:root {
  /* IBM Plex Serif** for a literary voice; Space Grotesk** sparingly for tiny interface coordinates. */
  --moon-clay: #E9E2D6;
  --warm-shadow: #C9BFAF;
  --graphite: #23252B;
  --lavender: #D8D3EA;
  --cinnabar: #B94B3F;
  --teal: #376C67;
  --chalk: #FAF7F0;
  --light-x: 42%;
  --light-y: 18%;
  --depth: 22px;
  --bevel: 10px;
  --state: 1;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  background: var(--moon-clay);
}

body {
  margin: 0;
  color: var(--graphite);
  font-family: "Noto Sans KR", sans-serif;
  background:
    radial-gradient(circle at var(--light-x) var(--light-y), rgba(250,247,240,.95), rgba(233,226,214,.62) 24%, transparent 48%),
    linear-gradient(135deg, var(--moon-clay), #d9d0c2 52%, var(--moon-clay));
  overflow-x: hidden;
}

body::after {
  content: "Serif** Grotesk**";
  display: none;
  font-family: "Serif**", "Grotesk**";
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 4;
  opacity: .28;
  background-image:
    radial-gradient(circle, rgba(35,37,43,.10) 0 1px, transparent 1.4px),
    radial-gradient(circle, rgba(250,247,240,.58) 0 1px, transparent 1.6px);
  background-size: 31px 37px, 47px 43px;
  mix-blend-mode: soft-light;
}

.surface-lamp {
  position: fixed;
  width: 46vmax;
  height: 46vmax;
  left: calc(var(--light-x) - 23vmax);
  top: calc(var(--light-y) - 23vmax);
  border-radius: 50%;
  pointer-events: none;
  z-index: 2;
  background: radial-gradient(circle, rgba(250,247,240,.55), rgba(216,211,234,.14) 36%, transparent 68%);
  filter: blur(16px);
  transition: left .25s ease, top .25s ease;
}

.paradox-chamber { position: relative; z-index: 1; }

.room {
  min-height: 100vh;
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: center;
  gap: clamp(24px, 5vw, 90px);
  padding: clamp(28px, 7vw, 92px);
  background:
    linear-gradient(117deg, rgba(250,247,240,.28), transparent 38%),
    radial-gradient(circle at calc(var(--light-x) + 8%) calc(var(--light-y) + 15%), rgba(216,211,234,.3), transparent 34%);
  isolation: isolate;
}

.room::after {
  content: "";
  position: absolute;
  inset: 6vh 5vw;
  border-radius: 44px;
  border: 1px solid rgba(250,247,240,.35);
  box-shadow: inset 16px 16px 38px rgba(201,191,175,.42), inset -18px -18px 42px rgba(250,247,240,.48);
  opacity: .5;
  pointer-events: none;
  z-index: -1;
  transform: rotate(calc((var(--state) - .5) * 1.4deg));
}

.opening {
  display: grid;
  grid-template-columns: 1fr;
  place-items: center;
  overflow: hidden;
}

.grain {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(96deg, transparent 0 17px, rgba(35,37,43,.025) 18px 19px, transparent 20px 42px);
  opacity: .52;
}

.opening-plane {
  position: relative;
  width: min(86vw, 1100px);
  aspect-ratio: 1.9 / 1;
  border-radius: clamp(34px, 7vw, 86px);
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, rgba(250,247,240,.22), rgba(201,191,175,.16));
  box-shadow:
    calc(var(--depth) * .8) calc(var(--depth) * .9) calc(var(--depth) * 2.2) rgba(156,145,131,.42),
    calc(var(--depth) * -.75) calc(var(--depth) * -.7) calc(var(--depth) * 1.8) rgba(250,247,240,.74),
    inset 1px 1px 1px rgba(250,247,240,.68),
    inset -14px -14px 32px rgba(201,191,175,.18);
}

