/* ==========================================================================
   GALERÍA - DISEÑO ULTRA PREMIUM APPLE/SAMSUNG STYLE
   Algodón Todo Evento
   ========================================================================== */

/* --------------------------------------------------------------------------
   VARIABLES
   -------------------------------------------------------------------------- */
:root {
  /* Colors - Premium Palette */
  --color-primary: #FE7700;
  --color-primary-light: #E19100;
  --color-primary-dark: #6B1B00;
  --color-secondary: #E19100;
  --color-success: #30D158;
  --color-warning: #FF9F0A;
  
  /* Gradients */
  --gradient-primary: #FE7700;
  --gradient-success: #AA8700;
  --gradient-overlay: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.85) 100%);
  
  /* Neutrals */
  --white: #FFFFFF;
  --gray-25: #FCFCFD;
  --gray-50: #F9F9FB;
  --gray-100: #F5F5F7;
  --gray-200: #E8E8ED;
  --gray-300: #D2D2D7;
  --gray-400: #AEAEB2;
  --gray-500: #8E8E93;
  --gray-600: #636366;
  --gray-700: #48484A;
  --gray-800: #3A3A3C;
  --gray-900: #1C1C1E;
  
  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.04), 0 2px 4px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.06), 0 4px 8px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 16px 32px rgba(0, 0, 0, 0.08), 0 8px 16px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 24px 48px rgba(0, 0, 0, 0.12), 0 12px 24px rgba(0, 0, 0, 0.06);
  
  /* Spacing */
  --space-2: 0.25rem;
  --space-3: 0.375rem;
  --space-4: 0.5rem;
  --space-6: 0.75rem;
  --space-8: 1rem;
  --space-10: 1.25rem;
  --space-12: 1.5rem;
  --space-16: 2rem;
  --space-20: 2.5rem;
  --space-24: 3rem;
  --space-32: 4rem;
  --space-40: 5rem;
  --space-48: 6rem;
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'SF Pro Display', sans-serif;
  --font-display: 'Poppins', -apple-system, 'SF Pro Display', sans-serif;
  
  /* Font Sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;
  --text-7xl: 4.5rem;
  
  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 20px;
  --radius-3xl: 24px;
  --radius-full: 9999px;
  
  /* Transitions */
  --duration-fast: 150ms;
  --duration-base: 300ms;
  --duration-slow: 500ms;
  
  --ease-out: cubic-bezier(0, 0, 0.2, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* --------------------------------------------------------------------------
   BASE
   -------------------------------------------------------------------------- */
.gallery-main {
  max-width: 1600px;
  margin: 0 auto;
  padding: 0;
  font-family: var(--font-sans);
  color: var(--gray-900);
  background: var(--gray-25);
  position: relative;
  overflow-x: hidden;
}

/* Background Mesh */
.gallery-main::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 100vh;
  background: 
    radial-gradient(at 27% 37%, hsla(215, 98%, 61%, 0.08) 0px, transparent 50%),
    radial-gradient(at 97% 21%, hsla(125, 98%, 72%, 0.08) 0px, transparent 50%);
  pointer-events: none;
  z-index: -1;
}

/* --------------------------------------------------------------------------
   HERO SECTION
   -------------------------------------------------------------------------- */
.gallery-hero {
  position: relative;
  padding: clamp(var(--space-40), 12vw, var(--space-48)) var(--space-8);
  text-align: center;
  background: #F5EDE8;
  overflow: hidden;
}

/* Orbs desactivados - paleta sólida */
.gallery-hero::before,
.gallery-hero::after {
  display: none;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(40px, -40px) scale(1.15); }
  66% { transform: translate(-30px, 30px) scale(0.9); }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 1000px;
  margin: 0 auto;
  animation: fadeInUp 1s var(--ease-out) both;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-6);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(107, 27, 0, 0.2);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-8);
  box-shadow: 
    var(--shadow-md),
    0 0 0 1px rgba(255, 255, 255, 0.5) inset;
}

