:root {
  color-scheme: dark;
  --ink: #061616;
  --ink-2: #0b2422;
  --ink-3: #12322f;
  --line: rgba(176, 230, 218, .17);
  --paper: #f4fbf8;
  --muted: #9fbdb7;
  --mint: #35e0c1;
  --lime: #d9ff58;
  --amber: #ffcb6b;
  --red: #ff807b;
  --radius: 24px;
  --shadow: 0 26px 80px rgba(0,0,0,.26);
  --max: 1240px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 86% -10%, rgba(53,224,193,.16), transparent 34rem),
    radial-gradient(circle at -10% 60%, rgba(217,255,88,.07), transparent 34rem),
    var(--ink);
  color: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}
body.light {
  color-scheme: light;
  --ink: #edf7f3;
  --ink-2: #ffffff;
  --ink-3: #dbece6;
  --line: rgba(13, 55, 50, .14);
  --paper: #0b2522;
  --muted: #52706b;
  --shadow: 0 26px 80px rgba(13, 44, 40, .13);
  background: radial-gradient(circle at 86% -10%, rgba(53,224,193,.22), transparent 34rem), #edf7f3;
}
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
img, svg { display: block; max-width: 100%; }
.shell { width: min(calc(100% - 40px), var(--max)); margin-inline: auto; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 1000; padding: 12px 16px; background: var(--lime); color: #071b1b; border-radius: 12px; font-weight: 800; }
.skip-link:focus { top: 16px; }

.topline { border-bottom: 1px solid var(--line); background: rgba(6,22,22,.82); color: #b8d2cc; font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; }
.topline .shell { min-height: 34px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.topline strong { color: var(--lime); }
.site-header { position: sticky; top: 0; z-index: 50; border-bottom: 1px solid var(--line); background: color-mix(in srgb, var(--ink) 87%, transparent); backdrop-filter: blur(20px); }
.header-inner { min-height: 76px; display: flex; align-items: center; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; min-width: max-content; }
.brand img { width: 42px; height: 42px; }
.brand-name { display: grid; line-height: 1; }
.brand-name strong { font-size: 1.03rem; letter-spacing: .04em; }
.brand-name small { margin-top: 7px; color: var(--muted); font-size: .63rem; letter-spacing: .08em; text-transform: uppercase; }
.main-nav { margin-left: auto; display: flex; align-items: center; gap: 4px; }
.main-nav a { padding: 10px 12px; color: var(--muted); border-radius: 10px; font-size: .9rem; font-weight: 700; }
.main-nav a:hover, .main-nav a[aria-current="page"] { color: var(--paper); background: var(--line); }
.header-actions { display: flex; gap: 8px; align-items: center; }
.icon-button, .menu-button { width: 42px; height: 42px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; background: transparent; color: var(--paper); cursor: pointer; }
.menu-button { display: none; }

.button { display: inline-flex; justify-content: center; align-items: center; gap: 9px; min-height: 48px; padding: 0 20px; border: 1px solid transparent; border-radius: 14px; background: var(--lime); color: #071b1b; font-weight: 850; cursor: pointer; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(217,255,88,.15); }
.button.secondary { color: var(--paper); border-color: var(--line); background: transparent; }
.button.small { min-height: 42px; padding-inline: 16px; font-size: .86rem; }
.eyebrow { display: inline-flex; align-items: center; gap: 9px; color: var(--mint); font-size: .78rem; font-weight: 850; letter-spacing: .12em; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 24px; height: 2px; background: currentColor; }
.section { padding: 98px 0; }
.section.compact { padding: 72px 0; }
.section + .section { border-top: 1px solid var(--line); }
.section-heading { max-width: 760px; margin-bottom: 40px; }
.section-heading h2 { margin: 10px 0 14px; font-size: clamp(2rem, 4vw, 4rem); line-height: 1.02; letter-spacing: -.045em; }
.section-heading p { margin: 0; color: var(--muted); font-size: 1.05rem; }
.section-heading.split { max-width: none; display: flex; justify-content: space-between; align-items: end; gap: 32px; }
.section-heading.split > div:first-child { max-width: 760px; }

.hero { min-height: 720px; display: grid; align-items: center; padding: 72px 0 96px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(380px, .9fr); gap: 64px; align-items: center; }
.hero h1 { max-width: 760px; margin: 18px 0 22px; font-size: clamp(3.6rem, 8vw, 7.8rem); line-height: .86; letter-spacing: -.07em; }
.hero h1 span { color: var(--lime); }
.hero-copy > p { max-width: 680px; margin: 0 0 30px; color: var(--muted); font-size: clamp(1.05rem, 1.5vw, 1.25rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.trust-row { display: flex; flex-wrap: wrap; gap: 12px 24px; margin-top: 34px; color: var(--muted); font-size: .82rem; }
.trust-row span { display: inline-flex; align-items: center; gap: 8px; }
.trust-row i { width: 8px; height: 8px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 0 5px rgba(53,224,193,.1); }

