:root {
  color-scheme: dark;
  --background: #0f172a;
  --surface: #1e293b;
  --surface-2: #263449;
  --accent: #22c55e;
  --muted: #94a3b8;
  --text: #f8fafc;
  --line: rgba(148, 163, 184, 0.22);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at 20% 0%, rgba(34, 197, 94, 0.18), transparent 35%), var(--background);
  color: var(--text);
  font-family: ui-rounded, "SF Pro Rounded", Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a {
  color: inherit;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px clamp(20px, 5vw, 72px);
  border-bottom: 1px solid var(--line);
}

.brand {
  color: var(--text);
  font-size: 24px;
  font-weight: 900;
  text-decoration: none;
}

nav {
  display: flex;
  gap: 18px;
  color: var(--muted);
  font-weight: 700;
}

nav a {
  text-decoration: none;
}

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

.hero {
  display: grid;
  align-items: center;
  min-height: 72vh;
  padding: 72px clamp(20px, 5vw, 72px);
  max-width: 1040px;
}

.eyebrow {
  color: var(--accent);
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(44px, 8vw, 86px);
  line-height: 0.95;
  letter-spacing: 0;
}

h2 {
  margin: 0 0 10px;
}

p,
li {
  color: var(--muted);
  line-height: 1.65;
}

.lede {
  max-width: 680px;
  font-size: 20px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 12px;
  font-weight: 900;
  text-decoration: none;
}

.primary {
  background: var(--accent);
  color: #020617;
}

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

.features {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  padding: 0 clamp(20px, 5vw, 72px) 72px;
}

article,
.support-card {
  background: rgba(30, 41, 59, 0.88);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px;
}

.page {
  width: min(820px, calc(100% - 40px));
  margin: 0 auto;
  padding: 56px 0 80px;
}

.page h1 {
  font-size: clamp(38px, 7vw, 64px);
}

.updated,
.note {
  font-size: 14px;
}

.note {
  padding: 14px 16px;
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.28);
  border-radius: 12px;
}

.support-card {
  margin-top: 16px;
}

footer {
  padding: 28px clamp(20px, 5vw, 72px);
  border-top: 1px solid var(--line);
}

@media (max-width: 800px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

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