/**
 * xquiz — Main Stylesheet
 * Frontend + Admin shared variables, component styles
 */

/* ============================================================
   CSS Custom Properties
   ============================================================ */
:root {
  --xquiz-primary:      #3498db;
  --xquiz-secondary:    #2ecc71;
  --xquiz-success:      #27ae60;
  --xquiz-danger:       #e74c3c;
  --xquiz-warning:      #f39c12;
  --xquiz-purple:       #9b59b6;
  --xquiz-dark:         #2c3e50;
  --xquiz-light:        #ecf0f1;
  --xquiz-border:       #dde1e7;
  --xquiz-radius:       10px;
  --xquiz-radius-sm:    6px;
  --xquiz-shadow:       0 2px 12px rgba(0,0,0,.08);
  --xquiz-shadow-hover: 0 6px 24px rgba(0,0,0,.14);
  --xquiz-font:         'Segoe UI', system-ui, sans-serif;
  --xquiz-transition:   .18s ease;
}

/* ============================================================
   Base Wrap
   ============================================================ */
.xquiz-wrap {
  font-family: var(--xquiz-font);
  color: var(--xquiz-dark);
  line-height: 1.6;
}

/* ============================================================
   Buttons
   ============================================================ */
.xquiz-btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .55rem 1.2rem;
  border: 2px solid transparent;
  border-radius: var(--xquiz-radius-sm);
  font-size: .92rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: background var(--xquiz-transition), transform var(--xquiz-transition), box-shadow var(--xquiz-transition);
  white-space: nowrap;
}
.xquiz-btn:hover { transform: translateY(-1px); box-shadow: var(--xquiz-shadow); }
.xquiz-btn-primary   { background: var(--xquiz-primary); color: #fff; }
.xquiz-btn-secondary { background: var(--xquiz-secondary); color: #fff; }
.xquiz-btn-success   { background: var(--xquiz-success); color: #fff; }
.xquiz-btn-outline   { background: transparent; border-color: var(--xquiz-primary); color: var(--xquiz-primary); }
.xquiz-btn-outline:hover { background: var(--xquiz-primary); color: #fff; }
.xquiz-btn-disabled  { background: #ccc; color: #888; cursor: not-allowed; pointer-events: none; border-color: #ccc; }

/* ============================================================
   Page Header
   ============================================================ */
.xquiz-page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}
.xquiz-page-title {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--xquiz-dark);
  margin: 0;
}

/* ============================================================
   Category Navigation
   ============================================================ */
.xquiz-cat-nav {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-bottom: 1.5rem;
}
.xquiz-cat-tag {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .35rem .85rem;
  background: var(--xquiz-light);
  border-radius: 20px;
  font-size: .85rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--xquiz-dark);
  border: 2px solid transparent;
  transition: all var(--xquiz-transition);
}
.xquiz-cat-tag:hover,
.xquiz-cat-tag.active {
  background: var(--cat-color, var(--xquiz-primary));
  color: #fff;
  border-color: var(--cat-color, var(--xquiz-primary));
}
.xquiz-cat-count {
  background: rgba(255,255,255,.3);
  border-radius: 10px;
  padding: 0 .4rem;
  font-size: .75rem;
}

/* ============================================================
   Quiz Grid / List
   ============================================================ */
.xquiz-quiz-container.xquiz-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.4rem;
}
.xquiz-quiz-container.xquiz-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* ============================================================
   Quiz Card
   ============================================================ */
.xquiz-quiz-card {
  background: #fff;
  border-radius: var(--xquiz-radius);
  box-shadow: var(--xquiz-shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--xquiz-transition), transform var(--xquiz-transition);
}
.xquiz-quiz-card:hover { box-shadow: var(--xquiz-shadow-hover); transform: translateY(-2px); }
.xquiz-quiz-card.xquiz-unavailable { opacity: .65; }

.xquiz-quiz-container.xquiz-list .xquiz-quiz-card { flex-direction: row; }
.xquiz-quiz-container.xquiz-list .xquiz-card-image { width: 160px; flex-shrink: 0; }

.xquiz-card-image { position: relative; aspect-ratio: 16/9; overflow: hidden; }
.xquiz-card-image img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .4s; }
.xquiz-quiz-card:hover .xquiz-card-image img { transform: scale(1.04); }

.xquiz-diff-badge {
  position: absolute;
  top: .6rem;
  right: .6rem;
  padding: .2rem .6rem;
  border-radius: 20px;
  font-size: .72rem;
  font-weight: 700;
  color: #fff;
}
.xquiz-diff-easy   { background: var(--xquiz-success); }
.xquiz-diff-medium { background: var(--xquiz-warning); }
.xquiz-diff-hard   { background: var(--xquiz-danger); }
.xquiz-diff-expert { background: var(--xquiz-dark); }

