:root{
  --bg:#0f172a; --fg:#e2e8f0; --card:#111827; --muted:#94a3b8;
  --brand:#06b6d4; --accent:#f59e0b; --ok:#10b981; --link:#38bdf8;
  --code-bg:#0b1220;
  --border:1px solid rgba(255,255,255,.08);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:Inter,system-ui,Segoe UI,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--fg);}
a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline}
header{background:linear-gradient(90deg,#0e7490,#0369a1);padding:28px 16px;border-bottom:var(--border);box-shadow:0 8px 40px rgba(0,0,0,.35)}
header h1{margin:0;font-size:1.9rem;font-weight:700;letter-spacing:.2px}
nav{display:flex;gap:.75rem;flex-wrap:wrap;margin-top:12px}
nav a{color:#e0f2fe;padding:.45rem .8rem;border-radius:10px;background:rgba(255,255,255,.08);backdrop-filter:blur(6px);border:var(--border);transition:all .2s ease}
nav a.active, nav a:hover{background:rgba(255,255,255,.16)}
main{max-width:1100px;margin:0 auto;padding:32px 20px}
.card{background:var(--card);border-radius:16px;border:var(--border);padding:24px;margin-bottom:28px;box-shadow:0 10px 30px rgba(0,0,0,.25)}
.card h2,.card h3{margin-top:0}
.grid{display:grid;gap:20px}
.grid.cols-2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.grid.cols-3{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.hero{display:grid;grid-template-columns:1.2fr .8fr;gap:28px;align-items:center}
.hero img{width:100%;border-radius:14px;border:var(--border);background:#0b1120}
kbd{font-family:ui-monospace,Consolas,Menlo,Monaco,monospace;background:#111827;color:#e5e7eb;border-radius:6px;padding:.15rem .45rem;border:var(--border)}
table{width:100%;border-collapse:collapse;margin:10px 0 0}
th,td{border:var(--border);padding:10px;text-align:left}
th{background:#0b1220;color:#93c5fd}
footer{padding:32px 16px;text-align:center;color:var(--muted)}
.badge{display:inline-flex;align-items:center;gap:.5rem;background:#0b1220;border:var(--border);border-radius:999px;padding:.35rem .8rem;margin:.25rem 0 .25rem .25rem;font-size:.9rem}
.badge svg{width:18px;height:18px}
.gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.gallery img{width:100%;border-radius:12px;border:var(--border)}
details{background:#0b1220;border:var(--border);border-radius:12px;margin:14px 0;overflow:hidden}
summary{cursor:pointer;padding:14px 18px;font-weight:600;list-style:none}
details[open] summary{border-bottom:var(--border);background:#0c1324}
pre{background:var(--code-bg);border-radius:0 0 12px 12px;margin:0;padding:16px;overflow:auto;border-top:var(--border)}
code{font-family:ui-monospace,Consolas,Menlo,Monaco,monospace}
.tag{display:inline-block;border:var(--border);border-radius:8px;padding:.15rem .5rem;margin:.15rem;background:#0b1220;color:#e5e7eb;font-size:.85rem}
.video-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:16px}
.embed{width:100%;aspect-ratio:16/9;border:none;border-radius:12px;border:var(--border);background:#000}
.pdf{width:100%;height:640px;border:none;border-radius:12px;border:var(--border);background:#0b1120}
.small{font-size:.9rem;color:var(--muted)}
blockquote{border-left:4px solid var(--brand);margin:0;padding:.5rem 1rem;background:#0b1220;border-radius:12px}