:root {
  color-scheme: dark;
  --ink: #edf7f4;
  --muted: #a8bfba;
  --faint: #708884;
  --base: #071114;
  --surface: #0a181b;
  --surface-2: #0d2023;
  --surface-3: #10282b;
  --line: #1b3a3d;
  --line-bright: #2b5f60;
  --mint: #79ead7;
  --mint-dim: #41bda9;
  --amber: #f0b35a;
  --danger: #f08b72;
  --max: 1180px;
  --radius: 18px;
  --shadow: 0 30px 90px rgb(0 0 0 / 0.32);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 0%, rgb(32 93 91 / 0.18), transparent 34rem),
    var(--base);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

a { color: inherit; text-underline-offset: 0.22em; }
a:hover { color: var(--mint); }
img, svg { display: block; max-width: 100%; }
code, pre { font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace; }
code { color: #a4f3e4; font-size: 0.92em; }
pre {
  margin: 1.8rem 0;
  padding: 1.25rem;
  overflow: auto;
  color: #c9eee7;
  background: #061012;
  border: 1px solid var(--line);
  border-radius: 12px;
  font-size: 0.83rem;
  line-height: 1.6;
}

.wrap { width: min(calc(100% - 40px), var(--max)); margin-inline: auto; }
.skip-link { position: fixed; top: 12px; left: 12px; z-index: 100; transform: translateY(-150%); padding: 10px 14px; color: var(--base); background: var(--mint); border-radius: 8px; font-weight: 700; }
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgb(7 17 20 / 0.88);
  border-bottom: 1px solid rgb(43 95 96 / 0.4);
  backdrop-filter: blur(18px);
}
.header-inner { min-height: 76px; display: flex; align-items: center; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; font-size: 1.08rem; font-weight: 760; letter-spacing: -0.02em; }
.brand svg { width: 34px; height: 34px; }
.brand svg rect { fill: var(--surface-3); stroke: var(--line-bright); }
.brand svg path { fill: var(--mint); }
.site-header nav { display: flex; align-items: center; gap: 6px; margin-left: auto; }
.site-header nav a { padding: 7px 11px; color: var(--muted); text-decoration: none; border-radius: 7px; font-size: 0.88rem; font-weight: 620; }
.site-header nav a:hover, .site-header nav a[aria-current="page"] { color: var(--ink); background: var(--surface-2); }
.site-header nav a[aria-current="page"] { box-shadow: inset 0 -2px var(--mint-dim); }
.github-link { flex: none; color: var(--mint); text-decoration: none; font-size: 0.88rem; font-weight: 700; }

.hero { display: grid; grid-template-columns: 1.08fr 0.92fr; align-items: center; gap: clamp(40px, 7vw, 96px); min-height: 730px; padding-block: 100px; }
.eyebrow { margin: 0 0 14px; color: var(--mint); font-family: "SFMono-Regular", Consolas, monospace; font-size: 0.76rem; font-weight: 760; letter-spacing: 0.13em; text-transform: uppercase; }
h1, h2, h3 { margin-top: 0; line-height: 1.12; letter-spacing: -0.035em; }
h1 { margin-bottom: 24px; font-size: clamp(3rem, 6.8vw, 5.65rem); font-weight: 780; }
h2 { margin-bottom: 18px; font-size: clamp(2rem, 4vw, 3.45rem); font-weight: 740; }
h3 { margin-bottom: 10px; font-size: 1.22rem; }
.hero-lede, .page-hero > p:last-child { max-width: 740px; color: var(--muted); font-size: clamp(1.05rem, 1.7vw, 1.25rem); }
.hero-lede a { color: var(--ink); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; padding: 0 19px; border: 1px solid transparent; border-radius: 9px; text-decoration: none; font-size: 0.9rem; font-weight: 740; transition: transform 150ms ease, background 150ms ease, border-color 150ms ease; }
.button:hover { transform: translateY(-2px); }
.button.primary { color: #041310; background: var(--mint); box-shadow: 0 10px 35px rgb(121 234 215 / 0.15); }
.button.primary:hover { color: #041310; background: #a0f3e5; }
.button.secondary { color: var(--ink); background: var(--surface-2); border-color: var(--line-bright); }
.button.secondary:hover { background: var(--surface-3); border-color: var(--mint-dim); }
.availability { display: flex; align-items: center; gap: 9px; margin-top: 24px; color: var(--faint); font-size: 0.82rem; }
.signal { width: 7px; height: 7px; background: var(--amber); border-radius: 50%; box-shadow: 0 0 0 5px rgb(240 179 90 / 0.1); }

