:root {
  --ink: #071d2c;
  --ink-2: #12364b;
  --text: #405e6f;
  --muted: #6f8794;
  --line: #d9e4e9;
  --surface: #ffffff;
  --soft: #edf6f5;
  --soft-blue: #edf5f9;
  --cyan: #00a987;
  --cyan-dark: #007b64;
  --lime: #c8f08c;
  --yellow: #ffd34e;
  --dark: #071d2c;
  --dark-2: #0c2a3b;
  --white: #ffffff;
  --max: 1180px;
  --shadow: 0 24px 70px -42px rgba(7, 29, 44, .42), 0 10px 28px -22px rgba(7, 29, 44, .28);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 86px; }
body { margin: 0; color: var(--ink); background: var(--surface); font-family: "DM Sans", system-ui, sans-serif; -webkit-font-smoothing: antialiased; }
body.menu-open { overflow: hidden; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
img, svg { display: block; max-width: 100%; }
p { margin: 0; color: var(--text); line-height: 1.7; }
h1, h2, h3 { font-family: "Manrope", system-ui, sans-serif; margin: 0; text-wrap: balance; }
h1 { font-size: clamp(3.5rem, 7vw, 6.8rem); line-height: .93; letter-spacing: -.07em; font-weight: 600; }
h1 span { color: var(--cyan); }
h2 { font-size: clamp(2.35rem, 4.8vw, 4.7rem); line-height: 1.02; letter-spacing: -.055em; font-weight: 600; }
h3 { letter-spacing: -.025em; }
.container { width: min(var(--max), calc(100% - 48px)); margin-inline: auto; }
.section { padding: 128px 0; }
.section-soft { background: var(--soft); }
.section-dark { color: var(--white); background: var(--dark); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; z-index: 200; left: 16px; top: -60px; padding: 10px 14px; color: var(--white); background: var(--dark); border-radius: 4px; transition: top .2s; }
.skip-link:focus { top: 16px; }
:focus-visible { outline: 3px solid var(--yellow); outline-offset: 3px; }

.eyebrow { margin-bottom: 22px; color: var(--cyan-dark); font-size: .76rem; font-weight: 600; letter-spacing: .17em; text-transform: uppercase; }
.eyebrow-light { color: var(--lime); }
.button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; padding: 12px 22px; color: var(--white); background: var(--ink); border: 1px solid var(--ink); border-radius: 5px; font-weight: 600; text-decoration: none; cursor: pointer; transition: transform .2s ease, background .2s ease, color .2s ease; }
.button:hover { transform: translateY(-2px); background: var(--cyan-dark); border-color: var(--cyan-dark); }
.button-small { min-height: 42px; padding: 9px 17px; }
.button-light { color: var(--ink); background: var(--lime); border-color: var(--lime); }
.button-light:hover { color: var(--ink); background: var(--white); border-color: var(--white); }
.text-link { display: inline-flex; gap: 8px; align-items: center; min-height: 44px; font-weight: 600; text-decoration: none; border-bottom: 1px solid var(--line); }
.text-link span { transition: transform .2s ease; }
.text-link:hover span { transform: translate(3px,-3px); }

.site-header { position: fixed; z-index: 100; top: 0; width: 100%; border-bottom: 1px solid transparent; transition: background .25s, border-color .25s, box-shadow .25s; }
.site-header.scrolled { background: rgba(255,255,255,.92); border-color: var(--line); box-shadow: 0 8px 30px -25px rgba(7,29,44,.6); backdrop-filter: blur(16px); }
.nav-shell { min-height: 76px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; gap: 11px; align-items: center; color: var(--ink); font-family: "Manrope", sans-serif; font-size: 1.05rem; font-weight: 700; letter-spacing: -.02em; text-decoration: none; }
.brand-mark { width: 27px; height: 27px; position: relative; display: inline-block; }
.brand-mark i { position: absolute; left: 3px; width: 21px; height: 5px; background: var(--ink); transform: skewX(-24deg); }
.brand-mark i:nth-child(1) { top: 3px; }
.brand-mark i:nth-child(2) { top: 11px; width: 16px; background: var(--cyan); }
.brand-mark i:nth-child(3) { top: 19px; width: 11px; }
.site-nav { display: flex; gap: 30px; align-items: center; }
.site-nav > a:not(.button) { font-size: .92rem; font-weight: 500; text-decoration: none; }
.site-nav > a:not(.button):hover { color: var(--cyan-dark); }
.menu-toggle { display: none; width: 44px; height: 44px; padding: 0; border: 0; background: transparent; cursor: pointer; }
.menu-toggle span:not(.sr-only) { display: block; width: 24px; height: 2px; margin: 6px auto; background: var(--ink); transition: transform .2s; }

