:root {
  --tep-ink: #0b1720;
  --tep-ink-2: #111f29;
  --tep-paper: #f4f1ea;
  --tep-ice: #dff3f6;
  --tep-cyan: #27b8ce;
  --tep-cyan-dark: #087f94;
  --tep-blue: #1744e8;
  --tep-yellow: #ffd85a;
  --tep-muted: #66747b;
  --tep-light-muted: #9eb0b7;
  --tep-line: rgba(11, 23, 32, .14);
  --tep-line-light: rgba(255, 255, 255, .14);
  --tep-display: "Manrope", sans-serif;
  --tep-body: "DM Sans", sans-serif;
  --tep-mono: "Space Mono", monospace;
  --tep-shell: min(1260px, calc(100vw - 96px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--tep-ink); }
body {
  margin: 0;
  overflow-x: hidden;
  background: var(--tep-ink);
  color: var(--tep-paper);
  font: 400 17px/1.6 var(--tep-body);
  -webkit-font-smoothing: antialiased;
}
body::before { display: none; }
img { display: block; max-width: 100%; }
a { color: inherit; }
button, summary { font: inherit; }
figure, blockquote { margin: 0; }
.shell { width: var(--tep-shell); margin: 0 auto; }
.paper { position: relative; background: var(--tep-paper); color: var(--tep-ink); }
.ice { position: relative; background: var(--tep-ice); color: var(--tep-ink); }
.ink { position: relative; overflow: hidden; background: var(--tep-ink); color: var(--tep-paper); }

.tep-progress {
  position: fixed;
  z-index: 9900;
  top: 0;
  right: 0;
  left: 0;
  height: 2px;
  pointer-events: none;
}
.tep-progress span {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--tep-cyan);
  transform: scaleX(0);
  transform-origin: left;
}

.section-kicker,
.section-index,
.eyebrow,
.mini-label {
  margin: 0 0 26px;
  color: var(--tep-cyan);
  font: 700 10px/1.4 var(--tep-mono);
  letter-spacing: .14em;
  text-transform: uppercase;
}
.paper .section-kicker,
.paper .section-index,
.ice .section-kicker { color: var(--tep-cyan-dark); }
.section-head { max-width: 880px; }
.section-head h2,
.chapter-head h2,
.impact-head h2,
.reflection-title h2,
.research-copy h2 {
  margin: 0;
  font: 600 clamp(46px, 6.2vw, 86px)/.98 var(--tep-display);
  letter-spacing: -.06em;
}
.section-head > p:last-child { max-width: 650px; margin: 28px 0 0; color: var(--tep-light-muted); font-size: 18px; }
.section-head--dark > p:last-child { color: var(--tep-muted); }

