/**
 * YouTube 纯净自定义播放器样式
 * 
 * @package WP_LMS
 */

.lms-youtube-custom-player {
    position: relative;
    width: 100%;
    background: #000;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.lms-youtube-container {
    position: relative;
    width: 100%;
    height: 400px; /* 固定高度而不是比例 */
    background: #000;
    min-height: 300px;
    overflow: hidden; /* 隐藏溢出的YouTube界面元素 */
}

.lms-youtube-iframe {
    position: absolute;
    top: -80px; /* 向上偏移隐藏YouTube标题 */
    left: 0;
    width: 100%;
    height: calc(100% + 160px); /* 增加高度以补偿偏移和隐藏底部 */
    overflow: hidden;
}

.lms-youtube-iframe iframe {
    width: 100% !important;
    height: 100% !important;
    border: none !important;
    pointer-events: none; /* 禁用直接点击 */
}

.lms-youtube-controls {
    display: flex !important;
    align-items: center;
    background: linear-gradient(to bottom, rgba(0,0,0,0.8), rgba(0,0,0,0.9));
    padding: 12px 16px;
    gap: 12px;
    color: #fff;
    font-size: 14px;
    position: relative;
    z-index: 1000;
    width: 100%;
    box-sizing: border-box;
}

.lms-play-pause-btn {
    background: none;
    border: none;
    color: #fff;
    cursor: pointer;
    padding: 8px;
    border-radius: 4px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lms-play-pause-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.lms-play-pause-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.lms-play-pause-btn .dashicons {
    font-size: 20px;
    width: 20px;
    height: 20px;
}

.lms-progress-container {
    flex: 1;
    margin: 0 16px;
}

.lms-progress-track {
    position: relative;
    height: 6px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 3px;
    cursor: pointer;
    overflow: hidden;
}

.lms-progress-watched-track {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 3px;
    transition: width 0.1s ease;
    z-index: 1;
}

.lms-progress-current-track {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    background: #ff6b6b;
    border-radius: 3px;
    transition: width 0.1s ease;
    z-index: 2;
}

.lms-progress-handle {
    position: absolute;
    top: 50%;
    width: 14px;
    height: 14px;
    background: #ff6b6b;
    border: 2px solid #fff;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    cursor: pointer;
    transition: all 0.2s ease;
    z-index: 3;
}

.lms-progress-track:hover .lms-progress-handle {
    transform: translate(-50%, -50%) scale(1.2);
    box-shadow: 0 2px 8px rgba(255, 107, 107, 0.5);
}

.lms-time-display {
    font-family: 'Courier New', monospace;
    font-size: 13px;
    color: #ccc;
    min-width: 80px;
    text-align: center;
}

.lms-volume-control {
    display: flex;
    align-items: center;
    gap: 8px;
}

.lms-volume-btn {
    background: none;
    border: none;
    color: #fff;
    cursor: pointer;
    padding: 6px;
    border-radius: 4px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lms-volume-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.lms-volume-btn .dashicons {
    font-size: 18px;
    width: 18px;
    height: 18px;
}

/* 错误显示样式 */
.lms-youtube-error {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

.lms-youtube-error h3 {
    font-weight: 600;
    font-size: 20px;
}

.lms-youtube-error p {
    font-size: 14px;
    line-height: 1.5;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .lms-youtube-controls {
        padding: 10px 12px;
        gap: 8px;
        font-size: 13px;
    }
    
    .lms-progress-container {
        margin: 0 12px;
    }
    
    .lms-play-pause-btn .dashicons {
        font-size: 18px;
        width: 18px;
        height: 18px;
    }
    
    .lms-volume-btn .dashicons {
        font-size: 16px;
        width: 16px;
        height: 16px;
    }
    
    .lms-time-display {
        font-size: 12px;
        min-width: 70px;
    }
}

@media (max-width: 480px) {
    .lms-youtube-controls {
        padding: 8px 10px;
        gap: 6px;
        font-size: 12px;
    }
    
    .lms-progress-container {
        margin: 0 8px;
    }
    
    .lms-progress-handle {
        width: 12px;
        height: 12px;
    }
    
    .lms-time-display {
        font-size: 11px;
        min-width: 60px;
    }
}

/* 焦点状态 */
.lms-play-pause-btn:focus,
.lms-volume-btn:focus {
    outline: 2px solid #ff6b6b;
    outline-offset: 2px;
}

/* 加载状态 */
.lms-youtube-custom-player.loading .lms-youtube-container::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 40px;
    height: 40px;
    margin: -20px 0 0 -20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top: 3px solid #ff6b6b;
    border-radius: 50%;
    animation: lms-youtube-spin 1s linear infinite;
}

@keyframes lms-youtube-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
    .lms-progress-watched-track {
        background: rgba(255, 255, 255, 0.8);
    }
    
    .lms-progress-current-track,
    .lms-progress-handle {
        background: #fff;
    }
    
    .lms-youtube-controls {
        background: #000;
        border-top: 1px solid #333;
    }
}

/* 减少动画效果（用户偏好） */
@media (prefers-reduced-motion: reduce) {
    .lms-progress-watched-track,
    .lms-progress-current-track,
    .lms-progress-handle,
    .lms-play-pause-btn,
    .lms-volume-btn {
        transition: none;
    }
    
    .lms-youtube-custom-player.loading .lms-youtube-container::after {
        animation: none;
    }
}

