@charset "utf-8";

/* 블루 아카이브 홀 — 홈 전용 디자인 시스템
   공간 이미지는 크게, 정보는 괘선과 여백으로만 정리한다. */
:root {
  --blue: #0b67b2;
  --blue-light: #8fc7f4;
  --night: #071421;
  --night-soft: #0b1c2c;
  --night-rule: #28425a;
  --white: #f8fafc;
  --white-soft: #c8d3dd;
  --paper: #f6f3ec;
  --ink: #15202b;
  --ink-soft: #55616c;
  --rule: #cfcac0;
  --focus: #ffb866;
  --display: "KMU80 Sungkok Serif", "Noto Serif KR", serif;
  --title: "KMU80 Sungkok SemiSerif", "Noto Serif KR", serif;
  --body: "Pretendard Light", Pretendard, "Noto Sans KR", sans-serif;
  --ui: "Pretendard Light", Pretendard, "Noto Sans KR", sans-serif;
  --wrap: 76rem;
  --gutter: clamp(1.25rem, 4.5vw, 4rem);
}

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

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

body {
  margin: 0;
  background: var(--night);
  color: var(--white);
  font-family: var(--body);
  font-weight: 300;
  font-size: 1rem;
  font-synthesis: none;
  line-height: 1.7;
  letter-spacing: -0.01em;
  word-break: keep-all;
  overflow-wrap: break-word;
}

button,
input { font: inherit; }

a {
  color: inherit;
  text-underline-offset: 0.22em;
}

img { display: block; max-width: 100%; }

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-nav {
  position: fixed;
  z-index: 1000;
  top: -5rem;
  left: 1rem;
  padding: 0.75rem 1rem;
  background: var(--focus);
  color: #111;
  text-decoration: none;
}

.skip-nav:focus { top: 1rem; }

.museum-wrap {
  width: min(100%, var(--wrap));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ── 첫 입장 연출 ─────────────────────────────────────────── */
body.is-entering { overflow: hidden; }

.museum-entrance[hidden] { display: none; }

.museum-entrance {
  position: fixed;
  z-index: 2000;
  inset: 0;
  overflow: hidden;
  background: transparent;
  color: #fff;
}

.museum-entrance__dark {
  position: absolute;
  z-index: 0;
  inset: 0;
  background: #010407;
}

.museum-curtain {
  position: absolute;
  z-index: 2;
  top: 0;
  bottom: 0;
  width: 52%;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 50% 42%, rgb(255 211 155 / 0.18), transparent 42%),
    repeating-linear-gradient(90deg, #27080d 0 4%, #681522 9%, #340810 15%, #821c2c 20%, #2a070d 26%);
  box-shadow: inset 0 0 6rem rgb(0 0 0 / 0.74), 0 0 3rem rgb(0 0 0 / 0.78);
  will-change: transform;
}

.museum-curtain::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, transparent, rgb(255 222 177 / 0.08) 48%, transparent 55%),
    linear-gradient(180deg, rgb(0 0 0 / 0.08), transparent 22% 76%, rgb(0 0 0 / 0.32));
}

.museum-curtain::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 0.45rem;
  background: linear-gradient(90deg, #7b5420, #e0bb6a 45%, #6b4213);
  box-shadow: 0 0 1rem rgb(223 180 101 / 0.4);
}

.museum-curtain > span {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 14%;
  background:
    repeating-linear-gradient(90deg, #31090f 0 5%, #7a1b28 10%, #390a12 16%),
    linear-gradient(#701520, #2a070d);
  border-bottom: 2px solid #b78943;
  box-shadow: 0 1.2rem 2rem rgb(0 0 0 / 0.48);
}

.museum-curtain--left { left: 0; transform-origin: left center; }
.museum-curtain--right { right: 0; transform-origin: right center; }
.museum-curtain--left::after { right: 0; }
.museum-curtain--right::after { left: 0; }

.museum-entrance__mark {
  position: absolute;
  z-index: 3;
  top: 50%;
  left: 50%;
  width: min(82vw, 34rem);
  text-align: center;
  text-shadow: 0 0.3rem 1.5rem #000;
  transform: translate(-50%, -50%);
}

.museum-entrance__mark p {
  margin: 0 0 1rem;
  color: #dfbc79;
  font-family: var(--ui);
  font-size: clamp(0.58rem, 0.8vw, 0.75rem);
  letter-spacing: 0.24em;
}

.museum-entrance__mark strong {
  font-family: var(--display);
  font-size: clamp(2.1rem, 5vw, 4.5rem);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -0.055em;
}

.museum-entrance__mark strong span { color: var(--blue-light); }

.museum-entrance__mark button {
  display: block;
  min-width: 7.5rem;
  margin: 2rem auto 0;
  padding: 0.7rem 1.15rem;
  border: 1px solid rgb(228 198 137 / 0.72);
  background: rgb(12 10 10 / 0.58);
  color: #f5e8cf;
  font-family: var(--ui);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  cursor: pointer;
}

