:root {
  --bg: #070b1a;
  --panel: rgba(13, 18, 38, 0.86);
  --panel-edge: rgba(140, 170, 255, 0.14);
  --ink: #e8ecf8;
  --ink-dim: #93a0c4;
  --ink-faint: #5a6688;
  --accent: #7cffc4;
  --accent2: #6aa6ff;
  --mono: "JetBrains Mono", ui-monospace, monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body {
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--ink);
  font-family: "Inter", system-ui, sans-serif;
}

#map {
  position: fixed;
  inset: 0;
  display: block;
  cursor: crosshair;
}

/* ---------- panel ---------- */

#panel {
  position: fixed;
  top: 24px;
  left: 24px;
  width: 320px;
  max-height: calc(100vh - 48px);
  overflow-y: auto;
  background: var(--panel);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--panel-edge);
  border-radius: 18px;
  padding: 26px 24px 18px;
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.55);
  scrollbar-width: thin;
  scrollbar-color: #2a3354 transparent;
}

#panel header { margin-bottom: 20px; }

.kicker {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 6px;
}

h1 {
  font-family: "Fraunces", Georgia, serif;
  font-weight: 300;
  font-size: 44px;
  line-height: 1;
  letter-spacing: -0.01em;
  background: linear-gradient(100deg, #eaf2ff 20%, #7cffc4 65%, #6aa6ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 10px;
}

.sub {
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--ink-dim);
}

.block { margin-bottom: 18px; }

.label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 9px;
}

.label .no {
  text-transform: none;
  letter-spacing: 0.04em;
  font-style: italic;
  color: #424d70;
  margin-left: 6px;
}

/* ---------- city chips ---------- */

.chips { display: flex; flex-wrap: wrap; gap: 7px; }

.chip {
  font: 500 12.5px "Inter", sans-serif;
  color: var(--ink-dim);
  background: rgba(120, 150, 230, 0.07);
  border: 1px solid rgba(120, 150, 230, 0.18);
  border-radius: 999px;
  padding: 7px 14px;
  cursor: pointer;
  transition: all 0.18s ease;
}

.chip:hover { color: var(--ink); border-color: rgba(124, 255, 196, 0.4); }

.chip.active {
  color: #06251a;
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 18px rgba(124, 255, 196, 0.35);
}

.chip.disabled { opacity: 0.3; pointer-events: none; }

/* ---------- mode toggles ---------- */

.modes { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; }

.mode {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 11px;
  border-radius: 11px;
  border: 1px solid rgba(120, 150, 230, 0.16);
  background: rgba(120, 150, 230, 0.05);
  cursor: pointer;
  transition: all 0.18s ease;
  user-select: none;
}

.mode .ic {
  width: 26px; height: 26px;
  display: grid; place-items: center;
  border-radius: 8px;
  background: rgba(120, 150, 230, 0.1);
  transition: all 0.18s ease;
}

.mode .ic svg { width: 15px; height: 15px; stroke: var(--ink-dim); fill: none; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; transition: stroke 0.18s; }

.mode .tx { font-size: 12px; font-weight: 500; color: var(--ink-dim); }
.mode .tx small { display: block; font-size: 10px; font-weight: 400; color: var(--ink-faint); font-style: italic; }

.mode.on { border-color: rgba(124, 255, 196, 0.35); background: rgba(124, 255, 196, 0.06); }
.mode.on .ic { background: rgba(124, 255, 196, 0.14); }
.mode.on .ic svg { stroke: var(--accent); }
.mode.on .tx { color: var(--ink); }

.mode.off { opacity: 0.55; }

/* ---------- legend ---------- */

.legend canvas { width: 100%; height: 14px; border-radius: 7px; display: block; }

.legend-ticks {
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 9.5px;
  color: var(--ink-faint);
  margin-top: 5px;
}

/* ---------- readout ---------- */

#readout {
  min-height: 64px;
  border-top: 1px solid rgba(120, 150, 230, 0.12);
  padding-top: 14px;
}

.readout-idle { font-size: 11.5px; color: var(--ink-faint); line-height: 1.6; font-style: italic; }

.route-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 10px;
}

.route-dest { font-family: "Fraunces", serif; font-size: 17px; font-weight: 600; }

.route-time {
  font-family: var(--mono);
  font-size: 15px;
  color: var(--accent);
}

.leg {
  display: flex;
  gap: 10px;
  padding: 4px 0 4px;
  font-size: 11.5px;
  color: var(--ink-dim);
  border-left: 2px solid rgba(124, 255, 196, 0.25);
  margin-left: 5px;
  padding-left: 12px;
  position: relative;
}

.leg::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 10px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--accent);
}

.leg .lmode {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent2);
  min-width: 44px;
  padding-top: 2px;
}

.leg .ldesc { flex: 1; line-height: 1.45; }
.leg .ltime { font-family: var(--mono); font-size: 10.5px; color: var(--ink-faint); white-space: nowrap; padding-top: 1px; }

/* ---------- quickest / slowest route groups ---------- */

.rg { margin-bottom: 14px; }

.rg-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 6px;
}

.rg-title {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.rg-title i {
  text-transform: none;
  letter-spacing: 0.04em;
  font-style: italic;
  color: var(--ink-faint);
  margin-left: 4px;
}

.rg-time { font-family: var(--mono); font-size: 13px; }

.rg.fast .rg-title, .rg.fast .rg-time { color: var(--accent); }
.rg.slow .rg-title, .rg.slow .rg-time { color: #ff8a7a; }
.rg.slow .leg { border-left-color: rgba(255, 138, 122, 0.25); }
.rg.slow .leg::before { border-color: #ff8a7a; }

/* ---------- footer ---------- */

footer {
  border-top: 1px solid rgba(120, 150, 230, 0.12);
  padding-top: 12px;
  margin-top: 4px;
  font-size: 10.5px;
  color: var(--ink-faint);
}

#statnote { font-family: var(--mono); font-size: 9.5px; display: block; margin-bottom: 8px; color: #424d70; }

footer summary { cursor: pointer; color: var(--ink-dim); outline: none; }
footer details p { margin-top: 8px; line-height: 1.6; }

/* ---------- tooltip ---------- */

#tooltip {
  position: fixed;
  pointer-events: none;
  background: rgba(10, 14, 30, 0.92);
  border: 1px solid rgba(124, 255, 196, 0.3);
  border-radius: 10px;
  padding: 7px 11px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
  z-index: 10;
  white-space: nowrap;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.5);
}

#tooltip .place { color: var(--ink-dim); font-size: 10px; display: block; }

@media (max-width: 720px) {
  #panel { left: 12px; right: 12px; top: auto; bottom: 12px; width: auto; max-height: 46vh; padding: 18px; }
  h1 { font-size: 32px; }
}