:root {
  --night: #101a21; --slate: #16232c; --raised: #1e303b; --line: #2e4350;
  --fog: #e6ede8; --mist: #9db0b5; --lantern: #ffe9b0; --orange: #f08a4b; --blue: #62a8ea; --blame: #ee6fae;
  --ridge: #9fb79a;
  --body: "Figtree", system-ui, -apple-system, "Segoe UI", sans-serif;
  --display: "Fraunces", Georgia, "Times New Roman", serif;
  --sums: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--night); color: var(--fog); font: 16px/1.5 var(--body); }
body { overflow-x: hidden; }
a { color: var(--lantern); text-underline-offset: 3px; }
:focus-visible { outline: 3px solid var(--lantern); outline-offset: 2px; border-radius: 4px; }

.top { display: flex; align-items: baseline; gap: 18px; padding: 10px 20px; border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 10px; color: var(--fog); text-decoration: none; font: 600 26px/1 var(--display); letter-spacing: -0.01em; min-height: 40px; }
.tag { margin: 0; color: var(--mist); font-size: 15px; }

#stage { display: flex; flex-direction: column; min-width: 0; }
#cvwrap { position: relative; height: var(--cvh, 350px); }
#cv { position: absolute; inset: 0; width: 100%; height: 100%; display: block; touch-action: manipulation; }

#controls { display: flex; flex-wrap: wrap; gap: 8px 10px; align-items: center; padding: 10px 16px; border-top: 1px solid var(--line); }
#controls:empty, #readout:empty { display: none; }
button, select, input { font: inherit; }
.b { min-height: 40px; min-width: 40px; padding: 6px 14px; border-radius: 20px; border: 1px solid var(--line); background: var(--raised); color: var(--fog); font-weight: 600; font-size: 15px; cursor: pointer; }
.b:hover { border-color: var(--mist); }
.b.go { background: var(--lantern); border-color: var(--lantern); color: #1b1608; }
.b[aria-pressed="true"] { background: #33505f; border-color: var(--lantern); color: var(--lantern); }
.b:disabled { opacity: 0.45; cursor: default; }
.seg { display: inline-flex; flex-wrap: wrap; align-items: center; gap: 4px; }
.seg > span, .rng > span { color: var(--mist); font-size: 14px; margin-right: 4px; }
.seg .b { border-radius: 8px; padding: 6px 10px; }
.rng { display: inline-flex; align-items: center; gap: 8px; min-height: 40px; flex: 1 1 250px; max-width: 420px; }
.rng input { flex: 1; min-width: 90px; height: 40px; accent-color: var(--lantern); margin: 0; }
.rng output { font-variant-numeric: tabular-nums; min-width: 3.2em; font-weight: 600; color: var(--lantern); }
.chk { display: inline-flex; align-items: center; gap: 8px; min-height: 40px; padding: 0 6px; cursor: pointer; font-size: 15px; }
.chk input { width: 20px; height: 20px; accent-color: var(--lantern); margin: 0; }
select.b { border-radius: 8px; padding-right: 8px; }

#readout { padding: 10px 16px 12px; border-top: 1px solid var(--line); background: var(--slate); font-size: 14px; }
#readout p { margin: 0 0 4px; }
#readout .big { font-size: 16px; }
#readout .big b { color: var(--lantern); font-variant-numeric: tabular-nums; }
.led { margin: 4px 0 0; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 2px 18px; font: 13px/1.55 var(--sums); color: #cfdad6; }
.led.wide { grid-template-columns: 1fr; }
.led li { overflow-wrap: anywhere; }
.led .back { color: #f6a5cd; }
.led .hot { color: var(--lantern); }
.led .dim { color: var(--mist); }
.sample { font: 14px/1.5 var(--sums); color: var(--lantern); overflow-wrap: anywhere; }

