:root {
  --paper: #f2ecdf;
  --paper-2: #f7f3ea;
  --land-cn: #e4d9bf;
  --land: #ebe5d6;
  --border: #8a7f6a;
  --prov: #cdbfa4;
  --coast: #b9ac92;
  --ink: #1f1b16;
  --soft: #5a5246;
  --muted: #8b8272;
  --hair: #d6cdb8;
  --red: #7a1f35;
  --blue: #1f3358;
  --green: #1e5a3c;
  --gold: #9a7b2f;
  --plum: #5b3a6b;
  --serif: "Songti SC", "Noto Serif SC", "Source Han Serif SC", "STSong", Georgia, serif;
  --sans: "PingFang SC", "Noto Sans SC", "Hiragino Sans GB", system-ui, sans-serif;
  --mono: "Roboto Mono", ui-monospace, SFMono-Regular, monospace;
  --bar: 56px;
  --card: 380px;
  --gut: clamp(16px, 3.5vw, 48px);
}

* { box-sizing: border-box; }
html { scroll-behavior: auto; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.7 var(--sans);
  -webkit-font-smoothing: antialiased;
}
button, input, select { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--red); outline-offset: 2px; }

/* ---------- top bar ---------- */
.bar {
  position: fixed; inset: 0 0 auto 0; z-index: 20; height: var(--bar);
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 0 var(--gut);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--hair);
}
.brand { display: flex; align-items: baseline; gap: 10px; color: var(--ink); text-decoration: none; white-space: nowrap; }
.brand-zh { font: 600 22px/1 var(--serif); letter-spacing: .12em; }
.brand-sub { font: 12px/1 var(--mono); color: var(--soft); letter-spacing: .04em; }
.controls { display: flex; align-items: center; gap: 14px; font-family: var(--mono); font-size: 13px; }
.ctl { position: relative; display: flex; align-items: center; gap: 8px; }
.ctl-label { color: var(--muted); font-size: 12px; }
select, #poet-input {
  height: 34px; min-height: 34px; border: 1px solid var(--hair); background: var(--paper-2);
  border-radius: 2px; padding: 0 10px; font-family: var(--mono); font-size: 13px;
}
select { padding-right: 24px; appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--soft) 50%), linear-gradient(135deg, var(--soft) 50%, transparent 50%); background-position: calc(100% - 13px) 15px, calc(100% - 9px) 15px; background-size: 4px 4px; background-repeat: no-repeat; cursor: pointer; }
#poet-input { width: 180px; }
#poet-list {
  position: absolute; top: 40px; right: 0; width: 260px; max-height: 60vh; overflow: auto;
  margin: 0; padding: 4px 0; list-style: none; background: var(--paper-2);
  border: 1px solid var(--hair); box-shadow: 0 8px 24px rgba(60, 45, 20, .12);
}
#poet-list li { display: flex; justify-content: space-between; gap: 10px; padding: 7px 12px; cursor: pointer; }
#poet-list li[aria-selected="true"], #poet-list li:hover { background: var(--land-cn); }
#poet-list .nm { font-family: var(--serif); font-size: 15px; }
#poet-list .meta { color: var(--muted); font-size: 11px; }
#poet-list .star { color: var(--red); }
.lang {
  height: 34px; min-width: 44px; border: 1px solid var(--ink); background: transparent; border-radius: 2px;
  cursor: pointer; font-family: var(--mono); font-size: 12px; letter-spacing: .06em;
}
.lang:hover { background: var(--ink); color: var(--paper); }

/* ---------- scrollytelling ---------- */
.scrolly { position: relative; }
.stage {
  position: sticky; top: 0; height: 100svh; overflow: hidden; background: var(--paper);
}
#map, #routes, #overlay { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
#routes, #overlay { pointer-events: none; }
.sea { fill: var(--paper); }
.land { fill: var(--land); stroke: none; }
.land.cn { fill: var(--land-cn); }
.border { fill: none; stroke: var(--border); stroke-width: .8; vector-effect: non-scaling-stroke; stroke-linejoin: round; }
.coast { fill: none; stroke: var(--coast); stroke-width: .6; vector-effect: non-scaling-stroke; }
.prov { fill: none; stroke: var(--prov); stroke-width: .55; vector-effect: non-scaling-stroke; transition: opacity .5s; }
.city-dot { fill: var(--muted); }
.city-label { font: 11.5px var(--serif); fill: var(--soft); paint-order: stroke; stroke: var(--paper); stroke-width: 3px; stroke-linejoin: round; }

