/* ════════════════════════════════════════════════
   A CUP OF ZEN — washi · sumi · vermilion
   ivory = stillness · black = story · red = action
   ════════════════════════════════════════════════ */

:root {
  --washi: #F3EFE4;
  --washi-warm: #ECE6D4;
  --paper: #FAF7EC;
  --taupe: #C9C0A9;
  --ink: #141210;
  --ink-soft: #46423A;
  --ink-mute: #6E6858;
  --red: #C40000;
  --red-bright: #D41414;

  --font-display: "Jost", "Futura", sans-serif;
  --font-body: "Zen Kaku Gothic New", "Hiragino Sans", sans-serif;
  --font-book: "EB Garamond", Georgia, serif;
  --font-kanji: "Shippori Mincho", "Hiragino Mincho ProN", serif;

  --ease-zen: cubic-bezier(0.32, 0.72, 0, 1);
  --pad: clamp(1.25rem, 5vw, 2.5rem);
  --maxw: 1140px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  background: var(--washi);
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.7;
  overflow-x: hidden;
  /* washi fiber: faint irregular mottling */
  background-image:
    radial-gradient(ellipse 80% 60% at 15% 8%, rgba(201,192,169,.16), transparent 60%),
    radial-gradient(ellipse 70% 50% at 90% 70%, rgba(201,192,169,.12), transparent 55%);
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }

::selection { background: var(--red); color: var(--washi); }

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  clip-path: inset(50%); overflow: hidden; white-space: nowrap;
}

/* ── film grain ─────────────────────────────── */
.grain {
  position: fixed; inset: 0; z-index: 80; pointer-events: none;
  opacity: .05; mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ── scroll reveal ──────────────────────────── */
.rv {
  opacity: 0;
  transform: translateY(28px);
  filter: blur(4px);
  transition:
    opacity .9s var(--ease-zen) var(--d, 0s),
    transform .9s var(--ease-zen) var(--d, 0s),
    filter .9s var(--ease-zen) var(--d, 0s);
}
.rv.in { opacity: 1; transform: none; filter: none; }

/* red hanko seals: stamp in with a thump */
.stamp {
  display: grid; place-items: center;
  font-family: var(--font-kanji); font-weight: 600;
  background: var(--red); color: var(--washi);
  transform: rotate(-3deg);
}
.rv.in .stamp, .stamp.in { animation: stampIn .5s var(--ease-zen) both; }
@keyframes stampIn {
  0% { opacity: 0; transform: scale(1.7) rotate(-10deg); }
  62% { opacity: 1; transform: scale(.94) rotate(-2deg); }
  100% { opacity: 1; transform: scale(1) rotate(-3deg); }
}

/* ── shared atoms ───────────────────────────── */
.label {
  font-family: var(--font-display);
  font-size: .68rem; font-weight: 500;
  letter-spacing: .38em; text-indent: .38em;
  color: var(--ink-mute);
  text-align: center;
}
.label::after {
  content: ""; display: block; width: 2.2rem; height: 1px;
  background: currentColor; opacity: .5;
  margin: .9rem auto 0;
}
.label--red { color: var(--red); }
.label--light { color: rgba(243,239,228,.55); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .7rem;
  font-family: var(--font-display); font-weight: 500;
  font-size: .78rem; letter-spacing: .22em; text-indent: .22em;
  padding: 1.05rem 1.7rem;
  border-radius: 2px;
  transition: transform .5s var(--ease-zen), background .5s var(--ease-zen),
              box-shadow .5s var(--ease-zen), color .5s var(--ease-zen);
}
.btn:active { transform: scale(.97); }
.btn--red {
  background: var(--red); color: var(--washi);
  box-shadow: 0 10px 30px -12px rgba(196,0,0,.55);
}
.btn--red:hover { background: var(--red-bright); transform: translateY(-2px); }
.btn--ghost {
  color: var(--ink);
  box-shadow: inset 0 0 0 1px rgba(20,18,16,.35);
}
.btn--ghost:hover { box-shadow: inset 0 0 0 1px var(--ink); }
.btn--big { width: 100%; max-width: 22rem; padding: 1.2rem 2rem; font-size: .82rem; }
.btn__arrow { transition: transform .5s var(--ease-zen); }
.btn:hover .btn__arrow { transform: translateX(5px); }

