.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 30px;
}
.tool-card {
    background: #f9f9f9;
    border: 1px solid #ddd;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    transition: 0.3s;
}
.tool-card:hover { transform: translateY(-5px); box-shadow: 0 5px 15px rgba(0,0,0,0.1); }
.btn { display: inline-block; padding: 10px 20px; background: #007bff; color: white; text-decoration: none; border-radius: 5px; margin-top: 10px; }