:root {
  --cobalt: #0759ed;
  --cobalt-bright: #0b67ff;
  --ink: #172027;
  --ink-soft: #202a31;
  --stone: #d9d5cd;
  --paper: #f7f6f2;
  --white: #ffffff;
  --muted: #66717a;
  --line: rgba(13, 27, 39, .15);
  --max: 1240px;
  --serif: Georgia, 'Times New Roman', serif;
  --sans: Inter, 'Avenir Next', Avenir, 'Helvetica Neue', Arial, sans-serif;
}

* { box-sizing: border-box; }
html { max-width: 100%; overflow-x: hidden; scroll-behavior: smooth; }
body { width: 100%; max-width: 100%; min-width: 0; margin: 0; overflow-x: hidden; background: var(--paper); color: var(--ink); font-family: var(--sans); -webkit-font-smoothing: antialiased; }
main, section, header, footer { max-width: 100%; }
img, svg { max-width: 100%; }
body.menu-open { overflow: hidden; }
a { color: inherit; }
button, input { font: inherit; }
button { color: inherit; }
.shell { width: min(calc(100% - 48px), var(--max)); margin-inline: auto; }
.skip-link { position: fixed; z-index: 1000; left: 12px; top: -80px; padding: 12px 18px; background: var(--white); color: var(--ink); }
.skip-link:focus { top: 12px; }

.site-header { position: fixed; z-index: 50; top: 0; left: 0; right: 0; width: 100%; height: 92px; display: grid; grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr); align-items: center; padding: 0 max(24px, calc((100vw - var(--max)) / 2)); color: var(--ink); background: rgba(247,246,242,.96); border-bottom: 1px solid rgba(23,32,39,.12); transition: height .25s, box-shadow .25s; }
.site-header.is-scrolled { height: 76px; box-shadow: 0 12px 32px rgba(0,0,0,.1); backdrop-filter: blur(14px); }
.brand { display: inline-flex; align-items: center; gap: 13px; max-width: 100%; min-width: 0; text-decoration: none; }
.brand img { display: block; width: 160px; height: auto; flex: none; }
.brand-copy { display: flex; min-width: 0; flex-direction: column; gap: 6px; padding-left: 16px; border-left: 1px solid rgba(23,32,39,.25); white-space: nowrap; }
.brand-copy strong { color: var(--ink); font-size: 11px; font-weight: 750; letter-spacing: .14em; line-height: 1.1; }
.brand-copy small { color: #58656d; font-size: 9px; letter-spacing: .01em; line-height: 1.1; }
.desktop-nav { display: flex; gap: 34px; }
.desktop-nav a { position: relative; padding: 10px 0; color: rgba(23,32,39,.72); text-decoration: none; font-size: 13px; }
.desktop-nav a::after { content: ''; position: absolute; left: 0; bottom: 4px; width: 0; height: 1px; background: var(--cobalt-bright); transition: width .2s; }
.desktop-nav a:hover::after, .desktop-nav a:focus-visible::after { width: 100%; }
.header-cta { justify-self: end; border: 1px solid var(--ink); padding: 12px 16px; text-decoration: none; font-size: 12px; letter-spacing: .03em; transition: background .2s, color .2s; }
.header-cta:hover { background: var(--cobalt); border-color: var(--cobalt); color: var(--white); }
.menu-button, .mobile-nav { display: none; }

