body.offer-body {
            font-family: 'Segoe UI', sans-serif;
            background-color: #f5f7fa;
        }

        h1.offer-heading {
            color: #003366;
        }

        .offer-card {
            background: #fff;
            border-radius: 20px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            overflow: hidden;
        }

        .offer-sidebar {
            background: #e6eef5;
            padding: 20px;
            border-right: 4px solid #003366;
        }

        .offer-sidebar-title {
            color: #003366;
            font-weight: bold;
            margin-bottom: 30px;
        }

        .offer-list-group .list-group-item {
            border: none;
            border-radius: 8px;
            margin-bottom: 10px;
            font-weight: 500;
            cursor: pointer;
        }

        .offer-list-group .active {
            background-color: #003366 !important;
            color: white !important;
        }

        .offer-content {
            padding: 30px;
        }

        .offer-content-title {
            font-weight: 600;
            color: #003366;
            margin-bottom: 20px;
        }

        .offer-text {
            font-size: 15px;
            line-height: 1.8;
            color: #333;
        }