:root{
    --paper:#ffffff;
    --mist:#f6f6f8;
    --line:#e6e6ea;
    --ink:#0a0a0c;
    --ink-soft:#5c5c66;
    --ink-faint:#8a8a93;
    --accent:#2b5cff;
    --accent-dim:#e8edff;
    --signal:#5ee6c8;
    --radius-lg:28px;
    --radius-md:18px;
    --radius-sm:12px;
    --maxw:1180px;
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--paper);
    color:var(--ink);
    font-family:'Inter', sans-serif;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  h1,h2,h3,h4,.display{
    font-family:'Space Grotesk', sans-serif;
    letter-spacing:-0.02em;
    margin:0;
  }
  .mono{ font-family:'IBM Plex Mono', monospace; letter-spacing:.02em; }
  a{ color:inherit; text-decoration:none; }
  img{ max-width:100%; display:block; }
  ::selection{ background:var(--ink); color:#fff; }
  .wrap{ max-width:var(--maxw); margin:0 auto; padding:0 28px; }
  @media (max-width:640px){ .wrap{ padding:0 20px; } }

  section{ position:relative; padding:100px 0; }
  @media (max-width:640px){ section{ padding:64px 0; } }

  .eyebrow{
    display:inline-flex; align-items:center; gap:9px;
    font-family:'IBM Plex Mono', monospace;
    font-size:12.5px; font-weight:500;
    text-transform:uppercase; letter-spacing:.08em;
    color:var(--ink-soft);
    margin-bottom:20px;
  }
  .eyebrow::before{
    content:''; width:16px; height:1px; background:var(--accent);
  }
  .section-head{ max-width:660px; margin-bottom:52px; }
  .section-head h2,
  .section-head h1{
    font-size:clamp(26px,3.6vw,40px);
    line-height:1.12;
    font-weight:700;
  }
  .section-head p{
    margin-top:16px; font-size:16px; line-height:1.65; color:var(--ink-soft);
  }
  .swipe-hint{ display:none; }

  /* ---------- NAV ---------- */
  header{
    position:sticky; top:0; z-index:80;
    background:rgba(255,255,255,.82);
    backdrop-filter:blur(16px) saturate(160%);
    border-bottom:1px solid var(--line);
  }
  nav{
    display:flex; align-items:center; justify-content:space-between;
    padding:16px 28px;
    max-width:var(--maxw); margin:0 auto;
  }
  .logo{ font-family:'Space Grotesk',sans-serif; font-weight:700; font-size:16.5px; display:flex; align-items:center; gap:9px; }
  .logo-mark{ width:9px; height:9px; background:var(--accent); border-radius:2px; transform:rotate(45deg); }
  .nav-links{ display:flex; gap:30px; font-size:14px; font-weight:500; color:var(--ink-soft); }
  .nav-links a:hover{ color:var(--ink); }
  .nav-cta{
    padding:10px 18px; border-radius:100px;
    background:var(--ink); color:#fff;
    font-size:13.5px; font-weight:600;
    white-space:nowrap;
  }
  .nav-right{ display:flex; align-items:center; gap:18px; }
  .nav-social{ display:flex; align-items:center; gap:12px; }
  .nav-social a{
    width:30px; height:30px; border-radius:50%;
    border:1px solid var(--line);
    display:flex; align-items:center; justify-content:center;
    font-family:'Space Grotesk',sans-serif; font-size:12px; font-weight:700;
    color:var(--ink-soft);
    transition:color .18s ease, border-color .18s ease;
  }
  .nav-social a:hover{ color:var(--ink); border-color:var(--ink); }
  @media (max-width:880px){ .nav-links{ display:none; } }
  @media (max-width:560px){ .nav-social{ display:none; } }

  /* ---------- HERO ---------- */
  .hero{ padding:88px 0 70px; }
  .hero-eyebrow{
    display:inline-flex; align-items:center; gap:8px;
    padding:7px 14px; border-radius:100px;
    background:var(--mist); border:1px solid var(--line);
    font-size:12.5px; font-weight:600; color:var(--ink-soft);
    margin-bottom:26px;
  }
  .hero-eyebrow .dot{ width:6px; height:6px; border-radius:50%; background:var(--signal); }
  .hero h1{
    font-size:clamp(34px,5.6vw,64px);
    font-weight:700;
    line-height:1.08;
    max-width:900px;
  }
  .hero h1 em{
    font-style:normal;
    color:var(--accent);
  }
  .hero p.sub{
    margin-top:24px; font-size:17.5px; line-height:1.65;
    color:var(--ink-soft); max-width:600px;
  }
  .hero-ctas{ margin-top:36px; display:flex; align-items:center; gap:22px; flex-wrap:wrap; }
  .btn{
    padding:15px 26px; border-radius:100px;
    font-weight:600; font-size:14.5px;
    display:inline-flex; align-items:center; gap:9px;
  }
  .btn-primary{ background:var(--ink); color:#fff; transition:transform .18s ease, background .18s ease; }
  .btn-primary:hover{ transform:translateY(-2px); background:var(--accent); }
  .btn-secondary{
    color:var(--ink-soft); font-weight:600; font-size:14.5px;
    border-bottom:1px solid var(--line);
    padding-bottom:2px;
  }
  .btn-secondary:hover{ color:var(--ink); border-color:var(--ink); }

