/* tramway-chatillon-viroflay.fr — « la ligne de nuit » */
@font-face{font-family:"Unbounded";src:url(/assets/fonts/Unbounded.woff2) format("woff2");font-weight:400 800;font-display:swap}
@font-face{font-family:"Plex";src:url(/assets/fonts/PlexSans.woff2) format("woff2");font-weight:100 700;font-display:swap}
@font-face{font-family:"Plex";src:url(/assets/fonts/PlexSans-Italic.woff2) format("woff2");font-style:italic;font-weight:400;font-display:swap}
@font-face{font-family:"PlexMono";src:url(/assets/fonts/PlexMono.woff2) format("woff2");font-weight:500;font-display:swap}
@view-transition{navigation:auto}

:root{
  --bg:#f3f1ec;--surface:#fff;--surface-2:#ebe8e1;--ink:#0d1117;--ink-2:#3a434d;--muted:#66707b;--rule:#dcd8cf;
  --accent:#e1343a;--accent-ink:#b4222a;--accent-soft:#fbe3e3;--teal:#00877d;--teal-soft:#d8efec;
  --night:#0a0e13;--night-2:#111820;--card:#0a0e13;--night-ink:#eef2f5;--night-muted:#95a1ad;
  --soil-1:#d9cdb8;--soil-2:#a8916e;
  --r:18px;--r-s:10px;--sh:0 1px 2px rgba(10,14,19,.06),0 12px 32px -12px rgba(10,14,19,.18);
  --f-d:"Unbounded",system-ui,sans-serif;--f-b:"Plex",system-ui,-apple-system,"Segoe UI",sans-serif;--f-m:"PlexMono",ui-monospace,monospace;
  --gut:16px;color-scheme:light;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0b0f14;--card:#1a2430;--surface:#121921;--surface-2:#18212b;--ink:#eef1f4;--ink-2:#c5ccd4;--muted:#8d98a4;--rule:#25303b;
  --accent:#ff5a5f;--accent-ink:#ff8085;--accent-soft:#3a1719;--teal:#33c7b8;--teal-soft:#0f2f2c;--soil-1:#3b3328;--soil-2:#2a231b;
  --sh:0 1px 2px rgba(0,0,0,.3),0 16px 40px -16px rgba(0,0,0,.6);color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#0b0f14;--card:#1a2430;--surface:#121921;--surface-2:#18212b;--ink:#eef1f4;--ink-2:#c5ccd4;--muted:#8d98a4;--rule:#25303b;
  --accent:#ff5a5f;--accent-ink:#ff8085;--accent-soft:#3a1719;--teal:#33c7b8;--teal-soft:#0f2f2c;--soil-1:#3b3328;--soil-2:#2a231b;
  --sh:0 1px 2px rgba(0,0,0,.3),0 16px 40px -16px rgba(0,0,0,.6);color-scheme:dark}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:90px}
body{margin:0;background:var(--bg);color:var(--ink);font:400 1.0625rem/1.68 var(--f-b);overflow-x:hidden;text-rendering:optimizeLegibility}
@media (min-width:900px){body{font-size:1.125rem}:root{--gut:32px}}
img,svg{max-width:100%;height:auto;display:block}
a{color:inherit}
.wrap{width:min(1200px,100% - 2*var(--gut));margin-inline:auto}
.skip{position:absolute;left:-999px;top:8px;z-index:99;background:var(--ink);color:var(--bg);padding:8px 14px;border-radius:8px}
.skip:focus{left:8px}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:4px}
h1,h2,h3{font-family:var(--f-d);letter-spacing:-.02em;line-height:1.12;margin:0}

