:root{
    --navy:#002856; --columbia:#3a8dde; --coral:#ff595a; --aqua:#99e6d8;
    --cloud:#f4f7fb; --ink:#20304a; --soft:#5b6c85; --line:#dde6f0;
  }
  *{margin:0;padding:0;box-sizing:border-box}
  /* fluid scaling: base size grows with screen width (16px on laptops → 22px on big monitors),
     and every rem-based size on the page scales with it */
  html{scroll-behavior:auto;font-size:clamp(16px,.55vw + 9.4px,22px)}
  body{font-family:'Montserrat',system-ui,sans-serif;color:var(--ink);background:#fff;
       line-height:1.7;font-size:1rem}
  a{color:var(--columbia)}

  /* ---------- nav ---------- */
  nav{position:fixed;top:0;left:0;right:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);
      box-shadow:0 1px 0 var(--line);display:flex;align-items:center;justify-content:space-between;padding:13px 5vw;gap:12px}
  .hel-mark{font-family:'Great Vibes',cursive;font-size:1.5rem;color:var(--navy);text-decoration:none;line-height:1.1;white-space:nowrap}
  .hel-mark em{font-style:normal;color:var(--coral)}
  .hel-mark small{display:block;font-family:'Montserrat';font-size:.56rem;font-weight:800;letter-spacing:.2em;color:var(--columbia)}
  .nav-cta{background:var(--coral);color:#fff;font-weight:800;font-size:.85rem;text-decoration:none;
           padding:11px 22px;border-radius:999px;box-shadow:0 6px 16px rgba(255,89,90,.35);white-space:nowrap}

  /* ---------- header (hero) ---------- */
  header{position:relative;overflow:hidden;background:linear-gradient(160deg,#14203f,var(--navy) 45%,#0f4a8f);
         color:#fff;padding:150px 6vw 96px;text-align:center;min-height:88svh;display:flex;
         flex-direction:column;justify-content:center;align-items:center}
  #launchsky{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
  .lp-line{fill:none;stroke:rgba(153,230,216,.55);stroke-width:2.5;stroke-dasharray:2 11;stroke-linecap:round}
  .lp-star{fill:var(--aqua)}
  @keyframes drawup{to{stroke-dashoffset:0}}
  @keyframes popstar{to{opacity:1;transform:scale(1)}}
  @keyframes twinkle{50%{opacity:.35;transform:scale(.72)}}
  @keyframes sparkfloat{8%{opacity:1}40%{opacity:.5}60%{opacity:.95}
    100%{opacity:0;transform:translate(var(--dx),var(--dy)) rotate(var(--rot,70deg)) scale(.55)}}
  .lp-spark{opacity:0;transform-box:fill-box;transform-origin:center;
            animation:sparkfloat var(--dur,4s) cubic-bezier(.3,.45,.5,1) forwards}
  .hero-inner{position:relative;z-index:2;max-width:840px}
  .script-hero{font-family:'Great Vibes',cursive;font-size:clamp(1.9rem,4.2vw,3rem);color:var(--aqua);
               display:block;transform:rotate(-2deg);margin-bottom:8px}
  .hero-ctas{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:30px}
  .btn-coral{display:inline-block;background:var(--coral);color:#fff;font-weight:800;text-decoration:none;
             padding:16px 34px;border-radius:999px;box-shadow:0 8px 24px rgba(255,89,90,.4);font-size:1rem}
  .btn-ghost{display:inline-block;color:#fff;font-weight:700;text-decoration:none;padding:16px 30px;
             border-radius:999px;border:2px solid rgba(255,255,255,.45);font-size:1rem}
  .pixie{position:fixed;pointer-events:none;z-index:9999;
         clip-path:polygon(50% 0,61% 39%,100% 50%,61% 61%,50% 100%,39% 61%,0 50%,39% 39%);
         animation:pixiefall 1.25s ease-out forwards}
  @keyframes pixiefall{15%{opacity:1}to{transform:translate(var(--px,0),var(--py,18px)) rotate(75deg) scale(0);opacity:0}}

