:root {
  --navy: #063f65;
  --navy-deep: #022d4b;
  --blue: #0b72a8;
  --sky: #d7eff8;
  --sky-soft: #f2fbff;
  --aqua: #00cad2;
  --coral: #ff4869;
  --ink: #073d5d;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body { margin: 0; color: var(--ink); background: #fff; font-family: Arial, Helvetica, sans-serif; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, a { -webkit-tap-highlight-color: transparent; }

.section-shell { width: min(1160px, calc(100% - 48px)); margin-inline: auto; }
.site-header {
  position: sticky; top: 0; z-index: 50; height: 86px;
  padding: 0 max(24px, calc((100vw - 1160px) / 2));
  display: flex; align-items: center; gap: 32px;
  background: rgba(255,255,255,.96); border-bottom: 1px solid rgba(6,63,101,.10);
  backdrop-filter: blur(18px);
}
.brand { margin-right: auto; }
.brand img { width: 166px; height: 64px; object-fit: contain; }
.site-header nav { display: flex; align-items: center; gap: 30px; }
.site-header nav a { font-size: 13px; font-weight: 700; color: var(--navy); position: relative; }
.site-header nav a::after { content: ""; position: absolute; left: 0; bottom: -7px; width: 0; height: 2px; background: var(--coral); transition: width .25s ease; }
.site-header nav a:hover::after, .site-header nav a:focus-visible::after { width: 100%; }
.nav-cta, .button {
  display: inline-flex; align-items: center; justify-content: center; min-height: 48px;
  padding: 0 22px; border-radius: 999px; font-size: 13px; font-weight: 800;
  letter-spacing: .01em; transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.nav-cta { min-height: 42px; color: white; background: var(--navy); }
.button:hover, .nav-cta:hover { transform: translateY(-2px); }
.nav-cta:hover { box-shadow: 0 10px 24px rgba(6,63,101,.2); }

.hero {
  position: relative;
  min-height: 700px;
  overflow: hidden;
  background:
    radial-gradient(circle at 76% 30%, rgba(255,255,255,.78), transparent 25%),
    linear-gradient(130deg, #e7f7fc 0%, var(--sky) 55%, #c5e8f4 100%);
}
.hero-shell { min-height: 700px; display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 60px; padding-top: 72px; }
.eyebrow { margin: 0 0 18px; color: var(--navy); font-size: 12px; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.eyebrow.coral { color: var(--coral); }
.eyebrow.aqua { color: #47f1ef; }
.hero h1, .section h2 { margin: 0; color: var(--navy); font-size: clamp(56px, 7vw, 92px); line-height: .94; letter-spacing: -.055em; }
.hero h1 span { color: var(--coral); }
.hero-lede { max-width: 610px; margin: 28px 0 0; font-size: 19px; line-height: 1.65; color: #315e78; }
.hero-actions { display: flex; align-items: center; gap: 28px; margin-top: 34px; }
.button-primary { background: var(--navy); color: #fff; box-shadow: 0 12px 30px rgba(3,57,91,.16); }
.button-primary:hover { background: var(--blue); box-shadow: 0 16px 32px rgba(3,57,91,.22); }
.text-link { font-size: 14px; font-weight: 800; border-bottom: 1px solid #9bb9c8; padding-bottom: 5px; }
.hero-visual { position: relative; align-self: stretch; min-height: 628px; display: grid; place-items: end center; isolation: isolate; }
.hero-photo-wrap { position: absolute; z-index: 2; left: 50%; bottom: 0; width: min(500px, 100%); height: 610px; display: flex; align-items: flex-end; justify-content: center; transform: translateX(-50%); }
.hero-portrait { width: auto; height: 100%; max-width: none; object-fit: contain; object-position: center bottom; filter: drop-shadow(0 28px 34px rgba(4,55,84,.18)); will-change: transform; }
.hero-swirl { position: absolute; z-index: 1; border: 2px solid rgba(6,63,101,.16); border-radius: 50%; pointer-events: none; }
.swirl-one { width: 510px; height: 330px; right: -40px; top: 74px; transform: rotate(-18deg); border-color: rgba(6,63,101,.18) transparent rgba(6,63,101,.18) rgba(6,63,101,.18); }
.swirl-two { width: 420px; height: 250px; right: 18px; top: 145px; transform: rotate(14deg); border-color: rgba(255,72,105,.28) rgba(255,72,105,.28) transparent rgba(255,72,105,.28); }
.swirl-three { width: 300px; height: 180px; right: 86px; top: 214px; transform: rotate(-10deg); border-color: rgba(0,202,210,.40) transparent rgba(0,202,210,.40) rgba(0,202,210,.40); }

