:root {
  --bg: #0b0d10;
  --bg-soft: #0f1217;
  --surface: #12151b;
  --surface-2: #171b23;
  --text: #e8e6e1;
  --muted: #98a1ac;
  --faint: #6f7883;
  --border: #252b35;
  --border-soft: #1c212a;
  --accent: #ffb253;
  --accent-soft: #3a2a17;
  --accent-ink: #1e1408;
  --danger: #ff7a7a;
  --code: #0b0e13;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  --radius: 14px;
  --max: 1080px;
  --mono: "JetBrains Mono", "DejaVu Sans Mono", "SFMono-Regular", Consolas, monospace;
  --sans: "Inter", "Noto Sans", "Segoe UI", system-ui, -apple-system, sans-serif;
}

[data-theme="light"] {
  --bg: #f5f1e8;
  --bg-soft: #efe9dc;
  --surface: #fbf8f1;
  --surface-2: #f3eee4;
  --text: #1d1c1a;
  --muted: #5f5a51;
  --faint: #8b8478;
  --border: #d9d1c2;
  --border-soft: #e6dfd3;
  --accent: #b8650a;
  --accent-soft: #f3dfc4;
  --accent-ink: #fff8ec;
  --danger: #b3261e;
  --code: #1b1a18;
  --shadow: 0 24px 60px rgba(74, 58, 34, 0.12);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(900px 520px at 12% -8%, rgba(255, 178, 83, 0.09), transparent 60%),
    radial-gradient(760px 420px at 90% 0%, rgba(120, 160, 255, 0.05), transparent 60%),
    var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

[data-theme="light"] body {
  background:
    radial-gradient(900px 520px at 12% -8%, rgba(184, 101, 10, 0.1), transparent 60%),
    radial-gradient(760px 420px at 90% 0%, rgba(120, 160, 255, 0.08), transparent 60%),
    var(--bg);
}

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

a {
  color: inherit;
  text-decoration: none;
}

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

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

img {
  max-width: 100%;
  height: auto;
}

hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 2.5rem 0;
}

.shell {
  width: min(var(--max), calc(100% - 3rem));
  margin-inline: auto;
}

.mono {
  font-family: var(--mono);
}

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

.accent {
  color: var(--accent);
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 50;
  padding: 0.55rem 0.9rem;
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-ink);
  font: 600 0.8rem var(--mono);
}

.skip-link:focus {
  top: 1rem;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  border-bottom: 1px solid var(--border-soft);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: blur(14px) saturate(1.2);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  height: 64px;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0.15rem;
  font-family: var(--mono);
  font-size: 0.95rem;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.brand-mark {
  color: var(--accent);
  margin-right: 0.15rem;
}

.brand-name {
  font-weight: 700;
}

.brand-sub {
  color: var(--faint);
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.35rem;
  margin-left: auto;
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  text-transform: lowercase;
}

.nav a {
  color: var(--muted);
}

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

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 58px;
  height: 30px;
  padding: 0 0.55rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  font: 0.68rem var(--mono);
  letter-spacing: 0.06em;
  cursor: pointer;
}

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

[data-theme="dark"] .theme-light,
[data-theme="light"] .theme-dark {
  display: none;
}

/* Hero */

.hero {
  padding: 5.2rem 0 3.2rem;
  border-bottom: 1px solid var(--border-soft);
}

.kicker {
  margin: 0 0 1rem;
  color: var(--accent);
  font: 0.72rem var(--mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.kicker a {
  color: var(--muted);
}

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

.hero h1 {
  margin: 0;
  max-width: 16ch;
  font-size: clamp(2.7rem, 8vw, 5.4rem);
  font-weight: 650;
  letter-spacing: -0.055em;
  line-height: 0.98;
}

.lede {
  margin: 1.4rem 0 0;
  max-width: 62ch;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.7;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin-top: 1.7rem;
  color: var(--faint);
  font: 0.72rem var(--mono);
}

.hero-meta strong {
  color: var(--text);
  font-weight: 600;
}

.sep {
  color: var(--faint);
}

/* Home layout */

.home-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 270px;
  gap: 4.5rem;
  padding: 3rem 0 5rem;
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--border);
}

.section-head h2 {
  margin: 0;
  font-size: 0.8rem;
  font-weight: 600;
  font-family: var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.count {
  color: var(--faint);
  font: 0.72rem var(--mono);
}

