:root {
  color-scheme: dark;
  --paper: #0a0a0b;
  --ink: #e8e8ea;
  --text-muted: #8b8b93;
  --border: #2a2a30;
  --panel: #121214;
  --card: #1a1a1e;
  --accent: #5effc3;
  --accent-soft: #1a3d32;
  --warm: #d97757;
  --warm-soft: rgba(217, 119, 87, 0.18);
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --mono: "Cascadia Mono", Consolas, ui-monospace, monospace;
  --ease: cubic-bezier(.2, 0, 0, 1);
  --radius: 0;
}

*, *::before, *::after { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  min-height: 100svh;
  background: var(--paper);
  color: var(--ink);
  font: 400 14px/1.55 var(--sans);
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; background: none; border: 0; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
code { font-family: var(--mono); font-size: 0.92em; color: var(--accent); }
strong { color: var(--ink); font-weight: 600; }

.skip-link {
  position: fixed; top: -80px; left: 16px; z-index: 100;
  padding: 10px 16px; background: var(--ink); color: var(--paper);
}
.skip-link:focus { top: 12px; }

.topnav {
  position: fixed; inset: 0 0 auto 0; z-index: 40;
  height: 56px; display: flex; align-items: center; gap: 20px;
  padding: 0 24px; max-width: none;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  border-bottom: 1px solid var(--border);
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 500; letter-spacing: 0.02em; }
.brand-mark { width: 18px; height: 18px; color: var(--accent); }
.links { display: flex; gap: 18px; margin-left: auto; font-size: 13px; color: var(--text-muted); }
.links a:hover, .links a.is-on { color: var(--ink); }
.links a.is-on { box-shadow: inset 0 -2px 0 var(--accent); }

.stage { position: relative; width: 100%; height: 100svh; background: var(--paper); }
#c { display: block; width: 100%; height: 100%; touch-action: none; }
.label-layer {
  position: absolute; inset: 0; z-index: 5; pointer-events: none;
  overflow: hidden;
}

.panel {
  position: absolute; left: 24px; top: 80px; z-index: 20;
  width: min(360px, calc(100vw - 48px));
  padding: 22px 22px 18px;
  background: color-mix(in srgb, var(--panel) 92%, transparent);
  border: 1px solid var(--border);
  backdrop-filter: blur(8px);
  max-height: calc(100svh - 100px);
  overflow: auto;
}
.eyebrow {
  margin: 0 0 10px;
  font: 500 10px/1 var(--mono);
  letter-spacing: 0.14em;
  color: var(--accent);
  text-transform: uppercase;
}
.panel h1 {
  margin: 0 0 10px;
  font: 500 28px/1.15 var(--sans);
  letter-spacing: -0.02em;
}
.lede { margin: 0 0 16px; color: var(--text-muted); font-size: 13px; }
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 0; margin: 0 0 12px; border: 1px solid var(--border);
}
.stats > div { padding: 10px 8px; min-width: 0; }
.stats > div + div { border-left: 1px solid var(--border); }
.stats dt {
  margin: 0 0 6px;
  font: 500 9px/1 var(--mono);
  letter-spacing: 0.08em;
  color: var(--text-muted);
  text-transform: uppercase;
}
.stats dd {
  margin: 0;
  font: 500 15px/1.1 var(--mono);
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.pick-hud {
  margin: 0 0 14px;
  padding: 12px 12px 10px;
  border: 1px solid color-mix(in srgb, var(--accent) 35%, var(--border));
  background: color-mix(in srgb, var(--accent-soft) 55%, var(--panel));
}
.pick-hud.is-empty {
  border-color: var(--border);
  background: var(--card);
}
.pick-label {
  margin: 0 0 6px;
  font: 500 9px/1 var(--mono);
  letter-spacing: 0.12em;
  color: var(--accent);
  text-transform: uppercase;
}
.pick-hud.is-empty .pick-label { color: var(--text-muted); }
.pick-path {
  margin: 0 0 4px;
  font: 500 12px/1.35 var(--mono);
  color: var(--ink);
  word-break: break-all;
}
.pick-meta {
  margin: 0;
  font: 400 11px/1.3 var(--mono);
  color: var(--text-muted);
}

.row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.btn {
  padding: 8px 12px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--ink);
  font-size: 12px;
  transition: background .15s var(--ease), border-color .15s var(--ease), color .15s var(--ease);
}
.btn:hover { border-color: color-mix(in srgb, var(--accent) 45%, var(--border)); }
.btn.is-on {
  background: var(--accent-soft);
  border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
  color: var(--accent);
}
.btn.ghost { background: transparent; }
.hint { margin: 0; font-size: 11px; color: var(--text-muted); line-height: 1.5; }

.hud-corner {
  position: absolute; right: 20px; bottom: 18px; z-index: 20;
  display: flex; gap: 14px;
  font: 500 11px/1 var(--mono);
  color: var(--text-muted);
  letter-spacing: 0.04em;
}
.hud-corner span:first-child { color: var(--warm); }

/* CSS2D district street signs */
.district-label {
  padding: 5px 10px 4px;
  border: 1px solid color-mix(in srgb, var(--accent) 40%, var(--border));
  background: color-mix(in srgb, var(--panel) 88%, transparent);
  color: var(--accent);
  font: 600 11px/1.2 var(--mono);
  letter-spacing: 0.06em;
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
  text-shadow: 0 1px 2px rgba(0,0,0,0.65);
  transform: translate(-50%, -100%);
}
.district-label .sub {
  display: block;
  margin-top: 3px;
  font: 400 9px/1 var(--mono);
  letter-spacing: 0.04em;
  color: var(--text-muted);
}
.district-label.is-warm {
  border-color: color-mix(in srgb, var(--warm) 45%, var(--border));
  color: var(--warm);
}
.glyph-billboard {
  padding: 2px 6px;
  font: 600 10px/1 var(--mono);
  color: color-mix(in srgb, var(--accent) 70%, white);
  background: color-mix(in srgb, var(--panel) 70%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent);
  opacity: 0.75;
  pointer-events: none;
  white-space: nowrap;
  transform: translate(-50%, -50%);
}

@media (max-width: 720px) {
  .panel { left: 12px; right: 12px; width: auto; top: auto; bottom: 12px; max-height: 42svh; }
  .hud-corner { right: 12px; bottom: auto; top: 68px; }
  .panel h1 { font-size: 22px; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stats > div:nth-child(3), .stats > div:nth-child(4) { border-top: 1px solid var(--border); }
  .stats > div:nth-child(3) { border-left: 0; }
}