/* blog.patterns.works — site.css
   The Patterns look: cream paper, ink panels, lime highlights, a blue serif accent,
   Mona Sans for the big uppercase type and Pretendard for Korean text.
   Colours, fonts and sizes live in the variables below. */

/* ── tokens ─────────────────────────────────────────────── */

:root {
  --cream: #f3f3ec;
  --cream-2: #e8e9df;
  --paper: #fbfbf7;
  --ink: #0e1220;
  --ink-2: #161b2d;
  --night: #090a0f;
  --lime: #d5ff3f;
  --brand: #5986f8;
  --brand-ink: #2e62e5;

  --text: #12141d;
  --text-soft: #4c5060;
  --text-faint: #686c7a; /* a shade darker than patterns.works for AA contrast on cream */
  --text-inv: #f3f3ec;
  --text-inv-soft: #a9aec0;
  --prose: #262934;
  --line: #12141d1f;
  --line-inv: #f3f3ec24;

  --font-sans: 'Mona Sans', 'Pretendard Variable', Pretendard, -apple-system, BlinkMacSystemFont, system-ui, Roboto,
    'Helvetica Neue', 'Segoe UI', 'Apple SD Gothic Neo', 'Noto Sans KR', 'Malgun Gothic', sans-serif;
  --font-ko: 'Pretendard Variable', Pretendard, -apple-system, BlinkMacSystemFont, system-ui, 'Apple SD Gothic Neo',
    'Noto Sans KR', 'Malgun Gothic', sans-serif;
  --font-serif: 'Instrument Serif', 'Times New Roman', 'Noto Serif KR', serif;
  --font-hanja: 'Noto Serif KR', 'Nanum Myeongjo', AppleMyungjo, 'Songti SC', 'Hiragino Mincho ProN', 'Noto Serif CJK KR', serif;
  --font-mono: ui-monospace, 'SF Mono', SFMono-Regular, Menlo, Consolas, 'Liberation Mono', monospace;

  --gutter: clamp(16px, 2.4vw, 36px);
  --header-h: 84px;
  --measure: 720px;
  --wide: 1280px;
  --ease: cubic-bezier(0.65, 0.05, 0, 1);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --accent: var(--brand-ink);

  /* small drawings (pillars, notes, map) */
  --v-bg: var(--paper);
  --v-fg: var(--text);
  --v-soft: #6a6e7b;
  --v-line: #12141d1f;
  --v-fill: #eceee3;
  --v-hi: var(--lime);
  --v-hi-ink: var(--ink);
  --v-hi-stroke: #8fb51a;
  --v-blue: var(--brand-ink);

  color-scheme: light;
}

[data-header='dark'] {
  --accent: var(--lime);
}
[data-header='light'] {
  --accent: var(--brand-ink);
}

/* ── base ───────────────────────────────────────────────── */

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 16px);
  /* keeps the page from shifting sideways when the menu or image viewer locks scrolling */
  scrollbar-gutter: stable;
}

@media (prefers-reduced-motion: no-preference) {
  html:focus-within {
    scroll-behavior: smooth;
  }
}

html,
body {
  max-width: 100%;
  overflow-x: clip;
}

/* While the menu or the image viewer is open the page stays put; the ink background fills
   the space the scrollbar leaves behind. */
html.menu-open,
html.lightbox-open {
  overflow: hidden;
  background: var(--ink);
}

body {
  margin: 0;
  background: var(--cream);
  color: var(--text);
  font-family: var(--font-sans);
  font-weight: 450;
  line-height: 1.5;
  letter-spacing: -0.01em;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-tap-highlight-color: transparent;
}

[lang='ko'] {
  font-family: var(--font-ko);
  letter-spacing: -0.02em;
  word-break: keep-all;
  overflow-wrap: break-word;
}

h1,
h2,
h3,
h4,
h5,
h6,
p,
ul,
ol,
dl,
dd,
figure,
blockquote,
pre {
  margin: 0;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-size: inherit;
  font-weight: inherit;
}

ul,
ol {
  padding: 0;
}

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

img {
  height: auto;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
  letter-spacing: inherit;
}

button {
  margin: 0;
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
}

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

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

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

main:focus {
  outline: none;
}

html:not(.js) .js-only {
  display: none !important;
}

.sr-only {
  position: absolute !important;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 16px;
  border-radius: 999px;
  background: var(--ink);
  color: var(--text-inv);
  font-weight: 700;
  transform: translateY(-160%);
  transition: transform 0.3s var(--ease);
}

.skip-link:focus {
  transform: none;
}

/* ── type ───────────────────────────────────────────────── */

.display {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 800;
  line-height: 0.88;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  text-wrap: balance;
}

.serif {
  font-family: var(--font-serif);
  font-style: normal;
  font-weight: 400;
  letter-spacing: -0.005em;
  text-transform: uppercase;
}

.display .serif {
  color: var(--accent);
  font-size: 1.05em;
  line-height: 0.85;
}

.eyebrow {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

/* ── buttons ────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6em;
  height: 50px;
  padding: 0 24px;
  border: 0;
  border-radius: 999px;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  white-space: nowrap;
  cursor: pointer;
  transition:
    background-color 0.3s ease,
    color 0.3s ease,
    box-shadow 0.4s var(--ease-out),
    border-color 0.3s ease;
}

.btn svg {
  flex-shrink: 0;
  transition: transform 0.5s var(--ease);
}

.btn:hover svg {
  transform: translateX(3px);
}

.btn--lime {
  background: var(--lime);
  color: var(--ink);
}

.btn--lime:hover {
  box-shadow: 0 0 0 6px color-mix(in srgb, var(--lime) 30%, transparent);
}

.btn--line {
  border: 1.5px solid;
  background: none;
  color: inherit;
}

.btn--line:hover {
  border-color: var(--text);
  background: var(--text);
  color: var(--cream);
}

[data-header='dark'] .btn--line:hover {
  border-color: var(--text-inv);
  background: var(--text-inv);
  color: var(--ink);
}

.btn--sm {
  height: 42px;
  padding: 0 18px;
  font-size: 12px;
}

/* ── header ─────────────────────────────────────────────── */

.site-header {
  --h-fg: var(--text);
  --h-line: #12141dd9;
  --h-bg: var(--cream);
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  padding: 0 var(--gutter);
  color: var(--h-fg);
  pointer-events: none;
  transition:
    color 0.45s var(--ease),
    transform 0.55s var(--ease);
}

/* A soft backdrop once the page has scrolled, so the header stays legible over text. */
.site-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: color-mix(in srgb, var(--h-bg) 84%, transparent);
  -webkit-backdrop-filter: blur(14px) saturate(1.3);
  backdrop-filter: blur(14px) saturate(1.3);
  box-shadow: 0 1px 0 color-mix(in srgb, var(--h-fg) 9%, transparent);
  opacity: 0;
  transition:
    opacity 0.35s ease,
    background-color 0.45s var(--ease);
}

.site-header[data-scrolled]::before {
  opacity: 1;
}

.site-header[data-tone='dark'],
.site-header.is-menu-open {
  --h-fg: var(--text-inv);
  --h-line: #f3f3ece6;
  --h-bg: var(--ink);
}

