.platform-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.platform-icon:hover {
    transform: translateY(-5px);
}

.platform-icon i {
    width: 28px;
    height: 28px;
}

#videoUrl::placeholder {
    color: #9ca3af;
}

.dark #videoUrl::placeholder {
    color: #6b7280;
}

/* Animation for download button */
@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

#downloadBtn:active {
    animation: pulse 0.3s ease;
}

/* Loading spinner */
.spinner {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Responsive adjustments */
@media (max-width: 640px) {
    .platform-icon {
        width: 50px;
        height: 50px;
    }
    
    .platform-icon i {
        width: 24px;
        height: 24px;
    }
}