/* =============================================================
   LAB PAGE
   ============================================================= */

.page-lab .footer { display: none; }

/* Hide footer in the incoming container during Barba transitions */
[data-barba="container"]:has([data-infinite-grid-init]) .footer { display: none; }

/* ── INFINITE DRAGGABLE GRID ── */
.infinite-grid {
  touch-action: none;
  width: 100%;
  height: 100svh;
  position: relative;
  overflow: clip;
  cursor: grab;
  background-color: var(--c-bg);
  /* Circled dotted background: vignette layer on top fades dots toward edges */
  background-image:
    radial-gradient(ellipse 65% 65% at 50% 50%, transparent 28%, var(--c-bg) 100%),
    radial-gradient(circle at center, rgba(249, 249, 249, 0.2) 1px, transparent 1px);
  background-size: 100% 100%, 28px 28px;
}

.infinite-grid[data-infinite-grid-status="dragging"] {
  cursor: grabbing;
}

.infinite-grid__collection {
  will-change: transform;
  width: 100%;
  height: 100%;
  position: absolute;
  transition: opacity 0.6s ease;
}

/* Collection hidden while loader shows; fades in when grid is ready */
.infinite-grid[data-infinite-grid-status="loading"] .infinite-grid__collection {
  opacity: 0;
}

.infinite-grid__list {
  grid-template-columns: repeat(var(--grid-columns), auto);
  display: grid;
  position: absolute;
  top: 0;
  left: 0;
}

/* Always 3 visible columns regardless of viewport.
   width  = 100vw / 3
   padding scales from 10px (mobile) → 40px (desktop) via clamp
   height is derived so the card content always holds 4:3:
     card_w = width - 2p,  card_h = card_w × 3/4
     item_h = card_h + 2p = (width - 2p) × 3/4 + 2p = width×3/4 + p/2
            = 100vw/4 + clamp(5px, 100vw/72, 20px)           */
.infinite-grid__item {
  display: flex;
  align-items: stretch;
  justify-content: center;
  width: calc(100vw / 3);
  height: calc(100vw / 4 + clamp(5px, calc(100vw / 72), 20px));
  padding: clamp(10px, calc(100vw / 36), 40px);
}

.infinite-grid__card {
  -webkit-user-select: none;
  user-select: none;
  border-radius: .25em;
  flex: 1;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  background: transparent;
}

.infinite-grid__card-img {
  pointer-events: none;
  object-fit: contain;
  border-radius: inherit;
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

/* ── PLAYGROUND LOADER ── */
.lab-loader {
  position: absolute;
  inset: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  transition: opacity 0.9s var(--ease-out);
}

.infinite-grid:not([data-infinite-grid-status="loading"]) .lab-loader {
  opacity: 0;
}

.lab-loader__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.lab-loader__label {
  position: relative;
  z-index: 1;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.55em;
  text-transform: lowercase;
  color: var(--c-f9f9f9);
  animation: lab-label-pulse 2s ease-in-out 0.2s infinite;
}

@keyframes lab-label-pulse {
  0%, 100% { opacity: 0.18; }
  50%      { opacity: 0.48; }
}

/* ── TOP + BOTTOM GRADIENT BLUR OVERLAYS ── */
.infinite-grid::before,
.infinite-grid::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  z-index: 10;
  pointer-events: none;
}

.infinite-grid::before {
  top: 0;
  height: 160px;
  background: linear-gradient(to bottom, rgba(9,9,9,0.9) 0%, rgba(9,9,9,0) 100%);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  -webkit-mask-image: linear-gradient(to bottom, black 25%, transparent 100%);
  mask-image: linear-gradient(to bottom, black 25%, transparent 100%);
}

.infinite-grid::after {
  bottom: 0;
  height: 120px;
  background: linear-gradient(to top, rgba(9,9,9,0.8) 0%, rgba(9,9,9,0) 100%);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  -webkit-mask-image: linear-gradient(to top, black 25%, transparent 100%);
  mask-image: linear-gradient(to top, black 25%, transparent 100%);
}

/* ── NAV BUTTON — frosted glass on lab page ── */
.page-lab .btn-nav {
  background: rgba(249, 249, 249, 0.08);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(249, 249, 249, 0.14);
}

/* ── LIGHTBOX ─────────────────────────────────────────────────── */
.lab-lb {
  position: fixed;
  inset: 0;
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.lab-lb.is-open {
  opacity: 1;
  pointer-events: auto;
}

.lab-lb__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
}

.lab-lb__inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.75rem;
}

.lab-lb__close {
  background: none;
  border: none;
  color: #fff;
  font-family: inherit;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  padding: 0.25rem 0;
  opacity: 0.6;
  transition: opacity 0.15s ease;
}

.lab-lb__close:hover {
  opacity: 1;
}

.lab-lb__media {
  display: block;
  max-width: 90vw;
  max-height: 85vh;
  width: auto;
  height: auto;
  border-radius: 0.25rem;
}