/* ============================================================
   UPSC Prelims Assessment Engine
   ============================================================ */

.prelims-setup,
.prelims-test,
.prelims-result {
  max-width: 900px;
  margin: 0 auto;
  padding: 24px 20px 48px;
  animation: fadeInUp var(--duration-slow) var(--ease-out) both;
}

.prelims-setup__header {
  margin-bottom: 28px;
}

.prelims-setup__back {
  padding: 8px 12px;
  margin-bottom: 16px;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
}

.prelims-setup__badge {
  display: inline-block;
  padding: 4px 10px;
  margin-bottom: 8px;
  font-size: 10px;
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: var(--gradient-gold);
  color: var(--color-royal-deep);
  border-radius: var(--radius-full);
}

.prelims-setup__title {
  font-family: var(--font-display);
  font-size: var(--font-size-2xl);
  margin: 0 0 6px;
}

.prelims-setup__sub {
  color: var(--color-text-secondary);
  margin: 0 0 16px;
}

.prelims-setup__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.prelims-tab {
  padding: 8px 14px;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  cursor: pointer;
}

.prelims-tab.is-active {
  background: var(--color-accent-soft);
  border-color: var(--color-border-gold);
  color: var(--color-accent);
  font-weight: var(--font-weight-semibold);
}

.prelims-section {
  margin-bottom: 24px;
}

.prelims-section h2 {
  font-family: var(--font-display);
  font-size: var(--font-size-base);
  margin: 0 0 12px;
}

.prelims-section--grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}

.prelims-section label {
  display: block;
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  margin-bottom: 4px;
}

.prelims-select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-elevated);
  font-size: var(--font-size-sm);
}

.prelims-type-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px;
}

.prelims-type-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px;
  text-align: left;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: border-color var(--duration-fast), box-shadow var(--duration-fast);
}

.prelims-type-card strong {
  font-size: var(--font-size-sm);
}

.prelims-type-card span {
  font-size: 11px;
  color: var(--color-text-tertiary);
}

.prelims-type-card.is-active,
.prelims-type-card:hover {
  border-color: var(--color-border-gold);
  box-shadow: var(--shadow-gold);
}

.prelims-topic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 8px;
  max-height: 200px;
  overflow-y: auto;
}

.prelims-topic-check {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  font-size: var(--font-size-sm);
  background: var(--color-bg-subtle);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.prelims-start-btn {
  width: 100%;
  margin-top: 8px;
}

.prelims-hint {
  font-weight: normal;
  color: var(--color-text-tertiary);
  font-size: var(--font-size-xs);
}

.prelims-empty {
  color: var(--color-text-tertiary);
  font-style: italic;
  font-size: var(--font-size-sm);
}

/* ─── Test UI ─── */
.prelims-test__header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}

.prelims-test__exit {
  padding: 8px 12px;
  font-size: var(--font-size-sm);
  color: #c0392b;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
}

.prelims-test__progress-wrap {
  flex: 1;
}

.prelims-test__progress-wrap span {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
}

.prelims-test__progress {
  height: 6px;
  margin-top: 6px;
  background: var(--color-bg-subtle);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.prelims-test__progress div {
  height: 100%;
  background: var(--gradient-gold);
  transition: width var(--duration-normal) var(--ease-out);
}

.prelims-test__meta {
  font-size: 11px;
  color: var(--color-text-tertiary);
  white-space: nowrap;
}

.prelims-question {
  padding: 24px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
}

.prelims-question__text {
  font-size: var(--font-size-lg);
  line-height: 1.55;
  margin: 0 0 20px;
}

.prelims-statements {
  margin: 0 0 20px 20px;
  font-size: var(--font-size-base);
  line-height: 1.6;
}

.prelims-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.prelims-option {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  text-align: left;
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: border-color var(--duration-fast), background var(--duration-fast);
}

.prelims-option:hover {
  border-color: var(--color-border-gold);
  background: var(--color-accent-soft);
}

.prelims-option__key {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-bold);
  background: var(--color-bg-elevated);
  border-radius: var(--radius-sm);
}

.prelims-option--correct {
  border-color: #27ae60;
  background: rgba(39, 174, 96, 0.1);
}

.prelims-option--wrong {
  border-color: #c0392b;
  background: rgba(192, 57, 43, 0.08);
}

.prelims-explanation {
  margin-top: 20px;
  padding: 16px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.prelims-explanation--ok {
  background: rgba(39, 174, 96, 0.08);
  border-color: rgba(39, 174, 96, 0.3);
}

.prelims-explanation--wrong {
  background: rgba(192, 57, 43, 0.06);
  border-color: rgba(192, 57, 43, 0.2);
}

.prelims-explanation__concept {
  font-size: var(--font-size-xs);
  color: var(--color-accent);
  margin-top: 8px;
}

.prelims-pyq {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
}

.prelims-pyq h4 {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0 0 8px;
  color: var(--color-gold-dark);
}

.prelims-pyq__item {
  padding: 8px 0;
  font-size: var(--font-size-sm);
}

.prelims-pyq__year {
  display: inline-block;
  padding: 2px 8px;
  margin-right: 8px;
  font-size: 10px;
  font-weight: var(--font-weight-bold);
  background: var(--gradient-gold);
  color: var(--color-royal-deep);
  border-radius: var(--radius-full);
}

