/* ==========================================================================
   Cascade Protocol site, design system v2 ("Specification", October 2026)

   Loaded on every page. New pages (body.b) use only this file. Older pages
   load css/styles.css first and this file second: section 4 restyles them and
   fixes their mobile layout without changing their markup.

   Mobile rules this file enforces (from the 2026-10-20 audit, where 38 of 45
   pages scrolled sideways on a phone):
   - no fixed-width layout; grid tracks use minmax(0, 1fr)
   - tables scroll inside their own box, never the page
   - long tokens (IRIs, CURIEs, emails, flags) wrap instead of overflowing
   - root font stays 16px on phones; body text 16px+, secondary text 14px+
   - tap targets at least 44px
   - never overflow-x: hidden on html/body to mask a bug
   ========================================================================== */

/* 1. Tokens ---------------------------------------------------------------- */

:root {
    --ink: #14202a;
    --ink-2: #3a4853;
    --muted: #5a6873;
    --pencil: #b4410c;
    --link: #0b6a8a;
    --link-hover: #084f68;
    --rule: #c9d1d6;
    --rule-soft: #e3e8eb;
    --paper: #f6f7f8;
    --amber: #8a5a0d;
    --serif: 'Newsreader', Georgia, 'Times New Roman', serif;
    --sans: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --mono: 'IBM Plex Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
    --wrap: 1200px;
    --gutter: 32px;
}

@media (max-width: 760px) {
    :root { --gutter: 16px; }
}

/* 2. Shared chrome: alpha strip, header, footer ----------------------------- */

.sx-strip {
    background: var(--ink);
    color: #ffffff;
    font-family: var(--mono);
    font-size: 13px;
    line-height: 1.4;
    letter-spacing: .02em;
    padding: 10px 16px;
    text-align: center;
}
.sx-strip a { color: #ffb38a; font-weight: 500; text-decoration: none; }
.sx-strip a:hover { text-decoration: underline; }

.sx-header { background: #ffffff; border-bottom: 1px solid var(--rule); position: relative; z-index: 50; }
.sx-header * { box-sizing: border-box; }
.sx-bar {
    max-width: var(--wrap);
    margin: 0 auto;
    padding: 0 var(--gutter);
    min-height: 64px;
    display: flex;
    align-items: center;
    gap: 4px;
}
.sx-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 44px;
    margin-right: auto;
    color: var(--ink);
    font-family: var(--sans);
    font-weight: 600;
    font-size: 17px;
    text-decoration: none;
}
.sx-logo:hover { color: var(--ink); text-decoration: none; }
.sx-logo svg { flex: none; }
.sx-nav { display: flex; align-items: center; gap: 2px; }
.sx-nav a {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 0 12px;
    color: var(--ink);
    font-family: var(--sans);
    font-size: 15px;
    text-decoration: none;
    border-bottom: 2px solid transparent;
}
.sx-nav a:hover { border-bottom-color: var(--rule); color: var(--ink); text-decoration: none; }
.sx-nav a[aria-current="page"] { border-bottom-color: var(--pencil); font-weight: 600; }

.sx-menu { display: none; }
.sx-menu summary {
    list-style: none;
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 0 16px;
    border: 1px solid var(--ink);
    font-family: var(--sans);
    font-size: 15px;
    color: var(--ink);
    cursor: pointer;
}
.sx-menu summary::-webkit-details-marker { display: none; }
.sx-menu[open] summary { background: var(--ink); color: #ffffff; }
.sx-menu nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    background: #ffffff;
    border-bottom: 1px solid var(--rule);
    padding: 4px var(--gutter) 16px;
    display: flex;
    flex-direction: column;
}
.sx-menu nav a {
    display: flex;
    align-items: center;
    min-height: 52px;
    font-family: var(--serif);
    font-size: 24px;
    color: var(--ink);
    text-decoration: none;
    border-bottom: 1px solid var(--rule-soft);
}

@media (max-width: 860px) {
    .sx-nav { display: none; }
    .sx-menu { display: block; }
}

