:root{
    --ink:#10151C;
    --ink-soft:#3B4650;
    --paper:#F1F3F1;
    --panel:#FFFFFF;
    --signal:#2F8F7A;
    --signal-dark:#1F6B5A;
    --alert:#FF5A36;
    --line:#D9DEDA;
    --line-strong:#B9C2BC;
    --mono: 'IBM Plex Mono', monospace;
    --display: 'Space Grotesk', sans-serif;
    --body: 'Inter', sans-serif;
    --radius: 14px;
    --max: 1180px;
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:var(--body);
    color:var(--ink);
    background:var(--paper);
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;}
  h1,h2,h3{font-family:var(--display);margin:0;letter-spacing:-0.01em;}
  p{margin:0;}
  .wrap{max-width:var(--max);margin:0 auto;padding:0 28px;}
  .eyebrow{
    font-family:var(--mono);
    font-size:12.5px;
    letter-spacing:0.12em;
    text-transform:uppercase;
    color:var(--signal-dark);
    display:flex;
    align-items:center;
    gap:10px;
  }
  .eyebrow::before{
    content:"";
    width:7px;height:7px;border-radius:50%;
    background:var(--signal);
    box-shadow:0 0 0 4px rgba(47,143,122,0.18);
  }
  .btn{
    font-family:var(--body);
    font-weight:600;
    font-size:15px;
    padding:14px 24px;
    border-radius:999px;
    border:1.5px solid transparent;
    cursor:pointer;
    display:inline-flex;
    align-items:center;
    gap:10px;
    text-decoration:none;
    transition:transform .15s ease, box-shadow .15s ease, background .15s ease;
  }
  .btn:active{transform:translateY(1px);}
  .btn-primary{
    background:var(--ink);
    color:var(--paper);
  }
  .btn-primary:hover{background:var(--signal-dark); box-shadow:0 8px 22px -8px rgba(31,107,90,0.55);}
  .btn-alert{
    background:var(--alert);
    color:#fff;
  }
  .btn-alert:hover{box-shadow:0 8px 22px -8px rgba(255,90,54,0.6); transform:translateY(-1px);}
  .btn-ghost{
    background:transparent;
    border-color:var(--line-strong);
    color:var(--ink);
  }
  .btn-ghost:hover{border-color:var(--ink);}

  /* ---------- HEADER ---------- */
  header{
    position:sticky; top:0; z-index:50;
    background:rgba(241,243,241,0.86);
    backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line);
  }
  .nav{
    display:flex; align-items:center; justify-content:space-between;
    padding:16px 28px;
    max-width:var(--max); margin:0 auto;
  }
  .logo{
    display:flex; align-items:center; gap:10px;
    font-family:var(--display); font-weight:700; font-size:18px;
    text-decoration:none;
  }
  .logo .pulse-mark{width:26px;height:18px;flex:none;}
  .logo small{
    display:block; font-family:var(--mono); font-weight:400; font-size:10px;
    letter-spacing:0.1em; color:var(--ink-soft); text-transform:uppercase; margin-top:2px;
  }
  .nav-links{
    display:flex; gap:34px; list-style:none; padding:0; margin:0;
    font-size:14.5px; font-weight:500;
  }
  .nav-links a{text-decoration:none; color:var(--ink-soft); position:relative; padding:4px 0;}
  .nav-links a:hover{color:var(--ink);}
  .nav-right{display:flex; align-items:center; gap:16px;}
  .nav-phone{
    font-family:var(--mono); font-weight:500; font-size:14px;
    display:flex; align-items:center; gap:8px; text-decoration:none;
  }
  .nav-phone svg{flex:none;}
  .burger{display:none; background:none; border:none; cursor:pointer; padding:6px;}
  .burger span{display:block; width:22px; height:2px; background:var(--ink); margin:5px 0; transition:.2s;}

