body {
    margin: 0;
    padding: 0;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #0f0000; /* dark background */
    font-family: 'Arial', sans-serif;
}

#title {
    font-size: 2.5rem;            
    font-weight: bold;
    color: #fff;                   
    text-align: center;

    border: 4px solid #ffcc00;     
    border-radius: 12px;           
    padding: 20px 40px;             
    background: linear-gradient(145deg, #6e6c6c, #4a4848); 
    
    box-shadow: 0 8px 15px rgba(0,0,0,0.5), 0 0 10px #ffcc00; 
    text-shadow: 2px 2px 5px rgba(0,0,0,0.5);
}

.btn {
    display: inline-block;      /* behaves like a button */
    padding: 12px 25px;         /* size */
    margin: 10px;               /* space between buttons */
    font-size: 8px;            /* text size */
    font-weight: bold;           /* bold text */
    color: white;               /* text color */
    text-decoration: none;       /* remove underline */
    border-radius: 8px;          /* rounded corners */
    transition: all 0.3s ease;  /* smooth hover */
    cursor: pointer;             /* pointer on hover */
}

.btn-register {
    background-color: #28a745;  /* green */
}

.btn-register:hover {
    background-color: #218838;  /* darker green on hover */
}

.btn-login {
    background-color: #007bff;  /* blue */
}

.btn-login:hover {
    background-color: #0069d9;  /* darker blue on hover */
}
.btn-guest {
    background-color: #6c757d;  /* gray */
}
.btn-guest:hover {
    background-color: #5a6268;  /* darker gray on hover */
}