:root {
  --bg-deep: #080706;
  --gold: #d4af37;
  --gold-glow: rgba(212, 175, 55, 0.45);
  --accent: #9a332c;
  --accent-light: #c84940;
  --text-main: #f5f2eb;
  --text-muted: #a0998c;
  --font-serif: 'Instrument Serif', Georgia, serif;
  --font-sans: 'Manrope', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Desktop 3D Geometry */
  --stage-perspective: 1000px;
  --wall-x: 480px;
  --wall-y: 350px;
  --wall-rot: 32deg;
  --frame-w: 360px;
  --frame-h: 480px;
  --portal-w: 860px;
  --portal-h: 680px;
}

/* Tablet */
@media (max-width: 960px) {
  :root {
    --stage-perspective: 840px;
    --wall-x: 300px;
    --wall-y: 320px;
    --wall-rot: 26deg;
    --frame-w: 280px;
    --frame-h: 380px;
    --portal-w: 580px;
    --portal-h: 560px;
  }
}

/* Mobile Phone Portrait */
@media (max-width: 580px) {
  :root {
    --stage-perspective: 660px;
    --wall-x: 155px;
    --wall-y: 280px;
    --wall-rot: 18deg;
    --frame-w: 200px;
    --frame-h: 275px;
    --portal-w: 330px;
    --portal-h: 460px;
  }
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--bg-deep);
  color: var(--text-main);
  font-family: var(--font-sans);
  user-select: none;
  -webkit-user-select: none;
  touch-action: none !important;
  overscroll-behavior: none !important;
  position: fixed;
}

/* ==================== 3D STAGE & SCENE ==================== */
.space-container {
  position: fixed;
  inset: 0;
  overflow: hidden;
  perspective: var(--stage-perspective);
  perspective-origin: 50% 50%;
  background: #080706;
  cursor: grab;
  touch-action: none !important;
  overscroll-behavior: none !important;
}
.space-container:active {
  cursor: grabbing;
}

.camera-rig {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  transform-style: preserve-3d;
  will-change: transform;
}

.gallery-world {
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 0;
  transform-style: preserve-3d;
}

/* Atmospheric depth fog */
.depth-fog {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 15;
  background: radial-gradient(circle at 50% 50%, transparent 20%, rgba(8, 7, 6, 0.4) 65%, rgba(5, 4, 3, 0.96) 100%);
}

/* ==================== 3D WALLS, FLOOR & CEILING ==================== */
.room-wall-left {
  position: absolute;
  width: var(--len);
  height: calc(2 * var(--wall-y));
  margin-left: calc(-0.5 * var(--len));
  margin-top: calc(-1 * var(--wall-y));
  transform: translate3d(calc(-1 * var(--wall-x)), 0px, calc(-1 * var(--mid-z))) rotateY(90deg);
  transform-origin: center;
  background-color: var(--room-wall-bg, #161412);
  background-image:
    linear-gradient(to right, rgba(0,0,0,0.5) 0%, transparent 8%, transparent 92%, rgba(0,0,0,0.5) 100%),
    repeating-linear-gradient(90deg, rgba(255,255,255,0.012) 0px, rgba(255,255,255,0.012) 1px, transparent 1px, transparent 180px),
    linear-gradient(to bottom, #090807 0%, transparent 15%, transparent 85%, #050403 100%);
  border-bottom: 12px solid #28221a; /* Drewniana listwa przypodłogowa */
  border-top: 6px solid #3c3224; /* Szyna galeryjna pod sufitem */
  box-shadow: inset 0 0 90px rgba(0, 0, 0, 0.75);
  pointer-events: none;
}

.room-wall-right {
  position: absolute;
  width: var(--len);
  height: calc(2 * var(--wall-y));
  margin-left: calc(-0.5 * var(--len));
  margin-top: calc(-1 * var(--wall-y));
  transform: translate3d(var(--wall-x), 0px, calc(-1 * var(--mid-z))) rotateY(-90deg);
  transform-origin: center;
  background-color: var(--room-wall-bg, #161412);
  background-image:
    linear-gradient(to right, rgba(0,0,0,0.5) 0%, transparent 8%, transparent 92%, rgba(0,0,0,0.5) 100%),
    repeating-linear-gradient(90deg, rgba(255,255,255,0.012) 0px, rgba(255,255,255,0.012) 1px, transparent 1px, transparent 180px),
    linear-gradient(to bottom, #090807 0%, transparent 15%, transparent 85%, #050403 100%);
  border-bottom: 12px solid #28221a;
  border-top: 6px solid #3c3224;
  box-shadow: inset 0 0 90px rgba(0, 0, 0, 0.75);
  pointer-events: none;
}

