*, *::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; }

    /* ── Navigation ── */
    .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-brand svg { flex-shrink: 0; }

    .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; }

    /* ── Hero ── */
    .hero {
      position: relative;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      text-align: center;
      padding: 120px 24px 80px;
      overflow: hidden;
    }

    .hero-bg {
      position: absolute;
      inset: 0;
      background:
        radial-gradient(ellipse 80% 50% at 50% -10%, rgba(61,126,166,0.2) 0%, transparent 60%),
        radial-gradient(ellipse 60% 40% at 80% 50%, rgba(108,92,231,0.08) 0%, transparent 50%),
        radial-gradient(ellipse 60% 40% at 20% 60%, rgba(0,206,201,0.06) 0%, transparent 50%);
      pointer-events: none;
    }

    .hero-grid {
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(rgba(61,126,166,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(61,126,166,0.03) 1px, transparent 1px);
      background-size: 60px 60px;
      mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
      -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
      pointer-events: none;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: 100px;
      font-size: 0.82rem;
      color: var(--text-muted);
      margin-bottom: 32px;
      backdrop-filter: blur(10px);
      animation: fadeInUp 0.6s ease-out;
    }

    .hero-badge .dot {
      width: 6px;
      height: 6px;
      background: #2ecc71;
      border-radius: 50%;
      animation: pulse 2s infinite;
    }

    @keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

    .hero h1 {
      font-size: clamp(2.8rem, 6vw, 5rem);
      font-weight: 900;
      color: var(--text-bright);
      line-height: 1.1;
      letter-spacing: -0.03em;
      margin-bottom: 24px;
      animation: fadeInUp 0.6s ease-out 0.1s both;
    }

    .hero h1 .gradient-text {
      background: linear-gradient(135deg, var(--gradient-1), var(--gradient-2), var(--gradient-3));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .hero .subtitle {
      font-size: clamp(1.05rem, 2vw, 1.3rem);
      color: var(--text-muted);
      max-width: 600px;
      margin: 0 auto 40px;
      line-height: 1.7;
      animation: fadeInUp 0.6s ease-out 0.2s both;
    }

    .hero-buttons {
      display: flex;
      gap: 14px;
      justify-content: center;
      flex-wrap: wrap;
      animation: fadeInUp 0.6s ease-out 0.3s both;
    }

    @keyframes fadeInUp {
      from { opacity: 0; transform: translateY(20px); }
      to { opacity: 1; transform: translateY(0); }
    }

    .btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 14px 28px;
      font-size: 15px;
      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;
      box-shadow: 0 4px 20px rgba(212,49,59,0.2);
    }
    .btn-donate:hover { background: #e04450; box-shadow: 0 8px 32px rgba(212,49,59,0.3); color: #fff; }

    /* ── Section ── */
    .section {
      max-width: 1200px;
      margin: 0 auto;
      padding: 100px 24px;
    }

    .section-header {
      text-align: center;
      margin-bottom: 56px;
    }

    .section-label {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.12em;
      color: var(--accent-light);
      margin-bottom: 12px;
    }

    .section-header h2 {
      font-size: clamp(1.8rem, 3.5vw, 2.6rem);
      font-weight: 800;
      color: var(--text-bright);
      letter-spacing: -0.02em;
      margin-bottom: 12px;
    }

    .section-header p {
      color: var(--text-muted);
      font-size: 1.1rem;
      max-width: 560px;
      margin: 0 auto;
    }

    /* ── Extension Cards ── */
    .ext-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(480px, 1fr));
      gap: 24px;
    }

    .ext-card {
      position: relative;
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      overflow: hidden;
      backdrop-filter: blur(10px);
      transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
      cursor: pointer;
    }

    .ext-card-link {
      position: absolute;
      inset: 0;
      z-index: 1;
    }

    .ext-card-actions { position: relative; z-index: 2; }
    .ext-card-actions .btn { position: relative; z-index: 2; }

    .coming-soon-badge {
      display: inline-block;
      font-size: 0.68rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      padding: 3px 10px;
      border-radius: 100px;
      background: rgba(212,49,59,0.15);
      color: #e04450;
      border: 1px solid rgba(212,49,59,0.25);
      margin-left: 8px;
    }

    .ext-card:hover {
      transform: translateY(-6px);
      box-shadow: 0 20px 60px rgba(0,0,0,0.4);
      border-color: var(--accent);
    }

    .ext-card-image {
      position: relative;
      overflow: hidden;
      aspect-ratio: 1400 / 560;
    }

    .ext-card-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

    .ext-card:hover .ext-card-image img { transform: scale(1.03); }

    .ext-card-image::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      height: 60%;
      background: linear-gradient(to top, rgba(10,14,23,0.95), transparent);
      pointer-events: none;
    }

    .ext-card-body {
      padding: 28px 28px 24px;
    }

    .ext-card-top {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 14px;
    }

    .ext-card-logo {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    }

    .ext-card-top h3 {
      font-size: 1.3rem;
      font-weight: 700;
      color: var(--text-bright);
    }

