:root {
  --paper: #F4E8C9;
  --ink: #2C241B;
  --persimmon: #B85F3B;
  --honey: #D9A441;
  --plum: #5F556B;
  --ivory: #FFF7DE;
  --olive: #6F7A45;
  --teak: #6E4728;
  --display: "Cormorant Garamond", Georgia, serif;
  --body: "Libre Baskerville", Georgia, serif;
  --jp: "Noto Serif JP", "Hiragino Mincho ProN", serif;
  --stamp: "Fraunces", Georgia, serif;
}

* { box-sizing: border-box; }

html,
body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
}

body {
  cursor: grab;
  background:
    linear-gradient(90deg, rgba(110, 71, 40, .16) 0 1px, transparent 1px 12vw),
    radial-gradient(circle at 13% 18%, rgba(217, 164, 65, .24), transparent 30vw),
    repeating-linear-gradient(45deg, rgba(111, 122, 69, .055) 0 2px, transparent 2px 20px),
    #F4E8C9;
}

body.is-dragging { cursor: grabbing; }

.paper-grain,
.dust-field {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 12;
}

.paper-grain {
  opacity: .28;
  background-image:
    radial-gradient(circle at 12% 17%, rgba(44, 36, 27, .14) 0 1px, transparent 1px),
    radial-gradient(circle at 78% 61%, rgba(110, 71, 40, .12) 0 1px, transparent 1px),
    radial-gradient(circle at 45% 32%, rgba(255, 247, 222, .8) 0 1px, transparent 1px);
  background-size: 33px 37px, 47px 41px, 19px 23px;
  mix-blend-mode: multiply;
}

.dust-field span {
  position: absolute;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: rgba(255, 247, 222, .86);
  box-shadow: 0 0 12px rgba(217, 164, 65, .9);
  animation: dustDrift var(--speed) ease-in-out infinite alternate;
}

@keyframes dustDrift {
  from { transform: translate3d(0, 0, 0); opacity: .15; }
  to { transform: translate3d(var(--dx), var(--dy), 0); opacity: .72; }
}

.reading-lamp {
  position: fixed;
  top: 28px;
  right: 42px;
  width: 260px;
  height: 260px;
  z-index: 20;
  pointer-events: auto;
}

.lamp-halo {
  position: absolute;
  inset: -90px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(217, 164, 65, .42), rgba(255, 247, 222, .24) 34%, rgba(217, 164, 65, .08) 55%, transparent 73%);
  filter: blur(2px);
  transition: transform .7s ease, opacity .7s ease;
}

.lamp-crescent {
  position: absolute;
  top: 40px;
  right: 56px;
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: var(--honey);
  box-shadow: 0 0 0 9px rgba(255, 247, 222, .42), 0 0 44px rgba(217, 164, 65, .78);
  z-index: 2;
}

.lamp-crescent::after {
  content: "";
  position: absolute;
  top: -3px;
  right: -14px;
  width: 86px;
  height: 92px;
  border-radius: 50%;
  background: #F4E8C9;
}

.reading-lamp:hover .lamp-halo { transform: scale(1.14); opacity: 1; }

.progress-rail {
  position: fixed;
  left: 42px;
  bottom: 34px;
  width: 210px;
  height: 5px;
  border-radius: 99px;
  background: rgba(44, 36, 27, .18);
  z-index: 25;
  overflow: hidden;
}

.progress-rail span {
  display: block;
  height: 100%;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, #B85F3B, #D9A441);
}

.archive-stage {
  width: 100vw;
  height: 100vh;
  overflow: hidden;
}

.archive-rail {
  height: 100vh;
  display: flex;
  align-items: stretch;
  will-change: transform;
  transform: translate3d(0, 0, 0);
}

.shelf-bay {
  position: relative;
  flex: 0 0 100vw;
  height: 100vh;
  padding: 8vh 8vw;
  overflow: hidden;
  border-right: 1px solid rgba(110, 71, 40, .28);
}

