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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--color-background);
    color: var(--color-text);
    font-family: var(--font-sans);
    line-height: 1.8;
}

img {
    display: block;
    max-width: 100%;
    height: auto;
}

a {
    color: inherit;
    text-decoration: none;
}

a:hover {
    opacity: .65;
    transition: opacity .25s ease;
}

a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--color-heading);
    outline-offset: 3px;
}

/* Skip link for keyboard/screen-reader users */
.skip-link {
    position: absolute;
    top: -999px;
    left: 0;
    z-index: 999999;
    padding: var(--space-2) var(--space-3);
    background: var(--color-background);
    color: var(--color-heading);
}

.skip-link:focus {
    top: 0;
}