:root{
    /* Verbindliche Corporate-Design-Palette (siehe cowork/CORPORATE_DESIGN.md, EA-CDG-2026-V1) */
    --ink:#101B2D; --ink-soft:#48586F; --ink-faint:#6B7A93;
    --signal:#155EEF; --signal-deep:#0F49C2; --signal-soft:#EAF1FF; --signal-glow:rgba(21,94,239,0.35);
    --teal:#1E8A9A;
    --amber:#C97D2E; --amber-soft:#FCEEDD;
    --go:#1E9E48; --go-soft:#E7F5EC;
    --line:#E2E8F1; --grid-line:#EAEFF6; --paper:#FFFFFF; --paper-soft:#F7F9FC; --paper-deep:#0F1B2E;
    /* Text-/UI-Töne auf dunklem Grund (Header/Footer/Hero) — kein eigenes Markenfarbschema,
       nur abgestufte Helligkeiten der Deep-Navy-Familie für Lesbarkeit auf var(--paper-deep). */
    --on-dark:#FFFFFF; --on-dark-soft:rgba(255,255,255,0.82); --on-dark-faint:rgba(255,255,255,0.54);
    --mono: 'JetBrains Mono', monospace;
    --display: 'Space Grotesk', sans-serif;
    --body: 'Inter', sans-serif;
    /* Spalte, nicht Full-Bleed. Padding in px-clamp — nicht 6vw, sonst frisst
       der Innenabstand auf Ultrawide den max-width (1140 − 2×6vw ≈ 730 px). */
    --wrap-max: 1280px;
    --wrap-pad: clamp(20px, 4vw, 40px);
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{margin:0;font-family:var(--body);color:var(--ink);background:var(--paper);line-height:1.55;
    -webkit-font-smoothing:antialiased;}
  h1,h2,h3,h4{font-family:var(--display);margin:0;letter-spacing:-0.012em;}
  a{color:inherit;text-decoration:none;}
  @media (prefers-reduced-motion: reduce){ *{animation-duration:0.001ms !important; transition-duration:0.001ms !important;} }

  .wrap{max-width:var(--wrap-max);margin:0 auto;padding-left:var(--wrap-pad);padding-right:var(--wrap-pad);}
  .crumbs-bar{background:var(--paper);border-bottom:1px solid var(--line);}
  .crumbs-bar .wrap{padding-top:12px;padding-bottom:12px;}
  .crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:0;font-size:13px;line-height:1.4;color:var(--ink-faint);}
  .crumbs a{color:var(--ink-soft);font-weight:600;}
  .crumbs a:hover{color:var(--signal);}
  .crumbs .sep{color:var(--ink-faint);user-select:none;}
  .crumbs [aria-current="page"]{color:var(--ink);font-weight:600;}
  section{padding:88px 0;position:relative;}

  /* ---------- CAD grid backdrop ---------- */
  .grid-bg{
    background-image:
      linear-gradient(var(--grid-line) 1px, transparent 1px),
      linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 34px 34px;
    background-position: -1px -1px;
  }
  .hero.grid-bg{animation:gridDrift 50s linear infinite;}
  @keyframes gridDrift{ from{background-position:-1px -1px;} to{background-position:-35px -35px;} }
  .grid-fade::after{
    content:"";position:absolute;inset:0;pointer-events:none;
    background:linear-gradient(180deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.65) 72%, #fff 100%);
  }

  /* ---------- CAD corner marks ---------- */
  .corners{position:relative;}
  .corners::before,.corners::after{content:"";position:absolute;width:13px;height:13px;pointer-events:none;}
  .corners::before{top:-1px;left:-1px;border-top:1.5px solid var(--ink-faint);border-left:1.5px solid var(--ink-faint);}
  .corners::after{bottom:-1px;right:-1px;border-bottom:1.5px solid var(--ink-faint);border-right:1.5px solid var(--ink-faint);}
  .corners .cm-tr,.corners .cm-bl{position:absolute;width:13px;height:13px;pointer-events:none;}
  .corners .cm-tr{top:-1px;right:-1px;border-top:1.5px solid var(--ink-faint);border-right:1.5px solid var(--ink-faint);}
  .corners .cm-bl{bottom:-1px;left:-1px;border-bottom:1.5px solid var(--ink-faint);border-left:1.5px solid var(--ink-faint);}

