@import url('https://fonts.googleapis.com/css2?family=Atkinson+Hyperlegible:wght@400;700&display=swap');

@font-face {
  font-family: "0xProto Mono";
  src: url("../fonts/0xProto/0xProtoNerdFontMono-Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "0xProto Mono";
  src: url("../fonts/0xProto/0xProtoNerdFontMono-Bold.ttf") format("truetype");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "0xProto Mono";
  src: url("../fonts/0xProto/0xProtoNerdFontMono-Italic.ttf") format("truetype");
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}

:root {
  --bg-dark: #252729;
  --fg-dark: #f3f3f3;
  --accent-dark: #59a9f5;
  --panel-dark: #111111;
  --border-dark: rgba(255, 255, 255, 0.08);

  --bg-light: #f8f7f3;
  --fg-light: #121212;
  --accent-light: #ff7a18;
  --panel-light: #ffffff;
  --border-light: rgba(0, 0, 0, 0.08);

  --bg: var(--bg-dark);
  --fg: var(--fg-dark);
  --accent: var(--accent-dark);
  --panel: var(--panel-dark);
  color-scheme: dark;
  --border-soft: var(--border-dark);

  --grid-gap: 0px;
}

:root[data-theme="dark"] {
  --bg: var(--bg-dark);
  --fg: var(--fg-dark);
  --accent: var(--accent-dark);
  --panel: var(--panel-dark);
  --border-soft: var(--border-dark);
  color-scheme: dark;
}

:root[data-theme="light"] {
  --bg: var(--bg-light);
  --fg: var(--fg-light);
  --accent: var(--accent-light);
  --panel: var(--panel-light);
  --border-soft: var(--border-light);
  color-scheme: light;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    --bg: var(--bg-light);
    --fg: var(--fg-light);
    --accent: var(--accent-light);
    --panel: var(--panel-light);
    --border-soft: var(--border-light);
    color-scheme: light;
  }
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --bg: var(--bg-dark);
    --fg: var(--fg-dark);
    --accent: var(--accent-dark);
    --panel: var(--panel-dark);
    --border-soft: var(--border-dark);
    color-scheme: dark;
  }
}

* {
  box-sizing: border-box;
}

body {
  display: flex;
  height: 100dvh;
  background: var(--bg);
  color: var(--fg);
  position: relative;
  font-family: "Atkinson Hyperlegible", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

#container {
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  max-width: 1500px;
  height: 100%;
  position: relative;
  z-index: 1;
}

main {
  display: flex;
  padding-top: 5px;
  min-height: 0;
  min-block-size: 0;
  flex: 1 1 auto;
  gap: var(--grid-gap);
  padding: var(--grid-gap) 0;
  position: relative;
}

#editor {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  flex: 1 1 auto;
  overflow: hidden;
  padding: clamp(16px, 4vw, 64px);
  block-size: 100%;
  overflow-y: auto;
  overflow-x: hidden;
  flex: 1 1 auto;
  min-height: 0;
  scrollbar-width: thin;
  scrollbar-color: var(--accent) var(--bg);
  /* font-size: 1rem; */
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 16px;
  background: var(--bg);
  flex: 0 0 auto;
  font-family: "0xProto Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
}

.topbar .brand {
  letter-spacing: .04em;
  font-weight: bold;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.topbar .topbar-href {
  color: inherit;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px;
  transition: all 0.25s ease;
}

.topbar .topbar-href:hover,
.toc-tree a:focus {
  color: var(--accent);
  letter-spacing: .04em;
}

.topbar button {
  border: none;
  background: inherit;
  cursor: pointer;
  color: var(--fg);
  font-size: 1rem;
}

.sidebar-backdrop.visible {
  pointer-events: all;
  opacity: 1;
}

.toc-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  z-index: 15;
}

.toc-backdrop.visible {
  pointer-events: all;
  opacity: 1;
}

@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    transform: translateX(-110%);
    width: min(85vw, 320px);
    max-width: 320px;
    background: var(--bg);
    z-index: 20;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5);
    border-right: 1px solid var(--accent);
  }
}

.sidebar summary {
  cursor: pointer;
  list-style: none;
  padding: 2px 0;
  margin-left: -16px;
  color: var(--fg);
  font-weight: normal;
}

