:root{--bg:#f4f6f8;--surface:#fff;--text:#17202a;--muted:#65717e;--border:#dce2e8;--primary:#1456a0;--primary-dark:#0e417b;--danger:#b42318;--radius:10px;--shadow:0 8px 24px rgba(23,32,42,.07)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.5 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}.topbar{height:64px;background:#111b27;color:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 max(24px,calc((100% - 1180px)/2));gap:24px}.topbar a,.link-button{color:#fff}.topbar nav{display:flex;align-items:center;gap:22px}.brand{font-size:18px;font-weight:700}.inline-form{display:inline}.link-button{border:0;background:none;font:inherit;cursor:pointer;padding:0}.container{max-width:1180px;margin:0 auto;padding:32px 24px 60px}.page-header{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:24px}.page-header h1{margin:0 0 4px;font-size:30px}.muted{color:var(--muted);margin:0}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px;margin-bottom:24px}.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}.card h2{margin:0 0 14px;font-size:19px}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:24px}.stat{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}.stat span{display:block;color:var(--muted)}.stat strong{display:block;font-size:34px;margin-top:5px}.button{display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--border);border-radius:8px;background:#fff;color:var(--text);padding:9px 14px;font-weight:600;cursor:pointer}.button:hover{text-decoration:none;background:#f8fafc}.button-primary{background:var(--primary);border-color:var(--primary);color:#fff}.button-primary:hover{background:var(--primary-dark)}.button-small{padding:5px 9px;font-size:13px}.table-wrap{overflow:auto;padding:0}.table-wrap table{width:100%;border-collapse:collapse}.table-wrap th,.table-wrap td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--border);vertical-align:top}.table-wrap th{font-size:13px;color:var(--muted);background:#f8fafc}.table-wrap tr:last-child td{border-bottom:0}.badge{display:inline-block;border-radius:999px;background:#e8f1fb;color:#174f88;padding:3px 9px;font-size:12px;font-weight:700}.badge-muted{background:#edf0f2;color:#67717a}.form-card{max-width:700px}.stack{display:grid;gap:18px}.field label{display:block;font-weight:650;margin-bottom:6px}.field input,.field select,.field textarea{width:100%;padding:10px 11px;border:1px solid #bdc7d1;border-radius:7px;background:#fff;font:inherit}.field small{display:block;color:var(--muted);margin-top:5px}.errorlist{color:var(--danger);margin:6px 0 0;padding-left:18px}.form-actions{display:flex;justify-content:flex-end;gap:10px;padding-top:6px}.alert{border-radius:8px;padding:12px 15px;margin-bottom:18px;background:#e8f1fb;border:1px solid #bdd4ec}.alert-error{background:#fef3f2;border-color:#fecdca;color:#912018}.alert-success{background:#ecfdf3;border-color:#abefc6;color:#067647}.definition-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.definition-grid span{display:block;color:var(--muted);font-size:13px}.definition-grid strong,.definition-grid code{display:block;margin-top:5px;word-break:break-word}.definition-grid .wide{grid-column:1/-1}.document-grid{display:grid;grid-template-columns:2fr 1fr;gap:24px}.sign-layout{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(360px,1fr);gap:24px}.preview-card{padding:8px;min-height:650px}.preview-card iframe{width:100%;height:650px;border:0;border-radius:7px;background:#e7ebef}.security-note{font-size:13px;color:var(--muted);background:#f8fafc;border:1px solid var(--border);padding:10px;border-radius:7px}.empty{text-align:center;color:var(--muted);padding:28px!important}code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px;word-break:break-all}.login-page{min-height:100vh;display:grid;place-items:center;padding:24px;background:#111b27}.login-card{width:min(420px,100%);background:#fff;border-radius:12px;padding:32px;box-shadow:0 20px 50px rgba(0,0,0,.25)}.login-card h1{margin:0 0 5px}.login-card input{width:100%;padding:11px;border:1px solid #bdc7d1;border-radius:7px;font:inherit}.login-card label{display:block;font-weight:650;margin-bottom:5px}dl{margin:0}dt{color:var(--muted);font-size:13px;margin-top:14px}dd{margin:3px 0 0}@media(max-width:850px){.stats,.document-grid,.sign-layout{grid-template-columns:1fr}.topbar{height:auto;padding:16px 20px;align-items:flex-start}.topbar nav{flex-wrap:wrap;gap:12px}.container{padding:24px 16px}.page-header{flex-direction:column}.definition-grid{grid-template-columns:1fr}.definition-grid .wide{grid-column:auto}.preview-card,.preview-card iframe{min-height:480px;height:480px}}

/* Selector visual para el estampado de la firma */
.pdf-signature-viewer [hidden],.placement-summary[hidden]{display:none!important}
.interactive-preview{min-width:0}.pdf-toolbar{display:flex;align-items:center;justify-content:center;gap:14px;margin-bottom:12px;padding:4px}.pdf-toolbar span{color:var(--muted);white-space:nowrap}.pdf-signature-viewer{min-height:560px;display:grid;place-items:center;overflow:auto;background:#e7ebef;border:1px solid var(--border);border-radius:8px;padding:12px}.pdf-loading{padding:24px;color:var(--muted);text-align:center}.pdf-loading-error{color:var(--danger);max-width:520px}.pdf-canvas-wrapper{position:relative;flex:none;cursor:crosshair;box-shadow:0 8px 24px rgba(0,0,0,.16);outline:none;background:#fff}.pdf-canvas-wrapper:focus-visible{outline:3px solid rgba(20,86,160,.35);outline-offset:3px}.pdf-canvas-wrapper canvas{display:block;max-width:none}.signature-marker{position:absolute;display:flex;flex-direction:column;align-items:center;justify-content:center;overflow:hidden;border:2px solid #1456a0;border-radius:4px;background:rgba(232,241,251,.88);color:#0e417b;text-align:center;pointer-events:none;box-shadow:0 2px 9px rgba(14,65,123,.2)}.signature-marker strong{font-size:13px;line-height:1.2}.signature-marker span{font-size:10px;line-height:1.2}.placement-status{margin:14px 0 4px;padding:10px 12px;border:1px dashed #9eabb7;border-radius:7px;text-align:center;font-weight:650;background:#f8fafc}.placement-status-selected{border-style:solid;border-color:#75c593;background:#ecfdf3;color:#067647}.preview-help{text-align:center;font-size:13px}.placement-summary{display:flex;align-items:center;gap:10px;padding:11px 12px;border:1px solid #abefc6;border-radius:8px;background:#ecfdf3;color:#067647}.placement-summary div{display:flex;flex-direction:column}.placement-summary span{font-size:13px}.placement-check{display:grid!important;place-items:center;flex:0 0 28px;width:28px;height:28px;border-radius:50%;background:#067647;color:#fff;font-size:16px!important;font-weight:800}.signing-form-card{align-self:start}.button:disabled{cursor:not-allowed;opacity:.55}.pdf-toolbar .button:disabled{background:#f3f5f7}@media(max-width:850px){.pdf-signature-viewer{min-height:420px}.pdf-toolbar{justify-content:space-between;gap:8px}.pdf-toolbar span{font-size:13px}}