/* restrictiile-care-raman: rust on the track bed. Old slow zones glow red, new ones pale; paper by day, ballast by night. */
:root{
  --serif:'Newsreader',Georgia,'Times New Roman',serif; --sans:'Atkinson Hyperlegible Next',system-ui,-apple-system,'Segoe UI',sans-serif; --mono:'IBM Plex Mono',ui-monospace,Menlo,monospace;
  --bg:#efeae0; --surface:#faf7f0; --fg:#17181c; --mut:#3f424a; --line:#c6bdab; --line-soft:#dbd3c4;
  --acc:#9a2a14; --link:#8a2511; --acc-soft:#f2ddd3; --lamp:#9a2a14; --rust:#b3341a; --ash:#7a1f14;
  --bar:#8d8a84; --bar30:#9a2a14;
  --s0:#6e0f12; --s1:#c0391f; --s2:#e08a2c; --s3:#e6c46b; --lane:#e2dccf; --stl:#c9c0ae;
  --col:40rem; --wide:74rem;
  /* the map is always the night platform */
  --map-bg:#14161b; --map-county:rgba(226,214,190,.11); --map-country:rgba(236,226,204,.45); --map-net:rgba(214,206,190,.30); --map-fg:#efe8da; --map-mut:#b8b1a3; --map-label:rgba(16,18,22,.9); --map-sel:#ffffff;
  --f0:#ff3b2f; --f1:#ff6a33; --f2:#ff9640; --f3:#ffc15a; --f4:#e9dca6; --f5:#8fb3cf;
  color-scheme:light;
}
html.dark{
  --bg:#121418; --surface:#1a1d23; --fg:#ece7dc; --mut:#bab3a6; --line:#343944; --line-soft:#262a32;
  --acc:#ff9a7a; --link:#ffb299; --acc-soft:#2c1c17; --lamp:#ff9a7a; --rust:#ff7a52; --ash:#ff8f7a;
  --bar:#7d8290; --bar30:#ff7a52;
  --s0:#ff4b3e; --s1:#ff8a4a; --s2:#f6b552; --s3:#efe0a2; --lane:#23272f; --stl:#3a404c;
  color-scheme:dark;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
svg[hidden]{display:none}
html{-webkit-text-size-adjust:100%;scroll-padding-top:4.5rem}
body{margin:0;background:var(--bg);color:var(--fg);font:400 1.0625rem/1.6 var(--sans);text-rendering:optimizeLegibility}
a{color:var(--link);text-underline-offset:.18em;text-decoration-thickness:1px}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:2.5px solid var(--acc);outline-offset:2px;border-radius:3px}
.skip{position:absolute;left:-999px;top:0;background:var(--fg);color:var(--bg);padding:.5rem .8rem;z-index:50}
.skip:focus{left:.5rem;top:.5rem}
h1,h2,h3,h4{font-family:var(--serif);font-weight:400;line-height:1.12;letter-spacing:-.012em;margin:0 0 .55em;font-optical-sizing:auto}
h1{font-size:clamp(1.8rem,1.3rem + 1.6vw,2.55rem)}
h2{font-size:clamp(1.55rem,1.15rem + 1.4vw,2.25rem);position:relative}
h3{font-size:1.3rem;margin-top:2rem}
p{margin:0 0 1em}
.num,.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
.wrap{max-width:var(--col);margin:0 auto;padding:0 1rem}
.wide{max-width:var(--wide);margin:0 auto;padding:0 1rem}
.kicker{font:700 .78rem/1.2 var(--sans);letter-spacing:.1em;text-transform:uppercase;color:var(--acc);margin-bottom:.9rem}
.kicker a{color:inherit}
.deck{font-size:1.08rem;max-width:36rem}
.note{color:var(--mut);font-size:.96rem}
.sub{color:var(--mut)}
.btn{display:inline-flex;align-items:center;gap:.4rem;min-height:44px;padding:.45rem .95rem;border:1px solid var(--line);border-radius:999px;background:var(--surface);color:var(--fg);font:700 .94rem/1.2 var(--sans);cursor:pointer;text-decoration:none}
.btn:hover{border-color:var(--acc)}
