/* ITCSS Structure - Isaac's Learning Hub */

/* Settings - Atomic Design Tokens */
:root {
  /* Color Tokens - Base Palette */
  --color-blue-400: #60A5FA;
  --color-blue-500: #3B82F6;
  --color-blue-600: #2563EB;
  --color-purple-500: #8B5CF6;
  --color-purple-600: #7C3AED;
  --color-pink-500: #EC4899;
  --color-pink-600: #DB2777;
  --color-cyan-500: #06B6D4;
  --color-amber-500: #F59E0B;
  --color-amber-600: #D97706;
  --color-green-500: #10B981;
  --color-green-600: #059669;
  --color-red-500: #EF4444;
  
  /* Theme-specific tokens are now loaded from separate theme files */
  /* Base semantic tokens will be overridden by theme-specific values */
  
  /* Spacing Tokens */
  --spacing-xs: 0.25rem;   /* 4px */
  --spacing-sm: 0.5rem;    /* 8px */
  --spacing-md: 1rem;      /* 16px */
  --spacing-lg: 1.5rem;    /* 24px */
  --spacing-xl: 2rem;      /* 32px */
  --spacing-2xl: 3rem;     /* 48px */
  --spacing-3xl: 4rem;     /* 64px */
  
  /* Radius Tokens */
  --radius-sm: 0.5rem;     /* 8px */
  --radius-md: 0.75rem;    /* 12px */
  --radius-lg: 1rem;       /* 16px */
  --radius-xl: 1.25rem;    /* 20px */
  --radius-full: 9999px;
  
  /* Shadow Tokens - will be overridden by theme files */
  
  /* Typography Tokens */
  --font-family-primary: 'Poppins', sans-serif;
  --font-size-xs: 0.75rem;   /* 12px */
  --font-size-sm: 0.875rem;  /* 14px */
  --font-size-base: 1rem;    /* 16px */
  --font-size-lg: 1.125rem;  /* 18px */
  --font-size-xl: 1.25rem;   /* 20px */
  --font-size-2xl: 1.5rem;   /* 24px */
  --font-size-3xl: 1.875rem; /* 30px */
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;
  --font-weight-black: 900;
  
  /* Animation Tokens */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  --animation-bounce: cubic-bezier(0.4, 0, 0.2, 1);
  --animation-elastic: cubic-bezier(0.05, 0.83, 0.43, 0.96);
  
  /* Elevation Tokens - will be overridden by theme files */
  
  /* Button Intent Colors - Self-Contained Gradients */
  --btn-primary-bg: linear-gradient(140deg, #3B82F6 15%, #1E40AF 115%);
  --btn-primary-border: linear-gradient(142deg, #60A5FA 9%, #1D4ED8 89%);
  --btn-primary-shadow: rgba(59, 130, 246, 0.35);
  
  --btn-secondary-bg: linear-gradient(140deg, #EC4899 15%, #BE185D 115%);
  --btn-secondary-border: linear-gradient(142deg, #F472B6 9%, #C2185B 89%);
  --btn-secondary-shadow: rgba(236, 72, 153, 0.35);
  
  --btn-success-bg: linear-gradient(140deg, #10B981 15%, #047857 115%);
  --btn-success-border: linear-gradient(142deg, #34D399 9%, #059669 89%);
  --btn-success-shadow: rgba(16, 185, 129, 0.35);
  
  --btn-warning-bg: linear-gradient(140deg, #F59E0B 15%, #D97706 115%);
  --btn-warning-border: linear-gradient(142deg, #FBBF24 9%, #B45309 89%);
  --btn-warning-shadow: rgba(245, 158, 11, 0.35);
  
  --btn-danger-bg: linear-gradient(140deg, #EF4444 15%, #DC2626 115%);
  --btn-danger-border: linear-gradient(142deg, #F87171 9%, #B91C1C 89%);
  --btn-danger-shadow: rgba(239, 68, 68, 0.35);
  
  --btn-neutral-bg: linear-gradient(140deg, #64748B 15%, #475569 115%);
  --btn-neutral-border: linear-gradient(142deg, #94A3B8 9%, #334155 89%);
  --btn-neutral-shadow: rgba(100, 116, 139, 0.35);
}

/* Tools - Utility classes */
.font-modern {
  font-family: 'Poppins', sans-serif;
}

.font-tech {
  font-family: 'Inter', sans-serif;
}

.font-nunito {
  font-family: 'Poppins', sans-serif; /* Override for modern feel */
}

