@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Manrope:wght@400;450;500;550;600&display=swap');

:root {
  --paper: #fff;
  --ink: #171717;
  --muted: #737373;
  --red: #d52b1e;
  --line: #e5e5e2;
  --sans: 'Manrope', Arial, sans-serif;
  --serif: Georgia, 'Times New Roman', serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 38px; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); line-height: 1.7; -webkit-font-smoothing: antialiased; }
::selection { background: #f6dfdc; }
a { color: inherit; text-decoration: none; }
button { color: inherit; font: inherit; cursor: pointer; }
button:disabled { cursor: wait; }
a, button, summary { -webkit-tap-highlight-color: transparent; }
a:focus-visible, button:focus-visible, summary:focus-visible, input:focus-visible { outline: 1px solid var(--ink); outline-offset: 7px; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { font-weight: 450; letter-spacing: -.05em; line-height: 1.15; }
em { font-family: var(--serif); font-weight: 400; letter-spacing: -.055em; }
ul { list-style: none; padding: 0; margin: 0; }
.wrap { width: calc(100% - 128px); max-width: 1256px; margin-inline: auto; }
.section-space { padding-block: 108px; }
.eyebrow { font-family: 'Inter', sans-serif; font-size: 11px; line-height: 1.6; font-weight: 400; letter-spacing: .14em; color: var(--muted); }
.skip-link { position: fixed; z-index: 10; top: -80px; left: 20px; background: #171717; color: white; padding: 10px 16px; }
.skip-link:focus { top: 10px; }

.site-header { height: 106px; display: flex; justify-content: space-between; align-items: center; gap: 36px; }
.wordmark { font-family: 'Inter', Arial, sans-serif; display: inline-flex; align-items: baseline; gap: .23em; font-size: 30px; line-height: 1; font-weight: 700; letter-spacing: -1.65px; white-space: nowrap; }
.wordmark img { display: block; width: 160px; height: auto; }
.brand-amp { color: var(--red); }
.desktop-nav { display: flex; align-items: center; gap: 34px; font-size: 14px; margin-left: auto; margin-right: 48px; color: #5b5b5b; }
.desktop-nav a, .header-contact { transition: color .2s; }
.desktop-nav a:hover { color: var(--red); }
.header-contact { display: flex; justify-content: space-between; align-items: center; gap: 30px; border-bottom: 1px solid #242424; padding-block: 5px; font-size: 14px; }
.header-contact span { font-size: 19px; line-height: 1; color: var(--red); }
.menu-button { display: none; }
.mobile-nav[hidden] { display: none; }
.mobile-nav { display: flex; flex-direction: column; gap: 14px; padding: 18px 26px 25px; border-bottom: 1px solid var(--line); font-size: 14px; }

.hero-scene { position: relative; isolation: isolate; }
.hero-scene::before { content: ''; position: absolute; z-index: -1; inset: 0 0 20px; pointer-events: none; background: url('/assets/quant-landscape.webp') center bottom / 100% 100% no-repeat; opacity: .55; mask-image: linear-gradient(to bottom, transparent, #000 16%, #000 75%, transparent); }
.hero { padding-top: 95px; text-align: center; }
.hero-content { max-width: 1060px; margin-inline: auto; }
.hero .eyebrow { font-size: 11px; letter-spacing: .17em; }
.hero h1 { margin-top: 34px; font-size: clamp(44px, 6.2vw, 84px); line-height: 1.13; letter-spacing: -.057em; font-weight: 450; }
.hero h1 em { font-size: 1.065em; }
.hero-description { margin: 30px auto 0; max-width: 540px; color: #6f6f6f; font-size: 17px; line-height: 1.9; }
.hero-actions { display: flex; justify-content: center; align-items: center; gap: 30px; margin-top: 31px; }
.button { display: inline-flex; justify-content: space-between; align-items: center; gap: 35px; font-size: 13px; font-weight: 500; line-height: 1.5; padding: 16px 20px; border: 1px solid transparent; transition: background .2s; }
.button-dark { background: var(--ink); color: white; }
.button-dark:hover { background: #3c3c3c; }
.button-dark span { color: white; }
.text-link span, .inline-link span { color: var(--red); }
.button span { font-size: 18px; font-weight: 400; }
.text-link { font-size: 13px; display: flex; align-items: center; gap: 24px; padding-block: 7px; border-bottom: 1px solid var(--line); }
.hero-bottom { margin-top: 106px; padding-bottom: 25px; border-bottom: 1px solid var(--line); display: grid; grid-template-columns: 1fr 1fr 1fr; align-items: center; gap: 20px; font-size: 11px; color: #858585; }
.hero-bottom span:first-child { text-align: left; }
.hero-bottom span:last-child { text-align: right; }
.hero-bottom>a { justify-self: center; color: var(--red); font-size: 22px; padding: 0 15px; }

