/* ============================================
   AI Image Catalog - Styles
   ============================================ */

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Oxygen, Ubuntu, Cantarell, sans-serif;
  background: #f0f2f5;
  color: #1a1a2e;
  line-height: 1.6;
  min-height: 100vh;
}

/* --- Header --- */
.site-header {
  background: linear-gradient(135deg, #0f0f1a 0%, #1e1e3a 100%);
  color: #fff;
  padding: 2.5rem 2rem 2rem;
  text-align: center;
}

.site-header h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.site-header .subtitle {
  color: #9ca3af;
  margin-top: 0.4rem;
  font-size: 1rem;
}

.header-logo {
  color: #fff;
  text-decoration: none;
  transition: opacity 0.15s;
}

.header-logo:hover {
  opacity: 0.85;
}

.header-stats {
  margin-top: 1rem;
  font-size: 0.85rem;
  color: #6366f1;
  font-weight: 600;
}

/* --- Toolbar --- */
.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 2rem;
  background: #fff;
  border-bottom: 1px solid #e5e7eb;
  position: sticky;
  top: 0;
  z-index: 20;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.toolbar-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.search-input {
  padding: 0.5rem 0.85rem;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  font-size: 0.9rem;
  width: 240px;
  outline: none;
  transition: border-color 0.2s;
}

.search-input:focus {
  border-color: #6366f1;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.filter-buttons {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.filter-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: #6b7280;
  margin-right: 0.15rem;
}

.filter-btn {
  padding: 0.35rem 0.75rem;
  border: 1px solid #e5e7eb;
  border-radius: 6px;
  background: #fff;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.15s;
  color: #6b7280;
  font-weight: 500;
}

.filter-btn:hover {
  border-color: #c7d2fe;
  color: #4f46e5;
}

.filter-btn.active {
  background: #6366f1;
  color: #fff;
  border-color: #6366f1;
}

.toolbar-right {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.add-btn {
  background: #6366f1;
  color: #fff;
  border: none;
  padding: 0.5rem 1.1rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background 0.15s;
  white-space: nowrap;
}

.add-btn:hover {
  background: #4f46e5;
}

/* --- Dark Mode Toggle --- */
.dark-mode-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  background: #fff;
  cursor: pointer;
  color: #6b7280;
  transition: all 0.15s;
}

.dark-mode-btn:hover {
  border-color: #c7d2fe;
  color: #4f46e5;
}

/* --- Settings Button & Status --- */
.settings-btn {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.75rem;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  background: #fff;
  cursor: pointer;
  font-size: 0.8rem;
  color: #6b7280;
  transition: all 0.15s;
  white-space: nowrap;
}

.settings-btn:hover {
  border-color: #c7d2fe;
  color: #4f46e5;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #d1d5db;
  flex-shrink: 0;
}

.status-dot.connected {
  background: #22c55e;
}

.status-text {
  font-weight: 500;
}

/* --- Settings Panel --- */
.settings-panel {
  background: #fff;
  border-bottom: 2px solid #f59e0b;
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.35s ease;
}

.settings-panel.open {
  max-height: 600px;
}

.settings-container {
  padding: 1.5rem 2rem 2rem;
  max-width: 860px;
  margin: 0 auto;
}

.settings-container h2 {
  font-size: 1.25rem;
  margin-bottom: 0.25rem;
}

.settings-description {
  font-size: 0.85rem;
  color: #9ca3af;
  margin-bottom: 1.25rem;
}

.settings-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.settings-hint {
  font-size: 0.8rem;
  color: #9ca3af;
  margin-top: 1rem;
  line-height: 1.5;
}

.settings-hint strong {
  color: #374151;
}

.settings-divider {
  border-top: 1px solid #e5e7eb;
  margin: 1.25rem 0;
}

.settings-section-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.settings-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
}

/* --- Form Panel --- */
.form-panel {
  background: #fff;
  border-bottom: 2px solid #6366f1;
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.35s ease;
}

.form-panel.open {
  max-height: 900px;
}

.form-container {
  padding: 1.5rem 2rem 2rem;
  max-width: 860px;
  margin: 0 auto;
}

.form-container h2 {
  font-size: 1.25rem;
  margin-bottom: 0.25rem;
}

.form-description {
  font-size: 0.85rem;
  color: #9ca3af;
  margin-bottom: 1.25rem;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-group label {
  font-size: 0.8rem;
  font-weight: 600;
  color: #374151;
}

