/* DentalCare Pro - Premium Design System */
:root {
  /* CSS Variables for Design System */
  --radius: 0.75rem;
  --radius-sm: 0.5rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-2xl: 2rem;
  
  /* Light Mode Colors */
  --background: 0 0% 100%;
  --foreground: 222.2 84% 4.9%;
  --card: 0 0% 100%;
  --card-foreground: 222.2 84% 4.9%;
  --popover: 0 0% 100%;
  --popover-foreground: 222.2 84% 4.9%;
  --primary: 221.2 83.2% 53.3%;
  --primary-foreground: 210 40% 98%;
  --secondary: 210 40% 96%;
  --secondary-foreground: 222.2 84% 4.9%;
  --muted: 210 40% 96%;
  --muted-foreground: 215.4 16.3% 46.9%;
  --accent: 210 40% 96%;
  --accent-foreground: 222.2 84% 4.9%;
  --destructive: 0 84.2% 60.2%;
  --destructive-foreground: 210 40% 98%;
  --border: 214.3 31.8% 91.4%;
  --input: 214.3 31.8% 91.4%;
  --ring: 221.2 83.2% 53.3%;
  
  /* Dental Theme Colors */
  --dental-primary: 199 89% 48%;
  --dental-secondary: 142 76% 36%;
  --dental-accent: 45 93% 47%;
  --dental-muted: 215 25% 27%;
  
  /* Premium Gradients */
  --gradient-primary: linear-gradient(135deg, hsl(221.2 83.2% 53.3%) 0%, hsl(262.1 83.3% 57.8%) 100%);
  --gradient-dental: linear-gradient(135deg, hsl(199 89% 48%) 0%, hsl(142 76% 36%) 100%);
  --gradient-success: linear-gradient(135deg, hsl(142 76% 36%) 0%, hsl(158 64% 52%) 100%);
  --gradient-warning: linear-gradient(135deg, hsl(45 93% 47%) 0%, hsl(25 95% 53%) 100%);
  --gradient-error: linear-gradient(135deg, hsl(0 84% 60%) 0%, hsl(340 75% 55%) 100%);
  
  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.8);
  --glass-border: rgba(255, 255, 255, 0.3);
  --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
  
  /* Shadows */
  --shadow-soft: 0 2px 15px -3px rgba(0, 0, 0, 0.07), 0 10px 20px -2px rgba(0, 0, 0, 0.04);
  --shadow-medium: 0 4px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-hard: 0 10px 40px -10px rgba(0, 0, 0, 0.2), 0 2px 10px -5px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.3);
  --shadow-glow-dental: 0 0 20px rgba(14, 165, 233, 0.3);
}

/* Dark Mode Colors */
.dark {
  --background: 222.2 84% 4.9%;
  --foreground: 210 40% 98%;
  --card: 222.2 84% 4.9%;
  --card-foreground: 210 40% 98%;
  --popover: 222.2 84% 4.9%;
  --popover-foreground: 210 40% 98%;
  --primary: 217.2 91.2% 59.8%;
  --primary-foreground: 222.2 84% 4.9%;
  --secondary: 217.2 32.6% 17.5%;
  --secondary-foreground: 210 40% 98%;
  --muted: 217.2 32.6% 17.5%;
  --muted-foreground: 215 20.2% 65.1%;
  --accent: 217.2 32.6% 17.5%;
  --accent-foreground: 210 40% 98%;
  --destructive: 0 62.8% 30.6%;
  --destructive-foreground: 210 40% 98%;
  --border: 217.2 32.6% 17.5%;
  --input: 217.2 32.6% 17.5%;
  --ring: 224.3 76.3% 94.1%;
  
  /* Dark Mode Glassmorphism */
  --glass-bg: rgba(17, 25, 40, 0.8);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

/* Import Premium Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600&display=swap');

/* Base Styles */
* {
  border-color: hsl(var(--border));
}

body {
  background-color: hsl(var(--background));
  color: hsl(var(--foreground));
  font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', sans-serif;
  font-feature-settings: 'cv11', 'ss01';
  font-variation-settings: 'opsz' 32;
  line-height: 1.6;
  letter-spacing: -0.01em;
}