/* Hero */
.tep-hero {
  position: relative;
  min-height: max(800px, 100svh);
  overflow: hidden;
  isolation: isolate;
  background:
    radial-gradient(circle at 18% 18%, rgba(39, 184, 206, .12), transparent 28%),
    linear-gradient(145deg, #08131a 0%, #0b1720 56%, #102631 100%);
}
.tep-hero::before {
  content: "";
  position: absolute;
  z-index: -2;
  inset: 0;
  opacity: .18;
  background-image: linear-gradient(rgba(255,255,255,.07) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.07) 1px, transparent 1px);
  background-size: 80px 80px;
  -webkit-mask-image: linear-gradient(90deg, black, transparent 56%);
  mask-image: linear-gradient(90deg, black, transparent 56%);
}
.hero-orbit {
  position: absolute;
  z-index: -1;
  border: 1px solid rgba(39,184,206,.19);
  border-radius: 50%;
  pointer-events: none;
}
.hero-orbit::after { content: ""; position: absolute; width: 8px; height: 8px; border-radius: 50%; background: var(--tep-cyan); box-shadow: 0 0 28px var(--tep-cyan); }
.hero-orbit--one { width: 780px; height: 780px; top: -210px; right: -230px; transform: rotate(24deg); }
.hero-orbit--one::after { left: 74px; bottom: 120px; }
.hero-orbit--two { width: 560px; height: 560px; right: -45px; bottom: -310px; border-color: rgba(255,216,90,.15); }
.hero-orbit--two::after { top: 39px; left: 122px; background: var(--tep-yellow); box-shadow: 0 0 28px var(--tep-yellow); }
.hero-shell {
  display: grid;
  grid-template-columns: minmax(430px, .85fr) minmax(560px, 1.15fr);
  gap: clamp(48px, 6vw, 100px);
  align-items: center;
  width: var(--tep-shell);
  min-height: max(800px, 100svh);
  margin: 0 auto;
  padding: 150px 0 104px;
}
.hero-copy { position: relative; z-index: 2; }
.eyebrow { display: flex; align-items: center; gap: 14px; color: #91a5ad; }
.eyebrow span { color: var(--tep-cyan); }
.hero-copy h1 {
  max-width: 720px;
  margin: 0;
  font: 600 clamp(66px, 7.6vw, 118px)/.86 var(--tep-display);
  letter-spacing: -.077em;
}
.hero-copy h1 em { color: var(--tep-cyan); font-style: normal; font-weight: 400; }
.hero-dek { max-width: 590px; margin: 34px 0 0; color: #afbdc2; font-size: clamp(17px, 1.45vw, 21px); line-height: 1.52; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 12px 28px; margin-top: 34px; color: #71858e; font: 700 9px/1.5 var(--tep-mono); letter-spacing: .1em; text-transform: uppercase; }
.hero-meta span { position: relative; }
.hero-meta span + span::before { content: "/"; position: absolute; left: -18px; color: #3b525b; }
.hero-window {
  position: relative;
  width: 100%;
  height: min(690px, 74vh);
  min-height: 540px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 18px;
  background: #f6f7f7;
  box-shadow: 0 45px 100px rgba(0,0,0,.42), 0 0 0 8px rgba(255,255,255,.025);
  transform: rotate(1.4deg);
}
.hero-window::after { content: ""; position: absolute; inset: 0; pointer-events: none; box-shadow: inset 0 0 0 1px rgba(255,255,255,.4); border-radius: inherit; }
.hero-window__bar,
.frame-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  height: 42px;
  padding: 0 16px;
  border-bottom: 1px solid #dce3e5;
  background: #edf1f2;
  color: #69787e;
  font: 700 8px/1 var(--tep-mono);
  letter-spacing: .06em;
  text-transform: uppercase;
}
.hero-window__bar span { margin-right: auto; }
.hero-window__bar i,
.frame-bar i { width: 7px; height: 7px; border-radius: 50%; background: #b8c4c8; }
.hero-window__bar i:nth-of-type(1), .frame-bar i:nth-of-type(1) { background: #ff796f; }
.hero-window__bar i:nth-of-type(2), .frame-bar i:nth-of-type(2) { background: #ffd667; }
.hero-window__bar i:nth-of-type(3), .frame-bar i:nth-of-type(3) { background: #6cd697; }
.hero-window__viewport { height: calc(100% - 86px); overflow: hidden; }
.hero-window__viewport img { width: 100%; height: auto; }
.hero-window figcaption {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 44px;
  padding: 0 16px;
  background: #fff;
  color: #54636a;
  font: 700 8px/1.4 var(--tep-mono);
  letter-spacing: .06em;
  text-transform: uppercase;
}
.hero-window figcaption span { color: var(--tep-cyan-dark); }
.scroll-cue {
  position: absolute;
  z-index: 3;
  bottom: 34px;
  left: max(48px, calc((100vw - 1260px) / 2));
  display: flex;
  align-items: center;
  gap: 14px;
  color: #758991;
  font: 700 9px/1 var(--tep-mono);
  letter-spacing: .12em;
  text-decoration: none;
  text-transform: uppercase;
}
.scroll-cue i { display: grid; place-items: center; width: 34px; height: 34px; border: 1px solid #33505b; border-radius: 50%; color: var(--tep-cyan); font-style: normal; }
.tep-hero .reveal { opacity: 1; transform: none; }

/* Premise */
.premise { padding: 150px 0; }
.premise-grid { display: grid; grid-template-columns: 140px minmax(0, 1fr) 300px; gap: 60px; align-items: start; }
.premise .section-index { padding-top: 13px; }
.premise-copy .lede { margin: 0; font: 500 clamp(36px, 4.5vw, 62px)/1.08 var(--tep-display); letter-spacing: -.05em; }
.premise-copy mark { padding: 0; background: none; color: var(--tep-cyan-dark); }
.premise-copy > p:last-child { max-width: 680px; margin: 36px 0 0; color: #5e696e; }
.fact-list { border-top: 1px solid var(--tep-line); }
.fact-list div { display: grid; gap: 5px; padding: 18px 0 20px; border-bottom: 1px solid var(--tep-line); }
.fact-list span { color: #778489; font: 700 9px/1.4 var(--tep-mono); letter-spacing: .1em; text-transform: uppercase; }
.fact-list strong { font-size: 15px; font-weight: 600; }
.fact-list small { color: #7b878b; font-size: 12px; }

