/* ═══════════════════════════════════════════════════════════
   BT Kreativ — Tests UI redesign
   List · Detail · Exam arena · Result
   ═══════════════════════════════════════════════════════════ */

/* ── Shared hero ── */
.tq-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--nav-h, 56px) + 36px) 0 40px;
  margin-top: calc(-1 * var(--nav-h, 56px));
  color: #fff;
}
.tq-hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 80% at 15% 20%, rgba(13, 148, 136, 0.45), transparent 55%),
    radial-gradient(ellipse 60% 70% at 90% 80%, rgba(124, 58, 237, 0.4), transparent 55%),
    linear-gradient(145deg, #030712 0%, #0f172a 45%, #042f2e 100%);
  z-index: 0;
}
.tq-hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 20%, transparent 75%);
}
.tq-hero-inner { position: relative; z-index: 1; }
.tq-crumb { margin-bottom: 18px; }
.tq-crumb a { color: rgba(255,255,255,0.7); }
.tq-crumb .breadcrumb-sep,
.tq-crumb span { color: rgba(255,255,255,0.45); }

.tq-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.14);
  margin-bottom: 14px;
}
.tq-live {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #34d399;
  box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.5);
  animation: tq-live 1.8s ease infinite;
}
@keyframes tq-live {
  0% { box-shadow: 0 0 0 0 rgba(52,211,153,0.55); }
  70% { box-shadow: 0 0 0 10px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

.tq-title {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4.5vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin: 0 0 12px;
  color: #fff;
}
.tq-lead {
  margin: 0;
  max-width: 52ch;
  color: rgba(255,255,255,0.72);
  font-size: 1.05rem;
  line-height: 1.55;
}
.tq-hero-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
  flex-wrap: wrap;
}
.tq-hero-stats {
  display: flex;
  gap: 12px;
}
.tq-hero-stat {
  min-width: 100px;
  padding: 16px 18px;
  border-radius: 20px;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  backdrop-filter: blur(12px);
  text-align: center;
}
.tq-hero-stat strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}
.tq-hero-stat span {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.7;
}

/* ── List ── */
.tq-list-section { padding-top: 28px; }
.tq-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: flex-end;
  padding: 18px;
  margin-bottom: 28px;
  border-radius: 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: 0 12px 32px rgba(0,0,0,0.05);
}
.tq-filter-group {
  flex: 1;
  min-width: 200px;
  margin: 0;
}
.tq-filter-group .form-label { margin-bottom: 6px; }
.tq-filter-btn { flex-shrink: 0; border-radius: 999px; }

.tq-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.tq-card {
  --tq: #0F766E;
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 22px;
  border-radius: 26px;
  background:
    linear-gradient(160deg,
      color-mix(in srgb, var(--tq) 14%, var(--surface)) 0%,
      var(--surface) 48%);
  border: 1px solid color-mix(in srgb, var(--tq) 25%, var(--border));
  box-shadow:
    0 1px 0 rgba(255,255,255,0.05) inset,
    0 14px 36px rgba(0,0,0,0.06);
  overflow: hidden;
  transition: transform 0.35s cubic-bezier(0.16,1,0.3,1), box-shadow 0.35s, border-color 0.3s;
}
.tq-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--tq), color-mix(in srgb, var(--tq) 40%, #fff));
}
.tq-card::after {
  content: "";
  position: absolute;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  right: -40px;
  bottom: -50px;
  background: radial-gradient(circle, color-mix(in srgb, var(--tq) 28%, transparent), transparent 70%);
  pointer-events: none;
}
.tq-card:hover {
  transform: translateY(-8px);
  border-color: color-mix(in srgb, var(--tq) 50%, var(--border));
  box-shadow:
    0 1px 0 rgba(255,255,255,0.08) inset,
    0 24px 50px rgba(0,0,0,0.12),
    0 0 0 1px color-mix(in srgb, var(--tq) 18%, transparent);
}

