* {
  box-sizing: border-box;
}

/* Dark theme color palette */
:root {
  --bg-primary: #1a1d23;
  --bg-secondary: #25282f;
  --bg-tertiary: #2d3039;
  --border-color: #3d4048;
  --text-primary: #ffffff;
  --text-secondary: #ffffff;
  --accent-blue: #4a9eff;
  --accent-blue-dark: #2d7dd8;
  --accent-red: #ff6b6b;
  --success-green: #51cf66;
  --hover-bg: #33373f;

  /* Dark green used for primary action buttons (Export/Import) */
  --button-green: #2f855a;
  --button-green-dark: #276749;
}

html, body {
  height: 100%;
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
}

/* Navigation Menu */
.top-nav{
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 12px 0;
}
.nav-container{
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.nav-brand{
  display: flex;
  align-items: center;
  text-decoration: none;
}
.nav-brand img{
  height: 40px;
  width: auto;
}
.nav-links{
  display: flex;
  gap: 24px;
  align-items: center;
}
.nav-links a{
  color: var(--text-primary);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.2s ease;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.nav-links a img{
  height: 20px;
  width: auto;
}
.nav-links a:hover{
  color: var(--accent-blue);
}
.nav-toggle{
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 4px;
}
@media(max-width:640px){
  .top-nav{ padding: 10px 0; }
  .nav-container{ padding: 0 12px; flex-wrap: wrap; }
  .nav-toggle{ display: block; }
  .nav-links{
    display: none;
    width: 100%;
    flex-direction: column;
    gap: 12px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
    align-items: flex-start;
  }
  .nav-links.active{
    display: flex;
  }
  .nav-brand img{ height: 32px; }
}

/* Root container for the app */
#app {
  /* Layout as a column: top section (map + settings) on top, list section below */
  display: flex;
  flex-direction: column;
  height: calc(100vh - 65px); /* Subtract nav height */
  gap: 0;
}

/* Top section holds the sidebar and the map side by side */
#topSection {
  display: flex;
  /* Allocate more vertical space to the top section using flex-grow. A higher value
     means a taller map. Increase from 3 to 4 to give the map and settings area
     roughly 30–50% more height relative to the list section. */
  flex: 4 1 0;
  /* Raise the minimum height so the map and settings are taller vertically. Increase
     from 600px to 800px to provide more vertical space for the map and sidebar. */
  min-height: 800px;
}

/* Adjust the sidebar dimensions; allow vertical scrolling for long content */
#sidebar {
  width: 28%;
  min-width: 280px;
  max-width: 400px;
  background-color: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

/* Wrapper for map and peak info panels */
#mapSection {
  flex: 1;
  display: flex;
  gap: 1rem;
  margin: 1rem;
}

/* Map occupies the remaining width of the top section */
/* Container wrapping the map. Provides padding and its own border to avoid
   the map touching other edges. On mobile, this container will stack
   neatly below the sidebar. */
#mapContainer {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 1rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
}

/* Peak Bagger promo panel next to map */
#peakInfoPanel {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  text-align: center;
}

#peakInfoPanel h2 {
  margin: 0 0 1.5rem 0;
  font-size: 2rem;
  color: var(--text-primary);
  font-weight: 700;
}

#peakInfoPanel p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.6;
  max-width: 400px;
}

.promo-link {
  display: inline-block;
  padding: 1rem 2rem;
  background-color: var(--accent-blue);
  color: white;
  text-decoration: none;
  border-radius: 8px;
  font-size: 1.1rem;
  font-weight: 600;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(74, 158, 255, 0.3);
}

.promo-link:hover {
  background-color: var(--accent-blue-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(74, 158, 255, 0.4);
}

.user-details {
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.user-details strong {
  color: var(--text-primary);
  display: block;
  margin-bottom: 0.5rem;
}

/* Trail Properties Grid */
.trail-properties-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.75rem 1.5rem;
  width: 100%;
  max-width: 500px;
  margin: 1.5rem auto 0;
  padding: 1.5rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  text-align: left;
  max-height: 400px;
  overflow-y: auto;
}

.property-label {
  font-weight: 600;
  color: var(--accent-blue);
  font-size: 0.9rem;
  text-transform: capitalize;
}

