:root{
    --bg:#070708;
    --bg-2:#0D1210;
    --card:#10161A;
    --card-2:#141C20;
    --ink:#F2F4F3;
    --ink-dim:#9AA5B4;
    --ink-faint:#5B6472;
    --teal:#0F9B8E;
    --teal-bright:#21C7B5;
    --orange:#FF8000;
    --orange-dim:#7A4413;
    --indigo:#6366F1;
    --border:#1E2130;
    --border-soft:#1A2420;
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  h1,h2,h3,.display{
    font-family:'Space Grotesk',-apple-system,sans-serif;
    letter-spacing:-0.02em;
    margin:0;
  }
  .wrap{max-width:1120px;margin:0 auto;padding:0 28px;}
  a{color:inherit;text-decoration:none;}

  /* ---------- NAV ---------- */
  .nav{
    position:sticky;top:0;z-index:40;
    background:rgba(7,7,8,0.86);
    backdrop-filter:blur(10px);
    border-bottom:1px solid var(--border);
  }
  .nav-inner{
    max-width:1120px;margin:0 auto;padding:16px 28px;
    display:flex;align-items:center;justify-content:space-between;
  }
  .nav-logo{display:flex;align-items:center;}
  .nav-logo img{height:26px;width:auto;display:block;}
  .nav-cta{
    background:var(--orange);color:#0A0A0A;font-weight:600;font-size:14px;
    padding:10px 20px;border-radius:8px;
  }

  /* ---------- HERO ---------- */
  .hero{
    position:relative;
    padding:88px 0 64px;
    overflow:hidden;
  }
  .hero::before{
    content:"";
    position:absolute;inset:0;
    background:
      radial-gradient(ellipse 900px 500px at 75% -10%, rgba(15,155,142,0.30), transparent 60%),
      radial-gradient(ellipse 700px 400px at 0% 40%, rgba(255,128,0,0.07), transparent 60%);
    pointer-events:none;
  }
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;font-weight:600;color:var(--teal-bright);
    text-transform:uppercase;letter-spacing:0.08em;
    border:1px solid var(--border-soft);
    background:rgba(15,155,142,0.08);
    padding:7px 14px;border-radius:100px;
    margin-bottom:28px;
    position:relative;z-index:1;
  }
  .eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--teal-bright);box-shadow:0 0 8px var(--teal-bright);}

  .hero-grid{
    display:grid;grid-template-columns:1.15fr 0.85fr;gap:56px;align-items:center;
    position:relative;z-index:1;
  }
  .hero h1{
    font-size:50px;line-height:1.06;font-weight:600;
    margin-bottom:22px;
  }
  .hero h1 .accent{color:var(--teal-bright);}
  .hero-sub{
    font-size:18px;line-height:1.55;color:var(--ink-dim);
    max-width:480px;margin-bottom:32px;
  }
  .hero-ctas{display:flex;gap:14px;align-items:center;flex-wrap:wrap;}
  .btn-primary{
    background:var(--orange);color:#0A0A0A;font-weight:600;font-size:15px;
    padding:14px 26px;border-radius:9px;display:inline-flex;align-items:center;gap:8px;
    box-shadow:0 8px 24px rgba(255,128,0,0.25);
    transition:transform 0.15s ease;
  }
  .btn-primary:hover{transform:translateY(-1px);}
  .btn-ghost{
    color:var(--ink-dim);font-size:15px;font-weight:500;
    padding:14px 6px;border-bottom:1px solid var(--border);
  }

  /* ---------- DECAY VISUAL (signature element) ---------- */
  .decay-card{
    background:linear-gradient(165deg, var(--card) 0%, var(--bg-2) 100%);
    border:1px solid var(--border-soft);
    border-radius:18px;
    padding:30px 28px 26px;
    position:relative;
  }
  .decay-label{
    font-size:12px;color:var(--ink-faint);text-transform:uppercase;
    letter-spacing:0.08em;font-weight:600;margin-bottom:4px;
  }
  .decay-title{font-size:15px;color:var(--ink-dim);margin-bottom:22px;}
  .decay-rooms{display:flex;flex-direction:column;gap:9px;}
  .decay-row{display:flex;align-items:center;gap:12px;}
  .decay-time{font-size:12px;color:var(--ink-faint);width:46px;font-family:monospace;flex-shrink:0;}
  .decay-bar-bg{flex:1;height:22px;background:#1A1F22;border-radius:5px;overflow:hidden;position:relative;}
  .decay-bar{height:100%;border-radius:5px;transition:width 1.4s cubic-bezier(.4,0,.2,1);}
  .decay-val{font-size:13px;font-weight:600;width:54px;text-align:right;flex-shrink:0;}
  .decay-foot{
    margin-top:22px;padding-top:18px;border-top:1px solid var(--border-soft);
    display:flex;justify-content:space-between;align-items:baseline;
  }
  .decay-foot-label{font-size:13px;color:var(--ink-faint);}
  .decay-foot-val{font-family:'Space Grotesk';font-size:22px;font-weight:600;color:var(--orange);}