  .proof-strip{
    margin-top:64px;
    display:grid; grid-template-columns:repeat(3,1fr);
    border-top:1px solid var(--line); border-bottom:1px solid var(--line);
    padding:26px 0;
  }
  @media (max-width:640px){ .proof-strip{ grid-template-columns:1fr; gap:20px 0; } }
  .proof-item{ text-align:left; padding:0 24px; border-left:1px solid var(--line); }
  .proof-item:first-child{ border-left:none; padding-left:0; }
  @media (max-width:640px){ .proof-item{ border-left:none; padding-left:0; border-top:1px solid var(--line); padding-top:16px; } .proof-item:first-child{ border-top:none; padding-top:0; } }
  .proof-num{ font-family:'Space Grotesk',sans-serif; font-weight:700; font-size:26px; }
  .proof-label{ margin-top:6px; font-size:12.5px; color:var(--ink-faint); line-height:1.4; }

  /* ---------- DARK AUTHORITY BLOCK ---------- */
  .authority{
    background:
      radial-gradient(circle at 18% 12%, rgba(43,92,255,.22), transparent 42%),
      radial-gradient(circle at 82% 88%, rgba(94,230,200,.14), transparent 45%),
      #08080a;
    color:#fff;
    padding:110px 0;
    position:relative;
    overflow:hidden;
  }
  .authority::before{
    content:'';
    position:absolute; inset:0;
    background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.05'/%3E%3C/svg%3E");
    mix-blend-mode:overlay;
    pointer-events:none;
  }
  .authority-grid{
    position:relative; z-index:1;
    display:grid; grid-template-columns: .85fr 1.15fr; gap:64px; align-items:center;
  }
  @media (max-width:900px){ .authority-grid{ grid-template-columns:1fr; gap:48px; } }
  .portrait-frame{
    position:relative;
    border-radius:24px;
    overflow:hidden;
    aspect-ratio:4/5;
    background:#000;
    box-shadow:0 40px 90px -30px rgba(43,92,255,.35);
  }
  .portrait-frame img{
    width:100%; height:100%; object-fit:cover;
    filter:grayscale(15%) contrast(1.08);
  }
  @media (max-width:640px){
    .portrait-frame img{ filter:grayscale(10%) contrast(1.05) brightness(1.2); }
  }
  .portrait-frame::after{
    content:'';
    position:absolute; inset:0;
    background:linear-gradient(180deg, transparent 55%, rgba(0,0,0,.75) 100%),
               linear-gradient(90deg, rgba(43,92,255,.16), transparent 40%);
    pointer-events:none;
  }
  .portrait-frame::before{
    content:'';
    position:absolute; inset:0; border-radius:24px;
    border:1px solid rgba(255,255,255,.14);
    pointer-events:none; z-index:2;
  }
  .portrait-caption{
    position:absolute; left:24px; bottom:22px; z-index:2;
  }
  .portrait-caption .name{ font-family:'Space Grotesk',sans-serif; font-weight:700; font-size:19px; }
  .portrait-caption .role{ font-family:'IBM Plex Mono',monospace; font-size:11.5px; color:rgba(255,255,255,.65); margin-top:4px; }

  .authority-copy .eyebrow{ color:rgba(255,255,255,.55); }
  .authority-copy .eyebrow::before{ background:var(--signal); }
  .authority-copy h2{
    font-size:clamp(26px,3.4vw,36px); font-weight:700; line-height:1.16; color:#fff;
    max-width:520px;
  }
  .authority-copy p{
    margin-top:20px; font-size:15.5px; line-height:1.75; color:rgba(255,255,255,.68);
    max-width:520px;
  }
  .credential-card{
    margin-top:32px;
    display:flex; gap:18px; align-items:center;
    background:rgba(255,255,255,.05);
    border:1px solid rgba(255,255,255,.14);
    border-radius:18px;
    padding:16px 18px;
    max-width:520px;
    backdrop-filter:blur(6px);
  }
  .cert-thumb{
    flex:0 0 auto; width:78px; height:100px; border-radius:8px; overflow:hidden;
    border:1px solid rgba(255,255,255,.18);
    box-shadow:0 12px 26px -10px rgba(0,0,0,.6);
    position:relative;
  }
  .cert-thumb img{ width:100%; height:100%; object-fit:cover; object-position:top; }
  .cert-zoom{ display:block; width:100%; height:100%; padding:0; margin:0; border:0; background:none; cursor:zoom-in; }
  .mc-cert-full{ width:100%; height:auto; border-radius:12px; border:1px solid var(--line); margin-top:18px; }

  /* ---------- IMAGE FALLBACKS ---------- */
  .img-fallback-label{ display:none; }
  .portrait-frame.img-fallback{
    background:linear-gradient(160deg,#17171c,#08080a);
  }
  .portrait-frame.img-fallback img{ display:none; }
  .portrait-frame.img-fallback .img-fallback-label{
    display:flex; align-items:center; justify-content:center;
    position:absolute; inset:0; z-index:1;
    font-family:'Space Grotesk',sans-serif; font-weight:700; font-size:44px;
    color:rgba(255,255,255,.22); letter-spacing:.04em;
  }
  .cert-thumb.img-fallback{
    background:linear-gradient(160deg,#1c1c22,#08080a);
  }
  .cert-thumb.img-fallback img{ display:none; }
  .cert-thumb.img-fallback .img-fallback-label{
    display:flex; align-items:center; justify-content:center;
    position:absolute; inset:0; z-index:1;
    font-family:'IBM Plex Mono',monospace; font-size:9.5px; text-align:center; line-height:1.3;
    color:rgba(255,255,255,.4); padding:6px;
  }
  .credential-text .cred-title{ font-weight:600; font-size:14px; color:#fff; }
  .credential-text .cred-sub{ margin-top:4px; font-size:12.5px; color:rgba(255,255,255,.55); font-family:'IBM Plex Mono',monospace; line-height:1.5; }