.xquiz-card-body { padding: 1.1rem; display: flex; flex-direction: column; flex: 1; gap: .5rem; }
.xquiz-card-category { font-size: .75rem; font-weight: 700; color: var(--xquiz-primary); text-transform: uppercase; letter-spacing: .04em; }
.xquiz-card-title { font-size: 1.05rem; font-weight: 700; margin: 0; }
.xquiz-card-title a { color: var(--xquiz-dark); text-decoration: none; }
.xquiz-card-title a:hover { color: var(--xquiz-primary); }
.xquiz-card-desc { font-size: .87rem; color: #666; margin: 0; }

.xquiz-card-meta { display: flex; flex-wrap: wrap; gap: .5rem; }
.xquiz-meta-item {
  display: inline-flex;
  align-items: center;
  gap: .2rem;
  font-size: .8rem;
  background: var(--xquiz-light);
  border-radius: 20px;
  padding: .15rem .55rem;
  color: #555;
}

.xquiz-progress-bar-wrap {
  background: var(--xquiz-light);
  border-radius: 20px;
  height: 8px;
  overflow: hidden;
  position: relative;
}
.xquiz-progress-bar {
  height: 100%;
  background: var(--xquiz-primary);
  border-radius: 20px;
  transition: width .4s;
}
.xquiz-progress-label { font-size: .75rem; color: #666; display: block; margin-top: .2rem; }
.xquiz-attempts-left { font-size: .78rem; color: #888; margin: 0; }
.xquiz-card-footer { margin-top: auto; padding-top: .5rem; }

/* ============================================================
   Pagination
   ============================================================ */
.xquiz-pagination { display: flex; gap: .4rem; flex-wrap: wrap; margin-top: 1.5rem; }
.xquiz-page-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--xquiz-radius-sm);
  background: var(--xquiz-light);
  color: var(--xquiz-dark);
  text-decoration: none;
  font-size: .88rem;
  font-weight: 600;
  transition: background var(--xquiz-transition);
}
.xquiz-page-active,
.xquiz-page-btn:hover { background: var(--xquiz-primary); color: #fff; }

.xquiz-empty { text-align: center; padding: 3rem 1rem; color: #999; font-size: 1.05rem; }

/* ============================================================
   Quiz Taking Page
   ============================================================ */
#xquiz-take { max-width: 1100px; margin: 0 auto; }

.xquiz-take-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background: var(--xquiz-dark);
  color: #fff;
  padding: 1rem 1.4rem;
  border-radius: var(--xquiz-radius) var(--xquiz-radius) 0 0;
  flex-wrap: wrap;
}
.xquiz-take-title h1 { font-size: 1.1rem; font-weight: 700; margin: 0; }
.xquiz-take-controls { display: flex; align-items: center; gap: 1rem; }

.xquiz-timer {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  background: rgba(255,255,255,.12);
  padding: .35rem .8rem;
  border-radius: var(--xquiz-radius-sm);
  font-size: 1rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.xquiz-timer-warn   { background: rgba(243,156,18,.35); }
.xquiz-timer-danger { background: rgba(231,76,60,.5); animation: xquiz-pulse .6s infinite alternate; }
@keyframes xquiz-pulse { from { opacity: 1; } to { opacity: .6; } }

.xquiz-take-progress-bar-wrap { height: 6px; background: var(--xquiz-light); }
.xquiz-take-progress-bar { height: 100%; background: var(--xquiz-primary); transition: width .3s; }
.xquiz-take-progress-info { font-size: .85rem; opacity: .85; }

.xquiz-take-layout {
  display: grid;
  grid-template-columns: 1fr 220px;
  gap: 1.2rem;
  align-items: start;
  margin-top: 1rem;
}
@media (max-width: 768px) { .xquiz-take-layout { grid-template-columns: 1fr; } }

/* Question slide */
.xquiz-question-slide { display: none; }
.xquiz-question-slide.active { display: block; }

.xquiz-q-top {
  display: flex;
  align-items: center;
  gap: .6rem;
  margin-bottom: .8rem;
}
.xquiz-q-number { font-size: .82rem; color: #888; font-weight: 600; }
.xquiz-q-points { margin-left: auto; background: var(--xquiz-light); border-radius: 20px; padding: .1rem .55rem; font-size: .78rem; font-weight: 700; color: var(--xquiz-primary); }

.xquiz-mark-btn { background: none; border: none; cursor: pointer; font-size: 1rem; opacity: .35; transition: opacity var(--xquiz-transition); }
.xquiz-mark-btn.marked { opacity: 1; }
.xquiz-mark-btn:hover  { opacity: .75; }

