:root {
  color-scheme: dark;
  --bg: #0b0f15;
  --panel: #171d25;
  --line: #303946;
  --text: #f5f7fa;
  --muted: #aeb7c3;
  --accent: #ffad24;
  --blue: #3b82f6;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.7;
}

.shell {
  width: min(760px, calc(100% - 40px));
  margin: 0 auto;
  padding: 72px 0;
}

.hero {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 24px;
  align-items: center;
  margin-bottom: 44px;
}

.mark {
  display: grid;
  place-items: center;
  width: 88px;
  height: 88px;
  border: 1px solid #5c451d;
  border-radius: 18px;
  background: #202630;
  color: var(--accent);
  font-size: 38px;
  font-weight: 800;
}

h1 { margin: 0; font-size: clamp(36px, 7vw, 58px); line-height: 1.15; }
h2 { margin: 0 0 8px; font-size: 21px; }
p { margin: 0; color: var(--muted); }
a { color: #7fb2ff; }

.eyebrow {
  margin-bottom: 6px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
}

.lead { margin-top: 12px; font-size: 18px; }

.links { display: grid; gap: 14px; }
.links a, section {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}
.links a {
  display: grid;
  gap: 4px;
  padding: 22px 24px;
  color: var(--text);
  text-decoration: none;
}
.links a:hover { border-color: #566273; }
.links span { color: var(--muted); }

.article { padding-top: 48px; }
.article .back { display: inline-block; margin-bottom: 38px; text-decoration: none; }
.meta { margin: 12px 0 34px; }
section { margin-top: 14px; padding: 22px 24px; }
section p + p { margin-top: 10px; }

.button {
  display: inline-block;
  margin-top: 18px;
  padding: 11px 16px;
  border-radius: 7px;
  background: var(--blue);
  color: white;
  font-weight: 700;
  text-decoration: none;
}

@media (max-width: 520px) {
  .shell { width: min(100% - 28px, 760px); padding: 36px 0; }
  .hero { grid-template-columns: 64px 1fr; gap: 16px; }
  .mark { width: 64px; height: 64px; border-radius: 12px; font-size: 28px; }
  .lead { font-size: 16px; }
}