:root{
  --bg:#f6f8fa;
  --surface:#ffffff;
  --surface-2:#f0f4f7;
  --ink:#11161d;
  --muted:#697586;
  --muted-2:#98a3b1;
  --line:#dfe5eb;
  --accent:#4e7498;
  --accent-dark:#3d6387;
  --accent-soft:#eaf1f7;
  --ok:#159257;
  --ok-soft:#eaf7f0;
  --danger:#b84b4b;
  --shadow:0 18px 50px rgba(22,37,51,.08);
  --radius:18px;
  --radius-sm:12px;
  --max:1320px;
  --font:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:linear-gradient(180deg,#fbfcfd 0%,var(--bg) 100%);color:var(--ink);font-family:var(--font);-webkit-font-smoothing:antialiased}
button,input,textarea,select{font:inherit}
button{cursor:pointer}
a{color:inherit;text-decoration:none}
.app-shell{min-height:100vh}
.container{width:min(calc(100% - 40px),var(--max));margin-inline:auto}
.sr-header{height:78px;display:flex;align-items:center;border-bottom:1px solid var(--line);background:rgba(255,255,255,.9);backdrop-filter:blur(14px);position:sticky;top:0;z-index:40}
.sr-header .container{display:flex;align-items:center;gap:30px}
.brand{font-weight:650;letter-spacing:.28em;font-size:20px;white-space:nowrap}
.brand-line{height:1px;background:var(--line);flex:1}
.header-nav{display:flex;gap:24px;color:#475467;font-size:14px}
.header-actions{display:flex;align-items:center;gap:8px}
.icon-btn{border:1px solid transparent;background:transparent;border-radius:10px;width:40px;height:40px;display:grid;place-items:center;color:#273444;position:relative}
.icon-btn:hover{background:var(--surface-2)}
.badge-count{position:absolute;right:1px;top:0;background:var(--accent);color:white;border-radius:999px;font-size:10px;min-width:18px;height:18px;padding:0 5px;display:grid;place-items:center;border:2px solid white}
.page{padding:38px 0 70px}
.page-head{display:flex;align-items:flex-start;justify-content:space-between;gap:24px;margin-bottom:26px}
.eyebrow{font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--accent);font-weight:700;margin-bottom:10px}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(32px,4vw,52px);line-height:1.02;letter-spacing:-.035em;margin-bottom:10px}
h2{font-size:30px;line-height:1.1;letter-spacing:-.025em;margin-bottom:8px}
h3{font-size:18px;line-height:1.2}
.subtle{color:var(--muted);line-height:1.55}
.btn{border:0;border-radius:11px;min-height:48px;padding:0 18px;display:inline-flex;align-items:center;justify-content:center;gap:10px;font-weight:650;transition:.18s ease;background:var(--surface-2);color:#2a3643}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:linear-gradient(180deg,#587fa2 0%,#466c90 100%);color:white;box-shadow:0 8px 20px rgba(70,108,144,.2)}
.btn-primary:hover{background:linear-gradient(180deg,#4f7699 0%,#3f6486 100%)}
.btn-outline{background:white;border:1px solid var(--line)}
.btn-danger{background:#fff1f1;color:#9e3535}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}
.input{width:100%;height:48px;border:1px solid var(--line);background:white;border-radius:11px;padding:0 14px;color:var(--ink);outline:none;transition:border .15s,box-shadow .15s}
.input:focus{border-color:#8aa7c1;box-shadow:0 0 0 4px rgba(78,116,152,.09)}
.textarea{min-height:110px;padding-top:12px;resize:vertical}
.field-label{display:block;font-size:12px;color:var(--muted);margin:0 0 7px 2px}
.field{margin-bottom:14px}
.card{background:var(--surface);border:1px solid #e7ecf0;border-radius:var(--radius);box-shadow:0 8px 24px rgba(22,37,51,.035)}

/* Auth */
.auth-page{min-height:100vh;display:grid;grid-template-rows:auto 1fr auto}
.auth-top{height:78px;display:flex;align-items:center}
.auth-top .container{display:flex;align-items:center;gap:20px}
