:root {
  --bg: #0b0f14;
  --card: #121924;
  --text: #e8eef6;
  --muted: #a9b6c7;
  --brand: #55d6ff;
  --border: rgba(255,255,255,.08);
  --shadow: 0 10px 30px rgba(0,0,0,.35);
  --radius: 16px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(1200px 700px at 20% -10%, rgba(85,214,255,.18), transparent 50%),
              radial-gradient(900px 600px at 90% 0%, rgba(120,80,255,.14), transparent 55%),
              var(--bg);
  color: var(--text);
}

a { color: inherit; text-decoration: none; }
a:hover { opacity: .92; }

.container { width: min(1080px, calc(100% - 32px)); margin: 0 auto; }

.header {
  position: sticky; top: 0;
  backdrop-filter: blur(10px);
  background: rgba(11,15,20,.55);
  border-bottom: 1px solid var(--border);
  z-index: 10;
}

.header__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}

.brand {
  font-weight: 800;
  letter-spacing: .2px;
  color: var(--brand);
}

.nav a {
  padding: 10px 10px;
  border-radius: 10px;
  color: var(--muted);
}
.nav a:hover { background: rgba(255,255,255,.06); color: var(--text); }

.main { padding: 28px 0 44px; }

.hero {
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
  padding: 22px;
}

.grid {
  display: grid;
  gap: 16px;
}
.grid--2 { grid-template-columns: 1.2fr .8fr; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }

@media (max-width: 900px) {
  .grid--2, .grid--3 { grid-template-columns: 1fr; }
  .nav { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
}

.card {
  background: rgba(18,25,36,.9);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
}

.h1 { font-size: 30px; margin: 0 0 8px; }
.h2 { font-size: 20px; margin: 0 0 10px; }
.p { color: var(--muted); margin: 8px 0; line-height: 1.6; }

.badges { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 10px; }
.badge {
  font-size: 12px;
  color: rgba(255,255,255,.88);
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255,255,255,.04);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid rgba(85,214,255,.35);
  background: rgba(85,214,255,.14);
  color: var(--text);
  font-weight: 700;
  cursor: pointer;
}
.btn:hover { background: rgba(85,214,255,.18); }

.btn--ghost {
  border: 1px solid var(--border);
  background: rgba(255,255,255,.04);
  color: var(--muted);
}
.btn--ghost:hover { color: var(--text); }

.list { margin: 0; padding-left: 18px; color: var(--muted); line-height: 1.8; }

.hr { border: 0; border-top: 1px solid var(--border); margin: 14px 0; }

.footer {
  border-top: 1px solid var(--border);
  padding: 18px 0 30px;
  color: var(--muted);
}
.footer__row { display: grid; gap: 8px; }
.muted { color: var(--muted); }

.article h1, .article h2, .article h3 { margin: 18px 0 10px; }
.article p, .article li { color: var(--muted); line-height: 1.8; }
.article a { color: var(--brand); text-decoration: underline; }