/* ==========================================================================
   كتالوج المشاريع والكتب والبرامج والمرجعيات المصرية
   مستخرج من directory.css القديم ضمن إعادة تنظيم نظام التصميم
   ========================================================================== */

/* شريط تبويبات ومساحات المكتبة المستقلة */
.library-subtabs-nav {
  margin-bottom: var(--space-6);
  position: sticky;
  top: 70px;
  z-index: 15;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 6px;
  box-shadow: var(--elev-1), var(--edge-light);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.library-subtabs-scroll {
  display: flex;
  align-items: center;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.library-subtabs-scroll::-webkit-scrollbar {
  display: none;
}

.lib-subtab-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  color: var(--text-secondary);
  background: transparent;
  border: 0;
  cursor: pointer;
  white-space: nowrap;
  transition: var(--t-interactive);
  flex-shrink: 0;
}

.lib-subtab-btn:hover {
  color: var(--text-primary);
  background: var(--overlay-1);
}

.lib-subtab-btn.active {
  color: #ffffff;
  background: var(--color-primary);
  box-shadow: 0 2px 10px rgba(15, 118, 110, 0.35);
}

.lib-subtab-btn i,
.lib-subtab-btn svg {
  width: 17px;
  height: 17px;
}

/* لوحات ومساحات المكتبة المستقلة */
.lib-panel {
  display: none;
  animation: fadeInLibPanel 0.22s ease-out;
}

.lib-panel.active-panel {
  display: block;
}

@keyframes fadeInLibPanel {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Projects Showcase Cards */
.projects-grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(380px, 100%), 1fr));
  gap: 26px;
}

.project-showcase-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.project-showcase-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.project-thumb-box {
  position: relative;
  height: 220px;
  overflow: hidden;
  background: #000000;
  cursor: pointer;
}

.project-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.project-thumb-box:hover .project-img {
  transform: scale(1.05);
}

.project-overlay {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background: rgba(7, 12, 24, 0.6);
  opacity: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.project-thumb-box:hover .project-overlay {
  opacity: 1;
}

.btn-overlay {
  background: rgba(8, 12, 20, 0.72);
  color: #ffffff;
  backdrop-filter: blur(6px);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.project-year-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(4, 7, 16, 0.85);
  color: #ffffff;
  font-family: var(--font-latin);
  font-weight: 700;
  font-size: 0.75rem;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  backdrop-filter: blur(4px);
}

.project-grade-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--fill-success);
  color: #ffffff;
  font-size: 0.72rem;
  font-weight: 800;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
}

.project-card-info {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.project-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.proj-cat {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--on-surface-primary);
}

.proj-level {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.project-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.35;
  margin-bottom: 4px;
  cursor: pointer;
}

.project-title-en {
  font-family: var(--font-latin);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.project-abstract {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 14px;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}

.proj-tag {
  font-size: 0.72rem;
  background: var(--overlay-1);
  color: var(--text-muted);
  padding: 2px 7px;
  border-radius: 4px;
}

.project-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 12px;
  border-top: 1px solid var(--border-subtle);
  margin-top: auto;
}

.students-summary {
  font-size: 0.78rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Digital Books Grid */
.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(320px, 100%), 1fr));
  gap: 20px;
}

.book-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 18px;
  display: flex;
  flex-direction: column;
}

.book-card-top {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
}

.book-badge {
  font-size: 0.7rem;
  font-weight: 800;
  color: var(--on-surface-accent);
  background: rgba(245, 158, 11, 0.15);
  padding: 2px 6px;
  border-radius: 4px;
}

.book-format {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.book-title {
  font-size: 1rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.book-author {
  font-size: 0.8rem;
  color: var(--on-surface-primary);
  margin-bottom: 8px;
}

.book-desc {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 14px;
}

.book-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid var(--border-subtle);
}

.book-cat {
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* Software Grid */
.software-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(300px, 100%), 1fr));
  gap: 20px;
}

.software-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 18px;
  display: flex;
  flex-direction: column;
}

.software-top {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
}

.software-badge {
  font-size: 0.7rem;
  font-weight: 800;
  color: var(--on-surface-primary);
  background: var(--color-primary-glow);
  padding: 2px 6px;
  border-radius: 4px;
}

.software-cat {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.software-name {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.software-desc {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 14px;
}

.software-actions {
  display: flex;
  gap: 8px;
  margin-top: auto;
}

/* =========================================================================
   مشاريع مصر المرجعية (Egyptian Landmarks Benchmarks)
   ========================================================================= */
.benchmarks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(360px, 100%), 1fr));
  gap: 24px;
}

.benchmark-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 22px;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  position: relative;
}

.benchmark-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.benchmark-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.benchmark-badge {
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--on-surface-accent);
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.3);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
}

.benchmark-code {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--on-surface-primary);
  display: flex;
  align-items: center;
  gap: 4px;
}

.benchmark-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 6px;
  line-height: 1.4;
}

.benchmark-location {
  font-size: 0.8rem;
  color: var(--on-surface-primary);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 5px;
}

.benchmark-desc {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 14px;
}

.benchmark-features-box {
  background: var(--bg-subtle);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  margin-bottom: 16px;
}