.tq-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 14px;
  position: relative;
  z-index: 1;
}
.tq-subject {
  display: inline-flex;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--tq, var(--primary));
  background: color-mix(in srgb, var(--tq, var(--primary)) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--tq, var(--primary)) 22%, transparent);
}
.tq-subject--lg {
  margin-bottom: 12px;
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.18);
  color: #99f6e4;
}
.tq-pass {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-muted);
}
.tq-card-title {
  position: relative;
  z-index: 1;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin: 0 0 10px;
  color: var(--text);
}
.tq-card-desc {
  position: relative;
  z-index: 1;
  margin: 0 0 18px;
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--text-muted);
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.tq-metrics {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 16px;
}
.tq-metric {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 8px;
  border-radius: 14px;
  background: color-mix(in srgb, var(--bg) 70%, transparent);
  border: 1px solid var(--border);
  color: var(--tq);
}
.tq-metric strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 800;
  color: var(--text);
  line-height: 1.1;
}
.tq-metric small {
  font-size: 0.62rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}
.tq-card-cta {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 16px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 750;
  color: #fff;
  background: linear-gradient(135deg, var(--tq), color-mix(in srgb, var(--tq) 45%, #000));
  box-shadow: 0 12px 28px color-mix(in srgb, var(--tq) 32%, transparent);
  transition: transform 0.25s, box-shadow 0.25s;
}
.tq-card-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 36px color-mix(in srgb, var(--tq) 42%, transparent);
  color: #fff;
}

/* ── Detail ── */
.tq-detail-section { padding-top: 28px; }
.tq-detail-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 28px;
  align-items: start;
}
.tq-stat-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}
.tq-stat-box {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  border-radius: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: 0 10px 28px rgba(0,0,0,0.04);
}
.tq-stat-ico {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.tq-stat-ico.c-time { background: rgba(13,148,136,0.12); color: #0d9488; }
.tq-stat-ico.c-q { background: rgba(59,130,246,0.12); color: #3b82f6; }
.tq-stat-ico.c-score { background: rgba(245,158,11,0.12); color: #d97706; }
.tq-stat-ico.c-pass { background: rgba(124,58,237,0.12); color: #7c3aed; }
.tq-stat-box strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
}
.tq-stat-box span {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.tq-panel {
  padding: 22px;
  border-radius: 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: 0 12px 32px rgba(0,0,0,0.04);
  margin-bottom: 16px;
}
.tq-panel-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 800;
  margin: 0 0 14px;
}

.tq-attempts { display: flex; flex-direction: column; gap: 10px; }
.tq-attempt {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 16px;
  background: color-mix(in srgb, var(--bg) 70%, transparent);
  border: 1px solid var(--border);
}
.tq-attempt-pct {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.1rem;
  min-width: 52px;
  color: var(--primary);
}
.tq-attempt.is-fail .tq-attempt-pct { color: var(--danger, #ef4444); }
.tq-attempt-meta strong { display: block; font-size: 0.9rem; }
.tq-attempt-meta span { font-size: 0.75rem; color: var(--text-muted); }
.tq-attempt-badge {
  font-size: 0.7rem;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.tq-attempt.is-pass .tq-attempt-badge {
  background: rgba(16,185,129,0.12);
  color: #059669;
}
.tq-attempt.is-fail .tq-attempt-badge {
  background: rgba(239,68,68,0.12);
  color: #dc2626;
}

.tq-launch {
  position: relative;
  padding: 24px;
  border-radius: 26px;
  overflow: hidden;
  background:
    linear-gradient(160deg, color-mix(in srgb, var(--primary) 18%, var(--surface)), var(--surface));
  border: 1px solid color-mix(in srgb, var(--primary) 28%, var(--border));
  box-shadow: 0 18px 44px rgba(0,0,0,0.08);
  margin-bottom: 14px;
}
.tq-launch-glow {
  position: absolute;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  right: -50px;
  top: -60px;
  background: radial-gradient(circle, color-mix(in srgb, var(--primary) 35%, transparent), transparent 70%);
  pointer-events: none;
}
.tq-launch h3 {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 800;
  margin: 0 0 10px;
}
.tq-launch-note {
  position: relative;
  margin: 0 0 16px;
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
}
.tq-launch-list {
  position: relative;
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.tq-launch-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 650;
  color: var(--text-secondary);
}
.tq-launch-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 15px 18px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 800;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), color-mix(in srgb, var(--primary) 50%, #7c3aed));
  box-shadow: 0 14px 34px color-mix(in srgb, var(--primary) 35%, transparent);
  transition: transform 0.25s, box-shadow 0.25s;
}
.tq-launch-btn:hover {
  transform: translateY(-2px);
  color: #fff;
  box-shadow: 0 18px 42px color-mix(in srgb, var(--primary) 45%, transparent);
}
.tq-side-info {
  padding: 16px;
  border-radius: 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  margin-bottom: 12px;
}

