/* Police Sidekick - Main Stylesheet */

/* CSS Variables */
:root {
  --primary-color: #0066cc;
  --primary-dark: #004c99;
  --secondary-color: #008c42;
  --accent-color: #ff9900;
  --text-color: #333;
  --text-light: #666;
  --background-color: #f5f5f5;
  --surface-color: #ffffff;
  --border-color: #ddd;
  --shadow-color: rgba(0, 0, 0, 0.1);
  --error-color: #dc3545;
  --success-color: #28a745;
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --header-height: 60px;
  --footer-height: 50px;
}

/* Reset & Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  color: var(--text-color);
  background-color: var(--background-color);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Layout */
#app {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
#main-header {
  background-color: var(--primary-color);
  color: white;
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 4px var(--shadow-color);
}

#main-header h1 {
  font-size: 1.25rem;
  font-weight: 600;
}

.btn-link {
  background: none;
  border: none;
  color: var(--primary-color);
  text-decoration: underline;
  cursor: pointer;
  padding: 0;
  font: inherit;
}

.btn-link:hover {
  color: var(--primary-dark);
}

/* Navigation */
#main-nav {
  background-color: var(--surface-color);
  border-bottom: 1px solid var(--border-color);
  padding: 0.5rem 1rem;
}

#main-nav.hidden {
  display: none;
}

#main-nav ul {
  list-style: none;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 0;
  margin: 0;
}

#main-nav a {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 500;
  padding: 0.5rem 0.75rem;
  border-radius: 4px;
  transition: background-color 0.2s, color 0.2s;
}

#main-nav a:hover,
#main-nav a.active {
  background-color: var(--primary-color);
  color: white;
}

.dataset-file-name {
  display: block;
  padding: 0.75rem 0.5rem;
  color: var(--text-color);
  font-size: 0.95rem;
}

.dataset-file-list {
  margin-top: 1.25rem;
  padding: 1rem;
  background: #f8f9fb;
  border: 1px solid #e1e7ee;
  border-radius: 12px;
}

.dataset-file-list h3 {
  margin: 0 0 0.75rem;
  font-size: 1rem;
  color: #0f355d;
}

.dataset-file-list ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.dataset-file-list li {
  margin-bottom: 0.6rem;
}

.dataset-file-list li:last-child {
  margin-bottom: 0;
}

.dataset-file-list .file-link,
.dataset-file-list .dataset-file-name {
  display: flex;
  align-items: center;
  width: 100%;
  padding: 0.8rem 0.9rem;
  background: white;
  border: 1px solid #d6dde6;
  border-radius: 10px;
  text-align: left;
  color: var(--text-color);
  transition: border-color 0.2s, background-color 0.2s, transform 0.2s;
}

.dataset-file-list .file-link:hover,
.dataset-file-list .dataset-file-name:hover {
  border-color: #aac4e1;
  background: #f1f6fb;
  transform: translateY(-1px);
}

.dataset-file-list .file-link {
  text-decoration: none;
  color: inherit;
}

.dataset-file-list .file-link::after {
  content: '›';
  margin-left: auto;
  color: #3b6ca8;
}

.confirm-dialog-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  z-index: 9999;
}

.confirm-dialog-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.confirm-dialog {
  background: white;
  border-radius: 16px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.18);
  width: min(90%, 420px);
  max-width: 420px;
  padding: 1.25rem;
}

.confirm-dialog-header {
  margin-bottom: 0.75rem;
}

.confirm-dialog-title {
  margin: 0;
  font-size: 1.1rem;
}

.confirm-dialog-body {
  margin-bottom: 1rem;
  color: #374151;
  line-height: 1.55;
}

.confirm-dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

/* Main Content */
#main-content {
  flex: 1;
  padding: 1rem;
  min-height: calc(100vh - var(--header-height) - var(--footer-height));
}

/* Views */
.view {
  display: none;
}

.view.active {
  display: block;
}

/* Footer */
#main-footer {
  background-color: var(--surface-color);
  border-top: 1px solid var(--border-color);
  padding: 0.75rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
  color: var(--text-light);
}

#connection-status {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

#connection-status.online {
  color: var(--success-color);
}

#connection-status.offline {
  color: var(--error-color);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  font-size: 1rem;
  font-weight: 500;
  text-align: center;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.2s, transform 0.1s;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background-color: var(--primary-color);
  color: white;
}

