/* ==========================================================================
   Typing Practice (Luyện gõ Pinyin) Stylesheet
   Kế thừa CSS variables từ style.css (Light/Dark Mode, Responsive)
   ========================================================================== */

.typing-container {
  max-width: 860px;
  margin: 0 auto;
  padding: 1.5rem 1rem 3rem;
  width: 100%;
  box-sizing: border-box;
  overflow-x: hidden;
}

/* Header & Cheatsheet */
.typing-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.typing-title-group {
  flex: 1;
  min-width: 260px;
}

.typing-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.25rem;
}

.typing-sub {
  font-size: 0.875rem;
  color: var(--text-sub);
}

.typing-cheatsheet-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-md);
  font-size: 0.825rem;
  color: var(--text-sub);
  box-shadow: var(--shadow-sm);
}

.typing-cheatsheet-bar .cs-item {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  white-space: nowrap;
}

.typing-cheatsheet-bar kbd {
  background: var(--bg-elevated);
  border: 1px solid var(--border-highlight);
  border-radius: 4px;
  padding: 1px 5px;
  font-size: 0.775rem;
  font-family: var(--font-base);
  font-weight: 600;
  color: var(--primary);
}

.typing-cheatsheet-bar .cs-divider {
  color: var(--text-muted);
  font-weight: 300;
}

/* Controls Card */
.typing-controls-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.typing-control-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 1rem;
}

.typing-control-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.typing-control-group label {
  font-size: 0.825rem;
  font-weight: 600;
  color: var(--text-sub);
}

.typing-select {
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-app);
  color: var(--text-main);
  font-size: 0.875rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  cursor: pointer;
  width: 100%;
}

.typing-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary-light);
}

.typing-options-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 0.85rem;
  border-top: 1px dashed var(--border-color);
}

.typing-options-left {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.25rem;
}

.typing-checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.85rem;
  color: var(--text-main);
  cursor: pointer;
  user-select: none;
}

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

/* Practice Card */
.typing-practice-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
  margin-bottom: 1.5rem;
}

.typing-stats-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.85rem;
  color: var(--text-sub);
  margin-bottom: 0.65rem;
}

.typing-stat-item {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  white-space: nowrap;
}

.typing-stat-item .stat-value {
  font-weight: 700;
  color: var(--text-main);
}

.typing-progress-track {
  width: 100%;
  height: 6px;
  background: var(--bg-elevated);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: 1.5rem;
}

.typing-progress-fill {
  height: 100%;
  background: var(--primary);
  transition: width 0.3s ease;
}

/* Question Prompt Area */
.typing-prompt-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin-bottom: 1.5rem;
  padding: 1.25rem 1rem;
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.typing-prompt-badge {
  display: inline-block;
  padding: 2px 10px;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  background: var(--primary-light);
  color: var(--primary);
  margin-bottom: 0.75rem;
}

.typing-prompt-main {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.85rem;
  flex-wrap: wrap;
}

.typing-prompt-hanzi {
  font-family: var(--font-hanzi);
  font-size: 2.5rem;
  font-weight: 600;
  color: var(--text-main);
  letter-spacing: 2px;
  line-height: 1.25;
  user-select: text;
}

.typing-prompt-hanzi.sentence-mode {
  font-size: 1.85rem;
  letter-spacing: 1px;
}

.typing-audio-btn {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  transition: transform 0.15s, background-color 0.15s, border-color 0.15s;
  box-shadow: var(--shadow-sm);
}

.typing-audio-btn:hover {
  transform: scale(1.08);
  background: var(--primary-light);
  border-color: var(--primary);
}

.typing-prompt-sub {
  font-size: 1.05rem;
  color: var(--text-sub);
  margin-top: 0.5rem;
  font-style: italic;
}

/* Syllables Feedback Display */
.typing-syllables-feedback {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.65rem;
  margin-bottom: 1.25rem;
  min-height: 58px;
  align-items: center;
}

.syl-box {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-md);
  border: 2px solid var(--border-color);
  background: var(--bg-app);
  min-width: 64px;
  transition: all 0.2s ease;
  position: relative;
}

.syl-box.placeholder {
  border-style: dashed;
  color: var(--text-muted);
}

.syl-box.correct {
  border-color: var(--success);
  background: var(--success-light);
  color: var(--success);
}

.syl-box.wrong-tone {
  border-color: var(--warning);
  background: var(--warning-light);
  color: var(--warning);
}

.syl-box.wrong {
  border-color: var(--danger);
  background: var(--danger-light);
  color: var(--danger);
}

.syl-box .syl-hanzi {
  font-family: var(--font-hanzi);
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1.2;
}

.syl-box .syl-target {
  font-size: 0.95rem;
  font-weight: 600;
  margin-top: 2px;
}

.syl-box .syl-user {
  font-size: 0.75rem;
  text-decoration: line-through;
  opacity: 0.8;
  margin-top: 1px;
}

