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

:root {
  /* Dark Mode Variables (Default) */
  --bg-primary: #0a0a0c;
  --bg-secondary: #121216;
  --bg-tertiary: #1b1b22;
  --accent-color: #6366f1;
  --accent-hover: #4f46e5;
  --accent-rgb: 99, 102, 241;
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --border-color: rgba(255, 255, 255, 0.08);
  --card-shadow: 0 15px 35px -15px rgba(0, 0, 0, 0.6);
  --glass-bg: rgba(18, 18, 22, 0.8);
  --glass-border: rgba(255, 255, 255, 0.06);
  --scrollbar-bg: #0a0a0c;
  --scrollbar-thumb: #2d2d39;
  --danger-color: #ef4444;
  --danger-hover: #dc2626;
  --success-color: #10b981;
}

:root.light-mode {
  /* Light Mode Variables */
  --bg-primary: #f3f4f6;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f3f4f6;
  --accent-color: #4f46e5;
  --accent-hover: #3730a3;
  --accent-rgb: 79, 70, 229;
  --text-primary: #111827;
  --text-secondary: #6b7280;
  --border-color: rgba(0, 0, 0, 0.08);
  --card-shadow: 0 15px 35px -15px rgba(0, 0, 0, 0.12);
  --glass-bg: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(0, 0, 0, 0.06);
  --scrollbar-bg: #f3f4f6;
  --scrollbar-thumb: #d1d5db;
  --danger-color: #ef4444;
  --danger-hover: #dc2626;
  --success-color: #10b981;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: 'Outfit', 'Inter', system-ui, -apple-system, sans-serif;
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Scrollbar styling */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--scrollbar-bg);
}
::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-color);
}

/* Layout Containers */
.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Header & Navigation */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--glass-border);
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  transition: background 0.3s ease, border-color 0.3s ease;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--text-primary);
}

.logo-icon {
  font-size: 1.8rem;
  color: var(--accent-color);
  animation: float 3s ease-in-out infinite;
}

.logo-text {
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Search Bar styling */
.search-container {
  flex: 1;
  max-width: 600px;
  position: relative;
}

.search-input {
  width: 100%;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 0.75rem 1rem 0.75rem 2.8rem;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: inherit;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.search-input:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.15);
  background: var(--bg-secondary);
}

.search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
  pointer-events: none;
}

/* Actions Menu */
.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.6rem 1.2rem;
  border-radius: 10px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: all 0.2s ease;
}

.nav-btn:hover {
  color: var(--text-primary);
  background: var(--border-color);
}

.nav-btn.active {
  color: var(--text-primary);
  background: var(--accent-color);
  box-shadow: 0 4px 12px rgba(var(--accent-rgb), 0.3);
}

.theme-toggle {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 42px;
  height: 42px;
  border-radius: 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.theme-toggle:hover {
  background: var(--border-color);
  transform: scale(1.05);
}

/* Main Content Area */
main {
  flex: 1;
  padding: 2rem;
  max-width: 1600px;
  width: 100%;
  margin: 0 auto;
}

/* Filter Controls */
.filter-section {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
}

.filter-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.filter-label {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-secondary);
  min-width: 80px;
}

.filter-pills {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.pill {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.5rem 1.1rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.pill:hover {
  color: var(--text-primary);
  border-color: var(--text-secondary);
  background: var(--bg-tertiary);
}

.pill.active {
  background: var(--accent-color);
  border-color: var(--accent-color);
  color: white;
  box-shadow: 0 4px 12px rgba(var(--accent-rgb), 0.25);
}

.stat-pills {
  display: flex;
  gap: 1rem;
  margin-top: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.stat-pills span {
  background: var(--bg-secondary);
  padding: 0.25rem 0.75rem;
  border-radius: 6px;
  border: 1px solid var(--border-color);
}

