body {
    font-family: 'Poppins', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f7fc;
}

.container {
    display: flex;
    max-width: 1200px;
    margin: auto;
    padding: 20px;
    gap: 20px;
}

.sidebar {
    width: 300px;
    min-width: 300px;
    background: #fff;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.search-box {
    padding: 12px;
    width: calc(100% - 24px);
    border: 1px solid #ddd;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 14px;
}

.sidebar ul {
    list-style: none;
    padding: 0;
}

    .sidebar ul li {
        padding: 14px;
        border-left: 4px solid transparent;
        cursor: pointer;
        transition: all 0.3s;
        font-size: 16px;
    }

        .sidebar ul li:hover,
        .sidebar ul li.active {
            color: #007bff;
            border-left: 4px solid #007bff;
            font-weight: 600;
        }

.support-info {
    margin-top: 30px;
    padding: 20px;
    background: #eef5ff;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

    .support-info .icon {
        font-size: 40px;
        color: #007bff;
        margin-bottom: 10px;
    }

    .support-info h2 {
        font-size: 18px;
        font-weight: bold;
        color: #333;
    }

.contact-box {
    background: #fff;
    padding: 12px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 10px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

    .contact-box i {
        font-size: 18px;
        color: #007bff;
    }

.content {
    flex: 1;
    min-height: auto;
    padding: 20px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.content-box {
    display: none;
    padding: 20px;
}

    .content-box.active {
        display: block;
    }