:root {
  --paper-cream: #eee9df;
  --paper-white: #faf8f2;
  --paper-ink: #171512;
  --paper-wine: #7f2732;
  --paper-muted: #615c54;
  --paper-rule: rgba(23, 21, 18, 0.22);
  --paper-shadow: 0 22px 55px rgba(42, 34, 24, 0.13);
}

html.paper-anchor-aligning {
  scroll-behavior: auto !important;
}

.paper-page {
  color: var(--paper-ink);
  background-color: var(--paper-cream);
  background-image:
    radial-gradient(circle at 18% 12%, rgba(255, 255, 255, 0.48), transparent 28%),
    repeating-linear-gradient(88deg, rgba(23, 21, 18, 0.018) 0 1px, transparent 1px 7px);
}

.paper-page::before {
  position: fixed;
  z-index: 100;
  inset: 0;
  opacity: 0.18;
  pointer-events: none;
  content: "";
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 160 160' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.12'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
}

.paper-page main > section {
  position: relative;
  scroll-margin-top: 84px;
}

.paper-page :is(h1, h2, h3, blockquote) {
  text-wrap: balance;
  word-break: auto-phrase;
}

.paper-page :is(p, li, dd, figcaption, summary) {
  overflow-wrap: anywhere;
  word-break: auto-phrase;
}

.paper-page h2 span,
.paper-page h1 span {
  display: block;
}

.paper-page img {
  background: #ded7ca;
}

/* Navigation */
.paper-nav {
  --nav-height: 72px;
  background: rgba(238, 233, 223, 0.92);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.52);
}

.paper-nav__inner,
.paper-nav .template-nav__inner {
  width: min(100% - 32px, 1440px);
  gap: clamp(12px, 2vw, 30px);
}

.paper-nav .paper-mark {
  flex: 0 0 auto;
  min-width: 138px;
  padding-inline: 0;
  border-radius: 0;
  color: var(--paper-ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 15px;
  letter-spacing: 0.04em;
}

.paper-nav-menu {
  min-width: 0;
  justify-content: flex-end;
  gap: 5px;
}

.paper-nav .paper-nav-menu a {
  position: relative;
  min-width: 0;
  min-height: 34px;
  padding: 7px clamp(7px, 0.75vw, 12px);
  border: 1px solid var(--paper-rule);
  border-radius: 1px;
  color: var(--paper-muted);
  background: rgba(250, 248, 242, 0.62);
  font-family: var(--font-sans);
  font-size: clamp(10px, 0.78vw, 12px);
  font-weight: 600;
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition: color 180ms ease, background 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.paper-nav .paper-nav-menu a::before {
  position: absolute;
  right: 8px;
  bottom: 4px;
  left: 8px;
  height: 1px;
  background: var(--paper-wine);
  transform: scaleX(0);
  transform-origin: left;
  content: "";
  transition: transform 180ms ease;
}

.paper-nav .paper-nav-menu a:hover,
.paper-nav .paper-nav-menu a.is-active,
.paper-nav .paper-nav-menu a[aria-current="location"] {
  color: var(--paper-ink);
  border-color: var(--paper-wine);
  background: var(--paper-white);
  transform: translateY(-1px);
}

.paper-nav .paper-nav-menu a.is-active::before,
.paper-nav .paper-nav-menu a[aria-current="location"]::before {
  transform: scaleX(1);
}

.paper-nav-toggle {
  display: none;
  position: relative;
  flex: 0 0 48px;
  width: 48px;
  height: 48px;
  padding: 0;
  border: 1px solid var(--paper-ink);
  border-radius: 0;
  color: var(--paper-ink);
  background: var(--paper-white);
}

.paper-nav-toggle span {
  position: absolute;
  left: 12px;
  width: 22px;
  height: 1px;
  background: currentColor;
  transition: transform 200ms ease, top 200ms ease;
}

.paper-nav-toggle span:first-child { top: 18px; }
.paper-nav-toggle span:last-child { top: 28px; }
.paper-nav-toggle[aria-expanded="true"] span:first-child { top: 23px; transform: rotate(45deg); }
.paper-nav-toggle[aria-expanded="true"] span:last-child { top: 23px; transform: rotate(-45deg); }

/* Shared editorial details */
.paper-section-intro,
.paper-archive-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.56fr);
  gap: 18px clamp(30px, 6vw, 90px);
  align-items: end;
  margin-bottom: clamp(48px, 7vw, 92px);
  padding-top: 38px;
  border-top: 1px solid var(--paper-ink);
}

.paper-section-intro .paper-running,
.paper-archive-head .paper-running,
.paper-materials-copy .paper-running,
.paper-interview-note .paper-running,
.paper-studio header .paper-running,
.paper-delivery-copy .paper-running,
.paper-proof-lead .paper-running,
.paper-faq header .paper-running,
.paper-letter .paper-running {
  position: static;
  grid-column: 1 / -1;
  margin: 0 0 7px;
  color: var(--paper-wine);
  letter-spacing: 0.11em;
}

.paper-section-intro h2,
.paper-archive-head h2,
.paper-materials-copy h2,
.paper-studio h2,
.paper-delivery-copy h2,
.paper-faq h2 {
  font-size: clamp(42px, 5vw, 68px);
  line-height: 1.05;
}

