:root {
  color-scheme: dark;
  --bg: #0b1220;
  --bg-soft: #111a2b;
  --surface: #141f33;
  --surface-2: #1a2740;
  --text: #e8eef7;
  --muted: #9fb0c6;
  --line: #243450;
  --accent: #2dd4a7;
  --accent-2: #38bdf8;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  line-height: 1.6;
}

code {
  font-family: "Cascadia Code", "SFMono-Regular", Consolas, monospace;
  font-size: 0.92em;
  background: rgba(45, 212, 167, 0.12);
  color: var(--accent);
  padding: 1px 6px;
  border-radius: 5px;
}

a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { width: min(1140px, calc(100% - 40px)); margin: 0 auto; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 84px 0 64px;
  background:
    radial-gradient(900px 500px at 12% -10%, rgba(45, 212, 167, 0.16), transparent 60%),
    radial-gradient(900px 520px at 100% 0%, rgba(56, 189, 248, 0.14), transparent 55%),
    var(--bg);
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  max-width: 880px;
  margin: 0;
  font-size: clamp(2.2rem, 5.4vw, 4.4rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.grad {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.intro {
  max-width: 680px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 1.12rem;
}

.cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }

.btn {
  display: inline-block;
  padding: 11px 20px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text);
  font-weight: 600;
}
.btn:hover { border-color: var(--accent); text-decoration: none; }
.btn.primary {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border: none;
  color: #06121b;
}

.badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
}
.badges li {
  font-size: 0.86rem;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 14px;
}

/* ---------- Sections ---------- */
.section { padding: 52px 0; border-top: 1px solid var(--line); }
.section:first-of-type { border-top: none; }
.section-heading { margin-bottom: 26px; }
.section h2 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

.card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: linear-gradient(180deg, var(--surface), var(--bg-soft));
  padding: 22px;
  transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}
.card:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
  box-shadow: var(--shadow);
}
.card h3 {
  margin: 0 0 10px;
  font-size: 1.12rem;
  font-family: "Cascadia Code", Consolas, monospace;
  color: var(--text);
}
.card p { margin: 0 0 18px; color: var(--muted); flex: 1; }

.links { display: flex; gap: 10px; align-items: center; }
.links a { font-weight: 600; font-size: 0.92rem; }
.links .dl {
  background: rgba(45, 212, 167, 0.14);
  color: var(--accent);
  border: 1px solid rgba(45, 212, 167, 0.35);
  border-radius: 8px;
  padding: 6px 12px;
}
.links .dl:hover { background: rgba(45, 212, 167, 0.24); text-decoration: none; }

.feat .card:hover { transform: none; border-color: var(--line); box-shadow: none; }
.feat .card h3 { font-family: inherit; }

/* ---------- Link list ---------- */
.link-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
}
.link-list a {
  display: flex;
  flex-direction: column;
  gap: 3px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  padding: 16px 18px;
  color: var(--text);
}
.link-list a:hover { border-color: var(--accent); text-decoration: none; }
.link-list strong { font-family: "Cascadia Code", Consolas, monospace; color: var(--accent); }
.link-list span { color: var(--muted); font-size: 0.9rem; }

/* ---------- Footer ---------- */
footer {
  border-top: 1px solid var(--line);
  padding: 32px 0 56px;
  color: var(--muted);
  background: var(--bg-soft);
}
footer p { margin: 4px 0; }

@media (max-width: 520px) {
  .hero { padding: 60px 0 48px; }
  .section { padding: 40px 0; }
}