/* Pinterest Masonry Grid */
.masonry-container {
  width: 100%;
}

.masonry-grid {
  columns: 5 280px;
  column-gap: 1.25rem;
  width: 100%;
}

.masonry-item {
  break-inside: avoid;
  margin-bottom: 1.25rem;
  background: var(--bg-secondary);
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: var(--card-shadow);
  position: relative;
  cursor: pointer;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease, border-color 0.3s ease;
}

.masonry-item:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.8);
  border-color: rgba(var(--accent-rgb), 0.4);
}

:root.light-mode .masonry-item:hover {
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.15);
}

.masonry-img-wrapper {
  position: relative;
  width: 100%;
  overflow: hidden;
  /* Visual placeholder background during loading */
  background: linear-gradient(110deg, var(--bg-tertiary) 8%, var(--border-color) 18%, var(--bg-tertiary) 33%);
  background-size: 200% 100%;
  animation: shine 1.5s infinite linear;
}

.masonry-img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1);
}

.masonry-item:hover .masonry-img {
  transform: scale(1.05);
}

/* Card Overlay */
.card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,0.3) 0%, rgba(0,0,0,0.1) 40%, rgba(0,0,0,0.85) 100%);
  opacity: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.2rem;
  transition: opacity 0.3s ease;
  z-index: 2;
}

.masonry-item:hover .card-overlay {
  opacity: 1;
}

.overlay-top {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  transform: translateY(-10px);
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.masonry-item:hover .overlay-top {
  transform: translateY(0);
}

.overlay-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.9);
  color: #111827;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 10px rgba(0,0,0,0.25);
  font-size: 1rem;
}

.overlay-btn:hover {
  transform: scale(1.1);
  background: white;
}

.overlay-btn.like-btn {
  color: var(--danger-color);
}

.overlay-btn.like-btn.liked {
  background: var(--danger-color);
  color: white;
}

.overlay-btn.download-btn {
  color: var(--accent-color);
}

.overlay-btn.download-btn:hover {
  background: var(--accent-color);
  color: white;
}

.overlay-bottom {
  transform: translateY(10px);
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.masonry-item:hover .overlay-bottom {
  transform: translateY(0);
}

.overlay-title {
  color: white;
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-shadow: 0 2px 4px rgba(0,0,0,0.4);
}

.overlay-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.75rem;
  font-weight: 600;
}

.overlay-category {
  background: rgba(255, 255, 255, 0.15);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  backdrop-filter: blur(4px);
}

/* Lightbox Modal */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(8, 8, 10, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.lightbox.active {
  display: flex;
  opacity: 1;
}

.lightbox-content {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  width: 100%;
  max-width: 1100px;
  height: 85vh;
  display: flex;
  overflow: hidden;
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.8);
  position: relative;
  transform: scale(0.95);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.lightbox.active .lightbox-content {
  transform: scale(1);
}

.lightbox-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  transition: all 0.2s ease;
}

.lightbox-close:hover {
  background: var(--border-color);
  transform: scale(1.05);
}

.lightbox-media {
  flex: 1.3;
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 1rem;
}

.lightbox-img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.lightbox-details {
  flex: 0.7;
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-left: 1px solid var(--border-color);
}

.detail-header {
  margin-bottom: 2rem;
}

.detail-category {
  color: var(--accent-color);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 0.5rem;
  display: inline-block;
}

.detail-title {
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}

.info-card {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 0.8rem 1rem;
}

.info-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 0.25rem;
}

.info-value {
  font-size: 0.95rem;
  font-weight: 700;
}

.detail-actions {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.action-btn {
  width: 100%;
  padding: 1rem;
  border-radius: 14px;
  border: none;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.action-btn.primary-btn {
  background: var(--accent-color);
  color: white;
  box-shadow: 0 6px 20px rgba(var(--accent-rgb), 0.3);
}

.action-btn.primary-btn:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(var(--accent-rgb), 0.4);
}

