/* AISA v2.0 — product site. Light business theme. Offline, dependency-free. */
:root {
  --bg: #f5f5f7;
  --bg-2: #ebebef;
  --card: #ffffff;
  --line: #d9d9de;
  --line-2: #e8e8ec;
  --text: #1d1d1f;
  --text-2: #3a3a3f;
  --muted: #6e6e73;
  --accent: #0b57d0;
  --accent-2: #0a3f9c;
  --accent-soft: #e8f0fe;
  --human: #b45309;
  --human-soft: #fdf1dc;
  --auto: #047857;
  --auto-soft: #d9f2e6;
  --red: #b91c1c;
  --shadow: 0 1px 2px rgba(0,0,0,.04), 0 12px 32px rgba(29,29,31,.08);
  --shadow-2: 0 2px 4px rgba(0,0,0,.05), 0 20px 48px rgba(29,29,31,.12);
  --radius: 18px;
  --radius-s: 12px;
  --nav-h: 56px;
  --ease: cubic-bezier(.2,.7,.2,1);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  background: var(--bg); color: var(--text);
  font: 17px/1.55 -apple-system, "Segoe UI", system-ui, Roboto, "Helvetica Neue", Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
b, strong { font-weight: 600; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 28px; }
.wrap.narrow { max-width: 860px; }
::selection { background: var(--accent-soft); }

/* ---------- navigation ---------- */
nav.top {
  position: sticky; top: 0; z-index: 60; height: var(--nav-h);
  background: rgba(245,245,247,.82); backdrop-filter: saturate(180%) blur(18px); -webkit-backdrop-filter: saturate(180%) blur(18px);
  border-bottom: 1px solid rgba(0,0,0,.08);
}
nav.top .wrap { display: flex; align-items: center; gap: 24px; height: 100%; }
nav.top .brand { font-weight: 700; letter-spacing: -.2px; font-size: 17px; color: var(--text); white-space: nowrap; }
nav.top .brand small { font-weight: 500; color: var(--muted); margin-left: 6px; font-size: 13px; }
nav.top a.nl { color: var(--text-2); font-size: 13.5px; white-space: nowrap; padding: 6px 2px; border-bottom: 2px solid transparent; transition: color .15s, border-color .15s; }
nav.top a.nl:hover, nav.top a.nl.on { color: var(--text); text-decoration: none; border-bottom-color: var(--accent); }
nav.top .spacer { flex: 1; }
nav.top a.cta {
  font-size: 13px; padding: 7px 14px; border-radius: 999px; white-space: nowrap;
  background: var(--text); color: #fff; font-weight: 500; transition: background .15s, transform .15s;
}
nav.top a.cta:hover { background: var(--accent); text-decoration: none; }
nav.top .menu { display: none; }

/* ---------- hero ---------- */
.hero { padding: 84px 0 40px; text-align: center; position: relative; overflow: hidden; background: linear-gradient(180deg,#fff 0%, var(--bg) 100%); }
.hero .kicker { display: inline-block; font-size: 12.5px; letter-spacing: 1.8px; text-transform: uppercase; color: var(--accent); font-weight: 600; margin-bottom: 18px; }
.hero h1 { font-size: clamp(38px, 5.6vw, 64px); line-height: 1.05; letter-spacing: -1.8px; font-weight: 700; max-width: 24ch; margin: 0 auto; }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero .lead { font-size: clamp(18px, 1.6vw, 22px); color: var(--text-2); max-width: 62ch; margin: 24px auto 0; line-height: 1.5; }
.hero .cta-row { margin-top: 30px; display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.case-showcase { max-width: 1180px; margin: 38px auto 0; text-align: left; }
.case-showcase-meta { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 12px; padding: 0 4px; }
.case-showcase-meta > div { max-width: 760px; }
.case-showcase-eyebrow { display: block; color: var(--text); font-size: 13px; font-weight: 700; letter-spacing: 1.15px; text-transform: uppercase; }
.case-showcase-meta p { margin-top: 3px; color: var(--muted); font-size: 13px; line-height: 1.45; }
.case-showcase-toggle {
  flex: 0 0 auto; min-width: 74px; padding: 7px 13px; border: 1px solid var(--line); border-radius: 999px;
  background: rgba(255,255,255,.78); color: var(--text-2); font: inherit; font-size: 12px; font-weight: 600; line-height: 1; cursor: pointer;
  transition: color .15s, border-color .15s, background .15s;
}
.case-showcase-toggle:hover, .case-showcase-toggle:focus-visible { color: var(--accent); border-color: var(--accent); background: #fff; outline: none; }
.case-showcase-track { display: flex; gap: 10px; height: clamp(370px, 38vw, 490px); }
.case-slide {
  position: relative; flex: .5 1 0; min-width: 0; overflow: hidden; isolation: isolate;
  border: 1px solid rgba(255,255,255,.3); border-radius: 22px; background: #07162c; box-shadow: var(--shadow);
  color: #fff; text-decoration: none; outline: none;
  transition: flex .72s var(--ease), transform .35s var(--ease), box-shadow .35s, border-color .35s;
}
.case-slide:hover, .case-slide:focus-visible { text-decoration: none; }
.case-slide.is-active { flex: 8.4 1 0; border-color: rgba(11,87,208,.35); box-shadow: var(--shadow-2); }
.case-slide:focus-visible { box-shadow: 0 0 0 4px rgba(11,87,208,.2), var(--shadow-2); }
.case-slide img {
  display: block; width: 100%; height: 100%; object-fit: cover; object-position: center; transform: scale(1.03);
  filter: saturate(.72) brightness(.62); transition: filter .45s, transform .72s var(--ease), opacity .45s;
}
.case-slide.is-active img { object-fit: contain; transform: scale(1); filter: none; }
.case-slide::after {
  content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background: linear-gradient(180deg, transparent 62%, rgba(4,11,24,.08) 72%, rgba(4,11,24,.62) 100%);
  opacity: .45; transition: opacity .35s;
}
.case-slide.is-active::after { opacity: 1; }
.case-slide-rail {
  position: absolute; inset: 18px 0 18px; z-index: 2; display: flex; flex-direction: column; align-items: center; justify-content: space-between;
  color: #fff; opacity: 1; transition: opacity .22s, transform .35s var(--ease);
}
.case-slide-rail b { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: rgba(5,14,31,.72); font-size: 12px; }
.case-slide-rail span { writing-mode: vertical-rl; transform: rotate(180deg); font-size: 12px; font-weight: 700; letter-spacing: 1.4px; text-transform: uppercase; text-shadow: 0 1px 8px rgba(0,0,0,.55); }
.case-slide.is-active .case-slide-rail { opacity: 0; transform: translateY(10px); pointer-events: none; }
.case-slide-copy {
  position: absolute; z-index: 2; left: 18px; bottom: 20px; width: min(570px, calc(100% - 36px)); padding: 15px 17px 16px;
  border: 1px solid rgba(255,255,255,.16); border-radius: 15px; background: rgba(4,11,24,.82); box-shadow: 0 12px 30px rgba(0,0,0,.22);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  opacity: 0; transform: translateY(12px); transition: opacity .3s .16s, transform .45s .12s var(--ease);
}
.case-slide.is-active .case-slide-copy { opacity: 1; transform: none; }
.case-slide-kicker { display: block; margin-bottom: 6px; color: #b9d3ff; font-size: 11.5px; font-weight: 700; letter-spacing: 1.15px; text-transform: uppercase; }
.case-slide-copy strong { display: block; max-width: 36ch; color: #fff; font-size: clamp(18px, 1.65vw, 23px); line-height: 1.12; letter-spacing: -.35px; }
.case-slide-copy small { display: block; max-width: 68ch; margin-top: 7px; color: rgba(255,255,255,.78); font-size: 12.5px; line-height: 1.45; }
.case-slide-progress { position: absolute; z-index: 3; left: 24px; right: 24px; bottom: 10px; height: 2px; overflow: hidden; background: rgba(255,255,255,.2); opacity: 0; }
.case-slide-progress span { display: block; width: 100%; height: 100%; background: #fff; transform-origin: left; transform: scaleX(0); }
.case-slide.is-active .case-slide-progress { opacity: 1; }
.case-slide.is-active .case-slide-progress span { animation: case-showcase-progress 5.8s linear forwards; }
.case-showcase.is-paused .case-slide-progress span, .case-showcase.is-interacting .case-slide-progress span { animation-play-state: paused; }
@keyframes case-showcase-progress { to { transform: scaleX(1); } }
.case-showcase-dots { display: flex; justify-content: center; gap: 7px; margin-top: 13px; }
.case-showcase-dots button { width: 7px; height: 7px; padding: 0; border: 0; border-radius: 50%; background: #b9bec8; cursor: pointer; transition: width .25s, border-radius .25s, background .25s; }
.case-showcase-dots button.is-active { width: 28px; border-radius: 999px; background: var(--accent); }
.case-showcase-dots button:focus-visible { outline: 3px solid rgba(11,87,208,.22); outline-offset: 3px; }
.btn {
  display: inline-block; padding: 12px 22px; border-radius: 999px; font-weight: 500; font-size: 15px;
  border: 1px solid var(--line); color: var(--text); background: var(--card);
  transition: transform .18s var(--ease), box-shadow .18s, background .15s, border-color .15s;
}
.btn:hover { transform: translateY(-1px); text-decoration: none; box-shadow: var(--shadow); border-color: #c8c8cf; }
.btn.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn.primary:hover { background: var(--accent-2); border-color: var(--accent-2); }
.hero-visual { margin: 56px auto 0; max-width: 1100px; }
.hero-visual svg { width: 100%; height: auto; display: block; }
.hero-caption { margin-top: 14px; color: var(--muted); font-size: 13.5px; }
.hero-caption i { display: inline-block; width: 10px; height: 10px; border-radius: 50%; vertical-align: -1px; margin: 0 5px 0 12px; }