.site-header.is-menu-open::before {
  opacity: 0;
}

.site-header.is-hidden {
  transform: translateY(-110%);
}

.site-header > * {
  position: relative;
  pointer-events: auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  border-radius: 10px;
}

.brand-mark {
  flex-shrink: 0;
  color: var(--brand);
  transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.brand:hover .brand-mark {
  transform: rotate(-8deg) scale(1.04);
}

.brand-name {
  font-family: var(--font-ko);
  font-size: 1.32rem;
  font-weight: 650;
  letter-spacing: -0.035em;
}

.brand-tag {
  margin-left: 0.45rem;
  padding-left: 0.85rem;
  border-left: 1px solid color-mix(in srgb, currentColor 30%, transparent);
  font-size: 9.5px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.72;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.menu-btn {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  padding: 0;
  border: 1.5px solid var(--h-line);
  border-radius: 14px;
  background: none;
  color: inherit;
  cursor: pointer;
  transition:
    border-color 0.45s var(--ease),
    background-color 0.3s ease;
}

.menu-btn:hover {
  background: color-mix(in srgb, currentColor 10%, transparent);
}

html:not(.js) .menu-btn {
  display: none;
}

.menu-btn-lines {
  position: relative;
  display: block;
  width: 20px;
  height: 12px;
}

.menu-btn-lines i {
  position: absolute;
  right: 0;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition:
    transform 0.6s var(--ease),
    width 0.6s var(--ease),
    top 0.6s var(--ease);
}

.menu-btn-lines i:first-child {
  top: 0;
  width: 20px;
}

.menu-btn-lines i:last-child {
  top: 10px;
  width: 12px;
}

.menu-btn[aria-expanded='true'] .menu-btn-lines i {
  top: 5px;
  width: 20px;
}

.menu-btn[aria-expanded='true'] .menu-btn-lines i:first-child {
  transform: rotate(45deg);
}

.menu-btn[aria-expanded='true'] .menu-btn-lines i:last-child {
  transform: rotate(-45deg);
}

/* ── menu ───────────────────────────────────────────────── */

.menu {
  --accent: var(--lime);
  position: fixed;
  inset: 0;
  z-index: 50;
  background: var(--ink);
  color: var(--text-inv);
  clip-path: inset(0 0 100% 0);
  visibility: hidden;
  transition:
    clip-path 0.85s var(--ease),
    visibility 0s linear 0.85s;
}

.menu.is-open {
  clip-path: inset(0);
  visibility: visible;
  transition:
    clip-path 0.85s var(--ease),
    visibility 0s;
}

.menu-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(24px, 4vw, 72px);
  height: 100%;
  padding: calc(var(--header-h) + 12px) var(--gutter) var(--gutter);
  overflow-y: auto;
}

.menu-tiles {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 14px;
  min-height: 0;
}

.menu-tile {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 0;
  overflow: hidden;
  border: 1px solid var(--line-inv);
  border-radius: 18px;
  background: var(--ink-2);
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.6s var(--ease-out),
    transform 0.9s var(--ease),
    filter 0.35s ease,
    border-color 0.35s ease;
}

.menu.is-open .menu-tile {
  opacity: 1;
  transform: none;
  transition-delay: calc(var(--i) * 70ms + 0.22s), calc(var(--i) * 70ms + 0.22s), 0s, 0s;
}

.menu-tile.is-dim {
  filter: brightness(0.45) saturate(0.4);
}

.menu-tile.is-hot {
  border-color: color-mix(in srgb, var(--lime) 60%, transparent);
}

.menu-tile-logo {
  display: grid;
  place-items: center;
  color: var(--brand);
}

.menu-tile-art {
  width: 78%;
  font-size: clamp(6px, min(0.7vw, 1.15vh), 12px);
}

.menu-tile-art--map {
  position: absolute;
  inset: 0;
  width: auto;
}

.menu-tile-label {
  position: absolute;
  bottom: 12px;
  left: 14px;
  color: var(--text-inv-soft);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.menu-nav {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
  min-height: 0;
  text-align: right;
}

.menu-links {
  margin: 0;
  padding: 0;
  list-style: none;
}

.menu-links li {
  padding: 0.02em 0;
  overflow: hidden;
  overflow: clip;
}

.menu-links a {
  position: relative;
  display: inline-flex;
  align-items: flex-start;
  gap: 0.08em;
  font-size: clamp(48px, 6.6vw, 112px);
  font-weight: 800;
  line-height: 0.9;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  transform: translateY(105%);
  transition:
    transform 0.9s var(--ease),
    color 0.25s ease;
}

.menu.is-open .menu-links a {
  transform: none;
  transition-delay: calc(var(--i) * 70ms + 0.16s), 0s;
}

.menu-links a:hover,
.menu-links a:focus-visible {
  color: var(--lime);
  outline: none;
}

.menu-links a.is-current {
  color: var(--text-inv-soft);
}

.menu-links a.is-current::after {
  content: '';
  position: absolute;
  top: 46%;
  right: -3%;
  left: -3%;
  height: 0.07em;
  background: var(--lime);
}

.menu-ext {
  width: 0.36em;
  height: 0.36em;
  margin-top: 0.08em;
}

.menu-foot {
  display: grid;
  grid-template-columns: auto auto;
  align-items: end;
  justify-content: end;
  gap: 18px 28px;
  opacity: 0;
  transition: opacity 0.6s;
}

.menu.is-open .menu-foot {
  opacity: 1;
  transition-delay: 0.5s;
}

.menu-badge {
  grid-row: span 2;
  width: 84px;
  color: var(--text-inv-soft);
}

.menu-contact {
  display: grid;
  gap: 6px;
}

.menu-contact .eyebrow {
  color: var(--text-inv-soft);
}

.menu-contact a {
  font-size: clamp(16px, 1.5vw, 21px);
  font-weight: 700;
}

.menu-small {
  display: flex;
  justify-content: flex-end;
  gap: 18px;
  color: var(--text-inv-soft);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.menu-contact a:hover,
.menu-small a:hover {
  color: var(--lime);
}

/* the spinning badge */
.badge {
  position: relative;
  display: inline-grid;
  place-items: center;
  width: 96px;
  aspect-ratio: 1;
}

.badge-ring {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  animation: spin 22s linear infinite;
}

.badge-ring text {
  fill: currentColor;
  font-family: var(--font-sans);
  font-size: 9.4px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.badge-mark {
  position: relative;
  width: 30%;
  height: auto;
  color: var(--brand);
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ── small drawings ─────────────────────────────────────── */

.menu-tile-art,
.promo-art--dark {
  --v-bg: transparent;
  --v-fg: var(--text-inv);
  --v-soft: #a2a8bb;
  --v-line: #f3f3ec29;
  --v-fill: #f3f3ec12;
  --v-blue: #9db8ff;
  --v-hi-stroke: var(--lime);
}

.v-pillars,
.v-notes,
.v-map {
  border-radius: 1em;
  background: var(--v-bg);
  color: var(--v-fg);
  font-family: var(--font-sans);
}