  @media (max-width:880px){
    .nav-links{
      position:fixed; top:66px; left:0; right:0; bottom:0;
      background:var(--paper); flex-direction:column; gap:0;
      padding:10px 28px 28px;
      transform:translateY(-8px); opacity:0; pointer-events:none;
      transition:transform .2s ease, opacity .2s ease;
    }
    .nav-links.open{transform:translateY(0); opacity:1; pointer-events:auto;}
    .nav-links li{border-bottom:1px solid var(--line);}
    .nav-links a{display:block; padding:16px 0; font-size:16px;}
    .burger{display:block;}
    .nav-phone span{display:none;}
  }

  /* ---------- HERO ---------- */
  .hero{
    padding:76px 0 40px;
    position:relative;
    overflow:hidden;
  }
  .hero-grid{
    display:grid; grid-template-columns:1.05fr 0.95fr; gap:56px; align-items:center;
  }
  .hero h1{
    font-size:clamp(32px, 4.6vw, 52px);
    line-height:1.08;
    margin:18px 0 20px;
  }
  .hero h1 em{
    font-style:normal; color:var(--signal-dark);
    text-decoration:underline;
    text-decoration-color:rgba(47,143,122,0.4);
    text-decoration-thickness:3px;
    text-underline-offset:6px;
  }
  .hero p.lead{
    font-size:17.5px; line-height:1.6; color:var(--ink-soft); max-width:520px;
  }
  .hero-ctas{display:flex; flex-wrap:wrap; gap:14px; margin-top:30px;}
  .hero-trust{
    display:flex; flex-wrap:wrap; gap:22px; margin-top:34px;
    font-family:var(--mono); font-size:12.5px; color:var(--ink-soft);
  }
  .hero-trust span{display:flex; align-items:center; gap:8px;}
  .hero-trust svg{flex:none; color:var(--signal-dark);}

  .monitor{
    background:var(--ink);
    border-radius:20px;
    padding:26px 22px 18px;
    color:var(--paper);
    position:relative;
    box-shadow:0 30px 60px -30px rgba(16,21,28,0.55);
  }
  .monitor-head{
    display:flex; justify-content:space-between; align-items:center;
    font-family:var(--mono); font-size:11.5px; letter-spacing:0.08em;
    text-transform:uppercase; color:#8FA39B; margin-bottom:14px;
  }
  .monitor-head .rec{display:flex; align-items:center; gap:7px; color:var(--alert);}
  .monitor-head .rec::before{
    content:""; width:7px; height:7px; border-radius:50%; background:var(--alert);
    animation:blink 1.4s infinite ease-in-out;
  }
  @keyframes blink{0%,100%{opacity:1;}50%{opacity:.25;}}
  .monitor-wave{width:100%; height:150px; display:block; overflow:visible;}
  .monitor-foot{
    display:flex; justify-content:space-between; margin-top:14px;
    padding-top:14px; border-top:1px solid rgba(255,255,255,0.12);
    font-family:var(--mono); font-size:12px;
  }
  .monitor-foot .label{color:#8FA39B; font-size:10.5px; letter-spacing:.08em; text-transform:uppercase; margin-bottom:4px;}
  .monitor-foot .val-bad{color:var(--alert);}
  .monitor-foot .val-good{color:var(--signal);}

  /* ---------- SECTION shell ---------- */
  section{padding:86px 0;}
  .section-head{max-width:640px; margin-bottom:50px;}
  .section-head h2{font-size:clamp(26px,3.4vw,36px); margin-top:14px; line-height:1.15;}
  .section-head p{margin-top:14px; color:var(--ink-soft); font-size:16px; line-height:1.6;}