.hero-console { position: relative; padding: 22px; background: linear-gradient(155deg, rgb(15 42 44 / 0.96), rgb(7 19 22 / 0.96)); border: 1px solid var(--line-bright); border-radius: 22px; box-shadow: var(--shadow); }
.hero-console::before { content: ""; position: absolute; inset: -32px 32px auto; height: 220px; z-index: -1; background: rgb(50 169 151 / 0.15); filter: blur(70px); }
.console-bar { display: flex; justify-content: space-between; padding-bottom: 15px; color: var(--faint); border-bottom: 1px solid var(--line); font: 0.72rem/1.4 "SFMono-Regular", Consolas, monospace; text-transform: uppercase; letter-spacing: 0.08em; }
.console-state { color: var(--mint); }
.console-focus { padding: 28px 0 24px; }
.console-focus p { margin: 0 0 5px; color: var(--faint); font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.09em; }
.console-focus strong { display: block; font-size: 1.42rem; letter-spacing: -0.025em; }
.console-focus span { display: block; margin-top: 5px; color: var(--muted); font-size: 0.82rem; }
.console-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; margin: 0; overflow: hidden; background: var(--line); border: 1px solid var(--line); border-radius: 12px; }
.console-grid div { padding: 14px; background: #09181a; }
.console-grid dt { color: var(--faint); font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.08em; }
.console-grid dd { margin: 3px 0 0; color: #d3e6e2; font-size: 0.78rem; }
.console-note { margin: 16px 0 0; color: var(--faint); font-size: 0.7rem; }
.console-note a { color: var(--muted); }
.certificate-panel progress { display: block; width: 100%; height: 8px; margin: 0 0 24px; overflow: hidden; border: 0; border-radius: 8px; background: var(--surface-3); }
.certificate-panel progress::-webkit-progress-bar { background: var(--surface-3); }
.certificate-panel progress::-webkit-progress-value { background: var(--mint-dim); }
.certificate-panel progress::-moz-progress-bar { background: var(--mint-dim); }
.status-details { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; margin: 0; overflow: hidden; background: var(--line); border: 1px solid var(--line); border-radius: 12px; }
.status-details div { min-width: 0; padding: 15px; background: #09181a; }
.status-details div:last-child { grid-column: 1 / -1; }
.status-details dt { color: var(--faint); font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.08em; }
.status-details dd { margin: 4px 0 0; overflow-wrap: anywhere; color: #d3e6e2; font: 0.76rem/1.5 "SFMono-Regular", Consolas, monospace; }

.trust-strip { border-block: 1px solid var(--line); background: rgb(10 27 29 / 0.68); }
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.trust-grid div { padding: 23px 22px; border-left: 1px solid var(--line); }
.trust-grid div:last-child { border-right: 1px solid var(--line); }
.trust-grid strong, .trust-grid span { display: block; }
.trust-grid strong { font-size: 0.84rem; }
.trust-grid span { margin-top: 2px; color: var(--faint); font-size: 0.72rem; }

.section { padding-block: 112px; }
.section-toned { background: linear-gradient(180deg, rgb(12 31 34 / 0.88), rgb(8 21 23 / 0.88)); border-block: 1px solid var(--line); }
.section-heading { max-width: 780px; margin-bottom: 52px; }
.section-heading > p:last-child, .split-heading > p { color: var(--muted); }
.split-heading { display: grid; grid-template-columns: 1fr 0.75fr; gap: 80px; max-width: none; align-items: end; }
.split-heading h2 { margin-bottom: 0; }
.split-heading > p { margin: 0; }
.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.feature-card { min-height: 270px; padding: 32px; background: linear-gradient(145deg, var(--surface-2), #09171a); border: 1px solid var(--line); border-radius: var(--radius); }
.feature-card:hover { border-color: var(--line-bright); }
.feature-card h3 { margin-top: 45px; font-size: 1.45rem; }
.feature-card p { color: var(--muted); }
.card-index { color: var(--amber); font: 0.76rem "SFMono-Regular", Consolas, monospace; }