.v-pillars {
  display: grid;
  gap: 1em;
  padding: 1.25em;
}

.v-pillars-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  color: var(--v-soft);
  font-size: 0.8em;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.v-pillars-head span:first-child {
  color: var(--v-fg);
  font-family: var(--font-hanja);
  font-size: 1.45em;
  letter-spacing: 0.12em;
}

.v-pillars-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.5em;
}

.v-pillar {
  display: grid;
  gap: 0.42em;
  text-align: center;
}

.v-pillar-label {
  display: grid;
  gap: 0.1em;
  color: var(--v-soft);
  font-family: var(--font-hanja);
  font-size: 0.9em;
}

.v-pillar-label small {
  font-family: var(--font-sans);
  font-size: 0.72em;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.v-gz {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  border-radius: 0.55em;
  background: var(--v-fill);
  font-family: var(--font-hanja);
  font-size: 2.15em;
  font-weight: 600;
  line-height: 1;
}

.v-gz::after {
  content: '';
  position: absolute;
  top: 0.25em;
  right: 0.25em;
  width: 0.2em;
  height: 0.2em;
  border-radius: 50%;
  background: var(--el);
}

.el-wood {
  --el: #3ea56b;
}
.el-fire {
  --el: #e5553f;
}
.el-earth {
  --el: #d29a1c;
}
.el-metal {
  --el: #9aa3b4;
}
.el-water {
  --el: #3e6ef0;
}

.v-pillars-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4em 0.9em;
  color: var(--v-soft);
  font-size: 0.7em;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.v-pillars-legend span {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
}

.v-pillars-legend i {
  width: 0.62em;
  height: 0.62em;
  border-radius: 50%;
  background: var(--el);
}

.v-notes {
  display: grid;
  gap: 0.7em;
  padding: 1.15em;
}

.v-notes-head {
  display: flex;
  justify-content: space-between;
  gap: 1em;
  padding-bottom: 0.65em;
  border-bottom: 1px solid var(--v-line);
  color: var(--v-soft);
  font-size: 0.72em;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.v-note {
  display: grid;
  gap: 0.3em;
  padding: 0.7em 0.8em;
  border-radius: 0.65em;
  background: var(--v-fill);
}

.v-note:nth-child(2) {
  box-shadow: inset 0.22em 0 0 var(--v-hi-stroke);
}

.v-note small {
  color: var(--v-soft);
  font-size: 0.7em;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.v-note p {
  display: -webkit-box;
  overflow: hidden;
  font-family: var(--font-ko);
  font-size: 1em;
  font-weight: 650;
  line-height: 1.38;
  letter-spacing: -0.02em;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.v-note--ghost p {
  display: grid;
  gap: 0.4em;
  padding: 0.25em 0;
}

.v-note--ghost i {
  height: 0.55em;
  border-radius: 1em;
  background: var(--v-line);
}

.v-note--ghost i:last-child {
  width: 58%;
}

.v-map {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  border-radius: 0;
}

.v-map svg {
  width: 100%;
  height: 100%;
}

.v-map path {
  fill: none;
  stroke: var(--v-line);
  stroke-width: 1px;
  vector-effect: non-scaling-stroke;
}

.v-map path.is-strong {
  stroke: var(--v-soft);
}

.v-map-pin {
  fill: var(--v-blue);
  transition: fill 0.3s;
}

.menu-tile.is-hot .v-map-pin {
  fill: var(--lime);
}

.v-map-pulse {
  fill: none;
  stroke: var(--v-blue);
  stroke-width: 1.2px;
  transform-box: fill-box;
  transform-origin: center;
  animation: pulse 2.4s var(--ease-out) infinite;
}

@keyframes pulse {
  50% {
    opacity: 0.5;
  }
}

/* ── contour field ──────────────────────────────────────── */

.contour-field {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

/* ── page hero ──────────────────────────────────────────── */

.page-hero {
  position: relative;
  display: grid;
  align-items: end;
  min-height: clamp(540px, 80svh, 840px);
  padding: calc(var(--header-h) + 64px) var(--gutter) clamp(48px, 8vh, 92px);
  overflow: hidden;
  background: var(--cream);
  color: var(--text);
}

.page-hero--home {
  min-height: clamp(520px, 76svh, 800px);
}

.page-hero--dark {
  align-items: center;
  min-height: max(600px, 88svh);
  background: var(--ink);
  color: var(--text-inv);
}

.page-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  justify-items: start;
  gap: 24px;
}

.page-hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.page-hero-kicker::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brand);
}

.page-hero-title {
  font-size: clamp(62px, 12.6vw, 232px);
  line-height: 0.84;
}

.page-hero-sub {
  display: grid;
  gap: 6px;
}

.page-hero-sub p {
  font-size: clamp(17px, 1.5vw, 22px);
  font-weight: 650;
}

.page-hero-sub p[lang='en'] {
  color: var(--text-faint);
  font-size: 14px;
  font-weight: 500;
}

.page-hero-sub .page-hero-lede {
  max-width: 34em;
  margin: 2px 0 4px;
  color: var(--text-soft);
  font-size: clamp(15px, 1.1vw, 17px);
  font-weight: 500;
  line-height: 1.6;
}

.page-hero--dark .page-hero-sub p[lang='en'] {
  color: var(--text-inv-soft);
}

.page-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 6px;
}

html.js .page-hero-inner > *,
html.js .post-hero-inner > * {
  opacity: 0;
  animation: fade-up 1s var(--ease-out) forwards;
}

html.js .page-hero-inner > :nth-child(2),
html.js .post-hero-inner > :nth-child(2) {
  animation-delay: 0.1s;
}

html.js .page-hero-inner > :nth-child(3),
html.js .post-hero-inner > :nth-child(3) {
  animation-delay: 0.22s;
}

html.js .page-hero-inner > :nth-child(n + 4),
html.js .post-hero-inner > :nth-child(n + 4) {
  animation-delay: 0.32s;
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ── chips and dots ─────────────────────────────────────── */

.dot {
  flex: none;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--dot, #9aa3b4);
}

.dot--yellow {
  --dot: #d29a1c;
}
.dot--green {
  --dot: #3ea56b;
}
.dot--orange,
.dot--red {
  --dot: #e5553f;
}
.dot--blue {
  --dot: #5986f8;
}
.dot--purple {
  --dot: #8b6cf6;
}
.dot--pink {
  --dot: #e5609b;
}
.dot--muted {
  --dot: #9aa3b4;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px 4px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text-soft);
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0;
}

a.chip:hover {
  border-color: var(--text);
  color: var(--text);
}

.flag {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--lime);
  color: var(--ink);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ── notes (the post list) ──────────────────────────────── */

.notes {
  --accent: var(--lime);
  padding: clamp(72px, 11vh, 120px) var(--gutter) clamp(96px, 14vh, 150px);
  background: var(--ink);
  color: var(--text-inv);
}

.notes--light {
  --accent: var(--brand-ink);
  padding-top: clamp(56px, 8vh, 88px);
  background: var(--cream);
  color: var(--text);
}

.notes-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 24px;
  margin-bottom: clamp(26px, 4vh, 44px);
}

