/* XYZ Tires — one small stylesheet, system fonts, no framework. */
:root{--ink:#14213d;--muted:#5b6475;--line:#dfe3ea;--bg:#fff;--soft:#f4f6f9;--brand:#0b2545;--brand2:#13315c;--accent:#f2b705;--ok:#137a43;--warn:#9a6700;--bad:#b42318;--r:10px}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%}
body{margin:0;font:16px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;color:var(--ink);background:var(--bg)}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand2)}a:hover{color:var(--brand)}
h1{font-size:clamp(1.6rem,3.2vw,2.3rem);line-height:1.2;margin:.2em 0 .4em}
h2{font-size:clamp(1.25rem,2.2vw,1.55rem);line-height:1.25;margin:1.6em 0 .6em}
h3{font-size:1.05rem;margin:.4em 0}
.wrap{max-width:1200px;margin:0 auto;padding:0 16px}
.narrow{max-width:820px}
.sr{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:0;background:var(--accent);padding:8px 12px;z-index:9}.skip:focus{left:8px}
.sub{color:var(--muted);font-size:.9em}
.hide-sm{display:none}
button,.btn{display:inline-block;background:var(--brand);color:#fff;border:0;border-radius:8px;padding:10px 16px;font:inherit;font-weight:600;cursor:pointer;text-decoration:none}
button:hover,.btn:hover{background:var(--brand2);color:#fff}
input,select,textarea{font:inherit;padding:9px 10px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink);width:100%}
label{display:block;font-weight:600;font-size:.92rem;margin:.6em 0 .25em}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}

/* header */
.topbar{background:var(--brand);color:#dbe4f3;font-size:.85rem}
.topbar .wrap{display:flex;gap:16px;align-items:center;justify-content:flex-end;padding-top:6px;padding-bottom:6px;flex-wrap:wrap}
.topbar span:first-child{margin-right:auto}
.topbar a{color:#fff;text-decoration:none}.topbar .lang{border:1px solid #4a6390;border-radius:6px;padding:1px 8px}
header.site{border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:5}
.head{display:flex;align-items:center;gap:12px;padding-top:10px;padding-bottom:10px;flex-wrap:wrap}
.logo img{width:132px;height:auto}
.search{display:flex;flex:1 1 100%;order:3;gap:6px}
.search input{flex:1}
.cart-link{margin-left:auto;font-weight:600;text-decoration:none;white-space:nowrap}
.cart-count{display:inline-block;min-width:22px;padding:0 6px;border-radius:11px;background:var(--accent);color:var(--ink);text-align:center;font-size:.85rem}
.menu-btn{padding:8px 12px}
.main-nav{display:none;border-top:1px solid var(--line)}
.main-nav.open{display:block}
.main-nav .wrap{display:flex;flex-direction:column}
.main-nav a{padding:10px 0;text-decoration:none;font-weight:600;color:var(--ink);border-bottom:1px solid var(--soft)}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;padding:10px 0 0;margin:0;font-size:.85rem;color:var(--muted)}
.crumbs li+li:before{content:"›";margin-right:6px}
.crumbs a{color:var(--muted)}

/* hero + finder */
.hero{background:linear-gradient(135deg,var(--brand),#1d4e89);color:#fff;padding:28px 0 32px;margin-bottom:8px}
.hero h1{color:#fff}.hero .lead{font-size:1.1rem;color:#dbe4f3;max-width:38em}
.hero-grid{display:grid;gap:24px}
.ticks{padding:0;list-style:none;margin:12px 0}.ticks li{padding-left:26px;position:relative;margin:4px 0}
.ticks li:before{content:"✓";position:absolute;left:0;color:var(--accent);font-weight:700}
.ticks.small{font-size:.9rem}.ticks.small li:before{color:var(--ok)}
.finder{background:#fff;color:var(--ink);border-radius:var(--r);padding:16px;box-shadow:0 8px 30px rgba(11,37,69,.18);border:1px solid var(--line)}
.finder .tabs{display:flex;gap:6px;margin-bottom:8px}
.finder .tabs button{background:var(--soft);color:var(--ink);flex:1}
.finder .tabs button[aria-selected=true]{background:var(--brand);color:#fff}
.fpanel{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;align-items:end}
.fpanel label{margin:0}.fpanel button{grid-column:1/-1}
.fpanel .hint{grid-column:1/-1;margin:4px 0 0;font-size:.85rem;color:var(--muted)}
.fpanel[hidden]{display:none}

