/**
 * Audio Mixer UI Styles
 * 混音器界面样式
 */

/* 模态框 */
.mixer-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(15px);
    z-index: 10000;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.mixer-modal.active {
    opacity: 1;
}

/* 内容容器 */
.mixer-content {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    border-radius: 20px;
    width: 90%;
    max-width: 900px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 25px 70px rgba(0, 0, 0, 0.6);
    overflow: hidden;
    animation: slideIn 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

@keyframes slideIn {
    from {
        transform: scale(0.95) translateY(20px);
        opacity: 0;
    }
    to {
        transform: scale(1) translateY(0);
        opacity: 1;
    }
}

/* 头部 */
.mixer-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px 30px;
    background: linear-gradient(135deg, rgba(108, 92, 231, 0.2), rgba(0, 212, 255, 0.2));
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.mixer-header h2 {
    margin: 0;
    color: #fff;
    font-size: 24px;
    font-weight: 600;
}

.mixer-close {
    background: transparent;
    border: none;
    color: #fff;
    font-size: 36px;
    cursor: pointer;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.mixer-close:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: rotate(90deg);
}

/* 预设按钮区域 */
.mixer-presets {
    padding: 20px 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.mixer-presets label {
    display: block;
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    margin-bottom: 12px;
    font-weight: 500;
}

.preset-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.preset-btn {
    background: linear-gradient(135deg, rgba(108, 92, 231, 0.3), rgba(0, 212, 255, 0.3));
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    padding: 10px 20px;
    border-radius: 12px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.preset-btn:hover {
    background: linear-gradient(135deg, rgba(108, 92, 231, 0.5), rgba(0, 212, 255, 0.5));
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(108, 92, 231, 0.4);
}

/* 音轨列表 */
.mixer-tracks {
    flex: 1;
    overflow-y: auto;
    padding: 20px 30px;
    min-height: 200px;
}

.mixer-tracks::-webkit-scrollbar {
    width: 8px;
}

.mixer-tracks::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
}

.mixer-tracks::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 4px;
}

.mixer-tracks::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* 空状态 */
.mixer-empty {
    text-align: center;
    padding: 60px 20px;
    color: rgba(255, 255, 255, 0.5);
}

.mixer-empty p {
    font-size: 18px;
    margin-bottom: 10px;
}

.mixer-hint {
    font-size: 14px;
    opacity: 0.7;
}

/* 单个音轨 */
.mixer-track {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 15px 20px;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 20px;
    transition: all 0.3s ease;
}

.mixer-track:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateX(5px);
}

.track-info {
    flex: 1;
    min-width: 0;
}

.track-name {
    color: #fff;
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 5px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.track-category {
    color: rgba(255, 255, 255, 0.5);
    font-size: 13px;
    padding: 3px 10px;
    background: rgba(108, 92, 231, 0.2);
    border-radius: 6px;
    display: inline-block;
}

.track-controls {
    display: flex;
    align-items: center;
    gap: 15px;
}

.track-btn {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: #fff;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.track-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.track-btn-remove:hover {
    background: rgba(255, 71, 87, 0.4);
}

.track-volume {
    width: 150px;
    height: 6px;
    border-radius: 3px;
    outline: none;
    -webkit-appearance: none;
    background: rgba(255, 255, 255, 0.2);
}

.track-volume::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.5);
    transition: all 0.2s ease;
}

.track-volume::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.track-volume-value {
    color: rgba(255, 255, 255, 0.7);
    font-size: 13px;
    min-width: 40px;
    text-align: center;
}

/* 控制按钮区域 */
.mixer-controls {
    display: flex;
    gap: 10px;
    padding: 20px 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    flex-wrap: wrap;
}

.mixer-btn {
    flex: 1;
    min-width: 120px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    padding: 12px 20px;
    border-radius: 10px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.mixer-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.mixer-btn-add {
    background: linear-gradient(135deg, rgba(46, 213, 115, 0.3), rgba(0, 184, 148, 0.3));
    border-color: rgba(46, 213, 115, 0.5);
}

.mixer-btn-add:hover {
    background: linear-gradient(135deg, rgba(46, 213, 115, 0.4), rgba(0, 184, 148, 0.4));
}

.mixer-btn-play {
    background: linear-gradient(135deg, rgba(108, 92, 231, 0.3), rgba(0, 212, 255, 0.3));
    border-color: rgba(108, 92, 231, 0.5);
}

.mixer-btn-play:hover {
    background: linear-gradient(135deg, rgba(108, 92, 231, 0.4), rgba(0, 212, 255, 0.4));
}

.mixer-btn-pause {
    background: linear-gradient(135deg, rgba(253, 203, 110, 0.3), rgba(251, 170, 55, 0.3));
    border-color: rgba(253, 203, 110, 0.5);
}

.mixer-btn-pause:hover {
    background: linear-gradient(135deg, rgba(253, 203, 110, 0.4), rgba(251, 170, 55, 0.4));
}

.mixer-btn-clear {
    background: linear-gradient(135deg, rgba(255, 71, 87, 0.3), rgba(231, 76, 60, 0.3));
    border-color: rgba(255, 71, 87, 0.5);
}

.mixer-btn-clear:hover {
    background: linear-gradient(135deg, rgba(255, 71, 87, 0.4), rgba(231, 76, 60, 0.4));
}

/* 主音量控制 */
.mixer-master {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px 30px;
    background: rgba(0, 0, 0, 0.2);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.mixer-master label {
    color: rgba(255, 255, 255, 0.9);
    font-size: 15px;
    font-weight: 500;
    min-width: 80px;
}

#masterVolumeSlider {
    flex: 1;
    height: 8px;
    border-radius: 4px;
    outline: none;
    -webkit-appearance: none;
    background: rgba(255, 255, 255, 0.2);
}

#masterVolumeSlider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    cursor: pointer;
    box-shadow: 0 3px 12px rgba(240, 147, 251, 0.6);
    transition: all 0.2s ease;
}

#masterVolumeSlider::-webkit-slider-thumb:hover {
    transform: scale(1.3);
}

#masterVolumeValue {
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    min-width: 50px;
    text-align: center;
}

/* 对话框 */
.mixer-dialog-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
}

.mixer-dialog {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    border-radius: 15px;
    padding: 30px;
    min-width: 300px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.mixer-dialog h3 {
    margin: 0 0 20px 0;
    color: #fff;
    font-size: 20px;
}

.mixer-dialog select {
    width: 100%;
    padding: 12px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    font-size: 14px;
    margin-bottom: 20px;
    cursor: pointer;
}

.mixer-dialog select option {
    background: #1a1a2e;
    color: #fff;
}

.dialog-buttons {
    display: flex;
    gap: 10px;
}

/* 响应式 */
@media (max-width: 768px) {
    .mixer-content {
        width: 95%;
        max-height: 95vh;
    }

    .mixer-header {
        padding: 20px;
    }

    .mixer-header h2 {
        font-size: 20px;
    }

    .mixer-presets,
    .mixer-tracks,
    .mixer-controls,
    .mixer-master {
        padding: 15px 20px;
    }

    .mixer-track {
        flex-direction: column;
        align-items: flex-start;
    }

    .track-controls {
        width: 100%;
        justify-content: space-between;
    }

    .track-volume {
        flex: 1;
        min-width: 100px;
    }

    .mixer-controls {
        flex-direction: column;
    }

    .mixer-btn {
        min-width: auto;
        width: 100%;
    }

    .preset-buttons {
        flex-direction: column;
    }

    .preset-btn {
        width: 100%;
    }
}