@font-face {
  font-family: "DankMono";
  src: url("./DankMono-Regular.ttf") format("truetype");
  font-display: swap;
}

/* ---------------------------------------------------------------- tokens -- */

:root {
  --font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "DankMono", "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --bg: #ffffff;
  --bg-soft: #f5f6fb;
  --surface: #ffffff;
  --surface-2: #f0f2f9;
  --border: rgb(15 23 42 / 10%);
  --border-strong: rgb(15 23 42 / 16%);

  --text: #0f172a;
  --text-soft: #475569;
  --text-dim: #64748b;

  --brand: #7c3aed;
  --brand-soft: #a78bfa;
  --cyan: #0891b2;
  --pink: #db2777;
  --good: #059669;
  --bad: #e11d48;

  --code-bg: #12162a;
  --code-text: #e2e5f5;

  --shadow-sm: 0 1px 2px rgb(15 23 42 / 6%), 0 4px 12px rgb(15 23 42 / 5%);
  --shadow-lg: 0 24px 60px rgb(15 23 42 / 12%);

  --radius: 14px;
  --radius-lg: 22px;
  --topbar-h: 62px;
  --sidebar-w: 288px;
  --content-w: 860px;

  color-scheme: light;
}

:root:not([data-theme="light"]) {
  @media (prefers-color-scheme: dark) {
    --bg: #0a0c16;
    --bg-soft: #0e1120;
    --surface: #12162a;
    --surface-2: #191e37;
    --border: rgb(255 255 255 / 9%);
    --border-strong: rgb(255 255 255 / 16%);

    --text: #e9ecfb;
    --text-soft: #b3bade;
    --text-dim: #8b93bb;

    --brand: #a78bfa;
    --brand-soft: #c4b5fd;
    --cyan: #22d3ee;
    --pink: #f472b6;
    --good: #34d399;
    --bad: #fb7185;

    --code-bg: #0d1020;
    --code-text: #e2e5f5;

    --shadow-sm: 0 1px 2px rgb(0 0 0 / 40%), 0 6px 20px rgb(0 0 0 / 30%);
    --shadow-lg: 0 30px 70px rgb(0 0 0 / 50%);

    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --bg: #0a0c16;
  --bg-soft: #0e1120;
  --surface: #12162a;
  --surface-2: #191e37;
  --border: rgb(255 255 255 / 9%);
  --border-strong: rgb(255 255 255 / 16%);

  --text: #e9ecfb;
  --text-soft: #b3bade;
  --text-dim: #8b93bb;

  --brand: #a78bfa;
  --brand-soft: #c4b5fd;
  --cyan: #22d3ee;
  --pink: #f472b6;
  --good: #34d399;
  --bad: #fb7185;

  --code-bg: #0d1020;
  --code-text: #e2e5f5;

  --shadow-sm: 0 1px 2px rgb(0 0 0 / 40%), 0 6px 20px rgb(0 0 0 / 30%);
  --shadow-lg: 0 30px 70px rgb(0 0 0 / 50%);

  color-scheme: dark;
}

/* ------------------------------------------------------------------ base -- */

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

* {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--topbar-h) + 20px);
  -webkit-text-size-adjust: 100%;
}

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

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

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16.5px;
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

[hidden] {
  display: none !important;
}

svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentcolor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex: none;
}

a {
  color: var(--brand);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
  border-radius: 6px;
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 200;
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--brand);
  color: #fff;
  transform: translateY(-160%);
  transition: transform 0.18s ease;
}

.skip-link:focus {
  transform: translateY(0);
}

/* --------------------------------------------------------------- topbar -- */

.progress {
  position: fixed;
  inset: 0 0 auto;
  height: 2px;
  z-index: 60;
  background: transparent;
}

.progress__bar {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--brand), var(--cyan));
}

.topbar {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  gap: 14px;
  padding-inline: clamp(12px, 3vw, 26px);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--text);
  font-weight: 800;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.brand:hover {
  text-decoration: none;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--brand), var(--cyan));
  color: #fff;
  font-family: var(--font-mono);
  font-size: 14px;
}

.brand__accent {
  background: linear-gradient(135deg, var(--brand), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.topbar__actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.topbar .topbar__menu {
  display: none;
}

.icon-button {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--border);
  border-radius: 11px;
  background: var(--surface);
  color: var(--text-soft);
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.icon-button:hover {
  color: var(--brand);
  border-color: var(--brand);
  transform: translateY(-1px);
}

