:root{
  /* Palette Cognivaya */
  --navy:#12284c; --navy-deep:#0a1730; --navy-soft:#1d3a66;
  --blue:#2563eb; --blue-light:#3b82f6;
  --gold:#c5a059; --gold-light:#dbb877; --gold-deep:#a9824a;

  --paper:#f3f5fa; --paper-deep:#eef1f7;
  --ink:#101b30; --ink-soft:#64748b;
  --blue-deep:var(--navy);
  --line:#e7eaf1; --card:#ffffff;
  --radius:20px; --radius-btn:13px;

  --shadow-sm:0 10px 26px -10px rgba(10,23,48,.14);
  --shadow:0 22px 55px -16px rgba(10,23,48,.18);
  --shadow-lift:0 26px 60px -14px rgba(10,23,48,.24);

  --font-display:'Plus Jakarta Sans','Inter',system-ui,sans-serif;
  --font-body:'Inter',system-ui,-apple-system,'Segoe UI',sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  line-height:1.6;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3{font-family:var(--font-display);color:var(--navy);font-weight:800;letter-spacing:-0.02em;}
a{color:var(--blue);}
img{max-width:100%;display:block;}
.mono{font-family:var(--font-body);font-weight:700;}
.eyebrow{
  font-family:var(--font-body);
  font-size:0.74rem;
  letter-spacing:0.08em;
  text-transform:uppercase;
  font-weight:800;
  color:var(--navy);
  background:var(--paper-deep);
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 13px;border-radius:999px;
  border:1px solid var(--line);
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--gold);flex:none;}

/* NAV */
header{
  position:sticky;top:0;z-index:50;
  background:linear-gradient(175deg,var(--navy-deep) 0%,var(--navy) 100%);
  box-shadow:0 12px 30px rgba(7,15,32,.18);
}
nav{
  max-width:1140px;margin:0 auto;padding:16px 28px;
  display:flex;align-items:center;justify-content:space-between;
}
.brand{font-family:var(--font-display);font-weight:800;font-size:1.1rem;color:#fff;text-decoration:none;letter-spacing:-0.02em;}
.brand span{color:var(--gold-light);}
.navlinks{display:flex;gap:28px;list-style:none;align-items:center;}
.navlinks a{
  color:rgba(255,255,255,.72);text-decoration:none;font-size:0.9rem;font-weight:700;
  position:relative;padding-bottom:4px;transition:color .15s ease;
}
.navlinks a::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--gold);
  transition:width .25s ease;
}
.navlinks a:hover{color:#fff;}
.navlinks a:hover::after,.navlinks a.active::after{width:100%;}
.navlinks a.active{color:#fff;}
.navlinks .btn{padding:9px 18px;font-size:0.85rem;}
.navtoggle{display:none;background:none;border:none;font-size:1.4rem;cursor:pointer;color:#fff;}

.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 20px;border-radius:var(--radius-btn);text-decoration:none;
  font-weight:800;font-size:0.88rem;border:0;transition:transform .15s ease, box-shadow .15s ease, filter .15s ease;
  cursor:pointer;font-family:var(--font-body);
}
.btn:hover{transform:translateY(-1.5px);filter:brightness(1.04);}
.btn:focus-visible{outline:2px solid var(--gold);outline-offset:2px;}
.btn:focus:not(:focus-visible){outline:none;}
.btn-primary{background:linear-gradient(135deg,var(--navy),var(--navy-soft));color:#fff;box-shadow:0 12px 24px rgba(18,40,76,.22);}
.btn-secondary{background:#fff;color:var(--navy);border:1px solid var(--line);box-shadow:var(--shadow-sm);}
.btn-gold{background:linear-gradient(135deg,var(--gold-light),var(--gold-deep));color:#241a08;box-shadow:0 12px 24px rgba(197,160,89,.30);}

main{max-width:1140px;margin:0 auto;padding:0 28px;}

/* PAGE HEADER (sub-pages) */
.pageHero{
  max-width:1140px;margin:0 auto;padding:64px 28px 46px;
}
.pageHero h1{font-size:2.3rem;margin-bottom:14px;}
.pageHero p{color:var(--ink-soft);max-width:60ch;font-size:1.02rem;font-weight:500;}

section{max-width:1140px;margin:0 auto;padding:56px 28px;}
section.bordered{border-top:1px solid var(--line);}
.sectionHead{display:flex;justify-content:space-between;align-items:flex-end;flex-wrap:wrap;gap:16px;margin-bottom:34px;}
.sectionHead h2{font-size:1.7rem;}
.sectionHead .sub{color:var(--ink-soft);max-width:52ch;font-weight:500;}

