/* ============================================================
   Cogniron — Company / About  ·  "The Cognition Thread"
   Elevated 2026 layer over homepage.css (System A "Steel").
   One continuous accent thread traces 2018 → 2026:
   chapter rail · count-up proof · scroll-lit journey · flowing
   evolution · connected build spine · kinetic entrances.
   Atoms, type, nav, buttons inherited from homepage.css.
   ============================================================ */

/* ── Textures: faint grain + dotted grid for dark bands ───── */
.band-dark { position: relative; }
.band-dark::after {
  content: ""; position: absolute; inset: 0; pointer-events: none; z-index: 0;
  background-image: radial-gradient(circle at center, rgba(255,255,255,0.04) 1px, transparent 1.4px);
  background-size: 26px 26px; opacity: 0.5; mask-image: radial-gradient(ellipse 90% 80% at 50% 40%, #000 30%, transparent 78%);
}
.band-dark > .wrap { position: relative; z-index: 1; }

/* ── Kinetic entrance (hero, fires on load) ───────────────── */
@keyframes coRise { from { opacity: 0; transform: translateY(22px); filter: blur(6px); } to { opacity: 1; transform: none; filter: none; } }
@keyframes coDrawW { from { transform: skewX(-20deg) scaleX(0); } to { transform: skewX(-20deg) scaleX(1); } }
.js-reveal .co-anim { opacity: 0; animation: coRise 0.86s cubic-bezier(0.22,1,0.36,1) forwards; }
.js-reveal .co-anim.a1 { animation-delay: 0.06s; }
.js-reveal .co-anim.a2 { animation-delay: 0.16s; }
.js-reveal .co-anim.a3 { animation-delay: 0.28s; }
.js-reveal .co-anim.a4 { animation-delay: 0.40s; }
.js-reveal .co-anim.a5 { animation-delay: 0.52s; }

/* Blur-rise upgrade to the shared .reveal atom */
.js-reveal .reveal { filter: blur(5px); transition: opacity 620ms cubic-bezier(0.22,1,0.36,1), transform 620ms cubic-bezier(0.22,1,0.36,1), filter 620ms cubic-bezier(0.22,1,0.36,1); }
.js-reveal .reveal.in { filter: none; }

/* ── Chapter rail (sticky, right edge — editorial wayfinding) ─ */
.chapter-rail {
  position: fixed; right: 34px; top: 50%; transform: translateY(-50%);
  z-index: 40; display: none; flex-direction: column; gap: 2px;
}
.chapter-rail a {
  display: flex; align-items: center; gap: 12px; justify-content: flex-end;
  text-decoration: none; padding: 7px 0; position: relative;
}
.chapter-rail .cr-lbl {
  font-family: var(--font-sans); font-size: 13px; font-weight: 500; letter-spacing: -0.005em;
  color: var(--text-primary); opacity: 0; transform: translateX(8px);
  transition: opacity 240ms ease, transform 240ms cubic-bezier(.22,1,.36,1); white-space: nowrap;
}
.chapter-rail .cr-num {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.08em; color: var(--text-tertiary);
  opacity: 0; transition: opacity 240ms ease, color 240ms ease; min-width: 16px; text-align: right;
}
.chapter-rail .cr-tick {
  width: 22px; height: 2px; border-radius: 2px; background: var(--border-default);
  transition: width 280ms cubic-bezier(.22,1,.36,1), background 240ms ease; flex-shrink: 0;
}
.chapter-rail a:hover .cr-lbl, .chapter-rail a.is-active .cr-lbl { opacity: 1; transform: none; }
.chapter-rail a:hover .cr-num, .chapter-rail a.is-active .cr-num { opacity: 1; }
.chapter-rail a:hover .cr-tick { width: 34px; background: var(--text-secondary); }
.chapter-rail a.is-active .cr-tick { width: 44px; background: var(--accent); }
.chapter-rail a.is-active .cr-num { color: var(--accent); }
@media (min-width: 1320px) { .chapter-rail { display: flex; } }