.auth-top .brand-line{display:block}
.auth-kicker{font-size:12px;letter-spacing:.25em;color:#617081;text-transform:uppercase;white-space:nowrap}
.auth-main{display:grid;place-items:center;padding:40px 0}
.auth-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(360px,.72fr);gap:44px;align-items:stretch}
.auth-visual{min-height:590px;border-radius:26px;overflow:hidden;position:relative;background:linear-gradient(135deg,#edf2f5,#d8e0e7);box-shadow:var(--shadow)}
.auth-visual::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 20% 10%,rgba(255,255,255,.9),transparent 42%),linear-gradient(120deg,rgba(255,255,255,.15),transparent 60%)}
.steel-stage{position:absolute;inset:0;display:flex;align-items:flex-end;justify-content:center;padding:58px}
.stage-block{position:absolute;background:linear-gradient(135deg,#515961,#222930);border-radius:3px;box-shadow:inset 0 1px rgba(255,255,255,.14),0 16px 32px rgba(21,29,36,.18)}
.stage-block.b1{width:54%;height:26%;right:7%;bottom:9%}
.stage-block.b2{width:45%;height:22%;right:16%;bottom:35%}
.stage-block.b3{width:35%;height:17%;right:3%;bottom:54%}
.metal-piece{position:absolute;background:linear-gradient(145deg,#f3f5f6 0%,#bcc3c8 40%,#f8f9fa 60%,#aeb6bc 100%);border:1px solid #8c959d;box-shadow:0 12px 24px rgba(0,0,0,.18);transform:rotate(-5deg)}
.metal-piece.tag{width:135px;height:76px;border-radius:14px;right:24%;bottom:43%}
.metal-piece.tag::after{content:"";position:absolute;width:9px;height:9px;border:2px solid #6b747c;background:#31383e;border-radius:50%;top:8px;left:11px}
.metal-piece.rect{width:122px;height:64px;border-radius:10px;right:7%;bottom:20%;transform:rotate(8deg)}
.metal-piece.round{width:82px;height:82px;border-radius:50%;right:17%;bottom:63%;transform:rotate(12deg)}
.metal-piece.round::after{content:"";position:absolute;width:8px;height:8px;border:2px solid #687179;background:#30363c;border-radius:50%;top:6px;left:34px}
.visual-copy{position:absolute;left:48px;top:54px;z-index:2;max-width:330px}
.visual-copy .mini{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:#526274;margin-bottom:18px}
.visual-copy h2{font-size:40px;max-width:280px;margin-bottom:18px}
.visual-copy p{color:#5c6876;line-height:1.65}
.auth-card{align-self:center;padding:38px;border-radius:24px;background:rgba(255,255,255,.94);border:1px solid #e3e9ee;box-shadow:var(--shadow)}
.auth-card .brand{font-size:26px;margin-bottom:28px;display:block}
.auth-card h1{font-size:34px;margin-bottom:12px}
.auth-card .subtle{margin-bottom:28px}
.auth-instruction{margin:0 0 20px;padding:14px 16px;border-radius:12px;background:#f2f5f7;color:#354455;font-size:14px;line-height:1.5}
.auth-feedback{min-height:20px;margin:10px 0 0;color:#9e3535;font-size:13px;line-height:1.45}
.auth-feedback:empty{min-height:0;margin:0}
.auth-actions{display:grid;gap:12px}
.auth-note{display:flex;gap:10px;align-items:flex-start;margin-top:18px;padding-top:18px;border-top:1px solid var(--line);color:var(--muted);font-size:13px;line-height:1.45}
.code-row{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:20px 0}
.code-cell{height:58px;text-align:center;font-size:24px;font-weight:700;letter-spacing:.05em}
.auth-footer{padding:18px 0 26px;color:#7b8794;font-size:12px}
.auth-footer .container{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}

/* Catalog */
.catalog-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:24px;align-items:start}
.catalog-tools{display:flex;gap:12px;align-items:center;margin-bottom:14px}
.search{position:relative;flex:1}
.search .input{padding-left:42px}
.search svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:#778494}
