:root{
    --bg:#0b0d10;
    --bg-panel:#12151a;
    --bg-panel-2:#181c22;
    --line:#242a32;
    --line-soft:#1b1f26;
    --text:#e7e9ec;
    --text-dim:#98a1ad;
    --text-faint:#5f6773;
    --accent:#6fa8a0;
    --accent-strong:#8fc4bc;
    --accent-soft: rgba(111,168,160,0.12);
    --amber:#d9a15c;
    --amber-soft: rgba(217,161,92,0.12);
    --radius: 4px;
    --mono: 'IBM Plex Mono', ui-monospace, monospace;
    --display: 'Space Grotesk', sans-serif;
    --body: 'Inter', sans-serif;
    --maxw: 1040px;
  }

  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:var(--body);
    line-height:1.6;
    -webkit-font-smoothing:antialiased;
  }
  ::selection{ background:var(--accent-soft); color:var(--accent-strong); }

  a{ color:inherit; }
  h1,h2,h3{ font-family:var(--display); margin:0; }
  p{ margin:0; }
  ul{ margin:0; padding:0; list-style:none; }

  .wrap{ max-width:var(--maxw); margin:0 auto; padding:0 28px; }

  /* -------------------- NAV -------------------- */
  nav.topbar{
    position:fixed; top:0; left:0; right:0; z-index:100;
    background:rgba(11,13,16,0.78);
    backdrop-filter: blur(10px);
    border-bottom:1px solid var(--line-soft);
  }
  nav.topbar .wrap{
    display:flex; align-items:center; justify-content:space-between;
    height:64px;
  }
  .logo{
    font-family:var(--mono); font-size:14px; letter-spacing:0.02em;
    color:var(--text);
  }
  .logo .dim{ color:var(--text-faint); }
  .navlinks{ display:flex; align-items:center; gap:28px; }
  .navlinks a{
    font-family:var(--mono); font-size:12.5px; text-decoration:none;
    color:var(--text-dim); letter-spacing:0.03em; text-transform:uppercase;
    transition:color .15s ease;
    position:relative;
  }
  .navlinks a:hover{ color:var(--accent-strong); }
  .navlinks{ display:flex; }
  @media (max-width:760px){ .navlinks a.hide-mobile{ display:none; } }

  .langtoggle{
    display:flex; align-items:center; border:1px solid var(--line);
    border-radius:100px; overflow:hidden; font-family:var(--mono); font-size:11px;
  }
  .langtoggle button{
    background:none; border:none; color:var(--text-faint); padding:6px 12px;
    cursor:pointer; font-family:var(--mono); font-size:11px; letter-spacing:0.05em;
    transition: all .15s ease;
  }
  .langtoggle button.active{ background:var(--accent-soft); color:var(--accent-strong); }

  /* -------------------- PIPELINE SPINE -------------------- */
  .spine{
    position:fixed; left:36px; top:0; bottom:0; width:1px; z-index:5;
    display:flex; align-items:center; pointer-events:none;
  }
  @media (max-width:1100px){ .spine{ display:none; } }
  .spine-track{
    position:relative; width:1px; height:62vh; background:var(--line);
  }
  .spine-fill{
    position:absolute; top:0; left:0; width:100%; height:0%;
    background:linear-gradient(var(--accent), var(--accent));
    transition: height .25s linear;
  }
  .spine-dots{
    position:absolute; top:0; left:-5px; width:11px; height:100%;
  }
  .spine-dot{
    position:absolute; left:0; width:11px; height:11px; border-radius:50%;
    background:var(--bg); border:1px solid var(--line);
    transition: all .25s ease;
    pointer-events:auto;
  }
  .spine-dot .stage-label{
    position:absolute; left:20px; top:50%; transform:translateY(-50%);
    font-family:var(--mono); font-size:10.5px; letter-spacing:0.08em;
    color:var(--text-faint); white-space:nowrap; text-transform:uppercase;
    transition: color .25s ease;
  }
  .spine-dot.is-active{ background:var(--accent); border-color:var(--accent); box-shadow:0 0 0 3px var(--accent-soft); }
  .spine-dot.is-active .stage-label{ color:var(--accent-strong); }
  .spine-dot.is-done{ background:var(--accent); border-color:var(--accent); }

  /* -------------------- HERO -------------------- */
  header.hero{
    min-height:100vh; display:flex; align-items:center;
    padding-top:110px; padding-bottom:60px;
    position:relative;
    background:
      radial-gradient(ellipse 900px 500px at 15% 0%, rgba(111,168,160,0.07), transparent 60%),
      var(--bg);
  }
  .hero-grid{
    display:grid; grid-template-columns: 1.1fr 0.9fr; gap:56px; align-items:center; width:100%;
  }
  @media (max-width:880px){ .hero-grid{ grid-template-columns:1fr; } }

