/**
 * AudioVisualizer Component Styles
 * 公共音频可视化组件样式
 */

/* 基础样式 */
.audio-visualizer canvas {
    display: block;
    width: 100%;
    height: 100%;
    border-radius: 12px;
    background-color: transparent;
}

/* 容器样式 */
.audio-visualizer {
    position: relative;
    overflow: hidden;
}

/* 加载状态 */
.audio-visualizer.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    color: #6B7280;
    font-size: 14px;
}

.audio-visualizer.loading::before {
    content: '';
    width: 20px;
    height: 20px;
    border: 2px solid #E5E7EB;
    border-top: 2px solid #22C55E;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 8px;
}

/* 错误状态 */
.audio-visualizer.error {
    display: flex;
    align-items: center;
    justify-content: center;
    color: #EF4444;
    font-size: 14px;
    background-color: #FEF2F2;
    border-color: #FECACA;
}

/* 录制状态指示器 */
.audio-visualizer.recording::after {
    content: '';
    position: absolute;
    top: 8px;
    right: 8px;
    width: 8px;
    height: 8px;
    background-color: #EF4444;
    border-radius: 50%;
    animation: pulse 1s ease-in-out infinite;
}

/* 动画 */
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .audio-visualizer canvas {
        border-radius: 8px;
    }
}

/* 暗色模式支持 */
@media (prefers-color-scheme: dark) {
    .audio-visualizer.loading {
        color: #9CA3AF;
    }
    
    .audio-visualizer.loading::before {
        border-color: #374151;
        border-top-color: #22C55E;
    }
    
    .audio-visualizer.error {
        background-color: #1F2937;
        border-color: #374151;
    }
}