/* ===================================================================
   kpbot's blog — 科技蓝风格（github-style 主题适配）
   亮色：浅蓝白 / 暗色：深蓝黑，两套独立
   =================================================================== */

/* ---------- 暗色：深蓝黑 + 科技蓝 ---------- */
:root[data-scheme="dark"],
[data-color-mode="dark"] {
    --color-canvas-default: #0b1220;
    --color-canvas-inset: #090f1a;
    --color-canvas-subtle: #16233d;
    --color-canvas-overlay: #16233d;
    --color-fg-default: #e2e9f7;
    --color-fg-muted: #9db1d0;
    --color-fg-subtle: #55688c;
    --color-accent-fg: #3b82f6;
    --color-accent-emphasis: #3b82f6;
    --color-accent-muted: rgba(59, 130, 246, 0.16);
    --color-border-default: rgba(59, 130, 246, 0.22);
    --color-border-muted: rgba(59, 130, 246, 0.12);
    --color-header-bg: #0d1628;
    --color-header-text: #38bdf8;
    --color-header-logo: #38bdf8;
    --color-header-search-bg: #0b1220;
    --color-header-search-border: rgba(59, 130, 246, 0.3);
    --color-btn-bg: #16233d;
    --color-btn-border: rgba(59, 130, 246, 0.3);
    --color-btn-hover-bg: rgba(59, 130, 246, 0.12);
    --color-btn-text: #38bdf8;
    --color-markdown-code-bg: #16233d;
    --color-bg-canvas: #0b1220;
    --color-bg-primary: #0b1220;
    --color-bg-secondary: #16233d;
    --color-text-primary: #e2e9f7;
    --color-text-secondary: #9db1d0;
    --color-text-tertiary: #55688c;
    --color-border-primary: rgba(59, 130, 246, 0.22);
    --color-border-secondary: rgba(59, 130, 246, 0.12);
    --color-box-border: rgba(59, 130, 246, 0.22);
    --color-social-bg: #16233d;
    --color-link-fg: #38bdf8;
    --color-link-hover: #3b82f6;
    --body-background: #0b1220;
    --card-background: #16233d;
    --card-text-color-main: #e2e9f7;
    --card-text-color-secondary: #9db1d0;
    --card-text-color-tertiary: #55688c;
    --accent-color: #3b82f6;
}

/* ---------- 亮色：浅蓝白 + 科技蓝 ---------- */
:root[data-scheme="light"],
[data-color-mode="light"] {
    --color-canvas-default: #f8fafc;
    --color-canvas-inset: #f1f5f9;
    --color-canvas-subtle: #e8eef6;
    --color-canvas-overlay: #ffffff;
    --color-fg-default: #1e293b;
    --color-fg-muted: #475569;
    --color-fg-subtle: #7c8ba1;
    --color-accent-fg: #2563eb;
    --color-accent-emphasis: #2563eb;
    --color-accent-muted: rgba(37, 99, 235, 0.10);
    --color-border-default: rgba(37, 99, 235, 0.18);
    --color-border-muted: rgba(37, 99, 235, 0.10);
    --color-header-bg: #ffffff;
    --color-header-text: #2563eb;
    --color-header-logo: #2563eb;
    --color-header-search-bg: #f8fafc;
    --color-header-search-border: rgba(37, 99, 235, 0.25);
    --color-btn-bg: #ffffff;
    --color-btn-border: rgba(37, 99, 235, 0.25);
    --color-btn-hover-bg: rgba(37, 99, 235, 0.08);
    --color-btn-text: #2563eb;
    --color-markdown-code-bg: #f1f5f9;
    --color-bg-canvas: #f8fafc;
    --color-bg-primary: #f8fafc;
    --color-bg-secondary: #ffffff;
    --color-text-primary: #1e293b;
    --color-text-secondary: #475569;
    --color-text-tertiary: #7c8ba1;
    --color-border-primary: rgba(37, 99, 235, 0.18);
    --color-border-secondary: rgba(37, 99, 235, 0.10);
    --color-box-border: rgba(37, 99, 235, 0.18);
    --color-social-bg: #ffffff;
    --color-link-fg: #2563eb;
    --color-link-hover: #1d4ed8;
    --body-background: #f8fafc;
    --card-background: #ffffff;
    --card-text-color-main: #1e293b;
    --card-text-color-secondary: #475569;
    --card-text-color-tertiary: #7c8ba1;
    --accent-color: #2563eb;
}