/* ── Exam arena ── */
body.test-exam-page .footer,
body.test-exam-page .back-to-top {
  display: none !important;
}
body.test-exam-page #main {
  min-height: 100vh;
}
body.test-exam-page .navbar {
  backdrop-filter: blur(16px);
}

.exam-arena {
  position: relative;
  min-height: calc(100vh - var(--nav-h, 56px));
  padding-bottom: 48px;
}
.exam-arena-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(ellipse 50% 40% at 10% 0%, color-mix(in srgb, var(--primary) 12%, transparent), transparent 60%),
    radial-gradient(ellipse 45% 40% at 100% 100%, color-mix(in srgb, #7c3aed 10%, transparent), transparent 55%),
    var(--bg);
}

.exam-form { position: relative; z-index: 1; }

.exam-hud {
  position: sticky;
  top: var(--nav-h, 56px);
  z-index: 120;
  padding: 12px 0;
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(18px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.06);
}
.exam-hud-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.exam-hud-left {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  flex: 1;
}
.exam-badge {
  flex-shrink: 0;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary);
  background: color-mix(in srgb, var(--primary) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--primary) 22%, transparent);
}
.exam-hud-title {
  min-width: 0;
}
.exam-hud-title strong {
  display: block;
  font-size: 0.95rem;
  font-weight: 800;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 280px;
}
.exam-hud-title span {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 600;
}

.exam-timer {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  padding: 10px 18px;
  border-radius: 999px;
  color: var(--primary);
  background: color-mix(in srgb, var(--primary) 12%, transparent);
  border: 1.5px solid color-mix(in srgb, var(--primary) 28%, transparent);
  box-shadow: 0 8px 22px color-mix(in srgb, var(--primary) 15%, transparent);
  min-width: 110px;
  text-align: center;
  transition: color 0.25s, background 0.25s, border-color 0.25s, box-shadow 0.25s;
}
.exam-timer.warning {
  color: #d97706;
  background: rgba(245, 158, 11, 0.12);
  border-color: rgba(245, 158, 11, 0.35);
}
.exam-timer.danger {
  color: #ef4444;
  background: rgba(239, 68, 68, 0.12);
  border-color: rgba(239, 68, 68, 0.4);
  animation: pulseTimer 1s ease infinite;
}

.exam-hud-right {
  display: flex;
  align-items: center;
  gap: 14px;
  flex: 1;
  justify-content: flex-end;
}
.exam-progress {
  min-width: 140px;
  max-width: 220px;
  flex: 1;
}
.exam-progress-meta {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 6px;
  font-size: 0.78rem;
  font-weight: 750;
}
.exam-progress-label {
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.68rem;
}
.exam-progress-bar {
  height: 8px;
  background: var(--bg-muted, var(--border));
  border-radius: 999px;
  overflow: hidden;
}
.exam-progress-bar .progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), #2dd4bf, #a78bfa);
  border-radius: 999px;
  transition: width 0.35s cubic-bezier(0.16,1,0.3,1);
}

.exam-submit {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  font-weight: 800;
  font-size: 0.9rem;
  color: #fff;
  background: linear-gradient(135deg, #0d9488, #7c3aed);
  box-shadow: 0 12px 28px rgba(13, 148, 136, 0.28);
  transition: transform 0.2s, box-shadow 0.2s, opacity 0.2s;
}
.exam-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 36px rgba(124, 58, 237, 0.3);
}
.exam-submit:disabled { opacity: 0.65; cursor: wait; }
.exam-submit--lg {
  padding: 16px 28px;
  font-size: 1rem;
}

.exam-body {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 22px;
  max-width: 1100px;
  margin: 28px auto 0;
  padding: 0 20px;
  align-items: start;
}

.exam-nav {
  position: sticky;
  top: calc(var(--nav-h, 56px) + 88px);
  padding: 12px 8px;
  border-radius: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: 0 12px 30px rgba(0,0,0,0.05);
  max-height: calc(100vh - var(--nav-h, 56px) - 120px);
  overflow: auto;
}
.exam-nav-head {
  text-align: center;
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 10px;
}
.exam-nav-dots {
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: center;
}
.exam-nav-dot {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 800;
  cursor: pointer;
  transition: all 0.2s;
}
.exam-nav-dot:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.exam-nav-dot.is-done {
  background: color-mix(in srgb, var(--primary) 16%, transparent);
  border-color: color-mix(in srgb, var(--primary) 40%, transparent);
  color: var(--primary);
}

