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

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

body {
    margin: 0;
    min-height: 100vh;
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: var(--leading);
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, p, ul, ol, dl, dd, figure {
    margin: 0;
}

h1 {
    font-size: var(--text-xl);
    font-weight: var(--weight-semibold);
    line-height: var(--leading-tight);
    letter-spacing: -0.01em;
}

h2 {
    font-size: var(--text-lg);
    font-weight: var(--weight-semibold);
    line-height: var(--leading-tight);
}

h3 {
    font-size: var(--text-base);
    font-weight: var(--weight-semibold);
}

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

a {
    color: var(--color-link);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

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

button {
    cursor: pointer;
}

button:disabled {
    cursor: not-allowed;
}

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

table {
    border-collapse: collapse;
}

code, kbd, samp, .mono {
    font-family: var(--font-mono);
    font-size: 0.92em;
}

kbd {
    padding: 0 4px;
    border: var(--border-width) solid var(--color-border-strong);
    border-radius: 3px;
    background: var(--color-surface-sunken);
    font-size: var(--text-xs);
}

::selection {
    background: var(--color-primary-soft);
}

:focus-visible {
    outline: 2px solid var(--color-focus);
    outline-offset: 2px;
}

h1[tabindex="-1"]:focus,
main[tabindex="-1"]:focus {
    outline: none;
}

[hidden] {
    display: none !important;
}

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

.skip-link {
    position: absolute;
    top: var(--sp-2);
    left: var(--sp-2);
    z-index: var(--z-toast);
    padding: var(--sp-2) var(--sp-3);
    border-radius: var(--radius-control);
    background: var(--color-primary);
    color: var(--color-primary-contrast);
    transform: translateY(-200%);
}

.skip-link:focus {
    transform: none;
}

.muted {
    color: var(--color-text-muted);
}

.num {
    font-variant-numeric: tabular-nums;
    text-align: end;
}

.overline {
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.stack {
    display: flex;
    flex-direction: column;
    gap: var(--stack-gap, var(--sp-3));
}

.cluster {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--cluster-gap, var(--sp-2));
}

.grow {
    flex: 1 1 auto;
    min-width: 0;
}

.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}