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, rgba(232, 232, 232, 0.72) 75%),
        linear-gradient(-45deg, transparent 75%, rgba(232, 232, 232, 0.72) 75%);
      background-size: 20px 20px;
      background-position: 0 0, 0 10px, 10px -10px, -10px 0;
    }

    #previewCanvas,
    #highlightCanvas {
      position: absolute;
      inset: 0;
      image-rendering: pixelated;
      border-radius: 18px;
    }

    #previewCanvas {
      background: transparent;
      z-index: 1;
    }

    #highlightCanvas {
      pointer-events: none;
      z-index: 2;
    }

    .empty-preview {
      position: absolute;
      inset: 0;
      display: grid;
      place-items: center;
      padding: 28px;
      text-align: center;
      color: var(--ink-soft);
      font-size: 1rem;
      z-index: 0;
    }

    .inspector-grid {
      display: grid;
      gap: 14px;
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .preview-mode-row {
      align-items: stretch;
    }

    .preview-mode-row .mini-btn {
      min-width: 0;
    }

    .info-card {
      display: grid;
      gap: 10px;
      padding: 16px;
      border-radius: 20px;
      background: rgba(255, 255, 255, 0.72);
      border: 1px solid var(--line);
    }

    .info-card h4 {
      margin: 0;
      font-family: var(--header-font);
      font-size: 1.05rem;
    }

    .info-card p {
      margin: 0;
      color: var(--ink-soft);
      font-size: 0.92rem;
    }

    .swatch-line {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .swatch {
      width: 48px;
      height: 48px;
      border-radius: 16px;
      border: 1px solid rgba(72, 66, 57, 0.12);
      box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.32);
      flex: 0 0 auto;
    }

    .swatch.small {
      width: 36px;
      height: 36px;
      border-radius: 12px;
    }

    .code-line {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      align-items: center;
    }

    .mono {
      font-family: "Consolas", "Courier New", monospace;
      font-size: 0.93rem;
      letter-spacing: 0.01em;
    }

    .muted {
      color: var(--ink-soft);
    }

    .tomodachi-panel {
      display: grid;
      gap: 18px;
    }

    .tomodachi-canvas-wrap {
      display: grid;
      gap: 14px;
      padding: 18px;
      border-radius: 26px;
      background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.78), rgba(255, 249, 242, 0.78)),
        rgba(255, 255, 255, 0.55);
      border: 1px solid var(--line);
    }

    .canvas-label {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 10px;
      color: var(--ink-soft);
      font-size: 0.92rem;
      font-weight: 700;
    }

    #tomodachiPaletteCanvas,
    #tomodachiHueCanvas {
      width: 100%;
      border-radius: 18px;
      border: 1px solid rgba(72, 66, 57, 0.1);
    }

    #tomodachiPaletteCanvas {
      aspect-ratio: 16 / 9;
    }

    #tomodachiHueCanvas {
      aspect-ratio: 12 / 1;
    }

    .simulator-legend {
      display: grid;
      gap: 10px;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    }

    .simulator-legend-item {
      display: grid;
      gap: 6px;
      padding: 12px 14px;
      border-radius: 16px;
      background: rgba(255, 255, 255, 0.78);
      border: 1px solid var(--line);
    }

    .simulator-legend-head {
      display: flex;
      align-items: center;
      gap: 10px;
      min-width: 0;
    }

    .simulator-legend-head strong {
      font-size: 0.96rem;
    }

    .legend-dot {
      width: 18px;
      height: 18px;
      border-radius: 999px;
      border: 2px solid rgba(47, 49, 45, 0.88);
      box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.72);
      flex: 0 0 auto;
    }

    .legend-dot.secondary {
      border-style: dashed;
      border-color: rgba(51, 124, 115, 0.95);
      box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.8);
    }

    .simulator-legend-item .tiny {
      line-height: 1.45;
    }

    .detail-simulator {
      display: grid;
      gap: 14px;
      padding: 16px;
      border-radius: 20px;
      background: rgba(255, 255, 255, 0.68);
      border: 1px solid var(--line);
    }

    .detail-simulator canvas {
      width: 100%;
      border-radius: 16px;
      border: 1px solid rgba(72, 66, 57, 0.1);
    }

    .detail-simulator .palette-canvas {
      aspect-ratio: 16 / 9;
    }

    .detail-simulator .hue-canvas {
      aspect-ratio: 12 / 1;
    }

    .toggle-action-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .toggle-action-row .mini-btn.is-active {
      background: rgba(95, 166, 157, 0.16);
      border-color: rgba(95, 166, 157, 0.36);
      color: var(--accent-mint-deep);
    }

    .guide-box {
      display: grid;
      gap: 10px;
      padding: 16px;
      border-radius: 18px;
      background: rgba(95, 166, 157, 0.1);
      border: 1px solid rgba(95, 166, 157, 0.16);
      color: var(--ink);
    }

    .guide-box strong {
      font-size: 1rem;
    }

    .results-header {
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 14px;
      align-items: center;
      margin-bottom: 18px;
    }

    .results-toolbar {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .top10-strip,
    .recent-strip {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .color-chip {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 10px 12px;
      border-radius: 14px;
      background: rgba(255, 255, 255, 0.76);
      border: 1px solid var(--line);
      min-width: 0;
    }

    .color-chip button {
      all: unset;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      cursor: pointer;
      width: 100%;
    }

    .color-chip .meta {
      display: grid;
      min-width: 0;
    }

    .color-chip .meta strong {
      font-size: 0.9rem;
    }

    .color-chip .meta span {
      color: var(--ink-soft);
      font-size: 0.84rem;
    }

    .result-list {
      display: grid;
      gap: 14px;
    }

    .result-card {
      display: grid;
      gap: 14px;
      padding: 18px;
      border-radius: 22px;
      background: rgba(255, 255, 255, 0.78);
      border: 1px solid var(--line);
      transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
    }

    .result-card:hover,
    .result-card.is-active {
      transform: translateY(-2px);
      border-color: rgba(95, 166, 157, 0.42);
      box-shadow: 0 16px 32px rgba(95, 166, 157, 0.12);
    }

    .result-card-top {
      display: flex;
      justify-content: space-between;
      gap: 16px;
      align-items: flex-start;
    }

    .result-card-main {
      display: flex;
      gap: 14px;
      min-width: 0;
      flex: 1;
    }

    .result-card-main .swatch {
      width: 60px;
      height: 60px;
      border-radius: 20px;
    }

    .result-card-body {
      display: grid;
      gap: 8px;
      min-width: 0;
    }

    .result-card-title {
      display: flex;
      flex-wrap: wrap;
      gap: 8px 12px;
      align-items: center;
    }

    .result-card-title strong {
      font-size: 1.12rem;
      font-family: var(--header-font);
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      min-height: 28px;
      padding: 4px 10px;
      border-radius: 999px;
      background: rgba(255, 127, 96, 0.11);
      color: var(--accent-deep);
      font-weight: 800;
      font-size: 0.82rem;
    }

    .badge.alt {
      background: rgba(95, 166, 157, 0.12);
      color: var(--accent-mint-deep);
    }

    .badge.gray {
      background: rgba(92, 96, 87, 0.1);
      color: var(--ink-soft);
    }

    .result-meta-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 10px;
      font-size: 0.9rem;
      color: var(--ink-soft);
    }

    .meta-box {
      padding: 10px 12px;
      border-radius: 14px;
      background: rgba(252, 248, 243, 0.9);
      border: 1px solid rgba(130, 108, 83, 0.08);
    }

    .meta-box strong {
      display: block;
      margin-bottom: 2px;
      color: var(--ink);
    }

    .result-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      align-items: center;
    }

    .recognition-grid {
      display: grid;
      gap: 12px;
      grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    }

    .recognition-card {
      display: grid;
      gap: 10px;
      padding: 16px;
      border-radius: 18px;
      background: rgba(255, 255, 255, 0.78);
      border: 1px solid var(--line);
      text-align: left;
      transition: transform 0.18s ease, border-color 0.18s ease;
    }

    .recognition-card:hover {
      transform: translateY(-1px);
      border-color: rgba(255, 127, 96, 0.28);
    }

    .recognition-card-head {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .recognition-card-head .swatch.small {
      flex: 0 0 auto;
    }

    .recognition-card-head strong {
      font-size: 1rem;
      font-family: var(--header-font);
    }

    .recognition-card-count {
      font-size: 1.08rem;
      font-weight: 800;
      color: var(--ink);
    }

    .recognition-card .tiny {
      line-height: 1.5;
    }

    .ocr-preview-list {
      display: grid;
      gap: 10px;
      max-height: 280px;
      overflow: auto;
      padding-right: 4px;
    }

    .ocr-preview-row {
      display: grid;
      gap: 6px;
      padding: 12px 14px;
      border-radius: 16px;
      background: rgba(255, 255, 255, 0.78);
      border: 1px solid var(--line);
    }

    .ocr-preview-row strong {
      font-size: 0.95rem;
      color: var(--ink);
    }

    .ocr-preview-row .meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      color: var(--ink-soft);
      font-size: 0.84rem;
    }

    .empty-state {
      padding: 18px;
      border-radius: 20px;
      border: 1px dashed rgba(95, 166, 157, 0.3);
      background: rgba(255, 255, 255, 0.58);
      color: var(--ink-soft);
    }

    .palette-browser-grid {
      display: grid;
      gap: 12px;
      grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }

    .palette-card {
      display: grid;
      gap: 10px;
      padding: 12px;
      border-radius: 18px;
      background: rgba(255, 255, 255, 0.78);
      border: 1px solid var(--line);
      transition: transform 0.18s ease, border-color 0.18s ease;
      text-align: left;
    }

    .palette-card:hover,
    .palette-card.is-active {
      transform: translateY(-2px);
      border-color: rgba(255, 127, 96, 0.38);
    }

    .palette-card .swatch {
      width: 100%;
      aspect-ratio: 1 / 1;
      height: auto;
      border-radius: 18px;
    }

    .palette-card strong {
      font-size: 1.02rem;
      font-family: var(--header-font);
    }

    .palette-card span {
      color: var(--ink-soft);
      font-size: 0.86rem;
      word-break: break-all;
    }

    .detail-overlay {
      position: fixed;
      inset: 0;
      background: rgba(40, 32, 26, 0.38);
      backdrop-filter: blur(8px);
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.22s ease;
      z-index: 40;
    }

    .detail-overlay.is-open {
      opacity: 1;
      pointer-events: auto;
    }

    .detail-drawer {
      position: fixed;
      top: 18px;
      right: 18px;
      bottom: 18px;
      width: min(460px, calc(100% - 24px));
      padding: 20px;
      border-radius: 30px;
      background: rgba(255, 250, 244, 0.96);
      border: 1px solid rgba(255, 255, 255, 0.74);
      box-shadow: 0 28px 80px rgba(35, 28, 24, 0.22);
      transform: translateX(110%);
      transition: transform 0.28s ease;
      z-index: 50;
      display: grid;
      grid-template-rows: auto 1fr;
      gap: 16px;
    }

    .detail-drawer.is-open {
      transform: translateX(0);
    }

    .drawer-header {
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
      gap: 12px;
    }

    .drawer-header h3 {
      margin: 0;
      font-family: var(--header-font);
      font-size: 1.48rem;
    }

    .drawer-content {
      overflow: auto;
      padding-right: 6px;
      display: grid;
      gap: 16px;
      align-content: start;
    }

    .big-swatch {
      height: 160px;
      border-radius: 24px;
      border: 1px solid rgba(72, 66, 57, 0.12);
      box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.32);
    }

    .detail-grid {
      display: grid;
      gap: 10px;
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .detail-item {
      padding: 14px;
      border-radius: 16px;
      background: rgba(255, 255, 255, 0.72);
      border: 1px solid var(--line);
    }

    .detail-item strong {
      display: block;
      margin-bottom: 4px;
      font-size: 0.9rem;
      color: var(--ink-soft);
    }

    .detail-item span {
      display: block;
      color: var(--ink);
      word-break: break-word;
    }

    .candidate-list {
      display: grid;
      gap: 10px;
    }

    .candidate-row {
      display: flex;
      gap: 12px;
      align-items: center;
      padding: 12px;
      border-radius: 16px;
      background: rgba(255, 255, 255, 0.74);
      border: 1px solid var(--line);
    }

    .candidate-row .rank {
      min-width: 2rem;
      font-weight: 900;
      color: var(--accent-mint-deep);
    }

    .candidate-row .text {
      display: grid;
      gap: 2px;
      min-width: 0;
      flex: 1;
    }

    .candidate-row .text span {
      color: var(--ink-soft);
      font-size: 0.88rem;
    }

    .helper-box {
      padding: 14px 16px;
      border-radius: 18px;
      background: rgba(255, 242, 224, 0.8);
      border: 1px solid rgba(226, 185, 101, 0.22);
      color: var(--ink);
      font-size: 0.95rem;
    }

    .toast-wrap {
      position: fixed;
      left: 50%;
      bottom: 18px;
      transform: translateX(-50%);
      display: grid;
      gap: 10px;
      z-index: 80;
      pointer-events: none;
    }

    .toast {
      min-width: min(92vw, 360px);
      padding: 12px 16px;
      border-radius: 16px;
      background: rgba(47, 49, 45, 0.92);
      color: #fffdf9;
      box-shadow: 0 18px 40px rgba(20, 16, 12, 0.24);
      animation: toast-in 0.25s ease forwards;
    }

    .tiny {
      font-size: 0.82rem;
      color: var(--ink-soft);
    }

    .sr-only {
      position: absolute;
      width: 1px;
      height: 1px;
      padding: 0;
      margin: -1px;
      overflow: hidden;
      clip: rect(0, 0, 0, 0);
      white-space: nowrap;
      border: 0;
    }

    @keyframes fade-up {
      from {
        opacity: 0;
        transform: translateY(10px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
    }
  }

  :root {
    --app-bg: #fff8f3;
    --app-surface: rgba(255, 250, 246, 0.92);
    --app-surface-strong: #fffdfb;
    --app-panel: rgba(255, 253, 251, 0.94);
    --app-line: rgba(226, 172, 156, 0.28);
    --app-line-strong: rgba(226, 144, 124, 0.42);
    --app-text: #2f2725;
    --app-text-soft: #756764;
    --app-accent: #f28983;
    --app-accent-strong: #ea6c66;
    --app-accent-soft: rgba(242, 137, 131, 0.14);
    --app-shadow: 0 24px 50px rgba(171, 105, 88, 0.1);
  }

  body {
    background:
      radial-gradient(circle at top right, rgba(255, 203, 195, 0.48), transparent 24%),
      radial-gradient(circle at top left, rgba(255, 233, 210, 0.52), transparent 18%),
      linear-gradient(180deg, #fffdfb 0%, #fff7f1 54%, #fff3eb 100%);
    color: var(--app-text);
  }

  body[data-theme="dark"] {
    --app-bg: #161313;
    --app-surface: rgba(30, 25, 25, 0.88);
    --app-surface-strong: #231d1d;
    --app-panel: rgba(35, 28, 28, 0.94);
    --app-line: rgba(255, 186, 172, 0.14);
    --app-line-strong: rgba(255, 186, 172, 0.26);
    --app-text: #f6ece7;
    --app-text-soft: #cdbbb3;
    --app-accent: #ff958d;
    --app-accent-strong: #ff7b73;
    --app-accent-soft: rgba(255, 149, 141, 0.16);
    --app-shadow: 0 24px 60px rgba(0, 0, 0, 0.26);
  }

  body[data-theme="dark"] {
    background:
      radial-gradient(circle at top right, rgba(106, 53, 53, 0.48), transparent 24%),
      radial-gradient(circle at top left, rgba(81, 55, 44, 0.36), transparent 18%),
      linear-gradient(180deg, #110f0f 0%, #171313 54%, #1c1717 100%);
    color: var(--app-text);
  }

  .sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }

  .app-shell {
    min-height: 100vh;
    padding: 18px;
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 18px;
  }

  .sidebar-backdrop {
    display: none;
  }

  .app-sidebar,
  .workspace-topbar,
  .view-panel,
  .detail-rail,
  .info-modal {
    background: var(--app-surface);
    border: 1px solid var(--app-line);
    box-shadow: var(--app-shadow);
    backdrop-filter: blur(16px);
  }

  .app-sidebar {
    position: sticky;
    top: 18px;
    height: calc(100vh - 36px);
    padding: 22px;
    border-radius: 28px;
    display: grid;
    grid-template-rows: auto auto 1fr auto;
    gap: 18px;
  }

  .sidebar-brand {
    display: flex;
    align-items: flex-start;
    gap: 14px;
  }

  .brand-mark {
    width: 56px;
    height: 56px;
    border-radius: 18px;
    display: grid;
    place-items: center;
    font-size: 1.9rem;
    background: linear-gradient(135deg, rgba(255, 234, 229, 0.98), rgba(255, 247, 243, 0.98));
    border: 1px solid rgba(244, 141, 128, 0.28);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.75);
  }

  .brand-copy {
    display: grid;
    gap: 6px;
  }

  .brand-copy strong {
    font-family: var(--header-font);
    font-size: 1.36rem;
    line-height: 1.2;
    color: var(--app-text);
  }

  .brand-copy span {
    color: var(--app-text-soft);
    font-size: 0.93rem;
  }

  .sidebar-band-panel {
    padding: 12px;
    border-radius: 18px;
    border: 1px solid var(--app-line);
    background: rgba(255, 255, 255, 0.42);
    display: grid;
    gap: 10px;
  }

  .sidebar-band-row {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 7px;
  }

  .sidebar-band-row span {
    aspect-ratio: 1;
    border-radius: 999px;
    min-height: 12px;
    border: 1px solid rgba(255, 255, 255, 0.72);
  }

  .side-nav {
    display: grid;
    align-content: start;
    gap: 10px;
  }

  .side-nav-btn {
    width: 100%;
    border: 1px solid transparent;
    border-radius: 18px;
    padding: 14px 16px;
    background: transparent;
    color: var(--app-text-soft);
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
  }

  .side-nav-btn:hover,
  .side-nav-btn.is-active {
    background: var(--app-accent-soft);
    border-color: var(--app-line-strong);
    color: var(--app-accent-strong);
    transform: translateX(2px);
  }

  .nav-icon {
    width: 28px;
    height: 28px;
    border-radius: 10px;
    display: grid;
    place-items: center;
    background: rgba(255, 255, 255, 0.54);
    border: 1px solid rgba(255, 255, 255, 0.65);
    font-size: 0.98rem;
  }

  .sidebar-foot-card {
    padding: 16px;
    border-radius: 20px;
    background: var(--app-panel);
    border: 1px solid var(--app-line);
    display: grid;
    gap: 4px;
  }

  .sidebar-foot-card strong {
    font-size: 1.45rem;
    color: var(--app-accent-strong);
  }