/* Premium Typography Scale */
.text-display-2xl {
  font-size: 4.5rem;
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -0.025em;
}

.text-display-xl {
  font-size: 3.75rem;
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -0.025em;
}

.text-display-lg {
  font-size: 3rem;
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.025em;
}

.text-display-md {
  font-size: 2.25rem;
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.025em;
}

.text-display-sm {
  font-size: 1.875rem;
  line-height: 1.3;
  font-weight: 600;
  letter-spacing: -0.025em;
}

.text-display-xs {
  font-size: 1.5rem;
  line-height: 1.3;
  font-weight: 600;
  letter-spacing: -0.025em;
}

/* Premium Component Classes */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

.glass-card-hover {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.glass-card-hover:hover {
  background: rgba(255, 255, 255, 0.9);
  transform: translateY(-2px);
  box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.15);
}

.dark .glass-card-hover:hover {
  background: rgba(17, 25, 40, 0.9);
}

/* Premium Button Styles */
.btn-premium {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.25rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  overflow: hidden;
}

.btn-premium::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity 0.2s ease;
  z-index: -1;
}

.btn-premium:hover::before {
  opacity: 1;
}

.btn-premium-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-soft);
}

.btn-premium-primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-medium);
}

.btn-premium-secondary {
  background: hsl(var(--secondary));
  color: hsl(var(--secondary-foreground));
  border: 1px solid hsl(var(--border));
}

.btn-premium-secondary:hover {
  background: hsl(var(--accent));
  transform: translateY(-1px);
}

/* Premium Card Styles */
.card-premium {
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}

.card-premium:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-medium);
}

.card-premium-header {
  padding: 1.5rem;
  border-bottom: 1px solid hsl(var(--border));
  background: hsl(var(--muted) / 0.5);
}

.card-premium-body {
  padding: 1.5rem;
}

.card-premium-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid hsl(var(--border));
  background: hsl(var(--muted) / 0.3);
}

/* Premium Form Styles */
.form-premium {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-group-premium {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-label-premium {
  font-size: 0.875rem;
  font-weight: 600;
  color: hsl(var(--foreground));
  line-height: 1.25rem;
}

.form-input-premium {
  display: flex;
  height: 2.5rem;
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid hsl(var(--border));
  background-color: hsl(var(--background));
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.form-input-premium:focus {
  outline: none;
  border-color: hsl(var(--ring));
  box-shadow: 0 0 0 3px hsl(var(--ring) / 0.1);
}

.form-textarea-premium {
  min-height: 5rem;
  padding: 0.75rem;
  resize: vertical;
}

/* Premium Navigation Styles */
.nav-premium {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

.nav-item-premium {
  position: relative;
  display: flex;
  align-items: center;
  padding: 0.75rem 1rem;
  margin: 0.25rem;
  border-radius: var(--radius);
  font-weight: 500;
  color: hsl(var(--muted-foreground));
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
}

.nav-item-premium:hover {
  background: hsl(var(--accent));
  color: hsl(var(--accent-foreground));
  transform: translateX(4px);
}

.nav-item-premium.active {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-soft);
}

.nav-item-premium.active::before {
  content: '';
  position: absolute;
  left: -0.5rem;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 1.5rem;
  background: var(--gradient-primary);
  border-radius: 0 2px 2px 0;
}

/* Premium Badge Styles */
.badge-premium {
  display: inline-flex;
  align-items: center;
  border-radius: 9999px;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1;
  transition: all 0.2s ease;
}

.badge-premium-primary {
  background: hsl(var(--primary) / 0.1);
  color: hsl(var(--primary));
  border: 1px solid hsl(var(--primary) / 0.2);
}

.badge-premium-success {
  background: hsl(142 76% 36% / 0.1);
  color: hsl(142 76% 36%);
  border: 1px solid hsl(142 76% 36% / 0.2);
}