.marquee { overflow: hidden; background: var(--coral); color: white; }
.marquee .marquee-track { padding-block: 17px; display: flex; justify-content: center; flex-wrap: wrap; gap: 14px 34px; align-items: center; text-align: center; font-size: 12px; font-weight: 900; letter-spacing: .12em; }
.marquee i { color: #ffdce3; font-style: normal; }

.section { position: relative; padding-block: 120px; }
.section-number { position: absolute; top: 54px; right: 1%; color: rgba(8,78,115,.07); font-size: clamp(120px,17vw,240px); line-height: 1; font-weight: 900; letter-spacing: -.08em; }
.speak-section { display: grid; grid-template-columns: .9fr 1.1fr; gap: 90px; align-items: center; }
.speak-photo { position: relative; }
.speak-photo > img { width: 100%; max-width: 440px; aspect-ratio: 190/260; object-fit: cover; object-position: center top; border-radius: 18px 130px 18px 18px; box-shadow: 24px 24px 0 var(--sky); }
.photo-accent { position: absolute; right: 2%; bottom: 16%; padding: 18px; color: white; background: var(--coral); font-size: 13px; line-height: 1.35; font-weight: 900; letter-spacing: .08em; transform: rotate(3deg); box-shadow: 8px 8px 0 var(--aqua); }
.section h2 { font-size: clamp(48px, 5vw, 74px); line-height: 1.02; }
.section h2 em { color: var(--coral); font-family: Georgia, 'Times New Roman', serif; font-weight: 400; }
.section-copy > p:not(.eyebrow), .blueprint-intro > p:not(.eyebrow), .letters-copy > p { max-width: 590px; margin: 27px 0; color: #4a6b7d; font-size: 17px; line-height: 1.7; }
.topic-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 22px; margin: 30px 0 34px; border-top: 1px solid #c9dce5; }
.topic-list span { padding: 15px 0; border-bottom: 1px solid #c9dce5; font-size: 13px; font-weight: 800; }
.topic-list span::before { content: "✦"; margin-right: 9px; color: var(--coral); }
.button-coral { color: white; background: var(--coral); box-shadow: 0 12px 30px rgba(255,72,105,.18); }

.simulation-section { overflow: hidden; color: white; background: radial-gradient(circle at 92% 15%, rgba(0,202,210,.24), transparent 30%), linear-gradient(135deg, var(--navy-deep), #075e87); }
.simulation-section::before { content: ""; position: absolute; inset: 0; opacity: .12; background-image: linear-gradient(rgba(255,255,255,.25) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.25) 1px,transparent 1px); background-size: 46px 46px; mask-image: linear-gradient(to right, black, transparent 72%); }
.simulation-grid { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.light-copy h2 { color: white; }
.light-copy h2 em { color: #64eeec; }
.light-copy > p:not(.eyebrow) { color: #c8e8f4; }
.pill-row { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 28px; }
.pill-row span { padding: 9px 13px; border: 1px solid rgba(255,255,255,.25); border-radius: 99px; font-size: 11px; font-weight: 800; }
.flow-card { padding: 25px; border: 1px solid rgba(255,255,255,.18); border-radius: 24px; background: rgba(255,255,255,.10); box-shadow: 0 24px 80px rgba(0,0,0,.2); backdrop-filter: blur(12px); }
.flow-head { display: flex; justify-content: space-between; padding-bottom: 20px; border-bottom: 1px solid rgba(255,255,255,.16); font-size: 10px; font-weight: 900; letter-spacing: .14em; }
.live { color: #67f6f2; }
.live i { display: inline-block; width: 7px; height: 7px; margin-right: 6px; border-radius: 50%; background: #67f6f2; box-shadow: 0 0 0 5px rgba(103,246,242,.12); }
.flow-stage { display: grid; gap: 14px; padding: 24px 0; }
.flow-stage div { display: grid; grid-template-columns: 48px 1fr auto; align-items: center; gap: 12px; padding: 15px; border-radius: 14px; background: rgba(255,255,255,.09); }
.flow-stage b { color: #5fe4e5; font-size: 13px; }
.flow-stage span { font-size: 15px; font-weight: 900; }
.flow-stage small { color: #a9cfdf; }
.flow-meter { height: 8px; border-radius: 9px; overflow: hidden; background: rgba(255,255,255,.1); }
.flow-meter span { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg,var(--aqua),#ff7b98); }
.flow-card > p { margin: 16px 0 0; color: #cce7f1; font-size: 12px; }

