/* case.css: shared styles for the five case-study pages. Tokens, nav, type, cards, chips, diagram modules and the contact band are copied verbatim from ../home.html; case-specific components follow below. */
:root {
  --paper: #faf8f5;
  --card: #ffffff;
  --ink: #0f2742;
  --navy: #1d3f6e;
  --navy-hover: #16325a;
  --ink-2: #4a5a6e;
  --ink-3: #5f6b7a;
  --line: rgba(11,27,46,.10);
  --wire: rgba(11,27,46,.28);
  --teal: #0e7c74;
  --teal-wash: rgba(14,124,116,.08);
  --shadow: 0 2px 5px rgba(11,27,46,.035), 0 10px 24px -12px rgba(11,27,46,.12);
  --shadow-up: 0 4px 8px rgba(11,27,46,.05), 0 16px 32px -12px rgba(11,27,46,.18);
  --font-display: "Inter Tight", "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-text: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --nav-h: 56px;
  --gutter: clamp(20px, 5vw, 72px);
  --teal-400: #2bb3a6; --teal-100: #d7efec;
  --sky: #3b82c4;      --sky-100: #e2eef9;
  --green: #1f9d72;    --green-100: #dcf2e9;
  --violet: #7056c8;   --violet-100: #ebe6fa;
  --amber: #d38419;    --amber-100: #fbedd8;
  --navy-100: #e3e9f2;
  --amber-ink: #a8650e; --green-ink: #178059;   /* state borders and edges (3:1 on white); solid --amber / --green stay on small accents */
  --band: #eef3f2;     /* light teal-tinted section background */
}
/* Sector colour coding (copied from home): --sc accent, --si ink for edges and strokes, --st tint for fills */
.s-estate  { --sc: var(--green); --si: var(--green-ink);  --st: var(--green-100); }
.s-rfq     { --sc: var(--sky); --si: var(--sky);    --st: var(--sky-100); }
.s-docs    { --sc: var(--violet); --si: var(--violet); --st: var(--violet-100); }
.s-clients { --sc: var(--amber); --si: var(--amber-ink);  --st: var(--amber-100); }
.s-rollout { --sc: var(--navy); --si: var(--navy);   --st: var(--navy-100); }
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font-family: var(--font-text); font-size: 16px; line-height: 1.5;
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility; overflow-x: clip;
}
h1, h2, p { margin: 0; }
a { color: inherit; text-decoration: none; }
:focus-visible { outline: 2px solid var(--teal); outline-offset: 3px; border-radius: 6px; }
[tabindex="-1"]:focus { outline: none; }

/* ---------- Nav ---------- */
/* ---------- Nav ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; height: var(--nav-h); z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 var(--gutter);
  background: rgba(250,248,245,.9);
  -webkit-backdrop-filter: saturate(160%) blur(14px); backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid transparent; transition: border-color .4s ease;
}
.nav.scrolled { border-bottom-color: var(--line); }
.nav-name { display: inline-flex; align-items: center; gap: 10px; font: 600 16px/1 var(--font-display); }
.nav-mark { flex: none; width: 28px; height: 28px; display: block; }
.nav-r { display: flex; align-items: center; gap: 28px; }
.nav-r a.l { font-size: 14px; color: var(--ink-2); transition: color .25s; }
.nav-r a.l:hover { color: var(--ink); }
.pill {
  display: inline-flex; align-items: center; height: 36px; padding: 0 16px; border-radius: 999px;
  background: var(--navy); color: #fff; font: 500 14px/1 var(--font-text); transition: background .3s ease;
}
.pill:hover, .pill:active { background: var(--navy-hover); }


/* ---------- Shared bits ---------- */
.k { color: var(--teal); }
.sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.btn {
  display: inline-flex; align-items: center; height: 48px; padding: 0 24px; border-radius: 999px;
  background: var(--navy); color: #fff; font: 500 15px/1 var(--font-text); transition: background .3s ease;
}
.btn:hover, .btn:active { background: var(--navy-hover); }
.tlink { font: 500 15px/1 var(--font-text); color: var(--ink); border-bottom: 1px solid transparent; padding-bottom: 2px; transition: border-color .25s; }
.tlink:hover { border-bottom-color: var(--ink); }
.eyebrow { font: 600 13px/1 var(--font-display); letter-spacing: .14em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 24px; }

/* ---------- Section shell, type, surfaces, chips (home) ---------- */
h2, h3, h4, ul, ol, dl, figure, details { margin: 0; }
ul, ol { padding: 0; list-style: none; }
button { font: inherit; color: inherit; }
section[id] { scroll-margin-top: var(--nav-h); }

/* Nav: active link and the navy-band variant */
.nav { transition: border-color .4s ease, background-color .4s ease; }
.nav-r a.l { padding: 6px 0; border-bottom: 2px solid transparent; transition: color .25s, border-color .25s; }
.nav-r a.l.is-active { color: var(--ink); border-bottom-color: var(--teal); }

/* Shell, type, surfaces */
.sec { padding: clamp(96px, 12vw, 160px) var(--gutter); }
.wrap { max-width: 1200px; margin: 0 auto; }
.h2 { font: 600 clamp(30px, 3.7vw, 52px)/1.1 var(--font-display); letter-spacing: -.03em; color: var(--ink); text-wrap: balance; max-width: 22ch; }
.h3s { font: 600 clamp(26px, 2.6vw, 34px)/1.12 var(--font-display); letter-spacing: -.025em; color: var(--ink); text-wrap: balance; }
.lead { font-size: clamp(17px,1.5vw,19px); line-height: 1.55; color: var(--ink-2); max-width: 60ch; text-wrap: pretty; }
.sec-h { margin-bottom: clamp(48px, 6vw, 80px); }
.sec-h .lead { margin-top: 24px; }
.sf { background: var(--card); border: 1px solid var(--line); border-radius: 20px; box-shadow: var(--shadow); }
.lab { display: flex; align-items: center; gap: 8px; font: 600 13px/1.2 var(--font-display); letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 12px; }
.lab.dec { color: var(--teal); }
.lab.dec::before { content: ""; flex: none; width: 6px; height: 6px; border-radius: 50%; background: var(--teal); }
.tag { display: inline-flex; align-items: center; height: 32px; padding: 0 14px; border-radius: 999px; background: rgba(11,27,46,.05); font: 500 14px/1 var(--font-text); color: var(--ink); white-space: nowrap; }
.st, .cpt { display: inline-flex; align-items: center; gap: 8px; height: 32px; padding: 0 14px; border-radius: 999px; font: 500 14px/1 var(--font-text); white-space: nowrap; }
.st { background: var(--card); border: 1px solid var(--wire); color: var(--ink-2); }
.cpt { border: 1px dashed var(--wire); color: var(--ink-3); }
.js:not(.rm):not(.fallback):not(.rv-off) [data-rv] { opacity: 0; }

