/**
 * AI-Ready Website Analyzer - Premium CSS Styles
 * Material Design 3.0 with Glass Morphism Effects
 */

/* CSS Variables for Theme Consistency */
:root {
  /* Professional Color Palette inspired by OpenAI */
  --color-primary: #10a37f;
  --color-primary-dark: #0d8763;
  --color-primary-light: #1fb885;
  --color-secondary: #6366f1;
  --color-accent: #8b5cf6;
  
  --color-slate-50: #f8fafc;
  --color-slate-100: #f1f5f9;
  --color-slate-200: #e2e8f0;
  --color-slate-300: #cbd5e1;
  --color-slate-400: #94a3b8;
  --color-slate-500: #64748b;
  --color-slate-600: #475569;
  --color-slate-700: #334155;
  --color-slate-800: #1e293b;
  --color-slate-900: #0f172a;
  
  --color-success: #059669;
  --color-warning: #d97706;
  --color-error: #dc2626;
  
  /* Professional Glass Variables */
  --glass-bg: rgba(30, 41, 59, 0.5);
  --glass-bg-hover: rgba(30, 41, 59, 0.7);
  --glass-border: rgba(71, 85, 105, 0.5);
  --glass-border-hover: rgba(71, 85, 105, 0.7);
  --surface-bg: rgba(30, 41, 59, 0.3);
  --surface-border: rgba(71, 85, 105, 0.3);
  
  /* Animation Variables */
  --duration-short: 150ms;
  --duration-medium: 300ms;
  --duration-long: 500ms;
  --easing-standard: cubic-bezier(0.2, 0, 0, 1);
  --easing-decelerate: cubic-bezier(0, 0, 0, 1);
  --easing-accelerate: cubic-bezier(0.3, 0, 1, 1);
}

/* Base Styles with Material Design Typography */
body {
  font-family: 'Inter', 'Roboto', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.6;
  letter-spacing: -0.01em;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Material Design Typography Scale */
.display-large {
  font-size: 3.5rem;
  line-height: 1.12;
  font-weight: 400;
  letter-spacing: -0.025em;
}

.display-medium {
  font-size: 2.8125rem;
  line-height: 1.16;
  font-weight: 400;
  letter-spacing: 0;
}

.display-small {
  font-size: 2.25rem;
  line-height: 1.22;
  font-weight: 400;
  letter-spacing: 0;
}

.headline-large {
  font-size: 2rem;
  line-height: 1.25;
  font-weight: 400;
  letter-spacing: 0;
}

.headline-medium {
  font-size: 1.75rem;
  line-height: 1.29;
  font-weight: 400;
  letter-spacing: 0;
}

.headline-small {
  font-size: 1.5rem;
  line-height: 1.33;
  font-weight: 400;
  letter-spacing: 0;
}

.title-large {
  font-size: 1.375rem;
  line-height: 1.27;
  font-weight: 500;
  letter-spacing: 0;
}

.title-medium {
  font-size: 1rem;
  line-height: 1.5;
  font-weight: 500;
  letter-spacing: 0.009375rem;
}

.title-small {
  font-size: 0.875rem;
  line-height: 1.43;
  font-weight: 500;
  letter-spacing: 0.00625rem;
}

/* Professional Surface Classes */
.glass-morphism {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  transition: all var(--duration-medium) var(--easing-standard);
}

.glass-morphism:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
}

.glass-card {
  background: var(--surface-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--surface-border);
  transition: all var(--duration-medium) var(--easing-standard);
}

.glass-card:hover {
  background: var(--glass-bg);
  border-color: var(--glass-border);
}

.glass-surface {
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

/* Material Design Elevation System */
.elevation-0 {
  box-shadow: none;
}

.elevation-1 {
  box-shadow: 0px 1px 2px rgba(0, 0, 0, 0.3), 0px 1px 3px 1px rgba(0, 0, 0, 0.15);
}

.elevation-2 {
  box-shadow: 0px 1px 2px rgba(0, 0, 0, 0.3), 0px 2px 6px 2px rgba(0, 0, 0, 0.15);
}

.elevation-3 {
  box-shadow: 0px 1px 3px rgba(0, 0, 0, 0.3), 0px 4px 8px 3px rgba(0, 0, 0, 0.15);
}

.elevation-4 {
  box-shadow: 0px 2px 3px rgba(0, 0, 0, 0.3), 0px 6px 10px 4px rgba(0, 0, 0, 0.15);
}

