@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
  /* Colors - Premium Light Mode Leaning with vibrant accents */
  --bg-dark: #f3f4f6;
  --bg-darker: #e5e7eb;
  --bg-surface: #ffffff;
  --bg-surface-hover: #f8fafc;
  --text-primary: #111827;
  --text-secondary: #4b5563;
  --text-tertiary: #9ca3af;
  
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-light: #6366f1;
  
  --accent-cyan: #0891b2;
  --accent-purple: #a855f7;
  
  --border-color: rgba(0, 0, 0, 0.08);
  --glass-bg: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(0, 0, 0, 0.1);

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--primary), var(--accent-cyan));
  --gradient-text: linear-gradient(to right, #111827, #4f46e5);

  /* Typography */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-display: 'Outfit', var(--font-sans);
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;
  --spacing-5xl: 8rem;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-glow: 0 0 20px rgba(79, 70, 229, 0.3);

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;
  
  /* Layout */
  --container-width: 1200px;
  --header-height: 80px;
}

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

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol {
  list-style: none;
}

button, input, textarea, select {
  font-family: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  background: none;
  border: none;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-lg);
  }
}

/* Layout Utilities */
.section {
  padding: var(--spacing-4xl) 0;
}

.section-padding-lg {
  padding: var(--spacing-5xl) 0;
}

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }
.gap-xl { gap: var(--spacing-xl); }
.gap-2xl { gap: var(--spacing-2xl); }

.grid { display: grid; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
  .grid-cols-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-cols-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .grid-cols-4, .grid-cols-3, .grid-cols-2 { 
    grid-template-columns: 1fr; 
  }
  .section { padding: var(--spacing-3xl) 0; }
  .section-padding-lg { padding: var(--spacing-4xl) 0; }
}

/* Typography Utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

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

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

.text-sm { font-size: 0.875rem; }
.text-base { font-size: 1rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.text-3xl { font-size: 1.875rem; }
.text-4xl { font-size: 2.25rem; }
.text-5xl { font-size: 3rem; }
.text-6xl { font-size: 3.75rem; }
.text-7xl { font-size: 4.5rem; }

.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.text-muted { color: var(--text-secondary); }

/* Animation Utilities */
.fade-in-up {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   Missing Utility Classes (Tailwind Parity)
   ========================================================================== */

/* Margins */
.m-0 { margin: 0; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-2 { margin-top: 0.5rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mb-4 { margin-bottom: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mt-8 { margin-top: 2rem; }
.mb-8 { margin-bottom: 2rem; }
.mt-12 { margin-top: 3rem; }
.mb-12 { margin-bottom: 3rem; }
.mt-16 { margin-top: 4rem; }
.mb-16 { margin-bottom: 4rem; }
.mt-24 { margin-top: 6rem; }
.mb-24 { margin-bottom: 6rem; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* Padding */
.p-0 { padding: 0; }
.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }
.p-8 { padding: 2rem; }
.p-12 { padding: 3rem; }
.pt-0 { padding-top: 0; }
.pb-0 { padding-bottom: 0; }
.pt-4 { padding-top: 1rem; }
.pb-4 { padding-bottom: 1rem; }
.pt-6 { padding-top: 1.5rem; }
.pb-6 { padding-bottom: 1.5rem; }
.pt-8 { padding-top: 2rem; }
.pb-8 { padding-bottom: 2rem; }
.pt-12 { padding-top: 3rem; }
.pb-12 { padding-bottom: 3rem; }
.pt-16 { padding-top: 4rem; }
.pb-16 { padding-bottom: 4rem; }
.pt-24 { padding-top: 6rem; }
.pb-24 { padding-bottom: 6rem; }

/* Sizing */
.w-full { width: 100%; }
.h-full { height: 100%; }
.max-w-sm { max-width: 24rem; }
.max-w-md { max-width: 28rem; }
.max-w-lg { max-width: 32rem; }
.max-w-xl { max-width: 36rem; }
.max-w-2xl { max-width: 42rem; }
.max-w-3xl { max-width: 48rem; }
.max-w-4xl { max-width: 56rem; }

/* Border */
.border { border-width: 1px; border-style: solid; border-color: var(--border-color); }
.border-t { border-top-width: 1px; border-top-style: solid; border-top-color: var(--border-color); }
.border-b { border-bottom-width: 1px; border-bottom-style: solid; border-bottom-color: var(--border-color); }
.border-l { border-left-width: 1px; border-left-style: solid; border-left-color: var(--border-color); }
.border-r { border-right-width: 1px; border-right-style: solid; border-right-color: var(--border-color); }
.border-0 { border-width: 0 !important; }
.border-none { border: none !important; }
.border-transparent { border-color: transparent !important; }

/* Colors (Mapped properly for light mode) */
.text-white { color: var(--text-primary); }
.text-black { color: var(--text-primary); }
.text-gray-300 { color: var(--text-secondary); }
.text-gray-600 { color: var(--text-secondary); }
.text-gray-800 { color: var(--text-primary); }
.bg-white { background-color: var(--bg-surface); }
.bg-dark { background-color: var(--bg-dark); }
.bg-darker { background-color: var(--bg-darker); }
.bg-surface { background-color: var(--bg-surface); }

/* Flex & Layout */
.flex-grow { flex-grow: 1; }
.flex-wrap { flex-wrap: wrap; }
.inline-block { display: inline-block; }
.block { display: block; }
.hidden { display: none; }

/* Text & Misc */
.uppercase { text-transform: uppercase; }
.tracking-wide { letter-spacing: 0.025em; }
.tracking-widest { letter-spacing: 0.1em; }
.overflow-hidden { overflow: hidden; }
.relative { position: relative; }
.absolute { position: absolute; }
.inset-0 { top: 0; right: 0; bottom: 0; left: 0; }
.z-10 { z-index: 10; }
.z-20 { z-index: 20; }