.trainer-screen[hidden] {
  display: none;
}

.trainer-section-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}

.trainer-section-title {
  margin-bottom: 6px;
}

.trainer-header-actions {
  margin-top: 0;
}

.trainer-inline-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 30px;
  min-height: 28px;
  padding: 0 8px;
  margin-inline-start: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.85);
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
}

.trainer-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin-bottom: 20px;
}

.trainer-stat-card {
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
}

.trainer-stat-label {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.trainer-stat-value {
  margin-top: 10px;
  font-size: 34px;
  font-weight: 800;
  color: var(--primary);
}

.trainer-search-wrap {
  margin-bottom: 20px;
}

.trainer-search-input,
.trainer-select,
.trainer-modal-content input,
.trainer-build-answer {
  width: 100%;
  min-height: 48px;
  padding: 0 14px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: #fff;
  font: inherit;
}

.trainer-word-list,
.trainer-mode-grid,
.trainer-session-stack,
.trainer-result-grid,
.trainer-empty-state {
  display: grid;
  gap: 14px;
}

.trainer-word-card,
.trainer-mode-card,
.trainer-session-card,
.trainer-result-card {
  border: 1px solid var(--border);
  border-radius: 20px;
  background: #fff;
}

.trainer-word-card {
  padding: 18px;
}

.trainer-word-main {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.trainer-word-copy {
  flex: 1 1 auto;
  min-width: 0;
}

.trainer-word-title {
  font-size: 20px;
  font-weight: 800;
  line-height: 1.3;
  word-break: break-word;
}

.trainer-word-translation {
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.5;
  word-break: break-word;
}

.trainer-word-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.trainer-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 30px;
  padding: 0 10px;
  border-radius: 999px;
  background: #eff6ff;
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
}

.trainer-chip.is-muted {
  background: #f1f5f9;
  color: var(--muted);
}

.trainer-word-actions,
.trainer-session-actions,
.trainer-builder-toolbar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.trainer-word-actions {
  flex: 0 0 auto;
}

.trainer-icon-button,
.trainer-topbar-button {
  min-width: 46px;
  min-height: 46px;
  padding: 0 12px;
}

.trainer-icon-button.is-active {
  background: #eff6ff;
  border-color: #bfdbfe;
}

.trainer-icon {
  width: 20px;
  height: 20px;
}

.trainer-empty-state {
  padding: 22px;
  border: 1px dashed var(--border);
  border-radius: 20px;
  background: #f8fafc;
  color: var(--muted);
  text-align: center;
}

.trainer-menu-shell,
.trainer-session-shell {
  display: grid;
  gap: 20px;
}

.trainer-menu-header,
.trainer-session-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.trainer-menu-card {
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
}

.trainer-mode-grid {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.trainer-mode-card {
  padding: 18px;
  text-align: left;
}

.trainer-mode-card:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.trainer-mode-title {
  font-size: 18px;
  font-weight: 800;
}

.trainer-mode-description {
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.5;
}

.trainer-session-card,
.trainer-result-card {
  padding: 22px;
}

.trainer-session-progress {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  background: #eff6ff;
  color: var(--primary);
  font-size: 13px;
  font-weight: 800;
}

.trainer-prompt {
  font-size: 14px;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.trainer-question {
  margin-top: 12px;
  font-size: 30px;
  font-weight: 800;
  line-height: 1.25;
  word-break: break-word;
}

.trainer-option-list,
.trainer-letter-grid {
  display: grid;
  gap: 12px;
  margin-top: 20px;
}

.trainer-option-button,
.trainer-letter-button {
  width: 100%;
  justify-content: flex-start;
  text-align: left;
}

.trainer-option-button.is-selected {
  background: #eff6ff;
  border-color: #93c5fd;
}

.trainer-option-button.is-correct {
  background: #dcfce7;
  border-color: #86efac;
  color: #166534;
}

.trainer-option-button.is-wrong {
  background: #fee2e2;
  border-color: #fca5a5;
  color: #991b1b;
}

