:root{
    --ink:#080b14;
    --surface:#11162a;
    --surface-2:#171d38;
    --line: rgba(241,243,250,0.09);
    --text:#f1f3fa;
    --muted:#8890a8;
    --violet:#2ea8ff;
    --teal:#35e7c7;
    --amber:#ffb74d;
    --display: 'Space Grotesk', sans-serif;
    --body: 'IBM Plex Sans', sans-serif;
    --mono: 'IBM Plex Mono', monospace;
  }
  *{box-sizing:border-box; margin:0; padding:0;}
  html{scroll-behavior:smooth;}
  body{
    background:var(--ink);
    color:var(--text);
    font-family:var(--body);
    font-weight:300;
    line-height:1.6;
    overflow-x:hidden;
  }
  a{color:inherit; text-decoration:none;}
  img,svg{display:block; max-width:100%;}

  /* Hard reset — Astra's global typography color settings can otherwise
     override our headings since they load their own inline customizer CSS. */
  h1, h2, h3, h4, h5, h6 { color: var(--text) !important; }
  p { color: inherit; }

  .wrap{max-width:1180px; margin:0 auto; padding:0 32px;}

  /* subtle beam texture background */
  body::before{
    content:"";
    position:fixed; inset:0;
    background:
      radial-gradient(1200px 600px at 15% -10%, rgba(123,97,255,0.10), transparent 60%),
      radial-gradient(1000px 500px at 100% 10%, rgba(53,231,199,0.07), transparent 55%);
    pointer-events:none;
    z-index:0;
  }

  /* ---------- HEADER ---------- */
  header{
    position:sticky; top:0; z-index:50;
    backdrop-filter: blur(14px);
    background: rgba(8,11,20,0.72);
    border-bottom:1px solid var(--line);
  }
  .nav{
    display:flex; align-items:center; justify-content:space-between;
    padding:8px 32px;
    max-width:1180px; margin:0 auto;
  }
  .logo{
    display:flex; align-items:center;
  }
  .logo-mark-img{
    height:96px; width:auto;
    filter: drop-shadow(0 0 14px rgba(46,168,255,0.4));
  }
  .nav-links{display:flex; gap:36px; font-size:0.92rem; color:var(--muted);}
  .nav-links a:hover{color:var(--text);}
  .nav-cta{
    font-family:var(--mono); font-size:0.82rem;
    border:1px solid rgba(255,183,77,0.4);
    color:var(--amber);
    padding:9px 18px; border-radius:2px;
    transition:all .25s ease;
  }
  .nav-cta:hover{background:rgba(255,183,77,0.1); border-color:var(--amber);}
  .nav-toggle{display:none;}

  /* ---------- HERO ---------- */
  .hero{
    position:relative; z-index:1;
    padding:96px 32px 60px;
    max-width:1180px; margin:0 auto;
    display:grid; grid-template-columns: 1.1fr 0.9fr; gap:56px; align-items:center;
  }
  .eyebrow{
    font-family:var(--mono); font-size:0.8rem; letter-spacing:0.08em;
    color:var(--teal);
    display:flex; align-items:center; gap:10px;
    margin-bottom:22px;
    text-transform:uppercase;
  }
  .eyebrow::before{
    content:""; width:24px; height:1px; background:var(--teal); opacity:0.6;
  }
  .hero h1{
    font-family:var(--display); font-weight:600;
    font-size:clamp(2.4rem, 4.2vw, 3.6rem);
    line-height:1.08;
    letter-spacing:-0.01em;
    margin-bottom:22px;
  }
  .hero h1 .accent{
    background:linear-gradient(90deg, var(--violet), var(--teal));
    -webkit-background-clip:text; background-clip:text; color:transparent !important;
  }
  .hero p.lead{
    color:var(--muted); font-size:1.05rem; max-width:46ch; margin-bottom:34px;
  }
  .hero-actions{display:flex; gap:14px; flex-wrap:wrap;}
  .btn{
    font-family:var(--mono); font-size:0.85rem;
    padding:14px 26px; border-radius:2px;
    display:inline-flex; align-items:center; gap:8px;
    transition:all .25s ease;
  }
  .btn-primary{
    background:var(--amber); color:#1a1204; font-weight:500;
  }
  .btn-primary:hover{ transform:translateY(-1px); box-shadow:0 8px 24px rgba(255,183,77,0.25);}
  .btn-ghost{
    border:1px solid var(--line); color:var(--text);
  }
  .btn-ghost:hover{border-color:rgba(241,243,250,0.3);}

