/* ВелоЮг — демо интернет-магазина велосипедов */
:root{
  --bg:#ffffff;
  --bg-soft:#f5f5f3;
  --ink:#0a0a0a;
  --ink-soft:#5b5b5b;
  --line:#e4e3e0;
  --accent:#e2231a;
  --accent-dark:#b8180f;
  --ok:#1a8a4a;
  --warn:#b8860b;
  --radius:2px;
  --maxw:1280px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'Inter',-apple-system,'Segoe UI',Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
  font-size:15px;
  line-height:1.5;
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
ul{list-style:none;margin:0;padding:0;}
button{font-family:inherit;cursor:pointer;}
input,select{font-family:inherit;font-size:14px;}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);}

/* ---------- topbar ---------- */
.topbar{background:var(--ink);color:#fff;font-size:12.5px;}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;height:34px;}
.topbar-left{display:flex;gap:20px;color:#c9c9c9;}
.topbar-left span{color:#fff;}
.topbar a{color:#c9c9c9;}
.topbar a:hover{color:#fff;}

/* ---------- header ---------- */
.site-header{border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:50;}
.header-row{display:flex;align-items:center;gap:28px;height:76px;}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:22px;letter-spacing:-.02em;white-space:nowrap;}
.logo .dot{color:var(--accent);}
.logo small{display:block;font-weight:500;font-size:10.5px;letter-spacing:.06em;color:var(--ink-soft);text-transform:uppercase;}
.main-nav{display:flex;gap:22px;flex:1;}
.main-nav a{font-weight:600;font-size:14px;padding:8px 0;border-bottom:2px solid transparent;}
.main-nav a:hover,.main-nav a.active{border-color:var(--accent);color:var(--accent);}
.header-search{flex:1;max-width:380px;position:relative;}
.header-search input{width:100%;padding:10px 40px 10px 14px;border:1.5px solid var(--line);border-radius:var(--radius);font-size:14px;}
.header-search input:focus{outline:none;border-color:var(--ink);}
.header-search button{position:absolute;right:6px;top:50%;transform:translateY(-50%);background:none;border:none;padding:6px;}
.header-actions{display:flex;align-items:center;gap:6px;}
.icon-btn{position:relative;display:flex;flex-direction:column;align-items:center;gap:2px;padding:8px 10px;border:none;background:none;font-size:10.5px;color:var(--ink);border-radius:var(--radius);}
.icon-btn:hover{background:var(--bg-soft);}
.icon-btn .badge{position:absolute;top:2px;right:2px;background:var(--accent);color:#fff;font-size:10px;font-weight:700;min-width:16px;height:16px;border-radius:50%;display:flex;align-items:center;justify-content:center;padding:0 3px;}
.burger{display:none;}

/* categories strip */
.cat-strip{border-bottom:1px solid var(--line);background:var(--bg-soft);}
.cat-strip .wrap{display:flex;gap:0;overflow-x:auto;}
.cat-strip a{padding:11px 16px;font-size:13.5px;font-weight:600;white-space:nowrap;border-bottom:2px solid transparent;}
.cat-strip a:hover,.cat-strip a.active{color:var(--accent);border-color:var(--accent);}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:var(--radius);font-weight:700;font-size:14px;border:1.5px solid transparent;transition:.15s;}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:var(--accent-dark);}
.btn-outline{background:#fff;border-color:var(--ink);color:var(--ink);}
.btn-outline:hover{background:var(--ink);color:#fff;}
.btn-ghost{background:var(--bg-soft);color:var(--ink);}
.btn-ghost:hover{background:var(--line);}
.btn-sm{padding:8px 14px;font-size:13px;}
.btn-block{width:100%;}
.btn:disabled{opacity:.5;cursor:not-allowed;}

/* ---------- hero ---------- */
.hero{position:relative;background:var(--ink);color:#fff;overflow:hidden;min-height:440px;display:flex;align-items:center;}
.hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.55;}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.85) 10%,rgba(0,0,0,.25) 70%);}
.hero-content{position:relative;z-index:2;max-width:560px;}
.hero-tag{display:inline-block;background:var(--accent);padding:5px 12px;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;margin-bottom:16px;border-radius:var(--radius);}
.hero h1{font-size:44px;line-height:1.08;margin:0 0 16px;font-weight:800;letter-spacing:-.02em;}
.hero p{font-size:16.5px;color:#e6e6e6;margin:0 0 26px;max-width:460px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- sections ---------- */
section{padding:56px 0;}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:28px;gap:20px;}
.section-head h2{font-size:28px;margin:0 0 6px;font-weight:800;letter-spacing:-.01em;}
.section-head p{margin:0;color:var(--ink-soft);font-size:14.5px;}
.section-head .link{font-weight:700;font-size:14px;white-space:nowrap;border-bottom:2px solid var(--accent);padding-bottom:2px;}
.bg-soft{background:var(--bg-soft);}

