/* Late Landing: shared styles. The checker page adds its own form and result styles inline. */
@font-face { font-family: 'IBM Plex Sans'; font-weight: 400; font-style: normal; font-display: swap; src: url(/fonts/ibm-plex-sans-latin-400-normal.woff2) format('woff2'); }
@font-face { font-family: 'IBM Plex Sans'; font-weight: 500; font-style: normal; font-display: swap; src: url(/fonts/ibm-plex-sans-latin-500-normal.woff2) format('woff2'); }
@font-face { font-family: 'IBM Plex Sans'; font-weight: 600; font-style: normal; font-display: swap; src: url(/fonts/ibm-plex-sans-latin-600-normal.woff2) format('woff2'); }
@font-face { font-family: 'Barlow Condensed'; font-weight: 600; font-style: normal; font-display: swap; src: url(/fonts/barlow-condensed-latin-600-normal.woff2) format('woff2'); }
@font-face { font-family: 'Barlow Condensed'; font-weight: 700; font-style: normal; font-display: swap; src: url(/fonts/barlow-condensed-latin-700-normal.woff2) format('woff2'); }
@font-face { font-family: 'IBM Plex Mono'; font-weight: 500; font-style: normal; font-display: swap; src: url(/fonts/ibm-plex-mono-latin-500-normal.woff2) format('woff2'); }
@font-face { font-family: 'IBM Plex Mono'; font-weight: 600; font-style: normal; font-display: swap; src: url(/fonts/ibm-plex-mono-latin-600-normal.woff2) format('woff2'); }

:root {
  --bg: #EDF1F4; --surface: #FFFFFF; --ink: #0C1822; --muted: #526270; --line: #CBD5DD;
  --stub: #0C1822; --on-stub: #F2F6F9; --signal: #FFC20E; --on-signal: #0C1822; --focus: #0B63CE;
  --neutral-bg: #E3E9EE;
  --display: 'Barlow Condensed', 'Arial Narrow', 'Helvetica Neue', Arial, sans-serif;
  --body: 'IBM Plex Sans', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0A1118; --surface: #121C26; --ink: #E8EEF2; --muted: #94A5B3; --line: #26343F;
    --stub: #1B2A37; --focus: #6CB2FF; --neutral-bg: #1D2A35; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0A1118; --surface: #121C26; --ink: #E8EEF2; --muted: #94A5B3; --line: #26343F;
  --stub: #1B2A37; --focus: #6CB2FF; --neutral-bg: #1D2A35; color-scheme: dark;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink); font-family: var(--body); font-size: 16px; line-height: 1.55;
  padding: 0 max(16px, env(safe-area-inset-right, 0px)) 0 max(16px, env(safe-area-inset-left, 0px));
}
a { color: var(--focus); text-underline-offset: 2px; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.skip { position: absolute; left: -9999px; top: 8px; background: var(--signal); color: var(--on-signal); padding: 10px 14px; border-radius: 6px; font-weight: 600; z-index: 10; }
.skip:focus { left: 16px; }
.wrap { max-width: 680px; margin: 0 auto; }

/* Site header */
header.site { max-width: 1040px; margin: 0 auto; padding: 14px 0; border-bottom: 1px solid var(--line); }
header.site .bar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 20px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font: 700 24px/1 var(--display); text-transform: uppercase; letter-spacing: .02em; min-height: 44px; }
header.site nav ul { display: flex; flex-wrap: wrap; gap: 0 18px; margin: 0; padding: 0; list-style: none; }
header.site nav a { display: inline-flex; align-items: center; min-height: 44px; color: var(--ink); text-decoration: none; font-weight: 500; font-size: 15px; border-bottom: 2px solid transparent; }
header.site nav a:hover { border-bottom-color: var(--line); }
header.site nav a[aria-current="page"] { border-bottom-color: var(--signal); font-weight: 600; }

