*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

    :root {
      --cream: #f5ede0;
      --cream-trans: #f5ede080;
      --cream-dark: #ede3d2;
      --ink: #1a1208;
      --ink-mid: #3d2e18;
      --muted: #8a7560;
      --border: #1a1208;
      --shadow: 3px 3px 0 #1a1208;
      --shadow-lg: 4px 4px 0 #1a1208;
      --yellow: #f5c842;
      --yellow-dark: #d4a820;
      --red: #e05252;
      --teal: #7dcfbf;
      --green: #b5d99c;
      --radius: 14px;
      --radius-sm: 8px;
      --font-body: 'Bitter', Georgia, serif;
      --font-display: 'Fraunces', Georgia, serif;
      --font-mono: 'DM Mono', monospace;
      --max: 1170px;
      --pad: 24px;
    }

    html { 
      scroll-behavior: smooth; 
    }

    body {
      background-color: var(--cream);
      color: var(--ink);
      font-family: var(--font-body);
      font-size: 15px;
      line-height: 1.65;
      -webkit-font-smoothing: antialiased;
      min-height: 100vh;
    }
    /* topbar css */
 .topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: linear-gradient(to top, transparent 0%, var(--cream));
  -webkit-background: linear-gradient(to top, transparent 0%, var(--cream));
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 10px var(--pad) 10px;

  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 12px;
 

}

    .topbar-nav {
      display: flex;
      gap: 6px;
      align-items: center;
    }

    .nav-pill {
      font-family: var(--font-body);
      font-size: 0.72rem;
      font-weight: 500;
      color: var(--ink);
      text-decoration: none;
      border: 2px solid var(--border);
      border-radius: 999px;
      padding: 4px 14px;
      background: transparent;
      transition: background 0.15s, box-shadow 0.15s, transform 0.1s;
      white-space: nowrap;
    }

    .nav-pill:hover {
      background: var(--yellow);
      box-shadow: var(--shadow);
      transform: translateY(-1px);
    }

    .nav-pill.active {
      background: var(--ink);
      color: var(--cream);
    }

    main { max-width: var(--max); margin: 0 auto; padding: 48px var(--pad) 80px; }

    .back-link { display: inline-flex; align-items: center; gap: 6px; font-family: var(--font-mono); font-size: 0.65rem; letter-spacing: 0.1em; color: var(--muted); text-decoration: none; border: 2px solid var(--border); border-radius: 999px; padding: 4px 14px; background: var(--cream-dark); box-shadow: var(--shadow); margin-bottom: 40px; transition: transform 0.1s, box-shadow 0.1s; }
    .back-link:hover { transform: translateY(-1px); box-shadow: 4px 4px 0 var(--border); }

    .project-meta { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 16px; }
    .meta-chip { display: inline-block; border: 2px solid var(--border); border-radius: 999px; padding: 2px 12px; font-family: var(--font-mono); font-size: 0.6rem; letter-spacing: 0.1em; color: var(--ink-mid); background: var(--cream-dark); }

    h1 { font-family: var(--font-display); font-size: clamp(1.8rem, 5vw, 2.8rem); font-weight: 900; letter-spacing: -0.02em; line-height: 1.1; margin-bottom: 32px; }

    .hero-box { width: 100%; aspect-ratio: 16/9; background: var(--cream-dark); border: 2px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-lg); margin-bottom: 36px; overflow: hidden; display: flex; align-items: center; justify-content: center; }
    .hero-box iframe { width: 100%; height: 100%; object-fit: cover; }
    .hero-placeholder { font-family: var(--font-mono); font-size: 0.6rem; color: #b0a090; letter-spacing: 0.1em; }

    .content-card { background: #fff9f0; border: 2px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-lg); padding: 28px 28px; margin-bottom: 20px; }
    .content-card h2 { font-family: var(--font-display); font-size: 1.25rem; font-weight: 700; color: var(--ink); margin-bottom: 12px; }
    .content-card p { font-size: 1rem; color: var(--ink); line-height: 1.75; margin-bottom: 14px; }
    .content-card p:last-child { margin-bottom: 0; }

    .image-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 20px; }
    .img-slot { aspect-ratio: 4/3; background: var(--cream-dark); border: 2px solid var(--border); border-radius: var(--radius-sm); box-shadow: var(--shadow); display: flex; align-items: center; justify-content: center; overflow: hidden; }
    .img-slot img { width: 100%; height: 100%; object-fit: cover; }
    .img-empty { font-family: var(--font-mono); font-size: 0.52rem; color: #b0a090; letter-spacing: 0.08em; }

    footer { border-top: 2px solid var(--border); text-align: center; padding: 32px var(--pad); font-size: 0.75rem; color: var(--muted); }
    footer a { color: var(--muted); text-decoration: underline; }

    @media (max-width: 600px) {
      .topbar-name { font-size: 0.9rem; } .nav-pill { padding: 3px 10px; font-size: 0.65rem; }
      .image-grid { grid-template-columns: 1fr; }
      .content-card { padding: 20px 18px; }
    }