/* Modern User-Friendly Design System */
:root {
  /* Palapply Travel Theme - Sky Blue & Sunset Orange */
  --primary: #0EA5E9;
  --primary-dark: #0284C7;
  --primary-light: #38BDF8;
  --secondary: #F97316;
  --accent: #FBBF24;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;

  /* Neutral Colors */
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;

  /* Background Colors */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: --gray-50;
  --bg-accent: #f1f5f9;

  /* Text Colors */
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --text-muted: #9ca3af;
  --text-inverse: #ffffff;

  /* Surface Colors */
  --surface-primary: #ffffff;
  --surface-secondary: #f8fafc;
  --surface-elevated: #ffffff;

  /* Border Colors */
  --border-light: #e5e7eb;
  --border-medium: #d1d5db;
  --border-dark: #9ca3af;

  /* Shadow Colors */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #0EA5E9 0%, #38BDF8 100%);
  --gradient-secondary: linear-gradient(135deg, #F97316 0%, #FBBF24 100%);
  --gradient-accent: linear-gradient(135deg, #0EA5E9 0%, #F97316 100%);

  /* Spacing Scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow: 500ms ease;
}

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

html {
  height: 100%;
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  background: var(--bg-primary);
  min-height: 100vh;
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Layout Container */
.app-container {
  display: flex;
  min-height: 100vh;
  background: var(--bg-secondary);
}

/* Enhanced Sidebar */
.sidebar {
  width: 280px;
  background: var(--surface-primary);
  border-right: 1px solid var(--border-light);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  z-index: 100;
  position: relative;
}

.sidebar-header {
  padding: var(--space-8);
  border-bottom: 1px solid var(--border-light);
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  text-decoration: none;
  color: var(--text-primary);
  margin-bottom: var(--space-4);
}

.logo-icon {
  position: relative;
  width: 48px;
  height: 48px;
  flex-shrink: 0;
}

.logo-icon svg {
  border-radius: var(--radius-lg);
  transition: var(--transition-normal);
}

.logo:hover .logo-icon svg {
  transform: scale(1.05);
  filter: drop-shadow(0 10px 15px rgba(14, 165, 233, 0.3));
}

.logo-text {
  font-size: 1.75rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo-subtitle {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* Language Selector */
.language-selector select {
  width: 100%;
  background: var(--surface-secondary);
  border: 1px solid var(--border-light);
  color: var(--text-primary);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  padding: var(--space-2) var(--space-3);
  transition: var(--transition-fast);
}

.language-selector select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgb(99 102 241 / 0.1);
}

/* Navigation */
.nav-menu {
  flex: 1;
  padding: var(--space-6) 0;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition-fast);
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
  margin-bottom: var(--space-1);
}

.nav-item::before {
  content: '';
  position: absolute;
  left: var(--space-6);
  right: var(--space-6);
  bottom: 0;
  height: 1px;
  background: var(--border-light);
  opacity: 0;
  transition: var(--transition-fast);
}

.nav-item:hover {
  background: var(--bg-accent);
  color: var(--primary);
  transform: translateX(4px);
}

.nav-item.active {
  background: linear-gradient(90deg, rgb(99 102 241 / 0.1), transparent);
  color: var(--primary);
  font-weight: 600;
  border-left: 4px solid var(--primary);
}

.nav-item i {
  font-size: 1.125rem;
  width: 20px;
  text-align: center;
  transition: var(--transition-fast);
}

.nav-item:hover i,
.nav-item.active i {
  color: var(--primary);
}

/* Sidebar Footer */
.sidebar-footer {
  padding: var(--space-6);
  border-top: 1px solid var(--border-light);
  background: var(--surface-secondary);
}

.stats-card {
  background: var(--surface-primary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
}

.stats-card h4 {
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.stats-card h4 i {
  color: var(--primary);
}

.stat-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-3) 0;
  color: var(--text-secondary);
  font-size: 0.875rem;
  border-bottom: 1px solid var(--border-light);
}

.stat-item:last-child {
  border-bottom: none;
}

.stat-item span:last-child {
  color: var(--primary);
  font-weight: 600;
}

/* Security styles */
.admin-only {
  display: none !important;
}

.secure-input {
  font-family: 'Courier New', monospace;
  letter-spacing: 2px;
}