  /* ---- polarizer signature ---- */
  .polarizer-stage{
    position:relative;
    aspect-ratio: 1/1;
    display:flex; align-items:center; justify-content:center;
  }
  .beam-label{
    position:absolute; top:-6px; left:50%; transform:translateX(-50%);
    font-family:var(--mono); font-size:0.72rem; color:var(--muted);
    text-align:center; letter-spacing:0.05em;
  }
  .stage-inner{
    position:relative; width:100%; height:100%;
    display:flex; align-items:center; justify-content:center;
  }
  .beam-track{
    position:absolute; left:0; right:0; top:50%; height:2px;
    transform:translateY(-50%);
    background:linear-gradient(90deg, transparent, var(--violet) 15%, var(--beam-color, var(--teal)) 50%, var(--teal) 85%, transparent);
    opacity:var(--beam-opacity, 0.9);
    filter: drop-shadow(0 0 6px var(--beam-color, var(--teal)));
    transition: opacity .15s ease;
  }
  .filter-disc{
    position:relative; z-index:2;
    width:150px; height:150px; border-radius:50%;
    border:1.5px solid rgba(241,243,250,0.25);
    background: rgba(23,29,56,0.55);
    backdrop-filter: blur(2px);
    display:flex; align-items:center; justify-content:center;
    box-shadow: inset 0 0 40px rgba(123,97,255,0.12);
  }
  .filter-disc.right{ box-shadow: inset 0 0 40px rgba(53,231,199,0.12); }
  .filter-disc .lines{
    position:absolute; inset:0; border-radius:50%; overflow:hidden;
  }
  .filter-disc .lines::before{
    content:""; position:absolute; inset:-20%;
    background: repeating-linear-gradient(0deg, rgba(241,243,250,0.16) 0px, rgba(241,243,250,0.16) 1px, transparent 1px, transparent 9px);
  }
  .filter-left{ margin-right:-4px; }
  .filter-right{
    margin-left:-4px;
    cursor: grab;
    transition: transform .05s linear;
    touch-action:none;
  }
  .filter-right:active{cursor:grabbing;}
  .filter-right .lines{ transform: rotate(var(--r, 45deg)); }
  .angle-readout{
    position:absolute; bottom:-34px; left:50%; transform:translateX(-50%);
    font-family:var(--mono); font-size:0.76rem; color:var(--muted);
    white-space:nowrap;
  }
  .drag-hint{
    position:absolute; bottom:-58px; left:50%; transform:translateX(-50%);
    font-family:var(--mono); font-size:0.68rem; color:var(--muted); opacity:0.7;
    white-space:nowrap;
  }

  /* ---------- SECTIONS ---------- */
  section{ position:relative; z-index:1; padding:90px 32px; }
  .section-head{ max-width:640px; margin-bottom:56px; }
  .section-head .eyebrow{ color:var(--violet); }
  .section-head .eyebrow::before{ background:var(--violet); }
  .section-head h2{
    font-family:var(--display); font-weight:600;
    font-size:clamp(1.7rem, 2.6vw, 2.3rem);
    line-height:1.2;
  }
  .section-head p{ color:var(--muted); margin-top:14px; font-size:1rem; }

  /* industries grid */
  .industry-grid{
    display:grid; grid-template-columns:repeat(4, 1fr); gap:1px;
    background:var(--line);
    border:1px solid var(--line);
  }
  .industry-cell{
    background:var(--ink); padding:28px 22px;
    transition: background .2s ease;
  }
  .industry-cell:hover{ background:var(--surface); }
  .industry-cell .idx{ font-family:var(--mono); font-size:0.72rem; color:var(--muted); display:block; margin-bottom:14px;}
  .industry-cell .name{ font-family:var(--body); font-weight:500; font-size:0.98rem; }

