/* ledger.css — Kinobi sitewide design system ("engineering ledger").
   Warm paper, hairline rules, serif lowercase headlines, mono annotations.
   Shared by every page: rail + content column + tabs + annotations + footer.
   No uppercase outside SVG diagram labels. No shadows, no gradients, no JS. */

@font-face{font-family:'Geist Mono';font-style:normal;font-weight:100 900;font-display:swap;src:url(fonts/geist-mono-latin.woff2) format('woff2')}
@font-face{font-family:'Bricolage Grotesque';font-style:normal;font-weight:800;font-display:swap;src:url(fonts/bricolage-grotesque-latin.woff2) format('woff2')}
@font-face{font-family:'Cormorant Garamond';font-style:normal;font-weight:300 700;font-display:swap;src:url(fonts/cormorant-garamond-latin.woff2) format('woff2')}

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}

:root{
  --paper:#fbfaf8;
  --ink:#2c2b31;
  --gray:#737373; /* smallest step below #767676 that clears 4.5:1 on warm paper */
  --faint:#a2a2a2;
  --hairline:#e7e3dc;
  --accent:#ea580c;
  --accent-deep:#c2410c; /* primary button bg — white label clears 4.5:1 */
  --accent-ink:#ffffff;
  /* accent tint ladder (Floatt technique) */
  --kb-accent-2:color-mix(in srgb,var(--accent) 72%,#fff);
  --kb-accent-3:color-mix(in srgb,var(--accent) 46%,#fff);
  --kb-accent-4:color-mix(in srgb,var(--accent) 26%,#fff);
  --kb-accent-border:color-mix(in srgb,var(--accent) 26%,#fff);
  --kb-accent-track:color-mix(in srgb,var(--accent) 11%,#efefef); /* 14% read hot in orange */
  --kb-accent-soft:color-mix(in srgb,var(--accent) 11%,#fff);
  --kb-accent-tint:color-mix(in srgb,var(--accent) 9%,#fff);
  --kb-accent-bg:color-mix(in srgb,var(--accent) 6%,#fff);
  --serif:'Cormorant Garamond','Times New Roman',serif;
  --sans:system-ui,-apple-system,'Helvetica Neue',Arial,sans-serif;
  --mono:'Geist Mono','SF Mono','Menlo',monospace;
}

html{-webkit-text-size-adjust:100%;overflow-x:clip}
body{background:var(--paper);color:var(--gray);font-family:var(--sans);font-size:15px;line-height:1.66;letter-spacing:.3px}
::selection{background:var(--kb-accent-soft)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.svg-defs{position:absolute;width:0;height:0;overflow:hidden}
.skip-link{position:absolute;left:-9999px;top:0;z-index:100;background:var(--ink);color:#fff;padding:8px 14px;font-size:13px;text-decoration:none}
.skip-link:focus{left:8px;top:8px}

/* ── type ─────────────────────────────────────────────────────────── */
h1{font-family:var(--serif);font-weight:500;font-size:26px;line-height:1.3;letter-spacing:-.03em;color:var(--ink)}
h1 .h1-quiet{color:var(--gray)}
h1 em{display:block;font-style:normal;color:var(--ink)}
h2{font-family:var(--serif);font-weight:500;font-size:20px;line-height:1.35;letter-spacing:-.02em;color:var(--ink);margin:16px 0 12px}
h3{font-family:var(--sans);font-weight:500;font-size:16px;color:var(--ink);margin:0 0 8px}
p{max-width:640px;margin:0 0 14px}
p strong{color:var(--ink);font-weight:500}
.ledger-link{color:var(--ink);text-decoration:underline;text-underline-offset:3px;text-decoration-color:#c7c7c7}
.ledger-link:hover{text-decoration-color:var(--ink)}
.ledger-small{font-family:var(--mono);font-size:11px;letter-spacing:.02em;color:var(--faint)}

