:root {
  --ink: #2b2027;
  --navy: #4b2138;
  --blue: #8a3d61;
  --gold: #c79b79;
  --paper: #fbf8f9;
  --white: #fffdfd;
  --muted: #70636b;
  --line: #e7dadd;
  --soft-blue: #f5e8ed;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
}
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
.skip-link { position: absolute; left: -999px; top: 0; }
.skip-link:focus { left: 1rem; top: 1rem; z-index: 20; padding: .7rem 1rem; background: white; color: black; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem clamp(1.25rem, 4vw, 4.5rem);
  background: rgba(251, 248, 249, .94);
  border-bottom: 1px solid rgba(75, 33, 56, .12);
  backdrop-filter: blur(16px);
}
.brand { display: flex; gap: .75rem; align-items: center; font-weight: 750; text-decoration: none; }
.brand-mark { display: grid; place-items: center; width: 2.25rem; height: 2.25rem; border-radius: 50%; background: var(--navy); color: white; font-size: .78rem; letter-spacing: .05em; }
nav { display: flex; align-items: center; gap: 1.5rem; }
nav a { color: #35414c; text-decoration: none; font-size: .94rem; font-weight: 650; }
nav a:hover, nav a:focus-visible { color: var(--blue); }
.nav-cta { padding: .55rem .9rem; border: 1px solid var(--navy); border-radius: 999px; }

main { overflow: hidden; }
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, .55fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
  padding: clamp(4rem, 9vw, 7.5rem) clamp(1.25rem, 6vw, 7rem) 4rem;
  background:
    radial-gradient(circle at 86% 12%, rgba(196, 126, 154, .22), transparent 24rem),
    radial-gradient(circle at 8% 82%, rgba(199, 155, 121, .13), transparent 22rem),
    linear-gradient(135deg, #fffdfd 0%, #f6ebef 100%);
}
.eyebrow { margin: 0 0 .7rem; color: var(--blue); font-size: .79rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
h1, h2, h3 { margin-top: 0; line-height: 1.12; letter-spacing: -.025em; }
h1 { max-width: 900px; margin-bottom: 1.5rem; font-size: clamp(2.65rem, 6vw, 5.6rem); font-weight: 780; }
h2 { margin-bottom: 1rem; font-size: clamp(2rem, 4vw, 3.5rem); }
h3 { margin-bottom: .75rem; font-size: 1.45rem; }
.hero-intro { max-width: 790px; margin: 0; color: #584952; font-size: clamp(1.08rem, 1.8vw, 1.3rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2rem; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 3rem; padding: .72rem 1.15rem; border-radius: .35rem; font-weight: 750; text-decoration: none; }
.button.primary { background: var(--navy); color: white; }
.button.primary:hover { background: var(--blue); }
.button.secondary { border: 1px solid #b899a7; background: var(--white); }
.travel-note { margin: 1rem 0 0; color: var(--muted); font-size: .92rem; }
.program-map { padding: 1.5rem; border: 1px solid rgba(75, 33, 56, .16); border-radius: 1.25rem; background: rgba(255,253,253,.86); box-shadow: 0 1.4rem 3.5rem rgba(75,33,56,.12); }
.program-map p { margin: 0; color: var(--muted); }
.program-map .map-label { margin-bottom: 1.2rem; color: var(--blue); font-size: .75rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.map-core { display: grid; place-items: center; min-height: 6.5rem; padding: 1rem; border-radius: 50%; background: var(--navy); color: white; font-size: 1.15rem; font-weight: 800; text-align: center; }
.map-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .55rem; margin: .8rem 0 1rem; }
.map-grid span { padding: .6rem; border: 1px solid var(--line); border-radius: .35rem; background: var(--soft-blue); font-size: .82rem; font-weight: 700; text-align: center; }

