/* ==============================================
   MGWPP Folder Reveal Gallery
   A compact folder card that unfolds into a
   cascading stack of blog post cards.
   ============================================== */

/* --- Wrapper --- */
.mgwpp-folder-reveal {
  --fr-primary: #07babe;
  --fr-primary-dim: rgba(7, 186, 190, 0.15);
  --fr-bg: #0f1419;
  --fr-card-bg: #1a1f26;
  --fr-card-border: rgba(255, 255, 255, 0.06);
  --fr-text: #e4e8ec;
  --fr-text-muted: #8b949e;
  --fr-radius: 16px;
  --fr-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --fr-transition: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);

  position: relative;
  max-width: 720px;
  margin: 2rem auto;
  perspective: 1200px;
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

/* --- Folder Cover (Closed State) --- */
.mgwpp-folder-cover {
  position: relative;
  background: var(--fr-card-bg);
  border: 1px solid var(--fr-card-border);
  border-radius: var(--fr-radius);
  padding: 24px;
  cursor: pointer;
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
  box-shadow: var(--fr-shadow);
  overflow: hidden;
  outline: none;
}

.mgwpp-folder-cover::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    var(--fr-primary-dim) 0%,
    transparent 60%
  );
  opacity: 0;
  transition: opacity 0.3s ease;
  border-radius: inherit;
  pointer-events: none;
}

.mgwpp-folder-cover:hover,
.mgwpp-folder-cover:focus-visible {
  transform: translateY(-4px);
  box-shadow:
    0 12px 48px rgba(0, 0, 0, 0.5),
    0 0 0 2px var(--fr-primary-dim);
}

.mgwpp-folder-cover:hover::before,
.mgwpp-folder-cover:focus-visible::before {
  opacity: 1;
}

/* Folder is open */
.mgwpp-folder-reveal.is-open .mgwpp-folder-cover {
  transform: translateY(-8px) scale(0.97);
  opacity: 0.7;
}

/* --- Folder Tab --- */
.mgwpp-folder-tab {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.mgwpp-folder-tab-icon {
  width: 24px;
  height: 24px;
  color: var(--fr-primary);
  flex-shrink: 0;
}

.mgwpp-folder-label {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--fr-text);
  letter-spacing: 0.02em;
}

.mgwpp-folder-count {
  font-size: 0.8rem;
  color: var(--fr-primary);
  background: var(--fr-primary-dim);
  padding: 2px 10px;
  border-radius: 99px;
  font-weight: 500;
  margin-left: auto;
}

/* --- Cover Card Stack (preview thumbnails) --- */
.mgwpp-folder-cover-stack {
  position: relative;
  height: 180px;
  margin: 8px 0 16px;
  z-index: 1;
}

.mgwpp-cover-card {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 12px;
  overflow: hidden;
  transition:
    transform var(--fr-transition),
    opacity 0.4s ease;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.mgwpp-cover-card:nth-child(1) {
  z-index: 3;
  transform: rotate(-1deg) scale(1);
}

.mgwpp-cover-card:nth-child(2) {
  z-index: 2;
  transform: rotate(1.5deg) translateY(6px) scale(0.97);
}

.mgwpp-cover-card:nth-child(3) {
  z-index: 1;
  transform: rotate(-2deg) translateY(12px) scale(0.94);
}

.mgwpp-cover-card img.mgwpp-cover-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Hover shuffle effect */
.mgwpp-folder-cover:hover .mgwpp-cover-card:nth-child(1) {
  transform: rotate(-2deg) translateX(-8px) scale(1);
}

.mgwpp-folder-cover:hover .mgwpp-cover-card:nth-child(2) {
  transform: rotate(2.5deg) translateY(4px) translateX(4px) scale(0.97);
}

.mgwpp-folder-cover:hover .mgwpp-cover-card:nth-child(3) {
  transform: rotate(-3deg) translateY(10px) translateX(-4px) scale(0.94);
}

/* --- Folder Hint --- */
.mgwpp-folder-hint {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  color: var(--fr-text-muted);
  font-size: 0.8rem;
  position: relative;
  z-index: 1;
}

.mgwpp-chevron-icon {
  width: 16px;
  height: 16px;
  transition: transform 0.3s ease;
}

