:root{--primario: #0f766e;--primario-osc: #115e59;--fondo: #f8fafc;--tarjeta: #ffffff;--texto: #0f172a;--texto-suave: #64748b;--borde: #e2e8f0;--peligro: #dc2626;--ok: #16a34a;--aviso: #d97706}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,sans-serif;background:var(--fondo);color:var(--texto)}a{color:var(--primario);text-decoration:none}button{cursor:pointer;border:none;border-radius:8px;padding:8px 16px;font-size:14px;font-weight:600;background:var(--primario);color:#fff}button:hover{background:var(--primario-osc)}button.secundario{background:#fff;color:var(--texto);border:1px solid var(--borde)}button.peligro{background:var(--peligro)}button:disabled{opacity:.5;cursor:not-allowed}input,select,textarea{width:100%;padding:8px 10px;border:1px solid var(--borde);border-radius:8px;font-size:14px;background:#fff}label{display:block;font-size:12px;font-weight:600;color:var(--texto-suave);margin:10px 0 4px}.tarjeta{background:var(--tarjeta);border:1px solid var(--borde);border-radius:12px;padding:20px}.layout{display:flex;min-height:100vh}.nav{width:220px;background:#0f172a;color:#cbd5e1;padding:20px 12px;flex-shrink:0}.nav h2{color:#fff;font-size:16px;padding:0 10px}.nav a{display:block;color:#cbd5e1;padding:9px 10px;border-radius:8px;margin:2px 0;font-size:14px}.nav a.activo,.nav a:hover{background:#1e293b;color:#fff}.nav .candado{opacity:.45}.contenido{flex:1;padding:28px;max-width:1100px}table{width:100%;border-collapse:collapse;font-size:14px}th{text-align:left;font-size:12px;color:var(--texto-suave);border-bottom:2px solid var(--borde);padding:8px}td{padding:8px;border-bottom:1px solid var(--borde)}.pill{display:inline-block;padding:2px 10px;border-radius:999px;font-size:12px;font-weight:600}.pill.pendiente{background:#fef3c7;color:#92400e}.pill.aprobada,.pill.firmado,.pill.ok{background:#dcfce7;color:#166534}.pill.rechazada,.pill.anulada,.pill.rechazado{background:#fee2e2;color:#991b1b}.pill.enviado,.pill.abierto,.pill.codigo{background:#e0f2fe;color:#075985}.fila{display:flex;gap:12px}.fila>*{flex:1}.error{color:var(--peligro);font-size:13px;margin:8px 0}.exito{color:var(--ok);font-size:13px;margin:8px 0}.centro{max-width:440px;margin:8vh auto}h1{font-size:22px}h3{font-size:16px}.kpis{display:flex;gap:14px;margin-bottom:20px}.kpi{flex:1;background:#fff;border:1px solid var(--borde);border-radius:12px;padding:16px}.kpi .num{font-size:26px;font-weight:700;color:var(--primario)}.kpi .lbl{font-size:12px;color:var(--texto-suave)}canvas.firma{border:1px dashed var(--borde);border-radius:8px;background:#fff;touch-action:none;width:100%}