:root{--bg:#ffffff;--fg:#111;--muted:#666;--card:#fff;--border:#eee;--brand:#111;--accent:#0b5cff;}
@media (prefers-color-scheme: dark){
  :root{--bg:#0c0c0f;--fg:#f2f2f2;--muted:#aaa;--card:#121216;--border:#1f1f24;--brand:#f2f2f2;--accent:#5ea0ff;}
}
*{box-sizing:border-box} html,body{margin:0;padding:0;background:var(--bg);color:var(--fg);font-family:ui-sans-serif,system-ui,Segoe UI,Roboto,Arial,sans-serif}
.container{max-width:1100px;margin:auto;padding:0 16px}
.skip-link{position:absolute;left:-999px} .skip-link:focus{left:8px;top:8px;background:#fff;padding:8px;border-radius:8px}
.site-header{border-bottom:1px solid var(--border);background:var(--card);position:sticky;top:0;z-index:10}
.header-inner{display:flex;gap:16px;align-items:center;justify-content:space-between;padding:12px 0}
.brand{display:flex;align-items:center;gap:10px;color:var(--brand);text-decoration:none;font-weight:700}
.logo-dot{width:10px;height:10px;border-radius:50%;background:var(--accent);display:inline-block}
.top-nav a{margin:0 8px;text-decoration:none;color:var(--fg)}
.search{display:flex;gap:8px} .search input{padding:8px 10px;border:1px solid var(--border);border-radius:10px;background:transparent;color:var(--fg)}
.search button{padding:8px 12px;border:1px solid var(--fg);border-radius:10px;background:transparent;color:var(--fg);cursor:pointer}
.hero{padding:24px 0}
.h1{font-size:28px;margin:8px 0 6px} .h2{font-size:22px;margin:18px 0 12px} .h3{font-size:18px;margin:12px 0}
.lead{color:var(--muted);max-width:60ch}
.categories .chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.chip{border:1px solid var(--border);padding:6px 10px;border-radius:999px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.card{background:var(--card);border:1px solid var(--border);border-radius:16px;overflow:hidden;display:flex;flex-direction:column}
.card-media img{display:block;width:100%;height:auto}
.card-body{padding:12px}
.card-title{margin:0 0 6px;font-size:18px}
.price{font-weight:700;margin-bottom:8px}
.excerpt{color:var(--muted);min-height:2.2em}
.btn{display:inline-block;margin-top:6px;padding:10px 14px;border:1px solid var(--fg);border-radius:12px;text-decoration:none;color:var(--fg)}
.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}
.product-hero{display:grid;grid-template-columns:1fr;gap:16px}
.product-media img{width:100%;border-radius:14px;border:1px solid var(--border)}
.product-info .desc{color:var(--fg)}
.tiny-note{color:var(--muted);font-size:12px;margin-top:6px}
.pros-cons{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:14px}
.breadcrumbs ol{list-style:none;display:flex;gap:8px;padding:0;margin:8px 0 14px}
.breadcrumbs a{text-decoration:none}
.faq details{border:1px solid var(--border);border-radius:10px;padding:10px;margin:8px 0;background:var(--card)}
.site-footer{margin-top:40px;border-top:1px solid var(--border);padding:20px 0;background:var(--card)}
.footer-nav a{margin:0 8px;color:var(--fg);text-decoration:none}
.disclosure{color:var(--muted)}
@media(min-width:860px){.product-hero{grid-template-columns:1.1fr 1fr}}
/* helpers for search */
.muted{color:var(--muted);margin:6px 0 12px}
mark{background:rgba(255,215,64,.35);padding:0 .15em;border-radius:.2em}

.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 16px;
  margin-top: 16px;
}

.video iframe {
  width: 100%;
  height: 315px;
  border-radius: 12px;
  border: 1px solid var(--border);
}
/* Play badge on product cards */
.card-media{position:relative}
.badge-play{
  position:absolute; right:10px; bottom:10px;
  display:inline-flex; align-items:center; justify-content:center;
  width:38px; height:38px; border-radius:999px;
  background: rgba(0,0,0,.55); color:#fff;
  border:1px solid rgba(255,255,255,.25);
  backdrop-filter: saturate(1.2) blur(2px);
  transition: transform .15s ease, background .15s ease;
}
.card:hover .badge-play{ transform: scale(1.05); background: rgba(0,0,0,.65); }