:root{
  --bg:#eef2f7;
  --surface:#ffffff;
  --surface-2:#f8fafc;
  --text:#243b5a;
  --muted:#7f92b0;
  --line:#dce5f1;
  --primary:#4f8df7;
  --primary-2:#8f88f6;
  --navy:#173257;
  --success:#16a34a;
  --warning:#f59e0b;
  --danger:#dc2626;
  --shadow:0 12px 32px rgba(28,47,82,.08);
  --radius:22px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.45}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit}
.app-body{background:var(--bg)}
.app-shell{display:grid;grid-template-columns:280px minmax(0,1fr);min-height:100vh}
.sidebar{background:linear-gradient(180deg,#173257,#244d87);color:#fff;padding:20px;position:sticky;top:0;height:100vh;overflow:auto}
.brand-wrap{display:flex;gap:14px;align-items:center;margin-bottom:22px}
.brand-mark{width:48px;height:48px;border-radius:16px;background:rgba(255,255,255,.14);display:grid;place-items:center;font-weight:800}
.brand{font-size:20px;font-weight:800}
.brand-sub{font-size:12px;opacity:.78}
.nav-group-title{font-size:12px;letter-spacing:.04em;text-transform:uppercase;opacity:.68;margin:18px 0 10px}
.nav-links{display:grid;gap:8px}
.nav-links a{padding:12px 14px;border-radius:14px;color:rgba(255,255,255,.88);background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08)}
.nav-links a:hover,.nav-links a.active{background:rgba(255,255,255,.16);color:#fff}
.content{min-width:0;padding:22px}
.topbar{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:18px;background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:18px 20px;box-shadow:var(--shadow)}
.topbar-title{font-size:30px;font-weight:800;line-height:1.05}
.topbar-sub,.subtle,.muted{color:var(--muted)}
.topbar-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.pill,.badge{display:inline-flex;align-items:center;gap:8px;padding:9px 14px;border-radius:999px;background:#edf4ff;color:#4b7de7;font-weight:700;font-size:13px}
.hero-grid,.grid{display:grid;gap:18px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.hero-grid{grid-template-columns:1.5fr 1fr;align-items:stretch}
.hero-panel{padding:28px;border-radius:28px;color:#fff;background:linear-gradient(135deg,#1f4d8f,#4688f6 58%,#8f88f6);box-shadow:var(--shadow)}
.hero-panel h1{margin:10px 0 10px;font-size:56px;line-height:1.02}
.hero-panel p{margin:0 0 18px;color:rgba(255,255,255,.94);font-size:16px}
.hero-badge{display:inline-flex;padding:10px 16px;border-radius:999px;background:rgba(255,255,255,.92);color:#4b7de7;font-weight:800;font-size:14px}
.hero-stats,.kpi-row,.mini-actions,.action-stack,.two-actions,.form-row,.mobile-inline-actions,.calc-actions{display:flex;gap:12px;flex-wrap:wrap}
.kpi,.stat-card{min-width:150px;flex:1;padding:18px;border-radius:20px;background:rgba(255,255,255,.12);backdrop-filter:blur(4px);border:1px solid rgba(255,255,255,.16)}
.kpi strong{display:block;font-size:32px;line-height:1;font-weight:900;margin-bottom:6px}
.kpi span,.stat-card span{display:block;color:rgba(255,255,255,.88)}
.stat-card strong{display:block;margin-bottom:5px}
.card,.mobile-step-card,.compact-card,.slide-admin-card{background:var(--surface);border:1px solid var(--line);border-radius:24px;padding:20px;box-shadow:var(--shadow)}
.metric-card{min-height:132px}
.metric-number{font-size:32px;font-weight:900;line-height:1.1;margin:8px 0}
.section-head{display:flex;justify-content:space-between;align-items:center;gap:14px;margin-bottom:14px}
.section-head h3,.detail-title,.mobile-detail-title,.page-title{margin:0;font-size:26px;line-height:1.1}
.summary-box,.notice,.error{padding:14px 16px;border-radius:18px;border:1px solid var(--line);background:var(--surface-2)}
.notice{background:#f5f9ff;color:#2f5db1}
.error{background:#fff2f2;border-color:#ffd2d2;color:#a52a2a}
.btn{appearance:none;border:none;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 18px;border-radius:16px;background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;font-weight:800;box-shadow:0 10px 24px rgba(79,141,247,.18)}
.btn.light{background:#eef4ff;color:#456ec6;box-shadow:none}
.btn.soft{background:#f3f6fb;color:#34507d;box-shadow:none}
.btn.success{background:linear-gradient(135deg,#24b36b,#4fd38d)}
.btn.warn{background:linear-gradient(135deg,#f59e0b,#f6b756)}
.btn-outline{background:transparent;border:1px solid var(--line);color:var(--text);box-shadow:none}
.btn-block,.btn-block-mobile{display:flex;width:100%}
.label{display:block;font-size:14px;font-weight:700;margin:0 0 8px;color:#506683}