/* ---------- 页面背景：科技感光晕 ---------- */
body {
    background:
        radial-gradient(700px 450px at 15% -5%, rgba(37, 99, 235, 0.08), transparent 60%),
        radial-gradient(600px 400px at 90% 5%, rgba(14, 165, 233, 0.06), transparent 60%),
        radial-gradient(800px 500px at 50% 105%, rgba(59, 130, 246, 0.05), transparent 60%),
        var(--body-background) !important;
    background-attachment: fixed;
    color: var(--color-text-primary);
    font-family: Inter, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, sans-serif;
}

/* ---------- 顶部导航 ---------- */
header .Header {
    background: var(--color-header-bg);
    border-bottom: 1px solid var(--color-border-default);
}

/* ---------- markdown 正文 ---------- */
.markdown-body {
    color: var(--color-text-primary);
    font-family: Inter, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, sans-serif;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4 {
    color: var(--color-accent-fg);
    border-bottom: 1px dashed var(--color-border-default);
}

.markdown-body a {
    color: var(--color-link-fg);
}

.markdown-body a:hover {
    color: var(--color-link-hover);
    text-decoration: underline;
}

.markdown-body code {
    background: var(--color-canvas-subtle);
    border: 1px solid var(--color-border-muted);
    color: #0ea5e9;
    border-radius: 4px;
}

.markdown-body pre {
    background: var(--color-canvas-subtle);
    border: 1px solid var(--color-border-default);
    border-radius: 8px;
}

.markdown-body pre code {
    border: none;
    color: var(--color-text-primary);
}

.markdown-body blockquote {
    color: var(--color-text-secondary);
    border-left: 3px solid var(--color-accent-fg);
    background: var(--color-accent-muted);
}

.markdown-body table th {
    color: var(--color-accent-fg);
    background: var(--color-canvas-subtle);
    border: 1px solid var(--color-border-default);
}

.markdown-body table td {
    border: 1px solid var(--color-border-muted);
    color: var(--color-text-secondary);
}

/* ---------- 文章列表 ---------- */
.post-list .post-item {
    border-bottom: 1px dashed var(--color-border-default);
}

.post-list .post-item a {
    color: var(--color-link-fg);
}

.post-list .post-item a:hover {
    color: var(--color-link-hover);
}

/* ---------- 标签 ---------- */
.tags a.muted-link {
    color: var(--color-link-fg);
}

.tags a.muted-link:hover {
    color: var(--color-link-hover);
}

/* ---------- 用户侧边栏 ---------- */
.user-profile .border {
    border-color: var(--color-border-default) !important;
}

/* ===================================================================
   交互终端组件（科技蓝）
   =================================================================== */
.hacker-terminal {
    margin: 2rem 0;
    background: var(--color-canvas-subtle) !important;
    border: 1px solid var(--color-border-default);
    border-radius: 12px;
    overflow: hidden;
    font-family: "JetBrains Mono", Menlo, Consolas, monospace;
}

.hacker-terminal .term-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    background: var(--color-canvas-overlay);
    border-bottom: 1px solid var(--color-border-muted);
}

.hacker-terminal .term-dot {
    width: 11px;
    height: 11px;
    border-radius: 50%;
    display: inline-block;
}

.hacker-terminal .dot-red    { background: #ef4444; }
.hacker-terminal .dot-yellow { background: #f59e0b; }
.hacker-terminal .dot-green  { background: #22c55e; }

.hacker-terminal .term-title {
    margin-left: 8px;
    color: var(--color-fg-subtle);
    font-size: 0.82em;
}