.proof-strip { display: grid; grid-template-columns: repeat(4, 1fr); padding: 0 clamp(1.25rem, 6vw, 7rem); background: var(--navy); color: white; }
.proof-strip div { padding: 1.5rem 1.25rem; border-right: 1px solid rgba(255,255,255,.14); }
.proof-strip div:last-child { border-right: 0; }
.proof-strip strong, .proof-strip span { display: block; }
.proof-strip strong { margin-bottom: .2rem; color: #f0c9d7; font-size: 1.35rem; }
.proof-strip span { color: #eadfe4; font-size: .88rem; }

.section { padding: clamp(4rem, 8vw, 7rem) clamp(1.25rem, 6vw, 7rem); }
.section-heading { display: grid; grid-template-columns: 1.25fr .75fr; gap: 3rem; align-items: end; margin-bottom: 2.4rem; }
.section-heading h2 { margin-bottom: 0; }
.section-heading > p { margin: 0; color: var(--muted); }
.filters { display: flex; flex-wrap: wrap; gap: .65rem; margin-bottom: 1.5rem; }
.filter { padding: .62rem .9rem; border: 1px solid #c6adb7; border-radius: 999px; background: transparent; color: #5d4551; font: inherit; font-size: .9rem; font-weight: 700; cursor: pointer; }
.filter:hover, .filter:focus-visible, .filter.active { border-color: var(--navy); background: var(--navy); color: white; }
.case-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.case { padding: clamp(1.4rem, 3vw, 2rem); border: 1px solid var(--line); border-radius: 1rem; background: var(--white); box-shadow: 0 .5rem 1.8rem rgba(75,33,56,.045); }
.case.featured { grid-column: 1 / -1; display: grid; grid-template-columns: .72fr 1.28fr; column-gap: 3rem; }
.case.featured .case-topline, .case.featured h3, .case.featured .case-summary { grid-column: 1; }
.case.featured .case-facts, .case.featured .case-result { grid-column: 2; }
.case.featured .case-facts { grid-row: 1 / span 3; }
.case-topline { display: flex; flex-wrap: wrap; gap: .55rem; margin-bottom: 1rem; color: var(--blue); font-size: .78rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.case-topline span + span::before { content: "·"; margin-right: .55rem; color: var(--gold); }
.case-summary { color: #665660; }
.case-facts { margin: 1.2rem 0; }
.case-facts div { padding: .8rem 0; border-top: 1px solid var(--line); }
.case-facts dt { margin-bottom: .2rem; color: var(--muted); font-size: .76rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.case-facts dd { margin: 0; }
.case-result { margin: 0; padding-top: .9rem; border-top: 2px solid var(--gold); }
.case[hidden] { display: none; }
.empty-state { padding: 2rem; border: 1px dashed var(--line); text-align: center; }

.approach { background: var(--white); }
.approach-grid { display: grid; grid-template-columns: repeat(4, 1fr); margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.approach-grid li { padding: 1.5rem 1.4rem; border-right: 1px solid var(--line); }
.approach-grid li:last-child { border-right: 0; }
.approach-grid span { display: block; margin-bottom: 2.5rem; color: var(--gold); font-size: .85rem; font-weight: 900; }
.approach-grid h3 { font-size: 1.2rem; }
.approach-grid p { margin-bottom: 0; color: var(--muted); }

.ai-adoption {
  display: grid;
  grid-template-columns: .72fr 1.28fr;
  gap: clamp(2rem, 7vw, 7rem);
  background:
    radial-gradient(circle at 5% 15%, rgba(196, 126, 154, .2), transparent 22rem),
    var(--navy);
  color: white;
}
.ai-adoption .eyebrow { color: #f0c9d7; }
.ai-adoption h2 { max-width: 620px; }
.ai-copy > p { margin-top: 0; color: #f1e9ed; font-size: 1.06rem; }
.ai-principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: .75rem; margin: 2rem 0 0; padding: 0; list-style: none; }
.ai-principles li { padding: 1rem; border: 1px solid rgba(255,255,255,.2); border-radius: .75rem; background: rgba(255,255,255,.06); }
.ai-principles strong, .ai-principles span { display: block; }
.ai-principles strong { margin-bottom: .35rem; color: #f0c9d7; }
.ai-principles span { color: #eadfe4; font-size: .9rem; }