/* Retail gap */
.retail-gap { padding: 150px 0; }
.retail-gap::before { content: ""; position: absolute; width: 720px; height: 720px; top: 160px; right: -300px; border: 1px solid rgba(39,184,206,.1); border-radius: 50%; }
.store-diptych { display: grid; grid-template-columns: 1.55fr 1fr; gap: 18px; margin-top: 80px; }
.store-photo { position: relative; min-height: 430px; overflow: hidden; border-radius: 3px; background: #13242e; }
.store-photo img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.75) contrast(1.08) brightness(.78); transform: scale(1.02); }
.store-photo::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(5,14,20,.84), transparent 55%); }
.store-photo figcaption { position: absolute; z-index: 1; right: 26px; bottom: 24px; left: 26px; display: flex; justify-content: space-between; align-items: end; gap: 20px; }
.store-photo figcaption span { color: var(--tep-cyan); font: 700 9px/1.3 var(--tep-mono); letter-spacing: .1em; text-transform: uppercase; }
.store-photo figcaption b { font-size: 14px; font-weight: 500; }
.legacy-comparison { display: grid; grid-template-columns: 360px minmax(0, 1fr); gap: 72px; align-items: center; margin-top: 120px; }
.legacy-copy h3,
.fit-copy h3 { margin: 0; font: 600 clamp(34px, 4vw, 54px)/1.02 var(--tep-display); letter-spacing: -.05em; }
.legacy-copy > p:not(.mini-label), .fit-copy > p:not(.mini-label) { margin: 26px 0 0; color: var(--tep-light-muted); }
.legacy-copy ul { padding: 0; margin: 34px 0 0; list-style: none; }
.legacy-copy li { display: grid; grid-template-columns: 34px 1fr; gap: 12px; padding: 15px 0; border-top: 1px solid var(--tep-line-light); color: #bdc9cd; font-size: 14px; }
.legacy-copy li:last-child { border-bottom: 1px solid var(--tep-line-light); }
.legacy-copy li span { color: var(--tep-cyan); font: 700 9px/1.7 var(--tep-mono); }
.screen-frame { overflow: hidden; border: 1px solid #d9e1e3; border-radius: 10px; background: white; box-shadow: 0 30px 80px rgba(3,10,14,.24); }
.screen-frame img { width: 100%; }
.screen-frame--legacy { border-color: #263943; background: #192a34; box-shadow: 0 36px 90px rgba(0,0,0,.44); }
.screen-frame--legacy .frame-bar, .screen-frame--dark .frame-bar { border-color: #273a44; background: #172832; color: #80949c; }
.frame-bar span { margin-left: 8px; }
.frame-bar b { margin-left: auto; color: var(--tep-cyan-dark); font-size: 8px; }

/* Diagnosis */
.diagnosis { padding: 150px 0; }
.uncertainty-grid { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 80px; border-top: 1px solid var(--tep-line); border-bottom: 1px solid var(--tep-line); }
.uncertainty-card { display: flex; flex-direction: column; min-height: 420px; padding: 28px 34px 32px; border-right: 1px solid var(--tep-line); }
.uncertainty-card:first-child { border-left: 1px solid var(--tep-line); }
.uncertainty-card > span { color: var(--tep-cyan-dark); font: 700 9px/1.4 var(--tep-mono); letter-spacing: .1em; text-transform: uppercase; }
.uncertainty-card h3 { margin: 78px 0 0; font: 500 clamp(26px, 2.6vw, 38px)/1.08 var(--tep-display); letter-spacing: -.04em; }
.uncertainty-card p { margin: 22px 0 0; color: var(--tep-muted); font-size: 15px; }
.uncertainty-card small { margin-top: auto; padding-top: 28px; color: #77858a; font: 700 8px/1.5 var(--tep-mono); letter-spacing: .08em; text-transform: uppercase; }
.thesis-quote { display: grid; grid-template-columns: 180px 1fr; gap: 50px; align-items: start; margin-top: 100px; padding-top: 30px; border-top: 3px solid var(--tep-ink); }
.thesis-quote span { padding-top: 10px; color: var(--tep-cyan-dark); font: 700 9px/1.5 var(--tep-mono); letter-spacing: .12em; text-transform: uppercase; }
.thesis-quote p { max-width: 910px; margin: 0; font: 500 clamp(32px, 4vw, 54px)/1.1 var(--tep-display); letter-spacing: -.045em; }