/* layout pieces */
.page-head{padding:8px 0 4px}
.answer{font-size:1.08rem;max-width:60em}
.eyebrow{text-transform:uppercase;letter-spacing:.04em;font-size:.8rem;color:var(--muted);margin:0}
.eyebrow a{color:inherit}
.jump{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}
.jump a{background:var(--soft);border-radius:20px;padding:5px 12px;text-decoration:none;font-size:.9rem}
.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.card{border:1px solid var(--line);border-radius:var(--r);padding:12px;display:flex;flex-direction:column;gap:4px;background:#fff}
.card a{text-decoration:none;color:inherit}.card a:hover h3{text-decoration:underline}
.card img,.noimg{aspect-ratio:1;object-fit:contain;background:var(--soft);border-radius:8px;width:100%}
.card .meta,.card .sub{margin:0;color:var(--muted);font-size:.85rem}
.card .price{margin:auto 0 0;font-weight:700}
.badges{display:flex;flex-wrap:wrap;gap:4px;margin:4px 0}
.badge{font-size:.72rem;font-weight:700;border:1px solid var(--line);border-radius:5px;padding:1px 6px;text-decoration:none;background:#fff}
.badge.snow{background:#e8f1fd;border-color:#b6d1f3;color:#0b4a8b}
.stars{color:#b7791f;font-weight:600;margin:0}
.hubs{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.hub{border:1px solid var(--line);border-radius:var(--r);padding:14px;text-decoration:none;color:var(--ink);background:var(--soft)}
.hub strong{display:block}.hub span{font-size:.88rem;color:var(--muted)}
.hub:hover{border-color:var(--brand2)}
.brandlist{list-style:none;padding:0;display:grid;grid-template-columns:repeat(2,1fr);gap:8px}
.brandlist a{display:block;border:1px solid var(--line);border-radius:8px;padding:10px 12px;text-decoration:none;color:var(--ink)}
.brandlist span{display:block;font-size:.82rem;color:var(--muted)}
.chips{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.chips a{display:inline-block;border:1px solid var(--line);border-radius:20px;padding:5px 12px;text-decoration:none;font-size:.92rem;background:#fff}
.chips a:hover{border-color:var(--brand2)}
.grid2,.grid3,.grid4{display:grid;gap:20px}
.guides{display:grid;gap:12px}
.guide{display:block;border:1px solid var(--line);border-radius:var(--r);padding:14px;text-decoration:none;color:var(--ink)}
.guide span{display:block;color:var(--muted);font-size:.9rem;margin-top:4px}.guide time{display:block;font-size:.8rem;color:var(--muted);margin-top:6px}

/* product pages */
.pp-grid{display:grid;gap:20px;margin-top:8px}
.gallery img{background:var(--soft);border-radius:var(--r);aspect-ratio:1;object-fit:contain;width:100%}
.thumbs{display:flex;gap:8px;margin-top:8px}.thumbs img{width:72px}
.keyfacts{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;margin:12px 0}
.keyfacts div{background:var(--soft);border-radius:8px;padding:8px 10px}
.keyfacts dt{font-size:.78rem;color:var(--muted)}.keyfacts dd{margin:0;font-weight:700}
.buybox{border:1px solid var(--line);border-radius:var(--r);padding:16px;margin:12px 0;background:#fff}
.price{font-weight:700}.price.big{font-size:1.8rem;margin:0}
.was{text-decoration:line-through;color:var(--muted);margin:0}
.stock{font-weight:700;font-size:.88rem}.stock.in_stock{color:var(--ok)}.stock.low_stock{color:var(--warn)}.stock.out_of_stock{color:var(--bad)}.stock.backorder{color:var(--warn)}
form.add{display:flex;gap:8px;align-items:end;margin:8px 0}
form.add label{margin:0}form.add select{width:76px}
form.add.compact select{width:62px;padding:6px}form.add.compact button{padding:7px 10px;font-size:.9rem}
.byline{font-size:.9rem;color:var(--muted)}
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
table{border-collapse:collapse;width:100%}
th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line);vertical-align:middle}
thead th{font-size:.8rem;color:var(--muted);background:var(--soft)}
.rimrow th{background:#eef2f8;font-size:.9rem}
table.specs th[scope=row]{width:40%;font-weight:600;color:var(--muted)}
.plist{list-style:none;padding:0;margin:0}
.prow{display:grid;grid-template-columns:72px 1fr;gap:10px;padding:12px 0;border-bottom:1px solid var(--line)}
.prow img,.prow .noimg{width:72px;height:72px;object-fit:contain;background:var(--soft);border-radius:8px}
.pinfo{display:flex;flex-direction:column;gap:2px}.pinfo a{text-decoration:none}
.pbuy{grid-column:1/-1;display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.prose{max-width:60em}.prose p,.prose li{max-width:70ch}
.prose table{margin:1em 0}
.faq details{border:1px solid var(--line);border-radius:8px;margin:8px 0;background:#fff}
.faq summary{cursor:pointer;padding:12px 14px;font-weight:600}
.faq details>div{padding:0 14px 8px}
.review{border-left:4px solid var(--accent);margin:12px 0;padding:8px 14px;background:var(--soft);border-radius:0 8px 8px 0}
.review footer{font-size:.85rem;color:var(--muted)}.verified{color:var(--ok);font-weight:700}
.review-form{margin-top:16px}.review-form summary{cursor:pointer;font-weight:600}
.hp{position:absolute;left:-5000px}
.proscons ul{padding-left:20px}
.author-box{background:var(--soft);border-radius:var(--r);padding:12px 16px;margin:20px 0}
.author-head{display:flex;gap:16px;align-items:center}.author-head img{width:110px;border-radius:50%}
details.more{margin:16px 0}details.more summary{cursor:pointer;font-weight:600}
.hero-img img{border-radius:var(--r)}

