/* Meninges viewer — AXON night/day palette (matches synapse + neuron atlas) */

:root,
[data-theme='night'] {
  --bg: #020810;
  --bg-elevated: rgba(6, 14, 26, 0.88);
  --text: #c8f0e0;
  --text-muted: rgba(200, 240, 224, 0.45);
  --text-body: rgba(200, 210, 220, 0.88);
  --border: rgba(126, 207, 179, 0.42);
  --accent: #00ff8c;
  --accent-soft: rgba(0, 255, 140, 0.12);
  --scene-bg: #020810;
  --popup-bg: rgba(6, 14, 26, 0.78);
  --card-bg: rgba(255, 255, 255, 0.04);
  --card-hover: rgba(0, 255, 140, 0.1);
  --font: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-display: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
}

[data-theme='day'] {
  --bg: #faf8f4;
  --bg-elevated: rgba(255, 254, 244, 0.95);
  --text: #2a1a08;
  --text-muted: rgba(42, 26, 8, 0.55);
  --text-body: #2a1a08;
  --border: rgba(10, 10, 10, 0.85);
  --accent: #e05a10;
  --accent-soft: rgba(224, 90, 16, 0.1);
  --scene-bg: #faf8f4;
  --popup-bg: #fffef4;
  --card-bg: rgba(255, 255, 255, 0.72);
  --card-hover: rgba(224, 90, 16, 0.08);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
}

body.cranial-nerves-structure-page {
  margin: 0;
  width: 100%;
  min-height: 100vh;
  min-height: 100svh;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
}

body.cranial-nerves-structure-page #page {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100svh;
  position: relative;
  z-index: 1;
}

.cranial-nerves-structure-main {
  position: relative;
  z-index: 2;
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  min-height: 0;
  width: 100%;
  box-sizing: border-box;
  padding-top: calc(60px + env(safe-area-inset-top, 0px));
  padding-bottom: env(safe-area-inset-bottom, 0px);
  overflow: hidden;
  background: var(--bg);
}

a {
  color: inherit;
  text-decoration: none;
}

/* 3D viewer page */
.page--viewer,
#app {
  position: relative;
  overflow: hidden;
  width: 100%;
  height: 100%;
  flex: 1 1 auto;
  min-height: 0;
  margin: 0;
  background: var(--bg);
  color: var(--text);
}

#scene {
  display: block;
  width: 100%;
  height: 100%;
  cursor: grab;
  background: var(--scene-bg);
  touch-action: none;
}

.loading-banner,
.viewer-hint {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  margin: 0;
  padding: 0.45rem 0.85rem;
  border-radius: 4px;
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  pointer-events: none;
  backdrop-filter: blur(10px);
}

.loading-banner {
  top: 1.25rem;
}

/* Clinical info panel — synapse / neuron style */
.info-panel {
  position: absolute;
  top: 50%;
  right: max(12px, env(safe-area-inset-right, 0px));
  transform: translateY(-50%);
  z-index: 80;
  width: min(280px, calc(100vw - 24px));
  max-height: min(86vh, 680px);
  padding: 28px 24px;
  overflow-x: hidden;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid rgba(126, 207, 179, 0.42);
  border-radius: 6px;
  background: rgba(6, 14, 26, 0.78);
  box-shadow:
    0 0 0 1px rgba(0, 255, 204, 0.1),
    0 10px 36px rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(10px);
}

[data-theme='day'] .info-panel {
  background: #fffef4;
  border: 3px solid #0a0a0a;
  border-radius: 4px;
  box-shadow: 6px 6px 0 rgba(10, 10, 10, 0.12);
}

.info-panel__close {
  position: absolute;
  top: 0;
  right: 0;
  margin: 0;
  padding: 6px 10px;
  border: none;
  background: transparent;
  cursor: pointer;
  font-family: inherit;
  font-size: 11px;
  letter-spacing: 0.2em;
  line-height: 1;
  color: rgba(160, 220, 195, 0.75);
}

