/* Red-Orange Color Scheme */
        :root {
            --primary-red-orange: #FF4500;
            --primary-dark-red-orange: #E03E00;
            --body-bg: #f8f9fa;
        }

        body {
            display: flex;
            flex-direction: column;
            min-height: 100vh;
            background-color: var(--body-bg);
        }

        .navbar {
            background-color: var(--primary-red-orange);
        }

        .navbar-brand {
            color: #fff !important;
            font-weight: bold;
            display: flex;
            align-items: center;
        }

        .navbar-brand:hover {
            color: #f0f0f0 !important;
        }

        /* You can replace this with your actual logo */
        .logo-placeholder {
            width: 30px;
            height: 30px;
            background-color: #fff;
            border-radius: 5px;
            margin-right: 10px;
            /* Simple chat bubble icon */
            background-image: url('data:image/svg+xml;charset=UTF-8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="%23FF4500"><path d="M20 2H4c-1.1 0-2 .9-2 2v18l4-4h14c1.1 0 2-.9 2-2V4c0-1.1-.9-2-2-2z"/></svg>');
            background-size: 60%;
            background-position: center;
            background-repeat: no-repeat;
        }

        .nav-link {
            color: #fff !important;
        }

        .nav-link:hover, .nav-link.active {
            color: #f0f0f0 !important;
            text-decoration: underline;
        }

        .navbar-toggler {
            border-color: rgba(255, 255, 255, 0.5);
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.8%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        main {
            flex: 1;
        }

        footer {
            background-color: #e9ecef;
            padding: 1rem 0;
            font-size: 0.9rem;
            color: #6c757d;
        }