/* Generic - Box sizing, normalize */
* {
  box-sizing: border-box;
}

body {
  font-family: var(--font-family-primary);
  font-weight: var(--font-weight-normal);
  line-height: 1.6;
  margin: 0;
  padding: 0;
  min-height: 100vh;
  background: var(--bg-body);
  color: var(--text-primary);
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}


@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}

/* Ensure main content takes available space */
main {
  flex: 1;
}

/* Ensure proper container widths */
.max-w-6xl {
  max-width: 72rem;
  margin-left: auto;
  margin-right: auto;
}

/* Fix potential layout shifts */
img {
  max-width: 100%;
  height: auto;
}

/* Ensure grid containers work properly */
.grid {
  display: grid;
}

/* Profile image styling - Game Character Style */
.profile-image {
  image-rendering: pixelated;
  image-rendering: -moz-crisp-edges;
  image-rendering: crisp-edges;
}

/* Ensure profile images are blocky and game-like */
.profile-container img {
  object-fit: cover;
  object-position: center center;
  border-radius: var(--border-radius);
}

/* Removed profile container hover effects - profile images are not interactive */

/* Elements - Base HTML elements */
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  outline: none;
  border-radius: var(--radius-sm);
  box-shadow: var(--elevation-1-shadow);
  transition: all 0.3s ease;
  font-weight: var(--font-weight-semibold);
  position: relative;
  overflow: hidden;
}

button:hover {
  transform: translateY(-1px);
  box-shadow: var(--elevation-2-shadow);
}

button:active {
  transform: translateY(0);
}


input {
  font-family: inherit;
  border-radius: var(--radius-sm);
  box-shadow: var(--elevation-1-shadow);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  backdrop-filter: blur(10px);
  color: var(--text-primary);
}

input:focus {
  box-shadow: var(--elevation-2-shadow), 0 0 20px rgba(0, 212, 255, 0.3);
  transform: translateY(-2px);
  border-color: var(--color-primary);
}

/* Objects - Layout patterns */
.card {
  background: var(--bg-surface);
  backdrop-filter: blur(20px);
  border-radius: var(--radius-md);
  box-shadow: var(--elevation-2-shadow);
  border: 1px solid var(--border-color);
  position: relative;
  transition: all 0.3s ease;
}

/* Only apply hover effects to interactive cards (links, buttons) */
a.card:hover,
button.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--elevation-3-shadow);
  border-color: var(--border-color-focus);
}

.card-solid {
  background: var(--bg-surface-solid);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.card-solid:hover {
  box-shadow: var(--elevation-3-shadow);
}

/* Components - UI components */

/* THEME-AGNOSTIC BUTTON SYSTEM - Works in any theme */
.btn {
  /* Base button foundation */
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 10px 24px;
  font-family: var(--font-family-primary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  line-height: 1.2;
  border-radius: 7px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  color: white;
  text-shadow: var(--text-shadow-base);
  position: relative;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  box-shadow: none !important;
}

.btn:not(:disabled):hover {
  box-shadow: none;
  opacity: 0.8;
}

.btn:not(:disabled):active {
  opacity: 0.9;
  transform: translateY(1px);
}

/* Button Sizes */
.btn-sm {
  padding: 8px 20px;
  font-size: var(--font-size-xs);
  gap: 4px;
}

.btn-lg {
  padding: 12px 32px;
  font-size: var(--font-size-base);
  gap: var(--spacing-md);
}

/* Button Intent Variants - Self-Contained */
.btn-primary {
  background: var(--btn-primary-bg) padding-box,
              var(--btn-primary-border) border-box;
  box-shadow: var(--elevation-2-shadow), 
              0 0 0 1px var(--btn-primary-shadow);
}

.btn-secondary {
  background: var(--btn-secondary-bg) padding-box,
              var(--btn-secondary-border) border-box;
  box-shadow: var(--elevation-2-shadow), 
              0 0 0 1px var(--btn-secondary-shadow);
}

.btn-success {
  background: var(--btn-success-bg) padding-box,
              var(--btn-success-border) border-box;
  box-shadow: var(--elevation-2-shadow), 
              0 0 0 1px var(--btn-success-shadow);
}

.btn-warning {
  background: var(--btn-warning-bg) padding-box,
              var(--btn-warning-border) border-box;
  box-shadow: var(--elevation-2-shadow), 
              0 0 0 1px var(--btn-warning-shadow);
}

.btn-danger {
  background: var(--btn-danger-bg) padding-box,
              var(--btn-danger-border) border-box;
  box-shadow: var(--elevation-2-shadow), 
              0 0 0 1px var(--btn-danger-shadow);
}

