/* Modern Nautical Design System for Blausteinsee Seekarte */
:root {
  --font-heading: 'Cinzel', serif;
  --font-body: 'Inter', sans-serif;
  
  /* Classic Nautical Chart Theme */
  --bg-app: #f4ece1;
  --bg-sidebar: rgba(255, 255, 255, 0.85);
  --border-color: #cbbba0;
  --text-main: #2c3e50;
  --text-muted: #7f8c8d;
  --accent: #d35400; /* Copper/Orange */
  --accent-hover: #b33925;
  --water-0: #eaf2f8;
  --water-5: #d4e6f1;
  --water-10: #a9cce3;
  --water-20: #7fb3d5;
  --water-30: #5499c7;
  --water-40: #2980b9;
  --water-deep: #1a5276;
  --land: #fcf9f2;
  --grid-line: rgba(44, 62, 80, 0.05);
  --compass-dial: #2c3e50;
  --shadow: 0 8px 32px 0 rgba(139, 126, 105, 0.2);
  --card-bg: rgba(255, 255, 255, 0.7);
  --glow: 0 0 10px rgba(211, 84, 0, 0.2);
}

/* Night / Tactical Dive Theme */
.night-mode {
  --bg-app: #080c14;
  --bg-sidebar: rgba(13, 20, 32, 0.85);
  --border-color: #21324c;
  --text-main: #d0d7de;
  --text-muted: #8492a6;
  --accent: #00ffd2; /* Neon Cyan */
  --accent-hover: #00cca8;
  --water-0: #0c1420;
  --water-5: #0f1d30;
  --water-10: #142740;
  --water-20: #1a3556;
  --water-30: #204570;
  --water-40: #27568c;
  --water-deep: #2e68a8;
  --land: #05080d;
  --grid-line: rgba(0, 255, 210, 0.04);
  --compass-dial: #00ffd2;
  --shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.5);
  --card-bg: rgba(15, 25, 42, 0.7);
  --glow: 0 0 10px rgba(0, 255, 210, 0.4);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-app);
  color: var(--text-main);
  overflow: hidden;
  height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color 0.4s ease, color 0.4s ease;
}

/* Header */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 24px;
  background-color: var(--bg-sidebar);
  border-bottom: 1px solid var(--border-color);
  backdrop-filter: blur(10px);
  z-index: 100;
  height: 65px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.logo-section h1 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  letter-spacing: 2px;
  font-weight: 700;
  color: var(--text-main);
  text-transform: uppercase;
}

.logo-section p {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 1px;
}

.header-controls {
  display: flex;
  gap: 12px;
  align-items: center;
}

.btn {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 8px 16px;
  border-radius: 6px;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s ease;
}

.btn:hover {
  background-color: var(--accent);
  color: var(--bg-app) !important;
  border-color: var(--accent);
  box-shadow: var(--glow);
}

.btn-primary {
  background-color: var(--accent);
  color: var(--bg-app);
  border-color: var(--accent);
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  border-color: var(--accent-hover);
}

/* Main Container Layout */
.main-container {
  display: flex;
  flex: 1;
  position: relative;
  height: calc(100vh - 65px);
  overflow: hidden;
}

/* Sidebar */
.sidebar {
  width: 420px;
  background-color: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
  height: 100%;
  z-index: 90;
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
}

.sidebar-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Scrollbar styling */
.sidebar-scroll::-webkit-scrollbar {
  width: 6px;
}
.sidebar-scroll::-webkit-scrollbar-track {
  background: transparent;
}
.sidebar-scroll::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
}

.sidebar-section {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 16px;
  box-shadow: 0 4px 6px rgba(0,0,0,0.02);
  transition: border-color 0.3s ease;
}

.sidebar-section h2 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 12px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Station Buttons Grid */
.station-buttons-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.station-buttons-title {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-main);
  letter-spacing: 0.5px;
  border-left: 2.5px solid var(--accent);
  padding-left: 6px;
  margin-bottom: 6px;
}

.station-buttons-grid {
  display: grid;
  gap: 8px;
}

.spots-grid {
  grid-template-columns: repeat(5, 1fr);
}

.platforms-grid {
  grid-template-columns: repeat(3, 1fr);
}

.station-btn {
  background-color: var(--card-bg);
  border: 1.5px solid var(--border-color);
  color: var(--text-main);
  padding: 8px 0;
  border-radius: 6px;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.station-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: var(--glow);
  transform: translateY(-2px);
}

