.abs-booking-form {
    max-width: 600px;
    margin: 2em auto;
    padding: 2em;
    border: 1px solid #ddd;
    border-radius: 5px;
    background: #f9f9f9;
    font-family: sans-serif;
}

.abs-step {
    display: none;
}

.abs-step.active-step {
    display: block;
}

.abs-booking-form h3 {
    margin-top: 0;
    color: #333;
}

.abs-booking-form p {
    margin-bottom: 1em;
}

.abs-booking-form label {
    display: block;
    margin-bottom: .5em;
    font-weight: bold;
    color: #555;
}

.abs-booking-form select,
.abs-booking-form input[type="text"],
.abs-booking-form input[type="email"],
.abs-booking-form input[type="tel"],
.abs-booking-form input[type="date"],
.abs-booking-form textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}

.abs-navigation-buttons {
    margin-top: 2em;
    display: flex;
    justify-content: space-between;
}

.abs-navigation-buttons button {
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1em;
}

#abs-prev-step {
    background-color: #6c757d;
    color: white;
}

#abs-next-step, #abs-submit-booking {
    background-color: #007bff;
    color: white;
}

.abs-time-slots {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 10px;
}

.abs-time-slot {
    padding: 10px;
    border: 1px solid #007bff;
    background-color: #fff;
    color: #007bff;
    border-radius: 4px;
    text-align: center;
    cursor: pointer;
    transition: background-color 0.3s, color 0.3s;
}

.abs-time-slot.selected, .abs-time-slot:hover {
    background-color: #007bff;
    color: #fff;
}

/* Wrapper-based visibility for time slots vs loader */
#abs-time-slots-container.is-loading #abs-slots-loader {
    display: block;
}
#abs-time-slots-container.is-loading #abs-available-slots {
    display: none;
}
#abs-time-slots-container:not(.is-loading) #abs-slots-loader {
    display: none;
}
#abs-time-slots-container:not(.is-loading) #abs-available-slots {
    display: block;
}

#abs-form-messages {
    padding: 1em;
    margin-bottom: 1em;
    border-radius: 4px;
    display: none; /* Hidden by default */
}

#abs-form-messages.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
    display: block;
}

#abs-form-messages.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    display: block;
}

/* Spinner for loading states */
.abs-loader {
    display: none; /* Hidden by default */
    border: 4px solid #f3f3f3; 
    border-top: 4px solid #007bff; 
    border-radius: 50%;
    width: 24px;
    height: 24px;
    animation: spin 1s linear infinite;
    margin: 10px auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}