/* Generated by build from config.yaml */

:root, html.dark {
  --color-bg:             #0d0d0d;
  --color-text:           #e8e8e8;
  --color-text-secondary: #b0b0b0;
  --color-muted:          #666666;
  --color-border:         #2a2a2a;
  --color-accent:         #4da6ff;
  --color-accent-hover:   #7abfff;
  --color-bg-code:        #161616;
  --font-sans:            -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  --font-mono:            'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  --font-size-base:       16px;
  --line-height-base:     1.7;
  --h1-size:              1.75rem;
  --h2-size:              1.3rem;
  --h3-size:              1.1rem;
  --h4-size:              1rem;
  --max-width:            1100px;
  --content-width:        680px;
  --sidebar-width:        240px;
  --topbar-height:        48px;
  --sidebar-breakpoint:   860px;
  --mobile-breakpoint:    600px;
}

html.light {
  --color-bg:             #fafafa;
  --color-text:           #1a1a1a;
  --color-text-secondary: #444444;
  --color-muted:          #888888;
  --color-border:         #e0e0e0;
  --color-accent:         #1a7fd4;
  --color-accent-hover:   #1565b0;
  --color-bg-code:        #f0f0f0;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
img, video { max-width: 100%; display: block; }

/* Base */
body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  transition: background-color 0.2s ease, color 0.2s ease;
  min-height: 100vh;
}

/* Topbar */
.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--topbar-height);
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0 1.5rem;
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-bg);
  z-index: 100;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.topbar-brand {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: 0.02em;
  flex-shrink: 0;
}

.topbar-brand:hover { color: var(--color-accent); }

.topbar-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
  list-style: none;
}

.topbar-nav a {
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.15s ease;
}

.topbar-nav a:hover,
.topbar-nav a.active { color: var(--color-accent); }

.topbar-social {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-left: auto;
}

.topbar-social a {
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color 0.15s ease;
}

.topbar-social a:hover { color: var(--color-accent); }

.theme-toggle {
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  cursor: pointer;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.25rem 0.5rem;
  font-family: var(--font-sans);
  transition: color 0.15s ease, border-color 0.15s ease;
  flex-shrink: 0;
}

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

.theme-toggle:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Layout */
.page-body {
  padding-top: var(--topbar-height);
  max-width: var(--max-width);
  margin: 0 auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
  display: grid;
  grid-template-columns: 1fr var(--sidebar-width);
  gap: 3rem;
  align-items: start;
}

.main-content {
  min-width: 0;
  padding-top: 2.5rem;
  padding-bottom: 3rem;
}

/* Right Sidebar */
.sidebar {
  padding-top: 2.5rem;
  position: sticky;
  top: calc(var(--topbar-height) + 1rem);
  max-height: calc(100vh - var(--topbar-height) - 2rem);
  overflow-y: auto;
  scrollbar-width: none;
}

.sidebar::-webkit-scrollbar { display: none; }

.sidebar-list {
  list-style: none;
  font-size: 0.8rem;
}

.sidebar-item {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  padding: 0.2rem 0;
  position: relative;
}

.sidebar-item.active .sidebar-dot {
  color: var(--color-accent);
}

.sidebar-dot {
  font-size: 0.5rem;
  color: transparent;
  flex-shrink: 0;
  line-height: 1.6;
}

.sidebar-num {
  color: var(--color-muted);
  flex-shrink: 0;
  min-width: 1.4rem;
  font-variant-numeric: tabular-nums;
}

.sidebar-num-sub {
  color: var(--color-muted);
  flex-shrink: 0;
  min-width: 2rem;
  font-variant-numeric: tabular-nums;
  padding-left: 0.8rem;
}

.sidebar-link {
  color: var(--color-text-secondary);
  text-decoration: none;
  line-height: 1.4;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 130px;
  display: block;
}

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

.sidebar-date {
  color: var(--color-muted);
  font-size: 0.73rem;
  flex-shrink: 0;
  margin-left: auto;
}

/* Typography */
h1 { font-size: var(--h1-size); font-weight: 700; line-height: 1.2; }
h2 { font-size: var(--h2-size); font-weight: 600; line-height: 1.3; }
h3 { font-size: var(--h3-size); font-weight: 600; line-height: 1.3; }
h4 { font-size: var(--h4-size); font-weight: 600; line-height: 1.4; }

/* Links */
a { color: var(--color-accent); text-decoration: none; }
a:hover { color: var(--color-accent-hover); text-decoration: underline; }
a:focus { outline: 2px solid var(--color-accent); outline-offset: 2px; }

/* Accent on emphasis and underline */
em { color: var(--color-accent); font-style: italic; }
u  { color: var(--color-accent); text-decoration: underline; }

/* Post / page content */
.prose { line-height: var(--line-height-base); }
.prose > * + * { margin-top: 1.25rem; }
.prose h1, .prose h2, .prose h3, .prose h4 { margin-top: 2rem; margin-bottom: 0.5rem; color: var(--color-text); }
.prose h1:first-child { margin-top: 0; }
.prose p { color: var(--color-text-secondary); }
.prose ul, .prose ol { padding-left: 1.5rem; color: var(--color-text-secondary); }
.prose li { margin-bottom: 0.2rem; }
.prose blockquote {
  border-left: 3px solid var(--color-accent);
  padding-left: 1rem;
  color: var(--color-text-secondary);
  font-style: italic;
  margin: 1.5rem 0;
}
.prose hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 2rem 0;
}