.xquiz-q-text { font-size: 1.05rem; font-weight: 600; line-height: 1.55; margin-bottom: 1rem; }
.xquiz-q-image { margin-bottom: 1rem; border-radius: var(--xquiz-radius-sm); overflow: hidden; }
.xquiz-q-image img { max-width: 100%; max-height: 300px; object-fit: contain; display: block; }

.xquiz-q-hint summary { cursor: pointer; font-size: .85rem; color: var(--xquiz-warning); font-weight: 600; }
.xquiz-q-hint p { font-size: .87rem; color: #666; margin: .4rem 0 0; }
.xquiz-q-instruction { font-size: .82rem; color: #888; margin-bottom: .6rem; }

/* Options */
.xquiz-q-options { display: flex; flex-direction: column; gap: .5rem; }
.xquiz-option-label {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .75rem 1rem;
  border: 2px solid var(--xquiz-border);
  border-radius: var(--xquiz-radius-sm);
  cursor: pointer;
  transition: border-color var(--xquiz-transition), background var(--xquiz-transition);
  user-select: none;
}
.xquiz-option-label:hover { border-color: var(--xquiz-primary); background: rgba(52,152,219,.04); }
.xquiz-option-label.selected { border-color: var(--xquiz-primary); background: rgba(52,152,219,.1); }
.xquiz-option-label input { accent-color: var(--xquiz-primary); flex-shrink: 0; }
.xquiz-option-box { display: none; }
.xquiz-opt-img { max-height: 60px; border-radius: 4px; }
.xquiz-option-text { flex: 1; }

.xquiz-tf-label { justify-content: center; font-size: 1rem; font-weight: 700; }

.xquiz-text-answer {
  width: 100%;
  padding: .75rem 1rem;
  border: 2px solid var(--xquiz-border);
  border-radius: var(--xquiz-radius-sm);
  font-family: var(--xquiz-font);
  font-size: .95rem;
  resize: vertical;
  transition: border-color var(--xquiz-transition);
}
.xquiz-text-answer:focus { outline: none; border-color: var(--xquiz-primary); }

.xquiz-ordering-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: .4rem; }
.xquiz-ordering-item {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .65rem 1rem;
  border: 2px solid var(--xquiz-border);
  border-radius: var(--xquiz-radius-sm);
  background: #fff;
  cursor: grab;
}
.xquiz-ordering-item.dragging { opacity: .5; background: var(--xquiz-light); }
.xquiz-drag-handle { color: #bbb; font-size: 1.1rem; cursor: grab; }

.xquiz-q-nav {
  display: flex;
  justify-content: space-between;
  gap: .7rem;
  margin-top: 1.4rem;
  padding-top: 1rem;
  border-top: 1px solid var(--xquiz-border);
}

/* Navigator sidebar */
.xquiz-navigator {
  background: #fff;
  border-radius: var(--xquiz-radius);
  box-shadow: var(--xquiz-shadow);
  padding: 1rem;
  position: sticky;
  top: 1rem;
}
.xquiz-nav-title { font-size: .85rem; font-weight: 700; margin-bottom: .6rem; color: #888; }
.xquiz-nav-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: .3rem; }
.xquiz-nav-btn {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--xquiz-border);
  border-radius: var(--xquiz-radius-sm);
  background: none;
  font-size: .78rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--xquiz-transition);
}
.xquiz-nav-btn:hover   { border-color: var(--xquiz-primary); color: var(--xquiz-primary); }
.xquiz-nav-btn.answered{ background: var(--xquiz-primary); border-color: var(--xquiz-primary); color: #fff; }
.xquiz-nav-btn.marked  { border-color: var(--xquiz-warning); background: rgba(243,156,18,.15); }
.xquiz-nav-btn.answered.marked { background: var(--xquiz-warning); border-color: var(--xquiz-warning); color: #fff; }

.xquiz-nav-legend { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: .6rem; font-size: .72rem; color: #888; align-items: center; }
.xquiz-nav-dot { display: inline-block; width: 10px; height: 10px; border-radius: 3px; border: 2px solid var(--xquiz-border); }
.xquiz-nav-dot.answered { background: var(--xquiz-primary); border-color: var(--xquiz-primary); }
.xquiz-nav-dot.marked   { border-color: var(--xquiz-warning); background: rgba(243,156,18,.2); }

/* ============================================================
   Result Page
   ============================================================ */
#xquiz-result { max-width: 800px; margin: 0 auto; }

.xquiz-result-card {
  border-radius: var(--xquiz-radius);
  padding: 2rem;
  margin-bottom: 1.5rem;
  text-align: center;
  box-shadow: var(--xquiz-shadow);
}
.xquiz-result-pass { background: linear-gradient(135deg, #d5f5e3, #a9dfbf); border: 2px solid var(--xquiz-success); }
.xquiz-result-fail { background: linear-gradient(135deg, #fadbd8, #f1948a40); border: 2px solid var(--xquiz-danger); }

