:root {
  --ink: #1b1f24;
  --muted: #4d5661;
  --bg: #ffffff;
  --panel: #f3f5f7;
  --line: #d5dae0;
  --peak: #0b5cad;
  --midday: #6b4fa0;
  --bus: #b3261e;
  --warn: #7a5600;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; }
header { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px; padding: 12px 16px; border-bottom: 1px solid var(--line); }
h1 { font-size: 1.15rem; margin: 0; }
h2 { font-size: 1.1rem; margin: 0 0 12px; }
main { max-width: 960px; margin: 0 auto; padding: 16px; }
[hidden] { display: none !important; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
select { font: inherit; padding: 8px 10px; border: 1px solid #6b7480; border-radius: 6px; background: #fff; max-width: 60vw; margin-left: auto; }
.muted { color: var(--muted); }
#status { font-size: 1.1rem; font-weight: 600; margin: 0; }
#status.off { color: var(--warn); }
#updated { margin: 2px 0 12px; min-height: 1.5em; }

form { display: grid; gap: 8px; max-width: 420px; margin-bottom: 8px; }
label { font-weight: 600; }
input { font: inherit; padding: 10px 12px; border: 1px solid #6b7480; border-radius: 6px; }
button { font: inherit; font-weight: 600; padding: 10px 14px; border: 1px solid var(--peak); border-radius: 6px; background: var(--peak); color: #fff; cursor: pointer; }
button[disabled] { opacity: 0.6; cursor: default; }
#signout { background: #fff; color: var(--peak); }
a { color: var(--peak); }
:focus-visible { outline: 3px solid #f5a623; outline-offset: 2px; }

#map { display: block; width: 100%; height: auto; background: var(--panel); border: 1px solid var(--line); border-radius: 8px; }
.leg { fill: none; stroke-width: 4; stroke-linecap: round; stroke-linejoin: round; }
.leg.peak { stroke: var(--peak); }
.leg.midday { stroke: var(--midday); stroke-dasharray: 9 7; }
.stop { fill: #fff; stroke: var(--ink); stroke-width: 3; }
.stop-label { font: 600 15px system-ui, sans-serif; fill: var(--ink); paint-order: stroke; stroke: var(--panel); stroke-width: 4px; }
.bus-halo { fill: var(--bus); opacity: 0.25; }
.bus-dot { fill: var(--bus); stroke: #fff; stroke-width: 3; }

.legend { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 14px; margin: 8px 0 0; font-size: 0.9rem; }
.key { display: inline-block; width: 26px; height: 0; border-top: 4px solid var(--peak); margin-right: 4px; vertical-align: middle; }
.key.midday { border-top: 4px dashed var(--midday); }
.key.dot { width: 12px; height: 12px; border: 0; border-radius: 50%; background: var(--bus); }

#strip { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 10px; margin: 0 0 12px; font-weight: 600; }
.track { position: relative; height: 6px; border-radius: 3px; background: var(--line); }
#strip-dot { position: absolute; top: 50%; width: 16px; height: 16px; margin: -8px 0 0 -8px; border-radius: 50%; background: var(--bus); border: 2px solid #fff; }
@media (min-width: 700px) { #strip { display: none !important; } }