/* Evidence Engine — shared styles. Trustworthy, restrained, federal-grade. */
:root {
  --navy: #0f2a44;
  --navy-2: #0b1f33;
  --ink: #1a2632;
  --muted: #5b6b7a;
  --line: #e3e8ee;
  --bg: #f6f8fa;
  --card: #ffffff;
  --green: #1a7f52;
  --green-bg: #e8f5ee;
  --amber: #9a6a00;
  --amber-bg: #fdf3e0;
  --red: #b3261e;
  --red-bg: #fbeceb;
  --accent: #1d5b8f;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font: 15px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink); background: var(--bg); -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

header.site {
  background: var(--navy-2);
  color: #fff; padding: 18px 0;
}
header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { display: flex; align-items: baseline; gap: 10px; }
.brand .mark { font-weight: 800; letter-spacing: -.02em; font-size: 20px; color: #fff; }
.brand .mark b { color: #7fd1a6; }
.brand .tag { color: #b7c6d4; font-size: 12.5px; }
header.site nav a { color: #cfe0ee; font-size: 13.5px; margin-left: 18px; }
header.site nav a:hover { color: #fff; text-decoration: none; }

.wrap { max-width: 860px; margin: 0 auto; padding: 0 20px; }
main { padding: 34px 0 56px; }

h1 { font-size: 26px; letter-spacing: -.02em; margin: 0 0 6px; color: var(--navy-2); }
h2 { font-size: 17px; margin: 0 0 10px; color: var(--navy-2); }
.lede { color: var(--muted); font-size: 15.5px; margin: 0 0 24px; max-width: 60ch; }

.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: 22px; box-shadow: 0 1px 2px rgba(16,32,48,.04); margin-bottom: 18px;
}
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 620px) { .grid2 { grid-template-columns: 1fr; } }

.tile { display: block; color: inherit; }
.tile:hover { border-color: #c7d5e2; text-decoration: none; box-shadow: 0 4px 14px rgba(16,32,48,.08); transform: translateY(-1px); transition: .12s; }
.tile .k { font-size: 12px; text-transform: uppercase; letter-spacing: .08em; color: var(--accent); font-weight: 700; }
.tile h2 { margin: 6px 0 6px; }
.tile p { color: var(--muted); margin: 0; font-size: 14px; }
.featured-tile { background: var(--navy-2); border-color: var(--navy-2); color: #fff; padding: 28px; }
.featured-tile h2 { color: #fff; font-size: 22px; }.featured-tile p { color: #c2d0dc; max-width: 64ch; }.featured-tile .k { color: #8fc6ec; }
.featured-tile:hover { border-color: var(--navy-2); background: #102d45; }

label { display: block; font-weight: 600; font-size: 13.5px; margin: 14px 0 5px; color: var(--navy-2); }
input[type=text], input[type=date] {
  width: 100%; padding: 10px 12px; font-size: 15px; border: 1px solid #cdd7e1;
  border-radius: 8px; background: #fff; color: var(--ink);
}
input:focus { outline: 2px solid #bcd4ea; border-color: var(--accent); }
.row { display: flex; gap: 12px; } .row > * { flex: 1; }
.hint { color: var(--muted); font-size: 12.5px; margin-top: 5px; }

button.primary {
  margin-top: 18px; background: var(--navy); color: #fff; border: 0; border-radius: 8px;
  padding: 11px 20px; font-size: 15px; font-weight: 650; cursor: pointer;
}
button.primary:hover { background: #163a5c; }
button.primary:disabled { opacity: .55; cursor: default; }

