:root {
        color-scheme: light;
        --bg-1: #f5efe6;
        --bg-2: #e7ddcf;
        --panel: rgba(255, 255, 255, 0.72);
        --text: #1f1a17;
        --muted: #6f6257;
        --accent: #915f3a;
        --shadow: 0 24px 60px rgba(44, 28, 17, 0.18);
      }

      * {
        box-sizing: border-box;
      }

      html,
      body {
        margin: 0;
        width: 100%;
        min-height: 100%;
      }

      body {
        font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
        -webkit-font-smoothing: antialiased;
        color: var(--text);
        background:
          radial-gradient(circle at top, rgba(255, 255, 255, 0.9), transparent 40%),
          linear-gradient(160deg, var(--bg-1), var(--bg-2));
        overscroll-behavior: none;
      }

      .page {
        min-height: 100dvh;
        display: grid;
        grid-template-rows: auto 1fr auto;
        gap: 1rem;
        padding:
          max(1rem, env(safe-area-inset-top))
          max(1rem, env(safe-area-inset-right))
          max(1rem, env(safe-area-inset-bottom))
          max(1rem, env(safe-area-inset-left));
        padding: max(1rem, env(safe-area-inset-top)) max(1rem, env(safe-area-inset-right)) max(1rem, env(safe-area-inset-bottom)) max(1rem, env(safe-area-inset-left));
      }

      .hero,
      .footer {
        display: flex;
        justify-content: space-between;
        gap: 1rem;
        align-items: end;
        flex-wrap: wrap;
      }

      .eyebrow {
        margin: 0 0 0.35rem;
        text-transform: uppercase;
        letter-spacing: 0.16em;
        font-size: 0.78rem;
        color: var(--accent);
      }

      h1 {
        margin: 0;
        font-size: clamp(2rem, 5vw, 4.25rem);
        line-height: 0.95;
        letter-spacing: -0.04em;
      }

      .copy {
        max-width: 34rem;
        margin: 0;
        color: var(--muted);
        font-size: 1rem;
        line-height: 1.5;
      }

      .viewer-shell {
        position: relative;
        min-height: 62dvh;
        border-radius: 28px;
        overflow: hidden;
        background: linear-gradient(180deg, rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0.2));
        box-shadow: var(--shadow);
        border: 1px solid rgba(255, 255, 255, 0.5);
      }

      .ar-launch {
        position: absolute;
        top: 1rem;
        right: 1rem;
        z-index: 2;
        border: 0;
        border-radius: 999px;
        padding: 0.85rem 1.05rem;
        background: var(--accent);
        color: #fff;
        font: inherit;
        font-weight: 700;
        box-shadow: 0 14px 30px rgba(145, 95, 58, 0.28);
        cursor: pointer;
        touch-action: manipulation;
      }

      .ar-launch[hidden] {
        display: none;
      }

      .ar-launch:active {
        transform: translateY(1px);
      }

      .ar-launch:focus-visible {
        outline: 3px solid rgba(145, 95, 58, 0.35);
        outline-offset: 2px;
      }

      model-viewer {
        width: 100%;
        height: 100%;
        min-height: 62dvh;
        background: transparent;
        touch-action: pan-y pinch-zoom;
        --poster-color: transparent;
      }

      .hint {
        position: absolute;
        left: 1rem;
        bottom: 1rem;
        display: inline-flex;
        gap: 0.5rem;
        align-items: center;
        padding: 0.8rem 1rem;
        border-radius: 999px;
        background: var(--panel);
        backdrop-filter: blur(14px);
        box-shadow: 0 10px 28px rgba(54, 34, 20, 0.12);
        color: var(--text);
        font-size: 0.92rem;
        pointer-events: none;
      }

      .hint strong {
        color: var(--accent);
      }

      .badge {
        display: inline-flex;
        align-items: center;
        padding: 0.55rem 0.9rem;
        border-radius: 999px;
        background: rgba(145, 95, 58, 0.12);
        color: var(--accent);
        font-weight: 600;
      }

      .footer {
        color: var(--muted);
        font-size: 0.95rem;
      }

      @media (max-width: 720px) {
        .page {
          gap: 0.85rem;
          padding: max(0.85rem, env(safe-area-inset-top)) max(0.85rem, env(safe-area-inset-right)) max(0.85rem, env(safe-area-inset-bottom)) max(0.85rem, env(safe-area-inset-left));
        }

        .viewer-shell,
        model-viewer {
          min-height: 72dvh;
        }

        .hint {
          left: 0.75rem;
          right: 0.75rem;
          bottom: 0.75rem;
          transform: none;
          width: auto;
          justify-content: center;
          text-align: center;
          padding: 0.85rem 1rem;
        }

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

        .ar-launch {
          top: 0.75rem;
          right: 0.75rem;
          padding: 0.8rem 0.95rem;
        }
      }