/* ── 1 · HERO ─────────────────────────────────────────────── */
.co-hero { padding: 92px 0 96px; position: relative; overflow: hidden; }
.co-hero::before {
  content: ""; position: absolute; left: 50%; top: -8%; width: 78%; height: 82%;
  transform: translateX(-50%);
  background: radial-gradient(ellipse 52% 60% at 50% 28%, var(--accent-glow), transparent 72%);
  filter: blur(24px); opacity: 0.5; pointer-events: none; z-index: 0;
}
.co-hero .wrap { position: relative; z-index: 1; }

/* Clean single-column hero — confident headline, one concise line. */
.co-hero-grid { display: grid; grid-template-columns: minmax(0,1.08fr) minmax(0,0.92fr); gap: 64px; align-items: center; }
.co-hero-lead { max-width: 620px; }
/* quiet brand mark — ascending "cognition" signature, no card, no data */
.co-hero-mark { position: relative; display: flex; flex-direction: column; align-items: flex-start; justify-content: center; gap: 28px; min-height: 360px; padding-left: 18px; }
.co-hero-mark .ghm-glow { position: absolute; left: 42%; top: 50%; width: 88%; aspect-ratio: 1; transform: translate(-50%,-50%); background: radial-gradient(circle, var(--accent-glow), transparent 68%); filter: blur(30px); opacity: 0.85; pointer-events: none; }
.ghm-bars { position: relative; z-index: 1; display: flex; flex-direction: column; align-items: flex-start; gap: 14px; }
.ghm-bars i { display: block; height: 17px; background: var(--accent); transform: skewX(-20deg); border-radius: 2px; transform-origin: left center; }
.js-reveal .ghm-bars i { animation: coDrawW 0.7s cubic-bezier(.22,1,.36,1) both; }
.ghm-bars i:nth-child(1) { width: 58px; opacity: 0.30; }
.ghm-bars i:nth-child(2) { width: 96px; opacity: 0.44; animation-delay: .06s; }
.ghm-bars i:nth-child(3) { width: 134px; opacity: 0.58; animation-delay: .12s; }
.ghm-bars i:nth-child(4) { width: 174px; opacity: 0.72; animation-delay: .18s; }
.ghm-bars i:nth-child(5) { width: 212px; opacity: 0.86; animation-delay: .24s; }
.ghm-bars i:nth-child(6) { width: 250px; opacity: 1; animation-delay: .30s; }
.ghm-cap { position: relative; z-index: 1; display: flex; align-items: center; gap: 11px; font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-tertiary); }
.ghm-cap .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); flex-shrink: 0; }
@media (max-width: 1040px) {
  .co-hero-mark { min-height: 0; padding-left: 0; margin-top: 8px; }
}
.co-hero .h1 { margin-top: 22px; font-size: clamp(40px, 5.2vw, 70px); line-height: 0.99; letter-spacing: -0.032em; max-width: 15ch; }
.co-hero .h1 .em { color: var(--accent); }
.co-hero .co-sub { margin-top: 26px; font-size: 20px; line-height: 1.55; color: var(--text-secondary); max-width: 52ch; text-wrap: pretty; }
.co-hero .co-sub strong { color: var(--text-primary); font-weight: 600; }
.co-hero .hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; }
.co-principles { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; margin-top: 42px; padding-top: 24px; border-top: 1px solid var(--border-subtle); max-width: 620px; }
.co-principles .cp-est { font-family: var(--font-mono); font-size: 11px; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); }
.co-principles .cp-sep { width: 26px; height: 5px; background: var(--accent); transform: skewX(-20deg); border-radius: 1px; }
.co-principles .cp-item { font-size: 15px; font-weight: 600; letter-spacing: -0.008em; color: var(--text-primary); }
.co-principles .cp-dot { color: var(--text-tertiary); }
@media (max-width: 680px) { .co-hero .h1 { max-width: 18ch; } }

/* scroll cue */
.co-cue { position: absolute; left: var(--pad); bottom: 22px; z-index: 1; display: inline-flex; align-items: center; gap: 10px; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-tertiary); }
.co-cue .cue-line { width: 1px; height: 26px; background: linear-gradient(var(--accent), transparent); position: relative; overflow: hidden; }
.co-cue .cue-line::after { content: ""; position: absolute; top: -10px; left: 0; width: 1px; height: 10px; background: var(--accent); animation: cueRun 1.8s ease-in-out infinite; }
@keyframes cueRun { 0% { top: -10px; } 60%,100% { top: 26px; } }

