/* ═══════════════════════════════════════════════════════
   PANEL CHALLENGES — Salle d'examen Dawn
   ═══════════════════════════════════════════════════════ */

/* ── Stats bar ─────────────────────────────────────────── */
.chal-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr) 1.4fr;
  gap: 0;
  border-top: 1px solid var(--bd);
  border-bottom: 1px solid var(--bd);
  margin: 32px 0 48px;
  background: var(--bg-soft);
}
.chal-stat {
  padding: 24px 28px;
  border-right: 1px solid var(--bd);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 110px;
}
.chal-stat:last-child { border-right: none; }
.chal-stat-val {
  font-family: var(--font-display);
  font-size: 44px;
  font-weight: 400;
  line-height: 1;
  color: var(--fg);
  letter-spacing: -0.02em;
  padding-bottom: 6px;
}
.chal-stat-unit {
  font-size: 22px;
  color: var(--fg-muted);
  margin-left: 2px;
}
.chal-stat-lbl {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--fg-muted);
  font-weight: 500;
}
.chal-stat-lbl--top { margin-bottom: 8px; }
.chal-stat--streak .chal-stat-val { color: var(--brand); }
.chal-stat--weak { background: color-mix(in srgb, var(--tx) 2%, transparent); }
.chal-stat-axis {
  font-family: var(--font-display);
  font-size: 26px;
  font-style: italic;
  color: var(--brand);
  line-height: 1.1;
  margin-bottom: 4px;
}
.chal-stat-axis-sub {
  font-size: 12px;
  color: var(--fg-muted);
}

/* ── Mode switcher — gros onglets ─────────────────────── */
.chal-modes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 32px;
}
.chal-mode {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: 24px 28px;
  background: var(--bg);
  border: 1px solid var(--bd);
  border-radius: 4px;
  cursor: pointer;
  text-align: left;
  transition: all 0.2s ease;
  font-family: inherit;
}
.chal-mode:hover {
  border-color: var(--fg-muted);
}
.chal-mode.is-active {
  border-color: var(--brand);
  background: var(--bg);
  box-shadow: 0 0 0 1px var(--brand);
}
.chal-mode-icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--bd);
  border-radius: 50%;
  color: var(--fg);
  background: var(--bg-soft);
}
.chal-mode.is-active .chal-mode-icon {
  background: var(--brand);
  color: var(--bg);
  border-color: var(--brand);
}
.chal-mode-body { flex: 1; }
.chal-mode-kicker {
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--fg-muted);
  font-weight: 500;
  margin-bottom: 4px;
}
.chal-mode-title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 400;
  line-height: 1.2;
  color: var(--fg);
  margin: 0 0 6px;
  letter-spacing: -0.01em;
}
.chal-mode-desc {
  font-size: 13.5px;
  color: var(--fg-muted);
  line-height: 1.5;
  margin: 0 0 8px;
}
.chal-mode-meta {
  font-size: 12px;
  color: var(--fg-dim);
  font-variant-numeric: tabular-nums;
}

/* ── Recommended banner ────────────────────────────────── */
.chal-reco-banner {
  background: linear-gradient(180deg, rgba(217,119,87,0.07), rgba(217,119,87,0.02));
  border: 1px solid rgba(217,119,87,0.3);
  border-radius: 4px;
  padding: 28px 32px;
  margin-bottom: 32px;
}
.chal-reco-banner-kicker {
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--brand);
  font-weight: 600;
  margin-bottom: 8px;
}
.chal-reco-banner-title {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 400;
  line-height: 1.2;
  margin: 0 0 20px;
  color: var(--fg);
  letter-spacing: -0.01em;
}
.chal-reco-banner-items {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.chal-reco-banner-item {
  text-align: left;
  padding: 16px 20px;
  background: var(--bg);
  border: 1px solid var(--bd);
  border-radius: 3px;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.15s ease;
}
.chal-reco-banner-item:hover {
  border-color: var(--brand);
  transform: translateY(-1px);
}
.chal-reco-banner-item-axis {
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--brand);
  font-weight: 600;
  margin-bottom: 6px;
}
.chal-reco-banner-item-title {
  font-size: 16px;
  font-weight: 500;
  color: var(--fg);
  margin-bottom: 6px;
  line-height: 1.3;
}
.chal-reco-banner-item-meta {
  font-size: 12px;
  color: var(--fg-muted);
  font-variant-numeric: tabular-nums;
}
.chal-reco-banner-item-meta strong {
  color: var(--fg);
  font-weight: 600;
}

