*{box-sizing:border-box}body{font-family:Segoe UI,Arial,sans-serif;background:#f5f6f8;color:#222;margin:0;padding:20px}
.container{max-width:900px;margin:0 auto;background:#fff;padding:24px;border-radius:10px;box-shadow:0 2px 12px rgba(0,0,0,.08)}
h1{font-size:18px;text-align:center;margin:0 0 4px}
.subtitle{text-align:center;color:#666;font-size:13px;margin:0 0 16px}
.subtitle a{color:#0b5fff}
fieldset{border:1px solid #ddd;border-radius:8px;padding:12px 14px;margin:12px 0}
legend{font-weight:600;font-size:13px;padding:0 6px}
label{display:block;font-size:13px;margin:6px 0}
input[type=text],input[type=date],input:not([type]),textarea{width:100%;padding:7px 8px;border:1px solid #ccc;border-radius:6px;margin-top:4px}
input[type=checkbox]{width:auto;margin-right:6px}
input[type=file]{font-size:12px}
.checks{display:grid;grid-template-columns:repeat(4,1fr);gap:4px 12px;margin:8px 0}
@media(max-width:600px){.checks{grid-template-columns:repeat(2,1fr)}}
.firma-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:600px){.firma-grid{grid-template-columns:1fr}}
.firma-box{border:1px solid #e5e7eb;border-radius:8px;padding:10px;background:#fafafa}
.file-label{margin-top:8px}
.firma-preview{max-width:100%;max-height:60px;margin-top:6px;border:1px solid #ddd;border-radius:4px;background:#fff;padding:2px}
.firma-control{display:flex;flex-direction:column;align-items:flex-start;gap:6px}
.btn-del-firma{margin-top:6px;padding:4px 10px;background:#e74c3c;color:#fff;font-size:12px;border:0;border-radius:5px;cursor:pointer;font-weight:600}
.btn-del-firma:hover{background:#c0392b}
.actions{display:flex;gap:10px;align-items:center;margin-top:14px;flex-wrap:wrap}
button{padding:9px 16px;border:0;border-radius:6px;cursor:pointer;font-weight:600}
#btnGenerar{background:#0b5fff;color:#fff}
#btnGenerar:disabled{opacity:.6}
#btnBonito{background:linear-gradient(135deg,#0F4C81,#1E88E5);color:#fff;box-shadow:0 2px 8px rgba(15,76,129,.3)}
#btnBonito:disabled{opacity:.6}
#btnEjemplo{background:#e9eef5}
.link{font-size:13px;color:#0b5fff;text-decoration:none}
#status{font-size:13px;color:#0a7d2e;min-height:18px}
.admin-card{border:1px solid #ddd;border-radius:8px;padding:16px;margin:12px 0;background:#fff}
.sec-header{margin:28px 0 6px;padding:10px 14px;background:#123;color:#fff;border-radius:6px;font-size:15px}
.sec-index{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0}
.sec-index a{background:#eef2f7;border:1px solid #d0d7e0;border-radius:6px;padding:6px 12px;font-size:13px;color:#123;text-decoration:none}
.sec-index a:hover{background:#dbe4ef}
.logo-preview{max-width:200px;max-height:80px;border:1px solid #ddd;border-radius:6px;padding:6px;background:#fff;margin-top:8px}
.admin-check{position:relative;padding-right:18px}
.admin-check .del-x{position:absolute;top:-6px;right:-6px;background:#ff4d4d;color:#fff;border-radius:50%;width:16px;height:16px;display:none;align-items:center;justify-content:center;font-size:10px;line-height:1;cursor:pointer;box-shadow:0 1px 3px rgba(0,0,0,.2)}
.admin-check:hover .del-x{display:flex}

/* Barra de navegación inferior */
.nav-bar{position:fixed;left:0;right:0;bottom:0;background:#123;box-shadow:0 -2px 12px rgba(0,0,0,.25);z-index:1000}
.nav-inner{max-width:900px;margin:0 auto;display:flex;align-items:center;gap:4px;padding:8px 12px;flex-wrap:wrap}
.nav-user{color:#cfd8e6;font-size:13px;margin-right:auto;padding:0 8px}
.nav-link{color:#e8eef7;text-decoration:none;font-size:13px;font-weight:600;padding:8px 12px;border-radius:6px}
.nav-link:hover{background:#1d4f9c}
.nav-link.active{background:#1d4f9c;color:#fff}
.nav-logout{color:#ffb3b3}
.nav-logout:hover{background:#7a1f1f}
body{padding-bottom:64px}