/* ── 2 · TRUST METRICS (count-up) ─────────────────────────── */
.metrics-band { background: var(--bg-subtle); border-top: 1px solid var(--border-subtle); border-bottom: 1px solid var(--border-subtle); padding: 60px 0; }
.metrics-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.metric { position: relative; padding: 6px 34px; }
.metric + .metric { border-left: 1px solid var(--border-subtle); }
.metric:first-child { padding-left: 0; }
.metric .m-kicker { font-family: var(--font-mono); font-size: 10.5px; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); }
.metric .m-num { margin-top: 12px; font-size: clamp(42px, 4.6vw, 60px); line-height: 0.96; font-weight: 500; letter-spacing: -0.035em; color: var(--text-primary); font-variant-numeric: tabular-nums; }
.metric .m-num em { font-style: normal; color: var(--accent); }
.metric .m-label { margin-top: 16px; font-size: 14.5px; line-height: 1.5; color: var(--text-secondary); max-width: 24ch; text-wrap: pretty; }
.metrics-note { margin-top: 40px; padding-top: 22px; border-top: 1px solid var(--border-subtle); font-family: var(--font-mono); font-size: 12.5px; line-height: 1.6; letter-spacing: 0.01em; color: var(--text-tertiary); max-width: 80ch; }

/* ── 3 · WHY COGNIRON EXISTS ──────────────────────────────── */
.why-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 80px; align-items: center; margin-top: 8px; }
.why-copy .h2 { max-width: 16ch; }
.why-copy p { margin-top: 22px; font-size: 17px; line-height: 1.65; color: var(--text-secondary); max-width: 48ch; text-wrap: pretty; }
.why-copy p strong { color: var(--text-primary); font-weight: 600; }
.why-copy p:first-of-type { margin-top: 28px; }

/* belief statement in the left copy */
.why-copy .why-belief { margin-top: 26px; padding-top: 24px; border-top: 1px solid var(--border-subtle); font-size: 19px; line-height: 1.46; font-weight: 500; letter-spacing: -0.012em; color: var(--text-primary); max-width: 46ch; }
.why-copy .why-belief em { font-style: normal; color: var(--accent); }

/* synthesis visual — four forces converge into Quality with Cognition */
.why-viz { position: relative; border: 1px solid var(--border-subtle); border-radius: 22px; background: linear-gradient(180deg, var(--bg-subtle), var(--bg-canvas)); padding: 24px 26px 20px; box-shadow: 0 40px 80px -50px rgba(17,19,46,0.26); overflow: hidden; }
.why-viz::after { content: ""; position: absolute; right: -10%; top: 6%; width: 52%; aspect-ratio: 1; background: radial-gradient(circle, var(--accent-glow), transparent 70%); filter: blur(28px); opacity: 0.7; pointer-events: none; }
.wv-head { position: relative; z-index: 1; display: flex; align-items: baseline; justify-content: space-between; gap: 16px; padding-bottom: 16px; border-bottom: 1px solid var(--border-subtle); }
.wv-k { font-family: var(--font-mono); font-size: 11px; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); }
.wv-m { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-tertiary); }
.wv-svg { position: relative; z-index: 1; width: 100%; height: auto; display: block; margin-top: 10px; overflow: visible; }
.wv-pill { fill: var(--bg-canvas); stroke: var(--border-default); stroke-width: 1.25; }
.wv-pill-t { fill: var(--text-primary); font-family: var(--font-sans); font-size: 14px; font-weight: 600; letter-spacing: -0.01em; text-anchor: middle; }
.wv-flow { fill: none; stroke: var(--accent); stroke-width: 1.6; opacity: 0.5; stroke-linecap: round; stroke-dasharray: 3 8; }
.js-reveal .wv-flow { animation: wvFlow 7s linear infinite; }
@keyframes wvFlow { to { stroke-dashoffset: -220; } }
.wv-halo { fill: var(--accent); opacity: 0.16; }
.wv-hub { fill: var(--bg-inverted); stroke: var(--bg-canvas); stroke-width: 5; }
.wv-hub-t1 { fill: rgba(255,255,255,0.62); font-family: var(--font-mono); font-size: 9.5px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; text-anchor: middle; }
.wv-hub-t2 { fill: #fff; font-family: var(--font-sans); font-size: 16px; font-weight: 600; letter-spacing: -0.012em; text-anchor: middle; }
.wv-cap { position: relative; z-index: 1; margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--border-subtle); font-size: 13.5px; line-height: 1.55; color: var(--text-secondary); text-wrap: pretty; }
.wv-cap strong { color: var(--text-primary); font-weight: 600; }
@media (prefers-reduced-motion: reduce) { .js-reveal .wv-flow { animation: none; } }