.coord, .room-label, .engraved, .switch-label, .dispute, .glyph-pair {
  font-family: "Space Grotesk", sans-serif;
  letter-spacing: .18em;
  text-transform: uppercase;
  font-size: clamp(10px, .82vw, 13px);
}

.coord {
  position: absolute;
  top: 13%;
  color: rgba(55,108,103,.72);
}

.wordmark {
  margin: 0;
  font-family: "IBM Plex Serif", serif;
  font-weight: 500;
  font-size: clamp(58px, 14vw, 188px);
  letter-spacing: -.055em;
  color: var(--moon-clay);
  text-shadow:
    1px 1px 1px rgba(250,247,240,.7),
    -1px -1px 1px rgba(146,136,126,.38),
    calc((var(--light-x) - 50%) / -6) calc((var(--light-y) - 50%) / -8) 22px rgba(35,37,43,.22);
  filter: contrast(1.03);
}

.opening-note {
  position: absolute;
  bottom: 9vh;
  max-width: 360px;
  text-align: center;
  color: rgba(35,37,43,.58);
  line-height: 1.8;
}

.cinnabar-switch {
  position: absolute;
  right: 16%;
  bottom: 17%;
  border: 0;
  background: transparent;
  color: var(--graphite);
  display: flex;
  gap: 13px;
  align-items: center;
  cursor: pointer;
}

.switch-mark {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--cinnabar);
  box-shadow: 8px 8px 17px rgba(129,70,61,.28), -6px -6px 14px rgba(250,247,240,.7);
  transition: box-shadow .55s ease, transform .55s ease;
}

.cinnabar-switch.is-sunken .switch-mark {
  transform: scale(.88);
  box-shadow: inset 7px 7px 12px rgba(77,31,27,.42), inset -5px -5px 10px rgba(250,247,240,.34);
}

.seam-nav {
  position: fixed;
  z-index: 6;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  display: grid;
  gap: 22px;
}

.seam-line {
  position: absolute;
  top: -22px;
  bottom: -22px;
  left: 9px;
  width: 2px;
  background: linear-gradient(var(--chalk), var(--warm-shadow), var(--chalk));
  box-shadow: 1px 0 1px rgba(35,37,43,.18), -1px 0 1px rgba(250,247,240,.9);
}

.nav-dot {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 0;
  background: var(--moon-clay);
  box-shadow: 5px 5px 10px rgba(145,134,121,.42), -5px -5px 10px rgba(250,247,240,.85);
  cursor: pointer;
  position: relative;
}

.nav-dot.active { box-shadow: inset 5px 5px 9px rgba(145,134,121,.48), inset -4px -4px 8px rgba(250,247,240,.8); }
.nav-dot span { position: absolute; right: 30px; top: 1px; opacity: 0; white-space: nowrap; font: 11px "Space Grotesk", sans-serif; letter-spacing: .14em; text-transform: uppercase; transition: opacity .25s ease; }
.nav-dot:hover span { opacity: .72; }

.room-shell, .panel-inset, .time-slab, .truth-void, .final-seal {
  border-radius: clamp(30px, 5vw, 72px);
  background: linear-gradient(145deg, rgba(250,247,240,.38), rgba(201,191,175,.18));
  box-shadow: 28px 28px 62px rgba(155,144,130,.38), -26px -26px 56px rgba(250,247,240,.72), inset 1px 1px 1px rgba(250,247,240,.8);
}

.skew-left { transform: rotate(-2.8deg) translateY(3vh); }
.skew-right { transform: rotate(2.2deg) translateY(-2vh); }
.room-shell { min-height: 64vh; display: grid; place-items: center; position: relative; }
.room-label { color: var(--teal); position: absolute; top: 32px; left: 38px; }