/* category tiles */
.cat-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;}
.cat-tile{position:relative;border-radius:var(--radius);overflow:hidden;aspect-ratio:1/1.05;background:var(--ink);}
.cat-tile img{width:100%;height:100%;object-fit:cover;opacity:.75;transition:.25s;}
.cat-tile:hover img{opacity:.9;transform:scale(1.04);}
.cat-tile span{position:absolute;left:12px;bottom:12px;right:12px;color:#fff;font-weight:700;font-size:14.5px;}
.cat-tile .count{position:absolute;left:12px;top:12px;background:rgba(255,255,255,.92);color:var(--ink);font-size:11px;font-weight:700;padding:3px 8px;border-radius:20px;}

/* advantages */
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.adv-card{border:1px solid var(--line);border-radius:var(--radius);padding:22px;}
.adv-card .ic{font-size:26px;margin-bottom:12px;}
.adv-card h3{font-size:15.5px;margin:0 0 8px;}
.adv-card p{margin:0;color:var(--ink-soft);font-size:13.5px;}

/* ---------- product grid & cards ---------- */
.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.product-card{border:1px solid var(--line);border-radius:var(--radius);background:#fff;display:flex;flex-direction:column;position:relative;transition:.15s;}
.product-card:hover{border-color:#c9c9c6;box-shadow:0 6px 18px rgba(0,0,0,.06);}
.product-card .thumb{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--bg-soft);}
.product-card .thumb img{width:100%;height:100%;object-fit:cover;}
.badges{position:absolute;top:8px;left:8px;display:flex;flex-direction:column;gap:5px;}
.badge-tag{font-size:10.5px;font-weight:800;text-transform:uppercase;padding:3px 7px;border-radius:2px;color:#fff;letter-spacing:.02em;}
.badge-hit{background:var(--accent);}
.badge-new{background:#1a1a1a;}
.badge-sale{background:var(--ok);}
.fav-toggle{position:absolute;top:8px;right:8px;width:32px;height:32px;border-radius:50%;background:#fff;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:15px;}
.fav-toggle.active{color:var(--accent);border-color:var(--accent);}
.stock-flag{position:absolute;bottom:8px;left:8px;font-size:11px;font-weight:700;padding:3px 8px;border-radius:2px;background:rgba(255,255,255,.95);}
.stock-flag.out{color:var(--ink-soft);}
.stock-flag.in{color:var(--ok);}
.product-card .body{padding:14px;display:flex;flex-direction:column;gap:6px;flex:1;}
.product-card .brand{font-size:11.5px;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-soft);font-weight:700;}
.product-card .name{font-size:14.5px;font-weight:700;line-height:1.3;min-height:38px;}
.product-card .specs-line{font-size:12px;color:var(--ink-soft);}
.product-card .price-row{margin-top:auto;display:flex;align-items:baseline;gap:8px;padding-top:8px;}
.price{font-size:18px;font-weight:800;}
.price-old{font-size:13px;color:#a5a5a2;text-decoration:line-through;}
.card-actions{display:flex;gap:8px;padding:0 14px 14px;}
.cmp-toggle{width:38px;flex:none;}
.cmp-toggle.active{background:var(--ink);color:#fff;}

/* ---------- catalog layout ---------- */
.catalog-layout{display:grid;grid-template-columns:260px 1fr;gap:32px;align-items:flex-start;}
.filters{border:1px solid var(--line);border-radius:var(--radius);padding:20px;position:sticky;top:92px;}
.filters h3{font-size:12px;text-transform:uppercase;letter-spacing:.05em;margin:0 0 8px;color:var(--ink-soft);}
.filter-group{padding:16px 0;border-bottom:1px solid var(--line);}
.filter-group:last-child{border-bottom:none;}
.filter-group .fg-title{font-weight:700;font-size:13.5px;margin-bottom:10px;display:flex;justify-content:space-between;}
.chip-row{display:flex;flex-wrap:wrap;gap:6px;}
.chip{border:1.5px solid var(--line);padding:5px 11px;border-radius:20px;font-size:12.5px;font-weight:600;}
.chip.active{background:var(--ink);border-color:var(--ink);color:#fff;}
.check-row label{display:flex;align-items:center;gap:8px;font-size:13.5px;padding:4px 0;cursor:pointer;}
.range-row{display:flex;gap:8px;align-items:center;}
.range-row input{width:100%;border:1.5px solid var(--line);border-radius:var(--radius);padding:7px 8px;font-size:13px;}
.quickpick{display:grid;gap:8px;margin-bottom:18px;}
.quickpick button{text-align:left;border:1.5px solid var(--line);border-radius:var(--radius);padding:10px 12px;font-size:13px;font-weight:600;background:#fff;}
.quickpick button:hover{border-color:var(--accent);color:var(--accent);}

