:root{
  --bg:#f5f7fb;
  --card:#ffffff;
  --soft:#eef4ff;
  --line:#dfe7f4;
  --text:#15233c;
  --muted:#6b7a90;
  --primary:#6c4df6;
  --primary-2:#8d5eff;
  --accent:#0ea5e9;
  --success:#0f9d69;
  --danger:#dc3545;
  --warning:#f59e0b;
  --shadow:0 18px 40px rgba(17, 24, 39, .08);
  --radius:22px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Arial,Helvetica,sans-serif;background:linear-gradient(180deg,#f7fbff 0%,#eef3fb 100%);color:var(--text)}
a{text-decoration:none;color:inherit}
button,input,select,textarea{font:inherit}
img{max-width:100%;display:block}
.container{width:min(1180px,calc(100% - 24px));margin:0 auto}
.topbar{position:sticky;top:0;z-index:90;background:rgba(255,255,255,.85);backdrop-filter:blur(10px);border-bottom:1px solid rgba(223,231,244,.9)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 0}
.brand-head{display:flex;align-items:center;gap:14px}
.brand-logo{width:58px;height:58px;border-radius:18px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);object-fit:cover}
.brand-fallback{width:58px;height:58px;border-radius:18px;background:linear-gradient(135deg,var(--primary),var(--accent));display:grid;place-items:center;color:#fff;font-weight:700;box-shadow:var(--shadow)}
.brand-titles h1{margin:0;font-size:1.35rem}
.brand-titles p{margin:4px 0 0;color:var(--muted);font-size:.95rem}
.top-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.pill-btn,.ghost-btn,.solid-btn,.danger-btn{border:0;border-radius:999px;padding:10px 16px;cursor:pointer;transition:.2s ease;display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700}
.pill-btn{background:rgba(108,77,246,.1);color:var(--primary)}
.ghost-btn{background:#fff;color:var(--text);border:1px solid var(--line)}
.solid-btn{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;box-shadow:0 12px 26px rgba(108,77,246,.23)}
.danger-btn{background:rgba(220,53,69,.1);color:var(--danger)}
.pill-btn:hover,.ghost-btn:hover,.solid-btn:hover,.danger-btn:hover{transform:translateY(-1px)}
.hero{padding:24px 0 20px}
.hero-card{background:linear-gradient(135deg,#fff 0%,#fbfcff 35%,#f4f7ff 100%);border:1px solid var(--line);border-radius:34px;padding:24px;box-shadow:var(--shadow)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:18px;align-items:stretch}
.hero-copy h2{font-size:2.1rem;margin:0 0 12px;line-height:1.1}
.hero-copy p{margin:0;color:var(--muted);font-size:1rem;line-height:1.7}
.stat-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:20px}
.stat-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:16px;min-height:120px}
.stat-card h3{margin:0;font-size:1.6rem}
.stat-card p{margin:8px 0 0;color:var(--muted)}
.quick-info{display:grid;gap:12px}
.info-box{background:linear-gradient(135deg,rgba(14,165,233,.08),rgba(108,77,246,.08));border:1px solid rgba(108,77,246,.12);padding:18px;border-radius:24px}
.info-box strong{display:block;font-size:1rem;margin-bottom:6px}
.page-grid{display:grid;grid-template-columns:290px 1fr;gap:18px;align-items:start;padding-bottom:90px}
.side-card,.content-card,.admin-card{background:#fff;border:1px solid var(--line);border-radius:28px;box-shadow:var(--shadow)}
.side-card{padding:18px;position:sticky;top:90px}
.content-card{padding:18px}
.section-title{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.section-title h3{margin:0;font-size:1.1rem}
.category-list{display:grid;gap:10px}
.category-btn{background:linear-gradient(135deg,#fff,#f7faff);border:1px solid var(--line);border-radius:20px;padding:14px 16px;cursor:pointer;color:var(--text);font-weight:700;text-align:left}
.category-btn.active{background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;border-color:transparent}
.menu-items{display:grid;gap:14px}
.item-card{border:1px solid var(--line);border-radius:24px;padding:16px;background:linear-gradient(180deg,#fff,#fbfdff)}
.item-head{display:grid;grid-template-columns:1fr 92px;gap:16px;align-items:start}
.item-head h4{margin:0 0 6px;font-size:1.1rem}
.item-head p{margin:0;color:var(--muted);line-height:1.5;font-size:.94rem}
.item-thumb{width:92px;height:92px;border-radius:18px;object-fit:cover;border:1px solid var(--line);background:#f5f7fa}