/* ── 4 · ORIGIN STORY (soft band) ─────────────────────────── */
.origin { background: var(--bg-subtle); }
.origin-inner { display: grid; grid-template-columns: auto 1fr; gap: 64px; align-items: start; max-width: 1100px; }
.origin-rail { font-family: var(--font-mono); font-size: 12px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); padding-top: 14px; white-space: nowrap; }
.origin-rail .or-sub { display: block; margin-top: 8px; color: var(--text-tertiary); font-weight: 500; }
.origin-body .h2 { max-width: 20ch; }
.origin-body .lead-stmt { margin-top: 26px; font-size: clamp(22px, 2.4vw, 31px); line-height: 1.3; font-weight: 500; letter-spacing: -0.018em; color: var(--text-primary); text-wrap: pretty; max-width: 32ch; }
.origin-body .lead-stmt em { font-style: normal; color: var(--accent); }
.origin-body p { margin-top: 22px; font-size: 17px; line-height: 1.65; color: var(--text-secondary); max-width: 56ch; text-wrap: pretty; }

/* ── 5 · COGNIRON ↔ COGNITURING (flowing centerpiece) ─────── */
.evo-grid { display: grid; grid-template-columns: 1fr auto 1fr; gap: 0; align-items: stretch; margin-top: 64px; }
.evo-card { position: relative; border: 1px solid var(--border-subtle); border-radius: 22px; background: var(--bg-canvas); padding: 40px 38px 36px; display: flex; flex-direction: column; transition: border-color 260ms ease, box-shadow 260ms ease, transform 260ms cubic-bezier(.22,1,.36,1); }
.evo-card:hover { border-color: color-mix(in srgb, var(--accent) 45%, var(--border-subtle)); box-shadow: 0 34px 64px -44px rgba(17,19,46,0.34); transform: translateY(-3px); }
.evo-card .evo-tag { display: inline-flex; align-items: center; gap: 8px; align-self: flex-start; font-family: var(--font-mono); font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; color: var(--accent); border: 1px solid var(--border-default); padding: 5px 12px; border-radius: 999px; }
.evo-card .evo-yr { position: absolute; top: 30px; right: 34px; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em; color: var(--text-tertiary); }
.evo-card h3 { margin-top: 22px; font-size: 31px; line-height: 1.06; font-weight: 500; letter-spacing: -0.022em; color: var(--text-primary); }
.evo-card p { margin-top: 16px; font-size: 15.5px; line-height: 1.62; color: var(--text-secondary); text-wrap: pretty; }
.evo-card p + p { margin-top: 14px; }
/* The destination card — elevated, dark, "ahead" */
.evo-card.is-next { background: var(--bg-inverted); transform: translateY(-10px); box-shadow: 0 44px 80px -46px rgba(17,19,46,0.5); overflow: hidden; }
.evo-card.is-next::before { content: ""; position: absolute; right: -28%; top: -30%; width: 70%; aspect-ratio: 1; background: radial-gradient(circle, rgba(129,140,248,0.3), transparent 70%); filter: blur(22px); pointer-events: none; }
.evo-card.is-next .evo-tag { color: #A5B4FC; border-color: rgba(255,255,255,0.22); position: relative; z-index: 1; }
.evo-card.is-next .evo-yr { color: #6C7280; }
.evo-card.is-next h3 { color: #FAFAFA; position: relative; z-index: 1; }
.evo-card.is-next p { color: #A3A9B5; position: relative; z-index: 1; }
.evo-card.is-next:hover { transform: translateY(-13px); border-color: rgba(165,180,252,0.45); }