.museum-entrance__mark button:hover { background: rgb(104 21 34 / 0.8); }

.museum-entrance.is-opening .museum-curtain--left {
  animation: curtain-open-left 2.5s cubic-bezier(0.76, 0, 0.2, 1) 0.35s forwards;
}

.museum-entrance.is-opening .museum-curtain--right {
  animation: curtain-open-right 2.5s cubic-bezier(0.76, 0, 0.2, 1) 0.35s forwards;
}

.museum-entrance.is-opening .museum-entrance__mark {
  animation: entrance-mark-away 1.05s ease 0.58s forwards;
}

.museum-entrance.is-opening .museum-entrance__dark {
  animation: entrance-dark-away 2.1s ease 0.35s forwards;
}

body.is-hall-opening .museum-hall__panel {
  animation: hall-enter 2.8s cubic-bezier(0.18, 0.82, 0.24, 1) 0.25s both;
  transform-origin: 50% 54%;
  will-change: transform, filter, opacity;
}

@keyframes curtain-open-left {
  0% { transform: translateX(0) scaleX(1); }
  68% { transform: translateX(-78%) scaleX(0.62); }
  100% { transform: translateX(-99%) scaleX(0.38); }
}

@keyframes curtain-open-right {
  0% { transform: translateX(0) scaleX(1); }
  68% { transform: translateX(78%) scaleX(0.62); }
  100% { transform: translateX(99%) scaleX(0.38); }
}

@keyframes entrance-mark-away {
  to { opacity: 0; transform: translate(-50%, -50%) scale(1.08); }
}

@keyframes entrance-dark-away { to { opacity: 0; } }

@keyframes hall-enter {
  0% { opacity: 0.38; filter: brightness(0.5) blur(0.18rem); transform: scale(0.86); }
  55% { opacity: 1; filter: brightness(0.88) blur(0); transform: scale(1.035); }
  100% { opacity: 1; filter: none; transform: scale(1); }
}

/* ── 전역 내비게이션 ─────────────────────────────────────── */
.archive-header {
  position: relative;
  z-index: 50;
  border-bottom: 1px solid var(--night-rule);
  background: var(--night);
}

.archive-header__inner {
  min-height: 5rem;
  width: min(100%, 92rem);
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: flex;
  align-items: center;
  gap: clamp(1.5rem, 3vw, 3.5rem);
}

.archive-brand {
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
  color: var(--white);
  font-family: var(--display);
  font-size: 1.08rem;
  letter-spacing: -0.025em;
  text-decoration: none;
  white-space: nowrap;
}

.archive-brand__hall { color: var(--blue-light); }

.archive-nav {
  display: flex;
  gap: clamp(1rem, 2.2vw, 2.25rem);
  margin-left: auto;
}

.archive-nav a,
.archive-search {
  border-bottom: 1px solid transparent;
  color: var(--white-soft);
  font-family: var(--ui);
  font-size: 0.78rem;
  letter-spacing: 0.03em;
  text-decoration: none;
}

.archive-nav a { padding-block: 0.45rem; }
.archive-nav a:hover,
.archive-nav a:focus-visible { color: var(--white); border-bottom-color: var(--blue-light); }

.archive-search {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  min-height: 2.75rem;
  padding-inline: 1rem;
  border: 1px solid #557088;
  color: var(--white);
}

.archive-search:hover { border-color: var(--blue-light); }

.archive-menu-button {
  display: none;
  width: 2.75rem;
  height: 2.75rem;
  margin-left: auto;
  padding: 0.7rem;
  border: 1px solid #557088;
  background: transparent;
  cursor: pointer;
}

.archive-menu-button span {
  display: block;
  height: 1px;
  margin-block: 0.28rem;
  background: var(--white);
}

.archive-mobile-menu[hidden] { display: none !important; }
.archive-mobile-menu { border-top: 1px solid var(--night-rule); }
.archive-mobile-menu nav { padding: 0.5rem var(--gutter) 1.25rem; }
.archive-mobile-menu a {
  display: block;
  padding-block: 0.7rem;
  border-bottom: 1px solid var(--night-rule);
  color: var(--white-soft);
  text-decoration: none;
}

/* ── 전시 홀 위 입구 표제 ────────────────────────────────── */
.museum-intro {
  position: absolute;
  z-index: 4;
  inset: 18% 0 auto;
  height: 15.5%;
  background: transparent;
  pointer-events: none;
}

.museum-intro__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
  align-items: center;
  gap: 8%;
  height: 100%;
  padding: 0 14.75%;
}