.elevation-5 {
  box-shadow: 0px 4px 4px rgba(0, 0, 0, 0.3), 0px 8px 12px 6px rgba(0, 0, 0, 0.15);
}

/* Clean Button Styles */
.btn-primary {
  background: var(--color-primary);
  color: white;
  border: none;
  border-radius: 8px;
  padding: 12px 24px;
  font-weight: 500;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all var(--duration-medium) var(--easing-standard);
}

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

.btn-primary:active {
  background: var(--color-primary-dark);
}

.btn-secondary {
  background: var(--surface-bg);
  color: var(--color-slate-300);
  border: 1px solid var(--surface-border);
  border-radius: 8px;
  padding: 12px 24px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--duration-medium) var(--easing-standard);
}

.btn-secondary:hover {
  background: var(--glass-bg);
  border-color: var(--glass-border);
  color: white;
}

/* Clean Form Elements */
.form-input {
  background: var(--surface-bg);
  border: 1px solid var(--surface-border);
  border-radius: 8px;
  padding: 12px 16px;
  color: white;
  font-size: 0.875rem;
  transition: all var(--duration-medium) var(--easing-standard);
}

.form-input::placeholder {
  color: var(--color-slate-400);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(16, 163, 127, 0.2);
  background: var(--glass-bg);
}

.form-input:hover {
  border-color: var(--glass-border);
  background: var(--glass-bg);
}

/* Clean Toggle Switch */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 48px;
  height: 24px;
  background: var(--color-slate-600);
  border-radius: 12px;
  cursor: pointer;
  transition: all var(--duration-medium) var(--easing-standard);
}

.toggle-switch.active {
  background: var(--color-primary);
}

.toggle-switch::before {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  background: white;
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
  transition: all var(--duration-medium) var(--easing-standard);
}

.toggle-switch.active::before {
  transform: translateX(24px);
}

/* Enhanced Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes bounceSubtle {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

@keyframes glow {
  0% {
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.3);
  }
  100% {
    box-shadow: 0 0 40px rgba(139, 92, 246, 0.6), 0 0 60px rgba(139, 92, 246, 0.4);
  }
}

@keyframes shake {
  0%, 100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-8px);
  }
  75% {
    transform: translateX(8px);
  }
}

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

@keyframes shimmer {
  0% {
    background-position: -200px 0;
  }
  100% {
    background-position: calc(200px + 100%) 0;
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-15px);
  }
}

/* Animation Classes */
.animate-fade-in-up {
  animation: fadeInUp 0.6s var(--easing-standard) forwards;
}

.animate-fade-in-down {
  animation: fadeInDown 0.6s var(--easing-standard) forwards;
}

.animate-slide-up {
  animation: slideUp 0.4s var(--easing-standard) forwards;
}

.animate-bounce-subtle {
  animation: bounceSubtle 3s ease-in-out infinite;
}

.animate-glow {
  animation: glow 2s ease-in-out infinite alternate;
}

.animate-shake {
  animation: shake 0.5s ease-in-out;
}

.animate-gradient {
  background-size: 400% 400%;
  animation: gradient 15s ease infinite;
}

.animate-shimmer {
  background: linear-gradient(90deg, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.1) 50%, rgba(255, 255, 255, 0) 100%);
  background-size: 200px 100%;
  animation: shimmer 2s infinite;
}

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

.animate-spin {
  animation: spin 1s linear infinite;
}

.animate-float {
  animation: float 6s ease-in-out infinite;
}

/* Loading States */
.loading-skeleton {
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.1) 25%, rgba(255, 255, 255, 0.2) 50%, rgba(255, 255, 255, 0.1) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 8px;
}

.loading-dots::after {
  content: '';
  animation: dots 1.5s steps(5, end) infinite;
}

@keyframes dots {
  0%, 20% {
    color: rgba(255, 255, 255, 0);
    text-shadow: 
      0.25em 0 0 rgba(255, 255, 255, 0),
      0.5em 0 0 rgba(255, 255, 255, 0);
  }
  40% {
    color: white;
    text-shadow: 
      0.25em 0 0 rgba(255, 255, 255, 0),
      0.5em 0 0 rgba(255, 255, 255, 0);
  }
  60% {
    text-shadow: 
      0.25em 0 0 white,
      0.5em 0 0 rgba(255, 255, 255, 0);
  }
  80%, 100% {
    text-shadow: 
      0.25em 0 0 white,
      0.5em 0 0 white;
  }
}

/* Metric Card Enhancements */
.metric-card {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 24px;
  transition: all var(--duration-medium) var(--easing-standard);
  position: relative;
  overflow: hidden;
}

