:root {
  --ink: #1d1d1f;
  --muted: #6e6e73;
  --line: #d2d2d7;
  --surface: #f5f5f7;
  --surface-strong: #e8e8ed;
  --blue: #0066cc;
  --blue-hover: #004f9f;
  --green: #18723c;
  --amber: #8a5700;
  --red: #a12620;
  --white: #fff;
  --max: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
button, input, textarea, select { font: inherit; }

.skip-link {
  position: absolute;
  left: 16px;
  top: -64px;
  z-index: 100;
  padding: 10px 14px;
  color: var(--white);
  background: var(--ink);
  border-radius: 8px;
}
.skip-link:focus { top: 12px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, .88);
  border-bottom: 1px solid rgba(0, 0, 0, .08);
  backdrop-filter: saturate(180%) blur(18px);
}
.nav {
  width: min(calc(100% - 36px), var(--max));
  min-height: 66px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 28px;
}
.brand {
  display: inline-flex;
  align-items: center;
  color: var(--ink);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -.03em;
}
.brand:hover { text-decoration: none; }
.brand img { display: block; width: 142px; height: auto; }
.nav-links {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 14px;
}
.nav-links a { color: var(--ink); }
.nav-links a[aria-current="page"] { font-weight: 650; }
.nav-cta, .button {
  display: inline-flex;
  min-height: 44px;
  padding: 0 18px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--blue);
  border-radius: 999px;
  color: var(--white);
  background: var(--blue);
  font-weight: 650;
  line-height: 1;
  cursor: pointer;
  transition: background .2s ease, border-color .2s ease, transform .2s ease;
}
.nav-cta { min-height: 36px; padding: 0 15px; color: var(--white) !important; }
.nav-cta:hover, .button:hover {
  color: var(--white);
  background: var(--blue-hover);
  border-color: var(--blue-hover);
  text-decoration: none;
  transform: translateY(-1px);
}
.button.secondary { color: var(--blue); background: transparent; }
.button.secondary:hover { color: var(--white); background: var(--blue); }

.hero {
  padding: 104px 0 88px;
  background: linear-gradient(180deg, #fff 0%, #f5f5f7 100%);
}
.shell { width: min(calc(100% - 36px), var(--max)); margin: 0 auto; }
.hero-copy { max-width: 850px; }
.eyebrow {
  margin: 0 0 16px;
  color: var(--blue);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}
h1, h2, h3 { margin-top: 0; letter-spacing: -.035em; line-height: 1.08; }
h1 { margin-bottom: 24px; font-size: clamp(48px, 7vw, 80px); }
h2 { margin-bottom: 18px; font-size: clamp(34px, 4.5vw, 52px); }
h3 { margin-bottom: 10px; font-size: 23px; }
.lede { max-width: 760px; margin: 0; color: var(--muted); font-size: clamp(20px, 2.5vw, 26px); }
.hero-actions { margin-top: 34px; display: flex; flex-wrap: wrap; gap: 12px; }
.meta-line { margin-top: 28px; color: var(--muted); font-size: 14px; }

.section { padding: 88px 0; }
.section.gray { background: var(--surface); }
.section.dark { color: var(--white); background: var(--ink); }
.section.dark .muted, .section.dark p { color: #c7c7cc; }
.section-head { max-width: 760px; margin-bottom: 42px; }
.section-head p, .muted { color: var(--muted); }
.narrow { max-width: 800px; }
.grid-2, .grid-3, .grid-4 {
  display: grid;
  gap: 20px;
}
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card {
  padding: 30px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 22px;
}
.gray .card { border-color: transparent; }
.card p:last-child, .card ul:last-child { margin-bottom: 0; }
.card-label { margin: 0 0 20px; color: var(--muted); font-size: 13px; font-weight: 700; letter-spacing: .07em; text-transform: uppercase; }
.number { color: var(--blue); font-size: 14px; font-weight: 700; }
.text-link { font-weight: 650; }

.split {
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: 64px;
  align-items: start;
}
.sticky-title { position: sticky; top: 104px; }
.stack { display: grid; gap: 20px; }
.rule-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.rule-list li { padding: 18px 0; border-bottom: 1px solid var(--line); }
.check-list { padding-left: 1.2em; }
.check-list li { margin: 8px 0; }

.band {
  padding: 54px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 32px;
  color: var(--white);
  background: var(--ink);
  border-radius: 28px;
}
.band h2 { margin-bottom: 10px; }
.band p { max-width: 620px; margin: 0; color: #c7c7cc; }
.band .button { flex: 0 0 auto; }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 18px; }
table { width: 100%; border-collapse: collapse; background: var(--white); }
th, td { padding: 18px 20px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
th { font-size: 14px; background: var(--surface); }
tr:last-child td { border-bottom: 0; }

.status {
  display: inline-flex;
  padding: 5px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 750;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.status.pass { color: var(--green); background: #e8f6ee; }
.status.fail { color: var(--red); background: #faeceb; }
.status.timeout { color: var(--amber); background: #fff3dc; }
.status.inconclusive { color: #5b587a; background: #eeedf8; }
.notice { padding: 20px 22px; border-left: 4px solid var(--blue); background: #edf6ff; border-radius: 4px 14px 14px 4px; }
.notice.warning { border-left-color: var(--amber); background: #fff8e9; }

