:root {
  color-scheme: light dark;
  --bg: #ffffff; --fg: #1a1a1a; --muted: #4d4d4d; --border: #8a8a8a; --card: #f6f6f8; --accent: #0b4fc2; --accent-fg: #ffffff; --focus: #0b4fc2;
  --radius: 10px; --gutter: 16px;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #121212; --fg: #f0f0f0; --muted: #c2c2c2; --border: #8d8d8d; --card: #1e1e22; --accent: #8ab4ff; --accent-fg: #0a0a0a; --focus: #8ab4ff; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
main, .site-header, .site-footer { max-width: 760px; margin: 0 auto; padding: 0 var(--gutter); }
.site-header { display: flex; flex-wrap: wrap; gap: 8px 20px; align-items: center; padding-top: 12px; padding-bottom: 12px; border-bottom: 1px solid var(--border); }
.brand { font-weight: 700; color: var(--fg); text-decoration: none; }
.main-nav { display: flex; flex-wrap: wrap; gap: 4px 16px; }
a { color: var(--accent); }
.main-nav a, .site-footer a { display: inline-block; padding: 10px 2px; min-height: 44px; }
a[aria-current="page"] { font-weight: 700; }
.skip { position: absolute; left: -999px; } .skip:focus { left: 8px; top: 8px; background: var(--bg); padding: 8px; z-index: 10; }
h1 { font-size: 1.9rem; line-height: 1.2; margin: 1rem 0 .5rem; }
h2 { font-size: 1.3rem; margin: 1.6rem 0 .5rem; } h3 { font-size: 1.05rem; margin: 1rem 0 .25rem; }
.lead { font-size: 1.08rem; }
.muted { color: var(--muted); }
.crumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; padding: 0; margin: 10px 0 0; font-size: .9rem; }
.crumbs li + li::before { content: "›"; margin-right: 6px; color: var(--muted); }
.tool { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: var(--gutter); margin: 1rem 0; }
label { display: block; font-weight: 600; margin: .6rem 0 .25rem; }
label.check { display: flex; gap: 8px; align-items: center; min-height: 44px; }
textarea, input[type="search"], input[type="number"], select { width: 100%; font: inherit; font-size: 16px; padding: 10px; color: var(--fg); background: var(--bg); border: 1px solid var(--border); border-radius: 8px; min-height: 44px; }
textarea.one-line { min-height: 48px; resize: vertical; }
button { font: inherit; font-size: 16px; min-width: 44px; min-height: 44px; padding: 8px 14px; border-radius: 8px; border: 1px solid var(--border); background: var(--bg); color: var(--fg); cursor: pointer; }
button.copy-btn { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); font-weight: 600; }
button[aria-pressed="true"] { outline: 2px solid var(--accent); }
.star-btn { font-size: 20px; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: .5rem 0; }
.row label { margin: 0; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: .5rem 0; }
.status { min-height: 1.5em; font-weight: 600; }
.opts { border: 1px solid var(--border); border-radius: 8px; margin: .75rem 0; padding: .5rem var(--gutter) var(--gutter); }
.cards { list-style: none; padding: 0; margin: .75rem 0 0; display: grid; gap: 10px; }
.cards li { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px; min-width: 0; }
.cards li[hidden] { display: none; }
.card-head { display: flex; flex-direction: column; gap: 2px; }
.style-name { font-weight: 700; } .style-desc { color: var(--muted); font-size: .9rem; }
.preview { min-height: 1.8em; contain: content; white-space: pre-wrap; overflow-wrap: anywhere; font-size: 1.15rem; margin: .5rem 0; max-height: 14em; overflow: auto; }
.coverage-note { display: block; color: var(--muted); font-size: .85rem; }
.card-actions { display: flex; gap: 8px; margin-top: 8px; }
.table-wrap { overflow-x: auto; }
table.examples { border-collapse: collapse; width: 100%; font-size: .95rem; }
.examples th, .examples td { border: 1px solid var(--border); padding: 6px 8px; text-align: left; vertical-align: top; overflow-wrap: anywhere; }
.related { list-style: none; padding: 0; display: grid; gap: 8px; }
.related li { display: flex; flex-direction: column; border: 1px solid var(--border); border-radius: var(--radius); padding: 10px 12px; }
.related span { color: var(--muted); font-size: .92rem; }
.site-footer { border-top: 1px solid var(--border); margin-top: 2rem; padding-top: 12px; padding-bottom: 24px; }
.site-footer nav { display: flex; gap: 16px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
@media (min-width: 640px) { .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; scroll-behavior: auto !important; } }