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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: #0f172a;
  color: #f8fafc;
  padding: 2rem 1rem;
}

header {
  text-align: center;
  margin-bottom: 2.5rem;
}

header h1 {
  font-size: 2.2rem;
  letter-spacing: -0.5px;
}

header p {
  color: #94a3b8;
  margin-top: 0.5rem;
}

/* Pinterest / Grid Düzeni */
.gallery-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: 12px;
  cursor: pointer;
  background: #1e293b;
  aspect-ratio: 4 / 3;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

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

.overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.overlay span {
  color: #fff;
  font-size: 0.95rem;
  font-weight: 500;
  padding: 8px 16px;
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 20px;
}

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

/* Büyütme Penceresi */
.modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.9);
  z-index: 999;
  justify-content: center;
  align-items: center;
}

.modal-content {
  max-width: 90%;
  max-height: 85vh;
  border-radius: 8px;
}

.close-btn {
  position: absolute;
  top: 20px;
  right: 30px;
  color: #fff;
  font-size: 35px;
  cursor: pointer;
}