/* docs/stylesheets/extra.css */

/* 用于点击加载的 Bilibili 占位符样式 */
.bili-placeholder {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 宽高比 */
    height: 0;
    overflow: hidden;
    margin-top: 1em;
    margin-bottom: 1em;
    background-color: #000;
    cursor: pointer; /* 鼠标悬停时显示为可点击的手指 */
    transition: background-color 0.2s ease;
}

.bili-placeholder:hover {
    background-color: #111; /* 鼠标悬停时背景变亮一点 */
}

.bili-placeholder .bili-play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    transition: transform 0.2s ease;
}

.bili-placeholder:hover .bili-play-button {
    transform: translate(-50%, -50%) scale(1.1); /* 鼠标悬停时播放按钮放大 */
}

/* 视频加载后，让 iframe 充满容器 */
.bili-placeholder iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.bili-placeholder video,
.bili-placeholder iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}
/* 图片居中样式 */
.center {
    display: block !important;
    margin-left: auto !important;
    margin-right: auto !important;
}
/* 文字颜色工具类 */
.text-primary { color: var(--md-primary-fg-color, #4051b5) !important; }
.text-accent { color: var(--md-accent-fg-color, #ff5252) !important; }
.text-success { color: #4caf50 !important; }
.text-warning { color: #ff9800 !important; }
.text-error { color: #f44336 !important; }
.text-info { color: #2196f3 !important; }

/* 背景色工具类 */
.bg-success { background-color: #e8f5e9 !important; padding: 2px 6px; border-radius: 3px; }
.bg-warning { background-color: #fff3e0 !important; padding: 2px 6px; border-radius: 3px; }
.bg-error { background-color: #ffebee !important; padding: 2px 6px; border-radius: 3px; }
.bg-info { background-color: #e3f2fd !important; padding: 2px 6px; border-radius: 3px; }

/* 标签样式 */
.tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 0.8em;
  font-weight: bold;
  margin: 0 2px;
}

.tag-new { background: #e3f2fd; color: #1565c0; }
.tag-hot { background: #ffebee; color: #c62828; }
.tag-done { background: #e8f5e9; color: #2e7d32; }

/* 让"第三部分 功能介绍"部分的子节点默认折叠 */
/* 注意：主要通过 JavaScript 控制，CSS 仅作为备用 */
/* Material for MkDocs 会自动处理 .md-nav__item--active 类的显示/隐藏 */

/* 视频播放设置按钮样式 */
.video-setting-container {
    position: relative;
    display: inline-flex;
    align-items: center;
    margin-left: 0.5rem;
}

.video-setting-button {
    background-color: transparent;
    border: none;
    cursor: pointer;
    padding: 0.35rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--md-default-fg-color, rgba(0, 0, 0, 0.87));
    border-radius: 0.35rem;
    font-size: 0.875rem;
    line-height: 1;
    transition: background-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.video-setting-button svg {
    width: 1.25rem;
    height: 1.25rem;
}

.video-setting-button:hover {
    background-color: var(--md-default-fg-color--lightest, rgba(0, 0, 0, 0.06));
}

.video-setting-button:focus-visible {
    outline: none;
    box-shadow: 0 0 0 2px var(--md-primary-fg-color, #4051b5);
}

[data-md-color-scheme="slate"] .video-setting-button {
    color: var(--md-default-fg-color, rgba(255, 255, 255, 0.87));
}

[data-md-color-scheme="slate"] .video-setting-button:hover {
    background-color: var(--md-default-fg-color--lightest, rgba(255, 255, 255, 0.12));
}

[data-md-color-scheme="slate"] .video-setting-button:focus-visible {
    box-shadow: 0 0 0 2px var(--md-primary-fg-color, #64b5f6);
}

.video-setting-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 0.5rem;
    background: var(--md-default-bg-color, #fff);
    border: 1px solid var(--md-default-fg-color--lightest, rgba(0, 0, 0, 0.12));
    border-radius: 0.4rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    min-width: 220px;
    z-index: 1000;
    overflow: hidden;
}

[data-md-color-scheme="slate"] .video-setting-dropdown {
    background: var(--md-default-bg-color, #1e1e1e);
    border-color: var(--md-default-fg-color--lightest, rgba(255, 255, 255, 0.12));
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.video-setting-option {
    padding: 0.5rem 0.8rem;
    cursor: pointer;
    transition: background-color 0.2s ease;
    border-bottom: 1px solid var(--md-default-fg-color--lightest, rgba(0, 0, 0, 0.12));
}

.video-setting-option:last-child {
    border-bottom: none;
}

.video-setting-option:hover {
    background-color: var(--md-default-fg-color--lightest, rgba(0, 0, 0, 0.05));
}

[data-md-color-scheme="slate"] .video-setting-option {
    border-bottom-color: var(--md-default-fg-color--lightest, rgba(255, 255, 255, 0.12));
}

[data-md-color-scheme="slate"] .video-setting-option:hover {
    background-color: var(--md-default-fg-color--lightest, rgba(255, 255, 255, 0.1));
}

.video-setting-option.active {
    background-color: var(--md-primary-fg-color--light, rgba(64, 81, 181, 0.1));
    font-weight: 500;
}

[data-md-color-scheme="slate"] .video-setting-option.active {
    background-color: var(--md-primary-fg-color--light, rgba(100, 181, 246, 0.15));
}

.video-setting-option .option-label {
    font-size: 0.75rem;
    color: var(--md-default-fg-color, rgba(0, 0, 0, 0.87));
    margin-bottom: 0.15rem;
    font-weight: 500;
}

[data-md-color-scheme="slate"] .video-setting-option .option-label {
    color: var(--md-default-fg-color, rgba(255, 255, 255, 0.87));
}

.video-setting-option .option-desc {
    font-size: 0.65rem;
    color: rgba(0, 0, 0, 0.66);
    line-height: 1.25;
}

[data-md-color-scheme="slate"] .video-setting-option .option-desc {
    color: rgba(255, 255, 255, 0.65);
}

/* 在移动端调整位置 */
@media screen and (max-width: 76.1875em) {
    .video-setting-container {
        margin-left: 0.25rem;
    }
    
    .video-setting-dropdown {
        right: 0;
        min-width: 200px;
    }
}

/* B站视频卡顿提示样式 */
@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.lag-warning {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(0, 0, 0, 0.85);
    color: white;
    padding: 12px 16px;
    border-radius: 8px;
    z-index: 1000;
    max-width: 300px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    animation: slideIn 0.3s ease-out;
}

.lag-warning-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

.lag-warning-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.lag-warning-text {
    flex: 1;
}

.lag-warning-title {
    font-weight: bold;
    margin-bottom: 4px;
    font-size: 14px;
}

.lag-warning-desc {
    font-size: 12px;
    opacity: 0.9;
    line-height: 1.4;
}

.lag-warning-button {
    background: #00a1d6;
    color: white;
    border: none;
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    flex-shrink: 0;
    transition: background 0.2s;
}

.lag-warning-button:hover {
    background: #0085b3;
}