/* Voice Waveform Visualizer Styles - Canvas-based */

/* Input wrapper positioning for waveform */
.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    width: 100%;
    min-height: 48px;
    background: var(--surface-color);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-lg);
    transition: var(--transition-normal);
    overflow: hidden;
}

.input-wrapper:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* Message input styling when visualizer is active */
.message-input {
    position: relative;
    z-index: 1;
    background: transparent;
    border: none;
    outline: none;
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
    line-height: 1.5;
    color: var(--text-primary);
    resize: none;
    min-height: 48px;
    max-height: 120px;
    transition: var(--transition-normal);
    opacity: 1;
}

.message-input:focus {
    background: transparent;
}

/* Hide text input when visualizer is active */
.voice-waveform-container.active ~ .message-input,
.voice-waveform-container.active + .message-input {
    opacity: 0 !important;
    pointer-events: none !important;
    z-index: 0 !important;
    visibility: hidden !important;
}

/* Show text input when visualizer is not active */
.message-input {
    opacity: 1;
    pointer-events: auto;
    z-index: 1;
    visibility: visible;
}

.voice-waveform-container {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(102, 126, 234, 0.05);
    border-radius: 0.75rem;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 10;
}

.voice-waveform-container.active {
    opacity: 1;
    visibility: visible;
}

/* Canvas-based waveform styling */
.voice-waveform {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    width: 100%;
    padding: 0;
    position: relative;
}

#waveformCanvas {
    display: block;
    width: 100%;
    height: 100%;
    border-radius: 0.75rem;
    background: transparent;
    /* Optimize canvas rendering */
    image-rendering: optimizeSpeed;
    image-rendering: -moz-crisp-edges;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: optimize-contrast;
    -ms-interpolation-mode: nearest-neighbor;
}

/* Recording indicator */
.recording-indicator {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 8px;
    height: 8px;
    background: #ef4444;
    border-radius: 50%;
    animation: recording-pulse 1s infinite;
    z-index: 20;
}

@keyframes recording-pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.2);
        opacity: 0.7;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

/* Responsive adjustments for Canvas */
@media (max-width: 768px) {
    .voice-waveform-container {
        min-height: 44px;
    }
    
    #waveformCanvas {
        min-height: 44px;
    }
}

@media (max-width: 480px) {
    .voice-waveform-container {
        min-height: 40px;
    }
    
    #waveformCanvas {
        min-height: 40px;
    }
}

/* Dark mode support for Canvas */
@media (prefers-color-scheme: dark) {
    .voice-waveform-container {
        background: rgba(102, 126, 234, 0.1);
    }
    
    #waveformCanvas {
        background: rgba(102, 126, 234, 0.05);
    }
}

/* High DPI display optimization */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    #waveformCanvas {
        image-rendering: pixelated;
    }
}

/* Performance optimizations */
.voice-waveform-container.active #waveformCanvas {
    /* Enable hardware acceleration */
    transform: translateZ(0);
    will-change: transform;
}

/* Smooth transitions for container */
.voice-waveform-container {
    transform: translateZ(0);
    backface-visibility: hidden;
    perspective: 1000px;
}

/* Ensure canvas doesn't interfere with text input */
.voice-waveform-container:not(.active) #waveformCanvas {
    pointer-events: none;
}