:root {
  --bg: #ffffff; --fg: #1c2230; --muted: #5d6578; --line: #e3e6ee; --soft: #f5f7fb;
  --accent: #1f6feb; --accent-fg: #ffffff;
  --good: #176b3a; --good-bg: #e3f5ea; --warn: #8a5a00; --warn-bg: #fff2d6; --bad: #a12626; --bad-bg: #fde7e7;
  --radius: 10px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12151c; --fg: #e6e9f1; --muted: #a0a8bb; --line: #2a3040; --soft: #1a1f2a;
    --accent: #6ea4ff; --accent-fg: #0c1018;
    --good: #7fdca1; --good-bg: #173424; --warn: #f1c46b; --warn-bg: #3a2d10; --bad: #f19a9a; --bad-bg: #3d1a1a;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; min-height: 100vh; min-height: 100dvh; display: flex; flex-direction: column; background: var(--bg); color: var(--fg); font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--accent); text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }
code, pre { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .92em; }
pre { background: var(--soft); border: 1px solid var(--line); border-radius: var(--radius); padding: .8rem 1rem; overflow-x: auto; }
h1 { font-size: 1.9rem; line-height: 1.2; margin: 1.2rem 0 .6rem; }
h2 { font-size: 1.3rem; margin: 2rem 0 .6rem; }
h3 { font-size: 1.05rem; margin: 0 0 .3rem; }
h3.group { color: var(--muted); font-weight: 600; font-size: .95rem; margin: 1.2rem 0 .4rem; }
.wrap { max-width: 68rem; margin: 0 auto; padding: 0 1rem; }
.sr, .skip:not(:focus) { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip:focus { position: fixed; top: .5rem; left: .5rem; background: var(--bg); padding: .5rem .8rem; border: 2px solid var(--accent); border-radius: 6px; z-index: 10; }
.site-header { border-bottom: 1px solid var(--line); background: var(--bg); position: sticky; top: 0; z-index: 5; }
.bar { display: flex; flex-wrap: wrap; align-items: center; gap: .6rem 1.2rem; padding-top: .6rem; padding-bottom: .6rem; }
.brand { font-weight: 700; color: var(--fg); text-decoration: none; font-size: 1.1rem; }
.nav { display: flex; flex-wrap: wrap; gap: .2rem 1rem; }
.nav a { color: var(--fg); text-decoration: none; padding: .2rem 0; }
.nav a:hover { color: var(--accent); }
.search { position: relative; margin-left: auto; flex: 1 1 14rem; max-width: 22rem; }
.search input { width: 100%; padding: .5rem .8rem; border: 1px solid var(--line); border-radius: 999px; background: var(--soft); color: var(--fg); font: inherit; }
.results { position: absolute; left: 0; right: 0; top: calc(100% + .3rem); margin: 0; padding: .3rem; list-style: none; background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 8px 24px rgba(0,0,0,.15); max-height: 22rem; overflow-y: auto; }
.results a { display: block; padding: .4rem .6rem; border-radius: 6px; color: var(--fg); text-decoration: none; }
.results a:hover, .results a:focus { background: var(--soft); }
.results small { color: var(--muted); }
main { flex: 1 0 auto; width: 100%; padding-bottom: 3rem; }
.crumbs ol { display: flex; flex-wrap: wrap; gap: .2rem; list-style: none; padding: 0; margin: 1rem 0 0; font-size: .9rem; color: var(--muted); }
.crumbs li + li::before { content: "/"; margin-right: .4rem; }
.hero { padding: 1.5rem 0 .5rem; }
.hero h1 { font-size: 2.2rem; max-width: 40rem; }
.lead { font-size: 1.1rem; color: var(--muted); max-width: 46rem; }
.button { display: inline-block; padding: .55rem 1rem; border-radius: 8px; background: var(--accent); color: var(--accent-fg); text-decoration: none; font-weight: 600; border: 1px solid var(--accent); }
.button.ghost { background: transparent; color: var(--accent); }
.grid { display: grid; gap: .8rem; grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr)); }