.loading-secure {
  pointer-events: none;
  opacity: 0.7;
}

/* Hide admin links from regular users */
a[href*="admin-support.html"] {
  display: none !important;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  position: fixed;
  top: var(--space-6);
  left: var(--space-6);
  z-index: 10000;
  background: var(--surface-primary);
  color: var(--text-primary);
  border: 1px solid var(--border-light);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  transition: var(--transition-fast);
}

.mobile-menu-toggle:hover {
  background: var(--bg-accent);
  color: var(--primary);
}

/* Main Content Area */
.main-content {
  flex: 1;
  overflow-y: auto;
  background: var(--bg-secondary);
}

/* Page Styles */
.page {
  display: none;
  padding: var(--space-10);
  max-width: 1400px;
  margin: 0 auto;
  animation: fadeIn 0.6s ease;
}

.page.active {
  display: block;
}

/* Dashboard Styles */
.dashboard-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.welcome-section {
  margin-bottom: var(--space-12);
}

.dashboard-title {
  font-size: 3.5rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
}

.dashboard-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.7;
}

/* Quick Stats */
.quick-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-8);
  margin-bottom: var(--space-16);
}

.stat-card {
  background: var(--surface-primary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  display: flex;
  align-items: center;
  gap: var(--space-6);
  transition: var(--transition-normal);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: var(--transition-normal);
}

.stat-card:hover::before {
  opacity: 1;
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary);
}

.stat-icon {
  width: 64px;
  height: 64px;
  background: var(--gradient-primary);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: white;
  flex-shrink: 0;
}

.stat-content {
  flex: 1;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: var(--space-2);
}

.stat-label {
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
  gap: var(--space-8);
}

.feature-card {
  background: var(--surface-primary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  cursor: pointer;
  transition: var(--transition-normal);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: var(--gradient-primary);
  border-radius: var(--radius-2xl);
  opacity: 0;
  transition: var(--transition-normal);
  z-index: -1;
}

.feature-card:hover::before {
  opacity: 0.1;
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-2xl);
  border-color: var(--primary);
}

.feature-icon {
  width: 72px;
  height: 72px;
  background: var(--gradient-primary);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: white;
  margin-bottom: var(--space-6);
  transition: var(--transition-normal);
}

.feature-card:hover .feature-icon {
  transform: scale(1.1);
}

.feature-content h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-4);
}

.feature-content p {
  color: var(--text-secondary);
  margin-bottom: var(--space-6);
  line-height: 1.6;
}

.feature-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.tag {
  background: rgb(99 102 241 / 0.1);
  color: var(--primary);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 500;
  border: 1px solid rgb(99 102 241 / 0.2);
}

/* Page Header */
.page-header {
  text-align: center;
  margin-bottom: var(--space-12);
}

.page-header h2 {
  font-size: 2.5rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
}

.page-header p {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Form Styles */
.form-container {
  background: var(--surface-primary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  margin-bottom: var(--space-8);
}

.application-form {
  padding: var(--space-10);
}

.form-section {
  margin-bottom: var(--space-10);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid var(--border-light);
}

.form-section:last-child {
  border-bottom: none;
  margin-bottom: 0;
}

.form-section h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.form-section h3 i {
  color: var(--primary);
  font-size: 1.25rem;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-6);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.form-label {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.form-input {
  padding: var(--space-4);
  border: 2px solid var(--border-light);
  border-radius: var(--radius-lg);
  font-size: 1rem;
  background: var(--surface-primary);
  color: var(--text-primary);
  transition: var(--transition-fast);
  font-family: inherit;
}

.form-input::placeholder {
  color: var(--text-muted);
}

.form-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgb(99 102 241 / 0.1);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
  font-family: inherit;
  line-height: 1.6;
}

/* Select Styling */
select.form-input {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
  background-position: right 0.75rem center;
  background-repeat: no-repeat;
  background-size: 1.5em 1.5em;
  padding-right: 2.5rem;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
}

select.form-input option {
  background-color: var(--surface-primary);
  color: var(--text-primary);
  padding: var(--space-2) var(--space-3);
}

