body {
    background-color: #1e1e1e;
    color: #f0f0f0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    min-height: 100vh; 
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 40px 20px;
    display: block; 
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    row-gap: 20px; 
    column-gap: 20px;
    grid-auto-rows: 1fr; 
}

.tool-card {
    background-color: #2d2d2d;
    border: 1px solid #333;
    border-radius: 8px;
    padding: 20px;
    text-decoration: none;
    color: #f0f0f0;
    transition: transform 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
    
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 150px; 
}

.tool-card h2 {
    margin: 0;
    font-size: 1.25rem;
    color: #66afe9;
    text-align: center;
}

.tool-card:hover {
    transform: translateY(-5px);
    background-color: #363636;
    border-color: #444;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
    text-decoration: none;
}