:root{
    --graphite:#1F3F6D;
    --steel:#3D6EA0;
    --steel-2:#4A7CAE;
    --paper:#FFFFFF;
    --paper-2:#EAF1F8;
    --accent:#1477C8;
    --accent-dim:#0F5FA1;
    --mid:#5E7488;
    --line:#4A7398;
    --line-light:#CBDCEA;
    --text-dark:#0F1E2E;
    --text-on-dark:#F2F7FC;
  }
  *{box-sizing:border-box; margin:0; padding:0;}
  html{scroll-behavior:smooth;}
  body{
    font-family:'IBM Plex Sans', sans-serif;
    background:var(--paper);
    color:var(--text-dark);
    line-height:1.55;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4{
    font-family:'Big Shoulders Display', sans-serif;
    font-weight:700;
    text-transform:uppercase;
    letter-spacing:0.01em;
    color:var(--text-dark);
    line-height:1.02;
  }
  .mono{
    font-family:'IBM Plex Mono', monospace;
    letter-spacing:0.04em;
  }
  a{color:inherit; text-decoration:none;}
  img,svg{display:block; max-width:100%;}
  .wrap{max-width:1180px; margin:0 auto; padding:0 28px;}

  /* ---------- header ---------- */
  header{
    position:sticky; top:0; z-index:100;
    background:#fff;
    border-bottom:2px solid var(--graphite);
  }
  .nav-inner{
    display:flex; align-items:center; justify-content:space-between;
    padding:14px 28px;
    max-width:1180px; margin:0 auto;
  }
  .logo{display:flex; align-items:center; gap:14px;}
  .logo-mark-img{height:64px; width:auto; flex-shrink:0;}
  .logo-text{color:var(--graphite); border-left:1px solid var(--line-light); padding-left:14px;}
  .logo-text .sub{
    font-family:'IBM Plex Mono', monospace;
    font-size:10px; letter-spacing:0.1em;
    color:var(--accent-dim); text-transform:uppercase;
    max-width:12ch; line-height:1.4;
  }
  nav.main-nav{display:flex; gap:2px; align-items:center;}
  nav.main-nav a{
    background:none; border:none; cursor:pointer;
    font-family:'IBM Plex Mono', monospace;
    font-size:12px; letter-spacing:0.08em;
    color:var(--steel); text-transform:uppercase;
    padding:10px 16px; position:relative;
    transition:color .2s ease;
  }
  nav.main-nav a:hover{color:var(--graphite);}
  nav.main-nav a.active{color:var(--accent);}
  nav.main-nav a.active::after{
    content:""; position:absolute; left:16px; right:16px; bottom:4px; height:2px;
    background:var(--accent);
  }
  .nav-cta{
    display:inline-block; margin-left:8px;
    padding:9px 18px;
    border:1px solid var(--accent);
    color:var(--accent) !important;
    font-family:'IBM Plex Mono', monospace;
    font-size:11.5px; letter-spacing:0.08em; text-transform:uppercase;
  }
  .nav-cta:hover{background:var(--accent); color:#fff !important;}
  .lang-switch{
    display:flex; align-items:center; gap:6px; margin-left:14px;
    font-family:'IBM Plex Mono', monospace; font-size:11.5px;
  }
  .lang-switch span{color:var(--line-light);}
  .lang-switch button{
    background:none; border:none; cursor:pointer; padding:4px 3px;
    color:var(--steel); letter-spacing:0.05em;
  }
  .lang-switch button.active{color:var(--accent); font-weight:600;}
  .lang-switch button:hover{color:var(--graphite);}
  .hamburger{display:none; background:none; border:none; cursor:pointer; padding:8px;}
  .hamburger span{display:block; width:22px; height:2px; background:var(--graphite); margin:5px 0;}
  .mobile-nav{display:none;}

  /* ---------- page sections ---------- */
  main{display:block; animation:fade .35s ease;}
  @keyframes fade{from{opacity:0; transform:translateY(6px);} to{opacity:1; transform:translateY(0);}}