/* ════════════ NAV ════════════ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 90;
  display: flex; align-items: center; gap: 1rem;
  padding: .9rem var(--pad);
  padding-top: max(.9rem, env(safe-area-inset-top));
  transition: background .6s var(--ease-zen), box-shadow .6s var(--ease-zen),
              backdrop-filter .6s var(--ease-zen), padding .6s var(--ease-zen);
}
body.menu-open .nav { z-index: 96; }
.nav.scrolled {
  background: rgba(243, 239, 228, .82);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 rgba(20,18,16,.12);
  padding-top: max(.65rem, env(safe-area-inset-top)); padding-bottom: .65rem;
}
.nav__brand { display: flex; align-items: center; gap: .65rem; margin-right: auto; }
.nav__seal {
  width: 2rem; height: 2rem; display: grid; place-items: center;
  background: var(--red); color: var(--washi);
  font-family: var(--font-kanji); font-size: .82rem; font-weight: 600;
  line-height: 1; border-radius: 2px;
  writing-mode: vertical-rl;
  letter-spacing: -.1em;
}
.nav__wordmark {
  font-family: var(--font-display); font-weight: 600;
  font-size: .8rem; letter-spacing: .3em;
}
.nav__links { display: none; }
.nav__cta { display: none; }
.nav__burger {
  position: relative; z-index: 96;
  width: 2.6rem; height: 2.6rem;
  display: grid; place-items: center; gap: 0;
}
.nav__burger span {
  position: absolute; width: 1.35rem; height: 1.5px;
  background: var(--ink);
  transition: transform .55s var(--ease-zen), background .3s;
}
.nav__burger span:first-child { transform: translateY(-4px); }
.nav__burger span:last-child { transform: translateY(4px); }
body.menu-open .nav__burger span:first-child { transform: rotate(45deg); }
body.menu-open .nav__burger span:last-child { transform: rotate(-45deg); }

@media (min-width: 860px) {
  .nav__links { display: flex; gap: 2.4rem; margin-right: 2.2rem; }
  .nav__links a {
    font-family: var(--font-display); font-size: .72rem;
    font-weight: 500; letter-spacing: .24em;
    text-transform: uppercase;
    position: relative; padding: .3rem 0;
  }
  .nav__links a::after {
    content: ""; position: absolute; left: 0; bottom: 0;
    width: 100%; height: 1px; background: var(--red);
    transform: scaleX(0); transform-origin: right;
    transition: transform .5s var(--ease-zen);
  }
  .nav__links a:hover::after { transform: scaleX(1); transform-origin: left; }
  .nav__cta { display: inline-flex; padding: .75rem 1.3rem; font-size: .7rem; }
  .nav__burger { display: none; }
}

/* full-screen menu */
.menu {
  position: fixed; inset: 0; z-index: 92;
  display: flex; flex-direction: column; justify-content: center; align-items: center;
  gap: 0; padding: var(--pad);
  background: rgba(243, 239, 228, .93);
  -webkit-backdrop-filter: blur(24px); backdrop-filter: blur(24px);
  opacity: 0; visibility: hidden;
  transition: opacity .6s var(--ease-zen), visibility 0s .6s;
}
body.menu-open .menu { opacity: 1; visibility: visible; transition-delay: 0s; }
.menu__links { display: flex; flex-direction: column; align-items: center; gap: .4rem; }
.menu__links a {
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(1.7rem, 7vw, 2.6rem);
  letter-spacing: .14em; text-transform: uppercase;
  padding: .35rem .5rem;
}
.menu__links a:hover { color: var(--red); }
.menu__cta { margin-top: 2.2rem; }
.menu__foot {
  margin-top: 2.6rem; font-size: .78rem; letter-spacing: .08em;
  color: var(--ink-mute);
}
.menu__links a, .menu__cta, .menu__foot {
  opacity: 0; transform: translateY(26px);
  transition: opacity .7s var(--ease-zen), transform .7s var(--ease-zen);
}
body.menu-open .menu__links a,
body.menu-open .menu__cta,
body.menu-open .menu__foot {
  opacity: 1; transform: none;
  transition-delay: calc(.08s + var(--i) * .055s);
}

/* ════════════ 01 · HERO ════════════ */
.s-hero {
  position: relative;
  min-height: 100dvh;
  padding: calc(5.5rem + env(safe-area-inset-top)) var(--pad) 4.5rem;
  display: flex; flex-direction: column; align-items: center;
  text-align: center;
  max-width: var(--maxw); margin: 0 auto;
}
.s-hero__eyebrow {
  font-family: var(--font-display); font-size: .66rem; font-weight: 500;
  letter-spacing: .42em; text-indent: .42em; color: var(--ink-mute);
  margin-bottom: 1.6rem;
}
.s-hero__title {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(2.35rem, 9.4vw, 4.6rem);
  line-height: 1.06; letter-spacing: .045em;
  display: flex; flex-direction: column;
}
.s-hero__title-red { color: var(--red); }
.s-hero__rule {
  width: 5.5rem; height: 3px; background: var(--ink);
  margin: 1.7rem 0 1.5rem;
  clip-path: polygon(0 20%, 100% 0, 100% 80%, 0 100%); /* imperfect ink bar */
}
.s-hero__sub {
  max-width: 30rem; font-weight: 300; font-size: .98rem;
  color: var(--ink-soft);
}
.s-hero__book {
  position: relative; margin: 2.6rem 0 2.2rem;
  width: min(78vw, 24rem);
}
.s-hero__book img {
  border-radius: 3px;
  box-shadow: 0 34px 70px -30px rgba(20, 18, 16, .45);
  animation: bookFloat 7s ease-in-out infinite;
}
@keyframes bookFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-9px); }
}
.s-hero__stamp {
  position: absolute; right: -.7rem; bottom: -.9rem;
  width: 3rem; height: 3rem; font-size: 1.5rem;
  border-radius: 3px;
  box-shadow: 0 8px 22px -8px rgba(196,0,0,.6);
}
.s-hero__proof {
  display: flex; align-items: center; gap: 1.6rem;
  margin-bottom: 1.9rem;
}
.s-hero__proof-item { display: flex; flex-direction: column; align-items: center; gap: .15rem; }
.s-hero__proof-item strong {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(1.7rem, 6.4vw, 2.3rem); line-height: 1;
  letter-spacing: .02em;
}
.s-hero__proof-item span {
  font-family: var(--font-display); font-size: .62rem; font-weight: 500;
  letter-spacing: .3em; text-indent: .3em; color: var(--ink-mute);
  line-height: 1.5;
}
.s-hero__proof-sep { width: 1px; height: 3rem; background: rgba(20,18,16,.25); }
.s-hero__actions {
  display: flex; flex-direction: column; align-items: center; gap: .8rem;
  width: 100%;
}
.s-hero__reassure {
  margin-top: 1.3rem; font-size: .78rem; letter-spacing: .06em;
  color: var(--ink-mute);
}
.s-hero__kanji {
  position: absolute; top: 50%; right: .35rem;
  transform: translateY(-50%);
  writing-mode: vertical-rl;
  font-family: var(--font-kanji); font-weight: 600;
  font-size: clamp(1.5rem, 5vw, 2.4rem);
  letter-spacing: .55em; color: rgba(20,18,16,.13);
  pointer-events: none;
}

