body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #f5f7fa;
    margin: 0;
    padding: 20px;
}

.login-container {
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    max-width: 500px;
    width: 100%;
}

.login-container h2 {
    margin-bottom: 20px;
    color: #333;
    text-align: center;
    font-size: 24px;
}

.login-container p {
    margin: 15px 0 10px;
    color: #555;
    line-height: 1.6;
}

.login-container input {
    width: 100%;
    padding: 12px;
    margin: 8px 0 16px;
    border: 1px solid #ddd;
    border-radius: 6px;
    box-sizing: border-box;
    font-size: 16px;
    transition: border-color 0.3s;
}

.login-container input:focus {
    border-color: #007bff;
    outline: none;
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.25);
}

.login-container button {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 6px;
    color: #fff;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s;
    margin: 10px 0;
}

.button[type="submit"] {
    background-color: #007bff;
}

.button[type="submit"]:hover {
    background-color: #0069d9;
}

.btn-secondary, .btn-primary, .button-link {
    display: inline-block;
    width: 100%;
    padding: 12px;
    border-radius: 6px;
    text-align: center;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s;
    margin: 10px 0;
    color: #fff;
    text-decoration: none;
    border: none;
    box-sizing: border-box;
}

.btn-secondary, .button-link.btn-secondary {
    background-color: #6c757d;
}

.btn-secondary:hover, .button-link.btn-secondary:hover {
    background-color: #5a6268;
}

.btn-primary, .button-link.btn-primary {
    background-color: #007bff;
}

.btn-primary:hover, .button-link.btn-primary:hover {
    background-color: #0069d9;
}

.login-container a {
    display: block;
    text-align: right;
    margin-top: 10px;
    color: #007bff;
    text-decoration: none;
}

.login-container a.button-link {
    display: inline-block;
    text-align: center;
    width: 100%;
    color: #fff;
    margin-top: 10px;
    text-decoration: none;
}

.button-link {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
    padding: 12px;
    border-radius: 6px;
    margin: 15px 0;
    border-left: 4px solid #dc3545;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    padding: 12px;
    border-radius: 6px;
    margin: 15px 0;
    border-left: 4px solid #28a745;
}

.qr-code-container {
    text-align: center;
    margin: 20px 0;
    padding: 15px;
    background-color: #f8f9fa;
    border-radius: 6px;
}

.qr-code-container svg {
    max-width: 200px;
    height: auto;
}

.secret-key {
    font-family: monospace;
    padding: 8px 12px;
    background-color: #e9ecef;
    border-radius: 4px;
    display: inline-block;
}

.recovery-codes {
    background-color: #f8f9fa;
    padding: 15px;
    border-radius: 6px;
    margin-top: 20px;
}

.recovery-codes ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 10px;
}

.recovery-codes li {
    font-family: monospace;
    background-color: #e9ecef;
    padding: 8px;
    border-radius: 4px;
    text-align: center;
    word-break: break-all;
    font-size: 14px;
    overflow: hidden;
}

.section-title {
    font-weight: bold;
    margin-top: 25px;
    margin-bottom: 10px;
    color: #495057;
}

.text-center {
    text-align: center;
}

.actions-container {
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    text-align: center;
}

.actions-container a,
.actions-container form,
.actions-container button {
    width: 100%;
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}

.actions-container form {
    display: block;
    width: 100%;
}

.actions-container form button {
    width: 100%;
    margin: 10px 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.actions-container .button-link,
.actions-container button {
    display: inline-block;
    width: 100%;
    box-sizing: border-box;
}