@charset "UTF-8";

/* ---------- tokens ---------- */
:root {
  --paper: #F3EEE3;
  --paper-2: #EAE2D1;
  --paper-3: #FBF8F1;
  --ink: #1F1B16;
  --ink-2: #4A433A;
  --muted: #8A8070;
  --rule: #D6CCB8;
  --cinnabar: #B23A2E;
  --cinnabar-ink: #F6EFE2;
  --tint: rgba(178, 58, 46, 0.07);
  --film: #15120F;
  --film-ink: #E9E1D0;
  --film-mark: #E8913A;
  --sprocket: #F3EEE3;
  --texture-opacity: 0.45;
  --texture-blend: multiply;

  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Songti SC", "STSong", "Noto Serif SC", "Source Han Serif SC", "Noto Serif CJK SC", serif;
  --mono: "SF Mono", ui-monospace, Menlo, Consolas, monospace;
  --wrap: 1120px;
  --ease: cubic-bezier(.2, .7, .2, 1);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #16130F;
    --paper-2: #211C16;
    --paper-3: #1C1813;
    --ink: #ECE4D3;
    --ink-2: #C7BDA9;
    --muted: #8E8574;
    --rule: #3A332B;
    --cinnabar: #D0563F;
    --cinnabar-ink: #1A1510;
    --tint: rgba(208, 86, 63, 0.09);
    --film: #0B0907;
    --sprocket: #3E372E;
    --texture-opacity: 0.25;
    --texture-blend: screen;
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --paper: #16130F;
  --paper-2: #211C16;
  --paper-3: #1C1813;
  --ink: #ECE4D3;
  --ink-2: #C7BDA9;
  --muted: #8E8574;
  --rule: #3A332B;
  --cinnabar: #D0563F;
  --cinnabar-ink: #1A1510;
  --tint: rgba(208, 86, 63, 0.09);
  --film: #0B0907;
  --sprocket: #3E372E;
  --texture-opacity: 0.25;
  --texture-blend: screen;
  color-scheme: dark;
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  transition: background-color 1.1s var(--ease), color .5s var(--ease);
}

:root { --bg: var(--paper); --tint-mix: 10%; }
:root[data-tint] { --bg: color-mix(in srgb, var(--tint-c) var(--tint-mix), var(--paper)); }

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
:focus-visible { outline: 2px solid var(--cinnabar); outline-offset: 3px; }
::selection { background: var(--cinnabar); color: var(--cinnabar-ink); }

.paper {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: var(--texture-opacity);
  mix-blend-mode: var(--texture-blend);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .45 0 0 0 0 .38 0 0 0 0 .28 0 0 0 .35 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- seal ---------- */
.seal {
  display: inline-grid;
  place-items: center;
  background: var(--cinnabar);
  color: var(--cinnabar-ink);
  font-weight: 700;
  line-height: 1.05;
  text-align: center;
  border-radius: 4px;
  box-shadow: inset 0 0 0 2px var(--cinnabar), inset 0 0 0 3.5px var(--cinnabar-ink);
  user-select: none;
}
.seal--sm { width: 34px; height: 34px; font-size: 19px; letter-spacing: 0; }
/* ---------- masthead ---------- */
.masthead {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 16px max(32px, calc((100vw - var(--wrap)) / 2));
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, background-color 1.1s var(--ease);
}
.masthead.is-scrolled { border-bottom-color: var(--rule); }

/* 3. reading progress */
.masthead__vol {
  font-size: 13px;
  letter-spacing: .24em;
  color: var(--muted);
  white-space: nowrap;
  opacity: 0;
  translate: 0 4px;
  transition: opacity .4s var(--ease), translate .4s var(--ease);
}
.masthead__vol.is-on { opacity: 1; translate: 0 0; }
.masthead__vol b { color: var(--cinnabar); font-weight: 400; margin-right: .6em; }
.progress {
  position: absolute;
  left: 0; right: 0; bottom: -1px;
  height: 2px;
  background: var(--cinnabar);
  transform: scaleX(var(--p, 0));
  transform-origin: left;
  pointer-events: none;
}