.input,select,textarea,input[type="number"],input[type="text"],input[type="email"],input[type="password"]{width:100%;height:48px;padding:0 14px;border-radius:14px;border:1px solid #d5e0ef;background:#fff;color:var(--text);outline:none}
textarea{height:auto;padding:12px 14px;min-height:110px;resize:vertical}
.input:focus,select:focus,textarea:focus,input:focus{border-color:#91b5ff;box-shadow:0 0 0 4px rgba(79,141,247,.12)}
.stack-lg>*+*{margin-top:14px}
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:18px;background:#fff}
table{width:100%;border-collapse:collapse}
th,td{padding:14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top} th{background:#f8fbff;color:#577095;font-size:13px}
.spec-grid-2,.mobile-spec-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.spec,.meta-item{padding:14px;border-radius:18px;background:#f8fafc;border:1px solid var(--line)}
.spec span,.meta-item span{display:block;color:var(--muted);font-size:14px;margin-bottom:4px}
.spec strong,.meta-item strong{font-size:18px}
.catalog-split{display:grid;grid-template-columns:210px minmax(0,1fr) 340px;gap:16px;align-items:start}
.category-stack,.product-grid-compact,.product-cell-compact,.admin-list-card,.cart-stack,.reorder-stack{display:grid;gap:14px}
.category-option,.product-card-compact{background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px;box-shadow:var(--shadow)}
.product-grid-compact{grid-template-columns:repeat(4,minmax(0,1fr))}
.product-card-compact .thumb,.mobile-product-card .thumb,.detail-thumb-trigger,.detail-hero-button,.mobile-thumb-trigger{border-radius:18px;overflow:hidden;background:#f1f5f9}
.product-card-compact .thumb img,.mobile-product-card .thumb img{width:100%;aspect-ratio:1/1;object-fit:cover}
.product-card-compact .body,.mobile-product-card .body{padding-top:10px}
.right-sticky,.sticky-detail{position:sticky;top:22px}
.detail-gallery-grid,.detail-thumb-row,.mobile-thumb-row{display:grid;gap:12px}
.detail-gallery-grid{grid-template-columns:1fr}
.detail-thumb-row,.mobile-thumb-row{grid-template-columns:repeat(3,minmax(0,1fr))}
.detail-hero-button,.mobile-thumb-trigger,.detail-thumb-trigger{position:relative;border:none;padding:0;cursor:pointer}
.detail-hero-img{width:100%;aspect-ratio:16/7;object-fit:cover;transition:transform .18s ease}
.detail-hero-button.zoomable:hover .detail-hero-img{transform:scale(2.1)}
.mobile-hero{aspect-ratio:16/5}
.detail-hero-button::after{content:'';position:absolute;inset:0;background:radial-gradient(circle at center,transparent 0,transparent 34%,rgba(255,255,255,.12) 56%,rgba(0,0,0,.08) 100%);opacity:0;transition:opacity .18s ease;pointer-events:none}
.detail-hero-button.zoomable:hover::after{opacity:1}
.mobile-quick-header,.detail-page-head{display:flex;justify-content:space-between;align-items:flex-start;gap:14px;margin-bottom:14px}
.compact-badge{display:inline-flex;padding:8px 12px;border-radius:999px;background:#eef4ff;color:#4b7de7;font-weight:800;font-size:12px}
.mobile-step-head{font-weight:900;font-size:20px;margin-bottom:12px}
.mobile-chip-scroll,.mobile-product-scroll{display:flex;gap:12px;overflow:auto;padding-bottom:4px;scroll-snap-type:x proximity}
.mobile-choice-chip,.mobile-product-card{scroll-snap-align:start;flex:0 0 auto}
.mobile-choice-chip{min-width:150px;padding:12px 14px;border-radius:18px;border:1px solid var(--line);background:#fff;display:grid;gap:6px}
.mobile-choice-chip.active,.mobile-product-card.active,.category-option.active{border-color:#8fb3ff;box-shadow:0 0 0 3px rgba(79,141,247,.10)}
.mobile-choice-chip span{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:12px;background:#eff4fb;color:#617ca0;font-weight:800}
.mobile-product-card{width:210px;padding:10px;border-radius:20px;border:1px solid var(--line);background:#fff}
.mobile-product-meta{display:grid;gap:14px;margin-top:14px}
.mobile-price-pill{display:inline-flex;padding:11px 14px;border-radius:14px;background:#eff5ff;color:#315fb6;font-weight:900}
.mobile-measure-grid,.compact-form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.mobile-summary-box,.calc-panel{background:var(--navy);color:#fff;border-radius:22px;padding:18px}
.mobile-summary-box .info-row,.detail-summary .info-row{display:flex;justify-content:space-between;gap:14px;padding:8px 0;font-weight:700}
.edge-selects,.mobile-edge-selects{display:flex;gap:8px;flex-wrap:wrap}