  /* ---------- kit cards ---------- */
  .kitgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:26px 0 8px}
  .kitcard{border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#fff;
           box-shadow:0 12px 30px rgba(0,40,86,.08)}
  .kitcard .kc-top{background:linear-gradient(150deg,var(--navy),#0f4a8f);color:#fff;padding:20px 20px 16px}
  .kitcard .kc-top b{font-size:1rem}
  .kitcard .kc-top span{display:block;font-size:.76rem;color:var(--aqua);font-weight:700;letter-spacing:.12em;margin-bottom:6px}
  .kitcard p{padding:16px 20px;font-size:.88rem;color:var(--soft);margin:0}

  /* ---------- maker band ---------- */
  .maker{background:var(--navy);color:#fff}
  .maker .wrap-m{max-width:820px;margin:0 auto;display:grid;grid-template-columns:220px 1fr;gap:40px;align-items:center;padding:0 6vw}
  .maker img{width:100%;border-radius:16px;box-shadow:0 18px 44px rgba(0,0,0,.35)}
  .maker h2{color:#fff}
  .maker p{color:rgba(255,255,255,.82)}
  .maker a{color:var(--aqua);font-weight:700}
  @media(max-width:760px){.kitgrid{grid-template-columns:1fr}.maker .wrap-m{grid-template-columns:1fr}
    .maker img{max-width:230px}}
  @media(prefers-reduced-motion:reduce){*{animation:none!important}.lp-spark,.lp-star{opacity:1}}

  /* ---------- old header styles kept for reuse ---------- */
  .kicker{font-size:.74rem;font-weight:700;letter-spacing:.24em;text-transform:uppercase;color:var(--aqua);margin-bottom:16px}
  h1{font-weight:900;font-size:clamp(1.7rem,4.6vw,2.9rem);line-height:1.12;letter-spacing:-.02em;max-width:820px;margin:0 auto 14px}
  .sub{color:rgba(255,255,255,.82);max-width:40rem;margin:0 auto;font-size:1.02rem;font-weight:400}
  .byline{margin-top:22px;font-size:.85rem;color:rgba(255,255,255,.6)}
  .byline b{color:#fff;font-weight:700}

  /* ---------- layout ---------- */
  main{max-width:820px;margin:0 auto;padding:0 6vw}
  section{padding:52px 0;border-bottom:1px solid var(--line)}
  section:last-of-type{border-bottom:none}
  h2{font-weight:800;font-size:clamp(1.35rem,3vw,1.8rem);color:var(--navy);letter-spacing:-.01em;margin-bottom:8px}
  .stage-tag{display:inline-block;font-size:.72rem;font-weight:800;letter-spacing:.2em;text-transform:uppercase;
             color:var(--coral);margin-bottom:10px}
  h3{font-weight:800;font-size:1.02rem;color:var(--navy);margin:26px 0 8px}
  p{margin-bottom:14px}
  p.lead{font-size:1.05rem;color:var(--soft)}
  ul.plain{margin:0 0 16px 20px}
  ul.plain li{margin-bottom:8px}

  /* ---------- numbered steps ---------- */
  ol.steps{list-style:none;counter-reset:step;margin:18px 0 6px}
  ol.steps li{counter-increment:step;position:relative;padding:0 0 18px 52px}
  ol.steps li::before{content:counter(step);position:absolute;left:0;top:0;width:34px;height:34px;
    border-radius:50%;background:var(--navy);color:#fff;font-weight:800;font-size:.95rem;
    display:flex;align-items:center;justify-content:center}
  ol.steps li b{color:var(--navy)}
  .checkpoint{background:#eefaf6;border:1px solid #bfe9dd;border-left:5px solid #2bb39e;border-radius:10px;
              padding:14px 18px;margin:14px 0 6px;font-size:.94rem}
  .checkpoint b{color:#177a6b}

  /* ---------- callouts ---------- */
  .mistake{background:#fff5f5;border:1px solid #ffd4d4;border-left:5px solid var(--coral);border-radius:10px;
           padding:16px 20px;margin:18px 0}
  .mistake .mt{font-weight:800;color:#c22e2f;font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;margin-bottom:6px}
  .mistake p{margin-bottom:8px;font-size:.95rem}
  .mistake p:last-child{margin-bottom:0}