.mentorship { background: var(--soft-blue); }
.mentorship-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.mentorship-grid article { padding: clamp(1.4rem, 3vw, 2rem); border: 1px solid #dfcbd3; border-radius: 1rem; background: var(--white); box-shadow: 0 .5rem 1.8rem rgba(75,33,56,.045); }
.mentorship-grid article > span { display: block; margin-bottom: 2rem; color: var(--gold); font-size: .85rem; font-weight: 900; }
.mentorship-grid h3 { font-size: 1.25rem; }
.mentorship-grid p { margin-bottom: 0; color: var(--muted); }
.text-link { display: inline-flex; gap: .45rem; align-items: center; margin-top: 1.5rem; color: var(--navy); font-weight: 800; text-underline-offset: .2rem; }
.text-link:hover, .text-link:focus-visible { color: var(--blue); }

.about { display: grid; grid-template-columns: .75fr 1.25fr; gap: clamp(2rem, 7vw, 7rem); }
.about-copy > p { margin-top: 0; font-size: 1.08rem; }
.credentials { display: grid; grid-template-columns: 1fr 1fr; gap: .8rem; margin-top: 2rem; }
.credentials div { padding: 1rem; border-top: 2px solid var(--blue); border-radius: 0 0 .65rem .65rem; background: var(--white); }
.credentials strong, .credentials span { display: block; }
.credentials strong { margin-bottom: .45rem; }
.credentials span { color: var(--muted); }

.contact { margin: 0 clamp(1.25rem, 6vw, 7rem) 4rem; padding: clamp(2.5rem, 5vw, 4.5rem); border-radius: 1rem; background: var(--navy); color: white; }
.contact .eyebrow { color: #f0c9d7; }
.contact h2 { max-width: 900px; }
.contact p:not(.eyebrow) { max-width: 700px; color: #eadfe4; }
.button.light { margin-top: 1rem; background: white; color: var(--navy); }

footer { display: flex; justify-content: space-between; gap: 1rem; padding: 1.5rem clamp(1.25rem, 6vw, 7rem); border-top: 1px solid var(--line); color: var(--muted); font-size: .85rem; }

:focus-visible { outline: 3px solid var(--gold); outline-offset: 3px; }

@media (max-width: 920px) {
  nav a:not(.nav-cta) { display: none; }
  .hero, .section-heading, .ai-adoption, .about { grid-template-columns: 1fr; }
  .program-map { max-width: 520px; }
  .proof-strip { grid-template-columns: 1fr 1fr; }
  .proof-strip div:nth-child(2) { border-right: 0; }
  .proof-strip div:nth-child(-n+2) { border-bottom: 1px solid rgba(255,255,255,.14); }
  .case.featured { display: block; }
  .approach-grid { grid-template-columns: 1fr 1fr; }
  .approach-grid li:nth-child(2) { border-right: 0; }
  .approach-grid li:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
}

@media (max-width: 640px) {
  .site-header { padding: .85rem 1rem; }
  .brand > span:last-child { display: none; }
  .hero { padding-top: 3rem; }
  h1 { font-size: clamp(2.35rem, 13vw, 3.5rem); }
  .proof-strip, .case-grid, .approach-grid, .credentials, .mentorship-grid { grid-template-columns: 1fr; }
  .ai-principles { grid-template-columns: 1fr; }
  .proof-strip div { border-right: 0; border-bottom: 1px solid rgba(255,255,255,.14); }
  .proof-strip div:last-child { border-bottom: 0; }
  .approach-grid li { border-right: 0; border-bottom: 1px solid var(--line); }
  .approach-grid li:last-child { border-bottom: 0; }
  footer { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}