:root{--brand: #683dea;--ink: #14121e;--paper: #ffffff;--bg: #f6f4f9;--muted: #6b677a;--line: #e4e0ea;--ok: #0f8a5f;--warn: #b26a00;--radius: 14px}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--bg);color:var(--ink);font:16px/1.45 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-text-size-adjust:100%}a{color:var(--brand)}h1{font-size:1.6rem;line-height:1.2;margin:.25rem 0 .5rem}h2{font-size:1.15rem;margin:0 0 .6rem}h3{font-size:1.05rem;margin:0}p{margin:.35rem 0}.muted{color:var(--muted)}.small{font-size:.85rem}.fine{font-size:.72rem;color:var(--muted);margin-top:.6rem}.center{text-align:center}.eyebrow{font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--brand);font-weight:700;margin:0}.shell{min-height:100vh;display:flex;flex-direction:column}.top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 16px;background:var(--paper);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}.logo{height:32px;max-width:160px;object-fit:contain}.logo-text{font-weight:800;color:var(--brand)}.main{flex:1;width:100%;max-width:820px;margin:0 auto;padding:16px 16px 120px}.hero{padding:8px 0 12px}.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:16px;margin:12px 0}.row{display:flex;align-items:center}.row.between{justify-content:space-between;gap:12px;flex-wrap:wrap}.row.gap{gap:8px}.notice{margin-top:10px;padding:10px 12px;border-radius:10px;background:#eef0ff;color:var(--ink);font-size:.92rem}.notice.warn{background:#fff4e0;color:var(--warn)}.notice.ok{background:#e5f6ef;color:var(--ok)}.btn{appearance:none;border:1px solid var(--brand);background:var(--paper);color:var(--brand);font:inherit;font-weight:700;padding:10px 16px;border-radius:999px;cursor:pointer;min-height:44px}.btn.primary{background:var(--brand);color:#fff}.btn.ghost{border-color:var(--line);color:var(--ink);background:var(--paper);text-decoration:none;display:inline-flex;align-items:center}.btn:disabled{opacity:.5;cursor:default}.pdf{width:100%}.pdf-page{margin:8px 0;box-shadow:0 1px 6px #14121e1f;background:#fff}.pdf-page canvas{display:block;width:100%}.pdf-loading,.pdf-error{padding:24px;text-align:center;color:var(--muted)}.tiers{display:grid;gap:12px;grid-template-columns:1fr}@media (min-width: 720px){.tiers{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}}.tier{border:2px solid var(--line);border-radius:var(--radius);padding:14px;display:flex;flex-direction:column;gap:10px}.tier.on{border-color:var(--brand);box-shadow:0 0 0 3px #683dea1f}.tier-head{display:flex;justify-content:space-between;gap:10px;align-items:flex-start}.price{text-align:right}.monthly{font-weight:800;color:var(--brand);white-space:nowrap}.cash{font-weight:800;font-size:1.1rem;white-space:nowrap}.tier .btn{width:100%;margin-top:auto}.upgrade{display:flex;align-items:center;gap:12px;padding:12px 0;border-top:1px solid var(--line);cursor:pointer}.upgrade:first-of-type{border-top:0}.upgrade input{width:22px;height:22px;accent-color:var(--brand);flex:0 0 auto}.upgrade-text{flex:1;display:flex;flex-direction:column;min-width:0}.upgrade-name{font-weight:600}.upgrade-price{font-weight:700;white-space:nowrap}.upgrade.included .upgrade-price{color:var(--brand)}.sign-frame{width:100%;height:min(80vh,900px);border:1px solid var(--line);border-radius:10px;background:#fff;margin-top:10px}.foot{padding:20px 0 8px;text-align:center}.badges{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-bottom:8px}.badges img{height:44px;object-fit:contain}.sticky{position:fixed;left:0;right:0;bottom:0;background:var(--paper);border-top:1px solid var(--line);padding:10px 16px calc(10px + env(safe-area-inset-bottom));z-index:10}.sticky-inner{max-width:820px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:12px}.sticky-text{min-width:0}.sticky-total{font-weight:800;font-size:1.25rem}