/* ---------- Diagram card (home) ---------- */
.dg { padding: 24px; min-height: 420px; display: flex; flex-direction: column; min-width: 0; }
.dg-h { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 20px; }
.dg-t { font: 600 13px/1 var(--font-display); letter-spacing: .14em; text-transform: uppercase; color: var(--ink-3); }
.rp { height: 32px; padding: 0 0 0 12px; border: 0; border-radius: 6px; background: none; font: 500 13px/1 var(--font-text); color: var(--ink-2); cursor: pointer; transition: color .25s; }
.rp:hover { color: var(--ink); }
.rp:focus-visible { outline: 2px solid var(--teal); outline-offset: 3px; }
.rm .rp { display: none; }
.dg-b { flex: 1; min-width: 0; padding: 4px; margin: -4px; overflow-x: auto; overflow-y: hidden; display: flex; flex-direction: column; justify-content: center; }
.dg-b.pre { opacity: .35; }   /* structure at rest, dimmed, until the diagram first plays */

/* ---------- Diagrams 1 to 5 (home) ---------- */
/* Diagram 1: estate */
.est-top { margin-bottom: 16px; }
.est-cnt { display: grid; }
.est-cnt b { grid-area: 1 / 1; font: 600 22px/1.2 var(--font-display); letter-spacing: -.015em; }
.est-cnt .ca { color: var(--ink-3); opacity: 0; }
.est-cols { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.est-col { position: relative; padding: 16px 14px 14px; }
.est-bg { position: absolute; inset: 0; border-radius: 14px; background: rgba(11,27,46,.03); border: 1px solid var(--line); }
.est-hd { position: relative; display: flex; flex-direction: column; gap: 3px; margin-bottom: 14px; }
.est-hd b { display: flex; align-items: center; gap: 8px; font: 600 15px/1.2 var(--font-display); }
.est-hd small { font-size: 13px; line-height: 1.3; color: var(--ink-3); }
.est-col.k .est-hd b::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--teal); }
.est-tiles { position: relative; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.est-t { position: relative; height: 34px; display: flex; align-items: center; justify-content: center; border-radius: 8px; background: var(--card); border: 1px solid var(--wire); font: 500 13px/1 var(--font-text); color: var(--ink); white-space: nowrap; }
.est-t.rev { border-style: dashed; color: var(--ink-2); }
.est-t .ring { position: absolute; inset: -1px; border-radius: 8px; border: 1.5px solid var(--teal); pointer-events: none; }
.est-fig { margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--line); display: grid; grid-template-columns: repeat(3, auto); justify-content: space-between; gap: 8px 16px; }
.est-fig b { display: block; font: 600 22px/1.2 var(--font-display); letter-spacing: -.015em; }
.est-fig span { font-size: 13px; color: var(--ink-3); }
.est-fig p { grid-column: 1 / -1; font-size: 13px; color: var(--ink-3); }

/* Diagram 2: RFQ and Quote status tracks */
.rfq { position: relative; display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); grid-template-rows: 24px 60px 52px 32px 64px 60px 52px 28px; min-width: 800px; }
.rq-lab { align-self: start; font: 600 13px/1 var(--font-display); letter-spacing: .14em; text-transform: uppercase; color: var(--ink-3); }
.rq-lab.r { grid-column: 1 / 4; grid-row: 1; }
.rq-lab.q { grid-column: 1 / 4; grid-row: 4; align-self: center; }
.rq-cell { position: relative; z-index: 1; display: flex; padding: 0 5px; grid-column: var(--c); }
.rq-cell.r { grid-row: 2; }
.rq-cell.q { grid-row: 6; }
.rq-cell:not(.last):not(.side)::after { content: ""; position: absolute; right: -5px; top: 50%; width: 10px; height: 1.5px; background: var(--wire); transform: translateY(-.75px); }
.rq-cell.side { align-items: flex-start; }
.rq-cell.side.r { grid-row: 3; }
.rq-cell.side.q { grid-row: 7; }
.rq-cell.side::before { content: ""; position: absolute; left: 50%; top: 0; height: 16px; border-left: 1.5px dashed var(--wire); }
.rq-cell.side.nostub::before { display: none; }
.rq-cell.side .chip2 { margin-top: 16px; align-self: flex-start; min-height: 34px; }
.chip2 { position: relative; display: flex; align-items: center; gap: 7px; width: 100%; padding: 6px 9px; border-radius: 12px; background: var(--card); border: 1px solid rgba(11,27,46,.16); box-shadow: 0 1px 1px rgba(11,27,46,.04); font: 500 13px/1.2 var(--font-text); color: var(--ink); }
.chip2 .dot { position: relative; flex: none; width: 7px; height: 7px; border-radius: 50%; background: var(--wire); }
.chip2 .dot b { position: absolute; inset: 0; border-radius: 50%; background: var(--teal); opacity: 0; }
.chip2 .tx { position: relative; z-index: 1; }
.chip2 .wash, .chip2 .ring { position: absolute; inset: -1px; border-radius: inherit; pointer-events: none; opacity: 0; }
.chip2 .wash { background: var(--teal-wash); }
.chip2 .ring { border: 1px solid var(--teal); }
.chip2.v .wash, .chip2.v .dot b, .chip2.fin .ring { opacity: 1; }
.chip2.neg { border-style: dashed; background: transparent; box-shadow: none; color: var(--ink-2); }
.chip2.neg .dot { background: none; box-shadow: inset 0 0 0 1.5px var(--wire); }
.rq-ln { background: var(--teal); }
.rq-ln.rs { grid-column: 5; grid-row: 3 / 5; justify-self: center; width: 1.5px; }
.rq-ln.hz { grid-column: 1 / 6; grid-row: 5; margin: 0 calc(100% / 10); height: 1.5px; align-self: start; }
.rq-ln.ls { grid-column: 1; grid-row: 5; justify-self: center; width: 1.5px; position: relative; }
.rq-ln.ls::after { content: ""; position: absolute; left: -4.25px; bottom: 0; border: 5px solid transparent; border-top: 7px solid var(--teal); border-bottom: 0; }
.rq-ln-lab { position: relative; grid-column: 1 / 6; grid-row: 5; justify-self: center; align-self: start; margin-top: -13px; display: inline-flex; align-items: center; gap: 7px; padding: 4px 11px; border-radius: 999px; background: var(--card); border: 1px solid rgba(14,124,116,.32); font: 500 13px/1.2 var(--font-text); color: var(--ink); white-space: nowrap; }
.rq-ln-lab::before, .rq-tag::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--teal); }
.rq-tagw { position: absolute; left: 100%; top: -34px; transform: translateX(-50%); z-index: 2; }
.rq-tag { display: inline-flex; max-width: 100%; align-items: center; gap: 7px; padding: 4px 11px; border-radius: 999px; background: var(--card); border: 1px solid rgba(14,124,116,.32); font: 500 13px/1.2 var(--font-text); color: var(--ink); white-space: nowrap; }
.rq-ret { position: relative; grid-column: 2 / 6; grid-row: 7 / 9; margin: 0 calc(100% / 8); border: 1.5px dashed var(--wire); border-top: 0; border-radius: 0 0 10px 10px; }
.rq-ret::before { content: ""; position: absolute; left: -5.75px; top: -1px; border: 5px solid transparent; border-top: 0; border-bottom: 7px solid var(--ink-3); }
.rq-ret span { position: absolute; left: 50%; bottom: 0; transform: translate(-50%, 50%); padding: 0 8px; background: var(--card); font: 500 13px/1.2 var(--font-text); color: var(--ink-3); white-space: nowrap; }
.rq-tok { position: absolute; left: 0; top: 0; z-index: 3; width: 14px; height: 14px; border-radius: 50%; background: var(--teal); box-shadow: 0 0 0 3px rgba(14,124,116,.18); pointer-events: none; opacity: 0; }
.rq-hand, .rq-hlab { display: none; }

