#dropzone.dragover {
    border-color: #0f172a !important;
    background-color: #f8fafc !important;
}

#dropzone.dragover button {
    background-color: #0f172a !important;
    color: #ffffff !important;
    border-color: #0f172a !important;
}

@keyframes systemReveal {
    from { opacity: 0; transform: translateY(3px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
    animation: systemReveal 0.15s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}