  /* ---------- PROBLEM ---------- */
  .problem-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
  @media (max-width:900px){ .problem-grid{ grid-template-columns:1fr; } }
  .problem-card{
    border:1px solid var(--line); border-radius:var(--radius-md);
    padding:30px 26px; background:var(--paper);
  }
  .problem-card .num{ font-family:'IBM Plex Mono',monospace; font-size:12px; color:var(--ink-faint); }
  .problem-card h3{ font-size:18.5px; font-weight:700; margin:14px 0 10px; }
  .problem-card p{ font-size:14.3px; line-height:1.65; color:var(--ink-soft); }

  /* ---------- CURRENT PORTFOLIO ---------- */
  .portfolio-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:16px; }
  @media (max-width:900px){ .portfolio-grid{ grid-template-columns:1fr 1fr; } .portfolio-card.wide{ grid-column:span 2; } }
  .portfolio-card{
    position:relative;
    border:1px solid var(--line); border-radius:var(--radius-md);
    padding:24px 22px 22px; background:var(--paper);
    transition:border-color .2s ease, transform .2s ease;
  }
  .portfolio-card:hover{ border-color:var(--ink-faint); transform:translateY(-2px); }
  .portfolio-card.wide{ grid-column:span 2; }
  .portfolio-status{
    position:absolute; top:22px; right:20px;
    display:flex; align-items:center; gap:6px;
    font-family:'IBM Plex Mono',monospace; font-size:10px; letter-spacing:.04em;
    text-transform:uppercase; color:var(--ink-faint);
  }
  .portfolio-status .dot{ width:6px; height:6px; border-radius:50%; background:var(--signal); flex:none; }
  .portfolio-icon{
    width:38px; height:38px; border-radius:10px;
    display:flex; align-items:center; justify-content:center;
    background:var(--accent-dim); color:var(--accent);
    margin-bottom:16px;
  }
  .portfolio-card h3{ font-size:16px; font-weight:700; line-height:1.3; margin:0 0 6px; padding-right:64px; }
  .portfolio-card h3 .qty{ font-family:'IBM Plex Mono',monospace; font-weight:500; font-size:12.5px; color:var(--ink-faint); margin-left:4px; }
  .portfolio-card .market{ font-size:13px; color:var(--ink-soft); }
  .portfolio-chips{ display:flex; flex-wrap:wrap; gap:6px; margin-top:14px; }
  .portfolio-chip{
    font-family:'IBM Plex Mono',monospace; font-size:10.5px;
    padding:4px 9px; border-radius:100px;
    background:var(--mist); color:var(--ink-soft);
  }

  /* ---------- WHO THIS IS FOR ---------- */
  .fit-band{
    background:var(--mist); border-radius:var(--radius-lg);
    padding:52px 44px;
    display:grid; grid-template-columns:1fr 1fr; gap:40px;
  }
  @media (max-width:860px){ .fit-band{ grid-template-columns:1fr; padding:40px 26px; } }
  .fit-band h3{ font-size:22px; font-weight:700; margin-bottom:22px; }
  .fit-list{ list-style:none; margin:0; padding:0; }
  .fit-list li{
    display:flex; gap:14px; align-items:flex-start;
    padding:14px 0; border-top:1px solid var(--line);
    font-size:15px; color:var(--ink);
  }
  .fit-list li:first-child{ border-top:none; }
  .fit-check{
    flex:0 0 auto; width:20px; height:20px; border-radius:50%;
    background:var(--ink); color:#fff; font-size:11px;
    display:flex; align-items:center; justify-content:center; margin-top:2px;
  }
  .fit-not h3.fit-not-heading{ font-size:13px; text-transform:uppercase; letter-spacing:.06em; color:var(--ink-faint); font-weight:600; margin-bottom:14px; font-family:'IBM Plex Mono',monospace; }

  /* ---------- SYSTEM / ECOSYSTEM ---------- */
  .system-wrap{
    display:grid; grid-template-columns:repeat(4,1fr); gap:16px; margin-bottom:24px;
  }
  @media (max-width:900px){ .system-wrap{ grid-template-columns:repeat(2,1fr); } }
  @media (max-width:560px){ .system-wrap{ grid-template-columns:1fr; } }
  .pillar{
    border:1px solid var(--line); border-radius:var(--radius-md);
    padding:26px 22px; background:var(--paper);
    position:relative;
  }
  .pillar .idx{ font-family:'IBM Plex Mono',monospace; font-size:11.5px; color:var(--accent); }
  .pillar h3{ font-size:16.5px; font-weight:700; margin:12px 0 8px; }
  .pillar p{ font-size:13.3px; color:var(--ink-soft); line-height:1.55; }
  .system-loop{
    border:1px dashed var(--line); border-radius:var(--radius-md);
    padding:22px 26px; display:flex; align-items:center; gap:16px;
    font-size:14px; color:var(--ink-soft);
  }
  .system-loop .loop-icon{
    flex:0 0 auto; width:38px; height:38px; border-radius:50%;
    background:var(--accent-dim); color:var(--accent);
    display:flex; align-items:center; justify-content:center; font-size:16px; font-weight:700;
  }


