body {
    font-family: Arial, sans-serif;
    background: linear-gradient(135deg, #74ebd5, #ACB6E5);
    margin: 0;
    padding-top: 20px;
}

h1 {
    text-align: center;
    font-size: 35px;
    margin-bottom: 18px;
    text-decoration: underline;
}

#app {
    max-width: 1200px;
    margin: auto;
    background: white;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    display: grid;
    grid-template-rows: auto 1fr auto;
    gap: 20px;
}

.grid-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    height: 100%;
}

#controls {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding: 20px;
    gap: 20px;
    border: 2px solid #74ebd5;
    border-radius: 10px;
}

#controls div {
    display: flex;
    align-items: center;
    gap: 10px;
}

label {
    font-weight: bold;
}

button {
    padding: 5px 10px;
    background: #007BFF;
    color: white;
    border: none;
    border-radius: 3px;
    cursor: pointer;
    transition: background 0.3s ease, transform 0.3s ease;
}

button:hover {
    background: #0056b3;
    transform: translateY(-2px);
}

#network {
    width: 600px;
    height: 435px;
    border: 2px solid #74ebd5;
    border-radius: 10px;
}

#output {
    grid-column: span 2;
    margin-top: 15px;
    padding: 15px;
    width: 350px;
    height: 20px;
    margin: auto;
    border: 2px solid #74ebd5;
    background: #f9f9f9;
}