.brand { display: flex; align-items: center; gap: 12px; }
.brand__name { font-size: 19px; letter-spacing: .06em; font-style: italic; }

.nav { display: flex; gap: 26px; margin-left: auto; font-size: 15px; letter-spacing: .12em; }
.nav a { position: relative; color: var(--ink-2); transition: color .2s; }
.nav a::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: -3px;
  height: 1px; background: var(--cinnabar);
  transform: scaleX(0); transform-origin: left;
  transition: transform .35s var(--ease);
}
.nav a:hover { color: var(--ink); }
.nav a:hover::after { transform: scaleX(1); }

.toggles { display: flex; gap: 8px; }
.toggle {
  width: 36px; height: 36px;
  border: 1px solid var(--rule);
  border-radius: 50%;
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--ink-2);
  transition: border-color .2s, color .2s, background-color .2s;
}
.toggle:hover { border-color: var(--cinnabar); color: var(--cinnabar); }

/* ---------- hero ---------- */
.hero {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 48px;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 120px 32px 150px;
  min-height: min(88vh, 860px);
  align-items: center;
}

.hero__date {
  position: absolute;
  top: 40px;
  left: 32px;
  font-size: 13px;
  letter-spacing: .3em;
  color: var(--muted);
}

.eyebrow {
  margin: 0 0 22px;
  font-size: 14px;
  letter-spacing: .32em;
  color: var(--cinnabar);
}

:lang(en) .eyebrow, :lang(en) .vol { letter-spacing: .16em; }

.hero__title {
  margin: 0;
  font-size: clamp(42px, 6.6vw, 84px);
  line-height: 1.12;
  font-weight: 600;
  letter-spacing: -.01em;
}
.hero__title em {
  font-style: normal;
  color: var(--cinnabar);
  position: relative;
  white-space: nowrap;
}
.hero__title em::after {
  content: "";
  position: absolute;
  left: -2%; right: -3%; bottom: -.02em;
  height: .2em;
  background: var(--cinnabar);
  opacity: .32;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 20' preserveAspectRatio='none'%3E%3Cpath d='M3 12C30 7 70 5 110 6s70 2 87 1c2 0 2 3 0 4-25 3-60 5-100 6S25 19 6 17c-4-1-6-4-3-5z'/%3E%3C/svg%3E") center / 100% 100% no-repeat;
          mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 20' preserveAspectRatio='none'%3E%3Cpath d='M3 12C30 7 70 5 110 6s70 2 87 1c2 0 2 3 0 4-25 3-60 5-100 6S25 19 6 17c-4-1-6-4-3-5z'/%3E%3C/svg%3E") center / 100% 100% no-repeat;
  clip-path: inset(0 100% 0 0);
  animation: brush .9s cubic-bezier(.65, 0, .35, 1) var(--brush-d, 1.2s) forwards;
}
.ink { display: inline-block; opacity: 0; animation: ink 1s cubic-bezier(.2, .7, .2, 1) var(--i) forwards; }
@keyframes ink {
  0%   { opacity: 0; filter: blur(14px); translate: 0 .12em; scale: 1.06; }
  60%  { opacity: 1; }
  100% { opacity: 1; filter: blur(0); translate: 0 0; scale: 1; }
}
@keyframes brush { to { clip-path: inset(0 0 0 0); } }

.hero__lede {
  max-width: 36em;
  margin: 34px 0 0;
  font-size: 18px;
  color: var(--ink-2);
}

.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 40px; }

.btn {
  display: inline-flex;
  align-items: center;
  height: 48px;
  padding: 0 26px;
  font-size: 15px;
  letter-spacing: .14em;
  border-radius: 2px;
  transition: transform .25s var(--ease), background-color .25s, color .25s, border-color .25s;
}
.btn:hover { transform: translateY(-2px); }
.btn--ink { background: var(--ink); color: var(--paper); }
.btn--ink:hover { background: var(--cinnabar); color: var(--cinnabar-ink); }
.btn--line { border: 1px solid var(--ink); }
.btn--line:hover { border-color: var(--cinnabar); color: var(--cinnabar); }