.museum-kicker,
.room-detail__kicker,
.room-directory__title {
  margin: 0 0 1.1rem;
  color: var(--blue-light);
  font-family: var(--ui);
  font-size: 0.72rem;
  line-height: 1.4;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.museum-intro h1 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(1.8rem, 2.35vw, 3rem);
  font-weight: 400;
  line-height: 1.03;
  letter-spacing: -0.055em;
  text-shadow: 0 0.2rem 1.2rem rgb(0 0 0 / 0.72);
}

.museum-intro .museum-kicker {
  margin-bottom: 0.65rem;
  text-shadow: 0 0.15rem 0.8rem rgb(0 0 0 / 0.8);
}

.museum-intro__title-line { white-space: nowrap; }
.museum-intro__title-accent { color: var(--blue-light); }

.museum-intro__copy {
  padding-top: 0.9rem;
  border-top: 1px solid rgb(143 199 244 / 0.42);
  color: #d5e0e8;
  font-size: clamp(0.76rem, 0.82vw, 0.95rem);
  line-height: 1.6;
  text-shadow: 0 0.15rem 0.8rem rgb(0 0 0 / 0.9);
}

.museum-intro__copy p { margin: 0 0 0.75rem; }
.museum-intro__copy a {
  color: var(--white);
  text-decoration-color: #557088;
  pointer-events: auto;
}

/* ── 가상 전시 홀 ─────────────────────────────────────────── */
.museum-map {
  position: relative;
  isolation: isolate;
  width: 100%;
  overflow: hidden;
  background: #030c13;
}

.museum-hall {
  position: relative;
  width: 100%;
  aspect-ratio: 1672 / 941;
  overflow: hidden;
  background: #02070d;
}

.museum-hall__plane {
  position: relative;
  min-width: 0;
  overflow: hidden;
  pointer-events: none;
}

.museum-hall__plane::after {
  content: "";
  position: absolute;
  inset: 0;
}

.museum-hall__plane--ceiling-left {
  grid-area: 1 / 1;
  background: linear-gradient(135deg, #02070c, #10273a);
}

.museum-hall__plane--ceiling {
  grid-area: 1 / 2;
  background:
    radial-gradient(ellipse at 50% 100%, rgb(65 116 151 / 0.34), transparent 63%),
    repeating-linear-gradient(90deg, transparent 0 12.4%, rgb(151 187 211 / 0.08) 12.5% 12.65%),
    linear-gradient(#02080e, #10273a);
}

.museum-hall__plane--ceiling-right {
  grid-area: 1 / 3;
  background: linear-gradient(225deg, #02070c, #10273a);
}

.museum-hall__plane--ceiling-left::after {
  background: linear-gradient(to bottom right, transparent 49.4%, rgb(119 160 190 / 0.38) 49.8% 50.2%, transparent 50.6%);
}

.museum-hall__plane--ceiling-right::after {
  background: linear-gradient(to bottom left, transparent 49.4%, rgb(119 160 190 / 0.38) 49.8% 50.2%, transparent 50.6%);
}

.museum-hall__plane--left-wall {
  grid-area: 2 / 1;
  border-right: 1px solid rgb(124 166 196 / 0.27);
  background:
    repeating-linear-gradient(11deg, transparent 0 16%, rgb(112 153 183 / 0.08) 16.2% 16.5%),
    linear-gradient(90deg, #02070c, #0f2a40);
}

.museum-hall__plane--right-wall {
  grid-area: 2 / 3;
  border-left: 1px solid rgb(124 166 196 / 0.27);
  background:
    repeating-linear-gradient(-11deg, transparent 0 16%, rgb(112 153 183 / 0.08) 16.2% 16.5%),
    linear-gradient(270deg, #02070c, #0f2a40);
}

.museum-hall__plane--left-wall::after {
  background: radial-gradient(ellipse at 100% 50%, rgb(40 105 151 / 0.2), transparent 68%);
}

.museum-hall__plane--right-wall::after {
  background: radial-gradient(ellipse at 0 50%, rgb(40 105 151 / 0.2), transparent 68%);
}

.museum-hall__plane--floor-left {
  grid-area: 3 / 1;
  background: linear-gradient(45deg, #03080d, #11283a);
}

.museum-hall__plane--floor {
  grid-area: 3 / 2;
  background:
    repeating-linear-gradient(90deg, transparent 0 12.4%, rgb(142 176 200 / 0.08) 12.5% 12.65%),
    linear-gradient(#11283a, #03080d);
}

.museum-hall__plane--floor-right {
  grid-area: 3 / 3;
  background: linear-gradient(-45deg, #03080d, #11283a);
}

.museum-hall__plane--floor-left::after {
  background: linear-gradient(to bottom left, transparent 49.4%, rgb(119 160 190 / 0.38) 49.8% 50.2%, transparent 50.6%);
}