.news-ticker { border-bottom: 1px solid var(--line); background: var(--ink-2); }
.news-ticker .shell { min-height: 46px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 16px; }
.ticker-label { padding: 5px 9px; border-radius: 7px; background: var(--red); color: #071b1b; font-size: .68rem; font-weight: 950; letter-spacing: .08em; text-transform: uppercase; }
.ticker-copy { min-width: 0; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; color: var(--muted); font-size: .84rem; }
.ticker-copy strong { color: var(--paper); }
.ticker-date { color: var(--muted); font-size: .72rem; }

.news-hero-section { padding: 50px 0 70px; }
.news-hero-grid { display: grid; grid-template-columns: minmax(0, 1.42fr) minmax(340px, .58fr); gap: 18px; }
.lead-story { min-height: 610px; padding: clamp(28px, 5vw, 58px); display: flex; flex-direction: column; justify-content: end; position: relative; overflow: hidden; border: 1px solid var(--line); border-radius: 30px; background:
  linear-gradient(180deg, rgba(6,22,22,.08) 10%, rgba(6,22,22,.96) 88%),
  radial-gradient(circle at 78% 10%, rgba(53,224,193,.38), transparent 38%),
  linear-gradient(135deg, #173f39, #081e1c 60%);
  box-shadow: var(--shadow);
}
.lead-story::before { content: "4 950"; position: absolute; top: -28px; right: -16px; color: rgba(217,255,88,.085); font-size: clamp(7rem, 16vw, 15rem); font-weight: 950; letter-spacing: -.09em; line-height: 1; }
.lead-story > * { position: relative; z-index: 1; }
.story-kicker { display: inline-flex; align-items: center; width: fit-content; padding: 7px 10px; border-radius: 8px; background: var(--lime); color: #071b1b; font-size: .7rem; font-weight: 950; letter-spacing: .08em; text-transform: uppercase; }
.lead-story h1 { max-width: 900px; margin: 18px 0 18px; font-size: clamp(2.9rem, 6.1vw, 6.7rem); line-height: .91; letter-spacing: -.06em; }
.lead-story p { max-width: 740px; margin: 0 0 26px; color: #bad0ca; font-size: 1.04rem; }
.story-data { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 28px; }
.story-data span { padding: 8px 11px; border: 1px solid var(--line); border-radius: 10px; background: rgba(6,22,22,.48); color: #d5e6e1; font-size: .78rem; }
.story-link { display: inline-flex; align-items: center; gap: 9px; width: fit-content; color: var(--lime); font-weight: 900; }
.news-side { display: grid; grid-template-rows: repeat(3, 1fr); gap: 14px; }
.news-card { min-height: 190px; padding: 23px; display: flex; flex-direction: column; position: relative; overflow: hidden; background: var(--ink-2); border: 1px solid var(--line); border-radius: 22px; }
.news-card:hover { border-color: rgba(53,224,193,.4); }
.news-card .category { color: var(--mint); font-size: .68rem; font-weight: 900; letter-spacing: .09em; text-transform: uppercase; }
.news-card h2 { margin: 13px 0 9px; font-size: 1.22rem; line-height: 1.16; letter-spacing: -.02em; }
.news-card p { margin: 0; color: var(--muted); font-size: .82rem; }
.news-card footer { margin-top: auto; padding-top: 14px; display: flex; justify-content: space-between; color: var(--muted); font-size: .7rem; }
.news-card footer b { color: var(--lime); }
.news-card.featured { background: linear-gradient(145deg, rgba(53,224,193,.12), var(--ink-2)); }
.edition-bar { margin-top: 18px; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 18px; padding: 16px 20px; border: 1px solid var(--line); border-radius: 16px; color: var(--muted); font-size: .82rem; }
.edition-bar strong { color: var(--paper); }