.hero-badge i {
  font-size: 1rem;
}

.gallery-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(var(--text-4xl), 8vw, var(--text-7xl));
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: #6B1B00;
  margin: 0 0 var(--space-8) 0;
}

.hero-description {
  font-size: clamp(var(--text-lg), 2.5vw, var(--text-2xl));
  line-height: 1.6;
  color: var(--gray-600);
  font-weight: 400;
  max-width: 750px;
  margin: 0 auto var(--space-16);
}

/* Stats Row */
.stats-row {
  display: flex;
  justify-content: center;
  gap: clamp(var(--space-12), 8vw, var(--space-24));
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-6);
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-2xl);
  border: 1px solid rgba(107, 27, 0, 0.1);
  transition: all var(--duration-base) var(--ease-spring);
  min-width: 160px;
}

.stat-item:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow-lg);
}

.stat-icon {
  width: 48px;
  height: 48px;
  background: var(--gradient-primary);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: var(--text-xl);
}

.stat-number {
  font-size: clamp(var(--text-3xl), 5vw, var(--text-5xl));
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  font-family: var(--font-display);
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--gray-600);
  font-weight: 500;
  text-align: center;
}

/* --------------------------------------------------------------------------
   FILTER SECTION
   -------------------------------------------------------------------------- */
.filter-section {
  position: sticky;
  top: clamp(60px, 8vh, 75px);
  z-index: 1020;
  padding: var(--space-8) var(--space-8) var(--space-12);
  margin-bottom: 2.5rem;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border-bottom: 1px solid var(--gray-200);
  box-shadow: 
    0 1px 3px rgba(0, 0, 0, 0.04),
    0 0 0 1px rgba(255, 255, 255, 0.5) inset;
}

.filter-container {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
  max-width: 1200px;
  margin: 0 auto;
}

.filter-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-8);
  background: var(--white);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-full);
  color: var(--gray-700);
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--duration-base) var(--ease-spring);
  box-shadow: var(--shadow-xs);
}

.filter-btn:hover:not(.active) {
  background: var(--gray-50);
  border-color: var(--gray-300);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.filter-btn.active {
  background: #6B1B00;
  border-color: #6B1B00;
  color: var(--white);
  transform: translateY(-2px);
  box-shadow:
    var(--shadow-lg),
    0 0 0 4px rgba(107, 27, 0, 0.15);
}

.filter-btn i {
  font-size: var(--text-base);
}

/* --------------------------------------------------------------------------
   GALLERY SECTION
   -------------------------------------------------------------------------- */
.gallery-section {
  padding: 0 var(--space-8) var(--space-32);
  max-width: 1600px;
  margin: 0 auto;
}

/* --------------------------------------------------------------------------
   GALLERY GRID
   -------------------------------------------------------------------------- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  animation: none;
}

/* --------------------------------------------------------------------------
   GALLERY ITEM
   -------------------------------------------------------------------------- */
.gallery-item {
  position: relative;
  background: var(--white);
  border-radius: 12px;
  border: 1px solid var(--gray-200);
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(107, 27, 0, 0.08);
  transition: all var(--duration-slow) var(--ease-out);
  opacity: 1;
  height: 100%;
}

.gallery-item.show {
  animation: none;
}

.gallery-item:hover {
  transform: translateY(-12px) scale(1.02);
  box-shadow: var(--shadow-2xl);
  border-color: var(--gray-300);
}

.gallery-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--duration-base) var(--ease-out);
  z-index: 10;
}

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

.image-wrapper {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--gray-100);
}

.image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}

.gallery-item:hover .image-wrapper img {
  transform: scale(1.12);
}

.image-overlay {
  position: absolute;
  inset: 0;
  background: var(--gradient-overlay);
  opacity: 0;
  transition: opacity var(--duration-base) var(--ease-out);
  display: flex;
  align-items: center;
  justify-content: center;
}

.gallery-item:hover .image-overlay {
  opacity: 1;
}

.zoom-btn {
  width: 64px;
  height: 64px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border: none;
  border-radius: 50%;
  color: var(--gray-900);
  font-size: var(--text-2xl);
  cursor: pointer;
  transition: all var(--duration-base) var(--ease-spring);
  box-shadow: var(--shadow-xl);
  opacity: 0;
  transform: scale(0.7);
}