.museum-hall__plane--floor-right::after {
  background: linear-gradient(to bottom right, transparent 49.4%, rgb(119 160 190 / 0.38) 49.8% 50.2%, transparent 50.6%);
}

.museum-hall__panel {
  position: relative;
  z-index: 2;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #06111a;
}

.museum-hall__background {
  position: absolute;
  z-index: 0;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  filter: brightness(0.78) saturate(0.92) contrast(1.02);
  pointer-events: none;
}

.museum-hall__wall-texture {
  position: absolute;
  z-index: 1;
  inset: 0;
  opacity: 0.78;
  background:
    linear-gradient(90deg, rgb(2 8 13 / 0.18), transparent 12% 88%, rgb(2 8 13 / 0.18)),
    radial-gradient(ellipse at 50% 48%, transparent 42%, rgb(2 9 15 / 0.28) 100%);
  pointer-events: none;
}

.museum-map::after {
  content: "";
  position: absolute;
  z-index: 1;
  inset: 0;
  pointer-events: none;
  box-shadow: inset 0 0 0 1px rgb(255 255 255 / 0.08);
}

.museum-map__notice,
.museum-map__hint {
  position: absolute;
  z-index: 4;
  bottom: 1.25rem;
  margin: 0;
  padding: 0.5rem 0.7rem;
  background: rgb(3 12 19 / 0.88);
  color: #d6e0e8;
  font-family: var(--ui);
  font-size: 0.7rem;
  letter-spacing: 0.03em;
}

.museum-map__notice { left: var(--gutter); }
.museum-map__hint { right: var(--gutter); }
.museum-map__hint span { color: var(--blue-light); }

.museum-map__hotspots {
  position: absolute;
  z-index: 5;
  top: 34.8%;
  bottom: 28.65%;
  left: 14.75%;
  display: flex;
  width: 70.5%;
  align-items: stretch;
  justify-content: space-between;
}

.museum-door {
  position: relative;
  display: block;
  flex: 0 0 8%;
  width: 8%;
  height: 100%;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: #fff;
  font-family: var(--ui);
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  box-shadow: none;
  appearance: none;
}

.museum-door__frame {
  position: absolute;
  z-index: 1;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  pointer-events: none;
}

.museum-door__shadow { fill: rgb(3 12 20 / 0.62); }
.museum-door__outer-line,
.museum-door__inner-line,
.museum-door__panel-line,
.museum-door__timeline-line {
  fill: none;
  vector-effect: non-scaling-stroke;
}
.museum-door__outer-line { stroke: #caa468; stroke-width: 1.35; }
.museum-door__inner-line { stroke: rgb(115 184 228 / 0.82); stroke-width: 0.85; }
.museum-door__panel-line { stroke: rgb(95 149 185 / 0.22); stroke-width: 0.65; }
.museum-door__timeline-line { stroke: rgb(144 190 220 / 0.38); stroke-width: 0.7; }

.museum-door__info {
  position: absolute;
  z-index: 12;
  bottom: 52%;
  left: 50%;
  display: block;
  width: clamp(24rem, 34vw, 34rem);
  padding: clamp(1.25rem, 1.8vw, 1.75rem);
  border: 1px solid rgb(147 193 223 / 0.48);
  background: rgb(3 13 22 / 0.96);
  color: #dce8f0;
  text-align: left;
  box-shadow: 0 1.4rem 3.5rem rgb(0 0 0 / 0.58);
  opacity: 0;
  visibility: hidden;
  transform: translate(-50%, 0.45rem);
  transition: opacity 160ms ease, transform 160ms ease, visibility 160ms;
  pointer-events: none;
}

.museum-door__info::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  width: 0;
  height: 0;
  border: 0.42rem solid transparent;
  border-top-color: rgb(147 193 223 / 0.48);
  transform: translateX(-50%);
}

.museum-door__meta,
.museum-door__info strong,
.museum-door__info small,
.museum-door__tagline,
.museum-door__summary,
.museum-door__action { display: block; }

.museum-door__meta {
  color: #8fc7f4;
  font-size: clamp(0.7rem, 0.7vw, 0.82rem);
  line-height: 1.25;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.museum-door__info strong {
  margin-top: 0.48rem;
  color: #eef7fd;
  font-family: var(--title);
  font-size: clamp(1.15rem, 1.35vw, 1.55rem);
  font-weight: 400;
  line-height: 1.38;
  letter-spacing: -0.035em;
}

.museum-door__info small {
  margin-top: 0.3rem;
  color: #b7cad8;
  font-size: clamp(0.7rem, 0.68vw, 0.82rem);
  line-height: 1.35;
}

.museum-door__tagline {
  margin-top: 0.75rem;
  color: #9dceee;
  font-size: clamp(0.78rem, 0.76vw, 0.9rem);
  line-height: 1.5;
  letter-spacing: -0.02em;
}