  .workspace-shell {
    min-width: 0;
    display: grid;
    gap: 18px;
  }

  .workspace-topbar {
    border-radius: 24px;
    padding: 18px 22px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
  }

  .topbar-leading {
    display: flex;
    align-items: center;
    gap: 14px;
  }

  .topbar-eyebrow {
    color: var(--app-accent-strong);
    font-size: 0.84rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  .workspace-topbar h1 {
    margin: 2px 0 0;
    font-family: var(--header-font);
    font-size: 1.75rem;
    color: var(--app-text);
  }

  .topbar-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 10px;
  }

  .topbar-btn,
  .icon-btn {
    border: 1px solid var(--app-line);
    background: var(--app-panel);
    color: var(--app-text);
    border-radius: 16px;
    padding: 12px 16px;
    font-weight: 600;
    transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
  }

  .icon-btn {
    padding-inline: 14px;
  }

  .topbar-btn:hover,
  .icon-btn:hover {
    transform: translateY(-1px);
    border-color: var(--app-line-strong);
    background: rgba(255, 255, 255, 0.8);
  }

  .mobile-only {
    display: none;
  }

  .workspace-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 380px;
    gap: 18px;
    align-items: start;
  }

  .workspace-main {
    min-width: 0;
  }

  .view-panel {
    display: none;
    border-radius: 30px;
    padding: 26px;
    animation: view-fade 0.24s ease;
  }

  .view-panel.is-active {
    display: block;
  }

  @keyframes view-fade {
    from {
      opacity: 0;
      transform: translateY(8px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .view-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 22px;
  }

  .view-header h2 {
    margin: 0 0 6px;
    font-family: var(--header-font);
    font-size: 2rem;
    color: var(--app-text);
  }

  .view-header p {
    margin: 0;
    color: var(--app-text-soft);
  }

  .view-header-meta,
  .view-header-actions {
    display: flex;
    gap: 10px;
    align-items: center;
  }

  .dashboard-grid {
    display: grid;
    gap: 18px;
  }

  .overview-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .preview-panel-main,
  .simulator-summary-panel {
    grid-column: span 2;
  }

  .analysis-grid,
  .palette-grid,
  .history-grid,
  .settings-page-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .analysis-grid > .panel:nth-child(1),
  .analysis-grid > .panel:nth-child(5) {
    grid-column: span 12;
  }

  .analysis-grid > .panel:nth-child(2) {
    grid-column: span 5;
  }

  .analysis-grid > .panel:nth-child(3) {
    grid-column: span 3;
  }

  .analysis-grid > .panel:nth-child(4) {
    grid-column: span 4;
  }

  .palette-grid > .panel:nth-child(1),
  .palette-grid > .panel:nth-child(2),
  .palette-grid > .panel:nth-child(3),
  .palette-grid > .panel:nth-child(4),
  .history-grid > .panel {
    grid-column: span 12;
  }

  .palette-grid > .panel:nth-child(4) {
    grid-column: span 4;
  }

  .palette-grid > .panel:nth-child(5) {
    grid-column: span 8;
  }

  .settings-page-grid > .panel {
    grid-column: span 4;
  }

  .panel {
    background: var(--app-panel);
    border: 1px solid var(--app-line);
    box-shadow: none;
  }

  .panel::before {
    display: none;
  }

  .metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 14px;
  }

  .metric-card {
    padding: 18px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid var(--app-line);
    display: grid;
    gap: 8px;
  }

  .metric-card .metric-label {
    color: var(--app-text-soft);
    font-size: 0.88rem;
  }

  .metric-card .metric-value {
    font-size: 1.8rem;
    font-weight: 800;
    line-height: 1;
    color: var(--app-text);
  }

  .metric-card .metric-note {
    color: var(--app-text-soft);
    font-size: 0.92rem;
  }

  .analysis-chart-layout {
    display: grid;
    grid-template-columns: minmax(0, 260px) minmax(0, 1fr);
    gap: 20px;
    align-items: center;
  }

  .analysis-donut-wrap {
    display: grid;
    place-items: center;
  }

  .analysis-donut {
    width: min(240px, 100%);
    aspect-ratio: 1;
    border-radius: 50%;
    position: relative;
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid var(--app-line);
    display: grid;
    place-items: center;
    overflow: hidden;
  }

  .analysis-donut .donut-hole {
    width: 58%;
    aspect-ratio: 1;
    border-radius: 50%;
    background: var(--app-panel);
    display: grid;
    place-items: center;
    text-align: center;
    padding: 14px;
    border: 1px solid var(--app-line);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5);
  }

  .analysis-donut .donut-hole strong {
    display: block;
    font-size: 1.45rem;
  }

  .analysis-legend,
  .analysis-ranking,
  .history-list {
    display: grid;
    gap: 12px;
  }

  .legend-row,
  .ranking-row {
    display: grid;
    grid-template-columns: auto auto 1fr auto;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border-radius: 16px;
    border: 1px solid var(--app-line);
    background: rgba(255, 255, 255, 0.56);
  }

  .legend-swatch,
  .ranking-swatch {
    width: 22px;
    height: 22px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.78);
  }

  .ranking-rank {
    width: 28px;
    height: 28px;
    border-radius: 999px;
    display: grid;
    place-items: center;
    background: var(--app-accent-soft);
    color: var(--app-accent-strong);
    font-weight: 700;
    font-size: 0.85rem;
  }

  .analysis-heatmap-wrap {
    border-radius: 22px;
    overflow: hidden;
    border: 1px solid var(--app-line);
    background: rgba(255, 255, 255, 0.62);
  }

  #analysisHeatmapCanvas {
    width: 100%;
    height: auto;
    min-height: 280px;
    background:
      linear-gradient(180deg, rgba(255, 255, 255, 0.26), rgba(255, 255, 255, 0.05)),
      #f8f1ea;
  }

  .advanced-panel {
    overflow: hidden;
  }

  .advanced-summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
  }

  .advanced-summary::-webkit-details-marker {
    display: none;
  }

  .advanced-body {
    display: grid;
    gap: 16px;
    margin-top: 18px;
  }

  .inline-heading {
    margin-bottom: 0;
  }

  .filter-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
  }

  .filter-row > * {
    flex: 1 1 180px;
  }

  .checkbox-inline {
    min-height: 50px;
    padding: 0 14px;
    border-radius: 16px;
    border: 1px solid var(--app-line);
    background: rgba(255, 255, 255, 0.62);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--app-text-soft);
    font-weight: 600;
  }

  .palette-browser-panel {
    overflow: hidden;
  }

  .palette-browser-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .palette-card {
    position: relative;
    text-align: left;
    background: rgba(255, 255, 255, 0.72);
  }

  .palette-card .palette-fav-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    z-index: 1;
    width: 34px;
    height: 34px;
    border-radius: 999px;
    border: 1px solid var(--app-line);
    background: rgba(255, 255, 255, 0.8);
    color: var(--app-text-soft);
    display: grid;
    place-items: center;
  }

  .palette-card .palette-fav-btn.is-active {
    color: var(--app-accent-strong);
    border-color: rgba(242, 137, 131, 0.38);
    background: rgba(255, 240, 237, 0.92);
  }

  .recent-strip {
    min-height: 84px;
  }

  .history-card {
    display: grid;
    grid-template-columns: 112px minmax(0, 1fr);
    gap: 16px;
    padding: 16px;
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.62);
    border: 1px solid var(--app-line);
  }

  .history-thumbnail {
    width: 112px;
    height: 112px;
    border-radius: 18px;
    overflow: hidden;
    background: linear-gradient(135deg, #fff8f1, #fde9e4);
    border: 1px solid var(--app-line);
  }

  .history-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .history-card-body {
    display: grid;
    gap: 10px;
    min-width: 0;
  }

  .history-card-header {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: flex-start;
  }

  .history-card-header strong {
    font-size: 1.05rem;
  }

  .history-card-meta,
  .history-card-swatches,
  .history-card-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }

  .history-badge,
  .mini-tag {
    padding: 6px 10px;
    border-radius: 999px;
    background: var(--app-accent-soft);
    color: var(--app-accent-strong);
    font-size: 0.84rem;
    font-weight: 700;
  }

  .history-card-actions .mini-btn {
    background: rgba(255, 255, 255, 0.76);
  }

  .settings-page-grid {
    gap: 18px;
  }

  .detail-overlay {
    display: none;
  }

  .workspace-grid .detail-rail {
    position: sticky;
    top: 0;
    right: auto;
    bottom: auto;
    width: auto;
    max-width: none;
    min-height: calc(100vh - 144px);
    max-height: calc(100vh - 144px);
    transform: none;
    border-radius: 30px;
    background: var(--app-surface);
    box-shadow: var(--app-shadow);
  }

  .workspace-grid .detail-rail:not(.is-open) {
    transform: none;
  }

  .workspace-grid .detail-rail .drawer-content {
    padding-right: 2px;
  }

  .modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(18, 12, 12, 0.4);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 18px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.24s ease;
    z-index: 70;
  }

  .modal-overlay.is-open {
    opacity: 1;
    pointer-events: auto;
  }

  .info-modal {
    width: min(720px, 100%);
    border-radius: 28px;
    padding: 22px;
    max-height: min(84vh, 820px);
    overflow: auto;
  }

  .modal-body {
    color: var(--app-text-soft);
    display: grid;
    gap: 14px;
  }