.route { fill: none; stroke-linecap: round; stroke-linejoin: round; }
.route.ghost { stroke-opacity: .18; stroke-dasharray: 2 4; }
.stop { stroke: var(--paper); stroke-width: 1.2; }
.stop.future { fill: var(--paper) !important; stroke-width: 1; }
.halo { fill: none; stroke-width: 1; opacity: .35; }
.place-label { font: 13px var(--serif); fill: var(--ink); paint-order: stroke; stroke: var(--paper); stroke-width: 3.5px; stroke-linejoin: round; }
.place-label.small { font-size: 11px; fill: var(--soft); }
.place-label .yr { font: 10px var(--mono); fill: var(--muted); }
.poet-tag { font: 600 14px var(--serif); paint-order: stroke; stroke: var(--paper); stroke-width: 4px; }
.alt-link { fill: none; stroke-dasharray: 3 3; stroke-width: 1; opacity: .55; }
.alt-birth { fill: none; stroke-dasharray: 2.5 2.5; stroke-width: 1.4; }

.scale { position: absolute; right: var(--gut); bottom: 18px; font: 11px var(--mono); color: var(--muted); }
.scale i { display: block; height: 5px; border: 1px solid var(--muted); border-top: 0; margin-bottom: 3px; }

.steps { position: relative; margin-top: -100svh; z-index: 5; pointer-events: none; }
.step {
  min-height: 100svh; display: flex; align-items: center;
  padding: calc(var(--bar) + 24px) var(--gut) 24px;
}
.step:first-child { min-height: 100svh; }
.step:last-child { min-height: 110svh; }
.card {
  pointer-events: auto; width: var(--card); max-width: 100%;
  background: color-mix(in srgb, var(--paper-2) 94%, transparent);
  border: 1px solid var(--hair); padding: 22px 24px;
  box-shadow: 0 1px 0 rgba(255,255,255,.6) inset, 0 10px 30px rgba(70, 52, 20, .08);
}
.kicker { font: 11px/1.4 var(--mono); color: var(--muted); letter-spacing: .08em; text-transform: uppercase; margin: 0 0 10px; }
.card h2 { font: 600 30px/1.2 var(--serif); margin: 0 0 6px; letter-spacing: .04em; }
.card h3 { font: 600 21px/1.35 var(--serif); margin: 0 0 10px; }
.card .en-name { font: 13px var(--mono); color: var(--soft); margin: 0 0 14px; }
.card p { margin: 0 0 12px; }
.card p.lead { font: 19px/1.6 var(--serif); }
.card ul.events { margin: 0 0 12px; padding-left: 1.1em; }
.card ul.events li { margin: 0 0 4px; }
.card .poem { border-left: 2px solid var(--red); padding: 2px 0 2px 12px; margin: 14px 0 6px; font-family: var(--serif); }
.card .poem .t { font-size: 13px; color: var(--soft); }
.card .poem .x { font-size: 16px; line-height: 1.8; }
.card .stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px 16px; margin: 16px 0 6px; font-family: var(--mono); }
.card .stats b { display: block; font: 500 22px/1.1 var(--mono); color: var(--red); }
.card .stats span { font-size: 11px; color: var(--muted); }
.card .chips { display: flex; flex-wrap: wrap; gap: 4px 6px; margin-top: 12px; }
.card .chips span { font: 11px var(--mono); color: var(--soft); border: 1px solid var(--hair); padding: 1px 6px; }
.card .src { font: 11px/1.6 var(--mono); color: var(--muted); margin-top: 14px; border-top: 1px solid var(--hair); padding-top: 10px; }
.card .note { font-size: 13px; color: var(--soft); }
.card .raw-note { font: 11px var(--mono); color: var(--gold); }
.btns { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.btn {
  border: 1px solid var(--ink); background: transparent; padding: 8px 14px; cursor: pointer; min-height: 40px;
  font: 13px var(--mono); border-radius: 2px;
}
.btn.primary { background: var(--ink); color: var(--paper); }
.btn:hover { background: var(--red); border-color: var(--red); color: var(--paper); }
.poet-link { color: inherit; text-decoration: none; border-bottom: 1.5px solid currentColor; cursor: pointer; background: none; border-top: 0; border-left: 0; border-right: 0; padding: 0; font: inherit; }
.swatch { display: inline-block; width: 18px; height: 3px; vertical-align: middle; margin-right: 6px; }

.colophon { position: relative; z-index: 6; background: var(--paper); border-top: 1px solid var(--hair); padding: 28px var(--gut) 48px; font: 12px/1.8 var(--mono); color: var(--soft); }
.colophon p { max-width: 60rem; margin: 0; }
.colophon a { color: var(--ink); }

.loading { position: absolute; inset: 0; display: grid; place-items: center; font: 13px var(--mono); color: var(--muted); }

@media (max-width: 760px) {
  :root { --bar: 96px; }
  .bar { flex-direction: column; align-items: stretch; justify-content: center; gap: 8px; padding-top: 8px; padding-bottom: 8px; }
  .controls { justify-content: space-between; gap: 8px; }
  #poet-input { width: 100%; }
  .combo { flex: 1; }
  .ctl-label { display: none; }
  .step { align-items: flex-end; padding-bottom: 16px; }
  .card { width: 100%; padding: 16px 18px; max-height: 46svh; overflow: auto; }
  .card h2 { font-size: 24px; }
  .brand-sub { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}