.museum-door__summary {
  margin-top: 0.8rem;
  padding-top: 0.75rem;
  border-top: 1px solid rgb(143 199 244 / 0.24);
  color: #b8c7d2;
  font-size: clamp(0.76rem, 0.72vw, 0.88rem);
  line-height: 1.62;
}

.museum-door__action {
  margin-top: 0.85rem;
  color: #f0f7fc;
  font-size: clamp(0.72rem, 0.68vw, 0.82rem);
}

.museum-door__action span { color: var(--blue-light); }

.museum-door__target {
  position: absolute;
  z-index: 3;
  top: 50%;
  left: 50%;
  display: grid;
  width: 34%;
  aspect-ratio: 1;
  place-items: center;
  border: 1px solid rgb(226 240 249 / 0.8);
  border-radius: 50%;
  background: rgb(3 15 25 / 0.86);
  color: #fff;
  font-size: clamp(0.42rem, 0.52vw, 0.64rem);
  line-height: 1;
  letter-spacing: 0.02em;
  box-shadow: 0 0 0 0.25rem rgb(4 18 29 / 0.35);
  transform: translate(-50%, -50%);
}

.museum-door__target:hover + .museum-door__info,
.museum-door:focus-visible .museum-door__info {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}

.museum-door:hover,
.museum-door:focus-visible { z-index: 20; }

.museum-door:hover,
.museum-door:focus-visible,
.museum-door.is-active {
  background: transparent;
}

.museum-door:hover .museum-door__target,
.museum-door:focus-visible .museum-door__target,
.museum-door.is-active .museum-door__target {
  border-color: #fff;
  background: var(--blue);
  box-shadow: 0 0 0 0.4rem rgb(143 199 244 / 0.22), 0 0 1.25rem rgb(91 180 239 / 0.55);
}

.museum-door.is-active::after {
  content: none;
}

.museum-door--timeline {
  background: transparent;
}

.museum-door--timeline .museum-door__outer-line { stroke: #e7c987; }
.museum-door--timeline .museum-door__inner-line,
.museum-door--timeline .museum-door__timeline-line { stroke: rgb(231 201 135 / 0.72); }
.museum-door--timeline .museum-door__meta,
.museum-door--timeline .museum-door__tagline { color: #e1c98e; }
.museum-door--timeline .museum-door__target {
  border-color: #f0d89e;
  background: rgb(50 38 18 / 0.9);
  font-size: clamp(0.4rem, 0.5vw, 0.61rem);
}
.museum-door--timeline:hover .museum-door__target,
.museum-door--timeline:focus-visible .museum-door__target { background: #8b6419; }

.museum-door:focus-visible {
  outline: none;
}

.museum-door:focus-visible .museum-door__target {
  outline: 3px solid var(--focus);
  outline-offset: 0.25rem;
}

/* ── 전시실 안내 ──────────────────────────────────────────── */
.room-reader {
  border-top: 1px solid var(--night-rule);
  background: var(--night-soft);
  padding-block: clamp(3rem, 6vw, 5rem);
}

.room-reader__grid {
  display: grid;
  grid-template-columns: minmax(20rem, 0.9fr) minmax(24rem, 1.1fr);
  gap: clamp(3rem, 6vw, 6rem);
}

.room-detail {
  align-self: start;
  border-top: 1px solid #557088;
}

.room-detail__media {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: #06101a;
}

.room-detail__media img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  filter: saturate(0.82) contrast(1.04);
}

.room-detail__media::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid rgb(255 255 255 / 0.12);
  pointer-events: none;
}

.room-detail__media figcaption {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  padding: 1.8rem 0.85rem 0.65rem;
  background: linear-gradient(transparent, rgb(3 12 19 / 0.86));
  color: #e5edf4;
  font-size: 0.69rem;
  line-height: 1.45;
}

.room-detail__body { padding-top: 1.6rem; }

.room-detail h2 {
  margin: 0 0 1rem;
  font-family: var(--display);
  font-size: clamp(2rem, 3.6vw, 3.75rem);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.04em;
}

.room-detail__subtitle {
  margin: -0.35rem 0 0.7rem;
  color: #e7eef5;
  font-size: 1.02rem;
}

.room-detail__tagline {
  margin: 0 0 1.1rem;
  padding-left: 0.9rem;
  border-left: 2px solid var(--blue-light);
  color: var(--blue-light);
}

.room-detail__copy {
  max-width: 31rem;
  margin: 0 0 1.75rem;
  color: var(--white-soft);
}

.room-detail a {
  display: inline-flex;
  gap: 1rem;
  align-items: center;
  min-height: 2.75rem;
  padding-bottom: 0.25rem;
  border-bottom: 1px solid var(--blue-light);
  color: var(--white);
  text-decoration: none;
}