.hero { position: relative; min-height: 660px; height: 100svh; max-height: 800px; overflow: hidden; display: flex; flex-direction: column; justify-content: center; padding: 92px 0 118px; color: var(--white); background: linear-gradient(135deg, #064ac9 0%, #0865ff 44%, #033798 100%); }
.hero::after { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(0,38,120,.92) 0%, rgba(1,55,160,.76) 44%, rgba(1,39,105,.08) 72%), linear-gradient(0deg, rgba(3,18,48,.82), transparent 34%); pointer-events: none; }
.hero-grid { position: absolute; inset: 0; opacity: .14; background-image: linear-gradient(rgba(255,255,255,.14) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.14) 1px, transparent 1px); background-size: 80px 80px; mask-image: linear-gradient(90deg, transparent, #000); }
.hero-visual { position: absolute; z-index: 0; top: 92px; right: 0; width: 59%; height: 66%; background-image: url('assets/cobalt-brand-board.png'); background-repeat: no-repeat; background-size: 214% auto; background-position: right top; box-shadow: -30px 30px 70px rgba(0,27,91,.22); }
.hero-visual::after { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(5,73,202,1) 0%, rgba(5,73,202,1) 48%, rgba(5,73,202,.88) 64%, transparent 84%), linear-gradient(0deg, rgba(3,45,130,.64), transparent 28%); }
.hero-content { position: relative; z-index: 2; }
.eyebrow { margin: 0 0 23px; color: rgba(255,255,255,.7); text-transform: uppercase; letter-spacing: .24em; font-size: 10px; font-weight: 700; }
.eyebrow::before { content: ''; display: inline-block; width: 34px; height: 2px; margin-right: 12px; vertical-align: middle; background: var(--cobalt-bright); }
.eyebrow--blue { color: var(--cobalt); }
.hero h1 { max-width: 850px; margin: 0; font-family: var(--serif); font-size: clamp(64px, 6.6vw, 96px); line-height: .9; letter-spacing: -.055em; font-weight: 400; }
.hero h1 em { color: var(--stone); font-weight: 400; }
.hero-copy { max-width: 620px; margin: 34px 0 0; color: rgba(255,255,255,.83); font-size: clamp(17px, 1.5vw, 21px); line-height: 1.55; }
.hero-actions { display: flex; align-items: center; gap: 34px; margin-top: 36px; }
.button { display: inline-flex; align-items: center; justify-content: space-between; gap: 26px; min-height: 54px; padding: 0 22px; border: 0; text-decoration: none; font-size: 13px; font-weight: 700; letter-spacing: .015em; cursor: pointer; transition: transform .2s, background .2s; }
.button:hover { transform: translateY(-2px); }
.button--primary { background: var(--cobalt); color: var(--white); }
.hero .button--primary { background: var(--white); color: var(--cobalt); }
.hero .button--primary:hover { background: var(--ink); color: var(--white); }
.button--primary:hover { background: var(--cobalt-bright); }
.text-link { padding-block: 10px; color: rgba(255,255,255,.8); text-decoration: none; font-size: 13px; border-bottom: 1px solid rgba(255,255,255,.3); }
.proof-bar { position: absolute; z-index: 3; left: 0; right: 0; bottom: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid rgba(255,255,255,.2); }
.proof-bar div { min-width: 0; min-height: 118px; padding: 28px 30px 24px 0; border-right: 1px solid rgba(255,255,255,.17); }
.proof-bar div:not(:first-child) { padding-left: 30px; }
.proof-bar div:last-child { border-right: 0; }
.proof-bar strong { display: block; margin-bottom: 9px; color: var(--white); font-family: var(--serif); font-size: 26px; font-weight: 400; }
.proof-bar span { display: block; max-width: 100%; overflow-wrap: anywhere; color: rgba(255,255,255,.57); font-size: 10px; line-height: 1.35; text-transform: uppercase; letter-spacing: .1em; }

.fit-section { padding: 126px 0 100px; }
.section-heading { display: grid; grid-template-columns: minmax(0, .75fr) minmax(0, 1.6fr) minmax(0, 1fr); gap: 34px; align-items: start; }
.section-heading .eyebrow { margin-top: 13px; }
.section-heading h2, .experience-section h2, .checker-heading h2 { margin: 0; font-family: var(--serif); font-size: clamp(42px, 5vw, 70px); line-height: .98; letter-spacing: -.045em; font-weight: 400; }
.section-heading > p:last-child { margin: 11px 0 0; color: var(--muted); font-size: 15px; line-height: 1.65; }
.project-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: 80px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.project-card { position: relative; min-height: 380px; padding: 42px 36px 44px 0; border-right: 1px solid var(--line); }
.project-card + .project-card { padding-left: 36px; }
.project-card:last-child { border-right: 0; }
.card-number { position: absolute; right: 24px; top: 26px; color: #a3aaad; font-size: 10px; letter-spacing: .15em; }
.project-card svg { width: 62px; height: 62px; margin: 35px 0 72px; fill: none; stroke: var(--cobalt); stroke-width: 1.4; }
.project-card h3 { margin: 0 0 13px; font-family: var(--serif); font-size: 29px; font-weight: 400; letter-spacing: -.025em; }
.project-card p { max-width: 330px; margin: 0; color: var(--muted); font-size: 14px; line-height: 1.65; }
.fit-note { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 80px; padding: 34px 0 0; }
.fit-note p { margin: 0; font-size: 14px; line-height: 1.65; }
.fit-note .not-for { color: var(--muted); }

