:root {
  --bg: #0b0f17;
  --card: #121a2a;
  --text: #e8eefc;
  --muted: #b8c3dd;
  --link: #8ab4ff;
  --border: rgba(232, 238, 252, 0.12);
  --shadow: 0 10px 30px rgba(0,0,0,0.35);
  --radius: 16px;
  --max: 980px;
  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  background: radial-gradient(1200px 600px at 20% 0%, #182341 0%, var(--bg) 45%) fixed;
  color: var(--text);
  line-height: 1.6;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  padding: 28px 0 12px;
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.2px;
  color: var(--text);
}

.nav {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav a {
  padding: 8px 10px;
  border-radius: 10px;
  color: var(--muted);
}
.nav a[aria-current="page"] {
  color: var(--text);
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
}

.hero {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 22px;
  align-items: center;
  padding: 22px 0;
}

h1 {
  margin: 0 0 6px;
  font-size: 34px;
  line-height: 1.15;
}
.subtitle { margin: 0 0 10px; color: var(--muted); }
.meta { margin: 0; color: var(--muted); }

.avatar {
  width: 108px;
  height: 108px;
  border-radius: 999px;
  object-fit: cover;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  background: rgba(255,255,255,0.04);
}

main { padding: 22px 0 40px; }

.card {
  background: rgba(18,26,42,0.85);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px 18px;
}

.card h2 { margin: 0 0 10px; font-size: 18px; }
.list { margin: 0; padding-left: 18px; }
.list li { margin: 8px 0; color: var(--muted); }
.list strong { color: var(--text); }

.grid {
  margin-top: 16px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.footer {
  border-top: 1px solid var(--border);
  padding: 18px 0;
  color: var(--muted);
}

/* Mobile */
@media (max-width: 720px) {
  .hero { grid-template-columns: 1fr; }
  .grid { grid-template-columns: 1fr; }
  .topbar { align-items: flex-start; flex-direction: column; }
  .nav { justify-content: flex-start; }
}