/* ---------- en-tête ---------- */
.roundel{display:inline-grid;place-items:center;width:2.1em;height:2.1em;border-radius:.6em;background:var(--accent);color:#fff;font:700 .78rem/1 var(--f-d);letter-spacing:-.02em;flex:none}
.hd{position:fixed;inset:0 0 auto;z-index:50;color:#fff;transition:background .3s,color .3s,box-shadow .3s}
.hd-in{display:flex;align-items:center;gap:18px;height:64px;width:min(1200px,100% - 2*var(--gut));margin-inline:auto}
.hd.is-solid{background:color-mix(in srgb,var(--bg) 84%,transparent);backdrop-filter:blur(14px) saturate(1.4);-webkit-backdrop-filter:blur(14px) saturate(1.4);color:var(--ink);box-shadow:0 1px 0 var(--rule)}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;margin-right:auto}
.brand .roundel{font-size:.9rem}
.brand-t{display:flex;align-items:center;gap:8px;font:600 .82rem/1 var(--f-d)}
.brand-t i{width:26px;height:3px;border-radius:3px;background:currentColor;position:relative;opacity:.7}
.brand-t i::before,.brand-t i::after{content:"";position:absolute;top:-3px;width:9px;height:9px;border-radius:50%;background:var(--accent)}
.brand-t i::before{left:-4px}.brand-t i::after{right:-4px}
.nav{display:flex;gap:4px}
.nav a{text-decoration:none;font:500 .95rem/1 var(--f-b);padding:10px 14px;border-radius:999px;transition:background .2s}
.nav a:hover{background:color-mix(in srgb,currentColor 12%,transparent)}
.nav a.on{background:color-mix(in srgb,currentColor 14%,transparent)}
.theme{width:38px;height:38px;border-radius:50%;border:1px solid color-mix(in srgb,currentColor 30%,transparent);background:none;color:inherit;cursor:pointer;display:grid;place-items:center}
.theme span{width:14px;height:14px;border-radius:50%;box-shadow:inset -5px -3px 0 0 currentColor;transform:rotate(-20deg)}
.hd-prog{position:absolute;left:0;right:0;bottom:-1px;height:3px}
.hd-prog i{position:absolute;inset:0 auto 0 0;width:var(--p,0%);background:var(--accent)}
.hd-prog b{position:absolute;top:-4px;left:var(--p,0%);width:11px;height:11px;border-radius:50%;background:#fff;border:3px solid var(--accent);transform:translateX(-50%);opacity:0;transition:opacity .3s}
.hd.is-solid .hd-prog b{opacity:1}
@media (max-width:760px){
  .nav{position:fixed;left:var(--gut);right:var(--gut);bottom:12px;justify-content:space-between;padding:6px;border-radius:999px;background:color-mix(in srgb,var(--night) 88%,transparent);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);color:#fff;box-shadow:0 10px 30px rgba(0,0,0,.35)}
  .nav a{font-size:.85rem;padding:10px 12px;flex:1;text-align:center}
  .brand-t{font-size:.72rem}.brand-t i{width:16px}
  body{padding-bottom:76px}
  .hd.is-solid{backdrop-filter:none;-webkit-backdrop-filter:none;background:var(--bg)}
}

/* ---------- bandeaux ---------- */
.hero{position:relative;min-height:min(70vh,640px);display:flex;align-items:flex-end;color:#fff;background:var(--night);isolation:isolate;overflow:hidden}
.hero-s{min-height:min(46vh,420px)}
.hero-bg{position:absolute;inset:0;z-index:-1}
.hero-bg picture,.hero-bg img{width:100%;height:100%;object-fit:cover}
.hero-bg img{transform:scale(1.06);animation:heroZoom 14s ease-out forwards;view-transition-name:hero-img}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,14,19,.55) 0%,rgba(10,14,19,.15) 35%,rgba(10,14,19,.86) 88%,var(--night) 100%)}
@keyframes heroZoom{to{transform:scale(1)}}
.hero-grid{padding:120px 0 56px}
.hero-txt{max-width:900px}
.kicker{display:inline-flex;align-items:center;gap:10px;margin:0 0 18px;font:500 .95rem/1.2 var(--f-b);padding:6px 14px 6px 6px;border-radius:999px;background:rgba(255,255,255,.12);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.18)}
.hero h1{font-size:clamp(2rem,5.4vw,4.4rem);font-weight:700;text-wrap:balance;text-shadow:0 2px 30px rgba(0,0,0,.4)}
.hero-credit{position:absolute;right:var(--gut);bottom:8px;margin:0;font-size:.7rem;opacity:.65}
.hero-credit a{color:inherit}

