:root{
  --bg:#0f0f0f; --bg2:#181818; --card:#1a1a1a; --border:#2a2a2a;
  --text:#f2f2f2; --muted:#a8a8a8; --accent:#ffd21f; --accent-text:#111;
}
:root[data-theme="light"]{
  --bg:#ffffff; --bg2:#f5f5f5; --card:#ffffff; --border:#e0e0e0;
  --text:#111111; --muted:#555555; --accent:#ffd21f; --accent-text:#111;
}
*{box-sizing:border-box;margin:0;padding:0}
body{background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;line-height:1.6}
a{color:inherit;text-decoration:none}
.container{max-width:1100px;margin:0 auto;padding:0 20px}

header{border-bottom:1px solid var(--border);background:var(--bg)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{font-weight:800;font-size:24px;display:flex;align-items:center;gap:4px}
.logo span{background:var(--accent);color:var(--accent-text);padding:2px 8px;border-radius:6px}
.nav-links{display:flex;align-items:center;gap:22px;color:var(--muted);font-weight:500}
.nav-links a:hover{color:var(--text)}
#themeBtn{background:var(--bg2);border:1px solid var(--border);color:var(--text);width:44px;height:44px;border-radius:10px;cursor:pointer;font-size:18px}

.hero{padding:50px 0 20px}
.hero h1{font-size:clamp(30px,5vw,48px);line-height:1.15;font-weight:800}
.hl{background:var(--accent);color:var(--accent-text);padding:0 10px;border-radius:8px}
.hero p{color:var(--muted);margin-top:14px;max-width:720px;font-size:18px}

/* Product listing */
.shop-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin:34px 0}
.card{background:var(--card);border:1px solid var(--border);border-radius:14px;overflow:hidden;display:flex;flex-direction:column;transition:transform .15s,border-color .15s}
.card:hover{transform:translateY(-3px);border-color:var(--accent)}
.card img{width:100%;aspect-ratio:3/4;object-fit:cover;display:block;background:var(--bg2)}
.card-body{padding:16px;display:flex;flex-direction:column;gap:6px;flex:1}
.card-body h2{font-size:18px;line-height:1.3}
.card-body p{color:var(--muted);font-size:14px}
.card-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:10px}
.card-price{font-weight:800;font-size:20px}
.card-btn{background:var(--accent);color:var(--accent-text);font-weight:700;padding:8px 16px;border-radius:8px;font-size:14px}

/* Product detail */
.crumbs{margin-top:24px;color:var(--muted);font-size:14px}
.crumbs a:hover{color:var(--text)}
.product{display:grid;grid-template-columns:1.1fr 1fr;gap:36px;margin:24px 0 36px;align-items:start}
.gallery .main{width:100%;border-radius:14px;border:1px solid var(--border);background:var(--bg2);aspect-ratio:3/4;object-fit:cover;display:block}
.thumbs{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:10px}
.thumbs img{width:100%;aspect-ratio:3/4;object-fit:cover;border-radius:8px;border:2px solid var(--border);cursor:pointer;background:var(--bg2)}
.thumbs img.active{border-color:var(--accent)}
.info h1{font-size:28px;font-weight:800;line-height:1.25}
.price{margin:14px 0;font-size:34px;font-weight:800}
.price small{font-size:16px;color:var(--muted);font-weight:500;margin-left:8px}
.badges{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0 20px}
.badges span{background:var(--bg2);border:1px solid var(--border);padding:5px 12px;border-radius:999px;font-size:14px;color:var(--muted)}
.btn{display:inline-block;background:var(--accent);color:var(--accent-text);font-weight:700;padding:14px 28px;border-radius:10px;border:0;font-size:17px;cursor:pointer}
.btn:hover{filter:brightness(.93)}
.btn.disabled{opacity:.6;pointer-events:none}
.note{color:var(--muted);font-size:14px;margin-top:10px}

section.block{margin:44px 0}
section.block h2{font-size:24px;font-weight:800;margin-bottom:14px}
.list{list-style:none;display:grid;gap:8px}
.list li{padding:12px 16px;background:var(--card);border:1px solid var(--border);border-radius:10px}
.list li b{color:var(--accent)}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.step{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:18px}
.step b{display:block;margin-bottom:4px}
.step p{color:var(--muted);font-size:15px}
details{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:14px 16px;margin-bottom:10px}
summary{cursor:pointer;font-weight:600}
details p{color:var(--muted);margin-top:8px}

footer{border-top:1px solid var(--border);padding:26px 0;color:var(--muted);text-align:center;font-size:14px;margin-top:50px}

@media(max-width:900px){.shop-grid{grid-template-columns:1fr 1fr}}
@media(max-width:820px){
  .product{grid-template-columns:1fr}
  .grid4{grid-template-columns:1fr 1fr}
  .nav-links{gap:14px;font-size:14px}
}
@media(max-width:520px){.shop-grid{grid-template-columns:1fr}}