/* =============================================
   Question Bank
   ============================================= */

.msv-page {
  padding-top: 36px;
  padding-bottom: 80px;
}

/* ── FILTER PANEL ── */
.msv-filters {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1.5px solid var(--gray-100);
  border-radius: var(--radius-xl);
  overflow: hidden;
  margin-bottom: 28px;
}

[data-theme="dark"] .msv-filters {
  background: rgba(255,255,255,0.04);
  border-color: rgba(255,255,255,0.08);
}

.msv-filter-row {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--gray-100);
}

.msv-filter-row:last-child { border-bottom: none; }

[data-theme="dark"] .msv-filter-row {
  border-bottom-color: rgba(255,255,255,0.06);
}

.msv-filter-label {
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.7px;
  color: var(--gray-400);
  flex-shrink: 0;
  padding-top: 8px;
  min-width: 52px;
}

.msv-filter-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  flex: 1;
}

.msv-filter-hint {
  font-size: 0.82rem;
  color: var(--gray-400);
  font-style: italic;
  padding-top: 6px;
}

.msv-filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 14px;
  border: 1.5px solid var(--gray-200);
  border-radius: 100px;
  background: var(--white);
  font-family: var(--font);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--gray-600);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.msv-filter-btn:hover {
  border-color: var(--green-400);
  color: var(--green-700);
  background: var(--green-50);
}

.msv-filter-btn.active {
  background: var(--green-600);
  border-color: var(--green-600);
  color: white;
}

[data-theme="dark"] .msv-filter-btn {
  background: rgba(255,255,255,0.05);
  border-color: rgba(255,255,255,0.1);
  color: #94a3b8;
}

[data-theme="dark"] .msv-filter-btn:hover:not(.active) {
  background: rgba(99,102,241,0.1);
  border-color: rgba(99,102,241,0.3);
  color: #a5b4fc;
}

[data-theme="dark"] .msv-filter-btn.active {
  background: var(--green-600);
  border-color: var(--green-600);
  color: white;
}

.msv-topic-count {
  font-size: 0.68rem;
  font-weight: 700;
  background: rgba(0,0,0,0.12);
  border-radius: 100px;
  padding: 1px 6px;
}

.msv-filter-btn.active .msv-topic-count {
  background: rgba(255,255,255,0.25);
}

/* ── RESULTS BAR ── */
.msv-results-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-500);
}

.msv-expand-all-btn {
  background: none;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-md);
  font-family: var(--font);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--gray-600);
  padding: 6px 14px;
  cursor: pointer;
  transition: all var(--transition);
}

.msv-expand-all-btn:hover {
  border-color: var(--green-400);
  color: var(--green-700);
  background: var(--green-50);
}

[data-theme="dark"] .msv-expand-all-btn {
  border-color: rgba(255,255,255,0.1);
  color: #94a3b8;
}

[data-theme="dark"] .msv-expand-all-btn:hover {
  border-color: rgba(99,102,241,0.4);
  color: #a5b4fc;
  background: rgba(99,102,241,0.08);
}

/* ── EMPTY STATE ── */
.msv-list-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 72px 24px;
  background: var(--white);
  border: 1.5px solid var(--gray-100);
  border-radius: var(--radius-xl);
  text-align: center;
  color: var(--gray-400);
  font-size: 0.92rem;
}

[data-theme="dark"] .msv-list-empty {
  background: rgba(255,255,255,0.03);
  border-color: rgba(255,255,255,0.07);
}

.msv-empty-icon { font-size: 2.4rem; }

/* ── CARD LIST ── */
.msv-card-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* ── QUESTION CARD ── */
.qb-card {
  background: var(--white);
  border: 1.5px solid var(--gray-100);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: box-shadow var(--transition);
}

.qb-card:hover {
  box-shadow: var(--shadow-md);
}

[data-theme="dark"] .qb-card {
  background: rgba(255,255,255,0.04);
  border-color: rgba(255,255,255,0.08);
}

[data-theme="dark"] .qb-card:hover {
  box-shadow: 0 4px 24px rgba(0,0,0,0.3);
}

.qb-card.open {
  border-color: rgba(22,163,74,0.3);
}

[data-theme="dark"] .qb-card.open {
  border-color: rgba(74,222,128,0.2);
}

/* Card header */
.qb-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--gray-100);
  background: var(--gray-50);
  flex-wrap: wrap;
}

[data-theme="dark"] .qb-card-header {
  background: rgba(255,255,255,0.02);
  border-bottom-color: rgba(255,255,255,0.06);
}

.qb-card.open .qb-card-header {
  border-bottom-color: rgba(22,163,74,0.15);
  background: rgba(22,163,74,0.03);
}

[data-theme="dark"] .qb-card.open .qb-card-header {
  background: rgba(74,222,128,0.04);
  border-bottom-color: rgba(74,222,128,0.1);
}

.qb-card-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.qb-year {
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--gray-900);
}

[data-theme="dark"] .qb-year { color: #f1f5f9; }

.qb-section {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--gray-500);
}

.qb-level {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--gray-400);
  background: var(--gray-100);
  padding: 3px 8px;
  border-radius: 100px;
}

[data-theme="dark"] .qb-level {
  background: rgba(255,255,255,0.08);
  color: #94a3b8;
}

.qb-marks {
  font-size: 0.75rem;
  font-weight: 700;
  color: #92400e;
  background: #fef3c7;
  padding: 3px 9px;
  border-radius: 100px;
}

[data-theme="dark"] .qb-marks {
  background: rgba(245,158,11,0.15);
  color: #fbbf24;
}

/* Toggle button */
.qb-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  background: var(--green-600);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font);
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  flex-shrink: 0;
}

