:root{
  --water:#BFCCC9; --land:#E6E9DF; --road:#D2D6C9; --road-major:#BCC3B3; --river:#A4BAB7; --border:#8E998B;
  --ink:#1D2A28; --ink-2:#51605B; --ink-3:#84908A; --panel:#EDEFE7; --rule:#CCD2C5;
  --undated:#353E3B; --gap:#66726D; --halo:#F7F8F3;
  --r0:#B0245A; --r1:#D2521F; --r2:#B38000; --r3:#3B8836; --r4:#107E88; --r5:#3E4CAC;
  --sans:"Barlow", "Helvetica Neue", Arial, sans-serif;
  --cond:"Barlow Condensed", "Arial Narrow", "Roboto Condensed", sans-serif;
  --device:"Handjet", "Barlow Condensed", "Arial Narrow", sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --water:#081215; --land:#1C2A26; --road:#22322E; --road-major:#2D403B; --river:#1B3136; --border:#4B5E59;
    --ink:#E1E7DB; --ink-2:#A2AFA7; --ink-3:#6E7C75; --panel:#101C1A; --rule:#26363A;
    --undated:#CAD2C7; --gap:#8D9B95; --halo:#081215;
    --r0:#EE6D97; --r1:#F58A52; --r2:#E2B438; --r3:#6FC26A; --r4:#43C2CB; --r5:#8E9BF2;
    color-scheme: dark;
  }
}
:root[data-theme="dark"]{
  --water:#081215; --land:#1C2A26; --road:#22322E; --road-major:#2D403B; --river:#1B3136; --border:#4B5E59;
  --ink:#E1E7DB; --ink-2:#A2AFA7; --ink-3:#6E7C75; --panel:#101C1A; --rule:#26363A;
  --undated:#CAD2C7; --gap:#8D9B95; --halo:#081215;
  --r0:#EE6D97; --r1:#F58A52; --r2:#E2B438; --r3:#6FC26A; --r4:#43C2CB; --r5:#8E9BF2;
  color-scheme: dark;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; background:var(--panel); color:var(--ink);
  font:400 15px/1.5 var(--sans);
  display:grid; grid-template-columns:minmax(300px,360px) 1fr; grid-template-rows:1fr auto;
  grid-template-areas:"panel map" "strip strip";
  height:100vh; height:100dvh; overflow:hidden;
}
button{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--ink); outline-offset:2px}

/* ---------- panel ---------- */
#panel{grid-area:panel; overflow-y:auto; padding:26px 24px 40px; border-right:1px solid var(--rule); scrollbar-width:thin}
#head .stats{margin:0 0 4px; padding:16px 0 0; border-top:1px solid var(--rule)}
h1{
  font-family:var(--device); font-weight:500; font-size:46px; line-height:.95; letter-spacing:.005em;
  margin:0 0 14px; overflow-wrap:anywhere;
}
.lede{margin:0 0 20px; color:var(--ink-2); max-width:34em}
.key{list-style:none; margin:0 0 20px; padding:0; display:grid; gap:6px; font-size:14px; color:var(--ink-2)}
.key li{display:grid; grid-template-columns:44px 1fr; align-items:center; gap:10px}
.key svg{width:44px; height:12px; overflow:visible}
h2{font:600 15px/1.3 var(--sans); margin:28px 0 4px}
.sub{margin:0 0 10px; font-size:14px; color:var(--ink-3)}

#detail{
  grid-area:map; align-self:end; justify-self:start; position:relative; z-index:1100;
  width:340px; max-height:calc(100% - 76px); overflow-y:auto; margin:0 0 14px 14px;
  background:var(--panel); border:1px solid var(--rule); border-radius:3px; padding:16px 18px 16px; scrollbar-width:thin
}
#detail[hidden]{display:none}
#detail h2{font-size:20px; margin:0 0 2px; line-height:1.2}
.when{font-family:var(--device); font-size:22px; line-height:1.15; margin:4px 0 12px}
.when span{color:var(--ink-3); font-size:18px; margin-left:4px}
.stats{display:grid; grid-template-columns:repeat(auto-fill,minmax(130px,1fr)); gap:8px 14px; margin:0}
.stats div{min-width:0}
.stats dt{font-size:13px; color:var(--ink-3); line-height:1.25}
.stats dd{margin:0; font-family:var(--device); font-size:24px; line-height:1.1; font-variant-numeric:tabular-nums}
.note{font-size:14px; color:var(--ink-2); margin:12px 0 0}
.profile{margin:14px 0 0; position:relative}
.profile svg{display:block; width:100%; height:92px; cursor:crosshair; touch-action:none}
.profile .ymax,.profile .ymin{position:absolute; left:0; font-family:var(--device); font-size:15px; color:var(--ink-3); pointer-events:none; line-height:1}
.profile .ymax{top:0} .profile .ymin{top:78px}
.profile figcaption{font-size:13px; color:var(--ink-3); margin-top:4px; min-height:1.5em}
.actions{display:flex; flex-wrap:wrap; gap:8px 16px; align-items:center; margin:14px 0 0; font-size:14px}
.actions a{color:var(--ink)}
.textbtn{background:none; border:0; padding:0; text-decoration:underline; text-underline-offset:3px; cursor:pointer; color:var(--ink)}

