:root{--bg:#f3f4f1;--surface:#ffffff;--ink:#23282c;--muted:#4f575d;--accent:#2a7047;--accent-ink:#ffffff;--accent2:#e3a21a;--line:#d6dad4;--hero-ink:#ffffff;--r:8px;--maxw:1200px;--measure:68ch;--hf:'Headland One', Georgia, serif;--bf:'Fira Sans', 'Segoe UI', system-ui, sans-serif}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 var(--bf)}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent);text-underline-offset:.18em}
h1,h2,h3,h4{font-family:var(--hf);line-height:1.18;margin:1.6em 0 .5em;font-weight:400;letter-spacing:0}
h1{font-size:clamp(2rem,5vw,3.2rem);margin-top:0}
h2{font-size:clamp(1.4rem,3vw,2rem)}h3{font-size:1.2rem}
p,ul,ol,table,details{margin:0 0 1.1em}
.wrap{max-width:max(var(--maxw),min(88vw,1760px));margin:0 auto;padding:0 20px}
@media(min-width:1800px){body article.prose>:is(p,ul,ol,h2,h3,h4,blockquote,dl,details,.callout,.disclosure,.table-wrap){max-width:52rem}}
.skip{position:absolute;left:-999px}.skip:focus{left:10px;top:10px;background:var(--surface);padding:8px;z-index:9}
header.site{border-bottom:1px solid var(--line);background:var(--surface)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:14px;padding-bottom:14px;flex-wrap:wrap}
.brand{font-family:var(--hf);font-weight:800;font-size:1.25rem;color:var(--ink);text-decoration:none;display:flex;align-items:center;gap:10px}
.brand svg{flex:none}
nav.main ul{list-style:none;display:flex;flex-wrap:wrap;gap:4px 18px;margin:0;padding:0}
nav.main a{color:var(--ink);text-decoration:none;font-size:.95rem;padding:4px 0;border-bottom:2px solid transparent}
nav.main a[aria-current]{border-color:var(--accent)}
.menu-btn{display:none}
@media(max-width:760px){.menu-btn{display:inline-block;background:none;border:1px solid var(--line);color:var(--ink);border-radius:var(--r);padding:6px 12px;font:inherit}
nav.main{width:100%;display:none}nav.main.open{display:block}nav.main ul{flex-direction:column;gap:6px}}
.hero{position:relative;overflow:hidden}
.hero .wrap{padding-top:56px;padding-bottom:56px}
.hero .lead{font-size:1.18rem;color:var(--muted);max-width:60ch}
.hero.full{color:var(--hero-ink);min-height:440px;display:flex;align-items:flex-end}
.hero.full img.bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero.full::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.05),rgba(0,0,0,.62))}
.hero.full .wrap{position:relative;z-index:1;width:100%}.hero.full .lead{color:inherit;opacity:.92}
.hero.split .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.hero.split img{border-radius:var(--r);aspect-ratio:4/3;object-fit:cover;width:100%}
.hero.banner img{width:100%;max-height:380px;object-fit:cover;border-radius:var(--r);margin-top:28px}
.hero.plain{background:var(--surface);border-bottom:1px solid var(--line)}
@media(max-width:760px){.hero.split .wrap{grid-template-columns:1fr}.hero.full{min-height:340px}.hero .wrap{padding-top:36px;padding-bottom:36px}}
.page{display:grid;gap:48px;padding-top:40px;padding-bottom:64px}
.page.toc-layout{grid-template-columns:220px minmax(0,1fr)}
.page.toc-layout .toc{position:sticky;top:20px;align-self:start;font-size:.92rem;border-left:3px solid var(--accent);padding-left:14px}
.page.toc-layout .toc ul{list-style:none;padding:0;margin:0}.page.toc-layout .toc li{margin:.35em 0}
.page.toc-layout .toc a{color:var(--muted);text-decoration:none}
@media(max-width:860px){.page.toc-layout{grid-template-columns:1fr}.page.toc-layout .toc{position:static}}
/* Content uses the full container width (cards, grids, tables); only running text keeps a readable measure. */
article.prose{max-width:none;min-width:0}
article.prose>:is(p,ul,ol,h2,h3,h4,blockquote,dl,details,.callout,.disclosure,.table-wrap){max-width:47.5rem;margin-left:auto;margin-right:auto}
.page.toc-layout article.prose>*{margin-left:0;margin-right:0}