.xquiz-result-icon { font-size: 3rem; display: block; margin-bottom: .3rem; }
.xquiz-result-status { font-size: 1.4rem; font-weight: 800; }
.xquiz-result-status.xquiz-pass { color: var(--xquiz-success); }
.xquiz-result-status.xquiz-fail { color: var(--xquiz-danger); }
.xquiz-result-msg { font-size: .95rem; color: #555; margin: .5rem 0 0; }

.xquiz-result-score-circle { position: relative; width: 160px; height: 160px; margin: 1.2rem auto; }
.xquiz-donut { width: 100%; height: 100%; }
.xquiz-donut-label { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.xquiz-donut-pct { font-size: 2rem; font-weight: 800; line-height: 1; }
.xquiz-donut-sub { font-size: .75rem; color: #888; }

.xquiz-result-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; margin: 1.2rem 0; }
@media (max-width: 600px) { .xquiz-result-stats { grid-template-columns: repeat(2, 1fr); } }
.xquiz-stat-item { background: rgba(255,255,255,.6); border-radius: var(--xquiz-radius-sm); padding: .8rem .5rem; }
.xquiz-stat-num { display: block; font-size: 1.5rem; font-weight: 800; }
.xquiz-stat-lbl { font-size: .75rem; color: #666; }
.xquiz-stat-correct .xquiz-stat-num { color: var(--xquiz-success); }
.xquiz-stat-wrong   .xquiz-stat-num { color: var(--xquiz-danger); }
.xquiz-stat-skip    .xquiz-stat-num { color: var(--xquiz-warning); }

.xquiz-result-meta { display: flex; justify-content: center; gap: 1.2rem; font-size: .82rem; color: #777; flex-wrap: wrap; }
.xquiz-result-actions { display: flex; gap: .7rem; flex-wrap: wrap; margin-bottom: 1.5rem; }

/* Review */
.xquiz-review h2 { font-size: 1.2rem; margin-bottom: 1rem; }
.xquiz-review-item {
  background: #fff;
  border-radius: var(--xquiz-radius);
  border-left: 4px solid var(--xquiz-border);
  padding: 1rem 1.2rem;
  margin-bottom: .8rem;
  box-shadow: var(--xquiz-shadow);
}
.xquiz-correct { border-left-color: var(--xquiz-success); }
.xquiz-wrong   { border-left-color: var(--xquiz-danger); }
.xquiz-partial { border-left-color: var(--xquiz-warning); }
.xquiz-skipped { border-left-color: #ccc; opacity: .75; }

.xquiz-review-header { display: flex; align-items: flex-start; gap: .6rem; margin-bottom: .6rem; }
.xquiz-review-num { font-size: .8rem; color: #aaa; font-weight: 700; flex-shrink: 0; }
.xquiz-review-question { flex: 1; font-weight: 600; font-size: .95rem; }
.xquiz-review-points { font-size: .8rem; font-weight: 700; white-space: nowrap; }
.xquiz-review-img { max-width: 200px; border-radius: var(--xquiz-radius-sm); margin-bottom: .6rem; }

.xquiz-review-options { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: .3rem; }
.xquiz-review-opt {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .4rem .7rem;
  border-radius: var(--xquiz-radius-sm);
  font-size: .87rem;
}
.xquiz-opt-correct-chosen { background: rgba(39,174,96,.15); border: 1px solid var(--xquiz-success); }
.xquiz-opt-correct        { background: rgba(39,174,96,.07); border: 1px solid rgba(39,174,96,.3); }
.xquiz-opt-wrong-chosen   { background: rgba(231,76,60,.12); border: 1px solid var(--xquiz-danger); }
.xquiz-opt-neutral        { background: #f9f9f9; border: 1px solid transparent; }
.xquiz-opt-icon { font-size: .9rem; width: 16px; text-align: center; }
.xquiz-review-explanation { background: #fffde7; border-radius: var(--xquiz-radius-sm); padding: .6rem .8rem; font-size: .85rem; color: #666; margin-top: .6rem; display: flex; gap: .4rem; }

