/* ==========================================================================
   MJ · 博客外观增强
   - 固定背景图层(可调透明度)
   - 右上角"外观"面板(主题 + 背景透明度滑块)
   - 顶部导航栏
   - 首页副标题:每次打开随机一句 + 流光渐变动画
   ========================================================================== */

:root {
    --mj-accent: #8A2BE2;
    --mj-accent-2: #00c6ff;
    /* 1 = 背景图最清晰(滑块 0%),0 = 背景图完全隐藏(滑块 100%) */
    --mj-bg-opacity: 1;
    --mj-card: rgba(255, 255, 255, 0.82);
    --mj-card-border: rgba(0, 0, 0, 0.08);
    --mj-panel-bg: rgba(255, 255, 255, 0.94);
    --mj-panel-border: rgba(0, 0, 0, 0.10);
    --mj-shadow: 0 12px 40px rgba(0, 0, 0, 0.18);
    --mj-nav-bg: rgba(255, 255, 255, 0.86);
    --mj-muted: rgba(0, 0, 0, 0.55);
}

[data-color-mode="dark"] {
    --mj-card: rgba(13, 17, 23, 0.80);
    --mj-card-border: rgba(255, 255, 255, 0.10);
    --mj-panel-bg: rgba(22, 27, 34, 0.95);
    --mj-panel-border: rgba(255, 255, 255, 0.12);
    --mj-shadow: 0 12px 40px rgba(0, 0, 0, 0.55);
    --mj-nav-bg: rgba(22, 27, 34, 0.85);
    --mj-muted: rgba(255, 255, 255, 0.62);
}

/* ---------- 背景层 ---------- */
html { background-color: var(--bgColor-default, #0d1117); }

#mjBg {
    position: fixed;
    inset: 0;
    z-index: -1;
    background-image: url("/img/kali.png");
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    opacity: var(--mj-bg-opacity, 1);
    transition: opacity 0.25s ease;
    pointer-events: none;
}

/* 给背景图压一层薄纱,保证卡片外的区域也有对比度 */
#mjBg::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(120% 90% at 50% 0%, rgba(0, 0, 0, 0.10), rgba(0, 0, 0, 0.34));
}

[data-color-mode="light"] #mjBg::after {
    background: radial-gradient(120% 90% at 50% 0%, rgba(255, 255, 255, 0.10), rgba(255, 255, 255, 0.30));
}

/* ---------- 顶部导航栏 ---------- */
#mjNav {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    position: sticky;
    top: 10px;
    z-index: 30;
    margin: 0 auto 16px;
    padding: 8px 10px;
    border-radius: 999px;
    background: var(--mj-nav-bg, rgba(22, 27, 34, 0.85));
    border: 1px solid var(--mj-card-border);
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.22);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

#mjNav .mj-nav-item {
    flex: 0 0 auto;
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    color: var(--fgColor-default, inherit);
    transition: background 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

#mjNav .mj-nav-item:hover {
    background: var(--mj-accent);
    color: #fff;
    transform: translateY(-1px);
}

/* ---------- 首页副标题:流光 + 随机句子 ---------- */
.mj-subtitle {
    display: block;
    text-align: center;
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 0.5px;
    margin: 6px 0 22px;
    padding: 14px 10px;
    background: linear-gradient(90deg, var(--mj-accent-2), var(--mj-accent), #ff6ec4, var(--mj-accent-2));
    background-size: 300% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: var(--mj-accent);
    opacity: 0;                 /* 等 JS 换成随机句子后再显示,避免先闪一下固定文案 */
}

.mj-subtitle.mj-ready {
    animation: mj-flow 6s linear infinite, mj-sub-in 0.7s ease both;
}

@keyframes mj-flow {
    0% { background-position: 0% 50%; }
    100% { background-position: 300% 50%; }
}

@keyframes mj-sub-in {
    from { opacity: 0; transform: translateY(8px); filter: blur(4px); }
    to { opacity: 1; transform: translateY(0); filter: blur(0); }
}

@media (prefers-reduced-motion: reduce) {
    .mj-subtitle.mj-ready { animation: mj-sub-in 0.4s ease both; }
}

/* ---------- 外观面板 ---------- */
#mjPanel {
    position: fixed;
    right: 18px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 999;
    width: 232px;
    padding: 14px 16px;
    border-radius: 16px;
    background: var(--mj-panel-bg, rgba(22, 27, 34, 0.95));
    border: 1px solid var(--mj-panel-border);
    box-shadow: var(--mj-shadow);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    font-size: 13px;
    transition: transform 0.25s ease, opacity 0.25s ease;
}

#mjPanel.mj-collapsed {
    transform: translate(120%, -50%);
    opacity: 0;
    pointer-events: none;
}

