/* ---------- MONOCHROME THEME (BLACK & WHITE + GRAYS) ---------- */
  :root{
    --bg:#ffffff;
    --surface:#f7f7f7;
    --fg:#0a0a0a;
    --muted:#777777;
    --muted2:#bdbdbd;
    --glass: rgba(0,0,0,0.04);
    --accent:#000000; /* pure black accent for CTA outlines */
    --card-shadow: 0 6px 24px rgba(10,10,10,0.06);
    --radius:12px;
    --max-width:1200px;
  }
  *{box-sizing:border-box}
  html,body{height:100%}
  body{
    margin:0;
    font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
    background:var(--bg);
    color:var(--fg);
    -webkit-font-smoothing:antialiased;
    -moz-osx-font-smoothing:grayscale;
    line-height:1.45;
  }

  /* container */
  .container{max-width:var(--max-width);margin:0 auto;padding:28px;}

  /* Header */
  header.site-header{
    position:sticky;
    top:0;
    z-index:60;
    backdrop-filter: blur(6px);
    background: linear-gradient(180deg, rgba(255,255,255,0.85), rgba(255,255,255,0.65));
    border-bottom: 1px solid var(--muted2);
  }
  .nav{
    display:flex;align-items:center;justify-content:space-between;
    gap:16px;padding:14px 20px;
    max-width:var(--max-width);margin:0 auto;
  }
  .brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--fg)}
  .logo {
    width:48px;height:48px;display:flex;align-items:center;justify-content:center;
    border-radius:10px;background: linear-gradient(180deg,#fff,#f1f1f1);
    box-shadow: var(--card-shadow);
  }
  .brand h1{font-size:18px;margin:0;letter-spacing:-0.4px}
  .nav-right{display:flex;align-items:center;gap:12px}

  /* Hero */
  .hero{
    display:grid;grid-template-columns:1fr 420px;gap:34px;align-items:center;padding:48px 20px;
  }
  .hero .eyebrow{color:var(--muted);font-weight:600;font-size:13px;margin-bottom:8px}
  .hero h2{font-size:40px;margin:6px 0 12px;line-height:1.04}
  .hero p{color:var(--muted);margin:0 0 20px;max-width:56ch}
  .hero .ctas{display:flex;gap:12px;flex-wrap:wrap}
  .btn{
    display:inline-flex;align-items:center;gap:10px;padding:12px 16px;border-radius:10px;font-weight:600;
    text-decoration:none;border:1px solid transparent;cursor:pointer;
    background:#000;color:#fff;
    transition:transform .15s ease,box-shadow .15s ease,opacity .15s ease;
  }
  .btn.ghost{
    background:transparent;color:var(--fg);
    border:1px solid var(--muted2);
  }
  .btn:active{transform:translateY(1px)}
  .btn.small{padding:9px 12px;font-size:14px}

  /* Right column card */
  .card{
    background:var(--surface);padding:20px;border-radius:14px;box-shadow:var(--card-shadow);
  }
  .card h3{margin:0 0 10px;font-size:18px}
  .stat{display:flex;align-items:center;gap:10px}
  .stat .big{font-size:28px;font-weight:700}
  .subtle{color:var(--muted);font-size:13px}

  /* Features */
  .features{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;padding:28px 0}
  .feature-card{background:linear-gradient(180deg,#fff,#fbfbfb);padding:20px;border-radius:14px;border:1px solid var(--muted2);box-shadow:0 8px 24px rgba(10,10,10,0.04)}
  .feature-card h4{margin:0 0 8px;font-size:16px}
  .feature-card p{margin:0;color:var(--muted);font-size:14px}

  /* How it works */
  .steps{display:flex;flex-direction:column;gap:12px;margin:20px 0}
  .step{display:flex;gap:14px;align-items:flex-start}
  .step .badge{width:44px;height:44px;border-radius:10px;background:#fff;display:flex;align-items:center;justify-content:center;border:1px solid var(--muted2);font-weight:700}
  .step strong{display:block;margin-bottom:6px}
  .muted{color:var(--muted)}

  /* Carousel */
  .carousel{position:relative;margin-top:18px;border-radius:12px;overflow:hidden;border:1px solid var(--muted2);background:#fff}
  .slides{display:flex;transition:transform .45s cubic-bezier(.2,.9,.25,1)}
  .slide{min-width:100%;min-height:260px;display:flex;align-items:center;justify-content:center;padding:20px}
  .controls{position:absolute;left:12px;right:12px;bottom:12px;display:flex;justify-content:space-between;pointer-events:none}
  .controls button{pointer-events:auto;border-radius:8px;padding:8px;background:rgba(0,0,0,0.07);border:none}

  /* FAQ */
  .faq{margin-top:26px}
  .qa{border-top:1px solid var(--muted2);padding:18px 0}
  .qa summary{font-weight:700;cursor:pointer;outline:none}
  .qa p{margin:8px 0 0;color:var(--muted)}

  /* CTA strip */
  .cta-strip{margin:28px 0;padding:22px;border-radius:12px;background:linear-gradient(180deg,#fff,#f6f6f6);display:flex;align-items:center;justify-content:space-between;gap:12px;border:1px solid var(--muted2)}
  .cta-strip .download{display:flex;gap:10px;align-items:center}
  .badge{display:inline-flex;gap:8px;align-items:center;padding:8px 12px;border-radius:10px;background:#fff;border:1px solid var(--muted2);font-weight:600}

  /* Footer */
  footer{padding:40px 20px;border-top:1px solid var(--muted2);margin-top:40px}
  .footer-grid{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}

  /* Responsive */
  @media (max-width:980px){
    .hero{grid-template-columns:1fr; text-align:left}
    .features{grid-template-columns:1fr 1fr}
    .brand h1{font-size:16px}
  }
  @media (max-width:768px){
    .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
  }
  @media (max-width:600px){
    .features{grid-template-columns:1fr}
    .nav{padding:8px 14px}
    .footer-grid{flex-direction:column;gap:24px}
  }

  /* small helpers */
  .muted-note{font-size:13px;color:var(--muted);margin-top:6px}
  .pill{display:inline-block;padding:6px 10px;border-radius:999px;border:1px solid var(--muted2);font-weight:700}
  .tiny{font-size:13px;color:var(--muted)}
  .hidden{display:none}

  /* Social media links */
  .footer-grid nav a.tiny i {
    width: 20px;
    text-align: center;
  }