  /* ---------- SECTION SHELL ---------- */
  section{padding:84px 0;}
  .section-head{max-width:640px;margin-bottom:48px;}
  .kicker{
    font-size:13px;font-weight:600;color:var(--teal-bright);
    text-transform:uppercase;letter-spacing:0.08em;margin-bottom:14px;
  }
  .section-head h2{font-size:34px;font-weight:600;line-height:1.18;margin-bottom:14px;}
  .section-head p{font-size:17px;color:var(--ink-dim);line-height:1.6;}

  /* ---------- PROBLEM ---------- */
  .problem{background:var(--bg-2);border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
  .stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--border);border-radius:14px;overflow:hidden;margin-top:8px;}
  .stat-cell{background:var(--card);padding:30px 26px;}
  .stat-num{font-family:'Space Grotesk';font-size:38px;font-weight:600;color:var(--teal-bright);margin-bottom:8px;line-height:1;}
  .stat-cap{font-size:14px;color:var(--ink-dim);line-height:1.45;}

  /* ---------- CALCULATOR ---------- */
  .calc-section{position:relative;}
  .calc-card{
    background:var(--card);
    border:1px solid var(--border);
    border-radius:20px;
    overflow:hidden;
  }
  .calc-top{
    background:var(--card-2);
    padding:26px 32px;
    border-bottom:1px solid var(--border);
    display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
  }
  .calc-top h3{font-size:19px;font-weight:600;}
  .calc-top-tag{
    font-size:12px;color:var(--ink-faint);background:var(--bg-2);
    padding:6px 12px;border-radius:6px;border:1px solid var(--border-soft);
  }
  .calc-body{padding:34px 32px;display:grid;grid-template-columns:1fr 1fr;gap:40px;}
  .calc-inputs{display:flex;flex-direction:column;gap:22px;}
  .field label{
    display:flex;justify-content:space-between;
    font-size:14px;color:var(--ink-dim);margin-bottom:10px;
  }
  .field label .val{color:var(--teal-bright);font-weight:600;font-family:monospace;}
  input[type=range]{
    width:100%;height:6px;border-radius:3px;background:var(--border);
    -webkit-appearance:none;appearance:none;outline:none;
  }
  input[type=range]::-webkit-slider-thumb{
    -webkit-appearance:none;width:20px;height:20px;border-radius:50%;
    background:var(--teal-bright);cursor:pointer;border:3px solid var(--bg);
    box-shadow:0 0 0 1px var(--border);
  }
  .field-hint{font-size:12px;color:var(--ink-faint);margin-top:6px;}
  .calc-outputs{
    background:var(--bg-2);border-radius:14px;padding:26px;
    display:flex;flex-direction:column;gap:20px;
    border:1px solid var(--border-soft);
  }
  .out-row{display:flex;justify-content:space-between;align-items:baseline;padding-bottom:16px;border-bottom:1px solid var(--border-soft);}
  .out-row:last-child{border-bottom:none;padding-bottom:0;}
  .out-label{font-size:13.5px;color:var(--ink-dim);max-width:170px;line-height:1.4;}
  .out-val{font-family:'Space Grotesk';font-size:24px;font-weight:600;text-align:right;}
  .out-val.orange{color:var(--orange);}
  .out-val.teal{color:var(--teal-bright);}
  .calc-foot{
    padding:20px 32px;background:var(--card-2);border-top:1px solid var(--border);
    display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;
  }
  .calc-foot p{font-size:13px;color:var(--ink-faint);margin:0;max-width:460px;}

