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

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

.container {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 30px;
    width: 90%;
    max-width: 600px;
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
}

.qr-scanner-section, .qr-generator-section {
    text-align: center;
    margin-bottom: 20px;
}

h2 {
    margin-bottom: 15px;
    color: white;
}

#qr-video {
    max-width: 100%;
    border-radius: 10px;
    margin-bottom: 15px;
}

input {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border-radius: 5px;
    border: none;
    background: rgba(255,255,255,0.2);
    color: white;
}

button {
    background: #4CAF50;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    transition: background 0.3s ease;
}

button:hover {
    background: #45a049;
}

#qr-output {
    margin-top: 15px;
    display: flex;
    justify-content: center;
}

#download-qr {
    display: block;
    margin: 15px auto 0;
    background: #2196F3;
}

#download-qr:hover {
    background: #1976D2;
}

#open-ucapan-btn {
    background: #FF9800;
    margin-top: 15px;
    display: none;
}

#open-ucapan-btn:hover {
    background: #F57C00;
}

@media (max-width: 600px) {
    .container {
        width: 95%;
        padding: 20px;
    }
}