/* frontend/style.css */
@keyframes pulse-ring {
    0% { transform: scale(0.95); opacity: 0.5; }
    50% { transform: scale(1.05); opacity: 0.8; }
    100% { transform: scale(0.95); opacity: 0.5; }
}



.glass-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 1.5rem;
}

.light .glass-card {
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.screen-fade-in {
    animation: fadeIn 0.4s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

#qrcode img {
    margin: 0 auto;
    border-radius: 0.75rem;
}

.progress-bar-fill {
    transition: width 0.3s ease-in-out;
}

.qr-pulse {
    animation: pulseGlow 2s infinite ease-in-out;
}

@keyframes pulseGlow {
    0% { transform: scale(1); box-shadow: 0 0 0 rgba(99,102,241,0.4); }
    50% { transform: scale(1.03); box-shadow: 0 0 25px rgba(99,102,241,0.5); }
    100% { transform: scale(1); box-shadow: 0 0 0 rgba(99,102,241,0.4); }
}