:root{color-scheme:dark;--bg: #0a0d13;--surface: #121722;--raised: #1b2130;--text: #e7edf5;--muted: #93a1b3;--faint: #6b7688;--accent: #1fc8e3;--accent-ink: #062126;--good: #34d399;--warn: #ff5d73;--border: rgba(255, 255, 255, .09);--border-strong: rgba(255, 255, 255, .16);--grid: rgba(255, 255, 255, .07);--radius: 18px;--radius-sm: 12px;--maxw: 1120px;--measure: 72ch;--ui: "Segoe UI Variable Display", "Segoe UI Variable", "Segoe UI", system-ui, -apple-system, "SF Pro Display", Roboto, sans-serif;--mono: "Cascadia Code", "SF Mono", "JetBrains Mono", ui-monospace, Consolas, monospace;--shadow: 0 24px 60px -20px rgba(0, 0, 0, .65)}*{box-sizing:border-box}html{background:var(--bg)}body{margin:0;font-family:var(--ui);color:var(--text);background:var(--bg);line-height:1.5;-webkit-font-smoothing:antialiased}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3{line-height:1.15;margin:0 0 .4em;letter-spacing:-.01em}h1{font-size:clamp(1.9rem,4vw,2.6rem);font-weight:700}h2{font-size:clamp(1.3rem,2.4vw,1.6rem);font-weight:650;margin-top:2.2rem}h3{font-size:1.05rem;font-weight:650;color:var(--text)}p{margin:0 0 1em;max-width:var(--measure)}small,.muted{color:var(--muted)}.faint{color:var(--faint)}.num{font-family:var(--mono);font-variant-numeric:tabular-nums}.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}.site-header{border-bottom:1px solid var(--border);background:#0a0d13d9;backdrop-filter:blur(8px);position:sticky;top:0;z-index:10}.site-header .wrap{display:flex;align-items:center;gap:22px;height:60px}.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:700;letter-spacing:-.01em}.brand:hover{text-decoration:none}.brand svg{width:26px;height:26px}.brand .ck{color:var(--accent)}.nav{display:flex;gap:4px;margin-left:auto;order:2}.nav a{color:var(--muted);padding:6px 10px;border-radius:8px;font-weight:500}.nav a:hover,.nav a[aria-current=page]{color:var(--text);background:var(--raised);text-decoration:none}.cta{order:3;background:var(--accent);color:var(--accent-ink);font-weight:650;padding:7px 14px;border-radius:999px;font-size:.92rem;white-space:nowrap}.cta:hover{text-decoration:none;filter:brightness(1.08)}.cta[aria-current=page]{filter:brightness(.92)}.menu-btn{display:none;order:4;background:transparent;border:1px solid var(--border-strong);color:var(--text);border-radius:10px;width:42px;height:40px;align-items:center;justify-content:center;cursor:pointer}.menu-btn[aria-expanded=true]{background:var(--raised)}main{padding:32px 0 64px}.hero{padding:24px 0 8px}.hero .kicker{color:var(--accent);font-weight:600;text-transform:uppercase;letter-spacing:.08em;font-size:.78rem;margin-bottom:8px}.hero p.lead{font-size:1.12rem;color:var(--muted);max-width:60ch}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px 22px}.card.raised{background:var(--raised)}.grid{display:grid;gap:14px}.grid.two{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}.grid.three{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin:14px 0 6px}.stat{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);padding:14px 16px;min-width:0}.stat .v{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:1.55rem;font-weight:600;line-height:1.1;color:var(--text);word-break:break-word}.stat .v small{font-size:.85rem;color:var(--muted);font-family:var(--ui);font-weight:500;margin-left:4px}.stat .l{color:var(--muted);font-size:.82rem;margin-top:6px}.stat .s{color:var(--faint);font-size:.78rem;margin-top:2px}.stat.hero .v{font-size:2.3rem}.stat.accent{border-color:#1fc8e359}.stat.accent .v{color:var(--accent)}.dotc{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:8px;vertical-align:1px}.hero-photo{--overlap: 