:root{--c-brand:#52e0d2;--c-brand-dark:#167f81;--c-accent:#fb7185;--c-background:#09151b;--c-surface:#10232c;--c-surface-alt:#18323c;--c-text:#e8f4f4;--c-muted:#9bb3ba;--c-border:#28444d;--c-success:#67d6ad;--c-warning:#ffc76a;--c-danger:#ff7a8a;--font-sans:system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;--font-mono:ui-monospace, SFMono-Regular, Menlo, monospace;--container:74rem;--reading-width:46rem;--radius:0.75rem}
:root{--s-1:.25rem;--s-2:.5rem;--s-3:.75rem;--s-4:1rem;--s-6:1.5rem;--s-8:2rem;--s-12:3rem;--fs-xs:.75rem;--fs-sm:.875rem;--fs-base:1rem;--fs-lg:1.125rem;--fs-xl:1.375rem;--fs-2xl:1.75rem;--fs-3xl:2.25rem}

*,*::before,*::after{box-sizing:border-box}body,h1,h2,h3,p{margin:0}img{display:block;max-width:100%;height:auto}button,input,select{font:inherit}button,summary{cursor:pointer}[hidden]{display:none!important}html{scroll-behavior:smooth}a{color:inherit}input,select{min-width:0} @media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important}}

body{font-family:var(--font-sans);background:var(--c-background);color:var(--c-text);font-size:1rem;line-height:1.65}a{text-decoration:none}a:hover{color:var(--c-accent)}a:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--c-accent);outline-offset:5px}.container{width:min(calc(100% - 3rem),var(--container));margin-inline:auto}main{min-height:65vh}h1,h2,h3{line-height:1.15;letter-spacing:-.035em;text-wrap:balance}h1{font-size:clamp(2.2rem,4.8vw,4.25rem);font-weight:800}h2{font-size:clamp(1.5rem,2.6vw,2rem)}h3{font-size:1.2rem}p{overflow-wrap:anywhere}.lead{color:var(--c-muted);max-width:45rem;font-size:1.1rem;line-height:1.75}.muted{color:var(--c-muted)}.eyebrow{font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.14em;font-size:.7rem;font-weight:700;color:var(--c-accent);margin-bottom:1rem}.button{display:inline-flex;align-items:center;justify-content:center;min-height:3rem;padding:.7rem 1.35rem;border:1px solid var(--c-brand);border-radius:calc(var(--radius)*.6);background:var(--c-brand);color:var(--c-background);font-weight:750;font-size:.9rem}.button:hover{background:var(--c-brand-dark);color:var(--c-text)}.button-quiet{background:var(--c-surface);color:var(--c-text);border-color:var(--c-border)}.skip-link{position:absolute;left:1rem;top:-5rem;z-index:10;padding:1rem;background:var(--c-accent);color:var(--c-background)}.skip-link:focus{top:1rem}::selection{background:var(--c-brand);color:var(--c-background)}@media(max-width:48rem){.container{width:calc(100% - 2rem)}}

.site-header{border-bottom:1px solid var(--c-border);background:var(--c-background)}.header-inner{min-height:5.2rem;display:flex;align-items:center;gap:2rem}.brand{display:flex;align-items:center;gap:.85rem;font-size:1rem;font-weight:800;letter-spacing:-.025em}.brand img{width:46px;height:46px;flex:none}.desktop-nav{margin-left:auto;display:flex;gap:1.5rem;font-size:.82rem;color:var(--c-muted);font-weight:600}.desktop-nav [aria-current]{color:var(--c-accent)}.header-external{font-size:.75rem;border-left:1px solid var(--c-border);padding-left:1.5rem;color:var(--c-muted)}.mobile-nav{display:none;margin-left:auto}.home-hero{position:relative;display:flex;align-items:center;min-height:clamp(29rem,62vh,43rem);margin-block:1.5rem 3rem;padding:clamp(2rem,7vw,6rem);border:1px solid rgba(112,207,223,.22);border-radius:calc(var(--radius)*1.35);overflow:hidden;isolation:isolate;background:#07121b}.home-hero::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,rgba(4,12,20,.96) 