:root{color-scheme:dark;--bg:#152631;--fg:#f2f5f5;--sub:#b7c5cf;--line:#415563;--accent:#b6d7e8;--serif:Didot,"Bodoni MT","Times New Roman",serif;--sans:"Helvetica Neue",Helvetica,Arial,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:32px;-webkit-text-size-adjust:100%;background:var(--bg);color:var(--fg);font-family:var(--sans)}body{margin:0}a{color:inherit;text-underline-offset:5px}a:focus-visible,summary:focus-visible{outline:2px solid currentColor;outline-offset:6px}::selection{background:var(--accent);color:var(--bg)}.wrap{width:min(1440px,calc(100% - 112px));margin-inline:auto}.header{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-block:27px;border-bottom:1px solid var(--line)}.monogram{font-family:var(--serif);font-size:2.5rem;line-height:1;text-decoration:none;letter-spacing:-.08em}.header p,.header-contact{font-size:.875rem;margin:0}.header-contact{text-decoration:none}.header-contact span{margin-left:18px}.hero{padding-top:42px}.hero-top,.hero-bottom{display:flex;justify-content:space-between;gap:24px}.hero-top p{font-size:.75rem;text-transform:uppercase;letter-spacing:.14em;margin:0;color:var(--sub)}h1{font-family:var(--serif);font-size:clamp(4rem,12.2vw,11.8rem);font-weight:400;line-height:1.12;letter-spacing:-.055em;margin:27px 0 26px;white-space:nowrap}em{font-weight:400}h1 em{color:var(--accent)}.period{color:var(--accent)}.hero-bottom{align-items:center;margin-bottom:36px;font-size:.9375rem}.hero-bottom p{margin:0}.hero-bottom p a{text-decoration-thickness:1px}.discover{text-decoration:none;display:flex;gap:28px;padding-block:12px}.landscape{position:relative;margin:0;isolation:isolate;height:clamp(340px,38vw,560px);overflow:hidden;background:#202820}.landscape img{width:100%;height:100%;display:block;object-fit:cover;object-position:center 57%;filter:brightness(.64) saturate(.65)}.landscape:after{content:"";position:absolute;inset:0;z-index:0;background:linear-gradient(90deg,rgba(16,21,15,.42),transparent 80%),linear-gradient(0deg,rgba(0,0,0,.5),transparent 40%);pointer-events:none}.photo-title{position:absolute;z-index:1;top:12%;left:5%;font-family:var(--serif);font-size:clamp(3rem,5vw,5.3rem);line-height:1.05;letter-spacing:-.04em}.photo-title em{color:#f2f5f5}.landscape figcaption{position:absolute;z-index:1;bottom:28px;left:5%;right:5%;display:flex;justify-content:space-between;gap:20px;font-size:.8125rem}.about{margin-top:80px;background:var(--fg);color:var(--bg);padding-block:85px}.about-grid,.contact{display:grid;grid-template-columns:1fr 2fr;gap:45px}.section-label{font-size:.75rem;text-transform:uppercase;letter-spacing:.12em;margin:8px 0 0}h2{font-family:var(--serif);font-size:clamp(2.5rem,4.4vw,4.5rem);line-height:1.12;letter-spacing:-.045em;font-weight:400;margin:0}.bio{max-width:550px;line-height:1.8;font-size:1.0625rem;margin:28px 0;color:#435762}.company-link{display:flex;justify-content:space-between;align-items:center;gap:30px;max-width:550px;padding-block:19px;border-bottom:1px solid #b6c5cd;text-decoration:none}.company-link span:last-child{font-size:1.5rem}details{max-width:550px;margin-top:18px}summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;min-height:48px;font-size:.875rem}summary::-webkit-details-marker{display:none}summary span{font-size:1.3rem;transition:transform .2s}details[open] summary span{transform:rotate(45deg)}dl{margin:10px 0 0;padding-bottom:10px}dl>div{display:grid;grid-template-columns:120px 1fr;gap:20px;padding-block:12px;border-top:1px solid #d0dbe0;font-size:.875rem;line-height:1.5}dt{color:#536b79}dd{margin:0}.contact{padding-block:80px}.contact-content{display:grid;grid-template-columns:1.2fr 1fr;align-items:end;gap:50px}.contact h2{font-size:clamp(3rem,4.7vw,4.75rem)}.contact nav a{display:flex;justify-content:space-between;gap:30px;align-items:center;padding-block:20px;border-bottom:1px solid var(--line);text-decoration:none}.contact nav a span:last-child{font-size:1.5rem}a{transition:color .2s}a:hover{color:var(--accent)}.about a:hover{color:#28617d}footer{display:flex;justify-content:space-between;gap:25px;border-top:1px solid var(--line);padding-block:27px;color:var(--sub);font-size:.8125rem}footer p{margin:0}footer a{text-decoration:none}footer a span{margin-left:18px}.skip{position:absolute;top:-100px;left:20px;padding:14px;background:var(--fg);color:var(--bg);z-index:10}.skip:focus{top:12px}
@media(min-width:1800px){h1{font-size:12rem}}
@media(max-width:1000px){.wrap{width:calc(100% - 64px)}.about-grid,.contact{grid-template-columns:1fr 2.4fr;gap:25px}.contact-content{grid-template-columns:1fr;gap:25px}.contact nav{display:flex;gap:30px}.contact nav a{flex:1}.about{padding-block:64px}}
@media(max-width:640px){.wrap{width:calc(100% - 40px)}.header{padding-block:22px;gap:15px}.header p{margin-left:auto}.header-contact{display:none}.hero{padding-top:28px}.hero-top p:last-child{display:none}h1{white-space:normal;font-size:clamp(4.5rem,20vw,8rem);line-height:.98;margin:34px 0 27px}h1 em{display:inline-block}.hero-bottom{font-size:.875rem;align-items:start;gap:14px;margin-bottom:25px}.hero-bottom p{max-width:210px;line-height:1.7}.discover{gap:12px;white-space:nowrap;padding-top:3px}.landscape{height:390px}.landscape img{object-position:60% center}.photo-title{font-size:3.25rem;top:30px;left:25px}.landscape figcaption{bottom:23px;left:25px;right:25px}.landscape figcaption span:last-child{display:none}.about{margin-top:40px;padding-block:45px}.about-grid,.contact{grid-template-columns:1fr;gap:32px}h2{font-size:2.8rem}.bio{font-size:1rem;margin-top:24px}.contact{padding-block:45px}.contact h2{font-size:3.5rem}.contact nav{gap:24px}dl>div{grid-template-columns:90px 1fr;gap:12px}footer{font-size:.75rem;padding-block:22px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
@media print{html{background:white;color:black}.header-contact,.discover,.contact,footer,.skip{display:none}.wrap{width:100%}h1{font-size:5rem}.hero{padding-top:20px}.landscape{height:240px}.about{margin-top:25px;padding-block:20px}.about-grid{grid-template-columns:1fr 3fr}h2{font-size:2rem}.bio{line-height:1.5}}