  .modal-body h4,
  .modal-body p {
    margin: 0;
  }

  .modal-body h4 {
    color: var(--app-text);
    font-size: 1rem;
  }

  .inline-toolbar {
    margin-bottom: 14px;
  }

  body[data-theme="dark"] .app-sidebar,
  body[data-theme="dark"] .workspace-topbar,
  body[data-theme="dark"] .view-panel,
  body[data-theme="dark"] .detail-rail,
  body[data-theme="dark"] .info-modal,
  body[data-theme="dark"] .metric-card,
  body[data-theme="dark"] .legend-row,
  body[data-theme="dark"] .ranking-row,
  body[data-theme="dark"] .history-card,
  body[data-theme="dark"] .checkbox-inline,
  body[data-theme="dark"] .palette-card,
  body[data-theme="dark"] .palette-card .palette-fav-btn,
  body[data-theme="dark"] .topbar-btn,
  body[data-theme="dark"] .icon-btn {
    background: rgba(37, 29, 29, 0.92);
    color: var(--app-text);
  }

  body[data-theme="dark"] .panel,
  body[data-theme="dark"] .helper-box,
  body[data-theme="dark"] .guide-box,
  body[data-theme="dark"] .upload-area,
  body[data-theme="dark"] .info-card,
  body[data-theme="dark"] .preview-shell,
  body[data-theme="dark"] .result-card,
  body[data-theme="dark"] .ocr-preview-item,
  body[data-theme="dark"] .recognition-card,
  body[data-theme="dark"] .meta-box,
  body[data-theme="dark"] .candidate-row,
  body[data-theme="dark"] .color-chip button {
    background: rgba(40, 31, 31, 0.9);
    border-color: var(--app-line);
    color: var(--app-text);
  }

  @media (max-width: 1180px) {
    .app-shell {
      grid-template-columns: 1fr;
    }

    .app-sidebar {
      position: fixed;
      inset: 18px auto 18px 18px;
      width: min(320px, calc(100vw - 52px));
      height: auto;
      max-height: calc(100vh - 36px);
      transform: translateX(-118%);
      transition: transform 0.22s ease;
      z-index: 80;
    }

    .app-shell.mobile-nav-open .app-sidebar {
      transform: translateX(0);
    }

    .app-shell.mobile-nav-open .sidebar-backdrop {
      display: block;
      position: fixed;
      inset: 0;
      background: rgba(18, 12, 12, 0.38);
      backdrop-filter: blur(8px);
      z-index: 70;
    }

    .mobile-only {
      display: inline-flex;
    }

    .workspace-grid {
      grid-template-columns: 1fr;
    }

    .workspace-grid .detail-rail {
      position: fixed;
      left: 12px;
      right: 12px;
      bottom: 12px;
      top: auto;
      width: auto;
      max-height: min(84vh, 860px);
      min-height: auto;
      transform: translateY(108%);
      z-index: 75;
    }

    .workspace-grid .detail-rail.is-open {
      transform: translateY(0);
    }

    .detail-overlay {
      display: block;
      opacity: 0;
      pointer-events: none;
      z-index: 74;
    }

    .detail-overlay.is-open {
      opacity: 1;
      pointer-events: auto;
    }
  }

  @media (max-width: 920px) {
    .overview-grid,
    .analysis-chart-layout {
      grid-template-columns: 1fr;
    }

    .analysis-grid > .panel,
    .palette-grid > .panel,
    .history-grid > .panel,
    .settings-page-grid > .panel {
      grid-column: span 12;
    }

    .preview-panel-main,
    .simulator-summary-panel {
      grid-column: span 1;
    }

    .workspace-topbar,
    .view-header,
    .history-card,
    .history-card-header {
      flex-direction: column;
      align-items: stretch;
    }

    .topbar-actions {
      justify-content: flex-start;
    }

    .palette-browser-grid {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
  }

  @media (max-width: 640px) {
    .app-shell {
      padding: 10px;
      gap: 10px;
    }

    .workspace-topbar,
    .view-panel,
    .detail-rail,
    .info-modal {
      border-radius: 22px;
      padding: 18px;
    }

    .view-header h2 {
      font-size: 1.6rem;
    }

    .palette-browser-grid {
      grid-template-columns: 1fr;
    }

    .filter-row {
      flex-direction: column;
    }

    .history-card {
      grid-template-columns: 1fr;
    }

    .history-thumbnail {
      width: 100%;
      height: 180px;
    }
  }

    @keyframes toast-in {
      from {
        opacity: 0;
        transform: translateY(10px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    @media (max-width: 1120px) {
      .hero-grid,
      .app-grid {
        grid-template-columns: 1fr;
      }

      .hero-copy {
        min-height: 0;
      }
    }

    @media (max-width: 760px) {
      .page-shell {
        width: min(100% - 16px, var(--page-width));
        padding-top: 14px;
        padding-bottom: 28px;
      }

      .hero,
      .panel {
        padding: 18px;
        border-radius: 24px;
      }

      .preview-shell {
        padding: 10px;
      }

      .inspector-grid,
      .detail-grid,
      .result-meta-grid {
        grid-template-columns: 1fr;
      }

      .palette-browser-grid {
        grid-template-columns: repeat(auto-fill, minmax(104px, 1fr));
      }

      .detail-drawer {
        left: 8px;
        right: 8px;
        top: auto;
        bottom: 8px;
        width: auto;
        max-height: min(84vh, 760px);
        border-radius: 26px 26px 22px 22px;
        transform: translateY(110%);
      }

      .detail-drawer.is-open {
        transform: translateY(0);
      }
    }

    :root {
      --bg: #FAF8F6;
      --bg-strong: #F5E9E2;
      --surface: #FFFDFC;
      --surface-strong: #FFFDFC;
      --panel: #FFFDFC;
      --line: #EFE3DD;
      --line-strong: #E4D2CB;
      --ink: #211D1B;
      --ink-soft: #6E6661;
      --accent: #E89CA9;
      --accent-strong: #D98593;
      --accent-soft: rgba(232, 156, 169, 0.14);
      --shadow: 0 10px 30px rgba(41, 30, 24, 0.05);
      --radius-xl: 16px;
      --radius-lg: 16px;
      --radius-md: 16px;
      --radius-sm: 16px;
      --page-width: 1360px;
      --header-font: "Inter", "Noto Sans TC", "Microsoft JhengHei", "PingFang TC", sans-serif;
      --body-font: "Inter", "Noto Sans TC", "Microsoft JhengHei", "PingFang TC", sans-serif;
    }

    html,
    body {
      background: var(--bg);
    }

    body {
      color: var(--ink);
      font-family: var(--body-font);
      -webkit-font-smoothing: antialiased;
      text-rendering: optimizeLegibility;
      background-image: none;
      line-height: 1.6;
    }

    .page-shell {
      width: min(var(--page-width), calc(100% - 32px));
      padding: 20px 0 40px;
    }

    .hero {
      padding: 24px;
      border-radius: 16px;
      background: var(--surface);
      border: 1px solid var(--line);
      box-shadow: var(--shadow);
    }

    .hero::before,
    .hero::after,
    .panel::before {
      display: none;
    }

    .hero-grid {
      grid-template-columns: 1fr;
      gap: 16px;
    }

    .hero-copy {
      min-height: 0;
      gap: 14px;
    }

    .hero-visual {
      display: none;
    }

    .eyebrow,
    .hero-note,
    .pill {
      border-radius: 999px;
      border: 1px solid var(--line);
      background: var(--bg-strong);
      color: var(--ink-soft);
      box-shadow: none;
      backdrop-filter: none;
    }

    .eyebrow {
      padding: 8px 14px;
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--ink);
    }

    .hero h1 {
      font-family: var(--header-font);
      font-size: clamp(2rem, 3.6vw, 2.8rem);
      line-height: 1.08;
      letter-spacing: -0.03em;
    }

    .hero p {
      max-width: 46rem;
      font-size: 1rem;
      color: var(--ink-soft);
    }

    .hero-notes {
      gap: 10px;
      margin-top: 0;
    }

    .hero-note {
      padding: 10px 14px;
      font-size: 0.9rem;
      font-weight: 600;
    }

    .tabs-shell,
    .app-grid,
    .left-stack,
    .right-stack,
    .single-stack,
    .settings-grid,
    .form-grid,
    .preview-panel,
    .result-list {
      gap: 24px;
    }

    .tab-bar {
      width: fit-content;
      max-width: 100%;
      padding: 6px;
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: 16px;
      box-shadow: var(--shadow);
      animation: none;
    }

    .tab-btn {
      min-height: 48px;
      padding: 0 16px;
      border-radius: 12px;
      background: transparent;
      border: 1px solid transparent;
      color: var(--ink-soft);
      box-shadow: none;
      gap: 10px;
    }

    .tab-btn:hover {
      background: rgba(245, 233, 226, 0.65);
      border-color: var(--line);
      color: var(--ink);
      transform: translateY(-1px);
    }

    .tab-btn.is-active {
      background: var(--bg-strong);
      border-color: var(--line-strong);
      color: var(--ink);
      box-shadow: none;
    }

    .tab-btn .swatch.small {
      width: 30px;
      height: 30px;
      border-radius: 10px;
    }

    .panel,
    .upload-area,
    .toggle-card,
    .info-card,
    .result-card,
    .palette-card,
    .color-chip,
    .meta-box,
    .guide-box,
    .helper-box,
    .detail-simulator,
    .detail-item,
    .candidate-row,
    .simulator-legend-item,
    .visual-card {
      border-radius: 16px;
      background: var(--surface);
      border: 1px solid var(--line);
      box-shadow: var(--shadow);
      backdrop-filter: none;
    }

