:root{
    --ink:#0B0C0E;
    --ink-soft:#17181B;
    --paper:#FAFAF8;
    --paper-dim:#EFEEEA;
    --steel:#6B6F76;
    --steel-light:#9A9DA3;
    --line: rgba(255,255,255,0.12);
    --line-dark: rgba(11,12,14,0.12);
    --accent:#2F5EFF;
    --accent-dim: rgba(47,94,255,0.14);
    --radius: 14px;
    --maxw: 1180px;
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  @media (prefers-reduced-motion: reduce){
    html{scroll-behavior:auto;}
    *{animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important;}
  }
  body{
    margin:0;
    background:var(--paper);
    color:var(--ink);
    font-family:'Inter',system-ui,sans-serif;
    -webkit-font-smoothing:antialiased;
    line-height:1.5;
  }
  a{color:inherit;}
  img{max-width:100%;display:block;}
  .mono{font-family:'IBM Plex Mono',monospace;}
  .wrap{max-width:var(--maxw); margin:0 auto; padding:0 28px;}
  :focus-visible{outline:2px solid var(--accent); outline-offset:3px; border-radius:4px;}

  /* ---------- NAV ---------- */
  header{
    position:sticky; top:0; z-index:50;
    background:rgba(250,250,248,0.86);
    backdrop-filter: blur(10px);
    border-bottom:1px solid var(--line-dark);
  }
  .nav{display:flex; align-items:center; justify-content:space-between; padding:18px 28px; max-width:var(--maxw); margin:0 auto;}
  .logo{font-weight:900; font-size:20px; letter-spacing:-0.01em;}
  .logo .dot{color:var(--accent);}
  nav.links{display:flex; gap:32px; font-size:14.5px; font-weight:500;}
  nav.links a{text-decoration:none; color:var(--ink); opacity:0.75; transition:opacity .15s;}
  nav.links a:hover{opacity:1;}
  .nav-cta{display:flex; align-items:center; gap:18px;}
  .phone-pill{font-size:14px; font-weight:600; letter-spacing:0.01em; display:none;}
  .btn{
    display:inline-flex; align-items:center; justify-content:center; gap:8px;
    padding:12px 22px; border-radius:999px; font-weight:700; font-size:14.5px;
    text-decoration:none; cursor:pointer; border:1px solid transparent;
    transition: transform .15s ease, background .15s ease, box-shadow .15s ease;
    white-space:nowrap;
  }
  .btn:active{transform:scale(0.97);}
  .btn-primary{background:var(--ink); color:var(--paper);}
  .btn-primary:hover{background:var(--accent); box-shadow:0 6px 20px rgba(47,94,255,0.35);}
  .btn-ghost{background:transparent; color:var(--ink); border-color:var(--line-dark);}
  .btn-ghost:hover{border-color:var(--ink);}
  .btn-accent{background:var(--accent); color:#fff;}
  .btn-accent:hover{background:#1e49e0; box-shadow:0 6px 20px rgba(47,94,255,0.4);}
  .btn-block{width:100%;}

  @media (min-width:860px){ .phone-pill{display:inline;} }
  @media (max-width:860px){ nav.links{display:none;} }

  /* ---------- HERO ---------- */
  .hero{
    background:var(--ink);
    color:var(--paper);
    position:relative;
    overflow:hidden;
    padding:96px 0 140px;
  }
  .hero::before{
    content:"";
    position:absolute; inset:0;
    background:
      radial-gradient(600px 300px at 85% 0%, rgba(47,94,255,0.35), transparent 60%),
      repeating-linear-gradient(115deg, transparent 0 68px, rgba(255,255,255,0.035) 68px 69px);
    pointer-events:none;
  }
  .hero-grid{
    position:relative; z-index:1;
    display:grid; grid-template-columns: 1.1fr 0.9fr; gap:56px; align-items:start;
  }
  @media (max-width: 940px){ .hero-grid{grid-template-columns:1fr;} }
  .eyebrow{
    display:inline-flex; align-items:center; gap:8px;
    font-family:'IBM Plex Mono',monospace; font-size:12.5px; letter-spacing:0.14em; text-transform:uppercase;
    color:var(--steel-light); margin-bottom:22px;
  }
  .eyebrow::before{content:""; width:7px; height:7px; border-radius:50%; background:var(--accent); display:inline-block;}
  h1{
    font-size:clamp(38px, 5.6vw, 64px);
    font-weight:900; letter-spacing:-0.03em; line-height:1.02;
    margin:0 0 24px;
  }
  .hero p.lead{
    font-size:18px; color:rgba(250,250,248,0.72); max-width:520px; margin:0 0 34px;
  }
  .hero-actions{display:flex; gap:14px; flex-wrap:wrap; margin-bottom:44px;}
  .hero-badges{display:flex; gap:22px; flex-wrap:wrap;}
  .hero-badge{font-size:13px; color:var(--steel-light);}
  .hero-badge b{color:var(--paper); font-weight:700; display:block; font-size:15px; font-family:'IBM Plex Mono',monospace;}