.gallery-item:hover .zoom-btn {
  opacity: 1;
  transform: scale(1);
}

.zoom-btn:hover {
  background: var(--color-primary);
  color: var(--white);
  transform: scale(1.15) rotate(5deg);
  box-shadow: var(--shadow-2xl);
}

/* --------------------------------------------------------------------------
   LOAD MORE BUTTON
   -------------------------------------------------------------------------- */
.load-more-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  margin-top: var(--space-20);
  padding: var(--space-8);
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-3xl);
  border: 1px solid var(--gray-200);
}

.btn-load-more {
  display: inline-flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-12);
  background: var(--gray-900);
  color: var(--white);
  border: none;
  border-radius: var(--radius-full);
  font-size: var(--text-lg);
  font-weight: 700;
  cursor: pointer;
  transition: all var(--duration-base) var(--ease-spring);
  box-shadow: var(--shadow-xl);
  position: relative;
  overflow: hidden;
}

.btn-load-more::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--duration-base) var(--ease-out);
}

.btn-load-more:hover::before {
  opacity: 1;
}

.btn-load-more:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-2xl);
}

.btn-load-more.loading {
  pointer-events: none;
  opacity: 0.7;
}

.btn-load-more.loading .btn-arrow i {
  animation: bounce 0.6s ease-in-out infinite;
}

.btn-icon,
.btn-text,
.btn-arrow {
  position: relative;
  z-index: 1;
}

.btn-icon {
  font-size: var(--text-xl);
}

.btn-arrow i {
  transition: transform var(--duration-base) var(--ease-spring);
}

.btn-load-more:hover .btn-arrow i {
  transform: translateY(4px);
}

.load-more-info {
  font-size: var(--text-sm);
  color: var(--gray-600);
  font-weight: 500;
  margin: 0;
}

/* --------------------------------------------------------------------------
   LIGHTBOX
   -------------------------------------------------------------------------- */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.96);
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--duration-base) var(--ease-out);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

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

.lightbox-content {
  max-width: 90vw;
  max-height: 90vh;
  position: relative;
}

.lightbox-content img {
  max-width: 100%;
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-2xl);
  animation: zoomIn 0.4s var(--ease-spring);
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
  position: absolute;
  width: 56px;
  height: 56px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border: 2px solid rgba(107, 27, 0, 0.2);
  border-radius: 50%;
  color: var(--gray-900);
  font-size: var(--text-xl);
  cursor: pointer;
  transition: all var(--duration-base) var(--ease-spring);
  box-shadow: var(--shadow-xl);
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-close {
  top: var(--space-8);
  right: var(--space-8);
}

.lightbox-prev {
  left: var(--space-8);
  top: 50%;
  transform: translateY(-50%);
}

.lightbox-next {
  right: var(--space-8);
  top: 50%;
  transform: translateY(-50%);
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
  background: var(--white);
  border-color: var(--color-primary);
  transform: translateY(-50%) scale(1.1);
  box-shadow: var(--shadow-2xl);
}

.lightbox-close:hover {
  transform: scale(1.1) rotate(90deg);
}

.lightbox-counter {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-3) var(--space-8);
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(20px);
  border-radius: var(--radius-full);
  color: var(--white);
  font-size: var(--text-sm);
  font-weight: 700;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* --------------------------------------------------------------------------
   ANIMATIONS
   -------------------------------------------------------------------------- */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInScale {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes zoomIn {
  from {
    opacity: 0;
    transform: scale(0.85);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

/* --------------------------------------------------------------------------
   RESPONSIVE - LARGE DESKTOP (1440px+)
   -------------------------------------------------------------------------- */
@media (min-width: 1440px) {
  .gallery-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-10);
  }
}

/* --------------------------------------------------------------------------
   RESPONSIVE - DESKTOP (1024px - 1439px)
   -------------------------------------------------------------------------- */
@media (min-width: 1024px) and (max-width: 1439px) {
  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
  }
}