  .eyebrow{
    font-family:var(--mono); font-size:12px; letter-spacing:0.12em; text-transform:uppercase;
    color:var(--accent); display:flex; align-items:center; gap:10px; margin-bottom:18px;
  }
  .eyebrow::before{ content:''; width:16px; height:1px; background:var(--accent); }

  .hero h1{
    font-size:clamp(34px, 5vw, 54px); font-weight:600; letter-spacing:-0.02em;
    color:var(--text); line-height:1.08;
  }
  .hero h1 .accent{ color:var(--accent); }
  .hero .role{
    font-family:var(--mono); font-size:15px; color:var(--text-dim); margin-top:16px;
    letter-spacing:0.01em;
  }
  .hero .desc{ margin-top:22px; color:var(--text-dim); font-size:15.5px; max-width:46ch; }

  .hero-cta{ display:flex; gap:14px; margin-top:32px; flex-wrap:wrap; }
  .btn{
    font-family:var(--mono); font-size:12.5px; letter-spacing:0.03em; text-transform:uppercase;
    padding:12px 20px; border-radius:var(--radius); text-decoration:none;
    display:inline-flex; align-items:center; gap:8px; transition: all .15s ease;
    border:1px solid transparent;
  }
  .btn-primary{ background:var(--accent); color:#0b0d10; font-weight:600; }
  .btn-primary:hover{ background:var(--accent-strong); }
  .btn-ghost{ border-color:var(--line); color:var(--text-dim); }
  .btn-ghost:hover{ border-color:var(--accent); color:var(--accent-strong); }

  /* terminal card */
  .term{
    background:var(--bg-panel); border:1px solid var(--line); border-radius:8px;
    overflow:hidden; box-shadow:0 20px 60px -20px rgba(0,0,0,0.6);
  }
  .term-bar{
    display:flex; align-items:center; gap:7px; padding:10px 14px;
    border-bottom:1px solid var(--line); background:var(--bg-panel-2);
  }
  .term-dot{ width:10px; height:10px; border-radius:50%; background:var(--line); }
  .term-title{
    margin-left:8px; font-family:var(--mono); font-size:11.5px; color:var(--text-faint);
  }
  .term-body{
    padding:22px 20px; font-family:var(--mono); font-size:13px; color:var(--text-dim);
    min-height:230px;
  }
  .term-body .ln{ margin-bottom:9px; }
  .term-body .prompt{ color:var(--accent); }
  .term-body .val{ color:var(--text); }
  .term-body .comment{ color:var(--text-faint); }
  .cursor{
    display:inline-block; width:7px; height:14px; background:var(--accent);
    vertical-align:middle; margin-left:2px; animation: blink 1s steps(1) infinite;
  }
  @media (prefers-reduced-motion: reduce){ .cursor{ animation:none; } html{ scroll-behavior:auto; } }
  @keyframes blink{ 50%{ opacity:0; } }

  /* -------------------- SECTIONS -------------------- */
  section{ padding:120px 0; border-top:1px solid var(--line-soft); }
  .section-head{ margin-bottom:56px; max-width:640px; }
  .section-head h2{ font-size:clamp(26px,3vw,34px); font-weight:600; margin-top:14px; letter-spacing:-0.01em; }
  .section-head .sub{ color:var(--text-dim); margin-top:14px; font-size:15px; }

  .reveal{ opacity:0; transform:translateY(18px); transition: opacity .6s ease, transform .6s ease; }
  .reveal.in-view{ opacity:1; transform:translateY(0); }
  @media (prefers-reduced-motion: reduce){ .reveal{ opacity:1; transform:none; transition:none; } }

  /* -------------------- EXPERIENCE -------------------- */
  .job{
    display:grid; grid-template-columns: 200px 1fr; gap:32px;
    padding:32px 0; border-top:1px solid var(--line-soft);
  }
  .job:first-of-type{ border-top:none; }
  @media (max-width:700px){ .job{ grid-template-columns:1fr; gap:10px; } }
  .job-meta{ font-family:var(--mono); font-size:12px; color:var(--text-faint); }
  .job-meta .range{ color:var(--accent); display:block; margin-bottom:6px; }
  .job-title{ font-size:19px; font-weight:600; color:var(--text); font-family:var(--display); }
  .job-org{ color:var(--text-dim); font-size:14px; margin-top:3px; font-family:var(--mono); }
  .job-list{ margin-top:16px; }
  .job-list li{
    position:relative; padding-left:20px; margin-bottom:10px; color:var(--text-dim); font-size:14.5px;
  }
  .job-list li::before{
    content:''; position:absolute; left:0; top:9px; width:8px; height:1px; background:var(--accent);
  }