    .panel {
      padding: 24px;
      overflow: visible;
      animation-duration: 0.22s;
    }

    .panel-title-row {
      margin-bottom: 20px;
      gap: 16px;
    }

    .panel-title-row h2,
    .panel-title-row h3,
    .info-card h4,
    .drawer-header h3 {
      font-family: var(--header-font);
      letter-spacing: -0.02em;
    }

    .panel-title-row h2,
    .panel-title-row h3 {
      font-size: clamp(1.14rem, 1.8vw, 1.4rem);
      line-height: 1.2;
    }

    .panel-subtitle,
    .toggle-text span,
    .tiny,
    .muted,
    .info-card p,
    .detail-item strong,
    .color-chip .meta span,
    .candidate-row .text span,
    .meta-box,
    .empty-state,
    .helper-box,
    .guide-box,
    .canvas-label {
      color: var(--ink-soft);
    }

    .pill {
      min-height: 34px;
      padding: 8px 14px;
      color: var(--accent-strong);
      font-weight: 700;
      background: rgba(232, 156, 169, 0.08);
      border-color: rgba(232, 156, 169, 0.24);
    }

    .upload-area {
      gap: 16px;
      padding: 20px;
      background: linear-gradient(180deg, rgba(245, 233, 226, 0.55), rgba(255, 253, 252, 0.95));
      border: 1px dashed var(--line-strong);
    }

    .upload-area strong,
    .toggle-text strong,
    .meta-box strong,
    .result-card-title strong,
    .palette-card strong {
      color: var(--ink);
    }

    .text-input,
    .select-input,
    .number-input {
      min-height: 48px;
      padding: 12px 14px;
      border-radius: 16px;
      border: 1px solid var(--line);
      background: #FFFFFF;
      color: var(--ink);
      box-shadow: none;
    }

    .text-input:focus,
    .select-input:focus,
    .number-input:focus {
      border-color: rgba(232, 156, 169, 0.52);
      box-shadow: 0 0 0 4px rgba(232, 156, 169, 0.12);
      transform: none;
    }

    .toggle-card {
      padding: 16px;
      gap: 12px;
      box-shadow: none;
    }

    .toggle-card input[type="checkbox"],
    .toggle-card input[type="radio"] {
      accent-color: var(--accent);
    }

    .button-row,
    .results-toolbar,
    .result-actions,
    .toggle-action-row {
      gap: 12px;
    }

    .primary-btn,
    .secondary-btn,
    .ghost-btn,
    .mini-btn {
      min-height: 44px;
      padding: 0 16px;
      border-radius: 16px;
      font-weight: 700;
      letter-spacing: 0;
      transition: background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease, transform 0.18s ease;
      box-shadow: none;
    }

    .primary-btn {
      background: var(--accent);
      color: #fff;
      border: 1px solid transparent;
    }

    .secondary-btn {
      background: rgba(232, 156, 169, 0.1);
      color: var(--accent-strong);
      border: 1px solid rgba(232, 156, 169, 0.2);
    }

    .ghost-btn,
    .mini-btn {
      background: #FFFFFF;
      color: var(--ink);
      border: 1px solid var(--line);
    }

    .primary-btn:hover,
    .secondary-btn:hover,
    .ghost-btn:hover,
    .mini-btn:hover {
      transform: translateY(-1px);
      filter: none;
    }

    .primary-btn:hover {
      background: var(--accent-strong);
    }

    .secondary-btn:hover {
      background: rgba(232, 156, 169, 0.16);
      border-color: rgba(232, 156, 169, 0.3);
    }

    .ghost-btn:hover,
    .mini-btn:hover {
      background: var(--bg-strong);
      border-color: var(--line-strong);
    }

    .preview-toolbar {
      padding: 0;
      gap: 16px;
    }

    .preview-shell {
      padding: 12px;
      border-radius: 16px;
      border: 1px solid var(--line);
      background: #FFFFFF;
      background-image:
        linear-gradient(45deg, rgba(219, 219, 219, 0.42) 25%, transparent 25%),
        linear-gradient(-45deg, rgba(219, 219, 219, 0.42) 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, rgba(219, 219, 219, 0.42) 75%),
        linear-gradient(-45deg, transparent 75%, rgba(219, 219, 219, 0.42) 75%);
      background-size: 18px 18px;
      background-position: 0 0, 0 9px, 9px -9px, -9px 0;
    }

    .preview-stage {
      border-radius: 12px;
      background:
        linear-gradient(45deg, rgba(236, 236, 236, 0.8) 25%, transparent 25%),
        linear-gradient(-45deg, rgba(236, 236, 236, 0.8) 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, rgba(236, 236, 236, 0.8) 75%),
        linear-gradient(-45deg, transparent 75%, rgba(236, 236, 236, 0.8) 75%);
      background-size: 18px 18px;
      background-position: 0 0, 0 9px, 9px -9px, -9px 0;
      border: 1px solid var(--line);
    }

    #previewCanvas,
    #highlightCanvas,
    #tomodachiPaletteCanvas,
    #tomodachiHueCanvas,
    #paletteTomodachiPaletteCanvas,
    #paletteTomodachiHueCanvas,
    .detail-simulator canvas {
      border-radius: 12px;
      border: 1px solid var(--line);
    }

    .empty-preview {
      padding: 24px;
      font-size: 0.98rem;
    }

    .info-card,
    .guide-box,
    .helper-box,
    .detail-simulator,
    .detail-item,
    .candidate-row,
    .simulator-legend-item,
    .meta-box {
      box-shadow: none;
    }

    .guide-box,
    .helper-box,
    .meta-box,
    .toggle-card,
    .simulator-legend-item {
      background: rgba(245, 233, 226, 0.38);
    }

    .tomodachi-canvas-wrap,
    .detail-simulator {
      padding: 16px;
      gap: 16px;
      background: #FFFFFF;
      border-radius: 16px;
      border: 1px solid var(--line);
      box-shadow: none;
    }

    .canvas-label {
      font-size: 0.84rem;
      font-weight: 600;
    }

    .simulator-legend {
      gap: 12px;
    }

    .simulator-legend-item {
      padding: 14px;
    }

    .legend-dot {
      box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.95);
    }

    .legend-dot.secondary {
      border-color: var(--accent);
      box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.95);
    }

    .palette-simulator-layout {
      display: grid;
      grid-template-columns: minmax(0, 1fr) minmax(280px, 320px);
      gap: 24px;
      align-items: start;
    }

    .palette-simulator-main,
    .palette-simulator-side {
      display: grid;
      gap: 16px;
      align-content: start;
    }

    .palette-simulator-meta {
      display: grid;
      gap: 14px;
      padding: 16px;
      border-radius: 16px;
      background: rgba(245, 233, 226, 0.38);
      border: 1px solid var(--line);
    }

    .palette-simulator-side .simulator-legend {
      grid-template-columns: 1fr;
    }

    .palette-guide-box {
      gap: 14px;
      min-height: 180px;
      justify-content: start;
    }

    .results-header {
      margin-bottom: 20px;
    }

    .top10-strip,
    .recent-strip {
      gap: 12px;
    }

    .color-chip {
      padding: 10px 12px;
      box-shadow: none;
    }

    .result-list {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    }

    .result-card {
      display: flex;
      flex-direction: column;
      gap: 16px;
      padding: 20px;
      box-shadow: none;
      transition: border-color 0.18s ease, transform 0.18s ease, background-color 0.18s ease;
    }

    .result-card:hover,
    .result-card.is-active,
    .palette-card:hover,
    .palette-card.is-active {
      transform: translateY(-1px);
      box-shadow: none;
      border-color: rgba(232, 156, 169, 0.4);
      background: rgba(245, 233, 226, 0.18);
    }

    .result-card-main .swatch {
      width: 56px;
      height: 56px;
      border-radius: 16px;
    }

    .result-card-title {
      gap: 8px 10px;
    }

    .result-card-title strong {
      font-size: 1.04rem;
      font-family: var(--header-font);
    }

    .badge {
      min-height: 26px;
      padding: 4px 10px;
      border-radius: 999px;
      background: rgba(232, 156, 169, 0.1);
      color: var(--accent-strong);
      font-size: 0.8rem;
    }

    .badge.alt {
      background: rgba(232, 156, 169, 0.16);
      color: var(--accent-strong);
    }

    .badge.gray {
      background: rgba(245, 233, 226, 0.55);
      color: var(--ink-soft);
    }

    .result-meta-grid {
      gap: 12px;
    }

    .result-actions {
      margin-top: auto;
      padding-top: 4px;
    }

    .palette-browser-grid {
      gap: 16px;
      grid-template-columns: repeat(auto-fill, minmax(132px, 1fr));
    }

    .palette-card {
      padding: 14px;
      gap: 10px;
      text-align: left;
      box-shadow: none;
    }

    .palette-card .swatch {
      border-radius: 14px;
    }

    .swatch,
    .swatch.small,
    .big-swatch {
      border-radius: 16px;
      border: 1px solid rgba(232, 156, 169, 0.18);
      box-shadow: none;
    }

    .big-swatch {
      height: 160px;
    }

    .detail-overlay {
      background: rgba(26, 21, 18, 0.18);
      backdrop-filter: none;
    }

    .detail-drawer {
      top: 16px;
      right: 16px;
      bottom: 16px;
      width: min(430px, calc(100% - 24px));
      padding: 20px;
      border-radius: 16px;
      background: #FFFFFF;
      border: 1px solid var(--line);
      box-shadow: 0 18px 48px rgba(33, 29, 27, 0.08);
    }

