/* 근무일·영업일 계산기 전용 스타일 */

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

.subtitle {
  color: var(--text-sub);
  margin-bottom: 1.25rem;
}

/* 폼 */
.form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.95rem 1rem;
  margin-bottom: 1.25rem;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
  margin-bottom: 0.7rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.field label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text);
}

.field input[type="date"] {
  padding: 0.55rem 0.7rem;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.95rem;
  font-weight: 600;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--bg);
  color: var(--text);
  outline: none;
  width: 100%;
  box-sizing: border-box;
}

.field input[type="date"]:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.12);
}

.opt-chk {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--text);
  cursor: pointer;
  user-select: none;
  margin-top: 0.2rem;
}

.opt-chk input {
  accent-color: var(--primary);
  cursor: pointer;
}

.opt-chk:hover span {
  color: var(--primary);
}

/* 결과 그리드 */
.result-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.6rem;
  margin-bottom: 1.5rem;
}

.rcell {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.75rem 0.9rem;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.rcell.highlight {
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.06));
  border-color: var(--primary);
}

.rcell-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-sub);
}

.rcell-val {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text);
  line-height: 1;
}

.rcell.highlight .rcell-val {
  color: var(--primary);
}

.rcell-val.sub {
  font-size: 1.1rem;
  color: var(--text-sub);
  font-weight: 700;
}

/* 공휴일 박스 */
.holidays-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.85rem 1rem;
  margin-bottom: 1.25rem;
}

.hb-title {
  margin: 0 0 0.55rem;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-sub);
}

.holiday-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.holiday-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.4rem 0.6rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.82rem;
}

.hl-date {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color: var(--text);
  font-weight: 600;
}

.hl-name {
  color: var(--text-sub);
  font-size: 0.78rem;
}

.hb-empty {
  margin: 0.3rem 0 0;
  font-size: 0.82rem;
  color: var(--text-sub);
  font-style: italic;
}

/* 안내 박스 */
.info-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--primary);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--text-sub);
  margin-bottom: 1.5rem;
}

.info-box strong {
  color: var(--text);
}

@media (max-width: 720px) {
  .field-row { grid-template-columns: 1fr; }
  .result-grid { grid-template-columns: repeat(2, 1fr); }
  .rcell-val { font-size: 1.2rem; }
  .rcell-val.sub { font-size: 1rem; }
  .holiday-list li { flex-direction: column; align-items: flex-start; gap: 0.15rem; }
}