:root {
  --paper-white: #FAF8EF;
  --rice-paper-shadow: #E8E1D2;
  --new-leaf: #A9D56F;
  --dew-blue: #BFE3EA;
  --young-stem: #4F7C55;
  --pollen-gold: #EBCB66;
  --ink-bark: #23271F;
  --petal-blush: #F2C9C1;
  --serif-display: "Cormorant Garamond", "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --jp-serif: "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --sans: "Manrope", "Avenir Next", "Helvetica Neue", Arial, sans-serif;
  --interface: "Instrument Sans", "Inter", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink-bark);
  background: var(--paper-white);
  font-family: var(--sans);
  overflow-x: hidden;
}

button, a { color: inherit; font: inherit; }

.paper-grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 10;
  opacity: .42;
  background-image:
    radial-gradient(circle at 18% 22%, rgba(79,124,85,.06) 0 1px, transparent 1.5px),
    radial-gradient(circle at 70% 44%, rgba(235,203,102,.08) 0 1px, transparent 1.5px),
    linear-gradient(92deg, rgba(232,225,210,.24), transparent 18%, rgba(255,255,255,.16) 54%, transparent 76%);
  background-size: 72px 72px, 96px 96px, 100% 100%;
  mix-blend-mode: multiply;
}

.edge-label {
  position: fixed;
  left: 22px;
  top: 22px;
  bottom: 22px;
  width: 54px;
  z-index: 20;
  display: grid;
  grid-template-rows: auto 1fr auto;
  justify-items: center;
  color: var(--young-stem);
}

.edge-title, .edge-room {
  writing-mode: vertical-rl;
  font-family: var(--interface);
  font-size: 10px;
  letter-spacing: .22em;
  text-transform: uppercase;
}

.edge-room { min-height: 135px; text-align: right; transition: opacity .5s ease; }

.stem-progress {
  position: relative;
  width: 1px;
  margin: 28px 0;
  background: var(--rice-paper-shadow);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 4vh 0;
}

.stem-fill {
  position: absolute;
  top: 0;
  left: 0;
  width: 1px;
  height: 0%;
  background: var(--new-leaf);
  transition: height .6s ease;
}

.stem-node {
  position: relative;
  width: 13px;
  height: 13px;
  border: 1px solid var(--young-stem);
  border-radius: 50%;
  background: var(--paper-white);
  padding: 0;
  cursor: pointer;
  transition: background .4s ease, transform .4s ease;
}

.stem-node span {
  position: absolute;
  left: 18px;
  top: -4px;
  font-family: var(--interface);
  font-size: 9px;
  letter-spacing: .12em;
  opacity: 0;
  transition: opacity .3s ease;
}

.stem-node.is-active { background: var(--new-leaf); transform: scale(1.22); }
.stem-node.is-active span, .stem-node:hover span { opacity: 1; }

.spring-gallery { margin-left: 84px; }

.gallery-room {
  min-height: 100vh;
  position: relative;
  overflow: hidden;
  background: var(--paper-white);
  border-bottom: 18px solid rgba(232,225,210,.42);
}

.gallery-room::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, transparent 0 54%, rgba(232,225,210,.28) 54.12%, transparent 54.34%),
    linear-gradient(0deg, transparent 0 66%, rgba(232,225,210,.35) 66.1%, transparent 66.25%);
  opacity: .55;
  pointer-events: none;
}

.tokonoma {
  position: absolute;
  left: 9vw;
  top: 12vh;
  width: 42px;
  height: 62vh;
  border-left: 1px solid var(--rice-paper-shadow);
  border-right: 1px solid rgba(232,225,210,.62);
  background: linear-gradient(180deg, rgba(232,225,210,.15), transparent 48%, rgba(191,227,234,.13));
}

.tokonoma.right { left: auto; right: 12vw; }

.room-morning { display: grid; place-items: center; }

.sun-window {
  position: absolute;
  right: 18vw;
  top: 18vh;
  width: clamp(80px, 12vw, 160px);
  height: 55vh;
  background: linear-gradient(180deg, rgba(191,227,234,.78), rgba(191,227,234,.16));
  border: 1px solid rgba(79,124,85,.12);
  box-shadow: 0 32px 80px rgba(191,227,234,.42), inset 12px 0 30px rgba(250,248,239,.36);
  transform: translateY(var(--scroll-drift, 0px));
}