.paper-section-intro h2 span,
.paper-archive-head h2 span {
  white-space: nowrap;
}

.paper-section-intro > p:last-child,
.paper-archive-head > p:last-child,
.paper-materials-copy > p:last-of-type,
.paper-studio header > p:last-child,
.paper-delivery-copy > p:last-child,
.paper-faq header > p:last-child {
  max-width: 42em;
  line-height: 1.9;
}

.paper-page figure {
  margin: 0;
}

.paper-page figcaption {
  color: var(--paper-muted);
  font-size: 13px;
  line-height: 1.6;
}

.paper-page figcaption span {
  margin-right: 14px;
  color: var(--paper-wine);
  font-family: var(--font-sans);
  font-size: 10px;
  letter-spacing: 0.08em;
}

/* 01 — open book */
.paper-hero {
  overflow: hidden;
  padding: clamp(30px, 5vw, 72px) 0 clamp(74px, 8vw, 126px);
}

.paper-hero::after {
  position: absolute;
  z-index: -1;
  right: -10vw;
  bottom: 4%;
  width: 42vw;
  height: 42vw;
  border: 1px solid rgba(127, 39, 50, 0.26);
  border-radius: 50%;
  content: "";
}

.paper-spread {
  position: relative;
  grid-template-columns: minmax(0, 0.94fr) minmax(0, 1.06fr);
  max-width: 1320px;
  filter: drop-shadow(0 28px 45px rgba(42, 34, 24, 0.15));
}

.paper-spread::after {
  position: absolute;
  z-index: 3;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 34px;
  background: linear-gradient(90deg, transparent, rgba(23, 21, 18, 0.12), transparent);
  transform: translateX(-50%);
  pointer-events: none;
  content: "";
}

.paper-leaf {
  min-height: min(720px, calc(100svh - 118px));
  overflow: hidden;
  background-color: var(--paper-white);
  background-image: linear-gradient(rgba(255,255,255,0.42), rgba(255,255,255,0));
}

.paper-leaf--title {
  padding: 42px clamp(36px, 4vw, 64px) 64px;
}

.paper-title-block {
  max-width: 560px;
  gap: clamp(18px, 2.4vw, 30px);
}

.paper-title-block h1 {
  font-size: clamp(52px, 5.3vw, 82px);
  line-height: 1.02;
}

.paper-title-block > p:last-of-type {
  max-width: 31em;
  font-size: 17px;
  line-height: 1.9;
}

.paper-leaf--image {
  padding: 34px 34px 54px 46px;
}

.paper-leaf--image img {
  height: 100%;
  min-height: 520px;
  object-position: center;
}

/* 02 — three-column manifesto */
.paper-manifesto {
  overflow: hidden;
  padding: clamp(92px, 10vw, 150px) 0;
}

.paper-manifesto::before {
  position: absolute;
  top: 14%;
  left: 3%;
  width: 80px;
  height: 80px;
  border: 1px solid var(--paper-wine);
  border-radius: 50%;
  opacity: 0.32;
  content: "校";
  display: grid;
  place-items: center;
  color: var(--paper-wine);
  font: 28px Georgia, serif;
  transform: rotate(-8deg);
}

.paper-columns {
  grid-template-columns: minmax(230px, 0.96fr) minmax(300px, 1.1fr) minmax(150px, 0.42fr);
}

.paper-columns header h2 {
  line-height: 1.05;
}

.paper-philosophy-break {
  display: none;
}

.paper-mobile-punctuation {
  font-style: normal;
}

.paper-mobile-gap {
  display: inline !important;
}

.paper-mobile-gap::before {
  content: " ";
}

@media (min-width: 901px) {
  .paper-columns header .paper-philosophy-title {
    font-size: clamp(36px, 3.1vw, 46px);
    line-height: 1.22;
    white-space: nowrap;
  }

  .paper-philosophy-break {
    display: inline;
  }

  .paper-mobile-punctuation,
  .paper-mobile-gap {
    display: none !important;
  }
}

.paper-body-copy {
  max-width: 38em;
}

.paper-margin-notes {
  align-self: start;
  margin-top: 50px;
  background: rgba(250, 248, 242, 0.44);
}

/* 03 — stacked booklets */
.paper-services {
  overflow: hidden;
  padding: clamp(95px, 10vw, 150px) 0;
  background: #e3ddd1;
  border-block: 1px solid rgba(23, 21, 18, 0.14);
}

.paper-book-stack {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  min-height: 560px;
  align-items: center;
  perspective: 1200px;
}

.paper-book {
  position: relative;
  display: grid;
  align-content: space-between;
  min-height: 420px;
  padding: clamp(26px, 3vw, 42px);
  border: 1px solid rgba(23, 21, 18, 0.35);
  box-shadow: 12px 18px 28px rgba(42, 34, 24, 0.16);
  transform-origin: center bottom;
}

.paper-book::after {
  position: absolute;
  inset: 10px -9px -9px 10px;
  z-index: -1;
  border: 1px solid rgba(23, 21, 18, 0.25);
  background: transparent;
  content: "";
}

.paper-book > span {
  font: 10px var(--font-sans);
  letter-spacing: 0.12em;
}

.paper-book h3 {
  margin: auto 0 18px;
  font-size: clamp(36px, 4vw, 58px);
  line-height: 1;
}