/* Research */
.research { padding: 150px 0; }
.research-grid { display: grid; grid-template-columns: minmax(380px, .85fr) minmax(550px, 1.15fr); gap: 90px; align-items: center; }
.research-copy > p:not(.section-kicker) { max-width: 580px; margin: 28px 0 0; color: #51656d; }
.posture-list { margin-top: 46px; border-top: 1px solid rgba(11,23,32,.18); }
.posture-list article { display: grid; grid-template-columns: 100px 1fr; gap: 8px 24px; padding: 22px 0; border-bottom: 1px solid rgba(11,23,32,.18); }
.posture-list span { grid-row: span 2; color: var(--tep-cyan-dark); font: 700 9px/1.6 var(--tep-mono); letter-spacing: .08em; text-transform: uppercase; }
.posture-list strong { font: 600 17px/1.35 var(--tep-display); }
.posture-list p { margin: 0; color: #62747b; font-size: 13px; }
.persona-board { overflow: hidden; border: 1px solid rgba(11,23,32,.16); border-radius: 4px; background: #18181b; box-shadow: 24px 28px 0 rgba(11,23,32,.075); }
.persona-board img { width: 100%; }
.persona-board figcaption { padding: 14px 18px; background: var(--tep-ink); color: #82979f; font: 700 8px/1.4 var(--tep-mono); letter-spacing: .08em; text-transform: uppercase; }

/* Architecture */
.architecture { padding: 150px 0; }
.architecture::after { content: ""; position: absolute; top: 0; right: -200px; width: 600px; height: 600px; border-radius: 50%; background: rgba(39,184,206,.055); filter: blur(100px); pointer-events: none; }
.journey-rail { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr 28px 1fr 28px 1fr 28px 1fr; gap: 12px; align-items: center; margin-top: 86px; }
.journey-rail article { min-height: 300px; padding: 24px; border: 1px solid var(--tep-line-light); background: rgba(255,255,255,.025); }
.journey-rail article > span { color: #637b84; font: 700 9px/1 var(--tep-mono); }
.journey-rail article small { display: block; margin-top: 62px; color: var(--tep-cyan); font: 700 9px/1.4 var(--tep-mono); letter-spacing: .12em; text-transform: uppercase; }
.journey-rail article h3 { margin: 12px 0 0; font: 600 22px/1.12 var(--tep-display); letter-spacing: -.035em; }
.journey-rail article p { margin: 16px 0 0; color: #8ea2a9; font-size: 13px; line-height: 1.55; }
.journey-rail > i { height: 1px; background: #35505a; position: relative; }
.journey-rail > i::after { content: ""; position: absolute; top: -3px; right: 0; width: 6px; height: 6px; border-top: 1px solid #617984; border-right: 1px solid #617984; transform: rotate(45deg); }
.wireflow-detail { position: relative; z-index: 1; margin-top: 32px; border-top: 1px solid var(--tep-line-light); border-bottom: 1px solid var(--tep-line-light); }
.wireflow-detail summary { display: flex; align-items: center; justify-content: space-between; padding: 24px 0; list-style: none; color: #bccbd0; font: 700 10px/1.4 var(--tep-mono); letter-spacing: .1em; text-transform: uppercase; }
.wireflow-detail summary::-webkit-details-marker { display: none; }
.wireflow-detail summary i { display: grid; place-items: center; width: 32px; height: 32px; border: 1px solid #35505b; border-radius: 50%; color: var(--tep-cyan); font-style: normal; font-size: 17px; }
.wireflow-detail figure { padding-bottom: 34px; }
.wireflow-detail img { width: 100%; background: var(--tep-ice); }
.wireflow-detail figcaption { padding-top: 15px; color: #849aa2; font-size: 12px; }

