:root {
  --bg: #F2F6FA;
  --ink: #0B0B0D;
  --ink-70: #3C4249;
  --ink-50: #5E656C;
  --line: rgba(11, 11, 13, .16);
  --line-soft: rgba(11, 11, 13, .09);
  --accent: #EEF23A;
  --dot: rgba(11, 11, 13, .055);
  --dot-gap: 30px;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --sans: "Instrument Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --pad: clamp(20px, 5vw, 88px);
  color-scheme: light
}

* {
  box-sizing: border-box
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%
}

body {
  margin: 0;
  background-color: var(--bg);
  background-image: radial-gradient(var(--dot) 1.4px, transparent 0);
  background-size: var(--dot-gap) var(--dot-gap);
  background-position: -5px -5px;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 19px;
  line-height: 1.72;
  -webkit-font-smoothing: antialiased
}

::selection {
  background: var(--accent);
  color: var(--ink)
}

body {
  caret-color: var(--ink);
  scrollbar-color: var(--line) transparent
}

:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px;
  border-radius: 4px
}

a {
  color: var(--ink);
  text-underline-offset: .18em;
  text-decoration-thickness: 1px;
  text-decoration-color: var(--line)
}

a:hover {
  text-decoration-color: var(--ink)
}

img {
  display: block;
  max-width: 100%;
  height: auto
}

.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 6;
  opacity: .032;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)' opacity='0.55'/%3E%3C/svg%3E")
}

.wrap {
  width: 100%;
  max-width: calc(68ch + var(--pad)*2);
  margin: 0 auto;
  padding: 0 var(--pad)
}

.nav {
  position: sticky;
  top: 0;
  z-index: 5;
  backdrop-filter: saturate(1.4) blur(14px);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  background: rgba(242, 246, 250, .72);
  border-bottom: 1px solid var(--line-soft)
}

.nav-in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: 62px
}

.mark {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none
}

.mark-badge {
  width: 26px;
  height: 26px;
  border: 1.4px solid var(--ink);
  border-radius: 8px;
  display: grid;
  place-items: center;
  font-size: 11px;
  letter-spacing: -.06em;
  line-height: 1
}

.nav-back {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink-70);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px
}

.nav-back:hover {
  color: var(--ink)
}

.post {
  padding: clamp(48px, 8vh, 92px) 0 clamp(64px, 10vh, 120px)
}

h1 {
  margin: 0;
  font-size: clamp(32px, 4.6vw, 54px);
  line-height: 1.06;
  letter-spacing: -.035em;
  font-weight: 600;
  text-wrap: balance;
  max-width: 22ch
}

.meta {
  margin-top: 22px;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--ink-50);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px
}

.rule {
  margin: 38px 0 0;
  border: 0;
  border-top: 1px solid var(--line-soft)
}

.body {
  margin-top: 38px
}

.body p {
  margin: 0 0 1.3em
}

.body h2 {
  margin: 2.1em 0 .6em;
  font-size: clamp(23px, 2.3vw, 29px);
  line-height: 1.2;
  letter-spacing: -.028em;
  font-weight: 600;
  text-wrap: balance
}

.body h3 {
  margin: 1.9em 0 .5em;
  font-size: clamp(19px, 1.7vw, 22px);
  line-height: 1.3;
  letter-spacing: -.02em;
  font-weight: 600
}

.body ul,
.body ol {
  margin: 0 0 1.3em;
  padding-left: 1.25em
}

.body li {
  margin: 0 0 .5em
}

.body strong {
  font-weight: 600
}

.body blockquote {
  margin: 1.6em 0;
  padding: 2px 0 2px 22px;
  border-left: 2px solid var(--ink);
  font-size: 1.04em;
  color: var(--ink-70)
}

.body blockquote p:last-child {
  margin-bottom: 0
}

.post-fig {
  margin: 2.2em 0
}

.post-fig.portrait {
  max-width: 330px;
  margin-left: auto;
  margin-right: auto
}

.post-fig img,
.post-fig video {
  box-shadow: 0 14px 34px -26px rgba(11, 11, 13, .55)
}

.lost-img {
  margin: 2em 0;
  padding: 18px 20px;
  border: 1px dashed var(--line);
  border-radius: 12px;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--ink-50);
  background: rgba(255, 255, 255, .5)
}

.body hr {
  margin: 2.6em auto;
  width: 64px;
  border: 0;
  border-top: 1.4px solid var(--ink);
  opacity: .5
}

.post-fig img,
.post-fig video {
  width: 100%;
  height: auto;
  display: block;
  border: 1.4px solid var(--ink);
  border-radius: 13px;
  background: #fff
}

.end {
  margin-top: 64px;
  padding-top: 30px;
  border-top: 1px solid var(--line)
}

.end-note {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink-50);
  line-height: 1.7
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1.4px solid var(--ink);
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  margin-top: 22px;
  transition: transform .22s ease, background .22s ease, color .22s ease
}

.btn:hover {
  background: var(--ink);
  color: var(--bg);
  transform: translateY(-2px)
}

.index-list {
  list-style: none;
  margin: 38px 0 0;
  padding: 0;
  border-top: 1px solid var(--line)
}

.index-list li {
  border-bottom: 1px solid var(--line-soft)
}

.index-row {
  display: block;
  padding: 26px 10px;
  border-radius: 12px;
  text-decoration: none;
  transition: background .24s ease
}

.index-row:hover {
  background: rgba(255, 255, 255, .75)
}

.index-date {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-50)
}

.index-title {
  display: block;
  margin-top: 8px;
  font-size: 23px;
  letter-spacing: -.022em;
  font-weight: 600;
  line-height: 1.25
}

.index-ex {
  display: block;
  margin-top: 8px;
  font-size: 16px;
  color: var(--ink-70);
  line-height: 1.55
}

@media (max-width:640px) {
  body {
    font-size: 17px
  }
}

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

  .btn,
  .index-row {
    transition: none
  }
}