.room-directory { padding-top: 1.25rem; border-top: 1px solid var(--night-rule); }
.room-directory ol {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 1.6rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.room-directory li { margin: 0; }
.room-directory a {
  display: grid;
  grid-template-columns: 5.6rem minmax(0, 1fr);
  gap: 0.85rem;
  min-height: 6.1rem;
  padding-block: 0.8rem;
  border-bottom: 1px solid var(--night-rule);
  color: var(--white-soft);
  text-decoration: none;
}

.room-directory img {
  width: 5.6rem;
  height: 4.4rem;
  object-fit: cover;
  filter: saturate(0.7);
}

.room-directory__copy {
  display: flex;
  min-width: 0;
  flex-direction: column;
  justify-content: center;
}

.room-directory__meta {
  color: var(--blue-light);
  font-family: var(--ui);
  font-size: 0.66rem;
  letter-spacing: 0.06em;
}

.room-directory strong {
  margin-top: 0.15rem;
  color: inherit;
  font-family: var(--title);
  font-size: 0.96rem;
  font-weight: 400;
  line-height: 1.45;
}

.room-directory small {
  margin-top: 0.15rem;
  overflow: hidden;
  color: #9daebb;
  font-size: 0.7rem;
  line-height: 1.4;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.room-directory a:hover { color: var(--white); border-bottom-color: var(--blue-light); }
.room-directory a:hover img { filter: saturate(1); }

/* ── 세 가지 탐색 ─────────────────────────────────────────── */
.museum-explore {
  padding-block: clamp(4rem, 8vw, 8rem);
  background: var(--paper);
  color: var(--ink);
}

.museum-kicker--blue { color: #07599d; }

.museum-explore > .museum-wrap > h2 {
  margin: 0 0 clamp(2.5rem, 5vw, 4.5rem);
  font-family: var(--display);
  font-size: clamp(2rem, 4vw, 4rem);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.04em;
}

.museum-axes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--ink);
}

.museum-axes > a {
  position: relative;
  min-height: 15rem;
  padding: 1.4rem clamp(1rem, 2vw, 2rem) 2rem;
  border-right: 1px solid var(--rule);
  color: var(--ink);
  text-decoration: none;
}

.museum-axes > a:first-child { padding-left: 0; }
.museum-axes > a:last-child { padding-right: 0; border-right: 0; }
.museum-axis__number {
  color: #07599d;
  font-family: var(--ui);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}

.museum-axes h3 {
  margin: 2.5rem 0 0.65rem;
  font-family: var(--title);
  font-size: clamp(1.35rem, 2.2vw, 2rem);
  font-weight: 400;
}

.museum-axes p { max-width: 20rem; margin: 0; color: var(--ink-soft); }
.museum-axes > a > span:last-child { position: absolute; right: 2rem; bottom: 1.5rem; color: #07599d; }
.museum-axes > a:hover h3 { color: #07599d; }

/* ── 푸터 ─────────────────────────────────────────────────── */
.archive-footer {
  padding-block: 3rem;
  border-top: 1px solid var(--night-rule);
  background: var(--night);
  color: var(--white-soft);
  font-size: 0.82rem;
}

.archive-footer__inner {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 2rem;
}

.archive-footer p { margin: 0; }
.archive-footer p:nth-child(2) { text-align: center; color: var(--blue-light); font-size: 1.05rem; }
.archive-footer p:last-child { text-align: right; }
.archive-footer p > span { color: var(--white); }
.archive-footer a { color: var(--white-soft); }

/* ── 반응형 ───────────────────────────────────────────────── */
@media (max-width: 60rem) {
  .archive-nav,
  .archive-search { display: none; }
  .archive-menu-button { display: block; }
}

@media (max-width: 51.25rem) {
  .museum-map { overflow-x: auto; }

  .museum-hall {
    width: 52rem;
    max-width: none;
  }

  .museum-intro__copy { font-size: 0.68rem; }
  .museum-intro h1 { font-size: 1.55rem; }

  .museum-door__info {
    width: 18rem;
    padding: 1rem 1.1rem;
  }
}

@media (max-width: 44rem) {
  .archive-header__inner { min-height: 4.5rem; }
  .archive-brand { display: block; font-size: 0.98rem; line-height: 1.25; }
  .archive-brand__hall { display: block; }

  .room-reader__grid { grid-template-columns: 1fr; }

  .museum-map__hint { display: none; }
  .museum-map__notice {
    right: 0.75rem;
    bottom: 0.75rem;
    left: auto;
    font-size: 0.62rem;
  }

  .room-reader__grid { gap: 2.75rem; }
  .room-detail { min-height: 0; }
  .room-directory ol { grid-template-columns: 1fr; }