    .drawer-content {
      gap: 20px;
    }

    .detail-grid {
      gap: 12px;
    }

    .detail-item {
      padding: 14px;
      background: rgba(245, 233, 226, 0.24);
    }

    .detail-item span {
      color: var(--ink);
    }

    .candidate-list {
      gap: 12px;
    }

    .candidate-row {
      padding: 12px;
      background: #FFFFFF;
    }

    .candidate-row .rank {
      color: var(--accent-strong);
    }

    .toggle-action-row .mini-btn.is-active {
      background: rgba(232, 156, 169, 0.16);
      border-color: rgba(232, 156, 169, 0.26);
      color: var(--accent-strong);
    }

    .toast {
      border-radius: 16px;
      background: #2B2522;
      box-shadow: 0 14px 30px rgba(43, 37, 34, 0.16);
    }

    @media (max-width: 1120px) {
      .page-shell {
        width: min(var(--page-width), calc(100% - 24px));
      }

      .tab-bar {
        width: 100%;
      }

      .palette-simulator-layout {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 760px) {
      .page-shell {
        width: min(100% - 16px, var(--page-width));
        padding: 16px 0 28px;
      }

      .hero,
      .panel,
      .detail-drawer {
        border-radius: 16px;
      }

      .hero,
      .panel {
        padding: 20px;
      }

      .tab-bar {
        width: 100%;
      }

      .tab-btn {
        flex: 1 1 0;
        justify-content: center;
      }

      .result-list {
        grid-template-columns: 1fr;
      }

      .palette-browser-grid {
        grid-template-columns: repeat(auto-fill, minmax(112px, 1fr));
      }

      .palette-simulator-meta {
        padding: 14px;
      }

      .detail-drawer {
        left: 8px;
        right: 8px;
        bottom: 8px;
        width: auto;
      }
    }

    @media (max-width: 900px) {
      .panel-title-row,
      .results-header,
      .drawer-header,
      .preview-toolbar {
        flex-direction: column;
        align-items: stretch;
      }

      .panel-title-row .pill,
      .results-toolbar,
      .button-row,
      .toggle-action-row {
        width: 100%;
      }

      .button-row,
      .results-toolbar {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .button-row > *,
      .results-toolbar > * {
        width: 100%;
      }

      .zoom-wrap {
        width: 100%;
        min-width: 0;
      }

      .result-card-top,
      .result-card-main {
        flex-direction: column;
        align-items: stretch;
      }

      .result-card-main .swatch {
        width: 72px;
        height: 72px;
      }

      .result-actions {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .result-actions > * {
        width: 100%;
      }

      .top10-strip,
      .recent-strip {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .recognition-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .color-chip {
        width: 100%;
      }

      .canvas-label {
        align-items: flex-start;
      }

      .canvas-label .tiny {
        display: block;
      }

      .detail-drawer {
        padding: 18px;
      }
    }

    @media (max-width: 640px) {
      .page-shell {
        width: min(100% - 12px, var(--page-width));
        padding: 12px 0 22px;
      }

      .hero,
      .panel {
        padding: 16px;
        border-radius: 16px;
      }

      .hero-copy {
        gap: 16px;
      }

      .hero h1 {
        font-size: clamp(1.8rem, 9vw, 2.35rem);
      }

      .hero p {
        font-size: 0.95rem;
        max-width: none;
      }

      .hero-note,
      .eyebrow {
        width: 100%;
        justify-content: center;
      }

      .tab-bar {
        padding: 4px;
        gap: 8px;
      }

      .tab-btn {
        flex: 1 1 100%;
        justify-content: flex-start;
        min-height: 56px;
        padding: 12px 14px;
      }

      .tab-btn .swatch.small {
        width: 28px;
        height: 28px;
      }

      .panel-title-row {
        margin-bottom: 16px;
      }

      .upload-area,
      .tomodachi-canvas-wrap,
      .detail-simulator,
      .palette-simulator-meta,
      .guide-box {
        padding: 14px;
      }

      .button-row,
      .results-toolbar,
      .result-actions,
      .top10-strip,
      .recent-strip {
        grid-template-columns: 1fr;
      }

      .recognition-grid {
        grid-template-columns: 1fr;
      }

      .button-row,
      .results-toolbar,
      .result-actions {
        display: grid;
      }

      .preview-shell {
        padding: 8px;
        max-height: 58svh;
      }

      .preview-stage {
        min-height: 180px;
      }

      .empty-preview {
        padding: 18px;
        font-size: 0.92rem;
      }

      .canvas-label {
        flex-direction: column;
        gap: 4px;
      }

      .simulator-legend {
        grid-template-columns: 1fr;
      }

      .result-card,
      .palette-card,
      .color-chip {
        padding: 14px;
      }

      .result-card-title {
        gap: 6px 8px;
      }

      .result-card-title strong,
      .palette-card strong {
        font-size: 0.98rem;
      }

      .result-card-main .swatch {
        width: 60px;
        height: 60px;
      }

      .result-meta-grid,
      .detail-grid {
        grid-template-columns: 1fr;
      }

      .palette-browser-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .detail-drawer {
        left: 6px;
        right: 6px;
        bottom: 6px;
        top: auto;
        width: auto;
        max-height: min(88svh, 860px);
        padding: 16px;
        border-radius: 18px 18px 14px 14px;
      }

      .drawer-content {
        padding-right: 0;
      }

      .big-swatch {
        height: 132px;
      }
    }
  
  .overview-grid {
    grid-template-columns: minmax(280px, 360px) minmax(0, 1fr);
    align-items: start;
  }

  .overview-grid > .panel {
    grid-column: span 1;
  }

  .preview-panel-main {
    min-height: 100%;
  }

  .preview-panel-main .preview-shell {
    min-height: 520px;
  }

  .preview-panel-main .preview-stage {
    min-height: 460px;
  }

  .preview-panel-main .preview-shell {
    scroll-behavior: smooth;
  }

  .advanced-body .inset-panel {
    margin: 0;
    background: rgba(255, 255, 255, 0.38);
    box-shadow: none;
  }

  .preview-control-row {
    align-items: center;
    flex-wrap: nowrap;
  }

  .preview-control-row input[type="range"] {
    flex: 1;
    min-width: 0;
  }

  .compact-helper {
    padding: 12px 14px;
    font-size: 0.92rem;
  }

  .workspace-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .detail-overlay {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(28, 18, 18, 0.34);
    backdrop-filter: blur(6px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.22s ease;
    z-index: 74;
  }

  .detail-overlay.is-open {
    opacity: 1;
    pointer-events: auto;
  }

  .workspace-grid .detail-rail {
    position: fixed;
    top: 18px;
    right: 18px;
    bottom: 18px;
    left: auto;
    width: min(420px, calc(100vw - 36px));
    max-width: min(420px, calc(100vw - 36px));
    min-height: auto;
    max-height: calc(100vh - 36px);
    transform: translateX(calc(100% + 26px));
    transition: transform 0.28s ease;
    z-index: 75;
    overflow: hidden;
  }

  .workspace-grid .detail-rail.is-open {
    transform: translateX(0);
  }

  .workspace-grid .detail-rail:not(.is-open) {
    transform: translateX(calc(100% + 26px));
  }

  .workspace-grid .detail-rail .drawer-content {
    padding-right: 6px;
  }

  .icon-close-btn {
    width: 44px;
    min-width: 44px;
    height: 44px;
    padding: 0;
    border-radius: 14px;
    display: grid;
    place-items: center;
    font-size: 1.1rem;
    line-height: 1;
  }

  @media (max-width: 1180px) {
    .overview-grid {
      grid-template-columns: 1fr;
    }

    .workspace-grid .detail-rail {
      left: 12px;
      right: 12px;
      bottom: 12px;
      top: auto;
      width: auto;
      max-width: none;
      max-height: min(84vh, 860px);
      transform: translateY(calc(100% + 18px));
    }

    .workspace-grid .detail-rail.is-open {
      transform: translateY(0);
    }

    .workspace-grid .detail-rail:not(.is-open) {
      transform: translateY(calc(100% + 18px));
    }
  }

  @media (max-width: 640px) {
    .preview-panel-main .preview-shell {
      min-height: 320px;
    }

    .preview-panel-main .preview-stage {
      min-height: 260px;
    }

    .overview-preview-toolbar {
      align-items: stretch;
    }

    .overview-zoom-wrap {
      width: 100%;
    }

    .overview-preview-toolbar .overview-zoom-reset {
      width: 100%;
    }
  }

  .palette-filter-panel .filter-row {
    align-items: center;
  }

  .palette-filter-panel #paletteSearchInput {
    flex: 2 1 320px;
  }

  .palette-filter-panel .checkbox-inline {
    flex: 0 0 auto;
  }

  .palette-grid > .palette-workspace-panel {
    grid-column: span 12;
    padding: 18px;
  }

  .palette-workspace {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
    align-items: start;
  }

  .palette-browser-stage {
    min-width: 0;
    display: grid;
    gap: 18px;
  }

  .palette-stage-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    padding: 2px 4px 0;
  }

  .palette-browser-sections {
    display: grid;
    gap: 22px;
  }

  .palette-group-section {
    display: grid;
    gap: 14px;
  }

  .palette-group-header {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
  }

  .palette-group-pill {
    display: inline-flex;
    align-items: center;
    min-height: 32px;
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(242, 137, 131, 0.16);
    color: var(--app-accent-strong);
    font-size: 0.86rem;
    font-weight: 700;
  }

