:root {
  --ink: #102437;
  --muted: #607080;
  --paper: #f7f9fb;
  --white: #ffffff;
  --night: #07131f;
  --night-2: #0c2133;
  --cyan: #41d9c8;
  --cyan-dark: #087d72;
  --orange: #ff9c61;
  --blue: #77aaff;
  --line: #dce4ea;
  --shadow: 0 22px 70px rgba(7, 19, 31, .12);
  --radius: 1.4rem;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
.skip-link { position: absolute; left: -9999px; top: 1rem; z-index: 100; padding: .75rem 1rem; background: var(--white); }
.skip-link:focus { left: 1rem; }

.site-header {
  width: min(1180px, calc(100% - 3rem));
  margin: 0 auto;
  min-height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}
.brand { display: flex; align-items: center; gap: .75rem; text-decoration: none; font-weight: 750; letter-spacing: -.02em; }
.brand-mark { display: grid; place-items: center; width: 2.3rem; height: 2.3rem; border-radius: 50%; color: var(--night); background: var(--cyan); font-size: .75rem; letter-spacing: .04em; }
nav { display: flex; gap: 1.75rem; }
nav a { color: var(--muted); font-size: .92rem; font-weight: 650; text-decoration: none; }
nav a:hover, nav a:focus-visible { color: var(--ink); }

.hero {
  width: min(1180px, calc(100% - 3rem));
  min-height: 680px;
  margin: 0 auto;
  padding: 5.5rem 0 7rem;
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(310px, .55fr);
  align-items: center;
  gap: clamp(3rem, 8vw, 8rem);
}
.eyebrow { margin: 0 0 1.25rem; color: var(--cyan-dark); font-size: .78rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.eyebrow span { display: inline-block; width: .52rem; height: .52rem; margin-right: .55rem; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 .3rem rgba(65,217,200,.14); }
.hero h1, .section-heading h2, .closing h2 { margin: 0; letter-spacing: -.055em; line-height: 1.03; }
.hero h1 { max-width: 860px; font-size: clamp(3.2rem, 6.3vw, 6.2rem); font-weight: 750; }
.hero h1 em { color: var(--cyan-dark); font-family: Georgia, serif; font-weight: 500; }
.hero-intro { max-width: 760px; margin: 2rem 0 0; color: var(--muted); font-size: clamp(1.08rem, 1.6vw, 1.28rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2rem; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: .7rem; min-height: 3.2rem; padding: .8rem 1.15rem; border: 1px solid transparent; border-radius: 999px; text-decoration: none; font-weight: 750; transition: transform .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: var(--night); background: var(--cyan); }
.button-primary:hover { background: #72e7db; }
.button-secondary { border-color: var(--line); background: rgba(255,255,255,.72); }

.signal-card { overflow: hidden; padding: 1.5rem; border: 1px solid rgba(255,255,255,.14); border-radius: 2rem; color: var(--white); background: radial-gradient(circle at 80% 10%, rgba(65,217,200,.2), transparent 34%), var(--night); box-shadow: var(--shadow); }
.signal-label { margin: 0; color: #a9b8c5; font-size: .74rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.signal-orbit { position: relative; width: 250px; height: 250px; margin: 2.5rem auto; border: 1px solid rgba(65,217,200,.24); border-radius: 50%; }
.signal-orbit::before { content: ""; position: absolute; inset: 42px; border: 1px dashed rgba(255,255,255,.15); border-radius: 50%; }
.orbit-centre, .orbit-item { position: absolute; display: grid; place-items: center; border-radius: 50%; font-weight: 800; }
.orbit-centre { inset: 50%; width: 76px; height: 76px; transform: translate(-50%,-50%); color: var(--night); background: var(--cyan); }
.orbit-item { width: 48px; height: 48px; border: 1px solid rgba(255,255,255,.18); background: var(--night-2); font-size: .75rem; }
.orbit-one { top: -12px; left: 100px; }
.orbit-two { right: -12px; bottom: 55px; }
.orbit-three { left: -12px; bottom: 55px; }
.signal-list { display: grid; gap: .65rem; }
.signal-list span { padding: .7rem .85rem; border-top: 1px solid rgba(255,255,255,.1); color: #dbe5ec; font-size: .88rem; }

