:root{color-scheme:light;font-family:Arial,sans-serif;color:#183d36;background:#faf6ed;line-height:1.7}*{box-sizing:border-box}body{margin:0}a{color:#185647;text-underline-offset:4px}header{max-width:1120px;margin:auto;padding:18px 24px;display:flex;align-items:center;justify-content:space-between;gap:20px}header img{width:190px;max-width:40vw}header nav,.seo-shortcuts{display:flex;flex-wrap:wrap;align-items:center;gap:12px}header details{position:relative}header details nav{position:absolute;inset-inline-end:0;width:240px;background:#fff6e3;border:1px solid #b6a278;padding:16px;z-index:2}summary{cursor:pointer}.seo-cover{padding:64px max(24px,calc((100% - 960px)/2));background:linear-gradient(90deg,#0b302ce8,#0b302c95),url('/assets/rai-hero.webp') center/cover;color:#fff}.seo-cover h1{font-family:Georgia,serif;font-size:clamp(2rem,4vw,3rem);line-height:1.2;max-width:900px}.seo-cover p{max-width:800px}.seo-shortcuts{max-width:1008px;margin:24px auto;padding:0 24px}.seo-shortcuts a,.seo-button,header nav>a,summary{background:#fff1d7;border:1px solid #a69a7d;border-radius:10px;padding:10px 16px;font-weight:bold;text-decoration:none;display:inline-block}.seo-button{background:#214a40;color:white;min-height:44px}.seo-content{max-width:1008px;margin:auto;padding:0 24px 36px}.seo-content section{margin:26px 0;border-bottom:1px solid #c9c9b9;padding-bottom:24px}.seo-content h2{font-size:1.6rem;line-height:1.3}.seo-content h3{font-size:1.2rem}.seo-content p{max-width:850px}.seo-place{border:1px solid #c0c9be;border-radius:14px;padding:18px 22px;margin:18px 0;background:#fffaf0}.seo-place p{margin:10px 0}.seo-gold{background:#d8b56b;color:#17352d;border:2px solid #ab8640}.table-scroll{overflow-x:auto}table{border-collapse:collapse;width:100%;background:#fffaf0}th,td{text-align:start;vertical-align:top;padding:14px;border:1px solid #bec6b9}th{background:#214a40;color:white}footer{border-top:1px solid #c9c9b9;padding:24px}a:focus-visible,summary:focus-visible{outline:3px solid #b88921;outline-offset:3px}@media(max-width:600px){header{padding:14px 16px;align-items:flex-start}header nav{gap:6px;font-size:.85rem}.seo-cover{padding:40px 22px}.seo-content{padding:0 20px 24px}th,td{padding:10px}.seo-shortcuts a{flex:1 1 45%;text-align:center}}

.ferry-evidence{background:#fffaf0;border:1px solid #b6a278;border-radius:12px;margin:20px 0;padding:16px}.ferry-evidence summary{color:#173e35;min-height:44px}.ferry-evidence figure{margin:18px 0 0}.ferry-evidence img{width:100%;height:auto;display:block;border-radius:8px}.ferry-evidence figcaption{margin-top:12px;font-size:.95rem;color:#214a40}

[data-calculator]{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;padding:22px;background:#fffaf0;border:2px solid #b6a278;border-radius:14px}[data-calculator] label{display:grid;gap:8px;font-weight:700}[data-calculator] input{width:100%;min-height:48px;padding:12px;border:1px solid #718a7c;border-radius:8px;font:inherit;color:#173e35;background:#fff}[data-calculator] input:focus-visible{outline:3px solid #b88921;outline-offset:2px}.calculator-result{grid-column:1/-1;margin:0;font-size:1.2rem;font-weight:bold;overflow-wrap:anywhere}.calculator-result output{display:block;font-size:1.6rem;color:#173e35}@media(max-width:600px){[data-calculator]{grid-template-columns:1fr;padding:18px}}

/* Guide navigation remains usable without JavaScript. */
.seo-skip{position:absolute;top:-100px;left:16px;padding:12px;background:#fff1d7;z-index:10}.seo-skip:focus{top:12px}.seo-toc{border:1px solid #b6a278;border-radius:14px;background:#fffaf0;padding:20px;margin:24px 0;display:flex;flex-wrap:wrap;gap:10px}.seo-toc p{flex-basis:100%;margin:0 0 8px}.seo-toc a{padding:8px 12px;border:1px solid #b6a278;border-radius:8px;min-height:44px;text-decoration:none;font-weight:600}.seo-content h2[id]{scroll-margin-top:24px}@media(max-width:600px){.seo-toc{padding:16px;gap:8px}.seo-toc a{flex:1 1 100%}}