.theme-toggle__moon {
  display: none;
}

:root[data-theme="dark"] .theme-toggle__sun,
:root:not([data-theme="light"]) .theme-toggle__sun {
  display: none;
}

:root[data-theme="dark"] .theme-toggle__moon,
:root:not([data-theme="light"]) .theme-toggle__moon {
  display: block;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) .theme-toggle__sun {
    display: block;
  }

  :root:not([data-theme="dark"]) .theme-toggle__moon {
    display: none;
  }
}

/* --------------------------------------------------------------- search -- */

.search {
  position: relative;
  flex: 1;
  max-width: 380px;
  margin-left: 6px;
}

.search__icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 17px;
  height: 17px;
  color: var(--text-dim);
  pointer-events: none;
}

.search__input {
  width: 100%;
  height: 38px;
  padding: 0 38px 0 36px;
  border: 1px solid var(--border);
  border-radius: 11px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
  font-size: 14.5px;
}

.search__input::placeholder {
  color: var(--text-dim);
}

.search__input:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand) 22%, transparent);
}

.search__hint {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  min-width: 20px;
  padding: 1px 6px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface-2);
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 11.5px;
  text-align: center;
  pointer-events: none;
}

.search__results {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  z-index: 70;
  max-height: min(60vh, 420px);
  overflow-y: auto;
  padding: 6px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-lg);
  list-style: none;
}

.search__results a {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 11px;
  border-radius: 9px;
  color: var(--text);
  font-size: 14.5px;
}

.search__results a:hover,
.search__results a.is-active {
  background: var(--surface-2);
  color: var(--brand);
  text-decoration: none;
}

.search__results small {
  margin-left: auto;
  color: var(--text-dim);
  font-size: 12px;
  white-space: nowrap;
}

/* --------------------------------------------------------------- layout -- */

.shell {
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
  gap: clamp(16px, 3vw, 44px);
  max-width: 1400px;
  margin-inline: auto;
  padding: calc(var(--topbar-h) + 8px) clamp(16px, 3vw, 30px) 0;
}

.sidebar {
  position: sticky;
  top: calc(var(--topbar-h) + 14px);
  align-self: start;
  height: calc(100vh - var(--topbar-h) - 28px);
  overflow-y: auto;
  overscroll-behavior: contain;
  padding-right: 6px;
  scrollbar-width: thin;
}

.nav__title {
  margin-bottom: 10px;
  color: var(--text-dim);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.nav__sections,
.nav__list {
  list-style: none;
}

.nav__section + .nav__section {
  margin-top: 18px;
}

.nav__section-link {
  display: block;
  padding: 6px 10px;
  border-radius: 9px;
  color: var(--text);
  font-size: 14.5px;
  font-weight: 700;
}

.nav__section-link:hover {
  background: var(--surface-2);
  text-decoration: none;
}

.nav__list {
  margin: 4px 0 0 10px;
  padding-left: 10px;
  border-left: 1px solid var(--border);
}

.nav__group {
  margin: 12px 0 4px;
  color: var(--text-dim);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.nav__link {
  display: block;
  padding: 5px 10px;
  margin-left: -11px;
  border-left: 2px solid transparent;
  border-radius: 0 8px 8px 0;
  color: var(--text-soft);
  font-size: 14px;
  transition: color 0.14s ease, background 0.14s ease, border-color 0.14s ease;
}

.nav__link:hover {
  color: var(--text);
  background: var(--surface-2);
  text-decoration: none;
}

.nav__link.is-current {
  color: var(--brand);
  border-left-color: var(--brand);
  background: color-mix(in srgb, var(--brand) 10%, transparent);
  font-weight: 600;
}

.nav__empty {
  padding: 10px;
  color: var(--text-dim);
  font-size: 14px;
}

.main {
  min-width: 0;
  padding-bottom: 80px;
}

/* ----------------------------------------------------------------- hero -- */

.hero {
  position: relative;
  overflow: hidden;
  margin-bottom: 46px;
  padding: clamp(38px, 6vw, 72px) clamp(22px, 4vw, 56px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-soft);
  isolation: isolate;
}

.hero__glow {
  position: absolute;
  inset: -55% -20% auto;
  height: 150%;
  z-index: -1;
  background:
    radial-gradient(closest-side, color-mix(in srgb, var(--brand) 40%, transparent), transparent) 12% 30% / 62% 78% no-repeat,
    radial-gradient(closest-side, color-mix(in srgb, var(--cyan) 34%, transparent), transparent) 82% 20% / 55% 70% no-repeat,
    radial-gradient(closest-side, color-mix(in srgb, var(--pink) 24%, transparent), transparent) 55% 70% / 50% 60% no-repeat;
  filter: blur(14px);
  opacity: 0.55;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(closest-side at 50% 40%, #000 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(closest-side at 50% 40%, #000 40%, transparent 100%);
  opacity: 0.7;
}