.bay-cards { flex-basis: 116vw; }
.bay-window { flex-basis: 118vw; }
.bay-margins { flex-basis: 94vw; }
.bay-seal { flex-basis: 96vw; }

.shelf-bay::before,
.shelf-bay::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  background: rgba(110, 71, 40, .34);
}

.shelf-bay::before { top: 18vh; }
.shelf-bay::after { bottom: 16vh; }

.bay-number,
.vertical-label,
.bookplate,
.catalog,
.stamp,
.window-caption,
.final-stamp,
.instruction-note {
  font-family: var(--stamp);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--persimmon);
}

.bay-number {
  position: absolute;
  top: 7vh;
  left: 8vw;
  font-family: var(--jp);
  font-size: 13px;
}

.desk-panel {
  position: relative;
  width: min(760px, 68vw);
  margin-top: 10vh;
  padding: 7vh 5vw 8vh;
  border-radius: 30px 10px 36px 14px;
  background: linear-gradient(135deg, #FFF7DE, #F4E8C9 62%, rgba(217, 164, 65, .18));
  box-shadow: inset 0 0 0 1px rgba(110, 71, 40, .22), 0 34px 70px rgba(44, 36, 27, .22);
}

.desk-panel h1 {
  margin: 28px 0 18px;
  font-family: var(--display);
  font-size: clamp(74px, 12vw, 164px);
  line-height: .78;
  letter-spacing: .035em;
  font-weight: 700;
}

.opening-line {
  max-width: 560px;
  font-size: clamp(16px, 1.45vw, 22px);
  line-height: 1.9;
  color: rgba(44, 36, 27, .82);
}

.moon-diagram {
  display: flex;
  gap: 18px;
  margin-top: 38px;
}

.moon-diagram span,
.moon-phase-card span {
  width: 32px;
  height: 32px;
  border: 1px solid rgba(44, 36, 27, .5);
  border-radius: 50%;
  background: linear-gradient(90deg, var(--ink) 50%, transparent 50%), var(--ivory);
}

.moon-diagram span:nth-child(2) { background: linear-gradient(90deg, transparent 35%, var(--ink) 35% 65%, transparent 65%), var(--ivory); }
.moon-diagram span:nth-child(3) { background: var(--ivory); }
.moon-diagram span:nth-child(4) { background: linear-gradient(90deg, transparent 50%, var(--ink) 50%), var(--ivory); }
.moon-diagram span:nth-child(5) { background: var(--ink); }

.desk-silhouette {
  position: absolute;
  left: 18vw;
  right: 8vw;
  bottom: 8vh;
  height: 64px;
  border-radius: 32px 32px 9px 9px;
  background: linear-gradient(90deg, #6E4728, #2C241B);
  box-shadow: 0 18px 0 rgba(44, 36, 27, .18);
}

.desk-silhouette i {
  position: absolute;
  bottom: -120px;
  width: 18px;
  height: 122px;
  background: #6E4728;
  transform-origin: top;
}

.desk-silhouette i:nth-child(1) { left: 9%; transform: rotate(5deg); }
.desk-silhouette i:nth-child(2) { left: 54%; transform: rotate(-3deg); }
.desk-silhouette i:nth-child(3) { right: 10%; transform: rotate(-6deg); }

.brass-pin {
  position: absolute;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #FFF7DE, #D9A441 42%, #6E4728 100%);
  box-shadow: 0 2px 9px rgba(44, 36, 27, .32);
  transition: transform .4s ease;
}

.pin-a { top: 27vh; left: 10vw; }
.pin-b { bottom: 24vh; right: 18vw; }
.brass-pin:hover { transform: rotate(18deg) scale(1.25); }

.vertical-label {
  position: absolute;
  top: 15vh;
  left: 5vw;
  writing-mode: vertical-rl;
  font-size: 13px;
}

.card-fan {
  position: relative;
  height: 76vh;
  margin-left: 11vw;
  margin-top: 7vh;
}