/* Final product chapters */
.chapter { padding: 150px 0; }
.chapter-head { display: grid; grid-template-columns: 1.1fr .9fr; gap: 100px; align-items: end; }
.chapter-copy { padding-bottom: 4px; }
.chapter-copy > p { margin: 0; color: var(--tep-muted); font-size: 17px; }
.ink .chapter-copy > p { color: var(--tep-light-muted); }
.chapter-copy ul { padding: 0; margin: 28px 0 0; list-style: none; }
.chapter-copy li { padding: 9px 0 9px 18px; border-top: 1px solid var(--tep-line); color: #536167; font-size: 13px; position: relative; }
.chapter-copy li:last-child { border-bottom: 1px solid var(--tep-line); }
.chapter-copy li::before { content: ""; position: absolute; left: 0; top: 17px; width: 5px; height: 5px; border-radius: 50%; background: var(--tep-cyan-dark); }
.annotated-home { display: grid; grid-template-columns: minmax(0, 1fr) 290px; align-items: end; gap: 28px; margin-top: 90px; }
.annotated-home img { width: 100%; border: 1px solid var(--tep-line); background: #6a858d; }
.annotated-home figcaption { display: grid; gap: 12px; padding: 26px; border-top: 3px solid var(--tep-cyan-dark); }
.annotated-home figcaption span, .mobile-fit figcaption span { color: var(--tep-cyan-dark); font: 700 9px/1.4 var(--tep-mono); letter-spacing: .1em; text-transform: uppercase; }
.annotated-home figcaption b { font: 600 22px/1.25 var(--tep-display); letter-spacing: -.03em; }
.catalogue-frame, .pdp-frame, .cart-frame { margin-top: 86px; }
.fit-story { display: grid; grid-template-columns: .72fr 1.28fr; gap: 90px; align-items: center; margin-top: 120px; }
.fit-copy > p:not(.mini-label) { color: #51666e; }
.fit-rule { display: grid; grid-template-columns: 100px 1fr; gap: 22px; margin-top: 36px; padding: 18px 0; border-top: 1px solid rgba(11,23,32,.18); }
.fit-rule + .fit-rule { margin-top: 0; border-bottom: 1px solid rgba(11,23,32,.18); }
.fit-rule span { color: #768a92; font: 700 8px/1.5 var(--tep-mono); letter-spacing: .08em; text-transform: uppercase; }
.fit-rule p { margin: 0; color: #53666d; font-size: 13px; }
.fit-rule--new span { color: var(--tep-cyan-dark); }
.mobile-fit { position: relative; padding: 46px 46px 0; overflow: hidden; background: #bce8ee; box-shadow: 28px 30px 0 rgba(11,23,32,.08); }
.mobile-fit::before { content: ""; position: absolute; top: -220px; right: -160px; width: 500px; height: 500px; border: 1px solid rgba(11,23,32,.12); border-radius: 50%; }
.mobile-fit img { position: relative; width: min(720px, 100%); margin: 0 auto; }
.mobile-fit figcaption { display: flex; justify-content: space-between; gap: 24px; padding: 20px 0; border-top: 1px solid rgba(11,23,32,.13); }
.mobile-fit figcaption b { color: #263d46; font-size: 13px; font-weight: 600; }
.pdp-frame { border-color: #29414c; background: #edf7f8; box-shadow: 0 34px 90px rgba(0,0,0,.38); }
.decision-notes { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 42px; border-top: 1px solid var(--tep-line-light); }
.decision-notes article { padding: 28px 30px 0 0; }
.decision-notes article + article { padding-left: 30px; border-left: 1px solid var(--tep-line-light); }
.decision-notes span { color: var(--tep-cyan); font: 700 9px/1.4 var(--tep-mono); }
.decision-notes h3 { margin: 30px 0 0; font: 600 20px/1.2 var(--tep-display); letter-spacing: -.025em; }
.decision-notes p { margin: 13px 0 0; color: #8fa2a9; font-size: 13px; }
.commit-equation { display: flex; align-items: center; justify-content: center; gap: 20px; margin-top: 48px; padding: 34px; border-top: 1px solid var(--tep-line); border-bottom: 1px solid var(--tep-line); font: 500 clamp(18px, 2vw, 28px)/1.2 var(--tep-display); }
.commit-equation i { color: #8a999e; font-style: normal; }
.commit-equation strong { color: var(--tep-cyan-dark); font-weight: 600; }

