/* ── EXAM PAGE STYLES ── */

/* NAV ACTIVE */
.nav-active {
  color: var(--primary) !important;
  font-weight: 600 !important;
}

/* ── INTRO ── */
.exam-intro {
  padding: 120px 0 80px;
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--bg) 60%);
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.intro-card {
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
}

.intro-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(45,106,90,.1);
  color: var(--primary);
  border-radius: 100px;
  font-size: .82rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.intro-card h1 {
  font-size: 2.8rem;
  font-weight: 800;
  letter-spacing: -.03em;
  margin-bottom: 16px;
}

.intro-card > p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 40px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.intro-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-bottom: 40px;
}

.intro-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.intro-stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
}

.intro-stat-label {
  font-size: .85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.intro-sections {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 40px;
  text-align: left;
}

.intro-section-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.intro-section-card h3 {
  font-size: .88rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.intro-section-items {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.intro-section-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .92rem;
  font-weight: 500;
}

.intro-section-item span:last-child {
  margin-left: auto;
  font-size: .82rem;
  color: var(--text-secondary);
}

.intro-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.dot-turkce { background: #3b82f6; }
.dot-matematik { background: #8b5cf6; }
.dot-tarih { background: #ef4444; }
.dot-cografya { background: #10b981; }
.dot-vatandaslik { background: #f59e0b; }
.dot-guncel { background: #06b6d4; }

.intro-count {
  font-variant-numeric: tabular-nums;
}

.btn-start {
  font-size: 1.1rem;
  padding: 16px 48px;
  gap: 12px;
}

/* ── TEST SELECTOR ── */
.test-selector {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 32px;
}

.test-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 16px 32px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  cursor: pointer;
  font-family: inherit;
  transition: all var(--transition);
}

.test-option:hover {
  border-color: var(--primary);
}

.test-option.active {
  border-color: var(--primary);
  background: var(--primary-light);
}

.test-option-number {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
}

.test-option-desc {
  font-size: .78rem;
  color: var(--text-secondary);
}

.test-option.active .test-option-number {
  color: var(--primary);
}

/* ── QUESTION IMAGE ── */
.question-image {
  margin: 16px 0 24px;
  text-align: center;
  background: #f5f8f6;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.question-image img,
.question-image object {
  max-width: 100%;
  max-height: 320px;
  height: auto;
}

/* ── EXAM TOPBAR ── */
.exam-topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.exam-topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.topbar-section {
  font-weight: 700;
  font-size: .92rem;
  color: var(--primary);
}

.topbar-question {
  font-size: .85rem;
  color: var(--text-secondary);
}

.topbar-center {
  display: flex;
  align-items: center;
}

.topbar-timer {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.1rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--text);
}

.topbar-timer.warning { color: #dc2626; }
.topbar-timer.warning svg { stroke: #dc2626; }

.topbar-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.topbar-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  font-size: .85rem;
  font-weight: 500;
  color: var(--text-secondary);
  font-family: inherit;
  transition: all var(--transition);
}

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

.topbar-btn-finish {
  background: var(--primary);
  color: #fff !important;
  border-color: var(--primary);
  font-weight: 600;
}

.topbar-btn-finish:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
}

.review-mode-badge {
  display: inline-flex;
  padding: 4px 14px;
  background: #fef3c7;
  color: #92400e;
  border-radius: 100px;
  font-size: .82rem;
  font-weight: 600;
}

/* ── PROGRESS BAR ── */
.exam-progress-wrap {
  position: fixed;
  top: 56px;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--border);
  z-index: 99;
}

.exam-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), #4a9a87);
  transition: width .3s ease;
  border-radius: 0 3px 3px 0;
}

/* ── QUESTION AREA ── */
.exam-main {
  padding: 80px 0 40px;
  min-height: calc(100vh - 120px);
}

.question-card {
  max-width: 760px;
  margin: 0 auto;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px 40px;
  box-shadow: 0 1px 3px rgba(0,0,0,.04);
}

.question-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}

.question-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 100px;
  font-size: .78rem;
  font-weight: 600;
  background: var(--primary-light);
  color: var(--primary);
}

