* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 20px;
    min-height: 100vh;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}

h1 {
    color: #333;
    text-align: center;
    margin-bottom: 10px;
}

.warning {
    background: #ff4444;
    color: white;
    padding: 10px;
    text-align: center;
    border-radius: 5px;
    margin-bottom: 30px;
    font-weight: bold;
}

.section {
    margin-bottom: 30px;
    padding: 20px;
    background: #f5f5f5;
    border-radius: 8px;
    border-left: 4px solid #667eea;
}

h2 {
    color: #667eea;
    margin-bottom: 15px;
    font-size: 1.2em;
}

input {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

button {
    background: #667eea;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    margin-right: 10px;
    font-size: 14px;
}

button:hover {
    background: #5568d3;
}

#output, #storedData, #loginResult, #userData {
    margin-top: 15px;
    padding: 10px;
    background: white;
    border-radius: 4px;
    min-height: 20px;
}

pre {
    background: #2d2d2d;
    color: #f8f8f2;
    padding: 15px;
    border-radius: 4px;
    overflow-x: auto;
    font-size: 12px;
}