/* Galleries Custom Stylesheet - Colin Wilkinson */
:root {
  --bg-primary: #0a0b0d;
  --bg-secondary: #121418;
  --bg-card: rgba(22, 25, 32, 0.7);
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  
  --accent: #f97316; /* Warm orange highlight */
  --accent-hover: #ea580c;
  --accent-rgb: 249, 115, 22;
  
  --border-light: rgba(255, 255, 255, 0.08);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.4);
  
  --font-family: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: #27272a;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #3f3f46;
}

/* Login Gate Card */
#auth-gate {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: radial-gradient(circle at center, #1c1d24 0%, var(--bg-primary) 100%);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s ease;
}

#auth-gate.active {
  opacity: 1;
  pointer-events: all;
}

.login-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  max-width: 420px;
  width: 90%;
  text-align: center;
  box-shadow: var(--shadow-lg);
  transform: translateY(20px);
  animation: slideUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes slideUp {
  to {
    transform: translateY(0);
  }
}

.camera-logo {
  font-size: 3.5rem;
  color: var(--accent);
  margin-bottom: 24px;
  filter: drop-shadow(0 0 15px rgba(var(--accent-rgb), 0.4));
}

.login-header h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-bottom: 8px;
}

.login-header p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 32px;
  line-height: 1.5;
}

.signin-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  background: var(--text-primary);
  color: var(--bg-primary);
  border: none;
  border-radius: var(--radius-sm);
  padding: 14px 24px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.signin-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(255, 255, 255, 0.15);
}

.btn-icon {
  margin-right: 12px;
  font-size: 1.1rem;
}

.error-msg {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #ef4444;
  padding: 12px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  margin-bottom: 24px;
  line-height: 1.4;
}

.login-footer {
  margin-top: 36px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* App Header & Menu */
.app-header {
  border-bottom: 1px solid var(--border-light);
  background-color: rgba(10, 11, 13, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 1.15rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-decoration: none;
  color: inherit;
}

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

.user-menu {
  display: flex;
  align-items: center;
  gap: 16px;
}

#user-display-name {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

#btn-signout {
  background: transparent;
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-smooth);
}

#btn-signout:hover {
  border-color: #ef4444;
  color: #ef4444;
}

/* App Views Layout */
.app-view {
  display: none;
  max-width: 1400px;
  margin: 0 auto;
  padding: 48px 24px;
}

.app-view.active {
  display: block;
}

.view-header {
  margin-bottom: 40px;
}

.view-header h1 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 8px;
}

.view-header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.back-btn {
  background: transparent;
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 24px;
  transition: var(--transition-smooth);
}

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

/* Album Grid Elements */
.grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 32px;
}

.album-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  transition: var(--transition-smooth);
}

.album-card:hover {
  transform: translateY(-8px);
  border-color: rgba(var(--accent-rgb), 0.3);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
}

.card-cover-wrapper {
  position: relative;
  width: 100%;
  padding-bottom: 66.67%; /* 3:2 Aspect Ratio */
  background: #18181b;
  overflow: hidden;
}

.card-cover {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.album-card:hover .card-cover {
  transform: scale(1.05);
}

.card-count {
  position: absolute;
  bottom: 12px;
  right: 12px;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 0.85rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 6px;
}

.card-info {
  padding: 20px;
}

.card-info h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-year {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Photo Gallery Elements */
.photo-grid {
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.photo-item {
  position: relative;
  width: 100%;
  padding-bottom: 75%; /* 4:3 Aspect Ratio Grid */
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: #18181b;
  cursor: pointer;
}

.photo-thumb {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.photo-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.photo-item:hover .photo-overlay {
  opacity: 1;
}

.photo-item:hover .photo-thumb {
  transform: scale(1.03);
}

.photo-overlay i {
  color: #fff;
  font-size: 1.5rem;
}

/* Spinner Loader */
.loader-centered {
  grid-column: 1 / -1;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 200px;
}

.loader {
  border: 3px solid rgba(255, 255, 255, 0.05);
  border-top: 3px solid var(--accent);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Native Dialog Lightbox */
dialog#lightbox-dialog {
  display: none;
  background: transparent;
  border: none;
  width: 100%;
  height: 100%;
  max-width: 100vw;
  max-height: 100vh;
  outline: none;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
}

dialog#lightbox-dialog::backdrop {
  background-color: rgba(6, 7, 8, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* Dialog polyfill support: flex layouts are only visible when open */
dialog#lightbox-dialog[open] {
  display: flex;
}

.lightbox-wrapper {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100%;
  justify-content: space-between;
  padding: 24px;
}

/* Controls */
.lightbox-ctrl {
  background: rgba(22, 25, 32, 0.5);
  backdrop-filter: blur(4px);
  border: 1px solid var(--border-light);
  color: var(--text-primary);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: var(--transition-smooth);
  z-index: 10;
}

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

.close-btn {
  position: absolute;
  top: 24px;
  right: 24px;
}

/* Navigation area */
.lightbox-nav-area {
  flex-grow: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  height: 100%;
}

.lightbox-content {
  flex-grow: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  height: calc(100vh - 160px);
  position: relative;
  overflow: hidden;
}

#lightbox-img {
  max-width: 90vw;
  max-height: 75vh;
  object-fit: contain;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.8);
  opacity: 0;
  transition: opacity 0.3s ease;
  user-select: none;
  -webkit-user-drag: none;
}

#lightbox-loader {
  position: absolute;
  top: 50%;
  left: 50%;
  margin-top: -20px;
  margin-left: -20px;
}

.nav-btn {
  position: relative;
}

/* Footer layout */
.lightbox-footer {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  border-top: 1px solid var(--border-light);
  padding-top: 16px;
  z-index: 5;
}

.lightbox-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.exif-data {
  font-size: 0.85rem;
  color: var(--text-secondary);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.exif-data span {
  display: flex;
  align-items: center;
  gap: 4px;
}

.copyright {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.lightbox-counter {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-secondary);
  padding: 6px 12px;
  border-radius: 4px;
}

/* Tablet & Mobile responsive tweaks */
@media (max-width: 768px) {
  .view-header h1 {
    font-size: 2rem;
  }
  
  .app-view {
    padding: 32px 16px;
  }

  .login-card {
    padding: 36px 24px;
  }
  
  .lightbox-wrapper {
    padding: 16px;
  }

  .lightbox-content {
    height: calc(100vh - 200px);
  }
  
  #lightbox-img {
    max-width: 100vw;
    max-height: 60vh;
  }
  
  /* Hide side buttons in mobile lightbox to let user use touch swipe easily */
  .nav-btn {
    display: none;
  }
  
  .close-btn {
    top: 16px;
    right: 16px;
  }
  
  .lightbox-footer {
    flex-direction: column-reverse;
    align-items: flex-start;
    gap: 16px;
  }
  
  .lightbox-counter {
    align-self: flex-end;
  }
}