.btn.ghost{background:transparent}
.btn.small{min-height:36px;padding:.3rem .75rem;font-size:.86rem}
.btn.full{width:100%;justify-content:center;margin-top:.5rem}
.btn.more{margin:.8rem 0 0}
/* topbar */
.topbar{position:sticky;top:0;z-index:30;display:flex;align-items:center;gap:.9rem;height:46px;padding:0 1rem;padding-top:var(--browser-safe-top,env(safe-area-inset-top));background:var(--bg);border-bottom:1px solid var(--line-soft)}
.home{display:flex;align-items:center;gap:.45rem;color:var(--fg);text-decoration:none;font:700 .9rem/1 var(--sans)}
.motif{width:20px;height:20px}
.topnav{display:flex;gap:.95rem;overflow:hidden}
.topnav a{color:var(--mut);text-decoration:none;font:500 .88rem/1 var(--sans);white-space:nowrap}
.topnav a:hover{color:var(--fg)}
.spacer{flex:1}
.chip{font:700 .84rem/1 var(--sans);color:var(--fg);text-decoration:none;border:1px solid var(--line);border-radius:999px;padding:.4rem .7rem;min-height:32px;display:inline-flex;align-items:center}
.icon-btn{display:inline-grid;place-items:center;width:36px;height:36px;border:1px solid var(--line);border-radius:999px;background:transparent;color:var(--fg);cursor:pointer;font:700 1.1rem/1 var(--sans)}
.progress{position:absolute;left:0;right:0;bottom:-1px;height:2px;overflow:hidden;pointer-events:none}
.progress i{display:block;height:100%;background:var(--rust);transform-origin:0 50%;transform:scaleX(0)}
@media (max-width:820px){.topnav{display:none}}
/* rail */
.rail{position:fixed;right:10px;top:50%;transform:translateY(-50%);z-index:20;display:flex;flex-direction:column;gap:9px;opacity:0;transition:opacity .3s}
html.past-hero .rail{opacity:1}
.rail-dot{position:relative;display:block;width:14px;height:14px}
.rail-dot .dot{position:absolute;inset:4px;border-radius:50%;background:var(--line)}
.rail-dot[aria-current] .dot{background:var(--lamp);inset:3px}
.rail-label{position:absolute;right:20px;top:50%;transform:translateY(-50%);white-space:nowrap;background:var(--surface);color:var(--fg);border:1px solid var(--line);border-radius:6px;padding:.15rem .45rem;font:600 .8rem/1.3 var(--sans);opacity:0;pointer-events:none;transition:opacity .15s}
.rail-dot:hover .rail-label,.rail-dot:focus-visible .rail-label{opacity:1}
@media (max-width:1180px){.rail{display:none}}
/* hero */
.hero{display:grid;grid-template-columns:minmax(19rem,25rem) 1fr;gap:1.6rem;max-width:90rem;margin:0 auto;padding:1.6rem 1rem 1.2rem;align-items:start}
.hero-text{padding-top:.4rem}
.hero h1{margin-bottom:.5em}
.search{margin:1.1rem 0 .8rem;position:relative}
.search label{display:block;font:700 .9rem/1.3 var(--sans);margin-bottom:.35rem}
.qwrap{display:flex;gap:.4rem}
#q{flex:1;min-height:46px;border:1.5px solid var(--line);border-radius:10px;padding:.5rem .8rem;font:500 1.02rem/1.2 var(--sans);background:var(--surface);color:var(--fg)}
#q:focus{border-color:var(--acc);outline:none;box-shadow:0 0 0 3px var(--acc-soft)}
