:root {
  --color-green: #00a86b;
  --color-purple: #6a0dad;
  --color-light-green: #e6f7f2;
  --color-light-purple: #f0e6fa;
  --color-white: #ffffff;
  --color-black: #333333;
  --color-light-gray: #f4f4f4;
  --color-dark-gray: #333333;
  --color-gray: #64748b;
  --font-size-base: 16px;
  --spacing-base: 1rem;
  --transition-base: all 0.3s ease-in-out;
  --transition-fast: all 0.2s ease;
  --transition-slow: all 0.5s ease;
  --border-radius-sm: 6px;
  --border-radius-md: 10px;
  --border-radius-lg: 15px;
  --border-radius-xl: 30px;
  --shadow-sm: 0 2px 5px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 15px rgba(106, 13, 173, 0.3);
  --shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 12px 35px rgba(0, 0, 0, 0.2);
  --shadow-light: 0 2px 10px rgba(0, 0, 0, 0.1);
  --shadow-heavy: 0 5px 20px rgba(0, 0, 0, 0.2);
  --gradient-primary: linear-gradient(135deg, var(--color-purple), var(--color-green));
  --gradient-secondary: linear-gradient(135deg, var(--color-light-purple), var(--color-light-green));
  --font-family: "Poppins", sans-serif;
  --line-height: 1.6;
  --h1-size: clamp(1.8rem, 4vw, 2.5rem);
  --h2-size: clamp(1.6rem, 3.5vw, 2.2rem);
  --h3-size: clamp(1.3rem, 3vw, 1.8rem);
  --p-size: clamp(0.95rem, 2vw, 1.1rem);
  --title-color: var(--color-purple);
  --subtitle-color: var(--color-dark-gray);
  --text-color: var(--color-black);
  --text-light-color: #64748b;
  --glass-bg: rgba(255, 255, 255, 0.25);
  --glass-border: rgba(255, 255, 255, 0.18);
}

/* Reset y base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-family);
  line-height: var(--line-height);
  color: var(--text-color);
  background: linear-gradient(135deg, var(--color-light-purple) 0%, var(--color-light-green) 100%);
  min-height: 100vh;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

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

/* ---------------- HEADER (NO TOCAR) ---------------- */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  padding: 1rem var(--spacing-base);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-md);
  border-bottom: 1px solid var(--glass-border);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo img {
  border-radius: 50%;
  box-shadow: var(--shadow-sm);
}

.logo h1 {
  margin: 0;
  font-size: clamp(1.2rem, 3vw, 1.5rem);
  color: var(--title-color);
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Menú hamburguesa */
#menu-toggle {
  display: block;
  background: var(--gradient-primary);
  border: none;
  cursor: pointer;
  padding: 0.8rem;
  border-radius: 50%;
  box-shadow: var(--shadow-md);
  transition: var(--transition-base);
  z-index: 1001;
}

#menu-toggle:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-lg);
}

#menu-toggle span {
  display: block;
  width: 25px;
  height: 3px;
  background-color: var(--color-white);
  margin: 4px 0;
  border-radius: 3px;
  transition: var(--transition-base);
}

#menu-toggle.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

#menu-toggle.open span:nth-child(2) {
  opacity: 0;
}

#menu-toggle.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Navegación */
#main-nav {
  display: none;
  flex-direction: column;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-base);
  border-radius: 0 0 var(--border-radius-md) var(--border-radius-md);
  border: 1px solid var(--glass-border);
}

#main-nav.active {
  display: flex;
  animation: slideDown 0.3s ease-out;
}

#main-nav ul {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: var(--spacing-base);
}

#main-nav ul li a {
  text-decoration: none;
  color: var(--text-color);
  font-weight: 500;
  font-size: 1rem;
  padding: 0.75rem var(--spacing-base);
  display: block;
  transition: var(--transition-base);
  border-radius: var(--border-radius-sm);
  position: relative;
  overflow: hidden;
}

#main-nav ul li a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 0;
  background: var(--gradient-primary);
  transition: width 0.3s ease;
  z-index: -1;
}

#main-nav ul li a:hover::before,
#main-nav ul li a.active::before {
  width: 100%;
}

