/* CSS Variables for Design System */
:root {
  /* Core Colors */
  --primary-green: #00ff88;
  --secondary-purple: #bd00ff;
  --bg-dark: #0f172a;
  --bg-darker: #020617;
  --bg-section: #1e293b;
  --bg-alt: #0f172a;
  
  /* Accent Colors */
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #64748b;
  --border-subtle: #334155;
  
  /* Typography */
  --font-serif: 'Playfair Display', 'Georgia', serif;
  --font-sans: 'Inter', 'Helvetica Neue', sans-serif;
  
  /* Spacing Scale */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;
  --space-2xl: 8rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.75rem;
  --radius-lg: 1.5rem;
  --radius-pill: 9999px;
  
  /* Shadows */
  --shadow-subtle: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-soft: 0 4px 6px rgba(0, 0, 0, 0.05);
  --shadow-elevated: 0 20px 25px rgba(0, 0, 0, 0.1);
  
  /* Transitions */
  --transition-fast: 0.15s ease-out;
  --transition-normal: 0.3s ease-out;
  --transition-slow: 0.5s ease-out;
}

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

/* Base Reset and Typography */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  font-weight: 400;
  line-height: 1.7;
  color: var(--text-primary);
  background-color: var(--bg-dark);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  letter-spacing: -0.01em;
}

/* Typography Hierarchy */
h1, h2, h3 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.2;
  color: var(--text-primary);
  margin: 0;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  margin-bottom: var(--space-md);
}

h2 {
  font-size: clamp(2rem, 4vw, 3.25rem);
  margin-bottom: var(--space-sm);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  margin-bottom: var(--space-sm);
}

h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 var(--space-sm) 0;
}

p {
  margin: 0 0 var(--space-sm) 0;
  color: var(--text-secondary);
  font-size: 1.125rem;
  line-height: 1.75;
}

a {
  color: var(--primary-green);
  text-decoration: none;
  transition: color var(--transition-fast);
  position: relative;
}

a:hover {
  color: var(--secondary-purple);
}

a.underline-link {
  position: relative;
}

a.underline-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 1px;
  bottom: -2px;
  left: 0;
  background-color: var(--secondary-purple);
  transition: width var(--transition-normal);
}

a.underline-link:hover::after {
  width: 100%;
}

/* Layout Components */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-sm);
}

@media (min-width: 768px) {
  .container {
    padding: 0 var(--space-md);
  }
}

/* Section Styling */
.section {
  padding: var(--space-2xl) 0;
}

.section-alt {
  background-color: var(--bg-section);
}

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

.section-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.section-header p {
  max-width: 600px;
  margin: var(--space-sm) auto 0;
  font-size: 1.25rem;
  color: var(--text-muted);
}

/* Header Styling */
.site-header {
  background-color: var(--bg-dark);
  border-bottom: 1px solid var(--border-subtle);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) 0;
}

.logo {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--primary-green);
  text-decoration: none;
}

.logo:hover {
  color: var(--secondary-purple);
}

/* Navigation */
.nav-menu {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: var(--space-md);
}

.nav-link {
  color: var(--text-secondary);
  font-weight: 500;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link:focus {
  color: var(--primary-green);
  background-color: rgba(0, 255, 136, 0.1);
}

/* Button Components */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 1rem;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-green) 0%, var(--secondary-purple) 100%);
  color: var(--bg-dark);
  box-shadow: var(--shadow-soft);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-elevated);
  background: linear-gradient(135deg, var(--secondary-purple) 0%, var(--primary-green) 100%);
}

.btn-primary:focus {
  outline: 2px solid var(--primary-green);
  outline-offset: 2px;
}

.btn-outline {
  background-color: transparent;
  color: var(--primary-green);
  border: 2px solid var(--primary-green);
  padding: calc(var(--space-sm) - 2px) calc(var(--space-md) - 2px);
}

.btn-outline:hover {
  background-color: var(--primary-green);
  color: var(--bg-dark);
  transform: translateY(-1px);
}

