:root {
  color-scheme: dark;
  --bg: #05070d;
  --panel-bg: #0f1420;
  --panel-border: #232b3d;
  --text-primary: #eef1f8;
  --text-muted: #8792a8;
  --accent: #4da3ff;
  --accent-soft: rgba(77, 163, 255, 0.15);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background: radial-gradient(circle at 20% -10%, #131c30 0%, var(--bg) 55%);
  color: var(--text-primary);
}

.app-shell {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.eyebrow {
  margin: 0 0 4px;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

h1 {
  margin: 0;
  font-size: 1.6rem;
}

.mode-toggle {
  display: flex;
  gap: 8px;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  padding: 4px;
}

.mode-btn {
  border: none;
  background: transparent;
  color: var(--text-muted);
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.mode-btn:hover {
  color: var(--text-primary);
}

.mode-btn.active {
  background: var(--accent);
  color: #04101f;
  font-weight: 600;
}

.app-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 20px;
  align-items: start;
}

.globe-panel {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 16px;
  padding: 12px;
  position: relative;
}

#globeContainer {
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: 12px;
  overflow: hidden;
  position: relative;
  cursor: grab;
}

#globeContainer:active {
  cursor: grabbing;
}

#globeContainer canvas {
  display: block;
}

#globeContainer:fullscreen {
  width: 100vw;
  height: 100vh;
  aspect-ratio: auto;
  border-radius: 0;
  background: var(--bg);
}

#globeContainer::backdrop {
  background: var(--bg);
}

.map-labels {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  overflow: hidden;
}

.map-labels[hidden],
.city-label[hidden] {
  display: none;
}

.city-label {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 5px;
  transform: translate(0, -50%);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  text-shadow: 0 1px 4px #05070d, 0 -1px 4px #05070d;
  white-space: nowrap;
}

.city-label::before {
  content: "";
  flex: none;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #ffd166;
  box-shadow: 0 0 0 2px #05070d;
}

.city-label:not(.show-name) .city-name {
  display: none;
}

.zoom-controls,
.fullscreen-btn {
  position: absolute;
  top: 12px;
  z-index: 2;
}

.zoom-controls {
  left: 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.fullscreen-btn {
  right: 12px;
  display: grid;
  place-items: center;
}

.fullscreen-btn svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

.fullscreen-exit-icon,
.fullscreen-btn[aria-pressed="true"] .fullscreen-enter-icon {
  display: none;
}

.fullscreen-btn[aria-pressed="true"] .fullscreen-exit-icon {
  display: inline;
}

.zoom-controls button,
.fullscreen-btn {
  width: 36px;
  height: 36px;
  border: 1px solid #465675;
  border-radius: 8px;
  background: rgba(15, 20, 32, 0.92);
  color: var(--text-primary);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
}

.zoom-controls button:hover:not(:disabled),
.zoom-controls button:focus-visible,
.fullscreen-btn:hover:not(:disabled),
.fullscreen-btn:focus-visible {
  border-color: var(--accent);
  background: #19314b;
}

.zoom-controls button:disabled,
.fullscreen-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.map-layers {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin: 12px 4px 2px;
  color: var(--text-primary);
  font-size: 0.8rem;
}

.layer-heading {
  color: var(--text-muted);
  font-weight: 600;
}

.map-layers label {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  cursor: pointer;
}

.map-layers input {
  accent-color: var(--accent);
}

.hint {
  margin: 10px 4px 2px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.side-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.panel {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 16px;
  padding: 18px;
}

.panel h2 {
  margin: 0 0 12px;
  font-size: 1.05rem;
}

.empty-state {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin: 0;
}

.details-list {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 12px;
  margin: 0;
}

.details-list dt {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.details-list dd {
  margin: 0;
  font-weight: 600;
  text-align: right;
}

.wiki-link {
  display: inline-block;
  margin-top: 14px;
  color: var(--accent);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  padding: 8px 12px;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.wiki-link:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.hidden {
  display: none !important;
}

.point-list {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.point-list li {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 8px 10px;
  background: var(--accent-soft);
  border-radius: 8px;
  font-size: 0.85rem;
}

.point-label {
  color: var(--text-muted);
}

.point-value {
  font-weight: 600;
  text-align: right;
}

.distance-result {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 12px;
  border: 1px dashed var(--panel-border);
  border-radius: 10px;
  margin-bottom: 14px;
}

.distance-label {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.distance-value {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
}

.secondary-btn {
  width: 100%;
  padding: 10px;
  border-radius: 8px;
  border: 1px solid var(--panel-border);
  background: transparent;
  color: var(--text-primary);
  cursor: pointer;
  font-size: 0.85rem;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.secondary-btn:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

@media (max-width: 860px) {
  .app-grid {
    grid-template-columns: 1fr;
  }
}