body, html {
    height: 100%;
    margin: 0;
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    background-image: url('https://images.pexels.com/photos/417074/pexels-photo-417074.jpeg');
    background-size: cover;
    background-position: center;
}

.background-container {
    background-color: rgba(0, 0, 0, 0.6);
    padding: 20px;
    border-radius: 10px;
    color: white;
    text-align: center;
    width: 80%;
    max-width: 800px;
}

.alert {
    background-color: rgba(255, 0, 0, 0.7);
    padding: 10px;
    margin-bottom: 20px;
    border-radius: 10px;
}

.neon-button {
    display: inline-block;
    padding: 10px 20px;
    border: none;
    background-color: transparent;
    color: white;
    font-size: 16px;
    text-decoration: none;
    position: relative;
    overflow: hidden;
    transition: color 0.4s, box-shadow 0.4s;
    border-radius: 20px;
    margin-top: 10px;
}

.neon-button::before {
    content: '';
    position: absolute;
    background: linear-gradient(to right, #00bfff, #1e90ff, #4169e1, #0000ff, #00008b, #4b0082, #8a2be2, #8b0000);
    top: 0;
    left: 0;
    width: 100%;
    height: 300%;
    z-index: -1;
    transition: transform 0.6s;
    transform: translateY(-66%);
    border-radius: 20px;
}

.neon-button:hover::before {
    transform: translateY(-33%);
}

.neon-button-back {
    display: inline-block;
    padding: 10px 20px;
    border: none;
    background-color: transparent;
    color: #1e90ff;
    font-size: 16px;
    text-decoration: none;
    position: relative;
    overflow: hidden;
    transition: color 0.4s, box-shadow 0.4s;
    border-radius: 20px;
    margin-top: 10px;
}

.neon-button-back::before {
    content: '';
    position: absolute;
    background: linear-gradient(to right, #00bfff, #1e90ff, #4169e1, #0000ff, #00008b, #4b0082, #8a2be2, #8b0000);
    top: 0;
    left: 0;
    width: 100%;
    height: 300%;
    z-index: -1;
    transition: transform 0.6s;
    transform: translateY(-66%);
    border-radius: 20px;
}

.neon-button-back:hover::before {
    transform: translateY(-33%);
}

.clock-container {
    margin-top: 20px;
    font-size: 24px;
}