  /* ---------- hero ---------- */
  .hero{
    background:var(--paper);
    color:var(--text-dark);
    position:relative;
    overflow:hidden;
    border-bottom:1px solid var(--line-light);
  }
  .hero-grid{
    max-width:1180px; margin:0 auto; padding:60px 28px 0;
    display:grid; grid-template-columns:1.05fr 0.95fr; gap:52px; align-items:center;
  }
  .eyebrow{
    font-family:'IBM Plex Mono', monospace; font-size:12px; letter-spacing:0.16em;
    color:var(--accent-dim); text-transform:uppercase; margin-bottom:18px;
    display:flex; align-items:center; gap:10px;
  }
  .eyebrow::before{content:""; width:22px; height:1px; background:var(--accent-dim);}
  .hero h1{
    font-size:clamp(38px, 5vw, 58px);
    color:var(--graphite);
    margin-bottom:22px;
    max-width:12ch;
  }
  .hero h1 em{font-style:normal; color:var(--accent);}
  .hero p.lead{
    font-size:16.5px; color:#3E5164; max-width:46ch; margin-bottom:32px;
  }
  .btn-row{display:flex; gap:14px; flex-wrap:wrap;}
  .btn{
    padding:14px 26px;
    font-family:'IBM Plex Mono', monospace; font-size:12.5px; letter-spacing:0.06em;
    text-transform:uppercase; border:1px solid transparent; cursor:pointer;
    display:inline-flex; align-items:center; gap:8px;
  }
  .btn-primary{background:var(--accent); color:#fff;}
  .btn-primary:hover{background:var(--accent-dim);}
  .btn-ghost{border-color:var(--graphite); color:var(--graphite);}
  .btn-ghost:hover{background:var(--graphite); color:#fff;}

  /* blueprint card — signature hero element */
  .blueprint-card{
    position:relative;
    background:var(--graphite);
    padding:36px 28px 30px;
  }
  .blueprint-card::before,
  .blueprint-card::after,
  .blueprint-card .tick-tl,
  .blueprint-card .tick-br{
    content:""; position:absolute; width:18px; height:18px;
    border:2px solid var(--accent);
  }
  .blueprint-card::before{top:-9px; left:-9px; border-right:none; border-bottom:none;}
  .blueprint-card::after{bottom:-9px; right:-9px; border-left:none; border-top:none;}
  .blueprint-card .tick-tl{top:-9px; right:-9px; border-left:none; border-bottom:none;}
  .blueprint-card .tick-br{bottom:-9px; left:-9px; border-right:none; border-top:none;}
  .blueprint-label{
    font-family:'IBM Plex Mono', monospace; font-size:10.5px; letter-spacing:0.12em;
    color:var(--accent); text-transform:uppercase; margin-bottom:14px;
  }
  .hero-visual{position:relative;}
  .spec-tag{
    position:absolute;
    font-family:'IBM Plex Mono', monospace;
    font-size:10.5px; color:var(--graphite);
    border:1px solid var(--line-light); padding:6px 9px;
    background:#fff;
    letter-spacing:0.03em;
  }

  /* data strip */
  .data-strip{
    border-top:1px solid var(--line-light);
    margin-top:44px;
  }
  .data-strip .wrap{
    display:grid; grid-template-columns:repeat(3,1fr);
  }
  .data-strip .cell{
    padding:22px 28px;
    border-left:1px solid var(--line-light);
  }
  .data-strip .cell:first-child{border-left:none;}
  .data-strip .cell .k{
    font-family:'IBM Plex Mono', monospace; font-size:11px; letter-spacing:0.1em;
    color:var(--accent-dim); text-transform:uppercase; margin-bottom:6px;
  }
  .data-strip .cell .v{
    font-family:'Big Shoulders Display', sans-serif; font-size:17px; color:var(--graphite); text-transform:none; font-weight:600;
  }

