/* ==========================================================================
   GALERÍA - ESTILO MODERNO, MINIMALISTA Y TONOS NEUTROS
   ========================================================================== */

:root {
  /* Paleta de Colores Neutros y Elegantes */
  --bg-main: #090a0f;
  --bg-surface: #10121a;
  --bg-card: rgba(18, 20, 29, 0.7);
  --bg-card-hover: rgba(28, 32, 45, 0.85);
  --bg-glass: rgba(12, 14, 20, 0.85);

  /* Acentos Neutros / Grises */
  --accent-white: #ffffff;
  --accent-gray: #94a3b8;
  --glow-gray: rgba(255, 255, 255, 0.18);
  --glow-subtle: rgba(148, 163, 184, 0.2);

  /* Botón de Drive */
  --drive-green: #00d26a;
  --drive-green-glow: rgba(0, 210, 106, 0.35);

  /* Textos */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  /* Bordes y Sombras Grises */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.4);
  --border-glass: rgba(255, 255, 255, 0.12);
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.7);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.9);

  /* Transiciones */
  --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-spring: 0.45s cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Tipografías */
  --font-body: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Bordes */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
}

/* Reset y base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  color-scheme: dark;
}

body {
  background-color: var(--bg-main);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.5;
  overflow-x: hidden;
  min-height: 100vh;
}

/* Fondo ambiental sutil y neutro */
.bg-mesh {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
  background: 
    radial-gradient(circle at 50% 10%, rgba(255, 255, 255, 0.04) 0%, transparent 50%),
    radial-gradient(circle at 85% 85%, rgba(0, 210, 106, 0.05) 0%, transparent 40%),
    var(--bg-main);
}

.bg-pattern {
  position: fixed;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 24px 24px;
  z-index: -1;
  pointer-events: none;
}

/* ==========================================================================
   CABECERA MINIMALISTA
   ========================================================================== */

.main-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.85rem 1.5rem;
}

.header-container {
  max-width: 1440px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

/* Botones */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: var(--transition-fast);
  white-space: nowrap;
  user-select: none;
}

.btn-drive {
  background: linear-gradient(135deg, #00d26a, #059669);
  color: #ffffff;
  box-shadow: 0 4px 18px var(--drive-green-glow);
  border: 1px solid rgba(255, 255, 255, 0.25);
  font-weight: 700;
}

.btn-drive:hover {
  background: linear-gradient(135deg, #10b981, #047857);
  box-shadow: 0 6px 26px rgba(0, 210, 106, 0.5);
  transform: translateY(-2px);
}

.btn-primary {
  background: #ffffff;
  color: #090a0f;
  box-shadow: 0 4px 16px rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.3);
  font-weight: 700;
}

.btn-primary:hover {
  background: #f1f5f9;
  box-shadow: 0 6px 22px rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
}

.btn-glass {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(10px);
}

.btn-glass:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.25);
}

/* Selector de 3 Modos de Vista (Solo en Escritorio / Tablets) */
.view-mode-tabs {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.05);
  padding: 4px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
}

.view-tab {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 1.1rem;
  border-radius: var(--radius-full);
  font-size: 0.825rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: var(--transition-fast);
}

.view-tab:hover {
  color: var(--text-primary);
}

.view-tab.active {
  background: #ffffff;
  color: #090a0f;
  box-shadow: 0 2px 12px rgba(255, 255, 255, 0.25);
  font-weight: 700;
}

/* ==========================================================================
   VISTA 1: GRID DE FOTOS
   ========================================================================== */

.view-section {
  max-width: 1440px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

.photo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.photo-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition-smooth);
  cursor: pointer;
  aspect-ratio: 4 / 3;
}

.photo-card:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.8), 0 0 20px var(--glow-gray);
  border-color: rgba(255, 255, 255, 0.4);
  z-index: 10;
}

.photo-card-img-wrapper {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #10121a;
}

.photo-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Skeleton Loading */
.skeleton {
  background: linear-gradient(90deg, #121520 25%, #1c2233 50%, #121520 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
}

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

/* Botón de descarga en la tarjeta */
.card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(7, 8, 12, 0.4) 0%, transparent 60%);
  opacity: 0;
  display: flex;
  justify-content: flex-end;
  padding: 0.85rem;
  transition: opacity var(--transition-fast);
}

