:root {
  --bg: #0a0e14;
  --bg-elev: #111820;
  --bg-soft: #161d28;
  --line: rgba(232, 212, 150, 0.12);
  --line-strong: rgba(232, 212, 150, 0.28);
  --text: #e8edf4;
  --text-dim: #9aa6b5;
  --text-faint: #6d7886;
  --gold: #e8c35a;
  --gold-2: #c9a227;
  --gold-soft: rgba(232, 195, 90, 0.12);
  --up: #ff5c6c;
  --down: #3dd68c;
  --link: #8cb4ff;
  --shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
  --radius: 14px;
  --header-h: 64px;
  --sidebar-w: 272px;
  --font: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei",
    "IBM Plex Sans", sans-serif;
  --serif: "Noto Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --max: 980px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.bg-grid {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(1200px 500px at 10% -10%, rgba(232, 195, 90, 0.08), transparent 55%),
    radial-gradient(900px 400px at 100% 0%, rgba(61, 214, 140, 0.05), transparent 50%),
    linear-gradient(to bottom, transparent, var(--bg)),
    repeating-linear-gradient(
      90deg,
      transparent 0,
      transparent 71px,
      rgba(255, 255, 255, 0.015) 72px
    );
}

.site-header, .shell, .content-col, .main, .site-footer { position: relative; z-index: 1; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: rgba(10, 14, 20, 0.82);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  width: 100%;
  margin: 0;
  padding: 10px 20px;
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  margin-left: -6px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg-soft);
  color: var(--text);
  cursor: pointer;
  flex-shrink: 0;
}
.menu-toggle:hover { border-color: var(--gold-2); }
.menu-bars {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 16px;
}
.menu-bars span {
  display: block;
  height: 1.5px;
  background: var(--text);
  border-radius: 2px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
  min-width: 0;
}
.brand-mark { display: flex; flex-shrink: 0; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-name {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.08em;
}
.brand-sub {
  font-size: 0.7rem;
  color: var(--text-dim);
  letter-spacing: 0.12em;
}
.nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}
.nav-link {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 6px 10px;
  border-radius: 999px;
  transition: background 0.15s, color 0.15s;
}
.nav-link:hover { color: var(--text); background: var(--gold-soft); }
.nav-link.is-active {
  color: var(--gold);
  background: var(--gold-soft);
}
.nav-latest {
  border: 1px solid var(--line-strong);
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.shell {
  flex: 1;
  display: flex;
  align-items: flex-start;
  width: 100%;
  min-height: 0;
}
.content-col {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}
.main {
  flex: 1;
  width: 100%;
  max-width: calc(var(--max) + 48px);
  margin: 0 auto;
  padding: 24px 20px 64px;
}

.article, .archive { min-width: 0; }

.crumbs {
  font-size: 0.82rem;
  color: var(--text-dim);
  margin-bottom: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}
.crumbs a { color: var(--text-dim); text-decoration: none; }
.crumbs a:hover { color: var(--gold); }
.crumbs .sep { color: var(--text-faint); }
.crumbs .current { color: var(--text); }

.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 22px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.toolbar-meta { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.pill {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  border: 1px solid var(--line-strong);
  color: var(--gold);
  background: var(--gold-soft);
}
.pill-live::before {
  content: "";
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--up);
  margin-right: 6px;
  box-shadow: 0 0 0 3px rgba(255, 92, 108, 0.2);
}
.when { color: var(--text-dim); font-size: 0.82rem; font-variant-numeric: tabular-nums; }

.pager { display: flex; gap: 8px; flex-wrap: wrap; }
.pager-btn {
  font-size: 0.82rem;
  color: var(--text);
  text-decoration: none;
  padding: 6px 10px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--bg-soft);
}
.pager-btn:hover { border-color: var(--gold-2); color: var(--gold); }
.pager-btn.is-disabled { color: var(--text-faint); border-color: transparent; background: transparent; }

.pager-bottom {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 48px;
}
.pager-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 16px;
  border-radius: var(--radius);
  background: var(--bg-elev);
  border: 1px solid var(--line);
  text-decoration: none;
  color: inherit;
  min-height: 76px;
}
.pager-card:hover { border-color: var(--gold-2); }
.pager-card.is-next { text-align: right; }
.pager-card .dir { font-size: 0.75rem; color: var(--text-dim); letter-spacing: 0.08em; }
.pager-card .name { font-weight: 600; }
.pager-card.is-placeholder { visibility: hidden; }

