:root{
  --bg:#0c0c0f;
  --panel:#111219;
  --panel-alt:#151726;
  --text:#e9e9f2;
  --muted:#b4b7c8;
  --accent:#6ee7ff;
  --accent-2:#8b5cf6;
  --card:#1a1b25;
  --border:#232438;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.6}

.wrap{max-width:1100px;margin:0 auto;padding:0 20px}

.site-header{background:linear-gradient(135deg,var(--panel),var(--panel-alt));border-bottom:1px solid var(--border)}
.brand{font-weight:800;letter-spacing:.5px;margin:0;font-size:32px}
.brand .dot{color:var(--accent)}
.tag{margin:.25rem 0 0;color:var(--muted)}

.hero{border-bottom:1px solid var(--border);background:radial-gradient(1000px 500px at 10% -10%,rgba(139,92,246,.2),transparent),radial-gradient(1000px 500px at 110% 10%,rgba(110,231,255,.2),transparent)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center;padding:40px 0}
.hero-copy h2{margin:.2rem 0 1rem;font-size:28px}
.hero-copy p{color:var(--muted);max-width:58ch}
.btn{display:inline-block;margin-top:14px;padding:12px 16px;border:1px solid var(--border);background:linear-gradient(135deg,var(--panel),#0f1018);color:var(--text);text-decoration:none;border-radius:10px}
.btn:hover{border-color:var(--accent)}

.hero-thumb{position:relative;display:block;border-radius:12px;overflow:hidden;border:1px solid var(--border);box-shadow:0 10px 30px rgba(0,0,0,.3)}
.hero-thumb img{display:block;width:100%;height:auto;filter:saturate(1.05) contrast(1.05)}
.play{position:absolute;inset:auto auto 12px 12px;background:rgba(0,0,0,.6);padding:6px 10px;border-radius:999px;border:1px solid var(--border);font-weight:700}

.section{padding:40px 0}
.section.alt{background:var(--panel);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.section h3{margin:0 0 14px}

.video-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px}
.video-card{display:block;background:var(--card);border:1px solid var(--border);border-radius:12px;overflow:hidden;text-decoration:none;color:inherit;transition:transform .12s ease, border-color .12s ease}
.video-card:hover{transform:translateY(-2px);border-color:var(--accent)}
.video-card .thumb{position:relative;aspect-ratio:16/9;background:#0b0c12}
.video-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.video-card .thumb .play{position:absolute;inset:auto auto 10px 10px;background:rgba(0,0,0,.6);padding:6px 10px;border-radius:999px;border:1px solid var(--border)}
.video-card .meta{padding:12px}
.video-card h4{margin:.2rem 0 .25rem;font-size:16px}
.video-card p{margin:0;color:var(--muted);font-size:14px}

.links{list-style:none;padding:0;margin:0;display:grid;gap:6px}
.links a{color:var(--accent)}
.links a:hover{color:#a1ecff}

.site-footer{border-top:1px solid var(--border);background:var(--panel-alt);padding:16px 0;color:var(--muted);text-align:center}

/* Responsive tweaks */
@media (max-width:860px){
  .hero-grid{grid-template-columns:1fr;gap:22px}
}