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

.card-download-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(14, 16, 23, 0.88);
  border: 1px solid var(--border-glass);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}

.card-download-btn:hover {
  background: var(--drive-green);
  border-color: var(--drive-green);
  color: #000;
  transform: scale(1.1);
  box-shadow: 0 0 14px var(--drive-green-glow);
}

/* ==========================================================================
   VISTA 2: 3D COVERFLOW / SHOWCASE (SOLO ESCRITORIO)
   ========================================================================== */

.coverflow-stage {
  perspective: 1200px;
  height: 480px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 2rem 0;
  user-select: none;
}

.coverflow-item {
  position: absolute;
  width: min(85vw, 440px);
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #121520;
  border: 2px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.9);
  transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1), opacity 0.5s ease;
  cursor: pointer;
  -webkit-box-reflect: below 10px linear-gradient(to bottom, transparent 65%, rgba(0, 0, 0, 0.35));
}

.coverflow-item.active {
  border-color: rgba(255, 255, 255, 0.8);
  box-shadow: 0 0 35px var(--glow-gray), 0 30px 70px rgba(0, 0, 0, 0.95);
  z-index: 50;
}

.coverflow-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.coverflow-nav-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 2rem;
}

.coverflow-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--bg-surface);
  border: 1px solid var(--border-glass);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-spring);
}

.coverflow-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.4);
  transform: scale(1.1);
  box-shadow: 0 0 16px var(--glow-gray);
}

/* ==========================================================================
   VISTA 3: MODO CINE (SOLO ESCRITORIO)
   ========================================================================== */

.cinema-display-card {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  max-height: 72vh;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #000;
  border: 1px solid var(--border-subtle);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.95);
  display: flex;
  align-items: center;
  justify-content: center;
}

.cinema-main-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: opacity 0.35s ease;
  z-index: 5;
}

.cinema-blur-bg {
  position: absolute;
  inset: -20px;
  background-size: cover;
  background-position: center;
  filter: blur(40px) brightness(0.35);
  z-index: 0;
}

.cinema-controls-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1.25rem 1.5rem;
  background: linear-gradient(to top, rgba(0,0,0,0.95), transparent);
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 10;
}

.cinema-counter-badge {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.08);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
  z-index: 10;
}

.cinema-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  z-index: 10;
}

/* ==========================================================================
   MODAL LIGHTBOX PRO
   ========================================================================== */

.lightbox-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(4, 5, 8, 0.96);
  backdrop-filter: blur(25px);
  -webkit-backdrop-filter: blur(25px);
  display: none;
  flex-direction: column;
  justify-content: space-between;
  opacity: 0;
  transition: opacity 0.3s ease;
}

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

.lightbox-header {
  padding: 0.85rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 20;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.7), transparent);
}

.lightbox-title-area {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.lightbox-counter {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: #ffffff;
  background: rgba(255, 255, 255, 0.1);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-glass);
}

.lightbox-tool-buttons {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.lightbox-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-glass);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
}

.lightbox-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.4);
  transform: scale(1.08);
}

.lightbox-btn.download-highlight:hover {
  background: var(--drive-green);
  border-color: var(--drive-green);
  color: #000;
}

.lightbox-content {
  position: relative;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  touch-action: none;
  padding: 1rem;
}

.lightbox-img-wrapper {
  position: relative;
  max-width: 90vw;
  max-height: 75vh;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.25s cubic-bezier(0.2, 0.8, 0.2, 1);
  transform-origin: center center;
}

.lightbox-img {
  max-width: 100%;
  max-height: 75vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.95);
  user-select: none;
  -webkit-user-drag: none;
}

.lightbox-nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: rgba(14, 16, 23, 0.8);
  border: 1px solid var(--border-glass);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 30;
  transition: var(--transition-fast);
  backdrop-filter: blur(10px);
}

.lightbox-nav-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-50%) scale(1.1);
  box-shadow: 0 0 18px var(--glow-gray);
}

.lightbox-nav-btn.prev { left: 1.5rem; }
.lightbox-nav-btn.next { right: 1.5rem; }

