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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 90px;
}

body {
    margin: 0;
    background-color: var(--color-background);
    color: var(--color-text);
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

body.menu-is-open {
    overflow: hidden;
}

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

button {
    color: inherit;
    font: inherit;
}

.skip-link {
    position: fixed;
    z-index: 200;
    top: 12px;
    left: 12px;
    padding: 12px 16px;
    background: var(--color-text);
    color: var(--color-background);
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: .08em;
    transform: translateY(-150%);
    transition: transform 200ms ease;
}

.skip-link:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
    transform: translateY(0);
}

.site-main {
    margin-left: var(--side-rail-width);
}

.section {
    width: 100%;
    max-width: var(--content-width);
    margin-right: auto;
    margin-left: auto;
    padding-right: var(--gutter);
    padding-left: var(--gutter);
}

.section[id] {
    scroll-margin-top: 90px;
}

.section[id]:focus {
    outline: none;
}

.section-kicker {
    color: var(--color-muted);
    font-family: var(--font-mono);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.14em;
}

.section-title {
    max-width: 15ch;
    margin: 0;
    font-family: var(--font-serif);
    font-size: clamp(50px, 6.5vw, 96px);
    font-weight: 400;
    line-height: 0.98;
    letter-spacing: -0.03em;
}

.button {
    display: inline-flex;
    gap: 12px;
    align-items: center;
    justify-content: center;
    padding: 14px 22px;
    border: 1px solid transparent;
    border-radius: 999px;
    font-size: 13px;
    transition:
        color 300ms ease,
        background 300ms ease,
        border-color 300ms ease,
        transform 300ms ease;
}

.button--primary {
    background: var(--color-text);
    color: var(--color-background);
}

.button--primary:hover {
    background: var(--color-accent);
    transform: translateY(-2px);
}

.button--outline {
    border-color: var(--color-border);
}

.button--outline:hover {
    border-color: var(--color-text);
}