@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600;700&display=swap');
@tailwind base;
@tailwind components;
@tailwind utilities;

/* Professional Design System */
:root {
  /* Primary Colors - Modern Blue & Teal */
  --primary-50: #eff6ff;
  --primary-100: #dbeafe;
  --primary-200: #bfdbfe;
  --primary-300: #93c5fd;
  --primary-400: #60a5fa;
  --primary-500: #2563eb;
  --primary-600: #1d4ed8;
  --primary-700: #1e40af;
  --primary-800: #1e3a8a;
  --primary-900: #1e3a8a;

  /* Secondary Colors - Teal */
  --secondary-50: #f0fdfa;
  --secondary-100: #ccfbf1;
  --secondary-200: #99f6e4;
  --secondary-300: #5eead4;
  --secondary-400: #2dd4bf;
  --secondary-500: #0d9488;
  --secondary-600: #0f766e;
  --secondary-700: #115e59;
  --secondary-800: #134e4a;
  --secondary-900: #134e4a;

  /* Accent Colors - Warm Orange */
  --accent-50: #fffbeb;
  --accent-100: #fef3c7;
  --accent-200: #fde68a;
  --accent-300: #fcd34d;
  --accent-400: #fbbf24;
  --accent-500: #f59e0b;
  --accent-600: #d97706;
  --accent-700: #b45309;
  --accent-800: #92400e;
  --accent-900: #78350f;

  /* Neutral Colors */
  --neutral-50: #fafafa;
  --neutral-100: #f5f5f5;
  --neutral-200: #e5e5e5;
  --neutral-300: #d4d4d4;
  --neutral-400: #a3a3a3;
  --neutral-500: #737373;
  --neutral-600: #525252;
  --neutral-700: #404040;
  --neutral-800: #262626;
  --neutral-900: #171717;
  --neutral-950: #0a0a0a;

  /* Background Colors */
  --bg-light: #f8fafc;
  --bg-light-secondary: #f1f5f9;
  --bg-dark: #0a0a0a;
  --bg-dark-secondary: #111111;

  /* Text Colors */
  --text-light-primary: #171717;
  --text-light-secondary: #525252;
  --text-light-tertiary: #a3a3a3;
  --text-dark-primary: #ffffff;
  --text-dark-secondary: #d4d4d4;
  --text-dark-tertiary: #a3a3a3;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #eff6ff 0%, #dbeafe 25%, #60a5fa 50%, #2563eb 75%, #1e40af 100%);
  --gradient-secondary: linear-gradient(135deg, #f0fdfa 0%, #ccfbf1 25%, #2dd4bf 50%, #0d9488 75%, #0f766e 100%);
  --gradient-accent: linear-gradient(135deg, #fffbeb 0%, #fef3c7 50%, #f59e0b 100%);
  --gradient-dark: linear-gradient(135deg, #0a0a0a 0%, #111111 25%, #1a1a1a 50%, #262626 75%, #404040 100%);

  /* Shadows */
  --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);
  --shadow-glow: 0 0 20px rgb(239 68 68 / 0.3);

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-3xl: 2rem;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  --space-4xl: 8rem;

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

/* Dark Mode Variables */
.dark {
  --bg-light: var(--bg-dark);
  --bg-light-secondary: var(--bg-dark-secondary);
  --text-light-primary: var(--text-dark-primary);
  --text-light-secondary: var(--text-dark-secondary);
  --text-light-tertiary: var(--text-dark-tertiary);
}

/* Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text-light-primary);
  background-color: var(--bg-light);
  transition: all var(--transition-normal);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Professional Typography */
.font-heading {
  font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

/* Typography Scale */
.text-display {
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.04em;
}

.text-hero {
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.03em;
}

.text-title {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.02em;
}

.text-subtitle {
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  font-weight: 500;
  line-height: 1.4;
}

.text-body {
  font-size: 1rem;
  line-height: 1.6;
  font-weight: 400;
}

.text-caption {
  font-size: 0.875rem;
  line-height: 1.5;
  font-weight: 400;
}

/* Professional Components */
.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  background-size: 200% 200%;
  animation: gradient-shift 3s ease infinite;
}