.room-floor {
  position: absolute;
  width: calc(2 * var(--wall-x));
  height: var(--len);
  margin-left: calc(-1 * var(--wall-x));
  margin-top: calc(-0.5 * var(--len));
  transform: translate3d(0px, var(--wall-y), calc(-1 * var(--mid-z))) rotateX(90deg);
  transform-origin: center;
  background-color: #0f0d0b;
  background-image:
    repeating-linear-gradient(90deg, rgba(255,255,255,0.02) 0px, rgba(255,255,255,0.02) 2px, transparent 2px, transparent 80px),
    repeating-linear-gradient(0deg, rgba(0,0,0,0.4) 0px, rgba(0,0,0,0.4) 1px, transparent 1px, transparent 140px),
    radial-gradient(ellipse at 50% 50%, rgba(212, 175, 55, 0.08) 0%, transparent 85%);
  box-shadow: inset 0 0 120px rgba(0, 0, 0, 0.9);
  pointer-events: none;
}

.room-ceiling {
  position: absolute;
  width: calc(2 * var(--wall-x));
  height: var(--len);
  margin-left: calc(-1 * var(--wall-x));
  margin-top: calc(-0.5 * var(--len));
  transform: translate3d(0px, calc(-1 * var(--wall-y)), calc(-1 * var(--mid-z))) rotateX(-90deg);
  transform-origin: center;
  background-color: #0a0908;
  background-image:
    repeating-linear-gradient(90deg, transparent 0px, transparent 70px, rgba(212, 175, 55, 0.2) 70px, rgba(212, 175, 55, 0.2) 73px, transparent 73px, transparent calc(100% - 73px), rgba(212, 175, 55, 0.2) calc(100% - 73px), rgba(212, 175, 55, 0.2) calc(100% - 70px), transparent calc(100% - 70px));
  box-shadow: inset 0 0 110px rgba(0, 0, 0, 0.95);
  pointer-events: none;
}

/* Mosiężny próg architektoniczny między salami */
.floor-threshold {
  position: absolute;
  width: calc(2 * var(--wall-x));
  height: 24px;
  margin-left: calc(-1 * var(--wall-x));
  margin-top: -12px;
  transform: translate3d(0px, calc(var(--wall-y) - 1px), calc(-1 * var(--thresh-z))) rotateX(90deg);
  background: linear-gradient(90deg, #1e1912 0%, var(--gold) 20%, #fff2be 50%, var(--gold) 80%, #1e1912 100%);
  box-shadow: 0 0 25px rgba(212, 175, 55, 0.6);
  pointer-events: none;
}

/* ==================== 3D ART FRAMES NA ŚCIANACH ==================== */
.item-3d {
  position: absolute;
  width: var(--frame-w);
  height: var(--frame-h);
  margin-left: calc(-0.5 * var(--frame-w));
  margin-top: calc(-0.5 * var(--frame-h));
  transform-style: preserve-3d;
  will-change: transform, filter;
  cursor: pointer;
  touch-action: none;
}

.item-3d.is-left {
  transform: translate3d(calc(-1 * var(--wall-x) + 4px), var(--pos-y, 0px), calc(-1 * var(--item-z))) rotateY(var(--wall-rot));
}

.item-3d.is-right {
  transform: translate3d(calc(var(--wall-x) - 4px), var(--pos-y, 0px), calc(-1 * var(--item-z))) rotateY(calc(-1 * var(--wall-rot)));
}

/* Stalowe linki zawieszenia obrazu na szynie sufitowej */
.item-3d::before {
  content: '';
  position: absolute;
  top: -160px;
  left: 24px;
  width: 1px;
  height: 160px;
  background: linear-gradient(to bottom, rgba(212, 175, 55, 0.65) 0%, rgba(255, 255, 255, 0.3) 50%, rgba(255, 255, 255, 0.1) 100%);
  box-shadow: 0 0 3px rgba(212, 175, 55, 0.3);
  pointer-events: none;
}
.item-3d::after {
  content: '';
  position: absolute;
  top: -160px;
  right: 24px;
  width: 1px;
  height: 160px;
  background: linear-gradient(to bottom, rgba(212, 175, 55, 0.65) 0%, rgba(255, 255, 255, 0.3) 50%, rgba(255, 255, 255, 0.1) 100%);
  box-shadow: 0 0 3px rgba(212, 175, 55, 0.3);
  pointer-events: none;
}