#main-nav ul li a:hover,
#main-nav ul li a.active {
  color: var(--color-white);
  transform: translateX(5px);
}

.user-actions {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding-top: var(--spacing-base);
  border-top: 1px solid var(--glass-border);
}

.btn-acceso {
  background: var(--gradient-primary);
  color: var(--color-white);
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius-xl);
  font-weight: 600;
  transition: var(--transition-base);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  box-shadow: var(--shadow-md);
  font-size: 0.9rem;
}

.btn-acceso:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* ---------------- GALERÍA MEJORADA ---------------- */
.galeria {
  padding: 4rem 2rem;
  max-width: 1400px;
  margin: 0 auto;
  position: relative;
}

.galeria-header {
  text-align: center;
  margin-bottom: 3rem;
  animation: fadeInUp 0.8s ease;
}

.galeria h2 {
  font-size: var(--h2-size);
  color: var(--title-color);
  margin-bottom: 1rem;
  position: relative;
  display: inline-block;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.galeria h2::after {
  content: "";
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 90px;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

.galeria-subtitle {
  color: var(--color-gray);
  font-size: var(--p-size);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.5;
}

/* Filtros */
.filtros {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
  animation: fadeInUp 1s ease;
}

.filtro-btn {
  padding: 0.6rem 1.5rem;
  border-radius: var(--border-radius-xl);
  background: var(--color-white);
  color: var(--color-purple);
  border: 2px solid var(--color-light-purple);
  cursor: pointer;
  transition: var(--transition-base);
  font-weight: 500;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(5px);
}

.filtro-btn.active,
.filtro-btn:hover {
  background: var(--gradient-primary);
  color: var(--color-white);
  border-color: transparent;
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

/* Grid */
.galeria-contenedor {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-bottom: 3rem;
  animation: fadeInUp 1.2s ease;
}

.galeria-item {
  position: relative;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  height: 300px;
  background: var(--color-white);
  box-shadow: var(--shadow-light);
  transition: var(--transition-base);
  cursor: pointer;
}

.galeria-item::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(106, 13, 173, 0.2), rgba(0, 168, 107, 0.2));
  opacity: 0;
  transition: var(--transition-slow);
}

.galeria-item:hover {
  transform: translateY(-10px) scale(1.03);
  box-shadow: var(--shadow-heavy);
}

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

.galeria-item img,
.galeria-item video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s ease;
}

.galeria-item:hover img,
.galeria-item:hover video {
  transform: scale(1.1);
}

/* Overlay */
.galeria-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(106, 13, 173, 0.85),
    rgba(0, 168, 107, 0.85)
  );
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition-base);
  color: var(--color-white);
  text-align: center;
}

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

.galeria-overlay i {
  font-size: 2.8rem;
  margin-bottom: 0.75rem;
  animation: pulse 1.8s infinite;
}

.galeria-overlay .overlay-text {
  font-weight: 600;
  font-size: 1.05rem;
  line-height: 1.4;
  padding: 0 1rem;
}

/* Álbumes */
.albumes {
  margin-bottom: 4rem;
  text-align: center;
}

.albumes-header h2 {
  color: var(--title-color);
  font-size: var(--h3-size);
  margin-bottom: 0.5rem;
}

.albumes-subtitle {
  color: var(--color-gray);
  font-size: 0.95rem;
  margin-bottom: 2rem;
}

.albumes-contenedor {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.album-card {
  background: var(--color-white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-light);
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition-base);
}

.album-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-heavy);
}

.album-thumb img,
.album-thumb video {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-bottom: 3px solid var(--color-light-purple);
}

.album-nombre {
  padding: 1rem;
  font-weight: 600;
  color: var(--color-purple);
  font-size: 1rem;
}

/* Indicador de video */
.video-indicator {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(0, 0, 0, 0.7);
  color: var(--color-white);
  padding: 0.3rem 0.6rem;
  border-radius: var(--border-radius-xl);
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  z-index: 9998;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
  background: var(--color-white);
  border: 3px solid var(--color-purple);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  transform: scale(0.8);
  transition: all 0.3s ease;
}

