:root{
  --bg:#0f172a;
  --panel:#0b1220;
  --text:#e2e8f0;
  --muted:#cbd5e1;
  --muted-2:#94a3b8;
  --card:#111827;
  --accent:#06b6d4;
  --accent-2:#22d3ee;
  --shadow:0 10px 30px rgba(2,6,23,.45);
  --radius:18px;
}
*{box-sizing:border-box;margin:0;padding:0}
body{
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  background: radial-gradient(1200px 800px at 10% 0%, #0c1427 0%, var(--bg) 42%, #0b1222 100%);
  color:var(--text);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--accent);text-decoration:none}
header{
  position:sticky;top:0;z-index:10;
  background:linear-gradient(180deg, rgba(2,6,23,.9), rgba(2,6,23,.6) 60%, rgba(2,6,23,0));
  border-bottom:1px solid rgba(148,163,184,.18);
  backdrop-filter:saturate(140%) blur(10px);
}
.wrap{max-width:1100px;margin:0 auto;padding:18px 20px}
.branding{display:flex;align-items:center;gap:10px}
.branding .mark{width:30px;height:30px;border-radius:10px;background:conic-gradient(from 180deg at 50% 50%, var(--accent), var(--accent-2), #7dd3fc, var(--accent));box-shadow:0 0 0 2px rgba(255,255,255,.05), 0 8px 20px rgba(34,211,238,.25)}
.branding .title{font-weight:700;letter-spacing:.2px}
nav.links{display:flex;align-items:center;gap:12px;font-size:.95rem}
nav.links a{color:var(--text);padding:8px 12px;border-radius:12px;border:1px solid transparent;transition:border-color .2s ease,color .2s ease,background .2s ease}
nav.links a:hover{border-color:rgba(148,163,184,.35);color:#e0f2fe}
nav.links .pill{background:linear-gradient(120deg, rgba(6,182,212,.22), rgba(34,211,238,.35));border-color:rgba(34,211,238,.45);box-shadow:0 10px 30px rgba(34,211,238,.18);}

main{padding:30px 20px}
.hero{background:linear-gradient(180deg, rgba(2,6,23,.55), rgba(2,6,23,.88));border:1px solid rgba(148,163,184,.15);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px 22px;margin-bottom:26px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;inset:-20px;pointer-events:none;background:radial-gradient(600px 220px at 14% 12%, rgba(34,211,238,.16), transparent 60%)}
.hero h1{font-size:1.9rem;margin-bottom:6px}
.hero p{color:var(--muted);max-width:760px}
.hero .meta{display:flex;gap:12px;margin-top:12px;flex-wrap:wrap;font-size:.95rem;color:var(--muted-2)}

.hint{color:var(--muted-2);font-size:.95rem}

.section-title{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:14px 0 8px}
.section-title h2{font-size:1.3rem}
.section-title .hint{color:var(--muted-2);font-size:.95rem}

.posts-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px;margin-top:10px}
.card{background:linear-gradient(180deg, rgba(17,24,39,.8), rgba(11,18,32,.95));border:1px solid rgba(148,163,184,.16);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column;min-height:320px;transition:transform .18s ease, border-color .2s ease, box-shadow .2s ease}
.card:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.45);box-shadow:0 12px 34px rgba(8,47,73,.5)}
.card .thumb{height:160px;background-size:cover;background-position:center;position:relative}
.card .thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg, rgba(15,23,42,.35), rgba(15,23,42,.9))}
.card .body{padding:16px 16px 18px;display:flex;flex-direction:column;gap:10px;flex:1}
.card h3{font-size:1.1rem}
.card p.summary{color:var(--muted-2);font-size:.95rem;flex:1}
.card .meta{display:flex;align-items:center;gap:10px;color:var(--muted-2);font-size:.9rem}
.tags{display:flex;flex-wrap:wrap;gap:6px}
.tag{padding:4px 8px;border-radius:10px;border:1px solid rgba(34,211,238,.35);background:rgba(6,182,212,.12);color:#e0f2fe;font-size:.75rem;letter-spacing:.2px}

.empty{border:1px dashed rgba(148,163,184,.35);border-radius:var(--radius);padding:18px;text-align:center;color:var(--muted-2)}

.article{max-width:920px;margin:0 auto;padding:26px 0}
.article header{position:relative;top:auto;background:none;border:0;padding:0}
.article h1{font-size:2rem;margin-bottom:12px}
.article .eyebrow{font-size:.9rem;letter-spacing:.24px;color:var(--muted-2);text-transform:uppercase}
.article .byline{color:var(--muted-2);margin-bottom:14px;font-size:.95rem}
.article img.hero{width:100%;border-radius:14px;border:1px solid rgba(148,163,184,.18);box-shadow:var(--shadow);margin:16px 0}
.article p{color:var(--muted);margin:12px 0}
.article h2{font-size:1.35rem;margin-top:18px}
.article pre{background:#0b1220;border:1px solid rgba(148,163,184,.25);border-radius:14px;padding:14px 16px;overflow:auto;box-shadow:inset 0 0 20px rgba(34,211,238,.05)}
.article code{font-family:"SFMono-Regular", Menlo, Consolas, monospace;color:#c7d2fe}
.callout{border-radius:14px;background:linear-gradient(120deg, rgba(6,182,212,.15), rgba(59,130,246,.18));border:1px solid rgba(59,130,246,.35);padding:14px 16px;color:#e0f2fe;margin:14px 0;box-shadow:var(--shadow)}
.resource-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;margin:10px 0}
.resource{border-radius:12px;border:1px solid rgba(148,163,184,.2);padding:12px;background:linear-gradient(180deg, rgba(17,24,39,.72), rgba(11,18,32,.92))}
.resource strong{display:block;color:#e0f2fe;margin-bottom:6px}
.video-placeholder{border-radius:14px;border:1px dashed rgba(148,163,184,.35);padding:18px;color:var(--muted-2);text-align:center;margin:14px 0;background:rgba(15,23,42,.4)}

footer{text-align:center;color:var(--muted-2);padding:20px 0;font-size:.95rem}

@media (max-width:720px){
  nav.links{gap:6px;flex-wrap:wrap}
  .hero h1{font-size:1.6rem}
  .card .thumb{height:140px}
}