@font-face{font-family:Inter;src:url('assets/fonts/inter-latin-variable.woff2') format('woff2');font-style:normal;font-weight:100 900;font-display:swap}
/* Approved coordinate systems: desktop 1536x1024, mobile 809x1942. */
/* The chapter rail is the visible scroll indicator from the mockup.
   Keep native wheel/touch/keyboard scrolling, without a 15px artwork crop. */
html{scrollbar-width:none}html::-webkit-scrollbar{display:none}
:root{color-scheme:light;--ink:#07131b;--cyan:#039cca;--muted:#50617a;--unit:calc(100vw / 1536);--rail:calc(192 * var(--unit));--gutter:calc(60 * var(--unit));--hero-height:max(100svh,calc(1024 * var(--unit)))}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body{position:relative;isolation:isolate;margin:0;background:#f0f4f7;color:var(--ink);font:400 18px/1.5 Inter,Arial,sans-serif}a{color:inherit;text-decoration:none}button{font-family:Inter,Arial,sans-serif;cursor:pointer}button,a{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible{outline:3px solid #007496;outline-offset:5px}img{max-width:100%;height:auto}svg{flex-shrink:0}[hidden]{display:none!important}.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;top:12px;left:calc(var(--rail) + 24px);transform:translateY(-160%);z-index:100;background:white;padding:12px}.skip-link:focus{transform:none}
/* No whitening, transparency or gradient masks on the exact artwork. */
.scene-layer{position:fixed;inset:0;z-index:-1;pointer-events:none;background:#eef3f6}.scene-layer picture{position:absolute;inset:0;display:block}.scene-poster,.scene-canvas{position:absolute;width:100%;height:100%;inset:0}.scene-poster{object-fit:cover;object-position:center;opacity:1;transition:none}.scene-canvas{mask-image:none;-webkit-mask-image:none;opacity:1}.scene-layer[data-webgl=ready] .scene-poster{opacity:0}.motion-sober .scene-poster{opacity:1!important}.motion-sober .scene-canvas{display:none}
.site-header{position:fixed;inset:0 auto 0 0;width:var(--rail);z-index:20;display:flex;flex-direction:column;padding:calc(31 * var(--unit)) calc(24 * var(--unit));background:transparent;border:0}.brand{display:block;width:calc(144 * var(--unit));flex-shrink:0}.brand-logo{display:block;width:100%;height:auto;mix-blend-mode:multiply}.menu-toggle,.mobile-progress{display:none}.site-nav{flex:1;display:flex;flex-direction:column}.chapter-links{list-style:none;padding:0;margin:calc(68 * var(--unit)) 0 0}.chapter-links li{margin:0 0 calc(44 * var(--unit))}.chapter-links a{position:relative;display:flex;flex-direction:column;line-height:1.5;min-height:max(54px,calc(60 * var(--unit)));padding-left:calc(13 * var(--unit));color:var(--muted);font-size:clamp(14px,calc(18 * var(--unit)),23px)}.chapter-links a:before{content:'';position:absolute;left:calc(-12 * var(--unit));top:0;width:3px;height:calc(56 * var(--unit));background:transparent}.chapter-number{font-size:clamp(15px,calc(20 * var(--unit)),25px);font-weight:600}.chapter-links a[aria-current]{color:var(--ink);font-weight:700}.chapter-links a[aria-current]:before{background:var(--cyan)}.chapter-links a[aria-current] .chapter-number{color:#006b8b}.rail-client{margin-top:auto;display:flex;align-items:center;gap:calc(15 * var(--unit));min-height:44px;font-size:clamp(14px,calc(18 * var(--unit)),23px);line-height:1.25;padding-bottom:calc(35 * var(--unit))}.rail-client svg{width:calc(26 * var(--unit));min-width:20px}
