:root{
  --navy:#0a192f;--light-navy:#112240;--lightest-navy:#233554;--slate:#8892b0;--light-slate:#a8b2d1;--lightest-slate:#ccd6f6;--white:#e6f1ff;--green:#64ffda;
  --shadow:0 10px 30px -10px rgba(2,12,27,.7);--sans:Inter,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial;--mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;--radius:6px;--container:1000px
}
*{box-sizing:border-box}html,body{height:100%}html{scroll-behavior:smooth}
body{margin:0;font-family:var(--sans);color:var(--slate);background:var(--navy);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.skip{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}.skip:focus{left:12px;top:12px;padding:10px;background:#fff;color:#000;border-radius:8px}
.left-rail{position:fixed;inset:0 auto 0 0;width:260px;padding:40px 28px;display:flex;flex-direction:column;justify-content:space-between;background:transparent;border-right:1px solid rgba(100,255,218,.12);z-index:30;transition:transform .25s ease}
.right-rail{position:fixed;inset:auto 0 0 auto;right:0;width:60px;display:flex;align-items:center;justify-content:center}
.right-rail .email{writing-mode:vertical-rl;transform:rotate(180deg);color:var(--slate);letter-spacing:.12em;font-family:var(--mono);border:1px solid rgba(100,255,218,.12);border-radius:999px;padding:60px 10px;transition:opacity .2s ease}
.right-rail .email:hover{opacity:.8}
main{margin-left:260px;padding:0 28px}.section{max-width:var(--container);margin-inline:auto;padding:120px 0;border-bottom:1px solid rgba(100,255,218,.08)}
.section-title{color:var(--lightest-slate);font-weight:800;font-size:clamp(22px,3.4vw,28px);display:flex;align-items:center;gap:12px}
.section-title .num{font-family:var(--mono);color:var(--green);font-weight:600}

/* Brand grid: default (desktop) stacks name -> role -> lang */
.brand{display:grid;grid-template-areas:
  "name"
  "role"
  "lang";gap:8px}
.brand .name{grid-area:name;color:var(--lightest-slate);font-size:26px;font-weight:800}
.brand .name span{color:var(--green)}
.brand .role{grid-area:role;color:var(--slate)}
.lang-wrap{grid-area:lang}
.icon, .cv, .lang-btn{
  display:inline-flex;background-color: inherit;align-items:center;justify-content:center;
  width:36px;height:36px;border:1px solid rgba(100,255,218,.25);border-radius:6px;color:var(--lightest-slate);font-family:var(--mono)
}
.lang-btn{width:auto;padding:0 10px;text-transform:uppercase;letter-spacing:.04em}

/* Hamburger */
.hamburger{display:none;position:absolute;top:16px;right:16px;width:44px;height:44px;border:1px solid rgba(100,255,218,.25);border-radius:8px;background:transparent}
.hamburger .bar{width:22px;height:2px;background:var(--lightest-slate);border-radius:2px}

/* Nav + socials */
.nav ol{list-style:none;padding:0;margin:28px 0 0;display:grid;gap:10px}
.nav a{display:flex;gap:10px;align-items:center;color:var(--slate);padding:8px 10px;border-radius:6px;font-weight:600}
.nav a .num{font-family:var(--mono);color:var(--green)}
.nav a:hover{background:rgba(100,255,218,.08);color:var(--lightest-slate)}
.social{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.cv{width:auto;padding:0 10px}

/* Desktop (>=1024px): social column */
@media (min-width:1024px){
  .social{flex-direction:column;align-items:flex-start}
}

/* Hero */
.hero{min-height:78vh;display:flex;flex-direction:column;justify-content:center}
.kicker{font-family:var(--mono);color:var(--green);letter-spacing:.12em}
.display{font-size:clamp(40px,7vw,80px);color:var(--lightest-slate);line-height:1.05;margin:10px 0}
.lead{font-size:clamp(18px,2.6vw,22px);color:var(--light-slate);max-width:65ch}
.muted{color:var(--slate)}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}
.btn{display:inline-flex;align-items:center;gap:10px;padding:12px 16px;border-radius:var(--radius);border:1px solid rgba(100,255,218,.3);font-weight:700}
.btn.solid{background:rgba(100,255,218,.12);color:var(--green)}
.btn.ghost{background:transparent;color:var(--lightest-slate)}