/* ── Cards ─────────────────────────────────────────────── */
.chal-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1px;
  background: var(--bd);
  border: 1px solid var(--bd);
  border-radius: 2px;
  margin-top: 4px;
}
.chal-card {
  background: var(--bg);
  padding: 24px 24px 20px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: background 0.15s ease;
}
.chal-card:hover { background: var(--bg-soft); }
.chal-card.is-done { opacity: 0.7; }
.chal-card.is-reco { background: rgba(217,119,87,0.03); }
.chal-card.is-reco::before {
  content: "";
  position: absolute;
  left: 0; top: 0;
  bottom: 0;
  width: 3px;
  background: var(--brand);
}

.chal-card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  min-height: 20px;
}
.chal-card-axis {
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--fg-muted);
  font-weight: 600;
}
.chal-card-badge {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 2px;
}
.chal-card-badge--reco {
  background: var(--brand);
  color: var(--bg);
}
.chal-card-badge--done {
  background: color-mix(in srgb, var(--tx) 6%, transparent);
  color: var(--fg-muted);
}

.chal-card-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 400;
  line-height: 1.25;
  color: var(--fg);
  margin: 0 0 10px;
  letter-spacing: -0.01em;
}
.chal-card-teaser {
  font-size: 13.5px;
  color: var(--fg-muted);
  line-height: 1.5;
  margin: 0 0 18px;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.chal-card-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--fg-muted);
  margin-bottom: 16px;
  font-variant-numeric: tabular-nums;
}
.chal-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.chal-meta-xp {
  color: var(--brand);
  font-weight: 600;
}
.chal-meta-sep { opacity: 0.4; }

.chal-diff {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.chal-diff-dots { display: inline-flex; gap: 2px; }
.chal-diff-dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: transparent;
  border: 1px solid var(--fg-muted);
}
.chal-diff-dot.is-filled { background: var(--fg-muted); }
.chal-diff.is-expert .chal-diff-dot.is-filled { background: var(--brand); border-color: var(--brand); }

.chal-card-foot {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 12px;
  padding-top: 14px;
  border-top: 1px solid var(--bd);
}
.chal-card-impact {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
}
.chal-card-impact-lbl {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--fg-muted);
}
.chal-card-impact-val {
  font-size: 13px;
  color: var(--fg);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

/* ═══════════════════════════════════════════════════════
   QUIZ FLOW
   ═══════════════════════════════════════════════════════ */
.panel-page--quiz {
  max-width: 860px;
  margin: 0 auto;
}
.quiz-topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
  border-bottom: 1px solid var(--bd);
  margin-bottom: 24px;
  font-size: 13px;
  gap: 20px;
}
.quiz-topbar-back {
  background: transparent;
  border: 1px solid var(--bd);
  color: var(--fg);
  cursor: pointer;
  font-family: inherit;
  font-size: 12.5px;
  padding: 7px 12px;
  border-radius: 2px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s ease;
}
.quiz-topbar-back:hover {
  background: var(--bg-soft);
  border-color: var(--fg-muted);
}
.quiz-topbar-title {
  flex: 1;
  text-align: center;
  color: var(--fg-muted);
}
.quiz-topbar-axis {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 10.5px;
  font-weight: 600;
  color: var(--brand);
}
.quiz-topbar-name { color: var(--fg); font-weight: 500; }
.quiz-topbar-sep { margin: 0 8px; opacity: 0.3; }
.quiz-topbar-progress {
  font-size: 12px;
  color: var(--fg-muted);
  font-variant-numeric: tabular-nums;
}

.quiz-dots {
  display: flex;
  gap: 6px;
  margin-bottom: 40px;
  justify-content: center;
}
.quiz-dot {
  width: 34px;
  height: 3px;
  background: var(--bd);
  border-radius: 2px;
}
.quiz-dot.is-past { background: var(--fg-muted); }
.quiz-dot.is-current { background: var(--fg); }
.quiz-dot.is-correct { background: #4a7a4a; }
.quiz-dot.is-wrong { background: #a85046; }

.quiz-question { padding: 20px 0 60px; }
.quiz-question-text {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 400;
  line-height: 1.3;
  color: var(--fg);
  margin: 12px 0 36px;
  letter-spacing: -0.01em;
}

