* { box-sizing: border-box; }
    :root {
      --fg: #293845;
      --bg: #ffffff;
      --card: rgba(255,255,255,0.7);
      --line: rgba(0,0,0,0.08);
      --muted: #6b7280;
      --text: #111827;
      --radius-xl: 28px;
      --radius-lg: 20px;
      --shadow: 0 20px 60px rgba(0,0,0,0.08);
      --score: 12;
    }

    html, body {
      margin: 0;
      min-height: 100%;
      font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      background: var(--bg);
      color: var(--fg);
      transition: background-color 0.25s ease, color 0.25s ease;
    }

    body {
      padding: 28px;
    }

    .page {
      max-width: 1360px;
      margin: 0 auto;
      display: grid;
      gap: 24px;
    }

    .hero {
      min-height: 72vh;
      border: 1px solid currentColor;
      border-radius: 36px;
      padding: 28px;
      /* background: color-mix(in srgb, var(--bg) 85%, #ffffff 15%);
      box-shadow: var(--shadow); */
      display: grid;
      grid-template-columns: minmax(280px, 1.15fr) minmax(320px, 0.85fr);
      gap: 24px;
      transition: background-color 0.25s ease, border-color 0.25s ease;
    }

    .hero-left {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      gap: 24px;
    }

    .eyebrow {
      font-size: 15px;
      line-height: 1.5;
      color: color-mix(in srgb, var(--fg) 68%, transparent);
      max-width: 520px;
    }

    .score-wrap {
      display: grid;
      gap: 12px;
      align-content: start;
    }

    .score-title {
      font-size: var(--d2-fontSize);
      line-height: 0.92;
      letter-spacing: -0.06em;
      font-weight: 800;
      margin: var(--systemSpacing-0);
      max-width: 740px;
    }

    .score-grid {
      display: grid;
      grid-template-columns: 1fr auto auto auto;
      gap: 10px;
      align-items: end;
      width: fit-content;
      margin-top: 12px;
    }

    .score-box, .pill {
      border: 1px solid currentColor;
      /* background: rgba(255,255,255,0.55); */
      backdrop-filter: blur(18px);
      border-radius: 18px;
      padding: 14px 16px;
      transition: 0.25s ease;
    }

    .score-box {
      min-width: 140px;
    }

    .score-label {
      display: block;
      font-size: 12px;
      letter-spacing: 0.06em;
      text-transform: uppercase;
      color: currentColor;
      margin-bottom: 8px;
    }

    .score-value {
      font-size: clamp(32px, 6vw, 72px);
      line-height: 0.9;
      font-weight: 800;
      letter-spacing: -0.06em;
    }

    .pill {
      min-width: 90px;
      text-align: center;
    }

    .pill strong {
      display: block;
      font-size: 26px;
      line-height: 1;
      margin-bottom: 6px;
      letter-spacing: -0.05em;
    }

    .pill span {
      font-size: 12px;
      color: currentColor;
      text-transform: uppercase;
      letter-spacing: 0.06em;
    }

    .sample-card {
      padding: 22px;
      border: 1px solid currentColor;
      border-radius: 28px;
      /* background: rgba(255,255,255,0.55); */
      backdrop-filter: blur(20px);
      display: grid;
      gap: 16px;
    }

    .sample-link {
      font-size: 14px;
      color: color-mix(in srgb, var(--fg) 75%, transparent);
      word-break: break-all;
    }

    .sample-preview {
      border-radius: 24px;
      border: 1px solid currentColor;
      padding: 28px;
      min-height: 220px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      /* background: var(--bg); */
      color: currentColor;
      transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease;
    }

    .sample-preview h2 {
      margin: 0 0 10px;
      font-size: clamp(26px, 4vw, 42px);
      letter-spacing: -0.04em;
      line-height: 1;
    }

    .sample-preview p {
      margin: 0;
      font-size: 16px;
      line-height: 1.6;
      max-width: 44ch;
      color: currentColor;
    }

    .hero-right {
      display: grid;
      gap: 18px;
      align-content: start;
    }

    .panel {
      border: 1px solid currentColor;
      /* background: rgba(255,255,255,0.58); */
      backdrop-filter: blur(18px);
      border-radius: 28px;
      padding: 20px;
      display: grid;
      gap: 16px;
    }

