:root {
  --bg: #091018;
  --panel: #101721;
  --panel-2: #161f2c;
  --line: rgba(255,255,255,.08);
  --text: #eef5ff;
  --muted: #a1b0c4;
  --gold: #ffd65c;
  --att: #1b7bff;
  --tmobile: #f500be;
  --verizon: #ff1e16;
  --none: #7e8896;
  --radius: 20px;
  --shadow: 0 26px 56px rgba(0,0,0,.36);
  --font-ui: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: "Courier New", Courier, monospace;
}
* { box-sizing: border-box; }
html, body { min-height: 100%; }
body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(27,123,255,.14), transparent 28rem),
    radial-gradient(circle at bottom right, rgba(245,0,190,.10), transparent 28rem),
    linear-gradient(135deg, #091018 0%, #0b131d 55%, #121b28 100%);
  font-family: var(--font-ui);
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.028) 1px, transparent 1px);
  background-size: 22px 22px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.9), rgba(0,0,0,.18));
}
.page-shell {
  display: grid;
  grid-template-columns: minmax(340px, 400px) 1fr;
  gap: 20px;
  min-height: 100vh;
  padding: 20px;
}
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.panel {
  padding: 20px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(16,23,33,.96), rgba(10,15,22,.96));
  box-shadow: var(--shadow);
}
.eyebrow {
  margin-bottom: 12px;
  color: var(--gold);
  font-family: var(--font-display);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
}
h1, h2, p { margin-top: 0; }
h1 {
  margin-bottom: 14px;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.05rem);
  line-height: .94;
  letter-spacing: -.05em;
}
h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: .95rem;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.lead, .muted, .status-line { color: var(--muted); line-height: 1.6; }
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}
.live-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: #4ef19d;
  box-shadow: 0 0 14px rgba(78,241,157,.85);
}
.route-form {
  display: grid;
  gap: 10px;
}
.route-form label {
  color: var(--muted);
  font-size: .76rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.route-form input {
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 12px;
  outline: none;
  background: #0a1018;
  color: var(--text);
  font: 600 1rem var(--font-ui);
}
.route-form input:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 4px rgba(255,214,92,.12);
}
.route-form button {
  min-height: 50px;
  margin-top: 8px;
  border: 0;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--gold), #ff9542);
  color: #12151c;
  font: 800 .95rem var(--font-ui);
  letter-spacing: .08em;
  text-transform: uppercase;
  cursor: pointer;
}
.route-form button:disabled { opacity: .65; cursor: wait; }
.layer-list {
  display: grid;
  gap: 10px;
}
.layer-card {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 50px;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.035);
}
.layer-card input { accent-color: currentColor; }
.layer-card span { color: var(--text); font-weight: 700; }
.card-att { color: var(--att); }
.card-tmobile { color: var(--tmobile); }
.card-verizon { color: var(--verizon); }
.legend-grid {
  display: grid;
  gap: 10px;
  margin-top: 16px;
  color: var(--muted);
  font-size: .93rem;
}
.legend-grid div {
  display: flex;
  align-items: center;
  gap: 10px;
}
.legend-chip {
  width: 18px;
  height: 18px;
  border-radius: 6px;
}
.chip-att { background: rgba(27,123,255,.8); }
.chip-tmobile { background: rgba(245,0,190,.75); }
.chip-verizon { background: rgba(255,30,22,.76); }
.chip-none { background: rgba(126,136,150,.72); }
.results-list {
  display: grid;
  gap: 12px;
}
.result-card {
  padding: 14px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.03);
}
.result-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
  font-weight: 700;
}
.meter { width: 100%; height: 12px; }
.meter::-webkit-progress-bar {
  background: rgba(255,255,255,.08);
  border-radius: 999px;
}
.meter::-webkit-progress-value { border-radius: 999px; }
.meter.att::-webkit-progress-value { background: var(--att); }
.meter.tmobile::-webkit-progress-value { background: var(--tmobile); }
.meter.verizon::-webkit-progress-value { background: var(--verizon); }
.meter.none::-webkit-progress-value { background: var(--none); }
.map-column { min-width: 0; }
.map-frame {
  position: relative;
  min-height: calc(100vh - 40px);
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
#map { width: 100%; height: 100%; min-height: calc(100vh - 40px); }
.map-top-note {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 500;
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--muted);
  background: rgba(10,15,22,.88);
  border: 1px solid rgba(255,255,255,.08);
  backdrop-filter: blur(8px);
  font-size: .8rem;
}
.leaflet-control-attribution { font-size: .72rem; }
@media (max-width: 1080px) {
  .page-shell { grid-template-columns: 1fr; }
  .map-frame, #map { min-height: 64vh; }
}