  /* why institutions / benefits split */
  .split{
    display:grid; grid-template-columns:1fr 1fr; gap:64px;
  }
  .check-list{ list-style:none; }
  .check-list li{
    display:flex; gap:14px; padding:16px 0;
    border-top:1px solid var(--line);
    font-size:0.98rem; color:var(--text);
  }
  .check-list li:last-child{ border-bottom:1px solid var(--line); }
  .check-list .mark{
    font-family:var(--mono); color:var(--teal); flex-shrink:0;
  }
  .benefits-list li .mark{ color:var(--amber); }

  /* kit cards */
  .kits-grid{
    display:grid; grid-template-columns:1fr 1fr; gap:24px;
  }
  .kit-card{
    background:var(--surface);
    border:1px solid var(--line);
    padding:36px;
    position:relative;
    overflow:hidden;
  }
  .kit-card::before{
    content:"";
    position:absolute; top:0; left:0; right:0; height:2px;
    background:linear-gradient(90deg, var(--violet), var(--teal));
    opacity:0.7;
  }
  .kit-tag{
    font-family:var(--mono); font-size:0.72rem; color:var(--muted);
    letter-spacing:0.06em; text-transform:uppercase;
    display:flex; justify-content:space-between; margin-bottom:18px;
  }
  .kit-card h3{
    font-family:var(--display); font-weight:600; font-size:1.35rem;
    margin-bottom:10px;
  }
  .kit-card .kit-sub{ color:var(--muted); font-size:0.94rem; margin-bottom:22px; }
  .kit-card h4{
    font-family:var(--mono); font-size:0.74rem; letter-spacing:0.06em;
    color:var(--teal); text-transform:uppercase; margin-bottom:12px;
  }
  .kit-card ul{ list-style:none; margin-bottom:22px; }
  .kit-card ul li{
    font-size:0.92rem; color:var(--text); padding:6px 0 6px 18px;
    position:relative; color:rgba(241,243,250,0.85);
  }
  .kit-card ul li::before{
    content:"—"; position:absolute; left:0; color:var(--muted);
  }
  .kit-card .ideal-for{
    display:flex; gap:8px; flex-wrap:wrap; margin-top:18px;
  }
  .pill{
    font-family:var(--mono); font-size:0.7rem; color:var(--muted);
    border:1px solid var(--line); padding:5px 11px; border-radius:20px;
  }

  /* CTA */
  .cta{
    text-align:center; padding:110px 32px;
    background:
      radial-gradient(600px 300px at 50% 0%, rgba(123,97,255,0.14), transparent 70%);
    border-top:1px solid var(--line);
  }
  .cta h2{
    font-family:var(--display); font-weight:600;
    font-size:clamp(1.8rem, 3.2vw, 2.6rem);
    max-width:680px; margin:0 auto 18px;
  }
  .cta p{ color:var(--muted); max-width:520px; margin:0 auto 34px; }
  .cta .hero-actions{ justify-content:center; }

  footer{
    border-top:1px solid var(--line);
    padding:40px 32px; 
    display:flex; justify-content:space-between; align-items:center;
    max-width:1180px; margin:0 auto;
    color:var(--muted); font-family:var(--mono); font-size:0.8rem;
  }
  .footer-brand{ display:flex; align-items:center; gap:10px; }
  .footer-brand .logo-mark-img{ height:18px; opacity:0.85; }

  @media (max-width: 860px){
    .nav{ padding:10px 20px; flex-wrap:nowrap; position:relative; }
    .logo-mark-img{ height:44px; }
    .nav-cta{ font-size:0.72rem; padding:8px 12px; white-space:nowrap; }

    .nav-links{
      display:none;
      position:absolute;
      top:100%; left:0; right:0;
      flex-direction:column;
      gap:0;
      background: rgba(8,11,20,0.98);
      border-bottom:1px solid var(--line);
      padding:8px 20px 18px;
    }
    .nav-links.is-open{ display:flex; }
    .nav-links a{
      padding:14px 0;
      border-top:1px solid var(--line);
      color:var(--text);
      font-family:var(--mono); font-size:0.85rem;
    }