    .tabs {
      display: inline-flex;
      gap: 8px;
      flex-wrap: wrap;
    }

    .tab {
      border: 1px solid currentColor;
      background: transparent;
      color: inherit;
      font: inherit;
      padding: 10px 14px;
      border-radius: 999px;
      cursor: pointer;
      transition: 0.2s ease;
    }

    .tab.active {
      background: var(--fg);
      color: var(--bg);
      border-color: transparent;
    }

    .color-block {
      display: grid;
      gap: 12px;
    }

    .section-head {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
    }

    .section-head h3 {
      margin: 0;
      font-size: 18px;
      letter-spacing: -0.03em;
    }

    .chip {
      font-size: 12px;
      color: currentColor;
      padding: 8px 10px;
      border-radius: 999px;
      border: 0.1px solid currentColor;
    }

    .input-grid {
      display: grid;
      grid-template-columns: 56px 1fr;
      gap: 12px;
      align-items: center;
    }

    .swatch {
      width: 56px;
      height: 56px;
      border: 1px solid currentColor;
      border-radius: 16px;
      background: var(--fg);
      overflow: hidden;
      position: relative;
    }

    .swatch input[type="color"] {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      opacity: 0;
      cursor: pointer;
    }

    .input-stack {
      display: grid;
      gap: 10px;
    }

    .row {
      display: grid;
      grid-template-columns: 86px 1fr;
      gap: 10px;
      align-items: center;
    }

    .row label {
      font-size: 13px;
      color: currentColor;
      text-transform: uppercase;
      letter-spacing: 0.06em;
    }

    .row input {
      width: 100%;
      border: 1px solid currentColor;
      background: rgba(255,255,255,0.0);
      color: inherit;
      border-radius: 14px;
      padding: 13px 14px;
      outline: none;
      font: inherit;
      transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
    }

    .row input:focus {
      border-color: color-mix(in srgb, var(--fg) 35%, transparent);
      box-shadow: 0 0 0 4px color-mix(in srgb, var(--fg) 10%, transparent);
    }

    .inline-actions {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
    }

    .btn {
      border: 1px solid currentColor;
      background: rgba(255,255,255,0.0);
      color: inherit;
      font: inherit;
      padding: 12px 16px;
      border-radius: 14px;
      cursor: pointer;
      transition: 0.2s ease;
    }

    .btn:hover {
      transform: translateY(-1px);
      /* box-shadow: 0 10px 24px rgba(0,0,0,0.08); */
    }

    .btn.primary {
      background: var(--fg);
      color: var(--bg);
      border-color: transparent;
    }

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

    .detail-card {
      border: 1px solid currentColor;
      border-radius: 18px;
      padding: 14px;
      display: grid;
      gap: 8px;
      /* background: rgba(255,255,255,0.55); */
    }

    .detail-card h4 {
      margin: 0;
      font-size: 12px;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: currentColor;
    }

    .detail-card p {
      margin: 0;
      font-size: 16px;
      line-height: 1.45;
      word-break: break-word;
    }

    .info {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 24px;
      align-items: start;
    }

    .article, .side-card {
      border: 1px solid currentColor;
      border-radius: 28px;
      padding: 26px;
      /* background: rgba(255,255,255,0.72); */
      /* box-shadow: var(--shadow); */
    }

    .article h2, .side-card h3 {
      margin: 0 0 14px;
      font-size: clamp(28px, 3vw, 40px);
      letter-spacing: -0.05em;
      line-height: 1.05;
    }

    .article p, .side-card p, .side-card li {
      line-height: 1.75;
      margin: 0 0 14px;
      font-size: 16px;
    }

    .side-card ul {
      margin: 0;
      padding-left: 18px;
    }

    .guide-line {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      padding: 12px 0;
      border-bottom: 1px solid currentColor;
      font-size: 15px;
    }

    .guide-line:last-child { border-bottom: 0; }

    .guide-line strong { font-size: 18px; }

    @media (max-width: 1080px) {
      .hero,
      .info {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 720px) {
      body { padding: 16px; }
      .hero { padding: 16px; border-radius: 24px; }
      .panel, .article, .side-card, .sample-card { padding: 16px; }
      .score-grid { grid-template-columns: 1fr 1fr; width: 100%; }
      .details { grid-template-columns: 1fr; }
      .row { grid-template-columns: 1fr; }
      .input-grid { grid-template-columns: 1fr; }
      .swatch { width: 100%; height: 54px; }
    }