.btn-neutral {
  background: var(--btn-neutral-bg) padding-box,
              var(--btn-neutral-border) border-box;
  box-shadow: var(--elevation-2-shadow), 
              0 0 0 1px var(--btn-neutral-shadow);
}

/* Subtle Button Variants */
.btn-outline {
  background: transparent;
  border: 2px solid var(--border-color);
  color: var(--text-primary);
  text-shadow: none;
  box-shadow: var(--elevation-1-shadow);
}

.btn-outline:not(:disabled):hover {
  background: var(--bg-input);
  border-color: var(--border-color-focus);
}

.btn-ghost {
  background: transparent;
  border: 2px solid transparent;
  color: var(--text-primary);
  text-shadow: none;
  box-shadow: none;
}

.btn-ghost:not(:disabled):hover {
  background: var(--bg-input);
  box-shadow: var(--elevation-1-shadow);
}

/* Button States */
.btn-active {
  opacity: 0.9 !important;
  transform: translateY(1px) !important;
  box-shadow: var(--elevation-1-shadow) !important;
}

.btn-loading {
  pointer-events: none;
}

.btn-loading::after {
  content: '';
  position: absolute;
  width: 1rem;
  height: 1rem;
  border: 2px solid transparent;
  border-top: 2px solid currentColor;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

/* Special Button Types */
.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  justify-content: center;
}

.btn-icon.btn-sm {
  width: 32px;
  height: 32px;
}

.btn-icon.btn-lg {
  width: 48px;
  height: 48px;
}

.btn-floating {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  padding: 0;
  box-shadow: var(--elevation-3-shadow);
}

.btn-floating:not(:disabled):hover {
  box-shadow: var(--elevation-2-shadow);
}

/* Magic Button - Challenge Button Style */
.btn-magic {
  background: var(--btn-primary-bg) padding-box,
              var(--btn-primary-border) border-box;
  box-shadow: var(--elevation-2-shadow);
  position: relative;
  overflow: visible;
  padding: 12px 35px;
  font-size: 17px;
}

.btn-magic:not(:disabled):hover {
  background: transparent;
  color: var(--color-accent-blue);
  border-color: var(--color-accent-blue);
  box-shadow: 0 0 25px var(--btn-primary-shadow);
  opacity: 1;
}

/* Animations */
@keyframes spin {
  to { transform: rotate(360deg); }
}

.buddy-chat-bubble {
  animation: bounceIn 0.5s ease-out;
  width: 100%;
  word-wrap: break-word;
}

.progress-bar {
  transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.achievement-glow {
  box-shadow: 0 0 20px rgba(251, 191, 36, 0.3);
}

/* Fix layout issues */
.card-container {
  display: flex;
  flex-direction: column;
  height: 100%;
}

/* Ensure consistent spacing */
.dashboard-grid {
  display: grid;
  gap: 1.5rem;
}

/* Fix floating elements */
.floating-chat {
  position: fixed;
  z-index: 1000;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Chat panel animations */
#moeBuddyPanel {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

#moeBuddyPanel.show {
  opacity: 1;
  transform: translateY(0) !important;
}

#moeBuddyPanel.hide {
  opacity: 0;
  transform: translateY(-100%) !important;
}

/* Footer styling */
footer {
  margin-top: 4rem;
  position: relative;
  z-index: 10;
}

/* Ensure chat doesn't overlap footer on small screens */
@media (max-height: 800px) {
  #moeBuddyPanel {
    max-height: calc(100vh - 200px);
  }
  
  #chatMessages {
    max-height: 200px;
  }
}

/* Utilities - Helper classes */
/* Removed generic .hover-lift class to prevent meaningless animations on non-interactive elements */

.glassmorphism {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Animations */
@keyframes bounceIn {
  0% {
    opacity: 0;
    transform: scale(0.3) translateY(20px);
  }
  50% {
    opacity: 1;
    transform: scale(1.05);
  }
  70% {
    transform: scale(0.9);
  }
  100% {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.animate-pulse-soft {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Custom scrollbar for chat - theme specific styles moved to theme files */
#chatMessages::-webkit-scrollbar {
  width: 6px;
}

#chatMessages::-webkit-scrollbar-track {
  background: transparent;
  border-radius: 3px;
}

/* Chat panel specific styles - use theme-aware shadow tokens */
#moeBuddyPanel {
  box-shadow: var(--shadow-lg);
}

/* Notification badge pulse */
@keyframes notification-pulse {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.1);
    opacity: 0.8;
  }
}