#mjPanelToggle {
    position: fixed;
    right: 18px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1000;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--mj-panel-border);
    background: var(--mj-accent);
    color: #fff;
    font-size: 18px;
    line-height: 1;
    cursor: pointer;
    box-shadow: 0 6px 20px rgba(138, 43, 226, 0.5);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease, transform 0.25s ease;
}

#mjPanel.mj-collapsed ~ #mjPanelToggle,
#mjPanel.mj-collapsed + #mjPanelToggle {
    opacity: 1;
    pointer-events: auto;
}

#mjPanelToggle:hover { transform: translateY(-50%) scale(1.08); }

.mj-panel-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-weight: 700;
    margin-bottom: 10px;
}

.mj-panel-close {
    border: 0;
    background: transparent;
    color: var(--mj-muted);
    cursor: pointer;
    font-size: 16px;
    line-height: 1;
    padding: 2px 4px;
    border-radius: 6px;
}

.mj-panel-close:hover { color: var(--mj-accent); }

.mj-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 10px 0 6px;
}

.mj-label { color: var(--mj-muted); }

.mj-val {
    font-weight: 700;
    color: var(--mj-accent);
    font-variant-numeric: tabular-nums;
}

.mj-seg { display: flex; gap: 4px; }

.mj-seg button {
    padding: 4px 10px;
    font-size: 12px;
    border-radius: 8px;
    border: 1px solid var(--mj-panel-border);
    background: transparent;
    color: inherit;
    cursor: pointer;
    transition: all 0.15s ease;
}

.mj-seg button:hover { border-color: var(--mj-accent); }

.mj-seg button.mj-active {
    background: var(--mj-accent);
    border-color: var(--mj-accent);
    color: #fff;
}

/* 滑块:刻意做大、做亮,一眼能看到 */
.mj-range {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 10px;
    border-radius: 999px;
    outline: none;
    cursor: pointer;
    margin: 8px 0 4px;
    background: linear-gradient(90deg, var(--mj-accent-2), var(--mj-accent));
    box-shadow: inset 0 0 0 1px var(--mj-panel-border);
}

.mj-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: #fff;
    border: 3px solid var(--mj-accent);
    box-shadow: 0 0 0 4px rgba(138, 43, 226, 0.25), 0 2px 8px rgba(0, 0, 0, 0.35);
    transition: transform 0.15s ease;
}

.mj-range::-webkit-slider-thumb:hover { transform: scale(1.12); }

.mj-range::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #fff;
    border: 3px solid var(--mj-accent);
    box-shadow: 0 0 0 4px rgba(138, 43, 226, 0.25);
    cursor: pointer;
}

.mj-hint {
    color: var(--mj-muted);
    font-size: 11px;
    line-height: 1.5;
    margin-top: 4px;
}

.mj-tip {
    position: fixed;
    left: 50%;
    bottom: 22px;
    transform: translateX(-50%);
    z-index: 1001;
    padding: 8px 16px;
    border-radius: 999px;
    background: var(--mj-accent);
    color: #fff;
    font-size: 13px;
    box-shadow: 0 8px 24px rgba(138, 43, 226, 0.45);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.mj-tip.mj-show { opacity: 1; }

/* ---------- 列表 / 卡片细节优化 ---------- */
.SideNav.border {
    border-radius: 14px;
    overflow: hidden;
    background: color-mix(in srgb, var(--mj-card, rgba(22, 27, 34, 0.8)) 65%, transparent);
}

.SideNav-item {
    transition: background 0.16s ease, padding-left 0.16s ease;
}

.SideNav-item:hover {
    background: color-mix(in srgb, var(--mj-accent) 16%, transparent);
    padding-left: 10px;
}

.Label {
    border-radius: 999px !important;
    padding: 0 8px;
    font-weight: 600;
    letter-spacing: 0.2px;
}

.btn.circle {
    border-radius: 50%;
    transition: background 0.18s ease, transform 0.18s ease;
}

.btn.circle:hover {
    background: color-mix(in srgb, var(--mj-accent) 22%, transparent);
    transform: translateY(-1px);
}

.pagination a,
.pagination span {
    border-radius: 10px !important;
}

#content img { border-radius: 8px; }

#postBody img { box-shadow: 0 4px 18px rgba(0, 0, 0, 0.28); }

/* 滚动条 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
    background: color-mix(in srgb, var(--mj-accent) 55%, transparent);
    border-radius: 999px;
    border: 2px solid transparent;
    background-clip: content-box;
}
::-webkit-scrollbar-thumb:hover { background: var(--mj-accent); background-clip: content-box; }

/* ---------- 兜底:即使 Primer 没加载,文字/图标也要看得清 ---------- */
body {
    color: var(--fgColor-default, #e6edf3);
}