  .eyebrow{font-family:var(--display);font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--signal);font-weight:600;margin-bottom:16px;display:flex;align-items:center;gap:9px;}
  .eyebrow .dot{width:6px;height:6px;border-radius:50%;background:currentColor;display:inline-block;flex-shrink:0;}

  /* live signal pulse */
  .pulse-dot{position:relative;width:8px;height:8px;border-radius:50%;background:var(--go);flex-shrink:0;}
  .pulse-dot::after{content:"";position:absolute;inset:-5px;border-radius:50%;border:1.5px solid var(--go);animation:pulseRing 2.2s ease-out infinite;}
  @keyframes pulseRing{0%{transform:scale(0.6);opacity:0.9;}100%{transform:scale(2.1);opacity:0;}}
  .signal-pill{display:inline-flex;align-items:center;gap:9px;font-family:var(--mono);font-size:10.5px;letter-spacing:.06em;color:var(--ink-soft);background:var(--paper-soft);border:1px solid var(--line);border-radius:999px;padding:7px 14px 7px 11px;}

  /* ---------- header ---------- */
  header{position:sticky;top:0;background:var(--paper-deep);border-bottom:1px solid rgba(255,255,255,0.16);z-index:50;padding-top:env(safe-area-inset-top,0px);}
  .to-top-float{position:fixed;right:max(16px, env(safe-area-inset-right, 0px));bottom:calc(20px + env(safe-area-inset-bottom, 0px));z-index:80;width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:var(--paper);display:flex;align-items:center;justify-content:center;color:var(--ink);cursor:pointer;box-shadow:0 8px 22px rgba(15,27,46,0.12);opacity:0;pointer-events:none;transform:translateY(8px);transition:opacity .2s ease, transform .2s ease, background .15s ease, border-color .15s ease, color .15s ease;}
  .to-top-float.is-visible{opacity:1;pointer-events:auto;transform:none;}
  .to-top-float:hover{background:var(--paper-soft);border-color:var(--signal);color:var(--signal);}
  .to-top-float svg{width:18px;height:18px;}
  .header-inner{display:flex;align-items:center;justify-content:space-between;padding-top:17px;padding-bottom:17px;}
  .brand-lockup{display:flex;align-items:center;gap:12px;}
  .brand-mark{height:62px;width:auto;flex-shrink:0;display:block;}
  .brand-text{display:flex;flex-direction:column;line-height:1.15;}
  .brand-energy{font-family:var(--display);font-size:10.5px;font-weight:600;letter-spacing:.14em;color:var(--on-dark-faint);}
  .brand-architects{font-family:var(--display);font-size:16px;font-weight:700;letter-spacing:.005em;color:#fff;}
  @media (max-width:340px){ .brand-mark{height:46px;} .brand-architects{font-size:14px;} }
  header nav{display:flex;align-items:center;gap:28px;align-self:stretch;}
  header nav a.nlink{font-size:13px;font-weight:600;color:var(--on-dark-soft);}
  header nav a.nlink:hover{color:#fff;}
  .nav-dd{position:relative;align-self:stretch;display:flex;align-items:center;}
  .nav-dd > .nlink{display:inline-flex;align-items:center;gap:6px;height:100%;}
  .nav-dd-menu{
    display:none;position:absolute;top:100%;left:0;min-width:280px;
    background:var(--paper-deep);border:1px solid rgba(255,255,255,0.12);border-radius:10px;
    padding:8px 0;z-index:70;box-shadow:0 16px 40px rgba(3,7,14,0.35);
  }
  .nav-dd:hover .nav-dd-menu,.nav-dd:focus-within .nav-dd-menu{display:block;}
  .nav-dd-menu a{
    display:block;padding:9px 16px;font-size:13px;font-weight:600;color:var(--on-dark-soft);line-height:1.35;
  }
  .nav-dd-menu a:hover{color:#fff;background:rgba(21,94,239,0.22);}
  .nav-dd-menu .dd-num{font-family:var(--mono);font-size:10px;letter-spacing:.06em;color:var(--signal);display:block;margin-bottom:2px;}