.sx-footer { background: #ffffff; font-family: var(--sans); color: var(--ink); margin-top: 0; padding: 0; border: 0; }
.sx-footer * { box-sizing: border-box; }
.sx-footer-wrap {
    max-width: var(--wrap);
    margin: 0 auto;
    padding: 40px var(--gutter);
}
.sx-footer-inner { border-top: 3px solid var(--ink); padding-top: 32px; }
.sx-footer-cols {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 190px), 1fr));
    gap: 32px;
}
.sx-footer h2 {
    font-family: var(--mono);
    font-size: 13px;
    font-weight: 500;
    color: var(--pencil);
    margin: 0 0 6px;
    line-height: 1.4;
}
.sx-footer ul { list-style: none; margin: 0; padding: 0; }
.sx-footer li a {
    display: flex;
    align-items: center;
    min-height: 40px;
    color: var(--ink);
    font-size: 15px;
    text-decoration: none;
    border-bottom: 1px solid var(--rule-soft);
}
.sx-footer li a:hover { color: var(--link); }
.sx-footer p { margin: 0 0 12px; font-size: 15px; line-height: 1.5; color: var(--ink-2); }
.sx-footer-legal {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 24px;
    margin-top: 32px;
    padding-top: 18px;
    border-top: 1px solid var(--rule);
    font-size: 14px;
    line-height: 1.5;
    color: var(--muted);
}
.sx-footer-legal span { margin-right: auto; }
.sx-footer-legal a { color: var(--muted); display: inline-flex; align-items: center; min-height: 32px; }

/* 3. New pages (body.b) ---------------------------------------------------- */

body.b {
    margin: 0;
    background: #ffffff;
    color: var(--ink);
    font-family: var(--sans);
    font-size: 17px;
    line-height: 1.6;
    overflow-wrap: break-word;
    -webkit-font-smoothing: antialiased;
}
body.b *, body.b *::before, body.b *::after { box-sizing: border-box; }
body.b a { color: var(--link); text-underline-offset: 3px; }
body.b a:hover { color: var(--link-hover); }
body.b img, body.b svg, body.b video { max-width: 100%; height: auto; }
body.b code {
    font-family: var(--mono);
    font-size: .86em;
    background: #f0f2f4;
    padding: 1px 5px;
    overflow-wrap: anywhere;
    hyphens: none;
}
body.b :focus-visible { outline: 2px solid var(--link); outline-offset: 2px; }

.b-skip { position: absolute; left: -9999px; }
.b-skip:focus { left: 16px; top: 8px; z-index: 100; background: #ffffff; padding: 8px 12px; }

.b-wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.b-grid { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 32px; }
.b-hero { padding: 72px 0 64px; }
.b-sec { padding: 32px 0 80px; border-top: 1px solid var(--ink); }
.b-sec-major { padding: 48px 0 88px; border-top: 3px solid var(--ink); }
.b-margin { font-family: var(--mono); font-size: 13px; line-height: 1.8; color: var(--muted); margin: 0; }
.b-margin a { color: var(--muted); }
.b-mark { font-family: var(--mono); font-size: 13px; color: var(--pencil); margin: 0; }
.b-side { margin: 6px 0 0; font-size: 15px; color: var(--muted); }
.b-h1 {
    font-family: var(--serif);
    font-weight: 500;
    font-size: clamp(42px, 6vw, 84px);
    line-height: 1.03;
    letter-spacing: -.02em;
    margin: 0;
}
.b-h2 {
    font-family: var(--serif);
    font-weight: 500;
    font-size: clamp(28px, 3.6vw, 46px);
    line-height: 1.1;
    letter-spacing: -.01em;
    margin: 0 0 16px;
}
.b-h3 { font-family: var(--serif); font-weight: 500; font-size: 28px; line-height: 1.15; margin: 0 0 8px; }
.b-lead { font-size: clamp(18px, 1.6vw, 20px); line-height: 1.55; color: var(--ink-2); margin: 20px 0 0; max-width: 680px; }
.b-p { margin: 0 0 16px; color: var(--ink-2); max-width: 700px; }
.b-read { max-width: 720px; }
.b-small { font-size: 15px; color: var(--muted); }

.b-btns { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.b-btn, .b-btn2 {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0 22px;
    font-weight: 600;
    font-size: 16px;
    text-decoration: none !important;
}
.b-btn { background: var(--ink); color: #ffffff !important; }
.b-btn:hover { background: #24384a; }
button.b-btn { border: 0; border-radius: 0; font-family: inherit; cursor: pointer; }
button.b-btn:disabled { opacity: .6; cursor: default; }
.b-btn2 { border: 1px solid var(--ink); color: var(--ink) !important; background: #ffffff; }
.b-btn2:hover { background: var(--paper); }

