/* ExamKit Public Stylesheet
   10Tracker — examkit.css
   Aesthetic: Clean editorial, India competitive-exam focused
   Font: IBM Plex Sans (technical/academic feel) + Rajdhani for headings
*/

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&family=Rajdhani:wght@500;600;700&display=swap');

/* =============================================
   CSS VARIABLES
   ============================================= */
:root {
  --ek-primary:    #1a56db;
  --ek-primary-d:  #1341b0;
  --ek-secondary:  #0e9f6e;
  --ek-danger:     #e02424;
  --ek-warn:       #ff8800;
  --ek-bg:         #f7f8fc;
  --ek-surface:    #ffffff;
  --ek-border:     #e4e7ef;
  --ek-text:       #1a1f36;
  --ek-text-muted: #6b7280;
  --ek-radius:     10px;
  --ek-radius-sm:  6px;
  --ek-shadow:     0 2px 12px rgba(30,50,120,0.07);
  --ek-shadow-lg:  0 8px 32px rgba(30,50,120,0.12);
  --ek-font:       'IBM Plex Sans', sans-serif;
  --ek-heading:    'Rajdhani', sans-serif;
  --ek-correct:    #0e9f6e;
  --ek-wrong:      #e02424;
  --ek-skipped:    #9ca3af;
  --ek-marked:     #7c3aed;
}

/* =============================================
   BASE
   ============================================= */
.examkit-wrap,
.ek-exam-list,
.ek-quiz-list,
.ek-quiz-container,
.ek-my-attempts {
  font-family: var(--ek-font);
  color: var(--ek-text);
  line-height: 1.6;
  box-sizing: border-box;
}

.examkit-wrap *,
.ek-exam-list *,
.ek-quiz-list *,
.ek-quiz-container *,
.ek-my-attempts * {
  box-sizing: border-box;
}

/* =============================================
   UTILITY
   ============================================= */
.ek-error {
  color: var(--ek-danger);
  padding: 12px 16px;
  background: #fef2f2;
  border-left: 4px solid var(--ek-danger);
  border-radius: var(--ek-radius-sm);
  font-size: 0.95rem;
}

.ek-login-prompt {
  padding: 32px;
  text-align: center;
  background: var(--ek-surface);
  border: 1px solid var(--ek-border);
  border-radius: var(--ek-radius);
}

.ek-login-prompt a {
  color: var(--ek-primary);
  font-weight: 600;
  text-decoration: none;
}

.ek-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.ek-badge-easy   { background: #d1fae5; color: #065f46; }
.ek-badge-medium { background: #fef3c7; color: #78350f; }
.ek-badge-hard   { background: #fee2e2; color: #7f1d1d; }

/* =============================================
   EXAM LIST
   ============================================= */
.ek-exam-list {
  padding: 24px 0;
}

.ek-exam-list__heading {
  font-family: var(--ek-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--ek-text);
  margin: 0 0 24px;
  letter-spacing: -0.02em;
}

.ek-exam-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.ek-exam-card {
  background: var(--ek-surface);
  border: 1px solid var(--ek-border);
  border-radius: var(--ek-radius);
  padding: 24px;
  text-decoration: none;
  color: var(--ek-text);
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: var(--ek-shadow);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
  position: relative;
  overflow: hidden;
}

.ek-exam-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--ek-primary), #6366f1);
}

.ek-exam-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--ek-shadow-lg);
  border-color: var(--ek-primary);
  text-decoration: none;
  color: var(--ek-text);
}

.ek-exam-card__title {
  font-family: var(--ek-heading);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.3;
}

.ek-exam-card__excerpt {
  font-size: 0.88rem;
  color: var(--ek-text-muted);
  line-height: 1.5;
}

.ek-exam-card__meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: auto;
}

.ek-exam-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ek-primary);
  margin-top: 4px;
}

/* =============================================
   QUIZ LIST
   ============================================= */
.ek-quiz-list {
  padding: 20px 0;
}

.ek-quiz-list__heading {
  font-family: var(--ek-heading);
  font-size: 1.6rem;
  font-weight: 700;
  margin: 0 0 20px;
  letter-spacing: -0.02em;
}

.ek-quiz-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--ek-surface);
  border: 1px solid var(--ek-border);
  border-radius: var(--ek-radius);
  overflow: hidden;
  box-shadow: var(--ek-shadow);
}

.ek-quiz-table th {
  background: #f0f4ff;
  padding: 12px 16px;
  text-align: left;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ek-text-muted);
  border-bottom: 1px solid var(--ek-border);
}

.ek-quiz-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--ek-border);
  font-size: 0.92rem;
  vertical-align: middle;
}