@media (min-width: 900px) {
  .s-hero {
    flex-direction: row; flex-wrap: wrap;
    align-content: center; align-items: flex-start;
    text-align: left; gap: 0;
    padding-top: calc(7rem + env(safe-area-inset-top));
  }
  .s-hero__eyebrow, .s-hero__title, .s-hero__rule, .s-hero__sub,
  .s-hero__proof, .s-hero__actions, .s-hero__reassure { flex: 0 0 auto; width: 47%; margin-right: 53%; }
  .s-hero__title {
    align-items: flex-start;
    width: 60%; margin-right: 40%;
    font-size: clamp(2.2rem, 3.6vw, 3.8rem);
  }
  .s-hero__title span { white-space: nowrap; }
  .s-hero__rule { margin-left: 0; }
  .s-hero__sub { margin-bottom: 2.2rem; }
  /* centering via `translate` — the .rv reveal ends in `transform: none`,
     which would cancel a transform-based -50% shift */
  .s-hero__book { order: 10; width: 40%; margin: 0; position: absolute; right: 4%; top: 50%; translate: 0 -50%; }
  .s-hero__proof { justify-content: flex-start; }
  .s-hero__proof-item { align-items: flex-start; }
  .s-hero__actions { flex-direction: row; justify-content: flex-start; }
  .s-hero__actions .btn--big { width: auto; }
  .s-hero__kanji { right: auto; left: calc(50% - 1rem); opacity: .8; }
}

/* ════════════ 02 · AUTHORITY ════════════ */
.s-authority {
  background: var(--red); color: var(--washi);
  padding: clamp(4.5rem, 12vw, 7.5rem) var(--pad);
  text-align: center;
  position: relative; overflow: hidden;
}
.s-authority::before { /* faint giant enso ghost */
  content: "○"; position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -54%);
  font-size: clamp(30rem, 90vw, 46rem); line-height: 1;
  color: rgba(20,18,16,.07); pointer-events: none;
  font-family: var(--font-kanji);
}
.s-authority__inner { position: relative; max-width: var(--maxw); margin: 0 auto; }
.s-authority__number {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(3.6rem, 17vw, 9.5rem);
  line-height: .95; letter-spacing: .01em;
}
.s-authority__number span { color: var(--ink); }
.s-authority__label {
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(.8rem, 3vw, 1.1rem);
  letter-spacing: .58em; text-indent: .58em;
  margin-top: .8rem;
}
.s-authority__rule {
  width: 4rem; height: 2px; background: rgba(243,239,228,.5);
  margin: 2.1rem auto;
}
.s-authority__line {
  font-weight: 300; font-size: clamp(1rem, 3.6vw, 1.25rem);
  line-height: 1.8;
}
.s-authority__meta {
  margin-top: 2.1rem;
  display: flex; flex-direction: column; gap: .5rem; align-items: center;
}
.s-authority__stars { font-size: .92rem; letter-spacing: .12em; }
.s-authority__badge {
  font-family: var(--font-display); font-weight: 600;
  font-size: .72rem; letter-spacing: .3em; text-indent: .3em;
  color: var(--ink);
}

