:root{
  --brand:#0e7490;
  --brand-dark:#0a5b73;
  --brand2:#10b981;
  --ink:#1c1917;
  --muted:#6f6a63;
  --bg:#faf9f6;
  --surface:#ffffff;
  --surface2:#f4f2ed;
  --line:rgba(28,25,23,.12);
  --line-soft:rgba(28,25,23,.06);
  --radius:14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text","Segoe UI",Inter,Roboto,"Helvetica Neue",Arial,sans-serif;
  font-size:1.05rem;
  line-height:1.6;
}
.wrap{max-width:960px;margin:0 auto;padding:0 1.25rem}
a{color:var(--brand)}
[hidden]{display:none!important}
.hidden{display:none!important}

/* header */
.topbar{background:var(--brand);color:#fff}
.topbar-in{display:flex;justify-content:space-between;align-items:center;padding:.9rem 1.25rem}
.brandmark{font-weight:750;font-size:1.25rem;letter-spacing:-.02em}
.brandmark span{color:#a5f3fc}
.toplink{color:#fff;text-decoration:none;font-size:.92rem;opacity:.92}
.toplink:hover{text-decoration:underline;opacity:1}

/* hero */
.hero{padding:2.6rem 0 1.4rem}
.hero h1{
  font-size:clamp(2rem,4.6vw,3.1rem);
  line-height:1.12;
  letter-spacing:-.03em;
  font-weight:750;
  margin:0 0 1rem;
  text-wrap:balance;
}
.lede{font-size:1.14rem;color:var(--ink);max-width:46rem;text-wrap:pretty;margin:0}
.privacy-note{
  border-left:4px solid var(--brand2);
  background:var(--surface);
  border-radius:0 10px 10px 0;
  padding:.8rem 1.1rem;
  margin:1.2rem 0 0;
  max-width:46rem;
  font-size:1rem;
  text-wrap:pretty;
}

/* cards */
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:1.6rem clamp(1.1rem,3vw,2rem);
  margin:1.4rem 0;
  box-shadow:0 1px 2px rgba(28,25,23,.05),0 8px 24px rgba(28,25,23,.05);
}
.card h2{font-size:clamp(1.3rem,2.4vw,1.6rem);letter-spacing:-.02em;margin:.2rem 0 .6rem;text-wrap:balance}
.card h2.step-gap{margin-top:1.8rem}
.sub{color:var(--muted);font-size:.98rem;margin:0 0 1rem;text-wrap:pretty}
.hint{color:var(--muted);font-size:.94rem;margin:1rem 0 0;text-wrap:pretty}
.form-msg{color:#0a5b73;font-size:.95rem;margin:.8rem 0 0;min-height:1.2em}

/* buttons */
.btn{
  appearance:none;font:inherit;font-size:.95rem;font-weight:650;cursor:pointer;
  padding:.6rem 1.15rem;border-radius:999px;border:1px solid var(--brand);
  background:#fff;color:var(--brand);
}
.btn:hover{background:color-mix(in srgb,var(--brand) 7%,#fff)}
.btn.primary{background:var(--brand);color:#fff}
.btn.primary:hover{background:var(--brand-dark)}
.btn:disabled{opacity:.55;cursor:wait}
.btn-row{display:flex;flex-wrap:wrap;gap:.55rem}

/* upload */
.drop{
  border:2px dashed var(--line);
  border-radius:12px;
  padding:2rem 1.2rem;
  text-align:center;
  cursor:pointer;
  background:var(--surface2);
  transition:border-color .15s ease,background .15s ease;
}
.drop:hover,.drop.drag{border-color:var(--brand);background:color-mix(in srgb,var(--brand) 6%,#fff)}
.drop:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.drop-big{font-size:1.15rem;font-weight:700;margin:0 0 .3rem}
.drop-small{color:var(--muted);font-size:.92rem;margin:0}

/* fields */
.field{display:block;max-width:26rem}
.field-label{display:block;font-weight:650;font-size:.93rem;margin-bottom:.4rem}
.field select{
  width:100%;font:inherit;font-size:1rem;color:var(--ink);
  padding:.6rem .8rem;border:1px solid var(--line);border-radius:10px;background:#fff;
}
.field select:focus{outline:2px solid var(--brand);outline-offset:1px;border-color:var(--brand)}