.property-value {
  color: var(--text-primary);
  font-size: 0.9rem;
  word-break: break-word;
}

#trailPromoSection {
  display: block;
}

#trailPromoSection h3 {
  margin: 0 0 1rem 0;
  font-size: 1.5rem;
  color: var(--text-primary);
  font-weight: 700;
}

#trailInfoTitle {
  margin: 0 0 0.75rem 0;
  font-size: 1.75rem;
  color: var(--text-primary);
  font-weight: 700;
}

#trailInfoDescription {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
  line-height: 1.6;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* Map itself fills its container */
#map {
  flex: 1;
  width: 100%;
  height: 100%;
  background-color: #2d2d2d;
  border-radius: 6px;
}

/* List section below the map; spans full width */
#listSection {
  width: 100%;
  /* Allow the list section to grow and fill the remaining height */
  flex: 1 1 auto;
  /* Light grey panel similar to WMNF trails app */
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.3);
  display: flex;
  flex-direction: column;
  padding: 1rem 1.5rem;
  overflow-y: auto;
}

/* Sidebar (settings) styles defined above.  Old definitions removed to avoid conflicts. */

/* Header section with title */
.sidebar-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  background-color: var(--bg-primary);
}

.sidebar-header h1 {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.sidebar-header p {
  margin: 0.5rem 0 0 0;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Controls container */
.controls {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  background-color: var(--bg-secondary);
}

.controls input[type="text"],
.controls select {
  width: 100%;
  padding: 0.75rem;
  background-color: var(--bg-tertiary);
  border: 1px solid #ffffff;
  border-radius: 6px;
  font-size: 0.95rem;
  color: var(--text-primary);
  transition: all 0.2s ease;
}

.controls input[type="text"]::placeholder {
  color: var(--text-secondary);
}

/* Wrapper for the letter navigation bar and its label */
.letter-nav-wrapper {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.5rem 1.5rem 0.5rem;
  border-bottom: 1px solid var(--border-color);
}
.jump-label {
  font-size: 0.75rem;
  color: var(--text-primary);
  user-select: none;
}
.letter-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.15rem;
}
.letter-nav span {
  cursor: pointer;
  color: var(--text-primary);
  font-size: 0.75rem;
  margin: 0.15rem 0.2rem;
  padding: 0.25rem 0.4rem;
  border-radius: 4px;
  flex: none;
  user-select: none;
}
.letter-nav span:hover {
  background-color: var(--hover-bg);
  color: var(--accent-blue);
}

/* List header styling */
.list-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.6rem 1rem;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-top-left-radius: 8px;
  border-top-right-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}
.header-name {
  flex: 1;
}
.header-completed {
  flex: 0;
  margin-left: 0.5rem;
}

.controls input[type="text"]:focus,
.controls select:focus {
  outline: none;
  border-color: var(--accent-blue);
  background-color: var(--bg-tertiary);
  box-shadow: 0 0 0 3px rgba(74, 158, 255, 0.1);
}

.controls select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23a0a3a8' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2.5rem;
}

/* Trail list container */
.trail-list-container {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
}

.trail-list-container::-webkit-scrollbar {
  width: 8px;
}

.trail-list-container::-webkit-scrollbar-track {
  background: transparent;
}

.trail-list-container::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

.trail-list-container::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}

/* Trail list styles */
#trailList {
  list-style: none;
  padding: 0.5rem;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

#trailList li {
  padding: 1rem;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 0.95rem;
  color: var(--text-primary);
  user-select: none;
}

#trailList li:hover {
  background-color: var(--hover-bg);
  border-color: var(--accent-blue);
  transform: translateX(4px);
}

#trailList li.active {
  background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-blue-dark) 100%);
  border-color: var(--accent-blue);
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(74, 158, 255, 0.25);
  color: white;
}

/* Empty state message */
.empty-state {
  padding: 2rem 1.5rem;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Loading state message */
.loading-state {
  padding: 2rem 1.5rem;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.loading-state p {
  margin: 0;
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

/* Map container */
#map {
  flex: 1;
  background-color: #2d2d2d;
}

/* Leaflet customization */
.leaflet-control-container {
  font-family: inherit;
}

.leaflet-control {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.leaflet-control-zoom-in,
.leaflet-control-zoom-out {
  color: var(--text-primary);
  background-color: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
}

