/**
 * Media Viewer Component CSS
 * Lightbox viewer for images, videos, and media galleries
 * Extends media-base.css
 */
/* ===== Main Container ===== */
.media-viewer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.95);
  z-index: var(--z-index-modal);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--media-transition-speed) ease,
    visibility var(--media-transition-speed) ease;
  display: flex;
  flex-direction: column;
}
.media-viewer.visible {
  opacity: 1;
  visibility: visible;
}
/* ===== Header Controls ===== */
.media-viewer-header {
  position: absolute;
  top: 1rem;
  right: 1rem;
  display: flex;
  gap: 0.5rem;
  z-index: 10;
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity var(--media-transition-speed) ease 0.2s,
    transform var(--media-transition-speed) ease 0.2s;
}
.media-viewer.visible .media-viewer-header {
  opacity: 1;
  transform: translateY(0);
}
.media-viewer-controls {
  display: flex;
  gap: 0.25rem;
}
/* ===== Buttons ===== */
.media-viewer button {
  width: 2.5rem;
  height: 2.5rem;
  border: none;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  color: var(--color-white);
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  padding: 0;
}
.media-viewer button:hover {
  background-color: rgba(255, 255, 255, 0.25);
}
.media-viewer button:before {
  margin-right: 0;
}
.media-viewer .close-button:before {
  content: '';
  display: block;
  width: 24px;
  height: 24px;
  background-color: var(--color-white);
  mask: url("data:image/svg+xml;utf8,<svg viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'><path d='M6 6L18 18M6 18L18 6' stroke='black' stroke-width='2.5' stroke-linecap='round'/></svg>") center / contain no-repeat;
}
/* ===== Content Area ===== */
.media-viewer-content {
  flex: 1;
  height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
/* ===== Stage ===== */
.media-stage {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
/* ===== Loading (extends media-base) ===== */
.media-stage.loading::before,
.media-stage.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  border-radius: 50%;
  animation: media-spin 0.8s cubic-bezier(0.5, 0, 0.5, 1) infinite;
  z-index: 5;
}
.media-stage.loading::before {
  transform: translate(-50%, -50%);
  width: 50px;
  height: 50px;
  border: 3px solid rgba(255, 255, 255, 0.15);
  border-top-color: rgba(255, 255, 255, 0.9);
}
.media-stage.loading::after {
  transform: translate(-50%, -50%);
  width: 70px;
  height: 70px;
  border: 2px solid rgba(255, 255, 255, 0.05);
  border-top-color: rgba(255, 255, 255, 0.3);
  animation-duration: 1.2s;
  animation-direction: reverse;
  z-index: 4;
}
/* Navigation Buttons */
.media-viewer .nav-button {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 3.5rem !important;
  height: 3.5rem !important;
  font-size: 1.5rem;
  background-color: rgba(0, 0, 0, 0.4);
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease, background-color 0.2s ease;
}
.media-viewer.visible .nav-button {
  opacity: 1;
}
.nav-button.prev {
  left: 1rem;
}
.nav-button.next {
  right: 1rem;
}
.nav-button:hover {
  background-color: rgba(255, 255, 255, 0.2) !important;
}
/* Media Item */
.media-item {
  max-width: 90vw;
  max-height: calc(90vh - 120px);
  object-fit: contain;
  transform-origin: center;
  user-select: none;
  opacity: 0;
  transform: scale(0.95);
  transition:
    opacity 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94),
    transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  cursor: zoom-in;
}
.media-item.loaded {
  opacity: 1;
  transform: scale(1);
}
.media-item.iframe {
  width: 80vw;
  height: calc(80vw * 9/16);
  max-height: 70vh;
  border: none;
  opacity: 1;
  transform: scale(1);
  border-radius: var(--border-radius-sm);
}
/* Zoomed State */
.media-item[style*="scale"] {
  cursor: grab;
}
.media-item[style*="scale"]:active {
  cursor: grabbing;
}
/* Thumbnails */
.media-viewer-thumbnails {
  position: relative;
  height: 100px;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.4));
  padding: 1rem;