  /* ---------- HOW IT WORKS ---------- */
  .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
  .step{
    background:var(--card);border:1px solid var(--border);border-radius:16px;
    padding:30px 26px;position:relative;
  }
  .step-num{
    font-family:'Space Grotesk';font-size:14px;font-weight:600;color:var(--orange);
    margin-bottom:18px;letter-spacing:0.04em;
  }
  .step h3{font-size:18px;font-weight:600;margin-bottom:10px;}
  .step p{font-size:14.5px;color:var(--ink-dim);line-height:1.55;margin:0;}
  .step-arrow{
    display:none;
  }

  /* ---------- CASE STUDY ---------- */
  .case{
    background:linear-gradient(135deg, var(--card-2) 0%, var(--bg-2) 100%);
    border:1px solid var(--border);
    border-radius:20px;
    padding:44px 44px;
    display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  }
  .case-quote{font-size:21px;line-height:1.5;font-weight:500;color:var(--ink);margin-bottom:18px;}
  .case-attr{font-size:14px;color:var(--ink-dim);}
  .case-attr strong{color:var(--ink);}
  .case-stats{display:flex;flex-direction:column;gap:18px;}
  .case-stat{display:flex;justify-content:space-between;align-items:baseline;padding-bottom:14px;border-bottom:1px solid var(--border-soft);}
  .case-stat:last-child{border-bottom:none;padding-bottom:0;}
  .case-stat-label{font-size:13.5px;color:var(--ink-dim);}
  .case-stat-val{font-family:'Space Grotesk';font-size:22px;font-weight:600;color:var(--teal-bright);}

  /* ---------- STOREFRONT ---------- */
  .storefront{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
  .sf-card{
    background:var(--card);border:1px solid var(--border);border-radius:16px;
    padding:8px;
  }
  .sf-mock{
    background:var(--bg-2);border-radius:12px;padding:22px;
  }
  .sf-mock-top{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
  .sf-dot{width:9px;height:9px;border-radius:50%;background:var(--ink-faint);}
  .sf-mock-title{font-size:13px;color:var(--ink-faint);font-family:monospace;}
  .sf-banner{
    height:120px;border-radius:8px;
    background:linear-gradient(135deg, rgba(15,155,142,0.35), rgba(255,128,0,0.18));
    margin-bottom:16px;display:flex;align-items:center;justify-content:center;
    border:1px solid var(--border-soft);
  }
  .sf-banner-label{font-family:'Space Grotesk';font-size:16px;font-weight:600;color:var(--ink);}
  .sf-row{display:flex;gap:10px;}
  .sf-pill{flex:1;background:var(--card-2);border-radius:8px;padding:14px;border:1px solid var(--border-soft);}
  .sf-pill-label{font-size:11px;color:var(--ink-faint);text-transform:uppercase;letter-spacing:0.05em;margin-bottom:6px;}
  .sf-pill-val{font-size:14px;color:var(--ink);font-weight:600;}

  /* ---------- FINAL CTA ---------- */
  .final-cta{
    text-align:center;padding:96px 0;
    background:radial-gradient(ellipse 800px 400px at 50% 0%, rgba(15,155,142,0.18), transparent 70%);
    border-top:1px solid var(--border);
  }
  .final-cta h2{font-size:38px;font-weight:600;margin-bottom:16px;max-width:640px;margin-left:auto;margin-right:auto;line-height:1.2;}
  .final-cta p{font-size:17px;color:var(--ink-dim);margin-bottom:36px;}

  footer{padding:36px 0;border-top:1px solid var(--border);}
  .foot-row{display:flex;justify-content:space-between;align-items:flex-end;flex-wrap:wrap;gap:12px;}
  .foot-row p{font-size:13px;color:var(--ink-faint);margin:0;}
  .foot-left{display:flex;flex-direction:column;align-items:flex-start;gap:3px;}
  .foot-copyright{font-weight:500;}
  .foot-tagline{font-size:12px;color:var(--ink-faint);}

  @media (max-width:880px){
    .hero-grid{grid-template-columns:1fr;}
    .hero h1{font-size:36px;}
    .calc-body{grid-template-columns:1fr;}
    .stat-row{grid-template-columns:1fr;}
    .steps{grid-template-columns:1fr;}
    .case{grid-template-columns:1fr;padding:32px 26px;}
    .storefront{grid-template-columns:1fr;}
    .nav-inner{padding:14px 20px;}
  }