:root{
    --navy:#0B1F2E;
    --navy-2:#122C40;
    --navy-3:#16394F;
    --cyan:#1DBBE8;
    --cyan-soft:#BEEBF9;
    --amber:#FFB020;
    --off:#F4F7F9;
    --white:#FFFFFF;
    --ink:#12212E;
    --muted:#5C7183;
    --line:#E3EAEE;
    --radius:22px;
    --maxw:1180px;
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:'Inter',Arial,sans-serif;
    color:var(--ink);
    background:var(--white);
    line-height:1.55;
  }
  h1,h2,h3,h4{
    font-family:'Space Grotesk',Arial,sans-serif;
    font-weight:700;
    letter-spacing:-0.02em;
    margin:0;
    color:var(--navy);
  }
  .mono{
    font-family:'IBM Plex Mono',monospace;
    letter-spacing:0.02em;
  }
  a{color:inherit;}
  .wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px;}
  img{max-width:100%;display:block;}

  /* ---------- NAV ---------- */
  header.site{
    position:sticky;top:0;z-index:50;
    background:rgba(11,31,46,0.92);
    backdrop-filter:blur(8px);
    border-bottom:1px solid rgba(255,255,255,0.08);
  }
  nav.wrap{
    display:flex;align-items:center;justify-content:space-between;
    height:76px;
  }
  .brand{display:flex;align-items:center;gap:12px;text-decoration:none;}
  .brand svg{width:38px;height:38px;flex:none;}
  .brand span{
    font-family:'Space Grotesk',Arial,sans-serif;
    font-weight:700;font-size:22px;letter-spacing:-0.03em;color:var(--white);
  }
  .navlinks{display:flex;gap:32px;align-items:center;}
  .navlinks a{
    color:rgba(255,255,255,0.78);text-decoration:none;font-size:15px;font-weight:500;
    transition:color .15s;
  }
  .navlinks a:hover{color:var(--cyan);}
  .btn{
    display:inline-flex;align-items:center;gap:8px;
    background:var(--cyan);color:var(--navy);
    font-weight:700;font-size:15px;
    padding:12px 22px;border-radius:12px;text-decoration:none;
    border:none;cursor:pointer;
    transition:transform .15s, box-shadow .15s;
  }
  .btn:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(29,187,232,0.35);}
  .btn.ghost{
    background:transparent;color:var(--white);
    border:1.5px solid rgba(255,255,255,0.35);
  }
  .btn.ghost:hover{border-color:var(--cyan);color:var(--cyan);box-shadow:none;}
  .navcta{display:flex;gap:14px;align-items:center;}
  .burger{display:none;background:none;border:none;color:white;font-size:26px;cursor:pointer;}

  /* ---------- HERO ---------- */
  .hero{
    background:var(--navy);
    position:relative;overflow:hidden;
    padding:96px 0 120px;
  }
  .hero-decor{
    position:absolute;right:-120px;top:-60px;width:640px;height:640px;
    opacity:0.9;pointer-events:none;
  }
  .hero .wrap{position:relative;z-index:2;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:10px;
    font-family:'IBM Plex Mono',monospace;font-size:13px;font-weight:600;
    color:var(--cyan);letter-spacing:0.06em;text-transform:uppercase;
    background:rgba(29,187,232,0.1);border:1px solid rgba(29,187,232,0.35);
    padding:7px 14px;border-radius:99px;margin-bottom:26px;
  }
  .hero h1{
    color:var(--white);font-size:56px;line-height:1.06;max-width:760px;
  }
  .hero h1 em{color:var(--cyan);font-style:normal;}
  .hero p.lead{
    color:rgba(255,255,255,0.72);font-size:19px;max-width:600px;margin:26px 0 38px;
  }
  .hero-ctas{display:flex;gap:16px;flex-wrap:wrap;}
  .hero-stats{
    display:flex;gap:48px;margin-top:72px;flex-wrap:wrap;
  }
  .hero-stats div{border-left:2px solid rgba(29,187,232,0.4);padding-left:16px;}
  .hero-stats .num{font-family:'Space Grotesk';font-size:30px;font-weight:700;color:var(--white);}
  .hero-stats .lbl{font-size:13px;color:rgba(255,255,255,0.55);margin-top:2px;}

  /* ---------- SECTION GENERIC ---------- */
  section{padding:96px 0;}
  section.alt{background:var(--off);}
  .section-head{max-width:640px;margin-bottom:56px;}
  .section-head .eyebrow{background:rgba(11,31,46,0.06);color:var(--navy-3);border-color:var(--line);}
  .section-head h2{font-size:38px;margin-bottom:16px;}
  .section-head p{color:var(--muted);font-size:17px;}

  /* ---------- PROBLEM ---------- */
  .problem-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
  .problem-card{
    background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
    padding:26px 22px;
  }
  .problem-card .x{
    width:40px;height:40px;border-radius:12px;
    background:linear-gradient(135deg,var(--cyan-soft),#EAF7FC);
    color:var(--cyan);
    display:flex;align-items:center;justify-content:center;
    font-weight:700;margin-bottom:16px;font-family:'Space Grotesk';
    font-size:18px;line-height:1;
    border:1px solid rgba(29,187,232,0.16);
    box-shadow:0 8px 18px rgba(29,187,232,0.14);
  }
  .problem-card h4{font-size:16px;margin-bottom:6px;}
  .problem-card p{font-size:14px;color:var(--muted);margin:0;}
  .problem-arrow{
    text-align:center;margin:44px 0;color:var(--muted);font-family:'IBM Plex Mono';font-size:14px;
  }