  header nav a.nav-cta{background:var(--signal);color:#fff;padding:10px 17px;border-radius:7px;font-size:13px;font-weight:600;white-space:nowrap;
    box-shadow:0 1px 0 rgba(255,255,255,0.2) inset, 0 6px 16px rgba(21,94,239,0.3);transition:transform .15s ease, box-shadow .15s ease, background .15s ease;}
  header nav a.nav-cta:hover{background:var(--signal-deep);transform:translateY(-1px);box-shadow:0 10px 22px rgba(21,94,239,0.4);}
  .cta-short{display:none;}
  .nav-toggle{
    display:none;align-items:center;justify-content:center;
    width:44px;height:44px;margin:0;padding:0;flex-shrink:0;
    border:1px solid rgba(255,255,255,0.18);border-radius:8px;
    background:rgba(255,255,255,0.06);color:#fff;cursor:pointer;
  }
  .nav-toggle:hover,.nav-toggle:focus-visible{background:rgba(21,94,239,0.28);border-color:var(--signal);outline:none;}
  .nav-toggle-icon{width:22px;height:22px;display:block;}
  .nav-drawer-backdrop{
    position:fixed;inset:0;z-index:85;background:rgba(3,7,14,0.55);
  }
  .nav-drawer{
    position:fixed;top:0;right:0;bottom:0;z-index:90;
    width:min(22rem, 88vw);overflow-y:auto;
    background:var(--paper-deep);border-left:1px solid rgba(255,255,255,0.12);
    padding:calc(12px + env(safe-area-inset-top, 0px)) 18px calc(24px + env(safe-area-inset-bottom, 0px));
    box-shadow:-18px 0 40px rgba(3,7,14,0.35);
  }
  .nav-drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px;}
  .nav-drawer-title{margin:0;font-family:var(--display);font-size:15px;font-weight:700;color:#fff;}
  .nav-drawer-close{
    width:44px;height:44px;border-radius:8px;border:1px solid rgba(255,255,255,0.18);
    background:transparent;color:#fff;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;
  }
  .nav-drawer-close svg{width:18px;height:18px;}
  .nav-drawer-list{display:flex;flex-direction:column;gap:4px;}
  .nav-drawer-group{display:flex;flex-direction:column;gap:2px;margin-bottom:10px;padding-bottom:12px;border-bottom:1px solid rgba(255,255,255,0.1);}
  .nav-drawer-label{margin:0 0 8px;font-family:var(--mono);font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--signal);}
  .nav-drawer-list a.nlink,
  .nav-drawer-group a{
    display:block;padding:12px 10px;border-radius:8px;font-size:15px;font-weight:600;color:var(--on-dark-soft);line-height:1.35;
  }
  .nav-drawer-list a.nlink:hover,
  .nav-drawer-group a:hover{color:#fff;background:rgba(21,94,239,0.22);}
  .nav-drawer-group .dd-num{font-family:var(--mono);font-size:10px;letter-spacing:.06em;color:var(--signal);display:block;margin-bottom:2px;}
  .nav-drawer-cta{
    margin-top:16px;text-align:center;justify-content:center;
    background:var(--signal);color:#fff !important;padding:14px 17px;border-radius:8px;font-size:15px;font-weight:600;
    box-shadow:0 1px 0 rgba(255,255,255,0.2) inset, 0 6px 16px rgba(21,94,239,0.3);
  }
  .nav-drawer-cta .cta-short{display:none;}
  .nav-drawer-cta .cta-full{display:inline;}
  body.nav-open{overflow:hidden;}
  @media (max-width:800px){
    header nav a.nlink, header nav .nav-dd{display:none;}
    .nav-toggle{display:inline-flex;}
    .header-inner{gap:12px;}
    .brand-mark{height:52px;}
    section{padding:56px 0;}
  }
  @media (max-width:420px){ header nav a.nav-cta .cta-full{display:none;} header nav a.nav-cta .cta-short{display:inline;} header nav a.nav-cta{padding:10px 14px;} }
  @media (min-width:801px){
    .nav-toggle,.nav-drawer,.nav-drawer-backdrop{display:none !important;}
  }