.catalog-toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;flex-wrap:wrap;gap:10px;}
.result-count{font-size:14px;color:var(--ink-soft);}
.result-count b{color:var(--ink);}
.sort-row{display:flex;align-items:center;gap:8px;font-size:13.5px;}
.sort-row select{border:1.5px solid var(--line);padding:8px 10px;border-radius:var(--radius);}
.active-filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px;}
.active-filters .tag{display:flex;align-items:center;gap:6px;background:var(--bg-soft);padding:5px 10px;border-radius:20px;font-size:12.5px;font-weight:600;}
.active-filters .tag button{background:none;border:none;font-weight:800;padding:0;}
.empty-state{padding:60px 0;text-align:center;color:var(--ink-soft);}
.load-more{display:flex;justify-content:center;margin-top:28px;}

/* ---------- product page ---------- */
.breadcrumbs{font-size:13px;color:var(--ink-soft);padding:16px 0;}
.breadcrumbs a:hover{color:var(--accent);}
.pd-layout{display:grid;grid-template-columns:1fr 420px;gap:44px;}
.pd-gallery .main-img{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;aspect-ratio:4/3;background:var(--bg-soft);}
.pd-gallery .main-img img{width:100%;height:100%;object-fit:cover;}
.pd-thumbs{display:flex;gap:8px;margin-top:10px;}
.pd-thumbs div{width:64px;height:64px;border:1.5px solid var(--line);border-radius:var(--radius);overflow:hidden;cursor:pointer;background:var(--bg-soft);}
.pd-thumbs div.active{border-color:var(--ink);}
.pd-info .brand{color:var(--ink-soft);font-weight:700;text-transform:uppercase;font-size:12.5px;letter-spacing:.04em;}
.pd-info h1{font-size:26px;margin:6px 0 10px;font-weight:800;}
.pd-meta{display:flex;gap:14px;font-size:13px;color:var(--ink-soft);margin-bottom:16px;}
.pd-price-block{border:1px solid var(--line);border-radius:var(--radius);padding:20px;margin-bottom:20px;}
.pd-price-row{display:flex;align-items:baseline;gap:12px;margin-bottom:4px;}
.pd-price-row .price{font-size:30px;}
.pd-stock{font-size:13.5px;font-weight:700;margin-bottom:16px;}
.pd-stock.in{color:var(--ok);}
.pd-stock.out{color:var(--ink-soft);}
.size-row{margin-bottom:16px;}
.size-row .fg-title{font-weight:700;font-size:13px;margin-bottom:8px;}
.qty-row{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.qty-row .stepper{display:flex;border:1.5px solid var(--line);border-radius:var(--radius);}
.qty-row .stepper button{width:34px;height:38px;background:none;border:none;font-size:16px;font-weight:700;}
.qty-row .stepper input{width:44px;border:none;text-align:center;font-weight:700;}
.pd-actions{display:flex;gap:10px;}
.pd-actions .btn-icon{width:48px;flex:none;padding:0;}
.pd-actions .btn-icon.active{background:var(--accent);color:#fff;border-color:var(--accent);}
.pd-note{font-size:12.5px;color:var(--ink-soft);margin-top:14px;display:flex;gap:8px;align-items:flex-start;}

.specs-table{width:100%;border-collapse:collapse;margin-top:8px;}
.specs-table tr{border-bottom:1px solid var(--line);}
.specs-table td{padding:11px 4px;font-size:14px;}
.specs-table td:first-child{color:var(--ink-soft);width:45%;}
.specs-table td:last-child{font-weight:700;text-align:right;}

.tabs{display:flex;gap:24px;border-bottom:1.5px solid var(--line);margin:44px 0 24px;}
.tabs button{background:none;border:none;padding:12px 0;font-weight:700;font-size:15px;color:var(--ink-soft);border-bottom:2px solid transparent;margin-bottom:-1.5px;}
.tabs button.active{color:var(--ink);border-color:var(--accent);}
.tab-panel{display:none;}
.tab-panel.active{display:block;}
.tab-panel p{max-width:760px;color:var(--ink-soft);}