.notes-label {
  color: var(--lime);
}

.notes--light .notes-label {
  color: var(--brand-ink);
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 38px;
  padding: 0 15px;
  border: 1px solid var(--line-inv);
  border-radius: 999px;
  color: var(--text-inv);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  transition:
    background-color 0.25s ease,
    color 0.25s ease,
    border-color 0.25s ease;
}

.filter:hover {
  border-color: var(--text-inv-soft);
}

.filter[aria-pressed='true'] {
  border-color: transparent;
  background: var(--lime);
  color: var(--ink);
}

.notes-count {
  margin-left: auto;
  color: var(--text-inv-soft);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.notes-count b {
  color: var(--text-inv);
}

.notes-empty {
  padding: 48px 0;
  color: var(--text-inv-soft);
  font-family: var(--font-ko);
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr));
  gap: clamp(14px, 1.6vw, 24px);
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 1200px) {
  .cards {
    grid-template-columns: repeat(auto-fill, minmax(500px, 1fr));
  }
}

.card {
  min-width: 0;
}

.card[hidden] {
  display: none;
}

.card-inner {
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--paper);
  color: var(--text);
  box-shadow: 0 40px 70px -40px rgba(0, 0, 0, 0.6);
  transition:
    transform 0.6s var(--ease),
    box-shadow 0.5s ease;
}

.notes--light .card-inner {
  box-shadow: 0 40px 70px -40px rgba(18, 20, 29, 0.5);
}

.card-inner:hover {
  transform: translateY(-6px);
}

.card-inner:has(.card-link:focus-visible) {
  outline: 2px solid var(--lime);
  outline-offset: 4px;
}

.notes--light .card-inner:has(.card-link:focus-visible) {
  outline-color: var(--brand);
}

.card-art {
  position: relative;
  aspect-ratio: 1200 / 630;
  overflow: hidden;
  background: var(--ink);
}

.card-art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1s var(--ease);
}

.card-inner:hover .card-art img {
  transform: scale(1.03);
}

.card-art-empty {
  display: grid;
  place-items: center;
  height: 100%;
  color: var(--lime);
  font-size: clamp(56px, 6vw, 96px);
}

.card-flag,
.card-seen {
  position: absolute;
  top: 14px;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 10.5px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.08em;
}

.card-flag {
  left: 14px;
  background: var(--lime);
  color: var(--ink);
  text-transform: uppercase;
}

.card-seen {
  right: 14px;
  display: none;
  background: color-mix(in srgb, var(--paper) 86%, transparent);
  color: var(--text);
  font-family: var(--font-ko);
  font-size: 11px;
  letter-spacing: 0;
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

.card.is-read .card-seen {
  display: inline-block;
}

.card-body {
  display: grid;
  flex: 1;
  align-content: start;
  gap: 10px;
  min-width: 0;
  padding: 20px 22px 22px;
}

/* Korean keeps words whole; a title with no spaces may still break rather than overflow. */
.card-title,
.nav-card-title,
.post-title,
.author-name,
.contact-card-main {
  overflow-wrap: anywhere;
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 10px;
  color: var(--text-faint);
}

.card-title {
  font-size: clamp(19px, 1.45vw, 23px);
  font-weight: 750;
  line-height: 1.38;
  letter-spacing: -0.035em;
  text-wrap: pretty;
}

.card-title-main,
.card-title-sub {
  display: block;
}

.card-title-sub {
  margin-top: 4px;
  color: var(--text-soft);
  font-size: 0.8em;
  font-weight: 600;
  letter-spacing: -0.025em;
}

.card-link::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  border-radius: inherit;
}

.card-link:focus-visible {
  outline: none;
}

.card-desc {
  display: -webkit-box;
  overflow: hidden;
  color: var(--text-soft);
  font-size: 14.5px;
  line-height: 1.65;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.card-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: auto;
  padding-top: 6px;
  color: var(--brand-ink);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.card-cta svg {
  transition: transform 0.5s var(--ease);
}

.card-inner:hover .card-cta svg {
  transform: translateX(3px);
}

/* ── promo (saju.site) ──────────────────────────────────── */

.promo {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  align-items: center;
  gap: clamp(32px, 5vw, 80px);
  padding: clamp(100px, 15vh, 170px) var(--gutter) clamp(40px, 6vh, 64px);
  overflow: hidden;
  background: var(--cream);
}

.promo-copy {
  position: relative;
  z-index: 1;
  display: grid;
  justify-items: start;
  gap: 22px;
}

.promo-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper);
  font-size: 12px;
  letter-spacing: 0.02em;
  text-transform: none;
}

.promo-title {
  font-size: clamp(48px, 6.6vw, 118px);
}

.promo-ko {
  max-width: 32em;
  color: var(--text-soft);
  font-size: 16px;
  line-height: 1.7;
}

.promo-en {
  max-width: 36em;
  margin: -8px 0 6px;
  color: var(--text-faint);
  font-size: 14px;
  line-height: 1.55;
}

.promo-art {
  position: relative;
  z-index: 1;
  height: clamp(380px, 44vw, 580px);
}

.promo-card {
  position: absolute;
  top: 18%;
  left: 6%;
  width: min(80%, 470px);
  font-size: clamp(9px, 1vw, 14.5px);
  rotate: -4deg;
}

.promo-card > * {
  box-shadow: 0 40px 70px -40px rgba(18, 20, 29, 0.55);
}

.promo-chips {
  position: absolute;
  top: 4%;
  right: 4%;
  display: grid;
  justify-items: end;
  gap: 10px;
}

.promo-chips span {
  padding: 11px 18px;
  border-radius: 999px;
  background: var(--lime);
  color: var(--ink);
  font-size: 15px;
  font-weight: 700;
  box-shadow: 0 16px 30px -18px rgba(18, 20, 29, 0.5);
}

.promo-chips span:nth-child(2) {
  margin-right: 18px;
  background: var(--ink);
  color: var(--text-inv);
  rotate: 5deg;
}

.promo-chips span:nth-child(3) {
  rotate: -4deg;
}

/* ── post ───────────────────────────────────────────────── */

.post-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-h) + clamp(48px, 10vh, 112px)) var(--gutter) clamp(36px, 6vh, 60px);
  background: var(--cream);
}

.post-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  justify-items: start;
  gap: 22px;
  max-width: var(--wide);
  margin: 0 auto;
}

.post-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-soft);
}

.post-kicker::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brand);
}

.post-kicker a:hover {
  color: var(--brand-ink);
}

.post-kicker span {
  opacity: 0.35;
}

.post-title {
  max-width: 17em;
  font-size: clamp(34px, 4.7vw, 70px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.045em;
  text-wrap: balance;
}

.post-title-main,
.post-title-sub {
  display: block;
}

.post-title-sub {
  margin-top: 0.32em;
  color: var(--brand-ink);
  font-size: 0.56em;
  font-weight: 650;
  line-height: 1.3;
  letter-spacing: -0.035em;
}

.post-lede {
  max-width: 40em;
  color: var(--text-soft);
  font-size: clamp(16px, 1.2vw, 18.5px);
  font-weight: 500;
  line-height: 1.7;
}

.post-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
}

.post-facts li {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  padding: 7px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: color-mix(in srgb, var(--paper) 72%, transparent);
  color: var(--text-soft);
  font-size: 12.5px;
  font-weight: 600;
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