.notification-badge {
  animation: notification-pulse 2s infinite;
}

/* Academy-specific Components from index.html */
.academy-card {
  background: var(--bg-surface);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(20px);
  transition: var(--transition-base);
}

/* Only apply hover effects to interactive academy cards (links, buttons) */
a.academy-card:hover,
button.academy-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}

.progress-bar {
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  overflow: hidden;
  height: 8px;
  border: 1px solid var(--border-color);
}

.progress-fill {
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent-blue));
  height: 100%;
  border-radius: inherit;
  transition: width 0.8s var(--animation-bounce);
}

.chat-area {
  background: var(--bg-surface);
  border-left: 2px solid var(--border-color);
  height: 100vh;
  backdrop-filter: blur(20px);
}

.chat-message {
  border-radius: var(--radius-sm);
  padding: var(--spacing-md);
  margin: var(--spacing-sm) 0;
}

.stat-number {
  font-size: 3rem; /* 48px - much larger for dashboard impact */
  font-weight: var(--font-weight-black);
  line-height: 1;
  margin-bottom: var(--spacing-sm);
  display: block;
}

/* Notebook Glass Modal */
.glass-overlay {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: var(--bg-overlay);
  backdrop-filter: blur(8px);
  z-index: 1000;
}

.glass-modal {
  width: min(96vw, 1100px);
  height: min(92vh, 760px);
  border: 1px solid var(--border-color-muted);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  color: var(--text-primary);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.glass-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-xl);
  border-bottom: 1px solid var(--border-color-muted);
}

.glass-body {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  height: 100%;
}

.glass-col {
  border: 1px solid var(--border-color-muted);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  overflow: auto;
}


.notes-textarea {
  width: 100%;
  height: calc(100% - 8px);
  border: 1px solid var(--border-color-muted);
  color: var(--text-primary);
  border-radius: 10px;
  resize: none;
  padding: var(--spacing-md);
  outline: none;
  font-family: var(--font-family-primary);
}

.notes-textarea:focus {
  border-color: var(--border-color-focus);
}

.mermaid {
  border-radius: 10px;
  padding: var(--spacing-md);
}

/* Hide scrollbars */
::-webkit-scrollbar { display: none; }
* { scrollbar-width: none; }
.overflow-y-auto { -ms-overflow-style: none; scrollbar-width: none; }

/* Utilities - Tailwind-compatible utilities and overrides */
.academy-card {
  overflow: visible !important;
}

.text-center {
  overflow: visible !important;
}


/* Desktop layout utility */
.desktop-layout {
  display: flex;
  height: 100vh;
}

/* Chat input styling with design tokens */
#chatInput {
  background: var(--bg-input) !important;
  border: 1px solid var(--border-color) !important;
  color: var(--text-primary) !important;
}

#chatInput:focus {
  background: var(--bg-input-focus) !important;
  border-color: var(--border-color-focus) !important;
}

#chatInput::placeholder {
  color: var(--text-secondary) !important;
}


/* Border utilities using design tokens */
.border-white\/10 { border-color: var(--border-color-muted) !important; }
.border-white\/20 { border-color: var(--border-color) !important; }

/* Text color utilities using design tokens */
.text-gray-300 { color: var(--text-secondary) !important; }
.text-gray-400 { color: var(--text-secondary) !important; }
.text-white { color: var(--text-primary) !important; }

/* Screen1 Interactive Components - Timeline Assessment */
.timeline-container {
  margin: 2rem 0;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.02);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color-muted);
}

.timeline {
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  padding: 2rem 0;
}

.timeline::before {
  content: '';
  position: absolute;
  top: calc(50% - 0.5rem);
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent-blue));
  transform: translateY(-50%);
  z-index: 0;
}

.timeline-marker {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  z-index: 2;
}

.year-label {
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-lg);
  color: var(--text-primary);
  margin-bottom: 1rem;
  padding: 0.5rem 1rem;
  background: var(--bg-surface);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.drop-zone {
  width: 120px;
  height: 80px;
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  transition: all var(--transition-base);
  background: var(--bg-input);
}

.drop-zone.drag-over {
  border-color: var(--color-primary);
  background: rgba(79, 70, 229, 0.1);
  color: var(--color-primary);
  transform: scale(1.05);
}

.drop-zone.filled {
  border-style: solid;
  border-color: var(--color-success);
  background: rgba(16, 185, 129, 0.1);
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
  margin: 2rem 0;
}

.drag-card {
  background: var(--bg-surface);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
  cursor: grab;
  transition: all var(--transition-base);
  box-shadow: var(--elevation-1-shadow);
}