.availability-chip{display:inline-flex;gap:7px;align-items:center;border:1px solid #d8e9df;background:#f3faf6;border-radius:999px;padding:8px 11px;color:#2c6d4c;font-size:12px;font-weight:650;white-space:nowrap}
.dot{width:8px;height:8px;border-radius:50%;background:var(--ok)}
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0 18px}
.tab{border:1px solid transparent;background:#edf1f4;border-radius:9px;padding:8px 14px;color:#566270;font-size:13px}
.tab.active{background:#4d7295;color:white}
.product-table{overflow:hidden}
.product-head,.product-row{display:grid;grid-template-columns:minmax(0,1fr) 76px 90px 122px 75px 24px;gap:8px;align-items:center;padding:13px 12px}
.product-head{font-size:11px;color:#788493;text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid var(--line);background:#fafbfc}
.product-row{border-bottom:1px solid #ebeff2;min-height:92px}
.product-row:last-child{border-bottom:0}
.product-info{display:grid;grid-template-columns:62px minmax(0,1fr);gap:12px;align-items:center;min-width:0}
.product-info>div{min-width:0}
.product-thumb{width:62px;height:62px;border-radius:10px;background:#edf1f4;object-fit:contain;border:1px solid #e1e6ea}
.product-name{font-weight:700;font-size:14px;line-height:1.35;margin-bottom:5px;overflow-wrap:anywhere}
.product-meta{font-size:11px;color:var(--muted);line-height:1.45}
.price{font-weight:750}
.stock{font-size:12px;color:#3d4a58}
.stock strong{display:flex;align-items:center;gap:6px;font-weight:650;color:#245f42;margin-bottom:3px}
.qty{display:grid;grid-template-columns:34px 54px 34px;border:1px solid var(--line);border-radius:9px;overflow:hidden;height:38px;background:white}
.qty button{border:0;background:white;color:#53606f;font-size:18px}
.qty button:hover{background:#f1f4f6}
.qty input{width:100%;border:0;border-inline:1px solid var(--line);text-align:center;outline:0;font-weight:650}
.row-total{font-weight:700;font-size:13px}
.cart-panel{position:sticky;top:102px;padding:20px}
.cart-panel h3{margin-bottom:4px}
.cart-small{font-size:12px;color:var(--muted)}
.cart-summary{margin:18px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:14px 0;display:grid;gap:10px}
.sum-row{display:flex;justify-content:space-between;gap:12px;color:#556170;font-size:13px}
.sum-row.total{font-size:18px;color:var(--ink);font-weight:800;margin-top:5px}
.cart-panel .btn{width:100%;margin-top:10px}
.trust-list{display:grid;gap:14px;margin-top:20px;padding-top:18px;border-top:1px solid var(--line)}
.trust-item{display:grid;grid-template-columns:36px 1fr;gap:10px;align-items:center}
.trust-icon{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:var(--accent-soft);color:#254967}
.trust-item strong{display:block;font-size:12px;margin-bottom:2px}
.trust-item span{font-size:11px;color:var(--muted)}
.empty{padding:50px 24px;text-align:center;color:var(--muted)}

/* Checkout */
.stepper{display:flex;align-items:center;gap:12px;color:#8a95a1;font-size:12px;margin-bottom:30px;overflow:auto}
.step{display:flex;align-items:center;gap:8px;white-space:nowrap}
.step .n{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:#eef2f5;color:#6b7682;font-weight:700}
.step.active{color:var(--ink);font-weight:700}.step.active .n{background:#52799d;color:white}
.step.done .n{background:#eaf5ef;color:#22704c}
.step-line{width:50px;height:1px;background:var(--line)}
.checkout-grid{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:28px;align-items:start}
.checkout-card{padding:22px}
.cart-items{display:grid}
.cart-item{display:grid;grid-template-columns:72px 1fr 100px 130px 100px 30px;gap:14px;align-items:center;padding:16px 0;border-bottom:1px solid var(--line)}