.experience-section { padding: 126px 0; background: linear-gradient(135deg, #151d23, #0f171d); color: var(--white); border-top: 8px solid var(--cobalt); }
.experience-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 76px 100px; }
.experience-intro h2 { max-width: 600px; }
.experience-copy { padding-top: 39px; }
.experience-copy p { color: rgba(255,255,255,.6); font-size: 15px; line-height: 1.75; }
.experience-copy .lead { margin-top: 0; color: rgba(255,255,255,.9); font-family: var(--serif); font-size: 22px; line-height: 1.5; }
.principles { border-top: 1px solid rgba(255,255,255,.16); }
.principle { display: grid; grid-template-columns: 48px 1fr; gap: 8px; padding: 30px 0; border-bottom: 1px solid rgba(255,255,255,.16); }
.principle > span { color: var(--cobalt-bright); font-size: 11px; }
.principle h3 { margin: 0 0 7px; font-family: var(--serif); font-size: 23px; font-weight: 400; }
.principle p { max-width: 480px; margin: 0; color: rgba(255,255,255,.55); font-size: 13px; line-height: 1.6; }
.quote-panel { display: flex; min-height: 390px; flex-direction: column; justify-content: space-between; padding: 48px; background: var(--cobalt); }
.quote-panel p { max-width: 540px; margin: 0; font-family: var(--serif); font-size: clamp(33px, 3.6vw, 50px); line-height: 1.08; letter-spacing: -.035em; }
.quote-panel span { font-size: 10px; text-transform: uppercase; letter-spacing: .2em; }

.faq-section { padding: 112px 0 120px; scroll-margin-top: 76px; }
.faq-grid { display: grid; grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); gap: 90px; }
.faq-intro h2 { max-width: 470px; margin: 0; font-family: var(--serif); font-size: clamp(42px, 5vw, 70px); line-height: .98; letter-spacing: -.045em; font-weight: 400; }
.faq-intro > p:last-child { max-width: 410px; margin: 22px 0 0; color: var(--muted); font-size: 16px; line-height: 1.65; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { position: relative; padding: 26px 38px 26px 0; cursor: pointer; list-style: none; font-size: 17px; font-weight: 650; line-height: 1.4; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: '+'; position: absolute; right: 3px; top: 24px; color: var(--cobalt); font-size: 26px; line-height: 1; font-weight: 400; }
.faq-list details[open] summary::after { content: '−'; }
.faq-list summary:focus-visible { outline: 2px solid var(--cobalt); outline-offset: 4px; }
.faq-list details p { max-width: 630px; margin: -4px 0 27px; color: var(--muted); font-size: 15px; line-height: 1.7; }

