body {
    font-family: "Inter", sans-serif;
}
.cta-button {
    transition: all 0.3s ease;
}
.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1),
        0 4px 6px -2px rgba(0, 0, 0, 0.05);
}
.calendar-day {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 2.5rem;
    height: 2.5rem;
    aspect-ratio: 1 / 1;
}
.calendar-day.selected {
    background-color: #111827;
    color: white;
    border-radius: 50%;
}
.time-slot.selected {
    background-color: #111827;
    color: white;
}
.time-slot:not(.disabled):hover {
    background-color: #e5e7eb;
}
.time-slot.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background-color: #f3f4f6;
    text-decoration: line-through;
}
.loader {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #111827;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}
@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}