.b-paths { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); border-top: 1px solid var(--rule); margin-top: 36px; }
.b-paths a { display: flex; flex-direction: column; gap: 2px; padding: 18px 24px 18px 0; color: var(--ink); text-decoration: none; border-bottom: 1px solid var(--rule); }
.b-paths a:hover .t { color: var(--link); }
.b-paths .t { font-family: var(--serif); font-size: 28px; line-height: 1.2; }
.b-paths .s { font-size: 15px; color: var(--muted); }

.b-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--pencil);
    color: #ffffff;
    font-family: var(--mono);
    font-size: 12px;
    flex: none;
    vertical-align: middle;
}
.b-specimen { display: flex; flex-wrap: wrap; gap: 32px; }
.b-specimen pre {
    flex: 1 1 600px;
    min-width: 0;
    margin: 0;
    font-family: var(--mono);
    font-size: 13px;
    line-height: 2;
    white-space: pre;
    overflow-x: auto;
    background: var(--paper);
    padding: 22px 24px;
    border: 1px solid var(--rule);
}
.b-num.blank { visibility: hidden; }
.b-specimen ol { flex: 1 1 240px; min-width: 0; list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 18px; }
.b-specimen li { display: flex; gap: 12px; font-size: 16px; }
.b-specimen .b-c { color: var(--muted); }

.b-six { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); border-top: 1px solid var(--rule); margin-top: 32px; }
.b-six > div { padding: 22px 24px 22px 0; border-bottom: 1px solid var(--rule); }
.b-six h3 { margin: 4px 0 6px; font-size: 19px; line-height: 1.3; font-family: var(--sans); font-weight: 600; }
.b-six p { margin: 0; font-size: 16px; color: var(--ink-2); }
.b-six .n { font-family: var(--mono); font-size: 13px; color: var(--muted); }

.b-flow { display: grid; grid-template-columns: minmax(0, 1fr) 40px minmax(0, 1fr) 40px minmax(0, 1fr); margin-top: 32px; }
.b-flow .box { border: 1px solid var(--ink); padding: 20px; }
.b-flow .arr { display: flex; align-items: center; justify-content: center; font-family: var(--mono); color: var(--pencil); font-size: 20px; }
.b-flow h3 { font-family: var(--serif); font-weight: 500; font-size: 24px; margin: 6px 0 8px; line-height: 1.15; }
.b-flow p { margin: 0; font-size: 15px; color: var(--ink-2); }

.b-rows { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--rule); }
.b-rows > li { border-bottom: 1px solid var(--rule); }

.b-app { display: flex; flex-wrap: wrap; gap: 8px 24px; padding: 22px 0; border-bottom: 1px solid var(--rule); }
.b-app h3 { font-family: var(--serif); font-weight: 500; font-size: 30px; margin: 0; flex: 1 1 220px; line-height: 1.15; }
.b-app p { margin: 0; flex: 3 1 360px; font-size: 16px; color: var(--ink-2); }
.b-stage { display: block; font-family: var(--mono); font-size: 12px; letter-spacing: .05em; text-transform: uppercase; margin: 0 0 2px; }
.b-stage.live { color: var(--link); }
.b-stage.dev { color: var(--amber); }
.b-stage.plan { color: var(--muted); }

.b-entry { display: grid; grid-template-columns: 200px minmax(0, 1fr) minmax(0, 1.3fr); gap: 16px 32px; padding: 28px 0 36px; border-top: 1px solid var(--ink); }
.b-entry h2 { font-family: var(--serif); font-weight: 500; font-size: 34px; line-height: 1.1; margin: 0 0 10px; }
.b-entry dl, .b-dl { margin: 0; display: grid; grid-template-columns: max-content minmax(0, 1fr); border-top: 1px solid var(--rule); }
.b-entry dt, .b-entry dd, .b-dl dt, .b-dl dd { padding: 10px 0; border-bottom: 1px solid var(--rule); margin: 0; }
.b-entry dt, .b-dl dt { font-family: var(--mono); font-size: 12px; letter-spacing: .05em; text-transform: uppercase; color: var(--muted); padding-right: 20px; padding-top: 13px; }
.b-entry dd, .b-dl dd { color: var(--ink-2); font-size: 16px; }

