/* ==========================================================================
   NEET PG & Medical Mock Test Platform - Core Design System
   Modern, Clean, Accessible, Medical-Grade Theme (Vanilla CSS)
   ========================================================================== */

:root {
  /* Color Tokens */
  --bg-app: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #ffffff;
  --bg-subtle: #f1f5f9;
  --bg-muted: #e2e8f0;

  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-subtle: #94a3b8;
  --text-inverse: #ffffff;

  /* Brand / Medical Primary (Deep Cyan & Slate) */
  --primary-50: #f0fdfa;
  --primary-100: #ccfbf1;
  --primary-500: #0d9488;
  --primary-600: #0f766e;
  --primary-700: #115e59;
  --primary-focus: rgba(15, 118, 110, 0.25);

  --accent-blue: #2563eb;
  --accent-blue-subtle: #eff6ff;

  /* CBT Status Palette (NTA Medical Exam Standards) */
  --cbt-answered: #10b981;        /* Green */
  --cbt-not-answered: #ef4444;    /* Red */
  --cbt-marked: #8b5cf6;          /* Purple */
  --cbt-answered-marked: #6366f1; /* Indigo */
  --cbt-not-visited: #94a3b8;     /* Gray */

  --success: #10b981;
  --success-bg: #ecfdf5;
  --danger: #ef4444;
  --danger-bg: #fef2f2;
  --warning: #f59e0b;
  --warning-bg: #fffbeb;
  --info: #0284c7;
  --info-bg: #f0f9ff;

  /* Typography */
  --font-family: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Elevation / Shadows */
  --shadow-xs: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
  --shadow-sm: 0 1px 3px 0 rgba(15, 23, 42, 0.08), 0 1px 2px -1px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, 0.1), 0 8px 10px -6px rgba(15, 23, 42, 0.05);

  /* Borders & Radius */
  --border-color: #e2e8f0;
  --border-color-dark: #cbd5e1;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  /* Layout */
  --header-height: 64px;
  --container-max: 1240px;
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-app);
  color: var(--text-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--primary-600);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary-700);
}

/* Header Navigation */
.navbar {
  height: var(--header-height);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
}

.nav-container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.brand-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--primary-600), #0284c7);
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  color: white;
  font-weight: 800;
  font-size: 1rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
}

.nav-link {
  font-size: 0.925rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--text-main);
  background-color: var(--bg-subtle);
}

.admin-badge-nav {
  background: #fef3c7;
  color: #92400e;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-full);
}

/* Layout Containers */
.main-content {
  flex: 1;
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

.main-content.full-width {
  max-width: 100%;
  padding: 0;
}

/* Flash Messages */
.message-container {
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.alert {
  padding: 0.875rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: 0.925rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: 1px solid transparent;
}

.alert-success { background: var(--success-bg); color: #065f46; border-color: #a7f3d0; }
.alert-error { background: var(--danger-bg); color: #991b1b; border-color: #fecaca; }
.alert-warning { background: var(--warning-bg); color: #92400e; border-color: #fde68a; }
.alert-info { background: var(--info-bg); color: #075985; border-color: #bae6fd; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: inherit;
  font-size: 0.925rem;
  font-weight: 600;
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--primary-600);
  color: white;
}
.btn-primary:hover:not(:disabled) {
  background: var(--primary-700);
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn-secondary {
  background: var(--bg-surface);
  color: var(--text-main);
  border-color: var(--border-color);
}
.btn-secondary:hover:not(:disabled) {
  background: var(--bg-subtle);
  border-color: var(--border-color-dark);
}

.btn-accent {
  background: var(--accent-blue);
  color: white;
}
.btn-accent:hover:not(:disabled) {
  background: #1d4ed8;
  color: white;
}

.btn-danger {
  background: var(--danger);
  color: white;
}
.btn-danger:hover:not(:disabled) {
  background: #dc2626;
}

.btn-success {
  background: var(--success);
  color: white;
}
.btn-success:hover:not(:disabled) {
  background: #059669;
}

.btn-sm {
  padding: 0.4rem 0.75rem;
  font-size: 0.825rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 0.875rem 1.75rem;
  font-size: 1rem;
}

/* Cards & Surfaces */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-xs);
  transition: box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.card-hover:hover {
  box-shadow: var(--shadow-md);
  border-color: #cbd5e1;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.badge-primary { background: var(--primary-100); color: var(--primary-700); }
.badge-success { background: #dcfce7; color: #15803d; }
.badge-warning { background: #fef3c7; color: #b45309; }
.badge-danger { background: #fee2e2; color: #b91c1c; }
.badge-info { background: #e0f2fe; color: #0369a1; }
.badge-neutral { background: #f1f5f9; color: #475569; }

/* Grid Layouts */
.grid-1 { display: grid; grid-template-columns: 1fr; gap: 1.5rem; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; }

@media (max-width: 900px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* Forms & Inputs */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1.25rem;
}