/* ════════════ 03 · PROBLEM ════════════ */
.s-problem {
  background: var(--ink); color: var(--washi);
  padding: clamp(6rem, 18vw, 10rem) var(--pad);
  text-align: center;
}
.s-problem__title {
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(2.2rem, 9vw, 4.2rem);
  line-height: 1.12; letter-spacing: .04em;
  margin-top: 2rem;
}
.s-problem__lines {
  margin: 2.8rem auto 0; max-width: 26rem;
  display: flex; flex-direction: column; gap: .5rem;
  font-weight: 300; color: rgba(243,239,228,.62);
  font-size: .95rem;
}
.s-problem__turn {
  margin: 3rem auto 0; max-width: 26rem;
  font-family: var(--font-book); font-style: italic;
  font-size: clamp(1.15rem, 4.4vw, 1.5rem); line-height: 1.6;
}
.s-problem__dot {
  display: block; width: .6rem; height: .6rem; border-radius: 50%;
  background: var(--red-bright); margin: 3rem auto 0;
}

/* ════════════ 04 · PROMISE ════════════ */
.s-promise {
  position: relative; overflow: hidden;
  padding: clamp(5.5rem, 14vw, 9rem) var(--pad);
  max-width: var(--maxw); margin: 0 auto;
}
.s-promise__enso {
  position: absolute; top: -6%; right: -34%;
  width: min(34rem, 105vw); aspect-ratio: 1;
  background: url("../img/enso.jpg") center/contain no-repeat;
  mix-blend-mode: multiply; opacity: .16;
  pointer-events: none;
}
@media (min-width: 900px) {
  .s-promise__enso {
    top: -3rem; right: 50%; translate: 50% 0;
    width: 32rem;
  }
}
.s-promise__title {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(2rem, 8.4vw, 3.6rem);
  line-height: 1.12; letter-spacing: .05em;
  text-align: center; margin-top: 1.9rem;
}
.s-promise__title em { font-style: normal; color: var(--red); }
.s-promise__pillars {
  list-style: none;
  margin-top: clamp(3rem, 9vw, 5rem);
  display: flex; flex-direction: column;
}
.s-promise__pillars li {
  display: flex; align-items: center; gap: 1.4rem;
  padding: 1.9rem 0;
  border-top: 1px solid rgba(20,18,16,.14);
}
.s-promise__pillars li:last-child { border-bottom: 1px solid rgba(20,18,16,.14); }
.s-promise__pillars li:nth-child(even) { flex-direction: row-reverse; text-align: right; }
.s-promise__kanji {
  flex: 0 0 auto;
  font-family: var(--font-kanji); font-weight: 600;
  font-size: clamp(2.9rem, 11vw, 4.6rem); line-height: 1;
  color: var(--red);
}
.s-promise__pillars h3 {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(1.05rem, 4.4vw, 1.5rem);
  letter-spacing: .16em;
}
.s-promise__pillars p {
  font-weight: 300; color: var(--ink-soft); font-size: .92rem;
  margin-top: .3rem;
}
@media (min-width: 860px) {
  .s-promise__pillars { flex-direction: row; }
  .s-promise__pillars li, .s-promise__pillars li:nth-child(even) {
    flex: 1; flex-direction: column; text-align: center;
    gap: 1.1rem; padding: 1rem 1.6rem;
    border-top: 0; border-left: 1px solid rgba(20,18,16,.14);
  }
  .s-promise__pillars li:last-child { border-bottom: 0; }
  .s-promise__pillars li:first-child { border-left: 0; }
}