.info-panel__close:hover {
  color: rgba(200, 245, 225, 0.95);
}

[data-theme='day'] .info-panel__close {
  color: #0a0a0a;
  font-weight: 700;
}

.info-panel__category {
  margin: 0 2rem 0.35rem 0;
  font-size: 0.58rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
}

.info-panel__title {
  margin: 0 2rem 16px 0;
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  line-height: 1.45;
  color: rgba(255, 255, 255, 0.92);
}

[data-theme='day'] .info-panel__title {
  color: #0a0a0a;
  font-weight: 800;
}

.info-panel__overview,
.info-panel__detail {
  margin: 0;
  font-size: 0.68rem;
  font-weight: 300;
  line-height: 1.75;
  letter-spacing: 0.02em;
  color: rgba(200, 200, 200, 0.88);
  white-space: pre-line;
}

[data-theme='day'] .info-panel__overview,
[data-theme='day'] .info-panel__detail {
  color: #0a0a0a;
  font-weight: 600;
}

.info-panel__more {
  margin: 0.75rem 0 0;
  padding: 0;
  border: none;
  background: transparent;
  color: var(--accent);
  font: inherit;
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
}

.info-panel__more:hover {
  text-decoration: underline;
}

.info-panel__detail-wrap {
  margin-top: 0.65rem;
  padding-top: 0.65rem;
  border-top: 1px solid rgba(126, 207, 179, 0.22);
}

[data-theme='day'] .info-panel__detail-wrap {
  border-top-color: rgba(10, 10, 10, 0.15);
}

.info-panel__related-heading {
  margin: 1rem 0 0.45rem;
  font-size: 0.58rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.info-panel__related {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.info-panel__chip {
  padding: 0.28rem 0.55rem;
  border: 1px solid rgba(180, 200, 220, 0.25);
  border-radius: 4px;
  background: rgba(0, 20, 32, 0.45);
  color: var(--text-body);
  font: inherit;
  font-size: 0.58rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.info-panel__chip:hover {
  color: var(--accent);
  border-color: rgba(0, 255, 204, 0.45);
  background: rgba(0, 40, 50, 0.55);
}

[data-theme='day'] .info-panel__chip {
  border: 1px solid rgba(42, 26, 8, 0.22);
  background: rgba(255, 255, 255, 0.72);
  color: #3a2818;
}

[data-theme='day'] .info-panel__chip:hover {
  border-color: rgba(224, 90, 16, 0.45);
  background: rgba(255, 250, 240, 0.95);
  color: #e05a10;
}

.viewer-tip {
  position: absolute;
  left: 50%;
  top: 1.25rem;
  z-index: 80;
  transform: translateX(-50%);
  display: none;
  align-items: center;
  gap: 0.75rem;
  max-width: min(34rem, calc(100vw - 2rem));
  padding: 0.55rem 0.65rem 0.55rem 0.9rem;
  border: 1px solid rgba(126, 207, 179, 0.42);
  border-radius: 6px;
  background: rgba(6, 14, 26, 0.88);
  backdrop-filter: blur(10px);
  box-shadow: 0 10px 36px rgba(0, 0, 0, 0.45);
  pointer-events: auto;
}

[data-theme='day'] .viewer-tip {
  background: #fffef4;
  border: 3px solid #0a0a0a;
  border-radius: 4px;
  box-shadow: 6px 6px 0 rgba(10, 10, 10, 0.12);
}

.viewer-tip.is-visible,
.viewer-tip:not([hidden]) {
  display: flex;
}

.viewer-tip[hidden] {
  display: none !important;
}

.viewer-tip__text {
  margin: 0;
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  line-height: 1.45;
  color: var(--text-body);
}

.viewer-tip__dismiss {
  flex-shrink: 0;
  padding: 0.35rem 0.65rem;
  border: 1px solid rgba(0, 255, 204, 0.4);
  border-radius: 4px;
  background: rgba(0, 30, 40, 0.5);
  color: #7af0e0;
  font: inherit;
  font-size: 0.52rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  cursor: pointer;
}

.viewer-tip__dismiss:hover {
  background: rgba(0, 255, 204, 0.12);
  border-color: rgba(0, 255, 204, 0.6);
}