.quiz-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 28px;
}
.quiz-opt {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  background: var(--bg);
  border: 1px solid var(--bd);
  border-radius: 3px;
  cursor: pointer;
  font-family: inherit;
  font-size: 15px;
  text-align: left;
  transition: all 0.15s ease;
  color: var(--fg);
}
.quiz-opt:hover:not(.is-locked) {
  border-color: var(--fg);
  background: var(--bg-soft);
}
.quiz-opt.is-chosen {
  border-color: var(--fg);
  background: var(--bg-soft);
}
.quiz-opt.is-locked { cursor: default; }
.quiz-opt.is-correct {
  border-color: #4a7a4a;
  background: rgba(74, 122, 74, 0.08);
  color: #2c4a2c;
}
.quiz-opt.is-wrong {
  border-color: #a85046;
  background: rgba(168, 80, 70, 0.06);
  color: #8a3b33;
}

.quiz-opt-letter {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--bd);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--fg-muted);
  background: var(--bg);
}
.quiz-opt.is-chosen .quiz-opt-letter {
  border-color: var(--fg);
  background: var(--fg);
  color: var(--bg);
}
.quiz-opt.is-correct .quiz-opt-letter {
  border-color: #4a7a4a;
  background: #4a7a4a;
  color: #fff;
}
.quiz-opt.is-wrong .quiz-opt-letter {
  border-color: #a85046;
  background: #a85046;
  color: #fff;
}
.quiz-opt-text { flex: 1; line-height: 1.4; }
.quiz-opt-cross {
  font-size: 20px;
  color: #a85046;
  font-weight: 400;
}

.quiz-feedback {
  padding: 20px 24px;
  border-left: 3px solid;
  background: var(--bg-soft);
  margin: 0 0 28px;
  border-radius: 0 3px 3px 0;
}
.quiz-feedback.is-correct {
  border-color: #4a7a4a;
  background: rgba(74, 122, 74, 0.05);
}
.quiz-feedback.is-wrong {
  border-color: #a85046;
  background: rgba(168, 80, 70, 0.04);
}
.quiz-feedback-head {
  font-family: var(--font-display);
  font-size: 17px;
  font-style: italic;
  margin-bottom: 6px;
}
.quiz-feedback.is-correct .quiz-feedback-head { color: #2c4a2c; }
.quiz-feedback.is-wrong .quiz-feedback-head { color: #8a3b33; }
.quiz-feedback-body {
  font-size: 14px;
  color: var(--fg);
  line-height: 1.55;
  margin: 0;
}

.quiz-cta {
  display: flex;
  justify-content: flex-end;
}
.btn.btn--lg {
  font-size: 14px;
  padding: 12px 22px;
}

/* ═══════════════════════════════════════════════════════
   PRACTICE EXERCISE
   ═══════════════════════════════════════════════════════ */
.panel-page--quiz .prac-wrap {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 40px;
  margin-top: 20px;
}
.panel-page--quiz { max-width: 1180px; }

.prac-brief {
  padding: 4px 0 0;
  border-right: 1px solid var(--bd);
  padding-right: 32px;
}
.prac-brief-title {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 400;
  line-height: 1.2;
  color: var(--fg);
  margin: 8px 0 14px;
  letter-spacing: -0.01em;
}
.prac-brief-body {
  font-size: 14px;
  color: var(--fg);
  line-height: 1.55;
  margin-bottom: 28px;
}
.prac-section { margin-bottom: 28px; }
.prac-section-title {
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--fg-muted);
  font-weight: 600;
  margin: 0 0 10px;
}
.prac-constraints {
  list-style: none;
  padding: 0;
  margin: 0;
}
.prac-constraints li {
  padding: 7px 0 7px 16px;
  border-bottom: 1px dashed var(--bd);
  font-size: 13.5px;
  color: var(--fg);
  line-height: 1.45;
  position: relative;
}
.prac-constraints li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--brand);
  font-weight: 600;
}
.prac-constraints li:last-child { border-bottom: none; }
.prac-eval-desc {
  font-size: 13px;
  color: var(--fg-muted);
  line-height: 1.55;
  margin: 0;
  font-style: italic;
}

.prac-reward {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 18px;
  background: var(--bg-soft);
  border: 1px solid var(--bd);
  border-radius: 3px;
  margin-top: 24px;
}
.prac-reward-xp {
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--brand);
  line-height: 1;
}
.prac-reward-impact {
  font-size: 12.5px;
  color: var(--fg);
  font-weight: 500;
}

