:root{
  --ink:#12293B;
  --ink-soft:#4C6270;
  --teal:#1B6E78;
  --teal-tint:#E1EBE9;
  --teal-deep:#0F4C54;
  --amber:#B96A12;
  --paper:#EFEEE2;
  --surface:#FBFAF4;
  --line:#D6D2C0;
  --line-strong:#B9B49E;
  color-scheme: light;
  padding-top:env(safe-area-inset-top,0);
  padding-bottom:env(safe-area-inset-bottom,0);
}
@media (prefers-color-scheme: dark){
  :root{
    --ink:#E7E9E1;
    --ink-soft:#9FACA8;
    --teal:#5BC4CE;
    --teal-tint:#16302F;
    --teal-deep:#7ADBE4;
    --amber:#F0A73A;
    --paper:#0B1620;
    --surface:#12222F;
    --line:#233241;
    --line-strong:#33465A;
    color-scheme:dark;
  }
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:"Golos Text","PT Sans",Arial,sans-serif;
  line-height:1.55;
  padding-inline:max(16px,calc((100vw - 1120px)/2));
}
h1,h2,h3{font-family:"Unbounded","Golos Text",Arial,sans-serif;text-wrap:balance;margin:0;line-height:1.15;font-weight:600;}
.mono{font-family:"JetBrains Mono",ui-monospace,monospace;}
.muted{color:var(--ink-soft);}
a{color:var(--teal);text-decoration:none;}
a:hover{text-decoration:underline;}
img{max-width:100%;}
[hidden]{display:none !important;}

.eyebrow{
  font-family:"JetBrains Mono",ui-monospace,monospace;
  font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--teal);
  margin:0 0 14px;
}
.btn{
  display:inline-block;border:1.5px solid var(--ink);border-radius:2px;
  padding:10px 18px;font-family:"JetBrains Mono",monospace;font-size:.8rem;color:var(--surface);
  background:var(--ink);cursor:pointer;text-decoration:none;
}
.btn:hover{background:var(--teal);border-color:var(--teal);text-decoration:none;}
.btn.ghost{background:transparent;color:var(--ink);}
.btn.ghost:hover{color:var(--surface);}

/* header */
.top{display:flex;align-items:center;justify-content:space-between;padding:22px 0 10px;gap:16px;flex-wrap:wrap;}
.brand{font-family:"Unbounded",sans-serif;font-weight:600;font-size:1.05rem;display:flex;align-items:center;gap:10px;}
.brand .dot{width:12px;height:12px;border-radius:50%;background:var(--teal);box-shadow:6px 6px 0 var(--amber);}
.brand .tld{color:var(--ink-soft);font-size:.8rem;}
.top nav{display:flex;gap:20px;font-family:"JetBrains Mono",monospace;font-size:.8rem;align-items:center;flex-wrap:wrap;}
.top nav a{color:var(--ink);}
.top nav a:hover{color:var(--teal);text-decoration:none;}
.top nav .ext{color:var(--teal);}

/* hero */
.hero{padding:56px 0 46px;}
.hero h1{font-size:clamp(1.9rem,4.6vw,3.1rem);letter-spacing:-.01em;}
.hero .lede{max-width:640px;margin:22px 0 0;color:var(--ink-soft);font-size:1.02rem;}
.hero .phrase{font-family:"JetBrains Mono",monospace;font-size:.78rem;color:var(--amber);margin-top:10px;}
.hero-cta{display:flex;gap:12px;margin-top:26px;flex-wrap:wrap;}
.stats{display:flex;gap:38px;margin-top:44px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:22px;}
.stats div{font-size:.78rem;color:var(--ink-soft);}
.stats b{display:block;font-family:"Unbounded",sans-serif;font-size:1.5rem;color:var(--ink);font-weight:600;}