.hero { min-height: 880px; padding: 170px 0 105px; overflow: hidden; background: radial-gradient(circle at 79% 25%, rgba(0,169,135,.10), transparent 26%), linear-gradient(180deg,#f7fbfb 0%,#fff 78%); }
.hero-grid { display: grid; grid-template-columns: 1.04fr .96fr; gap: clamp(48px,7vw,95px); align-items: center; }
.hero-lede { max-width: 690px; margin: 34px 0 28px; font-size: clamp(1.12rem,1.8vw,1.35rem); line-height: 1.6; }
.hero-actions { display: flex; gap: 24px; align-items: center; flex-wrap: wrap; }
.hero-note { margin-top: 26px; color: var(--muted); font-size: .88rem; }
.quality-system { padding: 20px; border: 1px solid #cadde3; border-radius: 8px; background: rgba(255,255,255,.88); box-shadow: var(--shadow); transform: rotate(1deg); }
.system-topline { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; padding-bottom: 14px; border-bottom: 1px solid var(--line); color: var(--muted); font-family: monospace; font-size: .67rem; letter-spacing: .13em; }
.status { display: inline-flex; gap: 6px; align-items: center; color: var(--cyan-dark); letter-spacing: 0; }
.status i { width: 7px; height: 7px; background: var(--cyan); border-radius: 50%; box-shadow: 0 0 0 4px rgba(0,169,135,.1); }
.system-input,.system-output { display: flex; gap: 14px; align-items: center; padding: 17px; border: 1px solid var(--line); border-radius: 5px; background: var(--white); }
.system-index { color: var(--cyan-dark); font-family: monospace; font-size: .7rem; }
.system-input strong,.system-output strong { display: block; margin-bottom: 4px; font-size: .96rem; }
.system-input small,.system-output small { color: var(--muted); }
.system-output svg { width: 34px; margin-left: auto; fill: none; stroke: var(--cyan); stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }
.system-rail { height: 31px; position: relative; }
.system-rail::before { content: ""; position: absolute; top: 0; bottom: 0; left: 31px; border-left: 1px dashed #9cb7c4; }
.system-rail span { position: absolute; left: 28px; top: 12px; width: 7px; height: 7px; background: var(--lime); border-radius: 50%; }
.system-engine { padding: 18px; color: var(--white); background: var(--dark); border-radius: 5px; }
.engine-label { margin-bottom: 10px; color: var(--lime); font: .65rem monospace; letter-spacing: .12em; }
.engine-row { display: flex; justify-content: space-between; gap: 10px; padding: 11px 0; border-top: 1px solid rgba(255,255,255,.12); font-size: .82rem; }
.engine-row span { color: #acc1cb; }
.engine-row b { font-weight: 500; text-align: right; }

.experience-strip { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 32px 0; }
.experience-row > p:first-child { margin-bottom: 23px; color: var(--muted); font-size: .72rem; text-transform: uppercase; letter-spacing: .14em; }
.experience-lede { max-width: 74ch; font-size: 1.05rem; line-height: 1.65; color: var(--ink-2); }
.experience-lede strong { color: var(--ink); font-weight: 600; white-space: nowrap; }
.experience-disclaimer { margin-top: 20px; font-size: .7rem; line-height: 1.4; color: #8aa0aa; }

.problem-section { padding: 130px 0; }
.problem-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 90px; }
.problem-layout h2 { max-width: 600px; }
.problem-list { border-top: 1px solid rgba(255,255,255,.2); }
.problem-item { display: grid; grid-template-columns: 44px 1fr; gap: 16px; padding: 28px 0; border-bottom: 1px solid rgba(255,255,255,.2); }
.problem-item > span { color: var(--lime); font: .72rem monospace; }
.problem-item h3 { margin-bottom: 8px; font-size: 1.25rem; }
.problem-item p { max-width: 520px; color: #a9bec8; }