0%,rgba(4,12,20,.84) 37%,rgba(4,12,20,.27) 76%,rgba(4,12,20,.08) 100%),linear-gradient(0deg,rgba(4,12,20,.34),transparent 45%)}.hero-copy{position:relative;z-index:1;max-width:43rem}.hero-copy h1{max-width:39rem;margin-bottom:1.1rem;font-size:clamp(2.6rem,6vw,5.1rem);text-shadow:0 4px 30px #0008}.hero-copy .lead{max-width:34rem;color:#d0e0e7;font-size:clamp(1rem,1.6vw,1.2rem);line-height:1.7}.hero-actions{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:2rem}.hero-note{font-size:.73rem;letter-spacing:.035em;color:#c0d0d8;margin-top:1.2rem}.hero-art{position:absolute;inset:0;z-index:-2;width:100%;height:100%;border-radius:0;object-fit:cover;object-position:center 53%}.alert{display:flex;align-items:center;gap:.8rem;flex-wrap:wrap;padding:1rem 1.25rem;border:1px solid var(--c-border);border-radius:var(--radius);background:var(--c-surface);font-size:.8rem}.alert>span:not(.status-dot){color:var(--c-muted)}.alert a{margin-left:auto;text-decoration:underline;text-underline-offset:4px}.status-dot{width:.45rem;height:.45rem;border-radius:50%;background:var(--c-accent);flex:none}.alert-warning .status-dot{background:var(--c-warning)}.alert-success .status-dot{background:var(--c-success)}.home-section,.related{margin-top:3.5rem}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:1rem;margin-bottom:1.5rem}.section-heading .eyebrow{margin-bottom:.5rem}.section-heading>a{color:var(--c-muted);font-size:.8rem;white-space:nowrap}.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.25rem}.card{display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius);overflow:hidden;transition:border-color .15s}.card:hover{border-color:var(--c-accent)}.card>img{aspect-ratio:16/9;width:100%;object-fit:cover;background:var(--c-surface-alt);transition:transform .45s cubic-bezier(.2,.7,.2,1)}.card:hover>img{transform:scale(1.035)}.card-body{padding:1.4rem;display:flex;flex-direction:column;flex:1}.card-meta{font-family:var(--font-mono);font-size:.65rem;text-transform:uppercase;letter-spacing:.13em;color:var(--c-accent);margin-bottom:.6rem}.card h3{margin-bottom:.8rem}.card-excerpt{margin-bottom:1.3rem;color:var(--c-muted);font-size:.83rem;line-height:1.7}.card-date{display:flex;align-items:center;gap:.3rem;border-top:1px solid var(--c-border);margin-top:auto;padding-top:.9rem;color:var(--c-muted);font-size:.65rem}.card-date>span{margin-left:auto;color:var(--c-accent);font-size:1rem}.cta{display:flex;align-items:center;justify-content:space-between;gap:2rem;padding:2.2rem;margin-top:3rem;background:linear-gradient(110deg,var(--c-surface-alt),var(--c-surface));border:1px solid var(--c-border);border-radius:var(--radius)}.cta p:not(.eyebrow){color:var(--c-muted);font-size:.9rem;margin-top:.65rem}.cta .eyebrow{margin-bottom:.5rem}.cta .button{flex-shrink:0}.breadcrumbs{padding-block:1.7rem;font-size:.75rem;color:var(--c-muted)}.breadcrumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:.6rem;padding:0;margin:0}.breadcrumbs li+li:before{content:'/';margin-right:.6rem;color:var(--c-border)}.listing-header{padding:1.5rem 0 2.5rem}.listing-header h1{margin-bottom:1rem}.filters{display:flex;align-items:flex-end;gap:1rem;margin-bottom:.7rem}.filters label{display:grid;gap:.4rem;color:var(--c-muted);font-size:.75rem}.filters label:first-child{flex:1}.filters