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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    text-align: center;
    padding: 3rem 1rem;
    background: linear-gradient(135deg, #4a6cf7 0%, #6c5ce7 100%);
    color: white;
    margin-bottom: 2rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

header p {
    font-size: 1.1rem;
    opacity: 0.9;
}

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.card-section {
    margin-bottom: 2rem;
}

.card-section h2 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
    color: #2d3748;
    text-align: center;
    position: relative;
    padding-bottom: 0.5rem;
}

.section-description {
    text-align: center;
    color: #718096;
    margin-bottom: 1.5rem;
    font-size: 1rem;
    font-style: italic;
}

.card-section h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #4a6cf7, #6c5ce7);
    border-radius: 3px;
}

.card-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
}

.card {
    display: flex;
    align-items: center;
    padding: 1.5rem;
    background: white;
    border-radius: 12px;
    text-decoration: none;
    color: #2d3748;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.05);
    width: calc(33.333% - 1.5rem);
    min-width: 300px;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    border-color: rgba(74, 108, 247, 0.2);
}

.card-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: rgba(74, 108, 247, 0.1);
    border-radius: 12px;
    margin-right: 1.2rem;
    flex-shrink: 0;
}

.card-icon i {
    font-size: 1.8rem;
    color: #4a6cf7;
}

.card-content {
    flex: 1;
}

.card-content h3 {
    font-size: 1.2rem;
    margin-bottom: 0.3rem;
    font-weight: 600;
}

.card-content p {
    font-size: 0.9rem;
    color: #718096;
}

footer {
    text-align: center;
    padding: 2rem;
    background: white;
    margin-top: 3rem;
    color: #718096;
    box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.05);
}

@media (max-width: 992px) {
    .card {
        width: calc(50% - 1.5rem);
    }
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }
    
    .card {
        width: 100%;
    }
    
    .card {
        padding: 1.2rem;
    }
    
    .card-icon {
        width: 50px;
        height: 50px;
    }
    
    .card-icon i {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    header {
        padding: 2rem 1rem;
    }
    
    header h1 {
        font-size: 1.8rem;
    }
    
    .card-section h2 {
        font-size: 1.5rem;
    }
}