:root{--brand:#0b3d91;--bg:#f4f6f9;--card:#fff;--ink:#1b2330;--muted:#6b7280;--line:#e4e8ef;--ok:#157347;--err:#b02a37}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--ink);-webkit-text-size-adjust:100%;line-height:1.45}
.wrap{width:100%;max-width:720px;margin:0 auto;padding:0 16px}
.topbar{background:var(--brand);color:#fff}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;height:54px}
.logo{font-weight:700;font-size:18px;letter-spacing:.2px}
.tag{font-size:12px;opacity:.85}
main.wrap{padding-top:18px;padding-bottom:40px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px;margin:0 0 16px;box-shadow:0 1px 2px rgba(16,24,40,.04)}
h1{font-size:20px;margin:0 0 6px}
h2{font-size:15px;margin:2px 0 12px;color:var(--brand)}
p{margin:0 0 10px}
.muted{color:var(--muted)}
.small{font-size:13px}
label{display:block;font-size:13px;color:var(--muted);margin:0 0 12px}
input[type=text],input[type=email]{display:block;width:100%;margin-top:5px;padding:13px 12px;font-size:16px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink)}
input:focus{outline:2px solid var(--brand);outline-offset:0;border-color:var(--brand)}
.pdfview{width:100%;max-height:60vh;overflow:auto;border:1px solid var(--line);border-radius:10px;background:#eceff4}
.pdfview canvas{display:block;width:100%;height:auto;margin:0 auto 8px;background:#fff;box-shadow:0 1px 4px rgba(0,0,0,.12)}
.sigwrap{position:relative;border:2px dashed #c7cedb;border-radius:12px;background:#fff;touch-action:none}
.sigpad{display:block;width:100%;height:180px;border-radius:12px;touch-action:none}
.clearbtn{position:absolute;top:8px;right:8px;background:#fff;border:1px solid var(--line);border-radius:8px;padding:6px 12px;font-size:13px;color:var(--muted)}
.consent{display:flex;gap:10px;align-items:flex-start;margin:14px 0;font-size:13px;color:var(--ink)}
.consent input{margin-top:3px;width:20px;height:20px;flex:0 0 auto}
.submit{display:block;width:100%;padding:16px;font-size:17px;font-weight:600;color:#fff;background:var(--brand);border:none;border-radius:12px;margin-top:4px}
.submit:disabled{opacity:.45}
.lock{text-align:center;margin-top:12px}
.note h1{color:var(--brand)}
.note.success h1{color:var(--ok)}
.err{background:#fdecee;border-color:#f3c2c7;color:var(--err);font-size:14px}
.foot{color:var(--muted);font-size:12px;text-align:center;padding:10px 16px 30px}
/* admin */
.adminbar{background:#111827;color:#fff;padding:12px 0}
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:.4px}
.badge{display:inline-block;padding:2px 9px;border-radius:999px;font-size:12px;font-weight:600}
.badge.pending{background:#fff4e5;color:#9a5b00}
.badge.signed{background:#e7f6ec;color:var(--ok)}
.linkbox{width:100%;font-size:13px;padding:10px;border:1px solid var(--line);border-radius:8px;font-family:monospace}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.row4{display:grid;grid-template-columns:1fr 1fr 1fr 1fr;gap:10px}
details summary{cursor:pointer;color:var(--brand);font-size:13px;margin:4px 0 10px}
@media(max-width:520px){.row4{grid-template-columns:1fr 1fr}}