.question-number {
  font-size: .88rem;
  font-weight: 600;
  color: var(--text);
}

.question-difficulty {
  margin-left: auto;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: .72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .04em;
}

.diff-kolay { background: #dcfce7; color: #15803d; }
.diff-orta { background: #fef3c7; color: #b45309; }
.diff-zor { background: #fee2e2; color: #dc2626; }

.question-text {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--text);
  margin-bottom: 28px;
  white-space: pre-line;
}

/* ── OPTIONS ── */
.options-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.option-btn {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 20px;
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  font-family: inherit;
  font-size: .95rem;
  line-height: 1.55;
  color: var(--text);
  text-align: left;
  transition: all var(--transition);
  width: 100%;
}

.option-btn:hover {
  border-color: var(--primary);
  background: var(--primary-light);
}

.option-btn.selected {
  border-color: var(--primary);
  background: var(--primary-light);
  font-weight: 500;
}

.option-btn.selected .option-letter {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.option-btn.correct {
  border-color: #16a34a;
  background: #f0fdf4;
}

.option-btn.correct .option-letter {
  background: #16a34a;
  color: #fff;
  border-color: #16a34a;
}

.option-btn.wrong {
  border-color: #dc2626;
  background: #fef2f2;
}

.option-btn.wrong .option-letter {
  background: #dc2626;
  color: #fff;
  border-color: #dc2626;
}

.option-btn.disabled {
  cursor: default;
  pointer-events: none;
}

.option-letter {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--border);
  border-radius: 8px;
  font-size: .85rem;
  font-weight: 700;
  color: var(--text-secondary);
  transition: all var(--transition);
}

.option-text {
  padding-top: 4px;
}

/* ── QUESTION NAV ── */
.question-nav {
  max-width: 760px;
  margin: 24px auto 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.btn-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  font-family: inherit;
  font-size: .88rem;
  font-weight: 600;
  color: var(--text);
  transition: all var(--transition);
}

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

.btn-nav:disabled {
  opacity: .4;
  cursor: not-allowed;
}

.question-dots {
  display: flex;
  gap: 4px;
  overflow: hidden;
  max-width: 400px;
}

.q-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border);
  flex-shrink: 0;
  cursor: pointer;
  transition: all var(--transition);
}

.q-dot.answered { background: var(--primary); }
.q-dot.current { background: var(--accent); transform: scale(1.4); }

/* ── GRID OVERLAY ── */
.grid-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0,0,0,.4);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
}

.grid-panel {
  background: var(--bg);
  border-radius: 16px;
  width: 90%;
  max-width: 640px;
  max-height: 80vh;
  overflow-y: auto;
  padding: 32px;
  box-shadow: 0 20px 60px rgba(0,0,0,.2);
}

.grid-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.grid-header h3 {
  font-size: 1.2rem;
  font-weight: 700;
}

.grid-close {
  background: none;
  border: none;
  font-size: 1.6rem;
  cursor: pointer;
  color: var(--text-secondary);
  padding: 4px 8px;
  line-height: 1;
}

.grid-section-label {
  font-size: .82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--text-secondary);
  margin-bottom: 10px;
  margin-top: 20px;
}

.grid-section-label:first-child { margin-top: 0; }

.grid-items {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(42px, 1fr));
  gap: 6px;
  margin-bottom: 16px;
}

.grid-item {
  width: 100%;
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: .78rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  background: var(--bg);
  color: var(--text-secondary);
}

.grid-item:hover { border-color: var(--primary); }
.grid-item.answered { background: var(--primary); color: #fff; border-color: var(--primary); }
.grid-item.current { border-color: var(--accent); border-width: 2.5px; color: var(--accent); }
.grid-item.correct-item { background: #16a34a; color: #fff; border-color: #16a34a; }
.grid-item.wrong-item { background: #dc2626; color: #fff; border-color: #dc2626; }
.grid-item.empty-item { background: var(--bg-alt); color: var(--text-secondary); border-color: var(--border); }

