:root {
  --bg: #0a0c10;
  --surface: #0f1218;
  --glass: rgba(255,255,255,0.06);
  --stroke: rgba(255,255,255,0.10);
  --text: #e8eefb;
  --muted: #a8b3cf;
  --primary: #83b8ff;
  --accent: #9b8cff;
  --success: #39d98a;
  --warning: #ffd166;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0; font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text); background: var(--bg);
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Background layers */
.bg-gradient {
  position: fixed; inset: -20vmax; z-index: -2; filter: blur(60px); opacity: 0.5;
  background:
    radial-gradient(45vmax 45vmax at 20% 10%, #1a2040 0%, transparent 60%),
    radial-gradient(35vmax 35vmax at 80% 20%, #0e3a66 0%, transparent 60%),
    radial-gradient(55vmax 55vmax at 50% 80%, #0c2740 0%, transparent 60%);
}
.bg-grid {
  position: fixed; inset: 0; z-index: -1;
  background-image: linear-gradient(to right, rgba(255,255,255,0.04) 1px, transparent 1px),
                    linear-gradient(to bottom, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 36px 36px; mask-image: radial-gradient(80% 60% at 50% 40%, #000 60%, transparent 100%);
}

/* Layout */
.container { width: min(1200px, 100% - 48px); margin-inline: auto; }
.nav {
  position: sticky; top: 16px; margin: 16px auto; width: min(1200px, 100% - 48px);
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px; border-radius: 14px; backdrop-filter: blur(10px);
  background: var(--glass); border: 1px solid var(--stroke);
}
.nav .brand { display: flex; gap: 10px; align-items: center; font-weight: 700; letter-spacing: .4px; }
.nav .brand-dot { width: 10px; height: 10px; border-radius: 999px; background: linear-gradient(135deg, var(--primary), var(--accent)); box-shadow: 0 0 16px var(--primary); }
.nav .links { display: flex; gap: 18px; align-items: center; }
.nav a { color: var(--muted); text-decoration: none; font-size: 14px; padding: 8px 10px; border-radius: 10px; }
.nav a:hover { color: var(--text); background: rgba(255,255,255,0.05); }
.nav .cta { background: linear-gradient(135deg, var(--primary), var(--accent)); color: #0a0c10 !important; font-weight: 700; box-shadow: 0 10px 30px rgba(131,184,255,0.25); }

/* Hero */
.hero { padding: clamp(64px, 10vh, 120px) 0 48px; text-align: center; position: relative; }
.badge { display: inline-flex; gap: 8px; align-items: center; padding: 8px 12px; border-radius: 999px; border: 1px solid var(--stroke); background: var(--glass); color: var(--muted); font-size: 12px; }
.hero h1 { font-size: clamp(36px, 7.2vw, 76px); line-height: 1.05; letter-spacing: -0.5px; margin: 16px 0; }
.hero h1 .gradient { background: linear-gradient(135deg, var(--primary), var(--accent)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p { color: var(--muted); font-size: clamp(16px, 2.2vw, 20px); max-width: 820px; margin: 0 auto; }
.hero-actions { display: flex; gap: 12px; justify-content: center; margin-top: 24px; flex-wrap: wrap; }
.btn { padding: 14px 18px; border-radius: 12px; border: 1px solid var(--stroke); background: var(--glass); color: var(--text); text-decoration: none; font-weight: 600; }
.btn.primary { background: linear-gradient(135deg, var(--primary), var(--accent)); color: #0a0c10; border: none; }
.btn:hover { transform: translateY(-1px); }

/* Section */
.section { padding: 72px 0; }
.section-header { display: flex; align-items: end; justify-content: space-between; gap: 16px; margin-bottom: 28px; }
.section h2 { font-size: clamp(22px, 3.4vw, 36px); margin: 0; }
.sub { color: var(--muted); font-size: 14px; }

/* Cards */
.grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 16px; }
.card { grid-column: span 12; background: var(--glass); border: 1px solid var(--stroke); border-radius: 16px; padding: 18px; backdrop-filter: blur(8px); position: relative; overflow: hidden; }
@media (min-width: 720px) {
  .col-4 { grid-column: span 4; }
  .col-6 { grid-column: span 6; }
}
.card h3 { margin: 4px 0 6px; font-size: 18px; }
.muted { color: var(--muted); font-size: 14px; }
.pill { display: inline-flex; align-items: center; gap: 8px; padding: 6px 10px; font-size: 12px; border: 1px solid var(--stroke); border-radius: 999px; background: rgba(255,255,255,0.04); }
.tag { font-size: 11px; color: var(--muted); border: 1px solid var(--stroke); padding: 4px 8px; border-radius: 999px; }
.stack { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 10px; }

/* Showcase tiles */
.tile { aspect-ratio: 16/10; border-radius: 12px; background: linear-gradient(135deg, rgba(131,184,255,0.12), rgba(155,140,255,0.12)); border: 1px dashed rgba(255,255,255,0.12); display: grid; place-items: center; color: var(--muted); font-size: 14px; }
.tile::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: radial-gradient(300px 140px at 80% 0%, rgba(255,255,255,0.08), transparent 60%); }
.card:hover { transform: translateY(-2px); transition: transform .2s ease; }

/* Footer */
footer { padding: 40px 0 60px; color: var(--muted); text-align: center; }
.sep { height: 1px; background: var(--stroke); margin: 24px 0; opacity: .6; }

/* Reveal */
.reveal { opacity: 0; transform: translateY(12px); transition: .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* Mini helpers */
.row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.nowrap { white-space: nowrap; }