[data-theme='day'] .viewer-tip__dismiss {
  border: 1px solid rgba(224, 90, 16, 0.4);
  background: rgba(255, 255, 255, 0.55);
  color: #b04008;
}

.copyright {
  position: absolute;
  right: max(1rem, env(safe-area-inset-right, 0px));
  bottom: max(0.75rem, env(safe-area-inset-bottom, 0px));
  z-index: 15;
  margin: 0;
  font-size: 0.58rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  pointer-events: none;
  user-select: none;
  white-space: nowrap;
}

.structure-label {
  position: absolute;
  z-index: 22;
  left: 0;
  top: 0;
  max-width: min(16rem, 70vw);
  padding: 5px 12px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  line-height: 1.35;
  pointer-events: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

[data-theme='day'] .structure-label {
  background: #fffef4;
  border: 3px solid #0a0a0a;
  color: #0a0a0a;
  font-weight: 600;
}

@media (max-width: 640px) {
  .info-panel {
    top: auto;
    bottom: 2.35rem;
    left: 0.75rem;
    right: 0.75rem;
    width: auto;
    max-height: 36vh;
    transform: none;
  }

  .viewer-tip {
    top: 0.75rem;
    left: 0.75rem;
    right: 0.75rem;
    transform: none;
    max-width: none;
    flex-direction: column;
    align-items: stretch;
  }

  .copyright {
    display: block;
    right: max(0.65rem, env(safe-area-inset-right, 0px));
    bottom: max(0.5rem, env(safe-area-inset-bottom, 0px));
    font-size: 0.5rem;
    letter-spacing: 0.08em;
  }

  #scene,
  #gl {
    touch-action: none;
  }
}

/* Brainstem legacy popup → meninges info-panel look */
.structure-popup {
  position: absolute;
  top: 50%;
  right: max(12px, env(safe-area-inset-right, 0px));
  transform: translateY(-50%);
  z-index: 80;
  width: min(280px, calc(100vw - 24px));
  max-height: min(86vh, 680px);
  padding: 28px 24px;
  overflow: auto;
  border: 1px solid rgba(126, 207, 179, 0.42);
  border-radius: 6px;
  background: rgba(6, 14, 26, 0.78);
  box-shadow: 0 0 0 1px rgba(0, 255, 204, 0.1), 0 10px 36px rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(10px);
  color: rgba(200, 200, 200, 0.88);
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
}
[data-theme='day'] .structure-popup {
  background: #fffef4;
  border: 3px solid #0a0a0a;
  border-radius: 4px;
  box-shadow: 6px 6px 0 rgba(10, 10, 10, 0.12);
  color: #0a0a0a;
}
.structure-popup__close {
  position: absolute; top: 0; right: 0; margin: 0; padding: 6px 10px;
  border: none; background: transparent; cursor: pointer;
  font-size: 11px; letter-spacing: 0.2em; color: rgba(160, 220, 195, 0.75);
}
[data-theme='day'] .structure-popup__close { color: #0a0a0a; font-weight: 700; }
.structure-popup__title {
  margin: 0 2rem 16px 0; font-size: 0.65rem; letter-spacing: 0.35em;
  text-transform: uppercase; color: rgba(255,255,255,0.92);
}
[data-theme='day'] .structure-popup__title { color: #0a0a0a; font-weight: 800; }
.structure-popup__body {
  margin: 0; font-size: 0.68rem; line-height: 1.75; white-space: pre-line;
}
.structure-popup__more {
  display: inline-block; margin: 0.75rem 0 0; padding: 0; border: none;
  background: transparent; color: #7af0e0; font: inherit; font-size: 0.62rem;
  letter-spacing: 0.12em; text-transform: uppercase; cursor: pointer;
}
[data-theme='day'] .structure-popup__more { color: #e05a10; }
.structure-popup__detail-wrap {
  margin-top: 0.65rem; padding-top: 0.65rem;
  border-top: 1px solid rgba(126, 207, 179, 0.22);
}