/* ════════════ 05 · INSIDE ════════════ */
.s-inside {
  background: var(--washi-warm);
  padding: clamp(5.5rem, 14vw, 9rem) 0;
}
.s-inside > * { padding-left: var(--pad); padding-right: var(--pad); }
.s-inside__title {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(1.9rem, 8vw, 3.4rem);
  line-height: 1.14; letter-spacing: .05em;
  text-align: center; margin-top: 1.9rem;
}
.s-inside__title span { color: var(--red); }
.s-inside__copy {
  max-width: 32rem; margin: 1.6rem auto 0;
  text-align: center; font-weight: 300; color: var(--ink-soft);
  font-size: .95rem;
}
.s-inside__parts {
  list-style: none;
  max-width: 32rem; margin: 2.4rem auto 0;
  display: grid; grid-template-columns: 1fr 1fr; gap: .7rem 1.4rem;
}
.s-inside__parts li {
  font-family: var(--font-book); font-size: .98rem; font-style: italic;
  display: flex; flex-direction: column;
}
.s-inside__parts span {
  font-family: var(--font-display); font-style: normal;
  font-size: .6rem; font-weight: 600; letter-spacing: .3em;
  color: var(--red);
}
.s-inside__scroll {
  margin-top: 2.8rem;
  display: flex; gap: 1rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 1.4rem;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.s-inside__scroll::-webkit-scrollbar { display: none; }
.story {
  scroll-snap-align: center;
  flex: 0 0 min(64vw, 15.5rem);
  background: var(--paper);
  border-radius: 2px;
  box-shadow: 0 14px 34px -18px rgba(20,18,16,.4);
  padding: 1.1rem 1.1rem 1.3rem;
  text-align: left;
  display: flex; flex-direction: column; gap: .55rem;
  position: relative;
  transition: transform .6s var(--ease-zen), box-shadow .6s var(--ease-zen);
}
.story:nth-child(odd) { transform: rotate(-.7deg); }
.story:nth-child(even) { transform: rotate(.6deg); }
.story:hover { transform: rotate(0) translateY(-5px); box-shadow: 0 22px 44px -18px rgba(20,18,16,.45); }
.story img {
  aspect-ratio: 1; object-fit: cover; border-radius: 2px;
  filter: saturate(.85) contrast(.98);
}
.story__no {
  position: absolute; top: 1.5rem; left: 1.5rem;
  width: 1.7rem; height: 1.7rem; display: grid; place-items: center;
  background: var(--red); color: var(--washi);
  font-family: var(--font-display); font-size: .78rem; font-weight: 600;
  border-radius: 2px;
}
.story__title {
  font-family: var(--font-display); font-weight: 600;
  font-size: .92rem; letter-spacing: .06em; line-height: 1.35;
  text-transform: uppercase;
}
.story__teaser {
  font-weight: 300; font-size: .82rem; line-height: 1.6; color: var(--ink-soft);
  display: none;
}
.story__teaser em {
  display: block; margin-top: .55rem;
  font-family: var(--font-book); font-style: italic; color: var(--red);
}
.story[aria-expanded="true"] .story__teaser { display: block; }
.story[aria-expanded="true"] img { display: none; }
.story--more {
  justify-content: center; align-items: center; text-align: center;
  background: var(--ink); color: var(--washi); gap: 1rem;
}
.story--more .story__title { font-weight: 500; letter-spacing: .12em; }
.story--more__seal {
  width: 3rem; height: 3rem; font-size: 1.4rem; border-radius: 3px;
}
.story--more__cta {
  font-family: var(--font-display); font-size: .66rem; font-weight: 600;
  letter-spacing: .26em; color: var(--red-bright);
  filter: brightness(1.5);
}
.s-inside__hint {
  text-align: center; margin-top: .2rem;
  font-size: .7rem; letter-spacing: .18em; text-transform: uppercase;
  color: var(--ink-mute);
}
@media (min-width: 860px) {
  .s-inside__parts {
    max-width: none;
    display: flex; justify-content: center;
    gap: 3.5rem;
  }
  .s-inside__parts li { align-items: center; text-align: center; }
}
@media (min-width: 900px) {
  .s-inside__scroll {
    max-width: var(--maxw); margin-left: auto; margin-right: auto;
    flex-wrap: wrap; justify-content: center; overflow: visible;
  }
  .story { flex: 0 0 15rem; }
  .s-inside__hint { display: none; }
}

/* ════════════ 06 · SAMPLE ════════════ */
.s-sample {
  padding: clamp(5.5rem, 14vw, 9rem) var(--pad);
  display: flex; flex-direction: column; align-items: center;
}
.s-sample__title {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(1.9rem, 8vw, 3.2rem); letter-spacing: .06em;
  margin-top: 1.9rem; text-align: center;
}
.s-sample__page {
  margin-top: 2.8rem;
  width: min(100%, 38rem);
  background: var(--paper);
  border-radius: 2px;
  box-shadow:
    0 1px 0 rgba(20,18,16,.08),
    0 24px 60px -28px rgba(20,18,16,.42),
    inset 0 0 60px rgba(201,192,169,.18);
  padding: clamp(1.8rem, 7vw, 3.4rem);
  font-family: var(--font-book);
  font-size: clamp(1rem, 3.9vw, 1.13rem);
  line-height: 1.85; color: #26231E;
}
.s-sample__page > p { margin-bottom: .95em; }
.s-sample__pagehead { text-align: center; margin-bottom: 2rem; }
.s-sample__pagehead span {
  font-family: var(--font-display); font-size: .62rem; font-weight: 600;
  letter-spacing: .4em; text-indent: .4em; color: var(--red);
}
.s-sample__pagehead h3 {
  font-family: var(--font-book); font-weight: 500;
  font-size: clamp(1.5rem, 6vw, 2rem);
  margin-top: .5rem;
}
.s-sample__pagehead::after {
  content: ""; display: block; width: 3rem; height: 1px;
  background: rgba(20,18,16,.3); margin: 1.2rem auto 0;
}
.s-sample__drop::first-letter {
  font-size: 3.1em; float: left; line-height: .82;
  padding: .06em .12em 0 0; color: var(--red);
}
.s-sample__reflect {
  margin-top: 2.2rem; padding-top: 1.6rem;
  border-top: 1px solid rgba(20,18,16,.16);
  text-align: center;
}
.s-sample__reflect span {
  font-family: var(--font-display); font-size: .6rem; font-weight: 600;
  letter-spacing: .4em; text-indent: .4em; color: var(--ink-mute);
}
.s-sample__reflect p { font-style: italic; margin-top: .8rem; }
.s-sample__after {
  margin: 2.6rem 0 1.5rem; text-align: center;
  font-weight: 300; color: var(--ink-soft); font-size: .95rem;
}