  /* ---------- STEPS ---------- */
  .steps{
    display:grid; grid-template-columns:repeat(3,1fr); gap:0;
    border-top:1px solid var(--line); border-bottom:1px solid var(--line);
  }
  .step{
    padding:34px 30px; position:relative;
    border-right:1px solid var(--line);
  }
  .step:last-child{border-right:none;}
  .step .num{
    font-family:var(--mono); font-size:13px; color:var(--signal-dark);
  }
  .step h3{font-size:19px; margin:14px 0 10px;}
  .step p{color:var(--ink-soft); font-size:14.5px; line-height:1.55;}
  @media (max-width:800px){
    .steps{grid-template-columns:1fr;}
    .step{border-right:none; border-bottom:1px solid var(--line);}
  }

  /* ---------- SERVICES ---------- */
  .services-grid{
    display:grid; grid-template-columns:repeat(3,1fr); gap:20px;
  }
  .service-card{
    background:var(--panel); border:1px solid var(--line);
    border-radius:var(--radius); padding:28px 26px;
    transition:border-color .15s ease, transform .15s ease;
  }
  .service-card:hover{border-color:var(--signal); transform:translateY(-3px);}
  .service-card .ic{
    width:42px; height:42px; border-radius:10px;
    background:rgba(47,143,122,0.1); color:var(--signal-dark);
    display:flex; align-items:center; justify-content:center; margin-bottom:18px;
  }
  .service-card h3{font-size:17.5px; margin-bottom:9px;}
  .service-card p{font-size:14.5px; color:var(--ink-soft); line-height:1.55;}
  @media (max-width:900px){.services-grid{grid-template-columns:1fr 1fr;}}
  @media (max-width:600px){.services-grid{grid-template-columns:1fr;}}

  /* ---------- PRICING (ordonnance) ---------- */
  .rx{
    background:var(--panel); border:1px solid var(--line); border-radius:20px;
    overflow:hidden;
    box-shadow:0 30px 60px -40px rgba(16,21,28,0.25);
  }
  .rx-top{
    display:flex; justify-content:space-between; align-items:flex-start; gap:20px;
    padding:30px 34px; border-bottom:1.5px dashed var(--line-strong);
  }
  .rx-top h3{font-family:var(--mono); font-size:14px; letter-spacing:.06em; text-transform:uppercase; color:var(--ink-soft); font-weight:500;}
  .rx-top .rx-brand{font-family:var(--display); font-weight:700; font-size:20px; margin-top:6px;}
  .rx-top .rx-note{font-family:var(--mono); font-size:12px; color:var(--ink-soft); text-align:right; line-height:1.6;}
  table.rx-table{width:100%; border-collapse:collapse;}
  .rx-table td{
    padding:20px 34px; border-bottom:1px solid var(--line); vertical-align:top; font-size:15px;
  }
  .rx-table tr:last-child td{border-bottom:none;}
  .rx-table .svc{font-weight:600;}
  .rx-table .kind{
    font-family:var(--mono); font-size:11.5px; color:var(--ink-soft);
    text-transform:uppercase; letter-spacing:.05em; white-space:nowrap;
  }
  .rx-table .price{
    font-family:var(--mono); font-weight:600; font-size:16px; color:var(--signal-dark);
    text-align:right; white-space:nowrap;
  }
  .rx-table .price small{display:block; font-weight:400; font-size:11px; color:var(--ink-soft); font-family:var(--body);}
  .rx-bottom{
    padding:22px 34px; background:var(--paper); display:flex; justify-content:space-between;
    align-items:center; flex-wrap:wrap; gap:14px;
  }
  .rx-bottom p{font-size:13px; color:var(--ink-soft); max-width:520px; line-height:1.5;}
  @media (max-width:700px){
    .rx-table td{padding:16px 20px;}
    .rx-top{padding:22px 20px; flex-direction:column;}
    .rx-top .rx-note{text-align:left;}
    .rx-bottom{padding:18px 20px;}
  }

