/* Practice Setup */
.practice-setup {
  max-width: 640px;
  margin: 0 auto;
}
.practice-source-toggle {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}
.practice-source-btn {
  flex: 1;
  padding: 0.625rem 1rem;
  border: 1px solid var(--bs-border-color);
  border-radius: 8px;
  background: #fff;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--bs-secondary-color);
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}
.practice-source-btn:hover { border-color: var(--accent); color: var(--bs-body-color); }
.practice-source-btn.active {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-light);
}
.practice-source-panel { display: none; }
.practice-source-panel.active { display: block; }

.practice-course-select {
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--bs-border-color);
  border-radius: 8px;
  font-size: 0.9rem;
  background: #fff;
}
.practice-topic-input {
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--bs-border-color);
  border-radius: 8px;
  font-size: 0.9rem;
  resize: vertical;
  min-height: 60px;
}
.practice-config-section {
  margin-top: 1.25rem;
}
.practice-config-section label {
  font-weight: 500;
  font-size: 0.875rem;
  margin-bottom: 0.375rem;
  display: block;
  color: var(--bs-body-color);
}
.practice-count-input {
  width: 80px;
  padding: 0.375rem 0.5rem;
  border: 1px solid var(--bs-border-color);
  border-radius: 6px;
  font-size: 0.9rem;
  text-align: center;
}
.practice-types-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.practice-type-check {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.75rem;
  border: 1px solid var(--bs-border-color);
  border-radius: 6px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  user-select: none;
}
.practice-type-check:hover { border-color: var(--accent); }
.practice-type-check.checked {
  border-color: var(--accent);
  background: var(--accent-light);
  color: var(--accent);
}
.practice-type-check input { display: none; }
.practice-select-links {
  font-size: 0.8rem;
  color: var(--bs-secondary-color);
}
.practice-select-links a {
  color: var(--accent);
  text-decoration: none;
}
.practice-select-links a:hover {
  text-decoration: underline;
}
.practice-generate-btn {
  margin-top: 1.5rem;
  width: 100%;
}
.practice-generating {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 2rem 0;
  color: var(--bs-secondary-color);
  font-size: 0.9rem;
}
.practice-generating .spinner-border {
  width: 1.25rem;
  height: 1.25rem;
  border-width: 2px;
}
.practice-error {
  color: var(--bs-danger);
  font-size: 0.85rem;
  margin-top: 0.5rem;
}

/* Session History */
.practice-history { margin-top: 2.5rem; }
.practice-history-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--bs-body-color);
}
.practice-session-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--bs-border-color);
  text-decoration: none;
  color: inherit;
  transition: background 0.1s;
}
.practice-session-row:hover { background: var(--accent-light); margin: 0 -0.75rem; padding-left: 0.75rem; padding-right: 0.75rem; border-radius: 8px; }
.practice-session-status {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.practice-session-status.active { background: var(--accent); }
.practice-session-status.completed { background: var(--bs-success); }
.practice-session-info { flex: 1; min-width: 0; }
.practice-session-name {
  font-size: 0.9rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.practice-session-meta {
  font-size: 0.8rem;
  color: var(--bs-secondary-color);
}

/* Session Page */
.practice-session-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--bs-border-color);
  margin-bottom: 1.5rem;
}
.practice-session-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0;
}
.practice-session-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.95rem;
  min-width: 0;
}
.practice-session-breadcrumb a {
  color: var(--bs-secondary-color);
  text-decoration: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.practice-session-breadcrumb a:hover {
  color: var(--accent);
}
.practice-session-breadcrumb-sep {
  color: var(--bs-secondary-color);
  flex-shrink: 0;
}
.practice-session-breadcrumb span:last-child {
  font-weight: 600;
  color: var(--bs-body-color);
  white-space: nowrap;
}
.practice-session-progress {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.practice-session-progress-text {
  font-size: 0.85rem;
  color: var(--bs-secondary-color);
  white-space: nowrap;
}
.practice-session-progress-bar {
  width: 120px;
  height: 4px;
  background: var(--bs-border-color);
  border-radius: 2px;
  overflow: hidden;
}
.practice-session-progress-fill {
  height: 100%;
  background: var(--accent);
  transition: width 0.3s;
  border-radius: 2px;
}

/* Session exercise blocks reuse lesson block styles from main.css */
.practice-exercise-wrap {
  max-width: 680px;
  margin: 0 auto;
}
.practice-exercise { display: none; }
.practice-exercise.active { display: block; }

.practice-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1.5rem;
  margin-top: 1.5rem;
  border-top: 1px solid var(--bs-border-color);
}
.practice-nav-progress {
  font-size: 0.85rem;
  color: var(--bs-secondary-color);
}

/* Teach-back section within practice session */
.practice-tb-section {
  max-width: 680px;
  margin: 0 auto;
}

/* Completion screen */
.practice-session-complete {
  text-align: center;
  padding: 3rem 1rem;
}
.practice-session-complete-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--accent-light);
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1rem;
}
.practice-session-complete h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}
.practice-session-complete p {
  color: var(--bs-secondary-color);
  font-size: 0.9rem;
}

/* Mobile */
@media (max-width: 768px) {
  .practice-session-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
  .practice-session-progress {
    width: 100%;
  }
  .practice-session-progress-bar {
    flex: 1;
  }
  .practice-source-toggle {
    flex-direction: column;
  }
  .practice-types-grid {
    gap: 0.375rem;
  }
  .practice-type-check {
    font-size: 0.75rem;
    padding: 0.3rem 0.6rem;
  }
  .practice-nav {
    gap: 0.5rem;
  }
  .practice-exercise-wrap,
  .practice-tb-section {
    max-width: 100%;
  }
}