[data-color-mode="light"] body {
    color: var(--fgColor-default, #1f2328);
}

a {
    color: var(--fgColor-accent, #58a6ff);
    text-decoration: none;
}

[data-color-mode="light"] a {
    color: var(--fgColor-accent, #0969da);
}

.octicon {
    fill: currentColor;
    display: inline-block;
    overflow: visible;
    vertical-align: text-bottom;
}

.d-flex { display: flex; }
.flex-items-center { align-items: center; }
.flex-justify-between { justify-content: space-between; }
.flex-auto { flex: auto; }

.SideNav-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 8px 12px;
    color: inherit;
    text-decoration: none;
}

.SideNav-item .listTitle { color: inherit; }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 5px 8px;
    border: 0;
    background: transparent;
    color: inherit;
    cursor: pointer;
    border-radius: 6px;
}

.form-control {
    padding: 5px 12px;
    border: 1px solid var(--mj-panel-border, rgba(255, 255, 255, 0.15));
    border-radius: 6px;
    background: transparent;
    color: inherit;
}

.pagination {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    margin-top: 16px;
}

.pagination a,
.pagination span {
    display: inline-block;
    padding: 6px 14px;
    border: 1px solid var(--mj-card-border, rgba(255, 255, 255, 0.12));
    text-decoration: none;
}

/* ---------- 友链页卡片网格 ----------
   GitHub 的 Markdown 渲染会剥掉 class,所以只能靠结构选择器;
   body 上的 .mj-friends 由 mj.js 按 URL 判断后加上,样式只在这个页面生效。 */
.mj-friends #postBody > div {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(252px, 1fr));
    gap: 12px;
    margin: 18px 0 28px;
}

.mj-friends #postBody > div > a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border: 1px solid var(--mj-card-border, rgba(255, 255, 255, 0.12));
    border-radius: 14px;
    background: color-mix(in srgb, var(--mj-card, #161b22) 60%, transparent);
    color: inherit;
    text-decoration: none;
    overflow: hidden;
    transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.mj-friends #postBody > div > a:hover {
    transform: translateY(-2px);
    border-color: var(--mj-accent);
    box-shadow: 0 10px 26px rgba(138, 43, 226, 0.28);
}

.mj-friends #postBody > div > a img {
    /* GitHub 渲染时会往 img 上塞内联 style(border-radius:6px / 灰色底),这里压回统一外观 */
    width: 52px !important;
    height: 52px !important;
    flex: 0 0 52px;
    border-radius: 12px !important;
    background: rgba(255, 255, 255, 0.06) !important;
    object-fit: cover;
    margin: 0;
    box-shadow: none;
}

.mj-friends #postBody > div > a > span {
    display: flex;
    flex-direction: column;
    min-width: 0;
    line-height: 1.4;
}

.mj-friends #postBody > div > a > span > span:nth-child(1) {
    font-size: 15px;
    font-weight: 700;
    color: var(--fgColor-default, #e6edf3);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.mj-friends #postBody > div > a > span > span:nth-child(2) {
    font-size: 12.5px;
    color: var(--mj-muted);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.mj-friends #postBody > div > a > span > span:nth-child(3) {
    margin-top: 2px;
    font-size: 11.5px;
    color: var(--mj-accent);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

@media (max-width: 640px) {
    .mj-friends #postBody > div { grid-template-columns: 1fr; }
}

/* ---------- 中等宽度:面板改成贴底,避免压住正文 ---------- */
@media (max-width: 1400px) {
    #mjPanel {
        right: 50%;
        top: auto;
        bottom: 14px;
        transform: translateX(50%);
        width: min(92vw, 320px);
    }

    #mjPanel.mj-collapsed { transform: translate(50%, 160%); }

    #mjPanelToggle {
        right: 16px;
        top: auto;
        bottom: 16px;
        transform: none;
    }

    #mjPanelToggle:hover { transform: scale(1.08); }

    /* 面板展开时给正文留出空间,别压住最后一屏内容 */
    body.mj-panel-open { padding-bottom: 200px; }
}

/* ---------- 小屏适配 ---------- */
@media (max-width: 760px) {
    #mjNav {
        border-radius: 14px;
        top: 6px;
        padding: 6px;
        gap: 2px;
    }

    #mjNav .mj-nav-item { padding: 5px 10px; font-size: 13px; }

    .mj-subtitle { font-size: 18px; padding: 10px 4px; }

    #mjPanel { width: min(88vw, 300px); font-size: 12px; }

    #mjPanelToggle { width: 36px; height: 36px; font-size: 16px; }

    body.mj-panel-open { padding-bottom: 190px; }
}