.accession-label {
  position: absolute;
  font-family: var(--interface);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  border: 1px solid var(--rice-paper-shadow);
  background: rgba(250,248,239,.74);
  box-shadow: 0 8px 26px rgba(35,39,31,.05);
}

.domain-tag {
  left: 24vw;
  bottom: 25vh;
  padding: 10px 14px;
}

.domain-tag span { display: block; margin-top: 5px; color: var(--young-stem); font-size: 8px; }

.whisper-title {
  position: absolute;
  right: 27vw;
  bottom: 18vh;
  margin: 0;
  font-family: var(--serif-display);
  font-size: clamp(42px, 8vw, 132px);
  line-height: .88;
  letter-spacing: .045em;
  font-weight: 400;
  opacity: .075;
  color: var(--young-stem);
}

.season-label {
  font-family: var(--jp-serif);
  color: var(--young-stem);
  letter-spacing: .24em;
  font-size: 13px;
}

.vertical-note { writing-mode: vertical-rl; position: absolute; right: 8vw; top: 16vh; }

.folded-corner {
  position: absolute;
  right: 0;
  top: 0;
  width: 145px;
  height: 145px;
  background: linear-gradient(135deg, rgba(232,225,210,.86) 0 49%, transparent 50%);
  filter: drop-shadow(-12px 12px 18px rgba(35,39,31,.06));
  transform-origin: 100% 0;
  animation: cornerLift 8s ease-in-out infinite;
}

.pollen {
  position: absolute;
  width: var(--size);
  height: var(--size);
  border-radius: 50%;
  background: var(--pollen-gold);
  left: var(--x);
  top: var(--y);
  opacity: var(--o);
  transform: translate3d(var(--mx, 0px), var(--my, 0px), 0);
  animation: pollenDrift var(--dur) ease-in-out infinite alternate;
}

.paper-shelf {
  position: absolute;
  left: 13vw;
  right: 18vw;
  top: 67vh;
  height: 1px;
  background: var(--young-stem);
  opacity: .55;
}

.ledger-object { position: absolute; inset: 0; transform: translateY(var(--scroll-drift, 0px)); }

.seed-packet {
  position: absolute;
  width: 180px;
  min-height: 245px;
  padding: 26px 22px;
  background: linear-gradient(180deg, rgba(250,248,239,.98), rgba(232,225,210,.34));
  border: 1px solid var(--rice-paper-shadow);
  box-shadow: 0 24px 46px rgba(35,39,31,.08);
  clip-path: polygon(0 6px, 8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 10px) 100%, 0 100%);
}

.seed-packet::before {
  content: "";
  position: absolute;
  inset: 54px 18px auto;
  height: 1px;
  background: repeating-linear-gradient(90deg, var(--rice-paper-shadow) 0 18px, transparent 18px 24px);
}

.packet-tall { left: 22vw; top: 31vh; transform: rotate(-2deg); }
.packet-small { left: 42vw; top: 43vh; min-height: 180px; transform: rotate(3deg); }
.packet-title { font-family: var(--interface); font-size: 9px; letter-spacing: .22em; text-transform: uppercase; color: var(--young-stem); }
.seed-packet strong { display: block; margin-top: 50px; font-family: var(--serif-display); font-size: 32px; font-weight: 400; line-height: .96; }
.seed-packet em { display: block; margin-top: 25px; font-size: 11px; line-height: 1.7; color: rgba(35,39,31,.62); }
.packet-pin { position: absolute; right: 18px; top: 20px; width: 12px; height: 12px; border-radius: 50%; background: var(--pollen-gold); }
.plus-pin { background: var(--new-leaf); }
.plus-pin::before, .plus-pin::after { content: ""; position: absolute; background: var(--young-stem); left: 50%; top: 50%; transform: translate(-50%, -50%); }
.plus-pin::before { width: 18px; height: 1px; }
.plus-pin::after { width: 1px; height: 18px; }

.paper-tabs { position: absolute; left: 59vw; top: 60vh; display: grid; gap: 7px; }
.paper-tabs span { padding: 7px 12px; background: rgba(250,248,239,.86); border-left: 2px solid var(--new-leaf); font-family: var(--interface); font-size: 10px; letter-spacing: .12em; text-transform: uppercase; }