.form-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-main);
}

.form-control {
  font-family: inherit;
  font-size: 0.925rem;
  padding: 0.625rem 0.875rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  color: var(--text-main);
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-600);
  box-shadow: 0 0 0 3px var(--primary-focus);
}

textarea.form-control {
  resize: vertical;
  min-height: 100px;
}

/* ==========================================================================
   CBT EXAM TAKING INTERFACE (Interactive Simulation)
   ========================================================================== */

.cbt-container {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 1.5rem;
  height: calc(100vh - var(--header-height) - 2rem);
  min-height: 580px;
}

.cbt-main-panel {
  display: flex;
  flex-direction: column;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  min-height: 0;
}

.cbt-header {
  padding: 1rem 1.5rem;
  background: #f8fafc;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.cbt-q-number {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
}

.cbt-subject-tag {
  background: #e2e8f0;
  color: #334155;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
}

.cbt-body {
  flex: 1;
  padding: 1.75rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.cbt-question-text {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-main);
  line-height: 1.6;
}

.cbt-image-container {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.75rem;
  background: #000000;
  display: inline-flex;
  justify-content: center;
  max-width: 100%;
  cursor: zoom-in;
  position: relative;
}

.cbt-image-container img {
  max-height: 380px;
  max-width: 100%;
  object-fit: contain;
  border-radius: 4px;
}

.cbt-image-hint {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(0, 0, 0, 0.75);
  color: white;
  font-size: 0.75rem;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  pointer-events: none;
}

/* CBT Option Choices */
.cbt-options-list {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.cbt-option-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  background: var(--bg-surface);
  user-select: none;
}

.cbt-option-item:hover {
  border-color: var(--primary-500);
  background: var(--primary-50);
}

.cbt-option-item.selected {
  border-color: var(--primary-600);
  background: var(--primary-50);
  box-shadow: 0 0 0 1px var(--primary-600);
}

.cbt-option-radio {
  width: 24px;
  height: 24px;
  border-radius: var(--radius-full);
  border: 2px solid var(--border-color-dark);
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 0.8rem;
  color: var(--text-muted);
  flex-shrink: 0;
  margin-top: 1px;
}

.cbt-option-item.selected .cbt-option-radio {
  background: var(--primary-600);
  border-color: var(--primary-600);
  color: white;
}

.cbt-option-text {
  font-size: 1rem;
  line-height: 1.4;
  color: var(--text-main);
}

/* CBT Action Footer */
.cbt-footer {
  padding: 1rem 1.5rem;
  background: #f8fafc;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.cbt-footer-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* CBT Right Sidebar (Timer & Palette) */
.cbt-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  height: 100%;
  min-height: 0;
}

.timer-card {
  background: #0f172a;
  color: white;
  padding: 1.25rem;
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
}

.timer-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #94a3b8;
  margin-bottom: 0.25rem;
}

.timer-digits {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: #38bdf8;
}

.timer-warning {
  color: #f87171 !important;
  animation: pulse 1s infinite alternate;
}

@keyframes pulse {
  0% { opacity: 1; }
  100% { opacity: 0.4; }
}

/* Palette Card */
.palette-card {
  flex: 1;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  min-height: 0;
}

.palette-title {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text-main);
}

.palette-legend {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
  font-size: 0.75rem;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.legend-badge {
  width: 16px;
  height: 16px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.palette-grid {
  flex: 1;
  overflow-y: auto;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.5rem;
  padding-right: 0.25rem;
}

.palette-btn {
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  border: none;
  font-size: 0.85rem;
  font-weight: 700;
  color: white;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: transform var(--transition-fast);
}

.palette-btn:hover {
  transform: scale(1.08);
}

.palette-btn.active {
  outline: 3px solid #0284c7;
  outline-offset: 1px;
}

/* CBT Status Colors */
.status-answered { background-color: var(--cbt-answered); }
.status-not-answered { background-color: var(--cbt-not-answered); }
.status-marked { background-color: var(--cbt-marked); }
.status-answered-marked { background-color: var(--cbt-answered-marked); }
.status-not-visited { background-color: var(--cbt-not-visited); }

/* Submit Exam Button */
.btn-submit-exam {
  width: 100%;
  padding: 0.875rem;
  font-weight: 700;
  background: linear-gradient(135deg, #059669, #0d9488);
  color: white;
  border-radius: var(--radius-md);
  margin-top: 0.75rem;
}

.btn-submit-exam:hover {
  background: linear-gradient(135deg, #047857, #0f766e);
}

/* Modal Dialog */
dialog.native-modal {
  border: none;
  border-radius: var(--radius-lg);
  padding: 2rem;
  background: var(--bg-surface);
  box-shadow: var(--shadow-xl);
  max-width: 520px;
  width: 90%;
  margin: auto;
}

dialog::backdrop {
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
}

/* Lightbox Modal for Clinical Images */
#image-lightbox {
  max-width: 90vw;
  max-height: 90vh;
  padding: 1rem;
  background: #000;
  text-align: center;
}

