:root {
  color-scheme: dark;
}

html, body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: radial-gradient(circle at 30% 20%, #0d1630 0%, #05070f 55%, #020308 100%);
  font-family: "Segoe UI", Tahoma, sans-serif;
}

#app {
  width: 100%;
  height: 100%;
}

.hud {
  position: fixed;
  left: 14px;
  bottom: 14px;
  padding: 8px 10px;
  font-size: 12px;
  line-height: 1.4;
  color: #d8e7ff;
  background: rgba(3, 8, 20, 0.45);
  border: 1px solid rgba(180, 210, 255, 0.22);
  border-radius: 8px;
  backdrop-filter: blur(3px);
  letter-spacing: 0.2px;
  user-select: none;
  pointer-events: none;
  white-space: pre-line;
}

.settings-toggle {
  position: fixed;
  top: 14px;
  right: 14px;
  z-index: 20;
  border: 1px solid rgba(180, 210, 255, 0.32);
  background: rgba(4, 11, 24, 0.72);
  color: #d8e7ff;
  border-radius: 8px;
  padding: 7px 10px;
  font-size: 12px;
  cursor: pointer;
}

.flights-controls {
  position: fixed;
  top: 14px;
  left: 14px;
  z-index: 20;
  display: flex;
  gap: 8px;
  align-items: center;
}

.flights-toggle {
  border: 1px solid rgba(255, 168, 128, 0.45);
  background: rgba(40, 16, 8, 0.78);
  color: #ffd8c5;
  border-radius: 8px;
  padding: 7px 10px;
  font-size: 12px;
  cursor: pointer;
}

.flights-toggle[aria-pressed="true"] {
  border-color: rgba(255, 135, 76, 0.75);
  background: rgba(90, 28, 8, 0.88);
  color: #fff4ef;
}

.flights-region {
  border: 1px solid rgba(255, 168, 128, 0.4);
  background: rgba(12, 20, 36, 0.86);
  color: #ffd8c5;
  border-radius: 8px;
  padding: 7px 9px;
  font-size: 12px;
  min-width: 138px;
  cursor: pointer;
}

.settings-panel {
  position: fixed;
  top: 52px;
  right: 14px;
  width: 265px;
  z-index: 19;
  border: 1px solid rgba(180, 210, 255, 0.28);
  background: rgba(4, 11, 24, 0.85);
  color: #d8e7ff;
  border-radius: 10px;
  padding: 12px;
  backdrop-filter: blur(3px);
}

.settings-panel h2 {
  margin: 0 0 6px;
  font-size: 14px;
}

.settings-help {
  margin: 0 0 10px;
  font-size: 12px;
  color: #afc6eb;
}

.settings-observer {
  margin: 0 0 10px;
  font-size: 12px;
}

.settings-actions {
  display: flex;
  gap: 8px;
  margin: 0 0 10px;
}

.settings-check {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 10px;
  font-size: 12px;
  color: #afc6eb;
}

.settings-check input {
  accent-color: #ff4d4d;
}

.settings-actions button,
.settings-form button {
  border: 1px solid rgba(180, 210, 255, 0.32);
  background: rgba(24, 48, 91, 0.7);
  color: #d8e7ff;
  border-radius: 6px;
  padding: 6px 8px;
  font-size: 12px;
  cursor: pointer;
}

.settings-form {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
}

.settings-form label {
  font-size: 12px;
  color: #afc6eb;
}

.settings-form input {
  border: 1px solid rgba(180, 210, 255, 0.25);
  border-radius: 6px;
  background: rgba(9, 20, 42, 0.85);
  color: #d8e7ff;
  padding: 6px 8px;
  font-size: 12px;
}

.settings-status {
  margin-top: 10px;
  min-height: 16px;
  font-size: 12px;
  color: #afc6eb;
}