.card { border: 1px solid var(--line); border-radius: var(--radius); padding: .8rem 1rem; background: var(--bg); }
.card p { margin: .2rem 0; }
.card h3 a { text-decoration: none; }
.meta { display: flex; flex-wrap: wrap; align-items: center; gap: .2rem .8rem; color: var(--muted); font-size: .85rem; }
.muted { color: var(--muted); }
.badge { display: inline-block; font-size: .75rem; font-weight: 600; padding: .05rem .5rem; border-radius: 999px; vertical-align: middle; }
.badge.good { color: var(--good); background: var(--good-bg); }
.badge.warn { color: var(--warn); background: var(--warn-bg); }
.badge.bad { color: var(--bad); background: var(--bad-bg); }
.tag { font-size: .75rem; color: var(--muted); border: 1px solid var(--line); border-radius: 6px; padding: 0 .35rem; text-decoration: none; }
.chips { display: flex; flex-wrap: wrap; gap: .5rem; list-style: none; padding: 0; margin: .4rem 0; }
.chips a { display: inline-block; padding: .3rem .8rem; border: 1px solid var(--line); border-radius: 999px; text-decoration: none; background: var(--soft); color: var(--fg); }
.chips a:hover { border-color: var(--accent); }
.count { color: var(--muted); font-size: .85em; }
.links { padding-left: 1.1rem; }
.links li { margin: .45rem 0; }
.links.learn { list-style: none; padding-left: 0; }
.steps { padding-left: 1.2rem; }
.steps li { margin: .5rem 0; }
.two { display: grid; gap: 2rem; grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr)); }
.glance { padding-left: 1.1rem; }
.reasons { padding-left: 1.1rem; }
.facts { display: grid; gap: .6rem 1.5rem; grid-template-columns: repeat(auto-fill, minmax(13rem, 1fr)); margin: 0; }
.facts div { border-bottom: 1px solid var(--line); padding-bottom: .4rem; }
.facts dt { color: var(--muted); font-size: .85rem; }
.facts dd { margin: 0; font-weight: 600; }
.item-head .actions { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }
.filters { display: flex; flex-wrap: wrap; gap: .6rem 1rem; margin: .6rem 0; }
.filters select, .filters input { padding: .35rem .5rem; border: 1px solid var(--line); border-radius: 6px; background: var(--bg); color: var(--fg); font: inherit; }
.table-scroll { overflow-x: auto; }
table.compare { border-collapse: collapse; width: 100%; font-size: .93rem; }
table.compare th, table.compare td { text-align: left; padding: .5rem .6rem; border-bottom: 1px solid var(--line); vertical-align: top; }
table.compare thead th { position: sticky; top: 0; background: var(--soft); white-space: nowrap; }
table.compare th[data-sort] { cursor: pointer; }
table.compare th[data-sort]::after { content: " \2195"; color: var(--muted); font-size: .8em; }
table.compare th[aria-sort="ascending"]::after { content: " \2191"; color: var(--accent); }
table.compare th[aria-sort="descending"]::after { content: " \2193"; color: var(--accent); }
button.save { font: inherit; font-size: .8rem; padding: .05rem .6rem; border: 1px solid var(--line); border-radius: 999px; background: var(--soft); color: var(--fg); cursor: pointer; }
button.save[aria-pressed="true"] { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }
details { border: 1px solid var(--line); border-radius: var(--radius); padding: .4rem .9rem; margin: .5rem 0; }
summary { cursor: pointer; font-weight: 600; }
progress { width: 12rem; vertical-align: middle; }
.site-footer { flex-shrink: 0; margin-top: 2rem; border-top: 1px solid var(--line); color: var(--muted); font-size: .9rem; padding: 1rem 0 2rem; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
@media (max-width: 40rem) { h1, .hero h1 { font-size: 1.6rem; } .search { max-width: none; margin-left: 0; } }