.station-btn.platform-btn {
  border-style: double;
  border-width: 3px;
  background-color: rgba(0, 0, 0, 0.02);
}
.night-mode .station-btn.platform-btn {
  background-color: rgba(255, 255, 255, 0.02);
}

/* Selected/Active states for buttons matching the map's selected spot */
.station-btn.selected {
  background-color: var(--accent);
  border-color: var(--accent);
  color: #ffffff !important;
  box-shadow: var(--glow);
  transform: scale(1.05);
}
.night-mode .station-btn.selected {
  color: #080c14 !important;
}

/* In-route highlight: subtle outline glow or background indicator if in route */
.station-btn.in-route {
  border-color: var(--accent);
  background-color: rgba(211, 84, 0, 0.08);
}
.night-mode .station-btn.in-route {
  background-color: rgba(0, 255, 210, 0.08);
}

/* Details and Values */
.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.info-box {
  background-color: rgba(0,0,0,0.02);
  border: 1px solid var(--border-color);
  padding: 10px;
  border-radius: 6px;
  text-align: center;
}
.night-mode .info-box {
  background-color: rgba(255,255,255,0.02);
}

.info-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.info-value {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
}

/* Route Table (Tauchschiefer) */
.slate-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
  margin-top: 10px;
}

.slate-table th, .slate-table td {
  padding: 8px 6px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.slate-table th {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  font-size: 0.7rem;
}

.slate-table tr:last-child td {
  border-bottom: none;
}

.slate-table td .bearing-badge {
  background-color: var(--accent);
  color: var(--bg-app);
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: 700;
  font-family: monospace;
}

/* Map Container */
.map-container {
  flex: 1;
  position: relative;
  height: 100%;
  background-color: var(--land);
  display: flex;
  justify-content: center;
  align-items: center;
}

#map {
  width: 100%;
  height: 100%;
  background-color: var(--bg-app);
}

/* Night / Tactical Theme for OpenStreetMap tiles */
.night-mode .leaflet-tile-container {
  filter: invert(1) hue-rotate(180deg) brightness(0.6) contrast(1.2);
}

.night-mode .leaflet-container {
  background-color: #080c14 !important;
}

/* Custom Marker: Entry (Einstieg) */
.custom-marker-entry {
  background: transparent;
  border: none;
}

.marker-entry-flag {
  width: 26px;
  height: 18px;
  background-color: #c0392b; /* Red */
  border: 1px solid #000000;
  position: relative;
  box-shadow: 0 2px 5px rgba(0,0,0,0.3);
}

.diving-flag-stripe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, transparent 40%, #ffffff 40%, #ffffff 60%, transparent 60%);
}

.marker-entry-label {
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--text-main);
  text-shadow: 1.5px 1.5px 2px var(--bg-app), -1.5px -1.5px 2px var(--bg-app), 1.5px -1.5px 2px var(--bg-app), -1.5px 1.5px 2px var(--bg-app);
  margin-top: 3px;
  text-align: center;
  white-space: nowrap;
}
.night-mode .marker-entry-label {
  text-shadow: 1.5px 1.5px 3px #000000, -1.5px -1.5px 3px #000000;
}

/* Custom Marker: Spot badge */
.custom-marker-spot, .custom-marker-platform {
  background: transparent;
  border: none;
}

.marker-spot-box, .marker-platform-box {
  width: 22px;
  height: 22px;
  background-color: #ffffff;
  border: 2px solid #2c3e50;
  color: #2c3e50;
  font-family: var(--font-body);
  font-weight: 900;
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 4px rgba(0,0,0,0.2);
  transition: all 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.marker-platform-box {
  width: 26px;
  height: 26px;
  font-size: 0.75rem;
  background-color: #f8f9fa;
  border-width: 2px;
  border-style: double; /* Double border for platform to distinguish it */
}

.night-mode .marker-spot-box {
  background-color: #0d1420;
  border-color: #8492a6;
  color: #d0d7de;
}

.night-mode .marker-platform-box {
  background-color: #142132;
  border-color: #8492a6;
  color: #d0d7de;
}

