:root{--bg:#f4f5f7;--surface:#ffffff;--ink:#1e2731;--muted:#4a5562;--accent:#2a4a6b;--accent-ink:#ffffff;--accent2:#f2b705;--line:#d8dde3;--hero-ink:#1e2731;--r:4px;--maxw:1200px;--measure:68ch;--hf:'Kreon', 'Rockwell', Georgia, serif;--bf:'Roboto', '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:700;letter-spacing:-.005em}
h1{font-size:clamp(2rem,5vw,3.3rem);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)}
.od header.site{background:#fff;border-bottom:0;box-shadow:0 1px 0 var(--line);position:relative}
.od header.site::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:6px;background:repeating-linear-gradient(-45deg,#f2b705 0 12px,#26313d 12px 24px);z-index:2}
.od .brand{font-weight:700;font-size:1.35rem;color:#1e2731;letter-spacing:.01em}
.od nav.main a{font-weight:500;font-size:.93rem;color:#35414e}
.od nav.main a:hover{color:#2a4a6b}
.od nav.main a[aria-current]{border-color:#f2b705;border-bottom-width:3px;color:#1e2731}
.od .hero{background:#fff;border-bottom:1px solid var(--line)}
.od .hero .wrap{padding-top:64px;padding-bottom:60px}
.od .hero .kicker{display:inline-block;font-weight:700;text-transform:uppercase;letter-spacing:.12em;font-size:.74rem;color:#1e2731;background:#f2b705;padding:5px 12px;border-radius:2px;margin-bottom:1.1em}
.od .hero h1{max-width:22ch;color:#1e2731}
.od .hero .lead{color:#4a5562}
.od .hero.split img{border-radius:4px;box-shadow:10px 10px 0 #f2b705}
.od .hero.banner img{border-radius:4px;max-height:420px;border-bottom:6px solid #f2b705}
.od.p-index .hero.plain{background:linear-gradient(90deg,#fff 0 58%,#eef0f3 58%)}
.od.p-index .hero.plain .wrap{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr);column-gap:56px;align-items:center}
.od.p-index .hero.plain .wrap>*:not(.sign){grid-column:1}
.od .hero .kicker{justify-self:start}
.od .sign{grid-column:2;grid-row:1/span 3;justify-self:center;width:min(300px,100%);aspect-ratio:1;display:grid;place-items:center}
.od .sign-face{width:70.7%;aspect-ratio:1;transform:rotate(45deg);background:#f2b705;border:10px solid #f2b705;outline:4px solid #26313d;outline-offset:-16px;border-radius:14px;box-shadow:14px 14px 0 rgba(38,49,61,.14);display:grid;place-items:center}
.od .sign-in{transform:rotate(-45deg);display:flex;flex-direction:column;align-items:center;gap:8px}
.od .sign-face b{font:700 3.4rem/1 var(--hf);color:#1e2731}
.od .sign-face small{font-weight:700;font-size:.8rem;text-transform:uppercase;letter-spacing:.14em;color:#1e2731}
.od .sign-cars{display:flex;align-items:center;gap:6px}
.od .sign-cars i{display:block;width:26px;height:14px;background:#1e2731;border-radius:5px}
.od .sign-cars em{display:block;width:30px;border-top:3px dashed #1e2731}
.od .prose h2{display:flex;align-items:center;gap:.55em;color:#1e2731}
.od .prose h2::before{content:"";flex:none;width:.5em;height:.5em;background:#f2b705;outline:2px solid #26313d;outline-offset:1px;transform:rotate(45deg)}
.od .prose h3{color:#2a4a6b;font-size:1.14rem}
.od .callout{border-left:6px solid #f2b705;background:#fffaeb;border-radius:0 4px 4px 0}
.od .callout.stop{border-left-color:#26313d;background:#eef0f3}
.od th{background:#26313d;color:#fff;font-family:var(--bf);font-weight:500;font-size:.85rem;letter-spacing:.03em}
.od tbody tr:nth-child(even) td{background:#f7f8fa}
.od .table-wrap{background:#fff;border:1px solid var(--line);border-radius:4px}
.od .table-wrap table{margin:0}
.od .cards{grid-template-columns:repeat(auto-fit,minmax(min(100%,270px),1fr));gap:16px}
.od .card{border-radius:4px;padding:22px 20px 20px;position:relative;border-top:5px solid #26313d}
.od .card::after{content:"";position:absolute;top:-5px;right:0;width:46px;height:5px;background:#f2b705}
.od a.card:hover{border-color:#2a4a6b;box-shadow:0 10px 24px rgba(30,39,49,.08)}
.od .card .ck{display:block;font-size:.72rem;text-transform:uppercase;letter-spacing:.14em;color:#6b5100;font-weight:700;margin-bottom:.45em}
.od .card h3{color:#1e2731;font-size:1.2rem;margin-bottom:.4em}
.od details{background:#fff;border-left:5px solid #f2b705;border-radius:0 4px 4px 0}
.od summary{color:#1e2731}
.od .steps li::before{background:#f2b705;color:#1e2731;border-radius:4px;transform:rotate(45deg);font-family:var(--hf)}
.od .steps li::before{content:""}