.hero-home{min-height:100svh;align-items:center}
.hero-home .hero-bg::after{background:radial-gradient(120% 90% at 75% 40%,rgba(10,14,19,.35),rgba(10,14,19,.9) 70%),linear-gradient(180deg,rgba(10,14,19,.4),var(--night))}
.hero-home .hero-grid{display:grid;grid-template-columns:1fr;gap:24px;align-items:center;padding:110px 0 90px}
@media (min-width:1000px){.hero-home .hero-grid{grid-template-columns:1.05fr 1fr;gap:40px}}
.hero-home h1{font-size:clamp(2.2rem,4.6vw,4.1rem);line-height:1.04}
.hero-sub{font-size:clamp(1.05rem,1.6vw,1.3rem);max-width:34ch;margin:22px 0 30px;color:#dfe6ec}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 22px;border-radius:999px;font:600 1rem/1 var(--f-b);text-decoration:none;cursor:pointer;border:0;transition:transform .2s,box-shadow .2s,background .2s}
.btn:hover{transform:translateY(-2px)}
.btn-a{background:var(--accent);color:#fff;box-shadow:0 10px 30px -8px rgba(225,52,58,.6)}
.btn-g{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.3);backdrop-filter:blur(8px)}
.hero-map{position:relative}
.hr-svg{width:100%;overflow:visible;filter:drop-shadow(0 0 22px rgba(255,90,95,.25))}
.hr-glow{fill:none;stroke:rgba(255,90,95,.25);stroke-width:18;stroke-linecap:round;stroke-linejoin:round}
.hr-line{fill:none;stroke:#ff5a5f;stroke-width:6;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:1000;stroke-dashoffset:1000;animation:draw 2.6s cubic-bezier(.6,.1,.2,1) .3s forwards}
.hr-under{fill:none;stroke:#0a0e13;stroke-width:3;stroke-dasharray:4 7;opacity:0;animation:fade .6s 2.8s forwards}
.hr-st{fill:#fff;stroke:#ff5a5f;stroke-width:2.5;opacity:0;animation:pop .4s calc(.3s + var(--i)*.11s) forwards}
.hr-t{stroke-width:4}
.hr-lab{fill:#fff;font:600 21px var(--f-b);opacity:0;animation:fade .6s 2.4s forwards;paint-order:stroke;stroke:rgba(10,14,19,.7);stroke-width:5px}
.hr-lab-s{font-size:17px;font-weight:500;fill:#cfd8df}
.hr-tram{fill:#2ec4b6;stroke:#fff;stroke-width:3;opacity:0}
.hr-cap{margin:6px 0 0;text-align:right;font-size:.8rem;color:#9aa6b2}
@keyframes draw{to{stroke-dashoffset:0}}
@keyframes fade{to{opacity:1}}
@keyframes pop{from{opacity:0;transform:scale(.2)}to{opacity:1;transform:scale(1)}}
.hr-st{transform-box:fill-box;transform-origin:center}
.hero-scroll{position:absolute;left:50%;bottom:22px;width:28px;height:44px;border:2px solid rgba(255,255,255,.5);border-radius:20px;transform:translateX(-50%)}
.hero-scroll span{position:absolute;left:50%;top:8px;width:4px;height:8px;border-radius:2px;background:#fff;transform:translateX(-50%);animation:sc 1.8s infinite}
@keyframes sc{0%{opacity:0;top:6px}40%{opacity:1}100%{opacity:0;top:24px}}
@media (max-width:999px){.hero-map{max-width:560px}.hero-scroll{display:none}}

/* ---------- article ---------- */
.page-meta{display:flex;flex-wrap:wrap;justify-content:space-between;gap:6px 20px;align-items:center;padding:18px 0 0}
.crumbs ol{display:flex;flex-wrap:wrap;gap:4px 0;margin:0;padding:0;list-style:none;font-size:.9rem;color:var(--muted)}
.crumbs li+li::before{content:"";display:inline-block;width:18px;height:2px;background:var(--rule);margin:0 8px;vertical-align:middle}
.crumbs a{text-decoration:none}.crumbs a:hover{color:var(--accent-ink)}
.crumbs [aria-current]{color:var(--ink)}
.upd{margin:0;font-size:.85rem;color:var(--muted)}
.art-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:24px;padding:28px 0 40px}
@media (min-width:1100px){.art-grid{grid-template-columns:250px minmax(0,740px);gap:72px;justify-content:center}.art-solo{grid-template-columns:minmax(0,740px)}}
.art{min-width:0}
.art>*{margin-top:0}
.lead{font-size:1.18em;line-height:1.62;color:var(--ink-2)}
.lead p:first-child::first-letter{font:700 2.45em/.9 var(--f-d);float:left;margin:.06em .12em 0 0;color:var(--accent)}
.art p{margin:0 0 1.05em}
.art h2{font-size:clamp(1.45rem,2.6vw,2rem);font-weight:600;margin:2.2em 0 .7em;padding-top:.2em;position:relative}
.art h2::before{content:"";display:block;width:44px;height:6px;border-radius:6px;background:var(--accent);margin-bottom:.7em}
.art h3{font-size:clamp(1.08rem,1.7vw,1.28rem);font-weight:600;margin:1.8em 0 .5em}
.art ul,.art ol:not([class]){padding-left:1.2em;margin:0 0 1.1em}
.art li{margin:.3em 0}
.art li::marker{color:var(--accent)}
.art a{text-decoration-color:color-mix(in srgb,var(--accent) 55%,transparent);text-decoration-thickness:2px;text-underline-offset:3px}
.art a:hover{color:var(--accent-ink)}
.art a.in{font-weight:500}
.ref a{text-decoration:none;font:600 .68em/1 var(--f-m);color:var(--teal);padding:0 .2em}
.art strong{font-weight:600}

