:root {
  --bg: #0f172a;
  --panel: #111c35;
  --text: #f8fafc;
  --muted: #cbd5e1;
  --line: rgba(255, 255, 255, 0.12);
  --accent: #8bd3ff;
  --accent-strong: #38bdf8;
  --card: rgba(255, 255, 255, 0.06);
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.25);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(56, 189, 248, 0.18), transparent 34rem),
    radial-gradient(circle at bottom right, rgba(139, 211, 255, 0.12), transparent 34rem),
    var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.site-header,
.site-footer {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 28px 0;
}

.brand {
  color: var(--text);
  text-decoration: none;
  font-weight: 800;
  letter-spacing: -0.04em;
  font-size: 1.35rem;
}

nav,
.site-footer div {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

a {
  color: var(--muted);
  text-decoration: none;
}

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

main {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  min-height: 68vh;
  display: grid;
  align-content: center;
  padding: 70px 0 90px;
}

.eyebrow {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-weight: 700;
  font-size: 0.78rem;
  margin: 0 0 14px;
}

h1, h2, h3 { line-height: 1.08; margin: 0; letter-spacing: -0.045em; }

h1 {
  max-width: 900px;
  font-size: clamp(2.7rem, 7vw, 6.2rem);
}

h2 { font-size: clamp(2rem, 4vw, 3.5rem); }

h3 { font-size: 1.45rem; margin-bottom: 14px; }

.lead {
  max-width: 720px;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  margin: 26px 0 0;
}

.actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 700;
}

.primary {
  background: var(--text);
  color: #0f172a;
}

.secondary {
  border: 1px solid var(--line);
  color: var(--text);
}

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

.section-heading { margin-bottom: 28px; }

.cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 26px;
  padding: 24px;
  box-shadow: var(--shadow);
}

.card p {
  color: var(--muted);
  margin: 0 0 22px;
}

.tag {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px 10px;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
}

.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 44px;
  align-items: start;
}

.split p:last-child {
  color: var(--muted);
  font-size: 1.15rem;
  margin: 0;
}

.page {
  max-width: 820px;
  padding: 72px 0 100px;
}

.page h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); }
.page h2 { font-size: 1.65rem; margin-top: 36px; }
.page p, .page li { color: var(--muted); }

.site-footer {
  border-top: 1px solid var(--line);
  padding: 28px 0 42px;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.site-footer p { margin: 0; }

@media (max-width: 900px) {
  .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .split { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .site-header { align-items: flex-start; gap: 18px; flex-direction: column; }
  .cards { grid-template-columns: 1fr; }
  .hero { min-height: auto; padding-top: 54px; }
}