:root {
  --bg: #101418;
  --panel: #171d22;
  --panel-soft: #1e252c;
  --text: #eef2f6;
  --muted: #9aa5b1;
  --line: #2f3942;
  --accent: #4fb7a5;
  --accent-2: #d4b46a;
  --danger: #e35d5d;
  --pending: #2b3036;
}

* { box-sizing: border-box; }

html,
body {
  width: 100%;
  min-height: 100%;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

.app-shell {
  min-height: 100vh;
  padding: 20px;
}

.is-hidden {
  display: none !important;
}

.start-screen {
  display: grid;
  grid-template-columns: minmax(260px, 0.85fr) minmax(320px, 1.15fr);
  gap: 28px;
  align-items: center;
  min-height: calc(100vh - 40px);
}

.brand-block {
  max-width: 680px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent-2);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 16px;
  font-size: clamp(42px, 7vw, 82px);
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(24px, 3vw, 38px);
  line-height: 1.15;
  letter-spacing: 0;
}

.brand-block p:not(.eyebrow),
.result-copy p:not(.eyebrow) {
  color: var(--muted);
  line-height: 1.75;
}

.mode-grid {
  display: grid;
  gap: 12px;
}

.mode-card {
  display: grid;
  gap: 8px;
  width: 100%;
  min-height: 132px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--text);
  text-align: left;
}

.mode-card:hover:not(:disabled) {
  border-color: var(--accent);
  background: #1b272b;
}

.mode-card span {
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
}

.mode-card strong {
  font-size: 22px;
  letter-spacing: 0;
}

.mode-card.is-disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.game-screen {
  display: grid;
  gap: 16px;
}

.topbar {
  display: flex;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  min-height: 82px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
}

.top-actions,
.result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.primary-button,
.ghost-button {
  min-height: 42px;
  padding: 0 16px;
  border-radius: 6px;
  border: 1px solid transparent;
  color: var(--text);
  font-weight: 700;
}

.primary-button {
  background: var(--accent);
  color: #061312;
}

.ghost-button {
  background: transparent;
  border-color: var(--line);
}

.play-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  gap: 16px;
  height: clamp(620px, calc(100vh - 138px), 780px);
  min-height: 620px;
}

.map-slot,
.map-panel {
  height: 100%;
  min-height: 520px;
}

.map-panel {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #0b0f12;
}

.status-panel {
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.reference-panel {
  display: grid;
  gap: 6px;
  padding: 8px;
  border-radius: 6px;
  background: var(--panel-soft);
}

.reference-panel span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.reference-preview {
  display: grid;
  place-items: center;
  width: 100%;
  aspect-ratio: 16 / 9;
  min-height: 88px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #10161a;
  overflow: hidden;
}

.reference-preview svg {
  display: block;
  width: 100%;
  height: 100%;
}

.reference-preview path {
  fill: #4fb7a5;
  fill-opacity: 0.68;
  stroke: #d7e1e8;
  stroke-width: 1.8;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
}

.stat-row,
.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 44px;
  padding: 0 10px;
  border-radius: 6px;
  background: var(--panel-soft);
  color: var(--muted);
}

.stat-row strong {
  color: var(--text);
  font-size: 22px;
  letter-spacing: 0;
}

.toggle-row {
  cursor: pointer;
  color: var(--text);
}

.toggle-row input {
  width: 20px;
  height: 20px;
  accent-color: var(--danger);
}

.legend-block {
  display: grid;
  gap: 8px;
  padding: 10px;
  color: var(--muted);
  font-size: 13px;
}

.legend-item {
  display: flex;
  gap: 8px;
  align-items: center;
}

.swatch {
  display: inline-block;
  width: 14px;
  height: 14px;
  border-radius: 3px;
}

.swatch.pending { background: var(--pending); }
.swatch.correct { background: var(--accent); }
.swatch.miss { background: #d28d46; }