.paper-book p {
  max-width: 20em;
  line-height: 1.75;
}

.paper-book .paper-text-link {
  margin-top: 22px;
  color: inherit;
}

.paper-book--red {
  grid-column: 1 / span 5;
  grid-row: 1;
  color: var(--paper-white);
  background: var(--paper-wine);
  transform: rotate(-4deg) translateY(30px);
}

.paper-book--cream {
  z-index: 2;
  grid-column: 5 / span 5;
  grid-row: 1;
  background: var(--paper-white);
  transform: rotate(1.5deg) translateY(-20px);
}

.paper-book--ink {
  z-index: 1;
  grid-column: 9 / span 4;
  grid-row: 1;
  color: var(--paper-white);
  background: var(--paper-ink);
  transform: rotate(4deg) translateY(44px);
}

/* 04 — black contents page */
.paper-contents {
  overflow: hidden;
  padding: clamp(95px, 10vw, 150px) 0;
  background:
    linear-gradient(90deg, transparent 49.9%, rgba(250,248,242,0.08) 50%, transparent 50.1%),
    #201e1a;
}

.paper-contents::after {
  position: absolute;
  top: 38px;
  right: 5%;
  width: 100px;
  height: 42px;
  border: 1px solid rgba(250,248,242,0.32);
  content: "CONTENTS";
  display: grid;
  place-items: center;
  color: rgba(250,248,242,0.62);
  font: 9px var(--font-sans);
  letter-spacing: 0.18em;
  transform: rotate(2deg);
}

.paper-contents-head h2 {
  max-width: 15em;
  line-height: 1.03;
}

.paper-contents-head h2 span {
  font: inherit;
  text-transform: none;
}

.paper-toc li {
  position: relative;
  overflow: hidden;
}

.paper-toc li::after {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 1px;
  background: var(--paper-wine);
  transform: scaleX(0);
  transform-origin: left;
  content: "";
  transition: transform 900ms var(--ease-out) var(--reveal-delay, 0ms);
}

.paper-toc li.is-visible::after { transform: scaleX(1); }

/* 05 — large case spread */
.paper-project {
  padding: clamp(100px, 11vw, 170px) 0;
  background: var(--paper-white);
}

.paper-project-layout {
  display: grid;
  grid-template-columns: minmax(270px, 0.68fr) minmax(0, 1.32fr);
  gap: clamp(36px, 7vw, 110px);
  align-items: center;
}

.paper-project-copy {
  position: relative;
  padding: 54px 0 34px;
  border-block: 1px solid var(--paper-ink);
}

.paper-project-copy .paper-running {
  left: 0;
  top: 18px;
}

.paper-project-copy h2 {
  margin-bottom: 28px;
  font-size: clamp(44px, 5.5vw, 76px);
  line-height: 1.04;
}

.paper-project-break {
  display: none;
}

.paper-project-mobile-punctuation {
  font-style: normal;
}

@media (min-width: 901px) {
  .paper-project-copy h2.paper-project-title {
    font-size: clamp(40px, 3.8vw, 54px);
    line-height: 1.08;
  }

  .paper-project-title > span {
    white-space: nowrap;
  }

  .paper-project-break {
    display: inline;
  }

  .paper-project-mobile-punctuation {
    display: none;
  }
}

.paper-project-copy > p:not(.paper-running) {
  line-height: 1.9;
}

.paper-project-facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 34px 0;
  padding: 18px 0;
  border-block: 1px solid var(--paper-rule);
}

.paper-project-facts div { min-width: 0; }
.paper-project-facts dt { color: var(--paper-wine); font: 10px var(--font-sans); }
.paper-project-facts dd { margin: 6px 0 0; font-size: 15px; }

.paper-project-visual {
  position: relative;
  padding: 20px 20px 48px;
  background: var(--paper-cream);
  box-shadow: var(--paper-shadow);
  transform: rotate(0.8deg);
}

.paper-project-visual::before {
  position: absolute;
  top: -18px;
  left: 13%;
  width: 112px;
  height: 38px;
  background: rgba(214, 203, 180, 0.72);
  transform: rotate(-3deg);
  content: "";
}

.paper-project-visual img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.paper-project-visual figcaption { padding-top: 14px; }

/* 06 — contact sheet */
.paper-archive {
  overflow: hidden;
  padding: clamp(95px, 10vw, 150px) 0;
  background: #d8d1c4;
}

.paper-archive-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(250px, 0.6fr);
  gap: clamp(20px, 3vw, 44px);
  align-items: stretch;
}

.paper-archive-main {
  display: grid;
  grid-template-rows: 1fr auto;
  padding: 14px 14px 42px;
  border: 1px solid rgba(23,21,18,0.35);
  background: var(--paper-white);
  transform: rotate(-0.6deg);
}

.paper-archive-main img {
  width: 100%;
  height: 100%;
  min-height: 580px;
  object-fit: cover;
}

.paper-archive-main figcaption { padding-top: 14px; }

.paper-archive-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.paper-archive-list article {
  display: grid;
  align-content: end;
  min-height: 230px;
  padding: 22px;
  border: 1px solid var(--paper-rule);
  background: rgba(250,248,242,0.72);
}

.paper-archive-list article:nth-child(2) {
  min-height: 300px;
  color: var(--paper-white);
  background: var(--paper-wine);
  transform: translateY(-28px);
}