/* Diagram 3: documents */
.dc-strip { display: grid; grid-template-columns: minmax(0, 1fr) 24px auto 24px minmax(0, 1fr); align-items: center; margin-bottom: 18px; }
.dc-node { display: flex; align-items: center; gap: 10px; padding: 12px 14px; border-radius: 14px; background: var(--card); border: 1px solid var(--line); box-shadow: var(--shadow); }
.dc-node span:last-child { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.dc-node b { font: 600 14px/1.2 var(--font-display); }
.dc-node small { font-size: 13px; line-height: 1.3; color: var(--ink-3); }
.dc-gr { padding: 8px 14px; border-radius: 999px; background: var(--card); border: 1px solid var(--wire); font: 500 13px/1 var(--font-text); white-space: nowrap; }
.dc-ln { height: 1.5px; background: var(--wire); transform-origin: left center; }
.dc-win { border: 1px solid var(--line); border-radius: 14px; background: var(--card); overflow: hidden; }
.dc-bar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px 14px; padding: 12px 14px; border-bottom: 1px solid var(--line); background: rgba(11,27,46,.025); }
.dc-search { flex: 1 1 200px; min-width: 0; height: 36px; display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 0 12px; border-radius: 10px; background: var(--card); border: 1px solid var(--line); font-size: 13px; color: var(--ink-3); }
.dc-cnt { display: grid; justify-items: end; font-weight: 600; color: var(--ink); white-space: nowrap; }
.dc-cnt span { grid-area: 1 / 1; }
.dc-cnt .c-a { opacity: 0; }
.dc-seg { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--ink-3); }
.dc-tg { position: relative; display: grid; grid-auto-flow: column; grid-auto-columns: minmax(0, 1fr); padding: 3px; border-radius: 10px; background: rgba(11,27,46,.07); }
.dc-ind { position: absolute; top: 3px; bottom: 3px; left: 50%; width: calc(50% - 3px); border-radius: 8px; background: var(--card); box-shadow: 0 1px 2px rgba(11,27,46,.14); }
.dc-tg button { position: relative; height: 30px; padding: 0 12px; border: 0; background: none; font: 500 13px/1 var(--font-text); color: var(--ink); cursor: pointer; border-radius: 8px; white-space: nowrap; }
.dc-list > li { display: flex; align-items: center; height: 36px; padding: 0 14px; font-size: 13px; color: var(--ink); border-bottom: 1px solid var(--line); }
.dc-list > li:last-child { border-bottom: 0; }
.dc-list .l1 { padding-left: 34px; }
.dc-list .l2 { padding-left: 56px; }
.dc-list .fo { font-weight: 600; }
.dc-list .fo::before { content: ""; flex: none; width: 6px; height: 6px; margin-right: 10px; border-right: 1.5px solid var(--ink-3); border-bottom: 1.5px solid var(--ink-3); transform: rotate(-45deg); }
.dc-list .fi::before { content: ""; flex: none; width: 10px; height: 13px; margin-right: 10px; box-sizing: border-box; border: 1.5px solid var(--ink-3); border-radius: 2px; }
.dc-nm { display: grid; min-width: 0; }
.dc-nm > * { grid-area: 1 / 1; display: flex; align-items: center; min-width: 0; white-space: nowrap; }
.dc-nm .nm-r { opacity: 0; }
.dc-nm .nm-x i { display: inline-block; font-style: normal; min-width: 176px; padding: 3px 10px; border-radius: 6px; background: var(--ink); color: var(--paper); font-size: 13px; line-height: 1.3; }

/* Diagram 4: client management */
.cl { position: relative; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr) minmax(0, 1fr); gap: 24px; align-items: stretch; }
.cl-c { display: grid; grid-template-rows: auto 1fr; gap: 24px; }
.cl-dup, .cl-dec { display: flex; flex-direction: column; }
.cl-dup .cl-ev { margin-top: auto; padding-top: 12px; }
.cl-dec p { margin-top: auto; padding-top: 14px; }
.cl-p { position: relative; padding: 16px; border-radius: 14px; background: var(--card); border: 1px solid var(--line); box-shadow: 0 1px 2px rgba(11,27,46,.05); }
.cl-p.ar::after { content: ""; position: absolute; width: 9px; height: 9px; border-top: 1.5px solid var(--ink-3); border-right: 1.5px solid var(--ink-3); }
.cl-p.ar.dn::after { left: 50%; bottom: -17px; transform: translateX(-50%) rotate(135deg); }
.cl-p.ar.rt::after { right: -17px; top: 50%; transform: translateY(-50%) rotate(45deg); }
.cl-p .lab { margin-bottom: 10px; letter-spacing: .06em; text-transform: none; font-size: 13px; }
.cl-fld { position: relative; height: 40px; display: flex; align-items: center; padding: 0 12px; border-radius: 10px; background: var(--card); border: 1px solid var(--wire); font: 500 15px/1 var(--font-text); letter-spacing: .02em; }
.cl-fr { position: absolute; inset: -1px; border-radius: 10px; border: 1.5px solid var(--navy); pointer-events: none; opacity: 0; }
.cl-lk dl { display: grid; gap: 10px; }
.cl-lk dt { font-size: 13px; color: var(--ink-3); line-height: 1.3; }
.cl-lk dd { margin: 0; font: 500 14px/1.35 var(--font-text); }
.cl-p .lab:has(.cl-ok) { justify-content: space-between; }
.cl-ok { display: inline-flex; align-items: center; gap: 6px; padding: 3px 9px; border-radius: 999px; border: 1px solid var(--wire); font: 500 13px/1 var(--font-text); letter-spacing: 0; color: var(--ink-2); }
.cl-ok::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--teal); }
.cl-recs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.cl-rec { padding: 10px 11px; border-radius: 10px; background: rgba(11,27,46,.03); border: 1px solid var(--line); display: flex; flex-direction: column; gap: 3px; font-size: 13px; line-height: 1.35; color: var(--ink-2); }
.cl-rec small { font: 600 13px/1.2 var(--font-text); color: var(--ink-3); }
.cl-rec b { font: 600 13.5px/1.3 var(--font-text); color: var(--ink); }
.cl-ev { margin-top: 12px; display: grid; gap: 8px; }
.cl-ev li { display: flex; align-items: center; gap: 8px; padding: 7px 10px; border-radius: 8px; border: 1px solid var(--line); font: 500 13px/1.3 var(--font-text); color: var(--ink); }
.cl-ev li.wn { border-style: dashed; border-color: var(--wire); color: var(--ink-2); }
.cl-ev li i { flex: none; font-style: normal; font-weight: 600; width: 14px; text-align: center; color: var(--ink-2); }
.cl-btns { display: grid; gap: 10px; }
.cl-b { position: relative; height: 42px; display: flex; align-items: center; justify-content: center; border-radius: 999px; font: 500 14px/1 var(--font-text); border: 1px solid var(--wire); background: var(--card); color: var(--ink); overflow: hidden; }
.cl-b.main { border-color: var(--navy); }
.cl-b .hv { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; font-style: normal; background: var(--navy); color: #fff; opacity: 0; }
.cl-dec p { font-size: 13px; line-height: 1.45; color: var(--ink-3); }
.cl-cur { position: absolute; left: 0; top: 0; z-index: 3; pointer-events: none; opacity: 0; }

