/* Additional navigation & contents; original theme.css is preserved unchanged. */
.skip-link{position:absolute;left:12px;top:-90px;z-index:1000;background:#fff;color:#101720;padding:10px 15px;border-radius:8px;font-weight:700}
.skip-link:focus{top:10px}
.site-nav{display:flex;flex-wrap:wrap;align-items:center;gap:12px;position:relative;z-index:30}
.nav-brand{white-space:normal;min-width:0;flex:0 0 auto}
.guide-nav{position:relative;flex:0 0 auto;font-size:14px;line-height:1.3;color:#fff;isolation:isolate}
.guide-nav summary{list-style:none;display:flex;align-items:center;gap:8px;cursor:pointer;padding:11px 14px;border:1px solid rgba(255,255,255,.3);border-radius:9px;font-weight:750;background:#18252f;color:#fff;white-space:nowrap}
.guide-nav summary::-webkit-details-marker{display:none}
.guide-nav summary::after{content:'▾';color:#48d0c5;line-height:1}
.guide-nav[open] summary{border-color:#4bd5c8;background:#1b3440}
.guide-nav:not([open])>.guide-nav-panel{display:none!important}
.guide-nav-panel{position:absolute;z-index:100;left:0;top:calc(100% + 7px);width:min(390px,calc(100vw - 30px));max-height:min(70vh,600px);overflow-y:auto;background:#111c25;border:1px solid #3b505e;border-radius:12px;padding:10px;box-shadow:0 18px 40px rgba(0,0,0,.4);display:grid;gap:3px}
.guide-nav-panel a{display:block;padding:10px 12px;color:#e7f4f2;text-decoration:none;font-size:14px;font-weight:550;line-height:1.35;border-radius:7px;overflow-wrap:break-word}
.guide-nav-panel a:hover,.guide-nav-panel a:focus-visible,.guide-nav-panel a[aria-current="page"]{background:#135f5a;color:#fff}
.guide-nav summary:focus-visible,.guide-nav-panel a:focus-visible,.toc-list a:focus-visible{outline:3px solid #53dfd0;outline-offset:2px}
.top-language-switcher{margin-left:auto!important;flex:0 0 auto}
.nav-cta{flex:0 0 auto}
.home-toc{padding:24px;border:1px solid var(--line);border-radius:18px;background:#f2f9f8;margin:2px 0 48px}
.home-toc h2{margin:0 0 12px;font-size:28px}
.home-toc p{font-size:16px;line-height:1.5;margin-bottom:18px;color:#46555d}
.toc-list{list-style:none!important;padding:0!important;margin:0!important;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.toc-list li{margin:0!important;min-width:0;padding:14px 16px;border-radius:11px;background:white;border:1px solid #d8e6e3;display:flex;flex-direction:column;justify-content:space-between;gap:7px}
.toc-list a{text-decoration:none;color:#17232b;font-weight:750;overflow-wrap:break-word;line-height:1.35}
.toc-list a:hover{text-decoration:underline;text-underline-offset:3px}
.toc-list .toc-more{color:#08786e;font-size:14px}
.inner-content{max-width:990px}
.inner-hero{border-bottom:1px solid var(--line);padding-bottom:25px;margin-bottom:30px}
.inner-heading{font-size:clamp(32px,4vw,48px);line-height:1.15;margin:8px 0 18px;letter-spacing:-.025em}
.eyebrow{color:var(--brand-dark);font-size:13px;font-weight:800;letter-spacing:.06em;text-transform:uppercase}
.standalone-article h2{font-size:28px;scroll-margin-top:20px;margin-top:42px}
.standalone-article>p:first-child{margin-top:0}
.article-neighbours{display:flex;justify-content:space-between;gap:18px;border-top:1px solid var(--line);margin-top:40px;padding-top:22px}
.article-neighbours a{color:var(--brand-dark);font-weight:800;max-width:50%}
@media(max-width:860px){.site-nav{justify-content:space-between;gap:8px}.guide-nav{flex:1 0 100%;order:4;margin:0 0 5px}.guide-nav summary{width:100%;justify-content:space-between}.guide-nav-panel{position:static;width:100%;max-height:320px;margin-top:6px;box-shadow:0 10px 24px rgba(0,0,0,.25)}.top-language-switcher{margin-left:auto!important}.toc-list{grid-template-columns:1fr}}
@media(max-width:480px){.site-nav{padding-left:16px;padding-right:16px}.nav-brand{font-size:19px}.nav-cta{padding:10px 11px;font-size:12px}.top-language-switcher{margin-right:5px}.home-toc{padding:17px}.home-toc h2{font-size:24px}.article-neighbours{flex-direction:column}.article-neighbours a{max-width:100%}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}