.section-intro { max-width: 870px; margin-bottom: 90px; }
.section-intro > p:last-child { max-width: 690px; margin-top: 27px; font-size: 1.15rem; }
.practice { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(50px,8vw,110px); align-items: center; padding: 95px 0; border-top: 1px solid var(--line); }
.practice-number { margin-bottom: 20px; color: var(--cyan-dark); font: .72rem monospace; letter-spacing: .1em; text-transform: uppercase; }
.practice-copy > h3 { max-width: 600px; font-size: clamp(2rem,3.3vw,3.35rem); line-height: 1.08; }
.practice-copy > p { margin-top: 25px; font-size: 1.08rem; }
.check-list { margin: 30px 0 0; padding: 0; list-style: none; }
.check-list li { padding: 13px 0 13px 27px; position: relative; border-top: 1px solid var(--line); color: var(--ink-2); }
.check-list li::before { content: ""; position: absolute; left: 2px; top: 19px; width: 8px; height: 4px; border-left: 2px solid var(--cyan); border-bottom: 2px solid var(--cyan); transform: rotate(-45deg); }
.domain-explorer { box-shadow: var(--shadow); }
.domain-board { display: grid; grid-template-columns: 1fr 1fr; background: var(--line); border: 1px solid var(--line); gap: 1px; }
.domain-cell { min-height: 190px; position: relative; display: flex; flex-direction: column; padding: 24px; overflow: hidden; color: var(--ink); background: var(--white); border: 0; text-align: left; cursor: pointer; transition: color .34s ease, background .34s ease, transform .34s ease; }
.domain-cell::before { content: ""; position: absolute; inset: auto -20% -70% 30%; height: 170px; background: radial-gradient(circle, rgba(200,240,140,.25), transparent 68%); opacity: 0; transform: scale(.7); transition: opacity .4s ease, transform .55s cubic-bezier(.2,.75,.25,1); }
.domain-cell > span { z-index: 1; margin-bottom: auto; color: var(--cyan-dark); font: .7rem monospace; transition: color .3s; }
.domain-cell strong { z-index: 1; margin-bottom: 8px; font: 600 1.4rem "Manrope",sans-serif; }
.domain-cell small { z-index: 1; max-width: 250px; color: var(--muted); line-height: 1.5; transition: color .3s; }
.domain-cell > i { position: absolute; z-index: 1; top: 22px; right: 22px; font-style: normal; opacity: 0; transform: translate(-8px,8px); transition: opacity .3s, transform .3s; }
.domain-cell:hover { z-index: 1; transform: translateY(-3px); }
.domain-cell:hover > i { opacity: 1; transform: none; }
.domain-cell.is-active { color: var(--white); background: var(--dark); }
.domain-cell.is-active::before { opacity: 1; transform: scale(1); }
.domain-cell.is-active > span { color: var(--lime); }
.domain-cell.is-active small { color: #aec1ca; }
.domain-cell.is-active > i { color: var(--lime); opacity: 1; transform: rotate(90deg); }
.domain-cell:focus-visible { z-index: 2; outline-offset: -5px; }
.domain-details { min-height: 335px; position: relative; overflow: hidden; color: var(--white); background: var(--dark-2); border: 1px solid var(--dark-2); border-top: 0; }
.domain-panel { display: grid; grid-template-columns: .78fr 1.22fr; gap: 30px; padding: 30px; opacity: 0; transform: translateY(18px); transition: opacity .28s ease, transform .38s cubic-bezier(.2,.75,.25,1); }
.domain-panel[hidden] { display: none; }
.domain-panel.is-visible { opacity: 1; transform: none; }
.domain-panel-head span { display: block; margin-bottom: 18px; color: var(--lime); font: .66rem monospace; letter-spacing: .09em; text-transform: uppercase; }
.domain-panel h4 { margin: 0; font: 600 clamp(1.5rem,2.2vw,2rem)/1.1 "Manrope",sans-serif; letter-spacing: -.035em; }
.domain-panel ul { margin: 0; padding: 0; list-style: none; }
.domain-panel li { position: relative; padding: 10px 0 10px 22px; color: #bfd0d8; border-top: 1px solid rgba(255,255,255,.13); font-size: .86rem; line-height: 1.45; }
.domain-panel li::before { content: ""; position: absolute; left: 1px; top: 17px; width: 7px; height: 4px; border-left: 2px solid var(--lime); border-bottom: 2px solid var(--lime); transform: rotate(-45deg); }
.practice-ai { grid-template-columns: .9fr 1.1fr; }
.ai-diagram { min-height: 520px; position: relative; display: grid; place-items: center; overflow: hidden; background: var(--dark); border-radius: 7px; box-shadow: var(--shadow); }
.ai-core { z-index: 2; width: 176px; height: 176px; display: flex; flex-direction: column; align-items: center; justify-content: center; color: var(--white); background: var(--dark-2); border: 1px solid rgba(200,240,140,.5); border-radius: 50%; box-shadow: 0 0 55px rgba(0,169,135,.22); text-align: center; }
.ai-core span { margin-bottom: 8px; color: var(--lime); font: .66rem monospace; letter-spacing: .14em; }
.ai-core strong { font: 600 1.4rem/1.1 "Manrope",sans-serif; }
.orbit { position: absolute; border: 1px solid rgba(255,255,255,.13); border-radius: 50%; }
.orbit-one { width: 340px; height: 340px; }
.orbit-two { width: 480px; height: 480px; border-style: dashed; }
.ai-node { z-index: 3; position: absolute; display: flex; gap: 8px; align-items: center; padding: 8px 10px; color: #d9e6eb; background: #0e3447; border: 1px solid rgba(255,255,255,.13); border-radius: 4px; font-size: .72rem; }
.ai-node i { width: 6px; height: 6px; background: var(--lime); border-radius: 50%; }
.node-a { top: 18%; left: 9%; }.node-b { top: 23%; right: 7%; }.node-c { bottom: 18%; left: 8%; }.node-d { right: 8%; bottom: 21%; }
.ai-capabilities { margin-top: 33px; border-top: 1px solid var(--line); }
.ai-capabilities > div { display: grid; grid-template-columns: 180px 1fr; gap: 18px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.ai-capabilities strong { color: var(--ink-2); font-size: .95rem; }
.ai-capabilities p { font-size: .9rem; line-height: 1.5; }