.proof-strip { width: min(1180px, calc(100% - 3rem)); margin: 0 auto 8rem; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.proof-strip div { padding: 1.5rem; border-right: 1px solid var(--line); }
.proof-strip div:last-child { border-right: 0; }
.proof-strip strong, .proof-strip span { display: block; }
.proof-strip strong { font-size: 1.08rem; }
.proof-strip span { margin-top: .2rem; color: var(--muted); font-size: .82rem; }

.thesis { width: min(1180px, calc(100% - 3rem)); margin: 0 auto 8rem; padding: clamp(2rem, 5vw, 4.5rem); display: grid; grid-template-columns: .65fr 1.35fr; gap: clamp(2rem, 7vw, 6rem); color: var(--white); background: radial-gradient(circle at 8% 0%, rgba(65,217,200,.16), transparent 32%), var(--night); border-radius: 2rem; box-shadow: var(--shadow); }
.thesis-label > p:last-child { max-width: 220px; margin: 0; color: #aebfca; font-size: .9rem; }
.thesis-copy h2 { max-width: 760px; margin: 0; font-family: Georgia, serif; font-size: clamp(2.3rem, 4.6vw, 4.6rem); font-weight: 500; line-height: 1.04; letter-spacing: -.045em; }
.thesis-copy > p { max-width: 760px; margin: 1.6rem 0 0; color: #becbd4; font-size: 1.08rem; }
.thesis-principles { display: flex; flex-wrap: wrap; gap: .55rem; margin-top: 2rem; }
.thesis-principles span { padding: .48rem .8rem; border: 1px solid rgba(65,217,200,.3); border-radius: 99px; color: #d7f5f1; font-size: .76rem; font-weight: 750; }

.section { padding: 0 max(1.5rem, calc((100vw - 1180px) / 2)) 8rem; }
.section-heading { max-width: 740px; margin-bottom: 3rem; }
.section-heading h2 { font-size: clamp(2.4rem, 4.6vw, 4.4rem); }
.section-heading > p:last-child { max-width: 650px; margin-top: 1.35rem; color: var(--muted); font-size: 1.08rem; }
.case-study { border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); box-shadow: 0 10px 35px rgba(7,19,31,.05); }
.case-featured { display: grid; grid-template-columns: 1.2fr .8fr; gap: 3rem; padding: clamp(1.5rem, 4vw, 4rem); background: linear-gradient(135deg, #fff 55%, #eefaf8); }
.case-meta { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem; }
.tag { display: inline-flex; padding: .34rem .66rem; border: 1px solid var(--line); border-radius: 99px; color: var(--muted); background: var(--white); font-size: .72rem; font-weight: 750; letter-spacing: .03em; }
.tag-health { color: #06665e; border-color: #b8e8e2; background: #e9faf7; }
.tag-blue { color: #315c9b; border-color: #cbdafa; background: #eef4ff; }
.tag-orange { color: #994f22; border-color: #f5cfb8; background: #fff2ea; }
.status { margin-left: auto; color: var(--muted); font-size: .76rem; }
.status i { display: inline-block; width: .48rem; height: .48rem; margin-right: .35rem; border-radius: 50%; background: var(--orange); }
.status-live i { background: var(--cyan-dark); box-shadow: 0 0 0 .22rem rgba(65,217,200,.16); }
.case-number { margin: 2rem 0 .3rem; color: var(--muted); font-size: .72rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.case-study h3 { margin: 0; font-size: clamp(2rem, 4vw, 3.8rem); letter-spacing: -.05em; line-height: 1.05; }
.case-lead { max-width: 650px; margin: .85rem 0 2.3rem; color: var(--muted); font-size: 1.12rem; }
.beta-note { max-width: 680px; margin: -1rem 0 2.3rem; padding: 1rem 1.15rem; border-left: 3px solid var(--cyan-dark); background: #f0faf8; }
.beta-note span { color: var(--cyan-dark); font-size: .7rem; font-weight: 850; letter-spacing: .1em; text-transform: uppercase; }
.beta-note p { margin: .3rem 0 0; color: var(--muted); font-size: .88rem; }
.case-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.8rem; }
.case-grid h4 { margin: 0 0 .5rem; font-size: .9rem; }
.case-grid p, .case-grid ul { margin: 0; color: var(--muted); font-size: .91rem; }
.case-grid ul { padding-left: 1.1rem; }
.case-grid li + li { margin-top: .35rem; }