.edge-chip{display:inline-flex;align-items:center;gap:8px;padding:10px 12px;border-radius:14px;background:#fff;border:1px solid var(--line)}
.login-body{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#f1f5fb,#edf3ff)}
.login-shell{width:min(1180px,94vw);display:grid;grid-template-columns:1.15fr .85fr;border-radius:34px;overflow:hidden;box-shadow:0 24px 60px rgba(29,43,77,.12);background:#fff}
.login-visual{padding:48px;background:linear-gradient(135deg,#1f4d8f,#4688f6 60%,#8f88f6);color:#fff}
.login-visual h1{font-size:64px;line-height:1.02;margin:18px 0 14px}
.login-visual p{font-size:18px;color:rgba(255,255,255,.95)}
.login-panel{display:grid;place-items:center;padding:34px;background:#fff}
.login-card{width:min(420px,100%);padding:28px;border-radius:28px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}
.login-brand{display:inline-flex;padding:9px 14px;border-radius:999px;background:#eef4ff;color:#4b7de7;font-weight:800;margin-bottom:10px}
.login-card h2{font-size:36px;margin:0 0 6px}
.thumb-empty,.muted-empty,.empty-state{display:grid;place-items:center;min-height:120px;text-align:center;color:var(--muted);background:#f8fafc;border:1px dashed #c9d6e8;border-radius:18px;padding:20px}
.cart-icon-btn{position:relative;display:inline-grid;place-items:center;width:54px;height:54px;border-radius:16px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}
.cart-count-badge{position:absolute;top:-6px;right:-6px;min-width:24px;height:24px;padding:0 7px;border-radius:999px;background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;font-size:12px;font-weight:800;display:grid;place-items:center}
.lightbox-modal{position:fixed;inset:0;background:rgba(12,21,37,.78);display:none;align-items:center;justify-content:center;padding:20px;z-index:9999}
.lightbox-modal.open{display:flex}
.lightbox-inner{position:relative;max-width:min(1100px,95vw);max-height:90vh}
.lightbox-inner img{max-width:100%;max-height:90vh;border-radius:18px;box-shadow:0 20px 50px rgba(0,0,0,.35)}
.lightbox-close{position:absolute;top:-14px;right:-14px;width:42px;height:42px;border:none;border-radius:999px;background:#fff;cursor:pointer;font-size:22px;font-weight:800}
.mobile-only{display:none!important}
.no-print{display:inline-flex}
@media (max-width:1280px){
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .product-grid-compact{grid-template-columns:repeat(3,minmax(0,1fr))}
  .catalog-split{grid-template-columns:190px minmax(0,1fr) 310px}
  .hero-panel h1{font-size:46px}
}
@media (max-width:980px){
  .app-shell{grid-template-columns:1fr}
  .sidebar{position:fixed;left:0;top:0;bottom:0;width:min(86vw,320px);z-index:70;transform:translateX(-105%);transition:transform .22s ease;height:auto}
  .app-shell.sidebar-open .sidebar{transform:translateX(0)}
  .content{padding:14px}
  .mobile-only{display:inline-flex!important}
  .hero-grid,.grid-2,.grid-3,.catalog-split{grid-template-columns:1fr}
  .grid-4{grid-template-columns:1fr 1fr}
  .product-grid-compact{grid-template-columns:repeat(2,minmax(0,1fr))}
  .topbar-title{font-size:24px}
  .topbar{padding:14px 16px}
  .right-sticky,.sticky-detail{position:static}
}
@media (max-width:760px){
  body{font-size:15px}
  .content{padding:10px}
  .topbar,.card,.mobile-step-card,.compact-card{border-radius:20px;padding:16px}
  .topbar{margin-bottom:12px}
  .topbar-title{font-size:18px}
  .topbar-sub{font-size:12px}
  .hero-panel{padding:20px;border-radius:24px}
  .hero-panel h1{font-size:26px}
  .hero-panel p{font-size:14px}
  .kpi strong{font-size:24px}
  .grid-4,.grid-3,.grid-2,.spec-grid-2,.mobile-spec-grid,.mobile-measure-grid,.compact-form-grid{grid-template-columns:1fr}
  .mini-actions,.action-stack,.two-actions,.form-row,.mobile-inline-actions,.calc-actions{flex-direction:column}
  .btn,.btn-block-mobile{width:100%}
  .login-shell{grid-template-columns:1fr;width:min(100vw,100%);min-height:100vh;border-radius:0;box-shadow:none}
  .login-visual{padding:28px 20px}
  .login-visual h1{font-size:30px}
  .login-visual p{font-size:15px}
  .hero-stats{display:grid;grid-template-columns:1fr;gap:10px}
  .login-panel{padding:18px}
  .login-card{padding:22px;border-radius:24px}
  .section-head h3,.detail-title,.mobile-detail-title,.page-title{font-size:22px}
  .detail-hero-img{aspect-ratio:16/9}
  .mobile-product-card{width:178px}
  .table-wrap{border-radius:14px}
  th,td{padding:10px;font-size:13px}
}