/**
 * EduResource ZA — StuDocu-Style Carousels & Document Previews
 * Red Brand Theme matching live site (newfiles.html / General Resources)
 * Version: 20261025-v5
 */

/* Section Layout */
.home-pickup-section {
  margin: 32px 0 24px;
  position: relative;
  min-height: 400px;
  contain-intrinsic-size: 1000px 400px;
}

.home-pickup-carousel {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  min-height: 330px;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
}

.home-pickup-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  flex-wrap: wrap;
  gap: 12px;
}

.home-pickup-title-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.home-pickup-title {
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--edu-text, #0f172a);
  margin: 0;
}

.dark .home-pickup-title {
  color: #ffffff;
}

.home-pickup-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.home-pickup-nav-btn {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid var(--edu-line, #e2e8f0);
  background: var(--edu-card, #ffffff);
  color: var(--edu-text, #0f172a);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
  padding: 0;
}

.dark .home-pickup-nav-btn {
  background: #1e293b;
  border-color: #334155;
  color: #ffffff;
}

.home-pickup-nav-btn:hover {
  background: #e11d48;
  border-color: #e11d48;
  color: #ffffff;
  transform: scale(1.05);
}

/* Filter Pills (Red Brand Theme - No Blue!) */
.home-pickup-filters {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  overflow-x: auto;
  padding-bottom: 4px;
  -webkit-overflow-scrolling: touch;
}

.pickup-filter,
.top-docs-filter {
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 999px;
  border: 1px solid var(--edu-line, #e2e8f0);
  background: var(--edu-card, #ffffff);
  color: var(--edu-muted, #64748b);
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.dark .pickup-filter,
.dark .top-docs-filter {
  background: #1e293b;
  border-color: #334155;
  color: #94a3b8;
}

.pickup-filter:hover,
.top-docs-filter:hover {
  color: #ffffff;
  border-color: #e11d48;
}

/* ACTIVE FILTER: PURE BRAND RED (Matches live site!) */
.pickup-filter.is-active,
.top-docs-filter.is-active {
  background: #e11d48 !important;
  border-color: #e11d48 !important;
  color: #ffffff !important;
  box-shadow: 0 4px 14px rgba(225, 29, 72, 0.4) !important;
}

/* Carousel Container */
.home-pickup-carousel {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  padding: 4px 4px 18px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.home-pickup-carousel::-webkit-scrollbar {
  height: 6px;
}

.home-pickup-carousel::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.05);
  border-radius: 999px;
}

.dark .home-pickup-carousel::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
}

.home-pickup-carousel::-webkit-scrollbar-thumb {
  background: rgba(225, 29, 72, 0.4);
  border-radius: 999px;
}

/* Document Card (Matches newfiles.html / General Resources - Clean Shell in Light, Sleek in Dark) */
.pickup-card {
  flex: 0 0 240px;
  width: 240px;
  scroll-snap-align: start;
  text-decoration: none;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  cursor: pointer;
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.2s ease, box-shadow 0.2s ease;
  user-select: none;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.pickup-card:hover {
  transform: translateY(-4px);
  border-color: rgba(225, 29, 72, 0.45);
  box-shadow: 0 10px 24px -4px rgba(0, 0, 0, 0.12), 0 0 0 1px rgba(225, 29, 72, 0.25);
}

/* Dark Mode Card Shell */
.dark .pickup-card,
html.dark .pickup-card,
body.dark .pickup-card,
[data-theme="dark"] .pickup-card {
  background: #111827;
  border-color: rgba(255, 255, 255, 0.09);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
}

.dark .pickup-card:hover,
html.dark .pickup-card:hover,
body.dark .pickup-card:hover,
[data-theme="dark"] .pickup-card:hover {
  border-color: rgba(225, 29, 72, 0.45);
  box-shadow: 0 12px 28px -6px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(225, 29, 72, 0.3);
}

/* White A4 Paper Sheet Preview */
.pickup-sheet {
  position: relative;
  width: 100%;
  height: 208px;
  background: #f8fafc;
  color: #0f172a;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  overflow: hidden;
  padding: 0;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.03);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
  transition: all 0.2s ease;
  text-decoration: none;
}

.dark .pickup-sheet,
html.dark .pickup-sheet,
body.dark .pickup-sheet,
[data-theme="dark"] .pickup-sheet {
  background: #1e293b;
  color: #ffffff;
  border-color: #334155;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.2);
}

.pickup-sheet canvas {
  max-height: 196px;
  max-width: 92%;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.12);
  background: #ffffff;
  display: block;
  border-radius: 3px;
}