.hero__inner {
  max-width: 720px;
}

.hero__eyebrow {
  display: inline-block;
  margin-bottom: 16px;
  padding: 5px 13px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface) 70%, transparent);
  color: var(--text-soft);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.hero__title {
  font-size: clamp(2.1rem, 5.4vw, 3.5rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.035em;
  text-wrap: balance;
  background: linear-gradient(120deg, var(--text) 32%, var(--brand) 62%, var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__lede {
  margin-top: 18px;
  color: var(--text-soft);
  font-size: clamp(1rem, 1.7vw, 1.13rem);
  text-wrap: pretty;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 22px;
  border: 1px solid transparent;
  border-radius: 11px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.button:hover {
  transform: translateY(-2px);
  text-decoration: none;
}

.button--primary {
  background: linear-gradient(135deg, var(--brand), var(--cyan));
  color: #fff;
  box-shadow: 0 10px 26px color-mix(in srgb, var(--brand) 34%, transparent);
}

.button--ghost {
  border-color: var(--border-strong);
  background: var(--surface);
  color: var(--text);
}

.button--ghost:hover {
  border-color: var(--brand);
  color: var(--brand);
}

.button--sm {
  padding: 8px 14px;
  font-size: 14px;
}

.icon-github {
  width: 17px;
  height: 17px;
  fill: currentcolor;
  stroke: none;
}

.hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(18px, 4vw, 46px);
  margin-top: 36px;
  padding-top: 26px;
  border-top: 1px solid var(--border);
}

.hero__stat dd {
  order: -1;
  font-size: clamp(1.7rem, 3.4vw, 2.3rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--brand), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__stat dt {
  color: var(--text-dim);
  font-size: 13px;
  font-weight: 600;
}

/* ---------------------------------------------------------------- prose -- */

.prose {
  max-width: var(--content-w);
}

.prose > * + * {
  margin-top: 1.15em;
}

.prose h2,
.prose h3,
.prose h4,
.prose h5 {
  scroll-margin-top: calc(var(--topbar-h) + 22px);
  letter-spacing: -0.022em;
  line-height: 1.25;
  text-wrap: balance;
}

.prose h2 {
  margin-top: 2.4em;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: clamp(1.7rem, 3.6vw, 2.15rem);
  font-weight: 800;
}

.prose h2::before {
  content: "";
  display: block;
  width: 46px;
  height: 4px;
  margin-bottom: 18px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--brand), var(--cyan));
}

.prose h3 {
  margin-top: 2.1em;
  font-size: clamp(1.32rem, 2.5vw, 1.62rem);
  font-weight: 700;
}

.prose h4 {
  margin-top: 1.7em;
  color: var(--text-soft);
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.prose h5 {
  margin-top: 1.6em;
  font-size: 1rem;
  font-weight: 600;
}

.heading-anchor {
  margin-left: 10px;
  color: var(--brand);
  font-weight: 600;
  opacity: 0;
  transition: opacity 0.14s ease;
}

.prose :is(h2, h3, h4):hover .heading-anchor,
.heading-anchor:focus-visible {
  opacity: 0.65;
}

.prose p {
  color: var(--text-soft);
  text-wrap: pretty;
}

.prose strong {
  color: var(--text);
  font-weight: 650;
}

.prose ul,
.prose ol {
  padding-left: 1.35em;
  color: var(--text-soft);
}

.prose li + li {
  margin-top: 0.4em;
}

.prose li::marker {
  color: var(--brand);
}

.prose blockquote {
  position: relative;
  padding: 18px 22px 18px 24px;
  border: 1px solid var(--border);
  border-left: 3px solid var(--brand);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: linear-gradient(
    100deg,
    color-mix(in srgb, var(--brand) 8%, var(--surface)),
    var(--surface) 65%
  );
}

.prose blockquote p {
  color: var(--text);
  font-size: 1.03rem;
}

.prose blockquote p + p {
  margin-top: 0.7em;
}

.prose img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 1.7em auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  background: var(--surface);
}

.prose hr {
  height: 1px;
  margin: 2.4em 0;
  border: 0;
  background: var(--border);
}