.hero__side {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  padding: 24px 0;
  border-left: 1px solid var(--rule);
  padding-left: 40px;
}
.vertical {
  margin: 0;
  writing-mode: vertical-rl;
  font-size: 26px;
  letter-spacing: .42em;
  color: var(--ink-2);
}
:lang(en) .vertical { font-size: 18px; letter-spacing: .28em; font-style: italic; }

/* wooden fish */
.fish {
  position: absolute;
  right: 32px;
  bottom: 36px;
  display: flex;
  align-items: center;
  gap: 14px;
}
.fish__btn {
  position: relative;
  width: 64px; height: 64px;
  border-radius: 15px;
  overflow: visible;
  transition: transform .12s ease-out;
  -webkit-tap-highlight-color: transparent;
}
.fish__btn img {
  width: 64px; height: 64px;
  border-radius: 15px;
  box-shadow: 0 10px 24px -12px rgba(0,0,0,.5);
}
.fish__btn.is-hit { transform: scale(.9) rotate(-3deg); }
.fish__hint { margin: 0; font-size: 13px; letter-spacing: .14em; color: var(--muted); }
.fish__hint b { font-family: var(--mono); font-weight: 500; color: var(--cinnabar); letter-spacing: 0; }

.merit {
  position: absolute;
  left: 50%;
  top: -6px;
  white-space: nowrap;
  font-size: 14px;
  letter-spacing: .1em;
  color: var(--cinnabar);
  pointer-events: none;
  animation: merit 1s var(--ease) forwards;
}
@keyframes merit {
  from { opacity: 0; transform: translate(-50%, 6px); }
  20%  { opacity: 1; }
  to   { opacity: 0; transform: translate(-50%, -46px); }
}

/* ---------- ledger ---------- */
.ledger {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  max-width: var(--wrap);
  margin: 0 auto;
  border-top: 3px double var(--rule);
  border-bottom: 3px double var(--rule);
}
.ledger__item {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 10px;
  padding: 30px 12px;
}
.ledger__item + .ledger__item { border-left: 1px solid var(--rule); }
.ledger__item b { font-size: 46px; font-weight: 500; line-height: 1; font-variant-numeric: lining-nums; }
.ledger__item span { font-size: 15px; letter-spacing: .14em; color: var(--ink-2); }

/* ---------- sections ---------- */
.section { max-width: var(--wrap); margin: 0 auto; padding: 140px 32px 0; }

.section__head { margin-bottom: 56px; }
.section__head h2 {
  margin: 0;
  font-size: clamp(34px, 4.6vw, 54px);
  font-weight: 600;
  line-height: 1.2;
}
.section__head h3 { margin: 0; font-size: 26px; font-weight: 600; }
.section__head--minor { margin: 110px 0 32px; }
.vol {
  margin: 0 0 12px;
  font-size: 14px;
  letter-spacing: .4em;
  color: var(--cinnabar);
}
.vol::before { content: "\2014\2014\00a0"; letter-spacing: 0; }
.section__sub { margin: 14px 0 0; color: var(--muted); letter-spacing: .04em; }

/* ---------- works: spreads ---------- */
.section--works { max-width: 1480px; }
.section--works .section__head { max-width: var(--wrap); }

.spread {
  --accent: var(--cinnabar);
  position: relative;
  display: grid;
  grid-template-columns: minmax(300px, 4fr) 8fr;
  gap: 64px;
  align-items: center;
  padding: 72px 0;
  border-top: 1px solid var(--rule);
}
.spread:first-child { border-top-color: var(--ink); }
.spread--flip { grid-template-columns: 8fr minmax(300px, 4fr); }
.spread--flip .spread__text { order: 2; }

.spread__idx {
  display: block;
  font-size: 15px;
  letter-spacing: .3em;
  color: var(--accent);
  margin-bottom: 26px;
}
.spread__idx::after {
  content: "";
  display: inline-block;
  width: 48px;
  height: 1px;
  margin-left: 14px;
  vertical-align: middle;
  background: var(--accent);
}