.form-group label .optional {
  font-weight: 400;
  color: #9ca3af;
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 0.55rem 0.75rem;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  font-size: 0.9rem;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: #6366f1;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 80px;
}

.form-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.btn {
  padding: 0.55rem 1.2rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.15s;
}

.btn-primary {
  background: #6366f1;
  color: #fff;
}

.btn-primary:hover {
  background: #4f46e5;
}

.btn-save {
  background: #059669;
  color: #fff;
}

.btn-save:hover {
  background: #047857;
}

.btn-github {
  background: #1a1a2e;
  color: #fff;
}

.btn-github:hover {
  background: #2d2d4a;
}

.btn-github:disabled {
  background: #9ca3af;
  cursor: not-allowed;
  opacity: 0.7;
}

.form-actions-spacer {
  flex: 1;
}

.btn-secondary {
  background: #f3f4f6;
  color: #374151;
}

.btn-secondary:hover {
  background: #e5e7eb;
}

.btn-small {
  padding: 0.3rem 0.7rem;
  font-size: 0.8rem;
  background: #f3f4f6;
  color: #374151;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}

.btn-small:hover {
  background: #e5e7eb;
}

/* --- Markdown Output --- */
.markdown-output {
  display: none;
  margin-top: 1.25rem;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  overflow: hidden;
}

.markdown-output.visible {
  display: block;
}

.output-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0.85rem;
  background: #f9fafb;
  border-bottom: 1px solid #e5e7eb;
  font-size: 0.8rem;
  font-weight: 600;
  color: #6b7280;
}

.markdown-output pre {
  padding: 1rem;
  background: #1e1e2e;
  color: #cdd6f4;
  font-size: 0.82rem;
  line-height: 1.6;
  overflow-x: auto;
  margin: 0;
}

.markdown-output code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

.output-hint {
  padding: 0.6rem 0.85rem;
  font-size: 0.8rem;
  color: #6b7280;
  background: #f9fafb;
  border-top: 1px solid #e5e7eb;
}

.output-hint code {
  background: #e5e7eb;
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
  font-size: 0.78rem;
}

/* --- Catalog Grid --- */
.catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.5rem;
  padding: 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

/* --- Card --- */
.card {
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  transition: transform 0.2s, box-shadow 0.2s;
  position: relative;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.card-image-link {
  display: block;
  overflow: hidden;
  cursor: pointer;
}

.card-image {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
  transition: transform 0.3s;
}

.card:hover .card-image {
  transform: scale(1.03);
}

.card-body {
  padding: 1.15rem 1.25rem 1.25rem;
}

.card-title {
  font-size: 1.1rem;
  font-weight: 650;
  margin-bottom: 0.6rem;
  line-height: 1.3;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 0.6rem;
}

.card-meta-actions {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin-left: auto;
}

.platform-badge {
  padding: 0.15rem 0.55rem;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.platform-badge.gemini       { background: #e8f0fe; color: #4285f4; }
.platform-badge.grok         { background: #fff7ed; color: #ea580c; }
.platform-badge.meta-ai      { background: #e7f0ff; color: #0668e1; }
.platform-badge.chatgpt      { background: #ecfdf5; color: #059669; }
.platform-badge.midjourney   { background: #fdf4ff; color: #a855f7; }
.platform-badge.other        { background: #f3f4f6; color: #6b7280; }

.card-date {
  font-size: 0.78rem;
  color: #9ca3af;
}

.card-tags {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}

.tag {
  background: #f3f4f6;
  color: #6b7280;
  padding: 0.12rem 0.5rem;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 500;
}

.card-prompt {
  background: #f9fafb;
  border-left: 3px solid #6366f1;
  padding: 0.65rem 0.85rem;
  font-size: 0.84rem;
  color: #4b5563;
  line-height: 1.55;
  border-radius: 0 6px 6px 0;
}

.prompt-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 0.4rem;
}

.prompt-toggle {
  background: none;
  border: none;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  padding: 0;
  color: #6366f1;
}

.prompt-toggle:hover {
  color: #4f46e5;
}

.prompt-copy {
  background: none;
  border: 1px solid #e5e7eb;
  border-radius: 4px;
  padding: 0.1rem 0.45rem;
  font-size: 0.7rem;
  font-weight: 600;
  color: #9ca3af;
  cursor: pointer;
  transition: all 0.15s;
}