/* ---------- sections ---------- */
section.sec { padding: 84px 0 76px; border-top: 1px solid var(--line-2); scroll-margin-top: var(--nav-h); }
section.sec.alt { background: #fff; }
.sec-head { max-width: 1280px; margin-bottom: 44px; }
.sec-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.kicker { font-size: 12.5px; letter-spacing: 1.8px; text-transform: uppercase; color: var(--accent); font-weight: 600; margin-bottom: 12px; display: block; }
h2 { font-size: clamp(30px, 3.6vw, 44px); line-height: 1.1; letter-spacing: -1.1px; font-weight: 700; }
.sec-head .lead { font-size: 19px; color: var(--text-2); margin-top: 16px; line-height: 1.5; }
h3 { font-size: 24px; letter-spacing: -.5px; font-weight: 700; }
h4 { font-size: 16px; font-weight: 600; }
.hint { color: var(--muted); font-size: 13.5px; }

/* reveal on scroll */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s } .reveal.d2 { transition-delay: .16s } .reveal.d3 { transition-delay: .24s } .reveal.d4 { transition-delay: .32s }

/* ---------- stat tiles ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.stat { background: var(--card); border: 1px solid var(--line-2); border-radius: var(--radius); padding: 22px 22px 20px; box-shadow: var(--shadow); }
.stat .n { font-size: 44px; font-weight: 700; letter-spacing: -1.5px; line-height: 1; color: var(--text); font-variant-numeric: tabular-nums; }
.stat .n small { font-size: 22px; letter-spacing: -.5px; color: var(--muted); font-weight: 600; margin-left: 2px; }
.stat .l { font-size: 15px; font-weight: 600; margin-top: 10px; }
.stat .s { font-size: 13px; color: var(--muted); margin-top: 6px; line-height: 1.45; }

/* ---------- flow ribbon (channels → platform → systems) ---------- */
.ribbon { margin-top: 40px; background: var(--card); border: 1px solid var(--line-2); border-radius: var(--radius); padding: 22px 26px; box-shadow: var(--shadow); overflow-x: auto; }
.ribbon svg { width: 100%; min-width: 820px; height: auto; display: block; }