.section-heading { display: grid; grid-template-columns: 1fr 1.9fr; gap: 50px; margin-bottom: 60px; }
.section-heading>.eyebrow { padding-top: 11px; }
h2 { font-size: clamp(35px, 3.85vw, 53px); }
.section-heading>div>p { max-width: 470px; font-size: 16px; color: var(--muted); line-height: 1.9; margin-top: 23px; }
.service { border-top: 1px solid var(--line); }
.service:last-child { border-bottom: 1px solid var(--line); }
.service summary { display: grid; grid-template-columns: 65px 1fr 180px 20px; align-items: center; gap: 20px; padding: 29px 0; cursor: pointer; list-style: none; }
.service summary::-webkit-details-marker { display: none; }
.service-number { font-family: 'Inter', sans-serif; font-size: 11px; color: var(--red); }
.service-title { font-size: 25px; font-weight: 450; letter-spacing: -.035em; line-height: 1.35; }
.service-category { font-family: 'Inter', sans-serif; font-size: 10px; letter-spacing: .06em; color: #858585; }
.service-toggle { width: 15px; height: 15px; position: relative; }
.service-toggle::before, .service-toggle::after { content: ''; position: absolute; left: 0; top: 7px; height: 1px; width: 13px; background: #444; }
.service-toggle::after { transform: rotate(90deg); }
.service[open] .service-toggle::after { transform: rotate(0); }
.service-body { display: grid; grid-template-columns: 1.1fr 1fr; margin-left: 85px; gap: 85px; padding-bottom: 33px; }
.service-body p { font-size: 15px; line-height: 1.95; color: var(--muted); max-width: 410px; }
.inline-link { display: inline-flex; align-items: center; gap: 25px; font-size: 13px; margin-top: 20px; }
.inline-link span { font-size: 17px; }
.service-body ul { font-size: 14px; line-height: 1.8; color: #555; padding-top: 3px; }
.service-body li+li { margin-top: 9px; }
.service-body li::before { content: '—'; margin-right: 13px; color: #aaa; }

.approach-section>.wrap { border-top: 1px solid var(--line); }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 38px; margin-top: 52px; }
.process-grid article { display: flex; flex-direction: column; }
.process-top { display: flex; align-items: center; justify-content: space-between; border-top: 1px solid #cfcfca; padding-top: 13px; font-size: 11px; color: var(--red); }
.process-top span:last-child { display: none; }
.process-grid h3 { font-size: 27px; letter-spacing: -.04em; margin-top: 23px; }
.process-grid p { font-size: 15px; color: var(--muted); line-height: 1.9; margin-top: 16px; }
.process-deliverable { display: none; }

.about-section { border-top: 1px solid var(--line); }
.about-section>.eyebrow { margin-bottom: 35px; }
.about-main { display: grid; grid-template-columns: 1.2fr 1fr; gap: 80px; }
.about-main h2 { font-size: clamp(33px, 3.65vw, 49px); }
.large-copy { font-size: 20px; line-height: 1.75; letter-spacing: -.025em; }
.about-copy>p+p { font-size: 15px; color: var(--muted); line-height: 1.95; margin-top: 22px; }
.engagements { display: flex; flex-wrap: wrap; gap: 7px 19px; margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--line); }
.engagements span { font-size: 11px; color: #777; }