.sugg{position:absolute;z-index:15;left:0;right:0;top:100%;margin:.2rem 0 0;padding:.25rem;list-style:none;background:var(--surface);border:1px solid var(--line);border-radius:10px;box-shadow:0 10px 30px rgba(0,0,0,.18);max-height:20rem;overflow:auto}
.sugg li{padding:.5rem .6rem;border-radius:7px;cursor:pointer;display:flex;justify-content:space-between;gap:.6rem}
.sugg li span{color:var(--mut);font-size:.88rem;white-space:nowrap}
.sugg li[aria-selected="true"],.sugg li:hover{background:var(--acc-soft)}
.hint{font-size:.88rem;color:var(--mut);margin:.4rem 0 0}
.status{font-size:.9rem;color:var(--mut);min-height:1.2em;margin:.3rem 0 0}
/* station card: a platform departure board */
.card{border:1px solid var(--line);border-radius:14px;background:var(--surface);padding:1rem 1.05rem;margin-top:.6rem}
.card:focus{outline:none}
.card .where{font:700 .76rem/1.3 var(--sans);letter-spacing:.08em;text-transform:uppercase;color:var(--mut);margin:0 0 .2rem}
.card .cname{font-family:var(--serif);font-size:1.75rem;line-height:1.1;margin:0 0 .55rem}
.card .line{margin:.6rem 0 .2rem}
.card .why{border-left:3px solid var(--ash);padding:.15rem 0 .15rem .7rem;margin:.6rem 0;font-size:.97rem}
.card .why.works{border-color:var(--lamp)}
.card .why .src{display:block;font-size:.86rem;color:var(--mut);margin-top:.25rem}
.card .near{font-size:.97rem}
.card .links{margin:.6rem 0 0;font-size:.95rem}
.card-share{margin-top:.5rem}
.tag{display:inline-block;font:700 .72rem/1 var(--sans);letter-spacing:.06em;text-transform:uppercase;padding:.28rem .45rem;border-radius:5px;background:var(--acc-soft);color:var(--fg);margin-right:.35rem;vertical-align:.12em}
.tag.dark{background:var(--ash);color:#fff}
html.dark .tag.dark{color:#1b0c0e}
/* stage */
.stage{position:relative;margin:0;background:var(--map-bg);border-radius:16px;overflow:hidden;color:var(--map-fg);min-height:420px;display:flex;flex-direction:column}
#map{display:block;width:100%;aspect-ratio:1.42;max-height:max(340px,calc(100svh - 230px));touch-action:pan-y;cursor:default}
.map-tools{position:absolute;right:12px;top:12px;display:flex;gap:6px;align-items:center}
.map-tools .icon-btn,.map-tools .btn{background:rgba(11,15,23,.75);color:var(--map-fg);border-color:rgba(236,226,204,.3)}
.legend{display:flex;flex-wrap:wrap;gap:.35rem 1.1rem;padding:.55rem .9rem .8rem;font-size:.84rem;color:var(--map-mut);border-top:1px solid rgba(236,226,204,.12)}
.legend i{display:inline-block;vertical-align:-.1em;margin-right:.4rem}
.tip{position:absolute;z-index:6;pointer-events:none;background:var(--map-label);color:var(--map-fg);border:1px solid rgba(236,226,204,.25);border-radius:8px;padding:.35rem .55rem;font-size:.86rem;line-height:1.35;max-width:17rem}
.tip small{display:block;color:var(--map-mut);font-size:.78rem}
.pop{position:absolute;z-index:8;width:17.5rem;background:#141a26;color:var(--map-fg);border:1px solid rgba(236,226,204,.28);border-radius:12px;padding:.8rem .9rem .85rem;box-shadow:0 14px 40px rgba(0,0,0,.45)}
.pop h4{font-family:var(--serif);font-size:1.25rem;margin:0 1.6rem .3rem 0;font-weight:400}
.pop p{margin:0 0 .4rem;font-size:.92rem;color:var(--map-mut)}
