@import url("https://fonts.googleapis.com/css2?family=Inter:ital,opsz,wght@0,14..32,100..900;1,14..32,100..900&family=JetBrains+Mono:ital,wght@0,100..800;1,100..800&display=swap");

*,
::before,
::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --sidebar-width: 300px;

  --color-canvas-default: #ffffff;
  --color-canvas-subtle: #f6f8fa;
  --color-border-default: #d0d7de;
  --color-border-muted: #d8dee4;
  --color-fg-default: #1f2328;
  --color-fg-muted: #656d76;
  --color-accent-fg: #0969da;
  --color-neutral-muted: rgba(175, 184, 193, 0.2);

  --background: var(--color-canvas-default);
  --foreground: var(--color-fg-default);
}

html.dark {
  --color-canvas-default: #0d1117;
  --color-canvas-subtle: #161b22;
  --color-border-default: #30363d;
  --color-border-muted: #21262d;
  --color-fg-default: #e6edf3;
  --color-fg-muted: #7d8590;
  --color-accent-fg: #2f81f7;
  --color-neutral-muted: rgba(110, 118, 129, 0.4);

  --background: var(--color-canvas-default);
  --foreground: var(--color-fg-default);
}

html,
body {
  height: 100%;
  scrollbar-gutter: stable;
}

::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--color-border-default);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-fg-muted);
}

body {
  font-family: "Inter", sans-serif;
  min-height: 100vh;
  background: var(--background);
  color: var(--foreground);
}

.left-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--color-border-muted);
}

.left-sidebar > div {
  flex-shrink: 0;
  padding: 1rem;
}

.left-sidebar .logo a {
  font-size: 1.5rem;
  font-weight: 800;
  text-decoration: none;
  color: var(--color-fg-default);
  letter-spacing: -0.02em;
}

.left-sidebar .utilities {
  display: flex;
}

.left-sidebar .utilities button.search {
  width: 100%;
  padding-top: 6px;
  padding-bottom: 6px;
  margin-right: 1rem;
  text-align: left;
  padding-left: 1rem;
  border-radius: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--color-canvas-subtle);
  border: 1px solid var(--color-border-default);
  color: var(--color-fg-muted);
  font-size: 0.9rem;
  transition: 0.2s;
}

.left-sidebar .utilities button.search:hover {
  border-color: var(--color-border-muted);
  background-color: var(--color-neutral-muted);
}

.left-sidebar .utilities button.theme-toggle {
  background-color: transparent;
  border: none;
  cursor: pointer;
  color: var(--color-fg-muted);
  transition: color 0.2s;
}

.left-sidebar .utilities button.theme-toggle:hover {
  color: var(--color-fg-default);
}

.left-sidebar .utilities button.theme-toggle svg.sun-icon {
  display: none;
}

.left-sidebar .utilities button.theme-toggle svg.moon-icon {
  display: block;
}

html.dark .left-sidebar .utilities button.theme-toggle svg.sun-icon {
  display: block;
}

html.dark .left-sidebar .utilities button.theme-toggle svg.moon-icon {
  display: none;
}

.left-sidebar nav {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  min-height: 0;
  padding: 0 0.5rem;
}

.left-sidebar nav > span,
.left-sidebar .graph > span {
  flex-shrink: 0;
  padding: 1.5rem 1rem 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--color-fg-muted);
  opacity: 0.8;
}

.left-sidebar .graph {
  flex-shrink: 0;
  height: 350px;
  display: flex;
  flex-direction: column;
  padding: 0;
  border-top: 1px solid var(--color-border-muted);
  background: var(--color-canvas-subtle);
  overflow: hidden;
}

.left-sidebar .graph #graph-container {
  flex: 1;
  min-height: 0;
}

.content {
  margin-left: var(--sidebar-width);
  margin-right: var(--sidebar-width);
  min-height: 100vh;
  padding: 0 1rem;
}

.right-sidebar {
  position: fixed;
  top: 0;
  right: 0;
  width: var(--sidebar-width);
  height: 100vh;
  display: flex;
  flex-direction: column;
  border-left: 1px solid var(--color-border-muted);
}

.right-sidebar > div {
  padding: 0;
  border-bottom: 1px solid var(--color-border-muted);
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.right-sidebar > div:last-child {
  border-bottom: none;
}

.right-sidebar > div > span {
  flex-shrink: 0;
  display: block;
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  color: var(--color-fg-muted);
  padding: 1.5rem 1rem 0.75rem;
  opacity: 0.8;
}

.right-sidebar .toc {
  flex: 1;
  overflow-y: auto;
  min-height: 0;
  padding: 0 0.5rem 2rem;
}

.right-sidebar .outgoingLinks,
.right-sidebar .backlinks {
  flex-shrink: 0;
  max-height: 30vh;
  overflow-y: auto;
  min-height: 0;
  padding: 0 0.5rem 1.5rem;
  border-top: 1px solid var(--color-border-muted);
}

.footer {
  max-width: 720px;
  margin: 3rem auto 0;
  padding-top: 2rem;
  padding-bottom: 2rem;
  border-top: 1px solid var(--color-border-muted);
  text-align: center;
  color: var(--color-fg-muted);
  font-size: 0.875rem;
}

.footer .socials {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.footer a {
  color: var(--color-fg-muted);
  text-decoration: none;
}

.footer a:hover {
  color: var(--color-accent-fg);
  text-decoration: underline;
}

.footer .socials ul {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 0.5rem;
}

.content article {
  max-width: 720px;
  margin: 1rem auto;
}

.link-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
}

.link-list li {
  margin: 0;
  min-width: 0;
}

.link-list a {
  display: block;
  padding: 0.35rem 0.5rem;
  color: var(--color-fg-muted);
  text-decoration: none;
  border-radius: 6px;
  font-size: 0.85rem;
  line-height: 1.4;
  transition: all 0.15s ease-in-out;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  border: 1px solid transparent;
}

.link-list a:hover {
  background-color: var(--color-canvas-subtle);
  color: var(--color-accent-fg);
  padding-left: 0.75rem;
}

/* TOC Nesting */
.link-list li.toc-level-1 a {
  font-weight: 600;
  color: var(--color-fg-default);
}
.link-list li.toc-level-2 a {
  padding-left: 1rem;
}
.link-list li.toc-level-3 a {
  padding-left: 1.75rem;
  font-size: 0.8rem;
}
.link-list li.toc-level-4 a {
  padding-left: 2.5rem;
  font-size: 0.8rem;
}
.link-list li.toc-level-5 a {
  padding-left: 3.25rem;
  font-size: 0.8rem;
}

.link-list li.toc-level-2 a:hover {
  padding-left: 1.25rem;
}
.link-list li.toc-level-3 a:hover {
  padding-left: 2rem;
}
.link-list li.toc-level-4 a:hover {
  padding-left: 2.75rem;
}
.link-list li.toc-level-5 a:hover {
  padding-left: 3.5rem;
}