/**
 * gesture-interface.css
 * Scoped under .gc-container (About embed + standalone gesture page).
 * Standalone: body.gc-page + .gc-container--standalone
 */

/* Light theme tokens */
body.gc-page,
.gc-container {
  --bg-gallery: #f1f2f4;
  --text-primary: #1a1a1a;
  --text-secondary: #5c5c5c;
  --brand-primary: #dda22f;
  --modal-backdrop: rgba(255, 255, 255, 0.9);
  --gc-border-subtle: #e5e5e5;
  --gc-panel-border: rgba(26, 26, 26, 0.12);
  --gc-panel-surface: #ffffff;
  --gc-panel-shadow: 0 10px 36px rgba(0, 0, 0, 0.06);
  --gc-panel-shadow-focus: 0 16px 48px rgba(0, 0, 0, 0.08);
  --gc-modal-shadow: 0 16px 48px rgba(0, 0, 0, 0.08);
}

.gc-container {
  font-family: var(--font-ui, 'Switzer', system-ui, -apple-system, sans-serif);
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  position: relative;
  width: 100%;
  color: var(--text-primary);
  background: var(--bg-gallery);
  border-radius: 2px;
  overflow: hidden;
}

/* Embedded showcase (About) */
.gc-container:not(.gc-container--standalone) {
  background: var(--bg-gallery);
}

.gc-container:not(.gc-container--standalone) .gc-experience {
  position: relative;
  inset: auto;
  width: 100%;
  height: min(85vh, 720px);
  min-height: 420px;
}

.gc-container:not(.gc-container--standalone) .gc-stage,
.gc-container:not(.gc-container--standalone) .gc-spatial-hub,
.gc-container:not(.gc-container--standalone) .gc-gallery-scene {
  height: 100%;
}

/* Standalone full-viewport page */
body.gc-page {
  background: var(--bg-gallery);
  color: var(--text-primary);
}

/* Gallery overlay: header floats above canvas; only links are interactive */
body.gc-page .site-header.ph-chrome {
  pointer-events: none;
}

body.gc-page .site-header.ph-chrome .nav-home,
body.gc-page .site-header.ph-chrome .ph-gesture-status {
  pointer-events: auto;
}

body.gc-page .ph-gesture-status {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.75rem;
  border-radius: 100px;
  font-family: var(--font-ui, 'Switzer', system-ui, -apple-system, sans-serif);
  font-size: 0.58rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: 0.5px solid #e5e5e5;
  background: #ffffff;
  box-shadow: 0 10px 36px rgba(0, 0, 0, 0.06);
  color: #666666;
}

.gc-container--standalone .gc-experience {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  height: 100dvh;
}

/* ── Base tokens ── */

.gc-container .gc-experience {
  position: relative;
  width: 100%;
  height: 100%;
  background: var(--bg-gallery);
  touch-action: none !important;
  user-select: none !important;
  -webkit-user-select: none !important;
}

.gc-container .gc-stage {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.gc-container .gc-spatial-hub {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.gc-container .gc-gallery-scene {
  width: 100%;
  height: 100%;
  overflow: visible;
}

.gc-container .gc-gallery {
  --gc-focus: 6;
  --gc-ring-z: 800px;
  --gc-motion-duration: 1.2s;
  --gc-motion-ease: cubic-bezier(0.19, 1, 0.22, 1);
  --gc-photo-fade-duration: 0.8s;
  touch-action: none !important;
  user-select: none !important;
  -webkit-user-select: none !important;
}

.gc-container .gc-panel {
  --panel-angle: 0;
  margin: 0;
  cursor: pointer;
  pointer-events: auto;
  background: none;
  border: none;
  box-shadow: none;
}

.gc-container .gc-panel-glass {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 2px;
  overflow: hidden;
  background: none;
  border: none;
  box-shadow: none;
}

.gc-container .gc-panel-media {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.gc-container .gc-panel-photo {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
}