.action-btn.secondary-btn {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

.action-btn.secondary-btn:hover {
  background: var(--border-color);
  transform: translateY(-2px);
}

.action-btn.secondary-btn.liked {
  background: rgba(239, 68, 68, 0.1);
  border-color: rgba(239, 68, 68, 0.4);
  color: var(--danger-color);
}

.action-btn.secondary-btn.liked:hover {
  background: rgba(239, 68, 68, 0.15);
}

/* Loader & States */
.loader-container {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 3rem 0;
  width: 100%;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-color);
  border-top-color: var(--accent-color);
  border-radius: 50%;
  animation: spin 0.8s infinite linear;
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 5rem 2rem;
  width: 100%;
}

.empty-icon {
  font-size: 3rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  opacity: 0.5;
}

.empty-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.empty-desc {
  color: var(--text-secondary);
  max-width: 400px;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  z-index: 2000;
  pointer-events: none;
}

.toast {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  color: var(--text-primary);
  padding: 0.8rem 1.5rem;
  border-radius: 12px;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 600;
  font-size: 0.9rem;
  transform: translateY(20px);
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  pointer-events: auto;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.toast.success i {
  color: var(--success-color);
}

.toast.info i {
  color: var(--accent-color);
}

/* Animations */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

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

@keyframes shine {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* Responsive Breakpoints */
@media (max-width: 1200px) {
  .masonry-grid {
    columns: 4 250px;
  }
}

@media (max-width: 900px) {
  .masonry-grid {
    columns: 3 220px;
  }
  header {
    padding: 1rem;
  }
  .lightbox-content {
    flex-direction: column;
    height: 90vh;
  }
  .lightbox-media {
    flex: 1;
  }
  .lightbox-details {
    flex: 1;
    padding: 1.5rem;
    border-left: none;
    border-top: 1px solid var(--border-color);
  }
  .detail-title {
    font-size: 1.4rem;
    margin-bottom: 1rem;
  }
  .info-grid {
    gap: 0.75rem;
    margin-bottom: 1.25rem;
  }
  .detail-header {
    margin-bottom: 1rem;
  }
}

@media (max-width: 600px) {
  .masonry-grid {
    columns: 2 160px;
    column-gap: 0.75rem;
  }
  .masonry-item {
    margin-bottom: 0.75rem;
    border-radius: 12px;
  }
  .card-overlay {
    padding: 0.75rem;
  }
  .overlay-btn {
    width: 32px;
    height: 32px;
    font-size: 0.85rem;
  }
  .overlay-title {
    font-size: 0.8rem;
  }
  .overlay-meta {
    font-size: 0.65rem;
  }
  header {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
  }
  .header-actions {
    justify-content: space-between;
  }
  main {
    padding: 1rem;
  }
  .filter-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
  .filter-pills {
    width: 100%;
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 0.5rem;
    -webkit-overflow-scrolling: touch;
  }
  .pill {
    flex-shrink: 0;
  }
  .lightbox-content {
    height: 95vh;
  }
  .toast-container {
    bottom: 1rem;
    right: 1rem;
    left: 1rem;
  }
  .toast {
    font-size: 0.85rem;
    justify-content: center;
  }
}

/* Splash Loading Screen */
.splash-screen {
  position: fixed;
  inset: 0;
  background: #0a0a0c;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  opacity: 1;
  transition: opacity 0.6s cubic-bezier(0.25, 1, 0.5, 1), visibility 0.6s;
}

.splash-screen.fade-out {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.splash-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  animation: pulse 2s infinite ease-in-out;
}

.splash-logo i {
  font-size: 3.5rem;
  color: var(--accent-color);
  text-shadow: 0 0 25px rgba(var(--accent-rgb), 0.5);
}

.splash-title {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, #ffffff 40%, var(--accent-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.splash-loader-bar {
  width: 200px;
  height: 4px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  overflow: hidden;
  position: relative;
}