  .palette-group-count {
    color: var(--app-text-soft);
    font-size: 0.9rem;
    font-weight: 600;
  }

  .palette-group-grid {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  }

  .palette-browser-sections .empty-state {
    min-height: 180px;
    display: grid;
    place-items: center;
  }

  .palette-card {
    padding: 0;
    gap: 0;
    overflow: hidden;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.78);
    border: 1px solid var(--line);
    box-shadow: none;
  }

  .palette-card .swatch {
    width: 100%;
    height: 112px;
    aspect-ratio: auto;
    border-radius: 0;
    border: 0;
    border-bottom: 1px solid rgba(232, 156, 169, 0.18);
  }

  .palette-card-body {
    display: grid;
    gap: 4px;
    padding: 14px 14px 16px;
    min-width: 0;
  }

  .palette-card-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
  }

  .palette-card-title strong {
    font-size: 1.04rem;
    line-height: 1.1;
  }

  .palette-card .mono,
  .palette-card .tiny {
    display: block;
    min-width: 0;
    word-break: break-word;
  }

  .palette-card .palette-fav-btn {
    top: 10px;
    right: 10px;
    width: 32px;
    height: 32px;
    background: rgba(255, 255, 255, 0.92);
    box-shadow: 0 10px 24px rgba(44, 24, 20, 0.08);
  }

  .palette-inspector-panel {
    position: sticky;
    top: 24px;
    align-self: start;
    min-height: 0;
  }

  .palette-inspector {
    display: grid;
    gap: 18px;
    padding: 18px;
    border-radius: 24px;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.82);
    max-height: calc(100vh - 48px);
    overflow-y: auto;
    overflow-x: hidden;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
    scrollbar-gutter: stable;
  }

  .palette-inspector-empty {
    min-height: 240px;
    display: grid;
    place-items: center;
  }

  .palette-inspector-swatch-shell {
    display: grid;
  }

  .palette-inspector-swatch {
    position: relative;
    min-height: 132px;
    border-radius: 22px;
    border: 1px solid rgba(232, 156, 169, 0.2);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.34);
    padding: 16px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
  }

  .palette-inspector-badge {
    display: inline-flex;
    align-items: center;
    min-height: 36px;
    padding: 6px 12px;
    border-radius: 12px;
    background: rgba(255, 248, 241, 0.82);
    color: var(--app-text);
    font-family: var(--app-display);
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: -0.03em;
  }

  .palette-inspector-icon {
    width: 36px;
    height: 36px;
    border-radius: 999px;
    border: 1px solid rgba(232, 156, 169, 0.26);
    background: rgba(255, 255, 255, 0.92);
    color: var(--app-text-soft);
    display: grid;
    place-items: center;
    font-size: 1rem;
  }

  .palette-inspector-icon.is-active {
    color: var(--app-accent-strong);
    border-color: rgba(242, 137, 131, 0.38);
    background: rgba(255, 240, 237, 0.94);
  }

  .palette-inspector-heading {
    display: grid;
    gap: 4px;
  }

  .palette-inspector-heading h3 {
    margin: 0;
    font-family: var(--app-display);
    font-size: clamp(2rem, 3vw, 2.4rem);
    line-height: 1;
    letter-spacing: -0.05em;
  }

  .palette-inspector-heading p {
    margin: 0;
    color: var(--app-text-soft);
    font-size: 1rem;
    font-weight: 600;
  }

  .palette-inspector-meta {
    display: grid;
    gap: 12px;
    padding: 4px 0 2px;
    border-top: 1px solid rgba(232, 156, 169, 0.16);
    border-bottom: 1px solid rgba(232, 156, 169, 0.16);
  }

  .palette-inspector-row {
    display: grid;
    grid-template-columns: 84px minmax(0, 1fr);
    gap: 12px;
    align-items: baseline;
  }

  .palette-inspector-row span {
    color: var(--app-text-soft);
    font-size: 0.94rem;
  }

  .palette-inspector-row strong {
    color: var(--app-text);
    word-break: break-word;
  }

  .palette-inspector-block {
    display: grid;
    gap: 14px;
  }

  .palette-inspector-block > strong {
    font-size: 1rem;
  }

  .palette-inspector-canvas-wrap {
    display: grid;
    gap: 10px;
  }

  .palette-inspector-canvas-wrap #paletteTomodachiPaletteCanvas {
    width: 100%;
    border-radius: 16px;
    border: 1px solid rgba(232, 156, 169, 0.18);
    background: #fff;
  }

  .palette-inspector-canvas-wrap #paletteTomodachiHueCanvas {
    width: 100%;
    border-radius: 999px;
    border: 1px solid rgba(232, 156, 169, 0.18);
    background: #fff;
  }

  .palette-inspector-coordinates {
    display: grid;
    gap: 10px;
  }

  .palette-inspector-coordinates div {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    color: var(--app-text-soft);
    font-size: 0.94rem;
  }

  .palette-inspector-coordinates strong {
    color: var(--app-text);
  }

  .palette-inspector-actions {
    display: grid;
    gap: 10px;
  }

  @media (max-width: 1180px) {
    .palette-workspace {
      grid-template-columns: 1fr;
    }

    .palette-inspector-panel {
      position: static;
    }

    .palette-inspector {
      max-height: none;
      overflow: visible;
      scrollbar-gutter: auto;
    }
  }

  @media (max-width: 760px) {
    .palette-group-grid {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .palette-card .swatch {
      height: 96px;
    }

    .palette-inspector {
      padding: 16px;
    }
  }

  @media (max-width: 520px) {
    .palette-group-grid {
      grid-template-columns: 1fr;
    }

    .palette-inspector-row {
      grid-template-columns: 1fr;
      gap: 6px;
    }
  }

  .analysis-grid {
    align-items: start;
  }

  .analysis-grid > .panel,
  .analysis-grid > .advanced-panel {
    min-width: 0;
  }

  .analysis-grid > .metrics-panel,
  .analysis-grid > .results-panel,
  .analysis-grid > .advanced-panel {
    grid-column: 1 / -1;
  }

  .analysis-grid > .chart-panel {
    grid-column: span 5;
    order: 2;
  }

  .analysis-grid > .ranking-panel {
    grid-column: span 3;
    order: 3;
  }

  .analysis-grid > .heatmap-panel {
    grid-column: span 4;
    order: 4;
  }

  .analysis-grid > .metrics-panel {
    order: 1;
  }

  .analysis-grid > .results-panel {
    order: 5;
    overflow: visible;
  }

  .analysis-grid > .advanced-panel {
    order: 6;
  }

  .metrics-grid {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  }

  .metric-card {
    min-height: 132px;
    align-content: start;
  }

  .analysis-chart-layout {
    grid-template-columns: minmax(220px, 0.92fr) minmax(0, 1.08fr);
    align-items: start;
    gap: 22px;
  }

  .analysis-donut {
    width: min(250px, 100%);
  }

  .analysis-donut .donut-hole {
    width: 62%;
    padding: 16px;
  }

  .analysis-donut .donut-hole span {
    color: var(--app-text-soft);
    font-size: 0.92rem;
    line-height: 1.4;
  }

  .analysis-donut .donut-hole strong {
    font-size: 1.8rem;
    line-height: 1;
  }

  .analysis-legend,
  .analysis-ranking,
  .heatmap-legend {
    align-content: start;
  }

  .legend-row,
  .ranking-row {
    width: 100%;
    text-align: left;
    font: inherit;
    color: inherit;
    appearance: none;
    border-radius: 18px;
    padding: 14px 16px;
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid var(--app-line);
    box-shadow: none;
  }

  .legend-row.is-clickable,
  .ranking-row {
    cursor: pointer;
  }

  .legend-row {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 12px;
  }

  .legend-body,
  .ranking-body {
    display: grid;
    gap: 4px;
    min-width: 0;
  }

  .legend-body strong,
  .ranking-body strong {
    font-size: 1rem;
    line-height: 1.1;
  }

  .legend-note,
  .ranking-body .tiny,
  .legend-metric .tiny {
    color: var(--app-text-soft);
    line-height: 1.35;
  }

  .legend-metric {
    display: grid;
    gap: 4px;
    justify-items: end;
    text-align: right;
    white-space: nowrap;
  }

  .legend-metric strong {
    color: var(--app-text);
    font-size: 1rem;
    line-height: 1;
  }

  .heatmap-row {
    grid-template-columns: auto minmax(0, 1fr) auto;
  }

  .ranking-row {
    display: grid;
    grid-template-columns: auto auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 12px;
  }

  .ranking-metric {
    display: grid;
    gap: 4px;
    justify-items: end;
    text-align: right;
    white-space: nowrap;
  }

  .ranking-metric strong {
    font-size: 1rem;
    line-height: 1;
  }

  .analysis-heatmap-wrap {
    min-height: 420px;
  }

  #analysisHeatmapCanvas {
    min-height: 420px;
  }

  .results-header {
    align-items: flex-start;
    gap: 18px;
  }

  .results-header > div:first-child {
    min-width: 0;
  }

  .results-toolbar {
    justify-content: flex-end;
  }

  .analysis-table {
    display: grid;
    gap: 10px;
  }

  .analysis-table-header,
  .analysis-table-row {
    display: grid;
    grid-template-columns: minmax(150px, 1.35fr) 78px minmax(190px, 1.4fr) 110px 100px minmax(170px, 1.2fr) minmax(180px, 1.3fr);
    gap: 14px;
    align-items: center;
  }