.result { margin-top: 20px; border-radius: 10px; padding: 18px 20px; border: 1px solid; display: none; }
.result.show { display: block; }
.result.ok { background: var(--green-bg); border-color: #bfe3cd; }
.result.warn { background: var(--amber-bg); border-color: #efdcb0; }
.result.bad { background: var(--red-bg); border-color: #f0c9c6; }
.result .badge { display: inline-block; font-weight: 800; font-size: 12px; letter-spacing: .06em;
  text-transform: uppercase; padding: 3px 9px; border-radius: 999px; }
.badge.ok { background: var(--green); color: #fff; }
.badge.warn { background: var(--amber); color: #fff; }
.badge.bad { background: var(--red); color: #fff; }
.result h3 { margin: 10px 0 8px; font-size: 18px; color: var(--navy-2); }
dl.kv { display: grid; grid-template-columns: max-content 1fr; gap: 4px 16px; margin: 8px 0 0; font-size: 14px; }
dl.kv dt { color: var(--muted); } dl.kv dd { margin: 0; font-weight: 600; color: var(--ink); }
.spin { color: var(--muted); font-size: 14px; margin-top: 14px; display: none; } .spin.show { display: block; }
.file-drop { min-height: 140px; margin: 0; border: 1.5px dashed #aebdca; border-radius: 9px; background: #f8fafb; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; cursor: pointer; transition: border-color 160ms, background-color 160ms; }
.file-drop:hover, .file-drop.dragging { border-color: var(--accent); background: #edf4f9; }.file-drop:focus-within { outline: 3px solid #bcd4ea; outline-offset: 2px; }.file-drop input { position: absolute; opacity: 0; width: 1px; height: 1px; }.file-drop strong { color: var(--accent); font-size: 15px; }.file-drop span { color: var(--muted); font-size: 12.5px; margin-top: 4px; }.break-hash { word-break: break-all; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11px; }

.provenance { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.src { font-size: 11.5px; font-weight: 700; letter-spacing: .04em; color: var(--navy-2);
  background: #eef3f8; border: 1px solid #dbe6f0; border-radius: 6px; padding: 3px 8px; }

footer.site { border-top: 1px solid var(--line); color: var(--muted); font-size: 12.5px; padding: 22px 0 40px; }
footer.site .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }
.note { background: #eef3f8; border: 1px solid #dbe6f0; border-radius: 8px; padding: 12px 14px; font-size: 13px; color: var(--navy-2); }
code { background: #eef1f4; padding: 1px 5px; border-radius: 4px; font-size: 12.5px; }

/* Ai4 packet demo — guided story, case file, then evidence ledger. */
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 20; background: #fff; color: var(--navy-2); padding: 10px 14px; border-radius: 6px; }
.skip-link:focus { top: 12px; outline: 3px solid #7fb5e3; }
.demo-page { background: #fff; }
.demo-page main { padding: 0; }
.demo-wrap { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.wide-wrap { width: min(1360px, calc(100% - 40px)); }
.demo-nav { padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,.12); }
.nav-row { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand-link { text-decoration: none; }
.demo-nav nav { display: flex; align-items: center; gap: 8px; }
.demo-nav nav a { margin: 0; min-height: 40px; display: inline-flex; align-items: center; padding: 0 12px; border-radius: 6px; }
.demo-nav nav a.active { color: #fff; background: rgba(255,255,255,.11); font-weight: 700; }
.demo-nav nav a:focus-visible, .button:focus-visible, .proof-tabs button:focus-visible, .artifact-list button:focus-visible { outline: 3px solid #83bce8; outline-offset: 2px; }

