:root{
  --bg:#f6f1e7; --card:#fffdf8; --ink:#2a2420; --muted:#6b6058; --line:#e3d9c8;
  --red:#6e1d27; --red-ink:#fff; --blue:#1d4b86; --gold:#b8891d; --gold-soft:#f3e6c4;
  --ok:#2e6b3a; --radius:14px;
  --serif: Georgia, "Times New Roman", serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#16120f; --card:#211b17; --ink:#efe7dc; --muted:#b3a697; --line:#3a312a;
    --red:#c2525f; --red-ink:#16120f; --blue:#8fb3e6; --gold:#e0b54e; --gold-soft:#3a3020; --ok:#7cc48b;
  }
}
:root[data-theme="dark"]{
  --bg:#16120f; --card:#211b17; --ink:#efe7dc; --muted:#b3a697; --line:#3a312a;
  --red:#c2525f; --red-ink:#16120f; --blue:#8fb3e6; --gold:#e0b54e; --gold-soft:#3a3020; --ok:#7cc48b;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:18px/1.6 var(--sans)}
a{color:var(--blue)}
main{max-width:680px;margin:0 auto;padding:16px 16px 40px;outline:none}
h1,h2,h3{font-family:var(--serif);line-height:1.2;margin:0 0 .4em}
h1{font-size:1.75rem} h2{font-size:1.35rem} h3{font-size:1.1rem}
p{margin:0 0 .9em}

.masthead{background:var(--red);color:var(--red-ink);padding:10px 16px;position:sticky;top:0;z-index:5}
.brand{display:flex;gap:10px;align-items:center;color:inherit;text-decoration:none;max-width:680px;margin:0 auto}
.brand img{border-radius:8px;background:#fff}
.brand span{display:flex;flex-direction:column;line-height:1.2}
.brand small{opacity:.85;font-size:.8rem}

.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px;margin:0 0 16px}
.lead{font-size:1.12em;line-height:1.5}
.muted{color:var(--muted)}
.small{font-size:.88rem}

/* offline status */
.status{display:flex;gap:12px;align-items:center}
.status .dot{width:14px;height:14px;border-radius:50%;background:var(--gold);flex:none}
.status.ready .dot{background:var(--ok)}
.bar{height:6px;background:var(--line);border-radius:3px;overflow:hidden;margin-top:6px}
.bar i{display:block;height:100%;width:0;background:var(--gold);transition:width .2s}

/* floor plan */
.plan svg{width:100%;height:auto;display:block}
.plan .wall{fill:var(--card);stroke:var(--ink);stroke-width:3}
.plan .lbl{font:600 14px var(--sans);fill:var(--muted);text-anchor:middle}
.plan .pin circle{fill:var(--red);stroke:var(--card);stroke-width:3}
.plan .pin.soon circle{fill:var(--muted)}
.plan .pin text{font:700 18px var(--sans);fill:var(--red-ink);text-anchor:middle;dominant-baseline:central;pointer-events:none}
.plan .pin{cursor:pointer}
.plan .pin:focus{outline:none}
.plan .pin:focus circle,.plan .pin:hover circle{stroke:var(--gold)}

/* stop list */
.stops{list-style:none;margin:0;padding:0}
.stops a{display:flex;gap:14px;align-items:center;padding:12px 4px;border-bottom:1px solid var(--line);color:var(--ink);text-decoration:none;min-height:56px}
.num{flex:none;width:40px;height:40px;border-radius:50%;display:grid;place-items:center;background:var(--red);color:var(--red-ink);font-weight:700}
.soon .num{background:var(--line);color:var(--muted)}
.stops .t{display:block;font-weight:600}
.stops .w{display:block;font-size:.85rem;color:var(--muted)}
.soon .t{color:var(--muted);font-weight:500}

