/* ============================================================
   3D Digital Twin — Stylesheet
   Dark theme: rgba(0,0,0,0.88) backgrounds, #4fc3f7 accent,
   #eee text, -apple-system font stack.
   ============================================================ */

/* === Reset & Layout === */

*, *::before, *::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  overflow: hidden;
  background: #111;
  color: #eee;
}

#app {
  width: 100vw;
  height: 100vh;
  position: relative;
  display: flex;
}

#map-canvas {
  flex: 1;
  position: relative;
}

#layer-panel {
  width: 340px;
  background: rgba(0, 0, 0, 0.92);
  color: #eee;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  z-index: 1;
  border-left: 1px solid rgba(255, 255, 255, 0.1);
}

/* === Navigation Bar === */

.nav-bar {
  position: absolute;
  top: 0;
  left: 0;
  right: 340px;
  z-index: 10;
  display: flex;
  align-items: center;
  padding: 8px 12px;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  gap: 8px;
}

.nav-link {
  background: rgba(255, 255, 255, 0.08);
  padding: 6px 12px;
  border-radius: 6px;
  color: #4fc3f7;
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: background 0.2s, border-color 0.2s;
}

.nav-link:hover {
  background: rgba(79, 195, 247, 0.15);
}

.nav-title {
  flex: 1;
  text-align: center;
  font-size: 15px;
  font-weight: 600;
  color: #eee;
}

.area-dropdown {
  appearance: none;
  -webkit-appearance: none;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #4fc3f7;
  padding: 6px 28px 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%234fc3f7'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 10px 6px;
  transition: background-color 0.2s, border-color 0.2s;
}

.area-dropdown:hover {
  background-color: rgba(255, 255, 255, 0.12);
}

.area-dropdown:focus {
  outline: none;
  border-color: #4fc3f7;
}

.area-dropdown option {
  background: #1a1a1a;
  color: #eee;
}

/* === Nav Dropdown Menu === */

.nav-dropdown-wrap {
  position: relative;
}

.nav-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: 4px;
  background: rgba(0, 0, 0, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  padding: 4px 0;
  min-width: 200px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
  z-index: 20;
}

.nav-dropdown.open {
  display: block;
}

.nav-dropdown a {
  display: block;
  padding: 8px 14px;
  color: #ccc;
  text-decoration: none;
  font-size: 12px;
  transition: background 0.15s, color 0.15s;
}

.nav-dropdown a:hover {
  background: rgba(79, 195, 247, 0.12);
  color: #4fc3f7;
}

/* === Panel Header === */

.panel-header {
  padding: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.panel-header h2 {
  margin: 0;
  font-size: 15px;
  color: #4fc3f7;
}

.panel-header p {
  margin: 4px 0 0;
  font-size: 11px;
  color: #888;
}

/* === Accordion Groups === */

.panel-body {
  flex: 1;
  overflow-y: auto;
  padding-bottom: 60px;
}

.accordion-group {
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.accordion-header {
  display: flex;
  align-items: center;
  padding: 10px 16px;
  cursor: pointer;
  user-select: none;
  transition: background 0.15s;
  gap: 8px;
}

.accordion-header:hover {
  background: rgba(255, 255, 255, 0.04);
}

.accordion-arrow {
  width: 16px;
  height: 16px;
  transition: transform 0.2s;
  color: #888;
  font-size: 12px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.accordion-group.open .accordion-arrow {
  transform: rotate(90deg);
}

.accordion-title {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #aaa;
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.accordion-group.open .accordion-body {
  max-height: 800px;
}

/* === Layer Toggle Rows === */

.layer-row {
  display: flex;
  align-items: center;
  padding: 6px 16px 6px 40px;
  gap: 8px;
}

.layer-row:hover {
  background: rgba(255, 255, 255, 0.02);
}

.layer-toggle {
  appearance: none;
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 3px;
  border: 2px solid #666;
  background: transparent;
  cursor: pointer;
  position: relative;
  flex-shrink: 0;
  transition: background 0.15s, border-color 0.15s;
}

.layer-toggle:checked {
  background: #4fc3f7;
  border-color: #4fc3f7;
}

.layer-toggle:checked::after {
  content: '';
  position: absolute;
  top: 1px;
  left: 4px;
  width: 4px;
  height: 8px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.layer-label {
  font-size: 13px;
  color: #ccc;
  cursor: pointer;
  flex: 1;
}

.layer-loading {
  width: 14px;
  height: 14px;
  border: 2px solid #333;
  border-top-color: #4fc3f7;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* === Sub-options (radio buttons for metrics) === */

.layer-options {
  padding: 4px 16px 8px 64px;
}

.layer-options label {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-right: 10px;
  font-size: 11px;
  color: #999;
  cursor: pointer;
}