/* A heading that introduces a full-width block (cards, grid, table) lines up with that block, not the text column. */
body article.prose>:is(h2,h3):has(+ :is(.cards,nav,div,table,section,ul.grid)){max-width:none;margin-left:0;margin-right:0}
.page.wide article.prose>*{max-width:none}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;margin:0 0 1.4em}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px}
.card h3{margin-top:0}.card p:last-child{margin-bottom:0}
a.card{display:block;color:var(--ink);text-decoration:none}a.card:hover{border-color:var(--accent)}
.callout{border-left:4px solid var(--accent2);background:var(--surface);padding:14px 18px;border-radius:0 var(--r) var(--r) 0;margin:0 0 1.2em}
.table-wrap{overflow-x:auto;margin:0 0 1.2em}
table{border-collapse:collapse;width:100%;font-size:.95rem}
th,td{border-bottom:1px solid var(--line);padding:9px 10px;text-align:left;vertical-align:top}
th{font-family:var(--hf);background:var(--surface)}
details{border:1px solid var(--line);border-radius:var(--r);padding:10px 16px;background:var(--surface)}
summary{cursor:pointer;font-weight:600}
.steps{counter-reset:s;list-style:none;padding:0}.steps li{counter-increment:s;position:relative;padding-left:44px;margin-bottom:1em}
.steps li::before{content:counter(s);position:absolute;left:0;top:0;width:30px;height:30px;border-radius:50%;background:var(--accent);color:var(--accent-ink);display:grid;place-items:center;font-weight:700;font-size:.9rem}
.btn{display:inline-block;background:var(--accent);color:var(--accent-ink);padding:10px 18px;border-radius:var(--r);text-decoration:none;font-weight:600;border:0;font:inherit;cursor:pointer}
.aff{border:1px dashed var(--accent);border-radius:var(--r);padding:16px 18px;margin:0 0 1.2em;background:var(--surface)}
.aff .tag{font-size:.75rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}
.disclosure{font-size:.88rem;color:var(--muted);border:1px solid var(--line);border-radius:var(--r);padding:10px 14px;margin:0 0 1.6em}
.meta{font-size:.88rem;color:var(--muted)}
dl dt{font-family:var(--hf);font-weight:700;margin-top:1em}dl dd{margin:.2em 0 0 0;color:var(--ink)}
footer.site{border-top:1px solid var(--line);background:var(--surface);font-size:.92rem;color:var(--muted)}
footer.site .wrap{padding-top:32px;padding-bottom:32px;display:grid;gap:18px}
footer.site ul{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:6px 18px}
footer.site a{color:var(--muted)}
.mc header.site{background:#fff;border-bottom:0;border-top:5px solid #2a7047;box-shadow:0 1px 0 var(--line)}
.mc .brand{font-weight:400;font-size:1.3rem;color:#23282c}
.mc nav.main a{font-weight:500;font-size:.94rem;color:#3a4248}
.mc nav.main a:hover{color:#2a7047}
.mc nav.main a[aria-current]{border-color:#e3a21a;color:#23282c}
.mc .hero{background:#2f3437;color:#fff;border-bottom:0}
.mc .hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:8px;background:repeating-linear-gradient(90deg,#e3a21a 0 46px,transparent 46px 82px),#2f3437}
.mc .hero::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 85% 30%,rgba(42,112,71,.35),transparent 55%),radial-gradient(rgba(255,255,255,.035) 1px,transparent 1.5px) 0 0/6px 6px;pointer-events:none}
.mc .hero .wrap{position:relative;padding-bottom:64px}
.mc .hero .kicker{display:inline-block;font-weight:600;text-transform:uppercase;letter-spacing:.14em;font-size:.76rem;color:#23282c;background:#e3a21a;padding:4px 10px;border-radius:3px;margin-bottom:1.1em}
.mc .hero h1{color:#fff;max-width:24ch;line-height:1.22}
.mc .hero .lead{color:#d9dedb}
.mc .hero.banner img{border-radius:8px;max-height:440px;margin-top:32px;box-shadow:0 0 0 1px rgba(255,255,255,.12)}
.mc.p-index .hero.plain .wrap{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);column-gap:56px;align-items:center}
.mc.p-index .hero.plain .wrap>*:not(.dash){grid-column:1}
.mc .hero .kicker{justify-self:start}