.post-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 340px);
  grid-template-areas:
    'sheet side'
    'end side';
  align-items: start;
  gap: clamp(16px, 2.4vw, 32px) clamp(16px, 2.4vw, 32px);
  max-width: calc(var(--wide) + 2 * var(--gutter));
  margin: 0 auto;
  padding: 0 var(--gutter) clamp(48px, 8vh, 80px);
}

.post-sheet {
  grid-area: sheet;
  min-width: 0;
  padding: clamp(28px, 4.6vw, 72px) clamp(20px, 4.6vw, 72px) clamp(28px, 3.6vw, 52px);
  border: 1px solid var(--line);
  border-radius: 30px;
  background: var(--paper);
}

/* The side column runs the full height of the post, so the contents card can stay in view. */
.post-side {
  grid-area: side;
  align-self: stretch;
}

.post-layout--plain .post-side {
  position: sticky;
  top: calc(var(--header-h) + 12px);
  display: grid;
  align-self: start;
  gap: 14px;
}

.post-end {
  grid-area: end;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  gap: 14px;
}

.toc-card {
  position: sticky;
  top: calc(var(--header-h) + 12px);
  max-height: calc(100vh - var(--header-h) - 24px);
  padding: 22px 22px 14px;
  overflow-y: auto;
  overscroll-behavior: contain;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--paper);
  scrollbar-width: thin;
}

.toc-card .eyebrow {
  margin-bottom: 8px;
  color: var(--text-faint);
}

.toc-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.toc-list li + li {
  border-top: 1px solid var(--line);
}

.toc-list a {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 10px;
  padding: 10px 0;
  color: var(--text-soft);
  font-family: var(--font-ko);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: -0.02em;
  word-break: keep-all;
  transition: color 0.2s ease;
}

.toc-list a:hover {
  color: var(--text);
}

.toc-no {
  min-width: 2.2em;
  padding: 3px 0;
  border-radius: 999px;
  color: var(--brand-ink);
  font-family: var(--font-sans);
  font-size: 10.5px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.06em;
  text-align: center;
  transition:
    background-color 0.25s ease,
    color 0.25s ease;
}

.toc-list a.is-active {
  color: var(--text);
  font-weight: 650;
}

.toc-list a.is-active .toc-no {
  background: var(--lime);
  color: var(--ink);
}

.toc-inline {
  display: none;
}

.note-card {
  display: grid;
  gap: 12px;
  padding: 26px 26px 24px;
  border-radius: 28px;
  background: var(--ink);
  color: var(--text-inv);
}

.note-card .eyebrow {
  color: var(--lime);
}

.author-name {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.note-ko {
  font-size: 15px;
  line-height: 1.75;
}

.note-en {
  color: var(--text-inv-soft);
  font-size: 13.5px;
  line-height: 1.6;
}

.note-link {
  display: inline-flex;
  align-items: center;
  justify-self: start;
  gap: 6px;
  margin-top: 4px;
  color: var(--lime);
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.note-link svg {
  transition: transform 0.5s var(--ease);
}

.note-link:hover svg {
  transform: translate(3px, 0);
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 22px;
  border-radius: 28px;
  background: var(--lime);
  color: var(--ink);
  transition: translate 0.5s var(--ease);
}

.contact-card:hover {
  translate: 0 -3px;
}

.contact-card-icon {
  display: grid;
  flex-shrink: 0;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--lime);
}

.contact-card-text {
  display: grid;
  gap: 5px;
  min-width: 0;
}

.contact-card-main {
  overflow-wrap: anywhere;
  font-size: clamp(16px, 1.35vw, 20px);
  font-weight: 800;
}

.contact-card-arrow {
  flex-shrink: 0;
  margin-left: auto;
}

/* the saju.site card beside or after a post */
.saju-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 28px;
  padding: 22px 24px 24px;
  border-radius: 28px;
  background: var(--lime);
  color: var(--ink);
  transition: translate 0.5s var(--ease);
}

.saju-card:hover {
  translate: 0 -3px;
}

.saju-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.saju-card-top > svg {
  transition: transform 0.5s var(--ease);
}

.saju-card:hover .saju-card-top > svg {
  transform: translate(3px, -3px);
}

.saju-card-body {
  display: grid;
  gap: 6px;
}

.saju-card-title {
  font-size: clamp(26px, 2.2vw, 34px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}

.saju-card-text {
  max-width: 24em;
  margin-top: 4px;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.6;
}

.post-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-width: var(--measure);
  margin-top: 3.4em;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
}

.tags li {
  max-width: 100%;
  overflow-wrap: anywhere;
  padding: 7px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text-soft);
  font-size: 13px;
  font-weight: 600;
}

.post-actions {
  display: flex;
  gap: 8px;
}

.post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(14px, 1.6vw, 24px);
  max-width: calc(var(--wide) + 2 * var(--gutter));
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.nav-card {
  position: relative;
  display: grid;
  align-content: start;
  gap: 12px;
  padding: 24px 26px 26px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--paper);
  transition:
    transform 0.5s var(--ease),
    border-color 0.3s ease;
}

.nav-card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--text) 60%, transparent);
}

.nav-card:has(a:focus-visible) {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
}

.nav-card--older {
  grid-column: 2;
  justify-items: end;
  text-align: right;
}

.nav-card-dir {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--brand-ink);
}

.nav-card-title {
  font-size: clamp(17px, 1.4vw, 21px);
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: -0.03em;
}

.nav-card-title a::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
}

.nav-card-title a:focus-visible {
  outline: none;
}

.nav-card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 10px;
  color: var(--text-faint);
  font-size: 12.5px;
  font-weight: 600;
}

.read-progress {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 65;
  height: 3px;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.read-progress i {
  display: block;
  height: 100%;
  background: var(--brand);
  transform: scaleX(var(--p, 0));
  transform-origin: 0 50%;
}

html:not(.js) .read-progress,
html.menu-open .read-progress {
  opacity: 0;
}

/* ── prose ──────────────────────────────────────────────── */

.prose {
  max-width: var(--measure);
  color: var(--prose);
  font-family: var(--font-ko);
  font-size: 17.5px;
  font-weight: 450;
  line-height: 1.86;
  letter-spacing: -0.015em;
  counter-reset: section;
}

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

.prose > h2 {
  margin-top: 2.7em;
  color: var(--text);
  font-size: clamp(24px, 2.1vw, 30px);
  font-weight: 800;
  line-height: 1.34;
  letter-spacing: -0.04em;
  counter-increment: section;
}

.prose > h2::before {
  content: counter(section, decimal-leading-zero);
  display: block;
  margin-bottom: 12px;
  color: var(--brand-ink);
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.09em;
}

.prose > h3 {
  margin-top: 2.1em;
  color: var(--text);
  font-size: clamp(19px, 1.5vw, 22px);
  font-weight: 750;
  line-height: 1.42;
  letter-spacing: -0.035em;
}

.prose > h4 {
  margin-top: 1.9em;
  color: var(--text);
  font-size: 1em;
  font-weight: 750;
  letter-spacing: -0.03em;
}