.dark .pickup-sheet canvas,
html.dark .pickup-sheet canvas,
body.dark .pickup-sheet canvas,
[data-theme="dark"] .pickup-sheet canvas {
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.4);
}

.pickup-sheet .preview-placeholder {
  color: #64748b;
  font-size: 11px;
  font-weight: 600;
  text-align: center;
  padding: 18px;
}

.dark .pickup-sheet .preview-placeholder,
html.dark .pickup-sheet .preview-placeholder,
body.dark .pickup-sheet .preview-placeholder,
[data-theme="dark"] .pickup-sheet .preview-placeholder {
  color: #94a3b8;
}

/* PDF Preview Pill (Exact pill from user's live site!) */
.pickup-pdf-preview-pill {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(15, 23, 42, 0.92);
  color: #ffffff;
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
  font-size: 10px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
  letter-spacing: 0.02em;
  pointer-events: none;
  z-index: 5;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

/* NEW Sticker (Top Left) */
.pickup-new-sticker {
  position: absolute;
  top: 8px;
  left: 8px;
  background: #e11d48;
  color: #ffffff;
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
  font-size: 9.5px;
  font-weight: 800;
  letter-spacing: 0.05em;
  padding: 3px 8px;
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  z-index: 5;
  box-shadow: 0 2px 8px rgba(225, 29, 72, 0.45);
}

/* Document Sheet Content Styling */
.pickup-preview-body {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 6px;
  position: relative;
  background: #ffffff;
  color: #0f172a;
}

.pickup-exam-masthead {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: 'Plus Jakarta Sans', Georgia, serif;
  font-size: 7.5px;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: #0f172a;
  border-bottom: 1.5px solid #0f172a;
  padding-bottom: 4px;
  text-transform: uppercase;
}

.pickup-exam-subhead {
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
  font-size: 8.5px;
  font-weight: 800;
  letter-spacing: 0.03em;
  color: #1e293b;
  text-transform: uppercase;
  margin-top: 2px;
}

.pickup-exam-diagram {
  width: 100%;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 4px;
  padding: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 2px 0;
}

.pickup-exam-text-snippet {
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 8.5px;
  line-height: 1.35;
  color: #334155;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

.pickup-exam-table {
  width: 100%;
  border: 1px solid #cbd5e1;
  border-radius: 3px;
  font-size: 7.5px;
  font-family: 'Plus Jakarta Sans', monospace;
  margin: 3px 0;
}

.pickup-table-row {
  display: flex;
  justify-content: space-between;
  padding: 2px 4px;
  border-bottom: 1px solid #f1f5f9;
}

.pickup-table-row.header {
  background: #f1f5f9;
  font-weight: 800;
  border-bottom: 1px solid #cbd5e1;
}

.pickup-table-row.total {
  font-weight: 800;
  border-top: 1px solid #0f172a;
  border-bottom: 2px double #0f172a;
}

.pickup-exam-formula-box {
  background: #f8fafc;
  border: 1px solid #cbd5e1;
  border-radius: 3px;
  padding: 4px 6px;
  font-family: monospace;
  font-size: 8px;
  color: #0f172a;
  margin: 3px 0;
}

.pickup-exam-instructions-box {
  background: #f8fafc;
  border-left: 2px solid #e11d48;
  padding: 4px 6px;
  font-size: 7.5px;
  color: #334155;
  margin: 3px 0;
}

.pickup-exam-instructions-box ol {
  margin: 2px 0 0 12px;
  padding: 0;
}

/* Card Details (Under the preview) */
.pickup-card-details {
  display: flex;
  flex-direction: column;
  flex: 1;
}

.pickup-card-board {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 12px;
  font-weight: 800;
  color: #64748b;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.dark .pickup-card-board,
html.dark .pickup-card-board,
body.dark .pickup-card-board,
[data-theme="dark"] .pickup-card-board {
  color: #94a3b8;
}

.pickup-card-title {
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  font-size: 13.5px;
  font-weight: 700;
  line-height: 1.35;
  color: #0f172a;
  margin: 0 0 6px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  height: 36px;
  transition: color 0.15s ease;
}

.pickup-card:hover .pickup-card-title {
  color: #e11d48;
}

.dark .pickup-card-title,
html.dark .pickup-card-title,
body.dark .pickup-card-title,
[data-theme="dark"] .pickup-card-title {
  color: #ffffff;
}