.paper-archive-list article:nth-child(3) { transform: translateY(18px); }
.paper-archive-list article:nth-child(4) { min-height: 260px; background: var(--paper-ink); color: var(--paper-white); }
.paper-archive-list span { font: 9px var(--font-sans); letter-spacing: 0.08em; }
.paper-archive-list h3 { margin: 14px 0 8px; font-size: clamp(22px, 2vw, 30px); }
.paper-archive-list p { font-size: 13px; line-height: 1.6; }

/* 07 — binding split */
.paper-workshop {
  padding: clamp(100px, 11vw, 160px) 0;
}

.paper-workshop-layout {
  grid-template-columns: minmax(0, 1.18fr) minmax(280px, 0.82fr);
}

.paper-workshop figure {
  position: relative;
  box-shadow: 18px 20px 42px rgba(42, 34, 24, 0.15);
}

.paper-workshop figure::before {
  position: absolute;
  z-index: 2;
  top: 8%;
  bottom: 8%;
  left: -7px;
  width: 14px;
  background: repeating-linear-gradient(to bottom, var(--paper-wine) 0 5px, transparent 5px 14px);
  content: "";
}

.paper-workshop-copy h2.paper-workshop-title {
  font-size: clamp(40px, 3.5vw, 50px);
  line-height: 1.1;
}

.paper-workshop-title > span {
  white-space: nowrap;
}

/* 08 — material specimen tray */
.paper-materials {
  padding: clamp(100px, 11vw, 160px) 0 0;
  background: var(--paper-white);
}

.paper-materials-layout {
  display: grid;
  grid-template-columns: minmax(300px, 0.84fr) minmax(0, 1.16fr);
  gap: clamp(38px, 7vw, 104px);
  align-items: center;
}

.paper-materials-copy {
  padding-left: 28px;
  border-left: 4px double var(--paper-wine);
}

.paper-materials-copy h2 {
  margin-bottom: 26px;
  font-size: clamp(40px, 4.2vw, 60px);
}

.paper-material-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0;
  margin-top: 28px;
  list-style: none;
}

.paper-material-tags li {
  padding: 8px 12px;
  border: 1px solid var(--paper-rule);
  font: 11px var(--font-sans);
}

.paper-materials-visual {
  position: relative;
  padding: 22px 22px 50px;
  border: 16px solid #c8bead;
  background: var(--paper-cream);
  box-shadow: inset 0 0 0 1px rgba(23,21,18,0.28), var(--paper-shadow);
}

.paper-materials-visual img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.paper-materials-visual figcaption { padding-top: 14px; }

.paper-materials .visual-pair--paper {
  margin-top: clamp(78px, 10vw, 138px);
  border-top: 1px solid var(--paper-rule);
}

/* 09 — interview clipping */
.paper-interview {
  overflow: hidden;
  padding: clamp(105px, 11vw, 170px) 0;
  background: #ded7ca;
}

.paper-interview-layout {
  display: grid;
  grid-template-columns: minmax(180px, 0.42fr) minmax(300px, 0.72fr) minmax(0, 1.1fr);
  gap: clamp(24px, 4vw, 60px);
  align-items: center;
}

.paper-interview-note {
  position: relative;
  align-self: start;
  min-height: 390px;
  padding: 64px 24px 30px;
  background:
    repeating-linear-gradient(to bottom, transparent 0 31px, rgba(23,21,18,0.16) 31px 32px),
    var(--paper-white);
  box-shadow: 7px 10px 22px rgba(42, 34, 24, 0.12);
  transform: rotate(-2deg);
}

.paper-interview-note .paper-running { position: absolute; top: 22px; left: 24px; }
.paper-note-label { color: var(--paper-wine); font: 11px var(--font-sans); }
.paper-interview-note > p:not(.paper-running, .paper-note-label, .paper-note-sign) { margin-top: 42px; line-height: 2; }
.paper-note-sign { position: absolute; right: 24px; bottom: 26px; color: var(--paper-wine); font-style: italic; }

.paper-interview-quote {
  position: relative;
  padding: 34px 0;
  border-block: 1px solid var(--paper-ink);
}

.paper-interview-quote::after {
  position: absolute;
  right: -12px;
  top: -26px;
  width: 74px;
  height: 74px;
  display: grid;
  place-items: center;
  border: 2px solid var(--paper-wine);
  border-radius: 50%;
  color: var(--paper-wine);
  font: 12px var(--font-sans);
  content: "採録";
  transform: rotate(10deg) scale(0.86);
}

.paper-interview-label { color: var(--paper-wine); font: 10px var(--font-sans); letter-spacing: 0.12em; }
.paper-interview-quote blockquote { margin: 24px 0; font-size: clamp(28px, 2.6vw, 36px); line-height: 1.46; }
.paper-interview-quote > p { line-height: 1.9; }
.paper-interview-quote cite { display: block; margin-top: 22px; color: var(--paper-muted); font-size: 13px; }

.paper-interview-visual {
  padding: 15px 15px 44px;
  background: var(--paper-white);
  box-shadow: var(--paper-shadow);
  transform: rotate(1deg);
}

.paper-interview-visual img { width: 100%; min-height: 540px; object-fit: cover; }
.paper-interview-visual figcaption { padding-top: 13px; }

