* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, sans-serif; background: #f3f5f9; color: #1b2433; }
header { display: flex; align-items: center; gap: 16px; padding: 12px 20px; background: #0f1b2d; color: #fff; }
header h1 { font-size: 1.1rem; margin: 0; }
header .derecha { margin-left: auto; display: flex; gap: 14px; align-items: center; }
header a { color: #fff; }
main { padding: 16px 20px; }
button { padding: 7px 12px; border: 0; border-radius: 6px; background: #1f6feb; color: #fff; cursor: pointer; font-size: .9rem; }
button.sec { background: #6b778c; }
button.peligro { background: #c0392b; }
button:disabled { opacity: .5; cursor: default; }
.filtro { display: inline-block; margin-bottom: 12px; font-size: .9rem; }
.tabla-contenedor { overflow-x: auto; background: #fff; border-radius: 8px; }
table { border-collapse: collapse; width: 100%; font-size: .9rem; }
th, td { padding: 9px 10px; text-align: left; border-bottom: 1px solid #e3e8f0; white-space: nowrap; }
th { background: #eef1f6; }
td.vacio { text-align: center; color: #6b778c; }
td.acciones { display: flex; gap: 6px; }
.badge { padding: 2px 8px; border-radius: 10px; font-size: .8rem; }
.badge.activo { background: #e6f4ea; color: #1e5b2f; }
.badge.pendiente { background: #fff4d6; color: #7a5a00; }
.badge.inactivo { background: #e8eaed; color: #444; }
.aviso { margin-bottom: 12px; padding: 9px; border-radius: 6px; background: #fde8e8; color: #9b1c1c; }
dialog { border: 0; border-radius: 10px; padding: 20px; width: min(420px, 92vw); }
dialog::backdrop { background: rgba(0, 0, 0, .5); }
dialog h2 { margin: 0 0 10px; font-size: 1.05rem; }
dialog label { display: block; margin-top: 10px; font-size: .85rem; font-weight: 600; }
dialog input, dialog select { display: block; width: 100%; margin-top: 4px; padding: 8px; border: 1px solid #b9c2d0; border-radius: 6px; font-size: .95rem; }
.error { margin-top: 12px; padding: 8px; border-radius: 6px; background: #fde8e8; color: #9b1c1c; font-size: .9rem; }
.botones { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; }
.firma-prev { max-height: 90px; max-width: 260px; background: #fff; padding: 4px; }