:root {
  color-scheme: light;
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  --bg: #0e1014;
  --panel: #171a21;
  --accent: #5ad1ff;
  --text: #f5f7ff;
  --muted: #b4bdc6;
  --border: rgba(255, 255, 255, 0.1);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
}

header {
  padding: 32px clamp(16px, 5vw, 48px);
  background: linear-gradient(135deg, #17202b, #0e1014);
  border-bottom: 1px solid var(--border);
}

header h1 {
  margin: 0 0 8px;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
}

header p {
  margin: 0;
  color: var(--muted);
  max-width: 640px;
}

main {
  display: grid;
  grid-template-columns: minmax(260px, 320px) 1fr;
  gap: 24px;
  padding: 24px clamp(16px, 5vw, 48px) 48px;
  min-height: calc(100vh - 220px);
  align-items: stretch;
}

.controls {
  background: var(--panel);
  border-radius: 16px;
  padding: 20px;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: clamp(420px, 70vh, 760px);
}

.file-input {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 999px;
  background: rgba(90, 209, 255, 0.1);
  border: 1px solid rgba(90, 209, 255, 0.35);
  cursor: pointer;
  font-weight: 600;
}

.file-input input {
  display: none;
}

.buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

button {
  padding: 10px 16px;
  border-radius: 10px;
  border: 1px solid transparent;
  background: var(--accent);
  color: #001018;
  font-weight: 600;
  cursor: pointer;
}

button[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
}

#reset {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.status {
  font-size: 0.95rem;
  color: var(--muted);
}

.stats {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.5;
  white-space: pre-line;
}

.flight-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.flight-list-title {
  font-weight: 600;
  font-size: 0.95rem;
}

.flight-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
}

.flight-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.flight-toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  cursor: pointer;
}

.flight-name {
  cursor: text;
}

.flight-name-input {
  font: inherit;
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 4px 6px;
  width: 140px;
}

.flight-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.35);
}

.flight-meta {
  font-size: 0.78rem;
  color: var(--muted);
  padding-left: 28px;
}

.flight-color {
  border: 1px solid var(--border);
  background-color: rgba(255, 255, 255, 0.08);
  color: var(--text);
  padding: 6px 28px 6px 10px;
  border-radius: 10px;
  font-size: 0.78rem;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--text) 50%),
    linear-gradient(135deg, var(--text) 50%, transparent 50%);
  background-position:
    calc(100% - 14px) calc(50% - 3px),
    calc(100% - 9px) calc(50% - 3px);
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}

.flight-color:focus {
  outline: 2px solid rgba(90, 209, 255, 0.45);
  outline-offset: 1px;
}

.flight-color option {
  background: #0e1014;
  color: var(--text);
}

.map-wrapper {
  position: relative;
  border-radius: 16px;
  border: 1px solid var(--border);
  overflow: hidden;
  min-height: clamp(420px, 70vh, 760px);
}

#map {
  height: 100%;
  min-height: 0;
}

/* Keep the tooltip pane above tiles/overlays */
.leaflet-tooltip-pane {
  z-index: 10000;
}

.map-tooltip.leaflet-tooltip {
  background: rgba(11, 13, 18, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text);
  font-size: 0.85rem;
  line-height: 1.4;
  max-width: 240px;
  padding: 10px 12px;
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

.map-tooltip.leaflet-tooltip::before {
  border-top-color: rgba(11, 13, 18, 0.82);
}

.map-tooltip.leaflet-tooltip strong {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 4px;
}

.profile-overlay {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 24px;
  height: 210px;
  background: rgba(11, 13, 18, 0.6);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  backdrop-filter: blur(6px);
  transition: height 0.2s ease;
  z-index: 600;
}

.profile-overlay.is-collapsed {
  height: 48px;
  padding-top: 6px;
  padding-bottom: 6px;
}

.profile-overlay.is-collapsed .profile-body {
  display: none;
}

.profile-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.profile-title {
  font-weight: 600;
}

.profile-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.profile-toggle {
  display: inline-flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 2px;
  gap: 2px;
}

.profile-mode {
  border: 0;
  background: transparent;
  color: var(--text);
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
}

.profile-mode.is-active {
  background: rgba(90, 209, 255, 0.35);
  color: #001018;
}

.profile-collapse {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  width: 32px;
  height: 32px;
  padding: 0;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.profile-collapse svg {
  width: 14px;
  height: 14px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 0.2s ease;
}

.profile-collapse.is-collapsed svg {
  transform: rotate(180deg);
}

.profile-body {
  position: relative;
  flex: 1;
  min-height: 0;
}

.profile-empty {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
  padding: 12px;
  z-index: 3;
}

.profile-axis {
  position: absolute;
  font-size: 0.72rem;
  color: var(--muted);
  display: flex;
  pointer-events: none;
  z-index: 2;
  gap: 4px;
}

.profile-axis-y {
  top: 6px;
  bottom: 12px;
  left: 8px;
  width: 44px;
  flex-direction: column;
  justify-content: space-between;
  text-align: right;
}

.profile-axis-x {
  left: 56px;
  right: 12px;
  bottom: 14px;
  justify-content: space-between;
}

.profile-axis span {
  min-width: 32px;
}

.profile-axis-label {
  position: absolute;
  font-size: 0.72rem;
  color: var(--muted);
  pointer-events: none;
  z-index: 2;
}

.profile-axis-label-y {
  left: 4px;
  top: 50%;
  transform-origin: left center;
  transform: translateY(50%) rotate(-90deg);
}

.profile-axis-label-x {
  bottom: 0;
  left: 50%;
  transform: translateX(-50%) translateY(25%);
}

.profile-tooltip {
  position: absolute;
  top: 8px;
  left: 0;
  transform: translateX(-50%);
  background: rgba(11, 13, 18, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text);
  padding: 6px 8px;
  border-radius: 8px;
  font-size: 0.72rem;
  line-height: 1.35;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.1s ease;
  z-index: 4;
  white-space: nowrap;
}

#profileChart {
  width: 100%;
  height: 100%;
  display: block;
  z-index: 1;
}

#profileAxisX,
#profileAxisY {
  stroke: rgba(255, 255, 255, 0.18);
  stroke-width: 1;
}

.profile-path {
  fill: none;
  stroke-width: 2.25;
}

#profileCursor {
  stroke: rgba(255, 255, 255, 0.55);
  stroke-width: 1;
  opacity: 0;
}

#profileDot {
  fill: #ffffff;
  stroke: var(--accent);
  stroke-width: 2;
  opacity: 0;
}

@media (max-width: 900px) {
  main {
    grid-template-columns: 1fr;
  }

  .map-wrapper,
  #map {
    min-height: clamp(360px, 60vh, 600px);
  }

  .controls {
    min-height: clamp(360px, 60vh, 600px);
  }
}