.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:20px;}

.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s ease, transform .6s ease;}
.reveal.in{opacity:1;transform:translateY(0);}

/* CARD (signature element) — top gradient bar, soft shadow, big radius */
.tcard{
  background:var(--card);
  border:1px solid var(--line);
  padding:24px 24px 22px;
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  position:relative;overflow:hidden;
  transition:box-shadow .2s ease, transform .2s ease;
}
.tcard:hover{box-shadow:var(--shadow-lift);}
.tcard::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--blue),var(--gold));}
.tcard .tlabel{
  font-family:var(--font-body);font-size:0.68rem;letter-spacing:0.08em;
  text-transform:uppercase;color:var(--gold-deep);font-weight:800;margin-bottom:8px;display:block;
}
.tcard h3{font-size:1.1rem;margin-bottom:8px;}
.tcard p{color:var(--ink-soft);font-size:0.93rem;font-weight:500;}
.tcard .tag{
  display:inline-block;font-family:var(--font-body);font-size:0.72rem;font-weight:800;
  background:#eef1f8;color:var(--navy);padding:5px 12px;border-radius:999px;margin:3px 6px 0 0;
  border:1px solid var(--line);
}

/* NAV TILES (home page -> other pages) */
.tileGrid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.tile{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 26px;text-decoration:none;display:flex;flex-direction:column;gap:12px;
  transition:transform .2s ease, box-shadow .2s ease;
  position:relative;overflow:hidden;box-shadow:var(--shadow-sm);
}
.tile::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--navy),var(--gold));}
.tile:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);}
.tile .tnum{font-family:var(--font-body);color:var(--gold-deep);font-size:0.76rem;font-weight:800;letter-spacing:.06em;}
.tile h3{font-size:1.3rem;color:var(--navy);}
.tile p{color:var(--ink-soft);font-size:0.93rem;flex-grow:1;font-weight:500;}
.tile .go{font-family:var(--font-body);font-size:0.83rem;color:var(--blue);font-weight:800;}
.tile:hover .go{color:var(--gold-deep);}

/* RECHERCHE */
.researchLead{
  background:linear-gradient(180deg,#eef1f8 0%,#ffffff 90px);
  border:1px solid var(--line);padding:28px;border-radius:var(--radius);
  margin-bottom:32px;position:relative;overflow:hidden;box-shadow:var(--shadow-sm);
}
.researchLead::before{content:"";position:absolute;top:0;left:0;right:0;height:5px;background:linear-gradient(90deg,var(--navy) 0%,var(--navy-soft) 55%,var(--gold) 100%);}
.researchLead h3{font-size:1.25rem;margin-bottom:10px;}
.researchLead p{color:var(--ink-soft);font-weight:500;}
.commList{list-style:none;}
.commList li{
  display:grid;grid-template-columns:120px 1fr;gap:18px;padding:15px 0;border-top:1px solid var(--line);
  align-items:baseline;
}
.commList li:last-child{border-bottom:1px solid var(--line);}
.commList .place{font-family:var(--font-body);color:var(--blue);font-size:0.82rem;font-weight:800;}
.commList .desc{color:var(--ink-soft);font-size:0.93rem;font-weight:500;}
.commList .desc strong{color:var(--ink);}

/* CV TIMELINE */
.timeline{border-left:2px solid var(--line);padding-left:28px;display:flex;flex-direction:column;gap:32px;margin-bottom:20px;}
.titem{position:relative;}
.titem::before{
  content:"";position:absolute;left:-33.5px;top:4px;width:10px;height:10px;border-radius:50%;
  background:var(--gold);border:2px solid var(--paper);box-shadow:0 0 0 2px var(--gold-light);
}
.titem .period{font-family:var(--font-body);font-size:0.78rem;color:var(--gold-deep);font-weight:800;margin-bottom:4px;}
.titem h3{font-size:1.05rem;margin-bottom:4px;}
.titem p{color:var(--ink-soft);font-size:0.93rem;font-weight:500;}

.skillRow{display:flex;flex-wrap:wrap;gap:10px;margin-top:10px;}
.skillRow span{
  font-family:var(--font-body);font-size:0.76rem;font-weight:700;background:#eef1f8;
  padding:6px 13px;border-radius:999px;color:var(--navy);border:1px solid var(--line);
}

