body {

    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;

    margin: 0;

    padding: 0;

    color: #333;

    background-color: #f4f6f9;

}



.main-container {

    width: 100%;

    max-width: 1200px; 

    margin: 0 auto;

    padding: 0 20px; 

}



.header {

    background: linear-gradient(135deg, #5b5b5b, #a1a1a1);

    color: white;

    padding: 60px 20px; 

    text-align: center;

    border-radius: 0 0 50% 50%;

    margin-bottom: 30px;

}



    .header h1 {

        font-size: 3em;

        margin: 0;

    }



    .header p {

        font-size: 1.2em;

        margin: 10px 0 20px;

    }



.btn {

    display: inline-block;

    padding: 12px 25px;

    font-size: 1em;

    margin: 5px;

    text-decoration: none;

    color: white;

    border-radius: 5px;

    transition: background 0.3s ease;

}



.btn-primary {

    background: #4a90e2;

}



.btn-secondary {

    background: #7f8c8d;

}



    .btn-primary:hover, .btn-secondary:hover {

        opacity: 0.8;

    }



.intro {

    display: flex;

    align-items: center;

    justify-content: center;

    margin: 50px 0;

    flex-direction: column;

    text-align: center;

}



.intro-content {

    width: 100%;

    max-width: 600px;

    margin-bottom: 20px;

}



    .intro-content h2 {

        font-size: 2.5em;

        margin-bottom: 10px;

        color: #333;

    }



    .intro-content p {

        font-size: 1.2em;

        color: #666;

    }



.intro-image {

    width: 100%;

    max-width: 600px;

    border-radius: 10px;

}



.features {

    display: flex;

    flex-direction: column;

    align-items: center;

    margin-bottom: 50px;

}



.feature-card {

    background: #fff;

    border-radius: 8px;

    padding: 20px;

    margin: 10px 0;

    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);

    text-align: center;

    width: 100%;

    max-width: 600px;

    transition: transform 0.3s ease, box-shadow 0.3s ease; 

}



    .feature-card:hover {

        transform: translateY(-10px);

        box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);

    }





    .feature-card i {

        font-size: 3em;

        color: #4a90e2;

    }



    .feature-card h3 {

        margin-top: 15px;

        font-size: 1.5em;

        color: #333;

    }



    .feature-card p {

        color: #666;

    }