  .analysis-table-header {
    padding: 0 10px 6px;
    color: var(--app-text-soft);
    font-size: 0.86rem;
    font-weight: 700;
  }

  .analysis-table-row {
    padding: 14px 16px;
    border-radius: 18px;
    border: 1px solid var(--app-line);
    background: rgba(255, 255, 255, 0.72);
    transition: border-color 0.18s ease, background-color 0.18s ease;
  }

  .analysis-table-row.is-active {
    border-color: rgba(232, 156, 169, 0.4);
    background: rgba(245, 233, 226, 0.26);
  }

  .analysis-table-cell {
    min-width: 0;
    display: grid;
    gap: 6px;
    color: var(--app-text-soft);
    font-size: 0.92rem;
  }

  .analysis-table-cell strong {
    color: var(--app-text);
  }

  .analysis-color-cell {
    align-content: start;
  }

  .analysis-color-cell strong {
    font-size: 1.02rem;
    line-height: 1.1;
  }

  .analysis-swatch-cell {
    justify-items: start;
  }

  .analysis-swatch-cell .swatch {
    width: 56px;
    height: 56px;
    border-radius: 16px;
  }

  .analysis-code-cell .mono {
    font-size: 0.96rem;
  }

  .analysis-position-cell span {
    line-height: 1.4;
  }

  .analysis-action-cell {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: flex-start;
  }

  .advanced-panel:not([open]) .advanced-body {
    display: none;
  }

  @media (max-width: 1280px) {
    .analysis-grid > .chart-panel,
    .analysis-grid > .ranking-panel {
      grid-column: span 6;
    }

    .analysis-grid > .heatmap-panel {
      grid-column: 1 / -1;
    }

    .analysis-table-header,
    .analysis-table-row {
      grid-template-columns: minmax(150px, 1.2fr) 72px minmax(170px, 1.2fr) 96px 96px minmax(160px, 1.15fr) minmax(170px, 1.15fr);
    }
  }

  @media (max-width: 980px) {
    .analysis-grid > .chart-panel,
    .analysis-grid > .ranking-panel,
    .analysis-grid > .heatmap-panel {
      grid-column: 1 / -1;
    }

    .analysis-table-header {
      display: none;
    }

    .analysis-table-row {
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 12px;
    }

    .analysis-swatch-cell {
      grid-row: span 2;
      align-content: start;
    }

    .analysis-action-cell {
      grid-column: 1 / -1;
    }
  }

  @media (max-width: 640px) {
    .legend-row,
    .heatmap-row,
    .ranking-row,
    .analysis-table-row {
      grid-template-columns: 1fr;
    }

    .legend-row,
    .heatmap-row {
      gap: 8px;
    }

    .legend-metric {
      justify-items: start;
      text-align: left;
      white-space: normal;
    }

    .ranking-row {
      gap: 10px;
    }

    .ranking-metric {
      justify-items: start;
      text-align: left;
    }

    .analysis-swatch-cell {
      grid-row: auto;
    }

    .results-toolbar {
      width: 100%;
      display: grid;
      grid-template-columns: 1fr;
    }

    .results-toolbar > * {
      width: 100%;
    }
  }

  @media (max-width: 900px) {
    .topbar-actions {
      width: 100%;
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 10px;
    }

    .topbar-btn {
      width: 100%;
      justify-content: center;
    }

    .view-header-meta,
    .view-header-actions {
      width: 100%;
      justify-content: flex-start;
    }
  }

  @media (max-width: 720px) {
    .workspace-topbar {
      gap: 14px;
    }

    .topbar-leading {
      width: 100%;
    }

    .topbar-actions {
      grid-template-columns: 1fr;
    }

    .metrics-grid {
      grid-template-columns: 1fr;
    }

    .palette-inspector-actions,
    .analysis-action-cell {
      grid-template-columns: 1fr;
    }

    .analysis-action-cell {
      display: grid;
    }
  }

  @media (max-width: 520px) {
    .workspace-topbar,
    .view-panel,
    .detail-rail,
    .info-modal,
    .palette-inspector {
      padding: 14px;
      border-radius: 18px;
    }

    .workspace-topbar h1 {
      font-size: 1.4rem;
    }

    .view-header h2 {
      font-size: 1.45rem;
    }

    .preview-shell {
      max-height: 52svh;
    }

    .analysis-heatmap-wrap,
    #analysisHeatmapCanvas {
      min-height: 280px;
    }

    .analysis-table-row {
      padding: 12px;
    }

    .palette-card .swatch {
      height: 84px;
    }
  }

  @media (max-width: 900px) {
    .panel-title-row,
    .results-header,
    .palette-stage-header {
      flex-direction: column;
      align-items: stretch;
    }

    .panel-title-row .pill,
    .results-toolbar,
    .button-row {
      width: 100%;
    }

    .palette-filter-panel .filter-row {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 12px;
    }

    .palette-filter-panel #paletteSearchInput,
    .palette-filter-panel .checkbox-inline {
      grid-column: 1 / -1;
    }

    .palette-filter-panel .checkbox-inline {
      min-height: 48px;
      justify-content: flex-start;
      padding: 0 14px;
    }

    .palette-grid > .palette-workspace-panel {
      padding: 16px;
    }

    .palette-workspace {
      gap: 18px;
    }
  }

  @media (max-width: 720px) {
    .button-row,
    .results-toolbar,
    .palette-inspector-actions {
      display: grid;
      grid-template-columns: 1fr;
    }

    .button-row > *,
    .results-toolbar > *,
    .palette-inspector-actions > * {
      width: 100%;
    }

    .filter-row {
      display: grid;
      grid-template-columns: 1fr;
    }

    .palette-filter-panel .filter-row {
      grid-template-columns: 1fr;
    }

    .palette-grid > .palette-workspace-panel {
      padding: 14px;
    }

    .palette-stage-header,
    .view-header {
      gap: 12px;
    }

    .analysis-chart-layout {
      gap: 16px;
    }

    .analysis-donut {
      margin-inline: auto;
    }

    .preview-panel-main .preview-shell {
      min-height: 300px;
    }

    .preview-panel-main .preview-stage {
      min-height: 240px;
    }
  }

  @media (max-width: 480px) {
    .app-shell {
      padding: 8px;
      gap: 8px;
    }

    .app-sidebar {
      inset: 8px auto 8px 8px;
      width: min(320px, calc(100vw - 16px));
      max-height: calc(100vh - 16px);
    }

    .workspace-topbar,
    .view-panel,
    .detail-rail,
    .info-modal,
    .palette-inspector {
      padding: 12px;
      border-radius: 16px;
    }

    .palette-inspector-swatch {
      min-height: 108px;
      padding: 14px;
    }

    .palette-inspector-badge {
      font-size: 1.08rem;
      min-height: 32px;
    }

    .analysis-donut {
      width: min(220px, 100%);
    }

    .analysis-heatmap-wrap,
    #analysisHeatmapCanvas {
      min-height: 240px;
    }
  }

  @media (max-width: 980px) {
    .analysis-grid {
      grid-template-columns: minmax(0, 1fr) !important;
    }

    .analysis-grid > .panel,
    .analysis-grid > .metrics-panel,
    .analysis-grid > .chart-panel,
    .analysis-grid > .ranking-panel,
    .analysis-grid > .heatmap-panel,
    .analysis-grid > .results-panel,
    .analysis-grid > .advanced-panel {
      grid-column: 1 / -1 !important;
      width: 100%;
      min-width: 0;
    }

    .analysis-chart-layout {
      grid-template-columns: 1fr !important;
      gap: 16px;
    }

    .analysis-donut-wrap,
    .analysis-legend,
    .analysis-ranking,
    .analysis-heatmap-wrap,
    .heatmap-legend {
      min-width: 0;
    }

    .analysis-donut {
      width: min(240px, 100%);
      margin-inline: auto;
    }

    .analysis-grid .panel-title-row h2,
    .analysis-grid .panel-title-row h3,
    .analysis-grid .panel-subtitle {
      overflow-wrap: anywhere;
    }
  }

  @media (max-width: 900px) {
    .preview-panel-main {
      display: grid;
      gap: 12px;
    }

    .preview-panel-main .overview-preview-toolbar {
      order: 1;
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      align-items: center;
      gap: 12px;
    }

    .preview-panel-main .preview-shell {
      order: 2;
    }

    .preview-panel-main .overview-zoom-wrap {
      display: grid;
      grid-template-columns: 44px minmax(0, 1fr) auto 44px;
      align-items: center;
      gap: 10px;
      width: 100%;
      min-width: 0;
    }

    .preview-panel-main .overview-zoom-wrap input[type="range"] {
      width: 100%;
      min-width: 0;
    }

    .preview-panel-main .overview-preview-toolbar .mono {
      min-width: 52px;
      text-align: right;
      white-space: nowrap;
    }

    .preview-panel-main .overview-preview-toolbar .mini-btn {
      min-height: 44px;
      padding-inline: 14px;
    }

    .preview-panel-main .overview-preview-toolbar .overview-zoom-reset {
      width: auto;
      justify-self: end;
      white-space: nowrap;
    }
  }

  @media (max-width: 640px) {
    .preview-panel-main .overview-preview-toolbar {
      grid-template-columns: 1fr;
      align-items: stretch;
    }

    .preview-panel-main .overview-zoom-wrap {
      grid-template-columns: 40px minmax(0, 1fr) auto 40px;
    }

    .preview-panel-main .overview-preview-toolbar .overview-zoom-reset {
      width: auto;
      justify-self: start;
    }
  }