body {
  font-family: system-ui, sans-serif;
  background: #fafafa;
  color: #222;
  margin: 0;
  padding: 0;
}

.container {
  max-width: 900px;
  margin: 40px auto;
  padding: 20px;
  text-align: center;
}

h1 {
  margin-bottom: 20px;
}

.description {
  max-width: 700px;
  margin: 10px auto 30px;
  color: #555;
}

.covers {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.covers img {
  width: 280px;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s, opacity 0.2s;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
  background: #fff;
}

.covers img:hover {
  transform: scale(1.03);
}

.covers img.selected {
  box-shadow: 0 0 0 4px #2a7fff;
}

.covers img.dimmed {
  opacity: 0.4;
}

.link-button {
  border: none;
  background: none;
  color: #2a7fff;
  cursor: pointer;
  text-decoration: underline;
  margin-bottom: 10px;
  padding: 0;
}

.link-button:hover {
  color: #1f5fcc;
}

input, textarea {
  width: 100%;
  max-width: 420px;
  padding: 10px;
  margin: 10px auto;
  display: block;
  box-sizing: border-box;
  font-family: inherit;
}

textarea {
  resize: vertical;
}

button {
  padding: 12px 20px;
  background: #2a7fff;
  color: white;
  border: none;
  cursor: pointer;
  margin-top: 10px;
  border-radius: 6px;
}

button:hover {
  background: #1f5fcc;
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.hidden {
  display: none;
}

.privacy {
  font-size: 0.85em;
  color: #777;
  max-width: 520px;
  margin: 12px auto 0;
  line-height: 1.35;
}