.sgh-kr {
  --sgh-kr-border: #d8d8d8;
  --sgh-kr-bg: #fff;
  --sgh-kr-muted: #666;
  --sgh-kr-accent: #000;
  width: 100%;
  padding: 24px;
  border: 1px solid var(--sgh-kr-border);
  background: var(--sgh-kr-bg);
  font-size: 16px;
  line-height: 1.5;
  box-sizing: border-box;
}

.sgh-kr *,
.sgh-kr *::before,
.sgh-kr *::after { box-sizing: inherit; }

.sgh-kr__title {
  margin: 0 0 20px;
  font-size: 24px;
  font-weight: 600;
}

.sgh-kr__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.sgh-kr__field { display: flex; flex-direction: column; gap: 8px; }

.sgh-kr__field label {
  font-size: 14px;
  font-weight: 500;
}

.sgh-kr__field input[type="text"],
.sgh-kr__field input[type="number"] {
  width: 100%;
  height: 44px;
  padding: 0 12px;
  border: 1px solid var(--sgh-kr-border);
  border-radius: 0;
  background: #fff;
  font-size: 16px;
  font-family: inherit;
  color: inherit;
}

.sgh-kr__field input:focus {
  outline: 2px solid var(--sgh-kr-accent);
  outline-offset: -1px;
}

.sgh-kr__radios { display: flex; gap: 8px; }

.sgh-kr__radio {
  position: relative;
  flex: 1;
  display: block;
  cursor: pointer;
}

.sgh-kr__radio input {
  position: absolute;
  opacity: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  cursor: pointer;
}

.sgh-kr__radio span {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  border: 1px solid var(--sgh-kr-border);
  font-size: 16px;
  transition: background .12s, color .12s;
}

.sgh-kr__radio input:checked + span {
  background: var(--sgh-kr-accent);
  border-color: var(--sgh-kr-accent);
  color: #fff;
}

.sgh-kr__radio input:focus-visible + span {
  outline: 2px solid var(--sgh-kr-accent);
  outline-offset: 2px;
}

.sgh-kr__results {
  margin-top: 28px;
  border-top: 1px solid var(--sgh-kr-border);
}

.sgh-kr__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--sgh-kr-border);
}

.sgh-kr__row[hidden] { display: none; }

.sgh-kr__row--sub {
  padding: 8px 0 8px 20px;
  font-size: 14px;
  color: var(--sgh-kr-muted);
}

.sgh-kr__row--total {
  font-weight: 600;
  font-size: 18px;
}

.sgh-kr__value {
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

@media (max-width: 600px) {
  .sgh-kr { padding: 16px; }
  .sgh-kr__grid { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  .sgh-kr__title { font-size: 20px; }
  .sgh-kr__row--total { font-size: 16px; }
}