  overflow: hidden;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.3s ease 0.15s, transform 0.3s ease 0.15s;
}
.media-viewer.visible .media-viewer-thumbnails {
  opacity: 1;
  transform: translateY(0);
}
.thumbnail-track {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  align-items: center;
  height: 100%;
}
.media-viewer-thumbnails .thumbnail {
  flex: 0 0 auto;
  width: 70px;
  height: 70px;
  border: 2px solid transparent;
  border-radius: var(--border-radius-sm);
  overflow: hidden;
  cursor: pointer;
  opacity: 0.5;
  transition: all 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  background-color: rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  transform: scale(0.9);
}
.media-viewer-thumbnails .thumbnail:hover {
  opacity: 0.85;
  transform: scale(1);
  background-color: rgba(255, 255, 255, 0.1);
}
.media-viewer-thumbnails .thumbnail.active {
  border-color: var(--highlight-bg);
  opacity: 1;
  transform: scale(1.05);
  box-shadow: 0 0 20px rgba(var(--highlight-bg-rgb, 59, 130, 246), 0.5);
}
.media-viewer-thumbnails .thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.media-viewer-thumbnails .thumbnail:hover img {
  transform: scale(1.1);
}
.media-viewer-thumbnails .icon-youtube,
.media-viewer-thumbnails .icon-index {
  font-size: 2rem;
  color: var(--color-white);
}
/* Media Caption */
.media-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 1rem 2rem;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.9), transparent);
  color: white;
  text-align: center;
  font-size: 0.95rem;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: none;
}
.media-viewer.visible .media-caption {
  opacity: 1;
  transform: translateY(0);
}
/* Counter */
.media-counter {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: rgba(0, 0, 0, 0.5);
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  color: white;
  font-size: 0.875rem;
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity 0.3s ease 0.2s, transform 0.3s ease 0.2s;
}
.media-viewer.visible .media-counter {
  opacity: 1;
  transform: translateY(0);
}
/* Mobile Responsiveness */
@media (max-width: 768px) {
  .media-viewer-header {
    top: 0.5rem;
    right: 0.5rem;
  }
  .media-viewer button {
    width: 2.25rem;
    height: 2.25rem;
  }
  .nav-button {
    width: 2.75rem !important;
    height: 2.75rem !important;
    font-size: 1.2rem;
  }
  .media-viewer-thumbnails {
    height: 80px;
    padding: 0.5rem;
  }
  .thumbnail {
    width: 55px;
    height: 55px;
  }
  .media-item {
    max-height: calc(90vh - 100px);
  }
  .media-caption {
    font-size: 0.85rem;
    padding: 0.75rem 1rem;
  }
  .media-counter {
    font-size: 0.75rem;
    padding: 0.35rem 0.75rem;
  }
}
/* Touch device support */
@media (hover: none) {
  .thumbnail {
    opacity: 0.7;
    transform: scale(1);
  }
  .media-viewer .nav-button {
    opacity: 0.8;
  }
}
/* ===== Text/HTML Content ===== */
.media-text,
.media-html {
  max-width: 800px;
  max-height: calc(90vh - 120px);
  overflow-y: auto;
  padding: 2rem;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--border-radius-md, 8px);
  color: white;
  text-align: left;
  line-height: 1.6;
  opacity: 1;
  transform: scale(1);
}
.media-text-title {
  margin: 0 0 1rem;
  font-size: 1.5rem;
  font-weight: 600;
  color: white;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: 0.75rem;
}
.media-html a {
  color: var(--highlight-bg, #3b82f6);
  text-decoration: underline;
}
.media-html img {
  max-width: 100%;
  height: auto;
  border-radius: var(--border-radius-sm);
}
/* ===== Error State ===== */
.media-error {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  color: white;
  text-align: center;
  opacity: 1;
}
.media-error-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}
.media-error-message {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.8);
  max-width: 400px;
}
@media (max-width: 768px) {
  .media-text,
  .media-html {
    padding: 1.5rem;
    max-width: 100%;
  }
  .media-text-title {
    font-size: 1.25rem;
  }
}