.checker-section { padding: 126px 0 0; background: var(--stone); }
.checker-shell { max-width: 1040px; }
.checker-heading { max-width: 720px; margin-bottom: 58px; }
.checker-heading > p:last-child { max-width: 560px; margin: 22px 0 0; color: var(--muted); font-size: 15px; line-height: 1.65; }
.checker-card { padding: 15px 54px 54px; background: var(--white); box-shadow: 0 24px 70px rgba(26,36,43,.1); }
.checker-step { min-width: 0; padding: 42px 0 46px; margin: 0; border: 0; border-bottom: 1px solid var(--line); scroll-margin-top: 110px; animation: step-in .35s ease both; }
.checker-step[hidden], .checker-result[hidden] { display: none; }
.checker-step legend { display: block; width: 100%; max-width: 720px; font-family: var(--serif); font-size: clamp(30px, 4vw, 44px); line-height: 1.1; letter-spacing: -.035em; }
.question-index { display: block; margin-bottom: 16px; color: var(--cobalt); font-family: var(--sans); font-size: 12px; font-weight: 700; line-height: 1.4; letter-spacing: .18em; }
.step-help { margin: 12px 0 30px; color: var(--muted); font-size: 13px; }
.options { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.options--two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.options label { position: relative; cursor: pointer; }
.options input { position: absolute; opacity: 0; pointer-events: none; }
.options label span { display: flex; min-height: 100px; height: 100%; flex-direction: column; justify-content: center; padding: 17px 18px; border: 1px solid #d9dcde; background: #fbfbfa; transition: border .2s, background .2s, transform .2s; }
.options label:hover span { transform: translateY(-2px); border-color: #9aa6ae; }
.options input:checked + span { border-color: var(--cobalt); background: #eff4ff; box-shadow: inset 0 0 0 1px var(--cobalt); }
.options input:focus-visible + span { outline: 3px solid rgba(23,89,232,.25); outline-offset: 2px; }
.options b { margin-bottom: 8px; font-size: 14px; }
.options small { color: var(--muted); font-size: 11px; line-height: 1.4; }
.text-button { border: 0; border-bottom: 1px solid currentColor; padding: 8px 0; background: none; cursor: pointer; font-size: 12px; }
.checker-result { padding: 48px 0 0; scroll-margin-top: 110px; animation: step-in .45s ease both; }
.result-mark { display: flex; width: 54px; height: 54px; align-items: center; justify-content: center; margin-bottom: 28px; border-radius: 50%; background: var(--cobalt); color: var(--white); font-size: 22px; }
.checker-result h3 { max-width: 760px; margin: 0; font-family: var(--serif); font-size: clamp(38px, 5vw, 60px); line-height: 1; letter-spacing: -.045em; font-weight: 400; }
.checker-result > p:not(.eyebrow) { max-width: 700px; margin: 22px 0; color: var(--muted); font-size: 15px; line-height: 1.7; }
.result-summary { display: flex; flex-wrap: wrap; gap: 8px; margin: 26px 0 32px; }
.result-summary span { padding: 8px 11px; background: var(--stone); font-size: 10px; text-transform: uppercase; letter-spacing: .06em; }
.result-actions { display: flex; align-items: center; gap: 28px; }

.site-footer { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 30px; align-items: end; margin-top: 110px; padding: 46px 0 36px; border-top: 1px solid rgba(13,27,39,.18); }
.brand--footer img { width: 142px; }
.site-footer > p { justify-self: end; max-width: 370px; margin: 0; color: var(--muted); text-align: right; font-size: 12px; line-height: 1.5; }
.site-footer .footer-small { grid-column: 1 / -1; justify-self: auto; max-width: none; padding-top: 20px; border-top: 1px solid rgba(13,27,39,.12); text-align: left; font-size: 9px; text-transform: uppercase; letter-spacing: .12em; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .65s ease, transform .65s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
@keyframes step-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .reveal, .checker-step, .checker-result { opacity: 1; transform: none; transition: none; animation: none; } }

@media (max-width: 1100px) {
  .site-header { grid-template-columns: 1fr auto; }
  .desktop-nav, .header-cta { display: none; }
  .menu-button { display: grid; width: 46px; height: 46px; place-content: center; gap: 6px; border: 0; background: none; cursor: pointer; }
  .menu-button span { display: block; width: 24px; height: 1px; background: var(--ink); transition: transform .2s; }
  .menu-button[aria-expanded="true"] span:first-child { transform: translateY(3.5px) rotate(45deg); }
  .menu-button[aria-expanded="true"] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }
  .mobile-nav { position: fixed; inset: 92px 0 auto; min-height: calc(100svh - 92px); display: flex; flex-direction: column; gap: 0; padding: 40px 24px; background: var(--ink); }
  .site-header.is-scrolled .mobile-nav { top: 76px; min-height: calc(100svh - 76px); }
  .mobile-nav[hidden] { display: none; }
  .mobile-nav a { padding: 22px 0; color: var(--white); border-bottom: 1px solid rgba(255,255,255,.14); text-decoration: none; font-family: var(--serif); font-size: 30px; }
  .hero { min-height: 660px; }
  .hero-visual { width: 64%; opacity: .82; }
  .section-heading { grid-template-columns: 1fr; }
  .section-heading .eyebrow { margin-top: 0; }
  .section-heading > p:last-child { max-width: 600px; }
  .experience-grid { gap: 60px 50px; }
  .faq-grid { gap: 50px; }
}

