:root{
  --bg:#f5f5f2;
  --surface:#ffffff;
  --surface-2:#eeeeea;
  --ink:#141414;
  --muted:#70706b;
  --border:#d9d9d3;
  --accent:#ff5427;
  --accent-soft:#fff0ea;
  --green:#1e8b57;
  --blue:#2468ff;
  --danger:#c73c30;
  --radius:14px;
  --max:1180px;
  --pad:clamp(18px,3vw,34px);
  --shadow:0 8px 30px rgba(20,20,20,.06);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;
  line-height:1.45;
}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
[hidden]{display:none!important}

.shell{width:min(var(--max),calc(100% - var(--pad)*2));margin-inline:auto}
.page{min-height:calc(100vh - 64px)}

.site-header{
  position:sticky;top:0;z-index:50;
  height:64px;
  display:grid;
  grid-template-columns:auto 1fr auto;
  align-items:center;
  gap:26px;
  padding:0 max(var(--pad),calc((100vw - var(--max))/2));
  background:rgba(245,245,242,.92);
  border-bottom:1px solid var(--border);
  backdrop-filter:blur(16px);
}
.wordmark{
  font-size:.98rem;
  font-weight:900;
  letter-spacing:.18em;
}
.wordmark:before{
  content:"";
  display:inline-block;
  width:9px;height:9px;
  margin-right:9px;
  border-radius:2px;
  background:var(--accent);
  transform:rotate(12deg);
}
.main-nav{display:flex;justify-content:center;gap:4px}
.main-nav a{
  padding:9px 13px;
  border-radius:9px;
  color:var(--muted);
  font-size:.88rem;
  font-weight:650;
}
.main-nav a:hover,.main-nav a.active{background:var(--surface);color:var(--ink)}
.header-car{
  display:flex;align-items:center;gap:8px;
  max-width:220px;
  padding:8px 10px;
  border-radius:10px;
  color:var(--muted);
  font-size:.78rem;
  font-weight:700;
}
.header-car:hover,.header-car.active{background:var(--surface);color:var(--ink)}
.header-car b{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.car-dot{width:7px;height:7px;border-radius:50%;background:var(--accent)}

.page-title,.simple-hero{
  padding:56px 0 30px;
}
.page-title{
  border-bottom:1px solid var(--border);
}
.page-title h1,.simple-hero h1{
  margin:0;
  font-size:clamp(2.6rem,6vw,5.6rem);
  line-height:.95;
  letter-spacing:-.065em;
}
.page-title .sub,.simple-hero .sub{
  margin:14px 0 0;
  max-width:610px;
  color:var(--muted);
  font-size:1.03rem;
}
.compact-title{padding-bottom:24px}
.kicker{display:none}

.hero{
  padding:clamp(72px,10vw,130px) 0 70px;
  border-bottom:1px solid var(--border);
}
.hero-top{display:block}
.hero .display{
  margin:0;
  max-width:880px;
  font-size:clamp(3.8rem,9vw,8.2rem);
  line-height:.9;
  letter-spacing:-.075em;
  text-transform:none;
}
.display .slash{color:var(--accent)}
.hero p.lede{
  margin:22px 0 0;
  max-width:560px;
  color:var(--muted);
  font-size:clamp(1.05rem,2vw,1.3rem);
}
.hero-stamp{display:none}

.actions{display:flex;flex-wrap:wrap;gap:9px;margin-top:22px}
.btn{
  appearance:none;
  border:1px solid var(--border);
  border-radius:10px;
  background:var(--surface);
  padding:10px 14px;
  font-weight:750;
  font-size:.84rem;
  transition:.14s ease;
}
.btn:hover{transform:translateY(-1px);border-color:#b9b9b2;background:#fafaf8}
.btn.dark{background:var(--ink);border-color:var(--ink);color:#fff}
.btn.dark:hover{background:#2b2b2b}
.btn.orange{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.blue{background:var(--blue);border-color:var(--blue);color:#fff}
.btn.ghost{background:transparent}
.btn.small{padding:8px 11px;font-size:.78rem}
.btn:disabled{opacity:.38;cursor:not-allowed;transform:none}

.home-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:12px;
  padding:28px 0 8px;
}
.home-card{
  min-height:150px;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  padding:20px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  transition:.15s ease;
}
.home-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.home-card strong{font-size:1.35rem;letter-spacing:-.035em}
.home-card span{color:var(--muted);font-size:.87rem}
.home-card .arrow{color:var(--accent);font-size:1.4rem}
.index-strip{display:none}

.active-band{
  margin:28px 0 64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:20px;
  border:1px solid var(--border);
  border-radius:var(--radius);
  background:var(--surface);
}
.active-band h2{margin:0;font-size:1.45rem;letter-spacing:-.035em}
.active-band .meta{margin-top:4px;color:var(--muted);font-size:.83rem}