  /* ---------- OFFER ---------- */
  .offer-grid{ display:grid; grid-template-columns:1fr 1.15fr; gap:22px; }
  @media (max-width:900px){ .offer-grid{ grid-template-columns:1fr; } }
  .offer-card{
    border-radius:var(--radius-lg); padding:38px 34px;
    border:1px solid var(--line);
  }
  .offer-card.main{
    background:var(--ink); color:#fff; border-color:var(--ink);
    position:relative; overflow:hidden;
  }
  .offer-card.main::before{
    content:''; position:absolute; top:-40%; right:-20%; width:60%; height:140%;
    background:radial-gradient(circle, rgba(43,92,255,.35), transparent 65%);
    pointer-events:none;
  }
  @media (max-width:900px){
    /* see .calc-card::before - same reason, same fix */
    .offer-card.main::before{
      top:-12%; right:-25%; width:150%; height:50%;
      background:radial-gradient(ellipse at 50% 0%, rgba(43,92,255,.32), transparent 70%);
    }
  }
  .offer-tag{ font-family:'IBM Plex Mono',monospace; font-size:11.5px; text-transform:uppercase; letter-spacing:.06em; color:var(--ink-faint); }
  .offer-card.main .offer-tag{ color:rgba(255,255,255,.5); }
  .offer-card h3{ font-size:24px; font-weight:700; margin:12px 0 6px; }
  .offer-price{ font-family:'Space Grotesk',sans-serif; font-weight:700; font-size:34px; margin:10px 0 18px; }
  .offer-price small{ font-size:14px; font-weight:500; color:var(--ink-faint); }
  .offer-card.main .offer-price small{ color:rgba(255,255,255,.5); }
  .offer-list{ list-style:none; margin:0 0 22px; padding:0; }
  .offer-list li{
    padding:10px 0; border-top:1px solid var(--line);
    font-size:14.3px; color:var(--ink-soft); display:flex; gap:10px;
  }
  .offer-card.main .offer-list li{ border-top-color:rgba(255,255,255,.14); color:rgba(255,255,255,.72); }
  .offer-list li:first-child{ border-top:none; }
  .offer-list li::before{ content:'—'; color:var(--ink-faint); flex:0 0 auto; }
  .offer-meta{ display:flex; gap:20px; margin-top:20px; flex-wrap:wrap; }
  .offer-meta-item{ font-size:12px; font-family:'IBM Plex Mono',monospace; color:var(--ink-faint); }
  .offer-card.main .offer-meta-item{ color:rgba(255,255,255,.5); }
  .offer-card .btn{ margin-top:24px; width:100%; justify-content:center; }
  .offer-card:not(.main) .btn-primary{ background:var(--ink); color:#fff; }
  .offer-card.main .btn{ background:#fff; color:var(--ink); }

  /* ---------- CASE STUDY FULL ---------- */
  .case-study-grid{
    display:grid; grid-template-columns:1fr 1fr; gap:22px;
  }
  @media (max-width:860px){ .case-study-grid{ grid-template-columns:1fr; } }
  .case-study-card{
    display:block;
    border:1px solid var(--line); border-radius:var(--radius-lg);
    padding:36px 32px;
    background:var(--paper);
    transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    font-family:inherit; text-align:left; width:100%; cursor:pointer;
  }
  .case-study-card:hover{
    transform:translateY(-4px);
    border-color:var(--ink);
    box-shadow:0 26px 50px -28px rgba(10,10,12,.25);
  }
  .csc-top{ display:flex; align-items:center; justify-content:space-between; margin-bottom:20px; }
  .csc-type{
    font-family:'IBM Plex Mono',monospace; font-size:11px; text-transform:uppercase; letter-spacing:.06em;
    color:var(--accent); background:var(--accent-dim); padding:6px 12px; border-radius:100px;
  }
  .csc-arrow{
    width:32px; height:32px; border-radius:50%; border:1px solid var(--line);
    display:flex; align-items:center; justify-content:center;
    color:var(--ink-soft);
    transition:background .2s ease, color .2s ease, border-color .2s ease, transform .2s ease;
  }
  .csc-arrow-icon{ display:block; transition:transform .2s ease; }
  .case-study-card:hover .csc-arrow{ background:var(--ink); color:#fff; border-color:var(--ink); }
  .case-study-card:hover .csc-arrow-icon{ transform:translate(1px,-1px); }
  .case-study-card h3{
    font-size:21px; font-weight:700; line-height:1.25; margin-bottom:14px;
  }
  .csc-summary{
    font-size:14.3px; line-height:1.7; color:var(--ink-soft); margin-bottom:26px;
  }
  .csc-metrics{
    display:grid; grid-template-columns:repeat(3,1fr); gap:14px;
    padding-top:22px; border-top:1px solid var(--line);
    margin-bottom:22px;
  }
  @media (max-width:480px){ .csc-metrics{ grid-template-columns:1fr; gap:12px; } }
  .csc-metric-num{ font-family:'Space Grotesk',sans-serif; font-weight:700; font-size:19px; }
  .csc-metric-label{ margin-top:4px; font-size:11.5px; color:var(--ink-faint); line-height:1.4; }
  .csc-cta{
    font-size:14px; font-weight:600; color:var(--ink);
    display:inline-flex; align-items:center; gap:6px;
  }