/* ── MODAL ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: rgba(0,0,0,.5);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-card {
  background: var(--bg);
  border-radius: 16px;
  padding: 36px;
  max-width: 420px;
  width: 90%;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0,0,0,.2);
}

.modal-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.modal-card p {
  color: var(--text-secondary);
  font-size: .92rem;
  line-height: 1.6;
  margin-bottom: 28px;
}

.modal-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.btn-danger {
  background: #dc2626 !important;
}

.btn-danger:hover {
  background: #b91c1c !important;
}

/* ── RESULTS ── */
.exam-results {
  padding: 80px 0;
  min-height: 100vh;
  background: var(--bg-alt);
}

.results-card {
  max-width: 720px;
  margin: 0 auto;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 48px;
  text-align: center;
  box-shadow: var(--shadow);
}

.results-card h1 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 4px;
}

.results-subtitle {
  color: var(--text-secondary);
  font-size: .95rem;
  margin-bottom: 36px;
}

.results-score-ring {
  position: relative;
  width: 160px;
  height: 160px;
  margin: 0 auto 36px;
}

.score-svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.score-bg {
  fill: none;
  stroke: var(--border);
  stroke-width: 8;
}

.score-fg {
  fill: none;
  stroke: var(--primary);
  stroke-width: 8;
  stroke-linecap: round;
  stroke-dasharray: 339.292;
  stroke-dashoffset: 339.292;
  transition: stroke-dashoffset 1.5s ease;
}

.score-text {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.score-number {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
}

.score-label {
  font-size: .85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.results-breakdown {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 36px;
}

.rb-item {
  background: var(--bg-alt);
  border-radius: var(--radius);
  padding: 20px;
}

.rb-item .rb-value {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text);
}

.rb-item .rb-label {
  font-size: .82rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

.rb-correct .rb-value { color: #16a34a; }
.rb-wrong .rb-value { color: #dc2626; }
.rb-empty .rb-value { color: var(--text-secondary); }

/* detail grid */
.results-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 36px;
  text-align: left;
}

.rd-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.rd-card-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.rd-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.rd-name {
  font-size: .88rem;
  font-weight: 600;
}

.rd-net {
  font-size: 1rem;
  font-weight: 800;
  color: var(--primary);
}

.results-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── REVIEW EXPLANATION ── */
.review-explanation {
  margin-top: 24px;
  padding: 20px 24px;
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: var(--radius);
  font-size: .92rem;
  line-height: 1.7;
  color: #166534;
}

.review-explanation strong {
  display: block;
  margin-bottom: 6px;
  font-size: .82rem;
  text-transform: uppercase;
  letter-spacing: .04em;
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .intro-card h1 { font-size: 2rem; }
  .intro-sections { grid-template-columns: 1fr; }
  .intro-stats { gap: 32px; }
  .question-card { padding: 24px 20px; border-radius: 12px; }
  .question-text { font-size: .95rem; }
  .option-btn { padding: 12px 16px; font-size: .88rem; }
  .topbar-question { display: none; }
  .results-card { padding: 32px 20px; }
  .results-breakdown { grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .results-detail-grid { grid-template-columns: 1fr; }
  .question-dots { display: none; }
  .grid-panel { padding: 20px; }
}

@media (max-width: 480px) {
  .intro-card h1 { font-size: 1.6rem; }
  .intro-stats { flex-direction: row; gap: 24px; }
  .btn-start { width: 100%; justify-content: center; }
  .exam-topbar-inner { gap: 8px; }
  .topbar-timer { font-size: .95rem; }
  .topbar-btn-finish { padding: 8px 10px; font-size: .78rem; }
  .rb-item { padding: 14px; }
  .rb-item .rb-value { font-size: 1.2rem; }
}

/* ── KaTeX Inline Overrides ── */
.question-text .katex,
.option-text .katex,
.review-explanation .katex {
  font-size: 1.05em;
  white-space: normal;
}