  /* ---------- section generic ---------- */
  section.block{padding:76px 0;}
  section.block.tight{padding:56px 0;}
  .section-head{margin-bottom:44px; max-width:640px;}
  .section-head .eyebrow{color:var(--accent-dim);}
  .section-head h2{font-size:clamp(28px,3.6vw,40px); color:var(--text-dark);}
  .section-head p{color:#4B5761; margin-top:14px; font-size:15.5px;}
  .on-dark .section-head h2{color:#fff;}
  .on-dark .section-head p{color:#B7C0C8;}

  .divider{height:1px; background:var(--line-light); border:none;}

  /* feature cards */
  .grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line-light); border:1px solid var(--line-light);}
  .feat-card{background:var(--paper); padding:32px 28px;}
  .feat-num{font-family:'IBM Plex Mono', monospace; font-size:11px; color:var(--accent); margin-bottom:14px; letter-spacing:0.08em;}
  .feat-card h3{font-size:20px; margin-bottom:10px; text-transform:none; color:var(--text-dark); font-weight:700;}
  .feat-card p{font-size:14.5px; color:#4B5761;}

  /* sectors */
  .sector-row{
    display:grid; grid-template-columns:repeat(3, 1fr); border:1px solid var(--line-light); background:var(--line-light); gap:1px;
  }
  .sector-cell{
    background:#fff; color:var(--text-dark); padding:26px 22px; text-align:left;
    min-height:130px; display:flex; flex-direction:column; justify-content:space-between;
    border-top:3px solid var(--accent); transition:background .2s ease, color .2s ease;
  }
  .sector-cell:hover{background:var(--graphite); color:#fff;}
  .sector-cell .tag{font-family:'IBM Plex Mono', monospace; font-size:10px; color:var(--accent); letter-spacing:0.08em;}
  .sector-cell:hover .tag{color:#5FB1F0;}
  .sector-cell .name{font-family:'Big Shoulders Display', sans-serif; font-size:18px; text-transform:uppercase; margin-top:14px;}

  /* products — alternating feature rows (Norma-style) */
  .feature-list{display:flex; flex-direction:column;}
  .feature-row{
    display:grid; grid-template-columns:1fr 1fr; gap:64px; align-items:center;
    padding:52px 0; border-bottom:1px solid var(--line-light);
  }
  .feature-list .feature-row:first-child{padding-top:0;}
  .feature-list .feature-row:last-child{border-bottom:none; padding-bottom:0;}
  .feature-row:nth-child(even) .feature-media{order:2;}
  .feature-media{
    background:var(--paper); height:320px; overflow:hidden;
    display:flex; align-items:center; justify-content:center;
  }
  .feature-media img{width:100%; height:100%; object-fit:contain;}
  .feature-text .num{
    font-family:'IBM Plex Mono', monospace; font-size:12px; color:var(--accent);
    letter-spacing:0.1em; margin-bottom:14px;
  }
  .feature-text h3{
    font-family:'Big Shoulders Display', sans-serif; font-size:30px; font-weight:700;
    text-transform:none; color:var(--text-dark); margin-bottom:16px; line-height:1.08;
  }
  .feature-text p{font-size:15px; color:#4B5761; max-width:44ch;}

  .service-list{display:grid; grid-template-columns:repeat(3,1fr); gap:24px; margin-top:8px;}