.cart-item:last-child{border-bottom:0}
.cart-item .product-thumb{width:72px;height:72px}
.cart-item-title{font-weight:700;font-size:14px}
.checkout-side{padding:22px;position:sticky;top:102px}
.checkout-side .btn{width:100%;margin-top:14px}
.order-stats{display:grid;gap:9px;background:#f5f7f9;border-radius:12px;padding:14px;margin:14px 0 18px}
.order-stats .sum-row.total{padding-top:8px;border-top:1px solid var(--line)}

/* Delivery */
.provider-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:18px 0}
.provider{border:1px solid var(--line);border-radius:14px;padding:16px;background:white;position:relative;min-height:112px}
.provider.active{border-color:#6f99be;box-shadow:0 0 0 3px rgba(78,116,152,.08)}
.provider input{position:absolute;right:14px;top:14px}
.provider-logo{font-size:22px;font-weight:850;letter-spacing:-.03em;margin-bottom:8px}
.provider[data-provider="cdek"] .provider-logo{color:#159257}.provider[data-provider="yandex"] .provider-logo{color:#d94c31}.provider[data-provider="ozon"] .provider-logo{color:#1769e0}
.provider small{color:var(--muted);line-height:1.4}
.delivery-workspace{display:grid;grid-template-columns:.9fr 1.1fr;gap:16px;margin-top:16px}
.map-card{min-height:410px;border-radius:14px;border:1px solid var(--line);background:linear-gradient(135deg,#eef4f1,#e6eef3);position:relative;overflow:hidden}
.map-card::before,.map-card::after{content:"";position:absolute;inset:-30%;background:repeating-linear-gradient(35deg,transparent 0 34px,rgba(255,255,255,.85) 35px 41px);transform:rotate(4deg)}
.map-card::after{background:repeating-linear-gradient(120deg,transparent 0 48px,rgba(199,216,226,.7) 49px 55px);transform:rotate(-8deg)}
.map-label{position:absolute;z-index:2;left:16px;right:16px;top:16px;background:white;border:1px solid var(--line);border-radius:11px;padding:12px 14px;color:#52606e;font-size:13px;box-shadow:0 8px 20px rgba(0,0,0,.06)}
.pin{position:absolute;z-index:3;width:23px;height:23px;border-radius:50% 50% 50% 0;background:#567fa5;transform:rotate(-45deg);box-shadow:0 4px 12px rgba(42,78,107,.22)}
.pin::after{content:"";position:absolute;width:7px;height:7px;background:white;border-radius:50%;left:8px;top:8px}.pin.p1{left:46%;top:48%}.pin.p2{left:68%;top:61%}.pin.p3{left:31%;top:70%}
.points{display:grid;gap:10px}
.point{border:1px solid var(--line);border-radius:12px;padding:14px;background:white;display:grid;grid-template-columns:26px 1fr auto;gap:10px;align-items:start}
.point.active{border-color:#6f99be;box-shadow:0 0 0 3px rgba(78,116,152,.07)}
.radio{width:18px;height:18px;border-radius:50%;border:2px solid #b7c0ca;margin-top:2px;position:relative}.point.active .radio{border-color:#5d87ab}.point.active .radio::after{content:"";position:absolute;width:8px;height:8px;background:#5d87ab;border-radius:50%;left:3px;top:3px}
.point strong{font-size:13px;display:block;margin-bottom:4px}.point small{display:block;color:var(--muted);font-size:11px;line-height:1.45}.point-price{text-align:right;font-weight:800;font-size:14px}.days{display:block;background:#eaf7f0;color:#2a7552;border-radius:999px;padding:5px 8px;font-size:10px;font-weight:700;margin-bottom:8px}

/* Payment */
.payment-methods{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:18px 0}
.pay-method{border:1px solid var(--line);border-radius:12px;padding:15px;min-height:104px;background:white;position:relative}.pay-method.active{border-color:#6f99be;box-shadow:0 0 0 3px rgba(78,116,152,.07)}.pay-method input{position:absolute;right:12px;top:12px}.pay-method strong{display:block;margin:14px 0 4px;font-size:13px}.pay-method small{color:var(--muted);font-size:11px;line-height:1.35}