.dark .pickup-card:hover .pickup-card-title,
html.dark .pickup-card:hover .pickup-card-title,
body.dark .pickup-card:hover .pickup-card-title,
[data-theme="dark"] .pickup-card:hover .pickup-card-title {
  color: #fb7185;
}

.pickup-card-subject {
  font-size: 12.5px;
  font-weight: 500;
  color: #64748b;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 12px;
}

.dark .pickup-card-subject,
html.dark .pickup-card-subject,
body.dark .pickup-card-subject,
[data-theme="dark"] .pickup-card-subject {
  color: #94a3b8;
}

.pickup-badge-timetable {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 10.5px;
  font-weight: 700;
  color: #d97706;
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.35);
  border-radius: 4px;
  padding: 3px 7px;
  margin-bottom: 12px;
  width: fit-content;
}

.dark .pickup-badge-timetable,
html.dark .pickup-badge-timetable,
body.dark .pickup-badge-timetable,
[data-theme="dark"] .pickup-badge-timetable {
  color: #fbbf24;
  background: rgba(245, 158, 11, 0.14);
}

/* Action Buttons (Read document + Save) */
.pickup-card-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: auto;
}

.pickup-btn-read {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #e11d48;
  color: #ffffff;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 12px;
  font-weight: 700;
  padding: 7px 12px;
  border-radius: 6px;
  text-decoration: none;
  transition: all 0.15s ease;
  box-shadow: 0 2px 8px rgba(225, 29, 72, 0.35);
  white-space: nowrap;
}

.pickup-btn-read:hover {
  background: #be123c;
  color: #ffffff;
  transform: translateY(-1px);
}

.pickup-btn-save {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #f8fafc;
  color: #0f172a;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 12px;
  font-weight: 600;
  padding: 7px 14px;
  border-radius: 6px;
  border: 1px solid #cbd5e1;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.pickup-btn-save:hover {
  background: #e2e8f0;
  border-color: #94a3b8;
}

.dark .pickup-btn-save,
html.dark .pickup-btn-save,
body.dark .pickup-btn-save,
[data-theme="dark"] .pickup-btn-save {
  background: #1e293b;
  color: #ffffff;
  border: 1px solid #334155;
}

.dark .pickup-btn-save:hover,
html.dark .pickup-btn-save:hover,
body.dark .pickup-btn-save:hover,
[data-theme="dark"] .pickup-btn-save:hover {
  background: #334155;
  border-color: #475569;
}

.pickup-btn-save.is-saved {
  background: #0f766e;
  border-color: #14b8a6;
  color: #ffffff;
}

/* Responsive adjustments */
@media (max-width: 640px) {
  .pickup-card {
    flex: 0 0 205px;
    width: 205px;
    padding: 10px;
  }
  .pickup-card-title {
    font-size: 12.5px;
    height: 34px;
  }
}


/* ==========================================================================
   StuDocu & Scribd-Style Instant Document Sheet Previews
   Guarantees 0ms Instant Visual Rendering — No Blank Previews, No Empty Shells
   ========================================================================== */
.studocu-paper-sheet {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 140px;
  height: 185px;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.08);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  user-select: none;
  pointer-events: none;
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
  transition: opacity 0.3s ease;
  z-index: 1;
}

.dark .studocu-paper-sheet,
html.dark .studocu-paper-sheet,
body.dark .studocu-paper-sheet,
[data-theme="dark"] .studocu-paper-sheet {
  background: #0f172a;
  border-color: #334155;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.4);
}

.studocu-paper-top-stripe {
  height: 4px;
  width: 100%;
  background: #e11d48;
}
.studocu-paper-sheet[data-accent="blue"] .studocu-paper-top-stripe { background: #2563eb; }
.studocu-paper-sheet[data-accent="emerald"] .studocu-paper-top-stripe { background: #059669; }
.studocu-paper-sheet[data-accent="amber"] .studocu-paper-top-stripe { background: #d97706; }
.studocu-paper-sheet[data-accent="indigo"] .studocu-paper-top-stripe { background: #6366f1; }
.studocu-paper-sheet[data-accent="purple"] .studocu-paper-top-stripe { background: #9333ea; }

.studocu-paper-header {
  padding: 8px 10px 4px;
  border-bottom: 1px solid #f1f5f9;
}
.dark .studocu-paper-header,
html.dark .studocu-paper-header,
body.dark .studocu-paper-header,
[data-theme="dark"] .studocu-paper-header {
  border-bottom-color: #1e293b;
}