.product-evidence { position: relative; min-height: 690px; display: grid; grid-template-columns: 1fr 1fr; align-items: start; gap: 1rem; padding: 2rem 1.25rem; border-radius: 1.5rem; background: var(--night); overflow: hidden; }
.product-evidence::before { content: ""; position: absolute; inset: -20% -30% auto auto; width: 300px; height: 300px; border-radius: 50%; background: rgba(65,217,200,.15); filter: blur(2px); }
.product-evidence figure, .ai-evidence figure { position: relative; z-index: 1; margin: 0; }
.product-evidence a, .ai-evidence a { display: block; border-radius: 1.5rem; overflow: hidden; box-shadow: 0 22px 40px rgba(0,0,0,.3); transition: transform .2s ease; }
.product-evidence a:hover, .product-evidence a:focus-visible, .ai-evidence a:hover, .ai-evidence a:focus-visible { transform: translateY(-4px); }
.product-evidence img, .ai-evidence img { display: block; width: 100%; height: auto; }
.evidence-main { margin-top: 2.5rem !important; transform: rotate(-2deg); }
.evidence-secondary { transform: rotate(2deg); }
.product-evidence figcaption, .ai-evidence figcaption { display: grid; margin-top: .9rem; color: var(--white); font-size: .78rem; }
.product-evidence figcaption span, .ai-evidence figcaption span { color: #95a8b7; font-size: .7rem; }
.demo-note { grid-column: 1 / -1; position: relative; z-index: 1; margin: .6rem 0 0; color: #9eb0bd; font-size: .7rem; text-align: center; }

.decision-story { grid-column: 1 / -1; margin: 2rem -1rem -1rem; padding: clamp(2rem, 5vw, 4.5rem); border-radius: 1.5rem; color: var(--white); background: var(--night); }
.decision-heading { display: grid; grid-template-columns: .5fr 1.5fr; gap: 2rem; align-items: start; }
.decision-heading .case-number { margin: .45rem 0 0; color: var(--cyan); }
.decision-heading h4 { max-width: 820px; margin: 0; font-size: clamp(1.9rem, 3.7vw, 3.7rem); line-height: 1.07; letter-spacing: -.045em; }
.decision-flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin: 3.5rem 0 4.5rem; border-top: 1px solid rgba(255,255,255,.15); border-bottom: 1px solid rgba(255,255,255,.15); }
.decision-flow article { padding: 1.8rem 1.4rem 2rem 0; }
.decision-flow article + article { padding-left: 1.4rem; border-left: 1px solid rgba(255,255,255,.15); }
.decision-flow span { color: var(--cyan); font-size: .7rem; font-weight: 850; }
.decision-flow h5 { margin: .75rem 0 .45rem; font-size: 1rem; }
.decision-flow p { margin: 0; color: #aebfca; font-size: .86rem; }
.ai-evidence { display: grid; grid-template-columns: minmax(180px, .62fr) minmax(260px, 1fr) minmax(180px, .62fr); gap: clamp(1.2rem, 3vw, 2.4rem); align-items: center; }
.ai-evidence a { border: 6px solid #111f2c; }
.ai-evidence-copy h4 { margin: 0; font-family: Georgia, serif; font-size: clamp(2rem, 3.6vw, 3.6rem); font-weight: 500; line-height: 1.05; letter-spacing: -.04em; }
.ai-evidence-copy > p:not(.eyebrow) { margin: 1.3rem 0 0; color: #b8c7d1; }
.measurement-card { margin-top: 1.8rem; padding: 1.25rem; border: 1px solid rgba(65,217,200,.22); border-radius: 1rem; background: rgba(65,217,200,.06); }
.measurement-card > span { color: var(--cyan); font-size: .72rem; font-weight: 850; letter-spacing: .08em; text-transform: uppercase; }
.measurement-card ul { margin: .75rem 0 0; padding-left: 1.1rem; color: #cfdae1; font-size: .84rem; }
.measurement-card li + li { margin-top: .3rem; }