.success{display:grid;place-items:center;text-align:center;padding:50px 20px;min-height:500px}.success-mark{width:96px;height:96px;border-radius:50%;background:#e7f6ed;display:grid;place-items:center;color:#12844e;margin-bottom:20px}.success h1{font-size:42px}.success-box{width:min(100%,520px);margin:24px auto;background:#f7f9fa;border:1px solid var(--line);border-radius:14px;padding:18px;text-align:left}.success-box .sum-row{padding:9px 0;border-bottom:1px solid var(--line)}.success-box .sum-row:last-child{border-bottom:0}

.skeleton{height:90px;background:linear-gradient(90deg,#f1f3f5 25%,#e8ecef 40%,#f1f3f5 60%);background-size:300% 100%;animation:shimmer 1.3s infinite;border-radius:10px;margin:12px}
@keyframes shimmer{0%{background-position:100% 0}100%{background-position:0 0}}
.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,20px);background:#1c2834;color:white;padding:12px 16px;border-radius:10px;box-shadow:0 12px 35px rgba(0,0,0,.22);opacity:0;pointer-events:none;transition:.2s;z-index:100;font-size:13px;max-width:min(92vw,520px)}.toast.show{opacity:1;transform:translate(-50%,0)}
.dev-chip{display:inline-flex;align-items:center;gap:6px;background:#fff7df;color:#7b5a08;border:1px solid #f1dfa2;border-radius:999px;padding:6px 9px;font-size:11px;font-weight:700}

@media(max-width:1100px){
  .catalog-layout,.checkout-grid{grid-template-columns:1fr}.cart-panel,.checkout-side{position:static}
  .product-head,.product-row{grid-template-columns:minmax(0,1fr) 76px 90px 122px 75px 24px}
  .auth-grid{grid-template-columns:1fr}.auth-visual{min-height:390px}.auth-card{max-width:620px;width:100%;justify-self:center}
}
@media(max-width:800px){
  .container{width:min(calc(100% - 24px),var(--max))}
  .sr-header{height:66px}.sr-header .container{gap:12px}.brand{font-size:17px;letter-spacing:.22em}.brand-line,.header-nav{display:none}.header-actions{margin-left:auto}
  .page{padding-top:24px}.page-head{display:block}.availability-chip{margin-top:8px}
  h1{font-size:36px}
  .auth-top{height:66px}.auth-kicker{display:none}.auth-main{padding:18px 0}.auth-grid{gap:18px}.auth-visual{display:none}.auth-card{padding:26px}.auth-card h1{font-size:30px}
  .catalog-tools{display:grid;grid-template-columns:1fr}.product-head{display:none}.product-row{grid-template-columns:1fr 1fr;gap:10px;padding:16px}.product-info{grid-column:1/-1}.stock{grid-column:1/2}.qty{grid-column:2/3;justify-self:end}.price{grid-column:1/2}.row-total{grid-column:1/2}.remove{grid-column:2/3;justify-self:end}.product-row{position:relative}
  .cart-item{grid-template-columns:64px 1fr auto}.cart-item .product-thumb{width:64px;height:64px}.cart-item>.price,.cart-item>.qty,.cart-item>.row-total{grid-column:2/3}.cart-item>.remove{grid-column:3/4;grid-row:1/2}
  .provider-grid,.payment-methods{grid-template-columns:1fr}.delivery-workspace{grid-template-columns:1fr}.map-card{min-height:300px}
  .step-line{width:18px}.stepper{gap:7px}
}
@media(max-width:520px){
  .page{padding-bottom:42px}.auth-card{padding:22px;border-radius:18px}.auth-card .brand{font-size:21px}.auth-card h1{font-size:28px}.code-cell{height:54px}
  .product-row{grid-template-columns:1fr}.stock,.qty,.row-total,.remove,.price{grid-column:1}.qty{justify-self:start}.remove{justify-self:end;margin-top:-42px}.cart-panel{padding:17px}
  .checkout-card,.checkout-side{padding:17px}.cart-item{grid-template-columns:56px 1fr auto}.cart-item .product-thumb{width:56px;height:56px}.cart-item>.qty{grid-column:2/3}.cart-item>.row-total{grid-column:2/3}
}