.command-card { position: relative; padding: 22px; background: linear-gradient(145deg, rgba(18,50,47,.95), rgba(8,29,28,.88)); border: 1px solid rgba(109,225,203,.22); border-radius: 32px; box-shadow: var(--shadow); transform: rotate(1deg); }
.command-card::before { content: ""; position: absolute; inset: -60px; z-index: -1; background: radial-gradient(circle, rgba(53,224,193,.18), transparent 62%); filter: blur(10px); }
.command-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.command-head b { font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; }
.live-badge { display: inline-flex; align-items: center; gap: 7px; color: var(--mint); font-size: .72rem; font-weight: 800; }
.live-badge::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: currentColor; box-shadow: 0 0 0 5px rgba(53,224,193,.1); }
.command-main { padding: 22px; background: rgba(6,22,22,.78); border: 1px solid var(--line); border-radius: 22px; }
.command-main small { color: var(--muted); text-transform: uppercase; letter-spacing: .08em; }
.command-main h3 { margin: 9px 0 20px; font-size: 1.55rem; line-height: 1.16; }
.signal-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 9px; }
.signal { padding: 13px; border: 1px solid var(--line); border-radius: 15px; }
.signal strong, .signal span { display: block; }
.signal strong { color: var(--lime); font-size: 1.18rem; }
.signal span { margin-top: 3px; color: var(--muted); font-size: .67rem; }
.command-list { display: grid; gap: 9px; margin-top: 10px; }
.command-item { display: grid; grid-template-columns: 36px 1fr auto; align-items: center; gap: 12px; padding: 12px; border: 1px solid var(--line); border-radius: 16px; background: rgba(6,22,22,.42); }
.command-item > span:first-child { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 11px; background: rgba(53,224,193,.1); color: var(--mint); font-weight: 900; }
.command-item b { display: block; font-size: .82rem; }
.command-item small { display: block; margin-top: 2px; color: var(--muted); }
.command-item em { color: var(--lime); font-style: normal; font-size: .7rem; font-weight: 850; }

.role-strip { margin-top: -46px; position: relative; z-index: 5; }
.role-box { display: grid; grid-template-columns: 1.1fr 2fr; gap: 24px; align-items: center; padding: 22px; background: color-mix(in srgb, var(--ink-2) 96%, transparent); border: 1px solid var(--line); border-radius: 24px; box-shadow: var(--shadow); }
.role-box strong { display: block; font-size: 1.05rem; }
.role-box p { margin: 3px 0 0; color: var(--muted); font-size: .86rem; }
.role-pills { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px; }
.role-pill { padding: 10px 14px; border: 1px solid var(--line); border-radius: 999px; background: transparent; color: var(--muted); cursor: pointer; }
.role-pill:hover, .role-pill.active { background: var(--mint); border-color: var(--mint); color: #071b1b; }

.feature-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 18px; }
.feature { min-height: 275px; padding: 26px; display: flex; flex-direction: column; position: relative; overflow: hidden; background: var(--ink-2); border: 1px solid var(--line); border-radius: var(--radius); }
.feature:nth-child(1), .feature:nth-child(4) { grid-column: span 7; }
.feature:nth-child(2), .feature:nth-child(3) { grid-column: span 5; }
.feature::after { content: attr(data-index); position: absolute; right: 18px; bottom: -32px; color: rgba(172,228,215,.045); font-size: 9rem; font-weight: 950; line-height: 1; }
.feature-icon { width: 48px; height: 48px; display: grid; place-items: center; border-radius: 15px; background: rgba(53,224,193,.1); color: var(--mint); font-size: 1.25rem; font-weight: 900; }
.feature h3 { margin: auto 0 10px; font-size: 1.55rem; }
.feature p { max-width: 540px; margin: 0; color: var(--muted); }
.feature a { margin-top: 20px; color: var(--lime); font-weight: 850; }

.knowledge-controls { display: grid; grid-template-columns: minmax(240px, 1fr) auto; gap: 16px; margin-bottom: 24px; }
.search-box { position: relative; }
.search-box input { width: 100%; min-height: 52px; padding: 0 18px 0 48px; color: var(--paper); background: var(--ink-2); border: 1px solid var(--line); border-radius: 14px; outline: none; }
.search-box input:focus { border-color: var(--mint); box-shadow: 0 0 0 4px rgba(53,224,193,.1); }
.search-box::before { content: "⌕"; position: absolute; left: 18px; top: 12px; color: var(--muted); font-size: 1.35rem; }
.filters { display: flex; flex-wrap: wrap; gap: 8px; justify-content: flex-end; }
.filter { padding: 10px 13px; border: 1px solid var(--line); border-radius: 999px; background: transparent; color: var(--muted); cursor: pointer; }
.filter.active, .filter:hover { color: #071b1b; background: var(--lime); border-color: var(--lime); }
.article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.article-card { display: flex; flex-direction: column; min-height: 330px; padding: 22px; background: var(--ink-2); border: 1px solid var(--line); border-radius: 20px; transition: transform .2s ease, border-color .2s ease; }
.article-card:hover { transform: translateY(-4px); border-color: rgba(53,224,193,.45); }
.article-meta { display: flex; justify-content: space-between; gap: 12px; color: var(--muted); font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; }
.article-type { color: var(--mint); font-weight: 850; }
.article-card h3 { margin: 28px 0 12px; font-size: 1.3rem; line-height: 1.2; }
.article-card p { margin: 0; color: var(--muted); font-size: .92rem; }
.article-footer { margin-top: auto; padding-top: 26px; display: flex; justify-content: space-between; align-items: center; color: var(--muted); font-size: .76rem; }
.evidence { display: inline-flex; align-items: center; gap: 7px; }
.evidence i { width: 8px; height: 8px; border-radius: 50%; background: var(--mint); }
.no-results { grid-column: 1 / -1; padding: 40px; text-align: center; color: var(--muted); border: 1px dashed var(--line); border-radius: 20px; }

