/**
 * Luxe Wedding Gallery Styles
 * Version 2.5.1 - Enhanced Responsive Slider
 * Modern, responsive, performance-focused CSS
 */

/* =============================================
   CSS CUSTOM PROPERTIES
   Central theme configuration for easy customization
   ============================================= */
:root {
  /* Brand Colors */
  --color-primary: #d4af37;
  --color-primary-dark: #c19d2e;
  --color-primary-light: #e0bb47;
  
  /* Neutral Colors */
  --color-text: #2c2c2c;
  --color-text-light: #666666;
  --color-text-lighter: #999999;
  --color-bg: #fdfbf7;
  --color-bg-secondary: #f5ebe0;
  --color-white: #ffffff;
  --color-black: #000000;
  --color-border: #e8e8e8;
  
  /* Status Colors */
  --color-error: #c9302c;
  --color-success: #4caf50;
  --color-warning: #ff9800;
  
  /* Spacing System */
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 40px;
  --spacing-xl: 60px;
  --spacing-xxl: 80px;
  
  /* Typography */
  --font-serif: 'Cormorant Garamond', serif;
  --font-sans: 'Montserrat', sans-serif;
  --font-size-base: 16px;
  --line-height-base: 1.6;
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  --transition-curve: cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.15);
  
  /* Border Radius */
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 8px;
  --radius-xl: 16px;
  --radius-full: 9999px;
  
  /* Z-Index Scale */
  --z-base: 1;
  --z-dropdown: 10;
  --z-sticky: 100;
  --z-overlay: 1000;
  --z-modal: 2000;
  --z-tooltip: 3000;
}

/* Dark Theme Variables */
.dark-theme {
  --color-text: #e8e8e8;
  --color-text-light: #b0b0b0;
  --color-text-lighter: #808080;
  --color-bg: #1a1a1a;
  --color-bg-secondary: #2a2a2a;
  --color-border: #333333;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.6);
}

/* =============================================
   RESET & BASE STYLES
   Modern CSS reset for consistency
   ============================================= */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: var(--line-height-base);
  min-height: 100vh;
  transition: background-color var(--transition-normal), 
              color var(--transition-normal);
}

/* Typography Base */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 300;
  line-height: 1.2;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary);
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* Focus Styles for Accessibility */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Selection Styles */
::selection {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* =============================================
   HEADER & NAVIGATION
   Sticky header with theme toggle
   ============================================= */
header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background-color: var(--color-white);
  box-shadow: var(--shadow-sm);
  transition: background-color var(--transition-normal),
              box-shadow var(--transition-normal);
  /* Ensure header stays on top */
  width: 100%;
}

.dark-theme header {
  background-color: var(--color-bg-secondary);
}

/* Sticky header backdrop blur for modern effect */
@supports (backdrop-filter: blur(10px)) or (-webkit-backdrop-filter: blur(10px)) {
  header {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
  }
  
  .dark-theme header {
    background-color: rgba(42, 42, 42, 0.95);
  }
}

.header-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--spacing-md) var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 300;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-text);
  transition: color var(--transition-normal);
}

.logo:hover {
  color: var(--color-primary);
}

/* Theme Toggle Button */
.header-right {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.theme-toggle {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 10px 20px;
  background-color: var(--color-bg-secondary);
  border-radius: var(--radius-full);
  transition: all var(--transition-normal);
}

.theme-toggle:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
}

.theme-label {
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* =============================================
   ALBUM NAVIGATION - STICKY BELOW HEADER
   Horizontal scrolling navigation bar
   ============================================= */
.album-nav {
  position: sticky;
  top: 0; /* Will be adjusted by header height via JavaScript or calc */
  z-index: calc(var(--z-sticky) - 1);
  background-color: var(--color-bg-secondary);
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--color-border);
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--color-primary) transparent;
  /* Backdrop blur effect */
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  transition: background-color var(--transition-normal);
}