.hacker-terminal .term-body {
    padding: 14px 16px;
    min-height: 240px;
    max-height: 420px;
    overflow-y: auto;
    background: var(--color-canvas-subtle) !important;
}

.hacker-terminal .term-content {
    margin: 0;
    color: var(--color-accent-fg);
    background: transparent !important;
    font-size: 0.9em;
    line-height: 1.7;
    white-space: pre-wrap;
    word-break: break-all;
}

.hacker-terminal .cmd-line { color: var(--color-accent-fg); }
.hacker-terminal .out-line { color: var(--color-fg-muted); }
.hacker-terminal .ok-line  { color: #22c55e; }
.hacker-terminal .err-line { color: #ef4444; }

.hacker-terminal .term-prompt {
    color: var(--color-accent-fg);
    font-weight: 700;
}

.hacker-terminal .term-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--color-text-primary);
    font-family: inherit;
    font-size: 0.9em;
    line-height: 1.7;
    caret-color: var(--color-accent-fg);
    padding: 0;
}

.hacker-terminal .term-input::placeholder {
    color: var(--color-fg-subtle);
}

.hacker-terminal .term-cursor {
    display: inline-block;
    width: 8px;
    height: 1em;
    margin-left: 2px;
    background: var(--color-accent-fg);
    vertical-align: text-bottom;
    animation: term-blink 1s steps(2) infinite;
}

@keyframes term-blink {
    0%, 100% { opacity: 1; }
    50%      { opacity: 0; }
}

/* ===================================================================
   首页组件
   =================================================================== */

/* 统计 */
.site-stats {
    display: flex;
    gap: 0;
    margin: 1rem 0 1.5rem;
    border: 1px solid var(--color-border-default);
    border-radius: 10px;
    overflow: hidden;
}

.site-stats .stat-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 0.8rem 1rem;
    background: var(--color-canvas-overlay);
    border-right: 1px solid var(--color-border-muted);
}

.site-stats .stat-item:last-child {
    border-right: none;
}

.site-stats .stat-num {
    font-size: 1.25em;
    font-weight: 700;
    color: var(--color-accent-fg);
    font-family: "JetBrains Mono", Menlo, monospace;
}

.site-stats .stat-label {
    font-size: 0.75em;
    color: var(--color-fg-subtle);
}

/* 最近文章 */
.recent-post-item {
    display: flex;
    align-items: baseline;
    gap: 1rem;
    padding: 0.45rem 0;
    border-bottom: 1px dashed var(--color-border-default);
}

.recent-post-item:last-child {
    border-bottom: none;
}

.recent-post-date {
    font-size: 0.78em;
    color: var(--color-accent-fg);
    font-family: "JetBrains Mono", Menlo, monospace;
}

.recent-post-cat {
    font-size: 0.72em;
    padding: 1px 8px;
    border: 1px solid var(--color-border-default);
    border-radius: 10px;
    color: var(--color-accent-fg);
}

/* 技能徽章 */
.skill-badge {
    display: inline-block;
    margin: 0.2rem 0.4rem 0.2rem 0;
    padding: 3px 12px;
    font-size: 0.85em;
    color: var(--color-accent-fg);
    background: var(--color-accent-muted);
    border: 1px solid var(--color-border-default);
    border-radius: 14px;
    transition: all 0.2s ease;
}

.skill-badge:hover {
    background: var(--color-accent-muted);
    border-color: var(--color-accent-fg);
    transform: translateY(-1px);
}

/* 学习Doc Group 卡片 */
.study-groups {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.study-group-card {
    display: block;
    padding: 1.1rem 1.2rem;
    background: var(--color-canvas-overlay) !important;
    border: 1px solid var(--color-border-default) !important;
    border-radius: 12px !important;
    transition: all 0.2s ease !important;
}

.study-group-card:hover {
    background: var(--color-accent-muted) !important;
    border-color: var(--color-accent-fg) !important;
    transform: translateY(-2px);
}