main{margin-left:var(--rail)}.intro{position:relative;min-height:var(--hero-height);padding:0 var(--gutter)}.intro-copy{position:absolute;top:calc(160 * var(--unit));left:var(--gutter);right:var(--gutter)}.intro h1{position:relative;width:calc(1030 * var(--unit));max-width:100%;font-weight:800;letter-spacing:-.058em;margin:0;line-height:1.02}.heading-opening{display:block;font-size:calc(89 * var(--unit))}.heading-promise{display:block;width:113%;font-size:calc(85 * var(--unit));line-height:.98;transform:scaleX(.885);transform-origin:left top}.promise-start,.promise-detail{display:inline}.promise-end{display:block}.intro-subtitle{position:absolute;top:calc(264 * var(--unit));left:0;width:calc(920 * var(--unit));max-width:100%;font-size:calc(30 * var(--unit));line-height:1.4;margin:0;color:#182e4a;letter-spacing:-.03em}
.countdown{position:absolute;top:calc(536 * var(--unit));left:var(--gutter);width:calc(650 * var(--unit));max-width:calc(100% - 2 * var(--gutter));margin:0}.countdown-status{font-size:clamp(14px,calc(22 * var(--unit)),28px);font-weight:600;line-height:1.4;margin:0 0 calc(16 * var(--unit));color:#233650}.countdown-date strong{font-weight:inherit}.countdown-timer{display:grid;grid-template-columns:160fr 154fr 168fr 160fr;width:calc(642 * var(--unit));max-width:100%}.countdown-timer>div{display:flex;flex-direction:column;align-items:flex-start;position:relative}.countdown-timer>div+div:before{content:'';position:absolute;height:calc(58 * var(--unit));width:1px;background:#b5c3d1;left:calc(-36 * var(--unit));top:calc(16 * var(--unit))}.countdown-timer>div:nth-child(3):before{left:calc(-34 * var(--unit))}.countdown-timer>div:nth-child(4):before{left:calc(-32 * var(--unit))}.countdown-value{font-size:calc(84 * var(--unit));line-height:1.08;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:-.055em}.countdown-unit{font-size:clamp(11px,calc(17 * var(--unit)),22px);letter-spacing:.035em;color:#536580;margin-top:calc(5 * var(--unit))}[data-countdown-expired]{font-size:16px;max-width:600px}
.contact-actions{position:absolute;top:calc(777 * var(--unit));left:var(--gutter);right:var(--gutter);display:flex;align-items:center;gap:calc(17 * var(--unit));flex-wrap:wrap;margin:0}.contact-chip,.button{display:inline-flex;align-items:center;justify-content:center;gap:calc(18 * var(--unit));min-height:max(44px,calc(57 * var(--unit)));padding:calc(14 * var(--unit)) calc(22 * var(--unit));border:1px solid transparent;border-radius:999px;font-size:clamp(14px,calc(18 * var(--unit)),23px);font-weight:500;line-height:1.3;white-space:nowrap;transition:background .2s}.contact-chip{background:rgba(255,255,255,.92);color:#112743}.contact-chip:hover{background:#fff}.contact-chip.phone{width:calc(229 * var(--unit))}.contact-chip.email{width:calc(266 * var(--unit))}.contact-chip.portal{width:calc(194 * var(--unit));border-color:#142d45;background:transparent}.contact-chip svg{width:calc(24 * var(--unit));height:calc(24 * var(--unit));min-width:20px;min-height:20px}.button.primary{background:var(--cyan);color:white;text-shadow:0 1px 2px #123846,0 0 1px #123846;width:calc(288 * var(--unit));justify-content:center;font-weight:600;box-shadow:0 8px 25px rgba(3,156,202,.13)}.button.primary:hover{background:#00afd8}.cta-plane{display:block;width:calc(26 * var(--unit));height:calc(26 * var(--unit))}.cta-arrow,.motion-eye,.icon-filled,.date-period{display:none}