.od .steps li>span.n{position:absolute;left:0;top:0;width:30px;height:30px;display:grid;place-items:center;font:700 .95rem var(--hf);color:#1e2731;z-index:1}
.od .ph{margin:0 0 1.6em}.od .ph img{border-radius:4px;width:100%;aspect-ratio:16/8;object-fit:cover}.od .ph figcaption{font-size:.86rem;color:var(--muted);margin-top:.5em}
.od footer.site{background:#26313d;color:#c8d0d9;border-top:6px solid #f2b705}
.od footer.site a{color:#f6cf4d}
.od .page.toc-layout .toc{border-left:4px solid #f2b705}
.od .page.toc-layout .toc strong{font-family:var(--hf)}
.od .page.toc-layout .toc a:hover{color:#2a4a6b}
/* Gap ladder */
.od .gaps{background:#fff;border:1px solid var(--line);border-radius:6px;padding:20px 22px 16px;margin:0 0 2.2em;box-shadow:0 5px 0 #e3e7ec}
.od .gp-head{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;margin:0 0 14px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.od .gp-head p{margin:0}
.od .gp-tag{font-size:.74rem;font-weight:700;text-transform:uppercase;letter-spacing:.14em;background:#26313d;color:#f6cf4d;padding:5px 11px;border-radius:2px}
.od .gp-speed{margin-left:auto;font-size:.92rem;color:var(--muted);display:flex;align-items:center;gap:8px}
.od .gp-speed select{font:inherit;padding:6px 10px;border:2px solid #26313d;border-radius:4px;background:#fff;color:#1e2731}
.od .gp-speed select:focus{outline:3px solid #f2b705;outline-offset:1px}
.od .gp-list{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.od .gp-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:4px 16px;padding:12px 14px;border-radius:4px;color:var(--ink);text-decoration:none;border:1px solid transparent}
.od .gp-row:hover{border-color:#d0d6dd;background:#fafbfc}
.od .gp-cond{font-weight:700}
.od .gp-sec{font-size:.95rem;color:var(--muted);white-space:nowrap}.od .gp-sec b{font:700 1.15rem var(--hf);color:#1e2731}
.od .strip{grid-column:1/-1;width:100%;height:auto;display:block;border-radius:3px}
.od .strip .asph{fill:#3a4553}.od .strip .yl{stroke:#f2b705;stroke-width:3}.od .strip .wl{stroke:#fff;stroke-width:2.5}
.od .strip .gapf{fill:rgba(242,183,5,.85)}.od .strip .ext{fill:rgba(242,183,5,.38)}
.od .strip .tk{stroke:#1e2731;stroke-width:2}
.od .strip .you rect:first-child{fill:#fff}.od .strip .lead rect:first-child{fill:#c4ccd5}
.od .strip .ws{fill:#3a4553}
.od .gp-ft{font-size:.92rem;color:var(--muted)}.od .gp-ft b{color:#1e2731}
.od .gp-why{grid-column:1/-1;font-size:.9rem;color:var(--muted);line-height:1.5}
.od .gp-note{font-size:.84rem;color:var(--muted);margin:10px 0 0;max-width:none!important}
@media(min-width:1280px){.od .gp-row{grid-template-columns:minmax(200px,.8fr) minmax(0,2.6fr) minmax(170px,.7fr);align-items:center;gap:6px 22px}.od .strip{grid-column:2;grid-row:1/span 2}.od .gp-sec{grid-column:1;grid-row:2}.od .gp-cond{grid-column:1;grid-row:1}.od .gp-ft{grid-column:3;grid-row:1}.od .gp-why{grid-column:3;grid-row:2;font-size:.84rem}}
/* Walk-around */
.od .walk{display:grid;grid-template-columns:minmax(0,1fr);gap:20px;background:#fff;border:1px solid var(--line);border-radius:6px;padding:20px;margin:0 0 2em}
.od .wk-car{width:100%;max-width:560px;height:auto;justify-self:center}
.od .wk-car .body{fill:#e6eaee;stroke:#26313d;stroke-width:3}.od .wk-car .glass{fill:#9fb0c2}.od .wk-car .tire{fill:#26313d}
.od .wk-dot circle{fill:#f2b705;stroke:#26313d;stroke-width:2.5}.od .wk-dot text{font:700 14px var(--bf);fill:#1e2731}
.od .wk-list{margin:0;padding-left:1.4em;display:grid;gap:8px}
.od .wk-list li::marker{font-family:var(--hf);font-weight:700;color:#2a4a6b}
@media(min-width:1100px){.od .walk{grid-template-columns:minmax(0,1fr) minmax(0,1.2fr);align-items:center}}
@media(min-width:1800px){.od .gaps{padding:28px 32px 20px}.od .cards{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}.od .sign{width:360px}}
@media(max-width:960px){.od.p-index .hero.plain .wrap{grid-template-columns:1fr}.od.p-index .hero.plain{background:#fff}.od .sign{grid-column:1;grid-row:auto;justify-self:start;width:220px;margin-top:20px}.od .sign-face b{font-size:2.5rem}.od .sign-face small{font-size:.7rem}.od .sign-in{gap:5px}.od .sign-cars i{width:20px;height:11px}.od .sign-cars em{width:22px}}
@media(max-width:520px){.od .gaps{padding:14px 12px}.od .gp-row{padding:10px 4px}.od .gp-speed{margin-left:0}.od .hero .wrap{padding-top:40px;padding-bottom:40px}}