.faq-list { border-top: 1px solid var(--line); }
details { border-bottom: 1px solid var(--line); }
summary { padding: 22px 42px 22px 0; cursor: pointer; font-weight: 650; list-style: none; position: relative; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 4px; top: 20px; color: var(--blue); font-size: 25px; font-weight: 400; }
details[open] summary::after { content: "–"; }
details > div { max-width: 800px; padding: 0 42px 22px 0; color: var(--muted); }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: grid; gap: 7px; }
.field.full { grid-column: 1 / -1; }
label { font-size: 14px; font-weight: 650; }
input, textarea, select {
  width: 100%;
  padding: 13px 14px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid #a8a8ad;
  border-radius: 10px;
}
textarea { min-height: 132px; resize: vertical; }
input:focus, textarea:focus, select:focus { outline: 3px solid rgba(0, 102, 204, .2); border-color: var(--blue); }
.checkbox { display: flex; align-items: flex-start; gap: 10px; }
.checkbox input { width: auto; margin-top: 6px; }
.form-note { color: var(--muted); font-size: 13px; }
.form-status { min-height: 1.5em; margin-top: 14px; font-weight: 650; }

.legal h2 { margin-top: 54px; font-size: 31px; }
.legal h3 { margin-top: 30px; font-size: 21px; }
.legal p, .legal li { color: #424245; }
.legal li { margin: 8px 0; }

.journal-hero {
  position: relative;
  overflow: hidden;
  padding: 116px 0 92px;
  color: var(--white);
  background: #111;
}
.journal-hero::after {
  content: "";
  position: absolute;
  right: -12vw;
  bottom: -22vw;
  width: 48vw;
  height: 48vw;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 50%;
  box-shadow: 0 0 0 8vw rgba(255,255,255,.025), 0 0 0 16vw rgba(255,255,255,.018);
}
.journal-hero .hero-copy { position: relative; z-index: 1; }
.journal-hero h1 {
  max-width: 900px;
  font-family: "Iowan Old Style", "Baskerville", Georgia, serif;
  font-weight: 500;
  letter-spacing: -.05em;
}
.journal-hero .lede { color: #c7c7cc; }
.journal-index {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 54px;
  padding: 32px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.journal-index time { color: var(--muted); font-size: 13px; text-transform: uppercase; letter-spacing: .06em; }
.journal-index h2 { margin-bottom: 12px; font-family: "Iowan Old Style", "Baskerville", Georgia, serif; font-size: clamp(32px, 4vw, 48px); font-weight: 500; }
.journal-index p { max-width: 720px; margin: 0 0 16px; color: var(--muted); }
.article-shell { display: grid; grid-template-columns: 190px minmax(0, 720px); gap: 70px; justify-content: center; }
.article-meta { position: sticky; top: 104px; align-self: start; }
.article-meta p { margin: 0 0 14px; color: var(--muted); font-size: 13px; }
.article-meta strong { display: block; color: var(--ink); }
.article-body h2 {
  margin: 62px 0 18px;
  font-family: "Iowan Old Style", "Baskerville", Georgia, serif;
  font-size: clamp(32px, 4vw, 46px);
  font-weight: 500;
}
.article-body h2:first-child { margin-top: 0; }
.article-body h3 { margin-top: 34px; }
.article-body p, .article-body li { color: #424245; font-size: 18px; line-height: 1.7; }
.article-body li { margin: 10px 0; }
.article-deck { color: var(--ink) !important; font-size: 24px !important; line-height: 1.45 !important; }
.article-callout {
  margin: 40px 0;
  padding: 30px;
  background: var(--surface);
  border-left: 4px solid var(--blue);
}
.article-callout p { margin: 0; color: var(--ink); font-size: 20px; }
.article-sources { margin-top: 54px; padding-top: 24px; border-top: 1px solid var(--line); }
.article-sources h3 { margin-top: 0; font-size: 16px; }
.article-sources ol { padding-left: 1.2em; }
.article-sources li, .article-sources a { font-size: 14px; }
.resource-card { display: flex; min-height: 220px; flex-direction: column; }
.resource-card .text-link { margin-top: auto; padding-top: 24px; }

.site-footer { padding: 56px 0 26px; color: #a1a1a6; background: #111; font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 1.7fr 1fr 1fr 1fr; gap: 34px; }
.footer-brand { display: inline-flex; align-items: center; color: var(--white); font-size: 18px; font-weight: 700; }
.footer-brand img { display: block; width: 158px; height: auto; }
.footer-title { margin: 0 0 12px; color: var(--white); font-weight: 650; }
.footer-links { display: grid; gap: 8px; }
.footer-links a { color: #c7c7cc; }
.footer-bottom { margin-top: 42px; padding-top: 20px; border-top: 1px solid #343438; }

.reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (max-width: 860px) {
  .nav-links a:not(.nav-cta) { display: none; }
  .hero { padding: 78px 0 66px; }
  .section { padding: 68px 0; }
  .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; }
  .split { grid-template-columns: 1fr; gap: 28px; }
  .sticky-title { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .band { padding: 38px; align-items: flex-start; flex-direction: column; }
  .article-shell { grid-template-columns: 140px minmax(0, 1fr); gap: 38px; }
}

@media (max-width: 580px) {
  body { font-size: 16px; }
  .nav { min-height: 58px; }
  .nav-cta { min-height: 34px; padding: 0 12px; font-size: 13px; }
  .hero { padding-top: 62px; }
  h1 { font-size: 44px; }
  .grid-2, .grid-3, .grid-4, .form-grid, .footer-grid { grid-template-columns: 1fr; }
  .card { padding: 24px; border-radius: 18px; }
  .band { padding: 28px; border-radius: 22px; }
  .field.full { grid-column: auto; }
  .journal-hero { padding: 82px 0 72px; }
  .journal-index, .article-shell { grid-template-columns: 1fr; gap: 22px; }
  .article-meta { position: static; display: flex; gap: 24px; flex-wrap: wrap; }
  .article-deck { font-size: 21px !important; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}