.section{padding:44px 0 70px}
.section + .section{border-top:1px solid var(--border)}
.section-head{
  display:flex;
  align-items:end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:20px;
}
.section-head .num{display:none}
.section-head h1,.section-head h2{
  margin:0;
  font-size:clamp(1.8rem,4vw,3.2rem);
  line-height:1;
  letter-spacing:-.055em;
  text-transform:none;
}
.section-head p{display:none}

.grid-2{display:grid;grid-template-columns:1.05fr .95fr;gap:28px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.rulebox{
  padding:20px;
  border:1px solid var(--border);
  border-radius:var(--radius);
  background:var(--surface);
}
.rulebox.orange-top,.rulebox.blue-top,.rulebox.acid-top{border-top:1px solid var(--border)}
.rulebox h2,.rulebox h3{margin:0 0 14px;letter-spacing:-.035em;text-transform:none}
.rulebox p{margin:0;color:var(--muted)}

.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.form-grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}
.field-wide{grid-column:1/-1}
label{
  display:grid;
  gap:6px;
  color:#464641;
  font-size:.78rem;
  font-weight:700;
}
input,select,textarea{
  width:100%;
  min-height:44px;
  border:1px solid var(--border);
  border-radius:10px;
  background:var(--surface);
  padding:10px 12px;
  outline:none;
  font-weight:550;
}
textarea{min-height:100px;resize:vertical}
input:focus,select:focus,textarea:focus{border-color:var(--ink);box-shadow:0 0 0 3px rgba(20,20,20,.06)}
.status{min-height:1.2em;color:var(--muted);font-size:.82rem}
.status.error{color:var(--danger);font-weight:700}
.micro{color:var(--muted);font-size:.75rem;font-weight:650}
.muted{color:var(--muted)}

.footer{
  width:min(var(--max),calc(100% - var(--pad)*2));
  margin:0 auto;
  padding:24px 0 34px;
  border-top:1px solid var(--border);
  color:var(--muted);
  font-size:.76rem;
}
.footer span:first-child{display:none}

/* garage */
.garage-list{display:grid;gap:9px}
.garage-row{
  display:grid;
  grid-template-columns:18px minmax(0,1fr) auto;
  gap:13px;
  align-items:center;
  padding:15px;
  border:1px solid var(--border);
  border-radius:12px;
  background:var(--surface);
}
.garage-row .flag{width:10px;height:10px;border:1px solid #aaa;border-radius:50%;background:transparent}
.garage-row.active .flag{background:var(--accent);border-color:var(--accent)}
.garage-row h3{margin:0;font-size:1.05rem;letter-spacing:-.02em}
.garage-row .full{margin-top:2px;color:var(--muted);font-size:.8rem}
.row-actions{display:flex;gap:6px;flex-wrap:wrap;justify-content:flex-end}
.empty{
  padding:22px;
  border:1px dashed #c7c7c0;
  border-radius:12px;
  background:rgba(255,255,255,.45);
  color:var(--muted);
}
.empty a{color:var(--ink);font-weight:700}

/* tools */
.tool-index{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.tool-link{
  min-height:150px;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  gap:12px;
  padding:20px;
  border:1px solid var(--border);
  border-radius:var(--radius);
  background:var(--surface);
}
.tool-link:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.tool-link .tag{display:none}
.tool-link h2{margin:0;font-size:1.4rem;letter-spacing:-.04em;text-transform:none}
.tool-link p{margin:0;color:var(--muted);font-size:.88rem}
.tool-arrow{font-size:1.3rem;color:var(--accent)}

.tool-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:20px;
  padding:30px 0 80px;
}
.tool-workbench{
  padding:24px;
  border:1px solid var(--border);
  border-radius:var(--radius);
  background:var(--surface);
}
.tool-workbench h2{margin:0 0 18px;font-size:1.25rem;letter-spacing:-.03em;text-transform:none}
.side-note{display:none}
.metric-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:8px;
  margin-top:18px;
}
.metric{
  min-height:92px;
  padding:14px;
  border:1px solid var(--border);
  border-radius:11px;
  background:var(--surface-2);
}
.metric span{display:block;color:var(--muted);font-size:.72rem;font-weight:650}
.metric strong{display:block;margin-top:7px;font-size:1.18rem;letter-spacing:-.03em}
.metric.hot{background:#fff0eb}.metric.good{background:#eff8f2}
.pair{display:grid;grid-template-columns:1fr 1fr;gap:12px}
fieldset{border:1px solid var(--border);border-radius:12px;padding:15px;margin:0}
legend{padding:0 6px;color:var(--muted);font-size:.78rem;font-weight:700}
.tire-row{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;align-items:center;gap:7px}