.drag-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--elevation-2-shadow);
  border-color: var(--border-color-focus);
}

.drag-card.dragging {
  opacity: 0.5;
  transform: rotate(5deg) scale(0.95);
  cursor: grabbing;
}

.drag-card h3 {
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-lg);
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.drag-card p {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: 1.4;
}

.dropped-card {
  width: 100%;
  height: 100%;
}

.card-mini {
  background: var(--bg-surface);
  border: 1px solid var(--color-success);
  border-radius: var(--radius-sm);
  padding: 0.5rem;
  position: relative;
  font-size: var(--font-size-xs);
  color: var(--text-primary);
}

.card-mini h4 {
  font-weight: var(--font-weight-semibold);
  margin: 0;
  padding-right: 1.5rem;
}

.remove-btn {
  position: absolute;
  top: 0.25rem;
  right: 0.25rem;
  width: 1.25rem;
  height: 1.25rem;
  border: none;
  background: var(--color-danger);
  color: white;
  border-radius: 50%;
  cursor: pointer;
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.remove-btn:hover {
  background: #DC2626;
  transform: scale(1.1);
}

/* Score Display */
.score-display {
  position: fixed;
  top: 2rem;
  right: 2rem;
  background: var(--bg-surface);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1rem;
  text-align: center;
  box-shadow: var(--elevation-2-shadow);
  backdrop-filter: blur(10px);
  z-index: 100;
}

.score-number {
  font-size: 2rem;
  font-weight: var(--font-weight-black);
  color: var(--color-accent-yellow);
  transition: transform var(--transition-fast);
}

/* Floating Particles */
.floating-particles {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  overflow: hidden;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--color-accent-blue);
  border-radius: 50%;
  opacity: 0.6;
  animation: float-up 12s linear infinite;
}

@keyframes float-up {
  0% {
    transform: translateY(100vh) rotate(0deg);
    opacity: 0;
  }
  10% {
    opacity: 0.6;
  }
  90% {
    opacity: 0.6;
  }
  100% {
    transform: translateY(-20px) rotate(360deg);
    opacity: 0;
  }
}

/* Glass Modal Components */
.glass-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border-color-muted);
}

.glass-modal-body {
  flex: 1;
  padding: var(--spacing-lg);
  overflow-y: auto;
}

.glass-modal-footer {
  padding: var(--spacing-lg);
  border-top: 1px solid var(--border-color-muted);
}

.glass-close {
  background: none;
  border: 2px solid var(--border-color);
  color: var(--text-secondary);
  width: 2rem;
  height: 2rem;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.glass-close:hover {
  border-color: var(--color-danger);
  color: var(--color-danger);
}

/* Achievement Notifications */
.achievement-notification {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: linear-gradient(135deg, var(--color-accent-yellow), var(--color-amber-600));
  color: white;
  padding: 2rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--elevation-3-shadow);
  text-align: center;
  z-index: 1000;
  min-width: 300px;
  animation: achievementPop 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.achievement-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

@keyframes achievementPop {
  0% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.3);
  }
  100% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
  }
}

/* Path Generation Section */
.analyzing-state {
  text-align: center;
  padding: 3rem;
}

.spinner {
  width: 60px;
  height: 60px;
  border: 4px solid var(--border-color-muted);
  border-top: 4px solid var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 2rem;
}

.badge-achievement {
  background: linear-gradient(135deg, var(--color-accent-yellow), var(--color-amber-600));
  padding: 2rem;
  border-radius: var(--radius-lg);
  text-align: center;
  margin: 2rem 0;
  position: relative;
  overflow: hidden;
}

.badge-achievement::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transform: rotate(45deg);
  animation: shine 2s infinite;
}

@keyframes shine {
  0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
  100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

.badge-icon {
  margin-bottom: 1rem;
}

.path-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 1rem;
  margin: 2rem 0;
}

.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
  text-align: center;
  transition: all var(--transition-base);
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--elevation-2-shadow);
}


.stat-label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.modules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1rem;
  margin: 2rem 0;
}

.module-card {
  background: var(--bg-surface);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  transition: all var(--transition-base);
  position: relative;
}

.module-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--elevation-2-shadow);
  border-color: var(--color-primary);
}

.module-card.recommended {
  border-color: var(--color-accent-yellow);
  background: linear-gradient(135deg, rgba(255, 217, 61, 0.1), var(--bg-surface));
}

.module-tag {
  display: inline-flex;
  align-items: center;
  background: var(--color-accent-yellow);
  color: black;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
}

.module-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.module-meta span {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

