/* reset */
*,
*::after,
*::before {
    box-sizing: border-box;
}

* {
    font: inherit;
    margin: 0;
    padding: 0;
    border: 0;
}

body {
    background-color: hsl(0, 0%, 100%);
    font-family: 'Open Sans', helvetica, arial, sans-serif;
    color: hsl(0, 0%, 20%);
    font-size: 1rem;
}

h1,
h2,
h3,
h4 {
    line-height: 1.2;
    color: hsl(0, 0%, 6.67%);
    font-weight: 700;
}

h1 {
    font-size: 3.5rem;
    line-height: 4rem;
    letter-spacing: -0.09375rem;
}

h2 {
    font-size: 1.25rem;
    line-height: 1.75rem;
}

h3 {
    font-size: 1.25rem;
}

h4 {
    font-size: 1.2rem;
}

p {
    font-size: 18px;
    line-height: 26px;
    letter-spacing: 0;
    font-weight: 400;
    padding-top: 10px;
    padding-bottom: 28px;
}

ol,
ul,
menu {
    list-style: none;
}

button,
input,
textarea,
select {
    background-color: transparent;
    border-radius: 0;
    color: inherit;
    line-height: inherit;
    appearance: none;
}

textarea {
    resize: vertical;
    overflow: auto;
    vertical-align: top;
}

a {
    color: #1d9691;
    font-weight: 700;
}

table {
    border-collapse: collapse;
    border-spacing: 0;
}

img,
video,
svg {
    display: block;
    max-width: 100%;
}

@media (min-width: 64rem) {
    body {
        font-size: 1.25rem;
    }

    h1 {
        font-size: 3.5rem;
    }

    h2 {
        font-size: 1.25rem;
        line-height: 1.75rem;
    }

    h3 {
        font-size: 1.75rem;
    }

    h4 {
        font-size: 1.5625rem;
    }
}