:root{--ink:#141512;--tan:#c9aa7b;--paper:#f6f5f1;--muted:#62665d}html{scroll-behavior:smooth;scroll-padding-top:24px}body{background:var(--paper)}header{position:relative;padding:22px max(24px,calc((100vw - 1120px)/2));border-bottom:4px solid var(--tan);overflow:hidden}header:after{content:'';position:absolute;right:0;top:0;width:80px;height:100%;background:var(--tan);clip-path:polygon(90% 0,100% 0,100% 100%,0 100%);pointer-events:none}header img{width:185px!important}header nav{display:flex;flex-wrap:wrap;gap:25px;z-index:1;padding-right:45px}header nav a{margin:0!important;font-size:11px;letter-spacing:1.2px;font-weight:750;color:#f4eee4}header nav a:hover{color:var(--tan)}main{padding-top:28px}.hero{position:relative;background:white;border:1px solid #deded4;padding:40px;overflow:hidden;isolation:isolate;margin-bottom:30px}.hero:before{content:'';position:absolute;inset:0 0 0 42%;background:var(--tan);clip-path:polygon(84% 0,100% 0,100% 100%,0 100%);z-index:-1}.hero:after{content:'';position:absolute;right:0;bottom:0;width:130px;height:110px;background:var(--ink);clip-path:polygon(100% 0,100% 100%,0 100%);z-index:-1}.hero .eyebrow{display:inline-block;background:var(--tan);color:var(--ink);padding:9px 15px;font-style:italic;letter-spacing:2px}.hero h1{font-size:clamp(44px,6.8vw,78px);font-weight:950;letter-spacing:-3px;line-height:.96;margin:24px 0 16px;font-style:italic;color:var(--ink);text-transform:uppercase}.hero h1 span{color:var(--ink)}.hero .tagline{font-size:21px;font-weight:650;letter-spacing:-.5px;margin:0 0 13px}.hero .intro{max-width:570px;font-size:14px;line-height:1.65;margin:0}.hero-chips{display:flex;flex-wrap:wrap;gap:9px;margin-top:23px;max-width:660px}.hero-chips a{background:var(--ink);color:white;padding:10px 14px;font-size:11px;font-weight:700;letter-spacing:.4px;text-decoration:none;border-left:3px solid var(--tan)}.hero-chips a:hover{background:#353830}.layout{margin-top:0;gap:24px;grid-template-columns:360px minmax(0,1fr);align-items:start}.panel{border-radius:6px;border:1px solid #dadbd2;box-shadow:0 5px 20px #14151206;overflow:hidden}.panel h2{font-size:19px;font-weight:800;letter-spacing:-.4px;margin-bottom:20px}.layout>.panel>h2,.layout>form>h2{background:var(--ink);color:#fff;padding:18px 24px;margin:-26px -26px 22px;border-bottom:3px solid var(--tan)}.resulthead{background:var(--ink);color:white;padding:18px 24px;margin:-26px -26px 22px;border-bottom:3px solid var(--tan)}.resulthead h2{margin:0}.pill{color:var(--ink);background:var(--tan);border-radius:3px;font-size:10px;letter-spacing:.6px;white-space:nowrap}.compound{border-radius:4px;position:relative;overflow:hidden;background:var(--ink);border-left:5px solid var(--tan)}.compound:after{content:'';position:absolute;right:-13px;top:0;width:24px;height:100%;transform:skew(-25deg);background:var(--tan)}.compound strong{font-style:italic}.tire h3{font-weight:850;letter-spacing:-.6px}.tire .eyebrow{font-size:10px;letter-spacing:1.5px}select,input,textarea{background:#fafaf7;border-color:#d7d8ce;border-radius:4px;font-size:15px}label{font-size:12px;color:#454a40;font-weight:750}button,.shop{border-radius:4px;font-weight:750;transition:background .15s}.primary{border-left:5px solid var(--ink);font-size:14px;padding:16px}.primary:hover{background:#dbbd91}.shop{border:1px solid #d9dbd0;font-size:12px}.shop:hover{background:#e5dfd3}.guide{gap:24px;margin-top:34px;scroll-margin-top:24px}.guide .panel{padding:16px}.guide h3{font-size:15px;text-transform:uppercase;letter-spacing:.6px;margin:0 0 14px;padding:3px 0 3px 12px;border-left:4px solid var(--tan)}.compound-chart{border:1px solid #dadbd1}.chart-link .shop{display:block;text-align:center}.note{color:#62665d}.foot{margin:18px 0 0}#track-reports{border-top:3px solid var(--ink);padding-top:30px;margin-top:45px!important}#track-reports>.eyebrow{color:#876739}#track-reports>h2{font-size:34px;font-weight:850;letter-spacing:-1px;margin-bottom:10px}#track-reports>.intro{margin-bottom:25px}#reports-list .tire{padding:20px 0}.installbox{background:#ebe5d9;border:0;border-left:5px solid var(--tan);border-radius:4px;margin-top:30px}.installbox strong{font-size:17px}.installbox p{color:#484e43}footer{background:var(--ink);color:white;border-top:4px solid var(--tan);font-size:11px;letter-spacing:2px;font-weight:750;padding:26px max(24px,calc((100vw - 1120px)/2))}footer span{color:var(--tan);float:right;font-size:10px;letter-spacing:1px}button:disabled:hover{background:var(--tan)}
@media(max-width:800px){header{padding:18px 20px;gap:17px}header img{width:155px!important}header nav{gap:17px;padding-right:12px}header:after{width:28px}main{padding:22px 16px 30px}.hero{padding:27px 22px;margin-bottom:23px}.hero:before{inset:0 0 0 70%;clip-path:polygon(80% 0,100% 0,100% 100%,0 100%)}.hero:after{width:40px;height:55px}.hero h1{font-size:54px;letter-spacing:-2px}.hero .tagline{font-size:18px}.hero .intro{padding-right:16px}.hero-chips{gap:7px}.hero-chips a{font-size:10px;padding:9px 11px}.layout,.guide{grid-template-columns:1fr}.panel{padding:22px}.layout>.panel>h2,.layout>form>h2,.resulthead{margin:-22px -22px 20px;padding:16px 22px}.resulthead{gap:10px}.resulthead h2{font-size:17px}footer span{float:none;display:block;margin-top:9px}.guide{margin-top:28px}#track-reports>h2{font-size:29px}}
@media(max-width:380px){.hero h1{font-size:44px}.resulthead{flex-wrap:wrap}header nav{gap:12px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}button,.shop{transition:none}}

.clay-guide{margin-top:24px}.clay-guide>.eyebrow{color:#876739}.clay-guide>h2{font-size:25px;margin-top:9px;margin-bottom:18px}.clay-guide-grid{display:grid;grid-template-columns:1fr 1fr;gap:25px}.clay-guide-grid article{border-left:4px solid var(--tan);padding-left:17px}.clay-guide-grid h3{font-size:17px;margin:8px 0}.clay-guide-grid p{font-size:14px;color:var(--muted);line-height:1.65;margin:0}.clay-dots{color:#a68858;font-size:27px;letter-spacing:3px}@media(max-width:800px){.clay-guide-grid{grid-template-columns:1fr;gap:20px}}
.baseline-label{font-size:11px;font-weight:800;letter-spacing:1.5px;border-top:1px solid #d9dbd0;margin:18px 0 14px;padding-top:18px}.learning-card{border:1px solid #c9aa7b;border-left:5px solid var(--tan);padding:18px;margin-bottom:14px;background:#f7f4ec}.learning-card h3{margin:10px 0 8px;font-size:23px;overflow-wrap:anywhere}.learning-card .eyebrow{color:#7b5b2e;font-size:10px;letter-spacing:1.4px}.learning-compound{font-size:15px;font-weight:750}.learning-card .note{margin:11px 0}.learning-empty{padding:15px;background:#f5f3ed;border-left:3px solid var(--tan);margin:0}.learning-method{font-size:11px}#owner-controls{margin-top:22px;border-top:1px solid #dadbd1;padding-top:16px}#owner-controls summary{font-size:13px;font-weight:750;cursor:pointer}