input,.filters select{padding:.75rem 1rem;color:var(--c-text);background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius);min-height:3rem}.filters [role=status]{font-size:.75rem;color:var(--c-muted);padding-block:.8rem}.filter-hint{font-size:.75rem;margin-bottom:1.5rem}.pagination{display:flex;justify-content:center;flex-wrap:wrap;gap:.5rem;margin-top:2.5rem}.pagination>*{padding:.5rem .9rem;border:1px solid var(--c-border);border-radius:var(--radius)}.pagination [aria-current]{background:var(--c-brand);color:var(--c-background)}.site-footer{margin-top:5rem;border-top:1px solid var(--c-border);padding-block:3rem 1.5rem}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:2rem}.footer-grid strong{font-size:1rem}.footer-grid p{color:var(--c-muted);font-size:.8rem;max-width:24rem;margin-top:.6rem}.footer-grid nav{display:flex;gap:.6rem;flex-direction:column;font-size:.8rem;color:var(--c-muted)}.footer-bottom{display:flex;justify-content:space-between;gap:1rem;margin-top:2rem;padding-top:1.5rem;border-top:1px solid var(--c-border);color:var(--c-muted);font-size:.7rem}.language-nav{display:flex;gap:1rem}.error-page{padding-block:6rem}.error-page p{margin:1rem 0 2rem}.error-page h1{max-width:45rem}@media(max-width:64rem){.header-inner{gap:1rem}.desktop-nav{gap:.8rem}.header-external{display:none}.home-hero{min-height:25rem}.card-body{padding:1rem}}@media(max-width:48rem){.desktop-nav{display:none}.mobile-nav{display:block}.mobile-nav summary{font-size:.85rem;padding:.5rem}.mobile-nav nav{position:absolute;left:1rem;right:1rem;top:4.7rem;z-index:5;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius);padding:1rem;display:grid;gap:.3rem;box-shadow:0 1rem 2rem #0005}.mobile-nav nav a{padding:.5rem}.home-hero{grid-template-columns:1fr;padding-block:2.5rem;gap:2rem}.hero-art{max-height:18rem;object-fit:cover}.hero-copy h1{max-width:35rem}.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.cta{padding:1.5rem;align-items:flex-start;flex-direction:column}.filters{flex-wrap:wrap}.filters label:first-child{flex-basis:100%}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div{grid-column:1/-1}.footer-bottom{flex-direction:column}.section-heading{align-items:center}}@media(max-width:36rem){.card-grid{grid-template-columns:1fr}.home-section{margin-top:2.5rem}.brand{font-size:.9rem}.section-heading>a{font-size:.7rem}.alert a{margin-left:1.25rem}.hero-art{max-height:15rem}}

/* Discovery surfaces: short routes, reference facts and native FAQ disclosures. */
.section-description{max-width:45rem;margin-top:.85rem;color:var(--c-muted);font-size:.95rem;line-height:1.8}
.route-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}
.route-card{display:flex;gap:1rem;align-items:flex-start;padding:1.4rem;border:1px solid var(--c-border);border-radius:var(--radius);background:var(--c-surface);transition:border-color .15s,background .15s}
.route-card:hover,.route-card:focus-visible{border-color:var(--c-accent);background:var(--c-surface-alt)}
.route-number{font-family:var(--font-mono);font-size:.7rem;color:var(--c-accent);padding-top:.25rem}
.route-card h3{font-size:1rem;margin-bottom:.4rem}.route-card p{font-size:.82rem;line-height:1.7;color:var(--c-muted)}.route-arrow{margin-left:auto;color:var(--c-accent)}
.discovery-facts{padding:2rem;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius)}