/* Code */
code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background-color: var(--color-bg-code);
  padding: 0.1em 0.35em;
  border-radius: 2px;
}

pre, pre.code-block {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  background-color: var(--color-bg-code);
  border-left: 3px solid var(--color-accent);
  padding: 1rem 1.25rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  line-height: 1.55;
  margin: 1.5rem 0;
}

pre code, pre.code-block code {
  background: none;
  padding: 0;
  font-size: inherit;
  border-radius: 0;
}

/* Tables */
.prose table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.prose th, .prose td { border: 1px solid var(--color-border); padding: 0.5rem 0.75rem; text-align: left; }
.prose th { color: var(--color-text); font-weight: 600; }
.prose td { color: var(--color-text-secondary); }

/* Post list (blog index) */
.tag-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.5rem;
}
.tag-filter-item {
  font-size: 0.75rem;
  font-family: inherit;
  padding: 0.2rem 0.55rem;
  border: 1px solid var(--color-border);
  border-radius: 2px;
  color: var(--color-muted);
  text-decoration: none;
  background: none;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}
.tag-filter-item:hover,
.tag-filter-item.active {
  color: var(--color-accent);
  border-color: var(--color-accent);
}
.post-item[hidden] { display: none; }
.post-list { list-style: none; }
.post-item { padding: 1.5rem 0; border-bottom: 1px solid var(--color-border); }
.post-item:last-child { border-bottom: none; }
.post-item-title { font-size: 1.05rem; font-weight: 600; margin-bottom: 0.2rem; }
.post-item-title a { color: var(--color-text); text-decoration: none; }
.post-item-title a:hover { color: var(--color-accent); }
.post-meta { font-size: 0.78rem; color: var(--color-muted); margin-bottom: 0.4rem; }
.post-meta .read-time { margin-left: 0.15rem; }
.post-meta .tag {
  display: inline-block;
  margin-left: 0.4rem;
  padding: 0 0.3rem;
  border: 1px solid var(--color-muted);
  border-radius: 2px;
  font-size: 0.72rem;
}
.post-meta .tag a { color: var(--color-muted); }
.post-meta .tag a:hover { color: var(--color-accent); }
.post-desc { font-size: 0.9rem; color: var(--color-text-secondary); }

/* Post page header */
.post-header { margin-bottom: 2.5rem; }
.post-header h1 { margin-bottom: 0.4rem; }
.post-header .post-meta { margin-top: 0.3rem; }

/* Prev/Next navigation */
.post-nav {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
  font-size: 0.85rem;
}
.post-nav a { color: var(--color-text-secondary); text-decoration: none; }
.post-nav a:hover { color: var(--color-accent); }
.post-nav-label { display: block; font-size: 0.72rem; color: var(--color-muted); letter-spacing: 0.05em; text-transform: uppercase; margin-bottom: 0.2rem; }

/* Page title */
.page-title { font-size: var(--h1-size); font-weight: 700; margin-bottom: 0.3rem; }
.page-subtitle { color: var(--color-text-secondary); font-size: 0.95rem; margin-bottom: 2rem; }

/* About summary block */
.summary-block {
  border-left: 3px solid var(--color-accent);
  padding: 1rem 1.25rem;
  margin-bottom: 2.5rem;
  background-color: var(--color-bg-code);
}
.summary-block p { color: var(--color-text-secondary); margin-top: 0.5rem; }
.summary-block p:first-child { margin-top: 0; }

/* Tag index page */
.tag-title { font-size: var(--h2-size); font-weight: 600; margin-bottom: 1.5rem; }
.tag-title span { color: var(--color-accent); }

/* Footer */
footer {
  border-top: 1px solid var(--color-border);
  padding: 1.5rem;
  text-align: center;
  font-size: 0.78rem;
  color: var(--color-muted);
  max-width: var(--max-width);
  margin: 0 auto;
}
footer a { color: var(--color-muted); }
footer a:hover { color: var(--color-accent); }

/* Print */
@media print {
  .topbar, .sidebar, .theme-toggle, footer { display: none !important; }
  .page-body { display: block; padding-top: 0; padding-left: 0; padding-right: 0; }
  .main-content { padding-top: 0; }
  body { color: #000; background: #fff; }
  a { color: #000; text-decoration: underline; }
  pre, pre.code-block { border: 1px solid #ccc; border-left: none; }
}

/* Responsive: hide sidebar */
@media (max-width: 860px) {
  .page-body {
    grid-template-columns: 1fr;
  }
  .sidebar {
    display: none;
  }
}

/* Responsive: mobile topbar */
@media (max-width: 600px) {
  .topbar {
    flex-wrap: wrap;
    height: auto;
    padding: 0.5rem 1rem;
    gap: 0.5rem;
  }
  .topbar-brand {
    flex: 0 0 100%;
    padding: 0.25rem 0;
  }
  .topbar-nav {
    gap: 0.75rem;
  }
  .topbar-social {
    margin-left: 0;
    gap: 0.5rem;
  }
  .page-body {
    padding-top: calc(var(--topbar-height) * 2 + 0.5rem);
    padding-left: 1rem;
    padding-right: 1rem;
  }
  pre, pre.code-block {
    font-size: 0.78rem;
  }
  h1 { font-size: 1.6rem; }
}

/* Responsive: very small screens */
@media (max-width: 480px) {
  body { font-size: 15px; }
  .topbar-nav a, .topbar-social a { font-size: 0.75rem; }
  h1 { font-size: 1.4rem; }
  .page-body { gap: 1rem; }
}