:root {
  color-scheme: dark;
  --bg: #070b14;
  --surface: rgba(15, 23, 42, 0.82);
  --border: rgba(57, 197, 187, 0.28);
  --accent: #39c5bb;
  --text: #f1f5f9;
  --muted: #94a3b8;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at 80% -10%, rgba(57,197,187,.2), transparent 34%), var(--bg);
  color: var(--text);
  font: 16px/1.7 Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}
main { width: min(860px, calc(100% - 32px)); margin: 0 auto; padding: 64px 0 80px; }
.brand { color: var(--accent); font-size: .78rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
h1 { margin: 8px 0 12px; font-size: clamp(2rem, 6vw, 3.5rem); line-height: 1.1; }
h2 { margin-top: 2.2rem; font-size: 1.3rem; }
p, li { color: var(--muted); }
a { color: var(--accent); }
.card {
  display: block;
  margin-top: 24px;
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
}
.card:hover { border-color: var(--accent); }
.card strong { display: block; font-size: 1.12rem; }
.card span { display: block; margin-top: 4px; color: var(--muted); }
.meta { padding: 14px 18px; border-left: 3px solid var(--accent); background: var(--surface); }
footer { margin-top: 56px; padding-top: 20px; border-top: 1px solid var(--border); color: var(--muted); font-size: .85rem; }