/* CONTACT */
.contactGrid{display:grid;grid-template-columns:1fr 1fr;gap:28px;}
.contactCard{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow-sm);}
.contactCard h3{font-size:1.05rem;margin-bottom:6px;}
.contactCard a{display:block;margin-top:10px;font-family:var(--font-body);font-size:0.93rem;font-weight:700;color:var(--blue);}
.formRow{margin-bottom:16px;display:flex;flex-direction:column;gap:6px;}
.formRow label{font-family:var(--font-body);font-size:0.72rem;text-transform:uppercase;font-weight:800;letter-spacing:.05em;color:var(--ink-soft);}
.formRow input,.formRow textarea{
  border:1px solid var(--line);background:#fff;padding:12px 14px;font-family:var(--font-body);
  font-size:0.93rem;border-radius:var(--radius-btn);color:var(--ink);
}
.formRow textarea{resize:vertical;min-height:120px;}
.formRow input:focus,.formRow textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 4px rgba(37,99,235,.12);}

footer{background:linear-gradient(175deg,var(--navy) 0%,var(--navy-deep) 100%);color:#fff;padding:48px 28px 28px;margin-top:36px;}
.footInner{max-width:1140px;margin:0 auto;display:flex;justify-content:space-between;flex-wrap:wrap;gap:28px;}
.footInner h3{color:#fff;font-size:1.2rem;margin-bottom:10px;}
.footInner p{color:rgba(255,255,255,.65);max-width:40ch;font-weight:500;}
.footLinks{display:flex;flex-direction:column;gap:8px;}
.footLinks a{color:rgba(255,255,255,.78);text-decoration:none;font-size:0.93rem;font-weight:600;}
.footLinks a:hover{color:#fff;}
.footBottom{max-width:1140px;margin:28px auto 0;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);color:rgba(255,255,255,.5);font-size:0.8rem;}

/* HOME — intro block */
.introBlock{
  max-width:1140px;margin:0 auto;padding:64px 28px 46px;
  display:grid;grid-template-columns:200px 1fr;gap:38px;align-items:start;
}
.portraitWrap{position:relative;display:flex;justify-content:center;align-items:center;}
.portrait{
  width:200px;height:200px;border-radius:50%;object-fit:cover;
  box-shadow:0 0 0 4px #fff,0 0 0 7px var(--gold),var(--shadow-lift);
}
.portraitSmall{
  width:110px;height:110px;border-radius:50%;object-fit:cover;
  box-shadow:0 0 0 3px #fff,0 0 0 5px var(--gold),var(--shadow-sm);
}
.cvHeadRow{display:flex;gap:24px;align-items:center;flex-wrap:wrap;margin-bottom:6px;}
.introTitles h1{font-size:1.55rem;line-height:1.35;margin-bottom:18px;}
.introTitles .tagline{font-size:1.08rem;color:var(--ink);margin-bottom:18px;font-weight:600;}
.emailPrompt{
  display:flex;align-items:center;gap:12px;font-size:0.93rem;color:var(--ink-soft);font-weight:500;
}
.emailPrompt .badge{
  font-family:var(--font-body);font-size:0.76rem;font-weight:800;color:var(--blue);
  border:1px solid var(--line);padding:6px 13px;border-radius:999px;background:var(--card);
}

.newsList{list-style:none;display:flex;flex-direction:column;}
.newsList li{
  display:grid;grid-template-columns:100px 1fr;gap:16px;padding:13px 0;border-top:1px solid var(--line);
  align-items:baseline;font-size:0.93rem;font-weight:500;
}
.newsList li:last-child{border-bottom:1px solid var(--line);}
.newsList .date{font-family:var(--font-body);font-size:0.78rem;color:var(--gold-deep);font-weight:800;}
.newsList a{color:var(--blue);text-decoration:none;font-weight:700;}
.newsList a:hover{text-decoration:underline;}
.newsList span.plain{color:var(--ink-soft);}

.bulletList{list-style:none;display:flex;flex-direction:column;gap:11px;}
.bulletList li{position:relative;padding-left:20px;color:var(--ink-soft);font-size:0.93rem;font-weight:500;}
.bulletList li::before{content:"";position:absolute;left:0;top:7px;width:7px;height:7px;border-radius:50%;background:var(--gold);}
.bulletList a{color:var(--blue);font-weight:700;text-decoration:none;}
.bulletList a:hover{text-decoration:underline;}

@media(max-width:900px){
  .introBlock{grid-template-columns:1fr;}
  .grid3, .tileGrid{grid-template-columns:1fr;}
  .grid2, .contactGrid{grid-template-columns:1fr;}
  .navlinks{
    position:absolute;top:100%;left:0;right:0;background:var(--navy);
    flex-direction:column;padding:20px 28px;border-bottom:1px solid rgba(255,255,255,.1);display:none;gap:18px;align-items:flex-start;
  }
  .navlinks.open{display:flex;}
  .navtoggle{display:block;}
  .commList li{grid-template-columns:1fr;gap:4px;}
  .newsList li{grid-template-columns:1fr;gap:2px;}
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  .reveal{transition:none;opacity:1;transform:none;}
}