/* 10 — colophon */
.paper-studio {
  padding: clamp(105px, 11vw, 170px) 0;
  background: var(--paper-ink);
  color: var(--paper-white);
}

.paper-studio-layout {
  display: grid;
  grid-template-columns: minmax(270px, 0.62fr) minmax(280px, 0.68fr) minmax(0, 1fr);
  gap: clamp(28px, 5vw, 74px);
  align-items: start;
}

.paper-studio header {
  padding-top: 34px;
  border-top: 3px double rgba(250,248,242,0.65);
}

.paper-studio h2 { font-size: 38px; }
.paper-studio h2 span:first-child { white-space: nowrap; }
.paper-studio header > p:last-child { margin-top: 26px; color: #c8c1b6; }

.paper-studio-roster {
  border-top: 1px solid rgba(250,248,242,0.45);
}

.paper-studio-roster article {
  padding: 25px 0;
  border-bottom: 1px solid rgba(250,248,242,0.28);
}

.paper-studio-roster span { color: #ba8f93; font: 9px var(--font-sans); letter-spacing: 0.1em; }
.paper-studio-roster h3 { margin: 8px 0; font-size: 24px; }
.paper-studio-roster p { color: #c8c1b6; font-size: 14px; line-height: 1.7; }

.paper-studio-visual {
  padding: 12px 12px 40px;
  background: var(--paper-white);
  transform: translateY(52px) rotate(0.7deg);
}

.paper-studio-visual img { width: 100%; min-height: 560px; object-fit: cover; }
.paper-studio-visual figcaption { padding-top: 12px; color: var(--paper-muted); }

/* 11 — foldout route */
.paper-delivery {
  overflow: hidden;
  padding: clamp(110px, 12vw, 180px) 0;
  background: var(--paper-white);
}

.paper-delivery-layout {
  display: grid;
  grid-template-columns: minmax(260px, 0.68fr) minmax(0, 1.32fr);
  gap: 34px clamp(38px, 7vw, 105px);
  align-items: start;
}

.paper-delivery-copy {
  position: sticky;
  top: 110px;
  padding: 34px 0;
  border-block: 1px solid var(--paper-ink);
}

.paper-delivery-copy h2 { margin-bottom: 26px; }

.paper-delivery-copy h2.paper-delivery-title {
  font-size: clamp(38px, 3.5vw, 50px);
}

.paper-delivery-title > span {
  white-space: nowrap;
}

.paper-delivery-visual {
  position: relative;
  padding: 18px 18px 48px;
  border: 1px solid var(--paper-rule);
  background: var(--paper-cream);
  box-shadow: var(--paper-shadow);
}

.paper-delivery-visual::after {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  border-left: 1px dashed rgba(23,21,18,0.28);
  content: "";
}

.paper-delivery-visual img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.paper-delivery-visual figcaption { padding-top: 13px; }

.paper-delivery-route {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  position: relative;
  padding: 0;
  margin-top: 54px;
  list-style: none;
}

.paper-delivery-route::before {
  position: absolute;
  top: 24px;
  right: 12.5%;
  left: 12.5%;
  height: 2px;
  background: var(--paper-wine);
  transform: scaleX(0);
  transform-origin: left;
  content: "";
  transition: transform 1100ms var(--ease-out);
}

.paper-delivery-route.is-visible::before { transform: scaleX(1); }

.paper-delivery-route li {
  z-index: 1;
  display: grid;
  justify-items: center;
  gap: 10px;
  text-align: center;
}

.paper-delivery-route b {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border: 1px solid var(--paper-wine);
  border-radius: 50%;
  color: var(--paper-wine);
  background: var(--paper-white);
  font: 11px var(--font-sans);
}

.paper-delivery-route span { font-size: 15px; }

/* 12 — ledger */
.paper-proof {
  padding: clamp(100px, 11vw, 160px) 0;
  background:
    repeating-linear-gradient(to bottom, transparent 0 43px, rgba(23,21,18,0.08) 43px 44px),
    var(--paper-cream);
}

.paper-proof-layout {
  grid-template-columns: minmax(260px, 0.72fr) minmax(0, 1.28fr);
  gap: clamp(44px, 8vw, 120px);
}

.paper-proof-lead {
  padding: 52px 26px 24px;
  border: 1px solid var(--paper-rule);
  background: rgba(250,248,242,0.82);
}

.paper-proof-lead h2 { line-height: 1.04; }

.paper-proof-lead h2.paper-proof-title {
  font-size: clamp(38px, 3.5vw, 50px);
}

.paper-proof-title > span {
  white-space: nowrap;
}
.paper-proof-lead > p:last-child { line-height: 1.9; }

.paper-records {
  border-top: 3px double var(--paper-ink);
  background: rgba(250,248,242,0.4);
}

.paper-records div {
  min-height: 156px;
  padding: 24px 18px;
  border-bottom: 1px solid var(--paper-ink);
}

.paper-records dt {
  color: var(--paper-wine);
  font-variant-numeric: tabular-nums;
}

/* 13 — perforated FAQ */
.paper-faq {
  padding: clamp(105px, 11vw, 170px) 0;
  background: #d6cfc3;
}

.paper-faq-layout {
  display: grid;
  grid-template-columns: minmax(250px, 0.62fr) minmax(0, 1.38fr);
  gap: clamp(42px, 8vw, 120px);
  align-items: start;
}