/* Checkbox Grid */
.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-4);
}

.checkbox-card {
  display: block;
  cursor: pointer;
}

.checkbox-card input[type="checkbox"] {
  display: none;
}

.checkbox-content {
  background: var(--surface-secondary);
  border: 2px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  text-align: center;
  transition: var(--transition-normal);
  position: relative;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
}

.checkbox-card:hover .checkbox-content {
  border-color: var(--primary);
  background: rgb(99 102 241 / 0.05);
  transform: translateY(-2px);
}

.checkbox-card input:checked + .checkbox-content {
  border-color: var(--primary);
  background: rgb(99 102 241 / 0.1);
  box-shadow: var(--shadow-lg);
}

.checkbox-content i {
  font-size: 2rem;
  color: var(--primary);
  margin-bottom: var(--space-2);
}

.checkbox-content strong {
  color: var(--text-primary);
  font-weight: 600;
  font-size: 1rem;
}

.checkbox-content span {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* Button Styles */
.btn {
  padding: var(--space-4) var(--space-8);
  border: none;
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition-normal);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  text-decoration: none;
  font-family: inherit;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

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

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-md);
  border: 2px solid transparent;
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.btn-secondary {
  background: var(--surface-primary);
  color: var(--text-primary);
  border: 2px solid var(--border-medium);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--bg-accent);
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-1px);
}

.btn-danger {
  background: var(--danger);
  color: white;
  border: 2px solid transparent;
}

.btn-danger:hover:not(:disabled) {
  background: #dc2626;
  transform: translateY(-1px);
}

.btn-large {
  padding: var(--space-5) var(--space-12);
  font-size: 1.125rem;
  border-radius: var(--radius-xl);
}

.btn-small {
  padding: var(--space-2) var(--space-4);
  font-size: 0.875rem;
  border-radius: var(--radius-md);
}

/* Calculator Styles */
.calculator-container {
  background: var(--surface-primary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-2xl);
  padding: var(--space-10);
  box-shadow: var(--shadow-lg);
  margin-bottom: var(--space-8);
}

.calculator-tabs {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-10);
  background: var(--bg-accent);
  border-radius: var(--radius-xl);
  padding: var(--space-2);
}

.tab-btn {
  flex: 1;
  padding: var(--space-4) var(--space-6);
  border: none;
  background: transparent;
  cursor: pointer;
  font-weight: 600;
  color: var(--text-secondary);
  border-radius: var(--radius-lg);
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-size: 0.95rem;
}

.tab-btn.active {
  background: var(--surface-primary);
  color: var(--primary);
  box-shadow: var(--shadow-md);
}

.tab-btn:hover:not(.active) {
  color: var(--text-primary);
  background: rgb(255 255 255 / 0.5);
}

.calculator-section {
  display: none;
}

.calculator-section.active {
  display: block;
  animation: fadeIn 0.4s ease;
}

.calculator-header {
  text-align: center;
  margin-bottom: var(--space-8);
}

.calculator-header h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
}

.calculator-header p {
  color: var(--text-secondary);
  font-size: 1rem;
}

/* Course and Semester Entries */
.courses-container,
.semesters-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.course-entry,
.semester-entry {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr auto;
  gap: var(--space-4);
  align-items: center;
  padding: var(--space-6);
  background: var(--bg-accent);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
}

.btn-remove-course,
.btn-remove-semester {
  background: var(--danger);
  color: white;
  border: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  cursor: pointer;
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
  flex-shrink: 0;
}

.btn-remove-course:hover,
.btn-remove-semester:hover {
  background: #dc2626;
  transform: scale(1.05);
}

.calculator-actions {
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
}

/* Results Section */
.results-section {
  background: var(--bg-accent);
  border: 1px solid var(--border-light);
  padding: var(--space-10);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-md);
}

.result-card h3 {
  font-size: 1.5rem;
  margin-bottom: var(--space-6);
  color: var(--text-primary);
  text-align: center;
}

.gpa-display,
.converted-grade,
.converted-amount {
  font-size: 4rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-align: center;
  margin-bottom: var(--space-4);
  line-height: 1;
}

.gpa-grade,
.conversion-note,
.conversion-rate {
  text-align: center;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--space-6);
}

.result-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.detail-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-4);
  background: var(--surface-primary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  font-weight: 500;
}

