/* ============================================
   Vear Blog 站点样式
   深/浅主题由 <html data-theme="dark|light"> 控制
   ============================================ */

/* ---------- 主题变量 ---------- */
:root {
  --bg: #f6f7f9;
  --bg-soft: #eef0f3;
  --card: #ffffff;
  --text: #1f2328;
  --muted: #6b7280;
  --border: #e4e7ec;
  --accent: #f6821f;
  --accent-soft: #fde8d4;
  --code-bg: #f3f4f6;
  --shadow: 0 1px 3px rgba(16, 24, 40, 0.08);
}
html[data-theme="dark"] {
  --bg: #111418;
  --bg-soft: #161b22;
  --card: #1b2027;
  --text: #e6e8eb;
  --muted: #9aa3af;
  --border: #2a3038;
  --accent: #ff9d45;
  --accent-soft: #3a2a18;
  --code-bg: #232a33;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}

/* ---------- 基础 ---------- */
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  transition: background 0.25s ease, color 0.25s ease;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

/* ---------- 头部导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: var(--bg-soft);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; gap: 16px; height: 60px; flex-wrap: wrap; }
.logo { font-size: 20px; font-weight: 700; color: var(--text); white-space: nowrap; }
.logo span { color: var(--accent); }
.nav { display: flex; gap: 2px; flex: 1; flex-wrap: wrap; }
.nav a {
  padding: 6px 10px; border-radius: 8px; color: var(--muted); font-size: 14px;
}
.nav a:hover { color: var(--text); background: var(--border); text-decoration: none; }
.nav a.active { color: var(--accent); font-weight: 600; background: var(--accent-soft); }
.theme-toggle {
  border: 1px solid var(--border); background: var(--card); color: var(--text);
  width: 36px; height: 36px; border-radius: 50%; cursor: pointer; font-size: 16px;
}
.theme-toggle:hover { border-color: var(--accent); }

/* ---------- 首页布局 ---------- */
.home-grid { display: grid; grid-template-columns: 1fr 300px; gap: 24px; padding: 32px 0; }
@media (max-width: 860px) { .home-grid { grid-template-columns: 1fr; } }
.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; padding: 20px; box-shadow: var(--shadow);
}
.intro h1 { margin: 0 0 8px; font-size: 28px; }
.intro p { margin: 0; color: var(--muted); }
.section-title { font-size: 20px; margin: 24px 0 14px; }

/* ---------- 文章卡片 ---------- */
.post-list { display: grid; gap: 14px; }
.post-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; padding: 18px 20px; box-shadow: var(--shadow);
}
.post-card h3 { margin: 0 0 6px; font-size: 18px; }
.post-card h3 a { color: var(--text); }
.post-card h3 a:hover { color: var(--accent); }
.post-meta { margin: 0 0 8px; color: var(--muted); font-size: 13px; }
.post-summary { margin: 0; color: var(--muted); font-size: 14px; }
.tag {
  display: inline-block; padding: 2px 10px; margin: 2px 4px 2px 0;
  border-radius: 999px; background: var(--accent-soft); color: var(--accent);
  font-size: 13px; white-space: nowrap;
}
.tag:hover { text-decoration: none; filter: brightness(1.05); }

/* ---------- 骨架屏 ---------- */
.skeleton {
  background: linear-gradient(90deg, var(--bg-soft) 25%, var(--border) 50%, var(--bg-soft) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
  border-radius: 6px;
}
@keyframes shimmer { to { background-position: -200% 0; } }
.skeleton-line { height: 14px; margin-bottom: 10px; }
.skeleton-line.w90 { width: 90%; }
.skeleton-line.w60 { width: 60%; }
.skeleton-line.w30 { width: 30%; }
.skeleton-card { min-height: 96px; }

/* ---------- 侧边栏 ---------- */
.sidebar { display: grid; gap: 16px; align-content: start; }
.sidebar h3 { margin: 0 0 10px; font-size: 15px; }
.sidebar ul { margin: 0; padding: 0; list-style: none; }
.sidebar li { padding: 4px 0; font-size: 14px; }
.sidebar p { margin: 0 0 10px; color: var(--muted); font-size: 14px; }

/* ---------- 文章页 ---------- */
.post { max-width: 760px; margin: 32px auto; }
.post h1 { font-size: 28px; margin: 0 0 8px; }
.post-content { margin-top: 16px; font-size: 16px; }
.post-content h2 { font-size: 22px; margin: 28px 0 12px; padding-bottom: 8px; border-bottom: 1px solid var(--border); }
.post-content h3 { font-size: 18px; margin: 22px 0 10px; }
.post-content p { margin: 0 0 14px; }
.post-content ul, .post-content ol { margin: 0 0 14px; padding-left: 24px; }
.post-content li { margin: 4px 0; }
.post-content blockquote {
  margin: 14px 0; padding: 10px 16px; border-left: 4px solid var(--accent);
  background: var(--accent-soft); border-radius: 0 8px 8px 0; color: var(--muted);
}
.post-content code {
  background: var(--code-bg); border: 1px solid var(--border);
  padding: 2px 6px; border-radius: 5px; font-size: 0.9em;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}
.post-content pre {
  background: var(--code-bg); border: 1px solid var(--border);
  padding: 14px 16px; border-radius: 10px; overflow-x: auto; margin: 0 0 14px;
}
.post-content pre code { background: none; border: none; padding: 0; }
.post-footer {
  margin-top: 28px; padding-top: 16px; border-top: 1px solid var(--border);
  display: flex; gap: 18px; font-size: 14px;
}

/* ---------- 通用页面 / 归档 / 标签 ---------- */
.page { max-width: 760px; margin: 32px auto; }
.page h1 { font-size: 26px; margin: 0 0 16px; }
.page h2 { font-size: 20px; margin: 24px 0 10px; }
.page ul { padding-left: 22px; }
.archive-month { margin: 22px 0; }
.archive-month h2 { font-size: 18px; color: var(--muted); margin: 0 0 10px; }
.archive-list { list-style: none; padding: 0; margin: 0; }
.archive-list li {
  display: flex; justify-content: space-between; gap: 16px;
  padding: 8px 0; border-bottom: 1px dashed var(--border);
}
.archive-list time { color: var(--muted); font-size: 13px; flex-shrink: 0; }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.tag-cloud .tag { padding: 4px 14px; }
.tag-cloud .tag small { opacity: 0.7; margin-left: 4px; }

/* ---------- 搜索页 ---------- */
.search-box {
  width: 100%; padding: 12px 16px; font-size: 16px;
  border: 1px solid var(--border); border-radius: 10px;
  background: var(--card); color: var(--text); outline: none;
}
.search-box:focus { border-color: var(--accent); }
.search-results { margin-top: 18px; display: grid; gap: 12px; }
.search-empty { color: var(--muted); }

/* ---------- 用量页 ---------- */
.usage-note { color: var(--muted); font-size: 14px; }
.usage-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; margin-top: 20px; }
.usage-card h3 { margin: 0 0 12px; font-size: 16px; }
.usage-card ul { margin: 0; padding: 0; list-style: none; }
.usage-card li { display: flex; justify-content: space-between; padding: 6px 0; border-bottom: 1px dashed var(--border); font-size: 14px; }
.usage-card li span { color: var(--muted); }
.usage-card.skeleton-card { min-height: 160px; }

/* ---------- 页脚 ---------- */
.site-footer { margin-top: 40px; padding: 24px 0; border-top: 1px solid var(--border); color: var(--muted); font-size: 13px; text-align: center; }
.site-footer p { margin: 4px 0; }
.footer-links a { color: var(--muted); margin: 0 6px; }