.variant-row{display:grid;grid-template-columns:1fr auto auto;gap:10px;align-items:center;padding:10px 0;border-top:1px dashed var(--line)}
.variant-meta strong{display:block}
.variant-meta span{display:block;color:var(--muted);font-size:.9rem;margin-top:3px}
.qty-box{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:999px;padding:6px;background:#fff}
.qty-btn{width:32px;height:32px;border-radius:50%;border:0;background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;font-weight:700;cursor:pointer}
.qty-value{min-width:20px;text-align:center;font-weight:700}
.cart-summary{display:grid;gap:14px}
.cart-line{display:flex;justify-content:space-between;gap:10px;padding:10px 0;border-bottom:1px dashed var(--line)}
.cart-line:last-child{border-bottom:0}
.cart-item-meta small{display:block;color:var(--muted);margin-top:4px}
.cart-total{padding-top:10px;border-top:2px solid var(--line);display:grid;gap:8px}
.empty-note{padding:18px;border:1px dashed var(--line);border-radius:20px;color:var(--muted);text-align:center;background:#fafcff}
.footer{padding:28px 0 42px;color:var(--muted);text-align:center}
.badge{display:inline-flex;align-items:center;gap:6px;padding:8px 12px;border-radius:999px;background:rgba(15,157,105,.12);color:var(--success);font-weight:700;font-size:.9rem}
.modal{position:fixed;inset:0;background:rgba(15,23,42,.6);display:none;align-items:center;justify-content:center;padding:18px;z-index:120}
.modal.show{display:flex}
.modal-card{width:min(580px,100%);background:#fff;border-radius:30px;border:1px solid var(--line);box-shadow:var(--shadow);padding:22px}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.form-row{display:grid;gap:8px}
.form-row.full{grid-column:1/-1}
.label{font-weight:700;font-size:.94rem}
.input,.textarea,.select{width:100%;padding:13px 14px;border-radius:16px;border:1px solid var(--line);background:#fff;outline:none}
.textarea{min-height:100px;resize:vertical}
.inline-actions{display:flex;gap:10px;flex-wrap:wrap}
.notice{padding:12px 14px;border-radius:16px;margin-bottom:12px}
.notice.success{background:rgba(15,157,105,.12);color:#0b7b52}
.notice.error{background:rgba(220,53,69,.1);color:#b42318}
.toolbar{display:flex;justify-content:space-between;gap:12px;align-items:center;flex-wrap:wrap;margin-bottom:16px}
.summary-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.summary-box{background:linear-gradient(135deg,#fff,#f7faff);border:1px solid var(--line);border-radius:22px;padding:16px}
.summary-box strong{display:block;font-size:1.6rem;margin-bottom:6px}
.admin-layout{display:grid;grid-template-columns:1fr;gap:16px;padding:22px 0 50px}
.admin-card{padding:18px}
.admin-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:18px}
.table{width:100%;border-collapse:collapse;background:#fff}
.table th,.table td{padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top;text-align:left;font-size:.95rem}
.table th{background:#f7faff}
.table img{width:58px;height:58px;border-radius:14px;object-fit:cover;border:1px solid var(--line)}
.small{font-size:.9rem;color:var(--muted)}
.hr{height:1px;background:var(--line);margin:16px 0}
.brand-list{display:grid;gap:12px}
.brand-card{border:1px solid var(--line);border-radius:22px;padding:14px;display:grid;grid-template-columns:auto 1fr auto;gap:14px;align-items:center;background:linear-gradient(180deg,#fff,#fbfdff)}
.brand-card .logo{width:62px;height:62px;border-radius:18px;object-fit:cover;border:1px solid var(--line);background:#f4f7fb}
.helper{font-size:.88rem;color:var(--muted);line-height:1.5}
@media (max-width: 980px){
  .hero-grid,.page-grid,.admin-grid,.summary-grid{grid-template-columns:1fr}
  .side-card{position:static}
  .item-head{grid-template-columns:1fr 84px}
}
@media (max-width: 700px){
  .container{width:min(100% - 16px,1180px)}
  .hero-copy h2{font-size:1.55rem}
  .stat-strip,.form-grid{grid-template-columns:1fr}
  .topbar-inner{align-items:flex-start}
  .brand-head{align-items:flex-start}
  .top-actions{justify-content:flex-end}
  .variant-row{grid-template-columns:1fr;align-items:flex-start}
  .brand-card{grid-template-columns:1fr}
}