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

.gradient-bg {
  background: var(--gradient-primary);
}

.gradient-bg-secondary {
  background: var(--gradient-secondary);
}

.gradient-bg-dark {
  background: var(--gradient-dark);
}

/* Glass Morphism */
.glass {
  backdrop-filter: blur(20px);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: var(--shadow-lg);
}

.dark .glass {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Professional Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.5;
  border-radius: var(--radius-xl);
  transition: all var(--transition-normal);
  cursor: pointer;
  text-decoration: none;
  border: none;
  position: relative;
  overflow: hidden;
}

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

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: transparent;
  color: var(--text-light-primary);
  border: 2px solid var(--neutral-300);
  box-shadow: var(--shadow-sm);
}

.dark .btn-secondary {
  color: var(--text-dark-primary);
  border-color: var(--neutral-600);
}

.btn-secondary:hover {
  background: var(--neutral-100);
  color: var(--text-light-primary);
  border-color: var(--primary-400);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.dark .btn-secondary:hover {
  background: var(--neutral-800);
  color: var(--text-dark-primary);
}

.btn-ghost {
  background: transparent;
  color: var(--text-light-secondary);
  padding: 0.5rem 1rem;
}

.btn-ghost:hover {
  background: var(--neutral-100);
  color: var(--text-light-primary);
}

.dark .btn-ghost:hover {
  background: var(--neutral-800);
  color: var(--text-dark-primary);
}

/* Professional Cards */
.card {
  background: var(--bg-light);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--neutral-200);
  transition: all var(--transition-normal);
  overflow: hidden;
}

.dark .card {
  background: var(--bg-dark-secondary);
  border-color: var(--neutral-700);
}

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

.card-elevated {
  box-shadow: var(--shadow-lg);
}

.card-elevated:hover {
  box-shadow: var(--shadow-2xl);
}

/* Professional Navigation */
.nav-link {
  position: relative;
  color: var(--text-light-secondary);
  font-weight: 500;
  text-decoration: none;
  transition: all var(--transition-fast);
  padding: 0.5rem 0;
}

.dark .nav-link {
  color: var(--text-dark-secondary);
}

.nav-link:hover {
  color: var(--primary-500);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-normal);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* Professional Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--neutral-200);
  transition: all var(--transition-normal);
}

.dark .header {
  background: rgba(10, 10, 10, 0.8);
  border-color: var(--neutral-700);
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow-md);
}

.dark .header.scrolled {
  background: rgba(10, 10, 10, 0.95);
}

/* Professional Theme Toggle */
.theme-toggle {
  position: relative;
  width: 3.5rem;
  height: 1.5rem;
  background: var(--neutral-300);
  border-radius: 9999px;
  transition: all var(--transition-normal);
  cursor: pointer;
  border: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 0.25rem;
}

.dark .theme-toggle {
  background: var(--neutral-600);
}

.theme-toggle::before {
  content: '☀️';
  position: absolute;
  top: 50%;
  left: 0.25rem;
  transform: translateY(-50%);
  font-size: 0.75rem;
  transition: all var(--transition-normal);
  z-index: 2;
}

.theme-toggle::after {
  content: '🌙';
  position: absolute;
  top: 50%;
  right: 0.25rem;
  transform: translateY(-50%);
  font-size: 0.75rem;
  transition: all var(--transition-normal);
  z-index: 2;
}

.dark .theme-toggle::before {
  opacity: 0.3;
}

.dark .theme-toggle::after {
  opacity: 1;
}

.theme-toggle .toggle-slider {
  position: absolute;
  top: 0.125rem;
  left: 0.125rem;
  width: 1.25rem;
  height: 1.25rem;
  background: white;
  border-radius: 50%;
  transition: transform var(--transition-normal);
  box-shadow: var(--shadow-sm);
  z-index: 1;
}

.dark .theme-toggle .toggle-slider {
  transform: translateX(2rem);
}

/* Professional Mobile Menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(20px);
  z-index: 50;
  transform: translateX(-100%);
  transition: transform var(--transition-normal);
}