/* ── left rail (sticky: scrolls away with the shell, SFC-style) ───── */
.ledger-shell{display:flex;align-items:flex-start}
.ledger-rail{position:sticky;top:0;flex:0 0 210px;height:100vh;display:flex;flex-direction:column;background:var(--paper);padding:96px 20px 28px 40px}
.ledger-brand{display:flex;align-items:center;gap:8px;font-family:'Bricolage Grotesque',var(--sans);font-size:22px;font-weight:800;line-height:1;letter-spacing:-.03em;color:var(--ink);text-decoration:none}
.ledger-brand svg{display:block}
.ledger-nav{display:flex;flex-direction:column;gap:5px;margin-top:44px;font-size:14px;line-height:1.5;letter-spacing:.28px}
.ledger-nav a{color:var(--gray);text-decoration:none}
.ledger-nav a:hover{color:var(--ink)}
.ledger-nav a[aria-current="page"]{color:var(--ink)}
.ledger-nav .ledger-nav-plan{align-self:flex-start;margin-top:26px;color:var(--ink)}
.ledger-status{margin-top:auto;display:flex;align-items:flex-start;gap:7px;font-family:var(--mono);font-size:11px;line-height:1.6;letter-spacing:.02em;color:var(--faint)}
.ledger-status i{flex:none;width:6px;height:6px;margin-top:5px;border-radius:999px;background:var(--accent);animation:kb-live-pulse 2.6s ease-in-out infinite}

/* ── content column ───────────────────────────────────────────────── */
.ledger-page{flex:1;min-width:0}
.ledger-column{max-width:800px;margin-left:56px;min-height:100vh;padding:104px 48px 0}
.ledger-section{position:relative;margin-top:88px}
.ledger-hero{position:relative;padding-top:4px}
.ledger-hero h1{margin-bottom:22px}

/* quiet section tab */
.ledger-tab{display:inline-block;font-family:var(--mono);font-size:12px;letter-spacing:.02em;color:var(--gray);background:#f6f5f3;border:1px solid var(--hairline);border-left:2px solid var(--accent);border-radius:2px;padding:3px 10px}

/* right-gutter annotations (visible on wide viewports only) */
.ledger-annot{display:none}

/* buttons */
.ledger-actions{display:flex;align-items:center;gap:10px;margin-top:28px}
.ledger-btn{display:inline-flex;align-items:center;min-height:27px;padding:2px 10px;border-radius:6px;background:var(--accent-deep);color:var(--accent-ink);font-family:var(--sans);font-size:14px;font-weight:400;line-height:1.5;text-decoration:none;transition:background .15s}
.ledger-btn:hover{background:color-mix(in srgb,var(--accent-deep) 86%,#000)}
.ledger-btn--quiet{background:transparent;color:var(--ink);border:1px solid var(--hairline)}
.ledger-btn--quiet:hover{background:#f6f5f3;border-color:var(--gray)}

/* ruled list */
.ledger-list{list-style:none;margin:18px 0 0;max-width:640px}
.ledger-list li{padding:10px 0;border-top:1px solid var(--hairline)}
.ledger-list li:last-child{border-bottom:1px solid var(--hairline)}