/* sections */
section{scroll-margin-top:24px;}
.routes{padding:30px 0 22px;}
h2{font-size:clamp(1.35rem,3vw,1.9rem);margin-bottom:8px;}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px;margin-top:24px;}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:4px;
  padding:18px 18px 15px;cursor:pointer;text-align:left;display:flex;flex-direction:column;gap:8px;
  color:var(--ink);
}
.card:hover{border-color:var(--teal);}
.card .c-top{display:flex;align-items:center;gap:10px;}
.card .c-num{font-family:"JetBrains Mono",monospace;font-size:.72rem;color:var(--ink-soft);}
.card .swatch{width:10px;height:10px;border-radius:2px;}
.card h3{font-size:1rem;font-family:"Golos Text",sans-serif;font-weight:700;}
.card .tag{font-size:.86rem;color:var(--ink-soft);flex:1;}
.card .meta{font-family:"JetBrains Mono",monospace;font-size:.72rem;color:var(--teal);display:flex;justify-content:space-between;border-top:1px dashed var(--line);padding-top:10px;}
.card.active{outline:2px solid var(--teal);outline-offset:1px;}

/* map */
.mapsec{padding:30px 0 26px;}
.mapwrap{display:grid;grid-template-columns:252px 1fr;gap:14px;margin-top:20px;height:520px;}
.rlist{background:var(--surface);border:1px solid var(--line);border-radius:4px;overflow:auto;padding:8px;}
.ritem{
  display:flex;gap:10px;align-items:baseline;width:100%;text-align:left;cursor:pointer;
  background:transparent;border:0;border-bottom:1px dashed var(--line);padding:11px 8px;
  font:inherit;color:var(--ink);
}
.ritem:last-child{border-bottom:0;}
.ritem .n{font-family:"JetBrains Mono",monospace;font-size:.7rem;color:var(--ink-soft);}
.ritem .t{font-size:.88rem;font-weight:600;}
.ritem.active{background:var(--teal-tint);}
.ymap{background:#DDE4E0;border:1px solid var(--line);border-radius:4px;min-height:260px;}
.map-status{font-family:"JetBrains Mono",monospace;font-size:.8rem;color:var(--ink-soft);}
.map-status.fail{color:#B3261E;}

.sheet{margin-top:16px;background:var(--surface);border:1px solid var(--line);border-radius:4px;padding:18px 20px;}
.sheet-head{display:flex;gap:14px;align-items:baseline;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:6px;}
.sheet-head h3{font-size:1.05rem;margin:0;}
.sheet-head .meta{font-family:"JetBrains Mono",monospace;font-size:.76rem;color:var(--ink-soft);}
.sheet-head .badge{font-family:"JetBrains Mono",monospace;font-size:.72rem;padding:3px 8px;border-radius:2px;}
.sheet-head .badge.straight{background:#FFF4D6;color:#7A5B00;}
.sheet-head .tag{width:100%;color:var(--ink-soft);font-size:.9rem;margin:0;}
.stop{display:flex;gap:14px;padding:13px 2px;border-bottom:1px dashed var(--line);align-items:flex-start;}
.stop:last-of-type{border-bottom:0;}
.stop .num{flex:none;width:26px;height:26px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-family:"JetBrains Mono",monospace;font-size:.78rem;margin-top:2px;}
.stop .body{flex:1;min-width:0;}
.stop .name{font-weight:600;}
.stop .sub{font-size:.8rem;color:var(--ink-soft);margin-top:2px;display:flex;gap:8px;flex-wrap:wrap;align-items:center;}
.stop .sub .chip{font-family:"JetBrains Mono",monospace;font-size:.66rem;border:1px solid var(--line-strong);padding:1px 6px;border-radius:2px;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.06em;}
.stop .src{font-family:"JetBrains Mono",monospace;font-size:.7rem;color:var(--teal);}
.stop .leg{flex:none;font-family:"JetBrains Mono",monospace;font-size:.74rem;color:var(--amber);white-space:nowrap;margin-top:4px;}
.sheet-empty{font-family:"JetBrains Mono",monospace;font-size:.8rem;color:var(--ink-soft);padding:14px 2px;}

/* how */
.how{padding:26px 0 34px;}
.how ol{max-width:700px;padding-left:20px;margin:18px 0 0;display:grid;gap:10px;}
.how li{color:var(--ink-soft);}
.how li b{color:var(--ink);}

footer{border-top:1px solid var(--line);padding:22px 0 40px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:.8rem;color:var(--ink-soft);}
footer .mono{font-size:.76rem;}

@media (max-width:840px){
  .mapwrap{grid-template-columns:1fr;height:auto;}
  .rlist{max-height:220px;}
  .ymap{height:380px;}
}