/* ============================================================
   Hexo Theme: terminal
   终端/科技风格 · 浅色 / 暗色双模式
   ============================================================ */

:root {
  --bg: #f2f2ec;
  --panel: #fbfbf8;
  --fg: #1d241d;
  --muted: #67706a;
  --accent: #0a7d2c;
  --accent-soft: rgba(10, 125, 44, 0.12);
  --border: #d6d6cb;
  --code-bg: #e9e9e1;
  --code-block-bg: #20261f;
  --code-block-fg: #d4e2d4;
  --link: #0a6ec7;
  --shadow: rgba(0, 0, 0, 0.06);
  --scanline: transparent;
  color-scheme: light;
}

[data-theme="dark"] {
  --bg: #0b0f0b;
  --panel: #10160f;
  --fg: #c2d4c2;
  --muted: #5f705f;
  --accent: #33ff77;
  --accent-soft: rgba(51, 255, 119, 0.1);
  --border: #1f2c1f;
  --code-bg: #17211a;
  --code-block-bg: #0e130e;
  --code-block-fg: #b8d4b8;
  --link: #4da3ff;
  --shadow: rgba(0, 0, 0, 0.4);
  --scanline: rgba(0, 0, 0, 0.12);
  color-scheme: dark;
}

/* ---------- 基础 ---------- */

* { box-sizing: border-box; }

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--fg);
  font-family: "SF Mono", "Cascadia Code", "JetBrains Mono", Menlo, Consolas,
    "Liberation Mono", ui-monospace, "Sarasa Mono SC", "Maple Mono NF CN",
    "Noto Sans Mono CJK SC", "Microsoft YaHei", monospace;
  font-size: 0.95rem;
  line-height: 1.75;
  transition: background 0.25s ease, color 0.25s ease;
}

/* 暗色模式下的轻微扫描线质感 */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  background: repeating-linear-gradient(
    to bottom,
    var(--scanline) 0,
    var(--scanline) 1px,
    transparent 1px,
    transparent 3px
  );
}

a {
  color: var(--link);
  text-decoration: none;
}

a:hover {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

::selection {
  background: var(--accent);
  color: var(--bg);
}

/* ---------- 整体外壳 ---------- */

.term-shell {
  max-width: 860px;
  margin: 2rem auto;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 8px 30px var(--shadow);
  overflow: hidden;
}

/* ---------- 头部 ---------- */

.term-titlebar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 1rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  font-size: 0.8rem;
  color: var(--muted);
  user-select: none;
}

.term-dots { display: inline-flex; gap: 0.4rem; }

.term-dot {
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  display: inline-block;
}

.term-dot--close { background: #ff5f56; }
.term-dot--min { background: #ffbd2e; }
.term-dot--max { background: #27c93f; }

.term-titlebar-text { flex: 1; text-align: center; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.theme-toggle {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.78rem;
  padding: 0.1rem 0.5rem;
  border-radius: 4px;
  cursor: pointer;
}

.theme-toggle:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.term-hero { padding: 1.75rem 2rem 0.75rem; }

.term-brand {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--fg);
}

.term-brand:hover { text-decoration: none; }

.term-prompt {
  color: var(--accent);
  font-weight: 700;
  user-select: none;
}

.term-cursor {
  display: inline-block;
  width: 0.6em;
  height: 1.1em;
  margin-left: 0.15em;
  vertical-align: text-bottom;
  background: var(--accent);
  animation: blink 1.1s step-end infinite;
}

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

.term-subtitle {
  margin: 0.35rem 0 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.term-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.25rem;
  padding: 0.75rem 2rem 1.25rem;
}

.term-nav-link {
  color: var(--muted);
  font-size: 0.9rem;
}

.term-nav-link:hover,
.term-nav-link.is-active {
  color: var(--accent);
  text-decoration: none;
}

.term-nav-link.is-active::before { content: "* "; }

/* ---------- 主区域与面板 ---------- */

.term-main { padding: 0 2rem 2rem; }

.term-panel {
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--panel);
  padding: 1.25rem 1.5rem;
}

