#pwa-premium-banner {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    background: #ffffff;
    padding: 25px;
    border-radius: 24px;
    display: none;
    z-index: 999999;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    width: 90%;
    max-width: 480px;
    font-family: 'Segoe UI', Roboto, sans-serif;
    border: 1px solid rgba(0,0,0,0.1);
}

.pwa-header-flex {
    display: flex;
    align-items: center;
    gap: 15px;
    text-align: left;
    margin-bottom: 20px;
}

.pwa-app-icon {
    width: 70px;
    height: 70px;
    border-radius: 16px;
    object-fit: cover;
}

.pwa-main-title {
    display: block;
    font-size: 20px;
    font-weight: 800;
    color: #000;
}

.pwa-tagline {
    font-size: 14px;
    color: #666;
}

.pwa-button-group {
    display: flex;
    gap: 12px;
}

.btn-pwa-main {
    flex: 1;
    background: #007bff;
    color: white;
    border: none;
    padding: 14px;
    border-radius: 12px;
    font-weight: 700;
    cursor: pointer;
}

.btn-pwa-secondary {
    flex: 1;
    background: transparent;
    color: #555;
    border: 2px solid #ddd;
    padding: 14px;
    border-radius: 12px;
    font-weight: 700;
    cursor: pointer;
}

/* Chrome Attention Pulse */
.pulse {
    animation: pwaPulse 2s infinite;
}

@keyframes pwaPulse {
    0% { box-shadow: 0 0 0 0 rgba(0, 123, 255, 0.4); }
    70% { box-shadow: 0 0 0 10px rgba(0, 123, 255, 0); }
    100% { box-shadow: 0 0 0 0 rgba(0, 123, 255, 0); }
}