.studocu-paper-board {
  font-size: 7.5px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #64748b;
  margin-bottom: 2px;
}
.dark .studocu-paper-board,
html.dark .studocu-paper-board,
body.dark .studocu-paper-board,
[data-theme="dark"] .studocu-paper-board { color: #94a3b8; }

.studocu-paper-title {
  font-size: 9px;
  font-weight: 800;
  color: #0f172a;
  line-height: 1.25;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 120px;
}
.dark .studocu-paper-title,
html.dark .studocu-paper-title,
body.dark .studocu-paper-title,
[data-theme="dark"] .studocu-paper-title { color: #f8fafc; }

.studocu-paper-type {
  display: inline-block;
  font-size: 6.5px;
  font-weight: 700;
  text-transform: uppercase;
  padding: 1px 4px;
  border-radius: 2px;
  background: #f1f5f9;
  color: #475569;
  margin-top: 3px;
}
.dark .studocu-paper-type,
html.dark .studocu-paper-type,
body.dark .studocu-paper-type,
[data-theme="dark"] .studocu-paper-type { background: #1e293b; color: #cbd5e1; }

.studocu-paper-body {
  padding: 6px 10px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.studocu-line {
  height: 2.5px;
  background: #e2e8f0;
  border-radius: 1px;
}
.dark .studocu-line,
html.dark .studocu-line,
body.dark .studocu-line,
[data-theme="dark"] .studocu-line { background: #334155; }

.studocu-line.line-title { width: 55%; height: 3.5px; background: #cbd5e1; }
.dark .studocu-line.line-title,
html.dark .studocu-line.line-title,
body.dark .studocu-line.line-title,
[data-theme="dark"] .studocu-line.line-title { background: #475569; }
.studocu-line.line-full { width: 100%; }
.studocu-line.line-mid { width: 75%; }
.studocu-line.line-short { width: 45%; }

.studocu-paper-mock-box {
  margin: 3px 0;
  padding: 4px;
  border: 1px dashed #cbd5e1;
  border-radius: 3px;
  background: #f8fafc;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.dark .studocu-paper-mock-box,
html.dark .studocu-paper-mock-box,
body.dark .studocu-paper-mock-box,
[data-theme="dark"] .studocu-paper-mock-box {
  border-color: #334155;
  background: #1e293b;
}

.studocu-mock-math {
  font-size: 6px;
  font-family: monospace;
  color: #64748b;
  text-align: center;
}
.dark .studocu-mock-math,
html.dark .studocu-mock-math,
body.dark .studocu-mock-math,
[data-theme="dark"] .studocu-mock-math { color: #94a3b8; }

.studocu-mock-table-lines {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.studocu-mock-table-lines span {
  height: 1.5px;
  background: #e2e8f0;
}
.dark .studocu-mock-table-lines span,
html.dark .studocu-mock-table-lines span,
body.dark .studocu-mock-table-lines span,
[data-theme="dark"] .studocu-mock-table-lines span { background: #334155; }

.studocu-paper-footer {
  padding: 4px 10px 6px;
  border-top: 1px solid #f1f5f9;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 6.5px;
  font-weight: 700;
  color: #94a3b8;
}
.dark .studocu-paper-footer,
html.dark .studocu-paper-footer,
body.dark .studocu-paper-footer,
[data-theme="dark"] .studocu-paper-footer {
  border-top-color: #1e293b;
  color: #64748b;
}

.pickup-sheet canvas,
.similar-sheet canvas,
.pickup-cached-preview-img {
  position: relative;
  z-index: 2;
  max-height: 196px;
  max-width: 92%;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.12);
  background: #ffffff;
  display: block;
  border-radius: 3px;
  animation: fadeInDocPreview 0.25s ease-out;
}
@keyframes fadeInDocPreview {
  from { opacity: 0; transform: scale(0.97); }
  to { opacity: 1; transform: scale(1); }
}


/* Actual Real Document Preview Images (Scribd/StuDocu CDN Style) */
.pickup-preview-img,
.similar-preview-img {
  width: auto;
  max-width: 90%;
  height: 192px;
  object-fit: contain;
  border-radius: 4px;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.12);
  display: block;
  margin: auto;
  background: #ffffff;
  transition: transform 0.2s ease;
}

.similar-preview-img {
  max-height: 172px;
  height: 172px;
}

.dark .pickup-preview-img,
html.dark .pickup-preview-img,
body.dark .pickup-preview-img,
[data-theme="dark"] .pickup-preview-img,
.dark .similar-preview-img {
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.45);
}

.pickup-sheet:hover .pickup-preview-img,
.similar-sheet:hover .similar-preview-img {
  transform: scale(1.02);
}