:root {
  --bg-dark: #0b0f19;
  --panel-bg: rgba(17, 24, 39, 0.85);
  --accent-color: #38bdf8;
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --border-color: rgba(56, 189, 248, 0.2);
  --control-bg: rgba(30, 41, 59, 0.85);
  --control-hover-bg: #1e293b;
  --control-border: rgba(255, 255, 255, 0.15);
  --input-bg: rgba(15, 23, 42, 0.8);
  --input-border: rgba(255, 255, 255, 0.1);
  --input-text: #ffffff;
  --hover-item: rgba(255, 255, 255, 0.05);
  --card-bg: rgba(255, 255, 255, 0.03);
  --card-border: rgba(255, 255, 255, 0.08);
  --card-hover-bg: rgba(255, 255, 255, 0.06);
  --countdown-bg: rgba(0, 0, 0, 0.2);
  --panel-separator: rgba(255, 255, 255, 0.1);
}

[data-theme="light"] {
  --bg-dark: #f3f4f6;
  --panel-bg: rgba(255, 255, 255, 0.9);
  --accent-color: #0284c7;
  --text-main: #1f2937;
  --text-muted: #4b5563;
  --border-color: rgba(2, 132, 199, 0.25);
  --control-bg: rgba(255, 255, 255, 0.9);
  --control-hover-bg: #f9fafb;
  --control-border: rgba(0, 0, 0, 0.12);
  --input-bg: rgba(243, 244, 246, 0.9);
  --input-border: rgba(0, 0, 0, 0.12);
  --input-text: #1f2937;
  --hover-item: rgba(0, 0, 0, 0.05);
  --card-bg: rgba(0, 0, 0, 0.025);
  --card-border: rgba(0, 0, 0, 0.08);
  --card-hover-bg: rgba(0, 0, 0, 0.055);
  --countdown-bg: rgba(0, 0, 0, 0.06);
  --panel-separator: rgba(0, 0, 0, 0.1);
}

body {
  margin: 0;
  padding: 0;
  font-family: 'Outfit', sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-main);
  height: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

#map {
  flex: 1;
  width: 100%;
  height: 100%;
  z-index: 1;
}

/* Minimalist Info & Status Panel */
.status-panel {
  position: absolute;
  top: 20px;
  left: 20px;
  z-index: 10;
  background: var(--panel-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  padding: 12px 18px;
  border-radius: 12px;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
  pointer-events: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

h1 {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(to right, #38bdf8, #818cf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Status Indicator */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #ef4444; /* Red / disconnected */
}

.status-dot.connected {
  background-color: #10b981; /* Green */
  box-shadow: 0 0 8px #10b981;
}

.status-dot.loading {
  background-color: #f59e0b; /* Yellow */
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0% { opacity: 0.4; }
  50% { opacity: 1; }
  100% { opacity: 0.4; }
}

/* Floating Margin Map Controls */
.map-controls {
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--panel-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 10px;
  border-radius: 30px;
  border: 1px solid var(--control-border);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.2);
}

.control-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--control-border);
  background: var(--control-bg);
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s ease;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.15);
}

.control-btn:hover {
  background: var(--control-hover-bg);
  color: var(--text-main);
  transform: scale(1.08);
}

.control-btn.active {
  background: linear-gradient(135deg, #0284c7 0%, #3b82f6 100%);
  color: #ffffff;
  border-color: rgba(56, 189, 248, 0.4);
  box-shadow: 0 0 12px rgba(59, 130, 246, 0.4);
}

#locateBtn.active {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  border-color: rgba(16, 185, 129, 0.4);
  box-shadow: 0 0 12px rgba(16, 185, 129, 0.4);
  color: #ffffff;
}

#playPauseBtn.active {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  border-color: rgba(16, 185, 129, 0.4);
  color: #ffffff;
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.3);
}

#playPauseBtn.paused {
  background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
  border-color: rgba(239, 68, 68, 0.4);
  color: #ffffff;
  box-shadow: 0 0 10px rgba(239, 68, 68, 0.3);
}

.control-separator {
  height: 1px;
  background: var(--control-border);
  margin: 4px 6px;
}

/* Permanent Station Label Tooltips */
.station-label {
  background: rgba(15, 23, 42, 0.8) !important;
  border: 1px solid rgba(56, 189, 248, 0.3) !important;
  border-radius: 4px !important;
  color: #f3f4f6 !important;
  font-size: 10px !important;
  font-weight: 600 !important;
  padding: 2px 6px !important;
  box-shadow: 0 2px 4px rgba(0,0,0,0.5) !important;
  white-space: nowrap;
}