.canvas-frame-3d {
  position: absolute;
  inset: 0;
  background: #ffffff;
  border-radius: 4px;
  padding: clamp(6px, 1.5vw, 12px);
  box-shadow:
    0 24px 50px -10px rgba(0, 0, 0, 0.9),
    0 45px 95px -20px rgba(0, 0, 0, 0.98),
    0 0 0 1px rgba(255, 255, 255, 0.12);
  transform-style: preserve-3d;
  transition: transform 0.35s cubic-bezier(0.16, 0.84, 0.24, 1), box-shadow 0.35s;
}

.canvas-frame-3d img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 2px;
  display: block;
  pointer-events: none;
}

/* Punktowe oświetlenie reflektora muzealnego */
.canvas-frame-3d::before {
  content: '';
  position: absolute;
  top: -300px;
  left: 50%;
  transform: translateX(-50%);
  width: 240%;
  height: 300px;
  clip-path: polygon(48% 0, 52% 0, 100% 100%, 0% 100%);
  background: linear-gradient(to bottom, rgba(255, 248, 220, 0.24) 0%, rgba(255, 255, 255, 0.03) 60%, transparent 100%);
  pointer-events: none;
}

/* Tabliczka muzealna pod dziełem */
.placard-3d {
  position: absolute;
  top: calc(100% + 14px);
  left: 50%;
  transform: translateX(-50%);
  background: rgba(18, 16, 14, 0.94);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.14);
  padding: clamp(6px, 1.2vw, 10px) clamp(10px, 2vw, 16px);
  border-radius: 6px;
  width: min(280px, 125%);
  text-align: center;
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.65);
  pointer-events: none;
}
.placard-3d h4 {
  font-family: var(--font-serif);
  font-size: clamp(15px, 2.2vw, 19px);
  font-weight: 400;
  color: #fff;
  line-height: 1.15;
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.placard-3d p {
  font-size: clamp(8px, 1.2vw, 10px);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
}

.item-3d:hover .canvas-frame-3d,
.item-3d:active .canvas-frame-3d {
  transform: scale(1.04) translateZ(30px);
  box-shadow:
    0 35px 70px -10px rgba(0, 0, 0, 0.98),
    0 0 25px rgba(212, 175, 55, 0.35),
    0 0 0 2px var(--gold);
}

/* ==================== 3D PORTALE I SEKCJE MIĘDZY SALAMI ==================== */
.portal-3d {
  position: absolute;
  width: var(--portal-w);
  height: var(--portal-h);
  margin-left: calc(-0.5 * var(--portal-w));
  margin-top: calc(-0.5 * var(--portal-h));
  transform-style: preserve-3d;
  transform: translate3d(0, 0, calc(-1 * var(--portal-z)));
  pointer-events: none;
}

.portal-arch {
  position: absolute;
  inset: 0;
  border: 3px solid rgba(212, 175, 55, 0.4);
  border-bottom: none;
  border-radius: 450px 450px 0 0;
  box-shadow:
    0 0 70px rgba(212, 175, 55, 0.25),
    inset 0 0 70px rgba(212, 175, 55, 0.18);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  padding-bottom: clamp(40px, 8vh, 80px);
  background: radial-gradient(ellipse at 50% 60%, rgba(212, 175, 55, 0.09) 0%, transparent 70%);
}

.portal-plaque {
  background: rgba(14, 13, 11, 0.96);
  border: 1px solid var(--gold);
  padding: clamp(12px, 2vh, 18px) clamp(22px, 4vw, 42px);
  border-radius: 99px;
  text-align: center;
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.85), 0 0 35px rgba(212, 175, 55, 0.35);
}
.portal-plaque span {
  font-size: clamp(8px, 1.2vw, 10px);
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 700;
  display: block;
  margin-bottom: 4px;
}
.portal-plaque h2 {
  font-family: var(--font-serif);
  font-size: clamp(22px, 3.5vw, 34px);
  color: #fff;
  font-weight: 400;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

