:root{
  --primary:#00a99d;
  --primary-dark:#00857b;
  --danger:#e53e3e;
  --bg:#f5f6f8;
  --card:#ffffff;
  --text:#222;
  --muted:#777;
  --border:#e2e5e9;
}
*{box-sizing:border-box}
body{margin:0;font-family:Tahoma,'Vazirmatn',sans-serif;background:var(--bg);color:var(--text);direction:rtl}
a{text-decoration:none;color:inherit}
.container{max-width:1100px;margin:0 auto;padding:0 16px}

header.site-header{background:var(--card);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:50}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.logo{font-size:22px;font-weight:bold;color:var(--primary)}
.nav-actions{display:flex;gap:10px;align-items:center}
.btn{display:inline-block;padding:9px 18px;border-radius:8px;border:none;cursor:pointer;font-size:14px;font-weight:600}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark)}
.btn-outline{background:transparent;border:1px solid var(--primary);color:var(--primary)}
.btn-danger{background:var(--danger);color:#fff}
.btn-sm{padding:6px 12px;font-size:13px}

.search-bar{display:flex;gap:8px;margin:20px 0}
.search-bar input, .search-bar select{padding:10px;border:1px solid var(--border);border-radius:8px;font-size:14px}
.search-bar input[type=text]{flex:1}

.categories-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:12px;margin:20px 0}
.cat-card{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:16px 8px;text-align:center;font-size:13px;transition:.15s}
.cat-card:hover{border-color:var(--primary);color:var(--primary)}

.ads-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px;margin:16px 0}
.ad-card{background:var(--card);border:1px solid var(--border);border-radius:10px;overflow:hidden;transition:.15s}
.ad-card:hover{box-shadow:0 4px 14px rgba(0,0,0,.08)}
.ad-card img{width:100%;height:360px;object-fit:cover;background:#eee}
.ad-card .body{padding:10px 12px}
.ad-card .title{font-size:14px;font-weight:600;margin:0 0 6px;line-height:1.4;height:38px;overflow:hidden}
.ad-card .price{color:var(--primary);font-weight:700;font-size:14px}
.ad-card .meta{color:var(--muted);font-size:12px;margin-top:6px}

.card{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:20px}
.form-group{margin-bottom:16px}
.form-group label{display:block;margin-bottom:6px;font-size:14px;font-weight:600}
.form-group input, .form-group select, .form-group textarea{width:100%;padding:10px;border:1px solid var(--border);border-radius:8px;font-size:14px;font-family:inherit}
.form-group textarea{min-height:140px;resize:vertical}
.form-row{display:flex;gap:12px}
.form-row .form-group{flex:1}

.captcha-wrap{display:flex;align-items:center;gap:10px}
.captcha-wrap img{border:1px solid var(--border);border-radius:8px;background:#fff}
.captcha-refresh{cursor:pointer;color:var(--primary);font-size:13px;background:none;border:none}
.captcha-input{letter-spacing:6px;font-size:22px !important;font-weight:bold;text-align:center;max-width:160px}

.alert{padding:12px 16px;border-radius:8px;margin-bottom:16px;font-size:14px}
.alert-success{background:#e6fbf9;color:#037a70;border:1px solid #b6ede8}
.alert-error{background:#fdecec;color:#c0392b;border:1px solid #f6c8c4}
.alert-info{background:#eef6ff;color:#2563eb;border:1px solid #cfe2ff}

table{width:100%;border-collapse:collapse;background:var(--card)}
table th, table td{padding:10px 12px;border-bottom:1px solid var(--border);font-size:13px;text-align:right}
table th{background:#fafbfc;font-weight:700}
.badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:12px;font-weight:600}
.badge-pending{background:#fff4de;color:#b8860b}
.badge-approved{background:#e6fbf9;color:#037a70}
.badge-rejected{background:#fdecec;color:#c0392b}
.badge-sold{background:#eee;color:#555}

.admin-layout{display:flex;min-height:100vh}
.admin-sidebar{width:230px;background:#161c24;color:#fff;flex-shrink:0}
.admin-sidebar a{display:block;padding:12px 20px;color:#cfd8e3;font-size:14px}
.admin-sidebar a:hover, .admin-sidebar a.active{background:#00a99d;color:#fff}
.admin-sidebar .brand{padding:20px;font-size:18px;font-weight:bold;color:#fff;border-bottom:1px solid #263041}
.admin-content{flex:1;padding:24px;max-width:calc(100% - 230px)}
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin-bottom:24px}
.stat-card{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:18px}
.stat-card .num{font-size:26px;font-weight:bold;color:var(--primary)}
.stat-card .label{color:var(--muted);font-size:13px;margin-top:4px}

footer.site-footer{margin-top:40px;padding:24px 0;border-top:1px solid var(--border);color:var(--muted);font-size:13px;text-align:center}

.table-wrap{overflow-x:auto}

.banner-strip{margin:16px 0;border-radius:10px;overflow:hidden;border:1px solid var(--border)}
.banner-strip img{width:100%;display:block;max-height:220px;object-fit:cover}

@media(max-width:700px){
  .admin-layout{flex-direction:column}
  .admin-sidebar{width:100%}
  .admin-content{max-width:100%;padding:16px}

  .container{padding:0 12px}
  .header-inner{flex-wrap:wrap;gap:10px;padding:10px 0}
  .logo{font-size:18px}
  .nav-actions{flex-wrap:wrap;gap:6px;width:100%;justify-content:flex-start}
  .nav-actions .btn{padding:7px 12px;font-size:13px}

  .search-bar{flex-wrap:wrap}
  .search-bar input[type=text]{width:100%;flex:1 1 100%}
  .search-bar select{flex:1}
  .search-bar button{flex:1}

  .form-row{flex-direction:column;gap:0}

  .captcha-wrap{flex-wrap:wrap}
  .captcha-wrap img{max-width:100%;height:auto}

  table{display:block;overflow-x:auto;white-space:nowrap}

  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .ad-card img{height:130px}

  .card{padding:16px}
}

@media(max-width:420px){
  .stat-grid{grid-template-columns:1fr}
  .categories-grid{grid-template-columns:repeat(auto-fill,minmax(100px,1fr))}
  .ads-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}
}