.mgwpp-folder-reveal.is-open .mgwpp-chevron-icon {
  transform: rotate(180deg);
}

/* --- Blog Post Card Stack (Revealed) --- */
.mgwpp-folder-stack {
  display: grid;
  gap: 16px;
  margin-top: 0;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition:
    max-height 0.6s cubic-bezier(0.34, 1.56, 0.64, 1),
    opacity 0.4s ease,
    margin-top 0.4s ease;
}

.mgwpp-folder-reveal.is-open .mgwpp-folder-stack {
  max-height: 3000px;
  opacity: 1;
  margin-top: 20px;
  overflow: visible;
}

/* --- Individual Post Card --- */
.mgwpp-post-card {
  display: flex;
  background: var(--fr-card-bg);
  border: 1px solid var(--fr-card-border);
  border-radius: var(--fr-radius);
  overflow: hidden;
  box-shadow: var(--fr-shadow);
  transform: translateY(30px) rotateX(-5deg) scale(0.95);
  opacity: 0;
  transition:
    transform var(--fr-transition),
    opacity 0.4s ease;
  transition-delay: calc(var(--card-index) * 0.1s);
}

.mgwpp-folder-reveal.is-open .mgwpp-post-card {
  transform: translateY(0) rotateX(0deg) scale(1);
  opacity: 1;
}

.mgwpp-post-card:hover {
  transform: translateY(-4px) scale(1.01);
  box-shadow:
    0 12px 40px rgba(0, 0, 0, 0.5),
    0 0 0 1px var(--fr-primary-dim);
}

/* --- Post Card Image --- */
.mgwpp-post-card-image {
  flex-shrink: 0;
  width: 200px;
  position: relative;
  overflow: hidden;
}

.mgwpp-post-card-image img.mgwpp-post-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.mgwpp-post-card:hover .mgwpp-post-card-image img.mgwpp-post-thumb {
  transform: scale(1.05);
}

/* --- Post Card Content --- */
.mgwpp-post-card-content {
  flex: 1;
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

.mgwpp-post-date {
  font-size: 0.75rem;
  color: var(--fr-primary);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.mgwpp-post-title {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.3;
  margin: 0;
}

.mgwpp-post-title a {
  color: var(--fr-text);
  text-decoration: none;
  transition: color 0.2s ease;
}

.mgwpp-post-title a:hover {
  color: var(--fr-primary);
}

.mgwpp-post-excerpt {
  font-size: 0.9rem;
  color: var(--fr-text-muted);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin: 0;
}

/* --- Read More Link --- */
.mgwpp-read-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--fr-primary);
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  margin-top: auto;
  padding-top: 4px;
  transition: gap 0.3s ease;
}

.mgwpp-read-more:hover {
  gap: 10px;
}

.mgwpp-read-more svg {
  width: 16px;
  height: 16px;
  transition: transform 0.3s ease;
}

.mgwpp-read-more:hover svg {
  transform: translateX(4px);
}

/* --- Error State --- */
.mgwpp-folder-reveal .mgwpp-error {
  text-align: center;
  padding: 40px 20px;
  color: var(--fr-text-muted);
  font-size: 0.95rem;
}

/* ==============================================
   RESPONSIVE
   ============================================== */

@media (max-width: 768px) {
  .mgwpp-folder-reveal {
    margin: 1rem;
  }

  .mgwpp-post-card {
    flex-direction: column;
  }

  .mgwpp-post-card-image {
    width: 100%;
    height: 180px;
  }

  .mgwpp-post-card-content {
    padding: 16px;
  }

  .mgwpp-post-title {
    font-size: 1rem;
  }

  .mgwpp-folder-cover-stack {
    height: 140px;
  }
}

@media (max-width: 480px) {
  .mgwpp-folder-cover {
    padding: 16px;
  }

  .mgwpp-folder-cover-stack {
    height: 110px;
  }

  .mgwpp-post-card-image {
    height: 140px;
  }

  .mgwpp-post-card-content {
    padding: 12px;
    gap: 6px;
  }

  .mgwpp-post-title {
    font-size: 0.95rem;
  }

  .mgwpp-post-excerpt {
    -webkit-line-clamp: 1;
  }
}