/**
 * Popout Frame Component
 *
 * Reusable modal/overlay system for embedding content in microsites.
 * Supports video (YouTube/Vimeo), PDF galleries, and Storyline modules.
 *
 * Usage:
 *   <link rel="stylesheet" href="/vendor/integralthemes/components/popout-frame.css">
 *
 * HTML pattern:
 *   <div id="my-modal" class="popout-frame [popout-video|popout-storyline]">
 *     <div class="popout-inner">
 *       <button class="popout-close" onclick="PopoutFrame.close('my-modal')">&#10005;</button>
 *       <!-- iframe or .pdf-viewer structure here -->
 *     </div>
 *   </div>
 *
 * JS API (requires popout-frame.js):
 *   PopoutFrame.open('my-modal')
 *   PopoutFrame.close('my-modal')
 *   openVideoModal('video-modal', 'https://www.youtube.com/embed/VIDEO_ID')
 *   toggleModalFullscreen('my-modal')
 *   PdfGallery.open('path/to/file.pdf')
 *   PdfGallery.next() / prev() / toggleZoom() / close()
 *
 * Action bar pattern (close + fullscreen buttons grouped inside .popout-inner):
 *   <div class="popout-actions">
 *     <button class="popout-fullscreen" onclick="toggleModalFullscreen('my-modal')" aria-label="Toggle fullscreen">
 *       <svg class="icon-expand" ...>...</svg>
 *       <svg class="icon-compress" ...>...</svg>
 *     </button>
 *     <button class="popout-close" onclick="PopoutFrame.close('my-modal')" aria-label="Close">&#10005;</button>
 *   </div>
 */

/* ── Backdrop ──────────────────────────────────────────────────────────────── */
.popout-frame {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.78);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}
.popout-frame.active {
  display: flex;
}

/* ── Inner box ─────────────────────────────────────────────────────────────── */
.popout-inner {
  position: relative;
  width: 100%;
  max-width: 960px;
  height: 88vh;
  background: #252535;
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* ── Close button ──────────────────────────────────────────────────────────── */
.popout-close {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  z-index: 10;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  border: none;
  border-radius: 50%;
  width: 2rem;
  height: 2rem;
  cursor: pointer;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  transition: background var(--transition-fast, 150ms ease);
}
.popout-close:hover {
  background: rgba(0, 0, 0, 0.88);
}

/* ── Action bar — groups close + fullscreen buttons ───────────────────────── */
/* Place .popout-actions inside .popout-inner so it survives requestFullscreen() */
.popout-actions {
  position: absolute;
  top: 1rem;
  right: 1rem;
  z-index: 9999;
  display: flex;
  flex-direction: row;
  gap: 0.5rem;
  align-items: center;
  pointer-events: all;
}

/* Vendor sets .popout-close { position: absolute } globally — cancel it
   so the button sits in the flex row as a normal flex child */
.popout-actions .popout-close {
  position: relative;
  top: auto;
  right: auto;
}

/* Both buttons share the same circular style */
.popout-actions button {
  background: rgba(0, 0, 0, 0.55);
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.55);
  border-radius: 50%;
  width: 2.5rem;
  height: 2.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1rem;
  line-height: 1;
  transition: background 150ms ease, border-color 150ms ease, transform 150ms ease;
}
.popout-actions button:hover {
  background: rgba(0, 0, 0, 0.82);
  border-color: #fff;
  transform: scale(1.08);
}

/* Entrance pulse — fires each time modal opens (.active toggled on) */
.popout-frame.active .popout-actions .popout-fullscreen {
  animation: popout-btn-entrance 0.8s cubic-bezier(0.34, 1.56, 0.64, 1) 0.05s both;
}
.popout-frame.active .popout-actions .popout-close {
  animation: popout-btn-entrance 0.8s cubic-bezier(0.34, 1.56, 0.64, 1) 0.18s both;
}