/* Responsive design */
@media (max-width: 768px) {
  .desktop-layout { flex-direction: column; }
  .chat-area { height: 50vh; border-left: none; border-top: 2px solid var(--border-color); }
  
  #moeBuddyPanel {
    width: calc(100vw - 2rem);
    right: 1rem;
    left: 1rem;
  }
  
  /* Fix grid layouts on mobile */
  .grid {
    gap: 1rem;
  }
  
  /* Stack cards vertically on mobile */
  @media (max-width: 768px) {
    .md\:grid-cols-3,
    .md\:grid-cols-2 {
      grid-template-columns: 1fr !important;
    }
    
    .md\:col-span-2 {
      grid-column: span 1 !important;
    }
  }
  
  /* Better mobile spacing */
  .max-w-6xl {
    padding-left: 1rem;
    padding-right: 1rem;
  }
  
  .timeline {
    flex-direction: column;
    gap: 1rem;
  }
  
  .timeline::before {
    display: none;
  }
  
  .cards-grid {
    grid-template-columns: 1fr;
  }
  
  .score-display {
    top: 1rem;
    right: 1rem;
    padding: 0.75rem;
  }
}

/* Screen2 Interactive Learning Components */
.lesson-content {
  space-y: 2rem;
}

.lesson-section {
  background: var(--bg-surface);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: var(--elevation-1-shadow);
  backdrop-filter: blur(10px);
}

.lesson-section h3 {
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.lesson-section p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Note Taking Area */
.note-taking-area {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color-muted);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin: 1.5rem 0;
}

.notes-list {
  max-height: 200px;
  overflow-y: auto;
  space-y: 0.75rem;
}

.note-item {
  background: var(--bg-input);
  border: 1px solid var(--border-color-muted);
  border-radius: var(--radius-sm);
  padding: 1rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  transition: all var(--transition-base);
}

.note-item:hover {
  background: var(--bg-input-focus);
  border-color: var(--border-color);
}

/* Interactive Concept Grid */
.concept-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin: 2rem 0;
}

.concept-card {
  background: var(--bg-surface);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-base);
  box-shadow: var(--elevation-1-shadow);
  user-select: none;
}

.concept-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--elevation-2-shadow);
  border-color: var(--border-color-focus);
}

.concept-card.selected {
  border-color: var(--color-primary);
  background: rgba(79, 70, 229, 0.1);
  box-shadow: var(--elevation-2-shadow), 0 0 0 2px rgba(79, 70, 229, 0.2);
}

.concept-card.dragging {
  opacity: 0.7;
  transform: rotate(5deg) scale(0.95);
  z-index: 1000;
}

.concept-card h4 {
  color: var(--text-primary);
  font-weight: var(--font-weight-bold);
  margin-bottom: 0.5rem;
}

.concept-card p {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

/* Quiz Components */
.quiz-container {
  background: var(--bg-surface);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2rem;
  margin: 2rem 0;
  box-shadow: var(--elevation-1-shadow);
}

.quiz-option {
  background: var(--bg-input);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 1rem 1.5rem;
  cursor: pointer;
  transition: all var(--transition-base);
  margin-bottom: 0.75rem;
}

.quiz-option:hover {
  background: var(--bg-input-focus);
  border-color: var(--border-color-focus);
  transform: translateX(4px);
}

.quiz-option.selected {
  border-color: var(--color-primary);
  background: rgba(79, 70, 229, 0.1);
}

.quiz-option.correct {
  border-color: var(--color-success);
  background: rgba(16, 185, 129, 0.1);
}

.quiz-option.incorrect {
  border-color: var(--color-danger);
  background: rgba(239, 68, 68, 0.1);
}

.quiz-option span {
  color: var(--text-primary);
  font-weight: var(--font-weight-medium);
}

/* Function Match Areas */
.function-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
  margin: 2rem 0;
}

.function-box {
  background: var(--bg-input);
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: center;
  min-height: 120px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
}

.function-box.drag-over {
  border-color: var(--color-primary);
  background: rgba(79, 70, 229, 0.1);
  border-style: solid;
  transform: scale(1.02);
}

.function-box.filled {
  border-style: solid;
  border-color: var(--color-success);
  background: rgba(16, 185, 129, 0.1);
}

.function-box h4 {
  color: var(--text-primary);
  font-weight: var(--font-weight-bold);
  margin-bottom: 0.5rem;
}

.function-box p {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

/* Notebook Modal */
.notebook-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg-overlay);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
}

.notebook-modal {
  width: min(95vw, 800px);
  height: min(90vh, 600px);
  background: var(--bg-surface);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--elevation-3-shadow);
  backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

