:root{
  --bg:#0f1115;
  --card:#171a21;
  --text:#f2f3f5;
  --muted:#a9b0bd;
  --border:#2a2f3a;
  --primary:#6ee7ff;
  --secondary:#2b313f;
  --danger:#ff6b6b;
  --shadow: 0 8px 22px rgba(0,0,0,.35);
  --radius: 14px;
}

.light{
  --bg:#f7f7fb;
  --card:#ffffff;
  --text:#131722;
  --muted:#616a78;
  --border:#e5e7ef;
  --primary:#0077ff;
  --secondary:#eef1f7;
  --danger:#d11a2a;
  --shadow: 0 8px 22px rgba(0,0,0,.08);
}

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

.container{max-width:1100px;margin:0 auto;padding:0 16px}

.navbar{
  position:sticky; top:0; z-index:10;
  border-bottom:1px solid var(--border);
  background:rgba(0,0,0,.15);
  backdrop-filter: blur(10px);
}

.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:12px 0;
  gap:14px;
}

.brand{font-weight:800; letter-spacing:.2px}
.nav-links{display:flex; gap:14px; align-items:center}
.nav-links a{
  color:var(--muted);
  text-decoration:none;
  padding:8px 10px;
  border-radius:10px;
}
.nav-links a.active, .nav-links a:hover{
  color:var(--text);
  background:rgba(255,255,255,.06);
}

.section{padding:28px 0}
.hero{padding:34px 0 18px}
.hero-inner{
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap:18px;
  align-items:stretch;
}
.hero h1{font-size:40px;margin:0 0 10px}
.hero p{color:var(--muted); line-height:1.5}
.hero-actions{display:flex; gap:10px; flex-wrap:wrap; margin:14px 0}
.hero-card{background:var(--card); border:1px solid var(--border); border-radius:var(--radius); padding:16px; box-shadow:var(--shadow)}
.list{margin:10px 0 0; padding-left:18px}
.small{font-size:13px}
.muted{color:var(--muted)}
.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:14px;
  box-shadow:var(--shadow);
}

.grid-3{
  display:grid;
  grid-template-columns: repeat(3,1fr);
  gap:14px;
}

.page-head h2{margin:0 0 6px}
.page-head{margin-bottom:14px}

.toolbar{
  display:grid;
  grid-template-columns: 1.3fr .8fr .8fr .6fr .4fr;
  gap:10px;
  align-items:center;
  margin-bottom:14px;
}

.input{
  width:100%;
  padding:10px 12px;
  border-radius:12px;
  border:1px solid var(--border);
  background:transparent;
  color:var(--text);
  outline:none;
}
.input:focus{border-color:var(--primary)}
.label{display:block; margin-top:10px; margin-bottom:6px; color:var(--muted); font-size:13px}

.checkbox{
  display:flex; gap:8px; align-items:center;
  color:var(--muted);
  font-size:14px;
}

.btn{
  border:none;
  border-radius:12px;
  padding:10px 12px;
  cursor:pointer;
  font-weight:650;
}
.btn-primary{background:var(--primary); color:#001018}
.btn-secondary{background:var(--secondary); color:var(--text)}
.btn-ghost{background:transparent; color:var(--muted); border:1px solid var(--border)}
.btn:hover{filter:brightness(1.03)}
.w-100{width:100%}

.layout{
  display:grid;
  grid-template-columns: 1fr 340px;
  gap:14px;
  align-items:start;
}

.grid-cards{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:12px;
}

.product{
  overflow:hidden;
  display:flex;
  flex-direction:column;
}
.product img{
  width:100%;
  height:150px;
  object-fit:cover;
  border-radius:12px;
  border:1px solid var(--border);
}
.product h4{margin:10px 0 6px}
.badges{display:flex; gap:8px; align-items:center; flex-wrap:wrap}
.badge{
  font-size:12px;
  padding:4px 8px;
  border-radius:999px;
  border:1px solid var(--border);
  color:var(--muted);
}
.price-row{
  display:flex; justify-content:space-between; align-items:center;
  margin-top:8px;
}
.unavailable{opacity:.55}

.cart{position:sticky; top:74px}
.cart-head{display:flex; align-items:center; justify-content:space-between}
.cart-items{display:flex; flex-direction:column; gap:10px; margin-top:10px}
.cart-item{
  border:1px solid var(--border);
  border-radius:12px;
  padding:10px;
}
.cart-item .top{
  display:flex; justify-content:space-between; align-items:start; gap:8px;
}
.cart-item .name{font-weight:750}
.cart-item .controls{
  display:flex; gap:8px; align-items:center; margin-top:8px;
}
.pill{
  border:1px solid var(--border);
  border-radius:999px;
  padding:6px 10px;
  background:transparent;
  color:var(--text);
  cursor:pointer;
}
.pill.danger{border-color:rgba(255,107,107,.5); color:var(--danger)}
.row{display:flex; justify-content:space-between; margin:8px 0}
hr{border:none;border-top:1px solid var(--border); margin:12px 0}

.footer{
  border-top:1px solid var(--border);
  padding:16px 0;
}
.footer-inner{display:flex; justify-content:space-between; gap:10px; flex-wrap:wrap}

@media (max-width: 980px){
  .hero-inner{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr}
  .layout{grid-template-columns:1fr}
  .grid-cards{grid-template-columns: repeat(2, 1fr)}
  .cart{position:static}
  .toolbar{grid-template-columns:1fr 1fr; }
}
@media (max-width: 520px){
  .grid-cards{grid-template-columns:1fr}
}