.approach-header { display: grid; grid-template-columns: 1.4fr .6fr; gap: 80px; align-items: end; }
.approach-header > p { font-size: 1.08rem; }
.steps { display: grid; grid-template-columns: repeat(4,1fr); margin: 75px 0 0; padding: 0; list-style: none; border-top: 1px solid #bdd1d2; }
.steps li { min-height: 255px; padding: 24px 26px 20px 0; border-right: 1px solid #bdd1d2; }
.steps li:not(:first-child) { padding-left: 26px; }
.steps li:last-child { border-right: 0; }
.steps span { color: var(--cyan-dark); font: .72rem monospace; }
.steps h3 { margin: 68px 0 12px; font-size: 1.18rem; }
.steps p { font-size: .9rem; line-height: 1.55; }

.experience-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 100px; align-items: center; }
.experience-years { min-height: 470px; display: flex; flex-direction: column; justify-content: center; padding: 50px; color: var(--white); background: var(--dark); }
.experience-years span { color: var(--lime); font: 600 clamp(7rem,14vw,13rem)/.8 "Manrope",sans-serif; letter-spacing: -.09em; }
.experience-years p { max-width: 320px; margin-top: 40px; color: #bad0d8; font-size: 1.2rem; }
.experience-copy > p:not(.eyebrow) { margin-top: 26px; font-size: 1.15rem; }
.outcome-lines { display: grid; grid-template-columns: 1fr 1fr; margin-top: 38px; border-top: 1px solid var(--line); }
.outcome-lines span { padding: 16px 8px 16px 0; border-bottom: 1px solid var(--line); color: var(--ink-2); font-weight: 500; }

.faq-layout { display: grid; grid-template-columns: .72fr 1.28fr; gap: 90px; }
.accordion { border-top: 1px solid var(--line); }
details { border-bottom: 1px solid var(--line); }
summary { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 18px 2px; cursor: pointer; font: 600 1.05rem "Manrope",sans-serif; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary span { width: 17px; height: 17px; position: relative; flex: 0 0 17px; }
summary span::before,summary span::after { content: ""; position: absolute; background: var(--ink); transition: transform .2s; }
summary span::before { width: 17px; height: 1px; top: 8px; }
summary span::after { width: 1px; height: 17px; left: 8px; }
details[open] summary span::after { transform: rotate(90deg); }
details p { max-width: 710px; padding: 0 40px 24px 0; }

