:root {
  --bg-gradient: linear-gradient(135deg, #0f172a 0%, #101d36 100%);
  --surface-bg: rgba(30, 41, 59, 0.7);
  --surface-card: rgba(30, 41, 59, 0.85);
  --border-color: rgba(255, 255, 255, 0.1);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --primary: #225bbe;
  --primary-hover: #1d4eb8;
  --primary-glow: rgba(34, 91, 190, 0.4);
  --accent: #38bdf8;
  --success: #10b981;
  --error: #ef4444;
  --card-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --btn-radius: 14px;
}

[data-theme="light"] {
  --bg-gradient: linear-gradient(135deg, #f1f5f9 0%, #dbeafe 100%);
  --surface-bg: rgba(255, 255, 255, 0.8);
  --surface-card: #ffffff;
  --border-color: rgba(0, 0, 0, 0.08);
  --text-main: #0f172a;
  --text-muted: #64748b;
  --primary: #1d53b0;
  --primary-hover: #174291;
  --primary-glow: rgba(29, 83, 176, 0.25);
  --accent: #0284c7;
  --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg-gradient);
  color: var(--text-main);
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  justify-content: center;
  align-items: stretch;
  overflow-x: hidden;
}

.app-container {
  width: 100%;
  max-width: 480px;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  padding: 12px 16px;
  margin: 0 auto;
  position: relative;
}

/* Header */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 0 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-icon {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  box-shadow: 0 2px 10px var(--primary-glow);
}

.brand-title {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  display: flex;
  flex-direction: column;
}

.brand-subtitle {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.icon-btn {
  background: var(--surface-bg);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.15rem;
  transition: all 0.2s ease;
  backdrop-filter: blur(8px);
  flex-shrink: 0;
}

.icon-btn:active {
  transform: scale(0.92);
}

.icon-btn.pro-locked {
  position: relative;
}

.icon-btn.pro-locked::after {
  content: '👑';
  position: absolute;
  top: -4px;
  right: -4px;
  font-size: 0.65rem;
  line-height: 1;
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.6));
}

/* Operation Tabs */
.operation-tabs {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 4px;
  background: var(--surface-bg);
  padding: 4px;
  border-radius: var(--btn-radius);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(8px);
  margin-bottom: 12px;
  width: 100%;
  box-sizing: border-box;
}

.op-tab {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 8px 2px;
  border-radius: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  min-width: 0;
  box-sizing: border-box;
}

.op-tab span.op-label {
  font-size: 0.60rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: -0.3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
  display: block;
}

.op-tab.active {
  background: var(--primary);
  color: #ffffff;
  box-shadow: 0 4px 12px var(--primary-glow);
  transform: scale(1.02);
}

@media (min-width: 480px) {
  .operation-tabs {
    gap: 6px;
    padding: 6px;
  }
  .op-tab {
    padding: 10px 4px;
    font-size: 1.35rem;
  }
  .op-tab span.op-label {
    font-size: 0.72rem;
    letter-spacing: 0;
  }
}

/* Mode Selector */
.mode-selector {
  display: flex;
  background: var(--surface-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 4px;
  margin-bottom: 12px;
  gap: 4px;
}

.mode-btn {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 9px 8px;
  border-radius: 9px;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: center;
}

.mode-btn.active {
  background: var(--primary);
  color: #ffffff;
  box-shadow: 0 3px 10px var(--primary-glow);
  font-weight: 700;
}

/* Range Selector (Difficulty) */
.range-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  padding: 0 2px;
}

.range-label {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.range-chips {
  display: flex;
  gap: 8px;
}

.range-chip {
  background: var(--surface-bg);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 7px 13px;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.range-chip.active {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  box-shadow: 0 2px 8px var(--primary-glow);
  font-weight: 700;
}

/* Sprint Bar */
.sprint-bar-container {
  background: var(--surface-bg);
  border-radius: 6px;
  height: 6px;
  overflow: hidden;
  margin-bottom: 10px;
  display: none;
}

.sprint-bar {
  background: linear-gradient(90deg, #10b981, #f59e0b, #ef4444);
  height: 100%;
  width: 100%;
  transform-origin: left;
  transition: width 1s linear;
}

/* Bottom Dock (Training Config + Support Footer Anchored to Bottom) */
.bottom-dock {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
}

/* Training Configuration Trigger Bar (Compact Badges Dock) */
.training-config-trigger {
  width: 100%;
  background: var(--surface-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--btn-radius);
  padding: 8px 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-main);
  cursor: pointer;
  margin: 0;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: all 0.2s ease;
  font-family: inherit;
}

.training-config-trigger:active {
  transform: scale(0.985);
  background: var(--surface-card);
}

.config-trigger-badges {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  overflow-x: auto;
}

.config-pill {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent);
  background: rgba(56, 189, 248, 0.12);
  padding: 4px 10px;
  border-radius: 8px;
  border: 1px solid rgba(56, 189, 248, 0.22);
  white-space: nowrap;
}

.app-version-tag {
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-color);
  padding: 0 7px;
  border-radius: 6px;
  letter-spacing: 0.5px;
  line-height: 1;
}

