:root {
      color-scheme: dark;

      --maxw: 940px;
      --bg: #0b0c10;
      --surface: #11131a;
      --surface-2: #171a23;
      --text: #f2efe9;
      --muted: #aaa39a;
      --border: rgba(242, 239, 233, 0.12);
      --accent: #c9a66b;
      --accent-soft: rgba(201, 166, 107, 0.14);
      --code-bg: #08090d;
      --shadow: 0 18px 45px rgba(0, 0, 0, 0.35);
      --radius: 18px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font: 16px/1.65 Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at top left, rgba(201, 166, 107, 0.11), transparent 34rem),
        linear-gradient(180deg, #0b0c10 0%, #090a0d 100%);
    }

    a {
      color: var(--accent);
      text-decoration-thickness: 1px;
      text-underline-offset: 3px;
    }

    a:hover {
      color: var(--text);
    }

    .topbar {
      max-width: var(--maxw);
      margin: 0 auto;
      padding: 1.25rem 1.25rem 0;
    }

    .wrap {
      max-width: var(--maxw);
      margin: 0 auto;
      padding: 2rem 1.25rem 3rem;
    }

    .back-link,
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: fit-content;
      border: 1px solid var(--border);
      border-radius: 999px;
      color: var(--text);
      background: rgba(255, 255, 255, 0.04);
      text-decoration: none;
      font-weight: 700;
      transition: transform 0.15s ease, border-color 0.15s ease, background 0.15s ease;
    }

    .back-link {
      padding: 0.5rem 0.75rem;
      color: var(--muted);
      font-size: 0.9rem;
    }

    .btn {
      padding: 0.7rem 1rem;
      background: var(--accent-soft);
      border-color: rgba(201, 166, 107, 0.38);
    }

    .back-link:hover,
    .btn:hover {
      transform: translateY(-2px);
      border-color: rgba(201, 166, 107, 0.5);
      background: rgba(201, 166, 107, 0.16);
      color: var(--text);
    }

    .project-hero {
      margin: 2rem 0 1.5rem;
      padding-bottom: 1.5rem;
      border-bottom: 1px solid var(--border);
    }

    .eyebrow {
      margin: 0 0 0.5rem;
      color: var(--accent);
      font-size: 0.78rem;
      font-weight: 800;
      letter-spacing: 0.16em;
      text-transform: uppercase;
    }

    h1 {
      margin: 0;
      font-family: Georgia, "Times New Roman", serif;
      font-size: clamp(2.15rem, 5vw, 4rem);
      line-height: 1;
      letter-spacing: -0.045em;
    }

    .summary {
      max-width: 760px;
      margin: 1rem 0 0;
      color: var(--muted);
      font-size: 1.05rem;
    }

    h2 {
      display: flex;
      align-items: center;
      gap: 1rem;
      margin: 2.25rem 0 0.9rem;
      font-family: Georgia, "Times New Roman", serif;
      font-size: clamp(1.45rem, 3vw, 2rem);
      line-height: 1.15;
      letter-spacing: -0.03em;
    }

    h2::after {
      content: "";
      height: 1px;
      flex: 1;
      background: linear-gradient(90deg, var(--border), transparent);
    }

    h3 {
      margin: 1.25rem 0 0.5rem;
      font-size: 1rem;
      color: var(--text);
    }

    p {
      margin: 0 0 1rem;
      color: var(--muted);
    }

    ul {
      margin: 0.5rem 0 1.2rem 1.25rem;
      padding: 0;
      color: var(--muted);
    }

    li {
      margin: 0.35rem 0;
    }

    code {
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
      font-size: 0.92em;
      color: #efe0bd;
    }

    p code,
    li code {
      padding: 0.1rem 0.32rem;
      border: 1px solid var(--border);
      border-radius: 7px;
      background: rgba(255, 255, 255, 0.04);
    }

    pre {
      margin: 0.9rem 0 1.25rem;
      padding: 1rem;
      overflow: auto;
      border: 1px solid var(--border);
      border-radius: 14px;
      background: var(--code-bg);
      box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
    }

    pre code {
      display: block;
      white-space: pre;
      font-size: 0.9rem;
      line-height: 1.55;
    }

    pre[class*="language-"] {
      background: var(--code-bg);
      border: 1px solid var(--border);
      border-radius: 14px;
    }

    .card {
      margin-top: 1.5rem;
      padding: 1.25rem;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.035), transparent),
        var(--surface);
      box-shadow: var(--shadow);
    }

    .link-row,
    .row {
      display: flex;
      gap: 0.75rem;
      flex-wrap: wrap;
      margin: 1rem 0 1.25rem;
    }

    .source-link {
      display: inline-flex;
      width: fit-content;
      padding: 0.45rem 0.7rem;
      border: 1px solid rgba(201, 166, 107, 0.32);
      border-radius: 999px;
      background: var(--accent-soft);
      color: var(--text);
      font-size: 0.9rem;
      font-weight: 700;
      text-decoration: none;
    }

    .source-link:hover {
      background: rgba(201, 166, 107, 0.2);
    }

    .gallery {
      display: grid;
      gap: 1rem;
      margin: 1rem 0 1.75rem;
    }

    figure {
      margin: 0;
      overflow: hidden;
      border: 1px solid var(--border);
      border-radius: 16px;
      background: rgba(255, 255, 255, 0.025);
    }

    figure img {
      display: block;
      width: 100%;
      height: auto;
    }

    .diagram-frame {
        overflow-x: auto;
        overflow-y: hidden;
        padding-bottom: 0.5rem; /* prevents cut-off */
        }

    .diagram-frame img {
        display: block;
        width: 100%;
        height: auto;
        transform: scale(1.00); /* 0.85 */
        transform-origin: top left;
        }

    @media (max-width: 700px) {
        .diagram-frame img {
            transform: scale(0.95);
        }
    }

    figcaption {
      padding: 0.75rem 0.9rem;
      color: var(--muted);
      font-size: 0.92rem;
      border-top: 1px solid var(--border);
    }

    .project-footer {
      margin-top: 1.75rem;
      padding-top: 1rem;
      border-top: 1px solid var(--border);
      color: var(--muted);
      font-size: 0.9rem;
    }

    @media (max-width: 640px) {
      .wrap {
        padding-top: 1.25rem;
      }

      .card {
        padding: 1rem;
      }

      h2 {
        align-items: flex-start;
      }

      h2::after {
        margin-top: 0.65rem;
      }
    }

    .vid {
        margin: 1rem 0 1.75rem;
        overflow: hidden;
        border: 1px solid var(--border);
        border-radius: 16px;
        background: rgba(255, 255, 255, 0.025);
        box-shadow: var(--shadow);
        }

    .yt-wrap {
        position: relative;
        width: 100%;
        padding-top: 56.25%;
        }

    .yt-wrap iframe {
        position: absolute;
        inset: 0;
        width: 100%;
        height: 100%;
        }