.flatpickr-day.slot-free {
    background: #d1fae5 !important;
    color: #065f46 !important;
    border-color: #6ee7b7 !important;
}
.flatpickr-day.slot-free:hover {
    background: #a7f3d0 !important;
}
.flatpickr-day.slot-full {
    background: #fee2e2 !important;
    color: #991b1b !important;
    border-color: #fca5a5 !important;
    cursor: not-allowed !important;
    pointer-events: none !important;
    opacity: 0.85;
}
.flatpickr-day.slot-unspecified {
    background: #f3f4f6 !important;
    color: #9ca3af !important;
    cursor: not-allowed !important;
    pointer-events: none !important;
}