.prose > :is(h2, h3, h4) + * {
  margin-top: 0.75em;
}

.prose > :first-child {
  margin-top: 0;
}

.heading-anchor {
  margin-left: 0.3em;
  color: var(--brand);
  font-weight: 500;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.prose :is(h2, h3, h4):hover .heading-anchor,
.heading-anchor:focus-visible {
  opacity: 1;
}

.prose a:not(.heading-anchor, .figure__media, [data-footnote-ref], [data-footnote-backref]) {
  color: var(--brand-ink);
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--brand-ink) 40%, transparent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition:
    color 0.2s ease,
    text-decoration-color 0.2s ease;
}

.prose a:not(.heading-anchor, .figure__media, [data-footnote-ref], [data-footnote-backref]):hover {
  color: var(--text);
  text-decoration-color: currentColor;
}

.prose a.ext::after,
.spec a.ext::after {
  content: '↗';
  margin-left: 0.12em;
  font-size: 0.82em;
}

.prose strong {
  color: var(--text);
  font-weight: 700;
}

.prose :is(ul, ol) {
  padding-left: 1.4em;
}

.prose li + li,
.prose li > :is(ul, ol) {
  margin-top: 0.45em;
}

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

.prose ol > li::marker {
  color: var(--brand-ink);
  font-family: var(--font-sans);
  font-size: 0.9em;
  font-weight: 700;
}

.prose li > p + p {
  margin-top: 0.6em;
}

.prose .contains-task-list {
  padding-left: 0;
  list-style: none;
}

.prose .task-list-item input {
  margin: 0 0.5em 0 0;
  accent-color: var(--brand);
  vertical-align: -0.1em;
}

.prose blockquote {
  padding: 18px 22px;
  border-radius: 16px;
  background: var(--cream);
  box-shadow: inset 3px 0 0 var(--brand);
  color: var(--text-soft);
}

.prose blockquote > * + * {
  margin-top: 0.8em;
}

.prose hr {
  height: 1px;
  margin: 3em 0;
  border: 0;
  background: var(--line);
}

.prose :not(pre) > code {
  padding: 0.12em 0.4em;
  border-radius: 6px;
  background: var(--cream-2);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.86em;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

.prose kbd {
  padding: 0.1em 0.4em;
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  border-radius: 6px;
  background: var(--paper);
  font-family: var(--font-mono);
  font-size: 0.82em;
}

.prose img {
  border-radius: 14px;
}

.prose sup {
  font-size: 0.75em;
  line-height: 0;
}

/* footnote marks are pills that sit just above the line, not superscripts */
.prose sup:has(> [data-footnote-ref]) {
  font-size: 1em;
  vertical-align: baseline;
}

.prose--page {
  font-size: 17px;
}

/* code blocks */
.code {
  overflow: hidden;
  border-radius: 16px;
  background: #10142a;
  color: #e1e5f2;
  box-shadow: 0 30px 60px -44px rgba(14, 18, 32, 0.7);
}

.prose > .code {
  margin-top: 1.6em;
}

.prose > .code + * {
  margin-top: 1.6em;
}

.code__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 6px 10px 6px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  color: #8f95ab;
  font-family: var(--font-sans);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.code__bar::before {
  content: '';
  width: 9px;
  height: 9px;
  margin-right: 34px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
  box-shadow:
    14px 0 0 rgba(255, 255, 255, 0.18),
    28px 0 0 rgba(255, 255, 255, 0.18);
}

.code__copy {
  height: 30px;
  margin-left: auto;
  padding: 0 12px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  color: #c9cee0;
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  transition:
    background-color 0.2s ease,
    color 0.2s ease,
    border-color 0.2s ease;
}

.code__copy:hover {
  border-color: transparent;
  background: var(--lime);
  color: var(--ink);
}

.code pre {
  margin: 0;
  padding: 18px 20px 20px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.7;
  letter-spacing: 0;
  white-space: pre;
  word-break: normal;
  tab-size: 2;
}

.code code {
  padding: 0;
  background: none;
  color: inherit;
  font: inherit;
}

.hljs-comment,
.hljs-quote {
  color: #7d84a0;
}
.hljs-keyword,
.hljs-literal,
.hljs-selector-tag,
.hljs-doctag {
  color: var(--lime);
}
.hljs-title,
.hljs-built_in,
.hljs-section,
.hljs-name,
.hljs-selector-id,
.hljs-selector-class {
  color: #9db8ff;
}
.hljs-string,
.hljs-regexp,
.hljs-addition,
.hljs-symbol,
.hljs-template-tag {
  color: #f2c97d;
}
.hljs-number,
.hljs-bullet {
  color: #f7a582;
}
.hljs-type,
.hljs-title.class_ {
  color: #c4b5fd;
}
.hljs-attr,
.hljs-attribute,
.hljs-property,
.hljs-template-variable {
  color: #b8c4ff;
}
.hljs-meta {
  color: #8f95ab;
}
.hljs-deletion {
  color: #ff8a8a;
}
.hljs-emphasis {
  font-style: italic;
}
.hljs-strong {
  font-weight: 700;
}

/* tables */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--paper);
}

.prose > .table-wrap {
  margin-top: 1.6em;
}

.prose > .table-wrap + * {
  margin-top: 1.6em;
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14.5px;
  line-height: 1.6;
}

.prose th {
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  background: var(--cream);
  color: var(--text-faint);
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.prose th:not([align]) {
  text-align: left;
}

.prose td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.prose tr:last-child td {
  border-bottom: 0;
}

/* figures */
.prose > .figure {
  margin: 2.1em 0;
}

.figure__media {
  display: block;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--cream);
}

.figure__media[data-zoom] {
  cursor: zoom-in;
}

.figure__media img {
  width: 100%;
  border-radius: 0;
  transition: transform 0.8s var(--ease);
}

.figure__media:hover img {
  transform: scale(1.012);
}

.figure__caption {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-top: 12px;
  color: var(--text-soft);
  font-size: 14px;
  line-height: 1.6;
}

.figure__no {
  flex: none;
  color: var(--brand-ink);
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.09em;
}

/* footnotes */
.prose [data-footnote-ref] {
  display: inline-grid;
  place-items: center;
  min-width: 1.75em;
  height: 1.75em;
  margin-left: 0.15em;
  padding: 0 0.4em;
  border-radius: 999px;
  background: var(--cream-2);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 10.5px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0;
  vertical-align: 0.55em;
  transition: background-color 0.2s ease;
}

.prose [data-footnote-ref]:hover,
.prose [data-footnote-ref][aria-expanded='true'] {
  background: var(--lime);
}

.footnotes {
  margin-top: 3.4em;
  padding-top: 1.6em;
  border-top: 1px solid var(--line);
  color: var(--text-soft);
  font-size: 14.5px;
  line-height: 1.75;
}

.footnotes__label {
  margin-bottom: 14px;
  color: var(--text-faint);
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.footnotes ol {
  padding-left: 1.4em;
}

.footnotes li + li {
  margin-top: 0.5em;
}

.footnotes li::marker {
  color: var(--brand-ink);
  font-family: var(--font-sans);
  font-size: 0.9em;
  font-weight: 700;
}