/* cart & checkout */
.cart-table td,.cart-table th{padding:10px 8px}
.totals{max-width:380px;margin-left:auto}
.totals div{display:flex;justify-content:space-between;padding:4px 0}
.totals .grand{font-size:1.2rem;font-weight:700;border-top:2px solid var(--ink);margin-top:6px;padding-top:8px}
.checkout{display:grid;gap:24px}
fieldset{border:1px solid var(--line);border-radius:var(--r);padding:12px 16px;margin:0 0 16px}
legend{font-weight:700;padding:0 6px}
.radio{display:flex;gap:8px;align-items:center;font-weight:500}.radio input{width:auto}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
#card-number,#card-date,#card-cvv,#card-postal-code{border:1px solid var(--line);border-radius:8px;height:44px;padding:0 8px;margin-bottom:8px;background:#fff}
.notice{background:#fff8e1;border:1px solid #f3d27a;border-radius:8px;padding:10px 14px}
.error{background:#fdecea;border:1px solid #f5c2bd;border-radius:8px;padding:10px 14px}
.success{background:#e7f6ee;border:1px solid #b7e2c8;border-radius:8px;padding:10px 14px}
.toast{position:fixed;left:50%;bottom:20px;transform:translateX(-50%);background:var(--ink);color:#fff;padding:10px 16px;border-radius:8px;z-index:20}
.toast a{color:var(--accent)}

/* trust + footer */
.trust{background:var(--soft);margin-top:40px;padding:24px 0;border-top:1px solid var(--line)}
.trust p{margin:4px 0 0;color:var(--muted);font-size:.9rem}
footer.site{background:var(--brand);color:#c9d3e8;padding:28px 0 16px;font-size:.92rem}
footer.site a{color:#fff;text-decoration:none}footer.site a:hover{text-decoration:underline}
footer.site ul{list-style:none;padding:0;margin:0}footer.site li{margin:4px 0}
footer.site address{font-style:normal}
.f-h{color:#fff;font-weight:700;margin:0 0 8px}
.legal{display:flex;flex-wrap:wrap;gap:16px;border-top:1px solid #29466f;margin-top:20px;padding-top:12px;font-size:.85rem}
.pay{margin-top:12px;font-size:.85rem}

@media (min-width:640px){
  .cards{grid-template-columns:repeat(3,1fr)}
  .hubs{grid-template-columns:repeat(4,1fr)}
  .brandlist{grid-template-columns:repeat(4,1fr)}
  .grid2{grid-template-columns:1fr 1fr}.grid3{grid-template-columns:repeat(3,1fr)}.grid4{grid-template-columns:repeat(2,1fr)}
  .guides{grid-template-columns:repeat(3,1fr)}
  .hide-sm{display:inline}
  .keyfacts{grid-template-columns:repeat(3,1fr)}
  .prow{grid-template-columns:96px 1fr auto}.prow img,.prow .noimg{width:96px;height:96px}
  .pbuy{grid-column:auto;flex-direction:column;align-items:flex-end}
}
@media (min-width:960px){
  .search{flex:1 1 auto;order:0;max-width:460px}
  .menu-btn{display:none}
  .main-nav{display:block}
  .main-nav .wrap{flex-direction:row;gap:22px}
  .main-nav a{border:0;padding:10px 0}
  .cards{grid-template-columns:repeat(4,1fr)}
  .hero-grid{grid-template-columns:1.1fr 1fr;align-items:center}
  .pp-grid{grid-template-columns:420px 1fr;gap:36px}
  .grid4{grid-template-columns:repeat(4,1fr)}
  .checkout{grid-template-columns:1.3fr 1fr}
}
@media print{.topbar,header.site,.trust,footer.site,form.add{display:none}}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
.cols{columns:2 180px;padding-left:18px}.prose img{border-radius:8px;margin:12px 0}