.paper-faq header {
  position: sticky;
  top: 110px;
}

.paper-faq header h2 { margin-bottom: 26px; }

.paper-faq-list {
  position: relative;
  padding: 20px 26px 20px 54px;
  background: var(--paper-white);
  box-shadow: var(--paper-shadow);
}

.paper-faq-list::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 22px;
  border-left: 2px dashed rgba(127,39,50,0.55);
  content: "";
}

.paper-faq details {
  border-bottom: 1px solid var(--paper-rule);
}

.paper-faq summary {
  position: relative;
  min-height: 72px;
  padding: 23px 52px 20px 0;
  cursor: pointer;
  font-size: clamp(18px, 2vw, 24px);
  list-style: none;
}

.paper-faq summary::-webkit-details-marker { display: none; }
.paper-faq summary::after {
  position: absolute;
  top: 22px;
  right: 4px;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border: 1px solid var(--paper-ink);
  border-radius: 50%;
  content: "+";
  font-family: var(--font-sans);
  transition: transform 200ms ease, color 200ms ease, border-color 200ms ease;
}

.paper-faq details[open] summary::after {
  color: var(--paper-wine);
  border-color: var(--paper-wine);
  transform: rotate(45deg);
}

.paper-faq details p {
  max-width: 48em;
  padding: 0 52px 25px 0;
  color: var(--paper-muted);
  line-height: 1.9;
}

/* 14 — letter */
.paper-cta {
  overflow: hidden;
  padding: clamp(90px, 10vw, 150px) 0;
  background: var(--paper-wine);
}

.paper-cta::before,
.paper-cta::after {
  position: absolute;
  width: 36vw;
  height: 36vw;
  border: 1px solid rgba(250,248,242,0.28);
  border-radius: 50%;
  content: "";
}

.paper-cta::before { top: -22vw; left: -10vw; }
.paper-cta::after { right: -12vw; bottom: -24vw; }

.paper-letter {
  max-width: 980px;
  padding: clamp(68px, 8vw, 110px) clamp(30px, 9vw, 130px);
  border: 0;
  background:
    linear-gradient(135deg, transparent 49.7%, rgba(23,21,18,0.08) 50%, transparent 50.3%),
    var(--paper-white);
  box-shadow: 0 30px 70px rgba(23, 21, 18, 0.28);
  animation: none;
  transform: rotate(-0.5deg);
}

.paper-letter::before {
  position: absolute;
  top: 32px;
  right: 38px;
  width: 72px;
  height: 88px;
  border: 2px solid var(--paper-wine);
  content: "余白\A編集室";
  white-space: pre;
  display: grid;
  place-items: center;
  color: var(--paper-wine);
  font-size: 12px;
  line-height: 1.5;
  text-align: center;
  transform: rotate(4deg);
}

.paper-letter h2 {
  max-width: none;
  font-size: clamp(44px, 5vw, 68px);
  line-height: 1.06;
}

.paper-letter h2.paper-cta-title {
  max-width: none;
  font-size: clamp(44px, 4.6vw, 62px);
  line-height: 1.12;
}

.paper-cta-title > span {
  display: block;
  white-space: nowrap;
}

.paper-letter > p:not(.paper-running) { line-height: 1.9; }

/* Section-specific reveal language */
.paper-page [data-reveal="page"] { transform: rotateY(-7deg) translateX(24px); transform-origin: right center; }
.paper-page [data-reveal="book"] { opacity: 0; transform: translateY(60px) rotate(0); }
.paper-page [data-reveal="rule"] { opacity: 0; transform: translateX(-22px); }
.paper-page [data-reveal="stamp"] { opacity: 0; transform: scale(1.22) rotate(8deg); }
.paper-page [data-reveal="spread"] { opacity: 0; transform: translateY(35px) rotate(-2deg) scale(0.94); }
.paper-page [data-reveal="mask"],
.paper-page [data-reveal="map"] {
  opacity: 1;
  clip-path: none;
  transform: none;
}

.paper-page [data-reveal="mask"] img,
.paper-page [data-reveal="map"] img {
  clip-path: inset(0 0 100% 0);
  transform: scale(1.025);
  transition:
    clip-path 900ms var(--ease-out) var(--reveal-delay, 0ms),
    transform 1100ms var(--ease-out) var(--reveal-delay, 0ms);
}

.paper-page [data-reveal="map"] img { clip-path: inset(0 100% 0 0); }
.paper-page [data-reveal="mask"].is-visible img,
.paper-page [data-reveal="map"].is-visible img { clip-path: inset(0); transform: none; }
.paper-page [data-reveal="count"] { opacity: 0; transform: translateY(20px); }
.paper-page [data-reveal="letter"] { opacity: 0; transform: translateY(34px) rotate(-2deg); }

.paper-page [data-reveal].is-visible {
  opacity: 1;
  transform: none;
  clip-path: inset(0 0 0 0);
  filter: none;
}

.paper-page [data-reveal="book"].is-visible.paper-book--red { transform: rotate(-4deg) translateY(30px); }
.paper-page [data-reveal="book"].is-visible.paper-book--cream { transform: rotate(1.5deg) translateY(-20px); }
.paper-page [data-reveal="book"].is-visible.paper-book--ink { transform: rotate(4deg) translateY(44px); }
.paper-page [data-reveal="letter"].is-visible { transform: rotate(-0.5deg); }