.detail-item span:first-child {
  color: var(--text-secondary);
}

.detail-item span:last-child {
  color: var(--primary);
  font-weight: 600;
}

/* Currency Converter Specific */
.salary-comparison {
  margin-top: var(--space-8);
  background: var(--surface-primary);
  padding: var(--space-8);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-light);
}

.salary-comparison h4 {
  color: var(--text-primary);
  margin-bottom: var(--space-6);
  text-align: center;
  font-size: 1.25rem;
  font-weight: 700;
}

.comparison-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
}

.comparison-item {
  background: var(--bg-accent);
  border: 2px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  text-align: center;
  transition: var(--transition-fast);
}

.comparison-item.active {
  border-color: var(--primary);
  background: rgb(99 102 241 / 0.1);
  box-shadow: var(--shadow-md);
}

.comparison-label {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: var(--space-2);
  font-weight: 500;
}

.comparison-value {
  color: var(--text-primary);
  font-size: 1.125rem;
  font-weight: 600;
}

.comparison-item.active .comparison-value {
  color: var(--primary);
}

/* Modal Styles */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgb(0 0 0 / 0.7);
  z-index: 1000;
  backdrop-filter: blur(8px);
  padding: var(--space-4);
  box-sizing: border-box;
}

.modal.active {
  display: flex;
  align-items: center;
  justify-content: center;
  animation: modalFadeIn 0.3s ease;
}

.modal-content {
  background: var(--surface-primary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-2xl);
  max-width: 900px;
  max-height: 80vh;
  width: 90%;
  box-shadow: var(--shadow-2xl);
  display: flex;
  flex-direction: column;
  animation: modalSlideIn 0.4s ease;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-8);
  border-bottom: 1px solid var(--border-light);
  background: var(--gradient-primary);
  color: white;
  border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
}

.modal-title {
  margin: 0;
  color: white;
  font-size: 1.5rem;
  font-weight: 700;
}

.modal-close {
  background: rgb(255 255 255 / 0.2);
  border: none;
  color: white;
  font-size: 1.25rem;
  cursor: pointer;
  padding: var(--space-3);
  border-radius: var(--radius-lg);
  transition: var(--transition-fast);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close:hover {
  background: rgb(255 255 255 / 0.3);
  transform: scale(1.05);
}

.modal-body {
  padding: var(--space-8);
  overflow-y: auto;
  flex: 1;
}

.document-content {
  white-space: pre-wrap;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.6;
  background: var(--bg-accent);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  margin-bottom: var(--space-8);
  max-height: 400px;
  overflow-y: auto;
  color: var(--text-primary);
}

.modal-actions {
  display: flex;
  gap: var(--space-4);
  justify-content: flex-end;
  flex-wrap: wrap;
}

/* Saved Documents Styles */
.generations-grid {
  display: grid;
  gap: var(--space-8);
}

.generation-section {
  background: var(--surface-primary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.section-title {
  background: var(--gradient-primary);
  color: white;
  padding: var(--space-6) var(--space-8);
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.generation-card {
  padding: var(--space-8);
  border-bottom: 1px solid var(--border-light);
  transition: var(--transition-fast);
}

.generation-card:hover {
  background: var(--bg-accent);
}

.generation-card:last-child {
  border-bottom: none;
}

.generation-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-6);
}

.generation-info h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-3);
  color: var(--text-primary);
}

.generation-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.generation-actions {
  display: flex;
  gap: var(--space-3);
  flex-shrink: 0;
}

.generation-preview {
  background: var(--bg-accent);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--text-secondary);
  border: 1px solid var(--border-light);
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: var(--space-20);
  color: var(--text-secondary);
}

.empty-icon {
  font-size: 4rem;
  margin-bottom: var(--space-8);
  opacity: 0.5;
  color: var(--primary);
}

.empty-title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: var(--space-4);
  color: var(--text-primary);
}

/* Error Messages */
.error-message {
  background: rgb(239 68 68 / 0.1);
  color: var(--danger);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  border: 1px solid rgb(239 68 68 / 0.2);
  font-size: 0.875rem;
  display: none;
}

/* Loading Spinner */
.spinner {
  width: 24px;
  height: 24px;
  border: 2px solid rgb(255 255 255 / 0.3);
  border-top: 2px solid white;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

