frontend/src/index.css

@import url('https://api.fontshare.com/v2/css?f[]=satoshi@300,400,500,600,700,800,900&display=swap');
@import "tailwindcss";

@theme {
  --color-medical-primary: #ff6b6b;
  --color-medical-secondary: #4ecdc4;
  --color-medical-dark: #262730;
  --color-medical-light: #f8f9fa;
  
  --font-family-satoshi: 'Satoshi', system-ui, sans-serif;
}

* {
  font-family: 'Satoshi', system-ui, sans-serif;
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background-color: #ffffff;
  color: #262730;
  min-height: 100vh;
  line-height: 1.6;
  margin: 0;
  padding: 0;
}

.navbar {
  background: linear-gradient(90deg, #ff6b6b, #4ecdc4);
  padding: 1rem 2rem;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.nav-container {
  display: flex;
  justify-content: center;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
}

.logo {
  display: flex;
  align-items: center;
  color: white;
  font-size: 1.5rem;
  font-weight: 700;
  text-decoration: none;
  gap: 0.5rem;
  transition: transform 0.2s ease;
  z-index: 1001;
  height: 100%;
}

.logo:hover {
  transform: scale(1.05);
}

.nav-menu {
  display: none;
  list-style: none;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
  align-items: center;
  height: 100%;
}

@media (min-width: 1024px) {
  .nav-menu {
    display: flex;
    gap: 2rem;
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .nav-menu {
    display: flex;
    gap: 1rem;
  }
  
  .nav-item {
    padding: 0.4rem 0.8rem;
    font-size: 0.9rem;
  }
}

.nav-item {
  color: white;
  padding: 0.75rem 1.25rem;
  border-radius: 25px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 500;
  display: flex;
  align-items: center;
  height: fit-content;
  white-space: nowrap;
  font-size: 0.95rem;
  border: 2px solid transparent;
}

.nav-item:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.3);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.nav-item.active {
  background: rgba(255, 255, 255, 0.35);
  font-weight: 600;
  border-color: rgba(255, 255, 255, 0.5);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.main-content {
  padding: 1rem;
  width: 100%;
  margin: 0;
  flex: 1;
}

.welcome-section {
  text-align: center;
  padding: 2rem 1rem;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border-radius: 0;
  margin: 0 0 2rem 0;
  width: 100%;
}

.welcome-section h1 {
  font-size: 2rem;
  margin-bottom: 1rem;
  font-weight: 700;
}

@media (min-width: 640px) {
  .welcome-section h1 {
    font-size: 2.5rem;
  }
}

@media (min-width: 1024px) {
  .welcome-section h1 {
    font-size: 3rem;
  }
}

.welcome-section p {
  font-size: 1.1rem;
  opacity: 0.9;
}

@media (min-width: 640px) {
  .welcome-section p {
    font-size: 1.25rem;
  }
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin: 2rem 1rem;
  padding: 0;
}

@media (max-width: 768px) {
  .features-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
    margin: 1rem;
  }
  
  .main-content {
    padding: 0.5rem;
  }
  
  .welcome-section {
    padding: 1.5rem 1rem;
    margin: 0 0 1rem 0;
  }
  
  .navbar {
    padding: 0.75rem 1rem;
  }
  
  .nav-container {
    padding: 0;
  }
  
  .logo {
    font-size: 1.25rem;
  }
  
  .feature-card {
    margin: 0;
    padding: 1.25rem;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin: 2rem 1.5rem;
  }
  
  .main-content {
    padding: 1.5rem;
  }
}

@media (min-width: 1025px) {
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin: 2rem 2rem;
    max-width: none;
  }
  
  .main-content {
    padding: 2rem;
  }
  
  .navbar {
    padding: 1.25rem 2rem;
  }
  
  .nav-container {
    padding: 0;
    max-width: 1400px;
  }
  
  .logo {
    font-size: 1.6rem;
  }
  
  .nav-menu {
    gap: 2.5rem;
  }
  
  .nav-item {
    padding: 0.7rem 1.4rem;
    font-size: 1rem;
  }
}

.feature-card {
  background: linear-gradient(145deg, #ffffff, #f8fafc);
  padding: 2rem;
  border-radius: 16px;
  box-shadow: 
    0 4px 20px rgba(0,0,0,0.08),
    0 1px 3px rgba(0,0,0,0.05),
    inset 0 1px 0 rgba(255,255,255,0.8);
  text-align: center;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid #e5e7eb;
  width: 100%;
  position: relative;
  overflow: hidden;
}