.study-group-title {
    margin: 0;
    font-size: 0.98em;
    color: var(--color-accent-fg);
}

.study-group-count {
    font-size: 0.72em;
    padding: 1px 10px;
    border: 1px solid var(--color-border-default);
    border-radius: 10px;
    color: var(--color-accent-fg);
    font-family: "JetBrains Mono", Menlo, monospace;
}

.study-group-desc {
    margin: 0.4rem 0 0.6rem;
    font-size: 0.84em;
    color: var(--color-fg-subtle);
    line-height: 1.6;
}

.study-group-tag {
    font-size: 0.7em;
    padding: 1px 10px;
    border: 1px solid var(--color-border-default);
    border-radius: 10px;
    color: var(--color-link-fg);
}

/* 首页面板 */
.home-content {
    padding: 1.2rem 1.4rem;
    margin-bottom: 1.5rem;
}

.home-content h2 {
    font-size: 1.05em;
    font-weight: 700;
    color: var(--color-accent-fg);
    border-bottom: 1px dashed var(--color-border-default);
    padding-bottom: 0.4rem;
    margin-top: 1.5rem;
}

/* ===================================================================
   玩具组件
   =================================================================== */

/* 滚动进度条 */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    width: 0;
    background: linear-gradient(90deg, #2563eb, #0ea5e9, #38bdf8);
    z-index: 9999;
    pointer-events: none;
}

/* 回顶按钮 */
.back-to-top {
    position: fixed;
    right: 24px;
    bottom: 24px;
    width: 40px;
    height: 40px;
    background: var(--color-canvas-overlay);
    border: 1px solid var(--color-border-default);
    border-radius: 50%;
    color: var(--color-accent-fg);
    font-size: 16px;
    cursor: pointer;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, all 0.2s ease;
    z-index: 998;
}

.back-to-top.show {
    opacity: 1;
    pointer-events: auto;
}

.back-to-top:hover {
    background: var(--color-accent-fg);
    color: #fff;
    border-color: var(--color-accent-fg);
    box-shadow: 0 0 14px rgba(37, 99, 235, 0.5);
}

/* 点击波纹 */
.click-ripple {
    position: fixed;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 1px solid rgba(37, 99, 235, 0.6);
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%) scale(0);
    animation: ripple 0.55s ease-out forwards;
}

@keyframes ripple {
    to {
        transform: translate(-50%, -50%) scale(6);
        opacity: 0;
    }
}

/* 滚动渐入 */
.reveal-hidden {
    opacity: 0;
    transform: translateY(14px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal-visible {
    opacity: 1;
    transform: translateY(0);
}

/* 代码复制按钮 */
.code-copy-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    padding: 3px 10px;
    font-size: 0.75em;
    font-family: "JetBrains Mono", Menlo, monospace;
    color: var(--color-fg-subtle);
    background: var(--color-canvas-overlay);
    border: 1px solid var(--color-border-default);
    border-radius: 6px;
    cursor: pointer;
    opacity: 0;
    transition: all 0.2s ease;
    z-index: 2;
}

pre:hover .code-copy-btn,
.code-copy-btn:focus {
    opacity: 1;
}

.code-copy-btn:hover {
    color: var(--color-accent-fg);
    border-color: var(--color-accent-fg);
}

/* 选中 */
::selection {
    background: var(--color-accent-muted);
    color: inherit;
}

/* 滚动条 */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--color-canvas-inset);
}

::-webkit-scrollbar-thumb {
    background: var(--color-border-default);
    border-radius: 5px;
    border: 2px solid var(--color-canvas-inset);
    background-clip: padding-box;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent-fg);
    background-clip: padding-box;
    border: 2px solid var(--color-canvas-inset);
}

/* 站点名 */
.site-name a {
    color: var(--color-accent-fg);
}

.site-name a:hover {
    color: var(--color-link-hover);
}

/* 减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
    .reveal-hidden {
        opacity: 1;
        transform: none;
        transition: none;
    }
    .hacker-terminal .term-cursor {
        animation: none;
    }
}