:root {
  color-scheme: light;
  --accent: #2563eb;
  --dark: #10131a;
  --muted: #667085;
  --line: #e5e7eb;
  --bg: #f8fafc;
}

* { box-sizing: border-box; }
body { margin: 0; font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; background: var(--bg); color: var(--dark); }
a { color: inherit; }
.site-header { min-height: 68px; display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 0 6vw; background: rgba(255,255,255,0.82); border-bottom: 1px solid var(--line); backdrop-filter: blur(14px); position: sticky; top: 0; }
.brand { font-weight: 800; text-decoration: none; }
nav { display: flex; gap: 18px; color: var(--muted); font-size: 14px; }
nav a { text-decoration: none; }
.hero { min-height: 68vh; display: grid; place-items: center; padding: 72px 6vw; background: radial-gradient(circle at 20% 0%, rgba(37,99,235,0.16), transparent 36%), #fff; }
.hero > div { width: min(960px, 100%); }
.eyebrow { margin: 0 0 14px; color: var(--accent); font-weight: 800; text-transform: uppercase; letter-spacing: .08em; font-size: 12px; }
h1 { margin: 0; font-size: clamp(44px, 8vw, 92px); line-height: .96; letter-spacing: 0; max-width: 900px; }
h2 { font-size: 28px; margin: 0 0 24px; }
.lead { color: var(--muted); font-size: 20px; line-height: 1.55; max-width: 720px; margin: 24px 0 0; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 18px; border: 1px solid var(--line); border-radius: 8px; background: #fff; text-decoration: none; font-weight: 700; }
.button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.section { padding: 72px 6vw; max-width: 1180px; margin: 0 auto; }
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
article, .support-box { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 18px; }
article strong, .support-box strong { display: block; margin-bottom: 8px; }
article span, .page p { color: var(--muted); line-height: 1.65; }
.page { max-width: 760px; padding: 72px 6vw; margin: 0 auto; }
.page h1 { font-size: 44px; }
.updated { font-size: 13px; }
footer { display: flex; flex-wrap: wrap; gap: 16px; padding: 28px 6vw; border-top: 1px solid var(--line); color: var(--muted); }
footer a { text-decoration: none; }