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

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #0f172a, #111827);
  color: #fff;
  min-height: 100vh;
  padding: 20px;
}

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

header {
  text-align: center;
  margin-bottom: 50px;
  padding-top: 30px;
}

h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 15px;
  background: linear-gradient(135deg, #f1f5f9, #f1f5f9);
  letter-spacing: 0.4px;

  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  letter-spacing: 0.3p;
  font-size: 1.1rem;
  color: #9ca3af;
  font-weight: 300;
}

.filter-container {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 12px 30px;
  border: 2px solid rgba(255, 255, 255, 0.1);
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: #ffffff;

  font-size: 1rem;
  cursor: pointer;
  border-radius: 30px;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.filter-btn:hover {
  background: #374151;
  border-color: rgba(102, 126, 234, 0.5);
  transform: translateY(-2px);
}

.filter-btn.active {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-color: transparent;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 25px;
  padding: 20px 0;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 4/3;
  border-radius: 16px;
  background-color: #0b1220;
  border-radius: 14px;

  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
}

.gallery-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
  transition: all 0.3s ease;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.gallery-item .overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
  padding: 20px;
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

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

.overlay h3 {
  font-size: 1.2rem;
  margin-bottom: 5px;
}

.overlay p {
  font-size: 0.9rem;
  color: #ccc;
}

.lightbox {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.95);
  z-index: 1000;
  justify-content: center;
  align-items: center;
  animation: fadeIn 0.3s ease;
}

.lightbox.active {
  display: flex;
}

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

.lightbox-content {
  position: relative;
  max-width: 90%;
  max-height: 90%;
  animation: slideIn 0.4s ease;
}

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

.lightbox img {
  max-width: 100%;
  max-height: 85vh;
  border-radius: 10px;
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.8);
}

.lightbox-close {
  position: absolute;
  top: -50px;
  right: 0;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: #fff;
  font-size: 2rem;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: rotate(90deg);
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: #fff;
  font-size: 2rem;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.lightbox-nav:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-50%) scale(1.1);
}

.lightbox-prev {
  left: -80px;
}

.lightbox-next {
  right: -80px;
}

.lightbox-caption {
  text-align: center;
  margin-top: 20px;
  font-size: 1.2rem;
  color: #fff;
}

@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }

  .gallery {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 15px;
  }

  .filter-btn {
    padding: 10px 20px;
    font-size: 0.9rem;
  }

  .lightbox-nav {
    width: 50px;
    height: 50px;
    font-size: 1.5rem;
  }

  .lightbox-prev {
    left: 10px;
  }

  .lightbox-next {
    right: 10px;
  }

  .lightbox-close {
    top: 10px;
    right: 10px;
  }
}

@media (max-width: 480px) {
  .gallery {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 1.8rem;
  }
}