.dark-theme .album-nav {
  background-color: rgba(42, 42, 42, 0.95);
}

.album-nav::-webkit-scrollbar {
  height: 6px;
}

.album-nav::-webkit-scrollbar-track {
  background: transparent;
}

.album-nav::-webkit-scrollbar-thumb {
  background-color: var(--color-primary);
  border-radius: var(--radius-sm);
}

.album-links {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  display: flex;
  gap: var(--spacing-md);
  white-space: nowrap;
}

.album-links a {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-text-light);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.album-links a:hover {
  background-color: rgba(212, 175, 55, 0.1);
  color: var(--color-primary);
}

.album-links a.active {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* =============================================
   MAIN CONTENT
   ============================================= */
main {
  min-height: 60vh;
}

main.no-slider {
  padding-top: var(--spacing-lg);
}

/* =============================================
   HERO SLIDER - FULL PAGE WITH EFFECTS
   Full viewport height slider with animations
   ============================================= */
.hero-slider {
  position: relative;
  /* Full viewport height on all devices */
  height: 100vh;
  min-height: 100vh;
  overflow: hidden;
  background-color: var(--color-bg-secondary);
}

/* Scroll indicator at bottom of slider */
.hero-slider::after {
  content: '';
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 30px;
  height: 50px;
  border: 2px solid rgba(255, 255, 255, 0.6);
  border-radius: 25px;
  z-index: 3;
  animation: scrollIndicator 2s ease-in-out infinite;
}

@keyframes scrollIndicator {
  0% {
    opacity: 0;
    transform: translateX(-50%) translateY(-10px);
  }
  50% {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
  100% {
    opacity: 0;
    transform: translateX(-50%) translateY(10px);
  }
}

/* Hide scroll indicator on small screens */
@media (max-height: 700px) {
  .hero-slider::after {
    display: none;
  }
}

.swiper {
  width: 100%;
  height: 100%;
}

.swiper-slide {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  /* Add transition for slide changes */
  opacity: 0.3;
  transition: opacity 0.8s ease;
}

/* Active slide fully visible */
.swiper-slide-active {
  opacity: 1;
}

/* Next and previous slides slightly visible for preview */
.swiper-slide-next,
.swiper-slide-prev {
  opacity: 0.5;
}

.swiper-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  /* Enhanced Ken Burns effect */
  transform: scale(1);
  transition: transform 12s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: transform;
}

/* Enhanced Ken Burns Effect - More dramatic */
.swiper-slide-active img {
  animation: kenBurnsZoom 15s ease-out forwards;
}

@keyframes kenBurnsZoom {
  0% { 
    transform: scale(1) translateX(0) translateY(0);
  }
  100% { 
    transform: scale(1.15) translateX(-2%) translateY(-2%);
  }
}

/* Alternate Ken Burns direction for variety */
.swiper-slide:nth-child(even).swiper-slide-active img {
  animation: kenBurnsPan 15s ease-out forwards;
}

@keyframes kenBurnsPan {
  0% { 
    transform: scale(1) translateX(0);
  }
  100% { 
    transform: scale(1.15) translateX(2%);
  }
}

/* Slide Overlay - Enhanced gradient */
.swiper-slide-overlay {
  position: absolute;
  inset: 0;
  /* Dramatic gradient overlay for better text readability */
  background: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.15) 0%,
    rgba(0, 0, 0, 0.25) 30%,
    rgba(0, 0, 0, 0.45) 60%,
    rgba(0, 0, 0, 0.7) 100%
  );
  z-index: 1;
  transition: opacity var(--transition-slow);
  /* Animated overlay effect */
  animation: overlayPulse 3s ease-in-out infinite alternate;
}

@keyframes overlayPulse {
  0% { opacity: 0.95; }
  100% { opacity: 1; }
}

/* Slide Content - Centered for full page */
.swiper-slide-content {
  position: absolute;
  /* Centered on the screen */
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 90%;
  max-width: 1000px;
  z-index: 2;
  color: var(--color-white);
  text-align: center;
  padding: 0 clamp(20px, 4vw, 40px);
}