.search {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 1rem 0 0.3rem;
  padding: 0.55rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--muted);
}

.search:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 16%, transparent);
}

.search-icon {
  color: var(--accent);
  font-family: var(--mono);
  font-weight: 700;
}

.search input {
  flex: 1;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text);
  font: 0.85rem var(--mono);
}

.search input::placeholder {
  color: var(--faint);
}

.search kbd {
  padding: 0.1rem 0.35rem;
  border: 1px solid var(--border);
  border-radius: 5px;
  color: var(--faint);
  font: 0.68rem var(--mono);
}

/* Post cards */

#post-list {
  display: flex;
  flex-direction: column;
}

.post-card {
  position: relative;
  padding: 1.65rem 0 1.5rem;
  border-bottom: 1px solid var(--border-soft);
}

.post-card::before {
  content: "";
  position: absolute;
  left: -1.1rem;
  top: 1.9rem;
  bottom: 1.9rem;
  width: 2px;
  border-radius: 2px;
  background: transparent;
}

.post-card:hover::before {
  background: var(--accent);
}

.post-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  color: var(--faint);
  font: 0.7rem var(--mono);
}

.project-link {
  margin-left: 0.2rem;
  padding: 0.12rem 0.45rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.66rem;
}

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

.post-card h3 {
  margin: 0.55rem 0 0;
  max-width: 42ch;
  font-size: clamp(1.25rem, 3vw, 1.6rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.2;
}

.post-card h3 a:hover {
  color: var(--accent);
}

.post-card p {
  margin: 0.55rem 0 0;
  max-width: 66ch;
  color: var(--muted);
  font-size: 0.94rem;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.85rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.18rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--faint);
  font: 0.68rem var(--mono);
}

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

/* Sidebar */

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 2.2rem;
  padding-top: 0.2rem;
}

.side-bar {
  position: sticky;
  top: 84px;
}

.side-block h2 {
  margin: 0 0 0.8rem;
  color: var(--faint);
  font: 0.7rem var(--mono);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

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

.side-list li {
  border-bottom: 1px dashed var(--border-soft);
}

.side-list a {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.45rem 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.side-list a:hover {
  color: var(--accent);
}

.side-count {
  color: var(--faint);
  font: 0.68rem var(--mono);
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.side-note p {
  margin: 0 0 0.7rem;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.6;
}

.side-note .mono {
  font-size: 0.68rem;
}

/* Page headers, terms, pagination */

.page-head {
  padding: 4.5rem 0 2.4rem;
  border-bottom: 1px solid var(--border-soft);
}

.page-head h1 {
  margin: 0;
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  font-weight: 650;
  letter-spacing: -0.045em;
  line-height: 1.05;
}

.term-cloud {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 0.6rem;
  padding: 3rem 0 5rem;
}

.term {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--muted);
  font: 0.82rem var(--mono);
}

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

.term-hash {
  color: var(--accent);
}

.term-count {
  color: var(--faint);
}

.pager {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 2rem 0 0;
  font: 0.78rem var(--mono);
}

.pager a {
  color: var(--accent);
}

.pager-disabled {
  color: var(--faint);
}

.pager-count {
  color: var(--faint);
}

/* Article */

.post {
  max-width: 760px;
  margin: 0 auto;
  padding: 4.5rem 0 3rem;
}

.post-header {
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border);
}

.post-header h1 {
  margin: 0;
  font-size: clamp(2.1rem, 5vw, 3.5rem);
  font-weight: 650;
  letter-spacing: -0.045em;
  line-height: 1.06;
}

.post-header .lede {
  margin-top: 1rem;
}

.post-meta {
  margin-top: 1.2rem;
}

.post-header .tag-row {
  margin-top: 1rem;
}

.content {
  padding-top: 2.2rem;
  font-size: 1.02rem;
  line-height: 1.8;
  overflow-wrap: break-word;
}

.content > p:first-child {
  font-size: 1.1rem;
  color: var(--text);
}

.content h2,
.content h3,
.content h4 {
  margin: 2.4rem 0 0.8rem;
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.25;
}

.content h2 {
  font-size: 1.5rem;
}

.content h3 {
  font-size: 1.2rem;
}

.content p {
  margin: 0 0 1.15rem;
}

.content a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--accent) 40%, transparent);
  text-underline-offset: 3px;
}

