/* Page background */
body {
    margin: 0;
    font-family: "Poppins", sans-serif;
    background: #000;
    color: white;
    display: flex;
    justify-content: center;
    padding: 40px 15px;
}

/* Main layout */
.container {
    max-width: 500px;
    width: 100%;
    text-align: center;
}

.title {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 5px;
}

.subtitle {
    font-size: 14px;
    opacity: 0.8;
    margin-bottom: 30px;
}

/* Glassmorphic card */
.glass-card {
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(15px);
    border-radius: 20px;
    padding: 20px;
    margin-bottom: 25px;
    box-shadow: 0 0 25px rgba(0, 0, 0, 0.25);
}

/* Buttons */
.glass-btn {
    background: rgba(255, 255, 255, 0.15);
    padding: 12px 20px;
    color: white;
    font-weight: 600;
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 12px;
    cursor: pointer;
    display: inline-block;
    margin-top: 10px;
    backdrop-filter: blur(10px);
    text-decoration: none;
}

.glass-btn:hover {
    background: rgba(255, 255, 255, 0.25);
}

/* Hide elements */
.hidden {
    display: none;
}

/* QR scanner container (wrapping html5-qrcode) */
#reader {
    width: 100%;
    border-radius: 15px;
    overflow: hidden;
}