.blueprint-section { display: grid; grid-template-columns: .92fr 1.08fr; gap: 90px; align-items: start; }
.blueprint-steps { position: relative; padding-top: 12px; }
.blueprint-steps::before { content: ""; position: absolute; left: 30px; top: 40px; bottom: 40px; width: 2px; background: linear-gradient(var(--coral),var(--aqua)); }
.blueprint-steps article { position: relative; display: grid; grid-template-columns: 62px 1fr; gap: 22px; align-items: start; padding: 0 0 30px; }
.blueprint-steps article > span { z-index: 1; display: grid; place-items: center; width: 62px; height: 62px; border-radius: 50%; color: white; background: var(--navy); border: 8px solid white; box-shadow: 0 0 0 1px #bdd3de; font-size: 11px; font-weight: 900; }
.blueprint-steps article:nth-child(2) > span, .blueprint-steps article:nth-child(4) > span { background: var(--coral); }
.blueprint-steps h3 { margin: 7px 0 7px; font-size: 22px; }
.blueprint-steps p { margin: 0; color: #557486; line-height: 1.55; }

.letters-section { padding-top: 0; background: var(--sky-soft); overflow: hidden; }
.letters-feature { position: relative; min-height: 500px; padding-block: 40px; display: grid; place-items: center; overflow: hidden; }
.letters-feature > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.letters-feature::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(2,45,75,.18), transparent 42%, rgba(255,72,105,.08)); }
.letters-panel { position: relative; z-index: 1; width: min(610px, calc(100% - 40px)); padding: 48px 54px; border-radius: 24px; background: rgba(255,255,255,.96); box-shadow: 0 24px 70px rgba(2,45,75,.20); text-align: center; backdrop-filter: blur(10px); }
.letters-panel .eyebrow { margin-bottom: 12px; }
.letters-panel h2 { font-size: clamp(40px, 5vw, 62px); line-height: 1.02; }
.letters-intro { max-width: 490px; margin: 22px auto; color: #4a6b7d; font-size: 16px; line-height: 1.65; }
.letters-topics { display: flex; justify-content: center; flex-wrap: wrap; gap: 8px; margin: 0 0 24px; }
.letters-topics span { padding: 7px 11px; border: 1px solid #c9dce5; border-radius: 99px; color: var(--navy); font-size: 10px; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.letter-cards { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; margin-top: 54px; }
.letter-cards article { min-height: 265px; padding: 28px; border-radius: 20px; background: white; border-top: 5px solid var(--coral); box-shadow: 0 16px 40px rgba(7,63,96,.07); transition: transform .2s ease; }
.letter-cards article:nth-child(2) { border-top-color: var(--aqua); transform: translateY(18px); }
.letter-cards article:nth-child(3) { border-top-color: var(--navy); }
.letter-cards article:hover { transform: translateY(-5px); }
.letter-cards article:nth-child(2):hover { transform: translateY(13px); }
.letter-cards span { color: var(--coral); font-size: 10px; font-weight: 900; letter-spacing: .14em; }
.letter-cards h3 { margin: 25px 0 12px; font-size: 23px; line-height: 1.15; }
.letter-cards p { color: #5b7888; font-size: 14px; line-height: 1.6; }
.letter-cards a { display: inline-block; margin-top: 13px; font-size: 12px; font-weight: 900; border-bottom: 1px solid; }