.btn-ghost {
  background-color: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  padding: calc(var(--space-sm) - 1px) calc(var(--space-md) - 1px);
}

.btn-ghost:hover {
  background-color: var(--bg-section);
  color: var(--text-primary);
  border-color: var(--primary-green);
}

/* Card Components */
.card {
  background-color: var(--bg-section);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-green), var(--secondary-purple));
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--primary-green);
  box-shadow: var(--shadow-elevated);
}

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

.card-header {
  margin-bottom: var(--space-sm);
}

.card-title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.card-subtitle {
  color: var(--text-muted);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.card-content {
  color: var(--text-secondary);
  line-height: 1.6;
}

.card-footer {
  margin-top: var(--space-sm);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--border-subtle);
}

/* Grid Layouts */
.grid {
  display: grid;
  gap: var(--space-md);
}

.grid-cols-1 {
  grid-template-columns: 1fr;
}

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

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

@media (max-width: 768px) {
  .grid-cols-2,
  .grid-cols-3 {
    grid-template-columns: 1fr;
  }
}

/* Hero Section */
.hero {
  padding: var(--space-2xl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 30% 70%, rgba(0, 255, 136, 0.1) 0%, transparent 50%),
              radial-gradient(circle at 70% 30%, rgba(189, 0, 255, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: clamp(3rem, 8vw, 6rem);
  margin-bottom: var(--space-md);
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-green) 50%, var(--secondary-purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
}

/* Footer Styling */
.site-footer {
  background-color: var(--bg-darker);
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-2xl) 0 var(--space-md) 0;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.footer-section h4 {
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
  font-family: var(--font-serif);
}

.footer-section p,
.footer-section a {
  color: var(--text-muted);
  margin-bottom: var(--space-xs);
}

.footer-section a:hover {
  color: var(--primary-green);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* Form Components */
.form-group {
  margin-bottom: var(--space-sm);
}

.form-label {
  display: block;
  margin-bottom: var(--space-xs);
  color: var(--text-primary);
  font-weight: 500;
}

.form-input {
  width: 100%;
  padding: var(--space-sm);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background-color: var(--bg-section);
  color: var(--text-primary);
  font-family: var(--font-sans);
  transition: all var(--transition-fast);
}

.form-input:focus {
  outline: none;
  border-color: var(--primary-green);
  box-shadow: 0 0 0 3px rgba(0, 255, 136, 0.1);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }

.py-sm { padding-top: var(--space-sm); padding-bottom: var(--space-sm); }
.py-md { padding-top: var(--space-md); padding-bottom: var(--space-md); }
.py-lg { padding-top: var(--space-lg); padding-bottom: var(--space-lg); }

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

.bg-dark { background-color: var(--bg-dark); }
.bg-darker { background-color: var(--bg-darker); }
.bg-section { background-color: var(--bg-section); }

/* Animation and Interaction Enhancements */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-darker);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(var(--primary-green), var(--secondary-purple));
  border-radius: var(--radius-pill);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--secondary-purple);
}

/* Focus Styles for Accessibility */
*:focus-visible {
  outline: 2px solid var(--primary-green);
  outline-offset: 2px;
}

/* Mobile Navigation Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
}

.mobile-menu-toggle span {
  width: 24px;
  height: 2px;
  background-color: var(--text-primary);
  margin: 3px 0;
  transition: all var(--transition-fast);
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .btn {
    width: 100%;
    max-width: 280px;
  }
}

/* Selection Styles */
::selection {
  background-color: var(--primary-green);
  color: var(--bg-dark);
}

::-moz-selection {
  background-color: var(--primary-green);
  color: var(--bg-dark);
}

/* Image Optimization */
img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
}

/* Loading States */
.loading {
  opacity: 0.7;
  pointer-events: none;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid var(--border-subtle);
  border-top-color: var(--primary-green);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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


/* Cookie Banner Additional Styles for Tailwind */
.cookie-banner-hover-effect:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

@media (prefers-reduced-motion: reduce) {
    .cookie-banner-hover-effect:hover {
        transform: none;
    }
}