:root {
  --ink: #17121f;
  --paper: #f6f1fa;
  --violet-950: #160824;
  --violet-900: #25103b;
  --violet-800: #371750;
  --violet-700: #532675;
  --violet-500: #8f5bbe;
  --violet-300: #c9a9e5;
  --acid: #d8f18a;
  --muted: #655c6e;
  --line: rgba(28, 13, 43, 0.14);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
section[id] { scroll-margin-top: 100px; }
body { margin: 0; background: var(--violet-950); color: #f6f1fa; font-family: Arial, Helvetica, sans-serif; text-rendering: optimizeLegibility; }
a { color: inherit; text-decoration: none; }
a:focus-visible { outline: 3px solid var(--acid); outline-offset: 5px; }

.site-header { position: fixed; z-index: 30; top: 0; left: 0; right: 0; display: flex; align-items: center; justify-content: space-between; width: 100%; margin: 0 auto; padding: 16px clamp(24px,5vw,76px); border-bottom: 1px solid rgba(255,255,255,.14); background: rgba(22,8,36,.88); box-shadow: 0 8px 30px rgba(13,6,20,.14); font-size: .86rem; backdrop-filter: blur(16px); }
.identity { display: inline-flex; align-items: center; gap: 12px; font-weight: 700; letter-spacing: .02em; }
.site-logo { display: block; width: 188px; height: 64px; border-radius: 3px; object-fit: contain; }
.monogram { display: grid; width: 40px; height: 40px; place-items: center; border: 1px solid rgba(255,255,255,.42); border-radius: 50%; color: var(--acid); font-size: .76rem; letter-spacing: -.06em; }
.nav-links { display: flex; align-items: center; gap: clamp(18px, 2.4vw, 38px); color: rgba(255,255,255,.76); }
.nav-links a:not(.nav-contact):hover { color: #fff; }
.nav-contact { padding: 11px 18px; border: 1px solid rgba(255,255,255,.4); border-radius: 100px; color: #fff; }
.nav-contact:hover { background: #fff; color: var(--violet-900); }
.mobile-menu { display: none; }
.back-to-top { position: fixed; z-index: 20; right: 22px; bottom: 22px; display: grid; width: 58px; height: 58px; place-items: center; border: 1px solid rgba(255,255,255,.42); border-radius: 50%; background: rgba(22,8,36,.88); color: #fff; box-shadow: 0 10px 30px rgba(22,8,36,.24); backdrop-filter: blur(10px); transition: transform 180ms ease,background 180ms ease; }
.back-to-top:hover { background: var(--violet-700); transform: translateY(-3px); }
.back-to-top span { margin-top: 7px; font-size: 1.05rem; line-height: .7; }
.back-to-top small { margin-top: -8px; color: var(--violet-300); font-size: .58rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }

.hero { position: relative; display: grid; min-height: 830px; grid-template-columns: minmax(0,1.45fr) minmax(260px,.55fr); gap: 8vw; align-items: center; overflow: hidden; padding: 150px clamp(24px,8vw,128px) 100px; background: radial-gradient(circle at 88% 20%,rgba(215,169,255,.24),transparent 22%),linear-gradient(125deg,var(--violet-950) 12%,var(--violet-800) 62%,#7a46a2 145%); }
.hero::after { position: absolute; right: -20vw; bottom: -46vw; width: 80vw; height: 80vw; border: 1px solid rgba(255,255,255,.14); border-radius: 50%; box-shadow: 0 0 0 80px rgba(255,255,255,.025),0 0 0 160px rgba(255,255,255,.018); content: ""; pointer-events: none; }
.hero-copy,.hero-note { position: relative; z-index: 1; }
.eyebrow,.section-kicker { margin: 0 0 30px; color: var(--violet-700); font-size: .72rem; font-weight: 800; letter-spacing: .18em; text-transform: uppercase; }
.eyebrow { color: var(--acid); }
.hero h1 { max-width: 900px; margin: 0; font-family: Georgia,"Times New Roman",serif; font-size: clamp(3.25rem,6vw,6.8rem); font-weight: 400; letter-spacing: -.055em; line-height: .95; }
.hero h1 span { color: var(--violet-300); }
.hero-intro { max-width: 690px; margin: 36px 0 0; color: rgba(255,255,255,.72); font-size: clamp(1rem,1.5vw,1.22rem); line-height: 1.75; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 28px; margin-top: 44px; }
.button { display: inline-flex; align-items: center; justify-content: space-between; gap: 40px; min-width: 250px; padding: 17px 21px; border-radius: 3px; font-size: .88rem; font-weight: 700; transition: transform 180ms ease,background 180ms ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--acid); color: var(--violet-950); }
.text-link { padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,.34); color: rgba(255,255,255,.85); font-size: .88rem; }
.hero-note { align-self: end; max-width: 330px; margin-bottom: 20px; padding: 28px 0 10px 28px; border-left: 1px solid rgba(255,255,255,.28); }
.hero-note p { margin: 0 0 10px; font-family: Georgia,"Times New Roman",serif; font-size: clamp(1.15rem,1.6vw,1.5rem); }
.hero-note small { display: block; margin-top: 28px; color: rgba(255,255,255,.5); }

