:root {
  --blanco: #ffffff;
  --negro: #000000;
  --negro-t: #0000007A;
  --verde: #13FF18;
  --verde-t: #13FF1870;
  --rosa: #C448EB;
  --rosa-t: #C448EB85;
  --beis: #B59C7D;
  --beis-t: #B59C7DDE;
  --azul: #1fb6d3;
  --azul-t: #1FB6D36E;
  --gris-claro: #f8f9fa;
  --gris-medio: #e9ecef;
  --gris-oscuro: #6c757d;
  --sombra: rgba(0, 0, 0, 0.1);
  --sombra-hover: rgba(0, 0, 0, 0.15);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

body{
  font-family:'Montserrat',sans-serif;
  background:var(--gris-claro);
  color:var(--negro);
  min-height:100vh;
  display:flex;
  flex-direction:column;
}

/* ========== HEADER ========== */
header{
  background: linear-gradient(135deg, var(--azul), var(--rosa));
  color: var(--blanco);
  padding: 3rem 5% 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
  opacity: 0.3;
}

.header-content {
  position: relative;
  z-index: 2;
}

header h1{
  font-family:'DM Serif Display',serif;
  font-size: clamp(2.5rem, 5vw, 4rem);
  margin-bottom: 0.5rem;
  font-weight: 700;
  text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

header p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  opacity: 0.9;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.volver-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.2);
  color: var(--blanco);
  padding: 0.8rem 1.5rem;
  border-radius: 2rem;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.volver-btn:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
}

/* ========== CONTROLES ========== */
.controles-galeria {
  background: var(--blanco);
  padding: 2rem 5%;
  box-shadow: 0 2px 20px var(--sombra);
  margin-bottom: 2rem;
}

.buscador-container {
  margin-bottom: 1.5rem;
}

.search-box {
  position: relative;
  max-width: 500px;
  margin: 0 auto;
}

.search-box i {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gris-oscuro);
  z-index: 2;
}

.search-box input {
  width: 100%;
  padding: 1rem 3rem 1rem 3rem;
  border: 2px solid var(--gris-medio);
  border-radius: 2rem;
  font-size: 1rem;
  transition: all 0.3s ease;
  background: var(--gris-claro);
}

.search-box input:focus {
  outline: none;
  border-color: var(--azul);
  background: var(--blanco);
  box-shadow: 0 0 0 3px rgba(31, 182, 211, 0.1);
}

.btn-limpiar {
  position: absolute;
  right: 0.5rem;
  top: 50%;
  transform: translateY(-50%);
  background: var(--gris-medio);
  border: none;
  border-radius: 50%;
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  color: var(--gris-oscuro);
}

.btn-limpiar:hover {
  background: var(--gris-oscuro);
  color: var(--blanco);
}

.filtros-container {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
}

.filtro-select {
  padding: 0.8rem 1.5rem;
  border: 2px solid var(--gris-medio);
  border-radius: 1.5rem;
  background: var(--blanco);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--negro);
  cursor: pointer;
  transition: all 0.3s ease;
  min-width: 180px;
}

.filtro-select:focus {
  outline: none;
  border-color: var(--azul);
  box-shadow: 0 0 0 3px rgba(31, 182, 211, 0.1);
}

.btn-filtros {
  background: linear-gradient(135deg, var(--azul), var(--rosa));
  color: var(--blanco);
  border: none;
  padding: 0.8rem 1.5rem;
  border-radius: 1.5rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-filtros:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(31, 182, 211, 0.3);
}

/* ========== ESTADÍSTICAS ========== */
.estadisticas {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 5%;
  background: var(--blanco);
  margin-bottom: 2rem;
  border-radius: 1rem;
  box-shadow: 0 2px 10px var(--sombra);
  font-weight: 600;
  color: var(--gris-oscuro);
}

/* ========== GALERÍA GRID ========== */
.galeria-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  padding: 0 5% 2rem;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

.imagen-item {
  background: var(--blanco);
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: 0 4px 20px var(--sombra);
  transition: all 0.3s ease;
  cursor: pointer;
}

.imagen-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 30px var(--sombra-hover);
}

.imagen-container {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
}

.imagen-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.imagen-item:hover .imagen-container img {
  transform: scale(1.05);
}

.imagen-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,0.8));
  color: var(--blanco);
  padding: 1.5rem 1rem 1rem;
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.imagen-item:hover .imagen-overlay {
  transform: translateY(0);
}

.imagen-info h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  font-weight: 700;
}

.imagen-info .departamento,
.imagen-info .categoria {
  display: inline-block;
  background: rgba(255,255,255,0.2);
  padding: 0.3rem 0.8rem;
  border-radius: 1rem;
  font-size: 0.8rem;
  margin-right: 0.5rem;
  margin-bottom: 0.5rem;
  backdrop-filter: blur(10px);
}