.steps { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 48px 72px; margin: 0; padding: 0; }
.steps li { display: grid; grid-template-columns: 48px 1fr; gap: 18px; }
.steps li > span { display: grid; width: 42px; height: 42px; place-items: center; color: var(--mint); background: var(--surface-3); border: 1px solid var(--line-bright); border-radius: 50%; font: 0.75rem "SFMono-Regular", Consolas, monospace; }
.steps h3 { margin-top: 6px; }
.steps p { margin-bottom: 0; color: var(--muted); }

.coverage-layout { display: grid; grid-template-columns: 1fr 1fr 0.75fr; gap: 20px; margin-bottom: 30px; }
.coverage-block { padding: 28px; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; }
.coverage-block h3 { font-size: 0.92rem; }
.tag-list { display: flex; flex-wrap: wrap; gap: 8px; margin: 22px 0 0; padding: 0; list-style: none; }
.tag-list li { padding: 7px 10px; color: var(--muted); background: var(--surface-2); border: 1px solid var(--line); border-radius: 6px; font-size: 0.78rem; }
.text-link { color: var(--mint); font-weight: 720; text-decoration: none; }

.section-security { background: radial-gradient(circle at 82% 50%, rgb(47 124 118 / 0.2), transparent 35rem), #081719; border-block: 1px solid var(--line); }
.security-callout { display: grid; grid-template-columns: 1fr 0.9fr; gap: 90px; align-items: center; }
.security-callout > div > p:not(.eyebrow) { color: var(--muted); }
.check-list { display: grid; gap: 0; margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.check-list li { position: relative; padding: 15px 10px 15px 32px; color: #d2e3df; border-bottom: 1px solid var(--line); font-size: 0.9rem; }
.check-list li::before { content: ""; position: absolute; left: 5px; top: 21px; width: 8px; height: 4px; border-left: 2px solid var(--mint); border-bottom: 2px solid var(--mint); transform: rotate(-45deg); }

.article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.article-grid article { padding: 26px; background: var(--surface); border: 1px solid var(--line); border-radius: 13px; }
.article-grid h3 a { text-decoration: none; }
.article-grid article > p:last-child { color: var(--muted); font-size: 0.9rem; }
.article-type { color: var(--amber); font: 0.7rem "SFMono-Regular", Consolas, monospace; text-transform: uppercase; letter-spacing: 0.1em; }
.faq { padding-top: 40px; }
.faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.faq details { padding: 20px 22px; background: var(--surface); border: 1px solid var(--line); border-radius: 11px; }
.faq summary { cursor: pointer; font-weight: 700; }
.faq details p { margin-bottom: 0; color: var(--muted); font-size: 0.9rem; }

.cta-band { padding-block: 70px; background: linear-gradient(100deg, #113633, #0b2425); border-block: 1px solid #2c625f; }
.cta-band > .wrap { display: flex; justify-content: space-between; gap: 40px; align-items: center; }
.cta-band h2 { max-width: 720px; margin-bottom: 0; font-size: clamp(1.8rem, 3vw, 2.7rem); }
.cta-band .actions { flex: none; margin: 0; }

.page-hero { padding-block: 120px 100px; border-bottom: 1px solid var(--line); }
.page-hero h1 { max-width: 1000px; font-size: clamp(3rem, 6vw, 5.2rem); }
.prose-intro { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 100px; }
.prose-intro h2 { font-size: clamp(2rem, 3.5vw, 3.1rem); }
.prose-intro > div:last-child { color: var(--muted); font-size: 1.06rem; }
.capability-list { display: grid; }
.capability-list article { display: grid; grid-template-columns: 0.42fr 0.7fr 1fr; gap: 55px; padding-block: 60px; border-bottom: 1px solid var(--line); }
.capability-list article:last-child { border-bottom: 0; }
.capability-list article .eyebrow { margin-top: 7px; }
.capability-list article h2 { font-size: clamp(1.7rem, 2.8vw, 2.5rem); }
.capability-list article > p:not(.eyebrow) { margin-top: 5px; color: var(--muted); }
.boundary-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; overflow: hidden; background: var(--line); border: 1px solid var(--line); border-radius: 15px; }
.boundary-grid > div { min-height: 190px; padding: 28px; background: var(--surface); }
.boundary-grid p { color: var(--muted); font-size: 0.9rem; }
.fit-section { background: #091a1c; border-top: 1px solid var(--line); }
.fit-section > .wrap { display: grid; grid-template-columns: 1fr 0.9fr; gap: 90px; }
.fit-section > .wrap > div > p:last-child { color: var(--muted); }
.fit-table { margin: 0; border-top: 1px solid var(--line); }
.fit-table div { display: grid; grid-template-columns: 0.8fr 1fr; gap: 20px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.fit-table dt { color: var(--faint); font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.08em; }
.fit-table dd { margin: 0; font-size: 0.88rem; }

