body {
  font-family: 'Noto Sans JP', sans-serif;
}

.slot-btn {
  position: relative;
  padding: 10px 16px;
  border-radius: 12px;
  border: 2px solid #e5e7eb;
  background: #fff;
  color: #374151;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: all .15s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  -webkit-tap-highlight-color: transparent;
}
.slot-btn:hover { border-color: #a5b4fc; }
.slot-btn:disabled { opacity: .5; cursor: not-allowed; }
.slot-btn.selected {
  background: #4f46e5;
  border-color: #4f46e5;
  color: #fff;
}
.slot-btn .count-badge {
  font-size: 11px;
  background: rgba(0,0,0,.08);
  border-radius: 999px;
  padding: 2px 8px;
}
.slot-btn.selected .count-badge {
  background: rgba(255,255,255,.25);
}

.day-toggle {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 2px solid #e5e7eb;
  background: #fff;
  color: #6b7280;
  font-weight: 700;
  cursor: pointer;
  transition: all .15s ease;
}
.day-toggle.active {
  background: #4f46e5;
  border-color: #4f46e5;
  color: #fff;
}

#slotSection.disabled {
  opacity: .35;
  pointer-events: none;
}

.fade-in { animation: fadeIn .25s ease; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.matrix-cell {
  min-width: 60px;
  text-align: center;
  padding: 8px 6px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: transform .1s ease;
}
.matrix-cell:hover { transform: scale(1.05); }
.matrix-cell.full { background: #d1fae5; color: #065f46; }
.matrix-cell.partial { background: #fef3c7; color: #92400e; }
.matrix-cell.empty { background: #f3f4f6; color: #9ca3af; }

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-thumb { background: #c7d2fe; border-radius: 4px; }