/* ==========================================================================
   Metadata Viewer — Universal File & Media Metadata Analyzer
   ========================================================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #ea580c;
  --primary-dark: #c2410c;
  --primary-light: #f97316;
  --secondary: #f59e0b;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --page-gradient: linear-gradient(135deg, #fff7ed 0%, #ffedd5 48%, #fef3c7 100%);
  --surface: #ffffff;
  --surface-muted: #fffaf5;
  --interactive-soft: #ffedd5;
  --interactive-strong: #fed7aa;
  --accent-contrast: #7c2d12;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
}

body {
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Helvetica Neue",
    Arial, sans-serif;
  background: var(--page-gradient);
  min-height: 100vh;
  color: var(--gray-900);
  line-height: 1.6;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px;
}

/* Loading overlay */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.95);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  backdrop-filter: blur(8px);
}
.loading-spinner {
  width: 60px;
  height: 60px;
  border: 4px solid var(--gray-200);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
.loading-overlay p {
  margin-top: 20px;
  font-size: 16px;
  color: var(--gray-700);
  font-weight: 500;
}

.hidden {
  display: none !important;
}

/* Header */
.header {
  background: var(--surface);
  padding: 24px 32px;
  border-radius: 16px;
  margin-bottom: 24px;
  box-shadow: var(--shadow);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.logo {
  display: flex;
  align-items: center;
  gap: 16px;
}
.logo h1 {
  font-size: 26px;
  font-weight: 700;
  color: var(--gray-900);
  margin: 0;
}
.subtitle {
  font-size: 14px;
  color: var(--gray-500);
  margin: 0;
}
.header-privacy {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--gray-600);
  font-size: 13px;
  background: var(--surface-muted);
  padding: 8px 14px;
  border-radius: 10px;
}
.header-tools {
  display: flex;
  align-items: center;
  gap: 10px;
}
.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  border: 1px solid var(--interactive-strong);
  border-radius: 10px;
  padding: 8px 12px;
  color: var(--primary-dark);
  background: var(--interactive-soft);
  font: inherit;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s ease;
}
.theme-toggle:hover {
  color: white;
  background: var(--primary);
  border-color: var(--primary);
  transform: translateY(-1px);
}
.theme-icon {
  font-size: 16px;
  line-height: 1;
}
.theme-icon-moon { display: none; }

/* Upload section */
.upload-section {
  margin-bottom: 24px;
}
.upload-container {
  background: var(--surface);
  border-radius: 16px;
  padding: 48px;
  box-shadow: var(--shadow);
}
.upload-area {
  border: 2px dashed var(--gray-300);
  border-radius: 12px;
  padding: 48px 32px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  background: var(--gray-50);
}
.upload-area:hover {
  border-color: var(--primary);
  background: var(--interactive-soft);
  transform: translateY(-2px);
}
.upload-area.dragover {
  border-color: var(--primary);
  background: var(--interactive-strong);
  transform: scale(1.01);
}
.upload-icon {
  margin: 0 auto 24px;
  opacity: 0.8;
}
.upload-area h2 {
  font-size: 24px;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 8px;
}
.upload-description {
  color: var(--gray-500);
  margin-bottom: 6px;
  font-size: 15px;
}
.upload-formats {
  font-weight: 600;
  color: var(--primary-dark);
  margin-bottom: 20px;
  font-size: 15px;
}
.upload-formats-label {
  display: inline-block;
  max-width: 100%;
  overflow: hidden;
  vertical-align: bottom;
}
.mobile-break {
  display: none;
}
.format-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}
.chip {
  font-size: 12.5px;
  color: var(--gray-600);
  background: var(--gray-100);
  padding: 6px 12px;
  border-radius: 20px;
}
.security-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 24px;
  color: var(--gray-600);
  font-size: 13px;
  justify-content: center;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: none;
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}
.btn-primary {
  background: var(--primary);
  color: white;
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}
.btn-secondary {
  background: var(--gray-100);
  color: var(--gray-700);
}
.btn-secondary:hover {
  background: var(--gray-200);
}
.btn-danger {
  background: var(--danger);
  color: white;
}
.btn-danger:hover {
  background: #c52a2a;
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}
.btn-small {
  padding: 6px 12px;
  font-size: 12.5px;
}
.btn-small.btn-primary {
  background: var(--primary);
  color: white;
}
.quick-actions {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.quick-actions .btn {
  flex: 1;
  min-width: 120px;
}