/* ---------- generic cards ---------- */
.cards { display: grid; gap: 14px; }
.cards.c3 { grid-template-columns: repeat(3, 1fr); }
.cards.c2 { grid-template-columns: repeat(2, 1fr); }
.cards.c4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: var(--card); border: 1px solid var(--line-2); border-radius: var(--radius); padding: 24px;
  box-shadow: var(--shadow); position: relative; text-align: left; cursor: pointer; font: inherit; color: inherit; width: 100%;
  display: flex; flex-direction: column; align-items: stretch; justify-content: flex-start;
  transition: transform .2s var(--ease), box-shadow .2s, border-color .2s;
}
.card .more { margin-top: auto; padding-top: 14px; }
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-2); border-color: #cfd6e6; }
.card.active { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft), var(--shadow-2); }
.card .num { font-size: 12.5px; font-weight: 600; color: var(--accent); letter-spacing: 1px; text-transform: uppercase; }
.card h3 { font-size: 21px; margin: 8px 0 8px; letter-spacing: -.4px; }
.card p { color: var(--text-2); font-size: 15px; line-height: 1.5; }
.card .more { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 600; color: var(--accent); }
.card .more::after { content: "+"; display: inline-grid; place-items: center; width: 20px; height: 20px; border-radius: 50%; background: var(--accent-soft); font-size: 15px; line-height: 1; transition: transform .25s var(--ease); }
.card.active .more::after { transform: rotate(45deg); }
.card.static { cursor: default; }
.card.static:hover { transform: none; box-shadow: var(--shadow); border-color: var(--line-2); }

/* ---------- expanders (level 2: opens below the point) ---------- */
.expander { height: 0; overflow: hidden; transition: height .55s var(--ease); scroll-margin-top: calc(var(--nav-h) + 16px); }
.expander.open { margin-top: 18px; }
.panel { display: none; }
.panel.show { display: block; }
.panel-inner {
  background: var(--card); border: 1px solid var(--line-2); border-radius: var(--radius); box-shadow: var(--shadow-2);
  padding: 34px 36px 30px; position: relative;
}
.panel-inner .close {
  position: absolute; top: 16px; right: 16px; width: 34px; height: 34px; border-radius: 50%; border: 1px solid var(--line);
  background: var(--card); cursor: pointer; font-size: 18px; color: var(--muted); display: grid; place-items: center; transition: background .15s, color .15s;
}
.panel-inner .close:hover { background: var(--bg-2); color: var(--text); }
.panel-inner .kicker { margin-bottom: 8px; }
.panel-inner h3 { font-size: 28px; letter-spacing: -.7px; max-width: 26ch; }
.panel-inner .lead { font-size: 17.5px; color: var(--text-2); margin: 12px 0 0; max-width: 78ch; line-height: 1.5; }
.panel-grid { display: grid; grid-template-columns: 1.35fr 1fr; gap: 34px; margin-top: 26px; }
.panel-grid.wide { grid-template-columns: 1fr; }
.panel-inner h4 { font-size: 12.5px; letter-spacing: 1.4px; text-transform: uppercase; color: var(--muted); margin-bottom: 12px; }
.steps { list-style: none; counter-reset: st; }
.steps li { position: relative; padding: 0 0 12px 40px; font-size: 15px; line-height: 1.5; color: var(--text-2); }
.steps li::before {
  counter-increment: st; content: counter(st); position: absolute; left: 0; top: 1px; width: 26px; height: 26px; border-radius: 50%;
  background: var(--accent-soft); color: var(--accent); font-weight: 700; font-size: 13px; display: grid; place-items: center;
}
.steps li b { color: var(--text); }
.facts { list-style: none; }
.facts li { padding: 10px 0; border-top: 1px solid var(--line-2); font-size: 14.5px; line-height: 1.5; color: var(--text-2); }
.facts li:first-child { border-top: 0; padding-top: 0; }
.facts li b { color: var(--text); display: block; }
.facts li .src { display: block; color: var(--muted); font-size: 12.5px; margin-top: 2px; }
.panel-diagram { margin-top: 22px; background: var(--bg); border: 1px solid var(--line-2); border-radius: var(--radius-s); padding: 16px 18px; overflow-x: auto; }
.panel-diagram svg { width: 100%; min-width: 640px; height: auto; display: block; }
.panel-links { margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--line-2); display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.panel-links .lbl { font-size: 12.5px; letter-spacing: 1.2px; text-transform: uppercase; color: var(--muted); margin-right: 6px; }
.panel-links a { font-size: 13.5px; font-weight: 500; padding: 7px 13px; border-radius: 999px; border: 1px solid var(--line); background: var(--card); color: var(--text); transition: border-color .15s, background .15s; }
.panel-links a:hover { text-decoration: none; border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }
.panel-links a.pri { background: var(--text); color: #fff; border-color: var(--text); }
.panel-links a.pri:hover { background: var(--accent); border-color: var(--accent); color: #fff; }

/* stage chains inside panels */
.chain { display: flex; flex-wrap: wrap; gap: 10px; align-items: stretch; margin-top: 22px; }
.chain .step { flex: 1 1 130px; min-width: 120px; background: var(--bg); border: 1px solid var(--line-2); border-radius: 12px; padding: 12px 14px; position: relative; font-size: 12.5px; color: var(--muted); line-height: 1.4; }
.chain .step b { display: block; font-size: 13.5px; color: var(--text); margin-bottom: 3px; }
.chain .step.h { border-color: #ecd5ad; background: var(--human-soft); }
.chain .step.h b { color: var(--human); }
.chain .step.a { border-color: #b7e2cb; background: var(--auto-soft); }
.chain .step.a b { color: var(--auto); }
.chain .step + .step::before { content: "›"; position: absolute; left: -12px; top: 50%; transform: translateY(-50%); width: 16px; height: 16px; line-height: 15px; text-align: center; border-radius: 50%; background: #fff; border: 1px solid var(--line); color: var(--accent); font-weight: 700; font-size: 13px; z-index: 1; }

/* small data tables inside panels */
table.t { width: 100%; border-collapse: collapse; font-size: 14px; margin-top: 6px; }
table.t th { text-align: left; font-size: 11.5px; letter-spacing: 1px; text-transform: uppercase; color: var(--muted); font-weight: 600; padding: 8px 10px; border-bottom: 1px solid var(--line); }
table.t td { padding: 9px 10px; border-bottom: 1px solid var(--line-2); vertical-align: top; color: var(--text-2); }
table.t td:first-child { color: var(--text); font-weight: 500; }
table.t tr:last-child td { border-bottom: 0; }
table.t .r { text-align: right; font-variant-numeric: tabular-nums; }
.bar { display: inline-block; height: 8px; border-radius: 4px; background: var(--accent); vertical-align: middle; margin-right: 8px; }

