/* ============================================================
   SPLAT OVERLAY — FLWLESS 2.0
   Full-screen takeover for gaussian splat viewer.
   iframe is injected on open and destroyed on close — GPU freed.
   ============================================================ */

/* ---- Trigger buttons ---- */
.splat-trigger {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
  color: inherit;
  font-family: inherit;
  text-align: left;
}

/* ---- Overlay shell ---- */
.splat-overlay {
  position: fixed;
  inset: 0;
  z-index: 98000;
  background: var(--c-bg);
  display: flex;
  flex-direction: column;

  /* Hidden state */
  opacity: 0;
  pointer-events: none;
  transition: opacity 380ms cubic-bezier(0.22, 1, 0.36, 1);
}

.splat-overlay.is-open {
  opacity: 1;
  pointer-events: auto;
}

/* ---- iframe container ---- */
.splat-overlay-frame {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.splat-overlay-frame iframe {
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}

/* ---- Loading state: shown before iframe fires load event ---- */
.splat-overlay-loading {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  pointer-events: none;
  transition: opacity 400ms ease;
}

.splat-overlay.is-loaded .splat-overlay-loading {
  opacity: 0;
}

.splat-overlay-spinner {
  width: 36px;
  height: 36px;
  border: 1px solid var(--c-line-2);
  border-top-color: var(--c-accent);
  border-radius: 50%;
  animation: splatSpin 900ms linear infinite;
}

@keyframes splatSpin {
  to { transform: rotate(360deg); }
}

/* ---- Top bar: label + close ---- */
.splat-overlay-bar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px var(--pad-x);
  background: linear-gradient(to bottom, rgba(14,13,12,0.72) 0%, transparent 100%);
  pointer-events: none;
}

.splat-overlay-bar > * {
  pointer-events: auto;
}

.splat-overlay-label {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--c-ink-2);
}

.splat-overlay-label-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-accent);
  animation: splatPulse 2.4s ease-in-out infinite;
}

@keyframes splatPulse {
  0%, 100% { opacity: 0.4; transform: scale(1);   }
  50%       { opacity: 1;   transform: scale(1.4); }
}

.splat-overlay-title {
  color: var(--c-ink);
}

/* ---- Close button ---- */
.splat-overlay-close {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(14,13,12,0.5);
  border: 1px solid var(--c-line-2);
  color: var(--c-ink);
  padding: 10px 18px;
  font-family: var(--font-head);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  cursor: pointer;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: background 200ms ease, border-color 200ms ease;
}

.splat-overlay-close:hover {
  background: rgba(14,13,12,0.8);
  border-color: var(--c-ink-2);
}

.splat-overlay-close svg {
  flex-shrink: 0;
}

/* ---- Hint bar at bottom ---- */
.splat-overlay-hint {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 3;
  padding: 16px var(--pad-x);
  background: linear-gradient(to top, rgba(14,13,12,0.6) 0%, transparent 100%);
  pointer-events: none;
}

/* ---- Poster (trigger surface on homepage / project page) ---- */
.splat-poster {
  position: absolute;
  inset: 0;
  cursor: pointer;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.splat-poster-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 800ms cubic-bezier(0.22, 1, 0.36, 1), filter 400ms ease;
  filter: brightness(0.68);
}

.splat-poster:hover .splat-poster-img {
  transform: scale(1.03);
  filter: brightness(0.5);
}

.splat-poster-cta {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  text-align: center;
  pointer-events: none;
  transition: transform 300ms cubic-bezier(0.22, 1, 0.36, 1);
}

.splat-poster:hover .splat-poster-cta {
  transform: scale(1.04);
}

.splat-poster-icon {
  width: 72px;
  height: 72px;
  border: 1px solid rgba(240,237,232,0.28);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-ink);
  background: rgba(14,13,12,0.28);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  transition: background 300ms ease, border-color 300ms ease;
}

.splat-poster:hover .splat-poster-icon {
  background: rgba(200,180,154,0.15);
  border-color: var(--c-accent);
}

.splat-poster-label {
  color: var(--c-ink);
  text-shadow: 0 2px 12px rgba(0,0,0,0.6);
}

.splat-poster-sub {
  font-family: var(--font-head);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--c-ink-2);
  text-shadow: 0 1px 8px rgba(0,0,0,0.5);
}

/* ---- Project page variant (uses proj- prefix classes) ---- */
.proj-splat-poster {
  position: absolute;
  inset: 0;
  cursor: pointer;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.proj-splat-poster-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 800ms cubic-bezier(0.22, 1, 0.36, 1), filter 400ms ease;
  filter: brightness(0.68);
}

.proj-splat-poster:hover .proj-splat-poster-img {
  transform: scale(1.03);
  filter: brightness(0.5);
}

.proj-splat-poster-cta {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  text-align: center;
  pointer-events: none;
  transition: transform 300ms cubic-bezier(0.22, 1, 0.36, 1);
}

.proj-splat-poster:hover .proj-splat-poster-cta {
  transform: scale(1.04);
}

.proj-splat-poster-icon {
  width: 72px;
  height: 72px;
  border: 1px solid rgba(240,237,232,0.28);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-ink);
  background: rgba(14,13,12,0.28);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  transition: background 300ms ease, border-color 300ms ease;
}

.proj-splat-poster:hover .proj-splat-poster-icon {
  background: rgba(200,180,154,0.15);
  border-color: var(--c-accent);
}

.proj-splat-poster-label {
  color: var(--c-ink);
  text-shadow: 0 2px 12px rgba(0,0,0,0.6);
}

.proj-splat-poster-sub {
  font-family: var(--font-head);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--c-ink-2);
  text-shadow: 0 1px 8px rgba(0,0,0,0.5);
}

/* ---- Reduced motion ---- */
@media (prefers-reduced-motion: reduce) {
  .splat-overlay,
  .splat-poster-img,
  .splat-poster-cta,
  .proj-splat-poster-img,
  .proj-splat-poster-cta {
    transition: none !important;
    animation: none !important;
  }
}