.layer-options input[type="radio"] {
  accent-color: #4fc3f7;
  width: 12px;
  height: 12px;
}

/* === POI Filter Pills === */

.poi-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 6px 16px 10px 40px;
}

.poi-pill {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 3px 9px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
  color: #ccc;
  font-size: 11px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  user-select: none;
}

.poi-pill.active {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.25);
  color: #fff;
}

.poi-meta-btn {
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 10px;
  background: rgba(255, 255, 255, 0.06);
  color: #999;
  border: 1px solid rgba(255, 255, 255, 0.12);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.poi-meta-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #ccc;
}

/* === Sun Info Panel === */

.sun-panel {
  padding: 12px 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 160, 0, 0.06);
}

.sun-panel .sun-title {
  font-weight: bold;
  color: #ffb300;
  margin-bottom: 6px;
  font-size: 12px;
}

.sun-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.sun-info-text {
  font-size: 12px;
  color: #ccc;
}

.sun-info-text div {
  margin: 2px 0;
}

/* === Time Slider === */

.time-slider-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 340px;
  z-index: 10;
  background: rgba(0, 0, 0, 0.85);
  padding: 10px 24px 14px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.time-slider-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.play-btn {
  background: none;
  border: 2px solid #4fc3f7;
  color: #4fc3f7;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s, color 0.15s;
  flex-shrink: 0;
}

.play-btn:hover {
  background: rgba(79, 195, 247, 0.15);
}

.play-btn.playing {
  background: #4fc3f7;
  color: #111;
}

.time-slider-input {
  flex: 1;
  accent-color: #4fc3f7;
}

.time-label {
  font-weight: bold;
  font-size: 15px;
  color: #4fc3f7;
  min-width: 80px;
  text-align: center;
}

.time-marks {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  color: #666;
  padding: 0 42px 0 42px;
  margin-top: 2px;
}

/* === Shade Chart === */

.shade-chart {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 36px;
  margin: 6px 16px 2px;
}

.shade-bar {
  flex: 1;
  background: #4fc3f7;
  border-radius: 2px 2px 0 0;
  transition: height 0.3s, opacity 0.3s;
  opacity: 0.35;
}

.shade-bar.active {
  opacity: 1;
}

.shade-bar-labels {
  display: flex;
  gap: 3px;
  font-size: 9px;
  color: #888;
  margin: 0 16px 8px;
}

.shade-bar-labels span {
  flex: 1;
  text-align: center;
}

/* === View Presets === */

.view-presets {
  position: absolute;
  bottom: 60px;
  left: 12px;
  z-index: 5;
  display: flex;
  gap: 4px;
}

.view-btn {
  padding: 5px 10px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(0, 0, 0, 0.75);
  color: #ccc;
  cursor: pointer;
  font-size: 11px;
  border-radius: 4px;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  transition: background 0.15s, color 0.15s;
}

.view-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.view-btn.active {
  background: rgba(79, 195, 247, 0.25);
  color: #4fc3f7;
  border-color: rgba(79, 195, 247, 0.4);
}

.view-separator {
  color: rgba(255, 255, 255, 0.2);
  align-self: center;
  font-size: 0.8em;
  margin: 0 2px;
}

/* === Legend === */

.legend-overlay {
  position: absolute;
  bottom: 70px;
  right: 352px;
  z-index: 5;
  background: rgba(0, 0, 0, 0.85);
  padding: 10px 14px;
  border-radius: 8px;
  max-width: 200px;
  font-size: 12px;
  color: #ccc;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  pointer-events: none;
}

.legend-title {
  color: #aaa;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 6px;
}

.legend-item {
  display: flex;
  align-items: center;
  margin: 3px 0;
  font-size: 11px;
  color: #bbb;
}

.legend-color {
  width: 24px;
  height: 4px;
  margin-right: 8px;
  border-radius: 2px;
  flex-shrink: 0;
}

.legend-gradient {
  height: 8px;
  border-radius: 4px;
  margin: 4px 0;
}

.legend-labels {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  color: #888;
}

/* === Tooltip === */

.deck-tooltip {
  position: absolute;
  z-index: 100;
  pointer-events: none;
  padding: 8px 12px;
  background: rgba(0, 0, 0, 0.9);
  color: #eee;
  font-size: 12px;
  border-radius: 6px;
  max-width: 280px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.deck-tooltip b {
  color: #4fc3f7;
}

/* === Loading Overlay === */

.loading-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.6);
  z-index: 50;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s;
}

.loading-overlay.active {
  opacity: 1;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(79, 195, 247, 0.2);
  border-top-color: #4fc3f7;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* === Keyframes === */