.demo-hero { background: var(--navy-2); color: #fff; padding: clamp(64px, 9vw, 120px) 0 76px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(300px, .7fr); gap: clamp(44px, 8vw, 110px); align-items: end; }
.eyebrow { color: var(--accent); font: 700 12px/1.3 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .055em; text-transform: uppercase; }
.demo-hero .eyebrow { color: #a8cce8; }
.live-dot { display: inline-block; width: 7px; height: 7px; margin: 0 8px 1px 0; border-radius: 50%; background: #77d5a4; }
.demo-hero h1 { color: #fff; font-size: clamp(2.65rem, 6.4vw, 5.7rem); line-height: .98; letter-spacing: -.05em; margin: 20px 0 24px; max-width: 960px; text-wrap: balance; }
.demo-hero > .demo-wrap > div > p { color: #c0cfdb; font-size: clamp(1.02rem, 1.8vw, 1.28rem); line-height: 1.55; max-width: 700px; margin: 0; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 32px; }
.button { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid transparent; border-radius: 6px; padding: 10px 17px; font: 700 14px/1.2 inherit; text-decoration: none; cursor: pointer; transition: background-color 160ms, border-color 160ms, color 160ms, transform 120ms; }
.button:hover { text-decoration: none; }
.button:active { transform: translateY(1px); }
.primary-button { background: var(--navy-2); color: #fff; }
.primary-button:hover { background: #163a5c; color: #fff; }
.secondary-button { background: #fff; color: var(--navy-2); border-color: #c8d3dd; }
.secondary-button:hover { border-color: #8da3b5; color: var(--navy-2); }
.demo-hero .primary-button { background: #fff; color: var(--navy-2); }
.demo-hero .primary-button:hover { background: #edf3f7; }
.demo-hero .secondary-button { color: #fff; border-color: #718599; background: transparent; }
.demo-hero .secondary-button:hover { border-color: #fff; }
.packet-stamp { border-top: 2px solid #72c99b; border-bottom: 1px solid #4b6275; padding: 24px 0 20px; }
.stamp-title { font-size: 22px; font-weight: 750; margin: 18px 0 14px; }
.packet-stamp dl { margin: 0; }
.packet-stamp dl div { display: grid; grid-template-columns: 78px 1fr; padding: 7px 0; border-top: 1px solid #334b5f; }
.packet-stamp dt { color: #9fb2c2; }
.packet-stamp dd { margin: 0; font: 650 13px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace; }
.packet-stamp p { color: #9fb2c2; font-size: 12px; margin: 16px 0 0; }

.status { display: inline-flex; align-items: center; width: max-content; border-radius: 999px; padding: 4px 9px; font: 700 11px/1.3 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .025em; text-transform: uppercase; }
.status.verified { background: var(--green-bg); color: #11633e; }
.status.rejected { background: var(--red-bg); color: #92221c; }
.section-heading { margin-bottom: 30px; }
.section-heading > div:first-child { display: flex; align-items: center; gap: 11px; }
.section-number { color: #8998a5; font: 650 12px/1.3 ui-monospace, SFMono-Regular, Menlo, monospace; }
.section-heading h2, .handoff-section h2 { font-size: clamp(1.9rem, 4vw, 3.5rem); line-height: 1.05; letter-spacing: -.035em; margin: 13px 0 12px; max-width: 780px; }
.section-heading > p { color: var(--muted); margin: 0; font-size: 16px; }
.split-heading { display: flex; justify-content: space-between; gap: 30px; align-items: end; }
.split-heading > div:first-child { display: block; }
.split-heading > div:first-child > div { display: flex; gap: 11px; }