.fragment { padding: clamp(30px, 5vw, 74px); position: relative; }
.fragment h2, .time-slab h2, .truth-statement {
  font-family: "IBM Plex Serif", serif;
  font-weight: 400;
  font-size: clamp(40px, 7vw, 112px);
  line-height: .94;
  letter-spacing: -.045em;
  margin: 0 0 28px;
}
.fragment p, .time-slab p, .truth-note { line-height: 1.9; color: rgba(35,37,43,.68); max-width: 520px; }
.dispute { color: var(--cinnabar); display: block; margin-top: 36px; text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 8px; }

.paradox-dial {
  width: clamp(230px, 34vw, 440px);
  aspect-ratio: 1;
  border-radius: 50%;
  position: relative;
  display: grid;
  place-items: center;
  font-family: "Space Grotesk", sans-serif;
}
.raised-dial {
  background: radial-gradient(circle at 37% 32%, var(--chalk), var(--moon-clay) 36%, var(--warm-shadow));
  box-shadow: 32px 32px 58px rgba(126,117,105,.42), -26px -26px 48px rgba(250,247,240,.86), inset 20px 20px 36px rgba(177,166,150,.32);
}
.dial-core { width: 42%; aspect-ratio: 1; border-radius: 50%; background: var(--moon-clay); box-shadow: inset 14px 14px 28px rgba(139,128,116,.38), inset -12px -12px 24px rgba(250,247,240,.82); }
.orbit { position: absolute; font-family: "Noto Sans KR", sans-serif; color: var(--teal); }
.orbit-mo { top: 17%; left: 25%; font-size: 42px; transform: rotate(-16deg); }
.orbit-sun { right: 22%; bottom: 19%; font-size: 36px; transform: rotate(11deg); }
.engraved { position: absolute; bottom: 19%; color: rgba(35,37,43,.42); }

.reverse-panel { transform: rotate(-1.4deg); box-shadow: inset 26px 26px 54px rgba(154,143,128,.36), inset -24px -24px 52px rgba(250,247,240,.64); }
.glyph-pair { color: var(--teal); display: block; margin-top: 30px; }
.folded-corridor { width: 78%; height: 70%; clip-path: polygon(8% 10%, 72% 0, 94% 45%, 66% 100%, 0 84%); background: linear-gradient(130deg, var(--chalk), var(--moon-clay) 35%, var(--warm-shadow) 36%, var(--lavender) 68%, var(--moon-clay)); position: relative; display: grid; place-items: center; box-shadow: inset -24px 28px 45px rgba(35,37,43,.18); }
.corridor-shadow { position: absolute; inset: 18%; border-radius: 44%; filter: blur(18px); opacity: .48; }
.corridor-shadow.one { background: var(--graphite); transform: translate(-22%, 18%) rotate(18deg); }
.corridor-shadow.two { background: var(--chalk); transform: translate(20%, -18%) rotate(-18deg); }
.hollow-dial { width: clamp(190px, 25vw, 320px); background: radial-gradient(circle, transparent 42%, var(--moon-clay) 43% 60%, var(--warm-shadow)); box-shadow: inset -20px -20px 35px rgba(250,247,240,.78), inset 18px 18px 34px rgba(75,70,64,.32); }
.hollow-dial .dial-core { opacity: 0; }
.orbit-inside { left: -18px; top: 46%; color: var(--cinnabar); }
.orbit-outside { right: -34px; top: 46%; }

