/* Paperwin shared styles — zero external dependencies, system font stack */
:root{
  --accent:#4f46e5;
  --accent-dark:#3d37c9;
  --accent-soft:#eef0fe;
  --ink:#14121f;
  --muted:#5c5a6b;
  --line:#e6e5ef;
  --bg:#ffffff;
  --bg-soft:#f7f7fb;
  --card:#ffffff;
  --radius:14px;
  --shadow:0 10px 30px rgba(20,18,31,.08);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);
  line-height:1.55;font-size:16px;
}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1040px;margin:0 auto;padding:0 20px}
.topbar{
  border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:50;
}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;height:62px}
.brand{font-weight:800;font-size:20px;letter-spacing:-.5px;color:var(--ink)}
.brand .dot{color:var(--accent)}
.nav a{margin-left:18px;color:var(--muted);font-size:14px;font-weight:600}
.nav a.cta{color:#fff;background:var(--accent);padding:9px 16px;border-radius:10px}
.nav a.cta:hover{background:var(--accent-dark);text-decoration:none}
.hero{padding:88px 0 64px;text-align:center}
.hero h1{font-size:clamp(34px,5vw,58px);line-height:1.08;letter-spacing:-1.5px;margin:0 0 16px}
.hero h1 .hl{color:var(--accent)}
.hero p.lede{font-size:19px;color:var(--muted);max-width:640px;margin:0 auto 32px}
.btn-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.btn{
  display:inline-block;padding:14px 26px;border-radius:12px;font-weight:700;font-size:16px;
  border:1px solid transparent;cursor:pointer;transition:transform .06s ease, background .15s;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark);text-decoration:none}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);text-decoration:none}
.btn-block{width:100%;text-align:center}
.btn:disabled{opacity:.5;cursor:not-allowed}
.privacy-strip{
  display:inline-flex;align-items:center;gap:8px;margin-top:26px;font-size:13.5px;color:var(--muted);
  background:var(--bg-soft);border:1px solid var(--line);border-radius:999px;padding:8px 16px;
}
.section{padding:64px 0}
.section.alt{background:var(--bg-soft)}
.section h2{font-size:30px;letter-spacing:-.8px;margin:0 0 10px;text-align:center}
.section p.sub{text-align:center;color:var(--muted);max-width:620px;margin:0 auto 36px}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.step{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.step .num{
  width:38px;height:38px;border-radius:50%;background:var(--accent-soft);color:var(--accent);
  font-weight:800;display:flex;align-items:center;justify-content:center;margin-bottom:14px
}
.step h3{margin:0 0 8px;font-size:18px}
.step p{margin:0;color:var(--muted);font-size:15px}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.card h3{margin:0 0 8px}
.card p{margin:0 0 16px;color:var(--muted);font-size:15px}
.card .tag{display:inline-block;font-size:12px;font-weight:700;color:var(--accent);background:var(--accent-soft);padding:4px 10px;border-radius:999px;margin-bottom:12px}
.card .tag.premium{background:#fff7e6;color:#a06a00}
.mini-proposal{border:1px solid var(--line);border-radius:12px;overflow:hidden;font-size:14px}
.mini-proposal .mp-head{padding:18px 20px;border-bottom:4px solid var(--accent)}
.mini-proposal .mp-body{padding:18px 20px}
.mini-proposal .mp-body h4{margin:16px 0 6px;font-size:14px;color:var(--muted);text-transform:uppercase;letter-spacing:.6px}
.mini-proposal .mp-body h4:first-child{margin-top:0}
.mini-proposal .mp-body p,.mini-proposal .mp-body li{margin:4px 0}
.mini-proposal .mp-body ul{padding-left:18px;margin:4px 0}
.price-box{
  max-width:480px;margin:0 auto;background:#fff;border:2px solid var(--accent);border-radius:18px;
  padding:36px;box-shadow:var(--shadow);text-align:center
}
.price-box .amount{font-size:52px;font-weight:800;letter-spacing:-2px;margin:6px 0}
.price-box .amount small{font-size:16px;font-weight:600;color:var(--muted);letter-spacing:0}
.checklist{list-style:none;padding:0;margin:22px 0;text-align:left}
.checklist li{padding:8px 0 8px 30px;position:relative;font-size:15.5px}
