.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 20px 0;
}

.interactive-card {
    background: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: 2px solid transparent;
    outline: none;
}

.interactive-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.15);
    border-color: #007bff;
}

.interactive-card:focus {
    border-color: #007bff;
    box-shadow: 0 15px 35px rgba(0,0,0,0.15), 0 0 0 3px rgba(0,123,255,0.25);
}

.interactive-card:active {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.12);
}

.card-title {
    color: #333;
    margin: 0 0 10px 0;
    font-size: 18px;
    transition: color 0.3s ease;
}

.interactive-card:hover .card-title {
    color: #007bff;
}

.card-content {
    color: #666;
    line-height: 1.5;
    margin: 0;
}