:root {
    --bg: #0b0f14;
    --fg: #eef2ff;
    --muted: rgba(238, 242, 255, 0.72);
    --border: rgba(238, 242, 255, 0.12);
    --card: rgba(238, 242, 255, 0.06);
    --card2: rgba(238, 242, 255, 0.04);
    --accent: rgb(176, 252, 56);
  
    --radius: 14px;
    --shadow: 0 10px 30px rgba(0,0,0,0.35);
  
    --container: 1100px;
    --pad: 16px;
  
    --text: clamp(16px, 1.2vw + 12px, 18px);
    --h1: clamp(28px, 4vw + 12px, 48px);
    --h2: clamp(18px, 1.5vw + 14px, 22px);
  }
  
  * { box-sizing: border-box; }
  html, body { height: 100%; }
  body {
    margin: 0;
    font-size: var(--text);
    line-height: 1.5;
    color: var(--fg);
    background: radial-gradient(1200px 700px at 20% -10%, rgba(176,252,56,0.12), transparent 55%),
                radial-gradient(1000px 600px at 90% 0%, rgba(120,170,255,0.10), transparent 55%),
                var(--bg);
    font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    padding-bottom: env(safe-area-inset-bottom);
  }
  
  a { color: inherit; text-decoration: none; }
  a:focus-visible, button:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    border-radius: 10px;
  }
  
  .container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 var(--pad);
  }
  
  .site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(10px);
    background: rgba(11, 15, 20, 0.72);
    border-bottom: 1px solid var(--border);
  }
  
  .site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    min-height: 60px;
  }
  
  .brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
  }
  
  .brand-mark {
    width: 34px;
    height: 34px;
    display: grid;
    place-items: center;
    border-radius: 10px;
    background: rgba(176,252,56,0.14);
    border: 1px solid rgba(176,252,56,0.35);
    color: var(--accent);
    font-weight: 700;
  }
  
  .brand-name { font-weight: 650; letter-spacing: 0.2px; }
  
  .nav {
    display: flex;
    align-items: center;
    gap: 10px;
  }
  
  .nav-link {
    padding: 10px 12px;
    border-radius: 12px;
    border: 1px solid transparent;
    color: var(--muted);
    min-height: 44px;
    display: inline-flex;
    align-items: center;
  }
  
  .nav-link:hover {
    border-color: var(--border);
    background: rgba(238, 242, 255, 0.04);
    color: var(--fg);
  }
  
  .hero {
    padding: 34px 0 18px;
  }
  
  .hero-title {
    margin: 0 0 10px;
    font-size: var(--h1);
    line-height: 1.05;
    letter-spacing: -0.6px;
  }
  
  .hero-subtitle {
    margin: 0;
    max-width: 60ch;
    color: var(--muted);
  }
  
  .actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 18px;
  }
  
  .button {
    min-height: 44px;
    padding: 12px 16px;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: rgba(238, 242, 255, 0.05);
    color: var(--fg);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    box-shadow: 0 1px 0 rgba(255,255,255,0.05) inset;
  }
  
  .button.primary {
    border-color: rgba(176,252,56,0.4);
    background: rgba(176,252,56,0.14);
    color: var(--fg);
  }
  
  .card-grid {
    display: grid;
    gap: 14px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    padding: 18px 0 34px;
  }
  
  .card {
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: linear-gradient(180deg, var(--card), var(--card2));
    box-shadow: var(--shadow);
    padding: 16px;
    min-height: 120px;
  }
  
  .card-title {
    margin: 0 0 8px;
    font-size: var(--h2);
  }
  
  .card-text {
    margin: 0;
    color: var(--muted);
  }
  
  .site-footer {
    border-top: 1px solid var(--border);
    background: rgba(11, 15, 20, 0.6);
    padding: 18px 0;
    color: var(--muted);
  }
  
  @media (max-width: 900px) {
    .card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  }
  
  @media (max-width: 600px) {
    :root { --pad: 14px; }
    .site-header .container { min-height: 56px; }
    .nav { gap: 6px; }
    .nav-link { padding: 10px 10px; }
    .card-grid { grid-template-columns: 1fr; }
  }
  
  @media (prefers-reduced-motion: reduce) {
    * { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
  }