/* ============================================================
   Leaderboard
   ============================================================ */
.xquiz-lb-filters { display: flex; gap: .8rem; align-items: center; flex-wrap: wrap; margin-bottom: 1.2rem; }
.xquiz-select { padding: .45rem .75rem; border: 2px solid var(--xquiz-border); border-radius: var(--xquiz-radius-sm); font-size: .88rem; }
.xquiz-period-tabs { display: flex; gap: .3rem; }
.xquiz-period-tab {
  padding: .35rem .8rem;
  border-radius: 20px;
  font-size: .82rem;
  font-weight: 600;
  text-decoration: none;
  color: #777;
  background: var(--xquiz-light);
  transition: all var(--xquiz-transition);
}
.xquiz-period-tab.active,
.xquiz-period-tab:hover { background: var(--xquiz-primary); color: #fff; }

.xquiz-lb-subtitle { font-size: 1rem; font-weight: 600; margin: 0 0 1rem; color: #555; }

.xquiz-podium { display: flex; align-items: flex-end; justify-content: center; gap: .5rem; margin-bottom: 1.5rem; }
.xquiz-podium-place { text-align: center; padding: .8rem 1.2rem; border-radius: var(--xquiz-radius); min-width: 100px; }
.xquiz-podium-1 { background: linear-gradient(135deg, #ffd700, #ffec8b); order: 2; padding-bottom: 1.8rem; }
.xquiz-podium-2 { background: linear-gradient(135deg, #c0c0c0, #e0e0e0); order: 1; padding-bottom: 1rem; }
.xquiz-podium-3 { background: linear-gradient(135deg, #cd7f32, #dda070); order: 3; padding-bottom: .5rem; }
.xquiz-podium-medal { display: block; font-size: 1.8rem; }

.xquiz-table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.xquiz-table th, .xquiz-table td { padding: .7rem .9rem; border-bottom: 1px solid var(--xquiz-border); text-align: left; }
.xquiz-table th { font-weight: 700; color: #666; font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; background: var(--xquiz-light); }
.xquiz-table tbody tr:hover { background: #f8f9fa; }
.xquiz-lb-top-1 { background: rgba(255,215,0,.08); }
.xquiz-lb-top-2 { background: rgba(192,192,192,.08); }
.xquiz-lb-top-3 { background: rgba(205,127,50,.08); }
.xquiz-lb-avatar { width: 28px; height: 28px; border-radius: 50%; vertical-align: middle; margin-right: .4rem; object-fit: cover; }
.xquiz-lb-rank { font-size: 1.1rem; }
.xquiz-lb-bar-wrap { display: flex; align-items: center; gap: .5rem; }
.xquiz-lb-bar { height: 8px; background: var(--xquiz-primary); border-radius: 4px; flex-shrink: 0; }
.xquiz-link-small { font-size: .8rem; color: var(--xquiz-primary); text-decoration: none; }
.xquiz-link-small:hover { text-decoration: underline; }

/* Badges */
.xquiz-badge-pass { display: inline-block; padding: .15rem .55rem; border-radius: 20px; font-size: .75rem; font-weight: 700; background: rgba(39,174,96,.15); color: var(--xquiz-success); }
.xquiz-badge-fail { display: inline-block; padding: .15rem .55rem; border-radius: 20px; font-size: .75rem; font-weight: 700; background: rgba(231,76,60,.12); color: var(--xquiz-danger); }

/* Previous attempts table */
.xquiz-prev-attempts { margin-top: 1.5rem; }
.xquiz-prev-attempts h2 { font-size: 1.1rem; margin-bottom: .8rem; }
.xquiz-row-current { background: rgba(52,152,219,.07) !important; font-weight: 600; }

/* ============================================================
   Block Styles
   ============================================================ */
.xquiz-block-recent { list-style: none; padding: 0; margin: 0; }
.xquiz-block-recent-item { display: flex; align-items: center; gap: .6rem; padding: .5rem 0; border-bottom: 1px solid var(--xquiz-border); }
.xquiz-block-thumb { width: 48px; height: 36px; object-fit: cover; border-radius: 4px; flex-shrink: 0; }
.xquiz-block-recent-info { flex: 1; min-width: 0; }
.xquiz-block-recent-title { display: block; font-size: .88rem; font-weight: 600; text-decoration: none; color: var(--xquiz-dark); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.xquiz-block-meta { font-size: .75rem; color: #999; }
.xquiz-block-btn { font-size: .8rem; background: var(--xquiz-primary); color: #fff; border-radius: 20px; padding: .15rem .55rem; text-decoration: none; flex-shrink: 0; }
.xquiz-block-more { display: block; text-align: right; font-size: .78rem; color: var(--xquiz-primary); text-decoration: none; margin-top: .5rem; }

.xquiz-block-topscores { list-style: none; padding: 0; margin: 0; }
.xquiz-block-score-item { display: flex; align-items: center; gap: .5rem; padding: .4rem 0; border-bottom: 1px solid var(--xquiz-border); }
.xquiz-block-rank { font-size: .9rem; width: 24px; text-align: center; flex-shrink: 0; }
.xquiz-block-score-name { flex: 1; font-size: .88rem; text-decoration: none; color: var(--xquiz-dark); }
.xquiz-block-score-pct { font-size: .82rem; font-weight: 700; color: var(--xquiz-primary); }