/* ── pipeline diagram ─────────────────────────────────────────────── */
.kb-diagram{margin:72px 0 0}
.kb-diagram svg{display:block;width:100%;height:auto}
.kb-zlabel{font-family:var(--mono);font-size:13px;letter-spacing:.05em;fill:var(--faint)}
.kb-zsub{font-family:var(--mono);font-size:12px;letter-spacing:.05em;fill:var(--faint)}
.kb-num{font-family:var(--mono);font-size:13.5px;letter-spacing:.02em;fill:var(--faint);text-anchor:end}
.kb-num--win{fill:#737373}
.kb-spine{stroke:var(--hairline);stroke-width:1}
.kb-rowline{stroke:var(--hairline);stroke-width:1}
.kb-cell{fill:var(--paper);stroke:#d9d9d9;stroke-width:1}
.kb-cell--tint{fill:var(--kb-accent-track);stroke:var(--kb-accent-border)}
.kb-band{fill:var(--kb-accent-track)}
.kb-band--out{fill:url(#kb-hatch)}
.kb-track{stroke:#d9d9d9;stroke-width:1.2;stroke-dasharray:1 6;stroke-linecap:round}
.kb-track--active{stroke:var(--kb-accent-3)}
.kb-comet{fill:none;stroke:var(--accent);stroke-width:1.5px;stroke-dasharray:6 540;stroke-linecap:round;animation:4.6s cubic-bezier(.23,1,.32,1) infinite kb-travel}
.kb-dot{fill:#c7c7c7}
.kb-pulse{fill:var(--accent);animation:kb-live-pulse 2.6s ease-in-out infinite}
.kb-spline{fill:none;stroke:var(--kb-accent-3);stroke-width:1.4}
.kb-spline--faint{stroke:#dedede;stroke-width:1}
.kb-endcap{fill:#c7c7c7}
.kb-flow{fill:none;stroke:var(--accent);stroke-width:1.4px;stroke-dasharray:1 5;stroke-linecap:round;opacity:.85;animation:kb-flow 9s linear infinite}
.kb-terminus{fill:var(--kb-accent-bg);stroke:var(--kb-accent-border)}
.kb-tlabel{font-family:var(--mono);font-size:11.5px;letter-spacing:.05em;fill:var(--ink)}
.kb-tsub{font-family:var(--mono);font-size:10px;letter-spacing:.02em;fill:var(--faint)}
.kb-legend{font-family:var(--mono);font-size:13.5px;letter-spacing:.05em;fill:#737373}
.kb-leader{stroke:#a2a2a2;stroke-width:1}
.kb-leader-dot{fill:#737373}
/* figure caption — shared by the pipeline diagram and upcoming figures */
.kb-figcaption{font-family:var(--mono);font-size:11px;letter-spacing:.02em;color:var(--faint);max-width:640px;margin:14px 0 0}
@keyframes kb-travel{0%{stroke-dashoffset:546px;opacity:0}8%{opacity:1}88%{opacity:1}to{stroke-dashoffset:0;opacity:0}}
@keyframes kb-flow{to{stroke-dashoffset:-240px}}
@keyframes kb-live-pulse{0%,to{opacity:1}50%{opacity:.3}}

/* ── channel strip ────────────────────────────────────────────────── */
.ledger-channels{margin-top:72px}
.ledger-channels-band{display:flex;align-items:center;justify-content:space-between;gap:20px;border:1px solid var(--hairline);border-radius:3px;padding:16px 28px;flex-wrap:wrap}
.ledger-channel{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--gray);filter:grayscale(1);opacity:.55}
.ledger-channel svg{width:16px;height:16px}
.ledger-channels-note{font-family:var(--mono);font-size:11px;letter-spacing:.02em;color:var(--faint);margin-top:10px}

/* ── footer ───────────────────────────────────────────────────────── */
.ledger-footer{margin-top:96px;border-top:1px solid var(--hairline);padding:40px 0 56px}
.ledger-footer-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ledger-footer-cols ul{list-style:none;margin:14px 0 0}
.ledger-footer-cols li{margin-bottom:8px}
.ledger-footer-cols a{color:var(--gray);font-size:13px;text-decoration:none}
.ledger-footer-cols a:hover{color:var(--ink)}
.ledger-footer-base{display:flex;align-items:center;gap:8px;margin-top:48px;font-family:var(--mono);font-size:11px;letter-spacing:.02em;color:var(--faint)}
.ledger-footer-base svg{display:block}

/* ── reduced motion: everything reads as a complete still ─────────── */
@media (prefers-reduced-motion:reduce){
  .kb-comet,.kb-comet--gray{animation:none;opacity:.9;stroke-dashoffset:0;stroke-dasharray:none}
  .kb-flow{animation:none}
  .kb-pulse{animation:none;opacity:1}
  .ledger-status i{animation:none}
  .ledger-btn{transition:none}
}

/* ── wide viewports: annotation gutter + diagram bleed ────────────── */
@media (min-width:1320px){
  .ledger-annot{display:block;position:absolute;left:100%;top:6px;margin-left:76px;width:190px;font-family:var(--mono);font-size:11px;line-height:1.7;letter-spacing:.02em;color:var(--faint)}
  .ledger-annot span{display:block;margin-bottom:10px}
  .kb-diagram{margin-right:-250px}
}

/* ── mobile: rail becomes a top bar ───────────────────────────────── */
@media (max-width:980px){
  .ledger-shell{display:block}
  .ledger-rail{position:static;height:auto;width:auto;flex-direction:row;align-items:center;gap:16px;flex-wrap:wrap;padding:14px 20px;border-bottom:1px solid var(--hairline)}
  .ledger-nav{flex-direction:row;flex-wrap:wrap;align-items:center;gap:14px;margin:0 0 0 auto;font-size:14px}
  .ledger-nav .ledger-nav-plan{align-self:center;margin-top:0}
  .ledger-status{display:none}
  .ledger-column{margin-left:0;padding:36px 20px 0;min-height:0}
  .ledger-section{margin-top:64px}
  .ledger-footer-cols{grid-template-columns:1fr;gap:28px}
}
@media (max-width:980px){
  .kb-diagram{overflow-x:auto;margin-top:56px}
  .kb-diagram svg{min-width:900px}
}

