body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background: #f2f4f8;
    color: #333;
}
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
}
h1 {
    text-align: center;
    color: #0d6efd;
}
.tool-list {
    list-style: none;
    padding: 0;
}
.tool-list li {
    margin: 0.5rem 0;
}
.tool-list a {
    text-decoration: none;
    background: #0d6efd;
    color: #fff;
    padding: 0.75rem 1rem;
    display: block;
    border-radius: 6px;
    transition: background 0.3s ease;
}
.tool-list a:hover {
    background: #084298;
}