:root {
  /* Brand Colors - Earth + Tech + Value */
  --earth-dark: #2d5016;
  --earth-medium: #4a7c2f;
  --earth-light: #6b9b4c;
  --earth-pale: #e8f5e1;
  
  --tech-dark: #1a4d8f;
  --tech-medium: #2563ab;
  --tech-light: #3b82f6;
  --tech-pale: #dbeafe;
  
  --value-dark: #d97706;
  --value-medium: #f59e0b;
  --value-light: #fbbf24;
  --value-pale: #fef3c7;
  
  --neutral-900: #1f2937;
  --neutral-800: #374151;
  --neutral-700: #4b5563;
  --neutral-600: #6b7280;
  --neutral-500: #9ca3af;
  --neutral-400: #d1d5db;
  --neutral-300: #e5e7eb;
  --neutral-200: #f3f4f6;
  --neutral-100: #f9fafb;
  --white: #ffffff;
  
  /* Typography */
  --font-heading: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  /* 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-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;
}

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

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

body {
  font-family: var(--font-body);
  color: var(--neutral-800);
  background-color: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--neutral-900);
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
}

p {
  margin-bottom: var(--spacing-md);
  font-size: 1.125rem;
  color: var(--neutral-700);
}

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

a:hover {
  color: var(--tech-dark);
}

/* Container */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-narrow {
  max-width: 960px;
}

.container-wide {
  max-width: 1440px;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--neutral-200);
  z-index: 1000;
  transition: box-shadow var(--transition-base);
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
}

.navbar-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-md);
  max-width: 1440px;
  margin: 0 auto;
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--earth-dark);
  text-decoration: none;
}

.navbar-logo span {
  color: var(--value-medium);
}

.navbar-menu {
  display: none;
  list-style: none;
  gap: var(--spacing-lg);
}

.navbar-menu > li {
  position: relative;
}

.navbar-menu > li.has-dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: var(--white);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-xs) 0;
  margin-top: var(--spacing-xs);
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-fast);
  z-index: 1000;
}

.dropdown-menu li {
  margin: 0;
}

.dropdown-menu a {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--neutral-700);
  font-weight: 500;
  transition: all var(--transition-fast);
}

.dropdown-menu a:hover {
  background: var(--earth-pale);
  color: var(--earth-dark);
}

.navbar-menu a {
  font-weight: 500;
  color: var(--neutral-700);
  transition: color var(--transition-fast);
}

.navbar-menu a:hover {
  color: var(--earth-dark);
}

.navbar-cta {
  display: none;
}

.navbar-toggle {
  display: block;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.navbar-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--neutral-700);
  margin: 5px 0;
  transition: all var(--transition-fast);
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 73px;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  padding: var(--spacing-lg);
  z-index: 999;
}

.mobile-menu.active {
  display: block;
}

.mobile-menu-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.mobile-menu-list a {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--neutral-700);
  display: block;
  padding: var(--spacing-sm);
}

/* Hero Section */
.hero {
  padding-top: 120px;
  padding-bottom: var(--spacing-3xl);
  background: linear-gradient(135deg, var(--earth-pale) 0%, var(--white) 50%, var(--tech-pale) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><g fill="%234a7c2f" fill-opacity="0.03"><path d="M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z"/></g></g></svg>') repeat;
  opacity: 0.4;
  z-index: 0;
}

.hero-container {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.hero-content {
  max-width: 800px;
  text-align: center;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  background: var(--white);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--earth-dark);
  margin-bottom: var(--spacing-md);
  box-shadow: var(--shadow-sm);
}

.hero-badge::before {
  content: '🌱';
  font-size: 1.2rem;
}

.hero h1 {
  margin-bottom: var(--spacing-md);
  background: linear-gradient(135deg, var(--earth-dark) 0%, var(--tech-dark) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.5rem;
  color: var(--neutral-600);
  margin-bottom: var(--spacing-xl);
  line-height: 1.4;
}

.hero-cta {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  align-items: center;
  margin-bottom: var(--spacing-xl);
}

.hero-stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
}

.stat-card {
  background: var(--white);
  padding: var(--spacing-md);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  text-align: center;
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--earth-dark);
  display: block;
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--neutral-600);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-md) var(--spacing-xl);
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--earth-dark);
  color: var(--white);
  border-color: var(--earth-dark);
}

.btn-primary:hover {
  background: var(--earth-medium);
  border-color: var(--earth-medium);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: var(--white);
  color: var(--earth-dark);
  border-color: var(--earth-dark);
}

.btn-secondary:hover {
  background: var(--earth-pale);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-large {
  padding: 1.25rem 2.5rem;
  font-size: 1.25rem;
}

/* Problem Section */
.problem-section {
  padding: var(--spacing-3xl) 0;
  background: var(--white);
}

.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--spacing-2xl);
}

.section-badge {
  display: inline-block;
  background: var(--value-pale);
  color: var(--value-dark);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.problem-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  max-width: 1000px;
  margin: 0 auto;
}

.problem-card {
  background: var(--neutral-100);
  border: 2px solid var(--neutral-200);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  position: relative;
}

.problem-card::before {
  content: '⚠️';
  position: absolute;
  top: -20px;
  left: var(--spacing-xl);
  font-size: 2.5rem;
  background: var(--white);
  padding: var(--spacing-xs);
  border-radius: 50%;
}

.problem-card h3 {
  margin-top: var(--spacing-md);
  color: var(--neutral-800);
}

/* Solution Section */
.solution-section {
  padding: var(--spacing-3xl) 0;
  background: linear-gradient(135deg, var(--tech-pale) 0%, var(--white) 100%);
}

.solution-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
}

.solution-feature {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.solution-icon {
  width: 64px;
  height: 64px;
  background: var(--earth-dark);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  box-shadow: var(--shadow-md);
}

.solution-feature h3 {
  color: var(--earth-dark);
}

/* Value Props Section */
.value-props-section {
  padding: var(--spacing-3xl) 0;
  background: var(--white);
}

.value-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

.value-card {
  background: var(--white);
  border: 2px solid var(--neutral-200);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: all var(--transition-base);
}

.value-card:hover {
  border-color: var(--earth-medium);
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
}

.value-number {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--earth-medium) 0%, var(--earth-dark) 100%);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
}

/* Footer */
.footer {
  background: var(--neutral-900);
  color: var(--neutral-400);
  padding: var(--spacing-2xl) 0 var(--spacing-md);
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-brand h3 {
  color: var(--white);
  margin-bottom: var(--spacing-sm);
}

.footer-links h4 {
  color: var(--white);
  font-size: 1rem;
  margin-bottom: var(--spacing-md);
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  color: var(--neutral-400);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--white);
}

.footer-bottom {
  border-top: 1px solid var(--neutral-800);
  padding-top: var(--spacing-md);
  text-align: center;
  font-size: 0.875rem;
}

/* Responsive Design */
@media (min-width: 768px) {
  .navbar-menu {
    display: flex;
  }
  
  .navbar-cta {
    display: block;
  }
  
  .navbar-toggle {
    display: none;
  }
  
  .hero-cta {
    flex-direction: row;
    justify-content: center;
  }
  
  .hero-stats {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .problem-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .solution-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .value-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .footer-content {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .solution-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

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

.fade-in-up {
  animation: fadeInUp 0.8s ease-out forwards;
}

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

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

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