body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
}

.login-container {
    width: 400px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.login-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 30px 20px;
    text-align: center;
}

.login-header h2 {
    margin: 0;
    font-size: 24px;
    font-weight: 300;
}

.login-header p {
    margin: 10px 0 0 0;
    opacity: 0.9;
    font-size: 14px;
}

.login-body {
    padding: 30px;
}

.login-footer {
    padding: 20px;
    text-align: center;
    border-top: 1px solid #eee;
    color: #666;
    font-size: 12px;
}

.form-tips {
    color: #999;
    font-size: 12px;
    margin-top: 5px;
}

.demo-account {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 5px;
    padding: 15px;
    margin-bottom: 20px;
    font-size: 12px;
}

.demo-account h4 {
    margin: 0 0 8px 0;
    color: #495057;
}

.demo-account p {
    margin: 4px 0;
    color: #6c757d;
}