/* Markdown / report typography */
.content {
  font-size: 1.02rem;
  color: var(--text);
}
.content > :first-child { margin-top: 0; }
.content h1, .content h2, .content h3, .content h4 {
  font-family: var(--serif);
  font-weight: 700;
  line-height: 1.35;
  color: #f4f1e8;
}
.content h1 {
  font-size: 1.75rem;
  margin: 0.4em 0 0.7em;
  letter-spacing: 0.02em;
}
.content h2 {
  font-size: 1.28rem;
  margin: 2em 0 0.7em;
  padding-left: 12px;
  border-left: 3px solid var(--gold);
}
.content h3 { font-size: 1.1rem; margin: 1.6em 0 0.5em; }
.content p { margin: 0.85em 0; }
.content a { color: var(--link); text-underline-offset: 3px; }
.content a:hover { color: var(--gold); }
.content hr {
  border: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-strong), transparent);
  margin: 2em 0;
}
.content blockquote {
  margin: 1.4em 0;
  padding: 16px 18px;
  background: linear-gradient(180deg, rgba(232, 195, 90, 0.08), rgba(232, 195, 90, 0.03));
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--gold);
  border-radius: 0 12px 12px 0;
  color: #f0e6c6;
}
.content ul, .content ol { padding-left: 1.3em; }
.content li { margin: 0.3em 0; }
.content img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 18px auto;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #0e131b;
  box-shadow: var(--shadow);
}
.content code {
  font-family: ui-monospace, "IBM Plex Mono", Menlo, Consolas, monospace;
  font-size: 0.88em;
  background: var(--bg-soft);
  padding: 0.1em 0.35em;
  border-radius: 5px;
}
.content pre {
  overflow-x: auto;
  background: var(--bg-soft);
  padding: 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
}
.content pre code { background: none; padding: 0; }

.table-wrap {
  width: 100%;
  overflow-x: auto;
  margin: 1.1em 0;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--bg-elev);
  -webkit-overflow-scrolling: touch;
}
.content table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  min-width: 560px;
}
.content table th,
.content table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  text-align: left;
}
.content table tr:last-child td { border-bottom: 0; }
.content table th {
  background: rgba(232, 195, 90, 0.08);
  font-weight: 600;
  white-space: nowrap;
}
.content table td[align="center"],
.content table th[align="center"] { text-align: center; }
/* README KPI tiles already use nested tables / html */
.content table table { min-width: 0; background: transparent; }
.content table table td { border: 0; padding: 10px 8px; }

.content strong { color: #fff; font-weight: 650; }
.content sub { color: var(--text-dim); }

/* Archive */
.archive-hero { margin-bottom: 28px; }
.kicker {
  margin: 0 0 6px;
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
}
.archive-hero h1 {
  font-family: var(--serif);
  font-size: 2rem;
  margin: 0 0 10px;
}
.lede { color: var(--text-dim); margin: 0 0 10px; max-width: 42em; }
.latest-line { color: var(--text-dim); }
.latest-line a { color: var(--gold); }

.year-block { margin: 28px 0 40px; }
.year-title, .month-title { font-family: var(--serif); }
.year-title { font-size: 1.5rem; margin: 0 0 12px; }
.year-title a, .month-title a { color: inherit; text-decoration: none; }
.year-title a:hover, .month-title a:hover { color: var(--gold); }
.month-block {
  margin: 8px 0 22px;
  padding: 16px 16px 8px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.month-title { margin: 0 0 12px; font-size: 1.15rem; color: var(--gold); }

.day-row {
  display: grid;
  grid-template-columns: 168px 1fr;
  gap: 12px;
  padding: 10px 0;
  border-top: 1px solid var(--line);
  align-items: start;
}
.day-label {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  padding-top: 2px;
}
.day-label .dow { font-size: 0.72rem; color: var(--text-faint); font-variant-numeric: tabular-nums; }
.day-label .dnum { font-weight: 600; }
.day-label .count { font-size: 0.75rem; color: var(--text-dim); }
.day-label:hover .dnum { color: var(--gold); }

.hours { display: flex; flex-wrap: wrap; gap: 6px; }
.hour-chip {
  font-variant-numeric: tabular-nums;
  font-size: 0.82rem;
  text-decoration: none;
  color: var(--text);
  padding: 4px 9px;
  border-radius: 999px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
}
.hour-chip:hover {
  border-color: var(--gold-2);
  color: var(--gold);
  background: var(--gold-soft);
}

.empty { color: var(--text-dim); padding: 48px 0; text-align: center; }

.site-footer {
  border-top: 1px solid var(--line);
  background: rgba(8, 11, 16, 0.85);
}
.footer-inner {
  max-width: calc(var(--max) + 48px);
  margin: 0 auto;
  padding: 22px 20px 32px;
  color: var(--text-dim);
  font-size: 0.82rem;
}
.disclaimer { margin: 0 0 8px; }
.disclaimer strong { color: var(--gold); font-weight: 650; }
.meta { margin: 0; }
.meta a { color: var(--link); }
.dot { margin: 0 0.4em; color: var(--text-faint); }
.commit { font-variant-numeric: tabular-nums; }