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

.btn-secondary {
  background-color: var(--secondary-color);
  color: white;
}

.btn-secondary:hover {
  background-color: #00733b;
}

.btn-danger {
  background-color: var(--error-color);
  color: white;
}

.btn-danger:hover {
  background-color: #c82333;
}

.about-update-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1rem 0;
}

.update-info {
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.update-available {
  color: var(--primary-color);
}

.btn-sm {
  padding: 0.25rem 0.5rem;
  font-size: 0.875rem;
}

.btn-icon {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.25rem;
  color: white;
}

/* Cards */
.card {
  background-color: var(--surface-color);
  border-radius: 8px;
  box-shadow: 0 2px 4px var(--shadow-color);
  padding: 1rem;
  margin-bottom: 1rem;
}

.card-header {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-color);
}

.card-body {
  padding: 0.5rem 0;
}

/* Grid Layout */
.dataset-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.dataset-card {
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

.dataset-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 8px var(--shadow-color);
}

.download-progress {
  width: 100%;
  height: 8px;
  background-color: #e9ecef;
  border-radius: 4px;
  overflow: hidden;
  margin-top: 0.75rem;
}

.download-progress-bar {
  height: 100%;
  background-color: var(--primary-color);
  transition: width 0.2s ease;
}

.dataset-card .card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.dataset-status {
  font-size: 0.75rem;
  padding: 0.125rem 0.375rem;
  border-radius: 4px;
  font-weight: 500;
}

.dataset-status.free {
  background-color: #d4edda;
  color: #155724;
}

.dataset-status.downloaded {
  background-color: #cce5ff;
  color: #004085;
}

.dataset-status.price {
  background-color: #e2f0ff;
  color: #0b3e73;
  border: 1px solid #b8d8ff;
}

.dataset-status.downloading {
  background-color: #fff3cd;
  color: #856404;
}

/* Search */
.search-container {
  margin-bottom: 1rem;
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  align-items: center;
}

.search-container input {
  flex: 1 1 320px;
  min-width: 220px;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background-color: var(--surface-color);
}

.filter-toggle {
  padding: 0.75rem 1rem;
  border-radius: 4px;
  border: 1px solid var(--border-color);
  background: #f4f6fb;
  color: var(--text-color);
  cursor: pointer;
  transition: background-color 0.2s, border-color 0.2s, color 0.2s;
}

.filter-toggle:hover {
  background: #e8eff8;
}

.filter-toggle.active {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.offline-note {
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  background-color: #fff3cd;
  color: #856404;
  border: 1px solid #ffeeba;
  border-radius: 6px;
}

.error-note {
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  background-color: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
  border-radius: 6px;
}

.error-note {
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  background-color: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
  border-radius: 6px;
}

.search-container input {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background-color: var(--surface-color);
}

/* Loading */
.loading {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 2rem;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--border-color);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* Progress Bar */
.progress-container {
  width: 100%;
  background-color: var(--border-color);
  border-radius: 4px;
  overflow: hidden;
  margin: 0.5rem 0;
}

.progress-bar {
  height: 8px;
  background-color: var(--primary-color);
  width: 0%;
  transition: width 0.3s ease;
}

/* Download Button */
.download-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.download-btn.downloading {
  background-color: var(--accent-color);
  cursor: not-allowed;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-light);
}

.empty-state-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

/* Responsive */
@media (max-width: 768px) {
  #main-header h1 {
    font-size: 1rem;
  }
  
  #main-nav {
    padding: 0.5rem;
  }
  
  #main-nav ul {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  #main-content {
    padding: 0.75rem;
  }
  
  .dataset-grid {
    grid-template-columns: 1fr;
  }
}

.dataset-detail-card {
  margin-top: 1rem;
}

.dataset-detail-meta {
  list-style: none;
  padding-left: 0;
  margin: 1rem 0;
}

.dataset-detail-meta li {
  margin-bottom: 0.5rem;
}

.dataset-detail-actions {
  margin-top: 1rem;
}

.bundle-section {
  margin-top: 1.5rem;
  padding: 1rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background-color: #fafafa;
}

.bundle-section h3 {
  margin-bottom: 0.75rem;
}

.bundle-section ul {
  margin: 0;
  padding-left: 1.25rem;
}

.file-viewer-header {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.file-viewer-header .card-header {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.file-viewer-header .file-viewer-file {
  font-size: 0.95rem;
  color: var(--text-light);
}

#file-viewer-frame {
  width: 100%;
  min-height: 70vh;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  margin-top: 1rem;
}

.text-center {
  text-align: center;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }