:root {
  --primary: #800040; /* Royal Maroon as the default primary */
  --primary-hover: #a30052;
  --bg: #f8f9fa;
  --text: #202124;
  --text-muted: #5f6368;
  --border: #e8eaed;
  --card-bg: #ffffff;
  --sidebar-w: 160px;
  --header-h: 64px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  overflow: hidden; /* Prevent body scroll, everything scrolls inside containers */
}

/* Scrollbar Styling */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background-color: rgba(0,0,0,0.15);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background-color: rgba(0,0,0,0.3);
}

/* Buttons */
button {
  font-family: inherit;
  cursor: pointer;
  transition: all 0.2s ease;
}

.primary-btn {
  background-color: var(--primary);
  color: white;
  border: none;
  border-radius: 8px;
  padding: 8px 16px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.primary-btn:hover {
  background-color: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(128, 0, 64, 0.2);
}

/* Header */
.header {
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
}

.logo span {
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--primary);
  letter-spacing: -0.5px;
}

@media (max-width: 600px) {
  .logo span {
    display: none;
  }
}

.nav-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.nav-btn:hover {
  background: rgba(0,0,0,0.05);
  color: var(--primary);
}

@media (min-width: 901px) {
  #menu-btn {
    display: none;
  }
}

/* Search Bar */
.search-bar {
  display: flex;
  align-items: center;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 6px 16px;
  width: 100%;
  max-width: 400px;
  transition: all 0.2s;
}
.search-bar:focus-within {
  background: #fff;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(128, 0, 64, 0.1);
}
.search-bar i {
  color: var(--text-muted);
  width: 18px;
  height: 18px;
  margin-right: 8px;
}
.search-bar input {
  border: none;
  background: transparent;
  outline: none;
  width: 100%;
  font-size: 0.95rem;
  color: var(--text);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Main Layout */
.main-layout {
  display: flex;
  padding-top: var(--header-h);
  height: 100vh;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-w);
  background: var(--card-bg);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  height: 100%;
  transition: transform 0.3s ease;
  z-index: 950;
  position: relative;
}

.year-list {
  list-style: none;
  padding: 0 12px;
}

.year-item, .category-item {
  padding: 8px 12px;
  margin: 2px 0;
  border-radius: 6px;
  cursor: pointer;
  color: var(--text);
  font-weight: 500;
  font-size: 0.9rem;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 8px;
}
.year-item:hover, .category-item:hover {
  background: rgba(128, 0, 64, 0.05);
  color: var(--primary);
}
.year-item.active, .category-item.active {
  background: var(--primary);
  color: white;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(128, 0, 64, 0.3);
}
.skeleton-year {
  height: 40px;
  margin: 4px 0;
  border-radius: 8px;
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: loading 1.5s infinite;
}
@keyframes loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Content Area */
.content-area {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
  scroll-behavior: smooth;
}

/* Daily Section */
.daily-section {
  margin-bottom: 32px;
}
.daily-header h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.daily-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}
.daily-card {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  transition: transform 0.2s ease;
}
.daily-card:hover {
  transform: scale(1.02);
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}
.daily-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}
.year-badge {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.7);
  color: white;
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  backdrop-filter: blur(4px);
}

/* Monthly Accordion */
.month-accordion {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  margin-bottom: 20px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0,0,0,0.02);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.month-accordion:hover {
  border-color: rgba(128, 0, 64, 0.2);
  box-shadow: 0 8px 20px rgba(128, 0, 64, 0.04);
}
.month-header {
  padding: 18px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  background: rgba(0,0,0,0.005);
  transition: background 0.2s, padding-left 0.2s;
}
.month-header:hover {
  background: rgba(128, 0, 64, 0.02);
  padding-left: 28px;
}
.month-header h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0;
}
.month-icon {
  transition: transform 0.3s ease;
}
.month-accordion.open .month-icon {
  transform: rotate(180deg);
}
.month-body {
  display: none;
  padding: 24px;
  border-top: 1px solid var(--border);
}
.month-accordion.open .month-body {
  display: block;
}

/* UNIFORM PHOTO GRID */
.photo-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

@media (max-width: 1400px) {
  .photo-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 900px) {
  .photo-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .photo-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }
}

.photo-card {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  cursor: zoom-in;
  aspect-ratio: 4 / 3;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.3s ease;
}

.photo-img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  border-radius: 12px;
  background: rgba(0,0,0,0.03);
  transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.photo-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 24px rgba(0,0,0,0.12);
}

.photo-card:hover .photo-img {
  transform: scale(1.06);
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 64px 24px;
  color: var(--text-muted);
}
.empty-state i {
  width: 48px;
  height: 48px;
  opacity: 0.5;
  margin-bottom: 16px;
}
.empty-state h2 {
  font-size: 1.2rem;
  color: var(--text);
  margin-bottom: 8px;
}

/* Filters Bar */
.filters-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.filter-tag {
  background: var(--card-bg);
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: 16px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text);
  box-shadow: 0 2px 4px rgba(0,0,0,0.02);
}

/* Lightbox Modal (JEM-Style Split) */
.lightbox-modal {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 2000;
}
.lightbox-backdrop {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.9);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.lightbox-container {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  display: flex;
}
.lightbox-image-area {
  flex: 1;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.lightbox-img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: transform 0.1s ease-out;
}
.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255,255,255,0.1);
  border: none;
  color: white;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s;
  z-index: 10;
}
.lightbox-nav:hover {
  background: rgba(255,255,255,0.3);
}
.btn-prev { left: 24px; }
.btn-next { right: 24px; }

.lightbox-details-panel {
  width: 360px;
  background: var(--card-bg);
  display: flex;
  flex-direction: column;
  z-index: 10;
  box-shadow: -4px 0 24px rgba(0,0,0,0.2);
}

.details-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.details-header h2 {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0;
}
.actions-row {
  display: flex;
  gap: 8px;
}
.action-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.action-btn:hover {
  background: rgba(0,0,0,0.05);
  color: var(--primary);
}

/* Lightbox Top Actions Overlay - Mobile Only */
.lightbox-top-actions {
  display: none !important;
}
.lightbox-top-actions .action-btn {
  position: relative !important;
  background: rgba(0, 0, 0, 0.6) !important;
  border: 1px solid rgba(255, 255, 255, 0.15) !important;
  color: #f8f9fa !important;
  width: 42px !important;
  height: 42px !important;
  border-radius: 50% !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.35) !important;
  transition: all 0.2s cubic-bezier(0.2, 0.8, 0.2, 1) !important;
}
.lightbox-top-actions .action-btn:hover {
  background: var(--primary) !important;
  border-color: var(--primary) !important;
  color: white !important;
  transform: scale(1.1) !important;
}
.lightbox-top-actions .action-btn:active {
  transform: scale(0.95) !important;
}

.details-content {
  padding: 24px;
  overflow-y: auto;
  flex: 1;
}

.meta-row {
  display: flex;
  align-items: center;
  color: var(--text);
  margin-bottom: 12px;
  font-size: 0.95rem;
}
.meta-row i {
  width: 18px;
  height: 18px;
  color: var(--text-muted);
  margin-right: 12px;
}
.meta-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 20px 0;
}

.meta-section {
  margin-bottom: 24px;
}
.meta-section h3 {
  font-size: 0.85rem;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.meta-section h3 i {
  width: 14px;
  height: 14px;
}
.meta-text {
  font-size: 0.95rem;
  color: var(--text);
}
.meta-pill {
  background: rgba(128,0,64,0.1);
  color: var(--primary);
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 0.85rem;
  font-weight: 500;
  display: inline-block;
  margin: 2px;
}

.meta-input {
  width: 100%;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: inherit;
  font-size: 0.95rem;
  margin-top: 8px;
  background: var(--bg);
  color: var(--text);
}
.meta-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(128,0,64,0.1);
}

.sidebar-backdrop {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.5);
  z-index: 900;
  backdrop-filter: blur(4px);
}

.mobile-close-btn { display: none; }
.desktop-close-btn { display: flex; }

/* Utilities */
.admin-only {
  display: none !important;
}

/* Modals */
.modal, .modal-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 3000;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
}
.modal-content {
  background: var(--card-bg);
  border-radius: 12px;
  max-width: 500px;
  width: 95%;
  position: relative;
  box-shadow: 0 10px 40px rgba(0,0,0,0.3);
  overflow: hidden;
}

/* Responsive Adjustments — Tablet */
@media (max-width: 900px) {
  .header {
    height: auto;
    flex-wrap: wrap;
    padding: 10px 12px;
    gap: 8px;
  }
  .search-bar {
    order: 3;
    width: 100%;
    max-width: 100%;
    margin-top: 2px;
    padding: 5px 12px;
  }
  .main-layout {
    padding-top: 100px;
  }

  .sidebar {
    position: fixed;
    top: 100px;
    left: 0;
    bottom: 0;
    z-index: 1000;
    transform: translateX(-100%);
  }
  body.sidebar-open .sidebar {
    transform: translateX(0);
  }
  body.sidebar-open .sidebar-backdrop {
    display: block;
  }
  
  /* Lightbox Mobile Adjustments */
  .lightbox-container {
    flex-direction: column;
  }
  .lightbox-details-panel {
    width: 100%;
    position: absolute;
    bottom: 0;
    height: 70vh;
    transform: translateY(100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 20px 20px 0 0;
  }
  .lightbox-details-panel.open {
    transform: translateY(0);
  }
  .desktop-close-btn { display: none; }
  .mobile-close-btn { 
    display: flex; 
    position: absolute; 
    top: 16px; 
    right: 16px; 
    background: rgba(0,0,0,0.5); 
    color: white; 
    z-index: 20; 
  }
  .lightbox-nav {
    display: none !important;
  }
  
