/* Estilos personalizados para complementar Bootstrap */
        body {
            /* Degradado de azul a blanco */
            background: linear-gradient(135deg, #0d6efd 0%, #f8f9fa 100%);
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        .login-container {
            background-color: #ffffff;
            border-radius: 1rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
            padding: 2.5rem;
            width: 100%;
            max-width: 400px;
        }

        .brand-logo {
            color: #0d6efd;
            font-size: 2.5rem;
            text-align: center;
            margin-bottom: 0.5rem;
        }

        .login-title {
            color: #333;
            font-weight: 600;
            text-align: center;
            margin-bottom: 2rem;
        }

        /* Estilización de los inputs al hacer focus */
        .form-control:focus {
            border-color: #0d6efd;
            box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
        }

        .btn-primary {
            background-color: #0d6efd;
            border: none;
            border-radius: 0.5rem;
            padding: 0.75rem;
            font-weight: 600;
            transition: all 0.3s ease;
        }

        .btn-primary:hover {
            background-color: #0b5ed7;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(13, 110, 253, 0.3);
        }

        .text-muted-custom {
            color: #6c757d;
            font-size: 0.9rem;
        }