.motion-controls{position:fixed;bottom:calc(20 * var(--unit));left:calc(var(--rail) + var(--gutter));display:flex;align-items:center;gap:calc(28 * var(--unit));z-index:25;background:transparent;padding:0;border:0;border-radius:0;backdrop-filter:none}.motion-controls button{border:0;background:transparent;display:flex;align-items:center;gap:calc(11 * var(--unit));min-height:44px;color:#122f47;font-size:clamp(12px,calc(14 * var(--unit)),18px);line-height:1.3;padding:0}.motion-controls button svg{width:calc(24 * var(--unit));height:calc(24 * var(--unit));min-width:20px;min-height:20px}.motion-controls button+button{position:relative;padding-left:calc(28 * var(--unit))}.motion-controls button+button:before{content:'';position:absolute;left:0;top:11px;height:22px;width:1px;background:#9bafbd}
.site-footer{position:fixed;right:calc(58 * var(--unit));bottom:calc(36 * var(--unit));z-index:26;font-size:14px;line-height:1.4;color:#112743}.site-footer p{margin:0}.codebox-credit a{display:inline-block;line-height:20px;min-height:44px;padding:12px 0;margin:-12px 0;font-weight:400}.site-footer a:hover,.site-footer a:focus-visible{text-decoration:underline;text-underline-offset:4px}.legal-credit{position:absolute;right:0;bottom:34px;white-space:nowrap;font-size:11.5px}.legal-credit a{display:inline-flex;align-items:center;min-height:44px;text-decoration:underline;text-underline-offset:3px}
.secondary-section{min-height:72svh;padding:120px var(--gutter);max-width:1050px;background:rgba(245,248,250,.94)}.secondary-section h2{font-size:clamp(42px,4.8vw,74px);font-weight:800;letter-spacing:-.055em;line-height:1.05;margin:0 0 48px}.secondary-section>p{max-width:650px;font-size:22px;color:#203c51}.expertise-list{list-style:none;padding:0;margin:0 0 40px;max-width:650px}.expertise-list li{font-size:clamp(23px,2.4vw,36px);padding:20px 0;border-bottom:1px solid #9bb3c0;letter-spacing:-.035em}.text-link{display:inline-flex;align-items:center;gap:22px;font-size:18px;font-weight:600;min-height:44px;border-bottom:1px solid #039cca;padding:12px 0}.text-link:hover{color:#006582}.large-contact{display:block;font-size:clamp(22px,3vw,38px);font-weight:600;letter-spacing:-.04em;max-width:100%;overflow-wrap:anywhere;margin:16px 0;min-height:44px}.contact-section .text-link{margin-top:36px}
/* Tablet desktop: actions may wrap; fixed UI must never overlap. */
@media(min-width:801px) and (max-width:1100px){.contact-actions{gap:12px}.contact-chip,.button.primary{width:auto;min-width:0;padding:12px 16px}.intro-subtitle{font-size:clamp(18px,calc(30 * var(--unit)),24px)}.site-footer{position:absolute;top:calc(var(--hero-height) - 96px);bottom:auto;left:calc(var(--rail) + var(--gutter));right:24px;font-size:13px}.legal-credit{position:static;white-space:normal;font-size:12px}.motion-controls{position:absolute;top:calc(var(--hero-height) - 168px);bottom:auto}}
@media(max-width:800px){
:root{--unit:calc(100vw / 809);--rail:0px;--gutter:calc(90 * var(--unit));--hero-height:max(100svh,calc(1942 * var(--unit)))}
.scene-layer{position:absolute;inset:0 0 auto;height:calc(1942 * var(--unit));background:#dce5eb}.scene-poster{object-position:center;opacity:1}.scene-canvas{opacity:1;mask-image:none;-webkit-mask-image:none}