.story-card {
  position: absolute;
  width: min(360px, 29vw);
  height: min(560px, 68vh);
  perspective: 1400px;
  outline: 0;
}

.card-one { left: 0; top: 5vh; transform: rotate(-8deg); }
.card-two { left: 27vw; top: 0; transform: rotate(3deg); }
.card-three { left: 53vw; top: 8vh; transform: rotate(10deg); }

.card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  transition: transform 1s cubic-bezier(.2, .72, .16, 1);
}

.story-card:hover .card-inner,
.story-card.is-flipped .card-inner { transform: rotateY(180deg); }

.card-face {
  position: absolute;
  inset: 0;
  padding: 34px 30px;
  backface-visibility: hidden;
  border-radius: 18px 6px 22px 8px;
  background:
    linear-gradient(90deg, rgba(110, 71, 40, .09) 0 1px, transparent 1px 100%),
    linear-gradient(180deg, #FFF7DE, #F4E8C9);
  background-size: 100% 31px, auto;
  box-shadow: inset 0 0 0 1px rgba(110, 71, 40, .27), inset 10px 0 0 rgba(217, 164, 65, .16), 0 28px 48px rgba(44, 36, 27, .25);
}

.card-face::before,
.card-face::after {
  content: "";
  position: absolute;
  width: 22px;
  height: 22px;
  border-top: 2px solid rgba(217, 164, 65, .72);
  border-left: 2px solid rgba(217, 164, 65, .72);
}

.card-face::before { top: 13px; left: 13px; }
.card-face::after { right: 13px; bottom: 13px; transform: rotate(180deg); }

.card-back { transform: rotateY(180deg); }
.card-back p { font-size: 20px; line-height: 1.75; margin-top: 74px; }

.story-card h2 {
  font-family: var(--display);
  font-size: 48px;
  line-height: .94;
  margin: 28px 0 18px;
}

.story-card p { font-size: 15px; line-height: 1.8; }
.catalog { font-size: 11px; }

.seal {
  display: grid;
  place-items: center;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 3px double #B85F3B;
  color: #B85F3B;
  font-family: var(--jp);
  font-size: 40px;
}

.seal.olive { border-color: #6F7A45; color: #6F7A45; }
.seal.persimmon { color: #B85F3B; }

.bamboo-specimen {
  height: 230px;
  position: relative;
  margin-top: 30px;
}

.bamboo-specimen i,
.bamboo-layer i {
  position: absolute;
  bottom: 0;
  width: 7px;
  border-radius: 7px;
  background: #6F7A45;
  transform-origin: bottom;
}

.bamboo-specimen i:nth-child(1) { left: 36%; height: 220px; transform: rotate(-7deg); }
.bamboo-specimen i:nth-child(2) { left: 51%; height: 180px; transform: rotate(9deg); }
.bamboo-specimen i:nth-child(3) { left: 61%; height: 145px; transform: rotate(-14deg); }
.bamboo-specimen i::after,
.bamboo-layer i::after {
  content: "";
  position: absolute;
  top: 36px;
  left: 2px;
  width: 62px;
  height: 15px;
  border-radius: 100% 0;
  background: rgba(111, 122, 69, .72);
  transform: rotate(-28deg);
}

.moon-phase-card { display: flex; gap: 22px; margin: 82px 0 98px; }
.moon-phase-card span:nth-child(2) { background: var(--ivory); }
.moon-phase-card span:nth-child(3) { background: var(--ink); }

.flower-specimen {
  position: relative;
  height: 260px;
  margin-top: 18px;
}

.flower-specimen::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 32px;
  width: 4px;
  height: 210px;
  background: rgba(111, 122, 69, .65);
  transform: rotate(5deg);
}

.flower-specimen span {
  position: absolute;
  width: 58px;
  height: 76px;
  border-radius: 50% 50% 48% 48%;
  background: rgba(95, 85, 107, .18);
  border: 1px solid rgba(95, 85, 107, .42);
}