/* Professional profile: readable chronology and education. */
.career{display:grid;grid-template-columns:1fr 2fr;gap:45px;padding-block:75px}.career-content{min-width:0}.career h2{font-size:clamp(2.5rem,3.8vw,4rem)}.timeline{list-style:none;margin:35px 0 0;padding:0}.timeline li{display:grid;grid-template-columns:145px 1fr;gap:25px;padding-block:26px;border-top:1px solid var(--line)}.timeline h3,.profile-extra h3{font-size:1.0625rem;line-height:1.45;font-weight:500;margin:0}.timeline p{font-size:1rem;line-height:1.7;margin:10px 0 0;color:var(--sub)}.timeline .dates{font-size:.8125rem;margin:3px 0 0}.timeline .employer{color:var(--accent);margin-top:5px}.education-section{background:#f2f5f5;color:#152631;--line:#d0dbe0;--sub:#435762;--accent:#28617d}.profile-extra{display:grid;grid-template-columns:1fr 1fr;gap:28px;padding-top:25px;border-top:1px solid var(--line)}.profile-extra p{font-size:.9375rem;line-height:1.8;color:var(--sub)}.contact-content{grid-template-columns:1fr 1fr}.contact h2{font-size:clamp(2.7rem,4vw,4rem)}
@media(max-width:1000px){.career{grid-template-columns:1fr 2.4fr;gap:25px}.contact-content{grid-template-columns:1fr}.contact nav{display:block}}
@media(max-width:640px){.career{grid-template-columns:1fr;gap:30px;padding-block:45px}.timeline li{grid-template-columns:1fr;gap:9px;padding-block:24px}.timeline{margin-top:25px}.profile-extra{grid-template-columns:1fr;gap:15px}.landscape{height:230px}.contact nav{display:block}}