.modal-overlay.active .modal-content {
  transform: scale(1);
}

.modal-image {
  width: 100%;
  height: auto;
  display: block;
}

.modal-close,
.modal-nav {
  background: rgba(0, 0, 0, 0.7);
  color: var(--color-white);
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 40px;
  height: 40px;
}

.modal-close:hover {
  background: rgba(0, 0, 0, 0.9);
  transform: scale(1.1);
}

.modal-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  font-size: 1.2rem;
}

.modal-prev {
  left: 1rem;
}

.modal-next {
  right: 1rem;
}

.modal-counter {
  position: absolute;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.7);
  color: var(--color-white);
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius-xl);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.5px;
}

/* Animaciones */
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.15); }
}

/* Responsive */
@media (min-width: 768px) {
  #menu-toggle { 
    display: none; 
  }

  #main-nav {
    display: flex !important;
    flex-direction: row;
    position: static;
    box-shadow: none;
    width: auto;
    background-color: transparent;
    padding: 0;
    align-items: center;
    backdrop-filter: none;
    border: none;
  }

  #main-nav ul {
    flex-direction: row;
    gap: 2rem;
    margin-bottom: 0;
  }

  #main-nav ul li a {
    padding: 0.5rem 0;
  }

  .user-actions {
    flex-direction: row;
    padding-top: 0;
    border-top: none;
    margin-left: 2rem;
  }

  .galeria-contenedor {
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  }

  .albumes-contenedor {
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  }
}

/* Dispositivos medianos */
@media (max-width: 768px) {
  .galeria {
    padding: 2rem 1rem;
  }

  .filtros {
    gap: 0.5rem;
  }

  .filtro-btn {
    padding: 0.4rem 1rem;
    font-size: 0.9rem;
  }

  .galeria-contenedor {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
  }

  .galeria-item {
    height: 250px;
  }

  .albumes-contenedor {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  }

  .album-thumb img, .album-thumb video {
    height: 150px;
  }

  .modal-nav {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }

  .modal-prev {
    left: 0.5rem;
  }

  .modal-next {
    right: 0.5rem;
  }
}

/* Dispositivos pequeños */
@media (max-width: 480px) {
  .galeria-contenedor {
    grid-template-columns: 1fr;
  }

  .galeria-item {
    height: 200px;
  }

  .albumes-contenedor {
    grid-template-columns: 1fr;
  }

  .modal-overlay {
    padding: 1rem;
  }

  .modal-counter {
    font-size: 0.8rem;
  }
}

/* Loader */
.loader-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-white);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: var(--transition-slow);
}

.loader-container.loaded {
  opacity: 0;
  pointer-events: none;
}

.loader-spinner {
  width: 50px;
  height: 50px;
  border: 5px solid var(--color-light-purple);
  border-top-color: var(--color-purple);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 1rem;
}

.loader-message {
  color: var(--color-purple);
  font-weight: 600;
  font-size: 1rem;
}

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



.album-card.active {
    transform: scale(1.05);
    border: 3px solid var(--color-green);
    box-shadow: 0 0 15px rgba(0, 168, 107, 0.6);
    transition: all 0.3s ease;
}
.album-card {
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.album-card:hover {
    transform: scale(1.03);
}

.album-card {
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.album-card:hover {
    transform: scale(1.03);
}
.album-card.active {
    transform: scale(1.05);
    border: 3px solid var(--color-green);
    box-shadow: 0 0 15px rgba(0, 168, 107, 0.6);
    transition: all 0.3s ease;
}
.modal-overlay {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.8);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}
.modal-overlay.active {
    display: flex;
}
.modal-content {
    position: relative;
    max-width: 90%;
    max-height: 90%;
}
.modal-image {
    width: 100%;
    height: auto;
    border-radius: 10px;
}
.modal-close, .modal-nav {
    position: absolute;
    background: rgba(255,255,255,0.8);
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    border-radius: 50%;
    padding: 0.5rem;
}
.modal-close { top: 10px; right: 10px; }
.modal-prev { left: -50px; top: 50%; transform: translateY(-50%); }
.modal-next { right: -50px; top: 50%; transform: translateY(-50%); }
.modal-counter {
    position: absolute;
    bottom: 10px;
    right: 10px;
    color: white;
    font-size: 1rem;
}