#panel { padding: 18px 22px 20px; background: var(--slate); border-top: 1px solid var(--line); }
.count { margin: 0; color: var(--mist); font-size: 14px; }
#panel h1 { font: 600 30px/1.12 var(--display); letter-spacing: -0.015em; margin: 2px 0 10px; }
#panel h2 { font: 700 14px/1.3 var(--body); color: var(--ridge); margin: 16px 0 3px; }
#panel p, #panel li { margin: 0 0 8px; font-size: 15.5px; line-height: 1.5; max-width: 62ch; }
#panel ol, #panel ul { margin: 0 0 8px; padding-left: 20px; }
#panel b { color: #fff; font-weight: 600; }
#panel .o { color: var(--orange); font-weight: 600; } #panel .bl { color: var(--blue); font-weight: 600; } #panel .pk { color: var(--blame); font-weight: 600; }
.starts { display: grid; gap: 6px; margin: 8px 0 4px; }
.starts a { display: flex; justify-content: space-between; align-items: center; gap: 10px; min-height: 44px; padding: 8px 12px; border: 1px solid var(--line); border-radius: 8px; background: var(--raised); color: var(--fog); text-decoration: none; font-weight: 600; }
.starts a:hover { border-color: var(--lantern); }
.starts a small { color: var(--mist); font-weight: 400; text-align: right; }
.foot { margin-top: 20px; padding-top: 12px; border-top: 1px solid var(--line); }
#panel .foot p { font-size: 14px; color: var(--mist); margin: 0 0 2px; }
.foot a { display: inline-block; padding: 10px 2px; }

#trail { position: sticky; bottom: 0; z-index: 5; display: flex; align-items: center; gap: 10px; padding: 8px 12px; background: #0c151b; border-top: 1px solid var(--line); }
.nb { min-height: 44px; min-width: 72px; padding: 6px 16px; border-radius: 22px; border: 1px solid var(--line); background: var(--raised); color: var(--fog); font-weight: 700; cursor: pointer; }
.nb.go { background: var(--lantern); border-color: var(--lantern); color: #1b1608; }
.nb:disabled { opacity: 0.35; cursor: default; }
#way { display: none; }
#jump { flex: 1; min-width: 0; min-height: 44px; border-radius: 8px; border: 1px solid var(--line); background: var(--raised); color: var(--fog); padding: 0 10px; }

@media (min-width: 900px) {
  html, body { height: 100%; }
  body { display: grid; grid-template-rows: auto minmax(0, 1fr) auto; overflow: hidden; }
  main { display: grid; grid-template-columns: minmax(0, 1fr) 410px; min-height: 0; }
  #stage { min-height: 0; }
  #cvwrap { flex: 1 1 auto; height: auto; min-height: 280px; }
  #readout { max-height: 36%; overflow: auto; flex: 0 0 auto; }
  #panel { border-top: 0; border-left: 1px solid var(--line); overflow: auto; }
  #jump { display: none; }
  #way { display: flex; flex: 1; position: relative; height: 66px; min-width: 0; }
  #way svg { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
  .wp { flex: 1 1 0; min-width: 40px; height: 66px; position: relative; background: none; border: 0; color: var(--mist); font: 500 12px/1 var(--body); cursor: pointer; padding: 0; }
  .wp i { position: absolute; left: 50%; top: var(--y); width: 12px; height: 12px; margin: -6px 0 0 -6px; border-radius: 50%; background: #0c151b; border: 2px solid var(--ridge); }
  .wp span { position: absolute; left: 0; right: 0; bottom: 5px; text-align: center; white-space: nowrap; }
  .wp.seen i { background: var(--ridge); }
  .wp:hover { color: var(--fog); }
  .wp[aria-current="true"] { color: var(--lantern); font-weight: 700; }
  .wp[aria-current="true"] i { background: var(--lantern); border-color: var(--lantern); box-shadow: 0 0 0 5px rgba(255, 233, 176, 0.18), 0 0 16px 4px rgba(255, 233, 176, 0.35); }
}
@media (max-width: 899px) {
  .top { padding: 8px 14px; flex-wrap: wrap; gap: 0 12px; }
  .tag { font-size: 14px; }
  #panel { padding: 16px 16px 18px; }
  #panel h1 { font-size: 27px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; scroll-behavior: auto !important; } }