.leaflet-control-zoom-in:hover,
.leaflet-control-zoom-out:hover {
  background-color: var(--hover-bg);
  color: var(--accent-blue);
}

.leaflet-popup-content-wrapper {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
}

.leaflet-popup-content {
  color: var(--text-primary);
  margin: 0;
}

.leaflet-popup-tip {
  background-color: var(--bg-secondary);
  border-color: var(--border-color);
}

/* Information panel at the top of the sidebar.  This panel provides
   instructions about using the site and buttons for exporting/importing
   completion status.  It borrows styling cues from peakbagger: dark
   background, rounded borders, and subtle borders. */
.info-panel {
  margin: 1rem;
  margin-bottom: 0;
  padding: 1rem;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.4;
}
.info-panel strong {
  color: var(--accent-blue);
}
.export-import {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.75rem;
  flex-wrap: wrap;
}
.export-import button,
.export-import label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.4rem 0.75rem;
  background-color: var(--button-green);
  color: white;
  border: none;
  border-radius: 5px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: background-color 0.2s ease;
  text-decoration: none;
}
.export-import button:hover,
.export-import label:hover {
  background-color: var(--button-green-dark);
}
/* Hide file input element */
.export-import input[type="file"] {
  display: none;
}

/* Style for the link to view the GitHub API repository */
.view-api-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.4rem 0.75rem;
  background-color: var(--button-green);
  color: white;
  border: none;
  border-radius: 5px;
  font-size: 0.8rem;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.2s ease;
}
.view-api-link:hover {
  background-color: var(--button-green-dark);
}

/* Trail list styling adjustments for completed status */
#trailList li {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.status-circle {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid var(--border-color);
  margin-left: 0.5rem;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}
.status-circle.completed {
  background-color: var(--success-green);
  border-color: var(--success-green);
}

/* Allow the trail name span to grow, pushing controls to the right */
.trail-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Date display and input styling */
.date-container {
  margin-left: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
}
.date-container .date-icon {
  font-size: 1rem;
  margin-left: 0.25rem;
}
.date-input {
  display: none;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--text-primary);
  padding: 0.2rem;
  margin-left: 0.25rem;
  font-size: 0.85rem;
}
/* invert calendar picker icon colors in date input */
.date-input::-webkit-calendar-picker-indicator {
  filter: invert(1);
}

/* Styling for collapsible instructions */
details summary {
  color: var(--text-primary);
  cursor: pointer;
  font-weight: 600;
  margin-top: 0.5rem;
}
details summary::-webkit-details-marker {
  color: var(--accent-blue);
}
details summary::marker {
  color: var(--accent-blue);
}
details p {
  margin: 0.5rem 0 0;
}

/* Responsive adjustments for smaller screens */
@media (max-width: 1024px) {
  /* Increase sidebar width on medium screens */
  #sidebar {
    width: 35%;
    min-width: 280px;
  }
}

@media (max-width: 768px) {
  /* Stack sidebar and map vertically on small screens */
  #topSection {
    flex-direction: column;
    height: auto;
  }
  #sidebar {
    width: 100%;
    max-width: none;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }
  /* Hide peak info panel on mobile */
  #peakInfoPanel {
    display: none;
  }
  /* Single column on mobile */
  #mapSection {
    flex-direction: column;
  }
  /* Ensure the map container has appropriate margin on mobile */
  #mapContainer {
    margin: 0;
  }
  #map {
    height: 300px;
  }

  #mapContainer {
    min-height: 320px;
  }

  /* Enable smooth touch-based scrolling on mobile */
  #sidebar {
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-y: contain;
  }
  #listSection {
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-y: contain;
  }
  .trail-list-container {
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-y: contain;
  }
  
  /* Allow natural scrolling behavior for the main app container */
  #app {
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-y: auto;
    touch-action: pan-y;
  }
  
  /* Ensure body allows scrolling but contains it */
  body {
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  
  html {
    overflow-y: auto;
  }
      /* Button for launching virtual hike page */
.hike-btn {
  width: 24px;
  height: 24px;
  margin-left: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--button-green); /* reuse existing button color */
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
}
.hike-btn:hover {
  background-color: var(--button-green-dark);
}

}