.slide-title {
  font-family: var(--font-serif);
  /* Responsive but larger for full screen */
  font-size: clamp(2.5rem, 6vw + 0.5rem, 5rem);
  font-weight: 300;
  letter-spacing: clamp(3px, 0.8vw, 10px);
  text-transform: uppercase;
  margin-bottom: clamp(16px, 3vh, 32px);
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.8);
  opacity: 0;
  transform: translateY(50px) scale(0.95);
  line-height: 1.1;
  /* Dramatic entrance animation */
  animation: titleEntrance 1.2s cubic-bezier(0.34, 1.56, 0.64, 1) 0.3s forwards;
}

@keyframes titleEntrance {
  0% {
    opacity: 0;
    transform: translateY(50px) scale(0.95);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.slide-date {
  font-size: clamp(1.1rem, 2.5vw + 0.3rem, 1.8rem);
  letter-spacing: clamp(2px, 0.4vw, 5px);
  font-weight: 300;
  margin-bottom: clamp(20px, 3vh, 40px);
  text-shadow: 0 3px 15px rgba(0, 0, 0, 0.8);
  opacity: 0;
  transform: translateY(40px);
  /* Staggered animation */
  animation: slideUpFade 1s cubic-bezier(0.34, 1.56, 0.64, 1) 0.6s forwards;
}

.slide-message {
  font-size: clamp(1rem, 1.8vw + 0.3rem, 1.4rem);
  line-height: 1.8;
  font-weight: 300;
  letter-spacing: clamp(0.5px, 0.15vw, 1.5px);
  margin-top: clamp(20px, 3vh, 40px);
  padding: clamp(20px, 3vh, 40px) clamp(24px, 4vw, 60px);
  background: rgba(0, 0, 0, 0.4);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(15px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  opacity: 0;
  transform: translateY(30px);
  /* Later animation for message */
  animation: slideUpFade 1s cubic-bezier(0.34, 1.56, 0.64, 1) 0.9s forwards;
}

@keyframes slideUpFade {
  0% {
    opacity: 0;
    transform: translateY(40px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Swiper Navigation - Enhanced for fullscreen */
.swiper-button-next,
.swiper-button-prev {
  color: var(--color-white);
  width: clamp(50px, 8vw, 70px);
  height: clamp(50px, 8vw, 70px);
  background: rgba(0, 0, 0, 0.5);
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-radius: var(--radius-full);
  backdrop-filter: blur(15px);
  transition: all var(--transition-normal);
  /* Add subtle shadow */
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.swiper-button-next:hover,
.swiper-button-prev:hover {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  border-color: var(--color-primary-light);
  transform: scale(1.15);
  box-shadow: 0 6px 30px rgba(212, 175, 55, 0.6);
}

.swiper-button-next::after,
.swiper-button-prev::after {
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 700;
}

/* Add pulse animation to navigation buttons */
.swiper-button-next,
.swiper-button-prev {
  animation: navButtonPulse 2s ease-in-out infinite;
}

@keyframes navButtonPulse {
  0%, 100% { 
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  }
  50% { 
    box-shadow: 0 4px 30px rgba(255, 255, 255, 0.3);
  }
}

/* Stop animation on hover */
.swiper-button-next:hover,
.swiper-button-prev:hover {
  animation: none;
}

/* Swiper Pagination - Enhanced for fullscreen */
.swiper-pagination {
  bottom: clamp(25px, 4vh, 40px) !important;
  z-index: 10;
}

.swiper-pagination-bullet {
  width: clamp(10px, 1.5vw, 14px);
  height: clamp(10px, 1.5vw, 14px);
  background: var(--color-white);
  opacity: 0.5;
  transition: all var(--transition-normal);
  border: 2px solid transparent;
  margin: 0 8px !important;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.swiper-pagination-bullet:hover {
  opacity: 0.8;
  transform: scale(1.3);
  border-color: var(--color-primary-light);
}