  .museum-axes { grid-template-columns: 1fr; }
  .museum-axes > a,
  .museum-axes > a:first-child,
  .museum-axes > a:last-child {
    min-height: 0;
    padding: 1.35rem 2.5rem 1.35rem 0;
    border-right: 0;
    border-bottom: 1px solid var(--rule);
  }
  .museum-axes h3 { margin: 0.75rem 0 0.4rem; }
  .museum-axes > a > span:last-child { right: 0.25rem; bottom: auto; top: 50%; transform: translateY(-50%); }

  .archive-footer__inner { grid-template-columns: 1fr; gap: 1.25rem; }
  .archive-footer p:nth-child(2),
  .archive-footer p:last-child { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .museum-entrance { display: none !important; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

@media print {
  .archive-header,
  .museum-map__hotspots,
  .museum-map__hint,
  .archive-footer,
  .skip-nav { display: none !important; }
  body,
  .museum-intro,
  .room-reader { background: #fff; color: #000; }
  .museum-intro__title-accent,
  .museum-kicker,
  .room-detail__kicker { color: #004f9f; }
}

/* ── 8문 전시 홀 v2 ─────────────────────────────────────────
   중앙 패널은 최대 1280×720의 16:9 좌표계다. 문은 패널 안에서
   a=3%, g=1.8%(그리드 폭 기준), 8등분으로 계산되어 그림과 링크가
   같은 요소를 공유한다. 좌우 공간만 뷰포트에 따라 확장된다. */
.museum-hall {
  display: grid;
  width: 100%;
  height: clamp(36rem, 56.25vw, 50rem);
  aspect-ratio: auto;
  place-items: center;
  overflow: hidden;
  background: #02070d;
}

.museum-hall__shell {
  position: absolute;
  z-index: 0;
  inset: 0;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 50% 52%, rgb(45 106 148 / 0.24), transparent 46%),
    linear-gradient(#071522 0 48%, #0d2435 48% 54%, #02070c 100%);
}

.museum-hall__shell .museum-hall__plane {
  position: absolute;
  display: block;
  pointer-events: none;
}

.museum-hall__shell .museum-hall__plane--left-wall,
.museum-hall__shell .museum-hall__plane--right-wall {
  top: 0;
  bottom: 0;
  width: max(0px, calc((100% - 80rem) / 2));
}
.museum-hall__shell .museum-hall__plane--left-wall {
  left: 0;
  border-right: 1px solid rgb(142 190 222 / 0.35);
  background:
    repeating-linear-gradient(12deg, transparent 0 13%, rgb(142 190 222 / 0.1) 13.2% 13.5%),
    linear-gradient(90deg, #010509, #102b40);
}
.museum-hall__shell .museum-hall__plane--right-wall {
  right: 0;
  border-left: 1px solid rgb(142 190 222 / 0.35);
  background:
    repeating-linear-gradient(-12deg, transparent 0 13%, rgb(142 190 222 / 0.1) 13.2% 13.5%),
    linear-gradient(270deg, #010509, #102b40);
}
.museum-hall__shell .museum-hall__plane--ceiling,
.museum-hall__shell .museum-hall__plane--floor {
  right: 0;
  left: 0;
  height: max(0px, calc((100% - 45rem) / 2));
}
.museum-hall__shell .museum-hall__plane--ceiling {
  top: 0;
  background:
    repeating-linear-gradient(90deg, transparent 0 12.35%, rgb(142 190 222 / 0.11) 12.45% 12.55%),
    linear-gradient(#010509, #10283b);
}
.museum-hall__shell .museum-hall__plane--floor {
  bottom: 0;
  background:
    repeating-linear-gradient(90deg, transparent 0 12.35%, rgb(142 190 222 / 0.09) 12.45% 12.55%),
    linear-gradient(#122d40, #010509);
}

.museum-hall__panel {
  position: relative;
  z-index: 2;
  width: min(100%, 80rem);
  height: auto;
  aspect-ratio: 16 / 9;
  overflow: visible;
  background:
    linear-gradient(180deg, rgb(4 13 21 / 0.08) 0 35%, rgb(3 11 18 / 0.72) 100%),
    repeating-linear-gradient(90deg, transparent 0 12.45%, rgb(102 161 201 / 0.07) 12.48% 12.52%),
    radial-gradient(ellipse at 50% 48%, #163a54, #06131f 72%);
  box-shadow: 0 0 5rem rgb(15 77 119 / 0.18), inset 0 0 0 1px rgb(139 187 219 / 0.2);
}

.museum-hall__panel::before,
.museum-hall__panel::after {
  content: "";
  position: absolute;
  z-index: 1;
  right: 0;
  left: 0;
  pointer-events: none;
}
.museum-hall__panel::before {
  top: 0;
  height: 34%;
  background: linear-gradient(180deg, rgb(2 8 13 / 0.82), transparent);
}
.museum-hall__panel::after {
  bottom: 0;
  height: 18%;
  border-top: 1px solid rgb(132 181 213 / 0.2);
  background:
    repeating-linear-gradient(90deg, transparent 0 12.4%, rgb(142 190 222 / 0.11) 12.48% 12.55%),
    linear-gradient(180deg, rgb(20 53 76 / 0.72), rgb(2 7 11 / 0.94));
  transform-origin: top;
}

