body {
    font-family: 'Arial', sans-serif;
    background: #f0f2f5;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-height: 100vh;
    margin: 0;
    padding: 50px 20px 20px 20px;
}

.container {
    background: #ffffff;
    padding: 30px 25px;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
    max-width: 900px;
    width: 100%;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #e0e0e0;
}

.container:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.12);
}

h1 {
    text-align: center;
    color: #333;
    margin-bottom: 20px;
}

form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

input, textarea, select, button {
    padding: 12px 15px;
    border-radius: 8px;
    border: 1px solid #ccc;
    font-size: 16px;
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus, textarea:focus, select:focus {
    border-color: #007bff;
    box-shadow: 0 0 5px rgba(0, 123, 255, 0.3);
}

button {
    background: #007bff;
    color: #fff;
    border: none;
    cursor: pointer;
    font-weight: 600;
    transition: background 0.3s ease;
}

button:hover {
    background: #0056b3;
}

pre {
    margin-top: 25px;
    background: #f7f9fc;
    padding: 15px;
    border-radius: 8px;
    font-family: 'Courier New', monospace;
    white-space: pre-wrap;
    word-wrap: break-word;
    border: 1px solid #e1e4e8;
    overflow-x: auto;
}

/* Адаптивность */
@media (max-width: 600px) {
    .container {
        padding: 20px 15px;
    }

    input, textarea, select, button {
        font-size: 14px;
    }
}