.swiper-pagination-bullet-active {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  opacity: 1;
  width: clamp(32px, 6vw, 50px);
  border-radius: var(--radius-lg);
  border-color: var(--color-white);
  box-shadow: 0 4px 15px rgba(212, 175, 55, 0.6);
  /* Add glow effect */
  animation: bulletGlow 2s ease-in-out infinite;
}

@keyframes bulletGlow {
  0%, 100% { 
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.6);
  }
  50% { 
    box-shadow: 0 4px 25px rgba(212, 175, 55, 0.9);
  }
}

/* =============================================
   GALLERY - MOSAIC LAYOUT
   Dynamic Pinterest-style grid
   ============================================= */
.gallery-container {
  max-width: 1600px;
  margin: 0 auto;
  padding: var(--spacing-lg);
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  grid-auto-rows: 200px;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  grid-auto-flow: dense;
}

/* Mosaic Patterns - Creates varied layouts */
.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: all var(--transition-normal);
  background-color: var(--color-bg-secondary);
}

/* Pattern Variations */
.gallery-item:nth-child(11n+1) { grid-row: span 2; }
.gallery-item:nth-child(13n+2) { grid-column: span 2; grid-row: span 2; }
.gallery-item:nth-child(17n+3) { grid-row: span 2; }
.gallery-item:nth-child(7n+4) { grid-column: span 2; }
.gallery-item:nth-child(19n+5) { grid-row: span 2; }
.gallery-item:nth-child(23n+6) { grid-column: span 2; grid-row: span 1; }

/* Hover Effects */
.gallery-item:hover {
  transform: translateY(-5px) scale(1.02);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-dropdown);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
  will-change: transform, opacity;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.gallery-item:hover img {
  transform: scale(1.08);
}

/* Gradient Overlay on Hover */
.gallery-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    transparent 50%,
    rgba(0, 0, 0, 0.3) 100%
  );
  opacity: 0;
  transition: opacity var(--transition-normal);
  pointer-events: none;
}

.gallery-item:hover::after {
  opacity: 1;
}

/* Video Play Icon */
.play-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 60px;
  height: 60px;
  background: rgba(0, 0, 0, 0.7);
  border-radius: var(--radius-full);
  pointer-events: none;
  transition: all var(--transition-normal);
  backdrop-filter: blur(10px);
  z-index: var(--z-base);
}

.play-icon::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 55%;
  transform: translate(-50%, -50%);
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 12px 0 12px 20px;
  border-color: transparent transparent transparent var(--color-white);
}

.gallery-item:hover .play-icon {
  background-color: var(--color-primary);
  transform: translate(-50%, -50%) scale(1.1);
}

/* =============================================
   LOADING INDICATOR
   Infinite scroll loading state
   ============================================= */
.loading {
  text-align: center;
  padding: var(--spacing-xl);
  color: var(--color-text-light);
  font-size: 1.1rem;
}

.loading::after {
  content: '';
  display: inline-block;
  width: 20px;
  height: 20px;
  margin-left: var(--spacing-sm);
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: var(--radius-full);
  animation: spin 0.8s linear infinite;
}

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

/* =============================================
   ERROR MESSAGES
   ============================================= */
.error-message {
  max-width: 600px;
  margin: var(--spacing-xl) auto;
  padding: var(--spacing-lg);
  text-align: center;
  color: var(--color-error);
  background-color: rgba(201, 48, 44, 0.05);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--color-error);
}

.error-message p {
  font-size: 1.1rem;
  line-height: 1.6;
}

/* =============================================
   FOOTER - STICKY AT BOTTOM
   ============================================= */
footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  width: 100%;
  background-color: var(--color-bg-secondary);
  padding: var(--spacing-md) var(--spacing-lg);
  text-align: center;
  border-top: 1px solid var(--color-border);
  z-index: var(--z-dropdown);
  /* Backdrop blur for modern effect */
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
  transition: background-color var(--transition-normal);
}

