/* accordion */

.accordion {
    margin: 1rem auto;
}

input[type='radio'] {
    display: none;
}

input[type='radio']:checked+.acc-item .acc-title {
    color: var(--color-w);
    border-color: var(--c);
    background-color: var(--c);
}

input[type='radio']:checked+.acc-item .acc-title:after {
    transform: rotate(180deg);
}

input[type='radio']:checked+.acc-item .acc-content {
    margin-top: 20px;
    margin-bottom: 20px;
    height: auto;
    opacity: 1;
    visibility: visible;
    transition: all 0.3s ease, opacity 0.7s ease;
}

.acc-item {
    display: block;
    overflow: hidden;
}

.acc-title {
    padding: 10px;
    border-radius: 5px;
    color: var(--c);
    border: 2px solid;
    font-weight: bold;
    cursor: pointer;
    transition: all .2s ease;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.acc-title:after {
    content: '\25bc';
    display: inline-block;
    font-size: 12px;
}

.acc-content {
    width: 95%;
    margin: 0 auto;
    padding: 0 20px;
    color: var(--cb);
    border: 1px solid;
    border-width: 0 1px;
    height: 0;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s;
}