/* Prose pages */
.prose { padding: 8px 0 32px; }
.crumbs ol { display: flex; flex-wrap: wrap; gap: 4px 0; margin: 16px 0 0; padding: 0; list-style: none; font-size: 14px; color: var(--muted); }
.crumbs li + li::before { content: "›"; padding: 0 8px; }
.crumbs a { color: var(--muted); }
.prose h1 { font: 700 clamp(2rem, 7vw, 3rem)/1 var(--display); text-transform: uppercase; letter-spacing: .005em; margin: 16px 0 12px; text-wrap: balance; }
.prose h2 { font: 700 26px/1.1 var(--display); text-transform: uppercase; letter-spacing: .02em; margin: 36px 0 10px; }
.prose h3 { font-size: 18px; margin: 24px 0 8px; }
.prose p, .prose li { max-width: 66ch; }
.prose ul, .prose ol { padding-left: 1.2em; }
.prose li { margin: 6px 0; }
.lede { font-size: 18px; color: var(--muted); margin: 0 0 8px; }
.stamp { font: 500 13px/1.4 var(--mono); letter-spacing: .04em; text-transform: uppercase; color: var(--muted); margin: 0 0 24px; }
.inshort { background: var(--surface); border: 1px solid var(--line); border-left: 6px solid var(--signal); border-radius: 10px; padding: 4px 20px 8px; }
.inshort h2 { margin-top: 14px; font-size: 20px; }
.callout { background: var(--neutral-bg); border-radius: 8px; padding: 4px 16px; }
.tablewrap { overflow-x: auto; margin: 12px 0 16px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); }
table { border-collapse: collapse; width: 100%; font-size: 15px; }
caption { text-align: left; font-weight: 600; padding: 12px 14px 4px; }
th, td { text-align: left; vertical-align: top; padding: 10px 14px; border-top: 1px solid var(--line); }
thead th { border-top: 0; font-size: 13px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); font-weight: 600; }
td.num { font: 600 16px var(--mono); white-space: nowrap; }
.cta { margin: 36px 0 8px; background: var(--stub); color: var(--on-stub); border-radius: 10px; padding: 20px; display: grid; gap: 8px; justify-items: start; }
.cta p { margin: 0; }
.ctah { font: 700 24px/1.1 var(--display); text-transform: uppercase; letter-spacing: .02em; }
a.primary { display: inline-flex; align-items: center; justify-content: center; text-align: center; min-height: 48px; padding: 12px 22px;
  background: var(--signal); color: var(--on-signal); border-radius: 6px; font: 700 17px var(--body); text-decoration: none; }
a.primary:hover { filter: brightness(.95); }
.sources, .related { margin-top: 32px; font-size: 15px; }
.sources h2, .related h2 { font-size: 20px; }
.cards { list-style: none; padding: 0 !important; display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 12px; margin: 12px 0 0; }
.cards li { margin: 0; max-width: none; }
.card { display: grid; gap: 4px; height: 100%; padding: 14px 16px; background: var(--surface); border: 1px solid var(--line); border-radius: 10px; color: var(--ink); text-decoration: none; }
.card:hover { border-color: var(--ink); }
.card .ct { font-weight: 600; color: var(--focus); text-decoration: underline; text-underline-offset: 2px; }
.card .cd { font-size: 14px; color: var(--muted); }

/* Home page extras */
.explain { margin-top: 36px; }
.explain h2 { font: 700 26px/1.1 var(--display); text-transform: uppercase; letter-spacing: .02em; margin: 28px 0 10px; }
.steps { padding-left: 1.3em; display: grid; gap: 10px; margin: 0; }
.srcnote { margin-top: 32px; font-size: 13px; color: var(--muted); display: grid; gap: 8px; }
.srcnote p { margin: 0; }
.adlabel { font-size: 13px !important; }

/* Site footer */
footer.site { max-width: 1040px; margin: 40px auto 0; padding: 24px 0 40px; border-top: 1px solid var(--line); font-size: 14px; color: var(--muted); }
footer.site .cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px 32px; margin-bottom: 16px; }
footer.site .fh { font-weight: 600; color: var(--ink); margin: 0 0 4px; }
footer.site ul { list-style: none; padding: 0; margin: 0; }
footer.site li a { display: inline-flex; align-items: center; min-height: 40px; }
footer.site p { max-width: 80ch; }
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; transition: none !important; } }
@media print { header.site nav, footer.site .cols, .cta, .related, .skip { display: none; } body { background: #fff; } }