/* Base styles and variables */
:root {
  --color-primary: #10B981; /* Fresh protein green */
  --color-primary-dark: #059669; /* Darker green for hover states */
  --color-primary-light: #D1FAE5; /* Light green for subtle backgrounds */
  --color-secondary: #111827; /* Dark charcoal for primary text / headings */
  --color-text: #4B5563; /* Deep grey for body text */
  --color-text-light: #6B7280;
  --color-bg: #F9FAFB; /* Off-white background */
  --color-surface: #FFFFFF; /* Pure white for cards */
  --color-border: #E5E7EB;
  
  --font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  --spacing-section: 6rem;
  --border-radius-sm: 0.5rem;
  --border-radius-md: 1rem;
  --border-radius-lg: 1.5rem;
  --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);
  
  --transition-speed: 0.3s;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-secondary);
  font-weight: 700;
  line-height: 1.2;
  margin-top: 0;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

h2 {
  font-size: clamp(2rem, 4vw, 2.5rem);
  letter-spacing: -0.01em;
  margin-bottom: 1.25rem;
}

h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

p {
  margin-top: 0;
  margin-bottom: 1.5rem;
}

.text-lead {
  font-size: 1.125rem;
  color: var(--color-text-light);
  max-width: 700px;
}

/* Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

section {
  padding: var(--spacing-section) 0;
}

section:nth-child(even) {
  background-color: var(--color-surface);
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 1000;
  border-bottom: 1px solid var(--color-border);
  transition: all var(--transition-speed) ease;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 4.5rem;
}

.brand {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-secondary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand-dot {
  color: var(--color-primary);
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  text-decoration: none;
  color: var(--color-text);
  font-weight: 500;
  transition: color var(--transition-speed);
}

.nav-links a:hover, .nav-links a.active {
  color: var(--color-primary);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.mobile-menu-btn svg {
  width: 24px;
  height: 24px;
  stroke: var(--color-secondary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: 9999px;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-speed);
  cursor: pointer;
  border: none;
  font-size: 1rem;
}

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

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-secondary);
  border: 2px solid var(--color-border);
}

.btn-outline:hover {
  border-color: var(--color-secondary);
  background-color: var(--color-surface);
}

.btn-group {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}

/* Hero Section */
.hero {
  padding: calc(var(--spacing-section) + 4.5rem) 0 var(--spacing-section);
  min-height: 90vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--color-bg) 0%, #edf2f7 100%);
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--color-primary-light) 0%, rgba(209, 250, 229, 0) 70%);
  top: -200px;
  right: -200px;
  border-radius: 50%;
  opacity: 0.6;
  z-index: 0;
  pointer-events: none;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 600px;
}

.hero-tagline {
  color: var(--color-primary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
  display: block;
}

.hero-image {
  width: 100%;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  background-color: var(--color-border);
  aspect-ratio: 4/3;
  object-fit: cover;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

/* Features (Host Value) Section */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.feature-card {
  background-color: var(--color-surface);
  padding: 2.5rem 2rem;
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(0,0,0,0.03);
  transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background-color: var(--color-primary-light);
  color: var(--color-primary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  margin-bottom: 1.5rem;
}

/* How It Works Section */
.steps {
  display: flex;
  justify-content: space-between;
  margin-top: 4rem;
  position: relative;
}

.steps::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 10%;
  right: 10%;
  height: 2px;
  background-color: var(--color-primary-light);
  z-index: 0;
}

.step {
  flex: 1;
  text-align: center;
  position: relative;
  z-index: 1;
  padding: 0 1rem;
}

.step-number {
  width: 80px;
  height: 80px;
  background-color: var(--color-surface);
  border: 2px solid var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 auto 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-speed);
}

.step:hover .step-number {
  background-color: var(--color-primary);
  color: white;
}

/* Designed For Section */
.locations-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}

.location-item {
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  padding: 2rem 1.5rem;
  border-radius: var(--border-radius-md);
  text-align: center;
  border: 1px solid var(--color-border);
}

.location-item svg {
  margin: 0 auto 1rem;
  color: var(--color-text-light);
}

.location-item h4 {
  margin-bottom: 0.5rem;
}

.location-item p {
  font-size: 0.875rem;
  margin-bottom: 0;
  color: var(--color-text-light);
}

/* Business Model & About */
.two-column {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.model-list {
  list-style: none;
  padding: 0;
}

.model-list li {
  position: relative;
  padding-left: 2rem;
  margin-bottom: 1.25rem;
  font-size: 1.05rem;
}

.model-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-primary);
  font-weight: bold;
}

/* CTA Section */
.cta-section {
  background-color: var(--color-secondary);
  color: white;
  text-align: center;
  padding: 5rem 0;
}

.cta-section h2 {
  color: white;
}

.cta-section .text-lead {
  color: rgba(255,255,255,0.8);
  margin: 0 auto 2rem;
}

/* Contact Section */
.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 4rem;
}

.contact-info {
  padding-right: 2rem;
}

.contact-method {
  margin-bottom: 2rem;
}

.contact-method h4 {
  margin-bottom: 0.25rem;
}

.contact-form {
  background-color: var(--color-surface);
  padding: 2.5rem;
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-lg);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--color-secondary);
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  font-family: var(--font-family);
  font-size: 1rem;
  transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
  background-color: var(--color-bg);
  box-sizing: border-box;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
  background-color: var(--color-surface);
}

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

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.alert {
  padding: 1rem;
  border-radius: var(--border-radius-sm);
  margin-bottom: 1.5rem;
  font-weight: 500;
}

.alert-success {
  background-color: var(--color-primary-light);
  color: var(--color-primary-dark);
  border: 1px solid #a7f3d0;
}

.alert-error {
  background-color: #fee2e2;
  color: #b91c1c;
  border: 1px solid #fecaca;
}

/* Footer */
footer {
  background-color: var(--color-secondary);
  color: rgba(255,255,255,0.6);
  padding: 3rem 0;
  text-align: center;
  font-size: 0.875rem;
}

footer a {
  color: rgba(255,255,255,0.6);
  text-decoration: underline;
}

footer a:hover {
  color: white;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

/* Animations */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

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

/* Delay modifiers */
.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }

/* Responsive Design */
@media (max-width: 992px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-content {
    margin: 0 auto;
  }
  
  .btn-group {
    justify-content: center;
  }
  
  .two-column {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .contact-wrapper {
    grid-template-columns: 1fr;
  }
  
  .steps::before {
    display: none;
  }
}

@media (max-width: 768px) {
  :root {
    --spacing-section: 4rem;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-surface);
    flex-direction: column;
    padding: 1.5rem;
    gap: 1.5rem;
    box-shadow: var(--shadow-md);
    transform: translateY(-10px);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-speed);
  }
  
  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  
  .steps {
    flex-direction: column;
    gap: 2rem;
  }
  
  .contact-form {
    padding: 1.5rem;
  }
}