.feature-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 
    0 20px 40px rgba(0,0,0,0.15),
    0 4px 16px rgba(0,0,0,0.08),
    inset 0 1px 0 rgba(255,255,255,0.9);
  border-color: #d1d5db;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #10b981, #3b82f6, #8b5cf6, #f59e0b);
  opacity: 0;
  transition: opacity 0.3s ease;
}

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

.feature-card i {
  font-size: 3.5rem;
  background: linear-gradient(135deg, #10b981, #3b82f6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1.5rem;
  display: block;
}

.feature-card h3 {
  font-size: 1.4rem;
  margin-bottom: 1.25rem;
  color: #1f2937;
  font-weight: 700;
  background: linear-gradient(135deg, #1f2937, #4b5563);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.feature-card p {
  color: #6b7280;
  line-height: 1.7;
  font-size: 0.95rem;
  font-weight: 400;
}

.iframe-container {
  width: 100%;
  height: calc(100vh - 120px);
  margin: 0;
  padding: 0;
  border: none;
  overflow: hidden;
}

.iframe-container iframe {
  width: 100%;
  height: 100%;
  border: none;
  margin: 0;
  padding: 0;
  display: block;
}

.iframe-page {
  margin: 0;
  padding: 0;
  min-height: calc(100vh - 120px);
}

.iframe-page .main-content {
  padding: 0;
  margin: 0;
  max-width: none;
  width: 100%;
}

.App {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  width: 100%;
  margin: 0;
  padding: 0;
}

.page {
  display: none;
}

.page.active {
  display: block;
}

.footer {
  background: #262730;
  color: white;
  padding: 2rem;
  text-align: center;
  margin-top: auto;
}

.footer-content {
  width: 100%;
  margin: 0;
  padding: 0;
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.footer-links a {
  color: #ccc;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: #ff6b6b;
}

.auth-section {
  display: flex;
  align-items: center;
  gap: 1rem;
  position: absolute;
  right: 0;
}

/* History Page Styles */
.history-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 2rem;
}

.history-section {
  background: white;
  border-radius: 15px;
  padding: 2rem;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  border: 1px solid #e5e7eb;
}

.history-section h3 {
  margin-bottom: 1rem;
  color: #262730;
  font-size: 1.25rem;
  font-weight: 600;
}

.history-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.history-info {
  background: #f8fafc;
  border-radius: 10px;
  padding: 1.5rem;
  border-left: 4px solid #3b82f6;
}

.history-info p {
  margin: 0.75rem 0;
  color: #374151;
  font-size: 0.95rem;
}

.history-note {
  background: #fef3c7;
  border-radius: 10px;
  padding: 1.5rem;
  border-left: 4px solid #f59e0b;
}

.history-note p {
  margin: 0.5rem 0;
  color: #92400e;
  font-size: 0.9rem;
}

.history-instructions {
  margin-top: 3rem;
  padding: 2rem;
  background: white;
  border-radius: 15px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  border: 1px solid #e5e7eb;
}

.history-instructions h3 {
  margin-bottom: 1.5rem;
  color: #262730;
  font-size: 1.25rem;
  font-weight: 600;
}

.instruction-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.instruction-card {
  background: #f8fafc;
  border-radius: 10px;
  padding: 1.5rem;
  border: 1px solid #e2e8f0;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.instruction-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

.instruction-card h4 {
  margin-bottom: 0.75rem;
  color: #1e293b;
  font-size: 1rem;
  font-weight: 600;
}

.instruction-card p {
  margin: 0;
  color: #475569;
  font-size: 0.9rem;
  line-height: 1.5;
}

.instruction-card code {
  background: #e2e8f0;
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-family: 'Courier New', monospace;
  font-size: 0.85rem;
  color: #1e293b;
}

/* Enhanced History Styles */
.history-stats {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.history-stats .stat {
  background: #f1f5f9;
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 500;
  color: #475569;
  border: 1px solid #e2e8f0;
}

.history-loading {
  text-align: center;
  padding: 3rem;
  background: #f8fafc;
  border-radius: 15px;
  border: 2px dashed #cbd5e1;
  margin: 2rem 0;
}

.history-loading p {
  margin: 0.5rem 0;
  color: #64748b;
}

.history-entries {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.history-entry {
  background: white;
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  border: 1px solid #e5e7eb;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.history-entry:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