/* Selected and Hover states */
.custom-marker-spot:hover .marker-spot-box,
.custom-marker-platform:hover .marker-platform-box {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: var(--glow);
  transform: scale(1.18);
  z-index: 1000 !important;
}

.custom-marker-spot.selected .marker-spot-box,
.custom-marker-platform.selected .marker-platform-box {
  border-color: var(--accent);
  background-color: var(--accent);
  color: #ffffff;
  box-shadow: var(--glow);
  transform: scale(1.25);
  z-index: 1001 !important;
}
.night-mode .custom-marker-spot.selected .marker-spot-box,
.night-mode .custom-marker-platform.selected .marker-platform-box {
  color: #080c14;
}

/* Rotated Compass Labels */
.compass-label-marker {
  background: transparent;
  border: none;
  pointer-events: none !important;
  opacity: 0;
  transition: opacity 0.3s ease;
  display: flex !important;
  justify-content: center;
  align-items: center;
  z-index: 2000 !important;
}

/* Position Depth Labels */
.marker-depth-label {
  font-size: 0.65rem;
  font-weight: 700;
  color: #2c3e50; /* Dark slate blue */
  text-align: center;
  margin-top: 1px;
  white-space: nowrap;
  text-shadow: 1px 1px 1px #ffffff, -1px -1px 1px #ffffff, 1px -1px 1px #ffffff, -1px 1px 1px #ffffff;
  pointer-events: none;
}
.night-mode .marker-depth-label {
  color: #8492a6; /* Muted light grey */
  text-shadow: 1px 1px 1.5px #080c14, -1px -1px 1.5px #080c14, 1px -1px 1.5px #080c14, -1px 1px 1.5px #080c14;
}

/* Depth Contour Labels */
.depth-contour-label {
  background: transparent;
  border: none;
  pointer-events: none !important;
}
.depth-contour-label span {
  font-size: 0.65rem;
  font-weight: 700;
  color: #95a5a6;
  background-color: #ffffff;
  padding: 1px 3px;
  border-radius: 2px;
  white-space: nowrap;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}
.night-mode .depth-contour-label span {
  color: #5d6d7e;
  background-color: #080c14;
}

.compass-label-marker.visible-label {
  opacity: 1;
}

.compass-label-inner {
  white-space: nowrap;
  font-family: monospace;
  font-weight: 800;
  font-size: 10.5px;
  color: #000000;
  /* subtle shadow to read over line */
  text-shadow: 1px 1px 1.5px #ffffff, -1px -1px 1.5px #ffffff, 1px -1px 1.5px #ffffff, -1px 1px 1.5px #ffffff;
  display: inline-block;
  transform-origin: center center;
  text-align: center;
}

.night-mode .compass-label-inner {
  color: #ffffff;
  text-shadow: 1px 1px 2px #000000, -1px -1px 2px #000000, 1px -1px 2px #000000, -1px 1px 2px #000000;
}

/* Floating HUDs */
.hud {
  position: absolute;
  background-color: var(--bg-sidebar);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(12px);
  border-radius: 8px;
  padding: 12px;
  box-shadow: var(--shadow);
  z-index: 80;
  transition: all 0.3s ease;
}

.hud-map-info {
  top: 20px;
  right: 20px;
  width: 260px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.hud-map-info h3 {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 4px;
}

.hud-tools {
  bottom: 20px;
  left: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.hud-compass-display {
  bottom: 20px;
  right: 20px;
  width: 250px;
  display: none; /* Shown dynamically when drag compass or route is active */
  flex-direction: column;
  gap: 6px;
}

.hud-route-details {
  top: 185px;
  right: 20px;
  width: 290px;
  max-height: calc(100% - 220px);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.hud-route-details h3 {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 4px;
}

.compass-visual {
  width: 100%;
  height: 10px;
  background: linear-gradient(90deg, transparent 50%, var(--accent) 50%), linear-gradient(90deg, var(--text-muted) 1px, transparent 1px);
  background-size: 10px 10px, 40px 10px;
  position: relative;
  margin: 10px 0;
  border-bottom: 1px solid var(--border-color);
}

/* Legend items */
.legend-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  font-size: 0.75rem;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.legend-color {
  width: 14px;
  height: 14px;
  border-radius: 3px;
  border: 1px solid var(--border-color);
}