.answer{background:var(--surface);border-radius:var(--r);padding:22px 24px;margin:0 0 28px;box-shadow:var(--sh);border-left:6px solid var(--accent)}
.answer p{margin:0}
.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin:0 0 32px}
.fact{background:var(--card);color:var(--night-ink);border-radius:var(--r);padding:20px 18px;position:relative;overflow:hidden}
.fact::after{content:"";position:absolute;right:-42px;bottom:-42px;width:96px;height:96px;border-radius:50%;border:10px solid rgba(255,90,95,.16)}
.fact b{display:block;font:700 clamp(1.35rem,2.4vw,1.8rem)/1.05 var(--f-d);white-space:nowrap;color:#fff;margin-bottom:8px;font-variant-numeric:tabular-nums}
.fact span{font-size:.92rem;color:var(--night-muted);line-height:1.4;display:block}
.note{background:var(--teal-soft);border-radius:var(--r);padding:20px 24px;margin:28px 0}
.note>*:last-child{margin-bottom:0}
.note h3{margin-top:0;font-size:1.05rem}
.note-local{background:var(--surface);box-shadow:var(--sh);border-top:5px solid var(--teal)}
.tbl-wrap{overflow-x:auto;margin:0 0 1.4em;border-radius:var(--r-s);border:1px solid var(--rule);background:var(--surface);-webkit-overflow-scrolling:touch}
.tbl{border-collapse:collapse;width:100%;font-size:.94rem;min-width:520px}
.tbl th,.tbl td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--rule);vertical-align:top}
.tbl thead th{background:var(--surface-2);font-weight:600;font-size:.85rem;text-transform:uppercase;letter-spacing:.04em;color:var(--ink-2)}
.tbl tbody tr:last-child>*{border-bottom:0}
.tbl tbody tr:hover{background:color-mix(in srgb,var(--accent) 5%,transparent)}
.steps{counter-reset:s;list-style:none;padding:0;margin:0 0 1.4em}
.steps li{counter-increment:s;position:relative;padding:0 0 18px 56px;margin:0}
.steps li::before{content:counter(s);position:absolute;left:0;top:0;width:38px;height:38px;border-radius:50%;background:var(--accent);color:#fff;display:grid;place-items:center;font:700 .95rem var(--f-d)}
.steps li:not(:last-child)::after{content:"";position:absolute;left:18px;top:40px;bottom:2px;width:3px;background:var(--rule)}
.fig{margin:2em 0;border-radius:var(--r);overflow:hidden;background:var(--surface);box-shadow:var(--sh)}
.fig img{width:100%;transition:transform .8s}
.fig:hover img{transform:scale(1.025)}
.fig figcaption{padding:12px 18px 14px;font-size:.92rem;color:var(--ink-2)}
.credit{display:block;font-size:.76rem;color:var(--muted);margin-top:3px}
.credit a{color:inherit}
img.legacy{border-radius:var(--r);width:100%}
.faq{display:grid;gap:10px;margin:0 0 1em}
.faq details{background:var(--surface);border-radius:var(--r-s);box-shadow:var(--sh);overflow:hidden}
.faq summary{cursor:pointer;list-style:none;padding:16px 52px 16px 20px;font-weight:600;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";position:absolute;right:20px;top:50%;width:12px;height:12px;border-right:3px solid var(--accent);border-bottom:3px solid var(--accent);transform:translateY(-70%) rotate(45deg);transition:transform .25s}
.faq details[open] summary::after{transform:translateY(-30%) rotate(225deg)}
.faq details>*:not(summary){padding:0 20px;margin-bottom:16px}
.video{position:relative;aspect-ratio:16/9;border-radius:var(--r);overflow:hidden;margin:1.5em 0;background:#000}
.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.art figure:not(.fig):not(.widget){margin:1.5em 0}.art figure img{border-radius:var(--r)}
.sources{margin-top:3em;padding-top:1.5em;border-top:1px solid var(--rule);font-size:.88rem;color:var(--ink-2)}
.sources-t{font-size:1rem!important;margin:0 0 .8em!important}.sources-t::before{display:none!important}
.sources ol{padding-left:1.4em}.sources li{margin:.35em 0;word-break:break-word}
.sources li:target{background:var(--accent-soft);border-radius:6px}
.disc{margin-top:1em;color:var(--muted);font-size:.85rem}
.credits li{margin:.5em 0;font-size:.95rem}
.lead-p{font-size:1.3rem}