@media (max-width: 720px) {
  .shell { width: min(calc(100% - 32px), var(--max)); }
  .site-header { height: 72px; padding-inline: 16px; }
  .site-header.is-scrolled { height: 72px; }
  .mobile-nav, .site-header.is-scrolled .mobile-nav { top: 72px; min-height: calc(100svh - 72px); }
  .brand { gap: 8px; }
  .brand img { width: 116px; }
  .brand--footer img { width: 116px; }
  .brand-copy { gap: 4px; padding-left: 8px; }
  .brand-copy strong { font-size: 9px; letter-spacing: .1em; }
  .brand-copy small { font-size: 8px; }
  .hero { height: auto; min-height: 0; max-height: none; justify-content: flex-start; padding: 124px 0 0; }
  .hero::after { background: linear-gradient(90deg, rgba(2,9,15,.9), rgba(3,12,19,.38)), linear-gradient(0deg, rgba(3,10,16,.9), transparent 50%); }
  .hero-visual { top: 72px; width: 100%; height: 54%; opacity: .58; background-size: 214% auto; }
  .hero-grid { background-size: 48px 48px; }
  .hero-content { padding-top: 0; }
  .hero h1 { font-size: clamp(52px, 14vw, 72px); line-height: .92; }
  .hero-copy { max-width: 500px; margin-top: 27px; font-size: 16px; line-height: 1.55; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 15px; margin-top: 29px; }
  .proof-bar { position: relative; left: auto; right: auto; bottom: auto; grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: 48px; }
  .proof-bar div { min-height: 86px; padding: 17px 12px 14px 0; }
  .proof-bar div:not(:first-child) { padding-left: 16px; }
  .proof-bar div:nth-child(2) { border-right: 0; }
  .proof-bar div:nth-child(-n+2) { border-bottom: 1px solid rgba(255,255,255,.16); }
  .proof-bar strong { margin-bottom: 5px; font-size: 21px; }
  .proof-bar span { font-size: 8px; }
  .fit-section, .experience-section, .faq-section, .checker-section { padding-top: 82px; }
  .section-heading h2, .experience-section h2, .checker-heading h2 { font-size: 43px; }
  .project-cards { grid-template-columns: 1fr; margin-top: 52px; }
  .project-card, .project-card + .project-card { min-height: 0; padding: 32px 0 34px; border-right: 0; border-bottom: 1px solid var(--line); }
  .project-card:last-child { border-bottom: 0; }
  .project-card svg { width: 50px; height: 50px; margin: 20px 0 44px; }
  .fit-note { grid-template-columns: 1fr; gap: 16px; }
  .experience-grid { grid-template-columns: 1fr; gap: 42px; }
  .experience-copy { padding-top: 0; }
  .experience-copy .lead { font-size: 20px; }
  .quote-panel { min-height: 300px; padding: 32px; }
  .faq-section { padding-bottom: 88px; }
  .faq-grid { grid-template-columns: 1fr; gap: 38px; }
  .faq-intro h2 { font-size: 43px; }
  .faq-list summary { font-size: 16px; }
  .checker-heading { margin-bottom: 40px; }
  .checker-card { padding: 0 22px 36px; }
  .checker-step { padding: 34px 0 38px; }
  .checker-step legend { font-size: 32px; }
  .options, .options--two { grid-template-columns: 1fr; gap: 8px; }
  .options label span { min-height: 72px; padding: 12px 14px; }
  .checker-result { padding-top: 38px; }
  .result-actions { align-items: flex-start; flex-direction: column; gap: 15px; }
  .site-footer { grid-template-columns: 1fr; gap: 26px; margin-top: 78px; }
  .site-footer > p { justify-self: auto; text-align: left; }
  .site-footer .footer-small { grid-column: 1; }
}

@media (max-width: 360px) {
  .brand img { width: 100px; }
  .brand-copy strong { font-size: 8px; }
  .site-header .brand-copy small { display: none; }
}