.footnotes li:target {
  border-radius: 8px;
  background: color-mix(in srgb, var(--lime) 35%, transparent);
}

.footnotes [data-footnote-backref] {
  margin-left: 0.3em;
  color: var(--brand-ink);
}

.fn-pop {
  position: absolute;
  z-index: 70;
  width: max-content;
  max-width: min(360px, calc(100vw - 32px));
  padding: 14px 16px 15px;
  border-radius: 16px;
  background: var(--ink);
  color: var(--text-inv);
  box-shadow: 0 24px 50px -24px rgba(14, 18, 32, 0.6);
  font-family: var(--font-ko);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.65;
  letter-spacing: -0.01em;
  word-break: keep-all;
}

.fn-pop__no {
  display: block;
  margin-bottom: 6px;
  color: var(--lime);
  font-family: var(--font-sans);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.fn-pop p {
  margin: 0;
}

.fn-pop a {
  color: #9db8ff;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ── about ──────────────────────────────────────────────── */

.company {
  display: grid;
  grid-template-columns: minmax(0, 1.75fr) minmax(0, 1fr);
  align-items: start;
  gap: clamp(16px, 2.6vw, 36px);
  padding: clamp(24px, 4vh, 48px) var(--gutter) clamp(40px, 6vh, 64px);
  background: var(--cream);
}

.company-sheet {
  padding: clamp(28px, 4vw, 56px) clamp(20px, 4vw, 56px) clamp(12px, 2vw, 24px);
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--paper);
}

.company-side {
  position: sticky;
  top: calc(var(--header-h) + 12px);
  display: grid;
  gap: 16px;
}

.spec {
  margin-top: 2.4em;
  border-top: 1px solid var(--line);
}

.spec-row {
  display: grid;
  grid-template-columns: minmax(120px, 0.5fr) minmax(0, 2fr);
  gap: 8px 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.spec-row:last-child {
  border-bottom: 0;
}

.spec dt {
  padding-top: 0.4em;
  color: var(--text-faint);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.spec dd {
  font-size: 15.5px;
  font-weight: 500;
  line-height: 1.6;
}

.spec dd a {
  color: var(--brand-ink);
  text-decoration: underline 1px;
  text-underline-offset: 3px;
}

.spec dd a:hover {
  color: var(--text);
}

/* ── footer ─────────────────────────────────────────────── */

.site-footer {
  padding: 112px var(--gutter) var(--gutter);
  background: var(--cream);
}

.footer-panel {
  position: relative;
  padding: clamp(72px, 9vw, 120px) clamp(20px, 4vw, 56px) 22px;
  border-radius: 36px;
  background: var(--ink);
  color: var(--text-inv);
}

.footer-tab {
  position: absolute;
  top: -54px;
  left: 50%;
  display: grid;
  place-items: center;
  width: 168px;
  height: 56px;
  padding-top: 8px;
  border-radius: 26px 26px 0 0;
  background: var(--ink);
  transform: translateX(-50%);
}

.footer-tab::before,
.footer-tab::after {
  content: '';
  position: absolute;
  bottom: 2px;
  width: 26px;
  height: 26px;
}

.footer-tab::before {
  right: 100%;
  background: radial-gradient(circle at 0 0, transparent 25.5px, var(--ink) 26px);
}

.footer-tab::after {
  left: 100%;
  background: radial-gradient(circle at 100% 0, transparent 25.5px, var(--ink) 26px);
}

.footer-tab-mark {
  color: var(--brand);
  transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.footer-tab:hover .footer-tab-mark {
  transform: rotate(-8deg) scale(1.06);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2.3fr) minmax(0, 1fr);
  align-items: center;
  gap: 32px;
}

.footer-col .eyebrow {
  margin-bottom: 14px;
  color: var(--text-inv-soft);
}

.footer-col--end {
  text-align: right;
}

.footer-links {
  display: grid;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-col--end .footer-links {
  justify-items: end;
}

.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: clamp(20px, 1.8vw, 30px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  transition: color 0.25s;
}

.footer-links a:hover {
  color: var(--lime);
}

.footer-links svg {
  flex-shrink: 0;
}

.footer-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.footer-statement {
  font-size: clamp(44px, 6vw, 104px);
}

.footer-ko {
  margin: 22px 0 28px;
  color: var(--text-inv-soft);
  font-size: 15px;
}

.marquee {
  overflow: hidden;
  white-space: nowrap;
}

.marquee-track {
  display: flex;
  width: max-content;
  animation: marquee var(--loop, 40s) linear infinite;
}

.marquee-row {
  display: flex;
  flex-shrink: 0;
}

.marquee-item {
  flex-shrink: 0;
}

@keyframes marquee {
  to {
    transform: translateX(-50%);
  }
}

.footer-marquee {
  margin: clamp(52px, 7vw, 96px) calc(-1 * clamp(20px, 4vw, 56px)) 0;
  padding: 18px 0;
  border-top: 1px solid var(--line-inv);
  border-bottom: 1px solid var(--line-inv);
}

.footer-marquee .marquee-item {
  display: inline-flex;
  align-items: center;
  font-size: clamp(22px, 2.4vw, 38px);
  font-weight: 800;
  line-height: 1;
  text-transform: uppercase;
}

.footer-marquee .marquee-item::after {
  content: '';
  width: 0.2em;
  height: 0.2em;
  margin: 0 0.7em;
  border-radius: 50%;
  background: var(--lime);
}

.footer-marquee .serif {
  color: var(--lime);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px 20px;
  margin-top: 26px;
  padding-top: 18px;
  color: var(--text-inv-soft);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.footer-bottom-links {
  display: flex;
  gap: 18px;
}

.footer-bottom a:hover {
  color: var(--lime);
}

/* ── overlays ───────────────────────────────────────────── */

.lightbox {
  width: 100vw;
  max-width: none;
  height: 100vh;
  height: 100dvh;
  max-height: none;
  margin: 0;
  padding: 0;
  border: 0;
  background: rgba(14, 18, 32, 0.95);
  color: var(--text-inv);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.lightbox::backdrop {
  background: transparent;
}

.lightbox[open] {
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
}

.lightbox__stage {
  display: grid;
  grid-template: minmax(0, 1fr) / minmax(0, 1fr);
  place-items: center;
  min-height: 0;
  padding: 24px var(--gutter);
  overflow: hidden;
  cursor: zoom-out;
}

.lightbox__img {
  max-width: 100%;
  max-height: 100%;
  border-radius: 12px;
  object-fit: contain;
}

.lightbox__bar {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--ink);
  padding: 14px var(--gutter) calc(14px + env(safe-area-inset-bottom));
  border-top: 1px solid var(--line-inv);
}

.lightbox__no {
  flex: none;
  color: var(--lime);
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.09em;
}

.lightbox__caption {
  flex: 1;
  min-width: 0;
  color: var(--text-inv-soft);
  font-family: var(--font-ko);
  font-size: 14px;
  line-height: 1.5;
}