  /* ---------- WHY GRID ---------- */
  .why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
  .why-card{padding:0;}
  .why-card .ic{
    width:52px;height:52px;border-radius:14px;background:var(--navy);
    display:flex;align-items:center;justify-content:center;margin-bottom:20px;
  }
  .why-card .ic svg{width:26px;height:26px;}
  .why-card h4{font-size:18px;margin-bottom:8px;}
  .why-card p{font-size:14.5px;color:var(--muted);margin:0;}

  /* ---------- MODULES ---------- */
  .cat-block{margin-bottom:64px;}
  .cat-block:last-child{margin-bottom:0;}
  .cat-title{
    display:flex;align-items:baseline;gap:14px;margin-bottom:26px;
    padding-bottom:14px;border-bottom:2px solid var(--navy);
  }
  .cat-title h3{font-size:22px;}
  .cat-title span{font-family:'IBM Plex Mono';font-size:13px;color:var(--muted);}
  .mod-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
  .mod-card{
    background:var(--white);border:1px solid var(--line);border-radius:18px;
    padding:24px;transition:border-color .15s, transform .15s;
  }
  .mod-card:hover{border-color:var(--cyan);transform:translateY(-3px);}
  .mod-tag{
    font-family:'IBM Plex Mono';font-size:12px;color:var(--cyan-soft);
    background:var(--navy);display:inline-block;padding:4px 10px;border-radius:6px;
    margin-bottom:14px;color:var(--cyan);
  }
  .mod-card h4{font-size:17px;margin-bottom:8px;}
  .mod-card p{font-size:14px;color:var(--muted);margin:0;}

  /* ---------- REFERENCE ---------- */
  .ref-section{background:var(--navy);color:var(--white);}
  .ref-grid{display:grid;grid-template-columns:0.9fr 1.1fr;gap:56px;align-items:center;}
  .ref-shot{
    border-radius:16px;overflow:hidden;border:1px solid rgba(255,255,255,0.12);
    box-shadow:0 30px 60px rgba(0,0,0,0.4);
  }
  .ref-text .eyebrow{background:rgba(29,187,232,0.12);}
  .ref-text h2{color:var(--white);font-size:34px;margin-bottom:18px;}
  .ref-text p{color:rgba(255,255,255,0.72);font-size:16px;margin-bottom:16px;}
  .ref-list{list-style:none;padding:0;margin:26px 0 0;display:grid;gap:12px;}
  .ref-list li{display:flex;gap:12px;font-size:15px;color:rgba(255,255,255,0.85);}
  .ref-list li svg{flex:none;width:20px;height:20px;color:var(--cyan);}

  /* ---------- AUDIENCE ---------- */
  .aud-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
  .aud-card{
    border-radius:var(--radius);padding:28px 22px;background:var(--white);
    border:1px solid var(--line);
  }
  .aud-card.primary{background:var(--navy);border-color:var(--navy);}
  .aud-card.primary h4, .aud-card.primary p{color:var(--white);}
  .aud-card.primary p{color:rgba(255,255,255,0.7);}
  .aud-card h4{font-size:17px;margin-bottom:10px;}
  .aud-card p{font-size:14px;color:var(--muted);margin:0;}
  .aud-badge{
    display:inline-block;font-family:'IBM Plex Mono';font-size:11px;
    background:var(--cyan);color:var(--navy);padding:3px 9px;border-radius:99px;
    margin-bottom:14px;font-weight:600;
  }

  /* ---------- ABOUT / FOUNDER ---------- */
  .about-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
  .about-grid p{color:var(--muted);font-size:16px;margin-bottom:14px;}
  .stack-decor{width:100%;max-width:340px;}

  /* ---------- CTA / FOOTER ---------- */
  .cta-band{
    background:linear-gradient(135deg, var(--navy) 0%, var(--navy-3) 100%);
    border-radius:28px;padding:64px 56px;color:var(--white);
    display:flex;justify-content:space-between;align-items:center;gap:32px;flex-wrap:wrap;
  }
  .cta-band h2{color:var(--white);font-size:32px;max-width:480px;}
  .cta-band p{color:rgba(255,255,255,0.7);margin-top:10px;max-width:480px;}

  footer{background:var(--navy);color:rgba(255,255,255,0.6);padding:56px 0 32px;margin-top:40px;}
  .foot-grid{display:flex;justify-content:space-between;flex-wrap:wrap;gap:32px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,0.1);}
  .foot-brand .brand span{color:var(--white);}
  .foot-links{display:flex;gap:56px;flex-wrap:wrap;}
  .foot-col h5{color:var(--white);font-size:13px;text-transform:uppercase;letter-spacing:0.06em;margin-bottom:14px;font-family:'IBM Plex Mono';}
  .foot-col a{display:block;color:rgba(255,255,255,0.6);text-decoration:none;font-size:14.5px;margin-bottom:10px;}
  .foot-col a:hover{color:var(--cyan);}
  .foot-bottom{padding-top:24px;font-size:13px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;}

  @media (max-width: 980px){
    .hero h1{font-size:40px;}
    .problem-grid, .why-grid, .aud-grid{grid-template-columns:repeat(2,1fr);}
    .mod-grid{grid-template-columns:1fr;}
    .ref-grid, .about-grid{grid-template-columns:1fr;}
    .navlinks, .navcta .btn.ghost{display:none;}
    .burger{display:block;}
    .cta-band{flex-direction:column;align-items:flex-start;}
  }
  @media (max-width:600px){
    .problem-grid, .why-grid, .aud-grid{grid-template-columns:1fr;}
    .hero{padding:64px 0 80px;}
    .hero h1{font-size:32px;}
    .cta-band{padding:40px 28px;}
  }