/* Diagram 5: rollout matrix */
.ro-g { display: grid; grid-template-columns: minmax(88px, 112px) repeat(5, minmax(0, 1fr)); gap: 8px; align-items: center; }
.ro-h { font: 600 13px/1.2 var(--font-display); letter-spacing: .02em; color: var(--ink-3); text-align: center; }
.ro-rl { font: 500 13px/1.25 var(--font-text); color: var(--ink); }
.ro-c { position: relative; display: grid; min-height: 44px; }
.ro-c > b { grid-area: 1 / 1; display: flex; align-items: center; justify-content: center; text-align: center; padding: 0 4px; border-radius: 8px; box-sizing: border-box; font: 500 13px/1.2 var(--font-text); }
.ro-c .g { background: var(--card); border: 1px solid rgba(29,63,110,.5); color: var(--ink-2); }
.ro-c .l { background: var(--teal-wash); border: 1px solid var(--teal); color: var(--ink); }
.ro-c.loc .g { opacity: 0; }
.ro-c:not(.loc) .l { display: none; }
.ro-gt { grid-column: 1 / -1; height: 1px; background: var(--line); margin: 4px 0; }
.ro-gc { display: flex; align-items: center; justify-content: center; gap: 7px; min-height: 44px; font: 600 13px/1.2 var(--font-text); color: var(--teal); }
.ro-gc i, .ro-lg .ck { flex: none; position: relative; width: 18px; height: 18px; border-radius: 50%; background: var(--teal); }
.ro-gc i::after, .ro-lg .ck::after { content: ""; position: absolute; left: 6px; top: 3.5px; width: 4px; height: 8px; border-right: 1.75px solid #fff; border-bottom: 1.75px solid #fff; transform: rotate(40deg); }
.ro-lg { margin-top: 18px; display: flex; flex-wrap: wrap; gap: 8px 20px; font-size: 13px; color: var(--ink-2); }
.ro-lg li { display: flex; align-items: center; gap: 8px; }
.ro-lg .sw { width: 22px; height: 14px; border-radius: 4px; box-sizing: border-box; }
.ro-lg .sw.g { border: 1px solid rgba(29,63,110,.5); background: var(--card); }
.ro-lg .sw.l { border: 1px solid var(--teal); background: var(--teal-wash); }

/* ---------- Contact (paper, compact) and footer: same as home ---------- */
.contact { padding: clamp(80px, 9vw, 128px) var(--gutter) clamp(48px, 5vw, 64px); }
.ct-h { font: 600 clamp(40px, 4.6vw, 64px)/1.04 var(--font-display); letter-spacing: -.03em; color: var(--ink); text-wrap: balance; max-width: 14ch; }
.ct-sub { margin-top: 20px; max-width: 46ch; font-size: 17px; line-height: 1.55; color: var(--ink-2); }
.ct-rows { margin-top: 32px; border-top: 1px solid var(--line); }
.ct-rows li { border-bottom: 1px solid var(--line); }
.ct-row { display: flex; align-items: center; gap: 14px; width: calc(100% + 20px); min-height: 64px; margin: 0 -10px; padding: 12px 10px; border: 0; border-radius: 8px; background: none; color: var(--ink); font: inherit; text-align: left; cursor: pointer; transition: background-color .25s; }
.ct-row:hover { background: rgba(11,27,46,.04); }
.ct-ic { flex: none; width: 40px; height: 40px; }
.ct-ic svg, .ct-ic img { display: block; width: 100%; height: 100%; }
.ct-v { white-space:normal; min-width: 0; font: 500 16px/1.35 var(--font-text); color: var(--ink); overflow-wrap: anywhere; user-select: text; }
#ct-mail { white-space: nowrap; font-size: clamp(14px, 4vw, 16px); }   /* same as home: the address never breaks, it shrinks to fit */
.ct-hint { margin-left: auto; flex: none; font: 500 13px/1 var(--font-text); color: var(--ink-3); opacity: 0; transition: opacity .2s; }
.ct-row:hover .ct-hint, .ct-row:focus-visible .ct-hint, .ct-hint.show { opacity: 1; }
.ct-ok { min-height: 20px; margin-top: 10px; font-size: 14px; color: var(--ink-2); }
.ft { background: var(--ink); color: #fff; padding: clamp(28px, 3.5vw, 40px) var(--gutter); }
.ft :focus-visible { outline-color: #fff; }
.ft-row { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px 32px; }
.ft-c { font-size: 13px; color: rgba(255,255,255,.6); }
.ft-n { font: 600 18px/1.2 var(--font-display); }
.ft-d { margin-top: 4px; font-size: 14px; line-height: 1.4; color: rgba(255,255,255,.7); }
.ct-send { margin-top: 24px; }
.ct-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(40px, 6vw, 88px); align-items: start; }
.ct-r .ct-rows { margin-top: 0; }
@media (max-width: 899px) { .ct-grid { grid-template-columns: 1fr; } .ct-r .ct-rows { margin-top: 32px; } }

@media (max-width: 767px) { .ft-row { flex-direction: column; align-items: flex-start; } }