/* stop page */
.where{display:flex;gap:8px;align-items:flex-start;background:var(--gold-soft);border-radius:10px;padding:10px 12px;margin:0 0 16px;font-size:.95rem}
.player{margin:0 0 12px}
.player audio{width:100%}
.noaudio{font-size:.9rem;color:var(--muted);background:var(--bg);border:1px dashed var(--line);border-radius:10px;padding:10px 12px}
details{border-top:1px solid var(--line);padding-top:8px}
summary{cursor:pointer;font-weight:600;color:var(--blue);padding:6px 0;min-height:44px;display:flex;align-items:center}
.transcript p{font-family:var(--serif);font-size:1.05rem}
.deep{border-left:5px solid var(--gold)}
.deep h2::before{content:"\2726  ";color:var(--gold)}

.nav{display:flex;gap:10px;margin-top:8px}
.btn{flex:1;display:inline-flex;justify-content:center;align-items:center;min-height:52px;padding:10px 14px;border-radius:12px;border:2px solid var(--red);background:var(--card);color:var(--red);font:600 1rem var(--sans);text-decoration:none;cursor:pointer}
.btn.primary{background:var(--red);color:var(--red-ink)}
.btn[aria-disabled="true"]{opacity:.35;pointer-events:none}

.support{text-align:center}
.foot{max-width:680px;margin:0 auto;padding:0 16px 32px;color:var(--muted);font-size:.8rem;text-align:center}
@media (min-width:700px){ body{font-size:19px} }

/* then-and-now swipe */
.compare{margin:16px 0 4px}
.swipe{position:relative;border-radius:10px;overflow:hidden;background:#000;touch-action:pan-y;user-select:none;-webkit-user-select:none;cursor:ew-resize;aspect-ratio:1200/695}
.swipe img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;pointer-events:none}
.swipe .before{clip-path:inset(0 calc(100% - var(--pos)) 0 0)}
.swipe .handle{position:absolute;top:0;bottom:0;left:var(--pos);width:3px;margin-left:-1.5px;background:#fff;box-shadow:0 0 6px rgba(0,0,0,.6);pointer-events:none}
.swipe .handle i{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:44px;height:44px;border-radius:50%;background:#fff;color:#2a2420;display:grid;place-items:center;font:700 16px var(--sans);font-style:normal;box-shadow:0 1px 6px rgba(0,0,0,.5)}
.swipe .tag{position:absolute;top:8px;padding:2px 10px;border-radius:999px;background:rgba(0,0,0,.6);color:#fff;font:700 .85rem var(--sans);pointer-events:none}
.swipe .tag.l{left:8px} .swipe .tag.r{right:8px}
.swipe input{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}
.swipe:focus-within .handle i{outline:3px solid var(--gold)}
.show{display:flex;gap:10px;margin:10px 0 0}
.show .chip{flex:1;min-height:52px;font-size:1.1rem}
.swipe.glide .before{transition:clip-path .4s ease}
.swipe.glide .handle{transition:left .4s ease}
.compare figcaption{margin-top:6px}
.compare .alts{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.pairs{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 8px}
.chip{min-height:44px;padding:6px 14px;border-radius:999px;border:2px solid var(--red);background:var(--card);color:var(--red);font:600 .95rem var(--sans);cursor:pointer}
.chip[aria-pressed="true"]{background:var(--red);color:var(--red-ink)}

.spot{margin:12px 0 4px;padding:12px 14px;border-radius:10px;background:var(--card);border:1px dashed var(--red)}
.spot p{margin:0 0 8px}
.spot summary{display:inline-flex;align-items:center;min-height:44px;padding:6px 16px;border-radius:999px;border:2px solid var(--red);color:var(--red);font:600 .95rem var(--sans);cursor:pointer;list-style:none}
.spot summary::-webkit-details-marker{display:none}
.spot details[open] summary{background:var(--red);color:var(--red-ink)}
.spot ol{margin:10px 0 0;padding-left:1.4em}
.spot li{margin:0 0 6px}

.tip{border-left:5px solid var(--gold)}
.tip p{margin:0}