  /* catalog downloads */
  .catalog-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line-light); border:1px solid var(--line-light);}
  .catalog-card{background:#fff; padding:0; display:flex; flex-direction:column;}
  .catalog-card .cover{
    width:100%; aspect-ratio:3/4.24; overflow:hidden; border-bottom:1px solid var(--line-light);
    background:#F0F1F3;
  }
  .catalog-card .cover img{width:100%; height:100%; object-fit:cover; display:block;}
  .catalog-card .body{padding:24px 24px 28px; display:flex; flex-direction:column; flex-grow:1;}
  .catalog-card h3{font-size:17px; margin-bottom:8px; font-weight:700; text-transform:none;}
  .catalog-card p{font-size:13.5px; color:#4B5761; margin-bottom:18px; flex-grow:1;}
  .catalog-card .meta{
    font-family:'IBM Plex Mono', monospace; font-size:10.5px; color:var(--mid);
    letter-spacing:0.05em; margin-bottom:14px; text-transform:uppercase;
  }
  .catalog-card a.dl-link{
    display:inline-flex; align-items:center; gap:8px;
    font-family:'IBM Plex Mono', monospace; font-size:12px; letter-spacing:0.06em;
    color:var(--accent-dim); text-transform:uppercase; border-bottom:1px solid var(--accent-dim);
    padding-bottom:3px; align-self:flex-start;
  }
  .catalog-card a.dl-link:hover{color:var(--accent); border-color:var(--accent);}
  .service-item{border-top:2px solid var(--accent); padding-top:16px;}
  .service-item h4{font-size:16px; text-transform:none; font-weight:700; margin-bottom:8px;}
  .service-item p{font-size:13.5px; color:#4B5761;}

  /* about page */
  .about-hero{
    background:var(--graphite); color:#fff; padding:64px 0 56px;
    border-bottom:1px solid rgba(255,255,255,0.08);
  }
  .about-hero h1{color:#fff; font-size:clamp(32px,4.6vw,48px); max-width:16ch;}
  .about-hero p{color:#C3CBD1; max-width:56ch; margin-top:18px; font-size:15.5px;}

  .value-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:32px;}
  .value-item .num{font-family:'Big Shoulders Display', sans-serif; font-size:44px; color:var(--paper-2); -webkit-text-stroke:1.5px var(--steel); color:transparent; line-height:1;}
  .value-item h3{margin-top:6px; font-size:19px; text-transform:none; font-weight:700;}
  .value-item p{font-size:14.5px; color:#4B5761; margin-top:8px;}

  .story-cols{display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:start;}
  .story-cols p{color:#3A4650; font-size:15.5px; margin-bottom:16px;}
  .quote-block{
    border-left:3px solid var(--accent); padding-left:22px; margin-top:6px;
  }
  .quote-block p{
    font-family:'Big Shoulders Display', sans-serif; font-size:22px; text-transform:none; font-weight:600;
    color:var(--text-dark); line-height:1.3;
  }
  .quote-block span{
    display:block; margin-top:10px; font-family:'IBM Plex Mono', monospace; font-size:11.5px; color:var(--mid); letter-spacing:0.05em;
  }

  .badge-row{display:flex; gap:14px; flex-wrap:wrap; margin-top:28px;}
  .badge{
    border:1px solid var(--line-light); padding:9px 16px;
    font-family:'IBM Plex Mono', monospace; font-size:11.5px; letter-spacing:0.06em; color:var(--steel);
  }

  /* contact page */
  .contact-hero{background:var(--graphite); color:#fff; padding:60px 0 50px; border-bottom:1px solid rgba(255,255,255,0.08);}
  .contact-hero h1{color:#fff; font-size:clamp(32px,4.6vw,46px);}
  .contact-hero p{color:#C3CBD1; margin-top:14px; max-width:50ch; font-size:15.5px;}

  .contact-grid{display:grid; grid-template-columns:0.9fr 1.1fr; gap:56px; align-items:start;}
  .map-frame{border:1px solid var(--line-light); overflow:hidden;}
  .map-frame iframe{display:block; filter:grayscale(0.15) contrast(1.02);}
  .info-block{margin-bottom:30px;}
  .info-block .k{font-family:'IBM Plex Mono', monospace; font-size:11px; color:var(--accent-dim); letter-spacing:0.1em; margin-bottom:6px; text-transform:uppercase;}
  .info-block .v{font-size:16px; color:var(--text-dark);}
  .info-block .v small{display:block; font-size:13px; color:var(--mid); margin-top:3px;}

