/* A single, compact exit language across every GAIA mode. */
.mode-exit-control.mode-exit-control,
.gx-layer[data-return-to="novel"] .gx-close.mode-exit-control,
body.novel-open .novel-topbar #novel-close-button.mode-exit-control {
  --mode-exit-rgb: 156, 232, 215;
  position: relative;
  display: inline-grid;
  grid-template-columns: 30px auto;
  flex: 0 0 auto;
  gap: 9px;
  align-items: center;
  justify-content: start;
  width: auto;
  min-width: 0;
  max-width: calc(100vw - 24px);
  height: 46px;
  min-height: 46px;
  padding: 0 15px 0 8px;
  overflow: hidden;
  border: 0;
  border-radius: 0;
  clip-path: polygon(9px 0, 100% 0, 100% calc(100% - 9px), calc(100% - 9px) 100%, 0 100%, 0 9px);
  color: rgba(242, 252, 250, 0.82);
  text-align: left;
  background:
    linear-gradient(112deg, rgba(var(--mode-exit-rgb), 0.12), transparent 54%),
    rgba(3, 13, 20, 0.72);
  box-shadow:
    inset 0 0 0 1px rgba(var(--mode-exit-rgb), 0.3),
    inset 0 1px rgba(255, 255, 255, 0.06),
    0 10px 28px rgba(0, 5, 12, 0.2);
  -webkit-backdrop-filter: blur(13px) saturate(1.14);
  backdrop-filter: blur(13px) saturate(1.14);
  cursor: pointer;
  font: 650 11px/1 var(--font-ja, "Yu Gothic UI", sans-serif);
  letter-spacing: 0.11em;
  white-space: nowrap;
  isolation: isolate;
  transition:
    color 220ms ease,
    background-color 220ms ease,
    box-shadow 260ms ease,
    transform 220ms cubic-bezier(0.2, 0.75, 0.25, 1);
}

.mode-exit-control.mode-exit-control::before,
.gx-layer[data-return-to="novel"] .gx-close.mode-exit-control::before,
body.novel-open .novel-topbar #novel-close-button.mode-exit-control::before {
  display: grid;
  width: 30px;
  height: 30px;
  margin: 0;
  border: 1px solid rgba(var(--mode-exit-rgb), 0.28);
  color: rgb(var(--mode-exit-rgb));
  background: rgba(var(--mode-exit-rgb), 0.07);
  content: "←";
  font: 500 15px/1 ui-monospace, Consolas, monospace;
  letter-spacing: 0;
  place-items: center;
  transition: color 220ms ease, background-color 220ms ease, transform 240ms cubic-bezier(0.2, 0.75, 0.25, 1);
}

.mode-exit-control.mode-exit-control::after,
.gx-layer[data-return-to="novel"] .gx-close.mode-exit-control::after,
body.novel-open .novel-topbar #novel-close-button.mode-exit-control::after {
  position: absolute;
  right: 9px;
  bottom: 0;
  width: 30%;
  height: 1px;
  content: "";
  background: linear-gradient(90deg, transparent, rgba(var(--mode-exit-rgb), 0.92));
  pointer-events: none;
  transition: width 260ms ease;
}

.mode-exit-control.mode-exit-control:hover,
.mode-exit-control.mode-exit-control:focus-visible,
.gx-layer[data-return-to="novel"] .gx-close.mode-exit-control:hover,
.gx-layer[data-return-to="novel"] .gx-close.mode-exit-control:focus-visible,
body.novel-open .novel-topbar #novel-close-button.mode-exit-control:hover,
body.novel-open .novel-topbar #novel-close-button.mode-exit-control:focus-visible {
  color: #fff;
  background:
    linear-gradient(112deg, rgba(var(--mode-exit-rgb), 0.2), transparent 62%),
    rgba(5, 21, 30, 0.88);
  box-shadow:
    inset 0 0 0 1px rgba(var(--mode-exit-rgb), 0.68),
    inset 0 1px rgba(255, 255, 255, 0.1),
    0 14px 34px rgba(0, 5, 12, 0.3),
    0 0 24px rgba(var(--mode-exit-rgb), 0.08);
  outline: none;
  transform: translateY(-1px);
}

.mode-exit-control.mode-exit-control:hover::before,
.mode-exit-control.mode-exit-control:focus-visible::before,
.gx-layer[data-return-to="novel"] .gx-close.mode-exit-control:hover::before,
.gx-layer[data-return-to="novel"] .gx-close.mode-exit-control:focus-visible::before,
body.novel-open .novel-topbar #novel-close-button.mode-exit-control:hover::before,
body.novel-open .novel-topbar #novel-close-button.mode-exit-control:focus-visible::before {
  color: #fff;
  background: rgba(var(--mode-exit-rgb), 0.16);
  transform: translateX(-2px);
}

.mode-exit-control.mode-exit-control:hover::after,
.mode-exit-control.mode-exit-control:focus-visible::after,
.gx-layer[data-return-to="novel"] .gx-close.mode-exit-control:hover::after,
.gx-layer[data-return-to="novel"] .gx-close.mode-exit-control:focus-visible::after,
body.novel-open .novel-topbar #novel-close-button.mode-exit-control:hover::after,
body.novel-open .novel-topbar #novel-close-button.mode-exit-control:focus-visible::after {
  width: 68%;
}

.mode-exit-control.mode-exit-control:focus-visible {
  outline: 2px solid rgba(var(--mode-exit-rgb), 0.72);
  outline-offset: 3px;
}

.mode-exit-control.mode-exit-control:active {
  transform: translateY(0) scale(0.98);
}

#intro-path-back,
#intro-architecture-back,
#sound-close { --mode-exit-rgb: 140, 233, 207; }
#status-home-button { --mode-exit-rgb: var(--accent-rgb, 142, 216, 255); }
#japan-close { --mode-exit-rgb: var(--map-accent-rgb, 148, 234, 209); }
#gx-close { --mode-exit-rgb: 162, 241, 220; }
#space-close { --mode-exit-rgb: var(--space-rgb, 151, 190, 255); }
#novel-close-button { --mode-exit-rgb: var(--novel-cyan, 135, 226, 244); }

#japan-close,
#gx-close,
#space-close {
  position: absolute;
}

#novel-close-button {
  position: fixed;
}

.gx-layer[data-return-to="novel"] .gx-close.mode-exit-control {
  --mode-exit-rgb: 162, 241, 220;
  position: absolute;
}

body.novel-open .novel-topbar #novel-close-button.mode-exit-control {
  --mode-exit-rgb: var(--novel-cyan, 135, 226, 244);
  position: fixed;
}

body.sound-mode-open .status {
  visibility: hidden;
  pointer-events: none;
}

@media (max-width: 720px) {
  .mode-exit-control.mode-exit-control,
  .gx-layer[data-return-to="novel"] .gx-close.mode-exit-control,
  body.novel-open .novel-topbar #novel-close-button.mode-exit-control {
    grid-template-columns: 28px auto;
    gap: 8px;
    height: 44px;
    min-height: 44px;
    padding: 0 12px 0 7px;
    font-size: 10px;
  }

  .mode-exit-control.mode-exit-control::before,
  .gx-layer[data-return-to="novel"] .gx-close.mode-exit-control::before,
  body.novel-open .novel-topbar #novel-close-button.mode-exit-control::before {
    width: 28px;
    height: 28px;
    font-size: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .mode-exit-control.mode-exit-control,
  .mode-exit-control.mode-exit-control::before,
  .mode-exit-control.mode-exit-control::after {
    transition-duration: 0.01ms;
  }
}