.badge-premium-warning {
  background: hsl(45 93% 47% / 0.1);
  color: hsl(45 93% 47%);
  border: 1px solid hsl(45 93% 47% / 0.2);
}

.badge-premium-error {
  background: hsl(0 84% 60% / 0.1);
  color: hsl(0 84% 60%);
  border: 1px solid hsl(0 84% 60% / 0.2);
}

/* Premium Animation Classes */
.animate-fade-in {
  animation: fadeIn 0.5s ease-in-out;
}

.animate-fade-in-up {
  animation: fadeInUp 0.5s ease-out;
}

.animate-fade-in-down {
  animation: fadeInDown 0.5s ease-out;
}

.animate-slide-in-right {
  animation: slideInRight 0.3s ease-out;
}

.animate-slide-in-left {
  animation: slideInLeft 0.3s ease-out;
}

.animate-bounce-gentle {
  animation: bounceGentle 2s infinite;
}

.animate-pulse-slow {
  animation: pulse 3s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.animate-spin-slow {
  animation: spin 3s linear infinite;
}

.animate-wiggle {
  animation: wiggle 1s ease-in-out infinite;
}

/* Premium Keyframes */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

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

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

@keyframes slideInLeft {
  from { transform: translateX(-100%); }
  to { transform: translateX(0); }
}

@keyframes bounceGentle {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

@keyframes wiggle {
  0%, 100% { transform: rotate(-3deg); }
  50% { transform: rotate(3deg); }
}

/* Premium Utility Classes */
.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-dental {
  background: var(--gradient-dental);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-success {
  background: var(--gradient-success);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-warning {
  background: var(--gradient-warning);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-error {
  background: var(--gradient-error);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Premium Scrollbar */
.scrollbar-premium {
  scrollbar-width: thin;
  scrollbar-color: hsl(var(--muted-foreground)) transparent;
}

.scrollbar-premium::-webkit-scrollbar {
  width: 6px;
}

.scrollbar-premium::-webkit-scrollbar-track {
  background: transparent;
}

.scrollbar-premium::-webkit-scrollbar-thumb {
  background: hsl(var(--muted-foreground) / 0.3);
  border-radius: 3px;
}

.scrollbar-premium::-webkit-scrollbar-thumb:hover {
  background: hsl(var(--muted-foreground) / 0.5);
}

/* Premium Focus Styles */
.focus-premium:focus {
  outline: none;
  box-shadow: 0 0 0 3px hsl(var(--ring) / 0.2);
}

/* Premium Loading States */
.loading-premium {
  position: relative;
  overflow: hidden;
}

.loading-premium::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  animation: loading 1.5s infinite;
}

@keyframes loading {
  0% { left: -100%; }
  100% { left: 100%; }
}

/* Premium Responsive Design */
@media (max-width: 768px) {
  .text-display-2xl { font-size: 3rem; }
  .text-display-xl { font-size: 2.5rem; }
  .text-display-lg { font-size: 2rem; }
  .text-display-md { font-size: 1.75rem; }
  .text-display-sm { font-size: 1.5rem; }
  .text-display-xs { font-size: 1.25rem; }
}

/* Premium Print Styles */
@media print {
  .glass-card {
    background: white !important;
    backdrop-filter: none !important;
    box-shadow: none !important;
    border: 1px solid #e5e7eb !important;
  }
  
  .btn-premium {
    background: white !important;
    color: black !important;
    border: 1px solid #e5e7eb !important;
  }
}

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

/* Premium High Contrast Mode */
@media (prefers-contrast: high) {
  :root {
    --border: 0 0% 20%;
    --ring: 221.2 83.2% 53.3%;
  }
  
  .dark {
    --border: 0 0% 80%;
    --ring: 224.3 76.3% 94.1%;
  }
}

/* Premium Dark Mode Transitions */
* {
  transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}

/* Premium Selection Styles */
::selection {
  background: hsl(var(--primary) / 0.2);
  color: hsl(var(--primary-foreground));
}

::-moz-selection {
  background: hsl(var(--primary) / 0.2);
  color: hsl(var(--primary-foreground));
}