.mc .dash{grid-column:2;grid-row:1/span 3;justify-self:end;background:#23282c;border:1px solid #4a5258;border-radius:14px;padding:22px 24px;box-shadow:inset 0 0 0 4px #2b3135,0 18px 40px rgba(0,0,0,.25)}
.mc .dash-lbl{margin:0 0 .5em;font-size:.72rem;text-transform:uppercase;letter-spacing:.18em;color:#9fb0a6}
.mc .dash .odo i{font-size:2.1rem;width:1.35em;padding:.18em 0}
.mc .dash-row{display:flex;gap:22px;margin-top:16px;border-top:1px dashed #4a5258;padding-top:12px}
.mc .dash-row p{margin:0;color:#c5ccc8;font-size:.9rem}.mc .dash-row b{display:block;font:400 1.6rem var(--hf);color:#7fd09d}
.mc .dash-row p+p b{color:#f0c35a}
.mc .prose h2{position:relative;padding-bottom:.35em;color:#23282c}
.mc .prose h2::after{content:"";position:absolute;left:0;bottom:0;width:88px;height:4px;background:repeating-linear-gradient(90deg,#2a7047 0 18px,transparent 18px 26px)}
.mc .prose h3{color:#2a7047;font-size:1.12rem}
.mc .callout{border-left:5px solid #e3a21a;background:#fdf6e6;border-radius:0 8px 8px 0}
.mc .callout.eco{border-left-color:#2a7047;background:#ecf5ef}
.mc th{background:#2f3437;color:#fff;font-family:var(--bf);font-weight:600;font-size:.84rem;letter-spacing:.03em}
.mc td.num{font-variant-numeric:tabular-nums;white-space:nowrap}
.mc tbody tr:nth-child(even) td{background:#f7f8f6}
.mc .table-wrap{background:#fff;border:1px solid var(--line);border-radius:8px}
.mc .table-wrap table{margin:0}
.mc .cards{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.mc .card{border-radius:8px;position:relative;padding:22px 20px 20px;border-bottom:4px solid #2a7047}
.mc a.card:hover{border-color:#e3a21a;box-shadow:0 8px 20px rgba(35,40,44,.08)}
.mc .card .ck{display:block;font-size:.72rem;text-transform:uppercase;letter-spacing:.14em;color:#8a5f00;font-weight:600;margin-bottom:.4em}
.mc .card h3{color:#23282c;font-size:1.15rem;margin-bottom:.45em}
.mc details{background:#fff;border-left:4px solid #e3a21a}
.mc summary{color:#23282c}
.mc .steps li::before{background:#2f3437;color:#f0c35a;border-radius:6px;font-family:var(--hf);font-weight:400}
.mc .ph{margin:0 0 1.6em}.mc .ph img{border-radius:8px;width:100%;aspect-ratio:16/8;object-fit:cover}.mc .ph figcaption{font-size:.86rem;color:var(--muted);margin-top:.5em}
.mc dl.gloss{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:6px 28px}
.mc dl.gloss div{border-top:2px solid var(--line);padding-top:.4em}.mc dl.gloss dt{margin-top:0;color:#2a7047}
.mc footer.site{background:#2f3437;color:#c9d0cc;border-top:8px solid #2f3437;box-shadow:inset 0 8px 0 -4px #e3a21a}
.mc footer.site a{color:#f0c35a}
.mc .page.toc-layout .toc{border-left:3px dashed #e3a21a}
.mc .page.toc-layout .toc strong{font-family:var(--hf);font-weight:400}
/* Odometer digits */
.mc .odo{display:inline-flex;gap:2px;vertical-align:middle}
.mc .odo i{font:500 .95rem/1 var(--bf);font-style:normal;font-variant-numeric:tabular-nums;width:1.25em;text-align:center;padding:.28em 0;color:#fff;background:linear-gradient(#1b1f22,#3a4146 50%,#1b1f22);border-radius:3px}
.mc .odo i:last-child{background:linear-gradient(#b8820f,#e3a21a 50%,#b8820f);color:#23282c}
/* Fill-up log */
.mc .flog{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px 22px 22px;margin:0 0 2.2em;box-shadow:0 4px 0 #dfe3dd}
.mc .fl-head{display:flex;flex-wrap:wrap;align-items:center;gap:10px 26px;margin:0 0 16px;padding-bottom:14px;border-bottom:1px dashed var(--line)}
.mc .fl-head p{margin:0}
.mc .fl-tag{font-size:.74rem;font-weight:600;text-transform:uppercase;letter-spacing:.14em;background:#2a7047;color:#fff;padding:4px 10px;border-radius:3px}
.mc .fl-start{font-size:.9rem;color:var(--muted);display:flex;align-items:center;gap:10px}
.mc .fl-avg{margin-left:auto!important;color:var(--muted);font-size:.92rem}.mc .fl-avg span{font:400 1.7rem var(--hf);color:#2a7047;margin-right:4px}
