/* ===================================
   RedEarthOne Farm Management Website
   Design System & Global Styles
   =================================== */

/* CSS Variables - Design System */
:root {
  /* Colors */
  --charcoal: #121212;
  --dark-grey: #1E1E1E;
  --soft-sand: #F5F2EE;
  --earth-red: #8B2C1F;
  --clay-brown: #6B5045;
  --warm-sand: #E6E2DD;
  --stone-grey: #D6CEC2;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --heading-weight: 600;
  --heading-weight-bold: 700;
  --body-weight: 400;
  --line-height: 1.6;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;

  /* Layout */
  --max-width: 1200px;
  --header-height: 80px;

  /* Transitions */
  --transition-speed: 0.3s;
}

/* ===================================
   Reset & Base Styles
   =================================== */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-weight: var(--body-weight);
  line-height: var(--line-height);
  color: var(--stone-grey);
  background-color: var(--charcoal);
  overflow-x: hidden;
}

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

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

button {
  font-family: var(--font-family);
  cursor: pointer;
  border: none;
  transition: all var(--transition-speed) ease;
}

/* ===================================
   Typography
   =================================== */

h1, h2, h3, h4, h5, h6 {
  color: var(--warm-sand);
  font-weight: var(--heading-weight);
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: 3rem;
  font-weight: var(--heading-weight-bold);
}

h2 {
  font-size: 2.5rem;
}

h3 {
  font-size: 2rem;
}

h4 {
  font-size: 1.5rem;
}

h5 {
  font-size: 1.25rem;
}

h6 {
  font-size: 1rem;
}

p {
  margin-bottom: var(--spacing-sm);
}

/* ===================================
   Header & Navigation
   =================================== */

.header {
  background-color: var(--charcoal);
  height: var(--header-height);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid rgba(230, 226, 221, 0.1);
}

.header-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  height: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.5rem;
  font-weight: var(--heading-weight-bold);
  color: var(--warm-sand);
}

.logo-icon {
  width: 32px;
  height: 32px;
  background-color: var(--earth-red);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--warm-sand);
  font-weight: bold;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-md);
  align-items: center;
}

.nav-menu a {
  color: var(--stone-grey);
  font-weight: 500;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 4px;
  transition: color var(--transition-speed) ease;
}

.nav-menu a:hover {
  color: var(--warm-sand);
}

.nav-cta {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
}

.btn {
  padding: 0.75rem 1.5rem;
  border-radius: 6px;
  font-weight: 600;
  transition: all var(--transition-speed) ease;
  display: inline-block;
  text-align: center;
}

.btn-primary {
  background-color: var(--earth-red);
  color: var(--warm-sand);
}

.btn-primary:hover {
  background-color: #A03529;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(139, 44, 31, 0.3);
}

.btn-secondary {
  background-color: transparent;
  color: var(--warm-sand);
  border: 2px solid var(--clay-brown);
}

.btn-secondary:hover {
  background-color: var(--clay-brown);
  border-color: var(--clay-brown);
}

.btn-outline {
  background-color: transparent;
  color: var(--stone-grey);
  border: 1px solid var(--stone-grey);
}

.btn-outline:hover {
  background-color: rgba(230, 226, 221, 0.1);
  color: var(--warm-sand);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--warm-sand);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ===================================
   Layout & Containers
   =================================== */

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

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

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

.section-light {
  background-color: var(--soft-sand);
  color: #333;
}

.section-light h1,
.section-light h2,
.section-light h3,
.section-light h4,
.section-light h5,
.section-light h6 {
  color: #333;
}

.section-light p {
  color: #555;
}

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

.section-subtitle {
  font-size: 1.125rem;
  color: var(--stone-grey);
  margin-bottom: var(--spacing-md);
}

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

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* ===================================
   Hero Section
   =================================== */