/* Hide labels at lower zooms to prevent map clutter */
.hide-station-labels .station-label {
  display: none !important;
}

/* Premium Bottom Drawer / Station Panel */
.station-panel {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 40px);
  max-width: 600px;
  background: var(--panel-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.7);
  z-index: 10;
  padding: 20px;
  max-height: 35vh;
  overflow-y: auto;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.close-panel-btn {
  position: absolute;
  top: 12px;
  right: 16px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  line-height: 1;
  padding: 0;
  transition: color 0.2s;
}

.close-panel-btn:hover {
  color: var(--text-main);
}

.station-title {
  font-size: 1.3rem;
  font-weight: 800;
  margin: 0 0 6px 0;
  color: var(--text-main);
}

.station-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}

.line-badge {
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 700;
  color: #fff;
  background-color: #3b82f6;
}

.destination-group {
  margin-bottom: 16px;
}

.destination-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-color);
  border-bottom: 1px solid var(--panel-separator);
  padding-bottom: 4px;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.train-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  background: var(--card-bg);
  border-radius: 8px;
  margin-bottom: 6px;
  font-size: 0.85rem;
  border: 1px solid var(--card-border);
}

.train-row:hover {
  background: var(--card-hover-bg);
}

.train-info-col {
  display: flex;
  align-items: center;
  gap: 8px;
}

.train-status-col {
  text-align: right;
}

.status-text-live {
  font-weight: 600;
}

.countdown-timer {
  font-size: 0.75rem;
  font-weight: 700;
  display: inline-block;
  margin-left: 4px;
  background: var(--countdown-bg);
  padding: 1px 6px;
  border-radius: 4px;
}

/* Modal Overlay */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.3s ease;
}

.modal-content {
  background: var(--panel-bg);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 24px;
  width: 340px;
  max-width: 90%;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.8);
  position: relative;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.modal-header h2 {
  margin: 0;
  font-size: 1.3rem;
  font-weight: 800;
  background: linear-gradient(to right, #38bdf8, #818cf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
}

.modal-close:hover {
  color: var(--text-main);
}

.form-group {
  margin-bottom: 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.form-select {
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  color: var(--input-text);
  border-radius: 6px;
  padding: 8px 12px;
  font-family: inherit;
  font-size: 0.9rem;
  outline: none;
  cursor: pointer;
  width: 100%;
  box-sizing: border-box;
}

/* Scrollable Checkbox List for lines */
.lines-list-container {
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 6px;
  max-height: 180px;
  overflow-y: auto;
  padding: 8px;
}

.line-checkbox-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 8px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.85rem;
  transition: background 0.2s;
}

.line-checkbox-item:hover {
  background: var(--hover-item);
}

.line-checkbox-item input {
  cursor: pointer;
  accent-color: var(--accent-color);
}

.btn-apply {
  width: 100%;
  background: linear-gradient(135deg, #0284c7 0%, #3b82f6 100%);
  color: #ffffff;
  border: none;
  padding: 10px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: 10px;
  transition: all 0.2s;
}

.btn-apply:hover {
  filter: brightness(1.1);
}

/* Attribution Styling */
.map-footer {
  position: absolute;
  bottom: 10px;
  right: 10px;
  z-index: 10;
  font-size: 0.75rem;
  background: rgba(15, 23, 42, 0.8);
  padding: 4px 8px;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-muted);
  pointer-events: none;
}

/* Dynamic Train Delay Status Radar Ripples */
@keyframes train-sonar-pulse {
  0% {
    transform: scale(0.6);
    opacity: 1;
  }
  100% {
    transform: scale(1.8);
    opacity: 0;
  }
}

.train-pulse-ring {
  position: absolute;
  border-radius: 50%;
  border: 2px solid var(--pulse-color);
  animation: train-sonar-pulse 2s infinite ease-out;
  pointer-events: none;
  z-index: -1;
}

/* Glassmorphic Theme-Responsive Leaflet Popups */
.leaflet-popup-content-wrapper, .leaflet-popup-tip {
  background: var(--panel-bg) !important;
  color: var(--text-main) !important;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.4) !important;
}

.leaflet-popup-content {
  color: var(--text-main) !important;
}

.leaflet-popup-close-button {
  color: var(--text-muted) !important;
}

.leaflet-popup-close-button:hover {
  color: var(--text-main) !important;
}