.term-panel + .term-panel { margin-top: 1.5rem; }

.term-panel-head {
  margin: -1.25rem -1.5rem 1.25rem;
  padding: 0.45rem 1.5rem;
  border-bottom: 1px dashed var(--border);
  color: var(--accent);
  font-size: 0.8rem;
  user-select: none;
}

.term-muted { color: var(--muted); }

/* ---------- 文章列表 ---------- */

.post-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.post-list-item {
  display: flex;
  align-items: baseline;
  column-gap: 0.75rem;
  padding: 0.9rem 0;
  border-bottom: 1px dashed var(--border);
}

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

/* 只加大分割线周围的间距，列表首尾保持原间距 */
.post-list-item:first-child { padding-top: 0.6rem; }
.post-list-item:last-child { padding-bottom: 0.6rem; }

.post-entry {
  flex: 1 1 0;
  min-width: 0;
}

.post-date {
  display: block;
  margin-top: 0.1rem;
  color: var(--muted);
  font-size: 0.82rem;
}

.post-link {
  color: var(--fg);
  font-weight: 600;
}

.post-link:hover { color: var(--accent); }

.post-excerpt {
  margin: 0.25rem 0 0;
  color: var(--muted);
  font-size: 0.85rem;
}

/* ---------- 归档 ---------- */

.archive-year {
  margin: 1.25rem 0 0.5rem;
  font-size: 1.05rem;
  color: var(--accent);
}

.archive-item {
  display: flex;
  align-items: baseline;
  column-gap: 0.75rem;
  padding: 0.2rem 0 0.2rem 1.25rem;
}

.archive-item .post-date {
  flex: 0 0 auto;
  margin-top: 0;
  white-space: nowrap;
}

.archive-item .post-link {
  flex: 1 1 0;
  min-width: 0;
}

/* ---------- 分类 / 标签云 ---------- */

.cloud-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.cloud-list a {
  display: inline-block;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.15rem 0.6rem;
  font-size: 0.85rem;
  color: var(--fg);
}

.cloud-list a:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
  text-decoration: none;
}

.cloud-list .category-count,
.cloud-list .tag-none-count { color: var(--muted); font-size: 0.78rem; }

.cloud-list .category-count::before { content: " ("; }
.cloud-list .category-count::after { content: ")"; }
.cloud-list .tag-none-count::before { content: " ("; }
.cloud-list .tag-none-count::after { content: ")"; }

/* ---------- 文章页 ---------- */

.article-header { margin-bottom: 1.25rem; }

.article-title {
  margin: 0 0 0.35rem;
  font-size: 1.45rem;
  line-height: 1.4;
}

.article-title::before {
  content: "# ";
  color: var(--accent);
}

.article-meta { font-size: 0.82rem; }

.article-meta a { color: var(--muted); }
.article-meta a:hover { color: var(--accent); }

.article-stats {
  white-space: nowrap;
}

.article-toc {
  border: 1px dashed var(--border);
  border-radius: 6px;
  padding: 0.75rem 1rem;
  margin-bottom: 1.5rem;
  font-size: 0.85rem;
  background: var(--accent-soft);
}

.article-toc-title {
  color: var(--accent);
  margin-bottom: 0.35rem;
  user-select: none;
}

.article-toc ol { margin: 0; padding-left: 1.4rem; }
.article-toc a { color: var(--fg); }
.article-toc a:hover { color: var(--accent); }

/* ---------- 正文排版 ---------- */

.article-content h1,
.article-content h2,
.article-content h3,
.article-content h4,
.article-content h5,
.article-content h6 {
  margin: 1.75rem 0 0.75rem;
  line-height: 1.4;
}

.article-content h1 { font-size: 1.5rem; }
.article-content h2 { font-size: 1.3rem; }
.article-content h3 { font-size: 1.15rem; }
.article-content h4 { font-size: 1.05rem; }
.article-content h5 { font-size: 0.98rem; }
.article-content h6 { font-size: 0.92rem; }

.article-content h2::before { content: "## "; color: var(--accent); }
.article-content h3::before { content: "### "; color: var(--accent); }
.article-content h4::before { content: "#### "; color: var(--accent); }