.sidebar summary::-webkit-details-marker {
  display: none;
}

.sidebar summary::marker {
  content: "";
}

.sidebar summary::before {
  content: "▾";
  display: inline-block;
  width: 1em;
  text-align: center;
  transition: transform .2s;
  margin-right: 2px;
  color: var(--fg);
}

.sidebar details:not([open])>summary::before {
  transform: rotate(-90deg);
}

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

.sidebar a:hover,
.sidebar a:focus {
  color: inherit;
  text-decoration: none;
}

.tree,
.tree ul {
  list-style: none;
  margin: 0;
  padding-left: 16px;
}

.tree li {
  margin: 2px 0;
}

.toc-panel {
  background: var(--bg);
  padding: 12px 16px;
  flex: 0 0 auto;
  width: clamp(220px, 20vw, 280px);
  max-height: 100%;
  overflow-y: auto;
  position: relative;
}

.toc-tree {
  font-size: 0.9rem;
  line-height: 1.4;
  padding-left: 0;
}

.toc-tree ul {
  list-style: none;
  padding-left: 16px;
  margin: 0.2rem 0;
}

.toc-tree li {
  margin: 0.2rem 0;
}

.toc-tree a {
  color: inherit;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 0;
  transition: all 0.25s ease;
}

.toc-tree a:hover,
.toc-tree a:focus {
  color: var(--accent);
  letter-spacing: .04em;
}

.tabs {
  display: flex;
  flex: 0 0 auto;
  border-bottom: 1px solid var(--accent);
  align-items: stretch;
  justify-content: space-between;
}

.tabs-left {
  display: flex;
  align-items: stretch;
  flex: 1 1 auto;
}

#sidebar-toggle {
  padding: 8px 12px;
  border: none;
  border-right: 1px solid var(--accent);
  background: inherit;
  font-size: large;
  cursor: pointer;
}

.tab {
  padding: 8px 12px;
  border-right: 1px solid var(--accent);
  flex: 1 1 auto;
  display: flex;
  align-items: center;
}

@media (max-width: 768px) {
  .scrollable {
    padding: 10px 10px;
  }
}

.content {
  margin-inline: auto;
  width: min(96ch, 100%);
  min-width: 0;
  letter-spacing: 0.01em;
}

.content a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px dotted var(--accent);
}

.content pre {
  padding: 12px;
  overflow: auto;
  border: 1px solid var(--border-soft);
  border-radius: 10px;
  background: var(--panel);
}

.content code {
  font-family: "0xProto Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.content img,
.content video,
.content iframe,
.content figure {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 1.5rem auto;
  border-radius: 14px;
}

.content figure>img {
  margin: 0;
}

.home-carousel {
  margin: 2rem auto;
  padding: 0;
  border: none;
  border-radius: 18px;
  max-width: min(900px, 100%);
}

.home-carousel__frame {
  width: 100%;
  aspect-ratio: 3 / 2;
  border-radius: 18px;
  overflow: hidden;
}

#home-carousel-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  border-radius: 18px;
  background: var(--bg);
}

.quote {
  margin-block: 1.5rem;
  padding: 1rem 1.5rem;
  border-left: 2px solid var(--accent);
  background: var(--panel);
  font-style: italic;
}

@supports (background: color-mix(in srgb, white 50%, black 50%)) {
  .quote {
    background: color-mix(in srgb, var(--bg) 94%, var(--accent) 6%);
  }
}

.quote-text {
  margin: 0 0 .5rem 0;
  line-height: 1.6;
}

.quote-meta {
  font-size: 0.9em;
  color: var(--fg);
  opacity: 0.9;
}

.quote-from {
  font-weight: 500;
}

.quote-author {
  font-style: normal;
}

.show-mobile {
  display: none;
}

@media (max-width: 768px) {
  .show-mobile {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
}

@media (max-width: 1024px) {
  .toc-toggle-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
}

@media (max-width: 1024px) {
  .toc-panel {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    transform: translateX(110%);
    width: min(80vw, 320px);
    z-index: 30;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5);
    border-left: 1px solid var(--accent);
    background: var(--bg);
    padding: 80px 20px 20px;
  }

  .toc-panel.is-open {
    transform: translateX(0);
  }

  body.toc-open {
    overflow: hidden;
  }
}