:root {
  --bg: #f3f7fd;
  --paper: #ffffff;
  --ink: #1d2433;
  --muted: #5b6578;
  --accent: #2563eb;
  --accent-soft: #dbe7fd;
  --line: #dde5f0;
  --max: 980px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #11151d;
    --paper: #1a202b;
    --ink: #e8edf5;
    --muted: #9aa5b8;
    --accent: #6c9cff;
    --accent-soft: #233353;
    --line: #2b3444;
  }
}
* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at 15% 0%, var(--accent-soft) 0, transparent 40%), var(--bg);
  line-height: 1.6;
}
a { color: var(--accent); text-underline-offset: 2px; }
.container { width: min(100% - 2rem, var(--max)); margin-inline: auto; }
header { padding: 2rem 0 1.25rem; }
.brand { display: inline-flex; align-items: center; gap: 0.6rem; font-size: 1.35rem; font-weight: 700; color: var(--ink); text-decoration: none; }
.brand img { width: 2.2rem; height: 2.2rem; }
nav { margin-top: 1rem; display: flex; flex-wrap: wrap; gap: 0.6rem; }
.nav-link { text-decoration: none; padding: 0.4rem 0.8rem; border-radius: 999px; border: 1px solid var(--line); background: var(--paper); color: var(--ink); font-weight: 600; }
.nav-link:hover, .nav-link:focus-visible, .nav-link.active { border-color: var(--accent); background: var(--accent-soft); }
.hero, .card { background: var(--paper); border: 1px solid var(--line); border-radius: 16px; padding: 1.25rem 1.4rem; box-shadow: 0 8px 24px rgba(20, 40, 80, 0.06); }
.hero { display: flex; gap: 1.5rem; align-items: center; }
.hero img { width: 128px; height: 128px; flex: none; }
.hero h1 { margin: 0 0 0.4rem; font-size: clamp(1.5rem, 3.2vw, 2.2rem); line-height: 1.2; }
.hero p { margin: 0; color: var(--muted); }
.badge { display: inline-block; margin-top: 0.8rem; padding: 0.35rem 0.8rem; border-radius: 999px; background: var(--accent-soft); color: var(--ink); font-weight: 600; font-size: 0.9rem; }
.grid { display: grid; gap: 1rem; margin-top: 1rem; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
h2 { margin: 1.8rem 0 0.6rem; font-size: 1.35rem; }
.card h2, .card h3 { margin-top: 0.2rem; }
h3 { margin: 1.3rem 0 0.45rem; font-size: 1.05rem; }
p, li { max-width: 75ch; }
.muted { color: var(--muted); }
.lang { margin-top: 2.5rem; }
footer { margin: 2.5rem auto 2rem; color: var(--muted); font-size: 0.9rem; }
@media (max-width: 760px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .hero { flex-direction: column; align-items: flex-start; }
  .hero img { width: 96px; height: 96px; }
}