/* ---------- the spine: channels → platform → modules → estate ---------- */
.spine { margin-top: 8px; }
.tier { display: flex; justify-content: center; }
.pills { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; }
.pill-x { background: var(--card); border: 1px solid var(--line-2); border-radius: 999px; padding: 9px 18px; font-size: 14px; font-weight: 500; box-shadow: var(--shadow); white-space: nowrap; }
.pill-x small { color: var(--muted); font-weight: 400; margin-left: 6px; font-size: 12.5px; }
.down { height: 46px; position: relative; }
.down::before { content: ""; position: absolute; left: 50%; top: 0; bottom: 0; width: 2px; margin-left: -1px; background: linear-gradient(180deg, var(--line) 0%, #b9c9ea 50%, var(--line) 100%); }
.down::after { content: ""; position: absolute; left: 50%; margin-left: -3px; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); animation: fall 2.4s cubic-bezier(.5,0,.5,1) infinite; }
@keyframes fall { 0% { top: -2px; opacity: 0 } 15% { opacity: 1 } 85% { opacity: 1 } 100% { top: 100%; opacity: 0 } }
.down.d2::after { animation-delay: .8s } .down.d3::after { animation-delay: 1.6s }
.slab {
  width: 100%; background: var(--card); border: 1px solid var(--line-2); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 20px 22px 22px;
}
.slab .lbl { font-size: 11.5px; letter-spacing: 1.6px; text-transform: uppercase; color: var(--muted); font-weight: 600; display: block; margin-bottom: 14px; }
.slab .lbl b { color: var(--accent); font-weight: 600; }
.tiles { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; }
.tiles.t4 { grid-template-columns: repeat(4, 1fr); }
.case-note { display: block; max-width: 96ch; margin: 0 auto 26px; text-align: center; font-size: 14px; color: var(--muted); line-height: 1.55; }
.case-note b { color: var(--text); font-weight: 600; }
.band-tag { display: inline-block; font-size: 11px; letter-spacing: 1.4px; text-transform: uppercase; color: var(--muted); font-weight: 600; margin-bottom: 10px; }
.band-tag i { font-style: normal; color: var(--accent); }
.chanband { width: 100%; text-align: center; }
.outslab { width: 100%; background: var(--card); border: 1px solid var(--line-2); border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px 22px 20px; }
.outrow { display: grid; grid-template-columns: 200px 1fr; gap: 18px; align-items: center; padding: 14px 0; border-top: 1px solid var(--line-2); }
.outrow:first-of-type { border-top: 0; padding-top: 4px; }
.outrow .rl b { display: block; font-size: 14px; color: var(--text); }
.outrow .rl span { display: block; font-size: 12px; color: var(--muted); line-height: 1.45; margin-top: 3px; }
.outrow .pills { justify-content: flex-start; }
.outrow.infra .pill-x { background: var(--bg); border-style: dashed; }
@media (max-width: 780px) { .outrow { grid-template-columns: 1fr; gap: 8px; } .outrow .pills { justify-content: center; } }
.tile {
  display: flex; flex-direction: column; align-items: stretch; justify-content: flex-start; background: var(--bg); border: 1px solid var(--line-2); border-radius: var(--radius-s); padding: 14px 14px 12px;
  text-align: left; font: inherit; color: inherit; cursor: pointer; transition: border-color .18s, background .18s, transform .18s var(--ease);
}
.tile:hover, .tile.active { border-color: var(--accent); background: #f7faff; transform: translateY(-2px); }
.tile b { display: block; font-size: 14.5px; }
.tile span { display: block; font-size: 12px; color: var(--muted); margin-top: 4px; line-height: 1.4; }
.mods { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; width: 100%; }
.mod {
  display: flex; flex-direction: column; align-items: stretch; justify-content: flex-start; background: var(--card); border: 1px solid var(--line-2); border-radius: var(--radius); padding: 20px 22px 18px;
  box-shadow: var(--shadow); text-align: left; font: inherit; color: inherit; cursor: pointer; position: relative;
  transition: transform .2s var(--ease), box-shadow .2s, border-color .2s;
}
.mod:hover, .mod.on { transform: translateY(-3px); box-shadow: var(--shadow-2); border-color: var(--accent); }
.mod .k { font-size: 11.5px; letter-spacing: 1.4px; text-transform: uppercase; color: var(--accent); font-weight: 700; }
.mod h3 { font-size: 20px; margin: 7px 0 6px; letter-spacing: -.4px; }
.mod p { font-size: 14px; color: var(--text-2); line-height: 1.5; }
.mod .more { margin-top: auto; padding-top: 12px; font-size: 13.5px; }
.flowwrap { width: 100%; background: var(--card); border: 1px solid var(--line-2); border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px 20px 20px; margin-top: 12px; }
.flowwrap .fh { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; }
.flowwrap .fh b { font-size: 15px; }
.flowwrap .fh span { font-size: 13px; color: var(--muted); }
.flow-set { display: none; }
.flow-set.show { display: block; }
.flow-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(122px, 1fr)); gap: 10px; padding-bottom: 6px; align-items: stretch; }
.fstep { flex: 1 1 122px; min-width: 116px; background: var(--bg); border: 1px solid var(--line-2); border-radius: 12px; padding: 12px 13px; position: relative; }
.fstep b { display: block; font-size: 13.5px; margin-bottom: 4px; }
.fstep span { display: block; font-size: 12px; color: var(--muted); line-height: 1.4; }
.fstep.h { background: var(--human-soft); border-color: #ecd5ad; } .fstep.h b { color: var(--human); }
.fstep.a { background: var(--auto-soft); border-color: #b7e2cb; } .fstep.a b { color: var(--auto); }
.fstep.par { border-color: #b9c9ea; background: #f7faff; }
.fstep.par b { color: var(--accent); }
.fstep.par::after { content: "runs with the other"; position: absolute; left: 13px; bottom: -8px; font-size: 9.5px; letter-spacing: .5px; text-transform: uppercase; color: var(--accent); background: #f7faff; padding: 0 4px; border: 1px solid #b9c9ea; border-radius: 999px; line-height: 15px; }
.fstep.cond { border-style: dashed; border-color: #e0c8a4; background: #fffbf4; }
.fstep.cond b { color: var(--human); }
.fstep .cnd { display: block; font-size: 9.5px; font-weight: 700; letter-spacing: .5px; text-transform: uppercase; color: var(--human); margin-bottom: 5px; }
.flow-row { row-gap: 20px; }
.fstep + .fstep::before { content: "›"; position: absolute; left: -12px; top: 50%; transform: translateY(-50%); width: 16px; height: 16px; line-height: 15px; text-align: center; border-radius: 50%; background: #fff; border: 1px solid var(--line); color: var(--accent); font-weight: 700; font-size: 13px; z-index: 1; }
.flow-note { margin-top: 12px; font-size: 13px; color: var(--muted); line-height: 1.5; }

