body {
    background-color: #f0f2f5;
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.login-card {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
    padding: 30px 35px;
    width: 100%;
    max-width: 380px;
}

.login-header {
    text-align: center;
    margin-bottom: 25px;
}

.login-header h4 {
    margin-top: 10px;
    color: #333;
}

.login-icon {
    font-size: 40px;
    color: #0d6efd;
}

.form-label {
    font-weight: 500;
    color: #555;
}

.input-group-text {
    background-color: #e9ecef;
    min-width: 42px;
    justify-content: center;
}

#loginBtn {
    padding: 8px;
    font-size: 16px;
}