.provider-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.provider-grid article { padding: 28px; background: var(--surface); border: 1px solid var(--line); border-radius: 13px; }
.provider-grid p { color: var(--muted); font-size: 0.9rem; }
.provider-detail-list { border-top: 1px solid var(--line); }
.provider-detail-list article { display: grid; grid-template-columns: 0.55fr 1fr; gap: 70px; padding: 42px 0; border-bottom: 1px solid var(--line); }
.provider-name { display: grid; grid-template-columns: 45px 1fr; gap: 16px; align-items: start; }
.provider-name > span { display: grid; width: 44px; height: 44px; place-items: center; color: var(--mint); background: var(--surface-3); border: 1px solid var(--line-bright); border-radius: 9px; font: 0.72rem "SFMono-Regular", Consolas, monospace; }
.provider-name h3 { margin-top: 9px; }
.provider-detail-list article > div:last-child > p:first-child { margin-top: 0; color: var(--muted); }
.provider-note { color: var(--faint); font-size: 0.84rem; }
.compatibility-note { background: radial-gradient(circle at 15% 20%, rgb(121 234 215 / 0.1), transparent 30rem), var(--surface); border-block: 1px solid var(--line); }
.compatibility-note .wrap { max-width: 900px; }
.compatibility-note p:not(.eyebrow) { color: var(--muted); }

.security-pillars { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; padding: 1px; background: var(--line); }
.security-pillars article { min-height: 330px; padding: 36px; background: var(--surface); }
.security-pillars article > span { color: var(--amber); font: 0.74rem "SFMono-Regular", Consolas, monospace; }
.security-pillars h2 { margin-top: 38px; font-size: 1.65rem; }
.security-pillars p { color: var(--muted); }
.incident-section { background: #102b2c; border-block: 1px solid var(--line-bright); }
.incident-section .wrap { display: flex; align-items: center; justify-content: space-between; gap: 80px; }
.incident-section .wrap > div { max-width: 780px; }
.incident-section p:not(.eyebrow) { color: var(--muted); }
.operator-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.operator-list li { display: grid; grid-template-columns: 0.7fr 1.3fr; gap: 50px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.operator-list span { color: var(--muted); }

.article-list { border-top: 1px solid var(--line); }
.article-list article { display: flex; align-items: start; justify-content: space-between; gap: 50px; padding: 36px 0; border-bottom: 1px solid var(--line); }
.article-list h2 { margin-bottom: 10px; font-size: clamp(1.55rem, 2.6vw, 2.3rem); }
.article-list h2 a { text-decoration: none; }
.article-list article div > p:last-child { max-width: 820px; margin-bottom: 0; color: var(--muted); }
.article-list article > span { flex: none; margin-top: 7px; color: var(--faint); font: 0.72rem "SFMono-Regular", Consolas, monospace; }
.principle-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 50px; }
.principle-grid h2 { font-size: 1.4rem; }
.principle-grid p { color: var(--muted); }

