:root {
    --grey: #011e39;
    --grey-0: rgba(1, 30, 57, 0.0);
    --grey-5: rgba(1, 30, 57, 0.05);
    --grey-10: rgba(1, 30, 57, 0.1);
    --grey-15: rgba(1, 30, 57, 0.15);
    --grey-30: rgba(1, 30, 57, 0.3);
    --grey-60: rgba(1, 30, 57, 0.6);
    --grey-bg: #FAFBFB;

    --red: #C00;
    --red-hover: #A00;
    --green: #1EAE00;

    --box-shadow: 0 0 27px 0 var(--grey-5), 0 17px 28px -12px var(--grey-15);
}

*, *::before, *::after {
	box-sizing: inherit;
    font-family: inherit;
}

body {
    box-sizing: border-box;
    font-family: arial, helvetica, sans-serif;

    margin: 0;
    color: var(--grey);
    background-color: var(--grey-bg);
}

main {
    max-width: 920px;
    margin: 0 auto;
    padding: 0 8px;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;

    padding: 16px;

    background: #FFF;
    box-shadow: 0 8px 30px -12px var(--grey-10), 0 0 2px 0 var(--grey-10);

    & a { line-height: 0; }
}

hr {
    border: 0;
    margin: 0;
    height: 1px;
    background: linear-gradient(90deg, var(--grey-10) 0%, var(--grey-0) 100%);

    &.central {
        background: linear-gradient(90deg, var(--grey-0) 0%, var(--grey-10) 50%, var(--grey-0) 100%);
    }
}

a {
    text-decoration: none;
    color: var(--red);
    transition: color 300ms;

    &:hover {
        color: var(--red-hover);
        text-decoration: underline;
    }
}

footer {
    text-align: center;
    & ul {
        margin: 64px 0 24px;
        padding: 0;
        display: flex;
        justify-content: center;
        list-style-type: none;

        & li + li { margin-left: 32px; }
    }

    & p {
        margin: 0 0 64px;
        color: var(--grey-60);
    }

    @media (max-width: 799px) {
        & ul {
            flex-direction: column;
            gap: 16px;
            & li + li { margin-left: 0; }
        }
        & p { margin-bottom: 44px; }
    }
}

/* FONTS */
h1 {
    font-size: 48px;
    @media (max-width: 799px) {
        font-size: 36px;
        line-height: 40px;
    }
}
h2 {
    font-size: 20px;
}
h3 {
    font-size: 36px;
}

.text-12 {
    font-size: 12px;
}

.text-14 {
    font-size: 14px;
    line-height: 22px;
}

.text-16 {
    font-size: 16px;
    line-height: 24px;
}

.text-18 {
    font-size: 18px;
    line-height: 24px;
}