html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: Arial, Helvetica, sans-serif;
}

.hero {
  position: relative;
  background-image: url(https://www.moma.org/media/W1siZiIsIjUyNzA5MyJdLFsicCIsImNvbnZlcnQiLCItcXVhbGl0eSA5MCAtcmVzaXplIDIwMDB4MjAwMFx1MDAzZSJdXQ.jpg?sha=da20fc76a92424dd);
  background-repeat: no-repeat;
  background-size: 100% auto;
  background-position: top center;
  background-attachment: scroll;
}

header {
  text-align: center;
  padding: 20px 0;
}

header h1 {
  margin: 0;
  font-size: 1.5em;
}

main {
  text-align: center;
  padding: 20px;
  color: #38c223;
}

main h1 {
  font-size: 2em;
  margin-bottom: 10px;
}

main p {
  margin-bottom: 20px;
}

.grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(3, 1fr);
  max-width: 1400px;
  margin: 0 auto;
  padding: 0;
  list-style: none;
}

@media (min-width: 900px) {
  .grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 1200px) {
  .grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

@media (min-width: 1500px) {
  .grid {
    grid-template-columns: repeat(6, 1fr);
  }
}

.list-item {
  aspect-ratio: 1 / 1;
  border: 1px solid gray;
  background-color: darkgreen;
  overflow: hidden;
}

.list-item img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.empty-space {
  min-height: 800px;
}

.store-section {
  padding: 0 20px 20px;
  background-color: #ffffff;
}

.section-header {
  text-align: center;
  padding: 20px 0 20px;
  margin: 0;
}

.section-header h2 {
  margin: 0;
  font-size: 2em;
  color: #222;
}

.add-tile {
  background-color: #f0f0f0;
  border: 2px dashed #999;
  display: flex;
  justify-content: center;
  align-items: center;
}

.add-button {
  width: 100%;
  height: 100%;
  background: none;
  border: none;
  font-size: 3em;
  line-height: 1;
  color: #999;
  cursor: pointer;
}

.add-button:hover {
  color: #444;
}

footer {
  text-align: center;
  padding: 15px 0;
  background-color: rgba(255, 255, 255, 0.85);
}

footer .footer-title {
  font-size: 0.75em;
  margin: 0 0 5px 0;
}

footer a {
  font-size: 0.75em;
  color: #444;
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

/* API load controls */

.api-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px;
  max-width: 1400px;
  margin: 0 auto 10px;
  padding: 16px;
  background-color: #f7f7f7;
  border: 1px solid #ddd;
  border-radius: 6px;
}

.api-label {
  font-size: 0.85em;
  color: #444;
}

.api-select,
.api-input {
  padding: 8px 10px;
  font-size: 0.9em;
  border: 1px solid #ccc;
  border-radius: 4px;
}

.api-input {
  flex: 1 1 220px;
  min-width: 160px;
}

.api-load-button {
  background-color: #222;
  color: #fff;
  border: none;
  padding: 9px 16px;
  border-radius: 4px;
  font-size: 0.9em;
  cursor: pointer;
}

.api-load-button:hover {
  background-color: #444;
}

.api-load-button:disabled {
  background-color: #999;
  cursor: not-allowed;
}

.api-status {
  text-align: center;
  font-size: 0.85em;
  color: #666;
  max-width: 1400px;
  margin: 0 auto 16px;
  min-height: 1.2em;
}

/* Upload modal */

.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.6);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  padding: 20px;
}

.modal-overlay[hidden] {
  display: none;
}

.modal {
  background-color: #fff;
  border-radius: 8px;
  width: 100%;
  max-width: 480px;
  padding: 20px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.modal-header h3 {
  margin: 0;
  font-size: 1.25em;
  color: #222;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5em;
  line-height: 1;
  color: #666;
  cursor: pointer;
  padding: 0 4px;
}

.modal-close:hover {
  color: #222;
}

.dropzone {
  border: 2px dashed #999;
  border-radius: 6px;
  padding: 40px 20px;
  text-align: center;
  background-color: #fafafa;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.dropzone.dragover {
  background-color: #eef7ee;
  border-color: #38c223;
}

.dropzone-text {
  margin: 0 0 10px;
  color: #444;
  font-size: 1em;
}

.dropzone-or {
  margin: 0 0 10px;
  color: #999;
  font-size: 0.85em;
}

.browse-button {
  background-color: #222;
  color: #fff;
  border: none;
  padding: 10px 18px;
  border-radius: 4px;
  font-size: 0.9em;
  cursor: pointer;
}

.browse-button:hover {
  background-color: #444;
}

.modal-note {
  margin: 14px 0 0;
  font-size: 0.8em;
  color: #999;
  text-align: center;
  min-height: 1em;
}