/* --------------------------------------------------------------------------
   RESPONSIVE - TABLET (768px - 1023px)
   -------------------------------------------------------------------------- */
@media (min-width: 768px) and (max-width: 1023px) {
  .gallery-hero {
    padding: var(--space-32) var(--space-6);
  }
  
  .stats-row {
    gap: var(--space-8);
  }
  
  .filter-section {
    padding: var(--space-6) var(--space-6);
  }
  
  .gallery-section {
    padding: 0 var(--space-6) var(--space-24);
  }
  
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
  }
}

/* --------------------------------------------------------------------------
   RESPONSIVE - MOBILE (< 768px) - SIEMPRE 2 COLUMNAS
   -------------------------------------------------------------------------- */
@media (max-width: 767px) {
  .gallery-hero {
    padding: var(--space-16) var(--space-4) var(--space-12);
  }
  
  .hero-badge {
    font-size: 0.625rem;
    padding: var(--space-2) var(--space-4);
  }
  
  .gallery-hero h1 {
    font-size: var(--text-3xl);
  }
  
  .hero-description {
    font-size: var(--text-base);
    margin-bottom: var(--space-12);
  }
  
  .stats-row {
    gap: var(--space-4);
  }
  
  .stat-item {
    min-width: 120px;
    padding: var(--space-4);
  }
  
  .stat-icon {
    width: 40px;
    height: 40px;
    font-size: var(--text-lg);
  }
  
  .stat-number {
    font-size: var(--text-2xl);
  }
  
  .stat-label {
    font-size: var(--text-xs);
  }
  
  .filter-section {
    padding: var(--space-3) var(--space-4);
    top: 0;
    position: sticky;
    margin-top: 0;
    margin-bottom: var(--space-8);
  }

  .filter-container {
    gap: var(--space-2);
  }

  .filter-btn {
    width: 44px;
    height: 44px;
    padding: 0;
    font-size: 0.8125rem;
  }

  .filter-btn span {
    display: none;
  }

  .gallery-section {
    padding: 0 var(--space-4) var(--space-20);
  }

  /* SIEMPRE 2 COLUMNAS EN MÓVILES */
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
  }
  
  .zoom-btn {
    width: 48px;
    height: 48px;
    font-size: var(--text-lg);
  }
  
  .load-more-container {
    margin-top: var(--space-12);
    padding: var(--space-6) var(--space-4);
  }
  
  .btn-load-more {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-base);
    gap: var(--space-3);
  }
  
  .btn-icon {
    font-size: var(--text-lg);
  }
  
  .lightbox-close,
  .lightbox-prev,
  .lightbox-next {
    width: 44px;
    height: 44px;
    font-size: var(--text-lg);
  }
  
  .lightbox-close {
    top: var(--space-4);
    right: var(--space-4);
  }
  
  .lightbox-prev {
    left: var(--space-3);
  }
  
  .lightbox-next {
    right: var(--space-3);
  }
}

/* --------------------------------------------------------------------------
   RESPONSIVE - MOBILE SMALL (< 480px)
   -------------------------------------------------------------------------- */
@media (max-width: 479px) {
  .gallery-hero h1 {
    font-size: var(--text-2xl);
  }
  
  .hero-description {
    font-size: var(--text-sm);
  }
  
  .stats-row {
    gap: var(--space-3);
  }
  
  .stat-item {
    min-width: 100px;
    padding: var(--space-3);
    gap: var(--space-2);
  }
  
  .gallery-grid {
    gap: var(--space-3);
  }
  
  .btn-load-more {
    font-size: var(--text-sm);
    padding: var(--space-3) var(--space-6);
  }
}

/* --------------------------------------------------------------------------
   ACCESSIBILITY
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* --------------------------------------------------------------------------
   PRINT
   -------------------------------------------------------------------------- */
@media print {
  .filter-section,
  .lightbox,
  .load-more-container {
    display: none;
  }
  
  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}