.b-step { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 32px; padding: 28px 0 36px; border-top: 1px solid var(--rule); }
.b-step h3 { font-family: var(--serif); font-weight: 500; font-size: 30px; margin: 0 0 6px; line-height: 1.15; }
.b-step p { margin: 0 0 14px; color: var(--ink-2); }
.b-meta { display: flex; flex-wrap: wrap; gap: 6px 20px; margin-top: 22px; font-family: var(--mono); font-size: 13px; color: var(--muted); }

.b-code { position: relative; margin: 0 0 16px; }
.b-pre, .b-code pre {
    font-family: var(--mono);
    font-size: 14px;
    line-height: 1.75;
    background: var(--ink);
    color: #dbe4ea;
    padding: 18px 20px;
    overflow-x: auto;
    white-space: pre;
    margin: 0;
    max-width: 100%;
}
.b-code pre { padding-right: 96px; }
.b-pre .c, .b-code .c { color: #8ea3b0; }
.b-pre .o, .b-code .o { color: #9fe0bd; }
.b-copy {
    position: absolute;
    top: 8px;
    right: 8px;
    min-height: 44px;
    min-width: 72px;
    border: 1px solid #3a5568;
    background: #1d2d3a;
    color: #dbe4ea;
    font: inherit;
    font-size: 14px;
    cursor: pointer;
}

.b-tabs { display: flex; margin: 0 0 -1px; }
.b-tab {
    min-height: 44px;
    padding: 0 18px;
    border: 1px solid var(--ink);
    background: #ffffff;
    font: inherit;
    font-size: 15px;
    color: var(--ink);
    cursor: pointer;
    margin-right: -1px;
}
.b-tab[aria-selected="true"] { background: var(--ink); color: #ffffff; }

.b-links { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); border-top: 1px solid var(--rule); }
.b-links a { display: flex; flex-direction: column; padding: 18px 24px 18px 0; border-bottom: 1px solid var(--rule); color: var(--ink); text-decoration: none; height: 100%; }
.b-links a:hover b { color: var(--link); }
.b-links b { font-family: var(--serif); font-weight: 500; font-size: 24px; }
.b-links span { color: var(--ink-2); font-size: 15px; }

.b-ways { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--rule); }
.b-ways li { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 32px; padding: 22px 0; border-bottom: 1px solid var(--rule); }
.b-ways li > div { flex: 1 1 420px; min-width: 0; }
.b-ways b { display: block; font-family: var(--serif); font-weight: 500; font-size: 26px; line-height: 1.2; }
.b-ways span { color: var(--ink-2); font-size: 16px; }

.b-people { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); border-top: 1px solid var(--rule); }
.b-person { padding: 24px 24px 24px 0; border-bottom: 1px solid var(--rule); }
.b-person h3 { font-family: var(--serif); font-weight: 500; font-size: 30px; margin: 0; line-height: 1.1; }
.b-person .role { font-family: var(--mono); font-size: 13px; color: var(--muted); margin: 4px 0 0; }
.b-person p { margin: 8px 0 0; font-size: 16px; color: var(--ink-2); }

.b-ledger { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); gap: 0 32px; }
.b-ledger h3 { font-family: var(--mono); font-size: 13px; font-weight: 500; letter-spacing: .05em; text-transform: uppercase; margin: 0; padding: 0 0 10px; border-bottom: 3px solid currentColor; }
.b-ledger ul { list-style: none; margin: 0 0 24px; padding: 0; }
.b-ledger li { padding: 12px 0; border-bottom: 1px solid var(--rule); font-size: 15px; line-height: 1.5; color: var(--ink-2); }
.b-ledger li b { color: var(--ink); }

.b-tw { overflow-x: auto; max-width: 100%; margin-top: 20px; }
.b-t { width: 100%; min-width: 540px; border-collapse: collapse; font-size: 15px; }
.b-t th { text-align: left; font-family: var(--mono); font-size: 12px; letter-spacing: .05em; text-transform: uppercase; color: var(--muted); font-weight: 500; padding: 10px 16px 10px 0; border-bottom: 1px solid var(--ink); }
.b-t td { padding: 11px 16px 11px 0; border-bottom: 1px solid var(--rule); vertical-align: top; }
.b-t td.v { font-family: var(--mono); font-size: 14px; }

.b-layers { border-top: 1px solid var(--ink); margin-top: 24px; }
.b-layers > div { display: grid; grid-template-columns: 140px minmax(0, 1fr); gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--rule); }
.b-layers b { display: block; font-size: 18px; }
.b-layers .s { font-size: 15px; color: var(--ink-2); }