.exam-questions { min-width: 0; }

.question-card.exam-q,
.exam-q {
  position: relative;
  padding: 26px 24px;
  margin-bottom: 18px;
  border-radius: 26px;
  background:
    linear-gradient(165deg,
      color-mix(in srgb, var(--surface) 96%, #fff),
      var(--surface));
  border: 1.5px solid var(--border);
  box-shadow:
    0 1px 0 rgba(255,255,255,0.05) inset,
    0 14px 36px rgba(0,0,0,0.05);
  transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s;
}
.question-card.exam-q.answered,
.exam-q.answered {
  border-color: color-mix(in srgb, var(--primary) 45%, var(--border));
  box-shadow:
    0 1px 0 rgba(255,255,255,0.06) inset,
    0 16px 40px color-mix(in srgb, var(--primary) 12%, transparent);
}

.exam-q-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}
.exam-q-num {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.82rem;
  font-weight: 800;
  color: var(--primary);
  text-transform: none;
  letter-spacing: 0;
  margin: 0;
}
.exam-q-index {
  width: 34px;
  height: 34px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, var(--primary), color-mix(in srgb, var(--primary) 50%, #7c3aed));
  color: #fff;
  font-family: var(--font-display);
  font-size: 0.9rem;
  box-shadow: 0 8px 18px color-mix(in srgb, var(--primary) 30%, transparent);
}
.exam-q-mark {
  font-size: 0.7rem;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: 999px;
  color: #059669;
  background: rgba(16,185,129,0.12);
  border: 1px solid rgba(16,185,129,0.25);
}

.exam-q-text,
.question-text.exam-q-text {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2.2vw, 1.3rem);
  font-weight: 750;
  line-height: 1.45;
  color: var(--text);
  margin-bottom: 20px;
}

.exam-q-image {
  margin-bottom: 18px;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.exam-q-image img {
  display: block;
  width: 100%;
  max-height: 320px;
  object-fit: contain;
  background: var(--bg);
}

.exam-answers {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.answer-option.exam-answer,
.exam-answer {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  margin: 0;
  border-radius: 18px;
  background: color-mix(in srgb, var(--bg) 80%, var(--surface));
  border: 1.5px solid var(--border);
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.16,1,0.3,1);
  font-weight: 600;
  font-size: 0.95rem;
}
.exam-answer input[type="radio"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.exam-answer-letter {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.9rem;
  color: var(--text-muted);
  background: var(--surface);
  border: 1px solid var(--border);
  transition: all 0.25s;
}
.exam-answer-text { color: var(--text); line-height: 1.4; }
.exam-answer-check {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  opacity: 0;
  transform: scale(0.7);
  color: #fff;
  background: var(--primary);
  transition: all 0.25s;
}
.exam-answer:hover {
  border-color: color-mix(in srgb, var(--primary) 40%, var(--border));
  background: color-mix(in srgb, var(--primary) 6%, var(--bg));
  transform: translateX(4px);
}
.exam-answer:hover .exam-answer-letter {
  border-color: var(--primary);
  color: var(--primary);
}
.exam-answer.selected {
  border-color: color-mix(in srgb, var(--primary) 55%, var(--border));
  background:
    linear-gradient(120deg,
      color-mix(in srgb, var(--primary) 12%, var(--bg)),
      color-mix(in srgb, var(--primary) 4%, var(--surface)));
  box-shadow: 0 10px 28px color-mix(in srgb, var(--primary) 14%, transparent);
}
.exam-answer.selected .exam-answer-letter {
  background: var(--primary);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 8px 18px color-mix(in srgb, var(--primary) 30%, transparent);
}
.exam-answer.selected .exam-answer-check {
  opacity: 1;
  transform: scale(1);
}

