:root {
  color-scheme: dark;
  --bg: #07090f;
  --text: #f5f7ff;
  --muted: #a5afc9;
  --accent: #6fd1ff;
  --accent-2: #7aa8ff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: 'Sora', system-ui, -apple-system, sans-serif;
  background: #06070c;
  color: var(--text);
}

.noise {
  position: fixed;
  inset: 0;
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="120" height="120" viewBox="0 0 120 120"><filter id="n"><feTurbulence type="fractalNoise" baseFrequency="0.8" numOctaves="3" stitchTiles="stitch"/></filter><rect width="120" height="120" filter="url(%23n)" opacity="0.08"/></svg>');
  mix-blend-mode: screen;
  pointer-events: none;
  z-index: -2;
}

.bg-aurora {
  position: fixed;
  inset: -20% 0 0 0;
  background: radial-gradient(circle at 30% 20%, rgba(111, 209, 255, 0.18), transparent 45%),
    radial-gradient(circle at 80% 10%, rgba(122, 168, 255, 0.15), transparent 40%);
  filter: blur(40px);
  z-index: -3;
}

.container {
  width: min(1080px, 92vw);
  margin: 0 auto;
}

.hero {
  min-height: 100vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 120px 0 80px;
}

.hero-inner h1 {
  font-size: clamp(52px, 12vw, 112px);
  margin: 0 0 18px;
  letter-spacing: 0.08em;
  font-weight: 700;
}

.hero-inner p {
  margin: 0 auto;
  color: var(--muted);
  font-size: clamp(18px, 2.6vw, 24px);
  max-width: 760px;
  line-height: 1.7;
}

.section {
  padding: 90px 0;
}

.section.alt {
  background: #0a2430;
}

.split {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 48px;
  align-items: center;
}

.copy h2 {
  margin-top: 0;
  font-size: clamp(28px, 4.5vw, 42px);
  font-weight: 600;
}

.copy ul {
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.9;
}

.illustration {
  display: grid;
  place-items: center;
}

.cube-grid {
  display: grid;
  grid-template-columns: repeat(2, 120px);
  gap: 24px;
}

.cube {
  width: 120px;
  height: 120px;
  border: 3px solid var(--accent-2);
  border-radius: 12px;
  position: relative;
}

.cube::after {
  content: '';
  position: absolute;
  width: 60px;
  height: 60px;
  border: 3px solid var(--accent);
  border-radius: 8px;
  top: 24px;
  left: 24px;
}

.section-title {
  text-align: center;
  font-size: clamp(28px, 4vw, 40px);
  margin-bottom: 44px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.card {
  background: #0f1624;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 24px;
}

.card h3 {
  margin-top: 0;
}

.card p {
  color: var(--muted);
  line-height: 1.6;
}

.community {
  text-align: center;
}

.community h2 {
  font-size: clamp(26px, 4vw, 38px);
}

.community-icons {
  display: flex;
  justify-content: center;
  gap: 24px;
  font-size: 48px;
  margin: 24px 0;
}

.community p {
  color: var(--muted);
  max-width: 640px;
  margin: 0 auto 24px;
  line-height: 1.7;
}

.contact {
  color: var(--accent);
  font-family: 'IBM Plex Mono', monospace;
  text-decoration: none;
  font-size: 15px;
}

.footer {
  padding: 28px 0 44px;
  text-align: center;
  color: var(--muted);
}

.footer a {
  color: var(--accent);
  text-decoration: none;
}

@media (max-width: 720px) {
  .hero {
    padding: 90px 0 60px;
  }

  .section {
    padding: 70px 0;
  }

  .cube-grid {
    grid-template-columns: repeat(2, 90px);
  }

  .cube {
    width: 90px;
    height: 90px;
  }

  .cube::after {
    width: 44px;
    height: 44px;
    top: 22px;
    left: 22px;
  }
}

@media (max-width: 520px) {
  .card {
    padding: 18px;
  }

  .cube-grid {
    grid-template-columns: repeat(2, 72px);
  }

  .cube {
    width: 72px;
    height: 72px;
  }

  .cube::after {
    width: 34px;
    height: 34px;
    top: 18px;
    left: 18px;
  }
}