:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #e2e8f0;
  background: #0b1220;
}

* { box-sizing: border-box; }

body {
  min-width: 320px;
  margin: 0;
  background:
    radial-gradient(circle at 80% 0, rgba(56, 189, 248, .1), transparent 34rem),
    radial-gradient(circle at 0 0, rgba(249, 115, 22, .09), transparent 28rem),
    #0b1220;
}

.page { width: min(820px, calc(100% - 32px)); margin: 0 auto; padding: 48px 0 72px; }
.brand { display: flex; align-items: center; gap: 12px; margin-bottom: 36px; color: #f8fafc; font-size: 13px; font-weight: 800; letter-spacing: .13em; }
.brand img { width: 34px; height: 34px; }
h1 { margin: 0 0 12px; color: #f8fafc; font-size: clamp(32px, 6vw, 50px); letter-spacing: -.04em; }
h2 { margin: 28px 0 8px; color: #f8fafc; font-size: 18px; }
h2:first-child { margin-top: 0; }
p { color: #b8c5d7; font-size: 15px; line-height: 1.65; }
.lead { max-width: 680px; margin: 0 0 30px; color: #dbe7f5; font-size: 18px; }
.meta { color: #8190a5; font-size: 13px; }
.card { padding: 28px; border: 1px solid rgba(148, 163, 184, .18); border-radius: 16px; background: rgba(30, 41, 59, .56); }

@media (max-width: 520px) { .page { padding-top: 32px; } .card { padding: 20px; } }