/* Portal Finałowy */
.portal-3d.final-portal .portal-arch {
  border-color: var(--gold);
  box-shadow: 0 0 100px rgba(212, 175, 55, 0.5), inset 0 0 100px rgba(212, 175, 55, 0.3);
}

/* ==================== HUD / FLOATING CONTROLS ==================== */
.hud-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: clamp(60px, 8vh, 76px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(12px, 3vw, 40px);
  background: linear-gradient(to bottom, rgba(8, 7, 6, 0.95) 0%, rgba(8, 7, 6, 0.7) 60%, transparent 100%);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  pointer-events: auto;
}

.hud-brand {
  display: flex;
  align-items: center;
  gap: clamp(8px, 1.5vw, 14px);
  text-decoration: none;
}
.hud-monogram {
  font-family: var(--font-serif);
  font-size: clamp(26px, 3.5vw, 32px);
  font-style: italic;
  letter-spacing: -0.1em;
  color: #fff;
  text-decoration: none;
}
.hud-monogram span {
  color: var(--accent-light);
}
.hud-brand-text {
  display: flex;
  flex-direction: column;
}
.hud-brand-title {
  font-family: var(--font-serif);
  font-size: clamp(14px, 2vw, 18px);
  color: #fff;
  white-space: nowrap;
}
.hud-brand-sub {
  font-size: 8px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  white-space: nowrap;
}

/* Room Indicator pill */
.hud-room-btn {
  background: rgba(28, 25, 20, 0.9);
  border: 1px solid rgba(212, 175, 55, 0.45);
  padding: 6px clamp(12px, 2vw, 22px);
  border-radius: 99px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
  transition: all 0.25s;
  touch-action: manipulation;
}
.hud-room-btn:hover,
.hud-room-btn:active {
  background: rgba(45, 40, 32, 0.98);
  border-color: var(--gold);
  transform: translateY(-1px);
}
.hud-room-btn small {
  font-size: clamp(7px, 1vw, 9px);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  display: flex;
  align-items: center;
  gap: 5px;
}
.hud-room-btn strong {
  font-family: var(--font-serif);
  font-size: clamp(14px, 2vw, 18px);
  font-weight: 400;
  color: #fff;
  white-space: nowrap;
}

.hud-nav {
  display: flex;
  align-items: center;
  gap: clamp(6px, 1vw, 12px);
}
.hud-btn {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 8px clamp(10px, 1.5vw, 16px);
  border-radius: 99px;
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #fff;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.2s;
  white-space: nowrap;
  touch-action: manipulation;
}
.hud-btn:hover,
.hud-btn:active {
  background: rgba(255, 255, 255, 0.18);
  border-color: #fff;
}

.hud-switch-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent);
  color: #fff;
  padding: 8px clamp(10px, 1.5vw, 18px);
  border-radius: 99px;
  font-size: 9px;
  letter-spacing: 0.14em;
  font-weight: 700;
  text-transform: uppercase;
  text-decoration: none;
  transition: all 0.2s;
  white-space: nowrap;
  touch-action: manipulation;
}
.hud-switch-link:hover,
.hud-switch-link:active {
  background: var(--accent-light);
  transform: translateY(-1px);
}

/* ==================== BOTTOM HUD & MOBILE DOCKS ==================== */
.hud-bottom {
  position: fixed;
  bottom: clamp(12px, 2.5vh, 24px);
  left: clamp(12px, 3vw, 40px);
  right: clamp(12px, 3vw, 40px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  pointer-events: none;
}

.hud-guide {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(14, 13, 11, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 8px 16px;
  border-radius: 99px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  backdrop-filter: blur(12px);
  pointer-events: auto;
}
.hud-guide i {
  color: var(--gold);
}

.mobile-nav-dock {
  display: none;
  pointer-events: auto;
  gap: 8px;
  align-items: center;
}

.mob-nav-btn {
  background: rgba(22, 19, 16, 0.92);
  border: 1px solid rgba(212, 175, 55, 0.35);
  color: #fff;
  padding: 9px 14px;
  border-radius: 99px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.5);
  touch-action: manipulation;
}
.mob-nav-btn:active {
  background: rgba(45, 40, 32, 0.98);
  border-color: var(--gold);
  transform: scale(0.97);
}
.mob-nav-btn span {
  color: var(--gold);
}

