:root{
  --paper:#ffffff;
  --sheet:#f4f6f8;
  --ink:#15212c;
  --muted:#566472;
  --line:#dce2e8;
  --line-strong:#b9c3cd;
  --blue:#1d4f91;
  --blue-dark:#143a6d;
  --blue-soft:#e9f0f9;
  --n-souff:#96b4f0;
  --n-rep:#8cd2b4;
  --n-ext:#c8afe5;
  --n-ch-aller:#c81e27;
  --n-ch-retour:#005fbf;
  --n-ecs:#c81e27;
  --n-efs:#008cc8;
  --n-evac:#825427;
  --wrap:1160px;
  --r:6px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue)}
a:hover{color:var(--blue-dark)}
:focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:2px}
h1,h2,h3{line-height:1.15;margin:0;font-weight:600;letter-spacing:-0.01em}
h2{font-size:clamp(1.6rem,2.6vw,2.1rem)}
h3{font-size:1.15rem}
p{margin:0 0 1rem}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-999px}
.skip:focus{left:16px;top:16px;background:var(--paper);padding:8px 12px;z-index:50}

/* header */
.top{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);backdrop-filter:saturate(1.4) blur(6px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;height:60px}
.brand{font-weight:600;color:var(--ink);text-decoration:none;font-size:1rem}
.brand span{color:var(--muted);font-weight:400;margin-left:8px}
.nav{display:flex;gap:22px}
.nav a{color:var(--muted);text-decoration:none;font-size:.95rem}
.nav a:hover{color:var(--ink)}
@media (max-width:720px){.top .wrap{height:auto;flex-direction:column;align-items:flex-start;padding-top:10px;padding-bottom:0}.brand span{display:none}.nav{width:100%;gap:18px;overflow-x:auto;white-space:nowrap;padding:8px 0 10px;scrollbar-width:none}.nav::-webkit-scrollbar{display:none}.nav a{font-size:.9rem}}

/* buttons */
.btns{display:flex;flex-wrap:wrap;gap:10px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 18px;border-radius:var(--r);border:1px solid var(--line-strong);color:var(--ink);text-decoration:none;font-weight:500;font-size:.95rem;background:var(--paper)}
.btn:hover{border-color:var(--ink);color:var(--ink)}
.btn.primary{background:var(--blue);border-color:var(--blue);color:#fff}
.btn.primary:hover{background:var(--blue-dark);border-color:var(--blue-dark);color:#fff}

/* hero with drawing grid */
.hero{position:relative;padding:56px 0 64px;border-bottom:1px solid var(--line);overflow:hidden}
.hero .wrap{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:48px;align-items:center}
.hero h1{font-size:clamp(2.3rem,4.6vw,3.6rem);line-height:1.04}
.hero h1 .nw{white-space:nowrap}
.hero .btn{padding:11px 16px}
.hero h1 small{display:block;font-size:.5em;font-weight:500;color:var(--blue);margin-top:10px;letter-spacing:0}
.hero .who{font-size:1.05rem;color:var(--muted);margin-bottom:18px}
.hero .lead{font-size:1.2rem;margin:22px 0 22px;max-width:30ch}
.soft{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 26px;padding:0;list-style:none}
.soft li{background:var(--blue-soft);color:var(--blue-dark);border-radius:4px;padding:5px 11px;font-size:.9rem;font-weight:500}
.info{font-size:.9rem;color:var(--muted);margin-top:18px}
.drawing{position:relative;padding:34px 0 0 34px}
.drawing::before{content:"";position:absolute;inset:0 0 -30px 0;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:56px 56px;opacity:.55;z-index:0}
.drawing figure{position:relative;z-index:1;margin:0;background:var(--paper);border:1px solid var(--line);border-radius:4px;padding:10px}
.axis{position:absolute;z-index:1;display:flex;font-size:.75rem;font-weight:500;color:var(--muted)}
.axis span{width:24px;height:24px;border:1px solid var(--line-strong);border-radius:50%;display:grid;place-items:center;background:var(--paper)}
.axis.x{top:0;left:34px;right:0;justify-content:space-around}
.axis.y{left:0;top:34px;bottom:0;flex-direction:column;justify-content:space-around}
.legend{display:flex;flex-wrap:wrap;gap:14px;margin-top:14px;font-size:.82rem;color:var(--muted);position:relative;z-index:1}
.legend{gap:8px 18px}
.legend i{display:inline-block;width:18px;height:10px;border:1px solid rgba(0,0,0,.45);margin-right:6px;vertical-align:-1px}
@media (max-width:900px){.hero .wrap{grid-template-columns:1fr;gap:36px}.hero .lead{max-width:none}}