/* Cards & layout */
.main-grid {
  display: grid;
  grid-template-columns: 1.1fr 1.4fr;
  gap: 24px;
}
.preview-section {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.metadata-section {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.card {
  background: var(--surface);
  border-radius: 16px;
  box-shadow: var(--shadow);
  overflow: hidden;
  animation: fadeIn 0.4s ease;
}
.card-header {
  background: var(--gray-50);
  padding: 16px 24px;
  border-bottom: 1px solid var(--gray-100);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.card-header h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--gray-800);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}
.card-header-col {
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}
.badge {
  font-size: 12px;
  font-weight: 600;
  color: var(--primary-dark);
  background: var(--interactive-soft);
  padding: 4px 12px;
  border-radius: 20px;
}
.badge-count {
  color: var(--primary);
  background: var(--interactive-strong);
}
.badge-link {
  color: var(--gray-600);
  background: var(--gray-100);
  cursor: pointer;
}
.badge-link:hover {
  background: var(--gray-200);
  color: var(--gray-800);
}
.badge.badge-time {
  color: var(--gray-600);
  background: #f3f4f6;
}

.preview-container {
  padding: 28px 24px;
  text-align: center;
  min-height: 260px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.preview-container img,
.preview-container video {
  max-width: 100%;
  max-height: 480px;
  border-radius: 10px;
  box-shadow: var(--shadow-sm);
}
.preview-container iframe {
  width: 100%;
  height: 460px;
  border: 1px solid var(--gray-200);
  border-radius: 10px;
}
.preview-container .file-placeholder {
  text-align: center;
  color: var(--gray-500);
}
.file-placeholder .placeholder-icon {
  font-size: 64px;
  margin-bottom: 12px;
  opacity: 0.55;
}
.file-placeholder .placeholder-sub {
  font-size: 14px;
  color: var(--gray-400);
}
.text-preview {
  background: var(--gray-900);
  color: #d1d8ff;
  padding: 20px;
  border-radius: 12px;
  max-height: 460px;
  overflow: auto;
  font-size: 12.5px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
  text-align: left;
}
.entry-list {
  max-height: 320px;
  overflow-y: auto;
  padding: 14px 20px;
}
.entry-list ol {
  list-style: decimal inside;
  font-size: 12.5px;
  color: var(--gray-800);
  white-space: pre-wrap;
  word-break: break-all;
}
.cover-art {
  max-width: 180px;
  max-height: 180px;
  border-radius: 10px;
  margin-top: 10px;
  box-shadow: var(--shadow-sm);
}

.image-details {
  padding: 16px 20px;
}
.detail-row {
  display: flex;
  justify-content: space-between;
  padding: 9px 0;
  border-bottom: 1px solid var(--gray-100);
  font-size: 14px;
}
.detail-row:last-child {
  border-bottom: none;
}
.detail-label {
  font-weight: 600;
  color: var(--gray-600);
}
.detail-value {
  color: var(--gray-900);
  text-align: right;
  word-break: break-word;
  word-break: break-all;
}
.detail-value.mono {
  font-family:
    ui-monospace, "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 12.5px;
}

.metadata-grid {
  padding: 20px 24px;
  display: grid;
  gap: 12px;
}
.metadata-item {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 14px;
  padding: 12px 14px;
  background: var(--gray-50);
  border-radius: 8px;
  border-left: 3px solid var(--primary);
  align-items: start;
}
.metadata-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-700);
  word-break: break-word;
}
.metadata-value {
  font-size: 13px;
  color: var(--gray-900);
  word-break: break-word;
  word-break: break-all;
}
.metadata-scroll {
  max-height: 520px;
  overflow-y: auto;
  padding: 20px 24px;
}
.metadata-scroll::-webkit-scrollbar {
  width: 8px;
}
.metadata-scroll::-webkit-scrollbar-track {
  background: var(--gray-100);
  border-radius: 4px;
}
.metadata-scroll::-webkit-scrollbar-thumb {
  background: var(--gray-400);
  border-radius: 4px;
}
.metadata-scroll::-webkit-scrollbar-thumb:hover {
  background: var(--gray-500);
}
.no-data {
  padding: 40px 20px;
  text-align: center;
  color: var(--gray-400);
  font-style: italic;
  font-size: 14px;
}

.gps-grid {
  padding: 20px 24px;
  display: grid;
  gap: 12px;
}
.gps-item {
  display: flex;
  justify-content: space-between;
  padding: 12px;
  background: var(--gray-50);
  border-radius: 8px;
}
.gps-label {
  font-weight: 600;
  color: var(--gray-700);
  font-size: 14px;
}
.gps-value {
  color: var(--gray-900);
  font-size: 14px;
  word-break: break-all;
}
.map-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  padding: 12px 20px;
  background: var(--primary);
  color: white;
  text-decoration: none;
  border-radius: 8px;
  font-weight: 600;
  font-size: 14px;
  transition: all 0.2s ease;
}
.map-link:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