.section-light { background: var(--paper); color: var(--ink); }
.mission { display: grid; grid-template-columns: minmax(150px,.35fr) minmax(0,1.65fr); gap: 5vw; padding: clamp(85px,11vw,160px) clamp(24px,8vw,128px); }
.mission-content { display: grid; grid-template-columns: minmax(0,1.1fr) minmax(280px,.9fr); gap: 8vw; }
.mission h2,.section-heading h2,.method h2,.solutions h2,.contact h2 { margin: 0; font-family: Georgia,"Times New Roman",serif; font-size: clamp(2.6rem,4.5vw,5.2rem); font-weight: 400; letter-spacing: -.045em; line-height: 1.02; }
.mission-text { max-width: 600px; }
.mission-text p { margin: 0 0 24px; color: var(--muted); font-size: 1.02rem; line-height: 1.75; }
.mission-text .mission-quote { margin-top: 44px; padding-top: 24px; border-top: 1px solid var(--line); color: var(--violet-700); font-family: Georgia,"Times New Roman",serif; font-size: 1.45rem; line-height: 1.4; }
.mission-visual { margin: 0; padding: 0 clamp(24px,8vw,128px); background: var(--paper); }
.mission-visual img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; border-radius: 4px; box-shadow: 0 28px 80px rgba(22,8,36,.18); object-fit: cover; }

.expertise { padding: clamp(55px,6vw,85px) clamp(24px,8vw,128px) clamp(85px,11vw,160px); background: #fffdfd; color: var(--ink); }
.section-heading { display: grid; grid-template-columns: minmax(0,1.35fr) minmax(280px,.65fr); gap: 8vw; align-items: end; margin-bottom: 80px; }
.section-heading > p { max-width: 480px; margin: 0 0 8px; color: var(--muted); line-height: 1.75; }
.expertise-list { border-top: 1px solid var(--line); }
.expertise-item { display: grid; grid-template-columns: 90px minmax(240px,.7fr) minmax(300px,1fr); gap: 32px; align-items: start; padding: 38px 0; border-bottom: 1px solid var(--line); }
.expertise-number { color: var(--violet-500); font-family: Georgia,"Times New Roman",serif; font-size: 1.08rem; }
.expertise-item h3 { margin: 0; font-family: Georgia,"Times New Roman",serif; font-size: clamp(1.55rem,2.4vw,2.25rem); font-weight: 400; }
.expertise-item p { max-width: 680px; margin: 3px 0 0; color: var(--muted); line-height: 1.7; }