.site-header{width:100%;height:calc(230 * var(--unit));inset:0 0 auto;padding:calc(30 * var(--unit)) calc(81 * var(--unit));flex-direction:row;align-items:flex-start;justify-content:space-between;pointer-events:none}.brand{pointer-events:auto;width:calc(146 * var(--unit))}.menu-toggle{position:absolute;right:calc(40 * var(--unit));top:calc(39 * var(--unit));pointer-events:auto;color:#fff;border:0;background:transparent;border-radius:0;padding:0;flex-direction:column;align-items:center;gap:0;font-size:clamp(12px,calc(24 * var(--unit)),24px);line-height:1.25;min-width:44px;min-height:44px;text-shadow:0 1px 3px rgba(0,0,0,.5)}.menu-toggle svg{width:36px;height:28px}.menu-toggle svg path{stroke-width:1}.js .menu-toggle{display:flex}.site-nav{pointer-events:auto;position:absolute;top:calc(235 * var(--unit));left:var(--gutter);right:24px;background:rgba(255,255,255,.98);padding:22px;box-shadow:0 12px 40px rgba(12,44,61,.12);border:1px solid #c9dbe6}.js .site-nav{display:none}.js .site-nav.is-open{display:flex}.chapter-links{margin:0}.chapter-links li{margin-bottom:14px}.chapter-links a{font-size:17px;min-height:46px;padding-left:12px}.chapter-links a:before{left:0;height:46px}.chapter-number{font-size:18px}.rail-client{margin-top:15px;padding:0;font-size:16px;gap:12px}.rail-client svg{width:22px}
.mobile-progress{display:block;position:absolute;top:0;left:calc(35 * var(--unit));width:1px;height:calc(1570 * var(--unit));background:#ccd5de;z-index:10}.mobile-progress a{position:absolute;left:calc(-35 * var(--unit));width:44px;height:44px;border-radius:50%}.mobile-progress a:nth-child(1){top:calc(218 * var(--unit) - 22px)}.mobile-progress a:nth-child(2){top:calc(340 * var(--unit) - 22px)}.mobile-progress a:nth-child(3){top:calc(459 * var(--unit) - 22px)}.mobile-progress a:after,.progress-end{content:'';position:absolute;left:calc(35 * var(--unit) - 3px);top:19px;width:6px;height:6px;border-radius:50%;background:#b8c2cc;box-shadow:0 0 0 2px #fff}.mobile-progress a[aria-current]:after{background:var(--cyan)}.mobile-progress a[aria-current]:before{content:'';position:absolute;left:calc(35 * var(--unit) - 3px);bottom:26px;width:6px;height:calc(108 * var(--unit));border-radius:99px;background:var(--cyan)}.progress-end{left:-3px;top:calc(577 * var(--unit))}
.intro-copy{top:calc(300 * var(--unit));left:var(--gutter);right:calc(20 * var(--unit))}.intro h1{width:calc(650 * var(--unit));max-width:100%;font-size:calc(61 * var(--unit));letter-spacing:-.047em;line-height:1.02}.heading-opening{font-size:inherit}.heading-promise{width:auto;font-size:inherit;line-height:1.02;transform:none}.promise-start,.promise-detail,.promise-end{display:block}.promise-detail{margin-top:calc(6 * var(--unit))}.intro h1:after{content:'';position:absolute;left:0;top:calc(265 * var(--unit));width:calc(62 * var(--unit));height:2px;background:var(--cyan)}.intro-subtitle{top:calc(292 * var(--unit));width:calc(510 * var(--unit));max-width:100%;font-size:calc(32 * var(--unit));line-height:1.25;letter-spacing:-.035em}.intro-subtitle span{display:block}
.countdown{top:calc(724 * var(--unit));width:calc(500 * var(--unit));max-width:calc(100% - var(--gutter));display:flex;flex-direction:column}.countdown-status{font-weight:400;order:2;font-size:clamp(12px,calc(26 * var(--unit)),26px);line-height:1.3;margin:calc(41 * var(--unit)) 0 0;max-width:calc(490 * var(--unit));letter-spacing:-.035em}.countdown-date{display:block}.countdown-date strong{font-weight:600}.countdown-timer{order:1;width:calc(472 * var(--unit));grid-template-columns:112fr 124fr 136fr 100fr}.countdown-value{font-size:calc(48 * var(--unit));line-height:1.3;letter-spacing:-.05em}.countdown-unit{font-size:clamp(10px,calc(21 * var(--unit)),21px);letter-spacing:-.025em;margin-top:calc(5 * var(--unit));color:#677991}.countdown-timer>div+div:before{height:calc(98 * var(--unit));left:calc(-28 * var(--unit));top:0}.countdown-timer>div:nth-child(3):before,.countdown-timer>div:nth-child(4):before{left:calc(-30 * var(--unit))}[data-countdown-expired]{font-size:clamp(12px,calc(26 * var(--unit)),20px);line-height:1.4;max-width:calc(490 * var(--unit))}