/* ---------- sommaire « ligne » ---------- */
.toc{position:relative}
@media (min-width:1100px){.toc details{position:sticky;top:96px}}
.toc details{background:var(--surface);border-radius:var(--r);padding:16px 18px;box-shadow:var(--sh)}
.toc summary{font:600 .8rem/1 var(--f-d);text-transform:uppercase;letter-spacing:.06em;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:8px;color:var(--muted)}
.toc summary::-webkit-details-marker{display:none}
.toc summary span{text-transform:none;letter-spacing:0;font:500 .82rem var(--f-b);color:var(--accent-ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:60%}
@media (min-width:1100px){.toc summary span{display:none}}
.toc ol{list-style:none;margin:14px 0 0;padding:0;position:relative}
.toc ol::before{content:"";position:absolute;left:6px;top:10px;bottom:10px;width:3px;border-radius:3px;background:var(--rule)}
.toc li{margin:0}
.toc a{display:flex;gap:12px;align-items:flex-start;padding:6px 0;text-decoration:none;font-size:.88rem;line-height:1.35;color:var(--ink-2);position:relative}
.toc a i{flex:none;width:15px;height:15px;margin-top:2px;border-radius:50%;background:var(--surface);border:3px solid var(--rule);position:relative;z-index:1;transition:all .25s}
.toc a.is-past i{border-color:var(--accent);background:var(--accent)}
.toc a.is-on{color:var(--ink);font-weight:600}
.toc a.is-on i{border-color:var(--accent);background:#fff;box-shadow:0 0 0 5px var(--accent-soft);transform:scale(1.15)}

/* ---------- prochain arrêt ---------- */
.ns{position:relative;padding:10px 0 70px}
.ns-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;position:relative}
.ns-card{position:relative;display:flex;flex-direction:column;gap:8px;padding:22px 56px 22px 22px;border-radius:var(--r);background:var(--card);color:#fff;text-decoration:none;overflow:hidden;transition:transform .25s,box-shadow .25s}
.ns-card::before{content:"";position:absolute;left:22px;right:22px;bottom:0;height:4px;border-radius:4px 4px 0 0;background:var(--accent);transform:scaleX(.18);transform-origin:left;transition:transform .45s}
.ns-card:hover{transform:translateY(-4px);box-shadow:0 20px 40px -18px rgba(10,14,19,.6)}
.ns-card:hover::before{transform:scaleX(1)}
.ns-lab{font:600 .72rem/1 var(--f-d);text-transform:uppercase;letter-spacing:.08em;color:#ff8a8e}
.ns-card b{font:600 1.05rem/1.3 var(--f-d)}
.ns-go{position:absolute;right:20px;top:50%;transform:translateY(-50%);font-size:1.5rem;transition:transform .25s}
.ns-card:hover .ns-go{transform:translate(5px,-50%)}

/* ---------- widgets ---------- */
.widget{background:var(--surface);border-radius:calc(var(--r) + 4px);padding:22px;margin:30px 0;box-shadow:var(--sh);position:relative}
@media (min-width:700px){.widget{padding:28px}}
.w-head{margin-bottom:16px}
.w-tag{display:inline-block;font:600 .68rem/1 var(--f-d);text-transform:uppercase;letter-spacing:.1em;color:var(--teal);margin-bottom:8px}
.art .w-title,.w-title{font:600 clamp(1.1rem,2vw,1.35rem)/1.2 var(--f-d);margin:0}
.w-sub{margin:.4em 0 0!important;color:var(--ink-2);font-size:.95rem}
.w-note{margin:14px 0 0!important;font-size:.8rem!important;color:var(--muted);line-height:1.5}
.w-note a{color:inherit}
.bx{display:inline-grid;place-items:center;min-width:2.2em;height:1.6em;padding:0 .45em;border-radius:.45em;font:700 .66rem/1 var(--f-d);color:#fff;background:#3b4a5a;margin-left:4px;vertical-align:middle;letter-spacing:0}
.bx-m13{background:#6b8fb3}.bx-t10{background:#5f6b2d}.bx-rerc{background:#b9933a}.bx-n{background:#2e8b6f}.bx-l{background:#7a6aa8}
select,input,button{font:inherit;color:inherit}
.btn-ic{width:42px;height:42px;border-radius:50%;border:1px solid var(--rule);background:var(--surface);cursor:pointer;font-size:1.1rem}
.btn-ic:hover{border-color:var(--accent);color:var(--accent-ink)}
.art .btn{color:#fff;text-decoration:none}
.w-carte .btn{background:var(--ink);color:var(--bg)}