.leaflet-container {
  background: #0b0f12;
}

.leaflet-pane,
.leaflet-tile,
.leaflet-marker-icon,
.leaflet-marker-shadow,
.leaflet-tile-container,
.leaflet-pane > svg,
.leaflet-pane > canvas,
.leaflet-zoom-box,
.leaflet-image-layer,
.leaflet-layer {
  position: absolute;
  left: 0;
  top: 0;
}

.leaflet-container {
  overflow: hidden;
  outline-offset: 1px;
  position: relative;
  touch-action: none;
}

.leaflet-map-pane {
  z-index: 400;
}

.leaflet-tile-pane {
  z-index: 200;
}

.leaflet-overlay-pane {
  z-index: 400;
}

.leaflet-shadow-pane {
  z-index: 500;
}

.leaflet-marker-pane {
  z-index: 600;
}

.leaflet-tooltip-pane {
  z-index: 650;
}

.leaflet-popup-pane {
  z-index: 700;
}

.leaflet-control {
  position: relative;
  z-index: 800;
  pointer-events: auto;
}

.leaflet-top,
.leaflet-bottom {
  position: absolute;
  z-index: 1000;
  pointer-events: none;
}

.leaflet-top {
  top: 0;
}

.leaflet-bottom {
  bottom: 0;
}

.leaflet-left {
  left: 0;
}

.leaflet-right {
  right: 0;
}

.leaflet-control-zoom {
  margin: 10px;
}

.leaflet-control-zoom a {
  display: block;
  width: 30px;
  height: 30px;
  border-bottom: 1px solid #26313a;
  background: #111820;
  color: var(--text);
  line-height: 30px;
  text-align: center;
  text-decoration: none;
}

.leaflet-interactive {
  cursor: pointer;
  pointer-events: visiblePainted;
}

.leaflet-tooltip {
  position: absolute;
  pointer-events: none;
}

.answered-label {
  color: #fff;
  position: absolute;
  left: 50%;
  top: 50%;
  font-weight: 800;
  line-height: 1;
  text-align: center;
  text-shadow:
    -1px -1px 0 #020304,
    1px -1px 0 #020304,
    -1px 1px 0 #020304,
    1px 1px 0 #020304,
    0 0 4px #020304;
  white-space: nowrap;
  pointer-events: none;
}

.answered-label.area-code-label {
  color: #fff8d6;
  font-weight: 900;
  text-shadow:
    -2px -2px 0 #020304,
    2px -2px 0 #020304,
    -2px 2px 0 #020304,
    2px 2px 0 #020304,
    0 0 8px #020304;
}

.leaflet-tooltip.answered-tooltip {
  border: 0;
  background: transparent;
  box-shadow: none;
  padding: 0;
}

.leaflet-tooltip.area-code-tooltip {
  z-index: 680;
}

.result-screen {
  display: grid;
  gap: 18px;
  align-content: center;
  min-height: calc(100vh - 40px);
  max-width: 1040px;
  margin: 0 auto;
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(120px, 1fr));
  gap: 10px;
}

.result-card {
  display: grid;
  gap: 8px;
  min-height: 112px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.result-card span {
  color: var(--muted);
}

.result-card strong {
  font-size: 32px;
  letter-spacing: 0;
}

.result-map-wrap {
  display: grid;
  gap: 8px;
}

.result-map-slot {
  height: min(52vh, 520px);
  min-height: 360px;
}

.result-map-slot .map-panel {
  min-height: 360px;
}

@media (max-width: 900px) {
  .start-screen,
  .play-layout {
    grid-template-columns: 1fr;
  }

  .play-layout {
    min-height: 0;
    height: auto;
  }

  .map-slot,
  .map-panel {
    height: 58vh;
    min-height: 58vh;
  }

  .result-map-slot,
  .result-map-slot .map-panel {
    height: 48vh;
    min-height: 340px;
  }

  .status-panel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .legend-block {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  .app-shell {
    padding: 12px;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .status-panel,
  .result-grid {
    grid-template-columns: 1fr;
  }
}