:root{
  --bg:#f4f6f8;--panel:#fff;--text:#17202a;--muted:#667085;--line:#e5e7eb;
  --dark:#111827;--success:#137a42;--danger:#a72929;
}
*{box-sizing:border-box}
body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--text)}
a{text-decoration:none;color:inherit}
.btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:10px;padding:10px 14px;font-weight:700;background:var(--dark);color:#fff;cursor:pointer}
.btn.light{background:#fff;color:#111827;border:1px solid var(--line)}
.btn.danger{background:#fff;color:var(--danger);border:1px solid #efcaca}
.btn.small{padding:7px 10px;font-size:12px}
.flash{padding:12px 14px;border-radius:10px;margin:0 0 14px}
.flash.success{background:#eaf8ef;color:#116235;border:1px solid #bfe6cc}
.flash.error{background:#fff0f0;color:#8a2020;border:1px solid #efc1c1}
.setup-body{min-height:100vh;display:grid;place-items:center;padding:24px;background:linear-gradient(145deg,#eef1f5,#d8dee7)}
.setup-card{width:min(760px,100%);background:#fff;padding:28px;border-radius:18px;box-shadow:0 20px 60px rgba(0,0,0,.1)}
.setup-card h1{margin-top:0}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
label{font-size:12px;font-weight:700;display:block}
input,select,textarea{width:100%;margin-top:6px;padding:11px;border:1px solid #d0d5dd;border-radius:9px;background:#fff}
textarea{min-height:90px}
.admin-app{display:grid;grid-template-columns:230px 1fr;min-height:100vh}
.sidebar{background:#111827;color:#fff;padding:22px 16px}
.brand{font-size:21px;font-weight:800;margin:0 10px 28px}
.brand small{display:block;font-size:11px;font-weight:500;color:#aab2c0;margin-top:4px}
.nav a{display:block;padding:11px 12px;border-radius:9px;color:#d7dce5;margin:4px 0;font-size:14px}
.nav a:hover,.nav a.active{background:#263244;color:#fff}
.admin-main{padding:24px 28px 50px}
.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;gap:15px}
.topbar h1{font-size:24px;margin:0}
.muted{color:var(--muted)}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;box-shadow:0 3px 14px rgba(16,24,40,.04)}
.card + .card{margin-top:18px}
.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.row3{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.table-wrap{overflow:auto}
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:12px 10px;border-bottom:1px solid var(--line);font-size:13px;vertical-align:middle}
th{font-size:11px;text-transform:uppercase;color:var(--muted)}
.badge{display:inline-block;border-radius:999px;padding:4px 8px;font-size:11px;background:#eef2f6}
.actions{display:flex;gap:6px;flex-wrap:wrap}
.colorbox{display:grid;grid-template-columns:1fr 90px;gap:8px}
.colorbox input[type=color]{height:42px;padding:4px}
.logo-preview{width:90px;height:90px;object-fit:contain;border:1px solid var(--line);border-radius:12px;background:#fff}
.switchline{display:flex;align-items:center;justify-content:space-between;border:1px solid var(--line);border-radius:11px;padding:13px 14px}
.switch{width:auto;margin:0}
.public-body{min-height:100vh;background-size:cover;background-position:center;background-attachment:fixed;padding:28px 16px}
.public-shell{max-width:560px;margin:auto;background:rgba(255,255,255,.88);backdrop-filter:blur(12px);border-radius:28px;padding:24px;box-shadow:0 22px 70px rgba(0,0,0,.24)}
.public-logo{width:120px;height:120px;object-fit:contain;border-radius:24px;background:#fff;display:block;margin:0 auto 12px}
.public-head{text-align:center;margin-bottom:18px}
.public-head h1{margin:0;font-size:28px}
.public-head p{margin:7px 0 0}
.link-list{display:flex;flex-direction:column;gap:11px}
.public-link{display:flex;gap:11px;align-items:center;justify-content:center;padding:15px 16px;border-radius:16px;font-weight:800;color:#fff;box-shadow:0 8px 20px rgba(0,0,0,.12)}
.catalog-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.product-card{overflow:hidden;background:#fff;border:1px solid #e7e7e7;border-radius:15px}
.product-card img{width:100%;aspect-ratio:1/1;object-fit:cover;background:#eef1f4}
.product-body{padding:12px}
.product-body h3{font-size:15px;margin:0 0 5px}
.product-body p{font-size:12px;margin:5px 0;color:#667085}
.product-price{font-weight:800;margin:7px 0}
.backlink{display:inline-block;margin-bottom:15px;font-size:13px;font-weight:700}
.prompt-shell{max-width:760px;margin:30px auto;padding:0 16px}
.prompt-output{white-space:pre-wrap;background:#101828;color:#f8fafc;padding:18px;border-radius:13px;min-height:180px}
@media(max-width:800px){
 .admin-app{grid-template-columns:1fr}.sidebar{display:none}.admin-main{padding:18px}
 .row,.row3,.form-grid{grid-template-columns:1fr}
}