/* ════════════ 07 · PROOF ════════════ */
.s-proof {
  background: var(--washi-warm);
  padding: clamp(5.5rem, 14vw, 9rem) var(--pad);
}
.s-proof__title {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(1.9rem, 8vw, 3.4rem); letter-spacing: .05em;
  line-height: 1.14; text-align: center; margin-top: 1.9rem;
}
.s-proof__notes {
  max-width: var(--maxw);
  margin: clamp(2.6rem, 8vw, 4.5rem) auto 0;
  columns: 1; column-gap: 1.3rem;
}
.note {
  break-inside: avoid;
  background: var(--paper);
  border-radius: 2px;
  box-shadow: 0 14px 34px -20px rgba(20,18,16,.4);
  padding: 1.5rem 1.5rem 1.3rem;
  margin-bottom: 1.3rem;
}
.note:nth-child(odd) { transform: rotate(-.5deg); }
.note:nth-child(even) { transform: rotate(.5deg); }
.note__stars { color: var(--red); letter-spacing: .2em; font-size: .82rem; }
.note blockquote {
  font-family: var(--font-book); font-style: italic;
  font-size: 1.04rem; line-height: 1.65;
  margin-top: .7rem;
}
.note figcaption {
  margin-top: .9rem;
  font-family: var(--font-display); font-size: .64rem; font-weight: 500;
  letter-spacing: .14em; color: var(--ink-mute);
  text-transform: uppercase;
}
@media (min-width: 700px) { .s-proof__notes { columns: 2; } }
@media (min-width: 1020px) { .s-proof__notes { columns: 3; } }

/* ════════════ 08 · COMMUNITY ════════════ */
.s-community {
  padding: clamp(5.5rem, 14vw, 9rem) var(--pad);
  max-width: var(--maxw); margin: 0 auto;
}
.s-community__title {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(1.9rem, 7.6vw, 3.4rem); letter-spacing: .05em;
  line-height: 1.14; text-align: center; margin-top: 1.9rem;
}
.s-community__copy {
  max-width: 30rem; margin: 1.5rem auto 0; text-align: center;
  font-weight: 300; color: var(--ink-soft); font-size: .95rem;
}
.s-community__stats {
  display: flex; justify-content: center; gap: clamp(1.6rem, 7vw, 4rem);
  margin-top: 2.4rem;
}
.s-community__stats div { display: flex; flex-direction: column; align-items: center; }
.s-community__stats strong {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(1.6rem, 6.4vw, 2.4rem); line-height: 1.1;
  color: var(--red);
}
.s-community__stats span {
  font-family: var(--font-display); font-size: .6rem; font-weight: 500;
  letter-spacing: .26em; text-indent: .26em; color: var(--ink-mute);
  margin-top: .3rem;
}
.s-community__grid {
  margin-top: 2.8rem;
  display: grid; grid-template-columns: repeat(2, 1fr); gap: .7rem;
}
.s-community__grid img {
  aspect-ratio: 1; object-fit: cover; width: 100%;
  border-radius: 2px;
  filter: saturate(.8) sepia(.06);
}
.s-community__quote {
  aspect-ratio: 1;
  background: var(--ink); color: var(--washi);
  border-radius: 2px;
  display: flex; flex-direction: column; justify-content: center; align-items: center;
  gap: .9rem; padding: 1.2rem; text-align: center;
}
.s-community__quote blockquote {
  font-family: var(--font-book); font-style: italic;
  font-size: clamp(.9rem, 3.4vw, 1.1rem); line-height: 1.55;
}
.s-community__quote .stamp { width: 2.2rem; height: 2.2rem; font-size: 1rem; border-radius: 2px; }
@media (min-width: 860px) { .s-community__grid { grid-template-columns: repeat(3, 1fr); } }

.s-community__form {
  margin: 3rem auto 0; max-width: 34rem;
  background: var(--washi-warm);
  border-radius: 2px; padding: 1.8rem 1.5rem;
  box-shadow: inset 0 0 0 1px rgba(20,18,16,.1);
}
.s-community__form-head {
  font-weight: 300; font-size: .92rem; color: var(--ink-soft);
  text-align: center;
}
.s-community__form-head em { font-style: normal; font-weight: 500; color: var(--ink); }
.s-community__form-row {
  margin-top: 1.3rem;
  display: flex; flex-direction: column; gap: .7rem;
}
.s-community__form input[type="email"] {
  font: inherit; font-size: .95rem;
  padding: 1rem 1.1rem;
  background: var(--paper);
  border: 1px solid rgba(20,18,16,.2); border-radius: 2px;
  color: var(--ink); width: 100%;
  transition: border-color .4s;
}
.s-community__form input[type="email"]:focus {
  outline: none; border-color: var(--red);
}
.s-community__form-note {
  margin-top: .9rem; text-align: center;
  font-size: .72rem; letter-spacing: .06em; color: var(--ink-mute);
}
@media (min-width: 700px) {
  .s-community__form-row { flex-direction: row; }
  .s-community__form-row input { flex: 1; }
}