/* ---------- per-module metrics ---------- */
.mtable { width: 100%; border-collapse: collapse; font-size: 14.5px; background: var(--card); border: 1px solid var(--line-2); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.mtable th { text-align: left; font-size: 11.5px; letter-spacing: 1.2px; text-transform: uppercase; color: var(--muted); font-weight: 600; padding: 13px 16px; border-bottom: 1px solid var(--line); background: var(--bg); }
.mtable td { padding: 15px 16px; border-bottom: 1px solid var(--line-2); vertical-align: top; color: var(--text-2); line-height: 1.5; }
.mtable tr:last-child td { border-bottom: 0; }
.mtable td.mod-c { color: var(--text); font-weight: 600; font-size: 15px; width: 15%; }
.mtable td.mod-c span { display: block; font-weight: 400; font-size: 12.5px; color: var(--muted); margin-top: 3px; }
.mtable td b { color: var(--text); font-variant-numeric: tabular-nums; }
.mtable td .src { display: block; color: var(--muted); font-size: 12px; margin-top: 4px; }
.mtable td.goal { background: rgba(4,120,87,.04); }
.mtable td.goal b { color: var(--auto); }
@media (max-width: 860px) { .mtable, .mtable thead, .mtable tbody, .mtable tr, .mtable td, .mtable th { display: block; } .mtable thead { display: none; } .mtable tr { border-bottom: 1px solid var(--line); padding: 6px 0; } .mtable td { border: 0; padding: 8px 16px; } .mtable td.mod-c { width: auto; padding-top: 14px; } .mtable td::before { content: attr(data-l); display: block; font-size: 11px; letter-spacing: 1.1px; text-transform: uppercase; color: var(--muted); margin-bottom: 4px; } .mtable td.mod-c::before { display: none; } }

/* ---------- delivery phases ---------- */
.phases { display: grid; grid-template-columns: 1fr; gap: 18px; align-items: start; }
.phase .trackgrid { grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }
.phase .cols2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 30px; align-items: start; }
@media (max-width: 800px) { .phase .cols2 { grid-template-columns: 1fr; } }
.phase { background: var(--card); border: 1px solid var(--line-2); border-radius: var(--radius); padding: 26px 28px 24px; box-shadow: var(--shadow); position: relative; }
.phase .pn2 { font-size: 12px; letter-spacing: 1.6px; text-transform: uppercase; color: var(--accent); font-weight: 700; }
.phase h3 { font-size: 23px; margin: 8px 0 8px; letter-spacing: -.5px; }
.phase > p { font-size: 15px; color: var(--text-2); line-height: 1.55; }
.phase h4 { font-size: 11.5px; letter-spacing: 1.3px; text-transform: uppercase; color: var(--muted); margin: 20px 0 10px; }
.phase .out { list-style: none; }
.phase .out li { font-size: 14px; color: var(--text-2); padding: 7px 0 7px 20px; position: relative; border-top: 1px solid var(--line-2); line-height: 1.45; }
.phase .out li:first-child { border-top: 0; }
.phase .out li::before { content: ""; position: absolute; left: 2px; top: 15px; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.phase .out li b { color: var(--text); }
.trackgrid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; margin-top: 10px; }
.trk { background: var(--bg); border: 1px solid var(--line-2); border-radius: 10px; padding: 10px 12px; font-size: 13px; color: var(--text-2); line-height: 1.4; }
.trk b { display: block; color: var(--text); font-size: 13.5px; }
.trk i { font-style: normal; color: var(--accent); font-weight: 600; font-size: 11.5px; letter-spacing: .6px; text-transform: uppercase; display: block; margin-top: 3px; }
@media (max-width: 1040px) { .tiles, .tiles.t4 { grid-template-columns: repeat(2, 1fr); } .mods { grid-template-columns: 1fr; } .phases { grid-template-columns: 1fr; } }
@media (max-width: 680px) { .tiles, .tiles.t4 { grid-template-columns: 1fr; } .trackgrid { grid-template-columns: 1fr; } }

/* ---------- component map ---------- */
.map { background: var(--card); border: 1px solid var(--line-2); border-radius: var(--radius); box-shadow: var(--shadow); padding: 22px 22px 14px; overflow-x: auto; }
.map svg { width: 100%; min-width: 900px; height: auto; display: block; }
.node { cursor: pointer; }
.node .bx { fill: #fff; stroke: var(--line); stroke-width: 1.2; transition: stroke .15s, fill .15s; }
.node:hover .bx, .node.active .bx { stroke: var(--accent); stroke-width: 2; fill: #f7faff; }
.node .t { fill: var(--text); font-size: 15px; font-weight: 600; }
.node .s { fill: var(--muted); font-size: 11.5px; }
.band { fill: var(--bg); stroke: var(--line-2); }
.band-t { fill: var(--muted); font-size: 11px; letter-spacing: 1.4px; font-weight: 600; }
.flow { stroke: #b9c9ea; stroke-width: 2; fill: none; stroke-dasharray: 6 6; animation: dash 1.1s linear infinite; }
.flow.h { stroke: #e8c99a; }
@keyframes dash { to { stroke-dashoffset: -12; } }
.dot { fill: var(--accent); }
.map-panel { margin-top: 14px; min-height: 74px; border-top: 1px solid var(--line-2); padding-top: 14px; display: flex; gap: 18px; align-items: flex-start; }
.map-panel h4 { font-size: 15px; letter-spacing: 0; text-transform: none; color: var(--text); margin: 0 0 4px; }
.map-panel p { font-size: 14px; color: var(--text-2); line-height: 1.5; }
.map-panel .go { white-space: nowrap; font-size: 13.5px; font-weight: 600; margin-top: 2px; }