.hero {
  background-color: var(--charcoal);
  padding: var(--spacing-xl) 0;
  min-height: calc(100vh - var(--header-height));
  display: flex;
  align-items: center;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
}

.hero-text h1 {
  font-size: 3.5rem;
  margin-bottom: var(--spacing-md);
  line-height: 1.1;
}

.hero-text p {
  font-size: 1.25rem;
  color: var(--stone-grey);
  margin-bottom: var(--spacing-md);
}

.hero-cta {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

.hero-image {
  position: relative;
}

.hero-image img {
  border-radius: 8px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

/* ===================================
   Trust Strip
   =================================== */

.trust-strip {
  background-color: var(--dark-grey);
  padding: var(--spacing-lg) 0;
  border-top: 1px solid rgba(230, 226, 221, 0.1);
  border-bottom: 1px solid rgba(230, 226, 221, 0.1);
}

.trust-items {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
  text-align: center;
}

.trust-item {
  padding: var(--spacing-md);
}

.trust-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto var(--spacing-sm);
  background-color: rgba(139, 44, 31, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--earth-red);
  font-size: 1.5rem;
}

.trust-item h4 {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-xs);
}

.trust-item p {
  font-size: 0.9rem;
  color: var(--stone-grey);
}

/* ===================================
   Feature Cards
   =================================== */

.feature-card {
  background-color: rgba(230, 226, 221, 0.05);
  padding: var(--spacing-md);
  border-radius: 8px;
  transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
  border: 1px solid rgba(230, 226, 221, 0.1);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.feature-icon {
  width: 50px;
  height: 50px;
  background-color: var(--earth-red);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--warm-sand);
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}

.feature-card h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}

.feature-card p {
  color: var(--stone-grey);
  margin-bottom: var(--spacing-sm);
}

.feature-card ul {
  list-style: none;
  padding-left: 0;
}

.feature-card li {
  padding: var(--spacing-xs) 0;
  color: var(--stone-grey);
  position: relative;
  padding-left: 1.5rem;
}

.feature-card li:before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--earth-red);
  font-weight: bold;
}

/* ===================================
   Pricing Cards
   =================================== */

.pricing-banner {
  background: linear-gradient(135deg, var(--earth-red), var(--clay-brown));
  padding: var(--spacing-md);
  text-align: center;
  border-radius: 8px;
  margin-bottom: var(--spacing-lg);
}

.pricing-banner h3 {
  margin-bottom: var(--spacing-xs);
}

.pricing-banner p {
  color: var(--warm-sand);
  opacity: 0.9;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.pricing-card {
  background-color: rgba(230, 226, 221, 0.05);
  padding: var(--spacing-md);
  border-radius: 8px;
  border: 2px solid rgba(230, 226, 221, 0.1);
  display: flex;
  flex-direction: column;
}

.pricing-card.featured {
  border-color: var(--earth-red);
  box-shadow: 0 8px 32px rgba(139, 44, 31, 0.2);
  transform: scale(1.05);
}

.pricing-header {
  text-align: center;
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid rgba(230, 226, 221, 0.1);
  margin-bottom: var(--spacing-md);
}

.pricing-tier {
  font-size: 1.5rem;
  color: var(--warm-sand);
  font-weight: var(--heading-weight-bold);
  margin-bottom: var(--spacing-xs);
}

.pricing-price {
  font-size: 2.5rem;
  color: var(--earth-red);
  font-weight: var(--heading-weight-bold);
  margin-bottom: var(--spacing-xs);
}

.pricing-period {
  color: var(--stone-grey);
  font-size: 0.9rem;
}

.pricing-features {
  flex-grow: 1;
  margin-bottom: var(--spacing-md);
}

.pricing-features ul {
  list-style: none;
}

.pricing-features li {
  padding: var(--spacing-xs) 0;
  color: var(--stone-grey);
  position: relative;
  padding-left: 1.5rem;
}

.pricing-features li:before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--earth-red);
  font-weight: bold;
}