.ek-quiz-table tr:last-child td {
  border-bottom: none;
}

.ek-quiz-table tr:hover td {
  background: #f8faff;
}

.ek-quiz-table__title {
  font-weight: 600;
  color: var(--ek-text);
  text-decoration: none;
}

.ek-quiz-table__title:hover {
  color: var(--ek-primary);
}

.ek-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 20px;
  border-radius: var(--ek-radius-sm);
  font-family: var(--ek-font);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.15s ease;
  white-space: nowrap;
  gap: 6px;
}

.ek-btn-primary {
  background: var(--ek-primary);
  color: #fff;
}

.ek-btn-primary:hover {
  background: var(--ek-primary-d);
  color: #fff;
  text-decoration: none;
}

.ek-btn-outline {
  background: transparent;
  color: var(--ek-primary);
  border: 1.5px solid var(--ek-primary);
}

.ek-btn-outline:hover {
  background: var(--ek-primary);
  color: #fff;
}

.ek-btn-danger {
  background: var(--ek-danger);
  color: #fff;
}

.ek-btn-danger:hover {
  background: #b91c1c;
  color: #fff;
}

.ek-btn-sm {
  padding: 5px 14px;
  font-size: 0.82rem;
}

.ek-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* =============================================
   QUIZ ATTEMPT CONTAINER
   ============================================= */
.ek-quiz-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 16px 48px;
}

/* ---- Header ---- */
.ek-quiz-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: var(--ek-surface);
  border: 1px solid var(--ek-border);
  border-radius: var(--ek-radius);
  margin-bottom: 20px;
  box-shadow: var(--ek-shadow);
  flex-wrap: wrap;
  gap: 12px;
}

.ek-quiz-title {
  font-family: var(--ek-heading);
  font-size: 1.4rem;
  font-weight: 700;
  margin: 0;
}

.ek-quiz-meta-bar {
  display: flex;
  gap: 20px;
  align-items: center;
  flex-wrap: wrap;
}

.ek-meta-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.ek-meta-item__label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ek-text-muted);
  font-weight: 600;
}

.ek-meta-item__value {
  font-size: 1.1rem;
  font-weight: 700;
  font-family: var(--ek-heading);
}

/* Timer */
.ek-timer {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: #f0f4ff;
  border-radius: var(--ek-radius-sm);
  font-family: 'IBM Plex Mono', monospace, var(--ek-font);
}

.ek-timer__value {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--ek-primary);
  letter-spacing: 0.02em;
}

.ek-timer--warning .ek-timer__value {
  color: var(--ek-warn);
  animation: ek-pulse 1s infinite;
}

.ek-timer--danger .ek-timer__value {
  color: var(--ek-danger);
  animation: ek-pulse 0.5s infinite;
}

@keyframes ek-pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.5; }
}

/* ---- Main layout ---- */
.ek-quiz-layout {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 20px;
  align-items: start;
}

@media (max-width: 768px) {
  .ek-quiz-layout {
    grid-template-columns: 1fr;
  }
  .ek-quiz-palette {
    order: -1;
  }
}

/* ---- Question Panel ---- */
.ek-question-panel {
  background: var(--ek-surface);
  border: 1px solid var(--ek-border);
  border-radius: var(--ek-radius);
  box-shadow: var(--ek-shadow);
  overflow: hidden;
}

.ek-question-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: #f0f4ff;
  border-bottom: 1px solid var(--ek-border);
}

.ek-question-number {
  font-family: var(--ek-heading);
  font-size: 1.1rem;
  font-weight: 700;
}

.ek-question-body {
  padding: 24px 20px;
}

.ek-direction-html {
  padding: 14px 16px;
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: var(--ek-radius-sm);
  margin-bottom: 16px;
  font-size: 0.92rem;
  color: #78350f;
}

.ek-question-text {
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 24px;
  color: var(--ek-text);
}

.ek-question-text table {
  border-collapse: collapse;
  margin: 8px 0;
  font-size: 0.9rem;
}

.ek-question-text table td,
.ek-question-text table th {
  padding: 4px 10px;
  border: 1px solid var(--ek-border);
  text-align: center;
}

/* Options */
.ek-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.ek-option {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  border: 2px solid var(--ek-border);
  border-radius: var(--ek-radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
  background: var(--ek-surface);
}

.ek-option:hover {
  border-color: var(--ek-primary);
  background: #f0f4ff;
}

.ek-option.is-selected {
  border-color: var(--ek-primary);
  background: #eff6ff;
}

.ek-option.is-selected .ek-option__key {
  background: var(--ek-primary);
  color: #fff;
  border-color: var(--ek-primary);
}