/* 纯净模式 - 通过偏移隐藏YouTube界面元素 */

/* 重新启用我们自定义控件的点击 */
.lms-youtube-custom-player .lms-youtube-controls {
    pointer-events: auto;
    position: relative;
    z-index: 1000;
}

.lms-youtube-custom-player .lms-youtube-controls * {
    pointer-events: auto;
}

/* 完全覆盖YouTube播放器，防止显示官方界面 */
.lms-youtube-iframe::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 40px; /* 留出底部空间避免覆盖视频内容 */
    background: transparent;
    z-index: 10;
    pointer-events: none;
}

/* 使用CSS隐藏YouTube原生界面的特定元素 */
.lms-youtube-iframe iframe[src*="youtube.com"] {
    /* 额外的样式来确保纯净显示 */
    border: none !important;
}

/* 创建纯净的视频显示区域 */
.lms-youtube-custom-player {
    /* 确保我们的播放器容器在最上层 */
    position: relative;
    z-index: 1;
}

/* 自定义控件始终可见和可交互 */
.lms-youtube-controls {
    position: relative;
    z-index: 1001;
    pointer-events: auto;
}

/* 确保播放器容器正确处理YouTube iframe */
.lms-youtube-container {
    overflow: hidden;
    position: relative;
}

/* 额外的纯净模式样式 */
.lms-youtube-iframe {
    border-radius: 8px 8px 0 0; /* 只在顶部有圆角 */
    overflow: hidden;
}

/* 防止YouTube控制栏显示 */
.lms-youtube-iframe iframe {
    /* 通过负边距隐藏可能的YouTube控制栏 */
    margin-bottom: -10px;
    height: calc(100% + 10px);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .lms-youtube-iframe::after {
        bottom: 35px; /* 移动设备上调整覆盖区域 */
    }
}

/* 纯净模式的额外样式 */
.lms-youtube-clean-mode {
    /* 确保纯净模式下的样式优先级 */
    position: relative;
}

.lms-youtube-clean-mode .lms-youtube-container {
    /* 隐藏可能的YouTube控制栏 */
    overflow: hidden;
    background: #000;
}

.lms-youtube-clean-mode iframe {
    /* 完全禁用YouTube界面的交互 */
    pointer-events: none !important;
    /* 隐藏可能的滚动条 */
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.lms-youtube-clean-mode iframe::-webkit-scrollbar {
    display: none;
}

/* YouTube遮罩层 */
.lms-youtube-overlay {
    cursor: pointer;
    background: rgba(0, 0, 0, 0); /* 完全透明但可点击 */
}

.lms-youtube-overlay:hover {
    background: rgba(0, 0, 0, 0.1); /* 悬停时稍微显示 */
    transition: background 0.2s ease;
}

/* 强制隐藏任何可能的YouTube UI元素 */
.lms-youtube-clean-mode iframe[src*="youtube.com"] {
    /* 额外的清理样式 */
    filter: none !important;
    transform: none !important;
    /* 防止任何YouTube的叠加层显示 */
    clip-path: none !important;
}

/* 确保自定义控件始终可见和功能正常 */
.lms-youtube-clean-mode .lms-youtube-controls {
    background: linear-gradient(to bottom, rgba(0,0,0,0.8), rgba(0,0,0,0.95));
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
}

/* 增强纯净模式的视觉效果 */
.lms-youtube-clean-mode .lms-youtube-custom-player {
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* YouTube播放器加载状态样式 */
.lms-youtube-custom-player.loading {
    background: #000;
    border-radius: 8px;
    overflow: hidden;
    min-height: 450px;
    margin: 20px 0;
}

.lms-youtube-container {
    position: relative;
    width: 100%;
    height: 400px;
    background: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 16px;
}

.lms-loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top: 3px solid #ff6b6b;
    border-radius: 50%;
    animation: lms-spin 1s linear infinite;
    margin: 0 auto 20px;
}

.lms-loading-content p {
    margin: 0;
    opacity: 0.8;
}

.lms-youtube-controls {
    display: flex;
    align-items: center;
    background: linear-gradient(to bottom, rgba(0,0,0,0.8), rgba(0,0,0,0.9));
    padding: 12px 16px;
    gap: 12px;
    color: #fff;
    font-size: 14px;
}

.lms-play-pause-btn {
    background: none;
    border: none;
    color: #fff;
    cursor: pointer;
    padding: 8px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lms-play-pause-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.lms-play-pause-btn .dashicons {
    font-size: 20px;
}

.lms-progress-container {
    flex: 1;
    margin: 0 16px;
}

.lms-progress-track {
    position: relative;
    height: 6px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 3px;
    cursor: pointer;
}

.lms-progress-watched-track {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 3px;
    width: 0%;
}

.lms-progress-current-track {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    background: #ff6b6b;
    border-radius: 3px;
    width: 0%;
}

.lms-progress-handle {
    position: absolute;
    top: 50%;
    width: 14px;
    height: 14px;
    background: #ff6b6b;
    border: 2px solid #fff;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    left: 0%;
}

.lms-time-display {
    font-family: 'Courier New', monospace;
    font-size: 13px;
    color: #ccc;
    min-width: 80px;
    text-align: center;
}

.lms-volume-btn {
    background: none;
    border: none;
    color: #fff;
    cursor: pointer;
    padding: 6px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lms-volume-btn .dashicons {
    font-size: 18px;
}