/* About */
.about-grid{display:grid;grid-template-columns: 1.2fr .8fr;gap:24px;align-items:start}
.about-grid .text p{margin:0 0 12px}
.skills{list-style:none;padding:0;margin:12px 0 0;display:grid;grid-template-columns: repeat(2, minmax(180px, 1fr));gap:8px}
.skills li{position:relative;padding-left:20px;color:var(--light-slate);font-family:var(--mono);font-size:14px}
.skills li::before{content:"▹";position:absolute;left:0;color:var(--green)}
.portrait{border-radius:8px;overflow:hidden;border:1px solid rgba(100,255,218,.2);box-shadow:var(--shadow)}
.portrait img{aspect-ratio: 4/5; object-fit: cover; background:linear-gradient(135deg, rgba(100,255,218,.12), rgba(35,53,84,.6))}

/* Experience */
.timeline{list-style:none;padding:0;margin:0;display:grid;gap:16px}
.timeline li{background:var(--light-navy);border:1px solid rgba(100,255,218,.12);border-radius:8px;padding:16px 18px;box-shadow:var(--shadow)}
.timeline .when{font-family:var(--mono);color:var(--green);margin-bottom:6px}
.timeline .what{color:var(--lightest-slate);margin-bottom:6px;font-weight:700}

/* Projects */
.project{display:grid;grid-template-columns: 1fr 1fr; gap:24px; align-items:center; margin-bottom:36px}
.project.right .media{order:2}
.media{border-radius:8px;overflow:hidden;border:1px solid rgba(100,255,218,.12);box-shadow:var(--shadow)}
.content .overline{font-family:var(--mono);color:var(--green);margin:0 0 6px}
.content h3{margin:0 0 8px;color:var(--lightest-slate);font-size: clamp(20px, 3vw, 26px)}
.desc{background:var(--light-navy);border:1px solid rgba(100,255,218,.12);border-radius:8px;padding:12px;color:var(--light-slate)}
.tags{list-style:none;padding:0;margin:12px 0;display:flex;gap:10px;flex-wrap:wrap}
.tags li{font-family:var(--mono);font-size:14px;color:var(--light-slate)}
.pill{padding:6px 10px;border-radius:999px;background:rgba(100,255,218,.1);color:var(--green)}
.actions .btn{margin-right:8px}

/* Reveal animation */
[data-observe]{opacity:0; transform: translateY(8px); transition: opacity .5s ease, transform .5s ease}
[data-observe].show{opacity:1; transform:none}

/* Mobile header + slide-in menu */
@media (max-width:1100px){
  .left-rail{position:sticky;top:0;width:auto;inset:auto;flex-direction:row;align-items:center;gap:20px;padding:12px 16px;background:rgba(10,25,47,.7);backdrop-filter: blur(6px);border-right:0;border-bottom:1px solid rgba(100,255,218,.12)}
  main{margin-left:0}
  .right-rail{display:none}
  .nav{display:none}
  .hamburger{display:flex;flex-direction:column;gap:6px;align-items:center;justify-content:center}
  .social{display:none}
  /* Mobile brand grid: name left, lang right, role below */
  .brand{grid-template-columns: 1fr auto; grid-template-areas: "name lang" "role role"; align-items:center}
  .brand .role{margin-top:0}
}

/* Hide portrait & stack projects <768px (image below text) */
@media (max-width:768px){
  .portrait{display:none}
  .about-grid{grid-template-columns: 1fr}
  .project{grid-template-columns: 1fr}
  .project .content{order:1}
  .project .media{order:2;margin-top:12px}
}

/* Mobile menu (Brittany-style) */
.menu-backdrop{position:fixed;inset:0;background:rgba(2,12,27,.6);opacity:0;pointer-events:none;transition:opacity .25s ease;z-index:40}
.mobile-menu{position:fixed;inset:0 0 0 auto;width:min(75vw,380px);background:var(--light-navy);border-left:1px solid rgba(100,255,218,.12);box-shadow:var(--shadow);transform:translateX(100%);transition:transform .28s ease;z-index:50;padding:24px;display:flex;flex-direction:column;gap:24px}
.mobile-menu .close{align-self:flex-end;background:transparent;border:1px solid rgba(100,255,218,.25);border-radius:8px;width:36px;height:36px;color:var(--lightest-slate);font-size:20px;line-height:1}
.mobile-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:16px}
.mobile-links a{display:flex;gap:12px;align-items:center;color:var(--lightest-slate);font-weight:600}
.mobile-links .num{font-family:var(--mono);color:var(--green)}
.mobile-cta{display:flex;gap:10px}
.mobile-social{display:flex;gap:10px}
body.menu-open{overflow:hidden}
body.menu-open .menu-backdrop{opacity:1;pointer-events:auto}
body.menu-open .mobile-menu{transform:none}

/* Hide header on scroll down (mobile) */
@media (max-width:1100px){
  body.header-hidden .left-rail{transform:translateY(-110%)}
}