.splash-loader-progress {
  width: 0%;
  height: 100%;
  background: var(--accent-color);
  box-shadow: 0 0 10px var(--accent-color);
  border-radius: 10px;
  transition: width 0.4s ease;
}

/* GIF Badge */
.gif-badge {
  position: absolute;
  top: 0.8rem;
  left: 0.8rem;
  background: rgba(0, 0, 0, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(4px);
  color: #fff;
  font-weight: 800;
  font-size: 0.7rem;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  z-index: 3;
  letter-spacing: 0.5px;
  pointer-events: none;
}

/* Floating Action Button (Surprise Me) */
.surprise-btn {
  background: linear-gradient(135deg, var(--accent-color), #4f46e5);
  color: white !important;
  box-shadow: 0 4px 15px rgba(var(--accent-rgb), 0.4);
}

.surprise-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(var(--accent-rgb), 0.5);
  background: linear-gradient(135deg, var(--accent-hover), #3730a3);
}

/* Branded Footer */
footer {
  width: 100%;
  padding: 2.5rem 2rem;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  text-align: center;
  color: var(--text-secondary);
  margin-top: auto;
  font-size: 0.9rem;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.footer-logo i {
  color: var(--accent-color);
}

.footer-credits a {
  color: var(--accent-color);
  text-decoration: none;
  font-weight: 700;
  transition: color 0.2s ease;
}

.footer-credits a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

/* Lightbox Editor UI */
.editor-toggle-container {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.8rem;
}

.editor-panel {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.25rem;
  margin-bottom: 1.5rem;
  display: none; /* Toggle via JS */
  flex-direction: column;
  gap: 1.2rem;
  animation: slideDown 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.editor-panel.active {
  display: flex;
}

.editor-section-title {
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}

.aspect-ratio-selector {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.4rem;
}

.ratio-btn {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.4rem;
  border-radius: 8px;
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
}

.ratio-btn:hover {
  color: var(--text-primary);
  border-color: var(--text-secondary);
}

.ratio-btn.active {
  background: var(--accent-color);
  border-color: var(--accent-color);
  color: white;
}

.slider-control {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.slider-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  font-weight: 600;
}

.slider-input {
  width: 100%;
  -webkit-appearance: none;
  height: 6px;
  border-radius: 5px;
  background: var(--bg-secondary);
  outline: none;
  transition: background 0.3s;
}

.slider-input::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent-color);
  cursor: pointer;
  box-shadow: 0 0 5px rgba(var(--accent-rgb), 0.5);
  transition: transform 0.1s;
}

.slider-input::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

/* Canvas Preview Layout overrides */
.canvas-preview-active .lightbox-img {
  display: none;
}

.lightbox-canvas-container {
  display: none;
  max-width: 100%;
  max-height: 100%;
  position: relative;
}

.canvas-preview-active .lightbox-canvas-container {
  display: flex;
  align-items: center;
  justify-content: center;
}

#editor-canvas {
  max-width: 100%;
  max-height: 80vh;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 10px 35px rgba(0,0,0,0.6);
}

/* Crop Guide Indicator */
.crop-guide {
  position: absolute;
  border: 2px dashed var(--accent-color);
  pointer-events: none;
  box-shadow: 0 0 0 9999px rgba(0,0,0,0.6);
  z-index: 5;
  display: none;
}

.canvas-preview-active.cropping .crop-guide {
  display: block;
}

/* Boards/Collections Modal & Filter */
.board-badge {
  background: rgba(var(--accent-rgb), 0.15);
  color: var(--accent-color);
  border: 1px solid rgba(var(--accent-rgb), 0.3);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
}

.board-select-container {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  margin-top: 1rem;
}

.board-select {
  flex: 1;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.6rem;
  border-radius: 10px;
  outline: none;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
}

.board-add-btn {
  background: var(--accent-color);
  color: white;
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}

