#map{
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
}

#layer-controls {
  position: absolute;
  bottom: 1rem;
  right: 1rem;
  z-index: 10;
}

.layer-panel {
  width: min(21rem, 85vw);
  max-height: min(75vh, 36rem);
  overflow-y: auto;
  overflow-x: hidden;
  background: rgba(30, 40, 50, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 10px;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.35);
  color: #f2f7fb;
  font-family: "Open Sans", sans-serif;
  font-size: 0.8rem;
  backdrop-filter: blur(2px);
  padding-bottom: 0.2rem;
}

.layer-panel h2 {
  margin: 0;
  padding: 0.85rem 1rem 0.65rem;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.layer-list {
  margin: 0;
  padding: 0.15rem 1rem 0.65rem 3rem;
  list-style: none;
}

.layer-section {
  padding-top: 0.1rem;
}

.layer-section + .layer-section {
  margin-top: 0.2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  padding-top: 0.3rem;
}

.layer-section-header {
  display: flex;
  align-items: center;
}

.layer-disclosure-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1rem;
  height: 1rem;
  margin: 0;
  margin-left: 0.95rem;
  padding: 0;
  border: 0;
  background: transparent;
  color: rgba(242, 247, 251, 0.75);
  cursor: pointer;
}

.layer-section-checkbox {
  margin: 0 0.55rem 0 0.35rem;
}

.layer-section-title-button {
  flex: 1;
  margin: 0;
  padding: 0.42rem 1rem 0.05rem 0;
  border: 0;
  background: transparent;
  color: rgba(242, 247, 251, 0.75);
  text-align: left;
  cursor: pointer;
}

.layer-section:last-child .layer-section-title-button {
  padding-bottom: 0.4rem;
}

.layer-section-title {
  margin: 0;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.layer-disclosure {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1rem;
  height: 1rem;
  transform-origin: center center;
  transform: rotate(0deg);
  transition: transform 120ms ease;
}

.layer-disclosure-button[aria-expanded="false"] .layer-disclosure {
  transform: rotate(-90deg);
}

.layer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  margin: 0;
  padding: 0;
}

.layer-toggle {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  flex: 1;
  min-width: 0;
  padding: 0.25rem 0;
  cursor: pointer;
  user-select: none;
}

.layer-toggle input {
  margin: 0;
}

.layer-flight-level {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.layer-flight-level-label {
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: rgba(242, 247, 251, 0.75);
}

.layer-flight-level-select {
  width: 4rem;
  height: 1.7rem;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 6px;
  background: rgba(13, 21, 29, 0.85);
  color: #f2f7fb;
  font-size: 0.8rem;
  padding: 0 0.35rem;
}

.layer-flight-level-select:focus {
  outline: 2px solid rgba(255, 150, 46, 0.55);
  outline-offset: 1px;
}

.layer-flight-level-step {
  width: 1.6rem;
  height: 1.6rem;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 5px;
  background: rgba(13, 21, 29, 0.85);
  color: #f2f7fb;
  font-size: 0.9rem;
  line-height: 1;
  padding: 0;
  cursor: pointer;
}

.layer-flight-level-step:disabled {
  opacity: 0.45;
  cursor: default;
}

.layer-flight-level-step:focus {
  outline: 2px solid rgba(255, 150, 46, 0.55);
  outline-offset: 1px;
}

@media (max-width: 640px) {
  #layer-controls {
    bottom: 0.75rem;
    right: 0.75rem;
    left: auto;
  }

  .layer-panel {
    width: 100%;
    max-height: 45vh;
  }
}