* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: darkslategray;
}

main {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

/* Banner Section */
.banner {
    background-color: #ffffff;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.banner-container {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-bottom: 1.5rem;
}

.banner-item img {
    border-radius: 8px;
}

.banner-item h1 {
    font-size: 2.5rem;
    color: #2c3e50;
}

.banner p {
    font-size: 1.1rem;
    color: #555;
    line-height: 1.8;
}

/* Flex Container for Cards */
.flex-container {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

/* Individual Cards */
.card {
    flex: 1;
    min-width: 300px;
    background-color: #fff;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
}

.card h3 {
    font-size: 1.5rem;
    color: #2c3e50;
    margin-bottom: 1rem;
}

.card p {
    margin-bottom: 1rem;
    color: #555;
    text-align: justify;
}

.card p:last-child {
    margin-bottom: 0;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .flex-container {
        gap: 1.5rem;
    }
    
    .card {
        min-width: 250px;
    }
}

@media (max-width: 768px) {
    .banner-container {
        flex-direction: column;
        text-align: center;
    }
    
    .banner-item h1 {
        font-size: 2rem;
    }
    
    .flex-container {
        flex-direction: column;
    }
    
    .card {
        min-width: 100%;
    }
}

@media (max-width: 480px) {
    main {
        padding: 1rem;
    }
    
    .banner {
        padding: 1.5rem;
    }
    
    .banner-item h1 {
        font-size: 1.5rem;
    }
    
    .card {
        padding: 1.5rem;
    }
}