.qb-toggle-btn:hover {
  background: var(--green-700);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(22,163,74,0.3);
}

.qb-card.open .qb-toggle-btn {
  background: var(--gray-600);
}

[data-theme="dark"] .qb-card.open .qb-toggle-btn {
  background: rgba(255,255,255,0.12);
}

.qb-toggle-icon { font-size: 0.95rem; }
.qb-toggle-icon.open { font-size: 0.8rem; }

/* Question text */
.qb-question-text {
  padding: 24px 24px 20px;
  font-size: 0.975rem;
  color: var(--gray-800);
  line-height: 1.75;
  white-space: pre-line;
}

[data-theme="dark"] .qb-question-text { color: #e2e8f0; }

.qb-question-text strong {
  font-weight: 700;
  color: var(--gray-900);
}

[data-theme="dark"] .qb-question-text strong { color: #f1f5f9; }

/* ── SCHEME REVEAL (animated) ── */
.qb-scheme-wrap {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.48s cubic-bezier(0.4, 0, 0.2, 1);
}

.qb-card.open .qb-scheme-wrap {
  max-height: 4000px;
}

.qb-scheme-inner {
  border-top: 1.5px solid rgba(22,163,74,0.15);
}

[data-theme="dark"] .qb-scheme-inner {
  border-top-color: rgba(74,222,128,0.1);
}

.qb-scheme-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 22px 10px;
  background: rgba(22,163,74,0.03);
}

[data-theme="dark"] .qb-scheme-header {
  background: rgba(74,222,128,0.03);
}

/* ── SHARED: marking points ── */
.msv-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.7px;
  padding: 4px 10px;
  border-radius: 100px;
  background: var(--green-100);
  color: var(--green-700);
}

[data-theme="dark"] .msv-badge {
  background: rgba(99,102,241,0.18);
  color: #a5b4fc;
}

.msv-badge-scheme {
  background: rgba(22,163,74,0.1);
  color: #166534;
}

[data-theme="dark"] .msv-badge-scheme {
  background: rgba(74,222,128,0.12);
  color: #4ade80;
}

.msv-score-total {
  font-size: 0.78rem;
  font-weight: 700;
  color: #166534;
}

[data-theme="dark"] .msv-score-total { color: #4ade80; }

.msv-points-wrap {
  padding: 16px 22px 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.msv-points-title {
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.7px;
  color: var(--gray-400);
  margin-bottom: 2px;
}

.msv-point {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  background: var(--gray-50);
  border: 1.5px solid var(--gray-100);
  border-left: 4px solid var(--point-color, #6366f1);
  animation: pointIn 0.3s ease both;
}

[data-theme="dark"] .msv-point {
  background: rgba(255,255,255,0.03);
  border-color: rgba(255,255,255,0.06);
  border-left-color: var(--point-color, #818cf8);
}

@keyframes pointIn {
  from { opacity: 0; transform: translateX(10px); }
  to   { opacity: 1; transform: translateX(0); }
}

.msv-point-num {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--point-color, #6366f1);
  color: white;
  font-size: 0.68rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 1px;
}

.msv-point-body { flex: 1; min-width: 0; }

.msv-point-text {
  font-size: 0.875rem;
  color: var(--gray-700);
  line-height: 1.6;
}

[data-theme="dark"] .msv-point-text { color: #cbd5e1; }

.msv-point-marks {
  display: inline-flex;
  align-items: center;
  margin-top: 5px;
  font-size: 0.7rem;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: 100px;
  background: color-mix(in srgb, var(--point-color, #6366f1) 12%, transparent);
  color: var(--point-color, #6366f1);
  border: 1px solid color-mix(in srgb, var(--point-color, #6366f1) 25%, transparent);
}

@supports not (background: color-mix(in srgb, red 10%, transparent)) {
  .msv-point-marks { background: rgba(99,102,241,0.1); color: #4f46e5; border-color: rgba(99,102,241,0.2); }
}

/* ── Full marks box ── */
.msv-fm-box {
  margin: 4px 22px 24px;
  background: #fffbeb;
  border: 1.5px solid #fde68a;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

[data-theme="dark"] .msv-fm-box {
  background: rgba(245,158,11,0.06);
  border-color: rgba(245,158,11,0.22);
}

.msv-fm-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: #fef3c7;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: #92400e;
  border-bottom: 1px solid #fde68a;
}

[data-theme="dark"] .msv-fm-header {
  background: rgba(245,158,11,0.1);
  border-bottom-color: rgba(245,158,11,0.18);
  color: #fbbf24;
}

.msv-fm-icon { font-size: 0.9rem; }

.msv-fm-list {
  list-style: none;
  padding: 12px 16px 14px;
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.msv-fm-item {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  font-size: 0.86rem;
  color: #78350f;
  line-height: 1.55;
}

[data-theme="dark"] .msv-fm-item { color: #fde68a; }

.msv-fm-check {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #d97706;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 0.6rem;
  font-weight: 900;
  margin-top: 1px;
}

[data-theme="dark"] .msv-fm-check { background: rgba(217,119,6,0.6); }

/* ── RESPONSIVE ── */
@media (max-width: 700px) {
  .qb-card-header { gap: 10px; }
  .qb-toggle-btn  { font-size: 0.8rem; padding: 8px 14px; }
  .qb-question-text { padding: 18px 16px 16px; font-size: 0.92rem; }
  .msv-points-wrap  { padding: 14px 14px 10px; }
  .msv-fm-box       { margin: 4px 14px 18px; }
  .msv-filter-row   { padding: 12px 14px; gap: 10px; }
}