@media (max-width: 1100px) {
  .paper-nav .paper-nav-menu a { padding-inline: 7px; font-size: 10px; }
  .paper-interview-layout { grid-template-columns: minmax(160px, 0.42fr) minmax(270px, 0.7fr) minmax(0, 1fr); gap: 24px; }
  .paper-studio-layout { grid-template-columns: minmax(280px, 0.78fr) minmax(240px, 0.68fr) minmax(260px, 1fr); gap: 24px; }
}

@media (max-width: 900px) {
  .paper-page main > section { scroll-margin-top: 76px; }

  .paper-nav {
    --nav-height: 68px;
    z-index: 80;
  }

  .paper-nav-toggle { display: inline-grid; place-items: center; }

  .paper-nav .paper-nav-menu {
    position: fixed;
    z-index: 79;
    inset: var(--nav-height) 0 0;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-rows: repeat(4, minmax(0, 1fr));
    gap: 0;
    width: 100%;
    height: calc(100dvh - var(--nav-height));
    padding: clamp(18px, 5vw, 40px);
    overflow-y: auto;
    background: var(--paper-ink);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-12px);
    transition: opacity 220ms ease, transform 220ms ease, visibility 220ms;
  }

  .paper-nav .paper-nav-menu.is-open,
  .paper-nav .paper-nav-menu.is-menu-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: none;
  }

  .paper-nav .paper-nav-menu a,
  .paper-page .paper-nav .paper-nav-menu a:nth-child(-n+2) {
    display: grid;
    place-items: center;
    min-height: 72px;
    border: 0;
    border-right: 1px solid rgba(250,248,242,0.22);
    border-bottom: 1px solid rgba(250,248,242,0.22);
    border-radius: 0;
    color: var(--paper-white);
    background: transparent;
    font: 500 clamp(17px, 4vw, 24px) Georgia, serif;
  }

  .paper-nav .paper-nav-menu a:nth-child(even) { border-right: 0; }
  .paper-nav .paper-nav-menu a:nth-last-child(-n+2) { border-bottom: 0; }
  .paper-nav .paper-nav-menu a::before { right: 22%; bottom: 25%; left: 22%; background: #c89499; }
  .paper-nav .paper-nav-menu a:hover,
  .paper-nav .paper-nav-menu a.is-active,
  .paper-nav .paper-nav-menu a[aria-current="location"] { color: #f2d9dc; background: rgba(127,39,50,0.22); transform: none; }
  .paper-nav-open { overflow: hidden; }

  .paper-spread,
  .paper-columns,
  .paper-project-layout,
  .paper-workshop-layout,
  .paper-archive-layout,
  .paper-materials-layout,
  .paper-interview-layout,
  .paper-studio-layout,
  .paper-delivery-layout,
  .paper-proof-layout,
  .paper-faq-layout {
    grid-template-columns: 1fr;
  }

  .paper-spread::after { top: 50%; right: 0; bottom: auto; left: 0; width: auto; height: 32px; transform: translateY(-50%); background: linear-gradient(transparent, rgba(23,21,18,0.1), transparent); }
  .paper-leaf { min-height: auto; }
  .paper-leaf--title { min-height: 610px; }
  .paper-leaf--image img { min-height: 0; height: auto; aspect-ratio: 4 / 3; }

  .paper-manifesto::before { display: none; }
  .paper-margin-notes { margin-top: 0; }

  .paper-section-intro,
  .paper-archive-head { grid-template-columns: 1fr; }

  .paper-section-intro h2 span,
  .paper-archive-head h2 span { white-space: normal; }

  .paper-book-stack { display: grid; grid-template-columns: 1fr; min-height: 0; gap: 24px; }
  .paper-book,
  .paper-book--red,
  .paper-book--cream,
  .paper-book--ink,
  .paper-page [data-reveal="book"].is-visible.paper-book--red,
  .paper-page [data-reveal="book"].is-visible.paper-book--cream,
  .paper-page [data-reveal="book"].is-visible.paper-book--ink {
    grid-column: 1;
    grid-row: auto;
    min-height: 330px;
    transform: none;
  }

  .paper-project-visual,
  .paper-interview-visual { transform: none; }
  .paper-archive-main img { min-height: 0; aspect-ratio: 16 / 10; }

  .paper-interview-note { width: min(86%, 440px); min-height: 330px; }
  .paper-interview-quote { max-width: 680px; }
  .paper-interview-visual img { min-height: 0; aspect-ratio: 16 / 10; }

  .paper-studio-visual { transform: none; }
  .paper-studio-visual img { min-height: 0; aspect-ratio: 16 / 10; }

  .paper-delivery-copy,
  .paper-faq header { position: static; }
  .paper-delivery-route { margin-top: 26px; }

  .paper-letter { transform: none; }
  .paper-page [data-reveal="letter"].is-visible { transform: none; }
  .paper-studio h2 span:first-child { white-space: normal; }
}

@media (max-width: 600px) {
  .paper-nav .template-nav__inner { width: calc(100% - 24px); }
  .paper-nav .paper-mark { min-width: 0; font-size: 13px; }
  .paper-nav .paper-nav-menu { padding: 12px; }