.benchmark-features-box label {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.benchmark-tags-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.benchmark-feat-tag {
  background: var(--overlay-2);
  font-size: 0.72rem;
  color: var(--text-primary);
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid var(--border-subtle);
}

[data-theme="light"] .benchmark-feat-tag {
  background: #FFFFFF;
}

.benchmark-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--border-subtle);
}

.benchmark-cat-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
}

/* ==========================================================================
   أشرطة الفلاتر وأزرار التصفية الموحدة (Catalog Filter Pills)
   ========================================================================== */
.curriculum-controls-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4, 16px);
  background: var(--bg-surface, #0e1629);
  border: 1px solid var(--border-subtle, rgba(255, 255, 255, 0.08));
  border-radius: var(--radius-lg, 12px);
  padding: 12px 18px;
  margin-bottom: 24px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.filter-pill-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 38px;
  padding: 6px 16px;
  background: var(--bg-card, #131e36);
  border: 1px solid var(--border-subtle, rgba(255, 255, 255, 0.12));
  color: var(--text-secondary, #cbd5e1);
  font-family: var(--font-arabic, 'Cairo', sans-serif);
  font-size: 0.8125rem;
  font-weight: 600;
  line-height: 1.3;
  border-radius: 9999px;
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
  text-decoration: none;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
  outline: none;
}

.filter-pill-btn:hover {
  background: var(--bg-hover, #22345e);
  color: var(--text-primary, #ffffff);
  border-color: var(--color-primary, #0284c7);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.2);
}

.filter-pill-btn.active {
  background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%) !important;
  color: #ffffff !important;
  border-color: #38bdf8 !important;
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.2) !important;
  font-weight: 700;
}

/* =========================================================================
   شبكة بطاقات التغذية البصرية (Inspiration Grid)
   ========================================================================= */
.inspiration-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(340px, 100%), 1fr));
  gap: 22px;
}

.inspiration-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  position: relative;
}

.inspiration-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.inspiration-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.inspiration-icon-box {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: rgba(230, 0, 35, 0.12);
  color: #e60023;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.inspiration-tag-pill {
  font-size: 0.75rem;
  font-weight: 800;
  color: #e60023;
  background: rgba(230, 0, 35, 0.08);
  border: 1px solid rgba(230, 0, 35, 0.25);
  padding: 2px 10px;
  border-radius: var(--radius-full);
}

.inspiration-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.inspiration-title-en {
  font-family: var(--font-latin);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.inspiration-desc {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 12px;
}

.inspiration-tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}

.insp-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  background: var(--overlay-1);
  padding: 2px 8px;
  border-radius: 4px;
}

.inspiration-footer {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--border-subtle);
}

.btn-pinterest {
  background: #e60023;
  color: #ffffff !important;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  border-radius: var(--radius-md);
}

.btn-pinterest:hover {
  background: #bd081c;
}

/* ==========================================================================
   نظام التمرير الأفقي المحمول لمعرض المشاريع والمكتبة (Mobile Sliders)
   ========================================================================== */
@media (max-width: 768px) {
  .projects-grid-container,
  .benchmarks-grid,
  .inspiration-grid,
  .books-grid,
  .software-grid {
    display: flex !important;
    overflow-x: auto !important;
    overflow-y: hidden !important;
    scroll-snap-type: x mandatory !important;
    -webkit-overflow-scrolling: touch !important;
    scroll-behavior: smooth;
    gap: var(--space-4) !important;
    padding: var(--space-2) 16px var(--space-4) 16px !important;
    margin-inline: -16px !important;
    scrollbar-width: thin;
  }

  .projects-grid-container::-webkit-scrollbar,
  .benchmarks-grid::-webkit-scrollbar,
  .inspiration-grid::-webkit-scrollbar,
  .books-grid::-webkit-scrollbar,
  .software-grid::-webkit-scrollbar {
    height: 4px;
  }

  .projects-grid-container::-webkit-scrollbar-thumb,
  .benchmarks-grid::-webkit-scrollbar-thumb,
  .inspiration-grid::-webkit-scrollbar-thumb,
  .books-grid::-webkit-scrollbar-thumb,
  .software-grid::-webkit-scrollbar-thumb {
    background: var(--border-subtle);
    border-radius: var(--radius-full);
  }

  .projects-grid-container > *,
  .benchmarks-grid > *,
  .inspiration-grid > *,
  .books-grid > *,
  .software-grid > * {
    flex: 0 0 84% !important;
    min-width: 270px !important;
    max-width: 330px !important;
    scroll-snap-align: start !important;
    scroll-snap-stop: normal !important;
  }

  .projects-grid-container > .empty-feed-card,
  .projects-grid-container > .empty-state {
    flex: 0 0 100% !important;
    width: 100% !important;
    max-width: 100% !important;
  }

  .curriculum-controls-bar {
    padding: 10px 12px;
    gap: 12px;
  }

  .curriculum-controls-bar .filter-group {
    flex-wrap: nowrap;
    overflow-x: auto;
    width: 100%;
    padding-bottom: 6px;
    scrollbar-width: thin;
    -webkit-overflow-scrolling: touch;
  }

  .curriculum-controls-bar .filter-group .filter-pill-btn {
    flex-shrink: 0;
  }
}