    .ext-card-top .ext-tag {
      font-size: 0.7rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      padding: 3px 10px;
      border-radius: 100px;
      background: var(--accent-glow);
      color: var(--accent-light);
      border: 1px solid rgba(61,126,166,0.2);
    }

    .ext-card-body p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 20px;
    }

    .ext-card-features {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 20px;
    }

    .ext-card-features span {
      padding: 4px 12px;
      font-size: 0.78rem;
      font-weight: 500;
      color: var(--text-muted);
      background: var(--bg-elevated);
      border-radius: 6px;
      border: 1px solid var(--border);
    }

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

    .ext-card-actions .btn { padding: 10px 20px; font-size: 0.85rem; }

    /* ── Values Grid ── */
    .values-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 20px;
    }

    .value-card {
      position: relative;
      padding: 36px 28px;
      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;
      overflow: hidden;
    }

    .value-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: linear-gradient(90deg, var(--gradient-1), var(--gradient-2), var(--gradient-3));
      opacity: 0;
      transition: opacity 0.3s;
    }

    .value-card:hover { border-color: var(--accent); transform: translateY(-3px); }
    .value-card:hover::before { opacity: 1; }

    .value-card .icon {
      width: 48px;
      height: 48px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: var(--accent-glow);
      border: 1px solid rgba(61,126,166,0.15);
      border-radius: 12px;
      font-size: 22px;
      margin-bottom: 18px;
    }

    .value-card h3 {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-bright);
      margin-bottom: 8px;
    }

    .value-card p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* ── Stats Bar ── */
    .stats {
      display: flex;
      justify-content: center;
      gap: 60px;
      flex-wrap: wrap;
      padding: 60px 24px;
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }

    .stat { text-align: center; }

    .stat .number {
      font-size: clamp(2rem, 4vw, 3rem);
      font-weight: 900;
      background: linear-gradient(135deg, var(--accent-light), var(--gradient-3));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .stat .label {
      font-size: 0.85rem;
      color: var(--text-muted);
      font-weight: 500;
      margin-top: 4px;
    }

    /* ── CTA Section ── */
    .cta-section {
      position: relative;
      padding: 100px 24px;
      text-align: center;
      overflow: hidden;
    }

    .cta-section::before {
      content: '';
      position: absolute;
      inset: 0;
      background: radial-gradient(ellipse at center, rgba(61,126,166,0.1) 0%, transparent 60%);
      pointer-events: none;
    }

    .cta-section h2 {
      font-size: clamp(1.8rem, 3.5vw, 2.5rem);
      font-weight: 800;
      color: var(--text-bright);
      margin-bottom: 16px;
    }

    .cta-section p {
      font-size: 1.1rem;
      color: var(--text-muted);
      max-width: 500px;
      margin: 0 auto 32px;
    }

    .cta-buttons { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

    /* ── Footer ── */
    .site-footer {
      padding: 60px 24px 40px;
      border-top: 1px solid var(--border);
    }

    .footer-inner {
      max-width: 1200px;
      margin: 0 auto;
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
    }

    .footer-brand p {
      font-size: 0.85rem;
      color: var(--text-muted);
      margin-top: 12px;
      line-height: 1.6;
      max-width: 280px;
    }

    .footer-col h4 {
      font-size: 0.8rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.1em;
      color: var(--text-bright);
      margin-bottom: 16px;
    }

    .footer-col a {
      display: block;
      font-size: 0.88rem;
      color: var(--text-muted);
      padding: 4px 0;
      transition: color 0.2s;
    }

    .footer-col a:hover { color: var(--text-bright); text-decoration: none; }

    .footer-bottom {
      max-width: 1200px;
      margin: 40px auto 0;
      padding-top: 24px;
      border-top: 1px solid var(--border);
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }

    .footer-bottom p {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    .footer-socials {
      display: flex;
      gap: 16px;
    }

    .footer-socials a {
      color: var(--text-muted);
      transition: color 0.2s;
    }

    .footer-socials a:hover { color: var(--text-bright); }

    /* ── Scroll animations ── */
    .reveal {
      opacity: 0;
      transform: translateY(30px);
      transition: opacity 0.7s ease, transform 0.7s ease;
    }

    .reveal.visible {
      opacity: 1;
      transform: translateY(0);
    }

    /* ── Mobile Nav ── */
    .nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
    .nav-toggle svg { stroke: var(--text-muted); }

    /* ── Responsive ── */
    @media (max-width: 900px) {
      .ext-grid { grid-template-columns: 1fr; }
      .footer-inner { grid-template-columns: 1fr 1fr; }
    }

    @media (max-width: 640px) {
      .nav-links { display: none; }
      .nav-toggle { display: block; }
      .hero { padding: 100px 16px 60px; }
      .hero h1 { font-size: 2.2rem; }
      .section { padding: 60px 16px; }
      .stats { gap: 32px; }
      .footer-inner { grid-template-columns: 1fr; }
      .values-grid { grid-template-columns: 1fr; }
    }