/* trajet */
.tr-form{display:grid;grid-template-columns:1fr auto 1fr;gap:10px;align-items:end}
.tr-form label{display:grid;gap:6px;font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}
.tr-form select{appearance:none;width:100%;padding:13px 38px 13px 14px;border-radius:12px;border:1px solid var(--rule);background:var(--bg) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23e1343a' stroke-width='2'/%3E%3C/svg%3E") no-repeat right 14px center;font-size:1rem;text-transform:none;letter-spacing:0;font-weight:500;color:var(--ink);cursor:pointer}
.tr-swap{width:46px;height:46px;border-radius:50%;border:0;background:var(--accent);color:#fff;font-size:1.2rem;cursor:pointer;transition:transform .3s}
.tr-swap:hover{transform:rotate(180deg)}
@media (max-width:560px){.tr-form{grid-template-columns:1fr}.tr-swap{justify-self:center;transform:rotate(90deg)}.tr-swap:hover{transform:rotate(270deg)}}
.tr-out{display:grid;grid-template-columns:auto 1fr;gap:6px 22px;align-items:center;margin-top:20px;padding:18px 20px;border-radius:16px;background:var(--card);color:#fff}
.tr-big{display:flex;align-items:baseline;gap:8px;grid-row:span 2}
.tr-big b{font:700 clamp(2.4rem,6vw,3.4rem)/1 var(--f-d);color:#ff6b70;font-variant-numeric:tabular-nums}
.tr-big span{color:var(--night-muted);font-size:.9rem}
.tr-meta{display:flex;flex-wrap:wrap;gap:6px 14px;font-size:.92rem;color:#dbe3ea}
.tr-meta .bx{margin-left:2px}
.tr-track{height:6px;border-radius:6px;background:rgba(255,255,255,.12);position:relative;overflow:hidden}
.tr-track i{position:absolute;top:0;bottom:0;left:var(--a,0%);width:var(--w,0%);background:linear-gradient(90deg,#ff5a5f,#2ec4b6);border-radius:6px;transition:left .5s,width .5s}

/* ligne */
.ln-scroll{overflow-x:auto;padding:30px 4px 12px;margin:0 -4px;scrollbar-width:thin;-webkit-overflow-scrolling:touch}
.ln{list-style:none;display:flex;margin:0;padding:0 8px;min-width:max-content}
.ln-st{position:relative;width:62px;flex:none}
.ln-st::before{content:"";position:absolute;top:14px;left:-31px;width:62px;height:6px;background:var(--accent)}
.ln-st:first-child::before{display:none}
.ln-st.is-under::before{background:repeating-linear-gradient(90deg,var(--accent) 0 8px,transparent 8px 13px)}
.ln-st button{all:unset;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:10px;width:62px;position:relative}
.ln-st button i{width:22px;height:22px;border-radius:50%;background:var(--surface);border:5px solid var(--accent);position:relative;z-index:1;transition:transform .2s,background .2s}
.ln-st.is-term button i{width:28px;height:28px;margin-top:-3px;background:var(--ink)}
.ln-st button span:not(.bx){writing-mode:vertical-rl;transform:rotate(180deg);font-size:.82rem;font-weight:500;white-space:nowrap;color:var(--ink-2);order:3}
.ln-st button .bx{margin:0;order:2;font-size:.56rem;min-width:0}
.ln-st button:hover i,.ln-st button:focus-visible i,.ln-st.is-sel button i{transform:scale(1.35);background:var(--accent)}
.ln-st.is-sel button span:not(.bx){color:var(--ink);font-weight:700}
.ln-card{margin-top:10px;min-height:112px;padding:18px 20px;border-radius:16px;background:var(--card);color:#fff;display:grid;gap:4px}
.ln-card h4{margin:0;font:600 1.15rem/1.2 var(--f-d)}
.ln-card p{margin:0!important;color:#cdd6de;font-size:.95rem}
.ln-card .lc-m{color:#ff8a8e;font:500 .9rem var(--f-m)}