.contact-section { border-top: 1px solid var(--line); }
.contact-inner { display: grid; grid-template-columns: 1.2fr 1fr; gap: 80px; padding-block: 90px 98px; }
.contact-inner h2 { font-size: clamp(48px, 5.4vw, 74px); margin-top: 23px; }
.contact-copy { padding-top: 37px; }
.contact-copy>p { font-size: 16px; line-height: 1.9; max-width: 310px; color: var(--muted); }
.contact-email { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-bottom: 12px; margin-top: 22px; border-bottom: 1px solid #c8c8c3; font-size: clamp(25px, 2.5vw, 34px); font-weight: 400; letter-spacing: -.04em; }
.contact-email>span { font-size: 27px; color: var(--red); }
.contact-subtext { display: block; font-size: 11px; color: #858585; margin-top: 11px; }
.booking { border-top: 1px solid var(--line); margin-top: 32px; }
.booking summary { cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 15px; font-size: 13px; padding-top: 15px; color: #727272; }
.booking summary::-webkit-details-marker { display: none; }
.booking summary>span { font-size: 15px; line-height: 1.3; color: var(--red); }
.booking-body { padding-top: 20px; }
.booking-body>p:first-child { display: flex; justify-content: space-between; font-size: 14px; }
.booking-body .button { margin-top: 15px; }
.booking-note { font-size: 12px; color: var(--muted); margin-top: 12px; max-width: 300px; }
.booking-status { font-size: 13px; margin-top: 15px; }
.site-footer { border-top: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; gap: 30px; padding-block: 30px; }
.site-footer .wordmark { font-size: 21px; letter-spacing: -1.1px; }
.site-footer>span, .site-footer>a:last-child { font-size: 11px; color: #858585; }