  /* ---------- CASE STUDY MODAL ---------- */
  .modal-overlay{
    position:fixed; inset:0; z-index:200;
    background:rgba(8,8,10,.72);
    backdrop-filter:blur(6px);
    display:flex; align-items:center; justify-content:center;
    padding:24px;
    opacity:0; visibility:hidden;
    transition:opacity .25s ease, visibility .25s ease;
  }
  .modal-overlay.open{ opacity:1; visibility:visible; }
  .modal-box{
    position:relative;
    background:var(--paper);
    border-radius:28px;
    max-width:720px; width:100%;
    max-height:86vh; overflow-y:auto;
    padding:48px;
    transform:translateY(16px) scale(.98);
    transition:transform .25s ease;
  }
  .modal-overlay.open .modal-box{ transform:translateY(0) scale(1); }
  @media (max-width:640px){ .modal-box{ padding:30px 22px; border-radius:20px; max-height:90vh; } }
  .modal-close{
    position:absolute; top:20px; right:20px;
    width:36px; height:36px; border-radius:50%;
    border:1px solid var(--line); background:var(--paper);
    font-size:14px; color:var(--ink-soft); cursor:pointer;
    display:flex; align-items:center; justify-content:center;
    transition:background .18s ease, color .18s ease;
  }
  .modal-close:hover{ background:var(--ink); color:#fff; border-color:var(--ink); }

  .mc-type{
    display:inline-flex; font-family:'IBM Plex Mono',monospace; font-size:11px;
    text-transform:uppercase; letter-spacing:.06em;
    color:var(--accent); background:var(--accent-dim); padding:6px 12px; border-radius:100px;
    margin-bottom:18px;
  }
  .mc-title{ font-size:clamp(21px,3vw,28px); font-weight:700; line-height:1.22; margin-bottom:28px; max-width:520px; }
  .mc-block{ margin-bottom:26px; }
  .mc-block .lbl{
    font-family:'IBM Plex Mono',monospace; font-size:11px; text-transform:uppercase;
    color:var(--ink-faint); letter-spacing:.05em; margin-bottom:10px;
  }
  .mc-block p{ font-size:14.5px; line-height:1.7; color:var(--ink-soft); }
  .mc-block ul{ margin:0; padding:0; list-style:none; }
  .mc-block ul li{
    font-size:14.3px; line-height:1.65; color:var(--ink-soft);
    padding-left:16px; position:relative; margin-bottom:6px;
  }
  .mc-block ul li::before{
    content:''; position:absolute; left:0; top:9px;
    width:5px; height:5px; border-radius:50%; background:var(--ink-faint);
  }
  .mc-metrics{
    display:grid; grid-template-columns:repeat(3,1fr); gap:14px;
    background:var(--mist); border-radius:16px; padding:22px;
  }
  @media (max-width:480px){ .mc-metrics{ grid-template-columns:1fr 1fr; } }
  .mc-metric-num{ font-family:'Space Grotesk',sans-serif; font-weight:700; font-size:19px; }
  .mc-metric-label{ margin-top:4px; font-size:11.5px; color:var(--ink-faint); line-height:1.4; }
  .mc-result{
    background:var(--ink); color:#fff; border-radius:16px; padding:22px 24px;
  }
  .mc-result .lbl{ color:rgba(255,255,255,.5); }
  .mc-result p{ color:rgba(255,255,255,.82); }
  .mc-shot{
    border-radius:10px; background:var(--mist);
    border:1px dashed var(--line);
    display:flex; align-items:center; justify-content:center;
    font-family:'IBM Plex Mono',monospace; font-size:11px; color:var(--ink-faint);
    min-height:60px;
  }
  .mc-shot.has-img{
    border-style:solid; padding:14px;
  }
  .mc-shot.has-img img{
    width:100%; height:auto; max-height:260px;
    object-fit:contain; border-radius:6px; display:block;
  }

  .study{
    border:1px solid var(--line); border-radius:var(--radius-lg);
    padding:34px; margin-bottom:20px;
  }
  .study-head{ display:flex; justify-content:space-between; align-items:baseline; gap:20px; flex-wrap:wrap; margin-bottom:24px; }
  .study-head h3{ font-size:20px; font-weight:700; }
  .study-head .badge{ font-family:'IBM Plex Mono',monospace; font-size:11.5px; color:var(--accent); background:var(--accent-dim); padding:5px 11px; border-radius:100px; }
  .study-cols{ display:grid; grid-template-columns:repeat(4,1fr); gap:24px; }
  @media (max-width:900px){ .study-cols{ grid-template-columns:1fr 1fr; } }
  @media (max-width:560px){ .study-cols{ grid-template-columns:1fr; } }
  .study-col .lbl{ font-family:'IBM Plex Mono',monospace; font-size:11px; text-transform:uppercase; color:var(--ink-faint); letter-spacing:.05em; margin-bottom:8px; }
  .study-col p{ font-size:13.8px; color:var(--ink-soft); line-height:1.6; }
  .month-bars{ display:flex; align-items:flex-end; gap:6px; height:64px; margin-bottom:10px; }
  .month-bars span{ flex:1; background:linear-gradient(180deg, var(--accent), var(--ink)); border-radius:4px 4px 0 0; }
  .shot-placeholder{
    height:64px; border-radius:10px; background:var(--mist);
    border:1px dashed var(--line);
    display:flex; align-items:center; justify-content:center;
    font-family:'IBM Plex Mono',monospace; font-size:11px; color:var(--ink-faint);
  }