.b-prov { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); border-top: 1px solid var(--rule); margin-top: 20px; }
.b-prov div { padding: 14px 20px 14px 0; border-bottom: 1px solid var(--rule); }
.b-prov code { color: var(--link); background: transparent !important; padding: 0 !important; font-size: 14px !important; }
.b-prov p { margin: 2px 0 0; font-size: 15px; color: var(--ink-2); line-height: 1.45; }

.b-not { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); column-gap: 32px; border-top: 1px solid var(--rule); }
.b-not li { padding: 14px 0; border-bottom: 1px solid var(--rule); font-size: 16px; color: var(--ink-2); }
.b-not b { color: var(--ink); }

.b-steps4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr)); border-top: 1px solid var(--rule); }
.b-steps4 div { padding: 18px 20px 18px 0; border-bottom: 1px solid var(--rule); }
.b-steps4 b { display: block; font-family: var(--serif); font-weight: 500; font-size: 24px; margin: 2px 0; }
.b-steps4 p { margin: 0; font-size: 15px; color: var(--ink-2); }

.b-two { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 360px), 1fr)); gap: 48px; }
.b-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--rule); }
.b-list li { padding: 14px 0; border-bottom: 1px solid var(--rule); color: var(--ink-2); }
.b-list b { color: var(--ink); }

.b-form { display: flex; flex-direction: column; gap: 18px; border: 1px solid var(--ink); padding: clamp(18px, 3vw, 28px); }
.b-field { display: flex; flex-direction: column; gap: 6px; }
.b-field label { font-size: 15px; font-weight: 600; }
.b-field input, .b-field textarea, .b-field select {
    font: inherit;
    font-size: 16px;
    min-height: 48px;
    padding: 10px 12px;
    border: 1px solid var(--ink);
    border-radius: 0;
    background: #ffffff;
    color: var(--ink);
    width: 100%;
}
.b-field textarea { min-height: 120px; resize: vertical; }
.b-hint { font-size: 14px; color: var(--muted); }

.b-note { border: 1px solid #c98a5e; padding: 14px 18px; margin: 0 0 20px; font-size: 16px; color: #3a2a14; background: #fbf4ee; }
.b-note b.k { display: block; font-family: var(--mono); font-size: 12px; letter-spacing: .05em; text-transform: uppercase; color: var(--pencil); margin-bottom: 2px; }

@media (max-width: 760px) {
    .b-grid, .b-step, .b-entry { grid-template-columns: minmax(0, 1fr); gap: 10px; }
    .b-hero { padding: 48px 0 40px; }
    .b-sec { padding: 24px 0 56px; }
    .b-sec-major { padding: 32px 0 64px; }
    .b-flow { grid-template-columns: 1fr; }
    .b-flow .arr { height: 36px; transform: rotate(90deg); }
    .b-entry dl, .b-dl { grid-template-columns: 1fr; }
    .b-entry dt, .b-dl dt { border-bottom: 0; padding-bottom: 0; }
    .b-layers > div { grid-template-columns: 1fr; gap: 2px; }
    .b-specimen pre { font-size: 13px; padding: 16px; }
}

/* 4. Older pages: restyle and mobile fixes --------------------------------- */
/* These pages load styles.css first. Override its tokens so they share the
   new type and colours, then fix the layout bugs the audit found. */

body:not(.b) {
    --font-sans: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'IBM Plex Mono', ui-monospace, Menlo, monospace;
    --primary: #14202a;
    --primary-light: #24384a;
    --primary-dark: #0b141b;
    --accent: #0b6a8a;
    --accent-dark: #084f68;
    --text: #14202a;
    --text-secondary: #3a4853;
    --text-muted: #5a6873;
    --border: #c9d1d6;
    --code-inline-text: #14202a;
    overflow-wrap: break-word;
}
body:not(.b) h1, body:not(.b) h2 {
    font-family: 'Newsreader', Georgia, serif;
    font-weight: 500;
    letter-spacing: -.01em;
}
body:not(.b) main h1, body:not(.b) .hero h1, body:not(.b) .page-header h1 { line-height: 1.1; }
body:not(.b) a { text-underline-offset: 3px; }