.mc .fl-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:20px}
.mc .flog .table-wrap{border:0;border-radius:0;margin:0}
.mc .flog td{vertical-align:middle;padding:8px 10px}
.mc .flog td.mpg{font-weight:600}
.mc .flog tr.up td.mpg{color:#2a7047}.mc .flog tr.dn td.mpg{color:#8a5f00}
.mc .flog td.note{font-size:.88rem;color:var(--muted);min-width:14em}
.mc .flog td.barc{min-width:120px}
.mc .bar{position:relative;display:block;height:10px;background:#eceee9;border-radius:5px}
.mc .bar i{display:block;height:100%;border-radius:5px;background:#2a7047}
.mc tr.dn .bar i{background:#e3a21a}
.mc .bar b{position:absolute;top:-4px;bottom:-4px;width:2px;background:#23282c}
.mc .fl-chart{margin:0;background:#f7f8f6;border-radius:8px;padding:12px 12px 8px}
.mc .fl-chart figcaption{font-size:.85rem;color:var(--muted);margin-top:.4em}
.mc .trend{width:100%;height:auto;display:block}
.mc .trend .gl{stroke:#dfe3dd;stroke-width:1}
.mc .trend .ax{font:500 12px var(--bf);fill:#6a7378}
.mc .trend .avg{stroke:#23282c;stroke-width:1.5;stroke-dasharray:6 5}
.mc .trend .avt{font:600 12px var(--bf);fill:#23282c}
.mc .trend .ln{fill:none;stroke:#2f3437;stroke-width:2.5;stroke-linejoin:round}
.mc .trend circle{stroke:#fff;stroke-width:2.5}.mc .trend circle.up{fill:#2a7047}.mc .trend circle.dn{fill:#e3a21a}
@media(min-width:1280px){.mc .fl-grid{grid-template-columns:minmax(0,1.5fr) minmax(340px,1fr);align-items:start}}
/* Mileage drains */
.mc article.prose>ul.drains,.mc article.prose>p.dn-scale{max-width:none;margin-left:0;margin-right:0}
@media(min-width:900px){.mc.p-index .cards{grid-template-columns:repeat(3,1fr)}}
.mc .drains{list-style:none;padding:0;margin:0 0 .4em;display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,420px),1fr));gap:12px 22px;max-width:none}
.mc .drains a{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:6px 14px;padding:14px 16px;background:#fff;border:1px solid var(--line);border-radius:8px;color:var(--ink);text-decoration:none}
.mc .drains a:hover{border-color:#2a7047}
.mc .dn-name{font-weight:600}.mc .dn-val{font:400 .95rem var(--hf);color:#8a5f00;white-space:nowrap}
.mc .lane{grid-column:1/-1;position:relative;height:16px;border-radius:3px;background:#2f3437 linear-gradient(90deg,transparent 0 6px,#fff 6px 22px,transparent 22px) 0 50%/34px 2px repeat-x}
.mc .lane i{position:absolute;top:2px;bottom:2px;min-width:6px;background:#e3a21a;border-radius:2px}
.mc .dn-why{grid-column:1/-1;font-size:.9rem;color:var(--muted);line-height:1.5}
.mc .dn-scale{display:flex;justify-content:space-between;gap:10px;font-size:.78rem;color:var(--muted);max-width:none!important;margin:0 0 1.6em}
/* Calculator */
.mc .calc{background:#2f3437;color:#fff;border-radius:12px;padding:22px;display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));align-items:end;margin:0 0 1.4em;max-width:none}
.mc .calc label{display:grid;gap:6px;font-size:.88rem;color:#c9d0cc}
.mc .calc input,.mc .calc select{font:inherit;padding:10px 12px;border-radius:6px;border:1px solid #59626a;background:#23282c;color:#fff}
.mc .calc input:focus,.mc .calc select:focus{outline:3px solid #e3a21a;outline-offset:1px}
.mc .calc output{grid-column:1/-1;display:block;background:#23282c;border-radius:8px;padding:14px 16px;color:#d9dedb}
.mc .calc output b{font:400 1.5rem var(--hf);color:#f0c35a}
@media(min-width:1800px){.mc .flog{padding:28px 32px}.mc .fl-grid{grid-template-columns:minmax(0,1.7fr) minmax(460px,1fr)}.mc .dash .odo i{font-size:2.5rem}.mc .cards{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}}
@media(max-width:960px){.mc.p-index .hero.plain .wrap{grid-template-columns:1fr}.mc .dash{grid-column:1;grid-row:auto;justify-self:start;margin-top:24px}}
@media(max-width:520px){.mc .dash .odo i{font-size:1.5rem}.mc .fl-avg{margin-left:0!important}.mc .flog{padding:14px}}