.exam-footer-actions {
  text-align: center;
  padding: 12px 0 32px;
}

/* ── Result ── */
.tq-hero--result.is-pass .tq-hero-bg {
  background:
    radial-gradient(ellipse 70% 80% at 30% 30%, rgba(16, 185, 129, 0.4), transparent 55%),
    linear-gradient(145deg, #022c22 0%, #0f172a 55%, #042f2e 100%);
}
.tq-hero--result.is-fail .tq-hero-bg {
  background:
    radial-gradient(ellipse 70% 80% at 30% 30%, rgba(239, 68, 68, 0.3), transparent 55%),
    linear-gradient(145deg, #1c0a0a 0%, #0f172a 55%, #1e1b4b 100%);
}
.tq-result-section { margin-top: -48px; padding-top: 0; }
.tq-result-wrap { max-width: 560px; }
.tq-result-card {
  position: relative;
  text-align: center;
  padding: 36px 28px 32px;
  border-radius: 32px;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow:
    0 1px 0 rgba(255,255,255,0.06) inset,
    0 28px 70px rgba(0,0,0,0.12);
}

.tq-result-ring {
  --pct: 0;
  width: 150px;
  height: 150px;
  margin: 0 auto 20px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle, var(--surface) 62%, transparent 63%),
    conic-gradient(var(--primary) calc(var(--pct) * 1%), color-mix(in srgb, var(--border) 90%, transparent) 0);
  box-shadow: 0 12px 32px color-mix(in srgb, var(--primary) 20%, transparent);
}
.tq-hero--result.is-fail + .tq-result-section .tq-result-ring,
.tq-result-section:has(.tq-result-status.is-fail) .tq-result-ring {
  background:
    radial-gradient(circle, var(--surface) 62%, transparent 63%),
    conic-gradient(#ef4444 calc(var(--pct) * 1%), color-mix(in srgb, var(--border) 90%, transparent) 0);
  box-shadow: 0 12px 32px rgba(239, 68, 68, 0.18);
}
.tq-result-ring-inner {
  text-align: center;
}
.tq-result-ring-inner strong {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text);
}
.tq-result-ring-inner span {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.tq-result-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 0.88rem;
  margin-bottom: 16px;
}
.tq-result-status.is-pass {
  color: #059669;
  background: rgba(16,185,129,0.12);
  border: 1px solid rgba(16,185,129,0.25);
}
.tq-result-status.is-fail {
  color: #dc2626;
  background: rgba(239,68,68,0.12);
  border: 1px solid rgba(239,68,68,0.25);
}

.tq-result-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 6px;
  color: var(--text);
}
.tq-result-sub {
  margin: 0 0 22px;
  color: var(--text-muted);
  font-weight: 600;
}
.tq-result-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 24px;
}
.tq-result-metrics div {
  padding: 14px 10px;
  border-radius: 16px;
  background: color-mix(in srgb, var(--bg) 75%, transparent);
  border: 1px solid var(--border);
}
.tq-result-metrics strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.02em;
}
.tq-result-metrics span {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.tq-result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}
.tq-result-actions .btn { border-radius: 999px; }

.tq-empty {
  grid-column: 1 / -1;
}

/* Responsive */
@media (max-width: 960px) {
  .tq-detail-grid { grid-template-columns: 1fr; }
  .tq-stat-row { grid-template-columns: repeat(2, 1fr); }
  .exam-body { grid-template-columns: 1fr; }
  .exam-nav {
    position: relative;
    top: auto;
    max-height: none;
  }
  .exam-nav-dots {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
  }
}
@media (max-width: 640px) {
  .tq-metrics { grid-template-columns: 1fr; }
  .tq-attempt {
    grid-template-columns: auto 1fr;
  }
  .tq-attempt-badge,
  .tq-attempt .btn { grid-column: 1 / -1; }
  .exam-hud-title strong { max-width: 160px; }
  .exam-progress { display: none; }
  .exam-submit span { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .tq-live, .exam-timer.danger { animation: none !important; }
}

/* ═══════════════════════════════════════════════════════════
   EXAM WIZARD — chessboard map + one-question stage
   ═══════════════════════════════════════════════════════════ */

.exam-wizard .exam-body { display: none; }

.exam-wizard-layout {
  display: grid;
  grid-template-columns: minmax(240px, 300px) 1fr;
  gap: 22px;
  max-width: 1180px;
  margin: 24px auto 0;
  padding: 0 20px 40px;
  align-items: start;
  position: relative;
  z-index: 1;
}