/* Support Styles */
.support-container {
  background: var(--surface-primary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.support-tabs {
  display: flex;
  background: var(--bg-accent);
  border-bottom: 1px solid var(--border-light);
}

.support-tab-btn {
  flex: 1;
  padding: var(--space-6) var(--space-8);
  border: none;
  background: transparent;
  cursor: pointer;
  font-weight: 600;
  color: var(--text-secondary);
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-size: 0.95rem;
}

.support-tab-btn.active {
  background: var(--surface-primary);
  color: var(--primary);
  box-shadow: 0 -2px 0 var(--primary);
}

.support-tab-btn:hover:not(.active) {
  background: rgb(255 255 255 / 0.5);
  color: var(--text-primary);
}

.support-section {
  display: none;
  padding: var(--space-10);
}

.support-section.active {
  display: block;
  animation: fadeIn 0.4s ease;
}

/* FAQ Styles */
.faq-container h3 {
  color: var(--text-primary);
  margin-bottom: var(--space-8);
  font-size: 1.5rem;
  text-align: center;
  font-weight: 700;
}

.faq-item {
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  margin-bottom: var(--space-4);
  overflow: hidden;
  transition: var(--transition-fast);
  background: var(--surface-primary);
}

.faq-item:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.faq-question {
  width: 100%;
  padding: var(--space-6) var(--space-8);
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 1.125rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition-fast);
  text-align: left;
}

.faq-question:hover {
  background: var(--bg-accent);
}

.faq-question i {
  transition: var(--transition-fast);
  color: var(--primary);
  font-size: 1rem;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  background: var(--bg-accent);
}

.faq-answer p {
  padding: var(--space-6) var(--space-8);
  margin: 0;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Contact and Conversation Styles */
.contact-container h3,
.conversations-header h3 {
  color: var(--text-primary);
  margin-bottom: var(--space-4);
  font-size: 1.5rem;
  text-align: center;
  font-weight: 700;
}

.contact-container > p {
  text-align: center;
  color: var(--text-secondary);
  margin-bottom: var(--space-8);
  font-size: 1.125rem;
}

.contact-form {
  max-width: 600px;
  margin: 0 auto;
}

.conversations-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-8);
}

.conversations-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.conversation-card {
  background: var(--bg-accent);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  transition: var(--transition-fast);
}

.conversation-card:hover {
  background: var(--surface-primary);
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.conversation-info h4 {
  color: var(--text-primary);
  font-size: 1.125rem;
  margin-bottom: var(--space-3);
  font-weight: 600;
}

.conversation-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-4);
}

.conversation-status {
  font-weight: 600;
  text-transform: capitalize;
}

.conversation-preview {
  background: var(--surface-primary);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--text-secondary);
  border: 1px solid var(--border-light);
}

/* Pricing Styles */
.pricing-modal {
  max-width: 1000px;
  width: 95%;
}

.pricing-currency-selector {
  text-align: center;
  margin-bottom: var(--space-8);
  padding: var(--space-4);
  background: var(--bg-accent);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-light);
}

.pricing-currency-selector label {
  color: var(--text-primary);
  font-weight: 600;
  margin-right: var(--space-3);
}

.pricing-plans {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-6);
  margin: var(--space-6) 0;
}

.pricing-plans .single-plan {
  max-width: 400px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--surface-primary);
  border: 2px solid var(--border-light);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  position: relative;
  transition: var(--transition-normal);
  overflow: hidden;
}

.pricing-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
}

.pricing-card.popular {
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
}

.popular-badge {
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-primary);
  color: white;
  padding: var(--space-2) var(--space-6);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  box-shadow: var(--shadow-md);
}

.plan-header {
  text-align: center;
  margin-bottom: var(--space-6);
}

.plan-header h3 {
  color: var(--text-primary);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--space-4);
}

.plan-price {
  font-size: 2.5rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-2);
}

.plan-period {
  font-size: 1rem;
  color: var(--text-secondary);
  font-weight: 500;
  display: block;
  margin-top: var(--space-2);
}