/* flowing connector with traveling pulse */
.evo-link { position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 0 30px; gap: 12px; }
.evo-link .el-line { width: 2px; flex: 1; min-height: 44px; border-radius: 2px; background: linear-gradient(var(--border-subtle), var(--accent), var(--border-subtle)); position: relative; overflow: hidden; }
.evo-link .el-line::after { content: ""; position: absolute; left: -1px; width: 4px; height: 18px; border-radius: 4px; background: var(--accent); box-shadow: 0 0 12px 2px var(--accent-glow); top: -18px; animation: evoFlowV 2.4s cubic-bezier(.5,0,.5,1) infinite; }
@keyframes evoFlowV { 0% { top: -18px; opacity: 0; } 20% { opacity: 1; } 80% { opacity: 1; } 100% { top: 100%; opacity: 0; } }
.evo-link .el-node { width: 52px; height: 52px; border-radius: 50%; border: 1px solid var(--border-default); background: var(--bg-canvas); display: flex; align-items: center; justify-content: center; color: var(--accent); font-family: var(--font-mono); font-size: 20px; box-shadow: 0 14px 30px -16px rgba(17,19,46,0.34); position: relative; z-index: 1; }
.evo-link .el-lbl { font-family: var(--font-mono); font-size: 10px; text-transform: uppercase; letter-spacing: 0.12em; color: var(--text-tertiary); }
.evo-close { margin-top: 52px; max-width: 72ch; font-size: clamp(20px, 2.1vw, 26px); line-height: 1.38; font-weight: 500; letter-spacing: -0.014em; color: var(--text-primary); text-wrap: pretty; }
.evo-close em { font-style: normal; color: var(--accent); }

/* ── 6 · WHAT WE ARE BUILDING NOW (connected spine) ───────── */
.build-spine { position: relative; margin-top: 60px; }
.build-spine .bs-track { position: absolute; left: 8%; right: 8%; top: 0; height: 1px; background: var(--border-subtle); }
.build-spine .bs-track::before { content: ""; position: absolute; left: 0; top: 0; height: 100%; width: 0; background: var(--accent); transition: width 1.2s cubic-bezier(.22,1,.36,1); }
.build-spine.lit .bs-track::before { width: 100%; }
.build-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; padding-top: 1px; }
.build-card { position: relative; display: flex; flex-direction: column; border: 1px solid var(--border-subtle); border-radius: 18px; background: var(--bg-canvas); padding: 34px 30px 30px; transition: border-color 240ms ease, box-shadow 240ms ease, transform 240ms cubic-bezier(.22,1,.36,1); }
.build-card::before { content: ""; position: absolute; left: 50%; top: -5px; width: 9px; height: 9px; border-radius: 50%; background: var(--bg-canvas); border: 2px solid var(--accent); transform: translateX(-50%); transition: background 240ms ease; }
.build-card:hover { border-color: color-mix(in srgb, var(--accent) 45%, var(--border-subtle)); box-shadow: 0 30px 56px -40px rgba(17,19,46,0.3); transform: translateY(-4px); }
.build-card:hover::before { background: var(--accent); }
.build-card .bc-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.build-card .bc-num { font-family: var(--font-mono); font-size: 12px; font-weight: 500; letter-spacing: 0.08em; color: var(--text-tertiary); }
.build-card .bc-tag { font-family: var(--font-mono); font-size: 10.5px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; color: var(--accent); }
.build-card .bc-name { margin-top: 22px; font-size: 16px; font-weight: 600; letter-spacing: 0.01em; color: var(--accent); }
.build-card h3 { margin-top: 8px; font-size: 24px; line-height: 1.16; font-weight: 600; letter-spacing: -0.018em; color: var(--text-primary); }
.build-card p { margin-top: 16px; font-size: 14.5px; line-height: 1.62; color: var(--text-secondary); text-wrap: pretty; }
.build-card .bc-pull { margin-top: auto; padding-top: 20px; }
.build-card .bc-pull p { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--border-subtle); font-size: 14px; font-weight: 600; color: var(--text-primary); }