.lightbox__close {
  height: 38px;
  padding: 0 16px;
  border-radius: 999px;
  background: var(--lime);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.toast {
  position: fixed;
  bottom: calc(24px + env(safe-area-inset-bottom));
  left: 50%;
  z-index: 80;
  padding: 12px 18px;
  border-radius: 999px;
  background: var(--ink);
  color: var(--text-inv);
  font-family: var(--font-ko);
  font-size: 13.5px;
  font-weight: 600;
  box-shadow: 0 20px 40px -20px rgba(14, 18, 32, 0.6);
  transform: translateX(-50%);
  animation: fade-up 0.4s var(--ease-out);
}

/* ── reveal on scroll (only for things that start below the fold) ── */

html.reveal [data-reveal]:not([data-in]) {
  opacity: 0;
  transform: translateY(28px);
}

html.reveal [data-reveal][data-in] {
  transition:
    opacity 0.9s var(--ease-out),
    transform 1.1s var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
}

/* ── responsive ─────────────────────────────────────────── */

@media (max-width: 1100px) {
  .brand-tag {
    display: none;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    grid-template-areas:
      'center center'
      'left right';
    gap: 48px 24px;
  }

  .footer-center {
    grid-area: center;
  }

  .footer-grid > .footer-col:first-child {
    grid-area: left;
  }

  .footer-col--end {
    grid-area: right;
  }
}

@media (max-width: 1080px) {
  .post-layout {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas:
      'toc'
      'sheet'
      'end'
      'side';
    max-width: calc(var(--measure) + 160px + 2 * var(--gutter));
  }

  .post-side {
    display: none;
  }

  .post-layout--plain .post-side {
    position: static;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  }

  .toc-inline {
    grid-area: toc;
    display: block;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: var(--paper);
  }

  .toc-inline summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 16px 20px;
    cursor: pointer;
    list-style: none;
  }

  .toc-inline summary::-webkit-details-marker {
    display: none;
  }

  .toc-inline summary::after {
    content: '';
    width: 8px;
    height: 8px;
    margin-left: 4px;
    border-right: 1.6px solid currentColor;
    border-bottom: 1.6px solid currentColor;
    transform: translateY(-2px) rotate(45deg);
    transition: transform 0.3s var(--ease);
  }

  .toc-inline[open] summary::after {
    transform: translateY(2px) rotate(-135deg);
  }

  .toc-inline summary .eyebrow {
    margin-right: auto;
    color: var(--text-faint);
  }

  .toc-count {
    color: var(--brand-ink);
    font-size: 12px;
    font-weight: 700;
  }

  .toc-inline .toc-list {
    padding: 0 20px 10px;
  }
}

@media (max-width: 900px) {
  .company,
  .promo {
    grid-template-columns: minmax(0, 1fr);
  }

  .company-side {
    position: static;
  }

  .promo-art {
    height: clamp(340px, 86vw, 560px);
  }

  .promo-card {
    top: 20%;
    left: 2%;
    width: min(84%, 470px);
    font-size: clamp(8.5px, 2.1vw, 14px);
  }
}

@media (max-height: 520px) and (min-width: 760px) {
  .menu-tiles {
    display: none;
  }

  .menu-nav {
    grid-column: 1 / -1;
  }
}

@media (max-width: 759px) {
  :root {
    --header-h: 72px;
  }

  .brand-name {
    font-size: 1.12rem;
  }

  .header-cta {
    width: 44px;
    height: 44px;
    padding: 0;
  }

  .header-cta span {
    display: none;
  }

  .menu-btn {
    width: 44px;
    height: 44px;
    border-radius: 12px;
  }

  .btn {
    height: 48px;
  }

  .btn--sm {
    height: 40px;
  }

  .menu-inner {
    grid-template-columns: minmax(0, 1fr);
    padding-top: calc(var(--header-h) + 28px);
  }

  .menu-tiles {
    display: none;
  }

  .menu-nav {
    align-items: flex-start;
    text-align: left;
  }

  .menu-links a {
    font-size: clamp(46px, 14vw, 72px);
  }

  .menu-foot {
    grid-template-columns: auto minmax(0, 1fr);
    justify-content: start;
  }

  .menu-badge {
    width: 72px;
  }

  .menu-small {
    justify-content: flex-start;
  }

  .page-hero {
    min-height: clamp(480px, 74svh, 640px);
  }

  .page-hero--home {
    min-height: clamp(500px, 82svh, 680px);
  }

  .page-hero-title {
    font-size: clamp(46px, 15vw, 110px);
  }

  .notes-count {
    margin-left: 0;
  }

  .card-body {
    padding: 18px 18px 20px;
  }

  .post-hero {
    padding-top: calc(var(--header-h) + 40px);
  }

  .post-title {
    font-size: clamp(30px, 8.4vw, 44px);
  }

  .post-title-sub {
    font-size: 0.62em;
  }

  .post-facts li {
    padding: 6px 11px;
    font-size: 12px;
  }

  .post-sheet {
    padding: 26px 18px 24px;
    border-radius: 22px;
  }

  .prose {
    font-size: 16.5px;
    line-height: 1.84;
  }

  .code pre {
    padding: 16px;
    font-size: 12.5px;
  }

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

  .nav-card--older {
    grid-column: auto;
  }

  .company-sheet {
    border-radius: 22px;
  }

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

  .site-footer {
    padding-top: 96px;
  }

  .footer-panel {
    border-radius: 26px;
  }

  .footer-statement {
    font-size: clamp(38px, 12vw, 64px);
  }

  .footer-bottom {
    flex-direction: column;
  }

  .promo {
    padding-top: clamp(72px, 12vh, 110px);
  }

  .promo-art {
    height: clamp(380px, 112vw, 480px);
  }

  .promo-card {
    top: 34%;
    width: 92%;
  }

  .promo-chips span {
    padding: 9px 15px;
    font-size: 14px;
  }
}

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

  html.js .page-hero-inner > *,
  html.js .post-hero-inner > * {
    opacity: 1;
    animation: none;
    transform: none;
  }

  html.reveal [data-reveal],
  html.reveal [data-reveal]:not([data-in]) {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .marquee-track,
  .badge-ring,
  .v-map-pulse {
    animation: none;
  }

  .menu,
  .menu-tile,
  .menu-links a,
  .menu-foot,
  .site-header,
  .card-inner,
  .nav-card {
    transition: none !important;
  }
}

@page {
  margin: 18mm 16mm;
}

@media print {
  .skip-link,
  .site-header,
  .menu,
  .site-footer,
  .post-side,
  .post-nav,
  .toc-inline,
  .read-progress,
  .contour-field,
  .post-actions,
  .heading-anchor,
  .code__copy {
    display: none !important;
  }

  body,
  .post-hero,
  .post-sheet {
    background: #fff;
  }

  .post-hero {
    padding: 0 0 24px;
  }

  .post-layout {
    display: block;
    padding: 0;
  }

  .post-sheet {
    padding: 0;
    border: 0;
  }

  html.js .page-hero-inner > *,
  html.js .post-hero-inner > *,
  html.reveal [data-reveal] {
    opacity: 1 !important;
    animation: none !important;
    transform: none !important;
  }

  .code,
  .figure,
  .table-wrap,
  .prose blockquote {
    break-inside: avoid;
  }

  .prose a.ext::after {
    content: ' (' attr(href) ')';
    font-size: 0.8em;
  }
}