.museum-hall__wall-texture {
  background:
    linear-gradient(90deg, rgb(2 8 13 / 0.45), transparent 8% 92%, rgb(2 8 13 / 0.45)),
    radial-gradient(ellipse at 50% 48%, transparent 38%, rgb(2 9 15 / 0.25) 100%);
}

.museum-intro {
  top: 11%;
  height: 21%;
}
.museum-intro__grid {
  gap: 7%;
  padding-inline: 3%;
}
.museum-intro h1 { font-size: clamp(1.55rem, 2.1vw, 2.55rem); }
.museum-intro__copy { font-size: clamp(0.7rem, 0.8vw, 0.9rem); }

.museum-map__hotspots {
  /* panel 기준 a + 8w + 7g + a = 100%. CSS grid가 w를 정확히 계산한다. */
  top: 38%;
  right: 3%;
  bottom: 18%;
  left: 3%;
  display: grid;
  width: auto;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  gap: 1.8%;
  align-items: stretch;
}

.museum-door {
  display: block;
  min-width: 0;
  width: auto;
  height: 100%;
  flex: none;
}

.museum-door__picture {
  position: absolute;
  z-index: 0;
  inset: 5.5% 8% 1%;
  overflow: hidden;
  background: #071a29;
}
.museum-door__picture::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgb(2 12 20 / 0.08), rgb(2 12 20 / 0.78));
}
.museum-door__picture img {
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  filter: saturate(0.55) contrast(1.08) brightness(0.8);
  transition: filter 180ms ease, transform 220ms ease;
}
.museum-door:hover .museum-door__picture img,
.museum-door:focus-visible .museum-door__picture img {
  filter: saturate(0.9) contrast(1.04) brightness(0.94);
  transform: scale(1.025);
}
.museum-door__frame { inset: 0; }
.museum-door__shadow { fill: rgb(2 9 15 / 0.22); }
.museum-door__target {
  width: 2.75rem;
  min-width: 2.75rem;
  min-height: 2.75rem;
  font-size: 0.62rem;
}

.museum-door__chronology {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-evenly;
  padding-block: 10%;
  background: linear-gradient(180deg, #302814, #0d1720 68%);
  color: #e7cf91;
  font-family: var(--ui);
  font-size: clamp(0.42rem, 0.55vw, 0.68rem);
  letter-spacing: 0.09em;
}
.museum-door__chronology::after { background: radial-gradient(circle, transparent, rgb(4 8 12 / 0.58)); }
.museum-door__chronology i { width: 1px; flex: 1; background: rgb(231 201 135 / 0.42); }
.museum-door__chronology strong {
  color: #f4dfa7;
  font-family: var(--title);
  font-size: 0.72em;
  font-weight: 400;
  writing-mode: vertical-rl;
}

@media (max-width: 80rem) {
  .museum-hall__shell .museum-hall__plane--left-wall,
  .museum-hall__shell .museum-hall__plane--right-wall { width: 0; }
}

@media (max-width: 51.25rem) {
  .museum-map { overflow: hidden; }
  .museum-hall {
    width: 100%;
    min-height: 46rem;
    height: clamp(46rem, 170vw, 55rem);
  }
  .museum-hall__panel {
    width: 100%;
    height: 100%;
    aspect-ratio: auto;
    overflow: hidden;
  }
  .museum-hall__shell { display: none; }
  .museum-intro { top: 5%; height: 23%; }
  .museum-intro__grid {
    grid-template-columns: 1fr;
    align-content: center;
    gap: 0.6rem;
    padding-inline: 6%;
  }
  .museum-intro h1 { font-size: clamp(1.65rem, 7vw, 2.4rem); }
  .museum-intro__copy { max-width: 35rem; padding-top: 0.55rem; font-size: 0.76rem; }
  .museum-intro__copy p { display: none; }
  .museum-map__hotspots {
    top: 31%;
    right: 6%;
    bottom: 10%;
    left: 6%;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    grid-template-rows: repeat(2, minmax(0, 1fr));
    gap: 4% 3%;
  }
  .museum-door__info { display: none; }
  .museum-door__target { width: 2.75rem; }
}

@media (max-width: 26rem) {
  .museum-hall { height: 50rem; }
  .museum-map__hotspots { right: 4%; left: 4%; gap: 3% 2%; }
  .museum-kicker { margin-bottom: 0.55rem; font-size: 0.62rem; }
  .museum-intro h1 { font-size: 1.72rem; }
}