html {
    background-color: #f6f6f6;
    font-family: system-ui, sans-serif;
}
#audio, #title {
    margin-top: 50px;
    display: flex;
    justify-content: center;
}

/* Navbar */
a {
    text-decoration: none
}

.nav-item {
    color: blue;
    background: #8cc2ff;
    padding: 5px;
    width: 325px;
    height: 50px;
    line-height: 50px;
    font-weight: bold;
    font-size: 1em;
    text-align: center;
    border-radius: 10px;
}

.nav-item:hover {
    background: #0c78f3;
}

.nav-link:hover {
    color: #f6f6f6;
}

.navbar {
    margin-top: 20px;
}

.navbar {
    display: flex;
    flex-flow: row wrap;
    justify-content: space-evenly;
    padding: 0;
    margin: 0;
    list-style: none;
    gap: 10px;
}

.nav-link {
    display: flex;
    height: 100%;
    width: 100%;
    justify-content: center;
    color: #171717;
}

/* Collapse */
input[type='checkbox'] {
    display: none;
}

.wrap-collabsible {
    margin: 1.2rem 0;
    padding: 0 2% 0;
}

.lbl-toggle {
    display: block;
    font-weight: bold;
    font-family: monospace;
    font-size: 1.2rem;
    text-transform: uppercase;
    text-align: center;
    padding: 1rem;
    color: #DDD;
    background: #0069ff;
    cursor: pointer;
    border-radius: 7px;
    transition: all 0.25s ease-out;
}

.lbl-toggle:hover {
    color: #FFF;
}

.lbl-toggle::before {
    content: ' ';
    display: inline-block;
    border-top: 5px solid transparent;
    border-bottom: 5px solid transparent;
    border-left: 5px solid currentColor;
    vertical-align: middle;
    margin-right: .7rem;
    transform: translateY(-2px);
    transition: transform .2s ease-out;
}

.toggle:checked+.lbl-toggle::before {
    transform: rotate(90deg) translateX(-3px);
}

.collapsible-content {
    max-height: 0px;
    overflow: hidden;
    transition: max-height .25s ease-in-out;
}

.toggle:checked+.lbl-toggle+.collapsible-content {
    max-height: 100000px;
}

.toggle:checked+.lbl-toggle {
    border-bottom-right-radius: 0;
    border-bottom-left-radius: 0;
}

.collapsible-content .content-inner {
    background: rgba(0, 105, 255, .2);
    border-bottom: 1px solid rgba(0, 105, 255, .45);
    border-bottom-left-radius: 7px;
    border-bottom-right-radius: 7px;
    padding: .5rem 1rem;
}

.collapsible-content p {
    margin-bottom: 0;
}