.plan-features {
  margin-bottom: var(--space-8);
}

.feature-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-light);
}

.feature-item:last-child {
  border-bottom: none;
}

.feature-item i {
  color: var(--success);
  font-size: 1.125rem;
  width: 20px;
  text-align: center;
}

/* Animations */
@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes modalFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(-50px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-dark);
}

/* Enhanced Button Interactions */
.btn {
  position: relative;
  overflow: hidden;
  transition: all var(--transition-normal);
}

.btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.btn:active:not(:disabled) {
  transform: translateY(0);
  transition: var(--transition-fast);
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transition: width 0.6s, height 0.6s;
  transform: translate(-50%, -50%);
  z-index: 0;
}

.btn:active::before {
  width: 300px;
  height: 300px;
}

.btn > * {
  position: relative;
  z-index: 1;
}

/* Improved Modal Animations */
@keyframes modalFadeIn {
  from { 
    opacity: 0; 
    backdrop-filter: blur(0px);
  }
  to { 
    opacity: 1; 
    backdrop-filter: blur(8px);
  }
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(-50px) scale(0.9);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* Sound Control Styles */
.control-buttons .btn {
  width: 40px;
  height: 40px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  }

  .dashboard-title {
    font-size: 2.75rem;
  }

  .page {
    padding: var(--space-8);
  }

  .modal {
    padding: var(--space-2);
  }

  .modal-content {
    width: 95%;
    max-height: 95vh;
    margin: 0;
  }
}

@media (max-width: 768px) {
  .app-container {
    flex-direction: column;
  }

  .sidebar {
    position: fixed;
    top: 0;
    left: -280px;
    height: 100vh;
    width: 280px;
    transition: left 0.3s ease;
    z-index: 1000;
    box-shadow: var(--shadow-2xl);
  }

  .sidebar.mobile-open {
    left: 0;
  }

  .mobile-menu-toggle {
    display: block;
  }

  .main-content {
    width: 100%;
    padding-top: 80px;
  }

  .page {
    padding: var(--space-4);
  }

  .dashboard-title {
    font-size: 2rem;
    flex-direction: column;
    gap: var(--space-2);
  }

  .quick-stats {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .checkbox-grid {
    grid-template-columns: 1fr;
  }

  .calculator-tabs {
    flex-direction: column;
    gap: var(--space-2);
  }

  .tab-btn {
    padding: var(--space-3);
    font-size: 0.9rem;
  }

  .course-entry,
  .semester-entry {
    grid-template-columns: 1fr;
    gap: var(--space-3);
    padding: var(--space-4);
  }

  .calculator-actions {
    flex-direction: column;
    gap: var(--space-3);
  }

  .result-details {
    grid-template-columns: 1fr;
  }

  .generation-header {
    flex-direction: column;
    gap: var(--space-4);
  }

  .generation-actions {
    align-self: flex-start;
    flex-wrap: wrap;
  }

  .modal-content {
    width: 95%;
    max-height: 90vh;
    margin: var(--space-2);
  }

  .modal-actions {
    flex-direction: column;
    gap: var(--space-3);
  }

  .support-tabs {
    flex-direction: column;
  }

  .conversations-header {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }

  .pricing-plans {
    grid-template-columns: 1fr;
  }

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

  /* Better form styling on mobile */
  .form-input,
  .form-textarea {
    font-size: 16px; /* Prevents zoom on iOS */
    padding: var(--space-4);
  }

  /* Improve modal experience on mobile */
  .auth-modal-content {
    width: 100%;
    max-width: 400px;
    margin: var(--space-2);
  }

  .auth-form {
    gap: var(--space-4);
  }

  .auth-submit-btn {
    padding: var(--space-4);
    font-size: 1rem;
  }

  /* Better touch targets */
  .nav-item {
    padding: var(--space-5) var(--space-6);
    font-size: 1rem;
  }

  .btn {
    min-height: 44px; /* iOS touch target minimum */
    padding: var(--space-4) var(--space-6);
  }

  .btn-small {
    min-height: 36px;
    padding: var(--space-3) var(--space-4);
  }
}

@media (max-width: 480px) {
  .page {
    padding: var(--space-4);
  }

  .dashboard-title {
    font-size: 2rem;
  }

  .page-header h2 {
    font-size: 2rem;
  }

  .stat-card {
    flex-direction: column;
    text-align: center;
  }

  .feature-card {
    padding: var(--space-6);
  }

  .btn-large {
    padding: var(--space-4) var(--space-8);
    font-size: 1rem;
  }