.contact-actions{top:calc(979 * var(--unit));right:var(--gutter);gap:0;flex-direction:column;align-items:flex-start}.button.primary{order:-1;min-height:44px;height:calc(88 * var(--unit));width:calc(356 * var(--unit));min-width:172px;padding:calc(18 * var(--unit)) calc(35 * var(--unit));font-size:clamp(12px,calc(26 * var(--unit)),26px);font-weight:400;justify-content:space-between;gap:calc(20 * var(--unit))}.cta-plane,.contact-chip .icon-outline{display:none}.contact-chip .icon-filled,.date-period{display:inline-block}.cta-arrow{display:block;width:calc(38 * var(--unit));height:calc(38 * var(--unit));min-width:18px;min-height:18px}.contact-chip,.contact-chip.phone,.contact-chip.email,.contact-chip.portal{width:auto;min-height:max(44px,calc(75 * var(--unit)));justify-content:flex-start;background:transparent;padding:0;border-radius:0;border:0;gap:calc(24 * var(--unit));font-size:clamp(12px,calc(26 * var(--unit)),26px);font-weight:400;white-space:normal}.contact-chip.phone{margin-top:max(calc(13 * var(--unit)),calc(30 * var(--unit) - 7.5px))}.contact-chip svg{box-sizing:content-box;padding:calc(14 * var(--unit));background:rgba(16,45,65,.08);border-radius:50%;width:calc(31 * var(--unit));height:calc(31 * var(--unit));min-width:0;min-height:0}.contact-chip:hover{background:transparent}
.motion-controls{position:absolute;top:max(calc(1366 * var(--unit)),calc(992 * var(--unit) + 180px));left:var(--gutter);bottom:auto;width:calc(243 * var(--unit));margin:0;padding:calc(18 * var(--unit)) 0 0;border-top:1px solid #b8cbd6;align-items:flex-start;flex-direction:column;gap:0}.motion-controls button{font-size:clamp(10px,calc(21 * var(--unit)),21px);gap:calc(22 * var(--unit));padding:0;min-height:44px;white-space:nowrap}.motion-controls button svg{box-sizing:content-box;padding:calc(14 * var(--unit));width:calc(28 * var(--unit));height:calc(28 * var(--unit));min-width:0;min-height:0;background:rgba(16,45,65,.09);border-radius:50%}.motion-controls button+button{padding-left:0}.motion-controls button+button:before,.pause-ring,.motion-sun{display:none}.motion-eye{display:block}.motion-controls [data-motion-pause] path{stroke-width:3}
.site-footer{position:absolute;top:calc(1830 * var(--unit));left:calc(45 * var(--unit));right:calc(35 * var(--unit));bottom:auto;color:#e7edf1;font-size:clamp(12px,calc(24 * var(--unit)),24px);padding-top:calc(22 * var(--unit));text-shadow:0 1px 3px rgba(0,0,0,.55)}.site-footer:before{content:'';position:absolute;left:0;top:0;width:calc(195 * var(--unit));height:1px;background:#c1d0d7}.credit-prefix{display:none}.codebox-credit a{display:inline-block;line-height:16px;min-height:44px;padding:14px 0;margin:-14px 0}.legal-credit{position:absolute;left:calc(225 * var(--unit));right:0;top:calc(13 * var(--unit));bottom:auto;white-space:normal;font-size:clamp(11px,calc(22 * var(--unit)),22px);line-height:1.35}.legal-credit a{min-height:44px}
.secondary-section{padding-top:90px;padding-bottom:80px;min-height:auto;background:#f0f4f7}.secondary-section h2{font-size:43px;margin-bottom:30px}.secondary-section>p{font-size:18px}.expertise-list li{font-size:22px;padding:16px 0}.skip-link{left:var(--gutter)}
