:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --background-color: #ecf0f1;
    --card-bg-color: #ffffff;
    --text-color: #34495e;
    --shadow-color: rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Montserrat', sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

header {
    background-color: var(--primary-color);
    color: white;
    text-align: center;
    padding: 2rem 1rem;
    box-shadow: 0 2px 4px var(--shadow-color);
}

header h1 {
    margin: 0;
    font-size: 2.5rem;
}

header p {
    margin-top: 0.5rem;
    opacity: 0.9;
}

main {
    padding: 2rem 1rem;
    max-width: 1200px;
    margin: 0 auto;
}

section {
    margin-bottom: 3rem;
}

section h2 {
    font-size: 2rem;
    color: var(--primary-color);
    border-bottom: 3px solid var(--secondary-color);
    padding-bottom: 0.5rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
}

section h2 .icon {
    margin-right: 1rem;
    font-size: 1.8rem;
}


.card-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.card {
    background-color: var(--card-bg-color);
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 4px 8px var(--shadow-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeIn 0.5s forwards;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px var(--shadow-color);
}

.card h3 {
    margin-top: 0;
    color: var(--secondary-color);
    font-size: 1.25rem;
}

@keyframes fadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }

    section h2 {
        font-size: 1.75rem;
    }
}