.article-content p { margin: 0.9rem 0; }

.article-content img {
  max-width: 100%;
  height: auto;
  border: 1px solid var(--border);
  border-radius: 4px;
  cursor: zoom-in;
}

.article-content blockquote {
  margin: 1rem 0;
  padding: 0.5rem 1rem;
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  color: var(--muted);
}

.article-content blockquote p { margin: 0.3rem 0; }

.about-icon-defs {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.about-icon {
  width: 1em;
  height: 1em;
  margin-right: 0.4em;
  vertical-align: -0.15em;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  color: var(--accent);
}

.contact-email-reveal {
  appearance: none;
  border: 0;
  padding: 0;
  background: transparent;
  color: var(--link);
  font: inherit;
  cursor: pointer;
}

.contact-email-reveal:hover {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.contact-email-reveal:focus-visible {
  outline: 1px dashed var(--accent);
  outline-offset: 3px;
}

.article-content hr {
  border: none;
  border-top: 1px dashed var(--border);
  margin: 2rem 0;
}

.article-content ul,
.article-content ol { padding-left: 1.6rem; }

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.88rem;
}

.article-content th,
.article-content td {
  border: 1px solid var(--border);
  padding: 0.4rem 0.7rem;
  text-align: left;
}

.article-content th {
  background: var(--accent-soft);
  color: var(--accent);
}

/* ---------- 代码 ---------- */

code,
kbd,
pre,
samp { font-family: inherit; }

:not(pre) > code {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.1em 0.35em;
  font-size: 0.88em;
  color: var(--accent);
}

/* Hexo 内置 highlight 生成的 figure 结构 */
figure.highlight {
  margin: 1.25rem 0;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: auto;
  background: var(--code-block-bg);
  color: var(--code-block-fg);
  font-size: 0.85rem;
  line-height: 1.6;
}

figure.highlight figcaption {
  padding: 0.3rem 0.9rem;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.78rem;
  background: var(--code-block-bg);
}

figure.highlight figcaption a { float: right; color: var(--muted); }

figure.highlight table {
  margin: 0;
  width: 100%;
  border-collapse: collapse;
}

figure.highlight td { border: none; padding: 0; }

figure.highlight .gutter {
  width: 1%;
  min-width: 3rem;
  padding: 0.6rem 0.6rem;
  text-align: right;
  color: var(--muted);
  border-right: 1px solid var(--border);
  user-select: none;
  background: var(--code-block-bg);
}

figure.highlight .code { padding: 0.6rem 0.9rem; }

figure.highlight pre {
  margin: 0;
  background: transparent;
  color: inherit;
}

figure.highlight .line { min-height: 1.2em; }

figure.highlight .marked {
  background: var(--accent-soft);
  display: inline-block;
  width: 100%;
}

/* highlight.js 常用 token 配色（亮暗通用，基于代码块固定深色底） */
.highlight .comment,
.highlight .quote { color: #6a7f6a; font-style: italic; }
.highlight .keyword,
.highlight .selector-tag,
.highlight .type { color: #ff7b72; }
.highlight .string,
.highlight .regexp,
.highlight .addition { color: #a5d6a7; }
.highlight .number,
.highlight .literal { color: #ffab70; }
.highlight .title,
.highlight .name,
.highlight .section { color: #79c0ff; }
.highlight .built_in,
.highlight .attr,
.highlight .attribute,
.highlight .variable,
.highlight .template-variable { color: #d2a8ff; }
.highlight .symbol,
.highlight .bullet,
.highlight .link { color: #56d4dd; }
.highlight .deletion { color: #ffa198; }
.highlight .emphasis { font-style: italic; }
.highlight .strong { font-weight: 700; }

/* 非 highlight 包裹的 pre（兜底） */
.article-content > pre {
  background: var(--code-block-bg);
  color: var(--code-block-fg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.75rem 1rem;
  overflow: auto;
  font-size: 0.85rem;
}

/* ---------- 文章导航 / 分页 ---------- */

.post-nav {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1.5rem;
  font-size: 0.88rem;
}

.post-nav-link {
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.3rem 0.8rem;
  color: var(--fg);
  max-width: 48%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.post-nav-link:hover {
  border-color: var(--accent);
  color: var(--accent);
  text-decoration: none;
}