  .split{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line);border-radius:12px;
         overflow:hidden;margin:20px 0 6px}
  .split>div{padding:18px 20px}
  .split .you{background:var(--cloud);border-right:1px solid var(--line)}
  .split .ai{background:#fff}
  .split h4{font-size:.75rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase;margin-bottom:10px}
  .split .you h4{color:var(--navy)}
  .split .ai h4{color:var(--columbia)}
  .split ul{margin-left:18px;font-size:.92rem}
  .split li{margin-bottom:7px}

  /* ---------- tables ---------- */
  table{width:100%;border-collapse:collapse;margin:16px 0;font-size:.94rem}
  th{background:var(--navy);color:#fff;text-align:left;padding:11px 14px;font-weight:700}
  td{padding:11px 14px;border-bottom:1px solid var(--line);vertical-align:top}
  tr:nth-child(even) td{background:var(--cloud)}
  td.cost{font-weight:800;color:var(--navy);white-space:nowrap}

  /* ---------- misc ---------- */
  .rule-quote{border-left:5px solid var(--aqua);background:var(--cloud);border-radius:0 10px 10px 0;
              padding:16px 20px;margin:20px 0;font-size:1rem;color:var(--navy);font-weight:600}
  code{background:var(--cloud);border:1px solid var(--line);border-radius:6px;padding:2px 7px;
       font-size:.88em;color:var(--navy);font-family:ui-monospace,Menlo,Consolas,monospace}
  .toc{background:var(--cloud);border:1px solid var(--line);border-radius:14px;padding:22px 26px;margin:34px 0 0}
  .toc h3{margin:0 0 12px;font-size:.8rem;letter-spacing:.18em;text-transform:uppercase;color:var(--soft)}
  .toc ol{margin-left:20px;font-size:.95rem}
  .toc li{margin-bottom:6px}
  .toc a{text-decoration:none;color:var(--navy);font-weight:600}
  .toc a:hover{color:var(--columbia)}

  /* visual layer */
  .stat-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:26px 0 8px}
  .stat{background:var(--navy);color:#fff;border-radius:14px;padding:18px 14px;text-align:center}
  .stat b{display:block;font-size:1.7rem;font-weight:900;color:var(--aqua);letter-spacing:-.02em}
  .stat span{font-size:.78rem;font-weight:600;color:rgba(255,255,255,.75);letter-spacing:.04em}
  .endgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:20px 0}
  .endcard{border:1px solid var(--line);border-radius:12px;padding:16px;background:var(--cloud);display:flex;gap:13px;align-items:flex-start}
  .endcard svg{flex-shrink:0;color:var(--columbia);margin-top:2px}
  .endcard b{color:var(--navy);display:block;font-size:.93rem;margin-bottom:2px}
  .endcard p{font-size:.86rem;margin:0;color:var(--soft)}
  .stagepath{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:18px 0 4px}
  .stagepath a{display:block;border:1.5px solid var(--line);border-radius:12px;padding:14px 14px 12px;text-decoration:none;background:#fff}
  .stagepath a:hover{border-color:var(--columbia)}
  .stagepath .n{font-weight:900;font-size:1.35rem;color:var(--coral);display:block;line-height:1}
  .stagepath .t{font-weight:700;font-size:.86rem;color:var(--navy);display:block;margin-top:6px;line-height:1.35}
  .diagram{margin:20px 0;border:1px solid var(--line);border-radius:14px;padding:18px 14px;background:#fff}
  .diagram svg{width:100%;height:auto;display:block}
  .diagram figcaption{text-align:center;font-size:.8rem;color:var(--soft);margin-top:10px}
  .folder{background:var(--cloud);border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin:18px 0;font-size:.92rem}
  .folder .fh{font-weight:800;color:var(--navy);margin-bottom:10px;display:flex;align-items:center;gap:9px}
  .folder ul{list-style:none;margin-left:26px}
  .folder li{padding:3px 0;color:var(--ink)}
  .folder li b{color:var(--navy)}
  .folder li span{color:var(--soft);font-size:.85em}
  @media(max-width:640px){.stat-strip{grid-template-columns:1fr 1fr 1fr;gap:8px}.stat b{font-size:1.25rem}
    .endgrid{grid-template-columns:1fr}.stagepath{grid-template-columns:1fr 1fr}}
  @media print{.stat{background:#eee!important;color:#111!important}.stat b{color:#111!important}}
  footer{background:var(--navy);color:rgba(255,255,255,.75);text-align:center;padding:44px 6vw;font-size:.85rem;line-height:1.8;margin-top:56px}
  footer .script{font-family:'Great Vibes',cursive;font-size:1.6rem;color:var(--aqua);display:block;margin-bottom:6px}
  footer a{color:#fff}