.metric-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(139, 92, 246, 0.8), transparent);
  transform: translateX(-100%);
  transition: transform var(--duration-long) var(--easing-standard);
}

.metric-card:hover::before {
  transform: translateX(100%);
}

.metric-card:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
}

/* Score Circle Enhancement */
.score-circle {
  position: relative;
  border-radius: 50%;
  background: conic-gradient(from 0deg, var(--color, #6366f1) var(--progress, 0%), rgba(255, 255, 255, 0.1) var(--progress, 0%));
  transition: all var(--duration-long) var(--easing-standard);
}

.score-circle::before {
  content: '';
  position: absolute;
  top: 8px;
  left: 8px;
  right: 8px;
  bottom: 8px;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 50%;
  backdrop-filter: blur(10px);
}

/* Enhanced Scrollbar */
::-webkit-scrollbar {
  width: 12px;
}

::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 6px;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.6), rgba(99, 102, 241, 0.6));
  border-radius: 6px;
  border: 2px solid rgba(255, 255, 255, 0.1);
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.8), rgba(99, 102, 241, 0.8));
}

/* Scroll Progress Indicator */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, #6366f1, #8b5cf6, #ec4899);
  transform-origin: left;
  z-index: 9999;
  transition: transform var(--duration-short) var(--easing-standard);
}

/* Pricing Card Enhancements */
.pricing-card {
  transition: all var(--duration-medium) var(--easing-standard);
  position: relative;
}

.pricing-card.popular {
  z-index: 10;
}

.pricing-card.popular .glass-morphism {
  background: rgba(139, 92, 246, 0.15);
  border: 2px solid rgba(139, 92, 246, 0.4);
  box-shadow: 0 20px 60px rgba(139, 92, 246, 0.3);
}

.pricing-card:hover {
  z-index: 20;
}

/* Feature Highlight Cards */
.feature-card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 32px;
  text-align: center;
  transition: all var(--duration-medium) var(--easing-standard);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: conic-gradient(from 0deg, transparent, rgba(139, 92, 246, 0.1), transparent);
  animation: spin 8s linear infinite;
  opacity: 0;
  transition: opacity var(--duration-medium) var(--easing-standard);
}

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

.feature-card:hover {
  transform: translateY(-12px) scale(1.05);
  background: var(--glass-bg-hover);
  border-color: rgba(139, 92, 246, 0.4);
  box-shadow: 0 25px 60px rgba(139, 92, 246, 0.2);
}

/* Navigation Enhancement */
nav.glass-morphism {
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  background: rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* Footer Styling */
footer {
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Status Indicators */
.status-excellent {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.2), rgba(5, 150, 105, 0.2));
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #10b981;
}

.status-good {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(37, 99, 235, 0.2));
  border: 1px solid rgba(59, 130, 246, 0.3);
  color: #3b82f6;
}

.status-warning {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.2), rgba(217, 119, 6, 0.2));
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: #f59e0b;
}

.status-poor {
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.2), rgba(220, 38, 38, 0.2));
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #ef4444;
}

/* Responsive Design Enhancements */
@media (max-width: 768px) {
  .glass-card {
    padding: 16px;
  }
  
  .metric-card {
    padding: 16px;
  }
  
  .feature-card {
    padding: 20px;
  }
  
  .display-large {
    font-size: 2.5rem;
  }
  
  .display-medium {
    font-size: 2rem;
  }
  
  .display-small {
    font-size: 1.75rem;
  }
}

@media (max-width: 480px) {
  .glass-morphism {
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
  }
  
  .glass-card {
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
  }
}

/* Accessibility Enhancements */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .scroll-progress {
    animation: none;
  }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
  .glass-morphism,
  .glass-card {
    background: rgba(0, 0, 0, 0.8);
    border: 2px solid rgba(255, 255, 255, 0.8);
  }
  
  .btn-primary {
    background: #ffffff;
    color: #000000;
    border: 2px solid #000000;
  }
}

/* Print Styles */
@media print {
  .glass-morphism,
  .glass-card {
    background: white !important;
    border: 1px solid #ccc !important;
    box-shadow: none !important;
  }
  
  .animate-fade-in-up,
  .animate-fade-in-down,
  .animate-slide-up,
  .animate-bounce-subtle,
  .animate-glow,
  .animate-gradient,
  .animate-shimmer,
  .animate-pulse,
  .animate-spin,
  .animate-float {
    animation: none !important;
  }
}