.xquiz-block-random .xquiz-block-q-text { font-weight: 600; margin-bottom: .6rem; font-size: .95rem; }
.xquiz-block-q-opts { list-style: none; padding: 0; margin: 0 0 .6rem; }
.xquiz-block-opt-label { display: flex; align-items: center; gap: .4rem; padding: .35rem .5rem; border-radius: var(--xquiz-radius-sm); cursor: pointer; font-size: .87rem; transition: background var(--xquiz-transition); }
.xquiz-block-opt-label:hover { background: var(--xquiz-light); }
.xquiz-block-check-btn { padding: .4rem .9rem; background: var(--xquiz-primary); color: #fff; border: none; border-radius: var(--xquiz-radius-sm); cursor: pointer; font-size: .85rem; font-weight: 600; margin-bottom: .4rem; }
.xquiz-block-result { font-weight: 700; font-size: .9rem; padding: .3rem .6rem; border-radius: var(--xquiz-radius-sm); }
.xquiz-block-correct { background: rgba(39,174,96,.1); color: var(--xquiz-success); }
.xquiz-block-wrong   { background: rgba(231,76,60,.1); color: var(--xquiz-danger); }

/* ============================================================
   Admin Styles
   ============================================================ */
.xquiz-admin-wrap { font-family: var(--xquiz-font); }
.xquiz-admin-header { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 1.2rem; flex-wrap: wrap; }
.xquiz-admin-header h2 { margin: 0; font-size: 1.3rem; }
.xquiz-admin-header-actions { display: flex; gap: .5rem; flex-wrap: wrap; }
.xquiz-admin-subtitle { font-size: .85rem; color: #888; margin: .2rem 0 0; }

.xquiz-admin-btn {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  padding: .45rem 1rem;
  background: var(--xquiz-light);
  color: var(--xquiz-dark);
  border: 2px solid var(--xquiz-border);
  border-radius: var(--xquiz-radius-sm);
  font-size: .85rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--xquiz-transition);
}
.xquiz-admin-btn:hover { background: var(--xquiz-primary); color: #fff; border-color: var(--xquiz-primary); }
.xquiz-btn-primary { background: var(--xquiz-primary); color: #fff; border-color: var(--xquiz-primary); }
.xquiz-btn-outline { background: transparent; }
.xquiz-btn-danger  { background: var(--xquiz-danger); color: #fff; border-color: var(--xquiz-danger); }
.xquiz-btn-danger:hover { background: #c0392b; border-color: #c0392b; }

.xquiz-admin-search { display: flex; gap: .5rem; margin-bottom: 1rem; flex-wrap: wrap; }
.xquiz-admin-search input { flex: 1; min-width: 180px; }

.xquiz-admin-table { width: 100%; border-collapse: collapse; font-size: .88rem; }
.xquiz-admin-table th, .xquiz-admin-table td { padding: .65rem .85rem; border-bottom: 1px solid var(--xquiz-border); text-align: left; vertical-align: middle; }
.xquiz-admin-table th { background: var(--xquiz-light); font-weight: 700; font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; color: #666; }
.xquiz-admin-table tbody tr:hover { background: #f7f9fb; }
.xquiz-td-center { text-align: center; }
.xquiz-td-handle { width: 30px; text-align: center; color: #ccc; cursor: grab; }
.xquiz-td-actions { white-space: nowrap; display: flex; gap: .3rem; align-items: center; }
.xquiz-td-qtext { max-width: 340px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.xquiz-admin-action-btn { font-size: 1rem; padding: .2rem .4rem; background: none; border: none; cursor: pointer; text-decoration: none; opacity: .65; transition: opacity var(--xquiz-transition); border-radius: 4px; }
.xquiz-admin-action-btn:hover { opacity: 1; background: var(--xquiz-light); }

.xquiz-status-badge, .xquiz-type-badge { display: inline-block; padding: .15rem .55rem; border-radius: 20px; font-size: .72rem; font-weight: 700; }
.xquiz-status-badge.xquiz-active, .xquiz-active  { background: rgba(39,174,96,.15); color: var(--xquiz-success); }
.xquiz-status-badge.xquiz-inactive,.xquiz-inactive{ background: rgba(231,76,60,.1); color: var(--xquiz-danger); }
.xquiz-type-badge { background: rgba(52,152,219,.1); color: var(--xquiz-primary); }