#image-lightbox img {
  max-width: 100%;
  max-height: 80vh;
  object-fit: contain;
}

/* ==========================================================================
   ADMIN SPLIT-SCREEN CURATION STUDIO
   ========================================================================== */

.split-studio {
  display: grid;
  grid-template-columns: 480px 1fr;
  gap: 1.5rem;
  height: calc(100vh - var(--header-height) - 3rem);
}

.studio-left-pane {
  display: flex;
  flex-direction: column;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.studio-pane-header {
  padding: 0.875rem 1.25rem;
  background: #f8fafc;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.studio-pane-content {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
}

.pdf-page-preview {
  width: 100%;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
  box-shadow: var(--shadow-xs);
}

.studio-right-pane {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.q-selector-tabs {
  display: flex;
  overflow-x: auto;
  background: #f8fafc;
  border-bottom: 1px solid var(--border-color);
  padding: 0.5rem 0.75rem;
  gap: 0.35rem;
}

.q-tab-btn {
  padding: 0.4rem 0.75rem;
  font-size: 0.825rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: white;
  cursor: pointer;
  white-space: nowrap;
}

.q-tab-btn.active {
  background: var(--primary-600);
  color: white;
  border-color: var(--primary-600);
}

.q-tab-btn.needs-review {
  border-color: #f59e0b;
  color: #b45309;
}

/* ==========================================================================
   SCORECARD & RESULT PAGE
   ========================================================================== */

.score-hero {
  background: linear-gradient(135deg, #0f172a, #1e293b);
  color: white;
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 2rem;
  align-items: center;
  margin-bottom: 2rem;
}

.score-circle {
  width: 150px;
  height: 150px;
  border-radius: var(--radius-full);
  border: 6px solid #38bdf8;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
}

.score-val {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1;
}

.score-max {
  font-size: 0.85rem;
  color: #94a3b8;
}

.solution-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.solution-correct-badge {
  background: #ecfdf5;
  color: #065f46;
  border: 1px solid #a7f3d0;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-full);
}

.solution-incorrect-badge {
  background: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-full);
}

.explanation-box {
  background: #f8fafc;
  border-left: 4px solid var(--primary-600);
  padding: 1rem 1.25rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin-top: 1rem;
  font-size: 0.925rem;
}

/* ==========================================================================
   MOBILE & RESPONSIVE LAYOUTS
   ========================================================================== */

@media (max-width: 992px) {
  .cbt-container {
    display: flex;
    flex-direction: column;
    height: auto;
    min-height: auto;
    gap: 1rem;
  }

  .cbt-sidebar {
    display: contents;
  }
  
  .timer-card {
    order: -1;
  }
  
  .cbt-main-panel {
    order: 0;
    min-height: 60vh;
  }
  
  .card, .palette-card {
    order: 1;
  }

  .cbt-footer {
    flex-direction: column;
    gap: 0.75rem;
  }

  .cbt-footer-group {
    width: 100%;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
  }
  
  .cbt-footer-group button {
    flex: 1;
    min-width: 140px;
  }
  
  #btn-next {
    display: none !important;
  }

  /* Admin Studio */
  .split-studio {
    grid-template-columns: 1fr;
    height: auto;
  }
}

@media (max-width: 640px) {
  .nav-links {
    gap: 0.75rem;
  }
  .nav-link {
    padding: 0.4rem 0.5rem;
    font-size: 0.8rem;
  }
  
  .cbt-q-number {
    font-size: 1rem;
  }
  
  .timer-digits {
    font-size: 1.5rem;
  }
  
  .score-hero {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

/* Additional Mobile UI Fixes */
@media (max-width: 768px) {
  /* Navbar adjustments */
  .navbar {
    height: auto;
    padding: 0.5rem 0;
  }
  .nav-container {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
  }
  .nav-links {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 0.5rem;
    -webkit-overflow-scrolling: touch;
    display: none; /* hidden by default on mobile */
    flex-direction: column;
    align-items: flex-start;
    padding: 1rem 0;
    gap: 1rem;
  }
  .nav-links.active {
    display: flex; /* shown when toggled */
  }
  .mobile-menu-btn {
    display: block;
    position: static;
  }
  
  /* Question Header adjustments */
  .cbt-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1rem;
  }
  .cbt-header > div {
    flex-wrap: wrap;
    gap: 0.5rem !important;
  }
  
  .cbt-body {
    padding: 1rem;
  }
  
  /* Fix options getting cut off */
  .cbt-option-item {
    padding: 0.75rem;
  }
}

/* Hamburger Menu CSS */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-main);
  cursor: pointer;
}

.hide-on-desktop {
  display: none !important;
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: block;
    position: static;
  }
  .hide-on-desktop {
    display: inline-flex !important;
  }
  .hide-on-mobile {
    display: none !important;
  }
}