@keyframes popout-btn-entrance {
  0%   { opacity: 0; transform: scale(0.4);
         box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.6); }
  55%  { opacity: 1; transform: scale(1.12); }
  75%  { transform: scale(0.96);
         box-shadow: 0 0 0 10px rgba(255, 255, 255, 0); }
  100% { transform: scale(1);
         box-shadow: 0 0 0 0 rgba(255, 255, 255, 0); }
}

/* Fullscreen icon swap: expand shown by default, compress shown when active */
.popout-fullscreen .icon-expand   { display: flex; }
.popout-fullscreen .icon-compress { display: none; }
.popout-fullscreen.is-fullscreen .icon-expand   { display: none; }
.popout-fullscreen.is-fullscreen .icon-compress { display: flex; }

/* ── Video variant — 16:9, wider ───────────────────────────────────────────── */
.popout-video .popout-inner {
  max-width: 1100px;
  height: auto;
  aspect-ratio: 16 / 9;
  background: #000;
}
.popout-video .popout-inner iframe {
  flex: 1;
  width: 100%;
  border: none;
  min-height: 0;
  display: block;
}

/* ── Storyline variant — 4:3 default, override per-site as needed ──────────── */
.popout-storyline .popout-inner {
  max-width: 1060px;
  height: auto;
  aspect-ratio: 4 / 3;
  background: #fff;
}
.popout-storyline .popout-inner iframe {
  flex: 1;
  width: 100%;
  border: none;
  min-height: 0;
  display: block;
}

/* ── PDF Gallery variant ───────────────────────────────────────────────────── */
.pdf-viewer {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100%;
}

.pdf-stage {
  flex: 1;
  position: relative;
  overflow: hidden;
  background: #252535;
}

.pdf-canvas-wrap {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.pdf-canvas-wrap canvas {
  display: block;
  max-width: 100%;
  max-height: 100%;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.55);
  border-radius: 2px;
}

/* Controls bar */
.pdf-controls {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  padding: 0.75rem 1rem;
  background: #fff;
  border-radius: 0 0 8px 8px;
}
.pdf-controls-spacer,
.pdf-controls-actions {
  flex: 1;
}
.pdf-controls-nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}
.pdf-controls-actions {
  display: flex;
  justify-content: flex-end;
  align-items: center;
}

/* Prev / Next buttons */
.pdf-nav-btn {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  border: 2px solid var(--primary, #600b68);
  background: transparent;
  color: var(--primary, #600b68);
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  transition: background var(--transition-fast, 150ms ease),
              color var(--transition-fast, 150ms ease),
              transform 0.1s ease;
}
.pdf-nav-btn:hover:not(:disabled) {
  background: var(--primary, #600b68);
  color: #fff;
  transform: scale(1.08);
}
.pdf-nav-btn:active:not(:disabled) {
  transform: scale(0.95);
}
.pdf-nav-btn:disabled {
  opacity: 0.25;
  cursor: default;
}

/* Page counter */
.pdf-page-info {
  font-size: 0.9rem;
  font-weight: 600;
  color: #555;
  min-width: 64px;
  text-align: center;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

/* Expand / Fit zoom toggle */
.pdf-zoom-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.85rem;
  border-radius: 20px;
  border: 2px solid var(--primary, #600b68);
  background: transparent;
  color: var(--primary, #600b68);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  line-height: 1;
  transition: background var(--transition-fast, 150ms ease),
              color var(--transition-fast, 150ms ease),
              transform 0.1s ease;
}
.pdf-zoom-btn:hover {
  background: var(--primary, #600b68);
  color: #fff;
}
.pdf-zoom-btn:active {
  transform: scale(0.94);
}
.pdf-zoom-btn svg {
  flex-shrink: 0;
}

/* Zoom mode — stage scrollable, active wrap flows with content */
.pdf-stage.pdf-zoomed {
  overflow-y: auto;
  overflow-x: hidden;
}
.pdf-stage.pdf-zoomed .pdf-canvas-wrap {
  position: relative;
  inset: auto;
  width: 100%;
  padding: 24px;
  justify-content: flex-start;
}