/* Review mode states */
.ek-option.is-correct {
  border-color: var(--ek-correct);
  background: #f0fdf4;
}

.ek-option.is-correct .ek-option__key {
  background: var(--ek-correct);
  color: #fff;
  border-color: var(--ek-correct);
}

.ek-option.is-wrong {
  border-color: var(--ek-wrong);
  background: #fef2f2;
}

.ek-option.is-wrong .ek-option__key {
  background: var(--ek-wrong);
  color: #fff;
  border-color: var(--ek-wrong);
}

.ek-option__key {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid var(--ek-border);
  font-weight: 700;
  font-size: 0.9rem;
  flex-shrink: 0;
  transition: all 0.15s ease;
}

.ek-option__text {
  flex: 1;
  font-size: 0.95rem;
  line-height: 1.5;
  padding-top: 4px;
}

.ek-option__text table {
  border-collapse: collapse;
  font-size: 0.88rem;
}

.ek-option__text table td {
  padding: 2px 8px;
  border: 1px solid var(--ek-border);
}

/* Navigation */
.ek-question-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-top: 1px solid var(--ek-border);
  flex-wrap: wrap;
  gap: 10px;
}

.ek-mark-review {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--ek-radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  border: 1.5px solid var(--ek-marked);
  color: var(--ek-marked);
  background: transparent;
  transition: all 0.15s;
}

.ek-mark-review.is-marked,
.ek-mark-review:hover {
  background: var(--ek-marked);
  color: #fff;
}

/* Solution box */
.ek-solution-box {
  margin: 20px;
  padding: 16px;
  background: #f0fdf4;
  border: 1px solid #a7f3d0;
  border-radius: var(--ek-radius-sm);
  display: none;
}

.ek-solution-box.is-visible {
  display: block;
}

.ek-solution-box__title {
  font-weight: 700;
  font-size: 0.9rem;
  color: #065f46;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.ek-solution-box__content {
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--ek-text);
}

.ek-solution-box__content table {
  border-collapse: collapse;
  margin: 6px 0;
  font-size: 0.88rem;
}

.ek-solution-box__content table td {
  padding: 4px 10px;
  border: 1px solid #6ee7b7;
  text-align: center;
}

/* ---- Question Palette ---- */
.ek-quiz-palette {
  background: var(--ek-surface);
  border: 1px solid var(--ek-border);
  border-radius: var(--ek-radius);
  box-shadow: var(--ek-shadow);
  position: sticky;
  top: 20px;
}

.ek-palette-header {
  padding: 14px 16px;
  border-bottom: 1px solid var(--ek-border);
  font-family: var(--ek-heading);
  font-weight: 700;
  font-size: 1rem;
  background: #f0f4ff;
  border-radius: var(--ek-radius) var(--ek-radius) 0 0;
}

.ek-palette-legend {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--ek-border);
}

.ek-legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--ek-text-muted);
}

.ek-legend-dot {
  width: 14px;
  height: 14px;
  border-radius: 3px;
  flex-shrink: 0;
}

.ek-legend-dot--unattempted { background: #e5e7eb; border: 1px solid #d1d5db; }
.ek-legend-dot--attempted   { background: var(--ek-primary); }
.ek-legend-dot--marked      { background: var(--ek-marked); }
.ek-legend-dot--current     { background: var(--ek-secondary); }

.ek-palette-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
  padding: 14px 16px;
  max-height: 340px;
  overflow-y: auto;
}

.ek-palette-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--ek-radius-sm);
  border: 1px solid #d1d5db;
  background: #f9fafb;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.12s ease;
  color: var(--ek-text);
}

.ek-palette-btn:hover {
  border-color: var(--ek-primary);
  color: var(--ek-primary);
}

.ek-palette-btn.is-current {
  background: var(--ek-secondary);
  border-color: var(--ek-secondary);
  color: #fff;
}

.ek-palette-btn.is-attempted {
  background: var(--ek-primary);
  border-color: var(--ek-primary);
  color: #fff;
}

.ek-palette-btn.is-marked {
  background: var(--ek-marked);
  border-color: var(--ek-marked);
  color: #fff;
}

.ek-palette-btn.is-attempted.is-marked {
  background: linear-gradient(135deg, var(--ek-primary) 50%, var(--ek-marked) 50%);
  border-color: var(--ek-marked);
  color: #fff;
}

.ek-palette-summary {
  padding: 12px 16px;
  border-top: 1px solid var(--ek-border);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.ek-summary-item {
  text-align: center;
  padding: 8px;
  background: var(--ek-bg);
  border-radius: var(--ek-radius-sm);
}