.gc-container .gc-panel-photo-thumb {
  opacity: 1;
  filter: blur(20px);
  transform: scale(1.08);
  transform-origin: center center;
  transition:
    opacity var(--gc-photo-fade-duration) var(--gc-motion-ease),
    filter var(--gc-photo-fade-duration) var(--gc-motion-ease);
}

.gc-container .gc-panel-photo-full {
  opacity: 0;
  transition: opacity var(--gc-photo-fade-duration) var(--gc-motion-ease);
}

.gc-container .gc-panel-glass.is-full-loaded .gc-panel-photo-thumb {
  opacity: 0;
  filter: blur(0);
  pointer-events: none;
}

.gc-container .gc-panel-glass.is-full-loaded .gc-panel-photo-full {
  opacity: 1;
}

.gc-container .gc-panel-glass.is-full-loaded-instant .gc-panel-photo-thumb,
.gc-container .gc-panel-glass.is-full-loaded-instant .gc-panel-photo-full {
  transition: none;
}

/* ══════════════════════════════════════════════════════════════════════════
   DESKTOP 3D ENGINE (width > 768px)
   ══════════════════════════════════════════════════════════════════════════ */

@media (min-width: 769px) {
  html:has(body.gc-page),
  body.gc-page {
    overflow: hidden;
    height: 100%;
  }

  .gc-container .gc-experience,
  .gc-container .gc-stage {
    height: 100%;
    overflow: visible;
  }

  .gc-container .gc-gallery,
  .gc-container .gc-gallery-scene,
  .gc-container .gc-spatial-hub {
    scroll-snap-type: none !important;
    overflow: visible !important;
    touch-action: none !important;
  }

  .gc-container .gc-stage,
  .gc-container .gc-spatial-hub,
  .gc-container .gc-gallery-scene {
    display: grid;
    place-items: center;
  }

  .gc-container .gc-gallery-scene {
    position: relative;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
    perspective: 3000px;
    perspective-origin: 50% 50%;
    transition: transform 0.5s var(--gc-motion-ease);
    pointer-events: none;
  }

  .gc-container .gc-spatial-hub {
    pointer-events: auto;
  }

  .gc-container .gesture-catcher {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: auto;
    touch-action: none;
    cursor: grab;
  }

  .gc-container .gesture-catcher.is-active {
    cursor: grabbing;
  }

  .gc-container .gc-gallery {
    --gc-panel-w: 240px;
    --gc-panel-h: 320px;
    position: relative;
    z-index: 1;
    display: grid;
    place-items: center;
    background: var(--bg-gallery);
    width: 100%;
    height: 100vh;
    height: 100dvh;
    transform-style: preserve-3d;
    transform: rotateY(0deg);
    pointer-events: none;
    will-change: transform;
    transition: none;
  }

  .gc-container:not(.gc-container--standalone) .gc-gallery {
    height: 100%;
    min-height: 420px;
  }

  .gc-container .gc-gallery.is-snapping {
    transition: transform var(--gc-motion-duration) var(--gc-motion-ease);
  }

  .gc-container .gc-gallery.is-direct,
  .gc-container .gc-gallery.is-direct .gc-panel,
  .gc-container .gc-gallery.is-direct .gc-panel-glass {
    transition: none !important;
  }

  .gc-container .gc-gallery.is-direct {
    will-change: transform;
  }

  .gc-container .gc-gallery.is-direct .gc-panel {
    will-change: transform, opacity, filter;
  }

  .gc-container .gc-gallery-ring {
    position: relative;
    width: 0;
    height: 0;
    transform-style: preserve-3d;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    pointer-events: none;
  }