.spread__title { display: flex; align-items: center; gap: 20px; }
.spread__icon {
  width: 88px; height: 88px;
  border-radius: 20px;
  flex: none;
  box-shadow: 0 0 0 .5px rgba(0,0,0,.12), 0 14px 30px -16px rgba(0,0,0,.55);
}
.spread h3 { margin: 0; font-size: clamp(34px, 3.6vw, 48px); line-height: 1.1; font-weight: 600; }
.spread__alt { margin: 6px 0 0; font-size: 17px; font-style: italic; color: var(--muted); }
.spread__ver { margin-left: 6px; font-family: var(--mono); font-style: normal; font-size: 12px; color: var(--ink-2); }
.spread__pitch { margin: 28px 0 18px; font-size: 19px; line-height: 1.8; color: var(--ink-2); }
.spread__links { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.spread__links .btn--ink { background: var(--accent); color: #fff; }
.spread__links .btn--ink:hover { background: var(--ink); color: var(--paper); }
.spread__soon {
  display: inline-flex;
  align-items: center;
  height: 48px;
  padding: 0 22px;
  border: 1px dashed var(--accent);
  color: var(--accent);
  font-size: 15px;
  letter-spacing: .2em;
}

.tags { display: flex; flex-wrap: wrap; gap: 6px; margin: 0; padding: 0; list-style: none; }
.tags li {
  font-size: 12.5px;
  letter-spacing: .08em;
  padding: 2px 10px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  color: var(--muted);
}

.spread__stage {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: center;
  padding: 64px 48px;
  border-radius: 6px;
  background:
    radial-gradient(120% 80% at 50% 0%, color-mix(in srgb, var(--accent) 22%, transparent), transparent 70%),
    color-mix(in srgb, var(--accent) 9%, var(--paper));
  overflow: hidden;
}

.phone {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 1242 / 2688;
  padding: 0;
  border-radius: 13% / 6%;
  background: #0E0D0C;
  box-shadow:
    0 0 0 4px #0E0D0C,
    0 0 0 5px rgba(255,255,255,.12),
    0 30px 50px -24px rgba(0,0,0,.55);
  overflow: hidden;
  cursor: zoom-in;
  rotate: var(--tilt, 0 1 0 0deg);
  transition: transform .5s var(--ease), box-shadow .5s var(--ease), rotate .6s var(--ease);
}
.spread__stage.is-tilting .phone { transition: transform .5s var(--ease), box-shadow .5s var(--ease), rotate .12s linear; }
.phone::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: radial-gradient(60% 40% at var(--gx, 50%) var(--gy, 0%), rgba(255, 255, 255, .28), transparent 70%);
  opacity: 0;
  transition: opacity .4s var(--ease);
  pointer-events: none;
}
.spread__stage.is-tilting .phone::before { opacity: 1; }
.phone img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.phone:nth-child(2) { transform: translateY(-26px); }
.phone:hover { transform: translateY(-10px) scale(1.03); z-index: 2; }
.phone:nth-child(2):hover { transform: translateY(-36px) scale(1.03); }

.spread__stage { perspective: 1400px; }
.phone { --d: 0s; }
.phone:nth-child(2) { --d: .14s; }
.phone:nth-child(3) { --d: .28s; }
.js .spread:not(.is-staged) .phone { opacity: 0; }
.spread.is-staged .phone { animation: settle 1.25s cubic-bezier(.16, 1, .3, 1) var(--d) backwards; }

.phone::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  background: linear-gradient(105deg, transparent 38%, rgba(255, 255, 255, .38) 50%, transparent 62%);
  translate: -130% 0;
  pointer-events: none;
}
.spread.is-staged .phone::after { animation: sheen 1.1s cubic-bezier(.4, 0, .2, 1) calc(var(--d) + .75s) both; }

@keyframes settle {
  0%   { opacity: 0; translate: 0 90px; rotate: 1 0 0 24deg; scale: .92; filter: blur(4px); }
  45%  { opacity: 1; filter: blur(0); }
  100% { opacity: 1; translate: 0 0; rotate: 1 0 0 0deg; scale: 1; filter: none; }
}
@keyframes sheen { to { translate: 130% 0; } }

