.ylpg-container {
    max-width: 800px;
    margin: 2rem auto;
    padding: 1.5rem;
    border: 1px solid #ddd;
    border-radius: 12px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f9f9f9;
}

.ylpg-container h2 {
    color: #1a73e8;
    text-align: center;
    margin-bottom: 1rem;
}

.device-entry {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 10px;
    margin-bottom: 10px;
    align-items: center;
}

.device-entry input {
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 14px;
}

button {
    padding: 10px 16px;
    margin-top: 10px;
    background-color: #1a73e8;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
}

button:hover {
    background-color: #0d47a1;
}

.submit-btn {
    background-color: #28a745;
}

.submit-btn:hover {
    background-color: #1e7e34;
}

canvas {
    margin-top: 20px;
    border: 1px dashed #ddd;
    border-radius: 8px;
    background-color: #fff;
}