.ek-summary-item__count {
  font-size: 1.3rem;
  font-weight: 700;
  font-family: var(--ek-heading);
  display: block;
}

.ek-summary-item__label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ek-text-muted);
  font-weight: 600;
}

.ek-palette-submit {
  padding: 14px 16px;
  border-top: 1px solid var(--ek-border);
}

.ek-palette-submit .ek-btn {
  width: 100%;
}

/* =============================================
   START SCREEN
   ============================================= */
.ek-start-screen {
  background: var(--ek-surface);
  border: 1px solid var(--ek-border);
  border-radius: var(--ek-radius);
  box-shadow: var(--ek-shadow);
  padding: 48px 40px;
  text-align: center;
  max-width: 560px;
  margin: 0 auto;
}

.ek-start-screen__icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

.ek-start-screen__title {
  font-family: var(--ek-heading);
  font-size: 2rem;
  font-weight: 700;
  margin: 0 0 12px;
  letter-spacing: -0.02em;
}

.ek-start-screen__desc {
  color: var(--ek-text-muted);
  font-size: 0.95rem;
  margin-bottom: 28px;
}

.ek-start-info {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.ek-start-info__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.ek-start-info__value {
  font-family: var(--ek-heading);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--ek-primary);
}

.ek-start-info__label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ek-text-muted);
  font-weight: 600;
}

.ek-start-rules {
  background: #f0f4ff;
  border-radius: var(--ek-radius-sm);
  padding: 16px;
  text-align: left;
  margin-bottom: 28px;
  font-size: 0.88rem;
  color: var(--ek-text-muted);
}

.ek-start-rules li {
  margin-bottom: 6px;
}

/* =============================================
   RESULT SCREEN
   ============================================= */
.ek-result-screen {
  max-width: 760px;
  margin: 0 auto;
}

.ek-result-scorecard {
  background: linear-gradient(135deg, #1a56db, #4f46e5);
  color: #fff;
  border-radius: var(--ek-radius);
  padding: 40px 32px;
  text-align: center;
  margin-bottom: 24px;
  box-shadow: var(--ek-shadow-lg);
}

.ek-result-scorecard__title {
  font-family: var(--ek-heading);
  font-size: 1.2rem;
  font-weight: 600;
  opacity: 0.85;
  margin-bottom: 8px;
}

.ek-result-scorecard__score {
  font-family: var(--ek-heading);
  font-size: 4rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
}

.ek-result-scorecard__total {
  font-size: 1.3rem;
  opacity: 0.7;
}

.ek-result-scorecard__pct {
  font-size: 1.1rem;
  margin-top: 8px;
  opacity: 0.85;
}

.ek-result-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

@media (max-width: 600px) {
  .ek-result-stats { grid-template-columns: 1fr; }
}

.ek-stat-card {
  background: var(--ek-surface);
  border: 1px solid var(--ek-border);
  border-radius: var(--ek-radius);
  padding: 20px 16px;
  text-align: center;
  box-shadow: var(--ek-shadow);
}

.ek-stat-card__value {
  font-family: var(--ek-heading);
  font-size: 2rem;
  font-weight: 700;
  display: block;
}

.ek-stat-card__label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ek-text-muted);
  font-weight: 600;
}

.ek-stat-card--correct .ek-stat-card__value { color: var(--ek-correct); }
.ek-stat-card--wrong   .ek-stat-card__value { color: var(--ek-wrong); }
.ek-stat-card--skipped .ek-stat-card__value { color: var(--ek-skipped); }

/* Review answers in result */
.ek-review-title {
  font-family: var(--ek-heading);
  font-size: 1.4rem;
  font-weight: 700;
  margin: 0 0 16px;
}

.ek-review-item {
  background: var(--ek-surface);
  border: 1px solid var(--ek-border);
  border-radius: var(--ek-radius);
  margin-bottom: 16px;
  overflow: hidden;
  box-shadow: var(--ek-shadow);
}

.ek-review-item__header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--ek-border);
  background: var(--ek-bg);
}

.ek-review-item__status {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.status-correct  { background: var(--ek-correct); }
.status-wrong    { background: var(--ek-wrong); }
.status-skipped  { background: var(--ek-skipped); }

.ek-review-item__body {
  padding: 16px;
}

/* =============================================
   MY ATTEMPTS PAGE
   ============================================= */
.ek-my-attempts {
  padding: 24px 0;
}

.ek-my-attempts__heading {
  font-family: var(--ek-heading);
  font-size: 2rem;
  font-weight: 700;
  margin: 0 0 24px;
  letter-spacing: -0.02em;
}

