/* Category tabs */
.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.tab-btn {
  padding: 7px 14px;
  border: 1px solid #ddd;
  border-radius: 20px;
  background: #fff;
  font-family: inherit;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.15s;
  color: #555;
}
.tab-btn:hover { border-color: #0078d4; color: #0078d4; }
.tab-btn.active {
  background: #0078d4;
  border-color: #0078d4;
  color: #fff;
  font-weight: 600;
}

.card-title {
  margin-bottom: 14px;
}

/* Conversion row */
.convert-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}
.convert-row:last-child { margin-bottom: 0; }

.unit-input {
  flex: 1;
  min-width: 0;
  padding: 10px 12px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 15px;
  font-family: 'Consolas', monospace;
  text-align: right;
  transition: border-color 0.15s;
}
.unit-input:focus {
  outline: none;
  border-color: #0078d4;
}

.unit-label {
  width: 145px;
  font-size: 13px;
  color: #555;
  flex-shrink: 0;
}
.unit-symbol {
  width: 52px;
  font-size: 12px;
  color: #999;
  text-align: right;
  flex-shrink: 0;
  font-family: 'Consolas', monospace;
}

.divider {
  border: none;
  border-top: 1px dashed #eee;
  margin: 10px 0;
}

/* CJK labels are shorter — narrower width (was per-language style.css) */
:lang(ko) .unit-label { width: 110px; }
:lang(ja) .unit-label { width: 130px; }