body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}
header {
    background: url('https://image.pollinations.ai/prompt/A%20dynamic%2C%20high-quality%20image%20of%20athletes%20in%20motion%2C%20symbolizing%20speed%20and%20energy.%20The%20image%20should%20be%20vibrant%20and%20convey%20a%20sense%20of%20motion%20and%20excitement.%20Ideal%20for%20a%20tech%20startup%20focused%20on%20enhancing%20athletic%20performance%20using%20innovative%20technology.%2C%20photorealistic%2C%20detailed%2C%20high%20resolution?width=1920&height=1080&model=flux&nologo=true&enhance=true') no-repeat center center;
    background-size: cover;
    color: white;
    text-align: center;
    padding: 100px 20px;
}
.logo img {
    max-width: 200px;
}
main {
    padding: 20px;
}
section {
    margin-bottom: 20px;
    background: white;
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}
footer {
    text-align: center;
    padding: 10px 0;
    background-color: #333;
    color: white;
}