  /* ---------- mobile ---------- */
  @media(max-width:640px){
    .split{grid-template-columns:1fr}
    .split .you{border-right:none;border-bottom:1px solid var(--line)}
    ol.steps li{padding-left:46px}
    th,td{padding:9px 10px;font-size:.88rem}
    section{padding:42px 0}
  }

  /* ---------- desktop ---------- */
  @media(min-width:900px){
    /* widths are in rem so they scale up with the fluid base size above */
    main{max-width:76rem}
    /* text stays at a comfortable reading width, centered on the wide page */
    section>p,section>h2,section>h3,section>ul.plain,section>ol.steps,
    .mistake,.checkpoint,.rule-quote,.folder{max-width:56rem;margin-left:auto;margin-right:auto}
    section>.stage-tag{display:block;max-width:56rem;margin-left:auto;margin-right:auto}
    section>ul.plain{padding-left:20px}
    /* visual elements spread across the full width */
    .hero-inner{max-width:60rem}
    h1{font-size:clamp(1.7rem,4vw,3.4rem);max-width:58rem}
    h2{font-size:clamp(1.35rem,2.4vw,2.1rem)}
    section{padding:64px 0}
    .kitgrid{gap:24px}
    .stat-strip{max-width:58rem;margin-left:auto;margin-right:auto}
    .endgrid{grid-template-columns:repeat(3,1fr)}
    .stagepath{grid-template-columns:repeat(6,1fr)}
    .maker .wrap-m{max-width:66rem;grid-template-columns:17.5rem 1fr}
  }

  /* ---------- print ---------- */
  @media print{
    body{font-size:11.5pt;color:#111}
    header,footer{background:#fff!important;color:#111!important}
    header .kicker,footer .script{color:#555!important}
    .sub,.byline{color:#444!important}
    th{background:#eee!important;color:#111!important}
    .toc,section{break-inside:avoid-page}
    .mistake,.split,.checkpoint,.rule-quote{break-inside:avoid}
    a{color:#111;text-decoration:none}
    a[href^="http"]::after{content:" (" attr(href) ")";font-size:.85em;color:#555}
  }

  /* ---------- inner pages ---------- */
  .page-hero{background:linear-gradient(160deg,#14203f,var(--navy) 45%,#0f4a8f);color:#fff;
             padding:118px 6vw 46px;text-align:center}
  .page-hero .ptag{font-size:.74rem;font-weight:800;letter-spacing:.24em;text-transform:uppercase;
                   color:var(--aqua);margin-bottom:10px}
  .page-hero h1{font-size:clamp(1.5rem,3.2vw,2.5rem);margin:0 auto;max-width:56rem}
  .pager{display:grid;grid-template-columns:1fr 1fr;gap:14px;max-width:56rem;margin:44px auto 60px}
  .pager a{border:1.5px solid var(--line);border-radius:12px;padding:14px 16px;text-decoration:none;
           background:#fff;display:block}
  .pager a:hover{border-color:var(--columbia)}
  .pager .lbl{display:block;font-size:.72rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase;color:var(--coral)}
  .pager .ttl{display:block;font-weight:700;color:var(--navy);margin-top:4px;font-size:.95rem}
  .pager a.next{text-align:right}
  .toc-extra{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:12px}
  .toc-extra a{display:block;border:1.5px solid var(--line);border-radius:12px;padding:14px 16px;
               text-decoration:none;background:#fff;font-weight:700;color:var(--navy);font-size:.9rem;line-height:1.5}
  .toc-extra a:hover{border-color:var(--columbia)}
  .toc-extra a span{display:block;color:var(--coral);font-size:.72rem;font-weight:800;
                    letter-spacing:.16em;text-transform:uppercase;margin-bottom:4px}
  @media(max-width:640px){.toc-extra{grid-template-columns:1fr}.pager{grid-template-columns:1fr}}