@media(min-width:1600px) { .hero { padding-top: 125px; } .hero h1 { font-size: 92px; } .hero-bottom { margin-top: 130px; } }
@media(max-width:1100px) {
  .wrap { width: calc(100% - 72px); }
  .hero { padding-top: 85px; }
  .hero h1 { font-size: clamp(44px, 6.2vw, 68px); }
  .section-space { padding-block: 85px; }
  .service summary { grid-template-columns: 40px 1fr 160px 16px; gap: 15px; }
  .service-title { font-size: 21px; }
  .service-body { margin-left: 55px; gap: 45px; }
  .section-heading { grid-template-columns: 1fr 2.3fr; gap: 35px; }
  .about-main, .contact-inner { gap: 40px; }
  .process-grid { gap: 26px; }
  .site-footer>span:nth-child(2) { display: none; }
}
@media(max-width:760px) {
  .wrap { width: calc(100% - 44px); }
  .site-header { height: 84px; gap: 20px; }
  .wordmark { font-size: 28px; letter-spacing: -1.5px; }
  .desktop-nav, .header-contact { display: none; }
  .menu-button { display: flex; flex-direction: column; align-items: flex-end; gap: 6px; border: 0; background: none; padding: 12px 0 12px 12px; }
  .menu-button>span { display: block; width: 22px; height: 1px; background: #333; }
  .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); }
  .hero { padding-top: 70px; }
  .hero .eyebrow { font-size: 10px; letter-spacing: .14em; }
  .hero h1 { font-size: clamp(30px, 7.8vw, 55px); margin-top: 26px; line-height: 1.22; letter-spacing: -.05em; }
  .hero-description { font-size: 16px; max-width: 355px; margin-top: 26px; }
  .hero-actions { gap: 21px; margin-top: 28px; }
  .button { padding: 14px 17px; gap: 23px; font-size: 12px; }
  .text-link { font-size: 12px; gap: 16px; }
  .hero-bottom { margin-top: 72px; padding-bottom: 20px; font-size: 10px; grid-template-columns: 1fr auto; }
  .hero-bottom>span:last-child { display: none; }
  .hero-bottom>a { font-size: 19px; padding-right: 0; }
  .section-space { padding-block: 64px; }
  .section-heading { grid-template-columns: 1fr; gap: 22px; margin-bottom: 36px; }
  .section-heading>.eyebrow { padding-top: 0; }
  .eyebrow { font-size: 10px; }
  h2 { font-size: clamp(32px, 7.8vw, 45px); }
  .section-heading>div>p { font-size: 15px; margin-top: 20px; max-width: 360px; }
  .service summary { grid-template-columns: 23px 1fr 15px; gap: 10px; padding-block: 24px; }
  .service-title { font-size: 21px; letter-spacing: -.045em; }
  .service-category { display: none; }
  .service-number { font-size: 10px; }
  .service-body { grid-template-columns: 1fr; margin-left: 33px; gap: 22px; padding-bottom: 28px; }
  .service-body p { font-size: 14px; }
  .service-body ul { font-size: 14px; }
  .process-grid { grid-template-columns: 1fr 1fr; gap: 34px 26px; margin-top: 36px; }
  .process-grid h3 { font-size: 25px; margin-top: 19px; }
  .process-grid p { font-size: 14px; margin-top: 13px; }
  .about-section>.eyebrow { margin-bottom: 25px; }
  .about-main { grid-template-columns: 1fr; gap: 30px; }
  .about-main h2 { font-size: clamp(32px, 7.8vw, 45px); }
  .large-copy { font-size: 18px; }
  .about-copy>p+p { font-size: 14px; margin-top: 17px; }
  .engagements { gap: 7px 16px; }
  .engagements span { font-size: 8px; }
  .contact-inner { grid-template-columns: 1fr; gap: 28px; padding-block: 65px; }
  .contact-inner h2 { font-size: 54px; margin-top: 24px; }
  .contact-copy { padding-top: 0; }
  .contact-copy>p { font-size: 15px; }
  .contact-email { font-size: 28px; margin-top: 20px; }
  .booking { margin-top: 27px; }
  .site-footer { padding-block: 28px; gap: 15px; }
  .site-footer .wordmark { font-size: 20px; }
  .site-footer>a:last-child { display: none; }
}
@media(max-width:360px) { .hero-actions { flex-direction: column; gap: 16px; } .service-title { font-size: 19px; } .contact-email { font-size: 25px; } }
@media(prefers-reduced-motion:reduce) { html { scroll-behavior: auto; } *,*::before,*::after { transition: none!important; } }

/* Restrained Swiss accents and existing consultation controls. */
.section-heading>.eyebrow, .about-section>.eyebrow, .contact-inner .eyebrow { color: var(--red); }
.site-footer .wordmark img { width: 125px; }
.booking-body .unit-price { display: flex; justify-content: space-between; gap: 16px; font-size: 14px; }
.unit-price>span { color: var(--muted); }
.quantity-line { display: flex; justify-content: space-between; align-items: center; gap: 18px; margin-top: 20px; font-size: 14px; }
.quantity-control { display: flex; align-items: stretch; border: 1px solid var(--line); }
.quantity-control button { width: 38px; height: 40px; padding: 0; border: 0; background: white; font-size: 20px; }
.quantity-control input { width: 52px; height: 40px; text-align: center; border: 0; border-inline: 1px solid var(--line); background: white; color: var(--ink); font: inherit; appearance: textfield; -moz-appearance: textfield; }
.quantity-control input::-webkit-inner-spin-button, .quantity-control input::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }
.quantity-control button:disabled { opacity: .3; cursor: default; }
.quantity-control input:disabled { opacity: .6; }
.booking-total { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; margin-top: 18px; font-size: 14px; }
.booking-total strong { font-size: 22px; font-weight: 500; letter-spacing: -.03em; }
.booking-body .button:disabled { opacity: .55; }
@media(max-width:760px) {
 .wordmark img { width: 145px; }
 .site-footer .wordmark img { width: 112px; }
 .process-grid { gap: 34px 24px; }
 .engagements span { font-size: 10px; }
}
@media(max-width:360px) {
 .process-grid { grid-template-columns: 1fr; }
 .quantity-line { gap: 10px; }
 .quantity-control button { width: 34px; }
}