.tool-wrap { display: grid; grid-template-columns: .9fr 1.1fr; gap: 24px; }
.tool-info, .calculator { padding: 32px; border: 1px solid var(--line); border-radius: 26px; background: var(--ink-2); }
.tool-info { background: linear-gradient(145deg, rgba(53,224,193,.14), rgba(11,36,34,.9)); }
.tool-info h3 { margin: 12px 0 14px; font-size: 2.2rem; line-height: 1.03; }
.tool-info p { color: var(--muted); }
.steps { display: grid; gap: 14px; margin-top: 30px; }
.step { display: grid; grid-template-columns: 38px 1fr; gap: 13px; align-items: start; }
.step span { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 12px; background: var(--lime); color: #071b1b; font-weight: 900; }
.step b { display: block; }
.step small { color: var(--muted); }
.calc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: grid; gap: 7px; }
.field label { color: var(--muted); font-size: .78rem; font-weight: 750; }
.input-wrap { position: relative; }
.input-wrap input { width: 100%; height: 50px; padding: 0 52px 0 14px; color: var(--paper); background: var(--ink); border: 1px solid var(--line); border-radius: 12px; outline: none; }
.input-wrap input:focus { border-color: var(--mint); }
.input-wrap span { position: absolute; right: 14px; top: 14px; color: var(--muted); font-size: .78rem; }
.calc-result { margin-top: 20px; padding: 22px; border-radius: 18px; background: var(--lime); color: #071b1b; }
.calc-result small { display: block; font-weight: 750; opacity: .72; }
.calc-result strong { display: block; margin-top: 5px; font-size: clamp(2rem, 5vw, 3.5rem); letter-spacing: -.05em; }
.calc-breakdown { margin-top: 16px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.calc-breakdown div { padding: 12px; border: 1px solid rgba(7,27,27,.16); border-radius: 12px; }
.calc-breakdown b, .calc-breakdown span { display: block; }
.calc-breakdown b { font-size: .85rem; }
.calc-breakdown span { font-size: .68rem; opacity: .7; }
.calc-note { margin: 14px 0 0; color: var(--muted); font-size: .74rem; }

.standards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; counter-reset: standard; }
.standard { padding: 24px; border-top: 2px solid var(--mint); background: var(--ink-2); border-radius: 0 0 18px 18px; counter-increment: standard; }
.standard::before { content: "0" counter(standard); display: block; margin-bottom: 34px; color: var(--mint); font-size: .75rem; font-weight: 900; }
.standard h3 { margin: 0 0 8px; font-size: 1.1rem; }
.standard p { margin: 0; color: var(--muted); font-size: .85rem; }

.cta-section { padding: 90px 0; }
.cta-box { padding: 56px; display: grid; grid-template-columns: 1.4fr .6fr; gap: 40px; align-items: end; position: relative; overflow: hidden; color: #071b1b; background: var(--lime); border-radius: 34px; }
.cta-box::after { content: "CB"; position: absolute; right: -20px; top: -75px; color: rgba(7,27,27,.06); font-size: 16rem; font-weight: 950; line-height: 1; }
.cta-box h2 { margin: 0 0 14px; font-size: clamp(2.3rem, 5vw, 5rem); line-height: .95; letter-spacing: -.055em; }
.cta-box p { max-width: 690px; margin: 0; font-weight: 650; opacity: .74; }
.cta-box .button { position: relative; z-index: 2; background: #071b1b; color: #f4fbf8; }

