:root{
  --primary:#ef4056;
  --primary-dark:#d63350;
  --text:#212121;
  --muted:#757575;
  --bg:#f5f5f5;
  --card:#ffffff;
  --border:#e0e0e0;
  --radius:12px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:"Vazirmatn",Tahoma,system-ui,sans-serif;
  background:var(--bg);color:var(--text);line-height:1.7;
}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 16px}

/* Header */
.site-header{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:50}
.header-inner{display:flex;align-items:center;gap:16px;padding:12px 0}
.logo{font-weight:800;font-size:22px;color:var(--primary)}
.search-form{flex:1;position:relative;display:flex}
.search-form input{flex:1;border:1px solid var(--border);border-radius:var(--radius) 0 0 var(--radius);padding:10px 14px;font:inherit;outline:none}
.search-form input:focus{border-color:var(--primary)}
.search-form button{background:var(--primary);color:#fff;border:0;padding:0 20px;border-radius:0 var(--radius) var(--radius) 0;cursor:pointer;font:inherit}
.nav a{margin-inline-start:16px;color:var(--muted)}
.nav a:hover{color:var(--primary)}
.suggest-box{position:absolute;top:100%;right:0;left:0;background:#fff;border:1px solid var(--border);border-radius:0 0 var(--radius) var(--radius);display:none;max-height:320px;overflow:auto;z-index:60}
.suggest-box.open{display:block}
.suggest-box a{display:block;padding:10px 14px;border-bottom:1px solid #f0f0f0}
.suggest-box a:hover{background:#fafafa}

/* Main */
.main-content{padding:24px 0;min-height:60vh}

/* Hero */
.hero{text-align:center;padding:32px 16px;background:linear-gradient(135deg,#ef4056 0%,#ff7a8a 100%);color:#fff;border-radius:var(--radius);margin-bottom:24px}
.hero h1{margin:0 0 8px;font-size:26px}
.hero p{margin:0;opacity:.9}

/* Stats */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:24px}
.stats>div{background:#fff;border-radius:var(--radius);padding:16px;text-align:center;border:1px solid var(--border)}
.stats strong{display:block;font-size:22px;color:var(--primary)}
.stats span{color:var(--muted);font-size:14px}

/* Section */
.section-title{font-size:18px;margin:24px 0 12px}

/* Grid */
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
@media(min-width:640px){.grid{grid-template-columns:repeat(3,1fr)}}
@media(min-width:960px){.grid{grid-template-columns:repeat(4,1fr);gap:16px}}

/* Card */
.card{background:var(--card);border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);transition:.2s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-3px);box-shadow:0 8px 20px rgba(0,0,0,.08)}
.card-img{aspect-ratio:1;background:#fafafa;overflow:hidden}
.card-img img{width:100%;height:100%;object-fit:cover}
.card-body{padding:10px 12px 14px;display:flex;flex-direction:column;gap:8px;flex:1}
.card-title{font-size:14px;font-weight:500;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:40px}
.card-meta{display:flex;justify-content:space-between;align-items:center;margin-top:auto}
.price{color:var(--primary);font-weight:700;font-size:14px}
.stores{font-size:12px;color:var(--muted)}

/* Search page */
.search-layout{display:grid;grid-template-columns:1fr;gap:16px}
@media(min-width:900px){.search-layout{grid-template-columns:240px 1fr}}
.filters{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:16px;height:fit-content;position:sticky;top:80px}
.filters h3{margin:0 0 12px;font-size:16px}
.filters label{display:block;margin-bottom:12px;font-size:14px;color:var(--muted)}
.filters input,.filters select{width:100%;padding:8px 10px;border:1px solid var(--border);border-radius:8px;font:inherit;margin-top:4px}
.btn-primary{background:var(--primary);color:#fff;border:0;padding:10px 16px;border-radius:var(--radius);cursor:pointer;font:inherit;width:100%}
.btn-primary:hover{background:var(--primary-dark)}
.results-info{color:var(--muted);font-size:14px;margin-bottom:12px}

/* Product page */
.product-head{display:grid;grid-template-columns:1fr;gap:20px;background:#fff;border-radius:var(--radius);padding:20px;border:1px solid var(--border);margin-bottom:24px}
@media(min-width:768px){.product-head{grid-template-columns:280px 1fr}}
.product-image img{width:100%;border-radius:var(--radius)}
.product-info h1{margin:0 0 8px;font-size:20px}
.muted{color:var(--muted);font-size:14px}
.price-range{display:flex;gap:16px;flex-wrap:wrap;margin-top:12px}
.price-range strong{color:var(--primary)}

.offers{display:flex;flex-direction:column;gap:10px}
.offer{display:grid;grid-template-columns:1fr;gap:12px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:14px;align-items:center}
@media(min-width:700px){.offer{grid-template-columns:1fr auto auto auto;gap:20px}}
.offer.out{opacity:.6}
.offer-store{display:flex;align-items:center;gap:10px;font-weight:600}
.offer-store img{width:32px;height:32px;object-fit:contain;border-radius:6px}
.offer-price strong{color:var(--primary);font-size:16px}
.offer-price del{color:var(--muted);font-size:12px;margin-inline-end:8px}
.offer-stock{font-size:13px;color:var(--muted)}
.btn-go{background:var(--primary);color:#fff;padding:8px 14px;border-radius:8px;font-size:14px;text-align:center;white-space:nowrap}
.btn-go:hover{background:var(--primary-dark)}

/* Pagination */
.pagination{display:flex;gap:6px;justify-content:center;margin-top:20px;flex-wrap:wrap}
.pagination button{padding:8px 12px;border:1px solid var(--border);background:#fff;border-radius:8px;cursor:pointer;font:inherit}
.pagination button.active{background:var(--primary);color:#fff;border-color:var(--primary)}

/* Footer */
.site-footer{background:#fff;border-top:1px solid var(--border);padding:20px 0;text-align:center;color:var(--muted);font-size:14px;margin-top:40px}

/* 404 */
.not-found{text-align:center;padding:60px 20px}
.not-found h1{font-size:80px;margin:0;color:var(--primary)}
.not-found .btn-primary{display:inline-block;width:auto;margin-top:16px}