/* Personal portrait, with its natural colours and no dark overlay. */
.about{margin-top:30px}.about-grid{grid-template-columns:1fr 1.25fr;gap:70px;align-items:center}.portrait-column{min-width:0}.portrait{margin:26px 0 0}.portrait img{display:block;width:100%;height:auto;aspect-ratio:4/5;object-fit:cover;object-position:54% 45%}.about-content{min-width:0}
@media(max-width:1000px){.about-grid{gap:35px;grid-template-columns:1fr 1.2fr}}
@media(max-width:640px){.about{margin-top:15px}.about-grid{grid-template-columns:1fr;gap:32px}.portrait{margin-top:22px}.portrait img{aspect-ratio:1/1;object-position:center}.hero-bottom{margin-bottom:20px}}

.section-nav{display:flex;justify-content:flex-end;flex-wrap:wrap;gap:12px 30px;padding-block:14px;border-bottom:1px solid var(--line)}.section-nav a{display:flex;align-items:center;gap:9px;min-height:44px;text-decoration:none;font-size:.875rem}.section-nav a span{color:var(--sub);font-size:.75rem}.interests{margin-top:18px}
@media(max-width:640px){.section-nav{justify-content:space-between;gap:0 12px;padding-block:8px}.section-nav a{font-size:.8125rem;gap:6px}.hero{padding-top:8px}}

/* Unified masthead: identity and place on the left, navigation on the right. */
.header{gap:32px;padding-block:23px}.header-identity{display:flex;align-items:center;gap:22px;flex-shrink:0}.header .header-location{margin:0;padding-left:22px;border-left:1px solid var(--line);color:var(--sub);font-size:.8125rem;line-height:1.6}.header .section-nav{margin:0;padding:0;border:0;gap:24px;justify-content:flex-end}.header .section-nav a{gap:7px;font-size:.875rem}.header .section-nav a span{font-size:.6875rem;letter-spacing:.03em}.hero{padding-top:28px}
@media(max-width:900px){.header{flex-wrap:wrap;gap:14px;padding-block:20px 12px}.header .section-nav{flex-basis:100%;justify-content:space-between;gap:8px 18px}.header-identity{gap:18px}.header .header-location{padding-left:18px}.hero{padding-top:16px}}
@media(max-width:420px){.header .section-nav{gap:5px 12px}.header .section-nav a{font-size:.8125rem;gap:5px}.header .section-nav a span{font-size:.6875rem}}

/* Persistent navigation with anchor clearance. */
:root{--header-clearance:115px}html{scroll-padding-top:var(--header-clearance)}.header{position:sticky;top:0;z-index:20;background:rgba(21,38,49,.97);box-shadow:0 0 0 100vmax rgba(21,38,49,.97);clip-path:inset(0 -100vmax);backdrop-filter:blur(12px)}.section-nav a{position:relative}.section-nav a::after{content:"";position:absolute;bottom:3px;left:0;right:0;height:1px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .25s ease}.section-nav a:hover::after,.section-nav a[aria-current="location"]::after{transform:scaleX(1)}.section-nav a[aria-current="location"]{color:var(--accent)}
@media(max-width:900px){:root{--header-clearance:155px}}
@media(prefers-reduced-motion:reduce){.section-nav a::after{transition:none}}
@media print{.header{position:static;box-shadow:none;clip-path:none}}

