* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--canvas); color: var(--ink); font: 16px/1.45 Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
body.locked { overflow: hidden; }
button, input, textarea, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { color: inherit; }
a { color: var(--brand-dark); }
img { display: block; max-width: 100%; }
:focus-visible { outline: 3px solid #81b9ff; outline-offset: 3px; }
.container { width: min(calc(100% - 32px), var(--max)); margin-inline: auto; }
.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: fixed; z-index: var(--z-toast); top: 8px; left: 8px; transform: translateY(-150%); background: #fff; padding: 12px; border-radius: 8px; }
.skip-link:focus { transform: none; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(1.8rem, 5vw, 3.7rem); letter-spacing: -.05em; line-height: 1.02; }
h2 { font-size: clamp(1.35rem, 3vw, 2.1rem); letter-spacing: -.035em; }
.muted { color: var(--muted); }
.section { margin-block: 32px 56px; }