:root {
  color-scheme: light dark;
  --bg: #0f172a;
  --panel: #111827;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --accent: #38bdf8;
  --border: #334155;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #172554 0, var(--bg) 48%);
  color: var(--text);
  line-height: 1.6;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrapper { max-width: 980px; margin: 0 auto; padding: 32px 20px 64px; }
header { display: flex; justify-content: space-between; align-items: center; gap: 24px; margin-bottom: 56px; }
.logo { font-weight: 750; letter-spacing: .02em; }
.lang { display: flex; gap: 12px; font-size: 14px; }
.hero { padding: 48px 0; }
.hero h1 { font-size: clamp(38px, 7vw, 72px); line-height: 1; margin: 0 0 20px; }
.hero p { font-size: 20px; max-width: 760px; color: var(--muted); }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px; margin-top: 32px; }
.card { background: rgba(17, 24, 39, .76); border: 1px solid var(--border); border-radius: 18px; padding: 22px; backdrop-filter: blur(10px); }
.card h2 { margin: 0 0 8px; font-size: 20px; }
.card p { color: var(--muted); margin: 0; }
nav { display: flex; gap: 16px; flex-wrap: wrap; }
footer { margin-top: 64px; color: var(--muted); font-size: 14px; border-top: 1px solid var(--border); padding-top: 24px; }