:root {
  color-scheme: light dark;
  --bg: #f7f8fb;
  --surface: #ffffff;
  --surface-soft: #f0f2f8;
  --text: #121624;
  --muted: #5d6475;
  --line: #dfe3ec;
  --accent: #5b3df5;
  --accent-strong: #4222dd;
  --accent-soft: #eeeaff;
  --code: #f2f3f7;
  --header: rgba(247, 248, 251, 0.88);
  --shadow: 0 18px 55px rgba(27, 34, 58, 0.08);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 8% 0%, rgba(91, 61, 245, 0.11), transparent 28rem),
    radial-gradient(circle at 92% 12%, rgba(27, 188, 155, 0.08), transparent 24rem),
    var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--accent-strong);
  text-underline-offset: 0.18em;
}

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

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 20;
  transform: translateY(-200%);
  border-radius: 0.5rem;
  background: var(--text);
  color: var(--surface);
  padding: 0.65rem 0.9rem;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid color-mix(in srgb, var(--line) 82%, transparent);
  background: var(--header);
  backdrop-filter: blur(18px);
}

.site-header__inner,
.site-footer__inner,
.page-shell {
  width: min(1120px, calc(100% - 2rem));
  margin-inline: auto;
}

.site-header__inner {
  min-height: 4.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--text);
  font-weight: 760;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.wordmark__mark {
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border-radius: 0.6rem;
  background: var(--text);
  color: var(--surface);
  font-size: 1.15rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.92rem;
}

.site-nav a {
  color: var(--muted);
  font-weight: 650;
  text-decoration: none;
}

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

.site-nav .site-nav__primary {
  border: 1px solid var(--text);
  border-radius: 999px;
  background: var(--text);
  color: var(--surface);
  padding: 0.48rem 0.85rem;
}

.page-shell {
  padding-block: 3.5rem 5rem;
}

.site-intro {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 2rem;
  margin-bottom: 2rem;
  border: 1px solid var(--line);
  border-radius: 1.35rem;
  background:
    linear-gradient(135deg, rgba(91, 61, 245, 0.09), transparent 44%),
    var(--surface);
  box-shadow: var(--shadow);
  padding: clamp(1.4rem, 4vw, 2.6rem);
}

.eyebrow {
  margin: 0 0 0.35rem;
  color: var(--accent-strong);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.site-intro h2 {
  margin: 0;
  font-size: clamp(1.7rem, 4vw, 2.75rem);
  letter-spacing: -0.045em;
  line-height: 1.06;
}

.site-intro p:last-child {
  max-width: 49rem;
  margin: 0.8rem 0 0;
  color: var(--muted);
}

.intro-link {
  white-space: nowrap;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
  padding: 0.62rem 0.95rem;
  font-size: 0.88rem;
  font-weight: 720;
  text-decoration: none;
}

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

.markdown-body {
  border: 1px solid var(--line);
  border-radius: 1.35rem;
  background: var(--surface);
  box-shadow: var(--shadow);
  padding: clamp(1.25rem, 4.5vw, 4rem);
}

.markdown-body > h1:first-child {
  margin-top: 0;
  font-size: clamp(2.25rem, 7vw, 4.8rem);
  letter-spacing: -0.065em;
  line-height: 0.98;
}

.markdown-body h2 {
  margin-top: 3.5rem;
  padding-bottom: 0.55rem;
  border-bottom: 1px solid var(--line);
  font-size: clamp(1.55rem, 3vw, 2.15rem);
  letter-spacing: -0.035em;
  line-height: 1.2;
}

.markdown-body h3 {
  margin-top: 2.4rem;
  font-size: 1.23rem;
  letter-spacing: -0.015em;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3 {
  scroll-margin-top: 6rem;
}

.markdown-body blockquote {
  margin: 1.8rem 0;
  border-left: 4px solid var(--accent);
  border-radius: 0 0.75rem 0.75rem 0;
  background: var(--accent-soft);
  padding: 0.9rem 1.2rem;
  color: var(--text);
}

.markdown-body blockquote p {
  margin: 0;
  font-size: 1.08rem;
  font-weight: 570;
}

.markdown-body ul,
.markdown-body ol {
  padding-left: 1.45rem;
}

.markdown-body li {
  margin-block: 0.55rem;
  padding-left: 0.15rem;
}

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

.markdown-body code {
  border: 1px solid var(--line);
  border-radius: 0.35rem;
  background: var(--code);
  padding: 0.08rem 0.3rem;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.88em;
}

.markdown-body pre {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 0.8rem;
  background: var(--code);
  padding: 1rem;
}

.markdown-body pre code {
  border: 0;
  background: transparent;
  padding: 0;
}

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

.markdown-body > p:nth-of-type(1) img {
  display: inline-block;
  margin: 0 0.16rem 0.2rem 0;
  vertical-align: middle;
}

.markdown-body table {
  display: block;
  overflow-x: auto;
  width: 100%;
  border-collapse: collapse;
}

.markdown-body th,
.markdown-body td {
  border: 1px solid var(--line);
  padding: 0.6rem 0.75rem;
  text-align: left;
}

.markdown-body th {
  background: var(--surface-soft);
}

.markdown-body hr {
  height: 1px;
  margin: 2.5rem 0;
  border: 0;
  background: var(--line);
}

.not-found {
  min-height: 46vh;
  display: grid;
  align-content: center;
}

.not-found h1 {
  max-width: 14ch;
  margin: 0;
  font-size: clamp(2.4rem, 7vw, 5rem);
  letter-spacing: -0.06em;
  line-height: 0.98;
}

.not-found p:not(.eyebrow) {
  max-width: 42rem;
  color: var(--muted);
}

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--surface);
}

.site-footer__inner {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  padding-block: 1.6rem;
  color: var(--muted);
  font-size: 0.84rem;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 720px) {
  .site-header__inner {
    min-height: 4rem;
  }

  .wordmark {
    font-size: 0.92rem;
  }

  .site-nav > a:not(.site-nav__primary) {
    display: none;
  }

  .page-shell {
    padding-block: 1.5rem 3rem;
  }

  .site-intro {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .intro-link {
    justify-self: start;
  }

  .markdown-body {
    border-radius: 1rem;
  }

  .site-footer__inner {
    flex-direction: column;
    gap: 0.5rem;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #090c14;
    --surface: #111622;
    --surface-soft: #171d2b;
    --text: #f3f5fb;
    --muted: #a7afc0;
    --line: #293145;
    --accent: #a795ff;
    --accent-strong: #b9acff;
    --accent-soft: #1d1937;
    --code: #0c111c;
    --header: rgba(9, 12, 20, 0.88);
    --shadow: 0 20px 70px rgba(0, 0, 0, 0.28);
  }

  body {
    background:
      radial-gradient(circle at 8% 0%, rgba(124, 99, 255, 0.16), transparent 28rem),
      radial-gradient(circle at 92% 12%, rgba(27, 188, 155, 0.08), transparent 24rem),
      var(--bg);
  }
}

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