.annotation-slip {
  position: absolute;
  max-width: 250px;
  padding: 14px 16px;
  background: rgba(250,248,239,.84);
  border: 1px solid var(--rice-paper-shadow);
  box-shadow: 0 20px 46px rgba(35,39,31,.06);
  font-size: 12px;
  line-height: 1.7;
}
.annotation-slip b { display: block; margin-bottom: 4px; font-family: var(--interface); font-size: 9px; letter-spacing: .2em; text-transform: uppercase; color: var(--young-stem); }
.ledger-slip { right: 20vw; top: 22vh; }
.room-title { position: absolute; left: 13vw; top: 13vh; margin: 0; font-family: var(--serif-display); font-weight: 400; font-size: clamp(48px, 8vw, 128px); letter-spacing: .035em; color: rgba(35,39,31,.72); }

.room-rain { background: linear-gradient(180deg, var(--paper-white), rgba(191,227,234,.18)); }
.rain-shadow { position: absolute; left: 18vw; top: 17vh; width: 42vw; height: 54vh; border: 1px solid rgba(79,124,85,.12); box-shadow: 38px 44px 0 rgba(232,225,210,.38); }
.dew-pane { position: absolute; border: 1px solid rgba(79,124,85,.18); background: rgba(191,227,234,.36); backdrop-filter: blur(2px); box-shadow: inset 18px 18px 60px rgba(250,248,239,.48), 0 32px 90px rgba(191,227,234,.32); transform: translateY(var(--scroll-drift, 0px)); }
.pane-back { left: 24vw; top: 16vh; width: 36vw; height: 45vh; opacity: .54; }
.pane-front { left: 32vw; top: 28vh; width: 38vw; height: 48vh; }
.droplet { position: absolute; border-radius: 50%; border: 1px solid rgba(79,124,85,.22); background: radial-gradient(circle at 30% 28%, rgba(250,248,239,.82), rgba(191,227,234,.26) 60%, rgba(79,124,85,.06)); animation: dewPulse 6s ease-in-out infinite; }
.d1 { width: 46px; height: 46px; left: 18%; top: 22%; }
.d2 { width: 22px; height: 22px; left: 70%; top: 18%; animation-delay: -1.8s; }
.d3 { width: 34px; height: 34px; left: 52%; top: 58%; animation-delay: -3s; }
.d4 { width: 14px; height: 14px; left: 29%; top: 73%; animation-delay: -4s; }
.hidden-phrase { position: absolute; right: 24px; bottom: 20px; font-family: var(--serif-display); font-size: 28px; color: rgba(79,124,85,.42); }
.ripple-stage { position: absolute; inset: 0; pointer-events: none; }
.ripple { position: absolute; width: 16px; height: 16px; border: 1px solid var(--dew-blue); border-radius: 50%; transform: translate(-50%, -50%) scale(0); opacity: .65; animation: rippleOut 2.4s ease-out forwards; }
.rain-note { position: absolute; right: 16vw; top: 19vh; }
.rain-slip { left: 16vw; bottom: 18vh; }