/* sections */
section{padding:84px 0;border-bottom:1px solid var(--line)}
section.alt{background:var(--sheet)}
.head{max-width:62ch;margin-bottom:36px}
.head p{color:var(--muted);margin-top:10px}

/* project card */
.pcard{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:40px;align-items:center;background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:24px}
.pcard .tag{font-size:.88rem;color:var(--muted);margin:0 0 8px}
.pcard h3{font-size:1.6rem;margin-bottom:10px}
.pcard .lots{color:var(--muted);margin-bottom:20px}
.figs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:6px;overflow:hidden;margin-bottom:24px}
.figs div{background:var(--paper);padding:12px 14px}
.figs b{display:block;font-size:1.55rem;font-weight:600;font-variant-numeric:tabular-nums;color:var(--blue)}
.figs span{font-size:.82rem;color:var(--muted);line-height:1.3;display:block}
@media (max-width:900px){.pcard{grid-template-columns:1fr}}
@media (max-width:480px){.figs{grid-template-columns:repeat(2,minmax(0,1fr))}}

/* profile */
.profile{display:grid;grid-template-columns:220px minmax(0,1fr);gap:48px;align-items:start}
.profile img{width:220px;height:220px;border-radius:50%;object-fit:cover;border:1px solid var(--line)}
.profile .txt{max-width:64ch}
.keys{display:flex;flex-wrap:wrap;gap:28px;margin-top:22px;padding-top:22px;border-top:1px solid var(--line)}
.keys b{display:block;font-size:1.4rem;font-weight:600;color:var(--blue)}
.keys span{font-size:.88rem;color:var(--muted)}
@media (max-width:720px){.profile{grid-template-columns:1fr;gap:24px}.profile img{width:160px;height:160px}}

/* software */
.sw{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.sw article{border-top:3px solid var(--blue);padding-top:18px}
.sw ul{margin:12px 0 14px;padding-left:18px}
.sw li{margin-bottom:4px}
.sw .src{font-size:.88rem;color:var(--muted);margin:0}
.extra{margin-top:36px;display:flex;flex-wrap:wrap;gap:32px;font-size:.95rem;color:var(--muted)}
.extra b{color:var(--ink);font-weight:500}
@media (max-width:900px){.sw{grid-template-columns:1fr}}

/* timeline */
.tl{list-style:none;margin:0;padding:0;border-left:2px solid var(--line-strong);max-width:760px}
.tl li{position:relative;padding:0 0 30px 26px}
.tl li::before{content:"";position:absolute;left:-7px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--paper);border:2px solid var(--blue)}
.tl li.next::before{border-style:dashed;border-color:var(--muted)}
.tl .when{font-size:.88rem;color:var(--muted);font-variant-numeric:tabular-nums}
.tl h3{margin:2px 0 6px}
.tl p{margin:0;color:var(--muted)}

/* contact as title block */
.cartouche{border:2px solid var(--ink);display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);background:var(--paper)}
.cartouche > div{padding:28px}
.cartouche .left{border-right:2px solid var(--ink)}
.cartouche h2{margin-bottom:12px}
.cartouche .left p{color:var(--muted)}
.cells{display:grid;grid-template-columns:1fr;}
.cells div{border-bottom:1px solid var(--ink);padding:12px 0}
.cells div:last-child{border-bottom:0}
.cells small{display:block;font-size:.78rem;color:var(--muted)}
.cells a,.cells span{font-weight:500;color:var(--ink);text-decoration:none;font-size:1.05rem;word-break:break-word}
.cells a:hover{color:var(--blue)}
@media (max-width:780px){.cartouche{grid-template-columns:1fr}.cartouche .left{border-right:0;border-bottom:2px solid var(--ink)}}