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

.notebook-header h3 {
  color: var(--text-primary);
  font-weight: var(--font-weight-bold);
}

.notebook-body {
  flex: 1;
  padding: 1.5rem;
  overflow-y: auto;
}

.close-btn {
  background: none;
  border: 2px solid var(--border-color);
  color: var(--text-secondary);
  width: 2rem;
  height: 2rem;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.close-btn:hover {
  border-color: var(--color-danger);
  color: var(--color-danger);
}

/* Add Note Modal */
.add-note-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg-overlay);
  backdrop-filter: blur(8px);
  z-index: 1001;
  display: none;
  align-items: center;
  justify-content: center;
}

.add-note-modal {
  width: min(90vw, 500px);
  background: var(--bg-surface);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--elevation-3-shadow);
  backdrop-filter: blur(20px);
  overflow: hidden;
}

.add-note-header {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border-color-muted);
}

.add-note-header h3 {
  color: var(--text-primary);
  font-weight: var(--font-weight-bold);
  margin: 0;
}

.add-note-body {
  padding: 1.5rem;
}

.add-note-footer {
  display: flex;
  justify-content: flex-end;
  gap: 1rem;
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-color-muted);
}

.note-textarea {
  width: 100%;
  height: 120px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 1rem;
  color: var(--text-primary);
  font-family: var(--font-family-primary);
  resize: vertical;
  transition: all var(--transition-base);
}

.note-textarea:focus {
  outline: none;
  border-color: var(--border-color-focus);
  background: var(--bg-input-focus);
  box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.1);
}

.note-textarea::placeholder {
  color: var(--text-muted);
}

/* Responsive adjustments for Screen2 */
@media (max-width: 768px) {
  .concept-grid {
    grid-template-columns: 1fr;
  }
  
  .function-grid {
    grid-template-columns: 1fr;
  }
  
  .lesson-section {
    padding: 1rem;
  }
  
  .notebook-modal {
    width: 95vw;
    height: 85vh;
  }
  
  .add-note-modal {
    width: 95vw;
  }
}

/* Screen3 Progress Dashboard Components */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.stat-card-detailed {
  background: var(--bg-surface);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: center;
  backdrop-filter: blur(20px);
  transition: all var(--transition-base);
}

.stat-card-detailed:hover {
  transform: translateY(-2px);
  box-shadow: var(--elevation-2-shadow);
  border-color: var(--border-color-focus);
}

/* Progress Ring Component */
.progress-ring {
  position: relative;
  width: 120px;
  height: 120px;
  margin: 0 auto;
}

.progress-ring svg {
  width: 100%;
  height: 100%;
  position: absolute;
  transform: rotate(-90deg);
}

.progress-ring .background {
  fill: none;
  stroke: var(--border-color);
  stroke-width: 8;
}

.progress-ring .progress {
  fill: none;
  stroke: var(--color-accent-blue);
  stroke-width: 8;
  stroke-linecap: round;
  transition: stroke-dashoffset 0.8s ease;
}

.progress-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}

/* Learning Path Component */
.learning-path {
  position: relative;
  padding: 1rem 0;
}

.learning-path::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--color-accent-blue), var(--color-accent-pink));
}

.learning-path-item {
  position: relative;
  padding-left: 3rem;
  margin-bottom: 2rem;
}

.learning-path-item::before {
  content: '';
  position: absolute;
  left: 14px;
  top: 0.25rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-accent-blue);
  border: 2px solid var(--bg-surface);
}

.learning-path-item.completed::before {
  background: var(--color-success);
}

.learning-path-item.current::before {
  background: var(--color-accent-yellow);
  box-shadow: 0 0 10px var(--color-accent-yellow);
}

/* Milestone Track Component */
.milestone-track {
  position: relative;
  padding: 1rem 0;
}

.milestone-track::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--color-success), var(--color-accent-blue));
}

.milestone-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 0;
  padding-left: 3rem;
  margin-bottom: 1rem;
}

.milestone-icon {
  position: absolute;
  left: 14px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--border-color);
  border: 2px solid var(--bg-surface);
  transition: all var(--transition-base);
}

.milestone-item.completed .milestone-icon {
  background: var(--color-success);
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.3);
}

.milestone-item:not(.completed) .milestone-icon {
  background: var(--border-color-muted);
}

.milestone-item.current .milestone-icon {
  background: var(--color-accent-yellow);
  animation: milestone-blink 2s infinite;
  box-shadow: 0 0 15px var(--color-accent-yellow);
}