84px;position:relative;isolation:isolate;overflow:hidden;background:var(--bg);min-height:560px;display:flex;align-items:center;padding:72px 0 calc(var(--overlap) + 56px)}.hero-photo-img,.hero-photo-img img{position:absolute;inset:0;width:100%;height:100%;display:block}.hero-photo-img img{object-fit:cover;object-position:25% 60%;filter:saturate(.75) brightness(.62);z-index:-2}.hero-photo-scrim{position:absolute;inset:0;z-index:-1;background:linear-gradient(to bottom,rgba(10,13,19,.34) 0%,rgba(10,13,19,.22) 36%,rgba(10,13,19,.8) 74%,var(--bg) 100%),linear-gradient(to right,#0a0d1300 40%,#0a0d1380 62%,#0a0d139e)}.hero-photo-body{position:relative;width:100%;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.hero-photo-text{grid-column:2}.hero-photo .kicker{color:var(--accent);font-weight:600;text-transform:uppercase;letter-spacing:.08em;font-size:.78rem;margin-bottom:10px;text-shadow:0 1px 2px rgba(0,0,0,.5)}.hero-photo h1{font-size:clamp(2rem,3.4vw,2.75rem);max-width:23ch;text-wrap:balance;text-shadow:0 2px 8px rgba(0,0,0,.45)}.hero-photo p.lead{font-size:1.12rem;color:#e7edf5d6;max-width:58ch;margin:0;text-shadow:0 1px 3px rgba(0,0,0,.5)}.car-pick.over{position:relative;z-index:2;margin-top:calc(-1 * (var(--overlap, 84px) + 32px))}.car-pick{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:28px 0 4px}.car-pick-btn{display:flex;flex-direction:column;align-items:center;gap:1px;padding:14px 12px 12px;border:1px solid var(--border-strong);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow);color:var(--muted);min-width:0;transition:border-color .15s,color .15s,background .15s}.car-pick-btn:hover{color:var(--car);border-color:var(--border-strong);text-decoration:none}.car-pick-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.car-pick-btn .car-icon{display:block;width:100%;max-width:250px;height:auto;margin-bottom:8px}.car-pick-btn .name{font-weight:650;font-size:.95rem;color:var(--muted)}.car-pick-btn .span{font-size:.78rem;color:var(--faint)}.car-pick-btn:hover .name{color:var(--text)}.car-pick-btn[aria-current=true]{color:var(--car);border-color:var(--car);background:var(--surface);background:color-mix(in srgb,var(--car) 9%,var(--surface))}.car-pick-btn[aria-current=true] .name{color:var(--text)}.car-pick-btn[aria-current=true] .span{color:var(--muted)}.car-panel>h2:first-child{margin-top:1.6rem}.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface)}table{border-collapse:collapse;width:100%;font-size:.92rem}th,td{padding:8px 12px;text-align:left;border-bottom:1px solid var(--border);white-space:nowrap}th{color:var(--muted);font-weight:600;font-size:.78rem;text-transform:uppercase;letter-spacing:.05em;background:var(--raised);position:sticky;top:0}td.n,th.n{text-align:right;font-family:var(--mono);font-variant-numeric:tabular-nums}th.n{font-family:var(--ui)}tr:last-child td{border-bottom:0}tbody tr:hover td{background:#ffffff06}td.notes{white-space:normal;min-width:180px;color:var(--muted)}th[data-sort]{cursor:pointer;user-select:none}th[data-sort]:hover{color:var(--text)}th[data-sort].asc:after{content:" ▲";font-size:.7em}th[data-sort].desc:after{content:" ▼";font-size:.7em}.tag{display:inline-block;font-size:.72rem;padding:1px 7px;border-radius:999px;border:1px solid var(--border-strong);color:var(--muted);margin-right:4px;vertical-align:1px}.tag.oil{color:var(--good);border-color:#34d39966}.tag.tires{color:var(--accent);border-color:#1fc8e366}.figure{margin:18px 0 26px}.figure figcaption{color:var(--muted);font-size:.86rem;margin-top:8px;max-width:var(--measure)}.chart-box{overflow-x:auto;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px 