:root{--bg:#f6f7f9;--card:#fff;--ink:#1c2230;--muted:#667085;--line:#e3e6ec;--brand:#1f5eff;--brand-d:#1747c4;--ok:#0f8a4b;--warn:#b26a00;--bad:#c0392b}
@media (prefers-color-scheme:dark){:root{--bg:#10131a;--card:#181c26;--ink:#e8ebf2;--muted:#9aa3b5;--line:#2a3040;--brand:#5b8bff;--brand-d:#7aa0ff}}
*{box-sizing:border-box}
body{margin:0;font:16px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--ink)}
a{color:var(--brand)}
.top{background:var(--card);border-bottom:1px solid var(--line)}
.top .in{max-width:1000px;margin:0 auto;padding:12px 16px;display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.top .brand{font-weight:700;color:var(--ink);text-decoration:none;margin-right:auto}
.top form{margin:0}
main{max-width:1000px;margin:24px auto;padding:0 16px}
main.narrow{max-width:460px}
main.sign{max-width:760px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px;margin-bottom:16px}
h1{font-size:1.5rem;margin:0 0 16px}h2{font-size:1.1rem;margin:0 0 12px}
label{display:block;font-weight:600;margin:12px 0 4px}
input[type=text],input[type=email],input[type=password],input[type=file],input[type=number],textarea,select{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--ink);font:inherit}
input:focus,textarea:focus,select:focus{outline:2px solid var(--brand);outline-offset:1px}
.btn{display:inline-block;padding:10px 16px;border:0;border-radius:8px;background:var(--brand);color:#fff;font:inherit;font-weight:600;cursor:pointer;text-decoration:none}
.btn:hover{background:var(--brand-d)}
.btn.ghost{background:transparent;color:var(--brand);border:1px solid var(--line)}
.btn.danger{background:var(--bad)}
.btn.sm{padding:6px 10px;font-size:.9rem}
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-size:.8rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}
.badge{display:inline-block;padding:2px 10px;border-radius:999px;font-size:.8rem;font-weight:600;background:var(--line);color:var(--ink)}
.badge.completed,.badge.signed{background:#d8f3e4;color:#0a5c32}
.badge.sent,.badge.in_progress,.badge.sealing,.badge.viewed{background:#dde8ff;color:#143c9e}
.badge.refused,.badge.cancelled,.badge.expired{background:#fbe0dc;color:#8e271b}
.err{background:#fbe0dc;color:#8e271b;border-radius:8px;padding:10px 12px;margin-bottom:12px}
.ok{background:#d8f3e4;color:#0a5c32;border-radius:8px;padding:10px 12px;margin-bottom:12px}
.muted{color:var(--muted)}.right{margin-left:auto}
.row{display:flex;gap:12px;flex-wrap:wrap}.row>*{flex:1 1 200px}
.signer{border:1px solid var(--line);border-radius:8px;padding:12px;margin-bottom:10px}
.mono{font-family:ui-monospace,Consolas,monospace;font-size:.85rem;word-break:break-all}
iframe.pdf{width:100%;height:60vh;min-height:360px;border:1px solid var(--line);border-radius:8px;background:#fff}
canvas.pad{width:100%;height:160px;border:1px dashed var(--muted);border-radius:8px;background:#fff;touch-action:none}
@media (max-width:600px){th,td{padding:8px 4px;font-size:.92rem}}