/* 4대보험 계산기 전용 스타일 */

nav { max-width: 820px; }
main { max-width: 820px; }

.card-title {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 0.85rem;
}

.si-card {
  padding: 1rem 1.1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 0.95rem;
}

.si-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.7rem;
  margin-bottom: 0.95rem;
}

.si-field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  min-width: 0;
}

.si-label {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-sub);
}
.si-label em {
  font-style: normal;
  font-size: 0.7rem;
  color: var(--text-sub);
  font-weight: 500;
  text-transform: none;
  letter-spacing: 0;
  margin-left: 0.25rem;
}

.si-input-row {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 0 0.7rem 0 0;
  transition: border-color 0.15s;
}
.si-input-row:focus-within { border-color: var(--primary); }
.si-input-row input {
  flex: 1;
  min-width: 0;
  padding: 0.65rem 0.75rem;
  font-size: 1.05rem;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-weight: 700;
  border: none;
  background: transparent;
  color: var(--text);
  outline: none;
  font-variant-numeric: tabular-nums;
  text-align: right;
}
.si-unit {
  font-size: 0.85rem;
  color: var(--text-sub);
  font-weight: 600;
}

.si-helper {
  font-size: 0.74rem;
  color: var(--text-sub);
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  min-height: 0.85rem;
}
.si-helper:empty { display: none; }

.btn-calc {
  width: 100%;
  padding: 0.8rem 1.4rem;
  font-size: 0.98rem;
  font-weight: 800;
  background: var(--primary);
  color: #fff;
  border: 1px solid var(--primary);
  border-radius: 8px;
  cursor: pointer;
  transition: filter 0.15s;
  font-family: inherit;
}
.btn-calc:hover { filter: brightness(1.08); }

.result-card {
  padding: 1.1rem 1.2rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 1.5rem;
}

.result-head, .result-row {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr 1fr;
  gap: 0.55rem;
  align-items: center;
  padding: 0.55rem 0.7rem;
}

.result-head {
  font-size: 0.73rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-sub);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 7px;
  margin-bottom: 0.4rem;
}
.rh-emp, .rh-co { text-align: right; }

.result-row {
  border-bottom: 1px solid var(--border);
}
.result-row.total {
  margin-top: 0.4rem;
  background: rgba(99, 102, 241, 0.06);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: 7px;
  padding: 0.75rem 0.7rem;
}

.r-item {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text);
}
.r-item small {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-sub);
  margin-left: 0.2rem;
}

.r-rate {
  font-size: 0.78rem;
  color: var(--text-sub);
}
.r-rate.mono {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-variant-numeric: tabular-nums;
}

.r-emp, .r-co {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text);
  text-align: right;
}
.r-emp.mono, .r-co.mono {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-variant-numeric: tabular-nums;
}
.r-emp.big, .r-co.big {
  font-size: 1.1rem;
  color: var(--primary);
}

.summary-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.55rem;
  margin-top: 1rem;
}

.summary-cell {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.7rem 0.85rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.summary-cell.highlight {
  grid-column: 1 / -1;
  background: rgba(99, 102, 241, 0.08);
  border-color: rgba(99, 102, 241, 0.4);
}

.sum-label {
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--text-sub);
}
.sum-label em {
  font-style: normal;
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: none;
  letter-spacing: 0;
  margin-left: 0.2rem;
}

.sum-value {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
}
.sum-value.big {
  font-size: 1.5rem;
  color: var(--primary);
}
.sum-value.mono {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-variant-numeric: tabular-nums;
}
.sum-value.pos { color: #15803d; }
@media (prefers-color-scheme: dark) {
  .sum-value.pos { color: #4ade80; }
}

.si-note {
  margin-top: 1rem;
  padding: 0.7rem 0.9rem;
  font-size: 0.8rem;
  color: var(--text-sub);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  line-height: 1.65;
}

@media (max-width: 600px) {
  .si-grid { grid-template-columns: 1fr; }
  .result-head, .result-row { grid-template-columns: 1.5fr 1fr 1fr; }
  .rh-rate, .r-rate { display: none; }
  .summary-grid { grid-template-columns: 1fr; }
  .summary-cell.highlight { grid-column: 1; }
  .r-emp.big, .r-co.big { font-size: 0.98rem; }
  .sum-value.big { font-size: 1.25rem; }
}