:root {
  --orange: #e84e0f;
  --green: #005a40;
  --blue: #0080e0;
  --ink: #111111;
  --muted: #636363;
  --soft: #f9f9f9;
  --fill: #eee3e1;
  --line: #dfdfdf;
  --white: #ffffff;
  --wide: 1030px;
  --reading: 830px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--soft);
  color: var(--ink);
  font-family: Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 18px;
  line-height: 1.65;
}
a { color: var(--blue); text-decoration-thickness: 2px; text-underline-offset: 4px; }
a:hover { text-decoration: none; }
img { display: block; max-width: 100%; }
.wide { width: min(var(--wide), calc(100% - 40px)); margin-inline: auto; }
.reading-width { width: min(var(--reading), calc(100% - 40px)); margin-inline: auto; }
.skip-link { position: absolute; left: -9999px; top: 10px; padding: 10px 14px; background: #fff; z-index: 100; }
.skip-link:focus { left: 10px; }

.site-header { background: var(--white); }
.header-inner { min-height: 142px; display: flex; align-items: center; gap: 44px; }
.brand { color: var(--ink); text-decoration: none; display: flex; align-items: center; gap: 13px; margin-right: auto; }
.brand img { width: 48px; height: 48px; flex: 0 0 48px; }
.brand strong { font-size: clamp(2rem, 4vw, 2.82rem); line-height: 1; font-weight: 900; letter-spacing: -.06em; }
.brand span { max-width: 125px; font-size: .76rem; line-height: 1.15; text-transform: uppercase; letter-spacing: .08em; font-weight: 700; }
.primary-nav ul { display: flex; align-items: center; gap: 28px; list-style: none; padding: 0; margin: 0; }
.primary-nav a { color: var(--ink); font-size: clamp(1rem, 2vw, 1.3rem); font-weight: 800; text-decoration: none; }
.primary-nav a:hover, .primary-nav a[aria-current="page"] { color: var(--orange); }
.menu-toggle { display: none; border: 2px solid var(--ink); background: #fff; min-height: 44px; padding: 0 15px; font: inherit; font-weight: 800; }
.wave-rule { height: 48px; background: #fff url("/assets/wave-line.svg") center / min(1030px, calc(100% - 40px)) 48px no-repeat; }

.hero { background: var(--white); padding: 68px 0 82px; }
.hero .reading-width { margin-left: max(20px, calc((100% - var(--wide)) / 2)); }
.eyebrow, .kicker, .panel-label { margin: 0 0 18px; color: var(--orange); text-transform: uppercase; letter-spacing: .12em; font-size: .75rem; font-weight: 900; }
.hero h1 { margin: 0 0 26px; max-width: 940px; font-size: clamp(3rem, 8vw, 6.7rem); line-height: .92; letter-spacing: -.075em; font-weight: 900; }
.hero .lead { max-width: 800px; margin: 0; font-size: clamp(1.22rem, 2.4vw, 1.65rem); line-height: 1.45; font-weight: 500; }
.article-hero { background: var(--white); padding: 58px 0 70px; border-bottom: 8px solid var(--orange); }
.article-hero h1 { max-width: 910px; margin: 0 0 24px; font-size: clamp(2.6rem, 6vw, 5.4rem); line-height: .97; letter-spacing: -.065em; }
.article-hero .lead { max-width: 790px; margin: 0; font-size: clamp(1.15rem, 2vw, 1.45rem); font-weight: 500; }