/* Admin form */
.xquiz-admin-form { max-width: 1100px; }
.xquiz-admin-form-grid { display: grid; grid-template-columns: 1fr 320px; gap: 1.4rem; }
@media (max-width: 900px) { .xquiz-admin-form-grid { grid-template-columns: 1fr; } }
.xquiz-form-group { margin-bottom: 1rem; }
.xquiz-form-label { display: block; font-size: .85rem; font-weight: 700; margin-bottom: .3rem; color: #555; }
.xquiz-form-label.xquiz-required::after { content: ' *'; color: var(--xquiz-danger); }
.xquiz-admin-input, .xquiz-admin-select, .xquiz-admin-textarea {
  width: 100%;
  padding: .5rem .75rem;
  border: 2px solid var(--xquiz-border);
  border-radius: var(--xquiz-radius-sm);
  font-family: var(--xquiz-font);
  font-size: .9rem;
  transition: border-color var(--xquiz-transition);
  box-sizing: border-box;
}
.xquiz-admin-input:focus, .xquiz-admin-select:focus, .xquiz-admin-textarea:focus { outline: none; border-color: var(--xquiz-primary); }
.xquiz-admin-color { padding: .3rem; height: 38px; cursor: pointer; }
.xquiz-admin-textarea { resize: vertical; min-height: 80px; }
.xquiz-admin-form-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
@media (max-width: 700px) { .xquiz-admin-form-row { grid-template-columns: 1fr; } }
.xquiz-form-checks { display: flex; flex-direction: column; gap: .4rem; }
.xquiz-check-label { display: flex; align-items: center; gap: .4rem; font-size: .88rem; cursor: pointer; }
.xquiz-admin-fieldset { border: 2px solid var(--xquiz-border); border-radius: var(--xquiz-radius); padding: 1rem 1.2rem; margin: 0 0 1rem; }
.xquiz-admin-fieldset legend { font-weight: 700; font-size: .88rem; padding: 0 .4rem; }
.xquiz-form-actions { display: flex; gap: .6rem; flex-wrap: wrap; margin-top: 1.2rem; padding-top: 1rem; border-top: 1px solid var(--xquiz-border); }
.xquiz-admin-alert { padding: .8rem 1rem; border-radius: var(--xquiz-radius-sm); margin-bottom: 1rem; font-size: .9rem; font-weight: 600; }
.xquiz-alert-error { background: rgba(231,76,60,.1); border: 1px solid rgba(231,76,60,.3); color: var(--xquiz-danger); }
.xquiz-admin-hint { font-size: .8rem; color: #999; margin-bottom: .6rem; }

/* Admin stats */
.xquiz-admin-stats-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 1rem; margin-bottom: 1.4rem; }
.xquiz-admin-stat-card { background: #fff; border-radius: var(--xquiz-radius); padding: 1.1rem 1rem; box-shadow: var(--xquiz-shadow); text-align: center; border-top: 4px solid var(--xquiz-border); }
.xquiz-stat-primary { border-top-color: var(--xquiz-primary); }
.xquiz-stat-success { border-top-color: var(--xquiz-success); }
.xquiz-stat-info    { border-top-color: #16a085; }
.xquiz-stat-warning { border-top-color: var(--xquiz-warning); }
.xquiz-stat-purple  { border-top-color: var(--xquiz-purple); }
.xquiz-stat-icon  { font-size: 1.6rem; display: block; margin-bottom: .3rem; }
.xquiz-stat-value { display: block; font-size: 1.6rem; font-weight: 800; }
.xquiz-stat-label { font-size: .75rem; color: #888; }

.xquiz-admin-dash-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(400px, 1fr)); gap: 1.2rem; }
.xquiz-admin-section { background: #fff; border-radius: var(--xquiz-radius); padding: 1.2rem; box-shadow: var(--xquiz-shadow); }
.xquiz-admin-section h3 { font-size: 1rem; font-weight: 700; margin: 0 0 .8rem; }
.xquiz-admin-link-more { display: block; text-align: right; font-size: .8rem; color: var(--xquiz-primary); margin-top: .6rem; text-decoration: none; }
.xquiz-admin-empty { text-align: center; padding: 1.5rem; color: #aaa; }

.xquiz-dash-bar-wrap { display: flex; align-items: center; gap: .4rem; }
.xquiz-dash-bar { height: 8px; border-radius: 4px; flex-shrink: 0; min-width: 4px; }
.xquiz-bar-pass { background: var(--xquiz-success); }
.xquiz-bar-fail { background: var(--xquiz-danger); }

.xquiz-admin-pagination { display: flex; gap: .3rem; margin-top: 1rem; flex-wrap: wrap; }
.xquiz-admin-page { display: inline-flex; align-items: center; justify-content: center; min-width: 32px; height: 32px; border-radius: var(--xquiz-radius-sm); background: var(--xquiz-light); color: var(--xquiz-dark); text-decoration: none; font-size: .82rem; font-weight: 600; padding: 0 .4rem; }
.xquiz-admin-page.active, .xquiz-admin-page:hover { background: var(--xquiz-primary); color: #fff; }