footer{padding:28px 0;font-size:.88rem;color:var(--muted)}
footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* project page */
.phero{padding:48px 0 0}
.crumb{font-size:.9rem;margin-bottom:22px}
.crumb a{text-decoration:none}
.phero h1{font-size:clamp(2rem,4vw,3rem);max-width:22ch}
.phero .tag{color:var(--muted);margin:12px 0 28px}
.phero .figs{grid-template-columns:repeat(6,minmax(0,1fr));margin:0 0 32px}
@media (max-width:900px){.phero .figs{grid-template-columns:repeat(3,minmax(0,1fr))}}
.bigimg{margin:0;border:1px solid var(--line);border-radius:6px;padding:10px;background:var(--paper)}
.ctx{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,4fr);gap:48px;align-items:start}
.ctx ul,.ctx ol{padding-left:20px;margin:0 0 1rem}
.ctx li{margin-bottom:6px}
.sheetbox{border:1px solid var(--ink);background:var(--paper)}
.sheetbox h3{font-size:.95rem;padding:10px 14px;border-bottom:1px solid var(--ink);background:var(--sheet)}
.sheetbox dl{margin:0}
.sheetbox dl div{display:grid;grid-template-columns:110px 1fr;border-bottom:1px solid var(--line);font-size:.92rem}
.sheetbox dl div:last-child{border-bottom:0}
.sheetbox dt{padding:9px 14px;color:var(--muted)}
.sheetbox dd{margin:0;padding:9px 14px}
@media (max-width:900px){.ctx{grid-template-columns:1fr}}
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 40px;counter-reset:s}
.steps > li{counter-increment:s;padding-left:52px;position:relative}
.steps > li::before{content:counter(s);position:absolute;left:0;top:0;width:34px;height:34px;border:1.5px solid var(--blue);border-radius:50%;display:grid;place-items:center;font-weight:600;color:var(--blue)}
.steps h3{margin:4px 0 8px}
.steps ul{margin:0;padding-left:18px;color:var(--muted)}
.steps ul li{margin-bottom:4px}
@media (max-width:800px){.steps{grid-template-columns:1fr}}

.lot{margin-top:56px}
.lot:first-of-type{margin-top:0}
.lot > h3{display:flex;align-items:center;gap:10px;font-size:1.3rem;margin-bottom:20px}
.lot > h3 i{width:22px;height:6px;border-radius:3px;display:inline-block}
.gal{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
.gal.three{grid-template-columns:repeat(3,minmax(0,1fr))}
.gal figure{margin:0}
.gal button{display:block;width:100%;padding:8px;border:1px solid var(--line);border-radius:6px;background:var(--paper);cursor:zoom-in}
.gal button:hover{border-color:var(--line-strong)}
.gal img{width:100%;aspect-ratio:16/10;object-fit:contain;background:var(--paper)}
.gal figcaption{margin-top:10px;font-size:.93rem;line-height:1.5}
.gal figcaption b{display:block;font-weight:600;margin-bottom:2px}
.gal figcaption span{color:var(--muted)}
@media (max-width:900px){.gal.three{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:600px){.gal,.gal.three{grid-template-columns:1fr}}

.pbs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.pb{background:var(--paper);border:1px solid var(--line);border-radius:6px;padding:20px 22px}
.pb h3{margin-bottom:12px}
.pb p{margin:0 0 8px;font-size:.95rem}
.pb p:last-child{margin:0}
.pb em{font-style:normal;font-weight:500;color:var(--blue-dark)}
@media (max-width:800px){.pbs{grid-template-columns:1fr}}

.skills{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px}
.skills ul{padding-left:18px;margin:10px 0 0;color:var(--muted);font-size:.95rem}
.skills li{margin-bottom:5px}
@media (max-width:900px){.skills{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:520px){.skills{grid-template-columns:1fr}}
.note{font-size:.9rem;color:var(--muted);margin-top:28px}
.endcta{display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between}

/* lightbox */
.lb{position:fixed;inset:0;z-index:100;background:rgba(15,22,30,.92);display:none;align-items:center;justify-content:center;padding:56px 20px 20px;flex-direction:column}
.lb.open{display:flex}
.lb img{max-height:82vh;max-width:96vw;width:auto;background:#fff;border-radius:4px}
.lb p{color:#e6ebf0;margin:14px 0 0;max-width:80ch;text-align:center;font-size:.95rem}
.lb .x,.lb .nv{position:absolute;background:transparent;border:1px solid rgba(255,255,255,.4);color:#fff;border-radius:50%;width:44px;height:44px;font-size:1.3rem;cursor:pointer;display:grid;place-items:center}
.lb .x{top:14px;right:16px}
.lb .prev{left:14px;top:50%}
.lb .next{right:14px;top:50%}
@media (max-width:600px){.lb .nv{top:auto;bottom:14px}}