* {
    box-sizing: border-box;
    margin: 0;
    outline: 0;
    padding: 0;
}

html {
    font: 300 12px 'Roboto', sans-serif;
}

.content {
    background: var(--default-background);
    color: var(--default-text);
    min-height: 100vh;
    overflow: auto;
    padding: 5rem 2rem;
    text-align: center;
    z-index: 1;
}

a {
    border-bottom: 2px solid transparent;
    color: var(--default-link);
    text-decoration: none;
    transition: border-bottom 0.2s;
}

a:hover {
    border-bottom: 2px solid var(--default-link);
}

h1, h2, h3 {
    color: var(--default-headline);
}

h1::after {
    background-color: var(--default-divider);
}

h1 {
    font: bold 4rem 'Roboto Condensed', sans-serif;
    letter-spacing: -0.05rem;
    margin: 0 0 4.5rem 0;
    text-align: center;
}

h1::after {
    content: "";
    display: block;
    width: 10rem;
    height: 3px;
    margin: 2rem auto 0;
}

h2 {
    font: bold 2.1rem 'Roboto Condensed', sans-serif;
    margin: 0 0 1.5rem 0;
    text-transform: uppercase;
}

h3 {
    font: bold 1.5rem 'Roboto Condensed', sans-serif;
    margin: 2.5rem 0 0.5rem;
    text-transform: uppercase;
}

h1 a, h2 a, h3 a {
    border-bottom: 0 !important;
    color: var(--default-headline);
}

p, div.p {
    font-size: 1.5rem;
    line-height: 2.25rem;
}

span.check::before {
    content: "\2714";
}

span.x::before {
    content: "\2718";
}

span.plus::before {
    content: "\271a";
}

strong {
    font-weight: bold;
}

@media (min-width: 768px) {
    html {
        font-size: 14px;
    }

    .content {
        padding: 5rem 4%;
    }
}

@media (min-width: 1025px) {
    html {
        font-size: 16px;
    }
}

a.interactive {
    background: var(--form-button-background);
    box-shadow: 5px 5px 1px var(--form-button-shadow);
    color: var(--form-button-text);
    display: inline-block;
    border-bottom: none;
    margin-bottom: 5px;
    padding: 0 5px;
    position: relative;
}

a.interactive:active {
    left: 2px;
    top: 2px;
}

/* collapse sections */
.collapse_section {
    text-align: left;
    background-color: var(--table-background);
    border: 1px solid var(--default-shadow);
    border-radius: 2px;
    color: var(--table-text);
    margin-bottom: 0.5em;
    padding: 0.5em;
}

.collapse_section h2 {
    cursor: pointer;
    user-select: none;
}

.collapse_section:not(.open) h2 {
    margin-bottom: 0;
}

.collapse_section h2::before {
    content: '▶';
    display: inline-block;
    font-size: 0.5em;
    vertical-align: middle;
    width: 2em;
}

.collapse_section.open h2::before {
    content: '▼';
}

.collapse_section:not(.open) > :not(h2) {
    display: none;
}