8px 6px}svg.chart{display:block;width:100%;min-width:640px;height:auto;font-family:var(--ui)}.figure.compact{margin:6px 0 10px}.figure.compact h3{margin-bottom:6px}.chart-box.compact svg.chart{min-width:0}.chart-box.compact{padding:8px 4px 2px}svg.chart .grid{stroke:var(--grid);stroke-width:1}svg.chart .axisline{stroke:var(--border-strong);stroke-width:1}svg.chart .tick{stroke:var(--border-strong);stroke-width:1}svg.chart .axis{fill:var(--muted);font-size:12px}svg.chart .legend{fill:var(--text);font-size:12px}svg.chart .rowlabel{fill:var(--text);font-size:13px}svg.chart .value{fill:var(--text);font-size:12px;font-family:var(--mono)}svg.chart .reflabel{fill:var(--muted);font-size:11px}svg.chart .ref{stroke:var(--muted);stroke-width:1;stroke-dasharray:4 4;opacity:.8}svg.chart .band{fill:#ffffff0d}svg.chart .bandlabel{fill:var(--muted);font-size:11px}svg.chart .line{fill:none;stroke-linejoin:round;stroke-linecap:round}svg.chart .line.dash{stroke-dasharray:5 4}svg.chart .endlabel{fill:var(--text);font-size:12px;font-weight:600;paint-order:stroke;stroke:var(--surface);stroke-width:3px;stroke-linejoin:round}svg.chart .endlabel.muted{fill:var(--faint);font-size:11px;font-weight:500}svg.chart .dot{stroke:var(--surface);stroke-width:2}svg.chart .hit{fill:transparent;cursor:default}svg.chart .hit:hover{fill:#ffffff0f}svg.chart .bar:hover{opacity:.85}.tip{position:fixed;z-index:50;pointer-events:none;background:var(--raised);color:var(--text);border:1px solid var(--border-strong);border-radius:8px;padding:6px 10px;font-size:.82rem;font-family:var(--mono);box-shadow:var(--shadow);white-space:pre;max-width:320px}.controls{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:14px 0}.controls label{color:var(--muted);font-size:.85rem;display:flex;align-items:center;gap:6px}input[type=search],select{background:var(--surface);color:var(--text);border:1px solid var(--border-strong);border-radius:10px;padding:8px 12px;font:inherit;font-size:.92rem}input[type=search]{min-width:220px}.btn{display:inline-block;background:var(--accent);color:var(--accent-ink);font-weight:650;padding:9px 16px;border-radius:10px;border:0}.btn:hover{text-decoration:none;filter:brightness(1.08)}.btn.ghost{background:transparent;color:var(--text);border:1px solid var(--border-strong)}.pill-row{display:flex;gap:8px;flex-wrap:wrap;margin:8px 0 18px}.pill{border:1px solid var(--border-strong);color:var(--muted);border-radius:999px;padding:4px 12px;font-size:.85rem}.pill:hover{color:var(--text);text-decoration:none;border-color:var(--accent)}.method{border-left:3px solid var(--border-strong);padding:6px 14px;color:var(--muted);font-size:.88rem;margin:12px 0}.finding{display:grid;grid-template-columns:minmax(0,1fr);gap:4px;padding:16px 0;border-bottom:1px solid var(--border)}.finding .value{font-family:var(--mono);font-size:1.35rem;font-weight:600}.finding .why{color:var(--muted);font-size:.9rem;max-width:var(--measure)}.counter{display:flex;align-items:baseline;gap:10px}.counter .v{font-family:var(--mono);font-size:1.7rem;font-weight:600}.site-footer{border-top:1px solid var(--border);padding:26px 0 40px;color:var(--muted);font-size:.88rem}.site-footer .wrap{display:flex;flex-wrap:wrap;gap:8px 28px;align-items:center}.compare-cols{display:grid;grid-template-columns:1fr 1fr;gap:14px}.tankform{max-width:720px}.fields{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin-bottom:12px}.field{display:flex;flex-direction:column;gap:6px}.field.wide{grid-column:1 / -1}.field>span{color:var(--muted);font-size:.85rem;font-weight:600}.field>span small{font-weight:400}.field input,.field select{background:var(--raised);color:var(--text);border:1px