body { 
    font-family: 'Segoe UI', sans-serif; 
    background: linear-gradient(135deg, #0f0f23, #1a1a2e); 
    color: #fff; 
    margin: 0; 
    padding: 20px; 
    min-height: 100vh;
}
.container { 
    max-width: 400px; margin: auto; 
    text-align: center; 
    background: rgba(255,255,255,0.05); 
    padding: 30px; 
    border-radius: 15px; 
    box-shadow: 0 4px 20px rgba(0,0,0,0.3); 
    backdrop-filter: blur(10px);
}
h1 { color: #00ff88; margin-bottom: 10px; }
p { color: #ccc; font-size: 14px; }
.controls { display: flex; flex-direction: column; gap: 10px; }
button { 
    background: linear-gradient(45deg, #007bff, #0056b3); 
    color: white; 
    border: none; 
    padding: 15px; 
    font-size: 16px; 
    border-radius: 10px; 
    cursor: pointer; 
    transition: transform 0.2s, box-shadow 0.2s;
}
button:hover { transform: scale(1.05); box-shadow: 0 4px 15px rgba(0,123,255,0.4); }
.gauge { 
    margin: 20px auto; 
    border-radius: 50%; 
    box-shadow: 0 4px 20px rgba(0,0,0,0.5); 
    display: block;
}
.progress { 
    margin: 20px 0; 
    padding: 15px; 
    background: rgba(0,0,0,0.3); 
    border-radius: 10px; 
    font-weight: bold; 
    color: #00ff88;
    transition: all 0.3s;
}
.results { 
    margin-top: 20px; 
    font-size: 18px; 
    color: #00ff88; 
    background: rgba(0,255,136,0.1); 
    padding: 15px; 
    border-radius: 10px;
}
footer { 
    margin-top: 30px; 
    color: #888; 
    font-size: 12px; 
}
@media (max-width: 480px) { 
    .container { padding: 20px; } 
    button { font-size: 18px; }
}