.hero-bottom .hero-location{display:flex;align-items:center;gap:16px;color:var(--sub);font-size:.875rem;letter-spacing:.09em;max-width:none}.hero-location::before{content:"";width:34px;height:1px;background:var(--accent);flex-shrink:0}.hero-bottom{margin-top:4px;margin-bottom:40px}
@media(max-width:640px){.hero-bottom .hero-location{font-size:.8125rem;gap:12px}.hero-bottom{margin-bottom:28px}.hero-location::before{width:24px}}

/* Compact circular profile portrait. */
.about-grid{grid-template-columns:minmax(220px,320px) minmax(0,1fr);gap:clamp(40px,6vw,90px)}
.portrait{width:min(100%,280px);margin:28px auto 0;aspect-ratio:1;border-radius:50%;overflow:hidden}
.portrait img{width:100%;height:100%;aspect-ratio:1;object-fit:cover;object-position:54% 38%}
@media(max-width:900px){.about-grid{grid-template-columns:minmax(180px,240px) minmax(0,1fr);gap:32px}.portrait{width:min(100%,220px)}}
@media(max-width:640px){.about-grid{grid-template-columns:1fr;gap:30px}.portrait{width:min(100%,200px);margin:24px auto 0}.portrait img{aspect-ratio:1;object-position:54% 38%}}

/* Balanced portrait and introduction. */
.about-grid{grid-template-columns:minmax(220px,280px) minmax(0,680px);justify-content:center;align-items:start;gap:clamp(40px,6vw,88px)}
.portrait-column{align-self:start}.portrait-column .section-label{margin-top:0}.portrait{margin-top:24px}
.about-content{width:100%;max-width:680px}
.about-content h2{font-size:clamp(2.5rem,3.3vw,3.375rem);line-height:1.14;max-width:100%;text-wrap:balance}
.about-content .bio,.about-content .company-link{max-width:100%}
.about-content .bio{margin-block:24px;line-height:1.75}
.about-content .interests{margin-top:0}
.about-content .company-link{margin-top:8px}
@media(max-width:1000px){.about-grid{grid-template-columns:minmax(180px,220px) minmax(0,1fr);gap:36px}.portrait{width:min(100%,220px)}}
@media(max-width:640px){.about-grid{grid-template-columns:minmax(0,1fr);gap:30px}.portrait{width:min(100%,200px);margin:24px auto 0}.about-content h2{font-size:2.5rem}.about-content .bio{margin-block:20px}}

/* Company call to action. */
.about-content .company-link{
 display:inline-flex;align-items:center;justify-content:space-between;gap:30px;
 width:auto;max-width:100%;min-height:56px;margin-top:14px;padding:15px 22px;
 border:1px solid var(--bg);border-radius:6px;background:var(--bg);color:var(--fg);
 font-size:.9375rem;line-height:1.5;text-decoration:none;
 box-shadow:0 3px 10px rgba(21,38,49,.08);
 transition:border-color .3s ease,box-shadow .3s ease;
}
.about-content .company-link span:last-child{
 display:inline-block;font-size:1.4rem;line-height:1;
 transition:transform .25s cubic-bezier(.2,.7,.3,1);
}
@media(hover:hover){
 .about-content .company-link:hover{border-color:#b6d7e880;color:var(--fg)}
 .about-content .company-link:hover span:last-child{transform:translate(3px,-3px)}
}
.about-content .company-link:focus-visible{outline:2px solid var(--bg);outline-offset:5px}
.about-content .company-link:active{transform:none}
@media(prefers-reduced-motion:reduce){
 .about-content .company-link,.about-content .company-link span:last-child{transition:none;transform:none}
 .about-content .company-link:hover span:last-child{transform:none}
}