html:not(.js) .site-header{position:relative;height:auto;flex-wrap:wrap;background:#fff}html:not(.js) .site-nav{position:static;flex-basis:100%;margin-top:24px;box-shadow:none}html:not(.js) .mobile-progress{display:none}html:not(.js) .intro{min-height:0;padding-top:32px;padding-bottom:60px}html:not(.js) .intro-copy,html:not(.js) .intro-subtitle,html:not(.js) .countdown,html:not(.js) .contact-actions{position:static}html:not(.js) .intro-subtitle{margin-top:30px}html:not(.js) .countdown,html:not(.js) .contact-actions{margin-top:32px}html:not(.js) .site-footer{position:static;padding:24px var(--gutter);color:var(--ink);text-shadow:none}html:not(.js) .site-footer:before{display:none}html:not(.js) .legal-credit{position:static}
}
@media(max-width:350px){.secondary-section h2{font-size:36px}.contact-chip{gap:10px}.contact-chip.email span{overflow-wrap:anywhere}.site-nav{left:28px;right:18px}}
@media(min-width:801px){.intro-copy{top:calc(157 * var(--unit))}.heading-opening{transform:scaleX(.925);transform-origin:left top}.heading-promise{line-height:.956}.promise-line{display:block;transform:scaleX(.946);transform-origin:left top}.rail-client{width:calc(164 * var(--unit));white-space:nowrap;gap:calc(18 * var(--unit))}}
@media(max-width:800px){.promise-line{display:contents;transform:none}}
@media(max-width:800px){.header-on-light .menu-toggle{color:var(--ink);text-shadow:none;background:rgba(255,255,255,.94)}}
/* Preserve the opening composition, then carry the same artwork through every
   chapter with a moving camera and light. No scroll interception. */
@media(max-width:800px){.scene-canvas{position:fixed;width:100vw;height:100svh}.secondary-section{background:rgba(245,248,250,.90)}}
.secondary-section{background:linear-gradient(90deg,rgba(245,248,250,.97)0%,rgba(245,248,250,.90)55%,rgba(245,248,250,.48)100%)}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}.scene-canvas{display:none}.scene-poster{opacity:1!important}}
@media print{.scene-layer,.motion-controls,.menu-toggle,.mobile-progress{display:none!important}.site-header{position:static;width:100%;background:white;padding:24px}.brand{width:90px}.site-nav{display:none}main{margin-left:0}.intro{min-height:0;padding:30px}.intro-copy,.intro-subtitle,.countdown,.contact-actions{position:static;width:auto;max-width:100%}.intro h1,.heading-opening,.heading-promise{font-size:38px;width:auto;transform:none}.promise-start,.promise-detail{display:inline}.intro h1:after{display:none}.intro-subtitle{font-size:20px;margin-top:20px}.countdown,.contact-actions{margin-top:30px}.secondary-section{padding:30px}.contact-actions{gap:16px}.contact-chip,.button.primary{width:auto;font-size:16px}.site-footer{position:static;padding:30px;color:var(--ink);text-shadow:none}.credit-prefix{display:inline}.legal-credit{position:static;font-size:12px}.site-footer:before{display:none}}

@media(min-width:1101px){.motion-controls{bottom:calc(32 * var(--unit))}}
/* Loïc's latest reference retains the rounded immersion toolbar. Keep it
   visible on short desktop screens while preserving the mockup composition. */
@media(min-width:801px){.motion-controls{position:fixed;top:auto;bottom:20px;background:rgba(248,251,253,.94);padding:8px 14px;border-radius:99px;backdrop-filter:blur(12px);box-shadow:0 2px 16px rgba(16,45,65,.06)}.motion-controls button{font-size:14px}.motion-controls button+button:before{top:11px}}
@media(max-width:800px){.motion-controls button{font-size:clamp(12px,calc(21 * var(--unit)),21px)}}
@media(min-width:801px) and (max-width:1100px){.site-footer{top:auto;bottom:100px}}
@media(max-width:800px){.motion-controls{width:max-content;max-width:calc(100vw - 2 * var(--gutter))}}