.checklist li::before{content:"✓";position:absolute;left:4px;color:var(--accent);font-weight:800}
.note{font-size:13.5px;color:var(--muted);text-align:center;margin-top:14px}
.faq{max-width:720px;margin:0 auto}
.faq details{border:1px solid var(--line);border-radius:12px;padding:16px 20px;margin-bottom:10px;background:#fff}
.faq summary{font-weight:700;cursor:pointer;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq details p{color:var(--muted);margin:10px 0 2px;font-size:15px}
footer{border-top:1px solid var(--line);padding:32px 0;color:var(--muted);font-size:14px}
footer .wrap{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
/* Demo section */
.demo-grid{display:grid;grid-template-columns:340px 1fr;gap:24px;align-items:start}
.demo-form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;font-weight:700;margin-bottom:6px;color:var(--muted);text-transform:uppercase;letter-spacing:.5px}
.field input,.field select,.field textarea{
  width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:10px;font:inherit;font-size:15px;
}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--accent);border-color:var(--accent)}
.field .hint{font-size:12.5px;color:var(--muted);margin-top:5px}
/* Wizard layout */
.wizard{display:grid;grid-template-columns:400px 1fr;gap:0;min-height:calc(100vh - 62px)}
.wizard-side{background:var(--bg-soft);border-right:1px solid var(--line);padding:28px 24px;overflow-y:auto}
.wizard-side h1{font-size:22px;letter-spacing:-.5px;margin:0 0 4px}
.wizard-side .stepcount{font-size:13px;color:var(--muted);margin-bottom:18px}
.q{display:none}
.q.active{display:block;animation:fade .2s ease}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.q h2{font-size:19px;margin:0 0 6px}
.q p.desc{color:var(--muted);font-size:14px;margin:0 0 16px}
.qnav{display:flex;justify-content:space-between;margin-top:22px;gap:10px}
.qnav .btn{padding:11px 20px;font-size:14.5px}
.progress{height:6px;background:var(--line);border-radius:99px;overflow:hidden;margin-bottom:20px}
.progress i{display:block;height:100%;background:var(--accent);border-radius:99px;transition:width .25s}
.row-item{display:flex;gap:8px;margin-bottom:8px}
.row-item input{flex:1;padding:10px 12px;border:1px solid var(--line);border-radius:10px;font:inherit;font-size:14.5px}
.row-item button{border:1px solid var(--line);background:#fff;border-radius:10px;padding:0 12px;cursor:pointer;font-size:16px;color:var(--muted)}
.row-item button:hover{border-color:#d66;color:#d66}
.add-row{background:none;border:1px dashed var(--line);color:var(--accent);font-weight:700;width:100%;padding:10px;border-radius:10px;cursor:pointer;font-size:14px}
.add-row:hover{border-color:var(--accent)}
.toggle-row{display:flex;align-items:center;justify-content:space-between;padding:11px 0;border-bottom:1px solid var(--line);font-size:15px}
.toggle-row input[type=number]{width:74px;padding:8px;border:1px solid var(--line);border-radius:8px;font:inherit}
.tier-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px}
.tier-grid .field{margin-bottom:6px}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px;padding-top:18px;border-top:1px solid var(--line)}
.toolbar .btn{padding:10px 16px;font-size:14px}
.preview-pane{padding:36px;overflow-y:auto;background:#e9e9f0}
.paper{background:#fff;max-width:760px;margin:0 auto;box-shadow:var(--shadow);border-radius:6px;overflow:hidden}
/* Proposal document */
.doc{padding:56px 60px;font-size:14.5px;color:var(--ink)}
.doc-head{display:flex;justify-content:space-between;align-items:flex-start;border-bottom:5px solid var(--accent);padding-bottom:22px;margin-bottom:28px}
.doc-head .from h2{margin:0;font-size:22px;letter-spacing:-.5px}
.doc-head .from p{margin:4px 0 0;color:var(--muted);font-size:13px}
.doc-head .logo img{max-height:64px;max-width:160px}
.doc-title{font-size:32px;letter-spacing:-1px;margin:0 0 6px}
.doc-sub{color:var(--muted);margin:0 0 28px}