.pop .pv{font:500 1.35rem/1.1 var(--mono);color:var(--map-fg)}
.pop .pv .z{color:var(--map-ghost-dot)}
.pop .x{position:absolute;right:6px;top:6px;width:36px;height:36px;border:0;background:transparent;color:var(--map-fg);font-size:1.4rem;cursor:pointer;border-radius:8px}
.pop .btn{background:rgba(255,196,110,.14);color:var(--map-fg);border-color:rgba(255,196,110,.5)}
.pop.sheet{position:relative;width:auto;margin:0 .6rem .6rem;left:auto;top:auto}
/* sections */
.block{padding:2.6rem 0 1rem;border-top:1px solid var(--line-soft)}
.block h2 .anchor{position:absolute;left:-1.1em;color:var(--line);text-decoration:none;font-size:.8em;opacity:0}
.block h2:hover .anchor,.block h2 .anchor:focus{opacity:1}
.page-share{padding:.2rem 1rem 1.4rem;max-width:90rem;margin:0 auto}
.lede-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin:1.4rem 0 1.6rem}
.stat{border-top:2px solid var(--fg);padding-top:.5rem}
.stat b{display:block;font:500 clamp(1.35rem,1.05rem + 1vw,1.85rem)/1.1 var(--mono);white-space:nowrap}
.stat span{font-size:.92rem;color:var(--mut)}
.stat.ash{border-color:var(--ash)} .stat.ash b{color:var(--ash)}
.fig{margin:1.2rem 0 1.4rem}
.fig figcaption{font:700 .92rem/1.35 var(--sans);margin-bottom:.4rem}
.fig figcaption span{font-weight:400;color:var(--mut)}
.chart{width:100%;height:auto;display:block}
.chart text{font:500 12px var(--mono);fill:var(--mut)}
.chart .grid{stroke:var(--line-soft);stroke-width:1}
.chart .tr{fill:none;stroke:var(--fg);stroke-width:2.4}
.chart .stn{fill:none;stroke:var(--ash);stroke-width:2.4}
.chart .dot-tr{fill:var(--fg)} .chart .dot-stn{fill:var(--ash)}
.chart .lab{font:700 12.5px var(--sans);fill:var(--fg)} .chart .lab.ash{fill:var(--ash)}
.chart .bar{fill:var(--bar)} .chart .bar.up{fill:var(--lamp)} .chart .bar.down{fill:var(--ash)}
.chart .nm{font:500 12.5px var(--sans);fill:var(--fg)}
.scrollx{overflow-x:auto}
.tablewrap{overflow-x:auto;border:1px solid var(--line-soft);border-radius:10px}
table.data{width:100%;border-collapse:collapse;font-size:.94rem}
table.data th,table.data td{padding:.5rem .65rem;text-align:left;border-bottom:1px solid var(--line-soft);vertical-align:top}
table.data th{font:700 .8rem/1.3 var(--sans);color:var(--mut);background:var(--surface);position:sticky;top:0}
table.data td.num,table.data th.num{text-align:right;font-family:var(--mono);white-space:nowrap}
table.data tr:last-child td{border-bottom:0}
table.data td.zero{color:var(--ash)}
.lines{list-style:none;padding:0;margin:1rem 0}
.lines li{border-top:1px solid var(--line-soft);padding:.9rem 0}
.lines h3{margin:0 0 .25rem;font-size:1.18rem}
.lines .meta{font-size:.88rem;color:var(--mut);margin:0 0 .35rem}
.lines p{margin:0 0 .35rem}
.lines .src{font-size:.86rem;color:var(--mut)}
.plain{list-style:none;padding:0}
.sources li{margin:.45rem 0;font-size:.95rem}
/* share row */
.share-row{display:flex;align-items:center;gap:.4rem;flex-wrap:wrap}
.share-row .lbl{font-size:.88rem;color:var(--mut);margin-right:.2rem}