/* Impact */
.impact.signal { position: relative; overflow: hidden; padding: 150px 0; background: var(--tep-blue); color: #fff; }
.impact.signal::before { content: ""; position: absolute; width: 800px; height: 800px; right: -280px; top: -320px; border: 1px solid rgba(255,255,255,.16); border-radius: 50%; box-shadow: 0 0 0 90px rgba(255,255,255,.025), 0 0 0 180px rgba(255,255,255,.02); }
.impact-head { position: relative; z-index: 1; max-width: 870px; }
.impact-head .section-kicker { color: #92efff; }
.impact-head > p:last-child { max-width: 630px; margin: 28px 0 0; color: rgba(255,255,255,.67); }
.metric-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.25fr repeat(2, 1fr); margin-top: 80px; border-top: 1px solid rgba(255,255,255,.25); border-left: 1px solid rgba(255,255,255,.25); }
.metric { display: flex; flex-direction: column; min-height: 235px; padding: 24px 28px; border-right: 1px solid rgba(255,255,255,.25); border-bottom: 1px solid rgba(255,255,255,.25); }
.metric--hero { grid-row: span 2; min-height: 470px; }
.metric span { color: rgba(255,255,255,.66); font: 700 9px/1.4 var(--tep-mono); letter-spacing: .1em; text-transform: uppercase; }
.metric strong { margin-top: auto; font: 500 clamp(54px, 7vw, 100px)/.9 var(--tep-display); letter-spacing: -.075em; }
.metric--hero strong { font-size: clamp(90px, 11vw, 160px); }
.metric small { margin-top: 16px; color: #9cefff; font: 700 9px/1.4 var(--tep-mono); letter-spacing: .08em; text-transform: uppercase; }
.evidence-ledger { position: relative; z-index: 1; margin-top: 80px; border: 1px solid rgba(255,255,255,.3); background: rgba(4,19,98,.2); }
.evidence-ledger__head { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: end; padding: 34px 38px 38px; }
.evidence-ledger__head span, .evidence-note span { color: #9cefff; font: 700 9px/1.4 var(--tep-mono); letter-spacing: .1em; text-transform: uppercase; }
.evidence-ledger__head h3 { max-width: 540px; margin: 14px 0 0; font: 600 clamp(28px, 3vw, 42px)/1.08 var(--tep-display); letter-spacing: -.045em; }
.evidence-ledger__head > p { max-width: 480px; margin: 0; color: rgba(255,255,255,.65); font-size: 14px; }
.evidence-table { border-top: 1px solid rgba(255,255,255,.25); }
.evidence-row { display: grid; grid-template-columns: 1.25fr 1.25fr .8fr .8fr; min-height: 128px; border-bottom: 1px solid rgba(255,255,255,.18); }
.evidence-row > * { min-width: 0; padding: 24px 26px; border-right: 1px solid rgba(255,255,255,.18); }
.evidence-row > *:last-child { border-right: 0; }
.evidence-row--head { min-height: auto; background: rgba(255,255,255,.08); }
.evidence-row--head span { padding: 12px 26px; color: rgba(255,255,255,.52); font: 700 8px/1.4 var(--tep-mono); letter-spacing: .1em; text-transform: uppercase; }
.evidence-measure { display: flex; flex-direction: column; justify-content: center; gap: 7px; }
.evidence-measure strong { font: 600 16px/1.3 var(--tep-display); }
.evidence-measure small, .evidence-change small, .evidence-source small { color: rgba(255,255,255,.56); font-size: 11px; line-height: 1.45; }
.evidence-values { display: grid; grid-template-columns: 1fr auto 1fr; gap: 13px; align-items: center; }
.evidence-values span { display: grid; gap: 7px; }
.evidence-values small { color: rgba(255,255,255,.5); font: 700 7px/1.4 var(--tep-mono); letter-spacing: .1em; text-transform: uppercase; }
.evidence-values b { font: 500 clamp(22px, 2.2vw, 31px)/1 var(--tep-display); letter-spacing: -.04em; }
.evidence-values i { color: #9cefff; font-style: normal; }
.evidence-change, .evidence-source { display: flex; flex-direction: column; justify-content: center; gap: 6px; }
.evidence-change strong { color: #9cefff; font: 600 19px/1.2 var(--tep-display); }
.evidence-source span { width: fit-content; padding: 4px 7px; border: 1px solid rgba(156,239,255,.42); color: #b8f5ff; font: 700 8px/1.2 var(--tep-mono); letter-spacing: .08em; }
.evidence-note { display: grid; grid-template-columns: 160px 1fr; gap: 30px; padding: 24px 38px 28px; }
.evidence-note p { max-width: 720px; margin: 0; color: rgba(255,255,255,.58); font-size: 12px; }