.prelims-question__footer {
  margin-top: 16px;
  text-align: right;
}

.prelims-skip-btn {
  padding: 8px 16px;
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
}

/* ─── Results ─── */
.prelims-result__header {
  text-align: center;
  margin-bottom: 24px;
}

.prelims-result__header h1 {
  font-family: var(--font-display);
  margin: 0 0 4px;
}

.prelims-result__scores {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
  margin-bottom: 24px;
}

.prelims-result__score {
  text-align: center;
  padding: 16px 10px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.prelims-result__score--main {
  border-color: var(--color-border-gold);
  box-shadow: var(--shadow-gold);
}

.prelims-result__val {
  display: block;
  font-family: var(--font-display);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-accent);
}

.prelims-result__summary {
  text-align: center;
  color: var(--color-text-secondary);
  margin-bottom: 20px;
  line-height: 1.55;
}

.prelims-result__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.prelims-result__grid section {
  padding: 16px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.prelims-result__grid h3 {
  font-size: var(--font-size-sm);
  margin: 0 0 10px;
}

.prelims-result__grid ul {
  margin: 0;
  padding-left: 18px;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.prelims-rev-list {
  list-style: none;
  padding: 0;
}

.prelims-rev {
  padding: 8px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: var(--font-size-sm);
}

.prelims-rev--immediate { border-left: 3px solid #c0392b; padding-left: 10px; }
.prelims-rev--tomorrow { border-left: 3px solid #d68910; padding-left: 10px; }
.prelims-rev--this-week { border-left: 3px solid var(--color-accent); padding-left: 10px; }

.prelims-result__concepts {
  margin-bottom: 24px;
  overflow-x: auto;
}

.prelims-result__concepts table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}

.prelims-result__concepts th,
.prelims-result__concepts td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.prelims-result__encourage {
  text-align: center;
  color: var(--color-accent);
  font-weight: var(--font-weight-medium);
  margin-bottom: 20px;
}

.prelims-result__footer {
  text-align: center;
}

/* ─── Mastery badges ─── */
.prelims-mastery {
  display: inline-block;
  padding: 2px 8px;
  font-size: 11px;
  font-weight: var(--font-weight-bold);
  border-radius: var(--radius-full);
}

.prelims-mastery--critical { background: rgba(192, 57, 43, 0.15); color: #c0392b; }
.prelims-mastery--weak { background: rgba(214, 137, 16, 0.15); color: #d68910; }
.prelims-mastery--learning { background: var(--color-accent-soft); color: var(--color-accent); }
.prelims-mastery--strong { background: rgba(39, 174, 96, 0.12); color: #27ae60; }
.prelims-mastery--mastered { background: var(--gradient-gold); color: var(--color-royal-deep); }

/* ─── Dashboard ─── */
.prelims-dashboard {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.prelims-dashboard h2 {
  font-family: var(--font-display);
  margin: 0 0 16px;
}

.prelims-dash-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}

.prelims-dash-stat {
  text-align: center;
  padding: 16px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.prelims-dash-stat span {
  display: block;
  font-family: var(--font-display);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-accent);
}

.prelims-dash-stat label {
  font-size: 10px;
  color: var(--color-text-tertiary);
  text-transform: uppercase;
}

.prelims-dash-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.prelims-dash-grid section {
  padding: 16px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.prelims-dash-grid h3 {
  font-size: var(--font-size-sm);
  margin: 0 0 10px;
}

.prelims-dash-grid ul {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: var(--font-size-sm);
}

.prelims-dash-grid li {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  border-bottom: 1px solid var(--color-border);
}

.prelims-trend-chart {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 80px;
}

.prelims-trend-bar {
  flex: 1;
  height: var(--h, 20%);
  min-height: 4px;
  background: var(--gradient-gold);
  border-radius: 2px 2px 0 0;
}

/* ─── Topic lists ─── */
.prelims-topic-list {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.prelims-topic-list h2 {
  font-family: var(--font-display);
  margin: 0 0 16px;
}

.prelims-topic-card {
  padding: 16px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.prelims-topic-card--weak { border-left: 3px solid #c0392b; }
.prelims-topic-card--strong { border-left: 3px solid #27ae60; }

.prelims-topic-card header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.prelims-topic-card h3 {
  font-size: var(--font-size-sm);
  margin: 0;
}

.prelims-topic-card__meta {
  font-size: 11px;
  color: var(--color-text-tertiary);
  margin: 4px 0 8px;
}

.prelims-topic-card__stats {
  display: flex;
  gap: 12px;
  font-size: 11px;
  color: var(--color-text-secondary);
}

.prelims-topic-card__mistake {
  font-size: 10px;
  color: #c0392b;
  margin: 8px 0;
}

.workspace-card--prelims .workspace-card__icon {
  background: var(--gradient-gold);
  color: var(--color-royal-deep);
  border: none;
}

@media (max-width: 768px) {
  .prelims-result__scores,
  .prelims-dash-stats { grid-template-columns: repeat(2, 1fr); }
  .prelims-result__grid,
  .prelims-dash-grid { grid-template-columns: 1fr; }
}