/* editor */
.frame-wrap{display:flex;justify-content:center;margin:.6rem 0 1rem}
#frame{
  width:min(540px,100%);
  height:auto;
  border:1px solid var(--line);
  border-radius:10px;
  background:#e9e6df;
  touch-action:none;
  cursor:grab;
}
#frame:active{cursor:grabbing}
.controls{display:flex;flex-wrap:wrap;align-items:center;gap:1rem;margin-bottom:1rem}
.zoom-label{display:flex;align-items:center;gap:.6rem;font-weight:650;font-size:.95rem}
.zoom-label input[type=range]{width:180px;accent-color:var(--brand)}
.checks-title{font-size:1.08rem;margin:1.2rem 0 .4rem;letter-spacing:-.01em}
.checks{margin:.2rem 0 .4rem;padding-left:1.2rem}
.checks li{margin-bottom:.4rem;text-wrap:pretty}
.export-row{margin-top:1.2rem}

/* prose */
.prose ul{padding-left:1.2rem;margin:.4rem 0 1rem}
.prose li{margin-bottom:.55rem;text-wrap:pretty}
.prose p{text-wrap:pretty}
.table-scroll{overflow-x:auto;margin:.8rem 0 1.2rem}
.spec-table{border-collapse:collapse;width:100%;min-width:560px;font-size:.96rem}
.spec-table th,.spec-table td{
  border:1px solid var(--line);
  padding:.5rem .7rem;
  text-align:left;
  vertical-align:top;
}
.spec-table th{background:var(--surface2);font-weight:700}

/* footer */
footer{border-top:1px solid var(--line);margin-top:2rem}
.foot-in{padding:1.4rem 1.25rem 2rem;color:var(--muted);font-size:.92rem}

/* email gate modal (PicConvert pattern) */
.pc-modal-backdrop{
  position:fixed;inset:0;background:rgba(7,43,54,.55);z-index:100;
  display:flex;align-items:center;justify-content:center;padding:1rem;
}
.pc-modal-backdrop[hidden]{display:none}
.pc-modal{
  background:var(--surface);color:var(--ink);border-radius:16px;max-width:430px;width:100%;
  padding:1.7rem 1.6rem 1.4rem;position:relative;box-shadow:0 24px 60px rgba(0,0,0,.3);
}
.pc-modal h2{margin:0 2rem .6rem 0;font-size:1.35rem;letter-spacing:-.02em}
.pc-modal p{margin:0 0 1rem;font-size:.98rem}
.pc-modal-close{
  position:absolute;top:.6rem;right:.8rem;border:0;background:transparent;
  font-size:1.6rem;line-height:1;cursor:pointer;color:var(--muted);
}
.pc-modal form{display:flex;gap:.55rem;flex-wrap:wrap}
.pc-modal input[type=email]{
  flex:1 1 200px;font:inherit;font-size:1rem;padding:.62rem .8rem;
  border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);
}
.pc-modal-msg{font-size:.92rem;margin:.7rem 0 0;min-height:1.2em}
.pc-modal-msg.err{color:#b91c1c}
.pc-modal-msg.ok{color:#15803d}
.pc-modal-note{color:var(--muted);font-size:.85rem;margin:.8rem 0 0}

@media (max-width:560px){
  .card{padding:1.2rem 1rem}
  .zoom-label input[type=range]{width:130px}
}

@media (prefers-color-scheme: dark){
  :root{
    --ink:#f4f1ea;--muted:#a8a29e;--bg:#141412;--surface:#1d1c1a;--surface2:#262522;
    --line:rgba(255,255,255,.12);--line-soft:rgba(255,255,255,.06);
  }
  .field select,.pc-modal input[type=email]{background:#262522;color:var(--ink)}
  .btn{background:transparent}
  .btn:hover{background:color-mix(in srgb,var(--brand) 25%,transparent)}
  .privacy-note{background:var(--surface)}
  .drop{background:var(--surface2)}
  .drop:hover,.drop.drag{background:color-mix(in srgb,var(--brand) 18%,transparent)}
  #frame{background:#262522}
  .spec-table th{background:var(--surface2)}
}