.app-help-btn {
  height: 22px;
  min-width: 22px;
  box-sizing: border-box;
  font-size: 0.72rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 0 5px;
  border-radius: 6px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  line-height: 1;
}

.app-help-btn:active {
  transform: scale(0.92);
  background: rgba(56, 189, 248, 0.2);
  color: var(--accent);
}

[data-theme="light"] .app-version-tag,
[data-theme="light"] .app-help-btn {
  background: rgba(0, 0, 0, 0.05);
}

/* Main Flashcard / Display Area */
.display-card {
  flex: 1;
  max-height: 320px;
  min-height: 180px;
  background: var(--surface-card);
  border: 1px solid var(--border-color);
  border-radius: 22px;
  box-shadow: var(--card-shadow);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 24px 16px;
  margin-bottom: 12px;
  position: relative;
  cursor: pointer;
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1), border-color 0.2s ease;
}

.display-card:active {
  transform: scale(0.985);
}

.display-meta {
  position: absolute;
  top: 12px;
  left: 14px;
  right: 14px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  font-size: 0.84rem;
  font-weight: 700;
}

.meta-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: 700;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.pill-correct {
  justify-self: start;
  color: #10b981;
  background: rgba(16, 185, 129, 0.12);
}

.pill-streak {
  justify-self: center;
  color: #f59e0b;
  background: rgba(245, 158, 11, 0.15);
}

.pill-wrong {
  justify-self: end;
  color: #ef4444;
  background: rgba(239, 68, 68, 0.12);
}

.equation-text {
  font-size: clamp(2.4rem, 8.5vw, 3.4rem);
  font-weight: 800;
  letter-spacing: 0.8px;
  color: var(--text-main);
  text-align: center;
  line-height: 1.2;
  margin: 12px 0 8px;
  transition: transform 0.2s ease;
}

.solution-box {
  min-height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.solution-text {
  font-size: clamp(2.1rem, 7.5vw, 2.7rem);
  font-weight: 800;
  color: var(--accent);
  letter-spacing: 0.5px;
  animation: popIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.input-preview {
  font-size: clamp(2.1rem, 7.5vw, 2.7rem);
  font-weight: 700;
  color: var(--primary);
  border-bottom: 3px solid var(--primary);
  min-width: 80px;
  text-align: center;
  padding: 0 8px;
}

.input-preview.empty {
  color: var(--text-muted);
  opacity: 0.4;
  border-bottom-style: dashed;
}

.card-hint {
  position: absolute;
  bottom: 10px;
  font-size: 0.74rem;
  color: var(--text-muted);
  opacity: 0.85;
  letter-spacing: 0.3px;
}



.btn-primary, .btn-secondary {
  border: none;
  padding: 15px 18px;
  border-radius: var(--btn-radius);
  font-size: 1.05rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-primary {
  background: var(--primary);
  color: #ffffff;
  box-shadow: 0 4px 14px var(--primary-glow);
}

.btn-primary:active {
  transform: scale(0.96);
  background: var(--primary-hover);
}

.btn-secondary {
  background: var(--surface-bg);
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

.btn-secondary:active {
  transform: scale(0.96);
}

/* On-screen Keypad */
.keypad-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 12px;
}

.key-btn {
  background: var(--surface-bg);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  border-radius: 16px;
  min-height: clamp(54px, 7.5vh, 66px);
  padding: 10px 0;
  font-size: clamp(1.45rem, 5.5vw, 1.8rem);
  font-weight: 700;
  cursor: pointer;
  transition: all 0.12s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 6px rgba(0,0,0,0.12);
}

.key-btn:active {
  transform: scale(0.93);
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

.key-btn.key-action {
  font-size: 1.25rem;
  color: var(--accent);
}

.input-preview.wrong {
  color: var(--error) !important;
  border-bottom-color: var(--error) !important;
}

/* Respectful Sponsor / Ad / Support Bar */
.support-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(15, 23, 42, 0.4);
  border: 1px dashed var(--border-color);
  border-radius: 10px;
  padding: 8px 12px;
  margin: 0;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.support-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.support-btn {
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  background: transparent;
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: 0 8px;
  border-radius: 6px;
  font-size: 0.7rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  line-height: 1;
}

/* Pro Features List in Modal */
.pro-features-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: var(--surface-bg);
  padding: 14px;
  border-radius: 14px;
  border: 1px solid var(--border-color);
}

.pro-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.85rem;
}

.pro-feature-item span {
  width: 36px;
  min-width: 36px;
  height: 28px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 1.45rem;
  line-height: 1;
  user-select: none;
  margin-top: 2px;
}

.pro-feature-item div {
  flex: 1;
  min-width: 0;
}

.pro-feature-item strong {
  display: block;
  color: var(--text-main);
  margin-bottom: 2px;
}

.pro-feature-item p {
  color: var(--text-muted);
  font-size: 0.78rem;
  margin: 0;
}

/* Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 1100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background: var(--surface-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  width: 100%;
  max-width: 400px;
  padding: 24px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.5);
  transform: translateY(20px);
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal-overlay.open .modal-card {
  transform: translateY(0);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.modal-title {
  font-size: 1.2rem;
  font-weight: 700;
}

/* Stats Modal Enhancements */
.stats-modal-card {
  max-height: 90vh;
  overflow-y: auto;
  padding: 20px;
}

.stats-sections {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 12px;
}

.stats-group {
  background: var(--surface-bg);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 10px 12px;
}

.stats-group-header {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.stat-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.stat-grid-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 6px;
}

.stat-mini-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.18);
  border-radius: 10px;
  padding: 8px 4px;
  text-align: center;
}

[data-theme="light"] .stat-mini-item {
  background: rgba(0, 0, 0, 0.04);
}

.stat-mini-val {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.2;
}

.stat-mini-val.stat-highlight {
  color: var(--accent);
}

.stat-mini-lbl {
  font-size: 0.67rem;
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 600;
  margin-top: 3px;
  letter-spacing: 0.3px;
}

.stats-reset-trigger-container {
  display: flex;
  justify-content: center;
  margin: 10px 0 6px;
}

.btn-text-danger {
  background: transparent;
  border: none;
  color: #ef4444;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  padding: 6px 12px;
  border-radius: 8px;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 6px;
}

.btn-text-danger:hover {
  background: rgba(239, 68, 68, 0.12);
}

.stats-reset-panel {
  background: rgba(239, 68, 68, 0.08);
  border: 1px dashed rgba(239, 68, 68, 0.4);
  border-radius: 12px;
  padding: 12px;
  margin: 8px 0;
  animation: popIn 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.reset-panel-title {
  font-size: 0.82rem;
  font-weight: 700;
  color: #ef4444;
  margin-bottom: 8px;
}

.reset-options {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 12px;
}

.reset-checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-main);
  cursor: pointer;
}

.reset-checkbox {
  width: 17px;
  height: 17px;
  accent-color: #ef4444;
  cursor: pointer;
}

.reset-actions {
  display: flex;
  gap: 8px;
}

.btn-danger-confirm {
  flex: 1;
  background: #ef4444;
  color: #ffffff;
  border: none;
  padding: 9px 12px;
  border-radius: 8px;
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  transition: opacity 0.2s ease;
}

.btn-danger-confirm:active {
  opacity: 0.85;
}

.btn-cancel-reset {
  background: var(--surface-bg);
  color: var(--text-muted);
  border: 1px solid var(--border-color);
  padding: 9px 14px;
  border-radius: 8px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
}

.stats-footer-note {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 10px;
  line-height: 1.4;
  opacity: 0.75;
}

/* Keyframes */
@keyframes popIn {
  0% { transform: scale(0.6); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-8px); }
  75% { transform: translateX(8px); }
}

.shake {
  animation: shake 0.3s ease;
  border-color: var(--error) !important;
}

.celebrate {
  border-color: var(--success) !important;
}

/* Bottom Sheet for Training Config */
.bottom-sheet-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.28s ease;
}

.bottom-sheet-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.bottom-sheet-panel {
  background: var(--surface-card);
  border: 1px solid var(--border-color);
  border-bottom: none;
  border-radius: 26px 26px 0 0;
  width: 100%;
  max-width: 480px;
  max-height: 85vh;
  max-height: 85dvh;
  display: flex;
  flex-direction: column;
  padding: 12px 18px 24px;
  box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.45);
  transform: translateY(100%);
  transition: transform 0.32s cubic-bezier(0.16, 1, 0.3, 1);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.bottom-sheet-overlay.open .bottom-sheet-panel {
  transform: translateY(0);
}

.sheet-handle-bar {
  display: flex;
  justify-content: center;
  padding-bottom: 8px;
}

.sheet-handle {
  width: 40px;
  height: 5px;
  border-radius: 3px;
  background: var(--text-muted);
  opacity: 0.4;
}

.sheet-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.sheet-title-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.sheet-icon {
  font-size: 1.25rem;
}

.sheet-title {
  font-size: 1.18rem;
  font-weight: 700;
  color: var(--text-main);
}

.sheet-subtitle {
  font-size: 0.74rem;
  color: var(--text-muted);
  margin-top: 2px;
  font-weight: 500;
}

.stats-result-box {
  background: var(--surface-bg);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 12px;
  margin-top: 2px;
}

.stats-result-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.stats-result-badge {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
  background: rgba(56, 189, 248, 0.12);
  padding: 3px 8px;
  border-radius: 8px;
  border: 1px solid rgba(56, 189, 248, 0.2);
}

.stats-reset-container {
  display: flex;
  justify-content: center;
  margin: 4px 0 2px;
}

.icon-btn-sm {
  background: var(--surface-bg);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1rem;
  transition: all 0.2s ease;
}

.icon-btn-sm:active {
  transform: scale(0.92);
}

.sheet-body {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.config-section-label {
  display: block;
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  margin-bottom: 8px;
}

.sheet-confirm-btn {
  margin-top: 6px;
  width: 100%;
}