.prose :not(pre) > code {
  padding: 0.16em 0.42em;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface-2);
  color: var(--pink);
  font-family: var(--font-mono);
  font-size: 0.9em;
  word-break: break-word;
}

.compare {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: -0.5em;
  padding: 9px 15px;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 650;
}

.compare--bad {
  background: color-mix(in srgb, var(--bad) 12%, transparent);
  color: var(--bad);
}

.compare--good {
  background: color-mix(in srgb, var(--good) 13%, transparent);
  color: var(--good);
}

/* ------------------------------------------------------------ code card -- */

.code-card {
  margin: 1.5em 0;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  background: var(--code-bg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.code-card__bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px 8px 16px;
  border-bottom: 1px solid rgb(255 255 255 / 8%);
  background: rgb(255 255 255 / 3%);
}

.code-card__lang {
  color: #9aa3c7;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.code-card__copy {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
  padding: 5px 11px;
  border: 1px solid rgb(255 255 255 / 12%);
  border-radius: 8px;
  background: transparent;
  color: #9aa3c7;
  font: inherit;
  font-size: 12.5px;
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.code-card__copy svg {
  width: 14px;
  height: 14px;
}

.code-card__copy:hover {
  color: #fff;
  border-color: rgb(255 255 255 / 30%);
}

.code-card__copy.is-copied {
  color: var(--good);
  border-color: color-mix(in srgb, var(--good) 55%, transparent);
}

.code-card pre {
  overflow-x: auto;
  padding: 18px 20px;
  scrollbar-width: thin;
}

.code-card code {
  display: block;
  color: var(--code-text);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.72;
  tab-size: 2;
}

/* highlight.js theme, tuned to the palette above (identical in both themes
   because the code surface is always dark). */
.hljs-comment,
.hljs-quote {
  color: #6b739b;
  font-style: italic;
}

.hljs-keyword,
.hljs-selector-tag,
.hljs-literal,
.hljs-doctag {
  color: #c4a2fc;
}

.hljs-string,
.hljs-regexp,
.hljs-addition {
  color: #7ee2b8;
}

.hljs-number,
.hljs-symbol,
.hljs-bullet {
  color: #f8a5c2;
}

.hljs-title,
.hljs-title.function_,
.hljs-section {
  color: #7cd4fd;
}

.hljs-title.class_,
.hljs-type,
.hljs-built_in,
.hljs-class .hljs-title {
  color: #fdba74;
}

.hljs-attr,
.hljs-attribute,
.hljs-property,
.hljs-variable,
.hljs-template-variable {
  color: #e2e5f5;
}

.hljs-params {
  color: #d5daf5;
}

.hljs-meta,
.hljs-operator,
.hljs-punctuation {
  color: #9aa3c7;
}

.hljs-deletion {
  color: #fb7185;
}

.hljs-emphasis {
  font-style: italic;
}

.hljs-strong {
  font-weight: 700;
}

/* --------------------------------------------------------------- footer -- */

.footer {
  max-width: var(--content-w);
  margin-top: 70px;
  padding-top: 26px;
  border-top: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 14px;
}

.footer p + p {
  margin-top: 8px;
}

.footer code {
  padding: 0.12em 0.38em;
  border-radius: 5px;
  background: var(--surface-2);
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 40;
  width: 42px;
  height: 42px;
  box-shadow: var(--shadow-sm);
}

/* ------------------------------------------------------------ responsive -- */

@media (max-width: 1080px) {
  :root {
    --sidebar-w: 250px;
  }
}

@media (max-width: 900px) {
  .topbar .topbar__menu {
    display: grid;
  }

  .search__hint {
    display: none;
  }

  .shell {
    grid-template-columns: minmax(0, 1fr);
  }

  .sidebar {
    position: fixed;
    top: var(--topbar-h);
    left: 0;
    z-index: 45;
    width: min(310px, 84vw);
    height: calc(100vh - var(--topbar-h));
    padding: 20px 16px;
    border-right: 1px solid var(--border);
    background: var(--bg);
    transform: translateX(-102%);
    transition: transform 0.24s ease;
  }

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

  .sidebar__scrim {
    position: fixed;
    inset: var(--topbar-h) 0 0;
    z-index: 44;
    background: rgb(0 0 0 / 45%);
  }

  .prose,
  .footer {
    max-width: none;
  }
}

@media (max-width: 620px) {
  body {
    font-size: 16px;
  }

  .brand__text,
  .topbar__repo span {
    display: none;
  }

  .search {
    max-width: none;
  }

  .hero {
    padding-inline: 20px;
  }
}