/* vehicle */
.vehicle-file-head{
  display:flex;
  align-items:end;
  justify-content:space-between;
  gap:22px;
  margin-bottom:20px;
}
.vehicle-file-head h2{margin:0;font-size:clamp(2rem,4vw,3.6rem);letter-spacing:-.06em}
.vehicle-file-meta{color:var(--muted);margin-top:5px}
.vehicle-switch{min-width:220px}
.vehicle-action-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:10px;
  margin-bottom:30px;
}
.vehicle-action{
  padding:17px;
  border:1px solid var(--border);
  border-radius:12px;
  background:var(--surface);
}
.vehicle-action:hover{box-shadow:var(--shadow)}
.vehicle-action span{display:none}
.vehicle-action strong{font-size:.94rem}
.vehicle-action.orange,.vehicle-action.blue,.vehicle-action.acid{background:var(--surface)}
.vehicle-file-grid{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:26px}
.section-label{margin-bottom:11px;font-size:.78rem;font-weight:750;color:var(--muted)}
.spec-rows,.latest-build{display:grid;gap:8px;margin-top:12px}
.spec-row,.latest-row{
  display:flex;justify-content:space-between;gap:20px;
  padding:11px 0;border-bottom:1px solid var(--border);
}
.compact-metrics{grid-template-columns:repeat(2,1fr)}

/* customize */
.build-head{
  display:flex;
  align-items:end;
  justify-content:space-between;
  gap:20px;
  padding:0 0 18px;
}
.build-head h2{margin:0;font-size:1.8rem;letter-spacing:-.045em}
.build-kpis{display:flex;gap:22px}
.build-kpis span{display:block;color:var(--muted);font-size:.72rem}
.build-kpis strong{font-size:1rem}
.build-toolbar{
  display:flex;
  align-items:center;
  gap:8px;
  padding:13px 0 18px;
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}
.select-car{max-width:370px;margin-right:auto}
.build-planner-head{display:none}
.build-planner{display:grid}
.build-category-row{
  display:grid;
  grid-template-columns:190px minmax(0,1fr) 100px 110px;
  gap:20px;
  align-items:start;
  padding:18px 0;
  border-bottom:1px solid var(--border);
}
.build-category-name{display:block}
.build-category-name>span{display:none}
.build-category-name h3{margin:1px 0 0;font-size:1.05rem;letter-spacing:-.025em}
.build-category-name p{display:none}
.build-category-selected{display:grid;gap:8px}
.category-empty{padding:9px 0;color:#aaa;font-size:.86rem}
.selected-part{
  display:grid;
  grid-template-columns:58px minmax(0,1fr) auto 28px;
  gap:11px;
  align-items:center;
  padding:9px;
  border:1px solid var(--border);
  border-radius:11px;
  background:var(--surface);
}
.selected-part img,.part-thumb-fallback{
  width:58px;height:50px;object-fit:contain;
  border-radius:8px;background:#fff;
}
.part-thumb-fallback{display:grid;place-items:center;color:var(--muted);font-size:.72rem}
.selected-part-copy{min-width:0}
.selected-part-copy strong{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:.9rem}
.selected-part-copy span{display:block;margin-top:2px;color:var(--muted);font-size:.72rem;text-transform:capitalize}
.selected-part-copy a{display:inline-block;margin-top:3px;color:var(--muted);font-size:.72rem;text-decoration:underline}
.selected-price{font-weight:750;font-size:.86rem}
.remove-part{border:0;background:transparent;color:var(--muted);font-size:1.2rem}
.build-category-total{padding-top:9px;font-weight:750;font-size:.86rem;text-align:right}
.build-category-action{text-align:right;padding-top:2px}
.notice{display:none}