.fact-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1.5rem;margin:0;padding-top:1.5rem;border-top:1px solid var(--c-border)}
.fact-grid dt{font-size:.7rem;color:var(--c-muted);margin-bottom:.5rem;text-transform:uppercase;letter-spacing:.07em}.fact-grid dd{margin:0;font-size:.95rem;font-weight:650}
.faq-list{border-top:1px solid var(--c-border)}.faq-list details{border-bottom:1px solid var(--c-border)}.faq-list summary{padding:1.3rem .5rem;font-size:1rem;font-weight:650;cursor:pointer}.faq-list summary::marker{color:var(--c-accent)}
.faq-answer{padding:0 1.5rem 1.5rem;max-width:52rem;color:var(--c-muted);line-height:1.8;font-size:.9rem}.faq-answer a{display:inline-block;color:var(--c-accent);margin-top:.8rem;text-decoration:underline;text-underline-offset:4px}
.update-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--c-border)}.update-list li{display:grid;grid-template-columns:9rem 1fr auto;gap:1.5rem;align-items:start;border-bottom:1px solid var(--c-border);padding:1.5rem 0}.update-date{display:grid;gap:.3rem;color:var(--c-muted);font-family:var(--font-mono);font-size:.75rem}.update-date span{font-size:.65rem}.update-list h3{margin-bottom:.5rem}.update-list p{font-size:.85rem;line-height:1.7;color:var(--c-muted)}.update-list li>span{color:var(--c-accent)}
.footer-grid{grid-template-columns:1.7fr 1fr 1fr 1fr}.footer-grid nav strong{font-size:.75rem;color:var(--c-text);margin-bottom:.4rem}.mobile-nav [aria-current]{color:var(--c-accent)}
@media(max-width:48rem){.fact-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.footer-grid>div{grid-column:1/-1}.update-list li{grid-template-columns:7rem 1fr}.update-list li>span{display:none}}
@media(max-width:36rem){.route-grid{grid-template-columns:1fr}.discovery-facts{padding:1.3rem}.fact-grid{gap:1.2rem}.update-list li{grid-template-columns:1fr;gap:.7rem}.update-date{display:flex;gap:.5rem;align-items:baseline}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}

.card-grid-illustrated{grid-template-columns:repeat(4,minmax(0,1fr));gap:1rem}.card-grid-illustrated .card{border-color:rgba(112,207,223,.18);background:linear-gradient(180deg,var(--c-surface),#0b1921)}.card-grid-illustrated .card>img{aspect-ratio:4/3}.card-grid-illustrated .card-body{padding:1.15rem}.card-grid-illustrated .card-excerpt{min-height:4.4rem}.home-section:has(.card-grid-illustrated){margin-top:4rem}
@media(max-width:64rem){.card-grid-illustrated{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:36rem){.home-hero{min-height:32rem;padding:1.6rem}.hero-art{object-position:58% center}.home-section:has(.card-grid-illustrated){margin-top:2.5rem}.card-grid-illustrated{grid-template-columns:repeat(2,minmax(0,1fr));gap:.7rem}.card-grid-illustrated .card-body{padding:.85rem}.card-grid-illustrated .card h3{font-size:1rem}.card-grid-illustrated .card-excerpt{min-height:0;font-size:.74rem;line-height:1.55}}

.article-header{padding:1rem 0 2rem;max-width:54rem}.article-header h1{font-size:clamp(2.1rem,4vw,3.5rem);margin-bottom:1rem}.article-meta{display:flex;flex-wrap:wrap;gap:1rem;color:var(--c-muted);font-size:.75rem;margin-top:1.5rem;align-items:center}.version{padding:.15rem .6rem;border:1px solid var(--c-border);border-radius:var(--radius);color:var(--c-accent);font-family:var(--font-mono)}.article-layout{display:grid;grid-template-columns:minmax(0,var(--reading-width)) minmax(12rem,1fr);gap:3rem;align-items:start}.article-body{min-width:0;overflow-wrap:anywhere}.article-body