:root{--navy:#12294d;--navy-2:#1d3d6f;--ink:#1c2333;--muted:#5b6473;--line:#e3e7ee;--bg:#f4f6f9;--card:#fff;--ok:#0f7a3f;--warn:#b45309;--bad:#b91c1c;--accent:#0f62fe;--r:12px}
*{box-sizing:border-box}html,body{margin:0;padding:0}
body{font:16px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg);-webkit-text-size-adjust:100%}
a{color:var(--accent)}button,input,textarea,select{font:inherit}
.topbar{background:var(--navy);color:#fff;padding:14px 18px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.topbar .brand{font-weight:700;letter-spacing:.2px;font-size:17px}.topbar .brand small{opacity:.75;font-weight:400;margin-left:8px}
.wrap{max-width:820px;margin:0 auto;padding:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:20px;margin-bottom:16px}
h1{font-size:22px;margin:0 0 6px}h2{font-size:18px;margin:0 0 10px}p{margin:8px 0}.muted{color:var(--muted)}.small{font-size:13px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--navy);color:#fff;border:0;border-radius:10px;padding:13px 20px;font-weight:600;cursor:pointer;text-decoration:none;min-height:46px}
.btn:hover{background:var(--navy-2)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn.secondary{background:#fff;color:var(--navy);border:1px solid var(--line)}.btn.danger{background:#fff;color:var(--bad);border:1px solid #f3c2c2}.btn.block{width:100%}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.grow{flex:1}
label.field{display:block;margin:10px 0}label.field span{display:block;font-size:13px;color:var(--muted);margin-bottom:4px}
input[type=text],input[type=email],input[type=password],input[type=number],textarea,select{width:100%;padding:12px;border:1px solid var(--line);border-radius:8px;font-size:16px;background:#fff}
input.code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:26px;letter-spacing:10px;text-align:center}
.check{display:flex;gap:12px;align-items:flex-start;padding:12px;border:1px solid var(--line);border-radius:8px;margin:8px 0;cursor:pointer}.check input{width:22px;height:22px;margin-top:2px;flex:none}
.alert{padding:12px 14px;border-radius:8px;margin:10px 0;font-size:14px}.alert.err{background:#fef2f2;color:#991b1b;border:1px solid #fecaca}.alert.ok{background:#ecfdf5;color:#065f46;border:1px solid #a7f3d0}.alert.info{background:#eff6ff;color:#1e3a8a;border:1px solid #bfdbfe}
.steps{display:flex;gap:6px;margin:0 0 16px;font-size:12px;color:var(--muted)}.steps span{flex:1;text-align:center;padding:6px 2px;border-bottom:3px solid var(--line)}.steps span.on{color:var(--navy);border-color:var(--navy);font-weight:600}.steps span.done{border-color:var(--ok);color:var(--ok)}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px;word-break:break-all}
.badge{display:inline-block;padding:2px 9px;border-radius:999px;font-size:12px;font-weight:600;background:#eef2f7;color:var(--navy)}
.badge.ok{background:#ecfdf5;color:var(--ok)}.badge.warn{background:#fffbeb;color:var(--warn)}.badge.bad{background:#fef2f2;color:var(--bad)}
.viewer{border:1px solid var(--line);border-radius:10px;background:#e9ecf1;height:min(70vh,760px);overflow:auto;padding:10px}.viewer canvas{display:block;margin:0 auto 10px;max-width:100%;height:auto;box-shadow:0 1px 4px rgba(0,0,0,.15);background:#fff}
.sigpad{border:1px dashed #9aa4b2;border-radius:10px;background:#fff;touch-action:none;width:100%;height:180px;display:block}
.tabs{display:flex;gap:6px;margin:10px 0}.tabs button{background:#fff;border:1px solid var(--line);border-radius:8px;padding:8px 12px;cursor:pointer}.tabs button.on{background:var(--navy);color:#fff;border-color:var(--navy)}
.kv{display:grid;grid-template-columns:150px 1fr;gap:6px 12px;font-size:14px}.kv dt{color:var(--muted)}.kv dd{margin:0;word-break:break-word}
table{width:100%;border-collapse:collapse;font-size:14px}th,td{text-align:left;padding:9px 8px;border-bottom:1px solid var(--line);vertical-align:top}th{color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.3px}
tr.click{cursor:pointer}tr.click:hover{background:#f8fafc}
.footer{color:var(--muted);font-size:12px;text-align:center;padding:20px}
.center{text-align:center}.tick{font-size:44px;color:var(--ok)}
@media (max-width:600px){.wrap{padding:12px}.card{padding:16px;border-radius:10px}.kv{grid-template-columns:1fr}.kv dt{margin-top:6px}h1{font-size:20px}}