.guided-section { background: #f6f8fa; padding: 86px 0 96px; border-bottom: 1px solid var(--line); }
.proof-shell { background: #fff; border: 1px solid #d6dee6; border-radius: 12px; overflow: hidden; }
.proof-tabs { display: grid; grid-template-columns: repeat(4, 1fr); border-bottom: 1px solid var(--line); }
.proof-tabs button { min-height: 64px; border: 0; border-right: 1px solid var(--line); background: #fff; color: var(--muted); font: 700 13px/1.2 inherit; cursor: pointer; }
.proof-tabs button:last-child { border-right: 0; }
.proof-tabs button span { display: inline-grid; place-items: center; width: 25px; height: 25px; margin-right: 8px; border: 1px solid #b8c5cf; border-radius: 50%; font: 700 11px/1 ui-monospace, monospace; }
.proof-tabs button[aria-selected=true] { color: var(--navy-2); background: #edf4f9; box-shadow: inset 0 -3px 0 var(--accent); }
.proof-tabs button[aria-selected=true] span { background: var(--accent); color: #fff; border-color: var(--accent); }
.proof-panel { display: grid; grid-template-columns: minmax(0, .9fr) minmax(420px, 1.1fr); min-height: 390px; }
.proof-copy { padding: clamp(34px, 6vw, 72px); align-self: center; }
.proof-copy h3 { font-size: clamp(1.55rem, 3vw, 2.4rem); line-height: 1.08; letter-spacing: -.03em; margin: 18px 0 16px; }
.proof-copy p { color: var(--muted); font-size: 16px; max-width: 54ch; }
.proof-visual { background: #edf3f7; border-left: 1px solid var(--line); padding: clamp(28px, 5vw, 58px); display: flex; flex-direction: column; justify-content: center; gap: 12px; }
.mini-file { display: grid; grid-template-columns: 54px 1fr; grid-template-rows: auto auto; column-gap: 14px; padding: 17px; background: #fff; border: 1px solid #d5dfe7; border-radius: 8px; }
.mini-file > span { grid-row: 1/3; display: grid; place-items: center; background: #edf3f7; color: var(--accent); border-radius: 5px; font: 800 11px/1 monospace; }
.mini-file b { font-size: 14px; }.mini-file small { color: var(--muted); }
.mini-file.active { border-color: #8db6d5; box-shadow: 0 1px 3px rgba(11,31,51,.08); }
.reconcile-visual, .seal-visual { display: grid; place-items: center; gap: 18px; text-align: center; }
.math-value { font-size: clamp(1.5rem, 4vw, 2.7rem); font-weight: 760; color: var(--navy-2); letter-spacing: -.03em; }
.math-mark { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 50%; background: var(--green); color: #fff; font-size: 23px; }
.decision-visual { display: grid; gap: 12px; }
.decision-visual > div { display: grid; grid-template-columns: 110px 1fr; align-items: center; background: #fff; border: 1px solid var(--line); padding: 15px; border-radius: 7px; }
.seal-visual > span { width: 86px; height: 86px; display: grid; place-items: center; border: 2px solid var(--green); border-radius: 50%; color: var(--green); font: 800 12px/1 monospace; }
.seal-visual code { font-size: clamp(.75rem, 1.7vw, 1rem); word-break: break-all; }

.case-section { padding: 96px 0; }
.packet-meta { display: flex; flex-direction: column; align-items: end; gap: 10px; }
.packet-meta code { max-width: 240px; }
.summary-band { display: grid; grid-template-columns: 1fr 1fr 1.15fr; border: 1px solid #d6dee6; border-radius: 10px; overflow: hidden; margin-bottom: 24px; }
.summary-band > div { padding: 24px; border-right: 1px solid var(--line); }
.summary-band > div:last-child { border-right: 0; }
.summary-band span, .summary-band small { display: block; color: var(--muted); }
.summary-band strong { display: block; color: var(--navy-2); font-size: clamp(1.65rem, 3vw, 2.35rem); letter-spacing: -.035em; margin: 7px 0 4px; }
.summary-band small { font: 650 11px/1.3 ui-monospace, monospace; text-transform: uppercase; }
.summary-band .summary-outcome { background: var(--navy-2); }.summary-band .summary-outcome span, .summary-band .summary-outcome small { color: #b7c7d4; }.summary-band .summary-outcome strong { color: #fff; }
.case-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 24px; }
.record-block { border: 1px solid #d6dee6; border-radius: 10px; overflow: hidden; }
.block-title { display: flex; justify-content: space-between; padding: 18px 20px; border-bottom: 1px solid var(--line); background: #f8fafb; }
.block-title h3 { margin: 0; font-size: 16px; }.block-title span { color: var(--muted); font-size: 12px; }
.timeline { list-style: none; padding: 0 22px; margin: 0; }
.timeline li { display: grid; grid-template-columns: 34px 1fr; gap: 13px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.timeline li:last-child { border-bottom: 0; }
.timeline li > span { width: 30px; height: 30px; display: grid; place-items: center; border: 1px solid #b7c6d2; border-radius: 50%; color: var(--accent); font: 750 10px/1 monospace; }
.timeline b, .timeline p, .timeline small { display: block; }.timeline p { color: var(--muted); margin: 4px 0 7px; }.timeline small { color: #70808d; font-size: 11px; }
.exceptions { padding: 0 20px; }
.exceptions article { padding: 20px 0; border-bottom: 1px solid var(--line); }
.exceptions article:last-child { border-bottom: 0; }
.exceptions article > div { display: flex; justify-content: space-between; gap: 10px; }.severity { color: var(--muted); font: 650 11px/1.3 monospace; text-transform: uppercase; }
.exceptions h4 { margin: 12px 0 5px; font-size: 15px; }.exceptions p { color: var(--muted); margin: 0 0 9px; }.exceptions article > strong, .exceptions article > small { display: block; }.exceptions article > strong { font-size: 13px; }.exceptions article > small { color: #70808d; margin-top: 7px; font-size: 11px; }