.phone-stage { display: flex; flex-direction: column; align-items: center; justify-content: center; }
.phone { width: min(100%, 315px); padding: .9rem; border: 8px solid var(--night); border-radius: 2.5rem; color: var(--ink); background: #f4f7f8; box-shadow: 0 32px 55px rgba(7,19,31,.22); transform: rotate(2deg); }
.phone-top { display: flex; justify-content: space-between; padding: .2rem .4rem .9rem; font-size: .6rem; font-weight: 800; }
.app-greeting { padding: .4rem .4rem 1rem; }
.app-greeting small, .insight-card small { color: var(--cyan-dark); font-size: .55rem; font-weight: 850; letter-spacing: .1em; }
.app-greeting h4 { margin: .15rem 0; font-size: 1.3rem; letter-spacing: -.03em; }
.app-greeting p, .insight-card p { margin: 0; color: var(--muted); font-size: .7rem; }
.insight-card { display: flex; align-items: center; gap: .75rem; margin-bottom: .6rem; padding: .85rem; border: 1px solid #d7e2e3; border-radius: 1rem; background: var(--white); }
.featured-insight { color: var(--white); border: 0; background: var(--night-2); }
.featured-insight small { color: var(--cyan); }
.featured-insight p { color: #b8c7d2; }
.insight-card strong { display: block; font-size: .82rem; }
.insight-icon { display: grid; place-items: center; flex: 0 0 2.35rem; height: 2.35rem; border-radius: .8rem; color: var(--night); background: var(--cyan); font-size: 1.2rem; font-weight: 800; }
.metric-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: .6rem; margin-bottom: .6rem; }
.mini-metric { padding: .75rem; border: 1px solid #d7e2e3; border-radius: 1rem; background: var(--white); }
.mini-metric small, .mini-metric strong, .mini-metric span { display: block; }
.mini-metric small { color: var(--muted); font-size: .58rem; }
.mini-metric strong { margin: .15rem 0; font-size: .9rem; }
.mini-metric span { color: var(--cyan-dark); font-size: .58rem; font-weight: 800; }
.guidance { justify-content: space-between; }
.guidance > span { font-size: 1.5rem; }
.phone-nav { display: flex; justify-content: space-around; padding: .75rem .2rem .2rem; color: #84919b; font-size: .58rem; font-weight: 750; }
.phone-nav .active { color: var(--cyan-dark); }
.mockup-note { margin: 1.5rem 0 0; color: var(--muted); font-size: .72rem; }

.case-pair { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.25rem; margin-top: 1.25rem; }
.compact-card { padding: clamp(1.5rem, 3vw, 2.6rem); }
.compact-card h3 { font-size: clamp(2rem, 3vw, 3rem); }
.feature-list { margin: 0 0 1.8rem; padding: 1.2rem 0 0; list-style: none; border-top: 1px solid var(--line); }
.feature-list li { position: relative; padding: .65rem 0 .65rem 1.5rem; color: var(--muted); border-bottom: 1px solid var(--line); font-size: .92rem; }
.feature-list li::before { content: "+"; position: absolute; left: .1rem; color: var(--cyan-dark); font-weight: 850; }
.demonstrates { margin: 0; color: var(--muted); font-size: .85rem; }
.accent-card { background: linear-gradient(150deg, #fff 60%, #fff3eb); }

.experience-section { margin-top: 1rem; padding-top: 8rem; color: var(--white); background: var(--night); }
.light-heading .eyebrow { color: var(--cyan); }
.light-heading { max-width: 820px; }
.timeline { border-top: 1px solid rgba(255,255,255,.14); }
.timeline article { display: grid; grid-template-columns: 180px 1fr; gap: 3rem; padding: 2.7rem 0; border-bottom: 1px solid rgba(255,255,255,.14); }
.timeline-date { color: var(--cyan); font-size: .78rem; font-weight: 800; letter-spacing: .1em; }
.role-company { margin: 0 0 .2rem; color: #9cb0bf; font-size: .82rem; font-weight: 750; text-transform: uppercase; letter-spacing: .06em; }
.timeline h3 { margin: 0 0 .75rem; font-size: clamp(1.5rem, 3vw, 2.25rem); letter-spacing: -.035em; }
.timeline-copy > p:not(.role-company) { max-width: 730px; margin: 0; color: #b9c7d1; }
.pill-row { display: flex; flex-wrap: wrap; gap: .45rem; margin-top: 1.25rem; }
.pill-row span { padding: .3rem .6rem; border: 1px solid rgba(255,255,255,.15); border-radius: 99px; color: #c7d3db; font-size: .7rem; }
.leadership-note { max-width: 780px; margin: 5rem 0 0 auto; padding-left: 2rem; border-left: 3px solid var(--cyan); }
.leadership-note > p:first-child { margin: 0 0 .5rem; color: var(--cyan); font-size: .72rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.leadership-note h3 { margin: 0; font-size: clamp(1.7rem, 3vw, 2.6rem); }
.leadership-note > p:last-child { color: #b9c7d1; }