.method { padding: clamp(85px,10vw,145px) clamp(24px,8vw,128px); }
.method-intro { max-width: 1040px; }
.method-steps { display: grid; grid-template-columns: repeat(4,1fr); margin-top: 85px; border-top: 1px solid var(--line); }
.method-steps > div { min-height: 210px; padding: 25px 25px 30px 0; border-right: 1px solid var(--line); }
.method-steps > div:not(:first-child) { padding-left: 25px; }
.method-steps > div:last-child { border-right: 0; }
.method-steps span,.method-steps strong,.method-steps small { display: block; }
.method-steps span { color: var(--violet-500); font-family: Georgia,"Times New Roman",serif; font-size: 1.65rem; }
.method-steps strong { margin-top: 48px; font-family: Georgia,"Times New Roman",serif; font-size: clamp(1.35rem,1.8vw,1.7rem); font-weight: 400; line-height: 1.15; }
.method-steps small { margin-top: 14px; color: var(--muted); font-size: 1.02rem; line-height: 1.55; }

.solutions { display: grid; grid-template-columns: minmax(260px,.7fr) minmax(0,1.3fr); gap: 8vw; padding: clamp(90px,11vw,160px) clamp(24px,8vw,128px); background: linear-gradient(145deg,var(--violet-950),var(--violet-800)); }
.section-kicker-light { color: var(--acid); }
.solutions-intro { position: sticky; top: 60px; align-self: start; }
.solutions-intro p { max-width: 470px; margin: 34px 0 0; color: rgba(255,255,255,.64); line-height: 1.7; }
.solution-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); border-top: 1px solid rgba(255,255,255,.18); border-left: 1px solid rgba(255,255,255,.18); }
.solution-card { display: flex; min-height: 330px; flex-direction: column; padding: 34px; border-right: 1px solid rgba(255,255,255,.18); border-bottom: 1px solid rgba(255,255,255,.18); transition: background 180ms ease,color 180ms ease; }
.solution-card:hover { background: var(--acid); color: var(--violet-950); }
.solution-label { color: var(--violet-300); font-size: .7rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.solution-card:hover .solution-label { color: var(--violet-700); }
.solution-card h3 { margin: 50px 0 20px; font-family: Georgia,"Times New Roman",serif; font-size: clamp(2rem,3vw,3rem); font-weight: 400; letter-spacing: -.04em; }
.solution-card p { margin: 0; color: rgba(255,255,255,.62); font-size: .92rem; line-height: 1.65; }
.solution-card:hover p { color: rgba(22,8,36,.7); }
.solution-link { display: flex; justify-content: space-between; margin-top: auto; padding-top: 30px; font-size: .8rem; font-weight: 700; }

.contact { position: relative; display: grid; min-height: 700px; place-items: center; overflow: hidden; padding: 110px 24px; background: var(--acid); color: var(--violet-950); text-align: center; }
.contact-year { position: absolute; top: 48%; left: 50%; color: rgba(22,8,36,.12); font-family: Georgia,"Times New Roman",serif; font-size: clamp(5rem,5vw,8rem); font-weight: 700; letter-spacing: -.07em; transform: translate(-50%,-50%); white-space: nowrap; }
.contact-content { position: relative; z-index: 1; max-width: 900px; }
.contact-content > p { max-width: 620px; margin: 72px auto 34px; color: rgba(22,8,36,.76); line-height: 1.75; }
.button-dark { margin-top: 8px; background: var(--violet-950); color: #fff; }

footer { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 30px; padding: 34px clamp(24px,5vw,76px); background: #0d0614; color: rgba(255,255,255,.58); font-size: .76rem; }
footer p { margin: 0; text-align: center; }
.footer-center { display: grid; justify-self: end; gap: 9px; }
.footer-links { color: var(--violet-300); font-size: .84rem; font-style: italic; }
.footer-links a { border-bottom: 1px solid rgba(201,169,229,.42); transition: color 180ms ease,border-color 180ms ease; }
.footer-links a:hover { border-color: var(--acid); color: var(--acid); }
.footer-identity { color: #fff; }
.footer-identity .monogram { width: 34px; height: 34px; }
.footer-logo { display: block; width: 150px; height: auto; border-radius: 2px; }