/* Reflection + footer */
.reflection { padding: 150px 0; }
.reflection-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 110px; align-items: start; }
.reflection-copy { padding-top: 56px; }
.reflection-copy > p { margin: 0 0 24px; color: #a2b2b8; font-size: 18px; }
.reflection-rule { display: grid; gap: 12px; margin-top: 52px; padding-top: 24px; border-top: 1px solid var(--tep-line-light); }
.reflection-rule span { color: var(--tep-cyan); font: 700 9px/1.4 var(--tep-mono); letter-spacing: .1em; text-transform: uppercase; }
.reflection-rule strong { font: 500 clamp(28px, 3vw, 42px)/1.15 var(--tep-display); letter-spacing: -.04em; }
.project-nav { display: grid; grid-template-columns: 1fr 1fr; background: var(--tep-paper); color: var(--tep-ink); border-top: 1px solid var(--tep-line); }
.project-nav a { display: grid; grid-template-columns: 1fr auto; gap: 9px 30px; min-height: 210px; padding: 52px max(48px, calc((100vw - 1260px) / 2)); text-decoration: none; transition: background .3s ease, color .3s ease; }
.project-nav a + a { border-left: 1px solid var(--tep-line); text-align: right; }
.project-nav span { grid-column: 1; color: #79878c; font: 700 9px/1.4 var(--tep-mono); letter-spacing: .1em; text-transform: uppercase; }
.project-nav strong { grid-column: 1; align-self: end; font: 600 clamp(30px, 3.4vw, 50px)/1 var(--tep-display); letter-spacing: -.045em; }
.project-nav i { grid-column: 2; grid-row: 1 / 3; align-self: center; font-style: normal; font-size: 26px; }
.project-nav a:hover { background: var(--tep-cyan); color: var(--tep-ink); }
.project-nav a:hover span { color: #155967; }

/* Motion */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .75s ease, transform .75s cubic-bezier(.2,.7,.2,1); }
.reveal[data-delay="1"] { transition-delay: .1s; }
.reveal[data-delay="2"] { transition-delay: .2s; }
.reveal.is-visible { opacity: 1; transform: none; }
section:target .reveal { opacity: 1; transform: none; }

@media (max-width: 1100px) {
  :root { --tep-shell: min(100% - 56px, 1100px); }
  .hero-shell { grid-template-columns: .9fr 1.1fr; gap: 40px; }
  .hero-copy h1 { font-size: clamp(58px, 7vw, 86px); }
  .premise-grid { grid-template-columns: 110px minmax(0, 1fr) 250px; gap: 36px; }
  .legacy-comparison { grid-template-columns: 310px minmax(0, 1fr); gap: 42px; }
  .research-grid { gap: 50px; }
  .journey-rail { grid-template-columns: 1fr 18px 1fr 18px 1fr 18px 1fr; gap: 8px; }
  .journey-rail article { padding: 20px; }
  .chapter-head { gap: 60px; }
  .fit-story { gap: 55px; }
}

@media (max-width: 820px) {
  :root { --tep-shell: calc(100vw - 40px); }
  .section-head h2, .chapter-head h2, .impact-head h2, .reflection-title h2, .research-copy h2 { font-size: clamp(42px, 9vw, 66px); }
  .tep-hero { min-height: auto; }
  .hero-shell { display: block; min-height: auto; padding: 132px 0 110px; }
  .hero-copy { max-width: 680px; }
  .hero-copy h1 { font-size: clamp(62px, 12vw, 96px); }
  .hero-window { width: 86%; height: 620px; margin: 70px 0 0 auto; }
  .scroll-cue { left: 20px; }
  .premise, .retail-gap, .diagnosis, .research, .architecture, .chapter, .impact.signal, .reflection { padding: 100px 0; }
  .premise-grid { grid-template-columns: 1fr; gap: 26px; }
  .premise .section-index { padding: 0; }
  .fact-list { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 28px; }
  .fact-list div { padding-right: 16px; }
  .store-photo { min-height: 330px; }
  .legacy-comparison { grid-template-columns: 1fr; gap: 50px; margin-top: 80px; }
  .legacy-copy { max-width: 600px; }
  .uncertainty-grid { grid-template-columns: 1fr; }
  .uncertainty-card { min-height: auto; padding: 28px 0; border-right: 0; border-top: 1px solid var(--tep-line); }
  .uncertainty-card:first-child { border-left: 0; border-top: 0; }
  .uncertainty-card h3 { margin-top: 44px; }
  .uncertainty-card small { margin-top: 42px; }
  .thesis-quote { grid-template-columns: 1fr; gap: 20px; }
  .research-grid { grid-template-columns: 1fr; gap: 60px; }
  .persona-board { width: 90%; margin-left: auto; }
  .journey-rail { grid-template-columns: 1fr 1fr; }
  .journey-rail > i { display: none; }
  .chapter-head { grid-template-columns: 1fr; gap: 42px; }
  .chapter-copy { max-width: 650px; }
  .annotated-home { grid-template-columns: 1fr; }
  .annotated-home figcaption { max-width: 440px; margin-left: auto; }
  .fit-story { grid-template-columns: 1fr; }
  .fit-copy { max-width: 620px; }
  .mobile-fit { width: 88%; margin-left: auto; }
  .decision-notes { grid-template-columns: 1fr; }
  .decision-notes article, .decision-notes article + article { padding: 28px 0; border-left: 0; border-bottom: 1px solid var(--tep-line-light); }
  .metric-grid { grid-template-columns: 1fr 1fr; }
  .metric--hero { grid-row: auto; grid-column: span 2; min-height: 350px; }
  .evidence-ledger__head { grid-template-columns: 1fr; gap: 24px; }
  .evidence-row { grid-template-columns: 1fr 1fr; }
  .evidence-row--head { display: none; }
  .evidence-row > * { border-bottom: 1px solid rgba(255,255,255,.14); }
  .evidence-row > *:nth-child(2) { border-right: 0; }
  .evidence-row > *:nth-last-child(-n+2) { border-bottom: 0; }
  .reflection-grid { grid-template-columns: 1fr; gap: 10px; }
  .reflection-copy { max-width: 680px; margin-left: auto; }
}