.btn-ampliar {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: rgba(255,255,255,0.9);
  border: none;
  border-radius: 50%;
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  color: var(--negro);
  opacity: 0;
}

.imagen-item:hover .btn-ampliar {
  opacity: 1;
}

.btn-ampliar:hover {
  background: var(--blanco);
  transform: scale(1.1);
}

/* ========== LOADER ========== */
.loader {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem;
  color: var(--gris-oscuro);
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--gris-medio);
  border-top: 4px solid var(--azul);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 1rem;
}

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

/* ========== PAGINACIÓN ========== */
.paginacion {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  padding: 2rem 5%;
  background: var(--blanco);
  margin: 2rem 5%;
  border-radius: 1rem;
  box-shadow: 0 2px 10px var(--sombra);
}

.btn-pagina {
  background: var(--gris-claro);
  border: 2px solid var(--gris-medio);
  padding: 0.8rem 1.5rem;
  border-radius: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-pagina:hover:not(:disabled) {
  background: var(--azul);
  color: var(--blanco);
  border-color: var(--azul);
}

.btn-pagina:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.numeros-pagina {
  display: flex;
  gap: 0.5rem;
}

.btn-numero {
  background: var(--gris-claro);
  border: 2px solid var(--gris-medio);
  padding: 0.8rem 1rem;
  border-radius: 0.8rem;
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 600;
  min-width: 2.5rem;
}

.btn-numero:hover {
  background: var(--azul);
  color: var(--blanco);
  border-color: var(--azul);
}

.btn-numero.activo {
  background: var(--azul);
  color: var(--blanco);
  border-color: var(--azul);
}

/* ========== NO RESULTADOS ========== */
.no-resultados {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--gris-oscuro);
}

.no-resultados i {
  font-size: 4rem;
  color: var(--gris-medio);
  margin-bottom: 1rem;
}

.no-resultados h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--negro);
}

/* ========== ERROR CARGA ========== */
.error-carga {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--gris-oscuro);
}

.error-carga i {
  font-size: 4rem;
  color: #dc3545;
  margin-bottom: 1rem;
}

.error-carga h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--negro);
}

.btn-reintentar {
  background: var(--azul);
  color: var(--blanco);
  border: none;
  padding: 0.8rem 1.5rem;
  border-radius: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 600;
  margin-top: 1rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-reintentar:hover {
  background: var(--rosa);
  transform: translateY(-2px);
}

/* ========== MODAL ========== */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.9);
  backdrop-filter: blur(5px);
}

.modal-content {
  position: relative;
  margin: 2% auto;
  padding: 0;
  width: 90%;
  max-width: 800px;
  background: var(--blanco);
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.close-modal {
  position: absolute;
  top: 1rem;
  right: 1rem;
  color: var(--blanco);
  font-size: 2rem;
  font-weight: bold;
  cursor: pointer;
  z-index: 1001;
  background: rgba(0,0,0,0.5);
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.close-modal:hover {
  background: rgba(0,0,0,0.8);
}

#modal-img {
  width: 100%;
  height: auto;
  max-height: 60vh;
  object-fit: cover;
}

.modal-info {
  padding: 2rem;
}

.modal-info h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--negro);
  font-weight: 700;
}

.modal-info p {
  color: var(--gris-oscuro);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.modal-metadata {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.modal-metadata span {
  background: var(--gris-claro);
  padding: 0.5rem 1rem;
  border-radius: 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--gris-oscuro);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
  .controles-galeria {
    padding: 1.5rem 1rem;
  }
  
  .filtros-container {
    flex-direction: column;
    align-items: stretch;
  }
  
  .filtro-select {
    min-width: auto;
  }
  
  .galeria-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
    padding: 0 1rem 2rem;
  }
  
  .estadisticas {
    flex-direction: column;
    gap: 0.5rem;
    padding: 1rem;
    margin: 0 1rem 2rem;
  }
  
  .paginacion {
    margin: 2rem 1rem;
    flex-wrap: wrap;
    gap: 0.5rem;
  }
  
  .numeros-pagina {
    order: -1;
    width: 100%;
    justify-content: center;
  }
  
  .modal-content {
    width: 95%;
    margin: 5% auto;
  }
  
  .modal-info {
    padding: 1.5rem;
  }
}

@media (max-width: 480px) {
  header {
    padding: 2rem 1rem 1.5rem;
  }
  
  header h1 {
    font-size: 2rem;
  }
  
  .galeria-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .search-box input {
    padding: 0.8rem 2.5rem 0.8rem 2.5rem;
    font-size: 0.9rem;
  }
}