/* parts */
.parts-browser-layout{
  display:grid;
  grid-template-columns:230px minmax(0,1fr);
  gap:28px;
  align-items:start;
}
.parts-filters{
  position:sticky;top:84px;
  display:grid;gap:11px;
  padding:16px;
  border:1px solid var(--border);
  border-radius:var(--radius);
  background:var(--surface);
}
.back-link{font-size:.82rem;font-weight:700;color:var(--muted)}
.filter-pair{display:grid;grid-template-columns:1fr 1fr;gap:7px}
.catalog-status{font-size:.72rem;color:var(--muted)}
.affiliate-disclosure{margin:3px 0 0;color:var(--muted);font-size:.68rem;line-height:1.35}
.results-top{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  padding:0 0 13px;
  border-bottom:1px solid var(--border);
}
.results-top .micro{display:none}
.results-top strong{font-size:.95rem}
.badge{
  padding:6px 9px;
  border-radius:999px;
  background:var(--surface-2);
  color:var(--muted);
  font-size:.7rem;font-weight:700;
}
.product-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:12px;
  padding-top:12px;
}
.product-card{
  display:flex;flex-direction:column;min-width:0;
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
  background:var(--surface);
}
.product-card:hover{box-shadow:var(--shadow)}
.product-image{
  position:relative;
  aspect-ratio:4/3;
  background:#fff;
  overflow:hidden;
}
.product-image img{width:100%;height:100%;object-fit:contain;padding:8px}
.product-image-missing{height:100%;display:grid;place-items:center;color:var(--muted);font-size:.75rem}
.product-condition{position:absolute;top:8px;left:8px;padding:4px 7px;border-radius:999px;background:#fff;font-size:.65rem;font-weight:700}
.product-body{display:flex;flex:1;flex-direction:column;gap:7px;padding:13px}
.product-source{color:var(--muted);font-size:.7rem;font-weight:650}
.product-card h2{
  margin:0;
  font-size:.92rem;
  line-height:1.3;
  letter-spacing:-.015em;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.product-card p{margin:0;color:var(--muted);font-size:.76rem}
.product-bottom{display:flex;align-items:end;justify-content:space-between;gap:8px;margin-top:auto;padding-top:9px}
.product-bottom>strong{font-size:1rem}
.product-actions{display:flex;gap:5px}
.catalog-empty,.catalog-loading{
  grid-column:1/-1;
  min-height:230px;
  display:grid;
  place-content:center;
  text-align:center;
  color:var(--muted);
}
.catalog-empty strong{color:var(--ink);font-size:1.3rem}
.drawer{
  position:fixed;inset:0;z-index:70;
  display:grid;place-items:center;
  padding:20px;
  background:rgba(20,20,20,.4);
}
.drawer-card{
  width:min(700px,100%);
  max-height:90vh;overflow:auto;
  padding:22px;
  border-radius:16px;
  background:var(--surface);
  box-shadow:0 30px 80px rgba(0,0,0,.22);
}
.drawer-head{display:flex;justify-content:space-between;align-items:start;gap:20px;margin-bottom:18px}
.drawer-head h2{margin:0;font-size:1.5rem;letter-spacing:-.04em}

/* details */
details summary{cursor:pointer}

/* mobile */
@media(max-width:980px){
  .grid-2,.vehicle-file-grid{grid-template-columns:1fr}
  .vehicle-action-strip{grid-template-columns:repeat(2,1fr)}
  .product-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .build-category-row{grid-template-columns:150px minmax(0,1fr) 90px}
  .build-category-action{grid-column:2/4;text-align:left;padding-top:0}
}
@media(max-width:760px){
  .site-header{grid-template-columns:auto 1fr;height:auto;min-height:60px;padding-top:7px;padding-bottom:7px}
  .main-nav{grid-column:1/-1;grid-row:2;justify-content:flex-start;overflow:auto}
  .header-car{justify-self:end}
  .home-grid,.grid-3,.tool-index{grid-template-columns:1fr}
  .grid-2,.form-grid.three,.form-grid{grid-template-columns:1fr}
  .field-wide{grid-column:auto}
  .active-band{align-items:flex-start;flex-direction:column}
  .metric-grid{grid-template-columns:repeat(2,1fr)}
  .vehicle-file-head{align-items:flex-start;flex-direction:column}
  .vehicle-switch{width:100%;min-width:0}
  .parts-browser-layout{grid-template-columns:1fr}
  .parts-filters{position:static}
  .build-head{align-items:flex-start;flex-direction:column}
  .build-toolbar{align-items:stretch;flex-wrap:wrap}
  .select-car{max-width:none;width:100%}
  .build-category-row{grid-template-columns:1fr;padding:17px 0}
  .build-category-total,.build-category-action{grid-column:auto;text-align:left;padding-top:0}
}
@media(max-width:520px){
  .product-grid{grid-template-columns:1fr}
  .vehicle-action-strip{grid-template-columns:1fr 1fr}
  .pair{grid-template-columns:1fr}
  .selected-part{grid-template-columns:52px minmax(0,1fr) 26px}
  .selected-part img,.part-thumb-fallback{width:52px;height:46px}
  .selected-price{grid-column:2;text-align:left}
  .remove-part{grid-column:3;grid-row:1}
}

/* v6.1 catalog loading */
.skeleton-card{pointer-events:none}
.skeleton-block,.skeleton-line{
  position:relative;
  overflow:hidden;
  background:#e8e8e3;
}
.skeleton-block:after,.skeleton-line:after{
  content:"";
  position:absolute;
  inset:0;
  transform:translateX(-100%);
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.65),transparent);
  animation:noxlane-shimmer 1.15s infinite;
}
.skeleton-line{height:12px;border-radius:6px;margin:5px 0}
.skeleton-line.short{width:30%}
.skeleton-line.mid{width:70%}
.skeleton-line.price{width:38%;height:16px;margin-top:18px}
@keyframes noxlane-shimmer{100%{transform:translateX(100%)}}