solid var(--border-strong);border-radius:10px;padding:12px 14px;font:inherit;font-size:1.15rem;font-family:var(--mono);min-width:0}.field select{font-family:var(--ui);font-size:1rem}.field input:focus,.field select:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:var(--accent)}.field small{color:var(--faint);font-size:.78rem}.check{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:.9rem;align-self:end;padding-bottom:12px}.check input{width:18px;height:18px;accent-color:var(--accent)}.more{margin:4px 0 14px}.more summary{cursor:pointer;color:var(--muted);font-size:.9rem;margin-bottom:10px}.actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:6px}.actions .btn{font-size:1rem;padding:12px 20px;cursor:pointer;font-family:var(--ui)}.actions .btn[disabled]{opacity:.6;cursor:default}.errors{margin-top:12px;border-left:3px solid var(--warn);padding:8px 14px;color:var(--text);background:#ff5d7314;border-radius:0 10px 10px 0}.errors div+div{margin-top:6px}.preview,.done{margin-top:16px;max-width:720px}.quick{display:flex;gap:6px;flex-wrap:wrap;margin-top:4px}.quick .pill{background:transparent;cursor:pointer;font:inherit;font-size:.85rem}.items{border:0;padding:0;margin:0 0 14px}.items legend{color:var(--muted);font-size:.85rem;font-weight:600;padding:0;margin-bottom:6px}.check-pill{display:inline-flex;align-items:center;gap:6px;color:var(--text);padding:8px 12px;font-size:.95rem}.check-pill input{accent-color:var(--accent);width:16px;height:16px;margin:0}.check-pill:has(input:checked){border-color:var(--accent);background:#1fc8e31f}.pill.oil,.tag.oil{color:var(--good);border-color:#34d39966}.tag.est{color:var(--faint)}table.svc td.done{white-space:normal;max-width:190px;min-width:150px;line-height:1.25}table.svc td.done .tag{display:inline-block;white-space:nowrap;margin:2px 4px 2px 0}table.svc td.where{white-space:normal;min-width:130px;max-width:200px}table.svc td.notes{min-width:200px}table.svc td.notes.long{min-width:280px;max-width:420px}.notice{max-width:720px;margin:0 0 16px;border-left:3px solid var(--warn);background:#ff5d7314;border-radius:0 10px 10px 0;padding:10px 14px}@media(max-width:960px){.hero-photo-body{grid-template-columns:minmax(0,1fr)}.hero-photo-text{grid-column:1}.hero-photo-scrim{background:linear-gradient(to bottom,rgba(10,13,19,.5) 0%,rgba(10,13,19,.42) 40%,rgba(10,13,19,.84) 74%,var(--bg) 100%)}}@media(max-width:720px){.hero-photo{--overlap: 64px;min-height:500px;padding-top:56px}.hero-photo-img img{object-position:30% 62%}.car-pick{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.car-pick-btn{padding:12px 10px 10px}.site-header .wrap{height:auto;min-height:58px;padding:9px 16px;flex-wrap:wrap;gap:10px}.brand{order:1;margin-right:auto}.cta{order:2}.menu-btn{display:inline-flex;order:3}.nav{display:none;order:4;width:100%;flex-direction:column;gap:2px;margin:4px 0 2px;padding-top:6px;border-top:1px solid var(--border)}.nav.open{display:flex}.nav a{padding:11px 8px;font-size:1.05rem}.compare-cols{grid-template-columns:1fr}th,td{padding:7px 9px}}.heat{border-collapse:separate;border-spacing:3px;width:100%;font-size:.8rem}.heat th{background:transparent;border:0;padding:4px 2px;text-align:center;position:static}.heat th.y{text-align:right;padding-right:8px}.heat td{border:0;border-radius:6px;text-align:center;padding:9px 2px;font-family:var(--mono);font-variant-numeric:tabular-nums;min-width:44px}.heat td.empty{background:#ffffff06;color:var(--faint)}.heat-legend{display:flex;align-items:center;gap:10px;margin:10px 0 0;color:var(--muted);font-size:.82rem}.heat-legend .bar{height:10px;width:180px;border-radius:5px}