/* ---------- lightbox ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  padding: 4vh 4vw;
  background: rgba(12, 10, 8, .86);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  cursor: zoom-out;
  transition: background-color .45s var(--ease), backdrop-filter .45s var(--ease);
}
.lightbox.is-dim { background: rgba(12, 10, 8, 0); backdrop-filter: blur(0); -webkit-backdrop-filter: blur(0); }
.lightbox.is-dim .lightbox__close,
.lightbox.is-dim .lightbox__nav,
.lightbox.is-dim .lightbox__count { opacity: 0; }
.lightbox[hidden] { display: none; }
.lightbox__img {
  max-height: 92vh;
  width: auto;
  border-radius: 28px;
  box-shadow: 0 40px 80px -30px rgba(0,0,0,.8);
  transform-origin: 0 0;
  will-change: transform;
}
.lightbox__close, .lightbox__nav, .lightbox__count { transition: opacity .3s; color: #EDE6D8; }
.lightbox__close {
  position: absolute;
  top: 18px; right: 24px;
  font-size: 34px;
  line-height: 1;
}
.lightbox__nav {
  position: absolute;
  top: 50%;
  width: 56px; height: 56px;
  margin-top: -28px;
  border: 1px solid rgba(237, 230, 216, .3);
  border-radius: 50%;
  font-size: 30px;
  line-height: 1;
  transition: opacity .3s, background-color .25s, border-color .25s;
}
.lightbox__nav:hover { background: rgba(237, 230, 216, .12); border-color: rgba(237, 230, 216, .7); }
.lightbox__nav--prev { left: max(24px, calc(50% - 360px)); }
.lightbox__nav--next { right: max(24px, calc(50% - 360px)); }
.lightbox__count {
  position: absolute;
  bottom: 18px; left: 0; right: 0;
  margin: 0;
  text-align: center;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .2em;
}

/* ---------- theme ink transition ---------- */
::view-transition-old(root),
::view-transition-new(root) { animation: none; mix-blend-mode: normal; }
::view-transition-new(root) { z-index: 2; }
.no-trans, .no-trans * { transition: none !important; }

/* ---------- magnetic ---------- */
.btn, .toggle { translate: var(--mx, 0) var(--my, 0); transition-property: transform, background-color, color, border-color, translate; }
.is-magnet { transition-duration: .25s, .25s, .25s, .25s, .1s; }

/* ---------- film strip ---------- */
.section--strip { max-width: none; padding-left: 0; padding-right: 0; }
.section--strip .section__head { max-width: var(--wrap); margin-left: auto; margin-right: auto; padding: 0 32px; }

.strip {
  overflow: hidden;
  background: var(--film);
  cursor: default;
}

.strip__track {
  --hole: 14px;
  display: flex;
  width: max-content;
  padding: 34px 0;
  background:
    radial-gradient(circle at 50% 50%, var(--sprocket) 42%, transparent 44%) 0 9px / 26px var(--hole) repeat-x,
    radial-gradient(circle at 50% 50%, var(--sprocket) 42%, transparent 44%) 0 calc(100% - 9px) / 26px var(--hole) repeat-x;
  animation: roll 56s linear infinite;
  animation-play-state: paused;
  will-change: transform;
}
.strip.is-playing .strip__track { animation-play-state: running; }
.strip.is-playing:hover .strip__track,
.strip.is-held .strip__track { animation-play-state: paused; }
@keyframes roll { to { transform: translateX(-50%); } }

/* frame width + margin is a multiple of the 26px sprocket pitch so the loop seam is invisible */
.frame {
  flex: 0 0 270px;
  margin-right: 16px;
  padding: 24px 22px 22px;
  min-height: 230px;
  display: flex;
  flex-direction: column;
  background: linear-gradient(160deg, #2A241D, #1B1713);
  color: var(--film-ink);
  border-radius: 3px;
  position: relative;
}
.frame__no { font-family: var(--mono); font-size: 12px; color: var(--film-mark); letter-spacing: .12em; }
.frame__no::before { content: "\25B8\00a0"; }
.frame h4 { margin: auto 0 6px; font-size: 24px; font-weight: 600; }
.frame p { margin: 0; font-size: 14.5px; line-height: 1.65; color: #B9AF9C; }

