* { margin: 0; padding: 0; box-sizing: border-box; }
body { 
    font-family: 'Courier New', monospace; 
    background: linear-gradient(135deg, #0c0c0c 0%, #1a1a2e 50%, #16213e 100%);
    color: #00ff41; 
    min-height: 100vh; 
    padding: 20px;
}
.container { max-width: 800px; margin: 0 auto; }
.logo { text-align: center; font-size: 2em; margin-bottom: 30px; }
.card { 
    background: rgba(0, 20, 0, 0.8); 
    border: 2px solid #00ff41; 
    border-radius: 10px; 
    padding: 30px; 
    margin-bottom: 20px;
    backdrop-filter: blur(10px);
}
input, textarea, select { 
    width: 100%; padding: 12px; 
    background: rgba(0,255,65,0.1); 
    border: 1px solid #00ff41; 
    color: #00ff41; 
    border-radius: 5px;
    font-family: inherit;
    margin: 10px 0;
}
input:focus, textarea:focus { outline: none; box-shadow: 0 0 10px #00ff41; }
button { 
    background: #00ff41; color: #000; 
    padding: 12px 24px; border: none; 
    border-radius: 5px; cursor: pointer;
    font-family: inherit; font-weight: bold;
}
button:hover { background: #00cc33; }
.flag { 
    background: #000; color: #ff0040; 
    padding: 15px; border: 2px solid #ff0040; 
    border-radius: 5px; font-size: 1.2em;
    margin-top: 20px; display: none;
}
.hidden { display: none; }
.stage { margin-bottom: 40px; }
.error { color: #ff4444; }
.success { color: #00ff41; }
pre { background: rgba(0,0,0,0.5); padding: 15px; border-radius: 5px; overflow-x: auto; }