/* stations d'une commune */
.vs{list-style:none;margin:0;padding:0;position:relative}
.vs-st{display:grid;grid-template-columns:28px 1fr;gap:14px;position:relative;padding-bottom:20px}
.vs-st::before{content:"";position:absolute;left:11px;top:6px;bottom:-6px;width:6px;background:var(--accent)}
.vs-st:last-child::before{bottom:auto;height:0}
.vs-st.is-under::before{background:repeating-linear-gradient(180deg,var(--accent) 0 8px,transparent 8px 13px)}
.vs-dot{width:28px;height:28px;border-radius:50%;background:var(--surface);border:6px solid var(--accent);position:relative;z-index:1}
.vs-body h3{margin:.1em 0 .3em!important;font-size:1.1rem}
.vs-meta{display:flex;flex-wrap:wrap;gap:4px 8px;margin:0 0 .4em!important}
.vs-meta span{font-size:.8rem;padding:3px 9px;border-radius:999px;background:var(--surface-2);color:var(--ink-2)}
.vs-body p:last-child{margin:0;font-size:.95rem;color:var(--ink-2)}

/* carte */
.map{height:min(68vh,560px);border-radius:16px;overflow:hidden;background:var(--surface-2);z-index:0}
.map-tools{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;margin-top:14px}
.map-out{margin:0!important;font-size:.95rem}
.leaflet-container{font:inherit}
.leaflet-tooltip.t6-tip{font:600 .82rem var(--f-b);border-radius:8px;border:0;box-shadow:var(--sh);padding:6px 10px}
.leaflet-popup-content{font:.92rem/1.45 var(--f-b);margin:12px 16px}
.leaflet-popup-content b{font-family:var(--f-d);font-size:1rem}
:root[data-theme="dark"] .leaflet-tile-pane,:root:not([data-theme="light"]) .is-dark-map .leaflet-tile-pane{filter:invert(1) hue-rotate(180deg) brightness(.85) contrast(.9) saturate(.6)}

/* service */
.w-service{display:grid;grid-template-columns:auto 1fr;gap:6px 18px;align-items:center;background:var(--card);color:#fff}
.w-service .w-note{grid-column:1/-1;color:var(--night-muted)}
.w-service .w-tag{color:#6fe0d4}
.sv-pulse{width:22px;height:22px;border-radius:50%;background:#2ec4b6;box-shadow:0 0 0 0 rgba(46,196,182,.6);animation:pulse 2s infinite}
.w-service.is-off .sv-pulse{background:#6b7480;animation:none}
@keyframes pulse{70%{box-shadow:0 0 0 18px rgba(46,196,182,0)}100%{box-shadow:0 0 0 0 rgba(46,196,182,0)}}
.sv-status{font:600 clamp(1.1rem,2.4vw,1.5rem)/1.25 var(--f-d);margin:0!important}
.sv-detail{margin:.3em 0 0!important;color:#cfd8df}

/* fréquences */
.fq-tabs{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:16px}
.fq-tabs button{border:1px solid var(--rule);background:var(--bg);padding:9px 14px;border-radius:999px;cursor:pointer;font-size:.88rem;font-weight:500}
.fq-tabs button[aria-selected="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.fq-row{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.fq-c{display:grid;grid-template-columns:minmax(110px,32%) 1fr;grid-template-rows:auto auto;column-gap:14px;align-items:center;padding:4px 0}
.fq-slot{font-size:.9rem;color:var(--ink-2);grid-row:span 2}
.fq-c b{font:500 .95rem var(--f-m)}
.fq-c i{display:block;height:10px;border-radius:10px;width:var(--w);background:var(--teal);opacity:.35;transition:width .6s}
.fq-c.fq-4 i{opacity:1}.fq-c.fq-3 i{opacity:.78}.fq-c.fq-2 i{opacity:.55}
.fq-table{margin-top:14px;font-size:.9rem}
.fq-table summary{cursor:pointer;color:var(--accent-ink);font-weight:500}
.fq-table .tbl-wrap{margin-top:10px}

/* titre */
.ti-range{display:grid;gap:10px;margin-bottom:16px}
.ti-range span{font-size:1rem}.ti-range b{font:700 1.6rem var(--f-d);color:var(--accent-ink)}
input[type=range]{width:100%;accent-color:var(--accent);height:28px}
.ti-list{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.ti-list li{display:grid;grid-template-columns:1fr auto;gap:4px 12px;align-items:center;padding:14px 16px;border-radius:14px;background:var(--bg);border:2px solid transparent;transition:border-color .3s,background .3s}
.ti-list li.is-best{border-color:var(--teal);background:var(--teal-soft)}
.ti-list li b{font:500 1.15rem var(--f-m)}
.ti-list li small{grid-column:1/-1;color:var(--muted);font-size:.82rem}
.ti-list li em{font-style:normal;font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:#fff;background:var(--teal);padding:3px 8px;border-radius:999px;margin-left:8px}

