*, *::before, *::after { box-sizing: border-box; }
html { background: var(--color-bg); scroll-behavior: smooth; }
body { margin: 0; min-width: 20rem; background: var(--color-bg); color: var(--color-text); font-family: var(--font-body); font-size: 1rem; line-height: 1.65; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
img { display: block; max-width: 100%; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 4px; }
::selection { background: var(--color-accent); color: var(--color-on-accent); }
.skip-link { position: fixed; z-index: 100; top: 0.75rem; left: 0.75rem; padding: 0.65rem 0.9rem; transform: translateY(-160%); border: 1px solid var(--color-border-strong); border-radius: 0.55rem; background: var(--color-text); color: var(--color-bg); font-weight: 700; text-decoration: none; }
.skip-link:focus { transform: translateY(0); }
.site-shell { width: min(100% - 2rem, 72rem); margin-inline: auto; }
.site-header { border-bottom: 1px solid var(--color-border); background: var(--color-header); }
.header-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; min-height: 4.5rem; column-gap: 1rem; }
.brand, .site-nav a, .footer-nav a { text-decoration: none; }
.brand { display: inline-flex; align-items: center; min-height: 2.75rem; width: fit-content; gap: 0.65rem; color: var(--color-text); font-size: 0.93rem; font-weight: 720; letter-spacing: 0.012em; }
.brand img { width: 2rem; height: 2rem; border-radius: 22%; }
.site-nav { display: none; align-items: center; gap: 0.25rem; }
.site-nav a, .footer-nav a { display: inline-flex; align-items: center; min-height: 2.75rem; padding-inline: 0.75rem; color: var(--color-muted); font-size: 0.88rem; font-weight: 600; transition: color 160ms ease; }
.site-nav a:hover, .site-nav a[aria-current="page"], .footer-nav a:hover { color: var(--color-text); }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 2.75rem; padding: 0.65rem 1rem; border: 1px solid var(--color-border-strong); border-radius: 0.65rem; color: var(--color-text); font-size: 0.88rem; font-weight: 720; line-height: 1.2; text-align: center; text-decoration: none; transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease, transform 160ms ease; }
.button:hover { border-color: var(--color-accent); background: var(--color-surface-strong); }
.button:active { transform: translateY(1px); }
.button-primary { border-color: var(--color-accent); background: var(--color-accent); color: var(--color-on-accent); }
.button-primary:hover { border-color: var(--color-accent-strong); background: var(--color-accent-strong); color: var(--color-on-accent); }
.site-footer { margin-top: 4.5rem; border-top: 1px solid var(--color-border); }
.footer-inner { display: grid; gap: 1.5rem; padding-block: 2rem; }
.footer-brand { display: flex; align-items: center; gap: 0.75rem; }
.footer-brand img { width: 2.5rem; height: 2.5rem; border-radius: 22%; }
.footer-brand div { display: grid; line-height: 1.35; }
.footer-brand strong { font-size: 0.9rem; letter-spacing: 0.01em; }
.footer-brand span, .copyright { color: var(--color-subtle); font-size: 0.78rem; }
.footer-nav { display: flex; flex-wrap: wrap; margin-inline: -0.75rem; }
.copyright { margin: 0; }
.document-page .site-header { position: static; }
.document-shell { width: min(100% - 2rem, 46rem); margin-inline: auto; padding-block: 3.25rem 1rem; }
.document-shell h1 { max-width: 17ch; margin: 0; font-family: var(--font-display); font-size: clamp(2.15rem, 8vw, 3.4rem); font-weight: 780; letter-spacing: 0.018em; line-height: 1.02; }
.doc-meta { margin: 1rem 0 2.5rem; color: var(--color-subtle); font-size: 0.82rem; }
.document-shell h2 { margin: 2.65rem 0 0.7rem; color: var(--color-text); font-size: 1.05rem; font-weight: 760; letter-spacing: 0.012em; line-height: 1.35; }
.document-shell p, .document-shell li { color: var(--color-body); }
.document-shell p { margin: 0.7rem 0; }
.document-shell ul, .document-shell ol { margin: 0.8rem 0 1.25rem; padding-left: 1.3rem; }
.document-shell li + li { margin-top: 0.45rem; }
.document-shell a { color: var(--color-accent-strong); text-decoration-color: var(--color-link-decoration); text-underline-offset: 0.18em; }
.document-shell a:hover { text-decoration-color: currentColor; }
.callout { margin-block: 2rem 2.5rem; padding: 1rem 1.1rem; border-block: 1px solid var(--color-border-strong); background: var(--color-surface); color: var(--color-callout-text); }
.document-page .site-footer { margin-top: 3.5rem; }
@media (min-width: 42rem) { .site-shell { width: min(100% - 3rem, 72rem); } .site-nav { display: flex; } .header-inner { grid-template-columns: auto 1fr; } .site-nav { justify-self: end; } .footer-inner { grid-template-columns: 1fr auto; align-items: center; } .copyright { grid-column: 1 / -1; } .document-shell { width: min(100% - 3rem, 46rem); padding-top: 4.5rem; } }