.term-paginator {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  justify-content: center;
  font-size: 0.85rem;
}

.term-paginator .page-number,
.term-paginator .extend,
.term-paginator .space {
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.15rem 0.65rem;
  color: var(--fg);
}

.term-paginator .space { border: none; color: var(--muted); }

.term-paginator .current {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg);
}

.term-paginator a.page-number:hover,
.term-paginator a.extend:hover {
  border-color: var(--accent);
  color: var(--accent);
  text-decoration: none;
}

/* ---------- 页脚 ---------- */

.term-footer {
  border-top: 1px solid var(--border);
  padding: 1rem 2rem 1.5rem;
  background: var(--bg);
  font-size: 0.8rem;
  color: var(--muted);
}

.term-footer-line { margin-bottom: 0.4rem; }

.term-footer-meta { margin: 0; }

.term-footer-meta a { color: var(--muted); }
.term-footer-meta a:hover { color: var(--accent); }

/* ---------- 图片预览（lightbox） ---------- */

.img-lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  background: rgba(0, 0, 0, 0.6);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
  cursor: zoom-out;
}

.img-lightbox.is-open {
  opacity: 1;
  visibility: visible;
}

.img-lightbox img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border: 1px solid var(--border);
  border-radius: 4px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
  transform-origin: center center;
  cursor: grab;
  user-select: none;
  -webkit-user-drag: none;
  touch-action: none;
}

.img-lightbox img.is-dragging { cursor: grabbing; }

/* 打开/关闭时的位移动画（JS 加 .is-animating，避免拖动时卡顿） */
.img-lightbox img.is-animating { transition: transform 0.25s ease; }

.img-lightbox-counter {
  position: absolute;
  top: 1rem;
  left: 1rem;
  z-index: 2;
  display: none;
  padding: 0.4rem 0.7rem;
  border-radius: 1.2rem;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  color: #fff;
  font-size: 0.85rem;
}

.img-lightbox.has-multiple .img-lightbox-counter { display: block; }

.img-lightbox-toolbar {
  position: absolute;
  top: 1rem;
  right: 1rem;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.img-lightbox-toolbar button,
.img-lightbox-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.4);
  color: #fff;
  cursor: pointer;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  transition: background 0.15s ease;
}

.img-lightbox-toolbar button:hover,
.img-lightbox-nav:hover { background: rgba(0, 0, 0, 0.7); }

.img-lightbox-toolbar button svg,
.img-lightbox-nav svg {
  width: 1.1rem;
  height: 1.1rem;
}

.img-lightbox-nav {
  position: absolute;
  top: 50%;
  z-index: 2;
  width: 2.5rem;
  height: 2.5rem;
  transform: translateY(-50%);
  display: none;
}

.img-lightbox.has-multiple .img-lightbox-nav { display: flex; }

.img-lightbox-prev { left: 1rem; }
.img-lightbox-next { right: 1rem; }

.img-lightbox-scale {
  min-width: 3.2rem;
  padding: 0.4rem 0.5rem;
  border-radius: 1.2rem;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  color: #fff;
  font-size: 0.85rem;
  text-align: center;
}

/* ---------- 响应式 ---------- */

@media (max-width: 900px) {
  .term-shell {
    margin: 0;
    border: none;
    border-radius: 0;
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
  }
  /* 内容不足一屏时把页脚推到底部，避免下方留白露出外壳背景 */
  .term-main { flex: 1 0 auto; }
}

@media (max-width: 600px) {
  body { font-size: 0.9rem; }
  .term-hero { padding: 1.25rem 1.25rem 0.5rem; }
  .term-nav { padding: 0.5rem 1.25rem 1rem; }
  .term-main { padding: 0 1.25rem 1.5rem; }
  .term-panel { padding: 1rem; }
  .term-panel-head { margin: -1rem -1rem 1rem; padding: 0.4rem 1rem; }
}

/* ---------- 打印 ---------- */

@media print {
  body::after,
  .term-titlebar,
  .term-nav,
  .post-nav,
  .term-paginator { display: none; }
  .term-shell { border: none; box-shadow: none; margin: 0; }
}