.lightbox-thumbnails {
  padding: 0.6rem 1.5rem 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  overflow-x: auto;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.85), transparent);
  scrollbar-width: thin;
  z-index: 20;
}

.thumb-item {
  width: 54px;
  height: 40px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 2px solid transparent;
  cursor: pointer;
  opacity: 0.45;
  transition: var(--transition-fast);
  flex-shrink: 0;
}

.thumb-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.thumb-item:hover {
  opacity: 0.8;
}

.thumb-item.active {
  opacity: 1;
  border-color: #ffffff;
  box-shadow: 0 0 10px var(--glow-gray);
  transform: scale(1.1);
}

/* ==========================================================================
   MODAL GOOGLE DRIVE
   ========================================================================== */

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 1100;
  background: rgba(4, 5, 8, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.modal-backdrop.active {
  display: flex;
  opacity: 1;
}

.modal-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  max-width: 520px;
  width: 100%;
  padding: 2rem;
  box-shadow: var(--shadow-lg), 0 0 35px rgba(0, 210, 106, 0.2);
  position: relative;
  transform: translateY(20px);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-backdrop.active .modal-box {
  transform: translateY(0);
}

.modal-close-btn {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
}

.modal-close-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  color: white;
}

.modal-drive-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.modal-drive-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(0, 210, 106, 0.15);
  border: 1px solid rgba(0, 210, 106, 0.35);
  color: var(--drive-green);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.modal-drive-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: #fff;
}

.modal-drive-subtitle {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.drive-url-edit-box {
  margin: 1rem 0 1.5rem;
  background: rgba(0, 0, 0, 0.3);
  padding: 0.85rem;
  border-radius: var(--radius-md);
  border: 1px dashed rgba(255, 255, 255, 0.15);
}

.drive-url-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
  display: block;
}

.drive-url-row {
  display: flex;
  gap: 0.5rem;
}

.drive-url-input {
  flex: 1;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.45rem 0.75rem;
  color: #fff;
  font-size: 0.82rem;
  font-family: var(--font-mono);
  outline: none;
}

.drive-url-input:focus {
  border-color: var(--drive-green);
}

.modal-drive-actions {
  display: flex;
  gap: 0.75rem;
}

/* ==========================================================================
   TOAST NOTIFICACIONES
   ========================================================================== */

.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 1200;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  pointer-events: none;
}

.toast {
  background: var(--bg-surface);
  border: 1px solid var(--border-glass);
  border-left: 4px solid var(--drive-green);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.25rem;
  color: #fff;
  font-size: 0.85rem;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  pointer-events: auto;
  animation: toast-in 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================================================
   RESPONSIVE & DESHABILITACIÓN EN MÓVILES
   ========================================================================== */

@media (max-width: 768px) {
  .header-container {
    flex-direction: column;
    align-items: center;
    gap: 0;
  }
  
  .drive-cta-wrapper {
    width: 100%;
  }
  
  .drive-cta-wrapper .btn-drive {
    width: 100%;
    padding: 0.85rem 1.2rem;
  }

  /* DESHABILITAR MODOS 3D Y CINE EN MÓVIL */
  .view-mode-tabs {
    display: none !important;
  }

  #view3DSection,
  #viewCinemaSection {
    display: none !important;
  }

  #gridViewSection {
    display: block !important;
  }

  .photo-grid {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 0.85rem;
  }
}

@media (max-width: 500px) {
  .main-header {
    padding: 0.75rem 1rem;
  }
  .view-section {
    padding: 1rem 0.75rem 3rem;
  }
  .photo-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.6rem;
  }
  /* En móvil mostrar siempre el botón de descarga en la esquina superior */
  .card-overlay {
    opacity: 1;
    background: transparent;
    padding: 0.5rem;
  }
  .card-download-btn {
    width: 32px;
    height: 32px;
  }
  .card-download-btn i {
    width: 15px !important;
    height: 15px !important;
  }
  .lightbox-nav-btn {
    width: 40px;
    height: 40px;
  }
  .lightbox-nav-btn.prev { left: 0.5rem; }
  .lightbox-nav-btn.next { right: 0.5rem; }
  .lightbox-thumbnails {
    display: none;
  }
}