/* Editor */
.prac-editor {
  display: flex;
  flex-direction: column;
  min-height: 480px;
}
.prac-editor-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 12px;
}
.prac-editor-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 400;
  color: var(--fg);
  margin: 0;
  letter-spacing: -0.01em;
}
.prac-editor-count {
  font-size: 12px;
  color: var(--fg-muted);
  font-variant-numeric: tabular-nums;
  font-family: var(--font-mono);
}

.prac-textarea {
  width: 100%;
  min-height: 360px;
  padding: 20px 24px;
  border: 1px solid var(--bd);
  border-radius: 3px;
  background: var(--bg-soft);
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--fg);
  resize: vertical;
  transition: border-color 0.15s ease;
}
.prac-textarea:focus {
  outline: none;
  border-color: var(--fg);
  background: var(--bg);
}
.prac-textarea::placeholder { color: var(--fg-dim); }

.prac-submit-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 20px;
  gap: 16px;
}
.prac-submit-hint {
  font-size: 13px;
  color: var(--fg-muted);
  font-style: italic;
}

/* Evaluating animation */
.prac-evaluating {
  padding: 60px 40px;
  text-align: center;
  min-height: 480px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
}
.prac-evaluating-pulse {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(217,119,87,0.3) 0%, transparent 70%);
  margin-bottom: 24px;
  animation: pulse-eval 1.6s ease-in-out 3;
  animation-fill-mode: forwards;
}
@keyframes pulse-eval {
  0%, 100% { transform: scale(1); opacity: 0.7; }
  50% { transform: scale(1.2); opacity: 1; }
}
.prac-evaluating-title {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 400;
  color: var(--fg);
  margin: 8px 0 32px;
  letter-spacing: -0.01em;
}
.prac-evaluating-steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  text-align: left;
  max-width: 380px;
  width: 100%;
}
.prac-evaluating-steps li {
  padding: 10px 16px;
  font-size: 13.5px;
  color: var(--fg-muted);
  position: relative;
  padding-left: 32px;
}
.prac-evaluating-steps li::before {
  content: "";
  position: absolute;
  left: 10px; top: 50%;
  transform: translateY(-50%);
  width: 10px; height: 10px;
  border-radius: 50%;
  border: 1.5px solid var(--bd);
  background: var(--bg);
}
.prac-evaluating-steps li.is-active { color: var(--fg); }
.prac-evaluating-steps li.is-active::before {
  background: var(--brand);
  border-color: var(--brand);
}

/* Result inline (avant écran result complet) */
.prac-result-inline {
  padding: 20px 4px;
}
.prac-result-score {
  font-family: var(--font-display);
  margin: 4px 0 28px;
  display: flex;
  align-items: baseline;
  gap: 4px;
}
.prac-result-score-val {
  font-size: 96px;
  font-weight: 400;
  line-height: 1;
  color: var(--brand);
  letter-spacing: -0.03em;
}
.prac-result-score-unit {
  font-size: 32px;
  color: var(--fg-muted);
}
.prac-result-scores {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px 32px;
  margin-bottom: 28px;
}

.score-bar { width: 100%; }
.score-bar-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 6px;
}
.score-bar-lbl {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--fg-muted);
  font-weight: 500;
}
.score-bar-val {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--fg);
  font-weight: 600;
}
.score-bar-track {
  height: 4px;
  background: var(--bd);
  border-radius: 2px;
  overflow: hidden;
}
.score-bar-fill {
  display: block;
  height: 100%;
  background: var(--brand);
  border-radius: 2px;
}

.prac-result-note {
  font-size: 13px;
  color: var(--fg-muted);
  font-style: italic;
  margin-bottom: 28px;
}

/* ═══════════════════════════════════════════════════════
   RESULT SCREEN
   ═══════════════════════════════════════════════════════ */
.panel-page--result { max-width: 980px; margin: 0 auto; }
.result-hero {
  text-align: center;
  padding: 40px 0 60px;
  border-bottom: 1px solid var(--bd);
  margin-bottom: 40px;
}
.result-hero-title {
  font-family: var(--font-display);
  font-size: 56px;
  font-weight: 400;
  line-height: 1.1;
  color: var(--fg);
  margin: 12px 0 28px;
  letter-spacing: -0.02em;
}
.result-score {
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
  margin-bottom: 24px;
}
.result-score-val {
  font-family: var(--font-display);
  font-size: 140px;
  font-weight: 400;
  line-height: 1;
  color: var(--brand);
  letter-spacing: -0.04em;
}
.result-score-unit {
  font-family: var(--font-display);
  font-size: 48px;
  color: var(--fg-muted);
}
.result-hero-body {
  font-size: 16px;
  color: var(--fg);
  line-height: 1.6;
  max-width: 620px;
  margin: 0 auto;
}

