:root {
  --background: oklch(0.955 0.018 82);
  --foreground: oklch(0.205 0.018 67);
  --card: oklch(0.985 0.01 82);
  --card-foreground: oklch(0.205 0.018 67);
  --primary: oklch(0.53 0.17 34);
  --primary-foreground: oklch(0.98 0.01 82);
  --muted: oklch(0.91 0.018 80);
  --muted-foreground: oklch(0.48 0.025 67);
  --border: oklch(0.81 0.03 75);
  --ring: oklch(0.53 0.17 34);
  --radius: 0.35rem;
  --font-sans-native: 'Avenir Next', Avenir, 'Helvetica Neue', Arial, sans-serif;
  --font-serif-native: 'Iowan Old Style', 'Palatino Linotype', Palatino, Georgia, serif;
}

.dark {
  --background: oklch(0.19 0.016 67);
  --foreground: oklch(0.93 0.018 82);
  --card: oklch(0.235 0.018 67);
  --card-foreground: oklch(0.93 0.018 82);
  --primary: oklch(0.7 0.15 42);
  --primary-foreground: oklch(0.18 0.016 67);
  --muted: oklch(0.27 0.018 67);
  --muted-foreground: oklch(0.7 0.025 80);
  --border: oklch(0.34 0.025 67);
  --ring: oklch(0.7 0.15 42);
}

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

html {
  background: var(--background);
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--foreground);
  background:
    radial-gradient(circle at 12% 2%, color-mix(in oklab, var(--primary) 7%, transparent) 0, transparent 24rem),
    var(--background);
  font-family: var(--font-sans-native);
  text-rendering: optimizeLegibility;
}

::selection {
  color: var(--primary-foreground);
  background: var(--primary);
}

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

.site-shell {
  width: min(100% - 40px, 760px);
  margin: 0 auto;
}

.masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 88px;
  border-bottom: 1px solid var(--border);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-size: 0.88rem;
  font-weight: 650;
  letter-spacing: 0.015em;
}

.wordmark-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  color: var(--primary);
  font-family: var(--font-serif-native);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: -0.06em;
  transform: rotate(-4deg);
}

.quiet-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--muted-foreground);
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  transition: color 160ms ease;
}

.quiet-link:hover,
.quiet-link:focus-visible {
  color: var(--primary);
}

.intro {
  padding: clamp(76px, 13vw, 124px) 0 clamp(72px, 12vw, 112px);
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 25px;
  color: var(--primary);
  font-size: 0.69rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 0 4px color-mix(in oklab, var(--primary) 12%, transparent);
}

.intro h1 {
  max-width: 700px;
  margin: 0;
  font-family: var(--font-serif-native);
  font-size: clamp(2.7rem, 7vw, 5.2rem);
  font-weight: 400;
  line-height: 0.98;
  letter-spacing: -0.052em;
}

.intro h1 em {
  color: var(--primary);
  font-weight: 400;
}

.intro > p {
  max-width: 520px;
  margin: 31px 0 0;
  color: var(--muted-foreground);
  font-family: var(--font-serif-native);
  font-size: clamp(1rem, 2vw, 1.14rem);
  line-height: 1.68;
}

.feed {
  border-top: 1px solid var(--foreground);
}

.feed-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 19px 0 17px;
  border-bottom: 1px solid var(--border);
}

.feed-heading h2 {
  margin: 0;
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.feed-heading span {
  color: var(--muted-foreground);
  font-family: var(--font-serif-native);
  font-size: 0.83rem;
  font-style: italic;
}

.post {
  display: grid;
  grid-template-columns: 142px minmax(0, 1fr);
  gap: 32px;
  padding: 49px 0 55px;
  border-bottom: 1px solid var(--border);
}

.post-meta {
  display: flex;
  flex-direction: column;
  gap: 11px;
}

.post-meta time {
  color: var(--muted-foreground);
  font-size: 0.69rem;
  font-weight: 650;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.post-number {
  color: var(--primary);
  font-family: var(--font-serif-native);
  font-size: 1.7rem;
  font-style: italic;
  line-height: 1;
}

.post-body p {
  margin: 0;
  font-family: var(--font-serif-native);
  font-size: clamp(1.19rem, 2.6vw, 1.42rem);
  line-height: 1.58;
  letter-spacing: -0.012em;
}

.post-body p + p {
  margin-top: 1.1em;
}

.post-link,
.permalink {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 27px;
  border-bottom: 1px solid color-mix(in oklab, var(--primary) 45%, transparent);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  transition: border-color 160ms ease;
}

.post-link:hover,
.post-link:focus-visible,
.permalink:hover,
.permalink:focus-visible {
  border-color: currentColor;
}

.post-link + .permalink {
  margin-left: 24px;
}

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  padding: 34px 0 54px;
  color: var(--muted-foreground);
  font-size: 0.69rem;
  line-height: 1.5;
  letter-spacing: 0.04em;
}

.note-page {
  min-height: 100vh;
}

.note-detail {
  padding: clamp(74px, 12vw, 116px) 0 clamp(82px, 13vw, 128px);
}

.note-detail .eyebrow {
  margin-bottom: 19px;
}

.note-detail h1 {
  max-width: 660px;
  margin: 0;
  font-family: var(--font-serif-native);
  font-size: clamp(2.6rem, 7vw, 5rem);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.05em;
}

.note-detail > time {
  display: block;
  margin-top: 25px;
  color: var(--muted-foreground);
  font-size: 0.7rem;
  font-weight: 650;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.note-copy {
  max-width: 620px;
  margin-top: clamp(54px, 9vw, 82px);
  padding-top: 40px;
  border-top: 1px solid var(--border);
}

.note-copy p {
  margin: 0;
  font-family: var(--font-serif-native);
  font-size: clamp(1.25rem, 3vw, 1.55rem);
  line-height: 1.62;
  letter-spacing: -0.014em;
}

.note-copy p + p {
  margin-top: 1.2em;
}

.note-footer {
  border-top: 1px solid var(--border);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--primary);
  font-weight: 700;
}

.not-found {
  min-height: calc(100vh - 88px);
  padding: clamp(82px, 14vw, 140px) 0;
}

.not-found h1 {
  margin: 0;
  font-family: var(--font-serif-native);
  font-size: clamp(2.6rem, 7vw, 5rem);
  font-weight: 400;
  letter-spacing: -0.05em;
}

.not-found p {
  margin: 24px 0 38px;
  color: var(--muted-foreground);
  font-family: var(--font-serif-native);
  font-size: 1.2rem;
  line-height: 1.6;
}

@media (max-width: 620px) {
  .site-shell {
    width: min(100% - 30px, 760px);
  }

  .masthead {
    min-height: 76px;
  }

  .intro {
    padding: 68px 0 78px;
  }

  .intro h1 br {
    display: none;
  }

  .intro > p {
    margin-top: 25px;
  }

  .post {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 39px 0 44px;
  }

  .post-meta {
    flex-direction: row;
    align-items: baseline;
    justify-content: space-between;
  }

  .post-number {
    font-size: 1.45rem;
  }

  .footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .note-detail {
    padding: 66px 0 84px;
  }

  .note-copy {
    margin-top: 49px;
    padding-top: 31px;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}