.room-before { grid-template-columns: 1fr; place-items: center; overflow: hidden; }
.split-time { width: min(1100px, 88vw); display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.time-slab { min-height: 46vh; padding: clamp(28px, 5vw, 64px); position: relative; }
.before-slab { transform: rotate(1.6deg) translateY(4vh); }
.after-slab { transform: rotate(-1.8deg) translateY(-4vh); background: linear-gradient(145deg, rgba(35,37,43,.94), rgba(35,37,43,.78)); color: var(--moon-clay); box-shadow: 26px 26px 58px rgba(35,37,43,.28), -20px -20px 44px rgba(250,247,240,.42), inset 1px 1px 0 rgba(216,211,234,.22); }
.after-slab p, .after-slab .room-label { color: rgba(233,226,214,.7); }
.twin-dial { position: absolute; width: clamp(180px, 24vw, 290px); background: transparent; }
.yes-dial, .no-dial { position: absolute; width: 68%; aspect-ratio: 1; border-radius: 50%; display: grid; place-items: center; background: var(--moon-clay); box-shadow: 18px 18px 34px rgba(126,117,105,.35), -16px -16px 28px rgba(250,247,240,.72); color: var(--teal); }
.yes-dial { left: 2%; transform: translateX(-12%); }
.no-dial { right: 2%; transform: translateX(12%); color: var(--cinnabar); box-shadow: inset 15px 15px 28px rgba(126,117,105,.38), inset -14px -14px 28px rgba(250,247,240,.72); }
.half-arrow { position: absolute; right: 16vw; bottom: 15vh; font: 120px "IBM Plex Serif", serif; color: rgba(185,75,63,.28); clip-path: inset(0 47% 0 0); }

.room-true { background: radial-gradient(circle at center, rgba(35,37,43,.96), var(--graphite)); color: var(--moon-clay); }
.room-true::after { border-color: rgba(216,211,234,.18); box-shadow: inset 20px 20px 50px rgba(0,0,0,.34), inset -16px -16px 42px rgba(216,211,234,.08); }
.truth-void { min-height: 58vh; padding: clamp(34px, 6vw, 78px); background: linear-gradient(145deg, rgba(35,37,43,.2), rgba(0,0,0,.16)); box-shadow: inset 26px 26px 60px rgba(0,0,0,.32), inset -18px -18px 48px rgba(216,211,234,.08); }
.truth-void .room-label { position: static; color: var(--lavender); margin-bottom: 10vh; display: block; }
.truth-statement { display: grid; gap: 6px; color: var(--moon-clay); text-shadow: 8px 8px 22px rgba(0,0,0,.5), -3px -3px 12px rgba(216,211,234,.12); }
.truth-statement span:last-child { color: transparent; -webkit-text-stroke: 1px var(--cinnabar); transform: translateX(10%); }
.final-seal { justify-self: center; width: min(520px, 80vw); aspect-ratio: 1; border-radius: 50%; display: flex; align-items: center; justify-content: center; position: relative; font-family: "IBM Plex Serif", serif; font-size: clamp(54px, 9vw, 104px); letter-spacing: -.08em; background: var(--moon-clay); color: var(--graphite); box-shadow: 38px 38px 70px rgba(0,0,0,.34), -18px -18px 42px rgba(216,211,234,.13), inset -18px -18px 38px rgba(250,247,240,.76), inset 18px 18px 38px rgba(118,108,96,.34); }
.seal-mo { text-shadow: -4px -4px 8px rgba(250,247,240,.8), 5px 5px 12px rgba(126,117,105,.38); }
.seal-sun { color: var(--moon-clay); text-shadow: 2px 2px 1px rgba(250,247,240,.7), -2px -2px 1px rgba(126,117,105,.5); }
.seal-dot { color: var(--cinnabar); transform: translateY(-10%); }
.seal-xyz { color: rgba(35,37,43,.72); filter: drop-shadow(0 18px 12px rgba(35,37,43,.22)); }
.seal-korean { position: absolute; bottom: 23%; right: 24%; font-family: "Noto Sans KR", sans-serif; font-size: 18px; letter-spacing: .4em; color: var(--teal); font-style: normal; }

@keyframes breathe {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-7px) scale(1.012); }
}
.paradox-dial, .final-seal { animation: breathe 7s ease-in-out infinite; }

@media (max-width: 820px) {
  .room { grid-template-columns: 1fr; padding: 66px 24px; }
  .split-time { grid-template-columns: 1fr; }
  .seam-nav { right: 12px; }
  .opening-plane { aspect-ratio: 1 / 1.1; }
  .cinnabar-switch { right: 10%; bottom: 12%; }
}