  /* ---------- CALCULATOR ---------- */
  .calc-card{
    background:var(--ink); color:#fff;
    border-radius:var(--radius-lg);
    display:grid; grid-template-columns:1fr 1fr;
    position:relative; overflow:hidden;
  }
  .calc-card::before{
    content:''; position:absolute; top:-30%; left:-10%; width:55%; height:120%;
    background:radial-gradient(circle, rgba(43,92,255,.28), transparent 65%);
    pointer-events:none;
  }
  @media (max-width:900px){
    .calc-card{ grid-template-columns:1fr; }
    /* stacked card = tall + narrow; a 55%-wide circle would cut a hard vertical
       edge, so switch to a wide shallow ellipse anchored top-centre */
    .calc-card::before{
      top:-18%; left:-25%; width:150%; height:55%;
      background:radial-gradient(ellipse at 50% 0%, rgba(43,92,255,.30), transparent 70%);
    }
  }

  .calc-side{ position:relative; z-index:1; padding:40px 36px; }
  .calc-side-input{ background:rgba(255,255,255,.03); border-right:1px solid rgba(255,255,255,.1); }
  @media (max-width:900px){ .calc-side-input{ border-right:none; border-bottom:1px solid rgba(255,255,255,.1); } }
  .calc-side-label{
    font-size:11px; text-transform:uppercase; letter-spacing:.08em;
    color:rgba(255,255,255,.45); margin-bottom:22px;
    display:flex; align-items:center; gap:8px;
  }
  .calc-side-input .calc-side-label::before{ content:'✎'; font-size:12px; color:var(--signal); }
  .calc-side-output .calc-side-label::before{ content:'∑'; font-size:13px; color:var(--accent); }

  .calc-inputs{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
  @media (max-width:520px){ .calc-inputs{ grid-template-columns:1fr; } }
  .calc-field{ display:flex; flex-direction:column; gap:8px; }
  .calc-field label{
    font-family:'IBM Plex Mono',monospace; font-size:10.5px;
    color:rgba(255,255,255,.55); text-transform:uppercase; letter-spacing:.03em;
    line-height:1.4;
  }
  .calc-field input{
    background:rgba(255,255,255,.07);
    border:1px solid rgba(255,255,255,.18);
    border-radius:10px;
    padding:11px 13px;
    font-family:'Space Grotesk',sans-serif; font-weight:600; font-size:15px;
    color:#fff;
    width:100%;
  }
  .calc-field input:focus{
    outline:none; border-color:var(--signal);
    background:rgba(94,230,200,.08);
  }

  .calc-rows{ display:flex; flex-direction:column; }
  .calc-row{
    display:flex; align-items:center; justify-content:space-between; gap:12px;
    padding:11px 0; border-top:1px solid rgba(255,255,255,.09);
  }
  .calc-row:first-child{ border-top:none; }
  .calc-row-label{ font-size:13.5px; color:rgba(255,255,255,.62); }
  .calc-row-val{
    font-family:'Space Grotesk',sans-serif; font-weight:600; font-size:15.5px;
    color:rgba(255,255,255,.92);
    /* fixed-width digits: values must not jitter as they recalculate */
    font-variant-numeric:tabular-nums; font-feature-settings:'tnum' 1;
  }
  /* Hierarchy through weight and scale, not colour. */
  .calc-row.key .calc-row-val{ color:#fff; font-weight:700; font-size:16.5px; }
  .calc-row.highlight{
    margin-top:8px; padding:15px 16px; border-radius:12px; border-top:none;
    background:rgba(255,255,255,.05);
    border:1px solid rgba(255,255,255,.12);
  }
  .calc-row.highlight .calc-row-label{ color:rgba(255,255,255,.75); font-weight:500; }
  .calc-row.highlight .calc-row-val{
    font-size:19px; font-weight:700; color:#fff;
    letter-spacing:-.01em;
  }

  .calc-ctas{
    display:flex; align-items:center; gap:20px; flex-wrap:wrap;
    margin-top:26px;
  }
  .calc-ctas .btn-secondary{ color:rgba(255,255,255,.65); border-bottom-color:rgba(255,255,255,.25); }
  .calc-ctas .btn-secondary:hover{ color:#fff; border-bottom-color:#fff; }

  /* ---------- FINAL CTA ---------- */
  .final-cta{
    text-align:center; padding:120px 0 110px;
  }
  .final-cta h2{ font-size:clamp(28px,4.6vw,46px); font-weight:700; max-width:720px; margin:0 auto 20px; line-height:1.14; }
  .final-cta p{ color:var(--ink-soft); font-size:16px; max-width:480px; margin:0 auto 34px; }

  footer{ border-top:1px solid var(--line); padding:36px 0; }
  .footer-row{ display:flex; justify-content:space-between; flex-wrap:wrap; gap:14px; font-size:12.5px; color:var(--ink-faint); }
  .footer-social{ display:flex; gap:18px; }
  .footer-social a{ color:var(--ink-faint); font-weight:600; }
  .footer-social a:hover{ color:var(--ink); }

