body {
    font-family: 'VT323', monospace;
    background: #000;
    color: #00ff99;
    margin: 0;
    padding: 0;
}

h1, h2, h3 {
    text-align: center;
}

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.login-container {
    max-width: 400px;
    margin: 100px auto;
    padding: 20px;
    border: 1px solid #00ff99;
    border-radius: 10px;
    background: rgba(0, 0, 0, 0.8);
    box-shadow: 0 0 20px rgba(0, 255, 153, 0.5);
}

.login-container h1 {
    margin-bottom: 10px;
}

.login-container h2, .login-container h3 {
    color: #e0e0e0;
}

input[type="text"], input[type="password"] {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #00ff99;
    border-radius: 5px;
    background: rgba(0, 0, 0, 0.7);
    color: #00ff99;
}

button {
    width: 100%;
    padding: 10px;
    background: #00ff99;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    color: #000;
    font-weight: bold;
}

button:hover {
    background: #e0e0e0;
}

#error-message {
    color: red;
    text-align: center;
}

.gallery-container {
    max-width: 800px;
    margin: 50px auto;
    padding: 20px;
    border: 1px solid #00ff99;
    border-radius: 10px;
    background: rgba(0, 0, 0, 0.8);
    box-shadow: 0 0 20px rgba(0, 255, 153, 0.5);
}

.gallery {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
}

.gallery-item {
    background: rgba(0, 255, 153, 0.2);
    border: 1px solid #00ff99;
    border-radius: 5px;
    margin: 10px;
    padding: 15px;
    width: 45%;
    text-align: center;
}

.embedded-code {
    margin-top: 20px;
    background: rgba(0, 0, 0, 0.7);
    border: 1px solid #00ff99;
    border-radius: 5px;
    padding: 10px;
}

.demo-container {
    margin-top: 20px;
    text-align: center;
}

.progress-container {
    background: rgba(0, 0, 0, 0.7);
    border: 1px solid #00ff99;
    border-radius: 10px;
    width: 80%;
    margin: 20px auto;
    height: 30px;
    position: relative;
    overflow: hidden;
}

.progress-bar {
    background: #00ff99;
    height: 100%;
    width: 0;
    transition: width 0.1s ease-in-out;
}

.demo-results {
    margin-top: 20px;
    color: #00ff99;
}

footer {
    text-align: center;
    margin-top: 20px;
    color: #e0e0e0;
}