/* ---------- autonomy ladder ---------- */
.ladder { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 8px; }
.rung { position: relative; background: var(--card); border: 1px solid var(--line-2); padding: 26px 26px 22px; cursor: pointer; transition: box-shadow .2s, transform .2s var(--ease); text-align: left; font: inherit; color: inherit; display: flex; flex-direction: column; align-items: stretch; justify-content: flex-start; }
.rung .who { margin-top: auto; padding-top: 14px; }
.rung:first-child { border-radius: var(--radius) 0 0 var(--radius); }
.rung:last-child { border-radius: 0 var(--radius) var(--radius) 0; }
.rung + .rung { border-left: 0; }
.rung:hover { box-shadow: var(--shadow-2); z-index: 1; transform: translateY(-2px); }
.rung.active { z-index: 2; box-shadow: 0 0 0 3px var(--accent-soft), var(--shadow-2); border-color: var(--accent); }
.rung .stage { font-size: 12.5px; letter-spacing: 1.4px; text-transform: uppercase; font-weight: 700; }
.rung .stage.h { color: var(--human); } .rung .stage.p { color: var(--accent); } .rung .stage.a { color: var(--auto); }
.rung h3 { font-size: 21px; margin: 8px 0 8px; }
.rung p { font-size: 14.5px; color: var(--text-2); line-height: 1.5; }
.rung .who { margin-top: 14px; display: flex; gap: 6px; flex-wrap: wrap; }
.pill { display: inline-block; font-size: 12px; font-weight: 600; padding: 4px 10px; border-radius: 999px; background: var(--bg-2); color: var(--text-2); }
.pill.h { background: var(--human-soft); color: var(--human); }
.pill.a { background: var(--auto-soft); color: var(--auto); }
.pill.b { background: var(--accent-soft); color: var(--accent); }
.rung .arrow { position: absolute; right: -13px; top: 50%; transform: translateY(-50%); width: 26px; height: 26px; border-radius: 50%; background: #fff; border: 1px solid var(--line); display: grid; place-items: center; font-size: 13px; color: var(--accent); z-index: 3; }
.rung:last-child .arrow { display: none; }

/* gate chips */
.gates { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.gate { flex: 1 1 96px; min-width: 96px; background: var(--bg); border: 1px solid var(--line-2); border-radius: var(--radius-s); padding: 12px 11px 10px; }
.gate b { display: block; font-size: 15px; color: var(--human); }
.gate.auto b { color: var(--auto); }
.gate.cust b { color: var(--accent); }
.gate span { display: block; font-size: 12px; color: var(--muted); line-height: 1.4; margin-top: 3px; }

/* ---------- proof / measured ---------- */
.proof { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.proof .card h3 { font-size: 20px; }
.kv { list-style: none; margin-top: 8px; }
.kv li { display: grid; grid-template-columns: 120px 1fr; gap: 14px; padding: 9px 0; border-top: 1px solid var(--line-2); font-size: 14.5px; line-height: 1.45; color: var(--text-2); }
.kv li:first-child { border-top: 0; }
.kv li b { color: var(--text); font-variant-numeric: tabular-nums; font-size: 18px; font-weight: 700; letter-spacing: -.3px; }
.kv li .src { color: var(--muted); font-size: 12.5px; display: block; }

/* ---------- delivery tracks ---------- */
.tracks { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 0; align-items: stretch; margin-top: 8px; }
.track { background: var(--card); border: 1px solid var(--line-2); padding: 22px 22px 18px; position: relative; }
.track:first-child { border-radius: var(--radius) 0 0 var(--radius); }
.track:last-child { border-radius: 0 var(--radius) var(--radius) 0; }
.track + .track { border-left: 0; }
.track .stage { font-size: 12.5px; letter-spacing: 1.4px; text-transform: uppercase; color: var(--accent); font-weight: 700; }
.track h3 { font-size: 19px; margin: 8px 0 6px; }
.track p { font-size: 14px; color: var(--text-2); line-height: 1.5; }
.track ul { margin: 8px 0 0 18px; font-size: 13.5px; color: var(--text-2); }
.track li { margin: 3px 0; }
.track .arrow { position: absolute; right: -13px; top: 40px; width: 26px; height: 26px; border-radius: 50%; background: #fff; border: 1px solid var(--line); display: grid; place-items: center; font-size: 13px; color: var(--accent); z-index: 3; }
.track:last-child .arrow { display: none; }

/* ---------- boundaries strip ---------- */
.bounds { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.bound { background: var(--card); border: 1px solid var(--line-2); border-radius: var(--radius-s); padding: 16px 18px; font-size: 14.5px; color: var(--text-2); line-height: 1.5; box-shadow: var(--shadow); }
.bound b { color: var(--text); display: block; margin-bottom: 3px; }

/* ---------- documentation bridge ---------- */
.doccards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.doccard { display: block; background: var(--card); border: 1px solid var(--line-2); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); color: var(--text); transition: transform .2s var(--ease), box-shadow .2s, border-color .2s; }
.doccard:hover { transform: translateY(-3px); box-shadow: var(--shadow-2); text-decoration: none; border-color: #cfd6e6; }
.doccard .num { font-size: 12px; letter-spacing: 1.2px; color: var(--accent); font-weight: 700; text-transform: uppercase; }
.doccard h3 { font-size: 19px; margin: 8px 0 6px; }
.doccard p { font-size: 14px; color: var(--text-2); line-height: 1.5; }
.doccard .go { display: block; margin-top: 12px; font-size: 13.5px; font-weight: 600; color: var(--accent); }

/* ---------- callouts ---------- */
.callout { border-left: 3px solid var(--accent); background: var(--accent-soft); padding: 14px 18px; border-radius: 0 var(--radius-s) var(--radius-s) 0; font-size: 15px; color: var(--text-2); margin-top: 20px; line-height: 1.5; }
.callout.human { border-color: var(--human); background: var(--human-soft); }
.callout.auto { border-color: var(--auto); background: var(--auto-soft); }
.callout b { color: var(--text); }

/* ---------- tooltip ---------- */
#tip { position: fixed; z-index: 90; max-width: 360px; pointer-events: none; background: #1d1d1f; color: #fff; border-radius: 12px; padding: 12px 14px; box-shadow: var(--shadow-2); opacity: 0; transition: opacity .12s; font-size: 13px; line-height: 1.5; }
#tip h5 { font-size: 13px; margin-bottom: 4px; color: #fff; font-weight: 600; }
#tip p { color: rgba(255,255,255,.8); }
#tip .go { display: block; margin-top: 6px; color: #9dc0ff; font-weight: 600; font-size: 12px; }

