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

/* BODY */
body {
  min-height: 100vh;
  background: red;
  color: blue;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI";
}

/* PAGE */
.page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px;
}

/* TITLE */
.title {
  text-align: center;
  font-size: 28px;
  margin-bottom: 10px;
}

.icon {
  margin-right: 8px;
}

/* HINT TEXT */
.hint {
  text-align: center;
  opacity: 0.7;
  margin-bottom: 30px;
}

/* GALLERY GRID */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}

/* CARD */
.card {
  background: white;
  border: 1px solid #1e293b;
  border-radius: 14px;
  padding: 14px;
  text-align: center;
}

/* TOPIC */
.topic {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 10px;
}

/* IMAGE / PDF ICON */
.card img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: 10px;
  cursor: pointer;
}

/* BUTTON */
.card button {
  width: 100%;
  margin-top: 10px;
  padding: 9px;
  border-radius: 8px;
  border: none;
  background: #38bdf8;
  color: #000;
  font-weight: 600;
  cursor: pointer;
}