body { font-family: sans-serif; margin: 0; padding: 0; background: #fff; color: #111; }
header { background: #007bff; color: #fff; padding: 1rem; text-align: center; }
.tools { display: flex; flex-direction: column; padding: 2rem; gap: 1rem; }
.tools a { padding: 1rem; background: #f2f2f2; text-decoration: none; border-radius: 8px; color: #333; }
footer { text-align: center; padding: 1rem; font-size: 0.9rem; background: #f1f1f1; }