  form.contact-form{display:flex; flex-direction:column; gap:16px;}
  .form-row{display:grid; grid-template-columns:1fr 1fr; gap:16px;}
  label{
    font-family:'IBM Plex Mono', monospace; font-size:11px; letter-spacing:0.08em;
    color:var(--steel); text-transform:uppercase; display:block; margin-bottom:7px;
  }
  input, textarea, select{
    width:100%; border:1px solid var(--line-light); background:#fff;
    padding:12px 13px; font-family:'IBM Plex Sans', sans-serif; font-size:14.5px; color:var(--text-dark);
  }
  input:focus, textarea:focus, select:focus{outline:2px solid var(--accent); outline-offset:1px; border-color:var(--accent);}
  textarea{resize:vertical; min-height:110px;}
  .submit-row{display:flex; align-items:center; gap:18px; margin-top:6px;}
  .form-note{font-size:12.5px; color:var(--mid);}
  .form-success{
    display:none; background:#EAF1F8; border:1px solid var(--accent); padding:16px 18px;
    font-family:'IBM Plex Mono', monospace; font-size:13px; color:var(--accent-dim); margin-top:14px;
  }
  .form-success.show{display:block;}

  /* footer */
  footer{background:var(--graphite); color:#8B95A0; padding:44px 0 28px; margin-top:0;}
  .footer-grid{display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:32px; padding-bottom:32px; border-bottom:1px solid rgba(255,255,255,0.08);}
  .footer-grid h5{
    font-family:'IBM Plex Mono', monospace; font-size:11px; color:#fff; letter-spacing:0.1em;
    text-transform:uppercase; margin-bottom:14px;
  }
  .footer-grid a, .footer-grid p{display:block; font-size:13.5px; color:#8B95A0; margin-bottom:9px;}
  .footer-grid a:hover{color:var(--accent);}
  .footer-bottom{
    display:flex; justify-content:space-between; align-items:center; padding-top:22px;
    font-family:'IBM Plex Mono', monospace; font-size:11.5px; flex-wrap:wrap; gap:10px;
  }

  /* focus visibility */
  button:focus-visible, a:focus-visible{outline:2px solid var(--accent); outline-offset:2px;}

  @media (prefers-reduced-motion:reduce){
    html{scroll-behavior:auto;}
    main{animation:none;}
  }

  /* ---------- responsive ---------- */
  @media (max-width:920px){
    nav.main-nav{display:none;}
    .hamburger{display:block;}
    .nav-inner.open ~ .mobile-nav{display:flex;}
    .mobile-nav{
      display:none; flex-direction:column; background:#fff;
      border-top:1px solid var(--line-light); padding:8px 28px 18px;
    }
    .mobile-nav a{
      background:none; border:none; color:var(--steel); text-align:left;
      font-family:'IBM Plex Mono', monospace; font-size:13px; letter-spacing:0.06em;
      padding:12px 0; border-bottom:1px solid var(--line-light); text-transform:uppercase;
    }
    .mobile-nav a.active{color:var(--accent);}
    .lang-switch{margin-left:0; margin-top:14px;}
    .hero-grid{grid-template-columns:1fr; padding-top:44px;}
    .hero-visual{order:-1;}
    .data-strip .wrap{grid-template-columns:1fr; }
    .data-strip .cell{border-left:none; border-top:1px solid rgba(255,255,255,0.08);}
    .data-strip .cell:first-child{border-top:none;}
    .grid-3{grid-template-columns:1fr;}
    .sector-row{grid-template-columns:repeat(2,1fr);}
    .feature-row{grid-template-columns:1fr; gap:22px; padding:34px 0;}
    .feature-row:nth-child(even) .feature-media{order:0;}
    .feature-media{height:220px;}
    .feature-text h3{font-size:24px;}
    .service-list{grid-template-columns:repeat(2,1fr);}
    .catalog-grid{grid-template-columns:1fr;}
    .story-cols{grid-template-columns:1fr; gap:30px;}
    .value-grid{grid-template-columns:1fr; gap:26px;}
    .contact-grid{grid-template-columns:1fr; gap:36px;}
    .form-row{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr 1fr; gap:26px;}
  }