.flower-specimen span:nth-child(1) { left: 42%; top: 20px; }
.flower-specimen span:nth-child(2) { left: 25%; top: 79px; transform: rotate(-26deg); }
.flower-specimen span:nth-child(3) { right: 20%; top: 92px; transform: rotate(31deg); }
.flower-specimen span:nth-child(4) { left: 45%; top: 148px; transform: rotate(12deg); }

.instruction-note {
  position: absolute;
  bottom: 9vh;
  left: 20vw;
  font-size: 12px;
  color: rgba(184, 95, 59, .8);
}

.window-frame {
  position: relative;
  height: 68vh;
  margin: 8vh 6vw 0 0;
  border-radius: 34px 12px 34px 12px;
  border: 16px solid #6E4728;
  background: linear-gradient(90deg, rgba(255, 247, 222, .84), rgba(244, 232, 201, .45)), #FFF7DE;
  box-shadow: inset 0 0 0 1px rgba(44, 36, 27, .28), 0 35px 80px rgba(44, 36, 27, .24);
  overflow: hidden;
}

.bamboo-layer {
  position: absolute;
  inset: 0;
  transition: transform .4s ease-out;
}

.layer-back { opacity: .28; }
.layer-front { opacity: .62; }
.bamboo-layer i:nth-child(1) { left: 12%; height: 80%; transform: rotate(-5deg); }
.bamboo-layer i:nth-child(2) { left: 34%; height: 70%; transform: rotate(7deg); }
.bamboo-layer i:nth-child(3) { left: 63%; height: 88%; transform: rotate(-3deg); }
.bamboo-layer i:nth-child(4) { left: 82%; height: 73%; transform: rotate(9deg); }

.pressed-flower {
  position: absolute;
  width: 130px;
  height: 130px;
  border-radius: 50%;
  opacity: .42;
  background: radial-gradient(circle, rgba(184, 95, 59, .28), transparent 62%);
}

.flower-a { left: 22%; top: 22%; }
.flower-b { right: 17%; bottom: 18%; background: radial-gradient(circle, rgba(95, 85, 107, .24), transparent 62%); }

.book-spines {
  position: absolute;
  right: 8%;
  bottom: 0;
  display: flex;
  align-items: flex-end;
  gap: 10px;
}

.book-spines span {
  width: 34px;
  height: var(--h);
  border-radius: 6px 6px 0 0;
  background: var(--c);
  box-shadow: inset 0 0 0 1px rgba(44, 36, 27, .18);
}

.book-spines span:nth-child(1) { --h: 210px; --c: #6F7A45; }
.book-spines span:nth-child(2) { --h: 160px; --c: #B85F3B; }
.book-spines span:nth-child(3) { --h: 245px; --c: #6E4728; }
.book-spines span:nth-child(4) { --h: 185px; --c: #FFF7DE; }
.book-spines span:nth-child(5) { --h: 228px; --c: #5F556B; }
.book-spines span:nth-child(6) { --h: 135px; --c: #D9A441; }

.window-caption {
  position: absolute;
  left: 34px;
  bottom: 26px;
  padding: 12px 18px;
  border-radius: 999px;
  background: rgba(255, 247, 222, .76);
  font-size: 12px;
}

.side-note {
  position: absolute;
  right: 9vw;
  top: 18vh;
  width: 250px;
  padding: 28px;
  background: #FFF7DE;
  border-left: 6px solid #D9A441;
  box-shadow: 0 20px 40px rgba(44, 36, 27, .18);
  font-style: italic;
  line-height: 1.8;
}

.margin-board {
  position: relative;
  width: min(840px, 70vw);
  min-height: 70vh;
  margin: 7vh auto 0;
  padding: 7vh 6vw;
  background: #FFF7DE;
  border-radius: 14px 42px 18px 32px;
  box-shadow: inset 0 0 0 1px rgba(110, 71, 40, .24), 0 34px 75px rgba(44, 36, 27, .22);
}