.priority-list { display: grid; gap: 1px; margin: 0; padding: 1px; list-style: none; background: var(--line); }
.priority-list li { display: grid; grid-template-columns: 60px 1fr; gap: 22px; padding: 28px; background: var(--surface); }
.priority-list li > span { display: grid; width: 44px; height: 44px; place-items: center; color: var(--mint); border: 1px solid var(--line-bright); border-radius: 50%; font: 0.78rem "SFMono-Regular", Consolas, monospace; }
.priority-list p, .roadmap-grid p, .contribution-grid p, .sponsor-grid p { color: var(--muted); }
.roadmap-grid, .sponsor-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.roadmap-grid article, .sponsor-grid article { padding: 30px; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; }
.status-pill { display: inline-block; margin: 0 0 28px; padding: 5px 8px; color: var(--amber) !important; background: rgb(240 179 90 / 0.08); border: 1px solid rgb(240 179 90 / 0.3); border-radius: 5px; font: 0.68rem "SFMono-Regular", Consolas, monospace; text-transform: uppercase; letter-spacing: 0.08em; }
.contribution-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.contribution-grid article { padding: 32px; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; }
.contribution-grid h2 { margin-top: 35px; font-size: 1.6rem; }
.sponsor-featured { border-color: var(--mint-dim) !important; box-shadow: 0 20px 60px rgb(65 189 169 / 0.08); }
.sponsor-grid h2 { font-size: 2rem; }
.status-layout { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 70px; align-items: center; }
.status-layout > div:last-child > p:not(.eyebrow) { color: var(--muted); }
.alert-layout { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 80px; align-items: center; }
.alert-layout > div > p { color: var(--muted); }
.alert-promises { margin: 28px 0 0; padding-left: 20px; color: var(--muted); }
.alert-form { padding: 30px; background: var(--surface); border: 1px solid var(--line-bright); border-radius: 16px; }
.alert-form > label { display: block; margin-bottom: 9px; color: var(--ink); font-size: 0.84rem; font-weight: 720; }
.alert-form-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 10px; }
.alert-form input { min-width: 0; min-height: 48px; padding: 0 14px; color: var(--ink); background: #061214; border: 1px solid var(--line-bright); border-radius: 9px; font: inherit; }
.alert-form input:focus { border-color: var(--mint); outline: 2px solid rgb(121 234 215 / 0.18); outline-offset: 1px; }
.alert-form button:disabled { cursor: wait; opacity: 0.65; }
.alert-privacy, .alert-result { margin: 14px 0 0; color: var(--faint); font-size: 0.78rem; }
.alert-result { min-height: 1.4em; color: var(--muted); }
.alert-result[data-state="success"] { color: var(--mint); }
.alert-result[data-state="error"] { color: var(--danger); }
.alert-honeypot { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }

.article { padding-block: 105px 130px; }
.article-header { max-width: 980px; padding-bottom: 70px; }
.article-header h1 { font-size: clamp(3rem, 6vw, 5.2rem); }
.article-deck { max-width: 850px; color: var(--muted); font-size: 1.22rem; }
.article-meta { display: flex; gap: 22px; margin-top: 28px; color: var(--faint); font: 0.72rem "SFMono-Regular", Consolas, monospace; }
.article-layout { display: grid; grid-template-columns: 230px minmax(0, 760px); gap: 80px; align-items: start; }
.toc { position: sticky; top: 110px; display: grid; gap: 9px; padding-left: 18px; border-left: 1px solid var(--line-bright); }
.toc strong { margin-bottom: 6px; color: var(--ink); font-size: 0.78rem; }
.toc a { color: var(--faint); font-size: 0.78rem; text-decoration: none; }
.toc a:hover { color: var(--mint); }
.article-body { color: #c0d3cf; }
.article-body > p:first-child { margin-top: 0; color: var(--ink); font-size: 1.16rem; }
.article-body h2 { margin-top: 70px; padding-top: 10px; color: var(--ink); font-size: clamp(1.65rem, 3vw, 2.35rem); scroll-margin-top: 100px; }
.article-body li { margin-bottom: 8px; }
.article-callout { margin: 55px 0; padding: 26px 28px; background: #0d2929; border: 1px solid #2c605c; border-left: 4px solid var(--mint); border-radius: 10px; }
.article-callout strong { color: var(--mint); }
.article-callout p { margin-bottom: 0; }
.reference-list a { color: var(--mint); }