.trainer-flashcard {
  min-height: 220px;
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: 24px;
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
  display: grid;
  align-items: center;
  justify-items: center;
  text-align: center;
}

.trainer-flashcard-front,
.trainer-flashcard-back {
  font-size: 30px;
  font-weight: 800;
  line-height: 1.3;
  word-break: break-word;
}

.trainer-flashcard-back {
  color: var(--primary);
}

.trainer-result-grid {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.trainer-result-value {
  font-size: 34px;
  font-weight: 800;
  color: var(--primary);
}

.trainer-builder-answer {
  margin-top: 18px;
}

.trainer-build-answer {
  display: flex;
  align-items: center;
  min-height: 54px;
  padding: 12px 14px;
  background: #f8fafc;
  word-break: break-word;
}

.trainer-builder-toolbar {
  margin-top: 14px;
}

.trainer-letter-grid {
  grid-template-columns: repeat(auto-fit, minmax(62px, 1fr));
}

.trainer-letter-button {
  justify-content: center;
  min-height: 54px;
}

.trainer-letter-button:disabled {
  opacity: 0.45;
}

.trainer-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(15, 23, 42, 0.58);
}

.trainer-modal-backdrop.is-open {
  display: flex;
}

.trainer-modal {
  position: relative;
  width: min(560px, 100%);
  background: rgba(255, 255, 255, 0.98);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: 24px;
  box-shadow: 0 28px 70px rgba(15, 23, 42, 0.28);
}

.trainer-modal-content {
  padding: 28px;
}

.trainer-modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: #fff;
  color: var(--muted);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
}

.trainer-modal-actions {
  justify-content: flex-end;
}

.trainer-toast-root {
  position: fixed;
  left: 50%;
  bottom: 24px;
  z-index: 95;
  transform: translateX(-50%);
  display: grid;
  gap: 10px;
  width: min(520px, calc(100% - 32px));
}

.trainer-toast {
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(15, 23, 42, 0.94);
  color: #fff;
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.28);
}

.trainer-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.trainer-word-input-row {
  display: flex;
  align-items: stretch;
  gap: 10px;
}

.trainer-word-input-row input {
  flex: 1 1 auto;
  min-width: 0;
}

.trainer-quick-speech-button {
  flex: 0 0 46px;
  padding-inline: 0;
}

.trainer-speech-button {
  color: var(--primary);
}

.trainer-speech-button:hover {
  border-color: #bfdbfe;
  background: #eff6ff;
}

.trainer-question-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 12px;
}

.trainer-question-row .trainer-question {
  flex: 1 1 auto;
  margin-top: 0;
}

.trainer-option-row {
  display: flex;
  align-items: stretch;
  gap: 10px;
}

.trainer-option-row .trainer-option-button {
  flex: 1 1 auto;
  width: auto;
  min-width: 0;
}

.trainer-option-text {
  min-width: 0;
  overflow-wrap: anywhere;
}

.trainer-speech-adjacent {
  flex: 0 0 46px;
  padding-inline: 0;
}

.trainer-flashcard-face,
.trainer-answer-speech {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.trainer-flashcard-face {
  flex-direction: column;
}

.trainer-speech-card {
  margin-top: 4px;
}

@media (max-width: 760px) {
  .trainer-section-header,
  .trainer-menu-header,
  .trainer-session-header,
  .trainer-word-main {
    flex-direction: column;
    align-items: stretch;
  }

  .trainer-word-actions,
  .trainer-session-actions,
  .trainer-builder-toolbar {
    width: 100%;
  }

  .trainer-word-actions .button,
  .trainer-session-actions .button,
  .trainer-builder-toolbar .button,
  .trainer-header-actions .button {
    flex: 1 1 auto;
  }
}

@media (max-width: 680px) {
  .trainer-modal-content {
    padding: 22px;
  }

  .trainer-toast-root {
    bottom: 16px;
  }
}