:root {
  --bg: #0f172a;
  --panel: #111c33;
  --panel-light: #17233d;
  --text: #f8fafc;
  --muted: #a7b2c7;
  --accent: #71c3cb;
  --accent-dark: #3a8f99;
  --border: rgba(255,255,255,.09);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(113,195,203,.22), transparent 32rem),
    radial-gradient(circle at bottom right, rgba(58,143,153,.18), transparent 28rem),
    var(--bg);
}

a {
  color: inherit;
  text-decoration: none;
}

.header {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-weight: 800;
  letter-spacing: -.03em;
  font-size: 22px;
}

.nav {
  display: flex;
  gap: 22px;
  color: var(--muted);
  font-size: 14px;
}

.nav a:hover {
  color: var(--text);
}

main {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  min-height: 70vh;
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 48px;
  align-items: center;
  padding: 42px 0 70px;
}

.label {
  color: var(--accent);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: 12px;
}

h1 {
  margin: 14px 0 20px;
  max-width: 760px;
  font-size: clamp(42px, 7vw, 78px);
  line-height: .95;
  letter-spacing: -.06em;
}

.subtitle {
  max-width: 560px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.7;
}

.button {
  display: inline-flex;
  margin-top: 24px;
  padding: 14px 22px;
  border-radius: 999px;
  background: var(--accent);
  color: #071018;
  font-weight: 800;
  box-shadow: 0 20px 50px rgba(113,195,203,.22);
}

.card {
  border: 1px solid var(--border);
  border-radius: 32px;
  padding: 28px;
  background: linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.03));
  box-shadow: 0 30px 80px rgba(0,0,0,.28);
}

.wave {
  height: 180px;
  border-radius: 24px;
  background:
    linear-gradient(90deg, transparent 0 4%, rgba(113,195,203,.9) 4% 6%, transparent 6% 10%),
    linear-gradient(90deg, transparent 0 10%, rgba(113,195,203,.5) 10% 13%, transparent 13% 18%),
    linear-gradient(90deg, transparent 0 18%, rgba(255,255,255,.7) 18% 20%, transparent 20% 25%),
    linear-gradient(90deg, transparent 0 25%, rgba(113,195,203,.8) 25% 28%, transparent 28% 35%),
    linear-gradient(90deg, transparent 0 35%, rgba(255,255,255,.45) 35% 38%, transparent 38% 44%),
    linear-gradient(90deg, transparent 0 44%, rgba(113,195,203,.9) 44% 47%, transparent 47% 55%),
    linear-gradient(90deg, transparent 0 55%, rgba(255,255,255,.6) 55% 57%, transparent 57% 66%),
    linear-gradient(90deg, transparent 0 66%, rgba(113,195,203,.7) 66% 69%, transparent 69% 78%),
    linear-gradient(90deg, transparent 0 78%, rgba(255,255,255,.45) 78% 80%, transparent 80% 100%),
    var(--panel-light);
  background-size: 100% 100%;
  background-repeat: no-repeat;
}

.card h2 {
  margin: 24px 0 10px;
  font-size: 28px;
  letter-spacing: -.03em;
}

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

.tracks {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.tracks span {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--accent);
  background: rgba(113,195,203,.07);
  font-size: 13px;
}

.section {
  padding: 70px 0;
  border-top: 1px solid var(--border);
}

.section h2 {
  margin: 0 0 24px;
  font-size: 34px;
  letter-spacing: -.04em;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.grid article,
.muted {
  border: 1px solid var(--border);
  border-radius: 24px;
  background: rgba(255,255,255,.04);
  padding: 24px;
}

.grid h3 {
  margin: 0 0 10px;
}

.grid p,
.section p {
  color: var(--muted);
  line-height: 1.7;
}

.footer {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 34px 0;
  border-top: 1px solid var(--border);
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  font-size: 14px;
}

@media (max-width: 820px) {
  .header,
  .footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .grid {
    grid-template-columns: 1fr;
  }

  .nav {
    flex-wrap: wrap;
  }
}