.contact-section { padding: 45px 0 110px; }
.contact-card { display: grid; grid-template-columns: 1fr auto; gap: 30px 70px; align-items: center; padding: clamp(40px,7vw,85px); color: var(--white); background: var(--dark); }
.contact-card h2 { max-width: 760px; }
.contact-card p:not(.eyebrow):not(.contact-direct) { max-width: 690px; margin-top: 24px; color: #b5c9d2; font-size: 1.08rem; }
.contact-direct { grid-column: 1/-1; margin-top: 26px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.16); font-size: .95rem; }
.contact-direct a { color: var(--lime); text-underline-offset: 3px; }
.site-footer { padding: 72px 0; color: var(--white); background: #04141f; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.25fr; gap: 50px; }
.brand-light { color: var(--white); }
.brand-light .brand-mark i { background: var(--white); }.brand-light .brand-mark i:nth-child(2) { background: var(--lime); }
.footer-grid > div:first-child p { max-width: 310px; margin-top: 18px; color: #8ca7b5; }
.footer-grid > div:not(:first-child) { display: flex; flex-direction: column; gap: 11px; }
.footer-grid strong { margin-bottom: 8px; color: #819ba8; font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; }
.footer-grid a:not(.brand) { color: #cedbe1; font-size: .9rem; text-decoration: none; }
.footer-grid a:hover { color: var(--lime); }
.footer-meta p { color: #819ba8; font-size: .78rem; line-height: 1.5; }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity .65s ease, transform .65s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (max-width: 980px) {
  .site-nav { gap: 20px; }
  .hero { min-height: auto; }
  .hero-grid,.problem-layout,.practice,.practice-ai,.experience-layout,.faq-layout { grid-template-columns: 1fr; }
  .quality-system { max-width: 600px; }
  .problem-layout { gap: 55px; }
  .practice { gap: 60px; }
  .practice-ai .ai-diagram { order: 2; }
  .approach-header { grid-template-columns: 1fr; gap: 25px; }
  .steps { grid-template-columns: 1fr 1fr; }
  .steps li:nth-child(2) { border-right: 0; }
  .steps li:nth-child(n+3) { border-top: 1px solid #bdd1d2; }
  .footer-grid { grid-template-columns: 2fr 1fr 1fr; }
  .footer-meta { grid-column: 1/-1; flex-direction: row !important; justify-content: space-between; padding-top: 26px; border-top: 1px solid rgba(255,255,255,.12); }
}

@media (max-width: 760px) {
  .container { width: min(100% - 32px,var(--max)); }
  .section { padding: 88px 0; }
  .menu-toggle { display: block; }
  .site-nav { position: fixed; inset: 76px 0 auto; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 18px 16px 26px; background: var(--white); border-bottom: 1px solid var(--line); box-shadow: 0 20px 35px -25px rgba(7,29,44,.5); }
  .site-nav.open { display: flex; }
  .site-nav > a:not(.button) { padding: 15px 8px; border-bottom: 1px solid var(--line); }
  .site-nav .button { margin-top: 16px; }
  .menu-toggle[aria-expanded="true"] span:nth-child(2) { transform: translateY(4px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-4px) rotate(-45deg); }
  .hero { padding: 132px 0 82px; }
  .hero-grid { gap: 65px; }
  .hero-actions { align-items: stretch; flex-direction: column; gap: 10px; }
  .text-link { justify-content: center; }
  .quality-system { padding: 13px; transform: none; }
  .engine-row { flex-direction: column; }
  .engine-row b { text-align: left; }
  .problem-section { padding: 90px 0; }
  .practice { padding: 70px 0; }
  .domain-board { grid-template-columns: 1fr; }
  .domain-cell { min-height: 165px; }
  .domain-details { min-height: 0; }
  .domain-panel { grid-template-columns: 1fr; gap: 24px; padding: 26px 22px; }
  .ai-diagram { min-height: 420px; }
  .orbit-one { width: 275px; height: 275px; }.orbit-two { width: 390px; height: 390px; }
  .ai-node { font-size: .65rem; }.node-a { top: 12%; left: 5%; }.node-b { top: 18%; right: 3%; }.node-c { bottom: 12%; left: 4%; }.node-d { right: 4%; bottom: 17%; }
  .ai-capabilities > div { grid-template-columns: 1fr; gap: 7px; }
  .steps { grid-template-columns: 1fr; }
  .steps li,.steps li:not(:first-child) { min-height: 205px; padding: 24px 0; border-right: 0; border-bottom: 1px solid #bdd1d2; }
  .steps li:nth-child(n+3) { border-top: 0; }
  .steps h3 { margin-top: 40px; }
  .experience-layout { gap: 55px; }
  .experience-years { min-height: 370px; padding: 35px; }
  .outcome-lines { grid-template-columns: 1fr; }
  .faq-layout { gap: 45px; }
  .contact-card { grid-template-columns: 1fr; }
  .contact-card .button { width: 100%; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > div:first-child,.footer-meta { grid-column: 1/-1; }
  .footer-meta { flex-direction: column !important; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,*::before,*::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}