* { box-sizing: border-box; }

body {
    font-family: Arial, Helvetica, sans-serif;
    background: #f2f3f5;
    color: #2b2b2b;
    margin: 0;
}

.cabecera {
    background: #263444;
    color: #fff;
    padding: 14px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.cabecera .marca {
    font-weight: bold;
    font-size: 18px;
}

.cabecera nav a {
    color: #d8dee5;
    text-decoration: none;
    margin-left: 18px;
    font-size: 14px;
}

.cabecera nav a:hover {
    color: #fff;
    text-decoration: underline;
}

.contenedor {
    max-width: 960px;
    margin: 30px auto;
    background: #fff;
    padding: 25px 30px;
    border-radius: 6px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.12);
}

h1 { font-size: 22px; margin-top: 0; }

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
}

th, td {
    text-align: left;
    padding: 8px 10px;
    border-bottom: 1px solid #e4e6ea;
    font-size: 14px;
}

th { background: #f7f8fa; }

tr:hover td { background: #fafbfc; }

.boton, button, input[type=submit] {
    display: inline-block;
    background: #2e7d32;
    color: #fff;
    border: none;
    padding: 9px 16px;
    border-radius: 4px;
    text-decoration: none;
    font-size: 14px;
    cursor: pointer;
}

.boton.secundario, a.enlace-borrar {
    background: #b23b3b;
}

.boton.gris {
    background: #6b7280;
}

form label {
    display: block;
    margin-top: 12px;
    font-size: 13px;
    color: #555;
}

form input[type=text],
form input[type=email],
form input[type=date],
form input[type=datetime-local],
form input[type=password],
form select,
form textarea {
    width: 100%;
    padding: 8px;
    margin-top: 4px;
    border: 1px solid #ccd2d9;
    border-radius: 4px;
    font-size: 14px;
}

form textarea { min-height: 140px; }

.acciones { margin-top: 20px; }

.mensaje-error {
    background: #fdecea;
    color: #a12a2a;
    padding: 10px 14px;
    border-radius: 4px;
    margin-bottom: 15px;
    font-size: 14px;
}

.mensaje-ok {
    background: #e9f7ec;
    color: #1e6b30;
    padding: 10px 14px;
    border-radius: 4px;
    margin-bottom: 15px;
    font-size: 14px;
}

.pantalla-login {
    max-width: 340px;
    margin: 90px auto;
    background: #fff;
    padding: 30px;
    border-radius: 6px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.15);
}

.filtros {
    background: #f7f8fa;
    padding: 15px;
    border-radius: 5px;
    margin-bottom: 15px;
}

.filtros .fila { display: flex; gap: 15px; }
.filtros .fila > div { flex: 1; }

.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 12px;
    background: #e4e6ea;
}
.badge.pendiente { background: #fff3cd; color: #856404; }
.badge.enviado { background: #d4edda; color: #1e6b30; }