body {
    font-family: Arial, sans-serif;
    background-color: #f9f9f9;
    margin: 0;
    padding: 0;
}

nav {
    background-color: #333;
}

nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: center;
}

nav ul li {
    margin: 0;
}

nav ul li a {
    display: block;
    padding: 14px 20px;
    color: white;
    text-decoration: none;
}

nav ul li a:hover {
    background-color: #575757;
}

.container {
    max-width: 800px;
    margin: 50px auto;
    padding: 20px;
    background-color: #fff;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.2);
    border-radius: 12px;
}

h1 {
    text-align: center;
    color: #444;
    font-size: 28px;
    margin-bottom: 20px;
}

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

.form-group {
    margin-bottom: 15px;
}

label {
    margin-bottom: 8px;
    font-weight: bold;
    color: #555;
}

input[type="text"],
input[type="email"],
textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 16px;
    font-family: Arial, sans-serif;
    box-sizing: border-box;
}

button {
    padding: 12px 18px;
    background-color: #007bff;
    border: none;
    color: white;
    font-size: 18px;
    cursor: pointer;
    border-radius: 6px;
}

button:hover {
    background-color: #0056b3;
}

footer {
    text-align: center;
    margin-top: 30px;
    font-size: 14px;
}

footer a {
    color: #007bff;
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

.header-background {
    background-color: #f0f0f0;
    padding: 10px 15px;
    font-weight: bold;
    margin-top: 15px;
    border-radius: 6px;
}

.download-button,
.copy-button {
    display: inline-block;
    width: 48%;
    box-sizing: border-box;
    margin: 10px 0;
}

.download-button {
    margin-right: 2%;
}

.copy-button {
    margin-left: 2%;
}

.loading-indicator {
    display: flex;
    justify-content: center;
    align-items: center;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.9);
    z-index: 1000;
}

.spinner {
    border: 4px solid rgba(0, 0, 0, 0.1);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border-left-color: #007bff;
    animation: spin 1s ease infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}