/* ── 7 · HOW WE WORK (inherits .anchors) ──────────────────── */

/* ── 8 · JOURNEY TIMELINE (scroll-lit) ────────────────────── */
.timeline { margin-top: 64px; position: relative; }
.tl-rail { position: absolute; left: 138px; top: 8px; bottom: 8px; width: 2px; background: var(--border-subtle); border-radius: 2px; overflow: hidden; }
.tl-fill { position: absolute; left: 0; top: 0; width: 100%; height: 0; background: linear-gradient(var(--accent), var(--accent-hover)); box-shadow: 0 0 14px 1px var(--accent-glow); transition: height 120ms linear; }
.tl-item { display: grid; grid-template-columns: 110px 56px 1fr; gap: 0; align-items: start; padding: 0 0 52px; position: relative; }
.tl-item:last-child { padding-bottom: 0; }
.tl-year { font-family: var(--font-mono); font-size: 22px; font-weight: 600; letter-spacing: 0.02em; color: var(--text-tertiary); padding-top: 1px; text-align: right; transition: color 320ms ease; }
.tl-node { display: flex; justify-content: center; padding-top: 6px; position: relative; z-index: 1; }
.tl-dot { width: 16px; height: 16px; border-radius: 50%; background: var(--bg-canvas); border: 2px solid var(--border-default); box-shadow: 0 0 0 5px var(--bg-canvas); transition: border-color 320ms ease, background 320ms ease, box-shadow 320ms ease, transform 320ms cubic-bezier(.22,1,.36,1); }
.tl-body { padding-left: 8px; }
.tl-body h4 { font-size: 20px; font-weight: 600; letter-spacing: -0.014em; color: var(--text-primary); transition: color 320ms ease; }
.tl-body p { margin-top: 10px; font-size: 15.5px; line-height: 1.6; color: var(--text-secondary); max-width: 56ch; text-wrap: pretty; }
/* lit state as the scroll thread reaches each year */
.tl-item.lit .tl-year { color: var(--accent); }
.tl-item.lit .tl-dot { border-color: var(--accent); background: var(--accent); box-shadow: 0 0 0 5px var(--bg-canvas), 0 0 16px 2px var(--accent-glow); transform: scale(1.1); }
.tl-item.lit .tl-body h4 { color: var(--text-primary); }

/* ── 9 · EXPERTISE ────────────────────────────────────────── */
.exp-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 56px; }
.exp-card { position: relative; border: 1px solid var(--border-subtle); border-radius: 16px; background: var(--bg-canvas); padding: 28px 26px; overflow: hidden; transition: border-color 220ms ease, background 220ms ease, transform 220ms cubic-bezier(.22,1,.36,1); }
.exp-card::before { content: ""; position: absolute; top: 0; right: 0; width: 0; height: 0; border-style: solid; border-width: 0 30px 30px 0; border-color: transparent var(--accent-subtle) transparent transparent; transition: border-width 260ms cubic-bezier(.22,1,.36,1); }
.exp-card:hover { border-color: var(--border-default); background: var(--bg-subtle); transform: translateY(-3px); }
.exp-card:hover::before { border-width: 0 44px 44px 0; }
.exp-card .ec-idx { font-family: var(--font-mono); font-size: 12px; font-weight: 500; letter-spacing: 0.08em; color: var(--accent); position: relative; z-index: 1; }
.exp-card h4 { margin-top: 16px; font-size: 19px; line-height: 1.25; font-weight: 600; letter-spacing: -0.012em; color: var(--text-primary); max-width: 18ch; }
.exp-card p { margin-top: 12px; font-size: 14.5px; line-height: 1.6; color: var(--text-secondary); text-wrap: pretty; }
.exp-intro { max-width: 64ch; }
.exp-intro p { margin-top: 22px; font-size: 17px; line-height: 1.65; color: var(--text-secondary); text-wrap: pretty; }
.exp-intro p strong { color: var(--text-primary); font-weight: 600; }