/* Long tokens: IRIs, CURIEs, paths, emails, term-name headings. */
body:not(.b) code,
body:not(.b) td,
body:not(.b) th,
body:not(.b) dd,
body:not(.b) h3,
body:not(.b) h4,
body:not(.b) a[href^="mailto:"],
body:not(.b) .prov-uri {
    overflow-wrap: anywhere;
    hyphens: none;
}
body:not(.b) pre { overflow-x: auto; max-width: 100%; }
body:not(.b) img, body:not(.b) video, body:not(.b) canvas, body:not(.b) iframe { max-width: 100%; height: auto; }

/* Grid and flex children may shrink below their content. */
body:not(.b) [class*="grid"] > *,
body:not(.b) [class*="card"],
body:not(.b) .comparison-verdict > * { min-width: 0; }
body:not(.b) .status-badge { white-space: normal; }
body:not(.b) .card-header { flex-wrap: wrap; }

@media (max-width: 768px) {
    /* styles.css shrank the root to 15px, pushing secondary text under 14px. */
    :root { font-size: 16px; }

    /* Tables scroll inside themselves instead of widening the page. */
    body:not(.b) main table,
    body:not(.b) .container table,
    body:not(.b) .data-table,
    body:not(.b) .vocab-table,
    body:not(.b) .cmd-table,
    body:not(.b) .version-table,
    body:not(.b) .extras-table,
    body:not(.b) .prov-table {
        display: block;
        max-width: 100%;
        overflow-x: auto;
        font-size: 14px;
    }
    body:not(.b) .app-info-box dl { grid-template-columns: minmax(0, 1fr); }
    body:not(.b) h1 { font-size: clamp(30px, 8vw, 40px); }
    body:not(.b) .breadcrumb a, body:not(.b) nav.breadcrumb a { display: inline-flex; align-items: center; min-height: 40px; }
    body:not(.b) .copy-btn { min-height: 44px; min-width: 64px; }
}
.b-t code { white-space: nowrap; }

/* Reference hub: jump menu and reference rows */
.b-jump { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 28px; padding: 0; list-style: none; }
.b-jump a { display: inline-flex; align-items: center; min-height: 44px; padding: 0 16px; border: 1px solid var(--ink); color: var(--ink) !important; text-decoration: none; font-size: 15px; }
.b-jump a:hover { background: var(--paper); }
.b-ref { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--ink); }
.b-ref > li { border-bottom: 1px solid var(--rule); }
.b-ref a { display: grid; grid-template-columns: 180px minmax(0, 1fr) auto; gap: 4px 24px; align-items: baseline; padding: 14px 0; color: var(--ink); text-decoration: none; }
.b-ref a:hover .t { color: var(--link); text-decoration: underline; }
.b-ref .t { font-family: var(--serif); font-size: 22px; line-height: 1.2; }
.b-ref .d { color: var(--ink-2); font-size: 16px; }
.b-ref .m { font-family: var(--mono); font-size: 13px; color: var(--muted); white-space: nowrap; }
.b-ref .m.draft { color: var(--amber); }
.b-ref .t { grid-column: 1; grid-row: 1; }
.b-ref .d { grid-column: 2; grid-row: 1; }
.b-ref .m { grid-column: 3; grid-row: 1; text-align: right; }
.b-sub { font-family: var(--mono); font-size: 13px; color: var(--muted); margin: 28px 0 8px; }
@media (max-width: 760px) {
    .b-ref a { grid-template-columns: minmax(0, 1fr) auto; }
    .b-ref .m { grid-column: 2; grid-row: 1; }
    .b-ref .d { grid-column: 1 / -1; grid-row: 2; }
}

/* Figures and labelled rows (Cascade Bridge) */
.b-fig { margin: 28px 0 0; }
.b-fig img, .b-fig video { display: block; width: 100%; height: auto; border: 1px solid var(--rule); background: var(--paper); }
.b-fig figcaption { margin-top: 8px; font-size: 14px; color: var(--muted); }
.b-pillar { display: grid; grid-template-columns: 140px minmax(0, 1fr); gap: 4px 24px; padding: 14px 0; }
.b-pillar .t { font-family: var(--serif); font-size: 22px; line-height: 1.2; }
.b-pillar .d { color: var(--ink-2); font-size: 16px; }
@media (max-width: 760px) { .b-pillar { grid-template-columns: minmax(0, 1fr); } }
.b-details { margin-top: 16px; }
.b-details summary { display: inline-flex; align-items: center; min-height: 44px; cursor: pointer; color: var(--link); font-weight: 500; }
.b-details[open] summary { margin-bottom: 8px; }