/* Reset + base element defaults. */

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

* {
    margin: 0;
}

html {
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    background: var(--color-paper);
    color: var(--color-text);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    min-height: 100vh;
    overflow-x: hidden;
}

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

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

ul, ol {
    list-style: none;
    padding: 0;
}

button, input, textarea, select {
    font: inherit;
    color: inherit;
}

button {
    background: none;
    border: 0;
    cursor: pointer;
}

address {
    font-style: normal;
}

/* ---------- Focus & accessibility ---------- */

:focus-visible {
    outline: 2px solid var(--color-accent-600);
    outline-offset: 2px;
    border-radius: var(--radius-xs);
}

.site-header :focus-visible,
.site-footer--dark :focus-visible {
    outline-color: var(--color-accent-tint);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.skip-link {
    position: absolute;
    top: -100%;
    left: var(--space-4);
    z-index: var(--z-modal);
    background: var(--color-ink-900);
    color: var(--color-text-inverse);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-sm);
    transition: top var(--duration-base) var(--ease-out);
}

.skip-link:focus {
    top: var(--space-4);
}

::selection {
    background: var(--color-accent-tint-soft);
    color: var(--color-ink-900);
}

/* ---------- Motion preference ---------- */

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    *, *::before, *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        scroll-behavior: auto !important;
    }
}