@keyframes milestone-blink {
  0%, 50% { 
    opacity: 1; 
    box-shadow: 0 0 15px var(--color-accent-yellow);
  }
  25%, 75% { 
    opacity: 0.4; 
    box-shadow: 0 0 25px var(--color-accent-yellow);
  }
}

.streak-counter {
  background: linear-gradient(135deg, var(--color-success), var(--color-green-600));
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.streak-counter::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(45deg, transparent, rgba(255,255,255,0.1), transparent);
  transform: rotate(45deg);
  animation: shine 3s infinite;
}

@keyframes shine {
  0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
  100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

.achievement-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.achievement-card {
  background: var(--bg-surface);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: center;
  transition: all var(--transition-base);
  backdrop-filter: blur(20px);
}

.achievement-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--elevation-3-shadow);
  border-color: var(--border-color-focus);
}

.achievement-card.unlocked:hover {
  border-color: var(--color-accent-yellow);
  box-shadow: var(--elevation-3-shadow), 0 0 20px rgba(245, 158, 11, 0.3);
}

.achievement-card.locked {
  opacity: 0.5;
  border-color: var(--border-color-muted);
}

.achievement-card.locked:hover {
  transform: none;
  box-shadow: none;
}

.achievement-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  margin: 0 auto 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-accent-blue), var(--color-primary));
  border: 3px solid rgba(255,255,255,0.3);
}

.achievement-card.locked .achievement-icon {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.1);
}

.spaced-card {
  background: var(--bg-surface);
  border: 2px solid var(--color-accent-pink);
  border-radius: var(--radius-md);
  padding: 1rem;
  margin: 0.5rem 0;
  transition: all var(--transition-base);
}

.spaced-card:hover {
  transform: translateX(4px);
  box-shadow: var(--elevation-2-shadow), 0 0 20px rgba(236, 72, 153, 0.3);
}

.recent-activities {
  max-height: 400px;
  overflow-y: auto;
}

.activity-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  border-bottom: 1px solid var(--border-color-muted);
  transition: all var(--transition-base);
}

.activity-item:hover {
  background: var(--bg-input);
}

.activity-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-accent-pink), var(--color-accent-blue));
}

.activity-time {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

/* Custom scrollbar for Screen3 activities */
.recent-activities::-webkit-scrollbar {
  width: 6px;
}

.recent-activities::-webkit-scrollbar-track {
  background: var(--bg-input);
  border-radius: 3px;
}

.recent-activities::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, var(--color-accent-blue), var(--color-accent-pink));
  border-radius: 3px;
}

.recent-activities::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(135deg, var(--color-accent-pink), var(--color-accent-blue));
}

/* Level Badge Component */
.level-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--color-accent-yellow), var(--color-amber-600));
  color: var(--text-inverse);
  font-size: 2rem;
  font-weight: var(--font-weight-black);
  border-radius: 50%;
  box-shadow: var(--elevation-3-shadow), 0 0 20px rgba(245, 158, 11, 0.4);
  border: 3px solid rgba(255, 255, 255, 0.3);
  margin: 0 auto 1rem;
  position: relative;
  overflow: hidden;
}

.level-badge::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(45deg, transparent, rgba(255,255,255,0.2), transparent);
  transform: rotate(45deg);
  animation: badge-shine 3s infinite;
}

@keyframes badge-shine {
  0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
  100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

/* Screen3 responsive adjustments */
@media (max-width: 768px) {
  .achievement-grid { 
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); 
  }
  .stats-grid { 
    grid-template-columns: 1fr; 
  }
  
  .level-badge {
    width: 60px;
    height: 60px;
    font-size: 1.5rem;
  }
}

/* Screen4 Interactive Cell Biology Components */
.video-container {
  position: relative;
  width: 100%;
  height: 0;
  padding-bottom: 56.25%; /* 16:9 aspect ratio */
  background: var(--bg-surface-dark);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--elevation-2-shadow);
}

.video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.timeline-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}

.timeline-step {
  background: var(--bg-surface);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
  cursor: pointer;
  transition: all var(--transition-base);
  backdrop-filter: blur(20px);
}

.timeline-step:hover {
  border-color: var(--color-accent-blue);
  transform: translateY(-4px);
  box-shadow: var(--elevation-3-shadow);
}

.timeline-step.completed {
  border-color: var(--color-accent-yellow);
  background: rgba(255, 217, 61, 0.1);
}


/* Screen4 responsive adjustments */
@media (max-width: 768px) {
  .timeline-grid {
    grid-template-columns: 1fr;
  }
}