.xquiz-color-dot { display: inline-block; width: 14px; height: 14px; border-radius: 3px; vertical-align: middle; margin-right: .3rem; }

.xquiz-options-table { margin-bottom: .6rem; }
.xquiz-sortable-row.xquiz-dragging { opacity: .4; background: #e8f4fd; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 600px) {
  .xquiz-take-header { border-radius: 0; }
  .xquiz-result-stats { grid-template-columns: repeat(2, 1fr); }
  .xquiz-admin-table { font-size: .78rem; }
  .xquiz-admin-table th, .xquiz-admin-table td { padding: .45rem .5rem; }
  .xquiz-admin-form-grid { grid-template-columns: 1fr; }
}

/* ─────────────────────────────────────────────────────────
   Certificate
───────────────────────────────────────────────────────── */
.xquiz-certificate-wrap {
  margin: 2rem auto;
  max-width: 720px;
}
.xquiz-certificate {
  background: #fff;
  border: 3px solid var(--xquiz-primary, #3498db);
  border-radius: 12px;
  padding: 2.5rem;
  text-align: center;
  box-shadow: 0 4px 24px rgba(0,0,0,.10);
  font-family: Georgia, 'Times New Roman', serif;
}
.xquiz-cert-border {
  border: 1.5px solid #d4a017;
  border-radius: 8px;
  padding: 2rem;
  background: linear-gradient(135deg, #fffdf5 0%, #fff 100%);
}
.xquiz-cert-header { margin-bottom: 1rem; }
.xquiz-cert-icon   { font-size: 3rem; display:block; margin-bottom:.5rem; }
.xquiz-cert-header h2 {
  font-size: 1.6rem;
  color: #2c3e50;
  letter-spacing: .05em;
  margin: 0;
}
.xquiz-cert-congrats {
  color: #555;
  font-size: 1rem;
  margin: 1rem 0 1.5rem;
}
.xquiz-cert-body {
  display: flex;
  flex-direction: column;
  gap: .7rem;
  text-align: left;
  max-width: 400px;
  margin: 0 auto 1.5rem;
}
.xquiz-cert-field {
  display: flex;
  gap: .5rem;
  font-size: .95rem;
}
.xquiz-cert-label {
  color: #888;
  min-width: 80px;
}
.xquiz-cert-value { color: #222; }
.xquiz-cert-footer { margin-top: 1.5rem; }
.xquiz-cert-print-btn { font-family: sans-serif; }

@media print {
  /* Hide everything except the certificate */
  body > *:not(.xquiz-wrap) { display: none !important; }
  .xquiz-wrap > *:not(.xquiz-certificate-wrap) { display: none !important; }
  .xquiz-certificate-wrap { margin: 0; }
  .xquiz-cert-footer { display: none; }
}

/* ── Zorluk Filtresi ─────────────────────────────────── */
.xquiz-diff-nav{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 20px 0;padding:12px 16px;background:var(--xquiz-bg-card,#fff);border-radius:8px;box-shadow:var(--xquiz-shadow)}
.xquiz-diff-tag{display:inline-block;padding:6px 14px;border-radius:20px;font-size:.82em;font-weight:600;color:var(--xquiz-text-muted,#666);background:var(--xquiz-bg,#f5f5f5);text-decoration:none;border:2px solid transparent;transition:all .2s}
.xquiz-diff-tag:hover{background:var(--xquiz-primary,#3498db);color:#fff}
.xquiz-diff-tag.active{background:var(--xquiz-primary,#3498db);color:#fff;border-color:var(--xquiz-primary,#3498db)}

/* ── Paylaşma Butonları ──────────────────────────────── */
.xquiz-share-wrap{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin:16px 0;padding:14px 16px;background:var(--xquiz-bg-card,#fff);border-radius:8px;box-shadow:var(--xquiz-shadow)}
.xquiz-share-label{font-weight:600;color:var(--xquiz-text-muted,#666);font-size:.9em}
.xquiz-btn-share{font-size:.82em;padding:7px 14px;border-radius:20px}
.xquiz-share-twitter{background:#000;color:#fff}
.xquiz-share-whatsapp{background:#25d366;color:#fff}
.xquiz-share-copy{background:var(--xquiz-bg,#f0f0f0);color:var(--xquiz-text,#333);border:1px solid #ddd}
.xquiz-share-copy:hover,.xquiz-share-twitter:hover,.xquiz-share-whatsapp:hover{opacity:.85}