/*
 * Kwalee BI — Page Transition Overlay
 *
 * Full-viewport overlay shown while the routing callback fires between
 * page navigations.  Activated clientside (instant) on pathname change,
 * dismissed once _pages_content.children arrives from the server.
 *
 * Debug mode: add ?_loading to any URL to freeze the overlay open so you
 * can inspect and iterate on its styles without needing to click fast.
 */

/* ═══════════════════════════════════════════════════════════════════════
   OVERLAY CONTAINER
   ═══════════════════════════════════════════════════════════════════════ */

.page-transition-overlay {
  position: fixed;
  inset: 0;
  z-index: 900; /* below modals (1000+) but above all page content */
  display: flex;
  align-items: center;
  justify-content: center;

  /* Hidden by default */
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease;
}

[data-theme="dark"] .page-transition-overlay {
  background: rgba(10, 10, 10, 0.6);
}

[data-theme="light"] .page-transition-overlay {
  background: rgba(255, 255, 255, 0.6);
}

/* Visible state — added clientside on navigate */
.page-transition-overlay--active,
.page-transition-overlay--debug {
  opacity: 1;
  pointer-events: all;
}

/* ═══════════════════════════════════════════════════════════════════════
   SPINNER
   ═══════════════════════════════════════════════════════════════════════ */

.page-transition-spinner {
  position: relative;
  width: 48px;
  height: 48px;
}

.page-transition-spinner__ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 3px solid transparent;
  animation: page-transition-spin 1.1s cubic-bezier(0.5, 0, 0.5, 1) infinite;
}

/* Three rings offset in time and color for a layered effect */
.page-transition-spinner__ring:nth-child(1) {
  animation-delay: -0.45s;
}
.page-transition-spinner__ring:nth-child(2) {
  animation-delay: -0.3s;
}
.page-transition-spinner__ring:nth-child(3) {
  animation-delay: -0.15s;
}

[data-theme="dark"] .page-transition-spinner__ring {
  border-top-color: var(--color-brand, #f5c518);
}

[data-theme="light"] .page-transition-spinner__ring {
  border-top-color: var(--color-brand, #f5c518);
}

@keyframes page-transition-spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* ═══════════════════════════════════════════════════════════════════════
   DEBUG BADGE
   Visible only with ?_loading — reminds you this is a debug view.
   ═══════════════════════════════════════════════════════════════════════ */

.page-transition-overlay--debug::after {
  content: "debug: ?_loading";
  position: fixed;
  bottom: 16px;
  right: 16px;
  padding: 4px 10px;
  border-radius: 4px;
  font-family: var(--font-mono, monospace);
  font-size: 0.6875rem;
  letter-spacing: 0.03em;
  pointer-events: none;
}

[data-theme="dark"] .page-transition-overlay--debug::after {
  background: var(--color-neutral-800, #262626);
  color: var(--color-neutral-400, #a3a3a3);
  border: 1px solid var(--color-neutral-700, #404040);
}

[data-theme="light"] .page-transition-overlay--debug::after {
  background: var(--color-neutral-100, #f5f5f5);
  color: var(--color-neutral-500, #737373);
  border: 1px solid var(--color-neutral-300, #d4d4d4);
}

/* ═══════════════════════════════════════════════════════════════════════
   RESPECT REDUCED MOTION
   ═══════════════════════════════════════════════════════════════════════ */

@media (prefers-reduced-motion: reduce) {
  .page-transition-overlay {
    transition: none;
  }
  .page-transition-spinner__ring {
    animation: none;
    border-top-color: transparent;
    border-right-color: var(--color-brand, #f5c518);
  }
}