/* ---------- cart / favorites / compare ---------- */
.cart-layout{display:grid;grid-template-columns:1fr 340px;gap:32px;align-items:flex-start;}
.cart-item{display:grid;grid-template-columns:90px 1fr auto auto;gap:16px;align-items:center;padding:16px 0;border-bottom:1px solid var(--line);}
.cart-item img{width:90px;height:70px;object-fit:cover;border-radius:var(--radius);background:var(--bg-soft);}
.cart-item .ci-name{font-weight:700;font-size:14.5px;}
.cart-item .ci-brand{font-size:12px;color:var(--ink-soft);margin-bottom:4px;}
.cart-item .ci-remove{font-size:12.5px;color:var(--accent);font-weight:700;margin-top:6px;}
.summary-card{border:1px solid var(--line);border-radius:var(--radius);padding:22px;position:sticky;top:92px;}
.summary-row{display:flex;justify-content:space-between;font-size:14px;padding:8px 0;color:var(--ink-soft);}
.summary-row.total{border-top:1px solid var(--line);margin-top:8px;padding-top:14px;font-size:17px;font-weight:800;color:var(--ink);}
.empty-box{text-align:center;padding:70px 20px;border:1.5px dashed var(--line);border-radius:var(--radius);}
.empty-box .ic{font-size:38px;margin-bottom:14px;}
.compare-table{width:100%;border-collapse:collapse;}
.compare-table th,.compare-table td{border:1px solid var(--line);padding:12px;text-align:left;font-size:13.5px;vertical-align:top;}
.compare-table th{background:var(--bg-soft);min-width:180px;}
.compare-table .cmp-remove{color:var(--accent);font-weight:700;font-size:12px;}

/* ---------- about / contacts ---------- */
.about-hero{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center;}
.about-hero img{border-radius:var(--radius);aspect-ratio:4/3;object-fit:cover;}
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center;padding:36px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.stat-row b{display:block;font-size:30px;font-weight:800;color:var(--accent);}
.stat-row span{font-size:13px;color:var(--ink-soft);}
.contacts-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;}
.contact-block{margin-bottom:22px;}
.contact-block h3{font-size:12px;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-soft);margin:0 0 6px;}
.contact-block p{margin:0;font-size:16px;font-weight:600;}
.map-box{border:1px solid var(--line);border-radius:var(--radius);aspect-ratio:4/3;background:var(--bg-soft) linear-gradient(135deg,#eceae6 25%,transparent 25%,transparent 50%,#eceae6 50%,#eceae6 75%,transparent 75%,transparent);background-size:24px 24px;display:flex;align-items:center;justify-content:center;color:var(--ink-soft);font-size:13.5px;text-align:center;padding:20px;}
.form-row{margin-bottom:14px;}
.form-row label{display:block;font-size:13px;font-weight:700;margin-bottom:6px;}
.form-row input,.form-row textarea{width:100%;border:1.5px solid var(--line);border-radius:var(--radius);padding:11px 12px;font-size:14px;}

/* ---------- toast ---------- */
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(20px);background:var(--ink);color:#fff;padding:14px 22px;border-radius:var(--radius);font-size:14px;font-weight:600;opacity:0;pointer-events:none;transition:.25s;z-index:200;display:flex;align-items:center;gap:10px;}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0);}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#c9c9c9;margin-top:60px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding:52px 0 28px;}
.footer-grid h4{color:#fff;font-size:13px;text-transform:uppercase;letter-spacing:.05em;margin:0 0 16px;}
.footer-grid ul li{margin-bottom:9px;font-size:13.5px;}
.footer-grid ul a:hover{color:#fff;}
.footer-logo{color:#fff;font-weight:800;font-size:20px;margin-bottom:12px;}
.footer-grid p{font-size:13px;line-height:1.6;color:#9b9b9b;}
.footer-bottom{border-top:1px solid #262626;padding:18px 0;display:flex;justify-content:space-between;font-size:12px;color:#8a8a8a;flex-wrap:wrap;gap:10px;}
.footer-bottom a{color:#8a8a8a;}
.footer-bottom a:hover{color:#fff;}
.demo-flag{background:var(--accent);color:#fff;text-align:center;font-size:12.5px;font-weight:700;padding:9px 12px;}
.demo-flag a{text-decoration:underline;}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .product-grid{grid-template-columns:repeat(3,1fr);}
  .cat-grid{grid-template-columns:repeat(3,1fr);}
  .pd-layout{grid-template-columns:1fr;}
  .catalog-layout{grid-template-columns:1fr;}
  .filters{position:static;}
  .adv-grid{grid-template-columns:repeat(2,1fr);}
  .cart-layout{grid-template-columns:1fr;}
  .contacts-grid{grid-template-columns:1fr;}
  .about-hero{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:720px){
  .main-nav,.header-search{display:none;}
  .hero h1{font-size:30px;}
  .hero{min-height:360px;}
  .product-grid{grid-template-columns:repeat(2,1fr);}
  .cat-grid{grid-template-columns:repeat(2,1fr);}
  .adv-grid{grid-template-columns:1fr;}
  .stat-row{grid-template-columns:repeat(2,1fr);gap:20px 12px;}
  .footer-grid{grid-template-columns:1fr;padding:36px 0 20px;}
  .topbar-left{display:none;}
}