body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #1a1a1a;
    color: #e0e0e0;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.branding {
    text-align: center;
    margin-bottom: 40px;
}

.branding img {
    max-width: 200px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.branding h1 {
    font-size: 2.5em;
    margin: 10px 0;
    color: #1a73e8;
}

.branding .tagline {
    font-size: 1.2em;
    color: #b0b0b0;
    font-style: italic;
}

#video {
    width: 100%;
    max-width: 640px;
    margin: 0 auto;
    display: block;
    border: 2px solid #444;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.diagnostics {
    background-color: #2a2a2a;
    border: 1px solid #444;
    border-radius: 10px;
    padding: 20px;
    margin: 20px auto;
    max-width: 640px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.diagnostics div {
    margin-top: 10px;
    font-size: 1.2em;
    text-align: center;
}

.diagnostics div span.label {
    color: #1a73e8;
    font-weight: bold;
}

#feedback {
    margin-top: 15px;
    padding: 8px;
    font-size: 1em;
    border-radius: 5px;
    border: 1px solid #555;
    background-color: #333;
    color: #e0e0e0;
    width: 200px;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

button {
    margin-top: 10px;
    padding: 10px 20px;
    font-size: 1em;
    background-color: #1a73e8;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

button:hover {
    background-color: #1557b0;
}

.model-info {
    text-align: center;
    margin-top: 30px;
    font-size: 0.9em;
    color: #b0b0b0;
}

.model-info a {
    color: #1a73e8;
    text-decoration: none;
}

.model-info a:hover {
    text-decoration: underline;
}

footer {
    text-align: center;
    margin-top: 40px;
    padding: 15px;
    background-color: #111;
    color: #b0b0b0;
    font-size: 0.9em;
    border-radius: 5px;
}