.syl-box .syl-badge {
  font-size: 0.65rem;
  font-weight: 700;
  padding: 1px 5px;
  border-radius: 3px;
  margin-top: 3px;
  text-transform: uppercase;
}

.syl-box.wrong-tone .syl-badge {
  background: var(--warning);
  color: #fff;
}

.syl-box.wrong .syl-badge {
  background: var(--danger);
  color: #fff;
}

.syl-box.correct .syl-badge {
  background: var(--success);
  color: #fff;
}

/* Input Area */
.typing-input-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.typing-input-wrapper {
  position: relative;
  width: 100%;
  max-width: 560px;
}

.typing-input {
  width: 100%;
  font-size: 1.35rem;
  font-weight: 500;
  padding: 0.85rem 2.85rem 0.85rem 1.25rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-app);
  color: var(--text-main);
  font-family: var(--font-base);
  text-align: center;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s, background-color 0.2s;
  box-sizing: border-box;
}

.typing-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light, rgba(0, 0, 0, 0.08));
}

.typing-input.input-correct {
  border-color: var(--success) !important;
  background: var(--success-light) !important;
}

.typing-input.input-wrong {
  border-color: var(--danger) !important;
  background: var(--danger-light) !important;
}

.typing-input.input-wrong-tone {
  border-color: var(--warning) !important;
  background: var(--warning-light) !important;
}

.btn-input-clear {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1rem;
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-input-clear:hover {
  color: var(--text-main);
}

.typing-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  width: 100%;
}

.typing-actions .btn {
  min-width: 105px;
  padding: 0.65rem 1.15rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
}

.kbd-hint {
  font-size: 0.75rem;
  padding: 1px 5px;
  background: rgba(0, 0, 0, 0.08);
  border-radius: 3px;
  font-family: monospace;
}

[data-theme="dark"] .kbd-hint {
  background: rgba(255, 255, 255, 0.15);
}

.typing-keyboard-help {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 1rem;
  line-height: 1.4;
}

.typing-keyboard-help kbd {
  font-family: monospace;
  font-size: 0.75rem;
  padding: 1px 4px;
  border: 1px solid var(--border-color);
  border-radius: 3px;
  background: var(--bg-elevated);
}

/* Results Box */
.typing-result-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-md);
  margin-bottom: 2rem;
  text-align: center;
}

.result-header {
  margin-bottom: 1.5rem;
}

.result-badge-icon {
  font-size: 3rem;
  margin-bottom: 0.5rem;
}

.result-header h2 {
  font-size: 1.65rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.25rem;
}

.result-subtitle {
  color: var(--text-sub);
  font-size: 0.95rem;
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 1rem;
  margin-bottom: 1.75rem;
}

.result-stat-box {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.result-stat-num {
  font-size: 1.65rem;
  font-weight: 700;
  color: var(--text-main);
}

.result-stat-label {
  font-size: 0.8rem;
  color: var(--text-sub);
}

/* Wrong list section */
.typing-wrong-section {
  text-align: left;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-bottom: 1.5rem;
}

.typing-wrong-section h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--danger);
}

.typing-wrong-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-height: 240px;
  overflow-y: auto;
  margin-bottom: 1rem;
  padding-right: 0.25rem;
}

.wrong-item-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  gap: 0.75rem;
}

.wrong-item-left {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.wrong-item-hanzi {
  font-family: var(--font-hanzi);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-main);
}

.wrong-item-py {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary);
}

.wrong-item-vi {
  font-size: 0.85rem;
  color: var(--text-sub);
}

.wrong-actions {
  display: flex;
  justify-content: flex-end;
}

.result-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

/* History list */
.typing-history-section {
  text-align: left;
  border-top: 1px dashed var(--border-color);
  padding-top: 1.5rem;
}

.typing-history-section h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.75rem;
}

.typing-history-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.history-item-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 0.85rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--text-main);
  flex-wrap: wrap;
  gap: 0.5rem;
}

.history-item-date {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.history-item-stats {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-weight: 500;
}

/* Mobile Responsiveness (375px) */
@media (max-width: 640px) {
  .typing-container {
    padding: 1rem 0.5rem 2rem;
  }

  .typing-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .typing-cheatsheet-bar {
    width: 100%;
    justify-content: center;
    font-size: 0.775rem;
  }

  .typing-controls-card {
    padding: 1rem;
  }

  .typing-control-row {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .typing-options-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .typing-options-left {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .typing-practice-card {
    padding: 1rem;
  }

  .typing-prompt-hanzi {
    font-size: 2rem;
  }

  .typing-prompt-hanzi.sentence-mode {
    font-size: 1.4rem;
  }

  .typing-input {
    font-size: 1.15rem;
    padding: 0.75rem 2.2rem 0.75rem 0.85rem;
  }

  .typing-actions {
    flex-direction: column;
    width: 100%;
  }

  .typing-actions .btn {
    width: 100%;
  }

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