.doc h3.sec{font-size:13px;text-transform:uppercase;letter-spacing:1px;color:var(--accent);margin:30px 0 10px;border-bottom:1px solid var(--line);padding-bottom:6px}
.doc p{margin:8px 0}
.doc ul{margin:8px 0;padding-left:20px}
.doc li{margin:4px 0}
.tier-table{width:100%;border-collapse:collapse;margin-top:8px;font-size:14px}
.tier-table th{background:var(--accent-soft);color:var(--ink);text-align:left;padding:10px 12px;font-size:13px}
.tier-table td{border-top:1px solid var(--line);padding:10px 12px;vertical-align:top}
.tier-table .best{background:#f6f5ff}
.tier-table .best td:first-child{border-left:3px solid var(--accent)}
.sig-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin-top:20px}
.sig-line{border-top:1px solid var(--ink);margin-top:44px;padding-top:6px;font-size:13px;color:var(--muted)}
.doc-foot{margin-top:36px;padding-top:14px;border-top:1px solid var(--line);font-size:12px;color:var(--muted);display:flex;justify-content:space-between}
.doc-foot .demo-mark{font-size:11px;opacity:.75}
/* Checkout */
.checkout-grid{display:grid;grid-template-columns:1fr 380px;gap:28px;align-items:start;padding:48px 0}
.order-card{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.order-card h3{margin:0 0 14px}
.order-line{display:flex;justify-content:space-between;padding:9px 0;border-bottom:1px solid var(--line);font-size:15px}
.order-line.total{border-bottom:none;font-weight:800;font-size:18px;padding-top:14px}
.addon{display:flex;gap:10px;align-items:flex-start;margin-top:16px;padding:14px;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer}
.addon input{margin-top:4px}
.addon strong{display:block;font-size:15px}
.addon span{font-size:13.5px;color:var(--muted)}
.pay-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.pay-card h2{margin:0 0 18px;font-size:22px}
.pay-card .field input{font-variant-numeric:tabular-nums}
.secure-note{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-top:14px;justify-content:center}
.error-box{display:none;background:#fdecec;border:1px solid #f5b5b5;color:#a33232;border-radius:10px;padding:12px 14px;font-size:14px;margin-bottom:14px}
.error-box.show{display:block}
.processing{display:none;text-align:center;padding:40px 0}
.processing.show{display:block}
.spinner{width:40px;height:40px;border:4px solid var(--line);border-top-color:var(--accent);border-radius:50%;margin:0 auto 16px;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.key-box{background:var(--bg-soft);border:2px dashed var(--accent);border-radius:12px;padding:20px;text-align:center;margin:20px 0}
.key-box code{font-size:22px;font-weight:800;letter-spacing:2px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.copy-hint{font-size:12.5px;color:var(--muted);margin-top:8px}
.success-hero{text-align:center;padding:72px 0 40px}
.success-hero .tick{width:72px;height:72px;border-radius:50%;background:#e7f8ee;color:#178a4c;font-size:38px;display:flex;align-items:center;justify-content:center;margin:0 auto 20px;font-weight:800}
.badge{display:inline-block;background:var(--accent-soft);color:var(--accent);font-weight:700;font-size:12.5px;padding:5px 12px;border-radius:999px;margin-bottom:10px}
@media (max-width:900px){
  .steps,.cards{grid-template-columns:1fr}
  .demo-grid,.checkout-grid{grid-template-columns:1fr}
  .wizard{grid-template-columns:1fr}
  .wizard-side{border-right:none;border-bottom:1px solid var(--line)}
  .doc{padding:32px 26px}
  .tier-grid{grid-template-columns:1fr}
}
@media print{
  body{background:#fff}
  .no-print,.topbar,.wizard-side,.toolbar,.preview-pane>*,.preview-pane{background:none!important;box-shadow:none!important;padding:0!important;margin:0!important;display:none!important}
  .wizard{display:block;min-height:0}
  .preview-pane{display:block!important;padding:0!important;overflow:visible}
  .preview-pane>*{display:none!important}
  .paper{box-shadow:none;max-width:none;margin:0;border-radius:0}
  #proposalDoc{display:block!important}
  .doc{padding:0}
  @page{margin:18mm 16mm}
}