  /* --- request widget --- */
  .widget{
    background:var(--paper); color:var(--ink);
    border-radius:20px; padding:28px;
    box-shadow: 0 30px 60px rgba(0,0,0,0.35);
    position:relative; z-index:2;
  }
  .widget h3{margin:0 0 4px; font-size:19px; font-weight:800; letter-spacing:-0.01em;}
  .widget .sub{font-size:13.5px; color:var(--steel); margin:0 0 20px;}
  .field{margin-bottom:14px;}
  .field label{
    display:block; font-size:11.5px; font-weight:700; letter-spacing:0.06em; text-transform:uppercase;
    color:var(--steel); margin-bottom:7px; font-family:'IBM Plex Mono',monospace;
  }
  .field select, .field input{
    width:100%; padding:13px 14px; border-radius:10px; border:1.5px solid var(--paper-dim);
    background:var(--paper-dim); font-family:'Inter',sans-serif; font-size:14.5px; font-weight:500; color:var(--ink);
    transition: border-color .15s;
  }
  .field select:focus, .field input:focus{ border-color:var(--accent); outline:none; background:#fff; }
  #widget-result{
    margin-top:16px; padding:14px 16px; border-radius:10px; background:var(--accent-dim);
    font-size:13.5px; line-height:1.5; display:none; border:1px solid rgba(47,94,255,0.25);
  }
  #widget-result.show{display:block;}
  #widget-result .r-title{font-weight:700; color:var(--accent); font-family:'IBM Plex Mono',monospace; font-size:12px; letter-spacing:0.04em; text-transform:uppercase; margin-bottom:4px;}

  /* ---------- PROMISE BAR ---------- */
  .promise-bar{
    background:var(--paper); border-bottom:1px solid var(--line-dark);
    padding:34px 0;
  }
  .promise-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:24px;}
  @media (max-width:760px){ .promise-grid{grid-template-columns:repeat(2,1fr);} }
  .promise-item{display:flex; gap:12px; align-items:flex-start;}
  .promise-item svg{flex-shrink:0; margin-top:2px;}
  .promise-item b{display:block; font-size:14.5px; font-weight:700;}
  .promise-item span{font-size:13px; color:var(--steel);}

  /* ---------- SECTION generic ---------- */
  section{padding:96px 0;}
  .section-head{max-width:640px; margin-bottom:52px;}
  .kicker{
    font-family:'IBM Plex Mono',monospace; font-size:12.5px; letter-spacing:0.14em; text-transform:uppercase;
    color:var(--accent); margin-bottom:14px; display:block; font-weight:500;
  }
  h2{font-size:clamp(28px,3.4vw,40px); font-weight:800; letter-spacing:-0.02em; margin:0 0 14px;}
  .section-head p{color:var(--steel); font-size:16.5px; margin:0;}

  /* ---------- SERVICES ---------- */
  .services-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line-dark); border:1px solid var(--line-dark); border-radius:20px; overflow:hidden;}
  @media (max-width:900px){ .services-grid{grid-template-columns:repeat(2,1fr);} }
  @media (max-width:600px){ .services-grid{grid-template-columns:1fr;} }
  .service-card{
    background:var(--paper); padding:34px 28px; transition:background .15s;
  }
  .service-card:hover{background:#fff;}
  .service-card .num{font-family:'IBM Plex Mono',monospace; font-size:12px; color:var(--steel-light); margin-bottom:20px; display:block;}
  .service-card h3{font-size:18.5px; font-weight:700; margin:0 0 10px; letter-spacing:-0.01em;}
  .service-card p{font-size:14.5px; color:var(--steel); margin:0; line-height:1.55;}
  .service-card .icon{margin-bottom:18px;}

  /* ---------- HOW IT WORKS ---------- */
  .steps{position:relative;}
  .step{
    display:grid; grid-template-columns:88px 1fr; gap:28px; padding:36px 0;
    border-top:1px solid var(--line-dark);
  }
  .step:last-child{border-bottom:1px solid var(--line-dark);}
  .step .step-num{font-family:'IBM Plex Mono',monospace; font-size:34px; font-weight:600; color:var(--paper-dim); -webkit-text-stroke:1.5px var(--ink); color:transparent;}
  .step h3{font-size:20px; font-weight:800; margin:0 0 8px; letter-spacing:-0.01em;}
  .step p{color:var(--steel); font-size:15px; margin:0; max-width:520px;}

