body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}
.centered {
    display: flex;
    justify-content: center;
    align-items: center;
    padding-top: 100px;
}
.is-hidden {
    display: none;
  }
.scheduler {
    display: flex;
    flex-wrap: wrap;
    /* Allow columns to wrap on smaller screens */
}

.day-column {
    flex: 1;
    border: 1px solid #ccc;
    padding: 20px;
    margin: 5px;
    /* Add margin between columns */
}

.time-slot {
    border: 1px solid #ccc;
    padding: 10px;
    margin: 5px;
    background-color: #f0f0f0;
}

.time-slot.selected {
    background-color: #4caf50;
    /* Selected slot background color */
    color: #fff;
    /* Selected slot text color */
}

.line-break {
    width: 100%;
}

@media (max-width: 768px) {
    .day-column {
        flex-basis: 50%;
        /* Two columns per row on screens <= 768px */
    }
}

@media (max-width: 480px) {
    .day-column {
        flex-basis: 100%;
        /* Single column on screens <= 480px */
    }
}

.block {
    display: block;
    width: 100%;
    border: none;
    background-color: #4caf50;
    padding: 14px 28px;
    font-size: 1.5em;
    text-align: center;
}