.tab-bar {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}
.tab-btn {
  padding: 0.45rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: 6px;
  background: none;
  color: var(--text-sub);
  font-size: 0.9rem;
  font-family: var(--font);
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.tab-btn.active {
  border-color: var(--blue);
  color: var(--blue);
  background: #eff6ff;
}

.month-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  gap: 0.5rem;
}
.month-selectors {
  display: flex;
  gap: 0.5rem;
  flex: 1;
  justify-content: center;
}
.month-selectors select {
  width: auto;
  padding: 0.4rem 0.6rem;
  font-size: 0.95rem;
}
.nav-btn {
  padding: 0.4rem 0.8rem;
  border: 1.5px solid var(--border);
  border-radius: 6px;
  background: none;
  color: var(--text);
  cursor: pointer;
  font-size: 1rem;
  transition: border-color 0.2s, color 0.2s;
}
.nav-btn:hover { border-color: var(--blue); color: var(--blue); }

.cal-table {
  width: 100%;
  border-collapse: collapse;
}
.cal-table th {
  padding: 0.5rem 0.25rem;
  font-size: 0.8rem;
  text-align: center;
  color: var(--text-sub);
  border-bottom: 1px solid var(--border);
}
.cal-table th.sun { color: var(--red); }
.cal-table th.sat { color: var(--blue); }
.cal-table td {
  padding: 0.2rem;
  vertical-align: top;
  border: 1px solid var(--border);
  min-width: 36px;
}
.cal-cell {
  text-align: center;
  padding: 0.25rem 0.1rem;
  min-height: 48px;
  position: relative;
}
.cal-num {
  font-size: 0.95rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.8rem;
  height: 1.8rem;
  border-radius: 50%;
}
.cal-holiday-name {
  font-size: 0.6rem;
  line-height: 1.2;
  margin-top: 0.1rem;
  word-break: break-all;
  color: var(--red);
}
.is-today .cal-num {
  background: var(--blue);
  color: #fff !important;
}
.is-sunday .cal-num { color: var(--red); }
.is-saturday .cal-num { color: #0ea5e9; }
.is-holiday .cal-num { color: var(--red); }

.yearly-list-item {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}
.yearly-list-item:last-child { border-bottom: none; }
.yearly-date {
  width: 5.5rem;
  flex-shrink: 0;
  color: var(--text-sub);
  font-size: 0.875rem;
}
.yearly-holiday-name { font-weight: 500; }
.yearly-dow-sun { color: var(--red); }
.yearly-dow-sat { color: #0ea5e9; }
.yearly-substitute { font-size: 0.8rem; color: var(--text-sub); margin-left: 0.5rem; }

.check-result {
  margin-top: 1rem;
  padding: 1rem;
  border-radius: var(--radius);
  font-size: 1rem;
  display: none;
}
.check-result.is-holiday {
  background: #fee2e2;
  color: #991b1b;
  display: block;
}
.check-result.not-holiday {
  background: #f0fdf4;
  color: #166534;
  display: block;
}
.check-result-name {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

html[data-theme="dark"] .tab-btn.active {
  background: #1e3a5f;
}
html[data-theme="dark"] .check-result.is-holiday {
  background: #450a0a;
  color: #fca5a5;
}
html[data-theme="dark"] .check-result.not-holiday {
  background: #052e16;
  color: #86efac;
}