.room-petal { background: radial-gradient(circle at 66% 36%, rgba(242,201,193,.26), transparent 24%), var(--paper-white); }
.petal-frame { position: absolute; left: 19vw; top: 18vh; width: 42vw; height: 58vh; border: 1px solid var(--rice-paper-shadow); background: rgba(250,248,239,.46); }
.ruled-lines { position: absolute; inset: 0; background-image: repeating-linear-gradient(0deg, transparent 0 39px, rgba(232,225,210,.55) 40px); }
.plus-petal { position: absolute; right: -13vw; top: 8vh; width: clamp(180px, 28vw, 410px); height: clamp(260px, 38vw, 560px); background: radial-gradient(circle at 38% 30%, rgba(250,248,239,.88), transparent 18%), linear-gradient(145deg, var(--petal-blush), rgba(242,201,193,.28)); border-radius: 76% 24% 64% 36% / 58% 24% 76% 42%; box-shadow: -28px 36px 80px rgba(242,201,193,.22); transform: rotate(18deg) translateY(var(--scroll-drift, 0px)); }
.plus-petal::after { content: ""; position: absolute; left: 48%; top: 8%; width: 1px; height: 82%; background: linear-gradient(var(--young-stem), transparent); transform: rotate(8deg); opacity: .46; }
.petal-cross { position: absolute; left: 16%; bottom: 18%; width: 86px; height: 86px; }
.petal-cross::before, .petal-cross::after { content: ""; position: absolute; background: var(--young-stem); opacity: .62; left: 50%; top: 50%; transform: translate(-50%, -50%); }
.petal-cross::before { width: 86px; height: 1px; }
.petal-cross::after { width: 1px; height: 86px; }
.wall-title { position: absolute; right: 6vw; bottom: 6vh; margin: 0; font-family: var(--serif-display); font-weight: 400; font-size: clamp(70px, 14vw, 230px); letter-spacing: .04em; color: rgba(79,124,85,.10); }
.wall-title span { color: rgba(169,213,111,.28); }
.petal-slip { left: 13vw; bottom: 12vh; }
.petal-note { left: 11vw; right: auto; top: 20vh; }

.room-index { background: linear-gradient(180deg, var(--paper-white) 0 58%, rgba(169,213,111,.08)); }
.horizon-line { position: absolute; left: 10vw; right: 8vw; top: 68vh; height: 1px; background: linear-gradient(90deg, transparent, var(--young-stem), transparent); opacity: .45; }
.stem-drawing { position: absolute; left: 18vw; top: 22vh; width: 54vw; height: 52vh; fill: none; }
.draw-line { stroke: var(--young-stem); stroke-width: 1.5; stroke-linecap: round; stroke-dasharray: 720; stroke-dashoffset: 720; transition: stroke-dashoffset 2.8s ease; }
.draw-line.delay { stroke: var(--new-leaf); stroke-width: 1; transition-delay: .45s; }
.room-index.is-current .draw-line { stroke-dashoffset: 0; }
.index-labels span { position: absolute; left: var(--x); top: var(--y); padding: 7px 10px; border: 1px solid var(--rice-paper-shadow); background: rgba(250,248,239,.72); font-family: var(--interface); font-size: 10px; letter-spacing: .13em; text-transform: uppercase; color: var(--young-stem); }
.exit-slip { position: absolute; right: 13vw; bottom: 16vh; text-decoration: none; padding: 12px 16px; border: 1px solid var(--young-stem); background: rgba(250,248,239,.64); font-size: 11px; letter-spacing: .18em; text-transform: uppercase; transition: background .4s ease, transform .4s ease; }
.exit-slip:hover { background: var(--new-leaf); transform: translateY(-4px); }
.index-title { left: 11vw; top: 10vh; }
.closing-line { position: absolute; left: 14vw; bottom: 13vh; max-width: 430px; font-family: var(--serif-display); font-size: clamp(28px, 4vw, 62px); line-height: 1.02; color: rgba(35,39,31,.72); }

@keyframes pollenDrift { from { margin-top: -6px; margin-left: -2px; } to { margin-top: 12px; margin-left: 9px; } }
@keyframes cornerLift { 0%,100% { transform: rotate(0deg); } 50% { transform: rotate(-4deg); } }
@keyframes dewPulse { 0%,100% { transform: scale(1); opacity: .7; } 50% { transform: scale(1.14); opacity: .95; } }
@keyframes rippleOut { to { transform: translate(-50%, -50%) scale(12); opacity: 0; } }

@media (max-width: 760px) {
  .edge-label { left: 8px; width: 34px; }
  .spring-gallery { margin-left: 48px; }
  .room-title { left: 9vw; top: 9vh; }
  .tokonoma { left: 5vw; }
  .sun-window { right: 12vw; }
  .domain-tag { left: 12vw; }
  .seed-packet { width: 145px; }
  .packet-tall { left: 13vw; }
  .packet-small { left: 47vw; }
  .paper-tabs { left: 18vw; top: 72vh; }
  .annotation-slip { max-width: 210px; }
  .pane-front { left: 20vw; width: 62vw; }
  .pane-back { left: 12vw; width: 60vw; }
  .petal-frame { left: 10vw; width: 55vw; }
  .plus-petal { right: -28vw; }
}