.intro-section { background: var(--white); padding: 0 0 90px; }
.large-copy { font-size: clamp(1.18rem, 2.1vw, 1.58rem); font-weight: 500; }
.action-row { display: grid; grid-template-columns: 1fr 1fr; gap: 34px; margin-top: 46px; }
.text-action { display: flex; justify-content: space-between; gap: 20px; padding: 18px 0 12px; border-bottom: 4px solid var(--orange); color: var(--ink); font-weight: 800; text-decoration: none; }
.text-action span { color: var(--orange); }
.transition-panel { background: var(--fill); padding: 56px 0; border-top: 1px solid #e1d3d1; border-bottom: 1px solid #e1d3d1; }
.transition-panel h2, .section h2, .prose h2 { margin: 0 0 20px; font-size: clamp(2rem, 4vw, 3.2rem); line-height: 1.05; letter-spacing: -.045em; }
.transition-panel p:last-child { margin-bottom: 0; font-size: 1.08rem; }
.section { padding: 92px 0; background: var(--soft); }
.section:nth-of-type(even) { background: var(--white); }
.section-heading { max-width: 760px; margin-bottom: 44px; }
.guide-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: #cfcfcf; border: 1px solid #cfcfcf; }
.guide-grid article { background: #fff; padding: 36px 30px; }
.guide-grid article > span { color: var(--orange); font-weight: 900; letter-spacing: .12em; }
.guide-grid h3 { min-height: 3.1em; margin: 34px 0 12px; font-size: 1.45rem; line-height: 1.05; }
.guide-grid a { font-weight: 800; }
.black-band { background: var(--ink); color: #fff; padding: 42px 0; }
.evidence-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 44px; }
.evidence-grid div { display: flex; align-items: center; gap: 18px; }
.evidence-grid strong { color: var(--orange); font-size: 3rem; line-height: 1; }
.evidence-grid span { max-width: 165px; font-size: .92rem; line-height: 1.3; }
.split { display: grid; grid-template-columns: .9fr 1.1fr; gap: 80px; }
.numbered-links { list-style: none; padding: 0; margin: 0; border-top: 1px solid #bbb; }
.numbered-links li { border-bottom: 1px solid #bbb; }
.numbered-links a { display: flex; gap: 24px; align-items: center; padding: 20px 0; color: var(--ink); text-decoration: none; font-weight: 800; }
.numbered-links span { color: var(--orange); font-size: .8rem; letter-spacing: .12em; }

.prose > *:first-child { margin-top: 0; }
.prose h2:not(:first-child) { margin-top: 58px; }
.prose h3 { margin-bottom: 5px; }
.prose p, .prose li { max-width: 760px; }
.check-list { list-style: none; padding: 0; margin: 28px 0; }
.check-list li { position: relative; padding: 13px 0 13px 34px; border-bottom: 1px solid #d7d7d7; }
.check-list li::before { content: "—"; position: absolute; left: 0; color: var(--orange); font-weight: 900; }
.callout { margin: 48px 0 0; padding: 30px 34px; background: var(--fill); border-left: 8px solid var(--orange); }
.callout strong { font-size: 1.25rem; }
.callout p { margin-bottom: 0; }
.four-grid, .limit-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: #c8c8c8; border: 1px solid #c8c8c8; margin: 38px 0; }
.four-grid div, .limit-grid div { background: #fff; padding: 25px; }
.four-grid b, .limit-grid span { color: var(--orange); text-transform: uppercase; letter-spacing: .1em; font-size: .8rem; }
.four-grid p, .limit-grid p { margin-bottom: 0; }
.limit-grid { grid-template-columns: repeat(3, 1fr); }
.limit-grid strong { display: block; margin-top: 16px; font-size: 1.1rem; line-height: 1.2; }
.formula-card { margin: 40px 0; padding: 34px; background: var(--green); color: #fff; }
.formula-card span { display: block; text-transform: uppercase; letter-spacing: .12em; font-size: .72rem; font-weight: 900; }
.formula-card strong { display: block; margin: 16px 0; font-size: clamp(1.35rem, 3vw, 2rem); line-height: 1.2; }
.formula-card p { margin-bottom: 0; }
.alert-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: #bbb; border: 1px solid #bbb; margin-top: 44px; }
.alert-grid div { padding: 30px; background: #fff; }
.alert-grid div:first-child { border-top: 7px solid var(--orange); }
.alert-grid div:last-child { border-top: 7px solid var(--green); }
.alert-grid p { margin-bottom: 0; }
.step-list { list-style: none; padding: 0; margin: 36px 0; }
.step-list li { display: grid; grid-template-columns: 55px 1fr; gap: 22px; padding: 22px 0; border-bottom: 1px solid #ccc; }
.step-list li > span { color: var(--orange); font-size: 1.8rem; font-weight: 900; }
.step-list h3 { margin-top: 0; }
.step-list p { margin-bottom: 0; }
.method-list { border-top: 1px solid #bbb; margin-top: 36px; }
.method-list div { display: grid; grid-template-columns: 180px 1fr; gap: 25px; padding: 22px 0; border-bottom: 1px solid #bbb; }
.method-list p { margin: 0; }
.update { padding: 0 0 48px; margin-bottom: 48px; border-bottom: 5px solid var(--orange); }
.update time { color: var(--muted); font-weight: 700; }
.update h2 { margin-top: 12px; }
.quiet-note { padding: 30px; background: var(--fill); }
.quiet-note p { margin-bottom: 0; }
.faq-list details { padding: 24px 0; border-bottom: 1px solid #aaa; }
.faq-list details:first-child { border-top: 1px solid #aaa; }
.faq-list summary { cursor: pointer; font-size: 1.25rem; font-weight: 800; }
.faq-list summary::marker { color: var(--orange); }
.faq-list details p { padding-left: 22px; }