.mobile-menu.active {
  transform: translateX(0);
}

/* Professional Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(2rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-2rem);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(2rem);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-1rem);
  }
}

.animate-fadeInUp {
  animation: fadeInUp 0.8s ease-out forwards;
}

.animate-fadeInLeft {
  animation: fadeInLeft 0.8s ease-out forwards;
}

.animate-fadeInRight {
  animation: fadeInRight 0.8s ease-out forwards;
}

.animate-scaleIn {
  animation: scaleIn 0.6s ease-out forwards;
}

.animate-float {
  animation: float 3s ease-in-out infinite;
}

/* Scroll Reveal */
.scroll-reveal {
  opacity: 0;
  transform: translateY(2rem);
  transition: all 0.8s ease-out;
}

.scroll-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Professional Stats */
.stat-card {
  background: var(--bg-light);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-2xl);
  padding: var(--space-lg);
  text-align: center;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.dark .stat-card {
  background: var(--bg-dark-secondary);
  border-color: var(--neutral-700);
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
}

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

.stat-number {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--primary-500);
  margin-bottom: 0.5rem;
}

/* Professional Model Cards */
.model-card {
  position: relative;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  background: var(--bg-light);
  border: 1px solid var(--neutral-200);
  transition: all var(--transition-normal);
  cursor: pointer;
}

.dark .model-card {
  background: var(--bg-dark-secondary);
  border-color: var(--neutral-700);
}

.model-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-2xl);
}

.model-card img {
  width: 100%;
  height: 20rem;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.model-card:hover img {
  transform: scale(1.05);
}

.model-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.8) 0%,
    rgba(0, 0, 0, 0.4) 50%,
    transparent 100%
  );
  opacity: 0;
  transition: opacity var(--transition-normal);
  display: flex;
  align-items: flex-end;
  padding: var(--space-lg);
}

.model-card:hover .model-overlay {
  opacity: 1;
}

/* Professional Forms */
.form-input {
  width: 100%;
  padding: 1rem 1.5rem;
  background: var(--bg-light);
  border: 2px solid var(--neutral-200);
  border-radius: var(--radius-xl);
  color: var(--text-light-primary);
  font-size: 1rem;
  transition: all var(--transition-normal);
}

.dark .form-input {
  background: var(--bg-dark-secondary);
  border-color: var(--neutral-600);
  color: var(--text-dark-primary);
}

.form-input:focus {
  outline: none;
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

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

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

/* Professional Sections */
.section {
  padding: var(--space-4xl) 0;
}

.section-sm {
  padding: var(--space-3xl) 0;
}

.section-lg {
  padding: var(--space-4xl) 0;
}

/* Professional Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* Professional Grid */
.grid-auto {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
}

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

.bg-gradient {
  background: var(--gradient-primary);
}

.shadow-glow {
  box-shadow: var(--shadow-glow);
}

.backdrop-blur {
  backdrop-filter: blur(20px);
}

/* Professional Responsive Design */
@media (max-width: 768px) {
  .container {
    padding: 0 var(--space-md);
  }
  
  .section {
    padding: var(--space-3xl) 0;
  }
  
  .btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
  }
  
  .card {
    border-radius: var(--radius-xl);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-sm);
  }
  
  .section {
    padding: var(--space-2xl) 0;
  }
}

/* Professional Loading States */
.loading {
  background: linear-gradient(90deg, var(--neutral-200) 25%, var(--neutral-100) 50%, var(--neutral-200) 75%);
  background-size: 200% 100%;
  animation: loading 1.5s infinite;
}

.dark .loading {
  background: linear-gradient(90deg, var(--neutral-700) 25%, var(--neutral-600) 50%, var(--neutral-700) 75%);
}

@keyframes loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Professional Focus States */
.focus-visible {
  outline: 2px solid var(--primary-500);
  outline-offset: 2px;
}

/* Professional Print Styles */
@media print {
  .no-print {
    display: none !important;
  }
  
  body {
    background: white !important;
    color: black !important;
  }
}