/* ---------- Home phone rules for nav and diagrams ---------- */
@media (max-width: 1023px) { .nav-r a.l { display: none; } }
@media (max-width: 639px) {
  .dg { padding: 20px; min-height: 340px; }
  .est-cols { grid-template-columns: 1fr; }
  .est-tiles { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .est-fig { grid-template-columns: 1fr; }
  .rfq { min-width: 0; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); grid-template-rows: none; column-gap: 28px; }
  .rq-lab.r { grid-column: 1; grid-row: 1; padding-bottom: 12px; }
  .rq-lab.q { grid-column: 2; grid-row: 5; align-self: end; padding-bottom: 12px; }
  .rq-cell { flex-direction: column; padding: 0 0 12px; }
  .rq-cell.r { grid-column: 1; grid-row: calc(var(--c) + 1); }
  .rq-cell.q { grid-column: 2; grid-row: calc(var(--c) + 5); }
  .rq-cell.side.r { grid-column: 1; grid-row: 8; }
  .rq-cell.side.q { grid-column: 2; grid-row: calc(11 + var(--s)); }
  .rq-cell:not(.last):not(.side)::after { right: auto; left: 50%; top: auto; bottom: 0; width: 1.5px; height: 12px; transform: translateX(-.75px); }
  .rq-cell.side::before { display: none; }
  .rq-cell.side .chip2 { margin-top: 0; }
  .rq-ln, .rq-ln-lab { display: none; }
  .rq-tagw { position: static; transform: none; margin-top: 8px; }
  .rq-tag { white-space: normal; }
  .rq-ret { grid-column: 2; grid-row: 15; margin: 2px 0 0; border: 0; border-radius: 0; }
  .rq-ret::before { display: none; }
  .rq-ret span { position: static; transform: none; padding: 0; background: none; white-space: normal; }
  .rq-hand { display: block; grid-column: 1 / 3; grid-row: 6; align-self: center; justify-self: center; width: 28px; height: 1.5px; background: var(--teal); position: relative; margin-bottom: 12px; }
  .rq-hand::after { content: ""; position: absolute; right: 0; top: -4.25px; border: 5px solid transparent; border-left: 7px solid var(--teal); border-right: 0; }
  .rq-hlab { display: flex; align-items: center; gap: 7px; grid-column: 2; grid-row: 4; align-self: end; margin-bottom: 8px; font: 500 13px/1.25 var(--font-text); color: var(--ink-2); }
  .rq-hlab::before { content: ""; flex: none; width: 6px; height: 6px; border-radius: 50%; background: var(--teal); }
  .dc-strip { grid-template-columns: 1fr; justify-items: stretch; row-gap: 0; }
  .dc-ln { width: 1.5px; height: 16px; justify-self: center; transform-origin: top center; }
  .dc-gr { justify-self: center; }
  .dc-list .l1 { padding-left: 26px; }
  .dc-list .l2 { padding-left: 38px; }
  .dc-nm .nm-x i { min-width: 0; }
  .cl { grid-template-columns: 1fr; gap: 24px; }
  .cl-p.ar.rt::after { right: auto; top: auto; left: 50%; bottom: -17px; transform: translateX(-50%) rotate(135deg); }
  .ro-g { grid-template-columns: minmax(64px, 84px) repeat(5, minmax(0, 1fr)); gap: 6px; }
  .ro-h .f { display: none; }
  .ro-c { min-height: 36px; }
  .ro-c > b { font-size: 0; }
  .ro-gc { min-height: 36px; }
  .ro-gc em { display: none; }
}

/* =====================================================================
   CASE PAGE COMPONENTS (same tokens and patterns as home)
   ===================================================================== */
.skip { position: absolute; left: 12px; top: -48px; z-index: 60; padding: 10px 16px; border-radius: 999px; background: var(--navy); color: #fff; font: 500 14px/1 var(--font-text); }
.skip:focus { top: 8px; }
.nav-r a.l.is-active { color: var(--ink); }
.csec { padding: clamp(52px, 6vw, 80px) var(--gutter) 0; scroll-margin-top: var(--nav-h); }
.csec-h { margin-bottom: clamp(28px, 3.5vw, 44px); }
.h2s { font: 600 clamp(27px, 3vw, 40px)/1.12 var(--font-display); letter-spacing: -.025em; color: var(--ink); text-wrap: balance; }
.csec-h .lead { margin-top: 16px; }
.pend { display: inline-flex; align-items: center; gap: 8px; height: 32px; padding: 0 14px; border-radius: 999px; background: rgba(11,27,46,.06); font: 500 14px/1 var(--font-text); color: var(--ink-2); white-space: nowrap; }

/* Glyphs: custom 24px line set, 1.5px stroke. Each shape carries pathLength=1 so stroke-dashoffset draws it on. */
.gl { width: 24px; height: 24px; flex: none; fill: none; stroke: var(--navy); stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.gl * { stroke-dasharray: 1; stroke-dashoffset: 0; }
.js:not(.rm):not(.fallback):not(.rv-off) [data-gl]:not(.gl-on) .gl { opacity: 0; }
.js:not(.rm):not(.fallback):not(.rv-off) [data-seq] { opacity: 0; }

/* Case header */
.case-h { position: relative; padding: calc(var(--nav-h) + clamp(24px, 3.5vw, 44px)) var(--gutter) 0; }
.case-h::before { content: ""; position: absolute; left: 0; right: 0; top: var(--nav-h); height: 4px; background: var(--sc); }
.back { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; margin-bottom: 20px; font: 500 14px/1 var(--font-text); color: var(--ink-2); transition: color .25s; }
.back:hover { color: var(--ink); }
.case-h .eyebrow { display: flex; align-items: center; gap: 10px; margin-bottom: 18px; }
.case-h .eyebrow::before { content: ""; flex: none; width: 8px; height: 8px; border-radius: 50%; background: var(--sc); }
.c-h1 { font: 600 clamp(34px, 4.3vw, 56px)/1.1 var(--font-display); letter-spacing: -.03em; text-wrap: balance; max-width: 20ch; margin: 0; }
.c-prob { margin-top: 20px; font-size: clamp(19px, 1.8vw, 22px); line-height: 1.45; color: var(--ink-2); max-width: 46ch; text-wrap: pretty; }
.c-meta { margin-top: 28px; display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.c-photo { display: block; width: 100%; height: auto; aspect-ratio: 21 / 8; object-fit: cover; object-position: center; margin-top: clamp(32px, 4.5vw, 52px); border-radius: 20px; border: 1px solid var(--line); filter: saturate(.92) contrast(1.02); }
.c-photo + .glance { margin-top: 16px; }
.glance { margin-top: clamp(32px, 4.5vw, 52px); display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.gt { display: flex; align-items: center; gap: 16px; padding: 20px; border-radius: 16px; min-width: 0; }
.gt-i { flex: none; width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center; background: var(--st); }
.gt-i .gl { stroke: var(--si); }
.gt-l { display: block; font: 600 12px/1 var(--font-display); letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); }
.gt-v { display: block; margin-top: 8px; font: 600 19px/1.2 var(--font-display); color: var(--ink); }
.gt-s { display: block; margin-top: 4px; font-size: 13px; line-height: 1.3; color: var(--ink-3); }