.prompt-copy:hover {
  border-color: #6366f1;
  color: #6366f1;
}

/* --- Share Button --- */
.share-btn {
  background: none;
  border: 1px solid #e5e7eb;
  border-radius: 4px;
  padding: 0.1rem 0.45rem;
  font-size: 0.7rem;
  font-weight: 600;
  color: #9ca3af;
  cursor: pointer;
  transition: all 0.15s;
}

.share-btn:hover {
  border-color: #6366f1;
  color: #6366f1;
}

.card-edit-btn {
  background: none;
  border: 1px solid #e5e7eb;
  border-radius: 4px;
  padding: 0.1rem 0.45rem;
  font-size: 0.7rem;
  font-weight: 600;
  color: #9ca3af;
  cursor: pointer;
  transition: all 0.15s;
}

.card-edit-btn:hover {
  border-color: #6366f1;
  color: #6366f1;
}

/* --- Load More --- */
.load-more-section {
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 2rem 2.5rem;
}

.showing-count {
  font-size: 0.85rem;
  color: #9ca3af;
}

.btn-load-more {
  padding: 0.6rem 2rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid #d1d5db;
  background: #fff;
  color: #374151;
  transition: all 0.15s;
}

.btn-load-more:hover {
  border-color: #6366f1;
  color: #6366f1;
}

/* --- Modal --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal {
  background: #fff;
  border-radius: 12px;
  padding: 1.75rem;
  max-width: 400px;
  width: 90%;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

.modal h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

.modal p {
  font-size: 0.9rem;
  color: #6b7280;
  margin-bottom: 1.25rem;
  line-height: 1.5;
}

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

.btn-danger {
  background: #ef4444;
  color: #fff;
  padding: 0.55rem 1.2rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: background 0.15s;
}

.btn-danger:hover {
  background: #dc2626;
}

/* --- Empty & Error States --- */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  color: #9ca3af;
}

.empty-state p {
  font-size: 1rem;
}

.error-state {
  text-align: center;
  padding: 3rem 2rem;
  color: #9ca3af;
  max-width: 520px;
  margin: 0 auto;
}

.error-state h3 {
  color: #374151;
  margin-bottom: 0.5rem;
}

.error-state code {
  background: #1e1e2e;
  color: #cdd6f4;
  display: block;
  padding: 0.6rem 1rem;
  border-radius: 6px;
  margin-top: 0.75rem;
  font-size: 0.85rem;
}

/* --- Toast --- */
.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: #1e1e2e;
  color: #fff;
  padding: 0.7rem 1.4rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
  z-index: 100;
  pointer-events: none;
  white-space: nowrap;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* --- Footer --- */
.site-footer {
  text-align: center;
  padding: 2rem 1.5rem;
  font-size: 0.82rem;
  color: #9ca3af;
  border-top: 1px solid #e5e7eb;
}

.site-footer a {
  color: #6366f1;
  text-decoration: none;
  font-weight: 500;
}

.site-footer a:hover {
  text-decoration: underline;
}

.footer-links {
  margin-top: 0.35rem;
}

/* --- Dark Mode Transition --- */
body,
.toolbar,
.card,
.form-panel,
.settings-panel,
.search-input,
.form-group input,
.form-group select,
.form-group textarea,
.card-prompt,
.modal {
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

/* --- Dark Mode --- */
body.dark {
  background: #0f172a;
  color: #e2e8f0;
}

body.dark .site-header {
  background: linear-gradient(135deg, #020617 0%, #0f172a 100%);
}

body.dark .site-header .subtitle {
  color: #64748b;
}

body.dark .toolbar {
  background: #1e293b;
  border-bottom-color: #334155;
}

body.dark .search-input {
  background: #0f172a;
  border-color: #334155;
  color: #e2e8f0;
}

body.dark .search-input:focus {
  border-color: #6366f1;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

body.dark .filter-label {
  color: #94a3b8;
}

body.dark .filter-btn {
  background: #1e293b;
  border-color: #334155;
  color: #94a3b8;
}

body.dark .filter-btn:hover {
  border-color: #6366f1;
  color: #c7d2fe;
}

body.dark .filter-btn.active {
  background: #6366f1;
  color: #fff;
  border-color: #6366f1;
}

body.dark .dark-mode-btn {
  background: #1e293b;
  border-color: #334155;
  color: #94a3b8;
}

body.dark .dark-mode-btn:hover {
  border-color: #6366f1;
  color: #c7d2fe;
}

body.dark .settings-btn {
  background: #1e293b;
  border-color: #334155;
  color: #94a3b8;
}