.approach-section { padding-top: 8rem; }
.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; }
.principles article { padding: 2rem 0; border-top: 2px solid var(--ink); }
.principles span { color: var(--cyan-dark); font-size: .76rem; font-weight: 850; }
.principles h3 { margin: 2rem 0 .6rem; font-size: 1.25rem; letter-spacing: -.02em; }
.principles p { margin: 0; color: var(--muted); }

.closing { margin: 0 max(1.5rem, calc((100vw - 1180px) / 2)) 2rem; padding: clamp(2rem, 6vw, 5rem); border-radius: 2rem; color: var(--white); background: radial-gradient(circle at 90% 10%, rgba(65,217,200,.28), transparent 34%), var(--night-2); }
.closing .eyebrow { color: var(--cyan); }
.closing h2 { max-width: 900px; font-size: clamp(2.6rem, 5vw, 5rem); }
.closing > p:not(.eyebrow) { margin: 1.4rem 0 2rem; color: #b9c7d1; }
footer { width: min(1180px, calc(100% - 3rem)); margin: 0 auto; padding: 2rem 0 3rem; display: flex; justify-content: space-between; gap: 2rem; color: var(--muted); font-size: .78rem; }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding-top: 3rem; }
  .signal-card { display: grid; grid-template-columns: 1fr 1fr; align-items: center; }
  .signal-label { grid-column: 1 / -1; }
  .signal-orbit { margin: 1.5rem auto; }
  .proof-strip { grid-template-columns: repeat(2, 1fr); }
  .proof-strip div:nth-child(2) { border-right: 0; }
  .proof-strip div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .case-featured { grid-template-columns: 1fr; }
  .thesis { grid-template-columns: 1fr; }
  .decision-heading { grid-template-columns: 1fr; gap: .8rem; }
  .decision-flow { grid-template-columns: repeat(2, 1fr); }
  .decision-flow article:nth-child(3) { border-left: 0; }
  .decision-flow article:nth-child(n+3) { border-top: 1px solid rgba(255,255,255,.15); }
  .phone { margin-top: 1rem; }
}

@media (max-width: 680px) {
  .site-header { width: min(100% - 2rem, 1180px); min-height: 70px; }
  nav { gap: .85rem; }
  nav a { font-size: .78rem; }
  .brand > span:last-child { display: none; }
  .hero { width: min(100% - 2rem, 1180px); min-height: auto; padding: 4rem 0 5rem; }
  .hero h1 { font-size: clamp(3rem, 14vw, 4.6rem); }
  .signal-card { display: block; }
  .proof-strip { width: min(100% - 2rem, 1180px); margin-bottom: 5.5rem; }
  .proof-strip div { padding: 1rem; }
  .section { padding-right: 1rem; padding-left: 1rem; padding-bottom: 5.5rem; }
  .case-grid, .case-pair, .principles { grid-template-columns: 1fr; }
  .thesis { width: min(100% - 2rem, 1180px); margin-bottom: 5.5rem; padding: 2rem 1.4rem; }
  .product-evidence { min-height: auto; padding: 1.2rem .8rem; gap: .65rem; }
  .product-evidence figcaption { font-size: .68rem; }
  .product-evidence figcaption span { display: none; }
  .decision-story { margin: 1.2rem -.2rem -.2rem; padding: 2rem 1.15rem; }
  .decision-flow { grid-template-columns: 1fr; margin: 2.5rem 0 3rem; }
  .decision-flow article, .decision-flow article + article { padding: 1.2rem 0; border-left: 0; border-top: 1px solid rgba(255,255,255,.15); }
  .decision-flow article:first-child { border-top: 0; }
  .ai-evidence { grid-template-columns: 1fr 1fr; align-items: start; }
  .ai-evidence-copy { grid-column: 1 / -1; grid-row: 1; }
  .case-grid { gap: 1.4rem; }
  .case-featured { padding: 1.2rem; }
  .case-meta .status { width: 100%; margin: .3rem 0 0; }
  .timeline article { grid-template-columns: 1fr; gap: .75rem; }
  .experience-section, .approach-section { padding-top: 5.5rem; }
  .closing { margin-right: 1rem; margin-left: 1rem; padding: 2rem 1.4rem; }
  footer { width: min(100% - 2rem, 1180px); flex-direction: column; gap: .4rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}