.storage-calculator{
  max-width:720px;
  margin:0 auto;
  padding:16px;
  border:1px solid #e5e7eb;
  border-radius:12px;
}

.storage-calculator h2{
  margin:0 0 12px;
  font-size:24px;
}

.storage-calculator .grid{
  display:grid;
  grid-template-columns:1fr;
  gap:12px;
}

@media (min-width:720px){
  .storage-calculator .grid{
    grid-template-columns:1fr 1fr;
  }
}

.storage-calculator label{
  display:block;
  font-weight:600;
  margin-bottom:6px;
}

.storage-calculator input{
  width:100%;
  padding:10px 12px;
  border:1px solid #d1d5db;
  border-radius:10px;
  font-size:16px;
  box-sizing:border-box;
}

.storage-calculator .result{
  margin-top:14px;
  padding:12px;
  background:#f9fafb;
  border-radius:10px;
}

.storage-calculator .result strong{
  font-size:20px;
}

.storage-calculator .hint{
  font-size:13px;
  color:#6b7280;
  margin-top:6px;
}

.storage-calculator .muted{
  opacity:.8;
}

.storage-calculator .recommendation{
  margin-top:12px;
  padding:12px;
  border:1px solid #e5e7eb;
  border-radius:10px;
  background:#ffffff;
  font-size:15px;
  line-height:1.45;
}
.storage-calculator .notice{
  margin-top:10px;
  font-size:13px;
  color:#6b7280;
  font-style:italic;
}
.storage-calculator{
  font-family: 'Montserrat', sans-serif;
}