.exam-center-head {
  padding: 12px;
  margin-bottom: 10px;
}

.exam-center-title {
  font-size: 18px;
  font-weight: 900;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.exam-center-subtitle {
  font-size: 11px;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.exam-center-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
}

.exam-stat-box {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 7px;
  text-align: center;
  background: rgba(255,255,255,0.03);
}

.exam-stat-value {
  font-size: 14px;
  font-weight: 900;
  color: var(--text-primary);
}

.exam-stat-label {
  font-size: 10px;
  color: var(--text-muted);
}

.exam-center-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 10px;
}

.exam-card-btn {
  text-align: right;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: linear-gradient(180deg, rgba(16,27,47,0.95), rgba(10,18,32,0.98));
  color: var(--text-primary);
}

.exam-card-title {
  font-size: 12.5px;
  font-weight: 900;
  margin-bottom: 4px;
}

.exam-card-desc {
  font-size: 10.8px;
  line-height: 1.7;
  color: var(--text-secondary);
}

.exam-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 8px;
}

.exam-chip {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 10.5px;
  font-weight: 800;
  color: var(--text-secondary);
  background: var(--bg-card);
}

.exam-chip.active {
  border-color: var(--neon-purple);
  color: var(--text-primary);
  background: rgba(154,134,197,0.18);
}

.exam-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.exam-question-row {
  border: 1px solid rgba(154,134,197,0.34);
  border-radius: 10px;
  background: rgba(154,134,197,0.08);
  padding: 8px 10px;
}

.exam-question-meta {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 4px;
}

.exam-badge {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 2px 8px;
  font-size: 9.5px;
  color: var(--text-muted);
}

.exam-question-text {
  font-size: 11.5px;
  color: var(--text-primary);
  line-height: 1.8;
  margin-bottom: 7px;
}

.exam-open-btn {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 10.5px;
  font-weight: 800;
  color: var(--text-secondary);
  background: rgba(255,255,255,0.05);
}

.qp-wrap {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.qp-head {
  padding: 12px;
}

.qp-title {
  font-size: 15px;
  font-weight: 900;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.qp-meta {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  font-size: 10px;
  color: var(--text-muted);
}

.qp-question-card {
  padding: 12px;
}

.qp-stem {
  font-size: 13px;
  line-height: 1.9;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.qp-aid-card {
  border: 1px solid rgba(106,184,209,0.34);
  border-radius: 10px;
  background: rgba(106,184,209,0.08);
  padding: 8px;
  margin-bottom: 10px;
}

.qp-aid-title {
  font-size: 11px;
  font-weight: 900;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.qp-aid-image {
  width: 100%;
  max-height: 220px;
  object-fit: contain;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: rgba(7,12,22,0.66);
}

.qp-aid-chart {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  background: rgba(8,14,24,0.85);
  border: 1px solid rgba(255,255,255,0.08);
}

.qp-aid-axis {
  stroke: #a8b9cf;
  stroke-width: 1.2;
}

.qp-aid-grid {
  stroke: rgba(168,185,207,0.22);
  stroke-width: 1;
  stroke-dasharray: 4 4;
}

.qp-aid-line {
  fill: none;
  stroke-width: 2.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.qp-aid-eq-line {
  stroke: rgba(255,205,97,0.88);
  stroke-width: 1.4;
  stroke-dasharray: 5 4;
}

.qp-aid-label {
  fill: #c8d6e8;
  font-size: 10px;
  font-weight: 700;
}

.qp-aid-eq-text {
  fill: #ffd67a;
  font-size: 10px;
  font-weight: 800;
}

.qp-aid-legend {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 7px;
  color: var(--text-secondary);
  font-size: 10px;
}

.qp-aid-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.qp-aid-legend-dot {
  width: 9px;
  height: 9px;
  border-radius: 999px;
}

.qp-aid-note {
  margin-top: 6px;
  font-size: 10.5px;
  color: var(--text-muted);
  line-height: 1.7;
}

.qp-aid-table-wrap {
  overflow-x: auto;
}

.qp-aid-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 10.5px;
  color: var(--text-secondary);
}

.qp-aid-table th,
.qp-aid-table td {
  border: 1px solid rgba(255,255,255,0.12);
  padding: 6px;
  text-align: center;
}

.qp-choice-list {
  display: flex;
  flex-direction: column;
  gap: 7px;
  margin-bottom: 10px;
}