.dark-theme footer {
  background-color: rgba(42, 42, 42, 0.95);
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.2);
}

footer p {
  color: var(--color-text-light);
  font-size: 0.9rem;
  margin-bottom: var(--spacing-xs);
}

.footer-brand {
  display: inline-block;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--color-primary);
  transition: color var(--transition-fast);
}

.footer-brand:hover {
  color: var(--color-primary-light);
}

/* Add padding to main content to account for fixed footer */
main {
  padding-bottom: 100px; /* Space for footer */
}

/* Adjust gallery container bottom padding */
.gallery-container {
  padding-bottom: calc(var(--spacing-lg) + 80px); /* Extra space for footer */
}

/* =============================================
   GLIGHTBOX CUSTOM THEME
   Lightbox overlay customization
   ============================================= */
.glightbox-container {
  background-color: rgba(0, 0, 0, 0.95) !important;
}

.glightbox-download-btn {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 999999;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 28px;
  background: linear-gradient(
    135deg,
    var(--color-primary) 0%,
    var(--color-primary-dark) 100%
  );
  color: var(--color-white) !important;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-full);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  transition: all var(--transition-normal);
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(10px);
  will-change: transform;
  min-width: 160px;
}

.glightbox-download-btn:hover:not(:disabled) {
  background: linear-gradient(
    135deg,
    var(--color-primary-light) 0%,
    var(--color-primary) 100%
  );
  transform: translateX(-50%) translateY(-3px);
  box-shadow: 0 6px 30px rgba(212, 175, 55, 0.6);
}

.glightbox-download-btn:active:not(:disabled) {
  transform: translateX(-50%) translateY(-1px);
}

.glightbox-download-btn:disabled {
  cursor: not-allowed;
  opacity: 0.8;
}

.glightbox-download-btn.success {
  background: linear-gradient(135deg, var(--color-success) 0%, #45a049 100%) !important;
}

.glightbox-download-btn.error {
  background: linear-gradient(135deg, var(--color-error) 0%, #d32f2f 100%) !important;
}

.glightbox-download-btn svg:not(.spinner) {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.glightbox-download-btn .btn-text {
  white-space: nowrap;
}

.glightbox-download-btn .spinner {
  width: 20px;
  height: 20px;
  animation: spin 0.8s linear infinite;
}

/* Lightbox Controls */
.gbtn,
.gclose {
  background: rgba(0, 0, 0, 0.5) !important;
  color: var(--color-primary) !important;
  transition: all var(--transition-fast) !important;
  backdrop-filter: blur(10px);
}

.gbtn:hover,
.gclose:hover {
  background-color: var(--color-primary) !important;
  color: var(--color-white) !important;
}

.gslide-counter {
  color: var(--color-primary-light) !important;
  font-family: var(--font-sans) !important;
}

.gvideo-wrapper {
  width: 100%;
  max-width: 1920px;
  margin: 0 auto;
}

.gvideo-wrapper video {
  width: 100%;
  height: auto;
  max-height: 90vh;
  background-color: var(--color-black);
}

.gloader {
  border: 4px solid var(--color-border) !important;
  border-top-color: var(--color-primary) !important;
}

.gslide-description,
.gslide-title,
.gslide-desc {
  display: none !important;
}

/* =============================================
   RESPONSIVE DESIGN
   Mobile-first approach with breakpoints
   ============================================= */

/* Large Tablets & Small Desktops (1025px - 1280px) */
@media (max-width: 1280px) {
  .hero-slider {
    height: clamp(350px, 65vh, 700px);
  }
}

/* Tablets (768px - 1024px) */
@media (max-width: 1024px) {
  :root {
    --spacing-lg: 30px;
    --spacing-xl: 50px;
  }
  