.chapters{list-style:none; margin:0; padding:0}
.chapters li{margin:0}
.chapters button{
  width:100%; text-align:left; background:none; border:0; border-radius:3px; cursor:pointer;
  display:grid; grid-template-columns:22px 1fr; gap:10px; align-items:baseline; padding:5px 6px 5px 0;
}
.chapters button:hover{background:color-mix(in srgb, var(--ink) 6%, transparent)}
.chapters button[aria-pressed="true"]{background:color-mix(in srgb, var(--ink) 10%, transparent)}
.chapters .mk{align-self:center; height:3px; border-radius:2px; width:22px}
.chapters .mk.dash{background:repeating-linear-gradient(90deg,var(--undated) 0 6px,transparent 6px 9px)}
.chapters .t{display:block; line-height:1.3}
.chapters .d{display:block; font-family:var(--device); font-size:17px; line-height:1.1; color:var(--ink-2)}
.chapters .num{font-family:var(--device); font-size:17px; color:var(--ink-3); margin-right:6px}
.about p{font-size:14px; color:var(--ink-2); margin:0 0 10px; max-width:36em}
.about code{font-family:var(--device); font-size:16px; color:var(--ink)}

/* ---------- map ---------- */
#mapwrap{grid-area:map; position:relative; min-height:0}
#map{position:absolute; inset:0; background:var(--water); outline-offset:-2px}
.leaflet-container{font:400 14px/1.4 var(--sans); background:var(--water)}
.leaflet-control-zoom a{
  background:var(--panel)!important; color:var(--ink)!important; border-color:var(--rule)!important;
  width:34px!important; height:34px!important; line-height:32px!important; font:400 20px/32px var(--sans)!important;
}
.leaflet-bar{border:1px solid var(--rule)!important; box-shadow:none!important; border-radius:3px!important}
.layers{
  position:absolute; left:12px; top:12px; z-index:800; background:var(--panel); border:1px solid var(--rule);
  border-radius:3px; padding:6px 10px; display:flex; flex-wrap:wrap; gap:4px 14px; font-size:14px; max-width:calc(100% - 80px)
}
.layers label{display:flex; align-items:center; gap:6px; cursor:pointer; white-space:nowrap}
.layers input{accent-color:var(--ink); margin:0}
.readout{
  position:absolute; z-index:900; pointer-events:none; background:var(--panel); border:1px solid var(--rule);
  border-radius:3px; padding:4px 8px 5px; white-space:nowrap; transform:translate(12px,-50%); display:none
}
.readout b{display:block; font:500 19px/1.05 var(--device)}
.readout span{font-size:13px; color:var(--ink-2)}
.place span{
  position:absolute; transform:translate(-50%,-50%); white-space:nowrap;
  font:500 13px/1 var(--cond); letter-spacing:.02em; color:var(--ink-2);
  text-shadow:0 0 2px var(--land),0 0 3px var(--land),0 0 4px var(--land);
}
.place.big span{font-size:15px; color:var(--ink)}
.lake span{font-style:italic; color:color-mix(in srgb, var(--ink-2) 70%, var(--water)); text-shadow:0 0 3px var(--water),0 0 4px var(--water)}
.wp{background:none; border:0}
.wp i{position:absolute; left:3px; top:3px; width:6px; height:6px; transform:rotate(45deg); background:var(--panel); border:1.5px solid var(--ink-2)}
.wp b{
  display:none; position:absolute; left:12px; top:-5px; white-space:nowrap; font:500 16px/1 var(--device); color:var(--ink);
  text-shadow:0 0 2px var(--land),0 0 3px var(--land),0 0 4px var(--land)
}
.show-names .wp b{display:block}
.wp:hover i{background:var(--ink)}
.leaflet-tooltip.tip,.leaflet-popup.pop .leaflet-popup-content-wrapper{
  background:var(--panel); color:var(--ink); border:1px solid var(--rule); border-radius:3px; box-shadow:none
}
.leaflet-tooltip.tip{padding:4px 8px}
.leaflet-tooltip.tip:before{display:none}
.leaflet-popup.pop .leaflet-popup-tip{background:var(--panel); box-shadow:none; border:1px solid var(--rule)}
.leaflet-popup.pop .leaflet-popup-content{margin:10px 14px 12px; font-size:14px; line-height:1.4}
.leaflet-popup.pop a.leaflet-popup-close-button{color:var(--ink-2)}
.wpname{font:500 20px/1.05 var(--device); display:block}
.wpsym{color:var(--ink-2); display:block}
.wpll{font:400 16px/1.2 var(--device); color:var(--ink-3); display:block; margin-top:2px}
.pop a{color:var(--ink)}

/* ---------- strip ---------- */
#strip{grid-area:strip; border-top:1px solid var(--rule); background:var(--panel); position:relative; height:132px; outline:none}
#strip:focus-visible{outline:2px solid var(--ink); outline-offset:-3px}
#strip svg{position:absolute; inset:0; width:100%; height:100%; cursor:pointer; touch-action:pan-y}
#stripread{position:absolute; left:16px; top:10px; right:16px; pointer-events:none; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; z-index:2}
#stripread b{font:500 21px/1 var(--device); margin-right:10px}
#stripread span{color:var(--ink-2); font-size:14px}
.tick text,.zonelabel{font:500 13px var(--cond); fill:var(--ink-3)}

@media (max-width: 860px){
  body{display:flex; flex-direction:column; height:auto; overflow:auto}
  #panel{display:contents}
  #head{display:contents}
  #head > h1{order:1; margin:20px 18px 12px}
  #head > .lede, #head > .key{order:1; margin-left:18px; margin-right:18px}
  #overview{order:6; padding:0 18px 44px}
  #mapwrap{order:2; flex:none; height:62vh; height:62dvh; min-height:340px}
  #strip{order:3; flex:none}
  #detail{order:4; width:auto; max-height:none; margin:0; border-width:0 0 1px; border-radius:0; padding:18px 18px 20px}
  #lists{order:5; padding:0 18px 20px}
  h1{font-size:40px}
  #strip{height:120px}
  .layers{font-size:13px}
}
@media (prefers-reduced-motion: reduce){ *{scroll-behavior:auto!important} }