html {
    background-color: #121212;
}


body.dark-theme {
    background-color: #121212;
    color: #e0e0e0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    padding: 40px;
    line-height: 1.6;
}

h1 {
    text-align: center;
    font-size: 32px;
    margin-bottom: 30px;
    color: #ffffff;
}

.container {
    display: flex;
    gap: 60px;
    justify-content: center;
}

form {
    flex: 1;
    max-width: 600px;
    background-color: #1e1e1e;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(255, 255, 255, 0.1);
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #ccc;
}

input, textarea {
    width: 100%;
    padding: 12px;
    margin-bottom: 20px;
    background-color: #2c2c2c;
    color: #ffffff;
    border: 1px solid #555;
    border-radius: 6px;
    font-size: 15px;
    transition: border-color 0.3s ease, background-color 0.3s ease;

}


input:focus, textarea:focus {
    outline: none;
    border-color: #2196f3;
    background-color: #2a2a2a;
}

input:required:invalid {
    border-color: #ff6b6b;
}

input:required:valid {
    border-color: #4caf50;
}

textarea {
    resize: vertical;
    min-height: 60px;
}

button {
    display: block;
    width: 100%;
    padding: 14px;
    background-color: #4caf50;
    color: #ffffff;
    font-weight: bold;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    cursor: pointer;
    margin-top: 20px;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #45a049;
}

.console {
    flex: 1;
    background-color: #1e1e1e;
    padding: 20px;
    border-radius: 8px;
    font-family: monospace;
    white-space: pre-wrap;
    overflow-y: auto;
    max-height: 600px;
    border: 1px solid #333;
}