  .header-content {
    padding: var(--spacing-sm) var(--spacing-md);
  }
  
  .logo {
    font-size: 1.5rem;
  }
  
  .gallery {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    grid-auto-rows: 180px;
  }
  
  .gallery-item:nth-child(13n+2) {
    grid-column: span 1;
    grid-row: span 2;
  }
  
  .gallery-item:nth-child(7n+4) {
    grid-column: span 2;
    grid-row: span 1;
  }
  
  /* Keep fullscreen slider on tablets */
  .hero-slider {
    height: 100vh;
    min-height: 100vh;
  }
}

/* Mobile Landscape & Small Tablets (481px - 768px) */
@media (max-width: 768px) {
  :root {
    --spacing-lg: 20px;
    --spacing-xl: 30px;
  }
  
  .header-content {
    padding: var(--spacing-sm);
  }
  
  .logo {
    font-size: 1.3rem;
    letter-spacing: 2px;
  }
  
  .theme-toggle {
    padding: 8px 16px;
  }
  
  .theme-label {
    display: none;
  }
  
  .album-links {
    padding: 0 var(--spacing-sm);
    gap: var(--spacing-sm);
  }
  
  .album-links a {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.8rem;
  }
  
  .gallery {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    grid-auto-rows: 140px;
    gap: var(--spacing-xs);
  }
  
  .gallery-item:nth-child(11n+1),
  .gallery-item:nth-child(17n+3),
  .gallery-item:nth-child(19n+5) {
    grid-row: span 2;
  }
  
  .gallery-item:nth-child(13n+2),
  .gallery-item:nth-child(7n+4),
  .gallery-item:nth-child(23n+6) {
    grid-column: span 2;
    grid-row: span 1;
  }
  
  .gallery-container {
    padding: var(--spacing-md) var(--spacing-sm);
    padding-bottom: calc(var(--spacing-md) + 100px); /* Space for sticky footer */
  }
  
  /* Keep fullscreen slider on mobile */
  .hero-slider {
    height: 100vh;
    min-height: 100vh;
  }
  
  /* Adjust navigation for mobile */
  .swiper-button-next,
  .swiper-button-prev {
    width: 45px;
    height: 45px;
  }
  
  .swiper-button-next::after,
  .swiper-button-prev::after {
    font-size: 18px;
  }
  
  .play-icon {
    width: 50px;
    height: 50px;
  }
  
  .play-icon::before {
    border-width: 10px 0 10px 16px;
  }
  
  /* Sticky footer adjustments for mobile */
  footer {
    padding: var(--spacing-sm) var(--spacing-md);
  }
  
  footer p {
    font-size: 0.8rem;
    margin-bottom: 4px;
  }
  
  .footer-brand {
    font-size: 0.85rem;
    letter-spacing: 1.5px;
  }
  
  /* Adjust main padding for mobile */
  main {
    padding-bottom: 90px;
  }
  
  .glightbox-download-btn {
    bottom: 20px;
    padding: 10px 24px;
    font-size: 0.85rem;
    gap: 8px;
    min-width: 140px;
  }
  
  .glightbox-download-btn svg:not(.spinner),
  .glightbox-download-btn .spinner {
    width: 18px;
    height: 18px;
  }
}

/* Mobile Portrait (< 480px) */
@media (max-width: 480px) {
  .gallery {
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: 120px;
    gap: 6px;
  }
  
  .gallery-item:nth-child(3n+1) {
    grid-row: span 2;
  }
  
  .gallery-item:nth-child(5n+2) {
    grid-column: span 2;
  }
  
  .gallery-item:nth-child(13n+2),
  .gallery-item:nth-child(7n+4),
  .gallery-item:nth-child(23n+6) {
    grid-column: span 1;
  }
  
  .logo {
    font-size: 1.1rem;
  }
  
  /* Fullscreen slider on small mobile */
  .hero-slider {
    height: 100vh;
    min-height: 100vh;
  }
  