.board-add-btn:hover {
  background: var(--accent-hover);
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.9; }
  50% { transform: scale(1.05); opacity: 1; }
}

@keyframes slideDown {
  from { transform: translateY(-10px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* Grid Density column options */
.masonry-grid.grid-sm {
  columns: 7 150px !important;
}

.masonry-grid.grid-md {
  columns: 5 240px !important;
}

.masonry-grid.grid-lg {
  columns: 3 380px !important;
}

/* Sort & Density Selectors UI styling */
.density-selector {
  display: flex;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  overflow: hidden;
  padding: 0.15rem;
}

.density-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.4rem 0.8rem;
  border-radius: 7px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  transition: all 0.2s ease;
}

.density-btn:hover {
  color: var(--text-primary);
}

.density-btn.active {
  background: var(--accent-color);
  color: white;
  box-shadow: 0 2px 8px rgba(var(--accent-rgb), 0.25);
}

.sort-select {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.5rem 1rem;
  border-radius: 10px;
  outline: none;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.sort-select:focus {
  border-color: var(--accent-color);
}

.stats-actions-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}

.layout-controls-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Slideshow Fullscreen Overlay */
.slideshow-overlay {
  position: fixed;
  inset: 0;
  background: #060608;
  z-index: 3000;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.5s ease;
}

.slideshow-overlay.active {
  display: flex;
  opacity: 1;
}

.slideshow-img-container {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  position: relative;
  overflow: hidden;
  padding: 1rem;
}

.slideshow-img {
  max-width: 95%;
  max-height: 90vh;
  object-fit: contain;
  border-radius: 12px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.8);
  opacity: 0;
  transform: scale(0.98);
  transition: opacity 0.6s cubic-bezier(0.25, 1, 0.5, 1), transform 0.6s cubic-bezier(0.25, 1, 0.5, 1);
}

.slideshow-img.active {
  opacity: 1;
  transform: scale(1);
}

.slideshow-controls {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(24, 24, 28, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 50px;
  padding: 0.5rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  z-index: 10;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  transition: opacity 0.3s ease;
}

.slideshow-overlay:hover .slideshow-controls {
  opacity: 1;
}

/* Auto-hide controls when mouse is idle */
.slideshow-overlay.idle .slideshow-controls {
  opacity: 0;
  pointer-events: none;
}

.slideshow-btn {
  background: transparent;
  border: none;
  color: #fff;
  font-size: 1.3rem;
  cursor: pointer;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.slideshow-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--accent-color);
  transform: scale(1.1);
}

.slideshow-btn.close-btn {
  background: rgba(239, 68, 68, 0.15);
  color: var(--danger-color);
}

.slideshow-btn.close-btn:hover {
  background: var(--danger-color);
  color: white;
}

.slideshow-progress-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 4px;
  background: var(--accent-color);
  width: 0%;
  z-index: 15;
}

/* Checkbox Toggle styling for Blurred Fit */
.checkbox-control {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  user-select: none;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 0.6rem 0.8rem;
  border-radius: 8px;
  transition: all 0.2s ease;
}

.checkbox-control:hover {
  border-color: var(--accent-color);
}

.checkbox-control input {
  width: 16px;
  height: 16px;
  accent-color: var(--accent-color);
  cursor: pointer;
}

.checkbox-control input:focus {
  outline: none;
}

/* Lightbox Slideshow trigger option */
.lightbox-slideshow-btn {
  background: rgba(var(--accent-rgb), 0.1) !important;
  color: var(--accent-color) !important;
  border: 1px solid rgba(var(--accent-rgb), 0.2) !important;
}

.lightbox-slideshow-btn:hover {
  background: var(--accent-color) !important;
  color: white !important;
}

/* Adjustments for responsive grid resizing on phone */
@media (max-width: 600px) {
  .stats-actions-row {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
  }
  .layout-controls-right {
    justify-content: space-between;
  }
}