  /* ---------- ENGAGEMENTS ---------- */
  .eng-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:20px;}
  @media (max-width:900px){ .eng-grid{grid-template-columns:repeat(2,1fr);} }
  .eng-card{
    background:var(--ink); color:var(--paper); border-radius:16px; padding:28px 24px;
  }
  .eng-card svg{margin-bottom:20px;}
  .eng-card h3{font-size:16px; font-weight:700; margin:0 0 8px;}
  .eng-card p{font-size:13.5px; color:var(--steel-light); margin:0; line-height:1.5;}

  /* ---------- ZONES ---------- */
  .zones{background:var(--paper-dim);}
  .zone-chips{display:flex; flex-wrap:wrap; gap:12px; margin-top:8px;}
  .chip{
    padding:10px 18px; border-radius:999px; background:var(--paper); border:1.5px solid var(--line-dark);
    font-size:14px; font-weight:600; font-family:'IBM Plex Mono',monospace;
  }
  .chip.active{background:var(--ink); color:var(--paper); border-color:var(--ink);}

  /* ---------- DEVIS FORM ---------- */
  .devis{background:var(--ink); color:var(--paper);}
  .devis .section-head p{color:var(--steel-light);}
  .devis-grid{display:grid; grid-template-columns: 1fr 1fr; gap:60px; align-items:start;}
  @media (max-width:860px){ .devis-grid{grid-template-columns:1fr; gap:40px;} }
  .devis-form{display:grid; gap:16px;}
  .devis-form .row2{display:grid; grid-template-columns:1fr 1fr; gap:16px;}
  @media (max-width:520px){ .devis-form .row2{grid-template-columns:1fr;} }
  .devis-form label{
    font-size:11.5px; font-weight:700; letter-spacing:0.06em; text-transform:uppercase;
    color:var(--steel-light); margin-bottom:7px; display:block; font-family:'IBM Plex Mono',monospace;
  }
  .devis-form input, .devis-form select, .devis-form textarea{
    width:100%; padding:13px 14px; border-radius:10px; border:1.5px solid rgba(255,255,255,0.14);
    background:var(--ink-soft); color:var(--paper); font-family:'Inter',sans-serif; font-size:14.5px;
  }
  .devis-form input:focus, .devis-form select:focus, .devis-form textarea:focus{border-color:var(--accent); outline:none;}
  .devis-form textarea{resize:vertical; min-height:90px;}
  .field-hidden{position:absolute; left:-9999px; width:1px; height:1px; overflow:hidden;}
  .consent-line{display:flex; gap:10px; align-items:flex-start; font-size:12.5px; color:var(--steel-light); line-height:1.5; cursor:pointer;}
  .consent-line input{width:auto; margin-top:3px; flex-shrink:0;}
  .consent-line a{color:var(--paper); text-decoration:underline;}
  .devis-form button[disabled]{opacity:0.6; cursor:not-allowed;}
  .devis-side .contact-line{display:flex; gap:14px; align-items:center; margin-bottom:18px; font-size:15.5px;}
  .devis-side .contact-line svg{flex-shrink:0;}
  .devis-side .contact-line a{text-decoration:none; font-weight:700;}
  .devis-note{font-size:13px; color:var(--steel-light); margin-top:22px; line-height:1.6; border-top:1px solid rgba(255,255,255,0.12); padding-top:22px;}
  #form-confirm{display:none; margin-top:14px; font-size:13.5px; color:#8FE3B8; font-family:'IBM Plex Mono',monospace;}
  #form-confirm.show{display:block;}
  #form-error{display:none; margin-top:14px; font-size:13.5px; color:#FF8A8A; font-family:'IBM Plex Mono',monospace;}
  #form-error.show{display:block;}

  /* ---------- FOOTER ---------- */
  footer{background:var(--paper-dim); padding:56px 0 28px; border-top:1px solid var(--line-dark);}
  .foot-grid{display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:32px; margin-bottom:44px;}
  @media (max-width:760px){ .foot-grid{grid-template-columns:1fr 1fr; row-gap:32px;} }
  .foot-grid h4{font-size:12.5px; text-transform:uppercase; letter-spacing:0.08em; color:var(--steel); margin:0 0 16px; font-family:'IBM Plex Mono',monospace;}
  .foot-grid ul{list-style:none; padding:0; margin:0; display:grid; gap:10px;}
  .foot-grid a{text-decoration:none; font-size:14px; color:var(--ink); opacity:0.75;}
  .foot-grid a:hover{opacity:1;}
  .foot-bottom{display:flex; justify-content:space-between; align-items:center; padding-top:24px; border-top:1px solid var(--line-dark); font-size:13px; color:var(--steel); flex-wrap:wrap; gap:12px;}