@media (max-width: 560px) {
  :root { --tep-shell: calc(100vw - 32px); }
  body { font-size: 16px; }
  .section-head h2, .chapter-head h2, .impact-head h2, .reflection-title h2, .research-copy h2 { font-size: clamp(38px, 12vw, 54px); }
  .tep-hero::before { background-size: 48px 48px; }
  .hero-shell { padding: 112px 0 94px; }
  .hero-copy h1 { font-size: clamp(56px, 17vw, 82px); }
  .hero-dek { font-size: 17px; }
  .hero-window { width: 94%; height: 500px; min-height: 0; margin-top: 54px; border-radius: 10px; transform: rotate(.6deg); }
  .hero-window__viewport { height: calc(100% - 82px); }
  .hero-window figcaption b { display: none; }
  .scroll-cue { bottom: 24px; }
  .premise, .retail-gap, .diagnosis, .research, .architecture, .chapter, .impact.signal, .reflection { padding: 78px 0; }
  .premise-copy .lede { font-size: 38px; }
  .fact-list { grid-template-columns: 1fr; }
  .store-diptych { grid-template-columns: 1fr; margin-top: 50px; }
  .store-photo { min-height: 270px; }
  .store-photo figcaption { display: grid; }
  .uncertainty-grid { margin-top: 54px; }
  .thesis-quote { margin-top: 70px; }
  .thesis-quote p { font-size: 32px; }
  .posture-list article { grid-template-columns: 82px 1fr; gap: 8px 14px; }
  .persona-board { width: 100%; box-shadow: 12px 14px 0 rgba(11,23,32,.075); }
  .journey-rail { grid-template-columns: 1fr; margin-top: 56px; }
  .journey-rail article { min-height: 240px; }
  .journey-rail article small { margin-top: 40px; }
  .catalogue-frame, .pdp-frame, .cart-frame, .annotated-home { margin-top: 56px; }
  .frame-bar span { max-width: 55%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .fit-story { margin-top: 78px; }
  .mobile-fit { width: 100%; padding: 24px 18px 0; box-shadow: 12px 14px 0 rgba(11,23,32,.08); }
  .mobile-fit figcaption { display: grid; }
  .commit-equation { flex-wrap: wrap; gap: 12px; padding: 26px 12px; }
  .metric-grid { grid-template-columns: 1fr; }
  .metric, .metric--hero { grid-column: auto; min-height: 220px; }
  .metric--hero strong { font-size: 88px; }
  .evidence-ledger { margin-top: 56px; }
  .evidence-ledger__head { padding: 28px 22px; }
  .evidence-row { grid-template-columns: 1fr; }
  .evidence-row > *, .evidence-row > *:nth-child(2) { padding: 20px 22px; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.14); }
  .evidence-row > *:last-child { border-bottom: 0; }
  .evidence-values { max-width: 290px; }
  .evidence-note { grid-template-columns: 1fr; gap: 10px; padding: 22px; }
  .reflection-copy { padding-top: 30px; }
  .project-nav { grid-template-columns: 1fr; }
  .project-nav a { min-height: 160px; padding: 34px 24px; }
  .project-nav a + a { border-top: 1px solid var(--tep-line); border-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .project-nav a { transition: none; }
}