:root {
  color-scheme: light;
  --bg: #ffffff;
  --bg-elevated: rgba(0, 0, 0, 0.02);
  --fg: rgba(0, 0, 0, 0.92);
  --mono12: rgba(0, 0, 0, 0.92);
  --mono11: rgba(0, 0, 0, 0.68);
  --mono10: rgba(0, 0, 0, 0.56);
  --mono9: rgba(0, 0, 0, 0.44);
  --mono8: rgba(0, 0, 0, 0.22);
  --mono5: rgba(0, 0, 0, 0.12);
  --mono3: rgba(0, 0, 0, 0.06);
  --transparent: rgba(255, 255, 255, 0);

  --font-sans:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  --font-serif:
    "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  --font-mono:
    "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", monospace;

  --page-width: 1072px;
  --content-width: 640px;
  --page-top: 128px;
  --footer-height: 48px;
  --body-margin-left: max(24px, env(safe-area-inset-left));
  --body-margin-right: max(24px, env(safe-area-inset-right));

  --text: 16px;
  --text-s: 14px;
  --text-xs: 12px;
  --text-xl: 34px;
  --leading: 28px;
  --leading-s: 22px;
  --leading-xl: 40px;

  --gap: 8px;
  --gap-s: 6px;
  --gap-2x: 16px;
  --gap-4x: 32px;
  --gap-8x: 64px;

  --radius-xs: 4px;
  --radius-s: 6px;
  --radius: 10px;
  --radius-l: 14px;
  --radius-xl: 18px;

  --transition-fast: 160ms ease;
  --transition-med: 220ms ease;
  --transition-slow: 320ms ease;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #1c1c1c;
  --bg-elevated: rgba(255, 255, 255, 0.02);
  --fg: rgba(255, 255, 255, 0.92);
  --mono12: rgba(255, 255, 255, 0.92);
  --mono11: rgba(255, 255, 255, 0.68);
  --mono10: rgba(255, 255, 255, 0.56);
  --mono9: rgba(255, 255, 255, 0.44);
  --mono8: rgba(255, 255, 255, 0.22);
  --mono5: rgba(255, 255, 255, 0.12);
  --mono3: rgba(255, 255, 255, 0.06);
  --transparent: rgba(28, 28, 28, 0);
}

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

html {
  min-height: 100%;
  font-size: 16px;
  line-height: 24px;
  scroll-padding-top: calc(var(--gap-8x) + var(--gap-2x));
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100%;
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
}

#root {
  min-height: 100%;
}

body,
input,
button,
textarea,
select {
  font-family: var(--font-sans);
}

a {
  color: inherit;
  text-decoration: none;
  transition:
    color var(--transition-fast),
    opacity var(--transition-fast),
    border-color var(--transition-fast);
  border-bottom: 1px dashed #888;
}

img,
svg,
video,
canvas {
  display: block;
  max-width: 100%;
}

button,
input,
textarea,
select {
  margin: 0;
  color: inherit;
  font: inherit;
}

em,
i {
  font-family: var(--font-serif);
  font-style: italic;
}

strong,
b {
  font-weight: 600;
}

code,
kbd,
samp,
pre {
  font-family: var(--font-mono);
}

::selection {
  background: rgba(0, 0, 0, 0.12);
  color: var(--mono12);
}

:root[data-theme="dark"] ::selection {
  background: rgba(255, 255, 255, 0.16);
  color: var(--mono12);
}

.shell {
  width: 100%;
  max-width: var(--content-width);
  margin: 0 auto;
}

.text-link,
.prose a,
.writing-content a {
  color: var(--mono12);
}

.text-link:hover,
.prose a:hover,
.writing-content a:hover {
  opacity: 0.72;
}

.prose,
.writing-content {
  color: var(--fg);
}

.prose > *:first-child,
.writing-content > *:first-child {
  margin-top: 0;
}

.prose p,
.prose li,
.prose blockquote,
.writing-content p,
.writing-content li,
.writing-content blockquote {
  margin: 0;
  font-size: var(--text);
  line-height: var(--leading);
  letter-spacing: 0;
  font-feature-settings: "kern", "ss02";
}

.prose > :not(:last-child),
.writing-content > :not(:last-child) {
  margin-bottom: 28px;
}

.prose h1,
.prose h2,
.prose h3,
.prose h4,
.writing-content h1,
.writing-content h2,
.writing-content h3,
.writing-content h4 {
  margin: 56px 0 28px;
  color: var(--mono12);
  font-weight: 500;
  line-height: 1.25;
  font-feature-settings: "kern", "calt", "case";
}

.prose h1,
.writing-content h1 {
  font-size: 34px;
  line-height: 40px;
}

.prose h2,
.writing-content h2 {
  font-size: 24px;
  line-height: 32px;
}

.prose h3,
.writing-content h3 {
  font-size: 18px;
  line-height: 28px;
}

.prose h4,
.writing-content h4 {
  font-size: 16px;
  line-height: 28px;
}

.prose ul,
.prose ol,
.writing-content ul,
.writing-content ol {
  margin: 0;
  padding-left: 16px;
}

.prose li + li,
.writing-content li + li {
  margin-top: var(--gap);
}

.prose li::marker,
.writing-content li::marker {
  color: var(--mono11);
}

.prose blockquote,
.writing-content blockquote {
  position: relative;
  color: var(--mono11);
}

.prose blockquote > *,
.writing-content blockquote > * {
  color: inherit;
}

.prose hr,
.writing-content hr {
  margin: var(--gap-4x) 0;
  border: 0;
  border-top: 1px solid var(--mono5);
}

.prose pre,
.writing-content pre {
  margin: 0;
  padding: 20px 24px;
  overflow-x: auto;
  border: 1px solid var(--mono5);
  border-radius: var(--radius);
  background: var(--bg-elevated);
}

.prose pre code,
.writing-content pre code {
  padding: 0;
  background: transparent;
  font-size: 14px;
  line-height: 22px;
}

.prose code:not(pre code),
.writing-content code:not(pre code) {
  padding: 0.12em 0.36em;
  border-radius: var(--radius-xs);
  background: rgba(0, 0, 0, 0.06);
  font-size: 0.875em;
}

:root[data-theme="dark"] .prose code:not(pre code),
:root[data-theme="dark"] .writing-content code:not(pre code) {
  background: rgba(255, 255, 255, 0.08);
}

.prose img,
.writing-content img {
  border-radius: var(--radius-s);
}

@media (max-width: 1024px) {
  :root {
    --page-top: 128px;
  }
}

@media (max-width: 768px) {
  :root {
    --page-top: 64px;
    --body-margin-left: max(20px, env(safe-area-inset-left));
    --body-margin-right: max(20px, env(safe-area-inset-right));
  }
}

@media (max-width: 520px) {
  :root {
    --body-margin-left: max(18px, env(safe-area-inset-left));
    --body-margin-right: max(18px, env(safe-area-inset-right));
  }
}