.content a:hover {
  text-decoration-color: var(--accent);
}

.content ul,
.content ol {
  margin: 0 0 1.2rem;
  padding-left: 1.35rem;
}

.content li {
  margin: 0.3rem 0;
}

.content li::marker {
  color: var(--accent);
}

.content blockquote {
  margin: 1.6rem 0;
  padding: 0.2rem 0 0.2rem 1.2rem;
  border-left: 3px solid var(--accent);
  color: var(--muted);
  font-style: italic;
}

.content code {
  padding: 0.14rem 0.35rem;
  border: 1px solid var(--border-soft);
  border-radius: 5px;
  background: var(--surface);
  color: var(--accent);
  font: 0.86em var(--mono);
}

.content pre {
  margin: 1.4rem 0;
  padding: 1rem 1.15rem;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--code);
  color: #e8e6e1;
  font: 0.82rem/1.65 var(--mono);
}

.content pre code {
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
}

.content table {
  width: 100%;
  margin: 1.5rem 0;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.content th,
.content td {
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--border);
  text-align: left;
}

.content th {
  background: var(--surface);
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 600;
}

.content img {
  border: 1px solid var(--border);
  border-radius: 10px;
}

.content figure.post-image {
  margin: 1.8rem 0;
}

.content figure.post-image img {
  display: block;
  width: 100%;
  height: auto;
  background: var(--surface);
}

.content figure.post-image figcaption {
  margin-top: 0.55rem;
  color: var(--faint);
  font: 0.72rem/1.5 var(--mono);
  text-align: center;
}

.content hr {
  margin: 2.5rem 0;
}

.post-footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  color: var(--faint);
  font-size: 0.8rem;
}

.post-footer p {
  margin: 0 0 1rem;
}

.post-footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--mono);
  font-size: 0.76rem;
}

.post-footer-links a {
  color: var(--accent);
}

/* Share */

.post-share {
  margin-top: 3rem;
  padding: 1.1rem 1.2rem 1.2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  text-align: center;
}

.share-label {
  margin: 0 0 0.7rem;
  color: var(--faint);
  font: 0.68rem var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.share-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.45rem;
}

.share-link {
  display: inline-flex;
  align-items: center;
  padding: 0.38rem 0.62rem;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--bg-soft);
  color: var(--muted);
  font: 0.72rem var(--mono);
  line-height: 1.2;
  cursor: pointer;
  transition: border-color 140ms ease, color 140ms ease, background 140ms ease;
}

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

.share-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.share-link[data-copied="true"] {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--border-soft);
  padding: 2.2rem 0;
}

.footer-inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 2rem;
}

.footer-brand {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.9rem;
  font-weight: 700;
}

.footer-brand span {
  color: var(--faint);
  font-weight: 400;
}

.footer-note {
  margin: 0.35rem 0 0;
  max-width: 48ch;
  color: var(--faint);
  font-size: 0.76rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font: 0.72rem var(--mono);
  color: var(--muted);
}

.footer-links a:hover {
  color: var(--accent);
}

/* Utility */

.empty {
  padding: 2rem 0;
  color: var(--faint);
  font: 0.82rem var(--mono);
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
  padding: 0.55rem 0.9rem;
  border: 1px solid var(--accent);
  border-radius: 8px;
  color: var(--accent);
  font: 0.78rem var(--mono);
}

.button:hover {
  background: var(--accent);
  color: var(--accent-ink);
}

[hidden] {
  display: none !important;
}

/* Responsive */

@media (max-width: 900px) {
  .home-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .sidebar {
    padding-top: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
  }

  .side-note {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  .shell {
    width: calc(100% - 2rem);
  }

  .header-inner {
    height: 56px;
    gap: 0.8rem;
  }

  .nav {
    gap: 0.8rem;
  }

  .nav a:nth-child(3),
  .nav a:nth-child(4) {
    display: none;
  }

  .hero {
    padding: 3.4rem 0 2.4rem;
  }

  .home-grid {
    padding-top: 2.2rem;
  }

  .post {
    padding-top: 3rem;
  }

  .footer-inner {
    flex-direction: column;
    gap: 1.2rem;
  }

  .post-card::before {
    left: -0.6rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}