/* Mobile */
@media (max-width: 720px) {
  .header-inner { padding: 10px 14px; gap: 10px; }
  .brand-sub { display: none; }
  .nav-link { padding: 6px 8px; font-size: 0.82rem; }
  .main { padding: 16px 14px 48px; }
  .content { font-size: 0.98rem; }
  .content h1 { font-size: 1.38rem; }
  .content h2 { font-size: 1.15rem; }
  .content table { font-size: 0.82rem; min-width: 480px; }
  .day-row { grid-template-columns: 1fr; gap: 8px; }
  .pager-bottom { grid-template-columns: 1fr; }
  .pager-card.is-placeholder { display: none; }
  .pager-card.is-next { text-align: left; }
  .toolbar { align-items: flex-start; }
  .archive-hero h1 { font-size: 1.6rem; }
}

@media (max-width: 420px) {
  .nav-latest { display: none; }
}


/* Sidebar tree */
.sidebar-backdrop[hidden] { display: none !important; }
.sidebar-backdrop {
  display: none;
}
.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  position: sticky;
  top: var(--header-h);
  height: calc(100dvh - var(--header-h));
  overflow: auto;
  overscroll-behavior: contain;
  border-right: 1px solid var(--line);
  background: rgba(11, 16, 22, 0.94);
  backdrop-filter: blur(16px);
  z-index: 15;
}
.sidebar-head {
  position: sticky;
  top: 0;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 14px 14px 10px;
  background: rgba(11, 16, 22, 0.96);
  border-bottom: 1px solid var(--line);
}
.sidebar-title { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.kicker-mini {
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
}
.sidebar-title strong {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 0.92rem;
}
.sidebar-close {
  display: none;
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--text-dim);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
}
.sidebar-close:hover { color: var(--text); background: var(--gold-soft); }

.tree { padding: 8px 8px 24px; }
.tree-empty { color: var(--text-dim); padding: 16px 8px; font-size: 0.85rem; }
.tree-node { margin: 1px 0; }
.tree-node > summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 8px;
  border-radius: 8px;
  user-select: none;
}
.tree-node > summary::-webkit-details-marker,
.tree-node > summary::marker { display: none; content: none; }
.tree-node > summary::before {
  content: "";
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 5px 0 5px 7px;
  border-color: transparent transparent transparent var(--text-faint);
  transform: translateY(0.5px);
  transition: transform 0.15s;
  flex-shrink: 0;
}
.tree-node[open] > summary::before {
  transform: rotate(90deg);
}
.tree-node > summary:hover { background: var(--gold-soft); }
.tree-label {
  color: var(--text);
  text-decoration: none;
  font-size: 0.9rem;
  flex: 1;
  min-width: 0;
}
.tree-label:hover { color: var(--gold); }
.tree-count {
  font-size: 0.7rem;
  color: var(--text-faint);
  font-variant-numeric: tabular-nums;
}
.tree-year > summary .tree-label { font-weight: 650; }
.tree-month { margin-left: 8px; }
.tree-day { margin-left: 8px; }
.tree-hours {
  list-style: none;
  margin: 0 0 6px;
  padding: 0 0 0 28px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.hour-link {
  display: block;
  font-variant-numeric: tabular-nums;
  font-size: 0.84rem;
  color: var(--text-dim);
  text-decoration: none;
  padding: 3px 8px;
  border-radius: 999px;
}
.hour-link:hover { color: var(--gold); background: var(--gold-soft); }
.hour-link.is-current,
.tree-label.is-current {
  color: #1a1406;
  background: var(--gold);
  font-weight: 650;
}
.tree-label.is-current { padding: 1px 8px; border-radius: 999px; flex: 0 1 auto; }

/* Footer sits in the content column */
.site-footer { width: 100%; }

@media (max-width: 960px) {
  .menu-toggle { display: inline-flex; }
  .sidebar-close { display: inline-flex; align-items: center; justify-content: center; }
  .sidebar-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 45;
    background: rgba(0, 0, 0, 0.55);
  }
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100dvh;
    width: min(var(--sidebar-w), 86vw);
    z-index: 50;
    transform: translateX(-105%);
    transition: transform 0.22s ease;
    border-right: 1px solid var(--line-strong);
    box-shadow: var(--shadow);
  }
  body.sidebar-open .sidebar { transform: translateX(0); }
  body.sidebar-open { overflow: hidden; }
  .header-inner { padding: 10px 14px; }
}