.strip__hint { max-width: var(--wrap); margin: 14px auto 0; padding: 0 32px; font-size: 13px; letter-spacing: .14em; color: var(--muted); }

/* ---------- rules ---------- */
.rules {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 56px 48px;
}
.rule { border-top: 1px solid var(--ink); padding-top: 22px; }
.rule__num {
  display: block;
  font-size: 40px;
  line-height: 1;
  color: var(--cinnabar);
  margin-bottom: 18px;
}
.rule h4 { margin: 0 0 10px; font-size: 21px; font-weight: 600; }
.rule p { margin: 0; color: var(--ink-2); font-size: 16px; }

/* ---------- letter ---------- */
.section--letter { padding-bottom: 40px; }

.envelope { display: grid; place-items: center; min-height: 420px; }

.envelope__closed {
  position: relative;
  width: min(560px, 100%);
  aspect-ratio: 1.62;
  background: var(--paper-2);
  border-radius: 4px;
  box-shadow: 0 30px 60px -36px rgba(0,0,0,.55), inset 0 0 0 1px var(--rule);
  overflow: hidden;
  transition: transform .5s var(--ease), box-shadow .5s var(--ease);
}
.envelope__closed:hover { transform: translateY(-6px) rotate(-.6deg); }
.envelope__flap {
  position: absolute;
  inset: 0 0 auto 0;
  height: 58%;
  background: color-mix(in srgb, var(--paper-2) 80%, var(--ink) 6%);
  clip-path: polygon(0 0, 100% 0, 50% 100%);
  border-bottom: 1px solid var(--rule);
  transform-origin: top;
  transition: transform .6s var(--ease);
}
.envelope__to {
  position: absolute;
  left: 34px;
  bottom: 30px;
  font-size: 17px;
  letter-spacing: .2em;
  color: var(--ink-2);
}
.envelope__hint {
  position: absolute;
  right: 30px;
  bottom: 32px;
  font-size: 13px;
  letter-spacing: .2em;
  color: var(--muted);
}
.wax {
  position: absolute;
  left: 50%;
  top: 58%;
  display: grid;
  place-items: center;
  width: 66px; height: 66px;
  margin: -33px 0 0 -33px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #D0604B, var(--cinnabar) 55%, #7E2219);
  color: #F6E6D4;
  font-size: 26px;
  font-weight: 700;
  box-shadow: 0 4px 10px rgba(0,0,0,.3), inset 0 0 0 5px rgba(0,0,0,.12);
  transition: transform .5s var(--ease);
}
.envelope__closed:hover .wax { transform: rotate(-12deg) scale(1.05); }

.envelope.is-opening .envelope__flap { transform: rotateX(180deg); }
.envelope.is-opening .wax { transform: scale(0); }
.envelope.is-opening .envelope__closed { transform: translateY(30px); opacity: 0; transition-delay: .25s; transition-duration: .5s; }

.letter {
  width: min(640px, 100%);
  padding: 56px 60px 48px;
  background:
    repeating-linear-gradient(to bottom, transparent 0 calc(2.1em - 1px), color-mix(in srgb, var(--cinnabar) 22%, transparent) calc(2.1em - 1px) 2.1em),
    var(--paper-3);
  background-position: 0 56px;
  line-height: 2.1;
  font-size: 18px;
  border-radius: 3px;
  box-shadow: 0 30px 60px -36px rgba(0,0,0,.5), inset 0 0 0 1px var(--rule);
  animation: unfold .8s var(--ease) both;
}
.letter p { margin: 0; }
.letter p + p { text-indent: 2em; }
.letter p:nth-child(2) { text-indent: 2em; }
:lang(en) .letter p + p { text-indent: 0; }
.letter__sign {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 14px;
  margin-top: 2.1em !important;
  text-indent: 0 !important;
  color: var(--ink-2);
}
@keyframes unfold {
  from { opacity: 0; transform: translateY(40px) scaleY(.6); transform-origin: top; }
  to { opacity: 1; transform: none; }
}