/* Diagram section */
.csec.first { padding-top: clamp(40px, 5vw, 64px); }
.csec .dg { padding: clamp(20px, 2.4vw, 32px); min-height: 0; }
.dg-cap { margin-top: 18px; max-width: 78ch; font-size: 15px; line-height: 1.55; color: var(--ink-2); text-wrap: pretty; }
.xt { margin-top: clamp(28px, 3.5vw, 44px); }
.xt-grid { display: grid; grid-template-columns: 7fr 5fr; gap: 24px; }
.xt .lab { margin-bottom: 16px; }
.caps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.cap, .ent, .mdl { display: flex; align-items: center; gap: 12px; padding: 14px 16px; border-radius: 14px; background: var(--card); border: 1px solid var(--line); box-shadow: 0 1px 2px rgba(11,27,46,.05); font: 500 15px/1.25 var(--font-text); }
.ents { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.ent { padding: 18px 20px; }
.mdls { display: grid; gap: 12px; }
.mdl { align-items: flex-start; flex-direction: column; gap: 6px; padding: 18px 20px; }
.mdl b { font: 600 16px/1.25 var(--font-display); }
.mdl span { font-size: 14px; line-height: 1.45; color: var(--ink-2); }
.gates { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; }
.gate { position: relative; padding: 0 16px 0 0; }
.gate .gk { position: relative; width: 22px; height: 22px; border-radius: 50%; background: var(--teal); margin-bottom: 14px; z-index: 1; }
.gate .gk::after { content: ""; position: absolute; left: 7.5px; top: 4.5px; width: 5px; height: 9px; border-right: 1.75px solid #fff; border-bottom: 1.75px solid #fff; transform: rotate(40deg); }
.gate::before { content: ""; position: absolute; left: 22px; right: 0; top: 10.25px; height: 1.5px; background: var(--wire); }
.gate:last-child::before { display: none; }
.gates:has(.gate:only-child) { grid-template-columns: 1fr; }
.gate b { display: block; font: 600 16px/1.25 var(--font-display); }
.gate span { display: block; margin-top: 4px; font-size: 14px; line-height: 1.45; color: var(--ink-2); }

/* Stakeholder map */
.sm { position: relative; height: clamp(420px, 42vw, 500px); }
.sm-svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; pointer-events: none; }
.sm-svg path { fill: none; stroke: var(--wire); stroke-width: 1.2; stroke-linecap: round; transition: stroke .25s; }
.sm-svg path.on { stroke: var(--teal); }
.sm-core { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); z-index: 2; }
.sm-core-i { display: block; padding: 18px 30px; border-radius: 999px; background: var(--card); border: 1.5px solid var(--navy); box-shadow: var(--shadow); font: 600 18px/1 var(--font-display); white-space: nowrap; }
.sm-pos { position: absolute; left: var(--x); top: var(--y); transform: translate(-50%, -50%); z-index: 2; }
.sm-chip { display: flex; align-items: center; gap: 10px; padding: 8px 18px 8px 8px; border-radius: 999px; background: var(--card); border: 1px solid var(--line); box-shadow: var(--shadow); font: 500 14px/1.1 var(--font-text); color: var(--ink); white-space: nowrap; cursor: pointer; transition: box-shadow .35s ease, border-color .25s, transform .35s cubic-bezier(.2,.7,.2,1); }
.sm-chip:hover, .sm-chip.on { box-shadow: var(--shadow-up); border-color: rgba(14,124,116,.45); }
.ini { width: 28px; height: 28px; border-radius: 50%; flex: none; display: grid; place-items: center; background: rgba(11,27,46,.07); color: var(--ink); font: 600 10px/1 var(--font-display); letter-spacing: .03em; }
.sm-chip.on .ini { background: var(--teal-wash); color: var(--teal); }
.sm-cap { margin-top: 14px; min-height: 3.2em; display: flex; align-items: flex-start; justify-content: center; gap: 10px; text-align: center; font-size: 16px; line-height: 1.5; color: var(--ink-2); }
.sm-cap.set::before { content: ""; flex: none; width: 6px; height: 6px; margin-top: .6em; border-radius: 50%; background: var(--teal); }
.js:not(.rm):not(.fallback):not(.rv-off) .sm:not(.sm-on) .sm-chip, .js:not(.rm):not(.fallback):not(.rv-off) .sm:not(.sm-on) .sm-core-i { opacity: 0; }

/* The decisions: the heart of the page, so the most room */
.csec.dsec { margin-top: clamp(64px, 8vw, 112px); padding-top: clamp(64px, 8vw, 112px); padding-bottom: clamp(64px, 8vw, 112px); background: var(--band); }
.dsec .h2 { max-width: 18ch; }
.dsec .sec-h { margin-bottom: clamp(36px, 4.5vw, 56px); }
.dl { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.dl > li:last-child:nth-child(odd) { grid-column: 1 / -1; }
.dcard { height: 100%; display: flex; flex-direction: column; padding: clamp(22px, 2.5vw, 32px); border-radius: 16px; background: var(--card); border: 1px solid var(--line); box-shadow: none; transition: transform .4s cubic-bezier(.2,.7,.2,1), box-shadow .4s ease; }
.dcard:hover { transform: translateY(-2px); box-shadow: var(--shadow-up); }
.d-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 4px; }
.d-top .lab { margin-bottom: 12px; }
.d-n { font: 600 13px/1 var(--font-display); letter-spacing: .08em; color: var(--ink-3); margin-bottom: 12px; }
.d-t { font: 500 18px/1.5 var(--font-display); color: var(--ink); text-wrap: pretty; max-width: 62ch; }
.d-x { margin-top: auto; padding-top: 24px; }
.d-x > div { padding-top: 16px; border-top: 1px solid var(--line); }
.d-x .lab { margin-bottom: 6px; font-size: 12px; }
.d-x p { font-size: 16px; line-height: 1.5; color: var(--ink-2); text-wrap: pretty; max-width: 62ch; }

/* Delivery phase strip */
.ph { position: relative; padding-top: 34px; }
.ph-line, .ph-fill { position: absolute; top: 5px; left: 0; right: 0; height: 1.5px; }
.ph-line { background: var(--wire); }
.ph-fill { background: var(--si); transform-origin: left center; }
.ph-ol { display: grid; grid-template-columns: repeat(var(--n), minmax(0, 1fr)); gap: 0 24px; }
.ph-li { position: relative; min-width: 0; }
.ph-d { position: absolute; left: 0; top: -34px; width: 11px; height: 11px; border-radius: 50%; box-sizing: border-box; background: var(--paper); border: 1.5px solid var(--wire); }
.ph-d b { position: absolute; inset: -1.5px; border-radius: inherit; background: var(--si); }
.ph-li.mk .ph-d { width: 13px; height: 13px; top: -35px; border-radius: 3px; transform: rotate(45deg); }
.ph-t { font: 600 18px/1.2 var(--font-display); color: var(--ink); }
.ph-a { margin-top: 10px; display: grid; gap: 8px; }
.ph-a li { font-size: 14.5px; line-height: 1.45; color: var(--ink-2); text-wrap: pretty; }
.ms { display: inline-flex; align-items: center; gap: 8px; margin-top: 12px; padding: 5px 11px; border-radius: 999px; background: var(--card); border: 1px solid rgba(14,124,116,.32); font: 500 13px/1.2 var(--font-text); color: var(--ink); }
.ms::before { content: ""; width: 6px; height: 6px; border-radius: 1px; background: var(--teal); transform: rotate(45deg); }
.js:not(.rm):not(.fallback):not(.rv-off) .ph:not(.ph-on) .ph-fill { transform: scaleX(0); }
.js:not(.rm):not(.fallback):not(.rv-off) .ph:not(.ph-on) .ph-d b, .js:not(.rm):not(.fallback):not(.rv-off) .ph:not(.ph-on) .ph-c { opacity: 0; }