  .js .reveal{ opacity:0; transform:translateY(20px); transition:opacity .6s ease, transform .6s ease; }
  .js .reveal.in{ opacity:1; transform:translateY(0); }
  /* No .js class (JS blocked or errored) => .reveal stays fully visible. */

  /* ---------- FAQ ---------- */
  .faq-list{ max-width:760px; }
  .faq-item{
    border:1px solid var(--line); border-radius:var(--radius-md);
    margin-bottom:12px; background:var(--paper);
    overflow:hidden;
  }
  .faq-q{
    list-style:none; cursor:pointer;
    display:flex; align-items:center; justify-content:space-between; gap:16px;
    padding:20px 24px;
    font-family:'Space Grotesk',sans-serif; font-weight:600; font-size:16.5px;
  }
  .faq-q::-webkit-details-marker{ display:none; }
  .faq-chev{ font-size:13px; color:var(--ink-faint); transition:transform .2s ease; flex:0 0 auto; }
  .faq-item[open] .faq-chev{ transform:rotate(180deg); }
  .faq-a{ padding:0 24px 20px; }
  .faq-a p{ margin:0; font-size:14.5px; line-height:1.7; color:var(--ink-soft); }
  .faq-item[open]{ border-color:var(--ink); }

  /* ---------- A11Y ---------- */
  .sr-only{
    position:absolute; width:1px; height:1px; padding:0; margin:-1px;
    overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0;
  }
  .skip-link{
    position:absolute; left:16px; top:-48px; z-index:300;
    background:var(--ink); color:#fff; padding:10px 16px; border-radius:8px;
    font-size:13px; font-weight:600;
    transition:top .15s ease;
  }
  .skip-link:focus{ top:12px; }
  a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible{
    outline:2px solid var(--accent); outline-offset:2px; border-radius:6px;
  }
  .calc-field input:focus-visible{ outline-color:var(--signal); }

  @media (prefers-reduced-motion: reduce){
    .js .reveal{ opacity:1; transform:none; transition:none; }
    .btn-primary{ transition:none; }
  }

  /* ================= MOBILE OVERHAUL (<=760px) ================= */
  .mobile-sticky-cta{ display:none; }
  .calc-mobile-summary{ display:none; }
  .calc-toggle{ display:none; }
  .fit-tabs{ display:none; }

  @media (max-width:760px){

    /* hero eyebrow — lighter, text-first treatment so the H1 leads */
    .hero-eyebrow{
      background:transparent; border:none;
      padding:0 0 10px; gap:6px;
      font-size:11px; font-weight:600;
      letter-spacing:.02em;
      color:var(--ink-faint);
      margin-bottom:14px;
    }
    .hero-eyebrow .dot{ width:5px; height:5px; }

    /* compact proof strip — stays in a tight row, never stacks */
    .proof-strip{
      grid-template-columns:repeat(3,1fr);
      gap:0; padding:16px 0; margin-top:40px;
    }
    .proof-item{
      padding:0 6px 0 10px; border-left:1px solid var(--line) !important;
      border-top:none !important; padding-top:0 !important;
    }
    .proof-item:first-child{ border-left:none !important; padding-left:0; }
    .proof-num{ font-size:15px; }
    .proof-label{ font-size:9.5px; margin-top:3px; line-height:1.3; }

    /* swipe hints */
    .swipe-hint{
      display:flex; align-items:center; gap:6px;
      font-family:'IBM Plex Mono',monospace; font-size:11px;
      color:var(--ink-faint); margin:-10px 0 16px;
    }

    /* generic horizontal swipe rows */
    .problem-grid, .system-wrap, .case-study-grid, .offer-grid, .portfolio-grid{
      display:flex; gap:14px; flex-wrap:nowrap;
      overflow-x:auto; scroll-snap-type:x mandatory;
      -webkit-overflow-scrolling:touch;
      margin:0 -20px; padding:0 20px 10px;
      scrollbar-width:none; -ms-overflow-style:none;
    }
    .problem-grid::-webkit-scrollbar, .system-wrap::-webkit-scrollbar,
    .case-study-grid::-webkit-scrollbar, .offer-grid::-webkit-scrollbar,
    .portfolio-grid::-webkit-scrollbar{
      display:none; height:0;
    }
    .problem-card{ flex:0 0 80%; width:auto; scroll-snap-align:start; }
    .pillar{ flex:0 0 72%; width:auto; scroll-snap-align:start; }
    .case-study-card{ flex:0 0 86%; width:auto; scroll-snap-align:start; }
    .offer-card{ flex:0 0 86%; width:auto; scroll-snap-align:start; }
    .portfolio-card{ flex:0 0 78%; width:auto; scroll-snap-align:start; }
    .portfolio-card.wide{ flex:0 0 88%; }

    .system-loop{ flex-direction:column; align-items:flex-start; text-align:left; gap:12px; }

    /* who this is for -> tabs instead of stacked lists */
    .fit-band{ display:block; padding:28px 20px; }
    .fit-tabs{
      display:flex; gap:6px; margin-bottom:20px;
      background:var(--paper); border-radius:100px; padding:4px; border:1px solid var(--line);
    }
    .fit-tab{
      flex:1; padding:10px 10px; border-radius:100px; border:none; background:transparent;
      font-size:12.5px; font-weight:600; color:var(--ink-soft); cursor:pointer; font-family:inherit;
    }
    .fit-tab.active{ background:var(--ink); color:#fff; }
    .fit-panel{ display:none; }
    .fit-panel.active{ display:block; }