@media (max-width: 980px) {
  .nav-links { display: none; }
  .mobile-menu { position: relative; display: block; }
  .mobile-menu summary { display: flex; min-width: 94px; align-items: center; justify-content: space-between; gap: 14px; padding: 12px 15px; border: 1px solid rgba(255,255,255,.42); border-radius: 100px; color: #fff; cursor: pointer; font-size: .78rem; font-weight: 700; list-style: none; }
  .mobile-menu summary::-webkit-details-marker { display: none; }
  .mobile-menu summary i,.mobile-menu summary i::before,.mobile-menu summary i::after { display: block; width: 14px; height: 1px; background: currentColor; content: ""; transition: transform 180ms ease; }
  .mobile-menu summary i { position: relative; }
  .mobile-menu summary i::before { position: absolute; top: -5px; }
  .mobile-menu summary i::after { position: absolute; top: 5px; }
  .mobile-menu[open] summary i { background: transparent; }
  .mobile-menu[open] summary i::before { top: 0; transform: rotate(45deg); }
  .mobile-menu[open] summary i::after { top: 0; transform: rotate(-45deg); }
  .mobile-menu-panel { position: absolute; top: calc(100% + 12px); right: 0; display: grid; width: min(310px,calc(100vw - 40px)); overflow: hidden; border: 1px solid rgba(255,255,255,.2); border-radius: 4px; background: rgba(22,8,36,.97); box-shadow: 0 20px 55px rgba(0,0,0,.35); backdrop-filter: blur(14px); }
  .mobile-menu-panel a { padding: 18px 20px; border-bottom: 1px solid rgba(255,255,255,.12); color: rgba(255,255,255,.86); font-size: .92rem; }
  .mobile-menu-panel a:last-child { border-bottom: 0; background: var(--acid); color: var(--violet-950); font-weight: 700; }
  .hero { min-height: 860px; grid-template-columns: 1fr; gap: 55px; align-content: center; }
  .hero-note { align-self: auto; }
  .mission,.mission-content,.section-heading,.solutions { grid-template-columns: 1fr; }
  .mission { gap: 20px; }
  .solutions-intro { position: static; }
  .expertise-item { grid-template-columns: 60px minmax(220px,.7fr) minmax(260px,1fr); }
  .method-steps { grid-template-columns: repeat(2,1fr); }
  .method-steps > div:nth-child(2) { border-right: 0; }
  .method-steps > div:nth-child(3),.method-steps > div:nth-child(4) { border-top: 1px solid var(--line); }
  footer { grid-template-columns: 1fr auto; }
  footer > p { display: none; }
}

@media (max-width: 680px) {
  .site-header { padding: 18px 20px; }
  .site-logo { width: 145px; height: auto; }
  .mobile-menu summary { min-width: 82px; gap: 10px; padding: 10px 12px; }
  .hero { min-height: auto; padding: 145px 22px 80px; }
  .hero h1 { font-size: clamp(3rem,15vw,4.5rem); }
  .hero-note { margin-top: 10px; }
  .button { width: 100%; }
  .mission,.expertise,.method,.solutions { padding-right: 22px; padding-left: 22px; }
  .mission-visual { padding: 0 22px; }
  .mission-content { gap: 40px; }
  .section-heading { gap: 36px; margin-bottom: 55px; }
  .expertise-item { grid-template-columns: 40px 1fr; gap: 16px; }
  .expertise-item p { grid-column: 2; }
  .method-steps { grid-template-columns: 1fr; margin-top: 55px; }
  .method-steps > div,.method-steps > div:not(:first-child) { min-height: 160px; padding: 24px 0; border-top: 1px solid var(--line); border-right: 0; }
  .method-steps span { font-size: 1.9rem; }
  .method-steps strong { margin-top: 28px; font-size: 1.6rem; }
  .method-steps small { margin-top: 10px; font-size: 1.1rem; }
  .solution-grid { grid-template-columns: 1fr; }
  .solution-card { min-height: 300px; padding: 28px; }
  .contact { min-height: 640px; padding: 90px 22px; }
  footer { grid-template-columns: 1fr; text-align: center; }
  footer > a { justify-self: center; }
  .footer-center { justify-self: center; }
  .back-to-top { right: 14px; bottom: 14px; width: 54px; height: 54px; }
}

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