.result-feedback {
  max-width: 800px;
  margin: 0 auto 36px;
  padding: 28px 32px;
  border: 1px solid var(--bd);
  background: var(--bg2);
}
.result-feedback-body {
  font-size: 15px;
  line-height: 1.6;
  color: var(--fg);
  margin: 10px 0 22px;
}
.result-feedback-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
@media (max-width: 720px) {
  .result-feedback-cols { grid-template-columns: 1fr; }
}
.result-feedback-title {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin: 0 0 10px;
  font-weight: 600;
}
.result-feedback-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 13.5px;
  color: var(--fg);
  line-height: 1.5;
}
.result-feedback-list li {
  padding-left: 16px;
  position: relative;
}
.result-feedback-list li::before {
  content: "·";
  position: absolute;
  left: 4px;
  color: var(--brand);
  font-weight: 700;
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--bd);
  border: 1px solid var(--bd);
  margin-bottom: 48px;
}
.result-card {
  background: var(--bg);
  padding: 28px 24px;
}
.result-card-title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 400;
  line-height: 1.2;
  color: var(--fg);
  margin: 6px 0 14px;
  letter-spacing: -0.01em;
}
.result-card-body {
  font-size: 13.5px;
  color: var(--fg-muted);
  line-height: 1.55;
  margin: 0 0 16px;
}
.result-next {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.result-next li {
  font-size: 13.5px;
  color: var(--fg);
  line-height: 1.45;
  padding-left: 16px;
  position: relative;
}
.result-next li::before {
  content: "·";
  position: absolute;
  left: 4px;
  color: var(--brand);
  font-weight: 600;
}
.result-next strong {
  color: var(--fg);
  font-weight: 500;
}

.result-cta {
  display: flex;
  justify-content: center;
  gap: 16px;
  padding-bottom: 40px;
}

/* Empty state */
.chal-empty {
  text-align: center;
  padding: 80px 20px;
  max-width: 520px;
  margin: 0 auto;
}
.chal-empty-title {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 400;
  color: var(--fg);
  margin: 12px 0 16px;
  letter-spacing: -0.01em;
}
.chal-empty-body {
  font-size: 15px;
  color: var(--fg-muted);
  margin-bottom: 24px;
  line-height: 1.55;
}

/* ── Responsive ──────────────────────────────────────── */
@media (max-width: 1000px) {
  .chal-stats { grid-template-columns: 1fr 1fr; }
  .chal-stat { border-bottom: 1px solid var(--bd); }
  .chal-stats .chal-stat--weak { grid-column: span 2; }
  .chal-modes { grid-template-columns: 1fr; }
  .chal-reco-banner-items { grid-template-columns: 1fr; }
  .panel-page--quiz .prac-wrap { grid-template-columns: 1fr; }
  .prac-brief { border-right: none; padding-right: 0; border-bottom: 1px solid var(--bd); padding-bottom: 24px; }
  .result-grid { grid-template-columns: 1fr; }
}

/* ─── Empty-state inline (hub, no challenges in filter) ─── */
.chal-empty-inline {
  grid-column: 1 / -1;
  padding: 40px 32px;
  font-family: var(--font-serif, "Fraunces"), serif;
  font-style: italic;
  font-size: 14px;
  color: var(--tx3);
  text-align: center;
  border: 1px dashed var(--bd);
  border-radius: 6px;
  background: var(--bg2);
  line-height: 1.55;
}

/* ─── Heuristic fallback warning (practice, Jarvis offline) ─── */
.result-heuristic-warn {
  margin: 24px 0;
  padding: 16px 20px;
  border-left: 3px solid var(--acc, #c2410c);
  background: var(--bg2);
  border-radius: 4px;
}
.result-heuristic-warn .section-kicker {
  color: var(--acc, #c2410c);
  margin-bottom: 6px;
}
.result-heuristic-warn p {
  margin: 0;
  font-size: 13px;
  line-height: 1.55;
  color: var(--tx2);
}
.result-heuristic-warn code {
  font-family: var(--font-mono, "JetBrains Mono"), monospace;
  font-size: 12px;
  padding: 1px 5px;
  background: var(--bg);
  border: 1px solid var(--bd);
  border-radius: 3px;
}