:root {
    --primary-color: #4a90e2;
    --secondary-color: #f5a623;
    --background-color: #f8f9fa;
    --text-color: #333333;
    --error-color: #dc3545;
}

body {
    font-family: 'Vazir', 'Tahoma', sans-serif;
    background-color: var(--background-color);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    padding: 20px;
}

.login-container {
    background-color: #ffffff;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    padding: 30px;
    width: 100%;
    max-width: 400px;
}

.login-form h2 {
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 5px;
    color: var(--text-color);
    font-weight: bold;
}

input[type="text"],
input[type="password"] {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
}

.login-button {
    width: 100%;
    padding: 12px;
    background-color: var(--primary-color);
    color: #ffffff;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.login-button:hover {
    background-color: #3a7bd5;
}

.error-message {
    background-color: var(--error-color);
    color: #ffffff;
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 20px;
    text-align: center;
}

.container {
    background-color: #ffffff;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    padding: 30px;
    width: 100%;
    max-width: 400px;
}

.change-password-form h2 {
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 5px;
    color: var(--text-color);
    font-weight: bold;
}

input[type="password"] {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
}

.submit-button {
    width: 100%;
    padding: 12px;
    background-color: var(--primary-color);
    color: #ffffff;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.submit-button:hover {
    background-color: #3a7bd5;
}

.error-message {
    background-color: var(--error-color);
    color: #ffffff;
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 20px;
    text-align: center;
}

.success-message {
    background-color: var(--success-color);
    color: #ffffff;
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 20px;
    text-align: center;
}

.registration-form h2 {
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 20px;
}

@media (max-width: 480px) {
    .login-container {
        padding: 20px;
    }
}