body { background: #000; }

.hplpdf-library {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 28px;
  margin: 42px auto;
  max-width: 1200px;
  padding: 0 24px;
}

.hplpdf-card {
  background: #050505;
  border: 1px solid #242424;
  color: #fff;
  padding: 26px;
  min-height: 320px;
}

.hplpdf-icon {
  display: inline-flex;
  width: 54px;
  height: 54px;
  align-items: center;
  justify-content: center;
  border: 1px solid #555;
  color: #fff;
  font-size: 13px;
  letter-spacing: 1.5px;
  margin-bottom: 18px;
}

.hplpdf-badge {
  display: inline-block;
  border: 1px solid #444;
  color: #bdbdbd;
  font-size: 11px;
  letter-spacing: 1.5px;
  padding: 5px 8px;
  margin-left: 10px;
  vertical-align: top;
  margin-top: 14px;
}

.hplpdf-card h3 {
  margin: 0 0 18px;
  color: #fff;
  font-size: 18px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
}

.hplpdf-description {
  color: #d0d0d0;
  line-height: 1.65;
  font-size: 15px;
}

.hplpdf-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 22px;
  border: 1px solid #fff;
  color: #000;
  background: #fff;
  text-decoration: none;
  padding: 12px 18px;
  font-size: 12px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  transition: all .2s ease;
}

.hplpdf-download:hover {
  background: #000;
  color: #fff;
}

@media (max-width: 768px) {
  .hplpdf-library {
    grid-template-columns: 1fr;
    padding: 0 18px;
    gap: 22px;
  }
}