/* ════════════ 09 · RITUAL ════════════ */
.s-ritual {
  position: relative; overflow: hidden;
  background: #0B0A09; color: var(--washi);
  min-height: 88vh;
  display: flex; align-items: center; justify-content: center;
  padding: clamp(6rem, 16vw, 9rem) var(--pad);
  text-align: center;
}
.s-ritual__bg {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: 16% center; opacity: .62;
}
@media (min-width: 900px) { .s-ritual__bg { object-position: center; } }
.s-ritual__inner { position: relative; display: flex; flex-direction: column; gap: 1.5rem; }
.s-ritual__inner .label { margin-bottom: 1.6rem; }
.s-ritual__line {
  font-family: var(--font-book); font-style: italic; font-weight: 400;
  font-size: clamp(1.5rem, 6.4vw, 2.6rem);
  text-shadow: 0 2px 24px rgba(0,0,0,.75);
}
.s-ritual__line--red { color: var(--red-bright); filter: brightness(1.35); }

/* ════════════ 10 · AUTHOR ════════════ */
.s-author {
  max-width: var(--maxw); margin: 0 auto;
  padding: clamp(5.5rem, 14vw, 9rem) var(--pad);
  display: flex; flex-direction: column; gap: 2.4rem;
}
.s-author__media { position: relative; width: min(100%, 26rem); margin: 0 auto; }
.s-author__media img {
  border-radius: 2px;
  filter: saturate(.55) sepia(.14) contrast(1.02);
  box-shadow: 0 24px 55px -26px rgba(20,18,16,.45);
}
.s-author__kanji {
  position: absolute; top: 1rem; right: -1.1rem;
  writing-mode: vertical-rl;
  font-family: var(--font-kanji); font-weight: 600;
  font-size: 2rem; letter-spacing: .35em;
  color: var(--red);
  text-shadow: 0 1px 0 rgba(243,239,228,.6);
}
.s-author__body { text-align: center; }
.s-author__name {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(2rem, 8vw, 3.2rem); letter-spacing: .14em;
  margin-top: 1.6rem;
}
.s-author__bio {
  max-width: 30rem; margin: 1.6rem auto 0;
  font-weight: 300; color: var(--ink-soft); font-size: .95rem;
  display: flex; flex-direction: column; gap: 1rem;
}
.s-author__bio em { font-style: italic; }
.s-author__sig {
  font-family: var(--font-book); font-style: italic;
  font-size: 1.3rem; color: var(--ink);
}
@media (min-width: 900px) {
  .s-author { flex-direction: row; align-items: center; gap: 4.5rem; }
  .s-author__media { flex: 0 0 42%; }
  .s-author__body { text-align: left; flex: 1; }
  .s-author__body .label { text-align: left; }
  .s-author__body .label::after { margin-left: 0; }
  .s-author__bio { margin-left: 0; }
}

/* ════════════ 11 · FAQ ════════════ */
.s-faq {
  background: var(--washi-warm);
  padding: clamp(5.5rem, 14vw, 9rem) var(--pad);
}
.s-faq__title {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(1.9rem, 8vw, 3.2rem); letter-spacing: .06em;
  text-align: center; margin-top: 1.9rem;
}
.s-faq__list { max-width: 42rem; margin: clamp(2.4rem, 7vw, 4rem) auto 0; }
.faq { border-top: 1px solid rgba(20,18,16,.16); }
.faq:last-child { border-bottom: 1px solid rgba(20,18,16,.16); }
.faq summary {
  list-style: none; cursor: pointer;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 1.25rem .2rem;
  font-family: var(--font-display); font-weight: 500;
  font-size: .95rem; letter-spacing: .08em;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary span {
  position: relative; flex: 0 0 .9rem; height: .9rem;
  transition: transform .5s var(--ease-zen);
}
.faq summary span::before, .faq summary span::after {
  content: ""; position: absolute; background: var(--red);
  top: 50%; left: 0; width: 100%; height: 1.5px; transform: translateY(-50%);
}
.faq summary span::after { transform: translateY(-50%) rotate(90deg); transition: transform .5s var(--ease-zen); }
.faq[open] summary span::after { transform: translateY(-50%) rotate(0deg); }
.faq p {
  padding: 0 .2rem 1.4rem;
  font-weight: 300; font-size: .92rem; color: var(--ink-soft);
  max-width: 36rem;
}