/* ---------- colophon ---------- */
.colophon { padding: 140px 32px 80px; display: grid; place-items: center; }
.colophon__box {
  width: min(460px, 100%);
  padding: 34px 40px 28px;
  border: 1px solid var(--ink);
  outline: 1px solid var(--ink);
  outline-offset: 5px;
  text-align: center;
}
.colophon__title { margin: 0 0 22px; font-size: 18px; letter-spacing: .5em; font-weight: 600; }
.colophon dl { margin: 0; display: grid; gap: 6px; text-align: left; }
.colophon dl div { display: grid; grid-template-columns: 4.5em 1fr; gap: 12px; padding: 4px 0; border-bottom: 1px dotted var(--rule); font-size: 15px; }
.colophon dt { color: var(--muted); letter-spacing: .3em; }
.colophon dd { margin: 0; }
.colophon dd a { color: var(--cinnabar); }
.colophon__note { margin: 22px 0 4px; font-size: 14px; color: var(--ink-2); letter-spacing: .1em; }
.colophon__copy { margin: 0; font-size: 12px; color: var(--muted); letter-spacing: .14em; }

/* ---------- reveal ---------- */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.js .reveal.is-in { opacity: 1; transform: none; }

/* ---------- responsive ---------- */
@media (max-width: 960px) {
  .rules { grid-template-columns: repeat(2, 1fr); }
  .spread, .spread--flip { grid-template-columns: 1fr; gap: 36px; padding: 56px 0; }
  .spread--flip .spread__text { order: 0; }
}

@media (max-width: 760px) {
  body { font-size: 16px; }
  .masthead { padding: 12px 20px; gap: 14px; }
  .brand__name { display: none; }
  .masthead__vol { display: none; }
  .nav { gap: 16px; font-size: 14px; letter-spacing: .06em; }
  .toggle { width: 32px; height: 32px; }

  .hero { grid-template-columns: 1fr; padding: 90px 20px 150px; min-height: 0; }
  .hero__date { left: 20px; top: 28px; }
  .hero__side { display: none; }
  .fish { right: 20px; bottom: 40px; }

  .ledger { grid-template-columns: repeat(2, 1fr); margin: 0 20px; }
  .ledger__item:nth-child(3) { border-left: 0; }
  .ledger__item:nth-child(n+3) { border-top: 1px solid var(--rule); }
  .ledger__item b { font-size: 36px; }

  .section { padding: 100px 20px 0; }
  .section--strip { padding-left: 0; padding-right: 0; }
  .section--strip .section__head, .strip__hint { padding: 0 20px; }
  .frame { flex-basis: 218px; }
  .strip__track { animation-duration: 44s; }

  .rules { grid-template-columns: 1fr; gap: 40px; }

  .spread__icon { width: 64px; height: 64px; border-radius: 15px; }
  .spread__pitch { font-size: 17px; margin-top: 20px; }
  .spread__stage {
    display: flex;
    gap: 16px;
    margin: 0 -20px;
    padding: 40px 20px;
    border-radius: 0;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
  }
  .spread__stage::-webkit-scrollbar { display: none; }
  .phone { flex: 0 0 62vw; scroll-snap-align: center; }
  .phone:nth-child(2), .phone:nth-child(2):hover, .phone:hover { transform: none; }

  .letter { padding: 40px 26px 34px; font-size: 16.5px; background-position: 0 40px; }
  .envelope { min-height: 300px; }
  .colophon { padding: 100px 20px 60px; }
  .colophon__box { padding: 28px 22px 24px; }
}

@media (prefers-reduced-motion: reduce) {
  .ink { opacity: 1; filter: none; }
  .hero__title em::after { clip-path: none; }
  .js .spread .phone { opacity: 1 !important; }
  .phone::after { display: none; }
  .strip { overflow-x: auto; }
  .strip__track { animation: none; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; }
}