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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
}

header {
  background: rgba(255, 255, 255, 0.95);
  padding: 30px 20px;
  text-align: center;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  backdrop-filter: blur(10px);
}

h1 {
  color: #333;
  font-size: 2.5em;
  font-weight: 700;
  margin-bottom: 10px;
}

.subtitle {
  color: #666;
  font-size: 1.1em;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 40px 20px;
}

.galeria {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 25px;
}

.galeria-item {
  position: relative;
  overflow: hidden;
  border-radius: 16px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
  transition: all 0.3s ease;
  background: #fff;
  cursor: pointer;
}

.galeria-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.25);
}

.galeria-item img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  display: block;
  transition: transform 0.3s ease;
}

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

.overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
  padding: 20px;
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

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

.overlay-text {
  color: white;
  font-size: 0.9em;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Lightbox */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.95);
  justify-content: center;
  align-items: center;
  z-index: 1000;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.lightbox-content {
  position: relative;
  max-width: 90%;
  max-height: 90%;
  animation: zoomIn 0.3s ease;
}

@keyframes zoomIn {
  from { transform: scale(0.8); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.lightbox-content img {
  max-width: 100%;
  max-height: 90vh;
  border-radius: 12px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.btn-close {
  position: absolute;
  top: -50px;
  right: 0;
  background: rgba(255, 255, 255, 0.2);
  border: 2px solid white;
  color: white;
  width: 45px;
  height: 45px;
  border-radius: 50%;
  font-size: 24px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.btn-close:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: rotate(90deg);
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.2);
  border: 2px solid white;
  color: white;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  font-size: 24px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.lightbox-nav:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: translateY(-50%) scale(1.1);
}

.btn-prev {
  left: 20px;
}

.btn-next {
  right: 20px;
}

.loading {
  display: inline-block;
  width: 40px;
  height: 40px;
  border: 4px solid rgba(255,255,255,0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* Responsivo */
@media (max-width: 768px) {
  h1 {
    font-size: 1.8em;
  }
  
  .galeria {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 15px;
  }
  
  .galeria-item img {
    height: 200px;
  }
  
  .btn-close {
    top: 20px;
    right: 20px;
  }
  
  .lightbox-nav {
    width: 40px;
    height: 40px;
    font-size: 18px;
  }
}