body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.container {
    text-align: center;
    padding: 20px;
    max-width: 600px;
}

#factDisplay {
    min-height: 80px;
    margin: 20px;
    padding: 20px;
    font-size: 1.2em;
    color: #2c3e50;
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    opacity: 0;
    transform: translateY(-20px);
    transition: all 0.3s ease;
}

#factDisplay.visible {
    opacity: 1;
    transform: translateY(0);
}

#generateButton {
    padding: 15px 30px;
    font-size: 1.2em;
    cursor: pointer;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 25px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

#generateButton:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 8px rgba(0, 0, 0, 0.2);
    background-color: #2980b9;
}

#generateButton:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}