.option-text .katex-display {
  margin: 0;
  text-align: left;
}

.question-text .katex-html {
  white-space: normal;
  word-wrap: break-word;
}

.katex .base {
  display: inline;
}

/* ═══════════════════════════════════════════
   PAYWALL
   ═══════════════════════════════════════════ */

.paywall-wrap {
  max-width: 780px;
  margin: 0 auto;
  text-align: center;
}

.paywall-wrap h1 {
  font-size: 1.8rem;
  font-weight: 800;
  margin: 12px 0 8px;
}

.paywall-wrap > p {
  color: var(--text-secondary, #6b7280);
  font-size: 0.95rem;
  margin-bottom: 32px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.paywall-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 24px;
}

.paywall-card {
  background: #fff;
  border: 1.5px solid #e5ddd5;
  border-radius: 16px;
  padding: 28px 24px;
  text-align: left;
  position: relative;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.paywall-card:hover {
  border-color: #d4c5b5;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.paywall-card-featured {
  border-color: #e8720c;
  box-shadow: 0 0 0 1px #e8720c, 0 8px 30px rgba(232, 114, 12, 0.12);
}

.paywall-card-featured:hover {
  border-color: #e8720c;
  box-shadow: 0 0 0 1px #e8720c, 0 8px 30px rgba(232, 114, 12, 0.18);
}

.paywall-badge-popular {
  position: absolute;
  top: -11px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #e8720c, #d4650a);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 20px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.paywall-card-header h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0 0 8px;
}

.paywall-price {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--text-primary, #1a1a1a);
  line-height: 1;
}

.paywall-price-decimal {
  font-size: 1.2rem;
  font-weight: 700;
  vertical-align: super;
}

.paywall-price-sub {
  font-size: 0.82rem;
  color: var(--text-secondary, #6b7280);
  margin: 4px 0 0;
}

.paywall-features {
  list-style: none;
  padding: 0;
  margin: 20px 0 24px;
}

.paywall-features li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  padding: 6px 0;
  color: var(--text-primary, #1a1a1a);
}

.paywall-features li svg {
  flex-shrink: 0;
}

.paywall-individual-btns {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.btn-paywall-individual {
  display: block;
  text-align: center;
  padding: 10px 16px;
  border-radius: 10px;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--text-primary, #1a1a1a);
  background: #f5f0eb;
  border: 1px solid #e5ddd5;
  transition: background 0.2s, border-color 0.2s;
}

.btn-paywall-individual:hover {
  background: #ede5db;
  border-color: #d4c5b5;
}

.btn-paywall-all {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 14px 24px;
  border-radius: 12px;
  font-size: 0.95rem;
  font-weight: 700;
  text-decoration: none;
  color: #fff;
  background: linear-gradient(135deg, #e8720c, #d4650a);
  transition: opacity 0.2s, transform 0.1s;
}

.btn-paywall-all:hover {
  opacity: 0.92;
}

.btn-paywall-all:active {
  transform: scale(0.98);
}

.paywall-secure-note {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 0.78rem;
  color: var(--text-secondary, #6b7280);
  margin-top: 8px;
}

/* Locked test option */
.test-option.locked {
  opacity: 0.55;
  cursor: pointer;
  position: relative;
}

.test-option.locked:hover {
  opacity: 0.75;
  border-color: #e8720c;
}

.test-option.locked .test-option-desc {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.78rem;
  color: #e8720c;
  font-weight: 600;
}

/* Upgrade banner */
.upgrade-banner {
  text-align: center;
  margin: 12px 0 0;
}

.upgrade-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.82rem;
  font-weight: 600;
  color: #e8720c;
  text-decoration: none;
  padding: 6px 16px;
  border-radius: 8px;
  background: rgba(232, 114, 12, 0.08);
  transition: background 0.2s;
}

.upgrade-link:hover {
  background: rgba(232, 114, 12, 0.14);
}

@media (max-width: 640px) {
  .paywall-cards {
    grid-template-columns: 1fr;
  }

  .paywall-card-featured {
    order: -1;
  }

  .paywall-wrap h1 {
    font-size: 1.45rem;
  }

  .paywall-price {
    font-size: 2rem;
  }
}