    .nav-toggle{
      display:flex; flex-direction:column; justify-content:center; gap:5px;
      width:32px; height:28px;
      background:none; border:none; cursor:pointer;
      padding:0; margin-left:14px; flex-shrink:0;
    }
    .nav-toggle span{
      display:block; height:1.5px; width:100%;
      background:var(--text);
      transition: transform .2s ease, opacity .2s ease;
    }
    .nav-toggle.is-open span:nth-child(1){ transform:translateY(6.5px) rotate(45deg); }
    .nav-toggle.is-open span:nth-child(2){ opacity:0; }
    .nav-toggle.is-open span:nth-child(3){ transform:translateY(-6.5px) rotate(-45deg); }

    .hero{ grid-template-columns:1fr; padding-top:56px; }
    .polarizer-stage{ max-width:280px; margin:0 auto; }
    .split{ grid-template-columns:1fr; gap:40px; }
    .industry-grid{ grid-template-columns:repeat(2,1fr); }
    .kits-grid{ grid-template-columns:1fr; }
    footer{ flex-direction:column; gap:10px; text-align:center; }
  }

  @media (prefers-reduced-motion: reduce){
    html{ scroll-behavior:auto; }
    .filter-right{ transition:none; }
  }

/* ---------- ADDED: compact kit cards (homepage catalog teaser) ---------- */
.kits-compact-grid{
  display:grid; grid-template-columns:repeat(3, 1fr); gap:20px;
}
.kit-compact-card{
  background:var(--surface);
  border:1px solid var(--line);
  padding:26px;
  position:relative;
  transition: border-color .2s ease, transform .2s ease;
}
.kit-compact-card:hover{ border-color:rgba(53,231,199,0.35); transform:translateY(-2px); }
.kit-compact-card::before{
  content:"";
  position:absolute; top:0; left:0; right:0; height:2px;
  background:linear-gradient(90deg, var(--violet), var(--teal));
  opacity:0.6;
}
.kit-compact-card .kit-tag{ margin-bottom:14px; }
.kit-compact-card h3{
  font-family:var(--display); font-weight:600; font-size:1.05rem;
  margin-bottom:8px; line-height:1.3;
}
.kit-compact-card p{ color:var(--muted); font-size:0.88rem; margin-bottom:16px; }
.kit-compact-card .kit-link{
  font-family:var(--mono); font-size:0.76rem; color:var(--teal);
  display:inline-flex; align-items:center; gap:6px;
}
.kit-compact-card .kit-link:hover{ color:var(--text); }
.view-all-row{
  display:flex; justify-content:center; margin-top:36px;
}

/* ---------- ADDED: flagship system teaser ---------- */
.flagship{
  border:1px solid var(--line);
  background: linear-gradient(135deg, rgba(46,168,255,0.07), rgba(53,231,199,0.05));
  padding:56px;
  display:grid; grid-template-columns: 1fr auto; gap:40px; align-items:center;
}
.flagship .kit-tag{ margin-bottom:16px; }
.flagship h3{
  font-family:var(--display); font-weight:600;
  font-size:clamp(1.5rem, 2.4vw, 2rem);
  margin-bottom:14px; max-width:34ch;
}
.flagship p{ color:var(--muted); max-width:52ch; margin-bottom:22px; }
.flagship .feature-tags{ display:flex; gap:8px; flex-wrap:wrap; }

/* ---------- ADDED: who-can-use / closing sections ---------- */
.audience-grid{
  display:grid; grid-template-columns:repeat(4,1fr); gap:1px;
  background:var(--line); border:1px solid var(--line);
}
.audience-cell{
  background:var(--ink); padding:22px 18px;
  font-size:0.92rem; font-family:var(--body); font-weight:400;
}
.audience-cell:hover{ background:var(--surface); }

/* ---------- ADDED: page hero (secondary pages, shorter than homepage hero) ---------- */
.page-hero{
  padding:80px 32px 50px; max-width:900px; margin:0 auto; text-align:left;
}
.page-hero h1{
  font-family:var(--display); font-weight:600;
  font-size:clamp(2rem, 3.6vw, 3rem); line-height:1.1; margin-bottom:18px;
}
.page-hero p.lead{ color:var(--muted); font-size:1.05rem; max-width:60ch; }