  /* Compact footer on small mobile */
  footer {
    padding: 12px var(--spacing-sm);
  }
  
  footer p {
    font-size: 0.75rem;
  }
  
  .footer-brand {
    font-size: 0.8rem;
    letter-spacing: 1px;
  }
  
  /* Adjust main and gallery padding */
  main {
    padding-bottom: 80px;
  }
  
  .gallery-container {
    padding-bottom: calc(var(--spacing-sm) + 90px);
  }
  
  .glightbox-download-btn {
    bottom: 15px;
    padding: 8px 20px;
    font-size: 0.8rem;
    min-width: 120px;
  }
}

/* Extra Small Devices (< 375px) */
@media (max-width: 375px) {
  /* Keep fullscreen */
  .hero-slider {
    height: 100vh;
    min-height: 100vh;
  }
  
  /* Make navigation buttons smaller on tiny screens */
  .swiper-button-next,
  .swiper-button-prev {
    width: 40px;
    height: 40px;
  }
  
  .swiper-button-next::after,
  .swiper-button-prev::after {
    font-size: 16px;
  }
  
  .swiper-pagination-bullet {
    width: 8px;
    height: 8px;
    margin: 0 5px !important;
  }
  
  .swiper-pagination-bullet-active {
    width: 24px;
  }
}

/* Landscape Orientation Adjustments - Keep fullscreen */
@media (max-height: 600px) and (orientation: landscape) {
  .hero-slider {
    height: 100vh;
    min-height: 100vh;
  }
  
  /* Adjust content for landscape */
  .swiper-slide-content {
    top: 50%;
    transform: translate(-50%, -50%);
    width: 95%;
  }
  
  .slide-title {
    font-size: clamp(1.8rem, 5vh + 0.5rem, 3rem);
    margin-bottom: 12px;
  }
  
  .slide-date {
    font-size: clamp(0.9rem, 3vh, 1.2rem);
    margin-bottom: 12px;
  }
  
  .slide-message {
    font-size: clamp(0.85rem, 2.5vh, 1rem);
    padding: clamp(12px, 2vh, 20px) clamp(16px, 3vw, 30px);
    margin-top: 12px;
  }
  
  .swiper-pagination {
    bottom: 15px !important;
  }
  
  .swiper-button-next,
  .swiper-button-prev {
    width: 45px;
    height: 45px;
  }
}

/* =============================================
   ACCESSIBILITY
   Enhanced for screen readers and keyboard navigation
   ============================================= */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .swiper-slide img {
    animation: none !important;
  }
  
  @keyframes kenBurns {
    0%, 100% { transform: scale(1); }
  }
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-to-content {
  position: absolute;
  top: -40px;
  left: 0;
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-sm);
  z-index: var(--z-tooltip);
  transition: top var(--transition-fast);
}

.skip-to-content:focus {
  top: 0;
}

/* =============================================
   PRINT STYLES
   Optimized for printing
   ============================================= */
@media print {
  header,
  footer,
  .album-nav,
  .theme-toggle,
  .swiper-button-next,
  .swiper-button-prev,
  .swiper-pagination {
    display: none !important;
  }
  
  .gallery {
    display: block;
  }
  
  .gallery-item {
    page-break-inside: avoid;
    margin-bottom: 20px;
  }
  
  body {
    background: white;
    color: black;
  }
}

/* =============================================
   UTILITY CLASSES
   Helpful utilities for common patterns
   ============================================= */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.no-scroll {
  overflow: hidden;
}

.is-loading {
  cursor: wait;
  pointer-events: none;
  opacity: 0.6;
}

/* =============================================
   PERFORMANCE OPTIMIZATIONS
   GPU acceleration and rendering hints
   ============================================= */
.gallery-item img,
.swiper-slide img,
.theme-toggle,
.gbtn,
.gclose {
  transform: translateZ(0);
  will-change: transform;
}

@supports (scroll-behavior: smooth) {
  html {
    scroll-behavior: smooth;
  }
}

/* End of Styles */