/* ===================================
   Form Styles
   =================================== */

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  color: var(--warm-sand);
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid rgba(230, 226, 221, 0.2);
  border-radius: 6px;
  background-color: rgba(230, 226, 221, 0.05);
  color: var(--warm-sand);
  font-family: var(--font-family);
  font-size: 1rem;
  transition: border-color var(--transition-speed) ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--earth-red);
  background-color: rgba(230, 226, 221, 0.08);
}

.form-group textarea {
  resize: vertical;
  min-height: 150px;
}

.form-error {
  color: #ff6b6b;
  font-size: 0.875rem;
  margin-top: var(--spacing-xs);
  display: none;
}

.form-group.error .form-error {
  display: block;
}

.form-group.error input,
.form-group.error select,
.form-group.error textarea {
  border-color: #ff6b6b;
}

/* ===================================
   Footer
   =================================== */

.footer {
  background-color: var(--charcoal);
  border-top: 1px solid rgba(230, 226, 221, 0.1);
  padding: var(--spacing-lg) 0 var(--spacing-md);
}

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

.footer-section h4 {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-sm);
}

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

.footer-section ul li {
  margin-bottom: var(--spacing-xs);
}

.footer-section ul li a {
  color: var(--stone-grey);
}

.footer-section ul li a:hover {
  color: var(--warm-sand);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(230, 226, 221, 0.1);
  color: var(--stone-grey);
  font-size: 0.9rem;
}

/* ===================================
   Utilities
   =================================== */

.text-center {
  text-align: center;
}

.text-accent {
  color: var(--earth-red);
}

.mb-sm {
  margin-bottom: var(--spacing-sm);
}

.mb-md {
  margin-bottom: var(--spacing-md);
}

.mb-lg {
  margin-bottom: var(--spacing-lg);
}

.mt-sm {
  margin-top: var(--spacing-sm);
}

.mt-md {
  margin-top: var(--spacing-md);
}

.mt-lg {
  margin-top: var(--spacing-lg);
}

/* ===================================
   Responsive Design
   =================================== */

@media (max-width: 1024px) {
  :root {
    --spacing-xl: 4rem;
  }

  h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 2rem;
  }

  .hero-text h1 {
    font-size: 2.75rem;
  }
}

@media (max-width: 768px) {
  :root {
    --spacing-lg: 3rem;
    --spacing-xl: 3rem;
  }

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

  .nav {
    position: fixed;
    top: var(--header-height);
    left: -100%;
    width: 100%;
    height: calc(100vh - var(--header-height));
    background-color: var(--charcoal);
    flex-direction: column;
    padding: var(--spacing-md);
    transition: left var(--transition-speed) ease;
  }

  .nav.active {
    left: 0;
  }

  .nav-menu {
    flex-direction: column;
    width: 100%;
  }

  .nav-menu li {
    width: 100%;
  }

  .nav-menu a {
    display: block;
    padding: var(--spacing-sm);
  }

  .nav-cta {
    flex-direction: column;
    width: 100%;
  }

  .nav-cta .btn {
    width: 100%;
  }

  .hero-content {
    grid-template-columns: 1fr;
  }

  .hero-text h1 {
    font-size: 2rem;
  }

  .hero-text p {
    font-size: 1.125rem;
  }

  .hero-cta {
    flex-direction: column;
  }

  .hero-cta .btn {
    width: 100%;
  }

  .pricing-card.featured {
    transform: scale(1);
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.75rem;
  }
}

@media (max-width: 480px) {
  :root {
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 2.5rem;
  }

  .container {
    padding: 0 var(--spacing-sm);
  }

  .hero-text h1 {
    font-size: 1.75rem;
  }

  .pricing-price {
    font-size: 2rem;
  }
}

/* ===================================
   Animations
   =================================== */

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

/* Smooth scrolling for anchor links */
html {
  scroll-padding-top: var(--header-height);
}