body {
  font-family: sans-serif;
  background: #f3f4f6;
  margin: 0;
  padding: 2rem;
}

.container {
  max-width: 1024px;
  margin: auto;
}

h1 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.controls {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
}

input[type="text"] {
  flex: 1;
  padding: 0.5rem;
  border: 1px solid #ccc;
  border-radius: 6px;
}

.upload-btn {
  background: #2563eb;
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.upload-btn input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.card {
  background: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  text-align: center;
}

.card img {
  width: 100%;
  height: 160px;
  object-fit: cover;
}

.card .filename {
  padding: 0.5rem;
  font-size: 0.9rem;
  color: #333;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1em;
  margin-top: 2em;
}

.thumbnail {
  width: 100%;
  height: 200px;
  /* Fixed height for uniformity */
  object-fit: cover;
  /* Ensures images fill frame nicely */
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: transform 0.2s ease;
}

.thumbnail:hover {
  transform: scale(1.03);
}

.intro {
  font-size: 1rem;
  color: #555;
  margin-bottom: 1.5em;
  line-height: 1.5;
}

caption {
  padding: 0.5em 0;
  color: #444;
}