* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; line-height: 1.55; background: var(--paper); color: var(--ink); font-size: var(--text-body); }
body { margin: 0; min-height: 100vh; display: flex; flex-direction: column; }
a { color: var(--accent); text-underline-offset: .2em; }
:focus-visible { outline: var(--focus-ring); outline-offset: 3px; }
button, input, select, textarea { font: inherit; max-width: 100%; }
button, .button, input, select, textarea { padding: .6rem .8rem; border-radius: .4rem; border: 1px solid var(--line); background: var(--panel); color: var(--ink); }
button, .button { cursor: pointer; font-weight: 600; text-decoration: none; display: inline-block; }
button:hover, .button:hover { background: var(--notice); }
button:disabled { color: var(--muted); cursor: not-allowed; }
.button-primary { background: var(--accent); color: var(--accent-ink); }
input[type=search], textarea { width: min(34rem, 100%); }
label { display: block; font-weight: 600; margin-block: .8rem .3rem; }
main { width: min(78rem, 100%); margin-inline: auto; padding: clamp(1rem, 3vw, 2.5rem); flex: 1; min-width: 0; }
main:focus { outline: none; }
h1, h2, h3 { line-height: 1.2; text-wrap: balance; }
h1 { font-size: var(--text-title); margin-top: 0; letter-spacing: -.035em; }
h2 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); }
p { max-width: 70ch; }
.lede { font-size: var(--text-lead); max-width: 65ch; }
.muted, .timing { color: var(--muted); }
figure { margin: 0; min-width: 0; }
img, canvas, svg { max-width: 100%; }
code, dd, td, th { overflow-wrap: anywhere; }
pre { overflow: auto; max-width: 100%; }
.prose { max-width: 70ch; }
ul, ol { padding-left: 1.3rem; }
.skip-link { position: absolute; left: -9999px; top: .5rem; background: var(--panel); padding: .5rem 1rem; z-index: 20; }
.skip-link:focus { left: .5rem; }
.site-header { display: flex; align-items: center; gap: 2rem; padding: 1rem clamp(1rem, 4vw, 3rem); border-bottom: 1px solid var(--line); background: var(--paper); }
.brand { font-weight: 800; font-size: 1.5rem; letter-spacing: -.06em; text-decoration: none; color: var(--ink); }
.site-header nav { display: flex; align-items: center; gap: 1.6rem; }
.site-header nav a { color: var(--ink); text-decoration: none; font-size: .95rem; }
.site-header nav a[aria-current=page] { text-decoration: underline; text-underline-offset: .45em; }
.header-account { margin-left: auto; }
.menu-toggle { display: none; }
.site-footer { border-top: 1px solid var(--line); padding: 1.5rem clamp(1rem, 4vw, 3rem); color: var(--muted); font-size: var(--text-small); }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 1rem 1.5rem; }
.site-footer a { color: var(--muted); }
.preview-banner { display: flex; align-items: center; justify-content: center; gap: 1rem; padding: .35rem 1rem; font-size: var(--text-small); background: var(--notice); }
.preview-banner button { font-size: inherit; padding: .15rem .5rem; background: transparent; }
.inspector-canvases { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 17rem), 1fr)); gap: 1rem; margin-block: 1.5rem; }
.panel, .step { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.25rem; min-width: 0; }
.step { margin-block: 1.5rem; }
.facts { display: grid; grid-template-columns: minmax(0, max-content) minmax(0, 1fr); gap: .35rem 1.5rem; }
.facts dt { font-weight: 600; }
.facts dd { margin: 0; }
.data-table { width: 100%; border-collapse: collapse; margin-block: 1rem; display: block; overflow-x: auto; font-variant-numeric: tabular-nums; }
.data-table caption { text-align: left; font-weight: 600; padding-block: .5rem; }
.data-table td, .data-table th { border-bottom: 1px solid var(--line); padding: .7rem; text-align: left; vertical-align: top; }
.group-row th { background: var(--notice); }
.pairing { margin-block: 1rem; }
.pattern-page { position: fixed; inset: 0; display: grid; place-items: center; background: #000000; overflow: hidden; }
.pattern-page canvas { max-width: 100vw; max-height: 100vh; object-fit: contain; }
.pattern-page .error { position: fixed; inset-block-end: 1rem; inset-inline: 1rem; background: #000000; }
@media (max-width: 44rem) {
  .site-header { gap: .75rem; flex-wrap: wrap; padding: .8rem 1rem; }
  .menu-toggle { display: inline-block; }
  .header-account { margin-left: auto; }
  .site-header nav { display: none; flex-basis: 100%; order: 3; gap: .5rem; }
  .site-header nav.menu-open { display: flex; flex-direction: column; align-items: stretch; }
  .site-header nav a { padding: .6rem; }
  .facts { grid-template-columns: minmax(0, 1fr); }
  .facts dd { margin-bottom: .6rem; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation: none !important; transition: none !important; }
}