:root{--ink:#161a1f;--steel:#46505d;--graphite:#2d333b;--border:#d7dde5;--panel:#f6f8fa;--surface:#ffffff;--accent:#b3261e;--accent-dark:#7f1d16;--road:#20252b}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--surface);font-family:Arial,Helvetica,sans-serif;line-height:1.6}a{color:inherit;text-decoration:none}main{min-height:70vh}.site-header{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:24px;padding:18px clamp(20px,4vw,56px);border-bottom:1px solid var(--border);background:rgba(255,255,255,.96);position:sticky;top:0;z-index:10}.brand-mark{display:inline-flex;align-items:center;width:min(252px,54vw)}.brand-logo{display:block;width:100%;height:auto}.account-menu,.auth-nav,.button-row,.main-nav{display:flex;align-items:center;gap:16px;flex-wrap:wrap}.auth-nav a,.main-nav a,.small-link,.text-button{font-size:.94rem;color:var(--steel)}.text-button{border:0;background:transparent;cursor:pointer;padding:0;font:inherit}.avatar{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:50%;background:var(--road);color:#fff;font-weight:700}.hero-section{min-height:560px;display:grid;align-items:end;padding:clamp(48px,7vw,96px) clamp(20px,4vw,56px);color:#fff;background:linear-gradient(90deg,rgba(22,26,31,.88),rgba(22,26,31,.58)),url(/images/commercial-tire-warehouse.png) 50% /cover}.hero-copy{max-width:780px}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(2.35rem,5vw,5rem);line-height:1;margin-bottom:20px}h1,h2{letter-spacing:0}h2{font-size:clamp(1.6rem,2.4vw,2.45rem);line-height:1.15}h3{font-size:1.15rem}.eyebrow{text-transform:uppercase;font-size:.78rem;letter-spacing:.08em;color:var(--accent);font-weight:700}.hero-section .eyebrow{color:#ffcbc6}.primary-button,.secondary-button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 18px;border-radius:6px;border:1px solid transparent;font-weight:700;cursor:pointer}.primary-button{background:var(--accent);color:#fff}.secondary-button{background:#fff;color:var(--road);border-color:var(--border)}.content-band,.dashboard-page,.form-page,.page-hero,.policy-page,.split-section{padding:clamp(42px,6vw,78px) clamp(20px,4vw,56px)}.narrow,.policy-page{max-width:980px;margin:0 auto}.section-heading{max-width:760px;margin-bottom:26px}.category-grid,.dashboard-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.category-card-link,.category-grid>div{display:block}.admin-section,.category-grid article,.dashboard-grid article{border:1px solid var(--border);border-radius:8px;padding:22px;background:var(--surface)}.category-card-link article{height:100%;transition:border-color .16s ease,box-shadow .16s ease,transform .16s ease}.category-card-link:focus-visible article,.category-card-link:hover article{border-color:var(--accent);box-shadow:0 10px 24px rgba(32,37,43,.12);transform:translateY(-2px)}.split-section{display:grid;grid-template-columns:.8fr 1.2fr;gap:32px;background:var(--panel)}.product-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.product-card{border:1px solid var(--border);border-radius:8px;overflow:hidden;background:#fff}.product-image{position:relative;aspect-ratio:4/3;background:var(--panel)}.product-image img{object-fit:cover}.product-content{padding:20px}.price-label{color:var(--accent-dark);font-weight:700}details{margin-top:16px}summary{cursor:pointer;font-weight:700}.form-page{display:grid;grid-template-columns:minmax(0,.9fr) minmax(320px,1.1fr);gap:36px;align-items:start}.form-panel{display:grid;gap:14px;border:1px solid var(--border);border-radius:8px;padding:24px;background:var(--surface)}label{display:grid;gap:6px;color:var(--graphite);font-weight:700}input,select,textarea{width:100%;border:1px solid var(--border);border-radius:6px;padding:11px 12px;font:inherit}textarea{resize:vertical}.form-error{color:#8a1b13;font-weight:700}.form-success{color:#1f6f3d;font-weight:700}.contact-block{display:grid;gap:6px;margin-top:24px;color:var(--steel)}.policy-page header{border-bottom:1px solid var(--border);margin-bottom:28px;padding-bottom:20px}.policy-page section{margin-bottom:34px}.faq-list{display:grid;gap:18px}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse}td,th{border-bottom:1px solid var(--border);padding:10px;text-align:left;vertical-align:top}.inline-form{display:flex;gap:8px;align-items:center}.inline-form select{min-width:150px}.site-footer{display:grid;grid-template-columns:1fr auto;gap:24px;padding:36px clamp(20px,4vw,56px);background:var(--road);color:#fff}.site-footer nav{display:grid;gap:8px}@media (max-width:860px){.category-grid,.dashboard-grid,.form-page,.product-grid,.site-footer,.site-header,.split-section{grid-template-columns:1fr}.hero-section{min-height:480px}}