/* Category cards specific */
.category-card .metadata-grid {
  padding: 14px 16px;
}
.category-card .no-data {
  padding: 24px 16px;
}

/* All Metadata toolbar */
.metadata-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 24px 12px;
  border-bottom: 1px solid var(--gray-100);
  background: var(--gray-50);
}
.search-input {
  flex: 1;
  padding: 10px 14px;
  border: 1px solid var(--gray-300);
  border-radius: 8px;
  font-size: 13.5px;
  outline: none;
}
.search-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.category-card {
  border-left: 4px solid var(--primary);
}
.category-card.card-header {
  background: var(--gray-50);
}
.card-header .card-icon {
  color: var(--secondary);
}

.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 9000;
}
.toast {
  min-width: 260px;
  max-width: 420px;
  padding: 14px 18px;
  border-radius: 10px;
  color: white;
  font-size: 14px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 10px;
  opacity: 0;
  transform: translateX(120%);
  transition:
    opacity 0.25s ease,
    transform 0.25s ease;
}
.toast.show {
  opacity: 1;
  transform: translateX(0);
}
.toast.success {
  background: linear-gradient(135deg, var(--success), #059669);
}
.toast.error {
  background: linear-gradient(135deg, var(--danger), #b91c1c);
}
.toast.info {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
}
.toast .toast-icon {
  font-size: 16px;
}
.toast .toast-close {
  margin-left: auto;
  cursor: pointer;
  opacity: 0.8;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.content-area {
  animation: fadeIn 0.45s ease;
}
.category-card {
  animation: fadeIn 0.45s ease;
}
.category-card:nth-child(2) {
  animation-delay: 0.05s;
}
.category-card:nth-child(3) {
  animation-delay: 0.1s;
}

@media (max-width: 768px) {
  .container {
    padding: 12px;
  }
  .header {
    padding: 20px;
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
  .upload-container {
    padding: 20px 12px;
  }
  .upload-area {
    padding: 20px 12px;
  }
  .upload-icon {
    width: 40px;
    height: 40px;
    margin-bottom: 10px;
  }
  .upload-area h2 {
    font-size: 20px;
  }
  .upload-description,
  .upload-formats {
    font-size: 13px;
  }
  .upload-formats {
    margin-bottom: 12px;
    overflow: visible;
    text-align: center;
  }
  .upload-formats-label {
    font-size: 13px;
    white-space: normal;
    transform: none;
  }
  .typing-gap {
    display: none;
  }
  .mobile-break {
    display: block;
  }
  .quick-actions {
    flex-direction: column;
  }
  .btn {
    width: 100%;
    justify-content: center;
  }
  .main-grid {
    grid-template-columns: 1fr;
  }
  .metadata-item {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .detail-value {
    text-align: right;
  }
  .header-privacy {
    font-size: 12px;
  }
  .header-tools {
    flex-wrap: wrap;
    justify-content: center;
  }
  .format-chips {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px;
  }
  .chip {
    padding: 5px 6px;
    font-size: 10px;
  }
}

[data-theme="dark"] {
  --primary: #3b82f6;
  --primary-dark: #2563eb;
  --primary-light: #60a5fa;
  --secondary: #1d4ed8;
  --gray-50: #172033;
  --gray-100: #1e293b;
  --gray-200: #334155;
  --gray-300: #475569;
  --gray-400: #94a3b8;
  --gray-500: #94a3b8;
  --gray-600: #cbd5e1;
  --gray-700: #e2e8f0;
  --gray-800: #f1f5f9;
  --gray-900: #f8fafc;
  --page-gradient: linear-gradient(135deg, #0f172a 0%, #172554 52%, #111827 100%);
  --surface: #111827;
  --surface-muted: #1e293b;
  --interactive-soft: #172554;
  --interactive-strong: #1e3a8a;
  --accent-contrast: #bfdbfe;
}
[data-theme="dark"] .theme-icon-sun { display: none; }
[data-theme="dark"] .theme-icon-moon { display: inline; }
[data-theme="dark"] .theme-toggle:hover {
  background: var(--primary-dark);
  border-color: var(--primary);
}
[data-theme="dark"] .loading-overlay {
  background: rgba(15, 23, 42, 0.95);
}
[data-theme="dark"] .btn-danger:hover { background: #b91c1c; }