p,.article-body ul,.article-body ol{margin-block:1rem;color:var(--c-muted)}.article-body a{text-decoration:underline;text-underline-offset:4px;color:var(--c-accent)}.article-body h2{margin-top:2.7rem;margin-bottom:1rem}.article-body h3{margin-top:2rem}.article-body h2,.article-body h3{scroll-margin-top:2rem}.article-body strong{color:var(--c-text)}.article-body blockquote{margin:1.5rem 0;padding:.3rem 1.3rem;border-left:3px solid var(--c-accent);background:var(--c-surface)}.article-image{width:100%;max-height:25rem;object-fit:cover;border-radius:var(--radius);margin-block:1.5rem}.quick-answer{max-width:var(--reading-width);margin-bottom:1.5rem;padding:1.4rem;background:var(--c-surface-alt);border-left:3px solid var(--c-accent);border-radius:0 var(--radius) var(--radius) 0;font-size:1rem}.toc{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius);padding:1.3rem}.toc summary{font-size:.85rem;font-weight:700}.toc ol{padding-left:1.2rem;margin-bottom:0;font-size:.8rem;color:var(--c-muted)}.toc li{padding-block:.3rem}.toc-level-3{margin-left:.8rem}.article-sidebar{position:sticky;top:2rem}.table-scroll{overflow-x:auto;margin-block:1.5rem;border:1px solid var(--c-border);border-radius:var(--radius)}table{border-collapse:collapse;width:100%;font-size:.85rem}th,td{text-align:left;padding:.8rem 1rem;border-bottom:1px solid var(--c-border);min-width:7rem}th{background:var(--c-surface-alt)}td{color:var(--c-muted)}tr:last-child td{border:0}pre{overflow:auto;padding:1rem;background:var(--c-surface);border-radius:var(--radius)}code{font-family:var(--font-mono);font-size:.85em}@media(max-width:64rem){.article-layout{gap:1.5rem}}@media(max-width:48rem){.article-layout{display:flex;flex-direction:column}.article-sidebar{order:-1;position:static;width:100%}.article-body{width:100%}.article-header{padding-top:.5rem}.article-meta{gap:.5rem 1rem}}

.card{position:relative}
.card h2{margin-bottom:.8rem}
.card :is(h2,h3) a::after{content:"";position:absolute;inset:0}
.card :is(h2,h3) a:focus-visible::after{outline:2px solid var(--c-accent);outline-offset:-3px;border-radius:var(--radius)}
.search-page{padding-bottom:2rem}
.search-page .filters{max-width:44rem}
.search-page .filters label{flex:1}
.search-results{display:grid;gap:.8rem}
.search-hit{position:relative;padding:1.2rem 1.4rem;border:1px solid var(--c-border);border-radius:var(--radius);background:var(--c-surface)}
.search-hit:hover,.search-hit:focus-within{border-color:var(--c-accent)}
.search-hit h2{font-size:1.15rem;margin:.4rem 0}
.search-hit h2 a::after{content:"";position:absolute;inset:0}
.search-hit h2 a:focus-visible::after{outline:2px solid var(--c-accent);outline-offset:-3px}
.search-hit p{color:var(--c-muted);font-size:.85rem}
.search-fallback{margin-top:2.5rem}
.search-fallback h2{font-size:1.25rem}
.search-fallback ul{display:flex;flex-wrap:wrap;gap:.5rem 1.5rem;margin-top:1rem;padding-left:1.2rem}
.search-page [data-search-more]{margin-top:1.5rem}

@media(max-width:64rem){
  .desktop-nav{display:none}
  .mobile-nav{display:block}
  .mobile-nav summary{font-size:.85rem;padding:.5rem}
  .mobile-nav nav{position:absolute;left:1rem;right:1rem;top:4.7rem;z-index:5;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius);padding:1rem;display:grid;gap:.3rem;box-shadow:0 1rem 2rem #0005}
  .mobile-nav nav a{padding:.5rem}
}