.hud-depth-indicator {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(14, 13, 11, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 8px 16px;
  border-radius: 99px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  backdrop-filter: blur(12px);
  pointer-events: auto;
  white-space: nowrap;
}
.hud-depth-indicator b {
  color: var(--gold);
  font-family: var(--font-serif);
  font-size: 16px;
}

/* Room dropdown */
.hud-dropdown {
  position: fixed;
  top: clamp(68px, 9vh, 86px);
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  width: min(340px, 94vw);
  background: #141311;
  border: 1px solid var(--gold-glow);
  border-radius: 16px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.85);
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  backdrop-filter: blur(20px);
  pointer-events: auto;
  max-height: 75vh;
  overflow-y: auto;
}
.hud-dropdown-item {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 10px;
  border: 1px solid transparent;
  cursor: pointer;
  text-align: left;
  transition: all 0.2s;
  touch-action: manipulation;
}
.hud-dropdown-item:hover,
.hud-dropdown-item:active {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(212, 175, 55, 0.3);
}
.hud-dropdown-item.is-active {
  background: rgba(212, 175, 55, 0.18);
  border-color: var(--gold);
}
.hud-dropdown-item b {
  font-family: var(--font-serif);
  font-size: 20px;
  color: var(--gold);
}
.hud-dropdown-item span {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: #fff;
}
.hud-dropdown-item small {
  display: block;
  font-size: 10px;
  color: var(--text-muted);
}

/* ==================== 3D MODAL INSPECT ==================== */
.inspect-modal {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: rgba(6, 5, 4, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: none;
  width: 100vw;
  height: 100vh;
  max-width: 100vw;
  max-height: 100vh;
  padding: 0;
  display: none;
  touch-action: pan-y;
}
.inspect-modal[open] {
  display: flex;
}

.inspect-layout {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  width: 100%;
  height: 100%;
  touch-action: pan-y;
}
.inspect-media {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 40px;
  background: #000;
}
.inspect-media img {
  max-width: 90%;
  max-height: 85vh;
  object-fit: contain;
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.95);
  border-radius: 4px;
}
.inspect-info {
  padding: 80px 50px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-left: 1px solid rgba(255, 255, 255, 0.1);
  background: #11100e;
}
.inspect-tag {
  font-size: 10px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 700;
  margin-bottom: 12px;
}
.inspect-title {
  font-family: var(--font-serif);
  font-size: clamp(34px, 4vw, 56px);
  font-weight: 400;
  color: #fff;
  line-height: 1.05;
  margin-bottom: 24px;
}
.inspect-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  padding: 20px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: 24px;
}
.spec-box dt {
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
}
.spec-box dd {
  font-size: 13px;
  color: #fff;
  font-weight: 600;
}
.inspect-desc {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-muted);
  margin-bottom: 32px;
}
.inquire-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: var(--accent);
  color: #fff;
  padding: 14px 28px;
  border-radius: 99px;
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-weight: 700;
  transition: background 0.25s;
  text-decoration: none;
  touch-action: manipulation;
}
.inquire-btn:hover,
.inquire-btn:active {
  background: var(--accent-light);
}

.modal-close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  z-index: 50;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
  font-size: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
  touch-action: manipulation;
}
.modal-close-btn:hover,
.modal-close-btn:active {
  background: var(--accent);
  transform: rotate(90deg);
}

/* ==================== MOBILE ADJUSTMENTS ==================== */
@media (max-width: 900px) {
  .inspect-layout {
    grid-template-columns: 1fr;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  .inspect-media {
    padding: 60px 20px 20px;
  }
  .inspect-info {
    padding: 24px 20px 60px;
    border-left: none;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
  }
}

@media (max-width: 760px) {
  .hud-guide {
    display: none;
  }
  .mobile-nav-dock {
    display: flex;
  }
  .hud-brand-sub {
    display: none;
  }
  .hud-room-btn strong {
    font-size: 14px;
  }
}

@media (max-width: 460px) {
  .hud-brand-title {
    display: none;
  }
  .hud-switch-link span {
    display: none;
  }
  .hud-switch-link {
    padding: 8px 12px;
  }
  .hud-btn {
    padding: 8px 12px;
  }
  .hud-room-btn {
    padding: 6px 12px;
  }
}