.pregnancy-entry {
  border-left: 4px solid #ec4899;
}

.classification-entry {
  border-left: 4px solid #3b82f6;
}

.entry-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.entry-time {
  font-size: 0.85rem;
  color: #6b7280;
  font-weight: 500;
}

.entry-result {
  font-weight: 600;
  font-size: 1rem;
}

.entry-confidence {
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.25rem 0.75rem;
  background: rgba(255,255,255,0.8);
  border-radius: 15px;
  border: 1px solid currentColor;
}

.entry-details {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.input-summary, .image-info {
  font-size: 0.9rem;
  color: #374151;
}

.probabilities {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.prob-high, .prob-low {
  padding: 0.25rem 0.75rem;
  border-radius: 12px;
  font-size: 0.85rem;
  font-weight: 500;
}

.prob-high {
  background: #fef2f2;
  color: #dc2626;
  border: 1px solid #fecaca;
}

.prob-low {
  background: #f0fdf4;
  color: #16a34a;
  border: 1px solid #bbf7d0;
}

.image-preview {
  margin-bottom: 1rem;
  text-align: center;
}

.ultrasound-image {
  max-width: 200px;
  max-height: 150px;
  border-radius: 8px;
  border: 2px solid #e2e8f0;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  object-fit: cover;
  transition: transform 0.2s ease;
}

.ultrasound-image:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}

/* Delete Button */
.delete-btn {
  background: #fee2e2;
  border: 1px solid #fecaca;
  border-radius: 6px;
  padding: 0.25rem 0.5rem;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.2s ease;
  color: #dc2626;
}

.delete-btn:hover {
  background: #fecaca;
  transform: scale(1.05);
}

/* Enhanced Fetal Image Cards */
.fetal-image-card {
  margin-bottom: 1.5rem;
}

.image-card {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  transition: transform 0.3s ease;
}

.image-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.2);
}

.ultrasound-image-large {
  width: 100%;
  max-width: 400px;
  height: auto;
  max-height: 300px;
  object-fit: contain;
  border-radius: 12px;
  background-color: #f8f9fa;
}

.image-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,0.8));
  color: white;
  padding: 1rem;
  border-radius: 0 0 12px 12px;
}

.image-title {
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.image-confidence {
  font-size: 0.875rem;
  opacity: 0.9;
}

.classification-details {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.predictions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.prediction-card {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 0.75rem;
  text-align: center;
  transition: transform 0.2s ease;
}

.prediction-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.prediction-rank {
  font-size: 0.75rem;
  color: #6b7280;
  font-weight: 500;
  margin-bottom: 0.25rem;
}

.prediction-class {
  font-weight: 600;
  color: #374151;
  font-size: 0.875rem;
  margin-bottom: 0.25rem;
}

.prediction-percentage {
  font-weight: 700;
  color: #3b82f6;
  font-size: 1rem;
}

.top-predictions {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.prediction-item {
  display: inline-block;
  background: #f1f5f9;
  padding: 0.25rem 0.75rem;
  border-radius: 8px;
  font-size: 0.85rem;
  margin-right: 0.5rem;
  margin-bottom: 0.25rem;
  color: #475569;
  border: 1px solid #e2e8f0;
}

.no-data {
  text-align: center;
  padding: 2rem;
  background: #f9fafb;
  border-radius: 10px;
  border: 2px dashed #d1d5db;
  color: #6b7280;
}

.no-data p {
  margin: 0.5rem 0;
}

.history-info-footer {
  margin-top: 3rem;
  padding: 1.5rem;
  background: #f8fafc;
  border-radius: 10px;
  border: 1px solid #e2e8f0;
  text-align: center;
}

.history-info-footer p {
  margin: 0.5rem 0;
  font-size: 0.9rem;
  color: #64748b;
}

@media (max-width: 768px) {
  .entry-header {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .history-stats {
    justify-content: center;
  }
  
  .probabilities {
    justify-content: center;
  }
}

@media (max-width: 768px) {
  .history-container {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .history-section {
    padding: 1.5rem;
  }
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 8px;
  transition: all 0.3s ease;
  z-index: 1002;
}

.mobile-menu-toggle:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: scale(1.1);
}

