body, html {
    margin: 0;
    padding: 0;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #f4f4f4;
    font-family: Arial, sans-serif;
}

.background {
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, #4CAF50, #2196F3);
    z-index: -1;
}

.container {
    text-align: center;
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.1);
}

.login-button {
    background-color: #4CAF50;
    color: white;
    padding: 15px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 18px;
    transition: background 0.3s ease;
}

.login-button:hover {
    background-color: #45a049;
}

.arrow {
    font-size: 24px;
    margin-top: 10px;
    color: #333;
}

#timer {
    margin-top: 15px;
    font-size: 20px;
    font-weight: bold;
    color: red;
}