  /* ---------- buttons ---------- */
  .btn{display:inline-flex;align-items:center;gap:9px;font-weight:600;font-size:14.5px;padding:14px 24px;border-radius:9px;position:relative;
    transition:transform .16s cubic-bezier(.2,.7,.3,1), box-shadow .16s ease, background .16s ease, border-color .16s ease;}
  .btn-primary{background:var(--signal);color:#fff;
    box-shadow:0 1px 0 rgba(255,255,255,0.25) inset, 0 1px 1px rgba(21,94,239,0.4), 0 10px 26px rgba(21,94,239,0.32);}
  .btn-primary:hover{background:var(--signal-deep);transform:translateY(-2px);box-shadow:0 1px 0 rgba(255,255,255,0.25) inset, 0 14px 30px rgba(21,94,239,0.4);}
  .btn-primary:active{transform:translateY(0);}
  .btn-ghost{border:1px solid var(--line);color:var(--ink);background:#fff;}
  .btn-ghost:hover{border-color:var(--ink);transform:translateY(-2px);box-shadow:0 8px 18px rgba(16,27,45,0.10);}
  .btn svg{width:15px;height:15px;flex-shrink:0;}
  .btn-dark{background:var(--ink);color:#fff;box-shadow:0 1px 0 rgba(255,255,255,0.1) inset, 0 10px 24px rgba(16,27,45,0.28);}
  .btn-dark:hover{background:#1B2C48;transform:translateY(-2px);}
  footer{padding:44px 0 36px;background:var(--paper-deep);}
  .footer-shell{display:grid;grid-template-columns:minmax(220px,0.95fr) minmax(0,1.55fr);gap:36px 56px;align-items:start;margin-bottom:28px;}
  .footer-identity{max-width:46ch;}
  .footer-brand{margin-bottom:14px;}
  .footer-brand .brand-mark{height:46px;}
  .footer-brand .brand-architects{font-size:14px;}
  .footer-about{margin:0;font-size:13.5px;line-height:1.55;color:var(--on-dark-soft);}
  .footer-top{display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between;margin-bottom:24px;}
  .footer-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px 32px;width:100%;margin-bottom:0;}
  @media (max-width:900px){.footer-shell{grid-template-columns:1fr;gap:28px;}.footer-identity{max-width:48ch;}}
  @media (max-width:720px){.footer-grid{grid-template-columns:1fr 1fr;}}
  @media (max-width:480px){.footer-grid{grid-template-columns:1fr;}}
  .footer-col{display:flex;flex-direction:column;gap:8px;}
  .footer-col-title{font-family:var(--mono);font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--signal);margin-bottom:6px;}
  .footer-col a{font-size:13px;color:var(--on-dark-soft);}
  .footer-col a:hover{color:#fff;}
  .footer-links{display:flex;flex-wrap:wrap;gap:22px;font-size:12.5px;color:var(--on-dark-soft);}
  .footer-links a:hover{color:#fff;}
  .footer-bottom{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;font-size:11px;color:var(--on-dark-faint);font-family:var(--mono);border-top:1px solid rgba(255,255,255,0.08);padding-top:20px;}
  .internal-link{font-family:var(--mono);font-size:10.5px;color:var(--on-dark-faint);border:1px solid rgba(255,255,255,0.16);border-radius:6px;padding:6px 11px;transition:color .15s ease, border-color .15s ease;}
  .internal-link:hover{color:#fff;border-color:rgba(255,255,255,0.35);}