  .paper-page h1 span,
  .paper-page h2 span { display: inline; }

  .paper-page h1 span + span::before,
  .paper-page h2 span + span::before { content: " "; }

  .paper-page h2.paper-workshop-title > span { display: block; }
  .paper-page h2.paper-workshop-title > span + span::before { content: none; }
  .paper-page h2.paper-delivery-title > span { display: block; }
  .paper-page h2.paper-delivery-title > span + span::before { content: none; }
  .paper-page h2.paper-proof-title > span { display: block; }
  .paper-page h2.paper-proof-title > span + span::before { content: none; }

  .paper-hero { padding-top: 18px; }
  .paper-leaf--title { min-height: 560px; padding: 38px 24px 54px; }
  .paper-leaf--image { padding: 24px 20px 48px 28px; }
  .paper-running { left: 24px; }
  .paper-title-block h1 { max-width: 9ch; font-size: clamp(42px, 13vw, 56px); }
  .paper-title-block > p:last-of-type { font-size: 15px; }
  .paper-actions { gap: 10px; }

  .paper-section-intro h2,
  .paper-archive-head h2,
  .paper-materials-copy h2,
  .paper-studio h2,
  .paper-delivery-copy h2,
  .paper-faq h2,
  .paper-project-copy h2 { font-size: clamp(36px, 11vw, 50px); }

  .paper-section-intro h2,
  .paper-archive-head h2 { font-size: clamp(34px, 9.2vw, 40px); }

  .paper-section-intro h2 span,
  .paper-archive-head h2 span { display: block; }

  .paper-section-intro h2 span + span::before,
  .paper-archive-head h2 span + span::before { content: none; }

  .paper-columns { gap: 32px; }
  .paper-body-copy { font-size: 16px; }
  .paper-body-copy blockquote { font-size: 20px; }
  .paper-margin-notes { grid-template-columns: 1fr; }

  .paper-contents-head { grid-template-columns: 1fr auto; }
  .paper-contents-head h2 { font-size: clamp(36px, 11vw, 50px); }
  .paper-toc li { grid-template-columns: 50px minmax(0, 1fr) 24px; gap: 10px; }
  .paper-toc h3 { font-size: 18px; }
  .paper-toc p { font-size: 13px; line-height: 1.7; }

  .paper-project-facts { grid-template-columns: 1fr; }
  .paper-project-visual { padding: 10px 10px 40px; }

  .paper-archive-list { grid-template-columns: 1fr; }
  .paper-archive-list article,
  .paper-archive-list article:nth-child(2),
  .paper-archive-list article:nth-child(3),
  .paper-archive-list article:nth-child(4) { min-height: 190px; transform: none; }

  .paper-materials-copy { padding-left: 18px; }
  .paper-materials-visual { padding: 10px 10px 40px; border-width: 9px; }
  .paper-materials .visual-pair--paper { margin-top: 68px; }

  .paper-interview-note { width: 92%; }
  .paper-interview-quote blockquote { font-size: clamp(28px, 8vw, 38px); }
  .paper-interview-visual { padding: 9px 9px 38px; }

  .paper-delivery-route { grid-template-columns: repeat(2, 1fr); gap: 28px 10px; }
  .paper-delivery-route::before { display: none; }

  .paper-records div { min-height: 130px; }
  .paper-records dt { font-size: clamp(46px, 16vw, 72px); }

  .paper-faq-list { padding: 12px 16px 12px 36px; }
  .paper-faq-list::before { left: 15px; }
  .paper-faq summary { padding-right: 42px; font-size: 18px; }
  .paper-faq details p { padding-right: 18px; font-size: 14px; }

  .paper-letter { padding: 78px 26px 104px; }
  .paper-letter::before { top: 20px; right: 22px; width: 58px; height: 70px; font-size: 10px; }
  .paper-letter h2 { max-width: 11ch; font-size: clamp(38px, 11vw, 52px); }
  .paper-letter h2.paper-cta-title { max-width: none; font-size: clamp(32px, 8.7vw, 38px); }
  .paper-page h2.paper-cta-title > span { display: block; }
  .paper-page h2.paper-cta-title > span + span::before { content: none; }
  .paper-sign { left: 26px; right: auto; bottom: 30px; }
}

@media (prefers-reduced-motion: reduce) {
  .paper-page [data-reveal],
  .paper-page [data-reveal].is-visible,
  .paper-page [data-reveal="book"].is-visible.paper-book--red,
  .paper-page [data-reveal="book"].is-visible.paper-book--cream,
  .paper-page [data-reveal="book"].is-visible.paper-book--ink,
  .paper-page [data-reveal="letter"].is-visible {
    opacity: 1 !important;
    transform: none !important;
    clip-path: inset(0 0 0 0) !important;
    filter: none !important;
    animation: none !important;
    transition: none !important;
  }

  .paper-toc li::after,
  .paper-delivery-route::before,
  .paper-nav-menu,
  .paper-nav-menu a::before,
  .paper-page [data-reveal="mask"] img,
  .paper-page [data-reveal="map"] img,
  .paper-nav-toggle span {
    transition: none !important;
  }

  .paper-toc li::after,
  .paper-delivery-route::before { transform: scaleX(1); }

  .paper-page [data-reveal="mask"] img,
  .paper-page [data-reveal="map"] img { clip-path: inset(0); transform: none; }
}