    /* case study modal — denser on small screens */
    .modal-box{ padding:26px 18px; }
    .mc-title{ font-size:19px; margin-bottom:20px; }
    .mc-block{ margin-bottom:18px; }
    .mc-metrics{ grid-template-columns:1fr 1fr; padding:16px; gap:10px; }

    /* calculator — compact summary + accordion */
    .calc-side{ padding:26px 20px; }
    .calc-field label{ font-size:9.5px; }
    .calc-field input{ padding:10px 11px; font-size:14px; }
    .calc-mobile-summary{
      display:grid; grid-template-columns:repeat(3,1fr); gap:8px; margin-bottom:14px;
    }
    .cms-tile{
      background:rgba(255,255,255,.06); border:1px solid rgba(255,255,255,.14);
      border-radius:12px; padding:10px 6px; text-align:center;
    }
    .cms-label{ font-size:8.8px; text-transform:uppercase; color:rgba(255,255,255,.5); letter-spacing:.03em; }
    .cms-val{
      margin-top:4px; font-family:'Space Grotesk',sans-serif; font-weight:700;
      font-size:14px; color:#fff;
      font-variant-numeric:tabular-nums; font-feature-settings:'tnum' 1;
    }
    .calc-toggle{
      display:flex; width:100%; background:rgba(255,255,255,.06); border:1px solid rgba(255,255,255,.16);
      border-radius:10px; padding:12px; color:#fff; font-size:13px; font-weight:600;
      align-items:center; justify-content:center; gap:6px; cursor:pointer;
      margin-bottom:14px; font-family:inherit;
    }
    .calc-toggle .chev{ transition:transform .2s ease; font-size:11px; }
    .calc-toggle.open .chev{ transform:rotate(180deg); }
    .calc-rows{ display:none; }
    .calc-rows.open{ display:flex; }

    /* sticky bottom CTA */
    body{ padding-bottom:78px; }
    .mobile-sticky-cta{
      display:flex; position:fixed; left:0; right:0; bottom:0; z-index:150;
      padding:10px 16px calc(10px + env(safe-area-inset-bottom));
      background:rgba(255,255,255,.94); backdrop-filter:blur(14px) saturate(160%);
      border-top:1px solid var(--line);
      align-items:center;
      transform:translateY(100%);
      transition:transform .25s ease;
    }
    .mobile-sticky-cta.show{ transform:translateY(0); }
    .mobile-sticky-cta .btn{ flex:1; justify-content:center; padding:13px 16px; font-size:14px; }

    /* section rhythm — tighten on mobile */
    section{ padding:52px 0; }
    .section-head{ margin-bottom:32px; }

    /* hero CTA group — one designed action block */
    .hero-ctas{
      flex-direction:column; align-items:stretch; gap:13px;
      margin-top:28px;
    }
    .hero-ctas .btn-primary{ width:100%; justify-content:center; text-align:center; }
    .hero-ctas .btn-secondary{
      display:flex; width:100%; align-items:center; justify-content:center;
      padding:14px 20px; border-radius:100px;
      border:1px solid var(--line); background:transparent;
      color:var(--ink); font-weight:600; font-size:14.5px;
    }
    .hero-ctas .btn-secondary:hover{ border-color:var(--ink); background:var(--mist); }
  }

/* ---------------------------------------------------------------------------
   Sub-page styles. Added for /about/, /case-studies/, /revenue-leak-audit/
   and /roas-calculator/. Mirrors the existing .mc-metrics treatment so
   sub-pages match the homepage rather than introducing a second visual system.
   --------------------------------------------------------------------------- */
main .wrap{ padding-bottom:72px; }
main h1{ margin:10px 0 18px; }
main h2{ margin:44px 0 14px; }
main h3{ margin:26px 0 8px; }
main p, main li{ color:var(--ink-soft); line-height:1.65; }
main ul{ padding-left:20px; }
main li{ margin-bottom:9px; }
main a{ color:var(--accent); }

.lede{
  font-size:19px; line-height:1.6; color:var(--ink-soft);
  max-width:72ch; margin:0 0 12px;
}
.lede strong{ color:var(--ink); font-weight:600; }

.stat-row{
  display:grid; grid-template-columns:repeat(3,1fr); gap:14px;
  background:var(--mist); border-radius:16px; padding:22px; margin:26px 0 8px;
}
.stat b{
  display:block; font-family:'Space Grotesk',sans-serif;
  font-weight:700; font-size:22px; color:var(--ink); line-height:1.2;
}
.stat span{
  display:block; margin-top:4px; font-size:11.5px;
  color:var(--ink-faint); line-height:1.4;
}
@media (max-width:760px){
  /* portrait/cert floats must drop before the column gets too narrow to read */
  main img[style*="float"]{ float:none !important; margin:0 0 20px !important; max-width:100% !important; }
  main h2{ margin:34px 0 12px; }
  main h1{ font-size:30px; line-height:1.18; }
  .lede{ font-size:17px; }
}
@media (max-width:560px){
  .stat-row{ grid-template-columns:1fr 1fr; padding:16px; gap:10px; }
  .stat b{ font-size:19px; }
}
@media (max-width:380px){
  .stat-row{ grid-template-columns:1fr; }
}
/* nothing in a sub-page may cause sideways scroll */
main{ overflow-x:hidden; }
main img{ max-width:100%; height:auto; }
main table{ display:block; overflow-x:auto; }