.arrow-icon{display:block;width:1.25em;height:1.25em;flex-shrink:0}
.back-to-top{position:fixed;right:max(22px,env(safe-area-inset-right));bottom:calc(22px + env(safe-area-inset-bottom));z-index:30;display:flex;align-items:center;justify-content:center;width:48px;height:48px;border:1px solid #b6d7e8;border-radius:50%;background:#152631;color:#f2f5f5;box-shadow:0 4px 18px #0003;text-decoration:none;transition:background .2s,transform .2s}
.back-to-top:hover{background:#28495b;color:#fff;transform:translateY(-2px)}
footer{padding-bottom:90px}
@media(prefers-reduced-motion:reduce){.back-to-top:hover{transform:none}}
@media print{.back-to-top{display:none}}

/* Programmatic section focus keeps keyboard navigation without a block outline. */
main[tabindex="-1"]:focus,section[tabindex="-1"]:focus{outline:none}

.back-to-top[hidden]{display:none}
@media screen and (min-width:1001px){h1{font-size:clamp(4rem,10vw,9.6rem)}}
@media screen and (min-width:1800px){h1{font-size:9.8rem}}

/* Translucent navigation surfaces with an opaque fallback. */
.header{width:100%;padding-inline:max(56px,calc((100% - 1440px)/2));background:#152631;box-shadow:0 8px 30px #06151c16;clip-path:none;border-bottom:1px solid #dceef52b}
@supports ((backdrop-filter:blur(20px)) or (-webkit-backdrop-filter:blur(20px))){
 .header{background:linear-gradient(135deg,#263e4bba,#152631d6);-webkit-backdrop-filter:blur(24px) saturate(140%);backdrop-filter:blur(24px) saturate(140%)}
 .back-to-top{background:#152631b8;-webkit-backdrop-filter:blur(18px) saturate(140%);backdrop-filter:blur(18px) saturate(140%);box-shadow:inset 0 1px 0 #ffffff30,0 7px 24px #06151c26}
 .about-content .company-link{background:linear-gradient(135deg,#294c60e8,#152631e8);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border-color:#ffffff40;box-shadow:inset 0 1px 0 #ffffff30,0 5px 18px #15263126}
}
.header .section-nav a{padding-inline:10px;border-radius:22px;transition:background .25s,color .25s}
.header .section-nav a[aria-current="location"]{background:transparent;box-shadow:none}
.header .section-nav a::after{left:12px;right:12px}
.organization{display:flex;align-items:flex-start;gap:18px;min-width:0}.org-content{min-width:0;flex:1}
.org-logo{display:flex;align-items:center;justify-content:center;width:64px;height:64px;flex:0 0 64px;border-radius:50%;overflow:hidden;background:#fff;box-shadow:0 0 0 1px #a7bfce30,0 4px 14px #00000010}
.org-logo img{width:100%;height:100%;object-fit:contain;padding:8px}.org-yendi{background:#080808}.org-changins{background:#152631}.org-recommerce{background:#246f73}.org-recommerce img{padding:12px;image-rendering:auto}
.timeline .positions{list-style:none;padding:0 0 0 18px;margin:22px 0 0;border-left:1px solid var(--line)}
.timeline .positions li{display:block;border:0;padding:0 0 22px;position:relative}.timeline .positions li:last-child{padding-bottom:0}.positions li::before{content:"";position:absolute;left:-22px;top:8px;width:7px;height:7px;border-radius:50%;background:var(--accent)}
.positions h4{font-size:1.0625rem;line-height:1.5;font-weight:500;margin:6px 0 0}.timeline .positions .dates{margin:0}
@media(max-width:1000px){.header{padding-inline:32px}.header .section-nav{gap:8px}.organization{gap:14px}.org-logo{width:54px;height:54px;flex-basis:54px}}
@media(max-width:640px){.header{padding-inline:20px}.header .section-nav a{padding-inline:5px}.org-logo{width:52px;height:52px;flex-basis:52px}.timeline>li>.dates{margin-bottom:6px}.positions h4{font-size:1rem}}
@media(prefers-reduced-transparency:reduce){.header,.back-to-top,.about-content .company-link{background:#152631;backdrop-filter:none;-webkit-backdrop-filter:none}}
@media print{.header{background:white;box-shadow:none;backdrop-filter:none}.org-logo{box-shadow:none}}