  .gc-container .gc-panel {
    position: absolute;
    left: 50%;
    top: 50%;
    width: var(--gc-panel-w);
    height: var(--gc-panel-h);
    margin-left: calc(var(--gc-panel-w) / -2);
    margin-top: calc(var(--gc-panel-h) / -2);
    overflow: hidden;
    transform-style: preserve-3d;
    transform-origin: center center;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    border: 1px solid var(--gc-panel-border);
    background: var(--gc-panel-surface);
    box-shadow: var(--gc-panel-shadow);
    cursor: pointer;
    pointer-events: auto;
    z-index: calc(22 - var(--gc-delta-abs, 0) * 2);
    transition:
      transform var(--gc-motion-duration) var(--gc-motion-ease),
      opacity var(--gc-motion-duration) var(--gc-motion-ease),
      filter var(--gc-motion-duration) var(--gc-motion-ease);
  }

  .gc-container .gc-panel:hover {
    cursor: pointer;
  }

  .gc-container .gc-panel:hover .gc-panel-glass {
    transform: scale(1.02);
  }

  .gc-container .gc-panel:not(.is-focused) {
    opacity: 0.72;
    filter: saturate(0.88);
  }

  .gc-container .gc-panel.is-focused {
    opacity: 1;
    border: 1px solid var(--gc-border-subtle);
    filter: none;
    z-index: 50;
    box-shadow: var(--gc-panel-shadow-focus);
  }

  .gc-container .gc-panel-glass,
  .gc-container .gc-panel-media {
    pointer-events: none;
  }

  .gc-container .gc-panel-glass {
    position: absolute;
    inset: 0;
    overflow: hidden;
    background: var(--gc-panel-surface);
    border: 1px solid var(--gc-border-subtle);
    transition:
      transform var(--gc-motion-duration) var(--gc-motion-ease),
      box-shadow var(--gc-motion-duration) var(--gc-motion-ease);
  }

  .gc-container .gc-panel-media,
  .gc-container .gc-panel-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center center;
  }

  .gc-container .gc-panel.is-focused .gc-panel-glass {
    transform: translateZ(65px);
    box-shadow: var(--gc-panel-shadow-focus);
    border-color: var(--gc-panel-border);
  }

  .gc-container .gc-panel.is-focused:hover .gc-panel-glass {
    transform: translateZ(65px) scale(1.02);
  }
}

/* Mobile-only scroll arrows (injected by gesture-interface.js) */
.gc-container .gc-mobile-nav {
  display: none;
}

/* ══════════════════════════════════════════════════════════════════════════
   MOBILE FLEX ENGINE (width ≤ 768px)
   ══════════════════════════════════════════════════════════════════════════ */

@media (max-width: 768px) {
  .gc-container .gc-mobile-nav {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 0.75rem;
    z-index: 5;
    pointer-events: none;
  }

  .gc-container .gc-mobile-nav__btn {
    pointer-events: auto;
    width: 40px;
    height: 40px;
    border-radius: 999px;
    border: 1px solid var(--gc-border-subtle);
    background: rgba(255, 255, 255, 0.82);
    color: var(--text-primary);
    font: inherit;
    line-height: 1;
    display: grid;
    place-items: center;
    box-shadow: 0 10px 22px rgba(26, 26, 26, 0.12);
  }

  .gc-container .gesture-catcher {
    display: none;
    pointer-events: none !important;
  }

  .gc-container .gc-experience,
  .gc-container .gc-stage,
  .gc-container .gc-spatial-hub,
  .gc-container .gc-gallery-scene {
    display: block;
    overflow: visible;
    height: auto;
    min-height: 100vh;
    min-height: 100dvh;
    pointer-events: auto;
  }

  .gc-container:not(.gc-container--standalone) .gc-experience,
  .gc-container:not(.gc-container--standalone) .gc-stage,
  .gc-container:not(.gc-container--standalone) .gc-spatial-hub,
  .gc-container:not(.gc-container--standalone) .gc-gallery-scene {
    min-height: 420px;
    height: auto;
  }

  .gc-container .gc-gallery-scene {
    position: relative;
    perspective: none;
    transform-style: flat;
    transform: none;
    transition: none;
  }