/* Chessboard panel */
.exam-board-panel {
  position: sticky;
  top: calc(var(--nav-h, 56px) + 92px);
  padding: 18px 16px 16px;
  border-radius: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow:
    0 1px 0 rgba(255,255,255,0.05) inset,
    0 16px 40px rgba(0,0,0,0.08);
}
.exam-board-head {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 14px;
}
.exam-board-kicker {
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.exam-board-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text);
}
.exam-board-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-muted);
}
.exam-board-legend .lg {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 3px;
  margin-right: 4px;
  vertical-align: -1px;
}
.lg-current {
  background: var(--primary);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--primary) 25%, transparent);
}
.lg-done {
  background: #10b981;
}

/* Chessboard grid */
.exam-chessboard {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
  padding: 8px;
  border-radius: 16px;
  background:
    linear-gradient(145deg, color-mix(in srgb, var(--bg) 80%, #000), var(--bg));
  border: 1px solid var(--border);
}
.exam-cell {
  position: relative;
  aspect-ratio: 1;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.85rem;
  color: var(--text);
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s, color 0.2s;
  background: transparent;
  padding: 0;
}
.exam-cell-shade {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  z-index: 0;
}
/* Chess coloring */
.exam-cell:nth-child(10n+1) .exam-cell-shade,
.exam-cell:nth-child(10n+3) .exam-cell-shade,
.exam-cell:nth-child(10n+5) .exam-cell-shade,
.exam-cell:nth-child(10n+7) .exam-cell-shade,
.exam-cell:nth-child(10n+9) .exam-cell-shade {
  background: color-mix(in srgb, var(--surface) 92%, var(--text));
}
.exam-cell:nth-child(10n+2) .exam-cell-shade,
.exam-cell:nth-child(10n+4) .exam-cell-shade,
.exam-cell:nth-child(10n+6) .exam-cell-shade,
.exam-cell:nth-child(10n+8) .exam-cell-shade,
.exam-cell:nth-child(10n+10) .exam-cell-shade {
  background: color-mix(in srgb, var(--primary) 10%, var(--surface));
}
[data-theme="dark"] .exam-cell:nth-child(10n+1) .exam-cell-shade,
[data-theme="dark"] .exam-cell:nth-child(10n+3) .exam-cell-shade,
[data-theme="dark"] .exam-cell:nth-child(10n+5) .exam-cell-shade,
[data-theme="dark"] .exam-cell:nth-child(10n+7) .exam-cell-shade,
[data-theme="dark"] .exam-cell:nth-child(10n+9) .exam-cell-shade {
  background: #1e293b;
}
[data-theme="dark"] .exam-cell:nth-child(10n+2) .exam-cell-shade,
[data-theme="dark"] .exam-cell:nth-child(10n+4) .exam-cell-shade,
[data-theme="dark"] .exam-cell:nth-child(10n+6) .exam-cell-shade,
[data-theme="dark"] .exam-cell:nth-child(10n+8) .exam-cell-shade,
[data-theme="dark"] .exam-cell:nth-child(10n+10) .exam-cell-shade {
  background: #0f172a;
}

.exam-cell-num {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
}
.exam-cell:hover {
  transform: scale(1.06);
  z-index: 2;
}
.exam-cell:hover .exam-cell-num {
  color: var(--primary);
}
.exam-cell.is-done .exam-cell-shade {
  background: color-mix(in srgb, #10b981 55%, #064e3b) !important;
}
.exam-cell.is-done .exam-cell-num {
  color: #fff;
}
.exam-cell.is-done::after {
  content: "";
  position: absolute;
  right: 4px;
  bottom: 4px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #6ee7b7;
  box-shadow: 0 0 0 2px rgba(6, 78, 59, 0.4);
  z-index: 2;
}
.exam-cell.is-current {
  transform: scale(1.08);
  z-index: 3;
  box-shadow:
    0 0 0 2px var(--primary),
    0 8px 20px color-mix(in srgb, var(--primary) 35%, transparent);
}
.exam-cell.is-current .exam-cell-shade {
  background: linear-gradient(145deg, var(--primary), color-mix(in srgb, var(--primary) 50%, #7c3aed)) !important;
}
.exam-cell.is-current .exam-cell-num {
  color: #fff;
}
.exam-cell.is-current.is-done::after {
  background: #fff;
}