.qp-choice-btn {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 9px 10px;
  text-align: right;
  font-size: 12px;
  color: var(--text-primary);
  background: rgba(255,255,255,0.03);
}

.qp-choice-btn.selected {
  border-color: rgba(154,134,197,0.7);
  background: rgba(154,134,197,0.18);
}

.qp-choice-btn.correct {
  border-color: rgba(89,184,148,0.9);
  background: rgba(89,184,148,0.2);
}

.qp-choice-btn.wrong {
  border-color: rgba(207,125,136,0.9);
  background: rgba(207,125,136,0.2);
}

.qp-choice-btn.revealed {
  opacity: 0.7;
}

.qp-actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
}

.qp-confirm-btn,
.qp-law-btn,
.qp-back-btn {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 9px 10px;
  font-size: 11px;
  font-weight: 800;
  color: var(--text-secondary);
  background: rgba(255,255,255,0.05);
}

.qp-confirm-btn {
  background: linear-gradient(135deg, rgba(95,145,214,0.8), rgba(106,184,209,0.86));
  color: #091325;
}

.qp-feedback {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 9px 10px;
  font-size: 11.5px;
  line-height: 1.8;
}

.qp-feedback.ok {
  border-color: rgba(89,184,148,0.7);
  background: rgba(89,184,148,0.12);
  color: #d5f2e3;
}

.qp-feedback.bad {
  border-color: rgba(207,125,136,0.7);
  background: rgba(207,125,136,0.12);
  color: #f6d9dd;
}

.qp-example {
  border: 1px solid rgba(106,184,209,0.34);
  border-radius: 10px;
  background: rgba(106,184,209,0.09);
  padding: 9px 10px;
}

.qp-example-title {
  font-size: 11px;
  font-weight: 900;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.qp-example-summary {
  font-size: 11px;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.qp-example-steps {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.qp-example-step {
  font-size: 10.8px;
  color: var(--text-muted);
  line-height: 1.8;
}

.formula-ltr {
  direction: ltr;
  unicode-bidi: isolate;
  text-align: left;
  display: inline-block;
}

.search-kind-badge {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 2px 7px;
  font-size: 9px;
  font-weight: 800;
  margin-left: 6px;
  color: var(--text-muted);
}

.search-kind-badge.is-law { border-color: rgba(106,184,209,0.45); color: #9fd7ea; }
.search-kind-badge.is-exam-question { border-color: rgba(154,134,197,0.45); color: #cbbbe7; }
.search-kind-badge.is-worked-example { border-color: rgba(89,184,148,0.45); color: #bfe7d4; }

@media (max-width: 480px) {
  .exam-center-grid {
    grid-template-columns: 1fr;
  }
}

.exam-source-card {
  padding: 10px;
  margin-bottom: 10px;
}

.exam-source-title {
  font-size: 12px;
  font-weight: 900;
  margin-bottom: 6px;
  color: var(--text-primary);
}

.exam-source-row {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 7px 8px;
  background: rgba(255,255,255,0.03);
  margin-bottom: 6px;
}

.exam-source-name {
  font-size: 11px;
  font-weight: 800;
  color: var(--text-primary);
}

.exam-source-meta {
  font-size: 10px;
  color: var(--text-muted);
  line-height: 1.7;
}

.exam-source-ref {
  margin-top: 6px;
  font-size: 10px;
  color: var(--text-muted);
  line-height: 1.7;
}

.exam-training-head {
  padding: 12px;
  margin-bottom: 10px;
}

.exam-filter-card {
  padding: 10px;
  margin-bottom: 10px;
}

.exam-filter-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.exam-filter-grid label {
  font-size: 10px;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.exam-filter-grid select {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255,255,255,0.05);
  color: var(--text-primary);
  padding: 7px 8px;
  font-size: 11px;
}

.exam-filter-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 8px;
}

.exam-worked-card {
  padding: 10px;
}

.exam-worked-card.is-focused {
  border-color: rgba(106,184,209,0.65);
  box-shadow: 0 0 0 1px rgba(106,184,209,0.25) inset;
}

.exam-worked-title {
  font-size: 12px;
  font-weight: 900;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.exam-worked-q,
.exam-worked-given,
.exam-worked-final {
  font-size: 11px;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.exam-analytics-kpis {
  margin-top: 8px;
  font-size: 10.8px;
  color: var(--text-secondary);
  display: grid;
  gap: 5px;
  line-height: 1.7;
}