/* Custom Animations */
.animate-fade-in { animation: fadeIn 0.4s ease-out; }
@keyframes fadeIn { 
    from { opacity: 0; transform: translateY(15px) scale(0.98); } 
    to { opacity: 1; transform: translateY(0) scale(1); } 
}

.spinner { animation: spin 1s linear infinite; }
@keyframes spin { 
    from { transform: rotate(0deg); } 
    to { transform: rotate(360deg); } 
}

/* Audio Player Tweaks (Light Theme) */
audio { 
    width: 100%; 
    max-height: 36px; 
    border-radius: 8px; 
    outline: none;
}
audio::-webkit-media-controls-panel { 
    background-color: #FFF5F0; /* brand-background */
}

/* Custom Range Slider */
input[type=range].quality-slider {
    background: transparent;
}
input[type=range]::-webkit-slider-runnable-track {
    background: #E2E8F0;
    height: 8px;
    border-radius: 8px;
}
input[type=range]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    margin-top: -4px;
    background-color: #FF7F50;
    height: 16px;
    width: 16px;
    border-radius: 50%;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: transform 0.1s;
}
input[type=range]:active::-webkit-slider-thumb {
    transform: scale(1.2);
}

/* Toast Animations */
.toast-enter { animation: slideIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards; }
.toast-leave { animation: slideOut 0.3s ease-in forwards; }

@keyframes slideIn { 
    from { transform: translateX(120%); opacity: 0; } 
    to { transform: translateX(0); opacity: 1; } 
}
@keyframes slideOut { 
    from { transform: translateX(0); opacity: 1; } 
    to { transform: translateX(120%); opacity: 0; } 
}