/* ---------- footer ---------- */
footer { border-top: 1px solid var(--line-2); background: #fff; padding: 40px 0 56px; color: var(--muted); font-size: 13.5px; }
footer .wrap { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; }
footer b { color: var(--text); display: block; margin-bottom: 8px; font-size: 14px; }
footer a { color: var(--muted); display: block; margin: 4px 0; font-size: 13px; }
footer a:hover { color: var(--accent); text-decoration: none; }
footer .fine { margin-top: 10px; line-height: 1.55; max-width: 44ch; }

/* ---------- responsive ---------- */
@media (max-width: 1040px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .cards.c3, .cards.c4, .doccards { grid-template-columns: repeat(2, 1fr); }
  .panel-grid { grid-template-columns: 1fr; }
  .tracks { grid-template-columns: repeat(2, 1fr); }
  .track:first-child, .track:last-child, .track { border-radius: 0; }
  .track + .track { border-left: 1px solid var(--line-2); }
  .track .arrow { display: none; }
  footer .wrap { grid-template-columns: 1fr 1fr; }
  nav.top a.nl { display: none; }
  nav.top .menu { display: inline-block; font-size: 13px; color: var(--muted); }
}
@media (max-width: 680px) {
  .wrap { padding: 0 18px; }
  .stats, .cards.c3, .cards.c2, .cards.c4, .doccards, .proof, .bounds, .ladder, .tracks { grid-template-columns: 1fr; }
  .rung, .rung:first-child, .rung:last-child { border-radius: 0; }
  .rung + .rung { border-left: 1px solid var(--line-2); border-top: 0; }
  .rung .arrow { display: none; }
  .panel-inner { padding: 26px 20px 22px; }
  section.sec { padding: 64px 0 56px; }
  .hero { padding-top: 56px; }
  .case-showcase { margin-top: 30px; }
  .case-showcase-meta { align-items: center; }
  .case-showcase-meta p { font-size: 12px; }
  .case-showcase-track { height: min(64vw, 390px); min-height: 315px; gap: 8px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; }
  .case-showcase-track::-webkit-scrollbar { display: none; }
  .case-slide, .case-slide.is-active { flex: 0 0 88%; scroll-snap-align: center; }
  .case-slide:not(.is-active) { flex-basis: 58px; }
  .case-slide-copy { left: 12px; bottom: 15px; width: calc(100% - 24px); padding: 12px 14px 13px; }
  .case-slide-copy small { display: none; }
  .case-slide-progress { left: 18px; right: 18px; bottom: 8px; }
  footer .wrap { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .flow { animation: none; }
  .expander { transition: none; }
  .case-slide { transition: none; }
  .case-slide-progress span { animation: none !important; }
  * { animation-duration: 0s !important; }
}

/* ---------- the immutable platform slab, and the case-study surfaces ---------- */
.slab.platform { background: #1d1d1f; border-color: #1d1d1f; box-shadow: 0 2px 6px rgba(0,0,0,.18), 0 22px 50px rgba(29,29,31,.22); }
.slab.platform .lbl { color: rgba(255,255,255,.5); }
.slab.platform .lbl b { color: #9dc0ff; }
.slab.platform .tile { background: rgba(255,255,255,.055); border-color: rgba(255,255,255,.14); }
.slab.platform .tile b { color: #fff; }
.slab.platform .tile span { color: rgba(255,255,255,.58); }
.slab.platform .tile:hover, .slab.platform .tile.active { background: rgba(255,255,255,.11); border-color: #9dc0ff; }
.slab.caseish, .chanband .pills .pill-x, .flowwrap { background: #f7f9fd; }
.slab.caseish { border-color: #dde5f4; }
.slab.caseish .lbl b { color: var(--accent); }
.slab.caseish .mod { background: #fff; border-color: #dde5f4; }
.flowwrap { border-color: #dde5f4; }
.outslab { background: #f7f9fd; border-color: #dde5f4; }
.outrow .pill-x { background: #fff; border-color: #dde5f4; }
.outrow.infra .pill-x { background: transparent; border-style: dashed; border-color: #c9d2e2; }
.mods-tag { display: block; margin-top: 8px; font-size: 11px; letter-spacing: .8px; text-transform: uppercase; color: var(--accent); font-weight: 600; }
.outrow.infra .mods-tag { color: var(--muted); }
.spine .down::before { background: linear-gradient(180deg, var(--line) 0%, #b9c9ea 50%, var(--line) 100%); }

.trk.wide { grid-column: 1 / -1; }

/* ---------- 04.09 evening: the platform as one band; the root module above the three working modules (D146) ---------- */
.platband { width: 100%; display: flex; align-items: center; gap: 18px; flex-wrap: wrap; padding: 8px 18px; border: 1px dashed var(--line); border-radius: 999px; background: transparent; color: var(--muted); font-size: 12px; line-height: 1.4; }
.platband .pb-lbl { font-size: 11px; letter-spacing: 1.4px; text-transform: uppercase; font-weight: 600; color: var(--muted); white-space: nowrap; }
.platband .pb-lbl i { font-style: normal; font-weight: 400; letter-spacing: 0; text-transform: none; margin-left: 8px; color: #9a9aa0; }
.platband .pb-parts { flex: 1; min-width: 0; color: #9a9aa0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; text-align: center; }
.platband .pb-link { font-size: 12px; font-weight: 600; color: var(--muted); white-space: nowrap; }
.platband .pb-link small { font-size: 12px; margin-left: 2px; }
.platband .pb-link:hover { color: var(--accent); text-decoration: none; }
.modtree { width: 100%; }
.mod.root { border-color: var(--accent); background: #fff; }
.mod.root .k { color: var(--accent); }
.mod .routes { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; margin-top: 12px; font-size: 12px; }
.mod .routes i { font-style: normal; color: var(--muted); letter-spacing: .8px; text-transform: uppercase; font-size: 10.5px; margin-right: 2px; }
.mod .routes .rt { border: 1px solid #b9c9ea; color: var(--accent); border-radius: 999px; padding: 2px 9px; background: #f7faff; }
.mod .routes .rt.wait { border-color: #ecd5ad; color: var(--human); background: var(--human-soft); }
.mod .modfoot { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-top: auto; padding-top: 12px; }
.mod .modfoot .more { margin-top: 0; padding-top: 0; display: inline-flex; align-items: center; gap: 6px; font-size: 13.5px; font-weight: 600; color: var(--accent); }
.mod .modfoot .more::after { content: "+"; display: inline-grid; place-items: center; width: 20px; height: 20px; border-radius: 50%; background: var(--accent-soft); font-size: 15px; line-height: 1; transition: transform .25s var(--ease); }
.mod.active .modfoot .more::after { transform: rotate(45deg); }
.mod .tree { font-size: 12.5px; font-weight: 600; color: var(--muted); white-space: nowrap; }
.mod .tree:hover { color: var(--accent); text-decoration: none; }
.fan { position: relative; height: 30px; margin: 0 16.66%; }
.fan::before { content: ""; position: absolute; left: 0; right: 0; top: 14px; height: 2px; background: #b9c9ea; }
.fan::after { content: ""; position: absolute; left: 50%; top: 0; width: 2px; height: 14px; margin-left: -1px; background: #b9c9ea; }
.fan i { position: absolute; top: 14px; width: 2px; height: 16px; background: #b9c9ea; margin-left: -1px; }
.fan i:nth-child(1) { left: 0; } .fan i:nth-child(2) { left: 50%; } .fan i:nth-child(3) { left: 100%; }
a.fstep { color: inherit; text-decoration: none; display: block; transition: border-color .15s, transform .15s var(--ease), box-shadow .15s; }
a.fstep:hover { text-decoration: none; border-color: var(--accent); transform: translateY(-2px); box-shadow: var(--shadow); }
@media (max-width: 1040px) { .fan { display: none; } .platband { justify-content: center; text-align: center; border-radius: 18px; } .platband .pb-parts { white-space: normal; } }