.exam-board-foot {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}
.exam-board-meter {
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-family: var(--font-display);
}
.exam-board-meter span {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--primary);
}
.exam-board-meter small {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-muted);
}

/* Stage — single question */
.exam-stage {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.exam-stage-inner {
  position: relative;
  min-height: 420px;
}
.exam-slide {
  display: none;
  margin-bottom: 0 !important;
}
.exam-slide.is-active {
  display: block;
  animation: examSlideIn 0.35s cubic-bezier(0.16, 1, 0.3, 1) both;
}
.exam-slide.slide-from-right {
  animation-name: examSlideFromRight;
}
.exam-slide.slide-from-left {
  animation-name: examSlideFromLeft;
}
@keyframes examSlideFromRight {
  from { opacity: 0; transform: translateX(28px) scale(0.98); }
  to { opacity: 1; transform: none; }
}
@keyframes examSlideFromLeft {
  from { opacity: 0; transform: translateX(-28px) scale(0.98); }
  to { opacity: 1; transform: none; }
}
@keyframes examSlideIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: none; }
}

.exam-q-pill {
  font-size: 0.75rem;
  font-weight: 800;
  padding: 6px 12px;
  border-radius: 999px;
  color: var(--primary);
  background: color-mix(in srgb, var(--primary) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--primary) 22%, transparent);
}

/* Bottom nav bar */
.exam-nav-bar {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-radius: 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: 0 14px 36px rgba(0,0,0,0.07);
  position: sticky;
  bottom: 16px;
  z-index: 50;
  backdrop-filter: blur(14px);
}
.exam-nav-center {
  text-align: center;
}
.exam-nav-step {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: -0.02em;
  color: var(--text);
  padding: 8px 14px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  border: 1px solid var(--border);
}

.exam-nav-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 18px;
  border-radius: 999px;
  border: 1.5px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-weight: 800;
  font-size: 0.9rem;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s, border-color 0.2s, opacity 0.2s;
}
.exam-nav-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: 0 10px 24px color-mix(in srgb, var(--primary) 15%, transparent);
}
.exam-nav-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.exam-nav-btn--prev { justify-self: start; }
.exam-nav-btn--next,
.exam-nav-btn--finish {
  justify-self: end;
  grid-column: 3;
}
.exam-nav-btn--next {
  color: #fff;
  border-color: transparent;
  background: linear-gradient(135deg, var(--primary), color-mix(in srgb, var(--primary) 50%, #7c3aed));
  box-shadow: 0 12px 28px color-mix(in srgb, var(--primary) 30%, transparent);
}
.exam-nav-btn--next:hover:not(:disabled) {
  color: #fff;
  box-shadow: 0 16px 36px color-mix(in srgb, var(--primary) 40%, transparent);
}
.exam-nav-btn--finish {
  color: #fff;
  border-color: transparent;
  background: linear-gradient(135deg, #059669, #0d9488);
  box-shadow: 0 12px 28px rgba(5, 150, 105, 0.3);
}
.exam-nav-btn--finish:hover {
  color: #fff;
  box-shadow: 0 16px 36px rgba(5, 150, 105, 0.4);
}
.exam-nav-btn.is-pulse {
  animation: examBtnPulse 0.9s ease;
}
@keyframes examBtnPulse {
  0%, 100% { transform: scale(1); }
  40% { transform: scale(1.05); }
  70% { transform: scale(1.02); }
}

/* Larger question card in wizard */
.exam-wizard .exam-q.is-active {
  min-height: 380px;
  padding: 28px 28px 24px;
  border-radius: 28px;
}

@media (max-width: 900px) {
  .exam-wizard-layout {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .exam-board-panel {
    position: relative;
    top: auto;
  }
  .exam-chessboard {
    grid-template-columns: repeat(8, 1fr);
  }
}
@media (max-width: 560px) {
  .exam-chessboard {
    grid-template-columns: repeat(5, 1fr);
  }
  .exam-nav-btn span { display: none; }
  .exam-nav-bar {
    grid-template-columns: auto 1fr auto;
    bottom: 10px;
  }
  .exam-nav-btn--next,
  .exam-nav-btn--finish {
    grid-column: auto;
  }
}
@media (prefers-reduced-motion: reduce) {
  .exam-slide.is-active,
  .exam-nav-btn.is-pulse {
    animation: none !important;
  }
}