.site-footer { padding: 58px 0 30px; border-top: 1px solid var(--line); }
.footer-grid { display: grid; grid-template-columns: 1.3fr repeat(3, 1fr); gap: 36px; }
.footer-intro p { max-width: 360px; color: var(--muted); font-size: .88rem; }
.footer-col h3 { margin: 0 0 15px; font-size: .82rem; text-transform: uppercase; letter-spacing: .08em; }
.footer-col a { display: block; margin: 9px 0; color: var(--muted); font-size: .86rem; }
.footer-col a:hover { color: var(--paper); }
.footer-bottom { margin-top: 44px; padding-top: 22px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 18px; color: var(--muted); font-size: .75rem; }

.page-hero { padding: 86px 0 64px; border-bottom: 1px solid var(--line); }
.page-hero h1 { max-width: 920px; margin: 16px 0; font-size: clamp(3rem, 7vw, 6.4rem); line-height: .92; letter-spacing: -.06em; }
.page-hero p { max-width: 720px; color: var(--muted); font-size: 1.1rem; }
.content-layout { display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: 56px; padding: 72px 0 100px; }
.side-nav { position: sticky; top: 110px; align-self: start; display: grid; gap: 6px; }
.side-nav a { padding: 10px 12px; color: var(--muted); border-left: 2px solid var(--line); font-size: .86rem; }
.side-nav a:hover { color: var(--paper); border-color: var(--mint); }
.prose { max-width: 820px; }
.prose h2 { margin: 60px 0 16px; font-size: 2rem; letter-spacing: -.03em; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { margin: 32px 0 10px; }
.prose p, .prose li { color: var(--muted); }
.prose strong { color: var(--paper); }
.prose a { color: var(--mint); text-decoration: underline; text-underline-offset: 3px; }
.callout { margin: 28px 0; padding: 22px; border-left: 3px solid var(--lime); background: var(--ink-2); border-radius: 0 16px 16px 0; }
.callout p { margin: 0; }

@media (max-width: 1020px) {
  .main-nav { display: none; position: absolute; inset: 77px 20px auto; padding: 16px; flex-direction: column; align-items: stretch; background: var(--ink-2); border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow); }
  .main-nav.open { display: flex; }
  .menu-button { display: grid; }
  .header-actions .button { display: none; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-copy { max-width: 850px; }
  .command-card { max-width: 680px; transform: none; }
  .role-box { grid-template-columns: 1fr; }
  .role-pills { justify-content: flex-start; }
  .article-grid { grid-template-columns: 1fr 1fr; }
  .tool-wrap { grid-template-columns: 1fr; }
  .standards { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .news-hero-grid { grid-template-columns: 1fr; }
  .news-side { grid-template-columns: repeat(3, 1fr); grid-template-rows: auto; }
}

@media (max-width: 720px) {
  .shell { width: min(calc(100% - 24px), var(--max)); }
  .topline .shell { min-height: 40px; }
  .topline span:last-child { display: none; }
  .brand-name small { display: none; }
  .hero { min-height: auto; padding: 58px 0 86px; }
  .hero-grid { gap: 44px; }
  .hero h1 { font-size: clamp(3.5rem, 19vw, 5.4rem); }
  .news-ticker .shell { grid-template-columns: auto 1fr; }
  .ticker-date { display: none; }
  .news-hero-section { padding-top: 24px; }
  .lead-story { min-height: 590px; padding: 26px 22px; }
  .lead-story h1 { font-size: clamp(2.75rem, 14vw, 4.6rem); }
  .news-side { grid-template-columns: 1fr; }
  .edition-bar { grid-template-columns: 1fr; }
  .command-card { padding: 14px; border-radius: 24px; }
  .signal-grid { grid-template-columns: 1fr; }
  .command-item { grid-template-columns: 36px 1fr; }
  .command-item em { display: none; }
  .role-strip { margin-top: -32px; }
  .section { padding: 76px 0; }
  .section-heading.split { display: block; }
  .section-heading.split .button { margin-top: 20px; }
  .feature-grid { display: grid; grid-template-columns: 1fr; }
  .feature:nth-child(n) { grid-column: auto; }
  .knowledge-controls { grid-template-columns: 1fr; }
  .filters { justify-content: flex-start; overflow-x: auto; padding-bottom: 4px; flex-wrap: nowrap; }
  .filter { white-space: nowrap; }
  .article-grid { grid-template-columns: 1fr; }
  .calc-grid, .calc-breakdown { grid-template-columns: 1fr; }
  .tool-info, .calculator { padding: 22px; }
  .standards { grid-template-columns: 1fr; }
  .cta-box { padding: 34px 24px; grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; }
  .content-layout { grid-template-columns: 1fr; padding-top: 40px; }
  .side-nav { position: static; display: flex; overflow-x: auto; }
  .side-nav a { border-left: 0; border-bottom: 2px solid var(--line); white-space: nowrap; }
}

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