footer { color: white; background: var(--navy-deep); }
.footer-main { min-height: 270px; padding-block: 62px; display: flex; align-items: center; justify-content: space-between; gap: 50px; }
.footer-main img { width: 150px; height: 60px; object-fit: contain; filter: invert(1) grayscale(1) brightness(4); }
.footer-main p { color: #9ec4d6; font-size: 13px; }
.footer-cta { max-width: 520px; font-size: clamp(30px,4vw,52px); line-height: 1.05; letter-spacing: -.04em; font-weight: 800; }
.footer-cta span { color: var(--coral); }
.footer-bottom { padding-block: 20px; display: flex; justify-content: space-between; border-top: 1px solid rgba(255,255,255,.12); color: #8eb3c5; font-size: 11px; }
.footer-links, .linkedin-link { display: flex; align-items: center; gap: 20px; }
.linkedin-link { gap: 7px; color: white; font-weight: 800; }
.linkedin-link svg { width: 18px; height: 18px; fill: var(--aqua); }

@supports (animation-timeline: scroll()) {
  .hero-portrait {
    animation: portrait-parallax linear both;
    animation-timeline: scroll(root);
    animation-range: 0 760px;
  }
  @keyframes portrait-parallax {
    from { transform: translateY(0) scale(1.015); }
    to { transform: translateY(34px) scale(1.015); }
  }
}

@media (max-width: 900px) {
  .site-header { padding-inline: 22px; gap: 18px; }
  .site-header nav { display: none; }
  .brand img { width: 128px; }
  .hero-shell { grid-template-columns: 1fr; padding-top: 58px; text-align: center; }
  .hero-lede { margin-inline: auto; }
  .hero-actions { justify-content: center; }
  .hero-visual { min-height: 520px; }
  .hero-photo-wrap { height: 520px; }
  .speak-section, .simulation-grid, .blueprint-section { grid-template-columns: 1fr; gap: 58px; }
  .speak-photo { order: 2; max-width: 500px; }
  .section-copy { order: 1; }
  .section-number { top: 20px; }
  .letter-cards { grid-template-columns: 1fr; }
  .letter-cards article:nth-child(2) { transform: none; }
}

@media (max-width: 600px) {
  html { scroll-padding-top: 70px; }
  .section-shell { width: min(100% - 32px, 1160px); }
  .site-header { height: 68px; padding-inline: 16px; }
  .brand img { width: 114px; height: 44px; }
  .nav-cta { min-height: 38px; padding-inline: 15px; font-size: 11px; }
  .hero, .hero-shell { min-height: auto; }
  .hero-shell { padding-block: 55px 0; gap: 26px; }
  .hero h1 { font-size: 51px; }
  .hero-lede { font-size: 16px; }
  .hero-actions { flex-direction: column; gap: 18px; }
  .hero-visual { min-height: 440px; }
  .hero-photo-wrap { width: 96%; height: 440px; }
  .swirl-one { width: 390px; height: 250px; right: -60px; top: 68px; }
  .swirl-two { width: 320px; height: 190px; right: 10px; top: 120px; }
  .swirl-three { width: 230px; height: 140px; right: 54px; top: 180px; }
  .marquee .marquee-track { gap: 10px 20px; padding-block: 15px; }
  .section { padding-block: 84px; }
  .section h2 { font-size: 46px; }
  .speak-section { gap: 64px; }
  .photo-accent { right: -4px; font-size: 11px; }
  .topic-list { grid-template-columns: 1fr; }
  .flow-card { padding: 18px; }
  .flow-stage div { grid-template-columns: 35px 1fr; }
  .flow-stage small { display: none; }
  .blueprint-steps article { gap: 15px; }
  .letters-feature { min-height: 540px; }
  .letters-panel { padding: 38px 24px; }
  .letters-panel h2 { font-size: 42px; }
  .footer-main { align-items: flex-start; flex-direction: column; }
  .footer-bottom { gap: 20px; align-items: center; }
  .footer-links { gap: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
  .hero-portrait { animation: none !important; transform: none !important; }
}