  .gc-container .gc-gallery {
    display: flex;
    flex-flow: row nowrap;
    align-items: center;
    justify-content: flex-start;
    background: var(--bg-gallery);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    pointer-events: auto;
    touch-action: pan-x !important;
    user-select: none !important;
    -webkit-user-select: none !important;
    width: 100%;
    max-width: 100%;
    height: auto;
    min-height: 60vh;
    position: relative;
    top: auto;
    left: auto;
    transform: none;
    perspective: none;
    transform-style: flat;
    gap: 1rem;
    padding: 0 10vw;
    scrollbar-width: none;
    -ms-overflow-style: none;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-x: contain;
    scroll-snap-stop: always;
    will-change: scroll-position;
    transition: none;
  }

  .gc-container .gc-gallery::-webkit-scrollbar {
    display: none;
  }

  .gc-container .gc-gallery-ring {
    display: contents;
    position: static;
    width: auto;
    height: auto;
    transform-style: flat;
  }

  .gc-container .gc-panel {
    position: relative;
    left: auto;
    top: auto;
    margin: 0;
    flex: 0 0 80vw;
    width: 80vw;
    height: 60vh;
    max-width: 80vw;
    transform: none;
    transform-style: flat;
    perspective: none;
    scroll-snap-align: center;
    flex-shrink: 0;
    opacity: 1;
    filter: none;
    border: 1px solid var(--gc-panel-border);
    background: var(--gc-panel-surface);
    box-shadow: var(--gc-panel-shadow);
    transition: none;
    z-index: auto;
  }

  .gc-container .gc-panel.is-focused {
    opacity: 1;
    filter: none;
    border-color: var(--gc-border-subtle);
    box-shadow: var(--gc-panel-shadow-focus);
    z-index: 1;
  }

  .gc-container .gc-panel.is-focused .gc-panel-glass {
    transform: none;
    box-shadow: none;
    border: 1px solid var(--gc-border-subtle);
  }
}

/* ══════════════════════════════════════════════════════════════════════════
   CLICK-TO-EXPAND MODAL
   ══════════════════════════════════════════════════════════════════════════ */

body.gc-modal-open {
  overflow: hidden;
}

.gc-container #modal-overlay.gc-modal-overlay {
  --gc-modal-duration: 0.5s;
  --gc-modal-ease: cubic-bezier(0.19, 1, 0.22, 1);
  position: fixed;
  inset: 0;
  z-index: 200;
  display: grid;
  place-items: center;
  padding: clamp(1rem, 4vw, 3rem);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition:
    opacity var(--gc-modal-duration) var(--gc-modal-ease),
    visibility 0s linear var(--gc-modal-duration);
}

.gc-container #modal-overlay.gc-modal-overlay.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transition:
    opacity var(--gc-modal-duration) var(--gc-modal-ease),
    visibility 0s linear 0s;
}

.gc-container #modal-overlay .gc-modal-backdrop {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: #ffffff;
}

.gc-container #modal-overlay .gc-modal-stage {
  position: relative;
  z-index: 1;
  margin: 0;
  max-width: min(92vw, 720px);
  max-height: min(88vh, 960px);
  background: transparent;
  border: none;
  border-radius: 2px;
  transform: scale(0.95);
  opacity: 0;
  transition:
    transform var(--gc-modal-duration) var(--gc-modal-ease),
    opacity var(--gc-modal-duration) var(--gc-modal-ease);
}

.gc-container #modal-overlay.is-open .gc-modal-stage {
  transform: scale(1);
  opacity: 1;
}

.gc-container #modal-overlay .gc-modal-image {
  display: block;
  width: auto;
  height: auto;
  max-width: min(92vw, 720px);
  max-height: min(88vh, 960px);
  object-fit: contain;
  object-position: center center;
  border: 1px solid var(--gc-border-subtle);
  border-radius: 2px;
  box-shadow: var(--gc-modal-shadow);
  user-select: none;
  -webkit-user-drag: none;
}

@media (prefers-reduced-motion: reduce) {
  .gc-container #modal-overlay.gc-modal-overlay,
  .gc-container #modal-overlay .gc-modal-stage {
    transition: none;
  }
}