.share-row a,.share-row button{display:inline-grid;place-items:center;width:40px;height:40px;border:1px solid var(--line-soft);border-radius:50%;background:transparent;color:var(--fg);cursor:pointer}
.share-row a:hover,.share-row button:hover{color:var(--acc);border-color:var(--acc)}
.share-row svg{width:18px;height:18px}
@media (pointer:coarse){.share-row a,.share-row button{width:44px;height:44px}}
footer{display:flex;flex-wrap:wrap;gap:.6rem 1.4rem;justify-content:center;padding:2.2rem 1rem 3rem;border-top:1px solid var(--line-soft);margin-top:2rem;font-size:.9rem;color:var(--mut)}
footer a{color:var(--mut)}
/* station page */
.stpage .wrap{padding-top:1.6rem}
.stpage .spark{height:120px}
@media (max-width:980px){
  .hero{grid-template-columns:1fr;gap:.6rem;padding-top:1rem}
  .stage{order:-1;min-height:0}
  .hero-text{order:0;display:flex;flex-direction:column}
  html.shared .hero-text .card{order:-2;margin:0 0 .4rem}
  html.shared .hero-text .card-share{order:-1;margin-bottom:1rem}
}
@media (max-width:560px){
  .lede-stats{grid-template-columns:1fr;gap:.6rem}
  .map-tools{right:8px;top:8px}
  .legend{display:grid;grid-template-columns:1fr 1fr;gap:.2rem .6rem;font-size:.74rem;line-height:1.25;padding:.4rem .6rem .5rem}
  #map{aspect-ratio:1.75;max-height:none}
}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}
@media print{.topbar,.rail,.map-tools,.timebar,.share-row,.page-share{display:none}}

/* legend: first April */
.legend b{font-weight:700;color:var(--map-fg);margin-right:.2rem}
.k-f{width:20px;height:4px;border-radius:2px}
.k-f.f0{background:var(--f0)} .k-f.f1{background:var(--f1)} .k-f.f2{background:var(--f2)} .k-f.f3{background:var(--f3)} .k-f.f4{background:var(--f4)} .k-f.f5{background:var(--f5)}
.k-net{width:20px;height:1.5px;background:var(--map-net)}
.tip .sw{display:inline-block;width:10px;height:10px;border-radius:2px;margin-right:.35rem;vertical-align:-.05em}
/* speed chips and keys */
.sp{display:inline-block;min-width:2.4em;text-align:center;font:600 .82rem/1 var(--mono);padding:.22rem .35rem;border-radius:4px;color:#fff}
.sp.s0{background:var(--s0)} .sp.s1{background:var(--s1)} .sp.s2{background:var(--s2);color:#1a1205} .sp.s3{background:var(--s3);color:#1a1205}
html.dark .sp.s0,html.dark .sp.s1{color:#140705}
.chart-key{display:flex;flex-wrap:wrap;gap:.3rem 1rem;font-size:.86rem;color:var(--mut);margin:.4rem 0 0}
.chart-key i{display:inline-block;width:14px;height:10px;border-radius:2px;margin-right:.35rem;vertical-align:-.05em}
.k-sp.s0{background:var(--s0)} .k-sp.s1{background:var(--s1)} .k-sp.s2{background:var(--s2)} .k-sp.s3{background:var(--s3)}
.k-bar{background:var(--bar)} .k-bar30{background:var(--bar30)}
.chart .bar{fill:var(--bar)} .chart .bar.now{fill:var(--bar);opacity:.6} .chart .bar30{fill:var(--bar30)}
.chart .val{font:600 12px var(--mono);fill:var(--fg)} .chart .cap{font:500 10.5px var(--sans);fill:var(--mut)}
/* 2026 km by first April */
.firstbar{display:flex;gap:2px;width:100%;height:46px;border-radius:6px;overflow:hidden}
.fb{display:flex;align-items:center;padding:0 .5rem;min-width:0;color:#1a1205}