@media (max-width: 1023px) {
  .mobile-menu-toggle {
    display: block;
  }
}

.auth-required {
  text-align: center;
  padding: 3rem 1rem;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  margin: 0;
  width: 100%;
  min-height: 50vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.auth-required h2 {
  margin-bottom: 1rem;
  font-size: 2rem;
}

.auth-required p {
  font-size: 1.1rem;
  opacity: 0.9;
  margin-bottom: 2rem;
}

.mobile-menu {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: linear-gradient(135deg, #ff6b6b, #4ecdc4);
  padding: 1rem 0;
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
  width: 100%;
  z-index: 1000;
  transform: translateY(-10px);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  backdrop-filter: blur(10px);
}

.mobile-menu.open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

@media (max-width: 1023px) {
  .mobile-menu {
    display: flex;
    flex-direction: column;
  }
}

.mobile-menu-item {
  color: white;
  padding: 1rem 1.5rem;
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 500;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  width: 100%;
  text-align: left;
  font-size: 1.1rem;
  position: relative;
  overflow: hidden;
}

.mobile-menu-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.1);
  transition: left 0.3s ease;
  z-index: -1;
}

.mobile-menu-item:hover {
  background: rgba(255, 255, 255, 0.25);
  padding-left: 2rem;
  transform: translateX(5px);
}

.mobile-menu-item:hover::before {
  left: 0;
}

.mobile-menu-item.active {
  background: rgba(255, 255, 255, 0.3);
  font-weight: 600;
  padding-left: 2rem;
  border-left: 4px solid rgba(255, 255, 255, 0.8);
}

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

.mobile-menu-item:first-child {
  margin-top: 0.5rem;
}

.mobile-menu-item:last-child {
  margin-bottom: 0.5rem;
}

/* Mobile overlay for closing menu */
.mobile-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.mobile-overlay.open {
  opacity: 1;
  visibility: visible;
}

@media (min-width: 1024px) {
  .mobile-overlay {
    display: none;
  }
}

/* Improved navbar animations */
.navbar {
  transition: all 0.3s ease;
}

.navbar.menu-open {
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

/* Better auth button styling */
.auth-section button {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.auth-section button:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Responsive logo text */
@media (max-width: 640px) {
  .logo span {
    font-size: 1rem;
  }
}

/* Focus states for accessibility */
.nav-item:focus,
.mobile-menu-item:focus,
.mobile-menu-toggle:focus {
  outline: 2px solid rgba(255, 255, 255, 0.8);
  outline-offset: 2px;
}

/* Smooth scroll behavior */
html {
  scroll-behavior: smooth;
}

/* Enhanced History Page Styles */
.analytics-dashboard {
  background: linear-gradient(145deg, #f8fafc, #e2e8f0);
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.analytics-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.analytics-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
  margin: 1rem 0;
}

.analytics-card {
  padding: 1.5rem;
  border-radius: 12px;
  color: white;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
  transition: transform 0.3s ease;
}

.analytics-card:hover {
  transform: translateY(-4px);
}

.modern-history-card {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.modern-history-card:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 12px 30px rgba(0,0,0,0.15) !important;
}

.modern-history-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #10b981, #3b82f6, #8b5cf6);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.modern-history-card:hover::before {
  opacity: 1;
}

.history-controls-advanced {
  background: linear-gradient(145deg, #f8fafc, #e2e8f0);
  padding: 1.5rem;
  border-radius: 12px;
  margin: 1rem 0;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.unified-history-container h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #1f2937, #4b5563);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.history-entries-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
}

@media (max-width: 768px) {
  .history-entries-grid {
    grid-template-columns: 1fr;
  }
  
  .analytics-cards {
    grid-template-columns: 1fr;
  }
  
  .history-controls-advanced > div {
    flex-direction: column;
    gap: 0.5rem;
  }
}

/* Modal styles */
.history-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  backdrop-filter: blur(4px);
}

.history-modal-content {
  background: white;
  border-radius: 16px;
  padding: 2rem;
  max-width: 700px;
  max-height: 90vh;
  overflow-y: auto;
  overflow-x: hidden;
  margin: 1rem;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
  animation: modalSlideIn 0.3s ease;
  width: 90%;
}

/* Custom scrollbar for modal */
.history-modal-content::-webkit-scrollbar {
  width: 8px;
}

.history-modal-content::-webkit-scrollbar-track {
  background: #f1f5f9;
  border-radius: 4px;
}

.history-modal-content::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 4px;
}

.history-modal-content::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(-20px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}