/* ── 10 · TEAM ────────────────────────────────────────────── */
.team-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; }
.team-copy .h2 { max-width: 16ch; }
.team-copy p { margin-top: 22px; font-size: 17px; line-height: 1.65; color: var(--text-secondary); max-width: 48ch; text-wrap: pretty; }
.team-copy p strong { color: var(--text-primary); font-weight: 600; }
.team-copy .hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.team-photo { position: relative; border-radius: 22px; overflow: hidden; aspect-ratio: 4 / 3.2; border: 1px solid var(--border-subtle); background-color: var(--bg-surface); background-image: repeating-linear-gradient(135deg, var(--bg-surface) 0 16px, var(--bg-elevated) 16px 32px); box-shadow: 0 40px 80px -52px rgba(17,19,46,0.3); }
.team-photo::after { content: ""; position: absolute; inset: 0; background: radial-gradient(ellipse 70% 60% at 70% 20%, var(--accent-glow), transparent 70%); opacity: 0.5; pointer-events: none; }
.team-photo .tp-label { position: absolute; left: 18px; bottom: 16px; z-index: 1; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-secondary); background: color-mix(in srgb, var(--bg-canvas) 86%, transparent); padding: 7px 11px; border-radius: 8px; border: 1px solid var(--border-subtle); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); }
.team-photo .tp-bars { position: absolute; left: 22px; top: 22px; z-index: 1; display: flex; flex-direction: column; gap: 4px; }
.team-photo .tp-bars i { display: block; height: 5px; background: var(--accent); transform: skewX(-20deg); border-radius: 1px; }
.team-photo .tp-bars i:nth-child(1) { width: 20px; opacity: 0.45; }
.team-photo .tp-bars i:nth-child(2) { width: 34px; opacity: 0.7; }
.team-photo .tp-bars i:nth-child(3) { width: 27px; opacity: 1; }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 1040px) {
  .co-hero-grid, .why-grid, .team-grid { grid-template-columns: 1fr; gap: 48px; }
  .evo-grid { grid-template-columns: 1fr; }
  .evo-card.is-next { transform: none; }
  .evo-card.is-next:hover { transform: translateY(-3px); }
  .evo-link { flex-direction: row; padding: 24px 0; }
  .evo-link .el-line { width: auto; height: 2px; flex: 1; min-height: 0; min-width: 30px; background: linear-gradient(90deg, var(--border-subtle), var(--accent), var(--border-subtle)); }
  .evo-link .el-line::after { left: -18px; top: -1px; width: 18px; height: 4px; animation: evoFlowH 2.4s cubic-bezier(.5,0,.5,1) infinite; }
  @keyframes evoFlowH { 0% { left: -18px; opacity: 0; } 20% { opacity: 1; } 80% { opacity: 1; } 100% { left: 100%; opacity: 0; } }
  .build-grid, .exp-grid { grid-template-columns: repeat(2, 1fr); }
  .build-spine .bs-track, .build-card::before { display: none; }
  .metrics-grid { grid-template-columns: repeat(2, 1fr); gap: 36px 0; }
  .metric:first-child, .metric:nth-child(3) { padding-left: 0; }
  .metric:nth-child(3) { border-left: none; }
  .origin-inner { grid-template-columns: 1fr; gap: 20px; }
  .origin-rail { padding-top: 0; }
}
@media (max-width: 680px) {
  .metrics-grid, .build-grid, .exp-grid { grid-template-columns: 1fr; }
  .metric { padding: 0; }
  .metric + .metric { border-left: none; border-top: 1px solid var(--border-subtle); padding-top: 28px; margin-top: 28px; }
  .tl-rail { left: 7px; }
  .tl-item { grid-template-columns: 28px 1fr; gap: 0 18px; }
  .tl-year { grid-column: 2; text-align: left; padding-top: 0; margin-bottom: 6px; font-size: 18px; }
  .tl-node { grid-column: 1; grid-row: 1 / span 2; }
  .tl-body { grid-column: 2; padding-left: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .js-reveal .co-anim, .js-reveal .co-sig-list .sig-bar { animation: none; opacity: 1; transform: none; }
  .co-sig-est .pulse-dot, .co-cue .cue-line::after, .evo-link .el-line::after { animation: none; }
  .why-synth .ws-t em::after { transition: none; transform: scaleX(1); }
  .build-spine .bs-track::before { transition: none; width: 100%; }
}