/* frise */
.fr-nav{display:flex;align-items:center;gap:12px;margin-bottom:10px}
.fr-prog{flex:1;height:4px;border-radius:4px;background:var(--rule);overflow:hidden}
.fr-prog i{display:block;height:100%;width:var(--p,10%);background:var(--accent);transition:width .3s}
.fr{list-style:none;display:flex;gap:14px;overflow-x:auto;scroll-snap-type:x mandatory;margin:0;padding:6px 2px 14px;scrollbar-width:none}
.fr::-webkit-scrollbar{display:none}
.fr-it{flex:0 0 min(78%,250px);scroll-snap-align:start;background:var(--card);color:#fff;border-radius:16px;padding:20px;position:relative}
.fr-it::after{content:"";position:absolute;left:20px;right:-14px;top:52px;height:3px;background:var(--accent);opacity:.5}
.fr-it:last-child::after{display:none}
.fr-it.is-future{background:var(--surface-2);color:var(--ink);border:2px dashed var(--rule)}
.fr-y{display:block;font:700 1.7rem/1 var(--f-d);color:#ff6b70;margin-bottom:22px}
.fr-it.is-future .fr-y{color:var(--accent-ink)}
.fr-it b{display:block;font-size:1rem;margin-bottom:6px}
.fr-it p{margin:0!important;font-size:.88rem;line-height:1.5;opacity:.85}

/* financement */
.fn{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.fn-r{display:grid;grid-template-columns:minmax(120px,30%) 1fr auto;gap:12px;align-items:center;cursor:default;border-radius:10px;padding:4px 6px;margin:0 -6px}
.fn-r:hover,.fn-r:focus-visible{background:var(--surface-2)}
.fn-n{font-size:.92rem;color:var(--ink-2)}
.fn-bar{height:22px;position:relative}
.fn-bar i{position:absolute;left:0;top:0;bottom:0;width:0;border-radius:0 4px 4px 0;background:var(--accent);transition:width 1s cubic-bezier(.2,.8,.2,1)}
.w-fin.is-in .fn-bar i{width:var(--w)}
.fn-r b{font:500 .95rem var(--f-m);min-width:6.5em;text-align:right}
.fn-tip{min-height:1.5em;margin-top:12px;font-size:.92rem;color:var(--ink-2)}
@media (max-width:560px){.fn-r{grid-template-columns:1fr auto}.fn-bar{grid-column:1/-1;grid-row:2;height:14px}}

/* profondeur */
.prof-svg{width:100%;font-family:var(--f-b)}
.prof-svg text{fill:var(--ink)}
.prof-labels text{font-weight:600}
.prof-small{font-size:13px;fill:var(--ink-2)!important}
.prof-tunnel{stroke:var(--night);stroke-width:26;stroke-linecap:round;opacity:.9}
:root[data-theme="dark"] .prof-tunnel{stroke:#000}
.prof-shaft{fill:var(--night);opacity:.85}
.prof-st{fill:var(--accent);opacity:.9}
.prof-axis line{stroke:var(--ink-2);stroke-width:2;stroke-dasharray:4 4}
.prof-axis text{font-size:13px;fill:var(--ink-2)}
.prof-tram{fill:#2ec4b6;stroke:#fff;stroke-width:3}

/* reveal */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s,transform .7s}
.reveal.is-in{opacity:1;transform:none}

/* ---------- pied ---------- */
.ft{background:var(--night);color:var(--night-ink);padding:48px 0 32px}
.ft-in{display:grid;gap:22px}
.ft-brand{display:flex;gap:14px;align-items:flex-start;max-width:640px}
.ft-brand p{margin:0;color:var(--night-muted);font-size:.95rem}
.ft-brand b{color:#fff}
.ft-links{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:.92rem}
.ft-links a{color:#fff}
.ft-small{margin:0;font-size:.8rem;color:var(--night-muted)}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
  .hr-line{stroke-dashoffset:0}
}
@media print{.hd,.ft,.ns,.toc,.hero-scroll{display:none}.hero{min-height:0;color:var(--ink);background:none}.hero-bg{display:none}}
[hidden]{display:none!important}