body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f7f7f7;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.login-container {
    background-color: #fff;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.logo {
    width: 80px; /* کاهش اندازه لوگو */
    margin-bottom: 20px;
}

.login-form {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.login-form label {
    font-size: 16px;
    color: #333;
    margin-bottom: 8px;
    align-self: flex-start;
}

.login-form input {
    width: 100%;
    padding: 12px;
    margin-bottom: 15px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
    box-sizing: border-box;
}

.submit-btn {
    background-color: #000;
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s ease;
}

.submit-btn:hover {
    background-color: #333;
}