  .gpa-display,
  .converted-grade,
  .converted-amount {
    font-size: 2.5rem;
  }

  .comparison-grid {
    grid-template-columns: 1fr;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --border-light: #9ca3af;
    --border-medium: #6b7280;
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Focus styles for accessibility */
*:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* Print styles */
@media print {
  .sidebar,
  .mobile-menu-toggle {
    display: none;
  }

  .main-content {
    width: 100%;
  }

  .page {
    display: block !important;
    padding: 0;
  }

  body {
    background: white;
    color: black;
  }

  .btn {
    display: none;
  }
}

/* Authentication Styles */
.auth-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-4);
  border-top: 1px solid var(--border-light);
  margin-top: var(--space-4);
}

.auth-btn {
  padding: var(--space-3) var(--space-4);
  border: none;
  border-radius: var(--radius-lg);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}

.login-btn {
  background: var(--primary);
  color: white;
}

.login-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

.signup-btn {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.signup-btn:hover {
  background: var(--primary);
  color: white;
  transform: translateY(-1px);
}

.user-menu-container {
  padding: var(--space-4);
  border-top: 1px solid var(--border-light);
  margin-top: var(--space-4);
}

.user-info {
  margin-bottom: var(--space-4);
}

.welcome-text {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
  font-size: 0.9rem;
}

.plan-status {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.plan-badge {
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-md);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.plan-free {
  background: var(--surface-secondary);
  color: var(--text-secondary);
}

.plan-pro {
  background: var(--gradient-primary);
  color: white;
}

.upgrade-btn {
  padding: var(--space-1) var(--space-2);
  background: var(--primary);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
}

.upgrade-btn:hover {
  background: var(--primary-dark);
}

.logout-btn {
  width: 100%;
  padding: var(--space-3);
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}

.logout-btn:hover {
  background: var(--surface-secondary);
  color: var(--text-primary);
}

/* Auth Modal Styles */
.auth-modal-content {
  max-width: 450px;
  width: 90%;
}

.auth-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--border-light);
}

.auth-modal-header h2 {
  margin: 0;
  color: var(--text-primary);
  font-size: 1.5rem;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.auth-form .form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.auth-form label {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.9rem;
}

.auth-form input {
  padding: var(--space-4);
  border: 2px solid var(--border-light);
  border-radius: var(--radius-lg);
  font-size: 1rem;
  background: var(--surface-primary);
  color: var(--text-primary);
  transition: var(--transition-fast);
}

.auth-form input:focus {
  border-color: var(--primary);
  outline: none;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.auth-error {
  color: var(--error);
  font-size: 0.875rem;
  margin-top: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: rgba(239, 68, 68, 0.1);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--error);
}

.auth-submit-btn {
  padding: var(--space-4);
  background: var(--gradient-primary);
  color: white;
  border: none;
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition-fast);
  margin-top: var(--space-2);
}

.auth-submit-btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.auth-submit-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.auth-switch {
  text-align: center;
  margin-top: var(--space-4);
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.auth-switch a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
}

.auth-switch a:hover {
  text-decoration: underline;
}

/* Notification Styles */
.notification {
  position: fixed;
  top: 20px;
  right: 20px;
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  box-shadow: var(--shadow-lg);
  border-left: 4px solid;
  z-index: 10000;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  max-width: 400px;
  animation: slideInRight 0.3s ease;
}

.notification-success {
  border-left-color: #10b981;
  color: #065f46;
}

.notification-error {
  border-left-color: #ef4444;
  color: #991b1b;
}

.notification-info {
  border-left-color: #3b82f6;
  color: #1e40af;
}

.notification-close {
  margin-left: auto;
  background: none;
  border: none;
  font-size: 0.875rem;
  color: inherit;
  opacity: 0.7;
  cursor: pointer;
  padding: var(--space-1);
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}

.notification-close:hover {
  opacity: 1;
  background: rgba(0, 0, 0, 0.1);
}

@keyframes slideInRight {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* Utility Classes */
.text-center { text-align: center; }