.site-footer { padding-top: 70px; color: var(--muted); background: #050d0f; border-top: 1px solid var(--line); }
.footer-grid { display: grid; grid-template-columns: 1.8fr repeat(3, 1fr); gap: 55px; }
.footer-grid > div { display: flex; flex-direction: column; align-items: start; gap: 8px; }
.footer-grid > div:first-child p { max-width: 320px; margin: 8px 0 0; font-size: 0.84rem; }
.footer-grid strong { margin-bottom: 7px; color: var(--ink); font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.08em; }
.footer-grid a:not(.brand) { color: var(--muted); font-size: 0.82rem; text-decoration: none; }
.footer-grid a:hover { color: var(--mint); }
.quiet { color: var(--faint); }
.footer-bottom { display: flex; justify-content: space-between; margin-top: 65px; padding-block: 22px; color: var(--faint); border-top: 1px solid var(--line); font: 0.7rem "SFMono-Regular", Consolas, monospace; }

@media (max-width: 960px) {
  .header-inner { flex-wrap: wrap; gap: 10px 20px; padding-block: 12px; }
  .site-header nav { order: 3; width: 100%; overflow-x: auto; margin: 0; }
  .github-link { margin-left: auto; }
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .hero-copy { max-width: 760px; }
  .hero-console { max-width: 680px; }
  .trust-grid { grid-template-columns: 1fr 1fr; }
  .trust-grid div:nth-child(3) { border-top: 1px solid var(--line); }
  .trust-grid div:nth-child(4) { border-top: 1px solid var(--line); }
  .split-heading, .prose-intro, .security-callout, .fit-section > .wrap, .alert-layout { grid-template-columns: 1fr; gap: 35px; }
  .coverage-layout, .article-grid, .provider-grid, .principle-grid, .roadmap-grid, .sponsor-grid { grid-template-columns: 1fr 1fr; }
  .boundary-grid { grid-template-columns: 1fr 1fr; }
  .capability-list article { grid-template-columns: 0.45fr 1fr; gap: 25px 40px; }
  .capability-list article > p:last-child { grid-column: 2; }
  .article-layout { grid-template-columns: 1fr; }
  .status-layout { grid-template-columns: 1fr; }
  .toc { position: static; grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1.5fr 1fr 1fr; }
  .footer-grid > div:last-child { grid-column: 2; }
}

@media (max-width: 680px) {
  body { font-size: 16px; }
  .wrap { width: min(calc(100% - 28px), var(--max)); }
  .site-header nav { gap: 0; justify-content: space-between; }
  .site-header nav a { padding: 6px; font-size: 0.76rem; }
  .hero { padding-block: 75px; }
  h1 { font-size: clamp(2.7rem, 14vw, 4rem); }
  .page-hero { padding-block: 80px 65px; }
  .page-hero h1, .article-header h1 { font-size: clamp(2.65rem, 13vw, 4rem); }
  .section { padding-block: 78px; }
  .trust-grid, .feature-grid, .steps, .coverage-layout, .article-grid, .faq-grid, .boundary-grid, .provider-grid, .security-pillars, .principle-grid, .roadmap-grid, .sponsor-grid, .contribution-grid { grid-template-columns: 1fr; }
  .trust-grid div { border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .console-grid { grid-template-columns: 1fr; }
  .feature-card { min-height: auto; }
  .provider-detail-list article, .operator-list li { grid-template-columns: 1fr; gap: 10px; }
  .capability-list article { grid-template-columns: 1fr; gap: 10px; }
  .capability-list article > p:last-child { grid-column: auto; }
  .cta-band > .wrap, .incident-section .wrap { flex-direction: column; align-items: start; }
  .cta-band .actions { width: 100%; }
  .button { width: 100%; }
  .alert-form-row { grid-template-columns: 1fr; }
  .article-list article { flex-direction: column; gap: 10px; }
  .article { padding-block: 70px 95px; }
  .article-header { padding-bottom: 45px; }
  .article-layout { gap: 45px; }
  .toc { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > div:first-child { grid-column: 1 / -1; }
  .footer-grid > div:last-child { grid-column: auto; }
  .footer-bottom { flex-direction: column; gap: 6px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; }
}

@media print {
  .site-header, .site-footer, .cta-band, .toc, .actions { display: none; }
  body { color: #111; background: #fff; }
  a { color: #111; }
  .article-layout { display: block; }
}