.ledger-section { padding: 96px 0 110px; background: #edf2f5; border-top: 1px solid var(--line); }
.ledger-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.ledger { display: grid; grid-template-columns: 270px minmax(380px, 1fr) 300px; background: #fff; border: 1px solid #cbd6df; border-radius: 10px; overflow: hidden; min-height: 540px; }
.artifact-list { border-right: 1px solid var(--line); background: #f7f9fa; }
.artifact-list button { width: 100%; min-height: 88px; text-align: left; border: 0; border-bottom: 1px solid var(--line); padding: 15px 17px; background: transparent; color: var(--ink); cursor: pointer; }
.artifact-list button span, .artifact-list button b, .artifact-list button small { display: block; }.artifact-list button span { color: var(--accent); font: 700 10px/1.3 monospace; }.artifact-list button b { margin: 4px 0 2px; }.artifact-list button small { color: var(--muted); }
.artifact-list button[aria-selected=true] { background: #fff; box-shadow: inset 3px 0 0 var(--accent); }
.artifact-detail { padding: clamp(28px, 5vw, 54px); }
.artifact-heading { display: flex; align-items: start; justify-content: space-between; gap: 18px; }
.artifact-heading h3 { font-size: clamp(1.65rem, 3vw, 2.35rem); letter-spacing: -.03em; margin: 9px 0 0; }.artifact-summary { font-size: 17px; color: var(--navy-2); margin-top: 34px; }.artifact-detail > p:not(.artifact-summary) { color: var(--muted); max-width: 65ch; }
.artifact-kv { margin: 32px 0; border-top: 1px solid var(--line); }.artifact-kv > div { display: grid; grid-template-columns: 100px 1fr; gap: 14px; padding: 11px 0; border-bottom: 1px solid var(--line); }.artifact-kv dt { color: var(--muted); }.artifact-kv dd { margin: 0; font-weight: 650; }
.artifact-detail label, .integrity-panel label { color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .05em; }
.hash { display: block; margin-top: 7px; padding: 10px; word-break: break-all; line-height: 1.55; }
.fixture-link { display: inline-block; margin-top: 12px; font-size: 12px; font-weight: 700; }
.integrity-panel { border-left: 1px solid var(--line); background: var(--navy-2); color: #fff; padding: 34px 26px; }
.integrity-panel h3 { color: #fff; font-size: 21px; margin: 22px 0 8px; }.integrity-panel p { color: #b7c7d4; }.integrity-panel label { color: #93a9ba; display: block; margin-top: 26px; }.integrity-panel .hash { color: #d7e4ee; background: #142f46; }.integrity-panel dl { margin: 30px 0 0; }.integrity-panel dl div { padding: 12px 0; border-top: 1px solid #345067; }.integrity-panel dt { color: #93a9ba; font-size: 12px; }.integrity-panel dd { margin: 3px 0 0; font-weight: 700; }