/* breadcrumb-ish back link */
.back-link{
  font-family:var(--mono); font-size:0.8rem; color:var(--muted);
  display:inline-flex; align-items:center; gap:6px; margin-bottom:20px;
}
.back-link:hover{ color:var(--teal); }

/* feature card grid used on QKD page */
.feature-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.feature-card{
  background:var(--surface); border:1px solid var(--line); padding:28px;
}
.feature-card h4{
  font-family:var(--display); font-weight:600; font-size:1.05rem; margin-bottom:10px;
  color:var(--text);
}
.feature-card p{ color:var(--muted); font-size:0.9rem; }

.two-col-lists{ display:grid; grid-template-columns:1fr 1fr; gap:48px; }

@media (max-width: 860px){
  .kits-compact-grid{ grid-template-columns:1fr; }
  .flagship{ grid-template-columns:1fr; padding:36px; }
  .audience-grid{ grid-template-columns:repeat(2,1fr); }
  .feature-grid{ grid-template-columns:1fr; }
  .two-col-lists{ grid-template-columns:1fr; gap:28px; }
}

/* ---------- ADDED: contact form ---------- */
.contact-wrap{
  display:grid; grid-template-columns: 0.85fr 1.15fr; gap:64px; align-items:start;
  text-align:left;
}
.contact-intro{ padding-top:6px; }
.contact-intro .eyebrow{ justify-content:flex-start; }
.contact-intro h2{
  font-family:var(--display); font-weight:600;
  font-size:clamp(1.7rem, 2.6vw, 2.3rem); line-height:1.2; margin-bottom:16px;
}
.contact-intro p{ color:var(--muted); font-size:0.98rem; max-width:44ch; margin-bottom:28px; }
.contact-meta{ display:flex; flex-direction:column; gap:10px; }
.contact-meta div{
  font-family:var(--mono); font-size:0.82rem; color:var(--text);
  display:flex; align-items:center; gap:10px;
}
.contact-meta .mark{ color:var(--teal); }

.contact-form{
  background:var(--surface);
  border:1px solid var(--line);
  padding:36px;
  display:grid; grid-template-columns:1fr 1fr; gap:20px;
  position:relative;
}
.contact-form::before{
  content:"";
  position:absolute; top:0; left:0; right:0; height:2px;
  background:linear-gradient(90deg, var(--violet), var(--teal));
  opacity:0.7;
}
.field{ display:flex; flex-direction:column; gap:8px; }
.field-full{ grid-column: 1 / -1; }
.field label{
  font-family:var(--mono); font-size:0.74rem; letter-spacing:0.04em;
  text-transform:uppercase; color:var(--muted);
}
.field input, .field select, .field textarea{
  background:var(--ink);
  border:1px solid var(--line);
  color:var(--text);
  font-family:var(--body); font-size:0.94rem;
  padding:11px 13px;
  border-radius:2px;
  transition:border-color .2s ease;
  width:100%;
}
.field select{ appearance:none; cursor:pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238890a8' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
  background-repeat:no-repeat; background-position: right 13px center;
  padding-right:34px;
}
.field textarea{ resize:vertical; font-family:var(--body); }
.field input:focus, .field select:focus, .field textarea:focus{
  outline:none; border-color:var(--teal);
  box-shadow:0 0 0 3px rgba(53,231,199,0.12);
}
.field input:invalid:not(:placeholder-shown){ border-color: rgba(255,120,120,0.5); }

#cf-submit{ border:none; cursor:pointer; font-size:0.85rem; }
#cf-submit:disabled{ opacity:0.6; cursor:not-allowed; }
.form-status{
  font-family:var(--mono); font-size:0.82rem;
  margin-left:16px;
}
.form-status.success{ color:var(--teal); }
.form-status.error{ color:#ff9e8a; }

@media (max-width: 860px){
  .contact-wrap{ grid-template-columns:1fr; gap:36px; }
  .contact-form{ grid-template-columns:1fr; padding:26px; }
}