/* Full-width panels slide over the preceding section. */
.section-position{height:0;pointer-events:none}
.stack-panel{position:sticky;top:var(--stack-top);z-index:var(--stack-order);box-shadow:0 -18px 36px -24px #07182270}
#parcours.stack-panel,#contact.stack-panel{width:100%;padding-inline:max(56px,calc((100% - 1440px)/2));background:var(--bg)}
#formation.stack-panel,#a-propos.stack-panel{background:var(--fg)}
@media(max-width:1000px){#parcours.stack-panel,#contact.stack-panel{padding-inline:32px}}
@media(max-width:640px){#parcours.stack-panel,#contact.stack-panel{padding-inline:20px}}
@media print{.stack-panel{position:static;box-shadow:none}}

/* Keep contact links outside the floating button's touch area. */
.contact-content{min-width:0}
.contact nav{min-width:0;margin-right:calc(64px + env(safe-area-inset-right,0px))}
.contact nav a{gap:16px;min-height:48px}
.contact nav a>span:first-child{min-width:0;overflow-wrap:break-word}
.contact nav a>span:last-child{flex-shrink:0}
@media print{.contact nav{margin-right:0}}

/* Stable gradient; hover is a soft light overlay, without layout movement. */
.about-content .company-link{position:relative;isolation:isolate;overflow:hidden}
.about-content .company-link::before{content:"";position:absolute;inset:0;border-radius:inherit;background:linear-gradient(120deg,#ffffff12,#ffffff05);opacity:0;pointer-events:none;transition:opacity .3s ease;z-index:-1}
@media(hover:hover){.about-content .company-link:hover::before{opacity:1}}
@media(prefers-reduced-motion:reduce){.about-content .company-link::before{transition:none}}

/* Compact, single-line mobile masthead. */
@media(max-width:900px){
 .header{flex-wrap:nowrap;gap:16px;padding-block:10px}
 .header-identity{flex:0 0 auto}
 .header .monogram{font-size:2rem}
 .header .section-nav{flex:1 1 auto;flex-basis:auto;min-width:0;flex-wrap:nowrap;justify-content:flex-end;gap:12px}
 .header .section-nav a{white-space:nowrap;flex:0 0 auto;padding-inline:4px}
}
@media(max-width:640px){
 .header{padding-inline:14px;gap:12px}
 .header .monogram{font-size:1.75rem}
 .header .section-nav{justify-content:space-between;gap:6px;overflow-x:auto;scrollbar-width:none}
 .header .section-nav::-webkit-scrollbar{display:none}
 .header .section-nav a{font-size:.8125rem;padding-inline:2px;min-height:44px}
 .header .section-nav a span{display:none}
 .header .section-nav a::after{left:2px;right:2px}
}

/* Location signature beneath the name. */
.hero-bottom{margin-top:-8px;margin-bottom:34px}
.hero-bottom .hero-location{display:inline-flex;align-items:center;gap:9px;letter-spacing:.015em;font-size:.9375rem;line-height:1.5;color:var(--fg)}
.hero-location::before{content:none}
.location-icon{width:19px;height:19px;flex:none;color:var(--accent)}
.location-country{color:var(--sub)}
@media(max-width:640px){.hero-bottom{margin-top:-5px;margin-bottom:27px}.hero-bottom .hero-location{font-size:.875rem;gap:8px}.location-icon{width:17px;height:17px}}

.location-country{color:inherit}

/* Maintain contrast when touch browsers retain hover after activation. */
.about-content .company-link:link,
.about-content .company-link:visited,
.about-content .company-link:hover,
.about-content .company-link:focus,
.about-content .company-link:active{color:#f2f5f5}