.site-footer { background: var(--ink); color: #fff; }
.footer-wave { height: 48px; background: #fff url("/assets/wave-line.svg") center / min(1030px, calc(100% - 40px)) 48px no-repeat; filter: grayscale(1); }
.footer-inner { padding: 55px 0 42px; display: grid; grid-template-columns: 1.2fr .8fr .8fr; gap: 60px; }
.site-footer h2 { margin: 0 0 16px; font-size: 2rem; }
.site-footer h3 { margin-top: 0; color: #fff; font-size: .78rem; text-transform: uppercase; letter-spacing: .12em; }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin: 8px 0; }
.site-footer a { color: #fff; }
.footer-note { border-top: 1px solid #444; padding: 20px 0; color: #bdbdbd; font-size: .78rem; }
.footer-note .wide { display: flex; justify-content: space-between; gap: 25px; }
.gone-page { min-height: 100vh; display: grid; place-items: center; padding: 30px; background: var(--soft); }
.gone-card { width: min(680px, 100%); padding: 45px; background: #fff; border-top: 10px solid var(--orange); }
.gone-card .status { color: var(--orange); font-size: 4rem; font-weight: 900; line-height: 1; }
.gone-card h1 { font-size: 2.2rem; line-height: 1.05; }

@media (max-width: 860px) {
  .header-inner { min-height: 105px; gap: 20px; }
  .menu-toggle { display: block; }
  .primary-nav { display: none; position: absolute; z-index: 50; left: 20px; right: 20px; top: 96px; padding: 20px; background: #fff; border: 2px solid #111; }
  .primary-nav.is-open { display: block; }
  .primary-nav ul { display: grid; gap: 14px; }
  .guide-grid, .evidence-grid, .footer-inner { grid-template-columns: 1fr; }
  .guide-grid h3 { min-height: auto; }
  .split { grid-template-columns: 1fr; gap: 45px; }
  .evidence-grid div { justify-content: center; }
  .footer-inner { gap: 30px; }
}

@media (max-width: 620px) {
  body { font-size: 16px; }
  .wide, .reading-width { width: min(100% - 28px, var(--wide)); }
  .brand span { display: none; }
  .hero { padding: 52px 0 62px; }
  .hero .reading-width { margin-inline: 14px; }
  .hero h1 { font-size: clamp(3.3rem, 19vw, 5rem); }
  .article-hero { padding: 45px 0 52px; }
  .action-row, .four-grid, .limit-grid, .alert-grid { grid-template-columns: 1fr; }
  .section { padding: 68px 0; }
  .transition-panel { padding: 44px 0; }
  .method-list div { grid-template-columns: 1fr; gap: 6px; }
  .footer-note .wide { display: grid; }
  .gone-card { padding: 35px 26px; }
}