:root {
  --bg: #18212c;
  --panel: #1f2a37;
  --text: #f2ebdd;
  --muted: #b9b2a5;
  --accent: #e5383b;
  --line: #2e3b4b;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
}
a { color: var(--text); text-decoration-color: var(--accent); text-underline-offset: 3px; }
header, main, footer { max-width: 760px; margin: 0 auto; padding: 0 20px; }
header { display: flex; align-items: center; gap: 14px; padding-top: 28px; padding-bottom: 12px; }
header img { width: 48px; height: 48px; border-radius: 50%; }
header a { text-decoration: none; font-weight: 700; font-size: 1.1rem; }
nav { margin-left: auto; display: flex; gap: 18px; font-size: 0.95rem; }
nav a { color: var(--muted); text-decoration: none; }
nav a:hover { color: var(--text); }
main { padding-top: 24px; padding-bottom: 48px; }
h1 { font-size: 2rem; line-height: 1.2; margin: 0 0 8px; }
h2 { font-size: 1.15rem; margin: 32px 0 8px; }
.updated { color: var(--muted); font-size: 0.9rem; margin-top: 0; }
.hero { text-align: center; padding: 40px 0 8px; }
.hero img { width: 140px; height: 140px; border-radius: 50%; }
.hero p { color: var(--muted); max-width: 560px; margin: 12px auto; }
.btn {
  display: inline-block; margin-top: 12px; padding: 10px 22px; border-radius: 999px;
  background: var(--accent); color: #fff; text-decoration: none; font-weight: 600;
}
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 18px 20px; margin-top: 28px; }
.card h2 { margin-top: 0; }
footer { border-top: 1px solid var(--line); padding-top: 18px; padding-bottom: 32px; color: var(--muted); font-size: 0.85rem; }
@media (max-width: 520px) {
  header { flex-wrap: wrap; }
  nav { margin-left: 0; width: 100%; }
  h1 { font-size: 1.6rem; }
}