.stamp {
  display: inline-block;
  padding: 10px 14px;
  border: 2px solid #B85F3B;
  transform: rotate(-3deg);
  font-size: 12px;
}

blockquote {
  margin: 9vh 0 0;
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(44px, 6vw, 92px);
  line-height: .98;
  color: #2C241B;
}

.rotated-caption {
  position: absolute;
  right: -72px;
  top: 42%;
  transform: rotate(90deg);
  font-family: var(--jp);
  color: #5F556B;
  font-size: 14px;
}

.annotation {
  position: absolute;
  padding: 12px 15px;
  background: rgba(244, 232, 201, .86);
  border-radius: 4px;
  font-size: 13px;
  box-shadow: 0 12px 24px rgba(44, 36, 27, .12);
}

.annotation-one { left: 5vw; bottom: 5vh; transform: rotate(2deg); }
.annotation-two { right: 5vw; bottom: 13vh; transform: rotate(-4deg); }

.drawn-note {
  position: absolute;
  right: 10%;
  top: 10%;
  width: 260px;
  fill: none;
  stroke: #6F7A45;
  stroke-width: 2;
  stroke-dasharray: 380;
  stroke-dashoffset: 380;
  animation: drawNote 5s ease forwards 1s;
}

@keyframes drawNote { to { stroke-dashoffset: 0; } }

.archive-seal {
  position: relative;
  width: min(660px, 72vh);
  height: min(660px, 72vh);
  margin: 8vh auto;
  display: grid;
  place-items: center;
  text-align: center;
}

.seal-ring {
  position: absolute;
  border-radius: 50%;
  border: 2px solid rgba(184, 95, 59, .72);
}

.ring-one { inset: 0; animation: slowSpin 24s linear infinite; }
.ring-two { inset: 68px; border-style: dashed; border-color: rgba(111, 122, 69, .72); animation: slowSpin 32s linear infinite reverse; }

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

.seal-cards span {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 92px;
  height: 142px;
  margin: -71px 0 0 -46px;
  border-radius: 10px;
  background: #FFF7DE;
  box-shadow: inset 0 0 0 1px rgba(110, 71, 40, .24), 0 12px 25px rgba(44, 36, 27, .14);
  transform: rotate(calc(var(--i) * 60deg)) translateY(-236px);
  transform-origin: center center;
}

.seal-cards span:nth-child(1) { --i: 0; }
.seal-cards span:nth-child(2) { --i: 1; }
.seal-cards span:nth-child(3) { --i: 2; }
.seal-cards span:nth-child(4) { --i: 3; }
.seal-cards span:nth-child(5) { --i: 4; }
.seal-cards span:nth-child(6) { --i: 5; }

.archive-seal h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(58px, 8vw, 110px);
  line-height: .82;
  z-index: 2;
}

.archive-seal p {
  position: absolute;
  bottom: 27%;
  max-width: 300px;
  line-height: 1.7;
  z-index: 2;
}

.final-stamp {
  position: absolute;
  bottom: 18%;
  padding: 10px 16px;
  border: 2px solid #B85F3B;
  color: #B85F3B;
  font-family: var(--jp);
  z-index: 2;
}

@media (max-width: 800px) {
  .shelf-bay { padding: 7vh 7vw; }
  .reading-lamp { right: -20px; top: -8px; transform: scale(.72); }
  .desk-panel { width: 84vw; }
  .card-fan { margin-left: 4vw; height: 78vh; }
  .story-card { width: 66vw; height: 55vh; }
  .card-one { left: 0; top: 5vh; }
  .card-two { left: 58vw; top: 14vh; }
  .card-three { left: 116vw; top: 5vh; }
  .bay-cards { flex-basis: 220vw; }
  .side-note { display: none; }
  .margin-board { width: 84vw; }
  .rotated-caption { display: none; }
}