body.dark .settings-btn:hover {
  border-color: #6366f1;
  color: #c7d2fe;
}

body.dark .card {
  background: #1e293b;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

body.dark .card:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

body.dark .card-title {
  color: #f1f5f9;
}

body.dark .card-date {
  color: #64748b;
}

body.dark .tag {
  background: #334155;
  color: #94a3b8;
}

body.dark .card-prompt {
  background: #0f172a;
  border-left-color: #6366f1;
  color: #94a3b8;
}

body.dark .share-btn {
  border-color: #334155;
  color: #64748b;
}

body.dark .share-btn:hover {
  border-color: #6366f1;
  color: #6366f1;
}

body.dark .card-edit-btn {
  border-color: #334155;
  color: #64748b;
}

body.dark .card-edit-btn:hover {
  border-color: #6366f1;
  color: #6366f1;
}

body.dark .prompt-copy {
  border-color: #334155;
  color: #64748b;
}

body.dark .prompt-copy:hover {
  border-color: #6366f1;
  color: #6366f1;
}

body.dark .form-panel {
  background: #1e293b;
}

body.dark .form-container h2,
body.dark .settings-container h2 {
  color: #f1f5f9;
}

body.dark .form-description,
body.dark .settings-description {
  color: #64748b;
}

body.dark .form-group label {
  color: #94a3b8;
}

body.dark .form-group input,
body.dark .form-group select,
body.dark .form-group textarea {
  background: #0f172a;
  border-color: #334155;
  color: #e2e8f0;
}

body.dark .form-group input:focus,
body.dark .form-group select:focus,
body.dark .form-group textarea:focus {
  border-color: #6366f1;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

body.dark .settings-panel {
  background: #1e293b;
}

body.dark .settings-divider {
  border-top-color: #334155;
}

body.dark .settings-section-title {
  color: #f1f5f9;
}

body.dark .settings-hint {
  color: #64748b;
}

body.dark .settings-hint strong {
  color: #94a3b8;
}

body.dark .btn-secondary {
  background: #334155;
  color: #e2e8f0;
}

body.dark .btn-secondary:hover {
  background: #475569;
}

body.dark .markdown-output {
  border-color: #334155;
}

body.dark .output-header {
  background: #0f172a;
  border-bottom-color: #334155;
  color: #64748b;
}

body.dark .btn-small {
  background: #334155;
  color: #e2e8f0;
}

body.dark .btn-small:hover {
  background: #475569;
}

body.dark .btn-load-more {
  background: #1e293b;
  border-color: #334155;
  color: #94a3b8;
}

body.dark .btn-load-more:hover {
  border-color: #6366f1;
  color: #6366f1;
}

body.dark .showing-count {
  color: #64748b;
}

body.dark .empty-state,
body.dark .error-state {
  color: #64748b;
}

body.dark .modal {
  background: #1e293b;
}

body.dark .modal h3 {
  color: #f1f5f9;
}

body.dark .modal p {
  color: #94a3b8;
}

body.dark .toast {
  background: #334155;
}

body.dark .site-footer {
  color: #64748b;
  border-top-color: #334155;
}

body.dark .site-footer a {
  color: #818cf8;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .site-header {
    padding: 1.75rem 1.25rem 1.5rem;
  }

  .site-header h1 {
    font-size: 1.5rem;
  }

  .toolbar {
    padding: 0.65rem 1rem;
  }

  .search-input {
    width: 100%;
    order: 3;
  }

  .toolbar-left {
    width: 100%;
  }

  .filter-buttons {
    flex-wrap: wrap;
  }

  .catalog-grid {
    grid-template-columns: 1fr;
    padding: 1rem;
    gap: 1rem;
  }

  .form-container {
    padding: 1.25rem 1rem 1.5rem;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .form-panel.open {
    max-height: 1200px;
  }

  .settings-panel.open {
    max-height: 800px;
  }

  .settings-grid {
    grid-template-columns: 1fr;
  }

  .settings-container {
    padding: 1.25rem 1rem 1.5rem;
  }

  .toolbar-right {
    width: 100%;
    justify-content: space-between;
  }

  .form-actions {
    flex-wrap: wrap;
  }

  .form-actions-spacer {
    display: none;
  }
}

@media (max-width: 480px) {
  .site-header h1 {
    font-size: 1.3rem;
  }

  .card-body {
    padding: 1rem;
  }
}