/* ── marketing pages (solutions, how-it-works) ────────────────────── */
/* shared fix: CTA labels stay on one line; action rows wrap on narrow screens */
.ledger-actions{flex-wrap:wrap}
.ledger-btn{white-space:nowrap}

.ledger-actions+.ledger-small{display:block;margin-top:14px}

/* engagement brief — hairline card stating the managed engagement */
.ledger-brief{margin-top:72px;border:1px solid var(--hairline);border-radius:3px;padding:22px 26px}
.ledger-brief-label{margin:0 0 8px}
.ledger-brief-lede{margin:0;max-width:560px;font-size:14px}
.ledger-brief-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin:20px 0 0;padding-top:18px;border-top:1px solid var(--hairline)}
.ledger-brief-grid dt{font-family:var(--mono);font-size:11px;letter-spacing:.02em;color:var(--faint)}
.ledger-brief-grid dd{margin:6px 0 0;font-size:13.5px;line-height:1.55;color:var(--ink)}

/* offer cards — quiet hairline pair */
.ledger-offers{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:28px}
.ledger-offer{display:flex;flex-direction:column;border:1px solid var(--hairline);border-radius:3px;padding:20px 22px}
.ledger-offer h3{font-family:var(--serif);font-weight:500;font-size:17px;letter-spacing:-.01em;line-height:1.35;margin:0 0 8px}
.ledger-offer p{font-size:14px;margin:0 0 18px}
.ledger-offer .ledger-small{margin:auto 0 0;padding-top:14px;border-top:1px solid var(--hairline)}

/* process ledger — numbered handoff rows */
.ledger-process{list-style:none;margin:28px 0 0;border-top:1px solid var(--hairline)}
.ledger-process-row{display:grid;grid-template-columns:34px minmax(0,1fr) 200px;gap:8px 24px;padding:22px 0;border-bottom:1px solid var(--hairline)}
.ledger-process-no{font-family:var(--mono);font-size:11px;letter-spacing:.02em;color:var(--accent);padding-top:3px}
.ledger-process-main>.ledger-small{display:block}
.ledger-process-main h3{font-family:var(--serif);font-weight:500;font-size:17px;letter-spacing:-.01em;line-height:1.35;margin:6px 0}
.ledger-process-main p{font-size:14px;margin:0;max-width:480px}
.ledger-process-result{border-left:1px solid var(--hairline);padding-left:24px}
.ledger-process-result>.ledger-small{display:block}
.ledger-process-result strong{display:block;margin-top:6px;font-size:14px;font-weight:500;line-height:1.5;color:var(--ink)}
.ledger-process-assurance{display:flex;align-items:baseline;justify-content:space-between;gap:10px 24px;flex-wrap:wrap;padding-top:16px}
.ledger-process-assurance strong{font-size:13px;font-weight:500;color:var(--ink)}

/* principles — ruled three-up */
.ledger-principles{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:26px}
.ledger-principle{border-top:1px solid var(--hairline);padding-top:16px}
.ledger-principle h3{font-family:var(--serif);font-weight:500;font-size:16px;letter-spacing:-.01em;line-height:1.35;margin:0 0 6px}
.ledger-principle p{font-size:14px;margin:0}

/* ruled list with lead-in terms (best fit, deliverables) */
.ledger-list li strong{display:block;color:var(--ink);font-weight:500;margin-bottom:2px}

@media (max-width:860px){
  .ledger-brief-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:700px){
  .ledger-offers{grid-template-columns:1fr}
  .ledger-principles{grid-template-columns:1fr}
  .ledger-process-row{grid-template-columns:34px minmax(0,1fr)}
  .ledger-process-result{grid-column:2;border-left:0;border-top:1px solid var(--hairline);padding:14px 0 0;margin-top:14px}
}
@media (max-width:560px){
  .ledger-brief-grid{grid-template-columns:1fr}
}