.handoff-section { padding: 86px 0; background: #fff; }
.handoff-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 70px; align-items: center; }
.handoff-section h2 { margin-top: 14px; }.handoff-section p { color: var(--muted); font-size: 16px; max-width: 64ch; }
.api-route { border: 1px solid #cbd6df; border-radius: 9px; padding: 24px; display: grid; grid-template-columns: auto 1fr; gap: 10px; align-items: center; }
.api-route > span { color: var(--green); font: 800 11px/1 monospace; }.api-route code { font-size: 15px; }.api-route small { grid-column: 1/-1; color: var(--muted); }
.loading-row, .load-error { padding: 20px; color: var(--muted); }.load-error { color: var(--red); }

@media (hover: hover) {
  .button:hover { transform: translateY(-1px); }
  .artifact-list button:hover, .proof-tabs button:hover { background: #edf4f9; }
}
@media (max-width: 1000px) {
  .hero-grid, .proof-panel, .case-grid, .handoff-grid { grid-template-columns: 1fr; }
  .proof-visual { border-left: 0; border-top: 1px solid var(--line); min-height: 340px; }
  .ledger { grid-template-columns: 230px 1fr; }
  .integrity-panel { grid-column: 1/-1; border-left: 0; border-top: 1px solid #345067; }
  .integrity-panel dl { display: grid; grid-template-columns: repeat(4,1fr); gap: 15px; }
}
@media (max-width: 700px) {
  .demo-wrap, .wide-wrap { width: min(100% - 28px, 1180px); }
  .nav-row { align-items: flex-start; flex-direction: column; gap: 10px; }
  .demo-nav nav { width: 100%; overflow-x: auto; }
  .brand .tag { display: inline; }
  .demo-hero { padding-top: 52px; }
  .hero-grid { gap: 42px; }
  .demo-hero h1 br { display: none; }
  .guided-section, .case-section, .ledger-section, .handoff-section { padding: 68px 0; }
  .split-heading { display: block; }.packet-meta { align-items: start; margin-top: 18px; }.ledger-actions { margin-top: 20px; }
  .proof-tabs { grid-template-columns: 1fr 1fr; }.proof-tabs button { border-bottom: 1px solid var(--line); }.proof-tabs button:nth-child(2) { border-right: 0; }
  .proof-copy { padding: 30px 24px; }.proof-visual { padding: 28px 20px; }
  .summary-band { grid-template-columns: 1fr; }.summary-band > div { border-right: 0; border-bottom: 1px solid var(--line); }.summary-band > div:last-child { border-bottom: 0; }
  .ledger { grid-template-columns: 1fr; }.artifact-list { display: flex; overflow-x: auto; border-right: 0; border-bottom: 1px solid var(--line); }.artifact-list button { flex: 0 0 190px; border-right: 1px solid var(--line); border-bottom: 0; }.artifact-list button[aria-selected=true] { box-shadow: inset 0 -3px 0 var(--accent); }.artifact-detail { min-height: 480px; }.integrity-panel { grid-column: auto; }.integrity-panel dl { grid-template-columns: 1fr 1fr; }
  .handoff-grid { gap: 30px; }
}
@media (max-width: 420px) {
  .hero-actions, .hero-actions .button { width: 100%; }
  .proof-tabs button { min-height: 58px; }
  .decision-visual > div { grid-template-columns: 1fr; gap: 8px; }
  .integrity-panel dl { grid-template-columns: 1fr; }
  .api-route { grid-template-columns: 1fr; }.api-route small { grid-column: auto; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}
@media print {
  .demo-nav nav, .hero-actions, .proof-tabs, .ledger-actions, footer.site { display: none; }
  .demo-hero { padding: 24px 0; }.demo-hero h1 { font-size: 36px; }.guided-section, .case-section, .ledger-section, .handoff-section { padding: 30px 0; break-inside: avoid; }
  .proof-panel, .case-grid, .ledger, .handoff-grid { display: block; }.artifact-list { display: none; }.integrity-panel { color: #000; background: #fff; border: 1px solid #999; margin-top: 20px; }.integrity-panel h3 { color: #000; }.integrity-panel p, .integrity-panel label { color: #444; }
}