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* === Scrollbar === */

#layer-panel::-webkit-scrollbar {
  width: 6px;
}

#layer-panel::-webkit-scrollbar-track {
  background: transparent;
}

#layer-panel::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 3px;
}

.panel-body::-webkit-scrollbar {
  width: 6px;
}

.panel-body::-webkit-scrollbar-track {
  background: transparent;
}

.panel-body::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 3px;
}

/* === Layer Info Button & Popover === */

.layer-info-btn {
    display: inline-flex; align-items: center; justify-content: center;
    width: 16px; height: 16px; border-radius: 50%;
    background: rgba(255,255,255,0.08); color: #888;
    font-size: 11px; font-style: italic; font-family: serif;
    cursor: pointer; flex-shrink: 0;
    border: 1px solid rgba(255,255,255,0.12);
    transition: background 0.15s, color 0.15s;
    text-decoration: none;
}
.layer-info-btn:hover { background: rgba(79,195,247,0.2); color: #4fc3f7; }
.info-popover {
    display: none; position: fixed; z-index: 1000;
    background: rgba(0,0,0,0.95); color: #ccc;
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 8px; padding: 10px 14px;
    max-width: 240px; font-size: 12px; line-height: 1.5;
    box-shadow: 0 8px 24px rgba(0,0,0,0.6);
    pointer-events: auto;
}
.info-popover.visible { display: block; }
.info-popover .info-title { font-weight: 600; color: #eee; margin-bottom: 4px; }
.info-popover .info-link {
    display: inline-block; margin-top: 6px;
    color: #4fc3f7; text-decoration: none; font-size: 11px;
}
.info-popover .info-link:hover { text-decoration: underline; }

/* === Seasonal Badge === */

.seasonal-badge {
    font-size: 10px;
    color: #4fc3f7;
    background: rgba(79,195,247,0.12);
    padding: 1px 5px;
    border-radius: 3px;
    margin-left: 6px;
    vertical-align: middle;
}

/* === Responsive === */

@media (max-width: 768px) {
  #app {
    flex-direction: column;
  }

  #layer-panel {
    width: 100%;
    height: 50vh;
    border-left: none;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    order: 2;
  }

  #map-canvas {
    order: 1;
    height: 50vh;
  }

  .nav-bar {
    right: 0;
  }

  .time-slider-bar {
    right: 0;
    position: relative;
    order: 3;
  }

  .legend-overlay {
    right: 12px;
    bottom: 12px;
  }

  .view-presets {
    bottom: 12px;
  }

  .route-replay-bar {
    right: 0;
    bottom: auto;
  }
}

/* === Route Controls === */

.route-action-btn {
  padding: 4px 12px;
  border-radius: 4px;
  border: 1px solid #4fc3f7;
  background: rgba(79, 195, 247, 0.12);
  color: #4fc3f7;
  font-size: 11px;
  cursor: pointer;
  transition: background 0.15s;
}

.route-action-btn:hover {
  background: rgba(79, 195, 247, 0.25);
}

.route-action-btn.active {
  background: #4fc3f7;
  color: #111;
}

#route-controls label {
  font-size: 11px;
  color: #999;
  cursor: pointer;
  margin-right: 6px;
}

#route-controls input[type="radio"] {
  accent-color: #4fc3f7;
  width: 12px;
  height: 12px;
}

/* === Route Replay Bar === */

.route-replay-bar {
  position: absolute;
  bottom: 56px;
  left: 0;
  right: 340px;
  z-index: 11;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-top: 1px solid rgba(79, 195, 247, 0.3);
  padding: 8px 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.replay-btn {
  background: none;
  border: 2px solid #4fc3f7;
  color: #4fc3f7;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s;
  flex-shrink: 0;
}

.replay-btn:hover {
  background: rgba(79, 195, 247, 0.15);
}

.replay-btn.playing {
  background: #4fc3f7;
  color: #111;
}

.replay-exit {
  border-color: #999;
  color: #999;
  font-size: 13px;
}

.replay-exit:hover {
  border-color: #f44;
  color: #f44;
  background: rgba(244, 67, 54, 0.1);
}

.replay-share {
  border-color: #aaa;
  color: #aaa;
  font-size: 13px;
}

.replay-share:hover {
  border-color: #4fc3f7;
  color: #4fc3f7;
}

.replay-progress-slider {
  flex: 1;
  accent-color: #4fc3f7;
}

.replay-dist {
  font-size: 12px;
  color: #ccc;
  min-width: 100px;
  text-align: center;
}

.replay-speed {
  appearance: none;
  -webkit-appearance: none;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #ccc;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 11px;
  cursor: pointer;
}

.replay-speed option {
  background: #1a1a1a;
  color: #eee;
}

/* Route picking cursor */

.route-picking #map-canvas canvas,
.route-picking #deckgl-overlay {
  cursor: crosshair !important;
}