/* Outcome and evidence */
.out { display: grid; grid-template-columns: 7fr 5fr; gap: clamp(32px, 5vw, 72px); align-items: start; }
.out-big { font: 500 clamp(28px, 3.5vw, 46px)/1.18 var(--font-display); letter-spacing: -.028em; color: var(--ink); text-wrap: balance; }
.ev { padding: clamp(22px, 2.4vw, 32px); }
.ev h3 { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.ev .lab { margin-bottom: 14px; }
.ev ul + .lab { margin-top: 28px; }
.ev li { position: relative; padding-left: 28px; font-size: 15px; line-height: 1.5; color: var(--ink-2); }
.ev li + li { margin-top: 10px; }
.ev-ok li::before { content: ""; position: absolute; left: 0; top: 2px; width: 16px; height: 16px; border-radius: 50%; background: var(--teal); }
.ev-ok li::after { content: ""; position: absolute; left: 5.5px; top: 5px; width: 4px; height: 7px; border-right: 1.75px solid #fff; border-bottom: 1.75px solid #fff; transform: rotate(40deg); }
.ev-p li::before { content: ""; position: absolute; left: 3px; top: 7px; width: 10px; height: 10px; border-radius: 50%; box-sizing: border-box; border: 1.5px solid var(--ink-3); }
.ev-chip { margin-bottom: 14px; }

/* AI reimagined: neutral, dashed, never teal */
.ai-p { padding: clamp(24px, 3vw, 40px); border: 1px dashed var(--wire); border-radius: 20px; }
.ai-top { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 20px; }
.ai-name { margin: 12px 0 28px; font: 500 20px/1.3 var(--font-display); letter-spacing: -.01em; color: var(--ink-2); }
.ai-flow { display: grid; grid-template-columns: minmax(0, 1fr) 40px minmax(0, .8fr) 40px minmax(0, 1fr); align-items: stretch; }
.ai-col { display: flex; flex-direction: column; gap: 4px; padding: 20px; border-radius: 14px; background: var(--card); border: 1px solid var(--line); }
.ai-col.core { border-style: dashed; border-color: var(--wire); background: rgba(11,27,46,.025); }
.ai-i { display: grid; place-items: center; width: 44px; height: 44px; margin-bottom: 10px; border-radius: 50%; background: rgba(29,63,110,.07); }
.ai-col .lab { margin-bottom: 6px; }
.ai-chips { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; }
.ch { padding: 7px 10px; border-radius: 10px; background: rgba(11,27,46,.04); border: 1px solid var(--line); font: 500 13px/1.25 var(--font-text); color: var(--ink); }
.ai-col.core { align-items: center; text-align: center; justify-content: center; }
.ai-col.core .lab { margin-bottom: 4px; }
.ai-col.core p { font-size: 14px; font-weight: 500; }
.ai-col p { font-size: 14.5px; line-height: 1.5; color: var(--ink-2); }
.ai-ar { align-self: center; position: relative; height: 1.5px; background: var(--wire); }
.ai-ar::after { content: ""; position: absolute; right: 0; top: -3.25px; width: 8px; height: 8px; border-top: 1.5px solid var(--ink-3); border-right: 1.5px solid var(--ink-3); transform: translateX(-1px) rotate(45deg); background: none; }
.ai-ctl { margin-top: 16px; display: flex; align-items: flex-start; gap: 16px; padding: 18px 20px; border-radius: 14px; border: 1px dashed var(--wire); background: rgba(11,27,46,.025); }
.ai-ctl .lab { margin-bottom: 4px; }
.ai-ctl p { font-size: 14.5px; line-height: 1.5; color: var(--ink-2); }
.ai-ul { margin-top: 28px; display: grid; gap: 10px; }
.ai-ul li { position: relative; padding-left: 16px; font-size: 15px; line-height: 1.5; color: var(--ink-2); max-width: 70ch; }
.ai-ul li::before { content: ""; position: absolute; left: 0; top: .6em; width: 4px; height: 4px; border-radius: 50%; background: var(--ink-3); }
.js:not(.rm):not(.fallback):not(.rv-off) .ai-flow:not(.ai-on) .ai-ar { opacity: 0; }

/* Full detail */
.fd { border-top: 1px solid var(--line); }
.fd:last-child { border-bottom: 1px solid var(--line); }
.fd summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; padding: 14px 4px; cursor: pointer; list-style: none; font: 600 20px/1.3 var(--font-display); letter-spacing: -.01em; border-radius: 10px; }
.fd summary::-webkit-details-marker { display: none; }
.fd summary::after { content: ""; flex: none; width: 9px; height: 9px; border-right: 1.5px solid var(--ink-3); border-bottom: 1.5px solid var(--ink-3); transform: rotate(45deg) translate(-2px, -2px); transition: transform .3s ease; }
.fd[open] summary::after { transform: rotate(225deg) translate(-2px, -2px); }
.fd-b { padding: 0 4px 28px; max-width: 70ch; display: grid; gap: 12px; }
.fd-b p, .fd-b li { font-size: 16px; line-height: 1.6; color: var(--ink-2); text-wrap: pretty; }
.fd-b ul { display: grid; gap: 10px; }
.fd-b li { position: relative; padding-left: 18px; }
.fd-b li::before { content: ""; position: absolute; left: 0; top: .7em; width: 4px; height: 4px; border-radius: 50%; background: var(--ink-3); }

/* Next case */
.next-sec { padding-bottom: clamp(64px, 8vw, 112px); }
.nx { position: relative; overflow: hidden; display: grid; grid-template-columns: 1fr minmax(260px, 380px); gap: clamp(24px, 4vw, 56px); align-items: center; padding: clamp(24px, 3.4vw, 44px); transition: transform .4s cubic-bezier(.2,.7,.2,1), box-shadow .4s ease; }
.nx::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 4px; background: var(--sc); }
.nx:hover { transform: translateY(-2px); box-shadow: var(--shadow-up); }
.nx .eyebrow { margin-bottom: 14px; }
.nx-s { display: flex; align-items: center; gap: 8px; font: 600 13px/1.3 var(--font-display); letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); }
.nx-s::before { content: ""; flex: none; width: 8px; height: 8px; border-radius: 50%; background: var(--sc); }
.cnt { font-variant-numeric: tabular-nums; }
.nx-t { margin: 10px 0 24px; font: 600 clamp(28px, 3.2vw, 44px)/1.08 var(--font-display); letter-spacing: -.028em; text-wrap: balance; }
.nx .tlink { display: inline-block; }
.nx:hover .tlink { border-bottom-color: var(--ink); }
.nx-img { display: block; width: 100%; aspect-ratio: 3 / 2; object-fit: cover; border-radius: 14px; border: 1px solid var(--line); filter: saturate(.92) contrast(1.02); }

