* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #f4f4f9;
}

.container {
    background-color: #fff;
    padding: 30px;
    max-width: 500px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
}

h2 {
    margin-bottom: 20px;
    text-align: center;
    color: #333;
}

form {
    display: grid;
    grid-template-columns: 1fr;
    grid-gap: 15px;
}

input[type="text"],
input[type="email"],
textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 5px;
    transition: border-color 0.3s;
}

input[type="text"]:focus,
input[type="email"]:focus,
textarea:focus {
    border-color: #5a67d8;
    outline: none;
}

textarea {
    resize: vertical;
}

button {
    padding: 12px;
    border: none;
    background-color: #5a67d8;
    color: white;
    font-weight: bold;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #4c51bf;
}

button[type="button"] {
    background-color: #6b7280;
    margin-top: 5px;
}

button[type="button"]:hover {
    background-color: #4b5563;
}

.config {
    border: 1px solid #ccc;
    border-radius: 5px;
    padding: 15px;
    background-color: #f9fafb;
}

.config h3 {
    margin-bottom: 10px;
    text-align: left;
    color: #5a67d8;
}

label {
    display: flex;
    align-items: center;
}

label input {
    margin-right: 10px;
}

.loader {
    display: none;
    position: fixed;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}