  .lightbox-top-actions {
    position: absolute !important;
    top: 20px !important;
    right: 20px !important;
    left: auto !important;
    display: flex !important;
    flex-direction: row !important;
    gap: 10px !important;
    z-index: 100 !important;
    direction: ltr !important;
  }
  
  .lightbox-container:has(.lightbox-details-panel.open) .lightbox-top-actions {
    display: none !important;
  }
}

/* Responsive Adjustments — Phone */
@media (max-width: 600px) {
  /* Compact header: single tight row */
  .header {
    padding: 8px 10px;
    gap: 6px;
  }
  .search-bar {
    padding: 4px 10px;
    border-radius: 16px;
    font-size: 0.85rem;
  }
  .search-bar input {
    font-size: 0.85rem;
  }
  .main-layout {
    padding-top: 92px;
  }
  .sidebar {
    top: 92px;
  }

  /* Smaller nav buttons on mobile */
  .nav-btn {
    width: 34px;
    height: 34px;
  }
  .nav-btn svg, .nav-btn i {
    width: 18px;
    height: 18px;
  }
  .header-actions {
    gap: 4px;
  }


  /* Compact content area */
  .content-area {
    padding: 10px !important;
  }

  /* Tighter filter bar */
  .filters-bar {
    margin-bottom: 12px;
    gap: 6px;
  }
  .filter-tag {
    padding: 4px 10px;
    font-size: 0.8rem;
  }

  /* Tighter month accordions */
  .month-accordion {
    border-radius: 10px;
    margin-bottom: 10px;
  }
  .month-header {
    padding: 12px 14px;
    font-size: 0.95rem;
  }
  .month-header:hover {
    padding-left: 14px; /* don't shift on mobile */
  }

  /* Tighter day accordions */
  .day-accordion {
    border-radius: 8px;
    margin-bottom: 8px;
  }
  .day-header {
    padding: 10px 14px;
    font-size: 0.85rem;
  }
  .day-accordion.open .photo-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 6px !important;
    padding: 8px !important;
  }

  /* Compact photo cards */
  .photo-card {
    border-radius: 8px;
    aspect-ratio: 1 / 1; /* Square thumbnails on mobile = neat grid */
  }
  .photo-img {
    border-radius: 8px;
  }
  .photo-card:hover {
    transform: none; /* disable hover lift on touch */
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  }
  .photo-card:hover .photo-img {
    transform: none; /* disable hover zoom on touch */
  }

  /* Always show filename on mobile (no hover) */
  .photo-meta {
    opacity: 1;
    transform: translateY(0);
    padding: 6px 8px;
    font-size: 0.65rem;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
  }

  /* Compact daily grid */
  .daily-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }
  .daily-card img {
    height: 140px;
  }
  .daily-header h2 {
    font-size: 1.15rem;
    margin-bottom: 10px;
  }

  /* Compact empty state */
  .empty-state {
    padding: 32px 16px;
  }
  .empty-state h2 {
    font-size: 1rem;
  }

  /* Compact search results */
  .search-results-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 6px;
  }

  /* Photo grid */
  .photo-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 6px;
  }

  /* Lightbox details on phone */
  .details-content {
    padding: 16px;
  }
  .details-header {
    padding: 14px 16px;
  }
}

/* Day Accordion (sub-sections within months) */
.day-accordion {
  margin-bottom: 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  background: var(--card-bg);
  box-shadow: 0 2px 6px rgba(0,0,0,0.01);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.day-accordion:hover {
  border-color: rgba(0, 0, 0, 0.15);
  box-shadow: 0 4px 12px rgba(0,0,0,0.03);
}
.day-header {
  padding: 14px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text);
  background: rgba(0,0,0,0.005);
  transition: background 0.2s;
}
.day-header:hover {
  background: rgba(0,0,0,0.02);
}
.day-accordion .photo-grid {
  display: none;
  padding: 20px;
  border-top: 1px solid var(--border);
}
.day-accordion.open .photo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

/* Photo filename overlay — visible on hover */
.photo-meta {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 12px 10px;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
  color: #fff;
  font-size: 0.75rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.3s ease, transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
  pointer-events: none;
}

.photo-card:hover .photo-meta {
  opacity: 1;
  transform: translateY(0);
}

/* Search results grid (used outside accordions) */
.search-results-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
@media (max-width: 1400px) {
  .search-results-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 900px) {
  .search-results-grid { grid-template-columns: repeat(2, 1fr); }
}
/* (mobile overrides consolidated above in the @media max-width: 600px block) */

/* Spinner animation (used by loading indicators) */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}