:root {
  --bg-color: #f8f9fa;
  --text-color: #212529;
  --card-bg: #ffffff;
  --card-shadow: rgba(0, 0, 0, 0.1);
}

body.dark {
  --bg-color: #121212;
  --text-color: #f1f1f1;
  --card-bg: #1f1f1f;
  --card-shadow: rgba(255, 255, 255, 0.1);
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: var(--bg-color);
  color: var(--text-color);
  transition: background 0.3s, color 0.3s;
}

header {
  text-align: center;
  padding: 1rem;
}

.controls {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
}

input[type="text"] {
  padding: 0.5rem;
  width: 50%;
  border: 1px solid #ccc;
  border-radius: 4px;
}

button {
  padding: 0.5rem 1rem;
  border: none;
  background: #007bff;
  color: white;
  border-radius: 4px;
  cursor: pointer;
  transition: background 0.2s;
}

button:hover {
  background: #0056b3;
}

#image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1rem;
  padding: 1rem;
}

.image-card {
  background: var(--card-bg);
  border-radius: 8px;
  box-shadow: 0 4px 6px var(--card-shadow);
  overflow: hidden;
  transition: transform 0.3s;
}

.image-card:hover {
  transform: scale(1.03);
}

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

.image-info {
  padding: 0.5rem;
}

.image-info p {
  margin: 0.3rem 0;
  font-size: 0.9rem;
}

.actions {
  text-align: center;
  margin: 1rem 0;
}

footer {
  text-align: center;
  padding: 1rem;
  font-size: 0.8rem;
}

footer a {
  color: #007bff;
}