  /* -------------------- PROJECTS -------------------- */
  .proj-grid{ display:grid; grid-template-columns:repeat(2,1fr); gap:22px; }
  @media (max-width:760px){ .proj-grid{ grid-template-columns:1fr; } }
  .card{
    background:var(--bg-panel); border:1px solid var(--line); border-radius:8px;
    padding:26px; display:flex; flex-direction:column; height:100%;
    transition: border-color .2s ease, transform .2s ease;
  }
  .card:hover{ border-color:var(--accent); transform:translateY(-3px); }
  .card-tag{
    font-family:var(--mono); font-size:11px; letter-spacing:0.06em; text-transform:uppercase;
    color:var(--amber); margin-bottom:12px;
  }
  .card h3{ font-size:18px; font-weight:600; color:var(--text); }
  .card p{ color:var(--text-dim); font-size:14px; margin-top:10px; flex-grow:1; }
  .card-stack{ display:flex; flex-wrap:wrap; gap:8px; margin-top:16px; }
  .pill{
    font-family:var(--mono); font-size:11px; padding:4px 9px; border:1px solid var(--line);
    border-radius:100px; color:var(--text-dim);
  }
  .card-link{
    margin-top:18px; font-family:var(--mono); font-size:12px; color:var(--accent);
    text-decoration:none; display:inline-flex; align-items:center; gap:6px;
  }
  .card-link:hover{ color:var(--accent-strong); }
  .card-link::after{ content:'→'; transition:transform .15s ease; }
  .card-link:hover::after{ transform:translateX(3px); }

  /* -------------------- SKILLS -------------------- */
  .skills-grid{ display:grid; grid-template-columns:repeat(2,1fr); gap:32px 48px; }
  @media (max-width:700px){ .skills-grid{ grid-template-columns:1fr; } }
  .skill-group h3{
    font-family:var(--mono); font-size:12.5px; letter-spacing:0.06em; text-transform:uppercase;
    color:var(--text-faint); margin-bottom:16px; padding-bottom:10px; border-bottom:1px solid var(--line-soft);
  }
  .skill-row{
    display:flex; align-items:center; justify-content:space-between;
    padding:10px 0; border-bottom:1px solid var(--line-soft); font-size:14.5px;
  }
  .skill-row:last-child{ border-bottom:none; }
  .skill-row .name{ color:var(--text); }
  .skill-status{
    font-family:var(--mono); font-size:10.5px; letter-spacing:0.05em; text-transform:uppercase;
    padding:3px 8px; border-radius:100px;
  }
  .skill-status.ok{ color:var(--accent); background:var(--accent-soft); }
  .skill-status.pending{ color:var(--amber); background:var(--amber-soft); }

  /* -------------------- CERTS -------------------- */
  .cert-list{ display:flex; flex-direction:column; }
  .cert{
    display:grid; grid-template-columns: 110px 1fr auto; gap:24px; align-items:center;
    padding:20px 0; border-top:1px solid var(--line-soft);
  }
  .cert:first-child{ border-top:none; }
  @media (max-width:700px){ .cert{ grid-template-columns:1fr; gap:6px; } }
  .cert-date{ font-family:var(--mono); font-size:12px; color:var(--text-faint); }
  .cert-name{ font-weight:600; color:var(--text); font-size:15px; }
  .cert-issuer{ font-family:var(--mono); font-size:12.5px; color:var(--text-dim); margin-top:3px; }
  .cert-badge{
    font-family:var(--mono); font-size:10.5px; letter-spacing:0.05em; text-transform:uppercase;
    color:var(--accent); border:1px solid var(--line); padding:5px 10px; border-radius:100px;
    white-space:nowrap; justify-self:end;
    text-decoration: none;
  }

  .edu-box{
    margin-top:44px; padding-top:32px; border-top:1px solid var(--line-soft);
    display:grid; grid-template-columns:110px 1fr; gap:24px;
  }
  @media (max-width:700px){ .edu-box{ grid-template-columns:1fr; gap:8px; } }

  /* -------------------- CONTACT -------------------- */
  .contact-panel{
    background:var(--bg-panel); border:1px solid var(--line); border-radius:10px;
    padding:56px; text-align:center;
  }
  @media (max-width:600px){ .contact-panel{ padding:36px 22px; } }
  .contact-panel h2{ font-size:clamp(26px,3.4vw,36px); }
  .contact-panel .sub{ color:var(--text-dim); margin-top:16px; max-width:50ch; margin-left:auto; margin-right:auto; }
  .contact-links{ display:flex; gap:16px; justify-content:center; margin-top:32px; flex-wrap:wrap; }

  footer{ padding:32px 0 48px; }
  footer .wrap{
    display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:12px;
    font-family:var(--mono); font-size:11.5px; color:var(--text-faint);
  }

  .skill-icon {
    width: 33px;
    height: auto;
    border-radius: 10px;
    padding: 3px;
  }

  /* lang visibility */
  [data-i18n]{ }
  html[data-lang="fr"] .lang-en{ display:none !important; }
  html[data-lang="en"] .lang-fr{ display:none !important; }

  i {
    font-size: 24px;
  }