/* ---------- 04.09 night: channels "or any other"; the working modules interact; post-workflow steps ---------- */
.pill-x.any { border-style: dashed; color: var(--muted); background: transparent; box-shadow: none; font-weight: 400; }
.modsrow { position: relative; }
.modsrow .swap { position: absolute; top: 50%; transform: translate(-50%, -50%); width: 28px; height: 28px; border-radius: 50%; background: #fff; border: 1px solid #b9c9ea; color: var(--accent); font-size: 15px; line-height: 26px; text-align: center; z-index: 2; box-shadow: var(--shadow); cursor: help; }
.modsrow .swap::before { content: "\21C4"; font-style: normal; }
.interact { display: flex; align-items: center; gap: 14px; margin: 14px 2px 0; }
.interact .il { flex: 1; height: 0; border-top: 1px dashed #b9c9ea; position: relative; }
.interact .il:first-child::before { content: "\25C2"; position: absolute; left: -3px; top: -10px; color: #8fa2c4; font-size: 13px; line-height: 1; }
.interact .il:last-child::after { content: "\25B8"; position: absolute; right: -3px; top: -10px; color: #8fa2c4; font-size: 13px; line-height: 1; }
.interact .ilbl { font-size: 12px; color: var(--muted); text-align: center; max-width: 76ch; line-height: 1.45; }
.interact .ilbl b { color: var(--accent); }
.fstep.post { background: #f4f1fc; border-color: #d3c8f0; border-style: dashed; }
.fstep.post b { color: #5b3fa8; }
.fstep.post .cnd { color: #5b3fa8; }
.flegend { margin-left: auto; display: flex; align-items: center; gap: 6px; font-size: 11.5px; color: var(--muted); white-space: nowrap; }
.flegend i { display: inline-block; width: 10px; height: 10px; border-radius: 3px; border: 1px solid; margin-left: 10px; }
.flegend i.h { background: var(--human-soft); border-color: #ecd5ad; }
.flegend i.a { background: var(--auto-soft); border-color: #b7e2cb; }
.flegend i.post { background: #f4f1fc; border-color: #d3c8f0; }
@media (max-width: 1040px) { .modsrow .swap { display: none; } .flegend { margin-left: 0; white-space: normal; } }

/* ---------- 04.09 night: a module card is a link into its technical document ---------- */
a.mod, a.mod:hover { text-decoration: none; color: inherit; }
.mod .modfoot .more.go::after { content: "\2197"; background: none; width: auto; height: auto; font-size: 13px; transform: none; }

/* ---------- 04.09 night: diagonal person/signed halves; the asynchronous step as a detached bubble ---------- */
.fstep.ha { background: linear-gradient(135deg, var(--human-soft) 0 50%, var(--auto-soft) 50% 100%); border-color: #d6cfa8; }
.fstep.ha b { color: var(--human); }
.flegend i.ha { background: linear-gradient(135deg, var(--human-soft) 50%, var(--auto-soft) 50%); border-color: #d6cfa8; }
.flow-async { display: flex; justify-content: flex-end; align-items: center; gap: 14px; margin-top: 22px; position: relative; }
.flow-async::before { content: ""; position: absolute; right: 88px; top: -22px; height: 22px; border-left: 2px dotted #b9a8e6; }
.flow-async::after { content: ""; position: absolute; right: 84px; top: -4px; width: 10px; height: 10px; border-radius: 50%; background: #fff; border: 2px dotted #b9a8e6; box-sizing: border-box; }
.flow-async .alabel { font-size: 10.5px; letter-spacing: .8px; text-transform: uppercase; color: #5b3fa8; font-weight: 600; white-space: nowrap; }
.flow-async .fstep.post { flex: 0 1 380px; min-width: 0; border-radius: 16px 16px 16px 4px; box-shadow: 0 1px 2px rgba(0,0,0,.03), 0 8px 22px rgba(91,63,168,.08); }
.flow-async .fstep.post::before { display: none; }
@media (max-width: 680px) { .flow-async { justify-content: stretch; flex-wrap: wrap; } .flow-async .fstep.post { flex: 1 1 100%; } .flow-async::before, .flow-async::after { display: none; } }

/* the five platform parts link to their documents, as quietly as the strip around them */
.platband .pb-parts a { color: #8a8a90; border-bottom: 1px dotted #c9c9cf; }
.platband .pb-parts a:hover { color: var(--accent); border-bottom-color: var(--accent); text-decoration: none; }

/* ---------- 04.09 night: goals and proof are one section; the platform's four as linked cards ---------- */
.plat-h { margin-top: 36px; font-size: 22px; letter-spacing: -.4px; }
.plat-cards { margin-top: 14px; }
a.card, a.card:hover { text-decoration: none; color: inherit; }
a.card .more::after { content: "\2192"; background: none; width: auto; height: auto; font-size: 14px; }
.plat-not { margin-top: 18px; }
.plat-not a { color: var(--accent); }