.ek-attempts-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--ek-surface);
  border: 1px solid var(--ek-border);
  border-radius: var(--ek-radius);
  overflow: hidden;
  box-shadow: var(--ek-shadow);
}

.ek-attempts-table th {
  background: #f0f4ff;
  padding: 12px 16px;
  text-align: left;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ek-text-muted);
  border-bottom: 1px solid var(--ek-border);
}

.ek-attempts-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--ek-border);
  font-size: 0.92rem;
}

.ek-attempts-table tr:last-child td { border-bottom: none; }
.ek-attempts-table tr:hover td { background: #f8faff; }

.ek-score-pill {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
  background: #dbeafe;
  color: #1e40af;
}

.ek-status-pill {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.ek-status-pill--completed   { background: #d1fae5; color: #065f46; }
.ek-status-pill--in_progress { background: #fef3c7; color: #78350f; }

/* =============================================
   MODAL (submit confirmation)
   ============================================= */
.ek-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.55);
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}

.ek-modal-overlay.is-open {
  opacity: 1;
  pointer-events: all;
}

.ek-modal {
  background: var(--ek-surface);
  border-radius: var(--ek-radius);
  box-shadow: var(--ek-shadow-lg);
  padding: 32px;
  max-width: 420px;
  width: 90%;
  transform: translateY(20px);
  transition: transform 0.2s;
}

.ek-modal-overlay.is-open .ek-modal {
  transform: translateY(0);
}

.ek-modal__title {
  font-family: var(--ek-heading);
  font-size: 1.4rem;
  font-weight: 700;
  margin: 0 0 12px;
}

.ek-modal__body {
  color: var(--ek-text-muted);
  font-size: 0.92rem;
  margin-bottom: 24px;
  line-height: 1.6;
}

.ek-modal__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 20px;
}

.ek-modal__stat {
  text-align: center;
  padding: 10px;
  border-radius: var(--ek-radius-sm);
  background: var(--ek-bg);
}

.ek-modal__stat-value {
  font-family: var(--ek-heading);
  font-size: 1.5rem;
  font-weight: 700;
  display: block;
}

.ek-modal__stat-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  color: var(--ek-text-muted);
  font-weight: 600;
  letter-spacing: 0.04em;
}

.ek-modal__actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

/* =============================================
   LOADING / SPINNER
   ============================================= */
.ek-spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,0.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: ek-spin 0.7s linear infinite;
}

.ek-spinner--dark {
  border-color: rgba(26,86,219,0.2);
  border-top-color: var(--ek-primary);
}

@keyframes ek-spin {
  to { transform: rotate(360deg); }
}

.ek-loading {
  text-align: center;
  padding: 48px;
  color: var(--ek-text-muted);
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 600px) {
  .ek-quiz-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .ek-quiz-meta-bar {
    gap: 12px;
  }

  .ek-question-body {
    padding: 16px;
  }

  .ek-start-screen {
    padding: 28px 20px;
  }

  .ek-start-info {
    gap: 20px;
  }

  .ek-exam-grid {
    grid-template-columns: 1fr;
  }

  .ek-quiz-table,
  .ek-attempts-table {
    font-size: 0.82rem;
  }

  .ek-quiz-table th,
  .ek-quiz-table td,
  .ek-attempts-table th,
  .ek-attempts-table td {
    padding: 10px 10px;
  }
}

/* =====================================================
   ExamKit v2 — New Feature Styles
   ===================================================== */

/* Result filter tabs */
.ek-result-filters {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin: 0 0 16px;
    padding: 12px 0;
    border-bottom: 2px solid var(--ek-border);
}
.ek-result-filter-btn {
    padding: 6px 16px;
    border: 1px solid var(--ek-border);
    border-radius: 20px;
    background: #fff;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: background .15s, border-color .15s;
}
.ek-result-filter-btn:hover {
    background: #f1f5f9;
}
.ek-result-filter-btn.is-active {
    background: var(--ek-primary);
    border-color: var(--ek-primary);
    color: #fff !important;
}

/* Skipped question highlight in result */
.ek-review-item[data-status="skipped"] .ek-review-item__header {
    background: #fffbeb;
    border-left: 3px solid #f59e0b;
}

/* Section performance table */
.ek-section-table th,
.ek-section-table td {
    padding: 8px 12px;
    border-bottom: 1px solid #f1f5f9;
    text-align: left;
}
.ek-section-table tr:last-child td { border-bottom: none; }

/* Keyboard hint in start screen */
.ek-start-rules li strong { color: var(--ek-primary); }

/* Subject chip on question */
.ek-question-header { flex-wrap: wrap; gap: 6px; }