  /* ---------- ENGAGEMENTS ---------- */
  .engage-band{background:var(--ink); color:var(--paper);}
  .engage-grid{
    display:grid; grid-template-columns:repeat(4,1fr); gap:30px;
  }
  .engage-item .n{font-family:var(--mono); color:var(--signal); font-size:13px; margin-bottom:10px;}
  .engage-item h3{font-size:17px; margin-bottom:8px; color:#fff;}
  .engage-item p{font-size:13.5px; color:#AEB8B2; line-height:1.55;}
  @media (max-width:900px){.engage-grid{grid-template-columns:1fr 1fr;}}
  @media (max-width:560px){.engage-grid{grid-template-columns:1fr;}}

  /* ---------- CTA BANNER ---------- */
  .cta-banner{
    background:linear-gradient(135deg, var(--signal-dark), var(--signal));
    border-radius:22px; padding:52px 46px; color:#fff;
    display:flex; justify-content:space-between; align-items:center; gap:30px; flex-wrap:wrap;
  }
  .cta-banner h2{font-size:clamp(22px,3vw,30px); color:#fff; max-width:520px; line-height:1.2;}
  .cta-banner .eyebrow{color:#DFF4EE;}
  .cta-banner .eyebrow::before{background:#fff; box-shadow:0 0 0 4px rgba(255,255,255,0.25);}
  .cta-banner .btn-primary{background:#fff; color:var(--signal-dark);}
  .cta-banner .btn-primary:hover{background:#EAF6F2;}

  /* ---------- CONTACT ---------- */
  .contact-grid{display:grid; grid-template-columns:1fr 1fr; gap:56px;}
  .contact-info .row{
    display:flex; gap:16px; padding:18px 0; border-bottom:1px solid var(--line);
  }
  .contact-info .row:first-child{padding-top:0;}
  .contact-info .ic{
    width:38px; height:38px; border-radius:9px; background:rgba(47,143,122,0.1);
    color:var(--signal-dark); display:flex; align-items:center; justify-content:center; flex:none;
  }
  .contact-info .label{font-family:var(--mono); font-size:11px; text-transform:uppercase; letter-spacing:.07em; color:var(--ink-soft); margin-bottom:4px;}
  .contact-info .val{font-size:15.5px; font-weight:500;}
  .contact-info a.val{text-decoration:none;}
  .contact-info a.val:hover{color:var(--signal-dark);}

  .form-panel{background:var(--panel); border:1px solid var(--line); border-radius:18px; padding:34px;}
  .form-panel .field{margin-bottom:18px;}
  .form-panel label{display:block; font-family:var(--mono); font-size:11.5px; text-transform:uppercase; letter-spacing:.06em; color:var(--ink-soft); margin-bottom:8px;}
  .form-panel input, .form-panel textarea{
    width:100%; border:1.5px solid var(--line); border-radius:10px; padding:12px 14px;
    font-family:var(--body); font-size:15px; background:var(--paper); color:var(--ink);
  }
  .form-panel input:focus, .form-panel textarea:focus{outline:2px solid var(--signal); outline-offset:1px; border-color:var(--signal);}
  .form-panel textarea{min-height:100px; resize:vertical;}
  @media (max-width:860px){.contact-grid{grid-template-columns:1fr;}}

  /* ---------- FOOTER ---------- */
  footer{border-top:1px solid var(--line); padding:40px 0;}
  .foot-row{display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:16px;}
  .foot-row .flinks{display:flex; gap:24px; list-style:none; padding:0; margin:0; font-size:13.5px;}
  .foot-row .flinks a{text-decoration:none; color:var(--ink-soft);}
  .foot-row .flinks a:hover{color:var(--ink);}
  .foot-copy{font-family:var(--mono); font-size:12px; color:var(--ink-soft);}

  .reveal{opacity:0; transform:translateY(16px); transition:opacity .6s ease, transform .6s ease;}
  .reveal.in{opacity:1; transform:translateY(0);}

  @media (prefers-reduced-motion: reduce){
    html{scroll-behavior:auto;}
    *{animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important;}
  }