/* ════════════ 12 · BUY ════════════ */
.s-buy {
  padding: clamp(5.5rem, 14vw, 9rem) var(--pad) clamp(6rem, 15vw, 10rem);
  max-width: var(--maxw); margin: 0 auto;
  display: flex; flex-direction: column; align-items: center;
  text-align: center;
}
.s-buy__media {
  width: min(100%, 30rem);
  margin-bottom: 2.6rem;
}
.s-buy__media img {
  border-radius: 3px;
  box-shadow: 0 30px 64px -30px rgba(20,18,16,.5);
}
.s-buy__title {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(2.2rem, 9.4vw, 4.4rem);
  line-height: 1.08; letter-spacing: .05em;
}
.s-buy__sub {
  margin-top: 1.1rem;
  font-family: var(--font-book); font-style: italic;
  font-size: clamp(1.1rem, 4.4vw, 1.4rem); color: var(--ink-soft);
}
.s-buy__card {
  margin-top: 3rem; width: 100%;
  background: var(--paper);
  border-radius: 3px;
  box-shadow: 0 30px 70px -32px rgba(20,18,16,.45), inset 0 0 0 1px rgba(20,18,16,.07);
  padding: clamp(1.6rem, 6vw, 3rem);
  display: flex; flex-direction: column; align-items: center; gap: 1.8rem;
}
.s-buy__book { width: min(52vw, 13rem); }
.s-buy__book img {
  border-radius: 2px;
  box-shadow: 0 18px 40px -18px rgba(20,18,16,.5);
}
.s-buy__info { display: flex; flex-direction: column; align-items: center; }
.s-buy__info h3 {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(1.5rem, 6.4vw, 2.1rem); letter-spacing: .18em;
}
.s-buy__desc {
  margin-top: .6rem; max-width: 24rem;
  font-weight: 300; font-size: .9rem; color: var(--ink-soft);
}
.s-buy__proofline {
  margin-top: 1.1rem; font-size: .82rem; line-height: 1.7; color: var(--ink-soft);
}
.s-buy__proofline strong { color: var(--red); font-weight: 700; }
.s-buy__formats {
  margin-top: 1.6rem; width: 100%;
  display: grid; grid-template-columns: 1fr 1fr; gap: .6rem;
}
.s-buy__formats a {
  display: flex; flex-direction: column; align-items: center; gap: .15rem;
  padding: .85rem .4rem;
  border: 1px solid rgba(20,18,16,.22); border-radius: 2px;
  transition: border-color .4s, background .4s, transform .4s var(--ease-zen);
}
.s-buy__formats a:hover { border-color: var(--red); transform: translateY(-2px); }
.s-buy__formats span {
  font-family: var(--font-display); font-size: .6rem; font-weight: 600;
  letter-spacing: .22em; text-indent: .22em; color: var(--ink-mute);
}
.s-buy__formats strong {
  font-family: var(--font-display); font-weight: 600; font-size: .98rem;
}
.s-buy__cta { margin-top: 1.6rem; }
.s-buy__trust {
  margin-top: 1.1rem; font-size: .72rem; letter-spacing: .04em;
  color: var(--ink-mute);
}
@media (min-width: 860px) {
  .s-buy__card { flex-direction: row; text-align: left; gap: 3rem; }
  .s-buy__book { flex: 0 0 13rem; }
  .s-buy__info { align-items: flex-start; }
  .s-buy__formats { grid-template-columns: repeat(4, 1fr); }
}

/* ════════════ FOOTER ════════════ */
.footer {
  background: var(--ink); color: rgba(243,239,228,.75);
  padding: 3.5rem var(--pad) calc(5.5rem + env(safe-area-inset-bottom));
  display: flex; flex-direction: column; align-items: center; gap: 1.4rem;
  text-align: center;
}
.footer__seal { width: 2.6rem; height: 2.6rem; font-size: .95rem; border-radius: 2px; writing-mode: vertical-rl; }
.footer__tag { font-family: var(--font-book); font-style: italic; font-size: 1rem; }
.footer__links { display: flex; flex-wrap: wrap; justify-content: center; gap: 1.6rem; }
.footer__links a {
  font-family: var(--font-display); font-size: .66rem; font-weight: 500;
  letter-spacing: .24em; text-transform: uppercase;
}
.footer__links a:hover { color: var(--red-bright); }
.footer__legal { font-size: .7rem; color: rgba(243,239,228,.4); }

/* ════════════ STICKY BAR ════════════ */
.stickybar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 85;
  display: flex; align-items: center; gap: .9rem;
  padding: .7rem var(--pad);
  padding-bottom: max(.7rem, env(safe-area-inset-bottom));
  background: rgba(243, 239, 228, .88);
  -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px);
  box-shadow: 0 -1px 0 rgba(20,18,16,.14);
  transform: translateY(110%);
  transition: transform .7s var(--ease-zen);
}
.stickybar.show { transform: translateY(0); }
.stickybar img { width: 2.4rem; height: auto; border-radius: 1px; box-shadow: 0 4px 10px -4px rgba(20,18,16,.5); }
.stickybar__text { margin-right: auto; display: flex; flex-direction: column; line-height: 1.3; }
.stickybar__text strong { font-family: var(--font-display); font-weight: 600; font-size: .85rem; letter-spacing: .06em; }
.stickybar__text span { font-size: .72rem; color: var(--ink-mute); }
.stickybar .btn { padding: .8rem 1.2rem; font-size: .68rem; }
@media (min-width: 860px) { .stickybar { display: none; } }

/* ════════════ ACCESSIBILITY ════════════ */
:focus-visible { outline: 2px solid var(--red); outline-offset: 3px; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .rv { opacity: 1; transform: none; filter: none; transition: none; }
  .rv.in .stamp, .stamp.in { animation: none; }
  .s-hero__book img { animation: none; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}