.fb b{font:600 .95rem/1.1 var(--mono);white-space:nowrap}
.fb small{font-size:.74rem;line-height:1.2;overflow:hidden;text-overflow:ellipsis}
.fb.f0{background:var(--f0);color:#fff} .fb.f1{background:var(--f1)} .fb.f2{background:var(--f2)} .fb.f3{background:var(--f3)} .fb.f4{background:var(--f4)} .fb.f5{background:var(--f5)}
html:not(.dark) .fb.f0{background:#b3261a} html:not(.dark) .fb.f1{background:#d9542b;color:#fff}

/* the line ruler */
.ruler{width:100%;height:auto;display:block;margin:.4rem 0 .2rem}
.ruler .lane{fill:var(--lane)}
.ruler .r.s0{fill:var(--s0)} .ruler .r.s1{fill:var(--s1)} .ruler .r.s2{fill:var(--s2)} .ruler .r.s3{fill:var(--s3)}
.ruler .r:hover{stroke:var(--fg);stroke-width:1}
.ruler .yr{font:600 11px var(--mono);fill:var(--mut)}
.ruler .km{font:500 10px var(--mono);fill:var(--mut)}
.ruler .stn{font:600 10px var(--sans);fill:var(--fg)}
.ruler .stl{stroke:var(--stl);stroke-width:1;stroke-dasharray:2 3}
.card .lid{font:700 .76rem/1.3 var(--sans);letter-spacing:.08em;text-transform:uppercase;color:var(--mut);margin:0 0 .15rem}
.card .lname{font-family:var(--serif);font-size:1.55rem;line-height:1.12;margin:0 0 .6rem}
.lstats{display:grid;grid-template-columns:repeat(2,1fr);gap:.5rem .9rem;margin:.2rem 0 .5rem}
.lstats div b{display:block;font:500 1.35rem/1.1 var(--mono)}
.lstats div span{font-size:.82rem;color:var(--mut)}
.lstats .rust b{color:var(--rust)}
.card .links{display:flex;gap:.6rem;flex-wrap:wrap;align-items:center}
.stat.rust{border-color:var(--rust)} .stat.rust b{color:var(--rust)}
.lpage .wrap{padding-top:1.6rem}
.lpage details{border-top:1px solid var(--line-soft);padding:.5rem 0}
.lpage summary{cursor:pointer;font-weight:700}
.rows li{font-size:.92rem;margin:.3rem 0}

/* the line strip over the bottom of the map (wide screens); the card keeps its own copy for phones */
.mapwrap{position:relative}
.strip{position:absolute;left:10px;right:10px;bottom:10px;background:rgba(16,18,22,.93);border:1px solid rgba(236,226,204,.22);border-radius:12px;padding:.55rem .8rem .45rem;color:var(--map-fg);
  --lane:#2a2e36;--stl:#454b57;--fg:#efe8da;--mut:#b8b1a3;--s0:#ff4b3e;--s1:#ff8a4a;--s2:#f6b552;--s3:#efe0a2}
.strip .strip-h{margin:0;font-size:.84rem;color:var(--map-mut)} .strip .strip-h b{color:var(--map-fg)}
.strip .ruler{margin:.2rem 0 0;max-height:210px}
.strip .chart-key{margin:.1rem 0 0;font-size:.78rem}
@media (min-width:981px){.card-ruler{display:none}}
@media (max-width:980px){.strip{display:none!important}}
.fbkey{list-style:none;padding:0;margin:.6rem 0 0;display:grid;grid-template-columns:repeat(auto-fit,minmax(15rem,1fr));gap:.25rem 1.2rem;font-size:.9rem;color:var(--mut)}
.fbkey li{display:flex;align-items:center;gap:.45rem}.fbkey b{margin-left:auto;font:500 .9rem var(--mono);color:var(--fg)}
.fbkey .k-f{display:inline-block;width:14px;height:10px}
html:not(.dark) .fbkey .k-f.f0{background:#b3261a} html:not(.dark) .fbkey .k-f.f1{background:#d9542b}
.ruler .r.lim{opacity:.42}
table.data td.who{font-size:.86rem;color:var(--mut)}