/* ---------- Tablet ---------- */
@media (max-width: 1023px) {
  .c-photo { aspect-ratio: 16 / 9; }
  .glance { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .xt-grid, .out { grid-template-columns: 1fr; }
  .dl { grid-template-columns: 1fr; }
  .ai-flow { grid-template-columns: 1fr; row-gap: 0; }
  .ai-ar { width: 1.5px; height: 28px; justify-self: center; }
  .ai-ar::after { right: auto; top: auto; left: -3.25px; bottom: 0; transform: translateY(-1px) rotate(135deg); }
  .nx { grid-template-columns: 1fr; }
  .sm { height: auto; display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
  .sm-svg { display: none; }
  .sm-core { position: static; transform: none; flex: 0 0 100%; display: flex; justify-content: center; margin-bottom: 8px; }
  .sm-pos { position: static; transform: none; }
  .ph { padding: 0 0 0 36px; }
  .ph-ol { grid-template-columns: 1fr; }
  .ph-line, .ph-fill { top: 6px; bottom: 6px; left: 5px; right: auto; width: 1.5px; height: auto; transform-origin: top center; }
  .ph-li { padding-bottom: 28px; }
  .ph-li:last-child { padding-bottom: 0; }
  .ph-d { left: -36px; top: 4px; }
  .ph-li.mk .ph-d { top: 3px; left: -37px; }
  .js:not(.rm):not(.fallback):not(.rv-off) .ph:not(.ph-on) .ph-fill { transform: scaleY(0); }
}
/* ---------- Phones ---------- */
@media (max-width: 639px) {
  .case-h { padding-bottom: 0; }
  .glance { gap: 12px; }
  .gt { flex-direction: column; align-items: flex-start; gap: 12px; padding: 16px; }
  .gt-v { font-size: 17px; }
  .caps, .ents { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cap, .ent { padding: 12px; gap: 10px; font-size: 14px; }
  .gates { grid-template-columns: 1fr; }
  .gate { padding: 0 0 20px 38px; }
  .gate .gk { position: absolute; left: 0; top: 0; margin: 0; }
  .gate::before { left: 10.25px; right: auto; top: 22px; bottom: 0; width: 1.5px; height: auto; }
  .sm-chip { font-size: 13px; padding-right: 14px; }
  .nx-t { font-size: 28px; }
  .ini { width: 32px; height: 32px; font-size: 12px; }
  .c-h1, .h2, .h2s, .ct-h, .nx-t { line-height: 1.1; }
  .pill, .rp { height: 44px; }
  .nav-name { min-height: 44px; }
  .skip { padding: 15px 16px; }
  .dg-t, .rq-lab, .gt-l { line-height: 1.35; }   /* these labels can wrap on phones */
  .dc-tg { padding: 0 3px; background: none; }   /* buttons are 44px tall; the 36px grey track and 30px active pill are drawn inside them */
  .dc-tg::before { content: ""; position: absolute; inset: 4px 0; border-radius: 10px; background: rgba(11,27,46,.07); }
  .dc-ind { top: 7px; bottom: 7px; }
  .dc-tg button { height: 44px; padding: 0 8px; }
}
/* Tablets and phones: eyebrows and labels that can wrap get a 1.35 line-height; each margin gives back what the taller line adds */
@media (max-width: 1023px) {
  .eyebrow, .lab { line-height: 1.35; }
  .eyebrow { margin-bottom: 19.5px; }
  .lab { margin-bottom: 10px; }
  .case-h .eyebrow { margin-bottom: 13.5px; }
  .nx .eyebrow { margin-bottom: 9.5px; }
  .cl-p .lab { margin-bottom: 8px; }
  .xt .lab { margin-bottom: 14px; }
  .d-top .lab { margin-bottom: 10px; }
  .d-x .lab { margin-bottom: 4px; }
  .ev .lab { margin-bottom: 12px; }
  .ai-col .lab { margin-bottom: 4px; }
  .ai-col.core .lab { margin-bottom: 2px; }
  .ai-ctl .lab { margin-bottom: 2px; }
}
@media (prefers-reduced-motion: reduce) {
  .fd summary::after, .dcard, .nx, .sm-chip { transition: none; }
}

/* Evidence panels may contain long status labels; constrain their intrinsic grid size. */
.out { grid-template-columns:minmax(0,7fr) minmax(0,5fr); }
.out > *, .ev-chip { min-width:0; }
.ev-chip .pend, .c-meta .pend { max-width:100%; height:auto; min-height:32px; padding-block:8px; line-height:1.35; white-space:normal; overflow-wrap:anywhere; }
@media(max-width:1023px) { .out { grid-template-columns:minmax(0,1fr); } }

/* Match the homepage's type, surface and spacing discipline. */
::selection { background:var(--teal-100); color:var(--ink); }
.c-prob + .c-prob { margin-top:14px; font-size:16px; line-height:1.55; max-width:70ch; }
.c-meta { margin-top:22px; }
.c-photo { border-radius:16px; }
.csec-h { margin-bottom:clamp(24px,3vw,36px); }
.gt { box-shadow:none; }
.gt-v { font-size:17px; line-height:1.3; }
.ev { box-shadow:none; border-radius:16px; }
.out-big { font-size:clamp(26px,3vw,40px); line-height:1.22; }
@media(prefers-reduced-motion:reduce) { .back { transition:none; } }

/* Narrow contact rows stay inside the content gutter, with their 64px tap height. */
.ct-grid > * { min-width:0; }
@media(max-width:639px) { .ct-grid { grid-template-columns:minmax(0,1fr); } .contact .ct-row { width:100%; margin-inline:0; padding-inline:0; gap:12px; } #ct-mail { white-space:normal; overflow-wrap:anywhere; } }

.contribution { padding-top:24px; border-top:1px solid var(--line); }
.contribution > ul { margin-top:20px; columns:2; column-gap:40px; }
.contribution > ul li { break-inside:avoid; position:relative; padding-left:18px; margin-bottom:12px; line-height:1.6; color:var(--ink-2); }
.contribution > ul li::before { content:""; position:absolute; left:0; top:.65em; width:5px; height:5px; border-radius:50%; background:var(--teal); }
@media(max-width:767px) { .contribution > ul { columns:1; } }

/* Final role and platform names must fit the same narrow-screen components. */
.c-meta .tag { max-width:100%; height:auto; min-height:32px; padding-block:8px; line-height:1.35; white-space:normal; overflow-wrap:anywhere; }
.gt > div { min-width:0; max-width:100%; }
.gt-l, .gt-v { overflow-wrap:anywhere; }

/* Compact chapter rhythm matches home; diagram/touch-control behavior is unchanged. */
.csec { padding-top:clamp(36px,4.5vw,64px); }
.csec.first { padding-top:clamp(28px,3.5vw,48px); }
.csec-h { margin-bottom:clamp(20px,2.2vw,28px); }
.sec-h { margin-bottom:clamp(20px,2.5vw,32px); }
.csec-h .lead { margin-top:12px; }
.c-photo { margin-top:clamp(24px,3vw,40px); }
.back { margin-bottom:16px; }
.dcard { padding:clamp(20px,2vw,28px); }
.xt { margin-top:24px; }
.ai-ul { margin-top:20px; }
.contact { padding:clamp(40px,5vw,72px) var(--gutter) clamp(32px,4vw,48px); }
@media(min-width:1024px) { .sm { height:clamp(380px,34vw,440px); } }