/* Config screen */
.practice-config {
  max-width: 600px;
  margin: 0 auto;
}

.config-section {
  margin-bottom: 28px;
}

.config-section label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}

.mode-toggle {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.mode-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 20px 16px;
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
}

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

.mode-option.selected {
  border-color: var(--color-primary);
  background: var(--color-primary-dim);
}

.mode-option-icon { font-size: 1.8rem; }
.mode-option-label { font-weight: 600; font-size: 0.9rem; }
.mode-option-desc { font-size: 0.78rem; color: var(--color-text-muted); }

.simulacro-sessions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.session-option {
  padding: 16px;
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: left;
}

.session-option:hover { border-color: var(--color-primary); }
.session-option.selected { border-color: var(--color-primary); background: var(--color-primary-dim); }
.session-option-title { font-weight: 600; margin-bottom: 6px; }
.session-option-detail { font-size: 0.8rem; color: var(--color-text-muted); }

.count-options {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.count-btn {
  padding: 8px 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.88rem;
  transition: all var(--transition-fast);
}

.count-btn:hover { border-color: var(--color-primary); }
.count-btn.selected { border-color: var(--color-primary); background: var(--color-primary-dim); color: var(--color-primary); font-weight: 600; }

.competencias-checkboxes {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.competencia-check {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
}

.competencia-check:hover { border-color: var(--color-primary); }

.competencia-check input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

/* Cabecera de práctica */
.practice-header {
  position: sticky;
  top: var(--nav-height);
  z-index: 50;
  background: #0d0d0d;
  border-bottom: 1px solid var(--color-border);
  padding: 0;
}

.practice-header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  gap: 12px;
}

.practice-counter {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.practice-counter strong {
  color: var(--color-text);
}

.practice-flag-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
  color: var(--color-text-muted);
}

.practice-flag-btn:hover {
  border-color: var(--color-warning);
  color: var(--color-warning);
}

.practice-flag-btn.flagged {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-dim);
}

/* Barra de navegación de preguntas */
.nav-circles-wrapper {
  padding: 8px 24px;
  border-top: 1px solid var(--color-border);
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: #333 transparent;
}

.nav-circles {
  display: flex;
  gap: 6px;
  min-width: max-content;
  padding: 2px 0;
}

.nav-circle {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 2px solid #444;
  background: transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  position: relative;
}

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

.nav-circle.answered {
  background: radial-gradient(circle at 30% 30%, var(--red), var(--red-deep));
  border-color: var(--red);
  color: #fff;
  opacity: 0.9;
}

.nav-circle.flagged {
  background: var(--color-primary-dim);
  border-color: var(--color-primary);
  color: var(--color-primary);
  box-shadow: 0 0 8px var(--red-glow);
}

.nav-circle.current {
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.3);
  border-color: #fff;
  color: #fff;
}

.nav-circle.answered.current {
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.4);
}

/* Pregunta */
.practice-body {
  max-width: 800px;
  margin: 0 auto;
  padding: 32px 24px;
}

.question-container {
  animation: slideInRight 0.3s ease;
}

.question-context {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 24px;
  font-size: 0.92rem;
  line-height: 1.7;
  border-left: 3px solid var(--color-info);
}

.question-context-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-info);
  font-weight: 600;
  margin-bottom: 10px;
}

.question-text {
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 24px;
  font-weight: 500;
}

.question-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}

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

.practice-option {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 18px;
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: left;
  width: 100%;
}

.practice-option:hover {
  border-color: var(--color-primary);
  background: var(--color-surface-2);
}

.practice-option.selected {
  border-color: var(--color-primary);
  background: var(--color-primary-dim);
}

.practice-option-letter {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-surface-2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.82rem;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

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

.practice-option-text {
  font-size: 0.95rem;
  line-height: 1.5;
  padding-top: 3px;
}

/* Navegación pie de sesión */
.practice-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  margin-top: 32px;
  border-top: 1px solid var(--color-border);
  gap: 12px;
}

/* Resumen de sesión */
.summary-header {
  text-align: center;
  padding: 40px 24px 24px;
}

.summary-score-ring {
  width: 140px;
  height: 140px;
  margin: 20px auto;
  position: relative;
}

.summary-score-ring canvas {
  position: absolute;
  top: 0; left: 0;
}

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

.summary-score-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
}

.summary-score-label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.summary-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 24px 0;
}

.summary-stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: center;
}

.summary-stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.summary-stat-label {
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

/* Revisión de preguntas */
.review-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 24px;
}

.review-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.review-item.correct {
  border-left: 3px solid var(--color-success);
}

.review-item.wrong {
  border-left: 3px solid var(--color-error);
}

.review-item-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  cursor: pointer;
  gap: 12px;
}

.review-item-icon {
  font-size: 1rem;
  flex-shrink: 0;
}

.review-item-question {
  font-size: 0.88rem;
  flex: 1;
  line-height: 1.4;
}

.review-item-body {
  display: none;
  padding: 0 18px 16px;
  font-size: 0.88rem;
}

.review-item.expanded .review-item-body {
  display: block;
}

.review-answers {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 12px;
}

.review-answer {
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
}

.review-answer.given-wrong {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: var(--color-error);
}

.review-answer.correct-one {
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: var(--color-success);
}

.review-explanation {
  background: var(--color-surface-2);
  border-radius: var(--radius-sm);
  padding: 12px;
  color: var(--color-text-muted);
  font-size: 0.85rem;
  line-height: 1.5;
}

@media (max-width: 768px) {
  .practice-header-top {
    padding: 10px 16px;
  }

  .nav-circles-wrapper {
    padding: 8px 16px;
  }

  .practice-body {
    padding: 20px 16px;
  }

  .mode-toggle,
  .simulacro-sessions {
    grid-template-columns: 1fr;
  }

  .summary-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .summary-hero {
    grid-template-columns: 1fr !important;
  }

  .practice-footer {
    flex-wrap: wrap;
  }
}