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

    :root {
      --bg: #0a0e17;
      --bg-card: rgba(22, 27, 34, 0.7);
      --bg-elevated: #1c2129;
      --border: rgba(48, 54, 61, 0.6);
      --text: #c9d1d9;
      --text-muted: #8b949e;
      --text-bright: #f0f6fc;
      --accent: #3d7ea6;
      --accent-light: #58a6d4;
      --accent-glow: rgba(61, 126, 166, 0.12);
      --gradient-1: #3d7ea6;
      --gradient-2: #6c5ce7;
      --gradient-3: #00cec9;
      --danger: #d4313b;
      --radius: 16px;
      --radius-sm: 10px;
    }

    body {
      font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      background: var(--bg);
      color: var(--text);
      line-height: 1.6;
      overflow-x: hidden;
    }

    a { color: var(--accent-light); text-decoration: none; transition: color 0.2s; }
    a:hover { color: #7bc4f0; }

    .nav {
      position: fixed; top: 0; left: 0; right: 0; z-index: 100;
      padding: 16px 32px; display: flex; align-items: center; justify-content: space-between;
      background: rgba(10, 14, 23, 0.85); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
      border-bottom: 1px solid var(--border);
    }
    .nav-brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.1rem; color: var(--text-bright); text-decoration: none; }
    .nav-brand:hover { color: var(--text-bright); text-decoration: none; }
    .nav-links { display: flex; gap: 28px; align-items: center; }
    .nav-links a { font-size: 0.9rem; font-weight: 500; color: var(--text-muted); transition: color 0.2s; }
    .nav-links a:hover, .nav-links a.active { color: var(--text-bright); text-decoration: none; }
    .nav-cta { padding: 8px 20px; background: var(--danger); color: #fff !important; border-radius: 8px; font-weight: 600; font-size: 0.85rem; transition: background 0.2s, transform 0.1s; }
    .nav-cta:hover { background: #e04450; transform: translateY(-1px); text-decoration: none; }
    .nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
    .nav-toggle svg { stroke: var(--text-muted); }

    .page-header {
      padding: 140px 24px 60px;
      text-align: center;
      position: relative;
      overflow: hidden;
    }
    .page-header::before {
      content: '';
      position: absolute;
      inset: 0;
      background: radial-gradient(ellipse 80% 50% at 50% 0%, rgba(108,92,231,0.12) 0%, transparent 60%);
      pointer-events: none;
    }
    .page-header h1 {
      font-size: clamp(2rem, 5vw, 3.2rem);
      font-weight: 900;
      color: var(--text-bright);
      letter-spacing: -0.03em;
      margin-bottom: 12px;
    }
    .page-header p {
      font-size: 1.1rem;
      color: var(--text-muted);
      max-width: 560px;
      margin: 0 auto;
    }

    .section { max-width: 900px; margin: 0 auto; padding: 60px 24px 80px; }

    /* ── Story ── */
    .story {
      font-size: 1.08rem;
      color: var(--text);
      line-height: 1.85;
      margin-bottom: 60px;
    }

    .story p { margin-bottom: 20px; }

    .story .highlight {
      color: var(--text-bright);
      font-weight: 600;
    }

    /* ── Timeline ── */
    .timeline { position: relative; padding-left: 36px; margin-bottom: 60px; }

    .timeline::before {
      content: '';
      position: absolute;
      left: 12px;
      top: 8px;
      bottom: 8px;
      width: 2px;
      background: linear-gradient(to bottom, var(--accent), var(--gradient-2), var(--gradient-3));
      border-radius: 2px;
    }

    .timeline-item {
      position: relative;
      padding-bottom: 32px;
    }

    .timeline-item::before {
      content: '';
      position: absolute;
      left: -30px;
      top: 6px;
      width: 12px;
      height: 12px;
      background: var(--accent);
      border-radius: 50%;
      border: 3px solid var(--bg);
      box-shadow: 0 0 0 2px var(--accent);
    }

    .timeline-item h3 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-bright);
      margin-bottom: 4px;
    }

    .timeline-item .date {
      font-size: 0.8rem;
      color: var(--accent-light);
      font-weight: 600;
      margin-bottom: 6px;
    }

    .timeline-item p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* ── Principles ── */
    .principles-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 16px;
      margin-bottom: 60px;
    }

    .principle {
      padding: 28px 24px;
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      backdrop-filter: blur(10px);
      transition: border-color 0.3s, transform 0.3s;
    }

    .principle:hover { border-color: var(--accent); transform: translateY(-2px); }

    .principle .num {
      font-size: 2rem;
      font-weight: 900;
      background: linear-gradient(135deg, var(--gradient-1), var(--gradient-2));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      margin-bottom: 12px;
      display: block;
    }

    .principle h3 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-bright);
      margin-bottom: 8px;
    }

    .principle p {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* ── Tech Stack ── */
    .tech-section h2 {
      font-size: 1.4rem;
      font-weight: 800;
      color: var(--text-bright);
      margin-bottom: 20px;
      text-align: center;
    }

    .tech-grid {
      display: flex;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 60px;
    }

    .tech-pill {
      padding: 10px 22px;
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: 100px;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-muted);
      backdrop-filter: blur(10px);
      transition: border-color 0.2s, color 0.2s;
    }

    .tech-pill:hover { border-color: var(--accent); color: var(--text-bright); }

    /* ── CTA ── */
    .about-cta {
      text-align: center;
      padding: 48px 28px;
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      backdrop-filter: blur(10px);
    }

    .about-cta h2 {
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--text-bright);
      margin-bottom: 12px;
    }

    .about-cta p {
      color: var(--text-muted);
      font-size: 0.95rem;
      margin-bottom: 24px;
    }

    .about-cta-buttons { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

    .btn {
      display: inline-flex; align-items: center; gap: 8px;
      padding: 12px 24px; font-size: 14px; font-weight: 600;
      font-family: inherit; border: none; border-radius: var(--radius-sm);
      cursor: pointer; transition: all 0.25s ease; text-decoration: none;
    }
    .btn:hover { text-decoration: none; transform: translateY(-2px); }
    .btn-primary { background: var(--accent); color: #fff; box-shadow: 0 4px 20px rgba(61,126,166,0.3); }
    .btn-primary:hover { box-shadow: 0 8px 32px rgba(61,126,166,0.4); color: #fff; }
    .btn-outline { background: transparent; color: var(--text-bright); border: 1px solid var(--border); }
    .btn-outline:hover { border-color: var(--accent); background: var(--accent-glow); color: var(--text-bright); }
    .btn-donate { background: var(--danger); color: #fff; }
    .btn-donate:hover { background: #e04450; color: #fff; }

    .site-footer {
      text-align: center; padding: 40px 24px; border-top: 1px solid var(--border);
      color: var(--text-muted); font-size: 0.85rem;
    }
    .site-footer .links { display: flex; justify-content: center; gap: 24px; margin-bottom: 16px; flex-wrap: wrap; }
    .site-footer .links a { color: var(--text-muted); }
    .site-footer .links a:hover { color: var(--text-bright); }

    .reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.7s ease, transform 0.7s ease; }
    .reveal.visible { opacity: 1; transform: translateY(0); }

    @media (max-width: 640px) {
      .nav-links { display: none; }
      .nav-toggle { display: block; }
      .page-header { padding: 120px 16px 40px; }
      .section { padding: 40px 16px 60px; }
      .principles-grid { grid-template-columns: 1fr; }
    }