:root {
    --dark-bg: #1e1e1e;       
    --text-light: #cccccc;    
    --text-highlight: #f8f8f2; 
    --primary-color: #007acc; 
    --input-bg: #2d2d30;      
}

body {
    background-color: var(--dark-bg);
    margin: 0;
    display: flex;
    flex-direction: column; 
    justify-content: flex-start; 
    align-items: center;
    
    min-height: 100vh;
    padding-top: 50px;
    padding-bottom: 20px; 
    color: var(--text-light); 
    font-family: Arial, sans-serif; 

    -webkit-user-select: none; 
    -moz-user-select: none;    
    -ms-user-select: none;     
    user-select: none;         
}

iframe {
    border: none; 
    width: 90%; 
    max-width: 620px;
    min-height: 480px; 
    height: 85vh; 
    max-height: 600px; 
    margin-bottom: 20px; 
}