.legend-icon {
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Rules list styling */
.rules-list {
  font-size: 0.8rem;
  line-height: 1.4;
  padding-left: 20px;
  color: var(--text-muted);
}

.rules-list li {
  margin-bottom: 6px;
}

.rules-list strong {
  color: var(--text-main);
}

/* Custom Alert styling */
.toast-alert {
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(-100px);
  background-color: var(--bg-sidebar);
  border: 1px solid var(--accent);
  color: var(--text-main);
  padding: 12px 24px;
  border-radius: 30px;
  font-size: 0.9rem;
  font-weight: 600;
  z-index: 150;
  box-shadow: var(--shadow);
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.4s ease;
  opacity: 0;
  display: flex;
  align-items: center;
  gap: 10px;
}
.toast-alert.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* Compass tool overlay active */
.compass-tool-active {
  cursor: crosshair !important;
}

/* Responsiveness */
@media (max-width: 1024px) {
  .sidebar {
    width: 320px;
  }
}

@media (max-width: 768px) {
  body {
    overflow-y: auto;
    height: auto;
  }
  .main-container {
    flex-direction: column-reverse;
    height: auto;
    overflow: visible;
  }
  .sidebar {
    width: 100%;
    height: auto;
    border-right: none;
    border-top: 1px solid var(--border-color);
  }
  .map-container {
    height: 500px;
    width: 100%;
  }
  .hud-map-info {
    top: 10px;
    right: 10px;
    width: 200px;
    font-size: 0.8rem;
  }
}

/* Print Layout: DIN A4 Landscape on single page */
@media print {
  @page {
    size: A4 landscape;
    margin: 8mm;
  }
  
  body {
    background: #ffffff !important;
    color: #000000 !important;
    height: 100% !important;
    width: 100% !important;
    overflow: visible !important;
  }

  header, 
  .logo-section, 
  .header-controls, 
  #toggle-theme-btn, 
  #reset-map-btn, 
  .hud, 
  #clear-route-btn, 
  #print-route-btn, 
  .preset-list, 
  .rules-list,
  .sidebar-section:not(:nth-of-type(2)), /* hide details, presets, rules, legend in sidebar, ONLY keep Route Planner */
  .leaflet-control-container {
    display: none !important;
  }

  .main-container {
    display: flex !important;
    flex-direction: row-reverse !important;
    height: 180mm !important;
    width: 280mm !important;
    margin: 0 auto !important;
    padding: 0 !important;
    border: 2px solid #000000 !important;
    background: #ffffff !important;
  }

  .sidebar {
    width: 35% !important;
    height: 100% !important;
    border-left: 2px solid #000000 !important;
    border-right: none !important;
    border-top: none !important;
    background: #ffffff !important;
    box-shadow: none !important;
    padding: 10px !important;
    display: flex !important;
    flex-direction: column !important;
    justify-content: flex-start !important;
  }

  .sidebar-scroll {
    overflow: visible !important;
    padding: 0 !important;
  }

  .sidebar-section {
    border: none !important;
    background: transparent !important;
    box-shadow: none !important;
    padding: 0 !important;
    margin: 0 !important;
  }

  .sidebar-section h2 {
    font-size: 1rem !important;
    border-bottom: 2px solid #000000 !important;
    color: #000000 !important;
    margin-bottom: 8px !important;
  }

  .map-container {
    width: 65% !important;
    height: 100% !important;
    background: #ffffff !important;
  }

  #map {
    width: 100% !important;
    height: 100% !important;
    background: #ffffff !important;
  }

  .slate-table {
    font-size: 0.75rem !important;
  }

  .slate-table th {
    border-bottom: 2px solid #000000 !important;
    color: #000000 !important;
  }

  .slate-table td {
    border-bottom: 1px solid #cccccc !important;
    padding: 6px 4px !important;
  }

  .slate-table td .bearing-badge {
    background-color: transparent !important;
    border: 1px solid #000000 !important;
    color: #000000 !important;
    padding: 1px 4px !important;
  }

  .info-box {
    border: 1px solid #000000 !important;
    background: transparent !important;
  }

  .info-value {
    color: #000000 !important;
  }

  .compass-label-inner {
    color: #000000 !important;
    text-shadow: 1px 1px 1.5px #ffffff, -1px -1px 1.5px #ffffff !important;
  }
}