:root {
  --bg-color: #f5f7fa;
  --text-color: #333;
  --primary-color: #3498db;
  --border-color: #ddd;
  --card-bg: #fff;
}

body {
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial,
    sans-serif;
  margin: 0;
  padding: 0;
  background-color: var(--bg-color);
  color: var(--text-color);
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

header {
  background-color: var(--card-bg);
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 2rem;
}

.toolbar {
  background-color: var(--card-bg);
  padding: 0.75rem 2rem;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  display: flex;
  align-items: center;
  z-index: 10;
  position: relative;
}

.tabs {
  display: flex;
  gap: 1rem;
}

.tab-button {
  background: none;
  border: none;
  padding: 0.5rem 1rem;
  font-size: 1rem;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
  color: var(--text-color);
}

.tab-button:hover {
  color: var(--primary-color);
}

.tab-button.active {
  border-bottom: 2px solid var(--primary-color);
  color: var(--primary-color);
  font-weight: bold;
}

h1 {
  margin: 0;
  font-size: 1.5rem;
}

.controls {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
}

.controls select {
  padding: 0.5rem;
  font-size: 1rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
}

main {
  padding: 2rem;
  flex: 1;
  overflow: hidden;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
}

.view {
  display: none;
  flex: 1;
  overflow: hidden;
}

.view.active {
  display: flex;
}

/* Gallery View */
#gallery-view {
  overflow-y: auto;
}

#gallery-view.active {
  display: block;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1.5rem;
  padding-bottom: 2rem;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1rem;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.card img {
  max-width: 100%;
  max-height: 150px;
  object-fit: contain;
  margin-bottom: 1rem;
  border: 1px solid #eee;
}

.card h3 {
  margin: 0 0 0.5rem 0;
  font-size: 1.1rem;
}

.card p {
  margin: 0;
  font-size: 0.9rem;
  color: #666;
}

/* Page View */
#page-view {
  display: none; /* toggled by JS */
  gap: 2rem;
  height: 100%;
}

#page-view.active {
  display: flex;
}

.page-container {
  flex: 1;
  position: relative;
  background: #ccc;
  overflow: auto;
  border: 1px solid var(--border-color);
  border-radius: 8px;
}

.zoom-controls {
  position: sticky;
  top: 10px;
  left: 10px;
  z-index: 20;
  display: inline-flex;
  gap: 5px;
  background: rgba(255, 255, 255, 0.9);
  padding: 5px;
  border-radius: 6px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
  margin-bottom: -45px; /* Pull image-wrapper up so controls overlay the image */
}

.zoom-btn {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  padding: 5px 10px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: bold;
  color: var(--text-color);
}

.zoom-btn:hover {
  background: #e2e6ea;
}

.image-wrapper {
  position: relative;
  display: inline-block;
  min-width: 100%;
  min-height: 100%;
}

#page-image {
  display: block;
  transform-origin: top left;
}

#overlays-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none; /* Let clicks pass through except on boxes */
}

.bounding-box {
  position: absolute;
  border: 2px solid rgba(52, 152, 219, 0.7);
  background-color: rgba(52, 152, 219, 0.2);
  pointer-events: auto;
  cursor: pointer;
  transition: all 0.2s;
}

.bounding-box:hover,
.bounding-box.selected {
  border-color: #e74c3c;
  background-color: rgba(231, 76, 60, 0.3);
  z-index: 10;
}

.sidebar {
  width: 300px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.5rem;
  overflow-y: auto;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.sidebar h3 {
  margin-top: 0;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.5rem;
}

.details-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.details-card img {
  max-width: 100%;
  border: 1px solid #eee;
  border-radius: 4px;
}

/* LXMON Mapping View */
#lxmon-mapping-view {
  overflow-y: auto;
  padding: 1rem;
  box-sizing: border-box;
  height: 100%;
  min-height: 0;
}

#lxmon-mapping-view.active {
  display: block;
}

/* Mapping View */
#mapping-view {
  position: relative;
  display: none;
  overflow: hidden;
  box-sizing: border-box;
  height: 100%;
  min-height: 0;
  padding: 0;
}

#mapping-view.active {
  display: flex;
}

#mapping-main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-width: 0;
}

#mapping-top-panel {
  height: 50%;
  flex: none; /* Don't grow/shrink, use the fixed 50% height */
  border-bottom: 2px solid var(--border-color);
  display: flex;
  flex-direction: column;
  position: relative;
}

#mapping-container {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
}

.mapping-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 2rem;
  background: var(--card-bg);
}

.mapping-table th,
.mapping-table td {
  border: 1px solid var(--border-color);
  padding: 0.5rem;
  text-align: left;
  vertical-align: middle;
}

.mapping-table th {
  background-color: #eee;
}

.mapping-table td img {
  max-height: 50px;
  border: 1px solid #ccc;
  background-color: #f9f9f9;
}

.reconstructed-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 2rem;
  background: var(--card-bg);
}

.reconstructed-table th,
.reconstructed-table td {
  border: 1px solid var(--border-color);
  padding: 0.5rem;
  text-align: left;
}

.reconstructed-table th {
  background-color: #eee;
}

.badge {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 4px;
  color: white;
  word-break: break-word;
}

.badge.added {
  background-color: #2ecc71;
}

.badge.removed {
  background-color: #e74c3c;
}

#mapping-top-panel.hidden {
  display: none !important;
}

/* Side Sheet Styling */
.side-sheet {
  width: 400px;
  background-color: var(--card-bg);
  border-left: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  transition:
    width 0.3s ease-in-out,
    border-left 0.3s ease-in-out;
  position: relative;
  z-index: 50;
  box-shadow: -2px 0 5px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  flex: none;
}

.side-sheet.hidden {
  width: 0;
  border-left: none;
}

.side-sheet-header {
  padding: 1rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.side-sheet-header h3 {
  margin: 0;
  font-size: 1.2rem;
}

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

#side-sheet-content {
  padding: 1rem;
  overflow-y: auto;
  flex: 1;
}

.similar-match-item {
  border: 1px solid var(--border-color);
  padding: 0.5rem;
  margin-bottom: 0.5rem;
  border-radius: 4px;
  background-color: #fcfcfc;
}

/* Loading Overlay */
#loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: var(--bg-color);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  transition: opacity 0.3s ease-out;
}

#loading-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.loader {
  border: 5px solid #f3f3f3;
  border-top: 5px solid var(--primary-color);
  border-radius: 50%;
  width: 50px;
  height: 50px;
  animation: spin 1s linear infinite;
  margin-bottom: 1rem;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* Highlighted Row for Side Sheet */
#mapping-view tr.highlighted-row td {
  background-color: #e6f7ff !important;
}

@media (prefers-color-scheme: dark) {
  #mapping-view tr.highlighted-row td {
    background-color: rgba(52, 152, 219, 0.2) !important;
  }
}