/* ===== CSS VARIABLES ===== */
:root {
  /* Colors */
  --primary-color: #2E7D32;
  --primary-light: #388E3C;
  --primary-dark: #1B5E20;
  --secondary-color: #4CAF50;
  
  --blue: #2196F3;
  --green: #4CAF50;
  --orange: #FF9800;
  --purple: #9C27B0;
  
  --white: #FFFFFF;
  --black: #000000;
  --gray-50: #FAFAFA;
  --gray-100: #F5F5F5;
  --gray-200: #EEEEEE;
  --gray-300: #E0E0E0;
  --gray-400: #BDBDBD;
  --gray-500: #9E9E9E;
  --gray-600: #757575;
  --gray-700: #616161;
  --gray-800: #424242;
  --gray-900: #212121;
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  
  /* Spacing */
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 0.75rem;
  --spacing-4: 1rem;
  --spacing-5: 1.25rem;
  --spacing-6: 1.5rem;
  --spacing-8: 2rem;
  --spacing-10: 2.5rem;
  --spacing-12: 3rem;
  --spacing-16: 4rem;
  --spacing-20: 5rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  
  /* 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-normal: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;
}

/* ===== RESET & BASE ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--gray-800);
  background-color: var(--white);
  overflow-x: hidden;
}

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

a {
  text-decoration: none;
  color: inherit;
}

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

/* ===== UTILITIES ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-4);
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-16);
}

.section-title {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: var(--spacing-4);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--gray-600);
  max-width: 600px;
  margin: 0 auto;
}

/* ===== 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(--gray-200);
  z-index: 1000;
  transition: var(--transition-normal);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-4) 0;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: var(--spacing-4);
  padding-right: var(--spacing-4);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  font-weight: 600;
  font-size: var(--font-size-xl);
  color: var(--primary-color);
}

.nav-icon {
  font-size: var(--font-size-2xl);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-8);
}

.nav-link {
  font-weight: 500;
  color: var(--gray-700);
  transition: var(--transition-fast);
  position: relative;
}

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--primary-color);
  border-radius: 1px;
}

.nav-mobile-toggle {
  display: none;
  padding: var(--spacing-2);
  cursor: pointer;
}

/* ===== HERO SECTION ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 50%, var(--secondary-color) 100%);
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('../assets/images/palm-bg.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(46, 125, 50, 0.8);
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  color: var(--white);
}

.hero-card {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-12);
  box-shadow: var(--shadow-xl);
  color: var(--gray-800);
  max-width: 600px;
  margin: 0 auto;
}

.hero-icon {
  font-size: 4rem;
  color: var(--primary-color);
  margin-bottom: var(--spacing-4);
}

.hero-title {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  margin-bottom: var(--spacing-2);
  color: var(--primary-color);
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--spacing-4);
  color: var(--gray-700);
}

.hero-description {
  font-size: var(--font-size-lg);
  color: var(--gray-600);
  margin-bottom: var(--spacing-8);
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-4);
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== FEATURES SECTION ===== */
.features {
  padding: var(--spacing-20) 0;
  background: var(--gray-50);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-6);
}

.feature-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-8);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  transform: scaleX(0);
  transition: var(--transition-normal);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-icon-container {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-6);
  position: relative;
  overflow: hidden;
}

.feature-icon-container.blue { background: rgba(33, 150, 243, 0.1); }
.feature-icon-container.green { background: rgba(76, 175, 80, 0.1); }
.feature-icon-container.orange { background: rgba(255, 152, 0, 0.1); }
.feature-icon-container.purple { background: rgba(156, 39, 176, 0.1); }

.feature-icon-container.blue .feature-icon { color: var(--blue); }
.feature-icon-container.green .feature-icon { color: var(--green); }
.feature-icon-container.orange .feature-icon { color: var(--orange); }
.feature-icon-container.purple .feature-icon { color: var(--purple); }

.feature-icon {
  font-size: 2rem;
}

.feature-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--spacing-2);
  color: var(--gray-900);
}

.feature-description {
  color: var(--gray-600);
  margin-bottom: var(--spacing-4);
}

.feature-arrow {
  position: absolute;
  top: var(--spacing-4);
  right: var(--spacing-4);
  color: var(--gray-400);
  transition: var(--transition-fast);
}

.feature-card:hover .feature-arrow {
  color: var(--primary-color);
  transform: translateX(2px);
}

/* ===== ABOUT SECTION ===== */
.about {
  padding: var(--spacing-20) 0;
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-16);
  align-items: center;
}

.about-text .section-title {
  text-align: left;
  margin-bottom: var(--spacing-6);
}

.about-description {
  font-size: var(--font-size-lg);
  color: var(--gray-600);
  line-height: 1.8;
  margin-bottom: var(--spacing-8);
}

.about-stats {
  display: flex;
  gap: var(--spacing-8);
}

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

.stat-number {
  display: block;
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: var(--spacing-1);
}

.stat-label {
  color: var(--gray-600);
  font-size: var(--font-size-sm);
}

.about-image {
  display: flex;
  justify-content: center;
  align-items: center;
}

.image-placeholder {
  width: 300px;
  height: 300px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 5rem;
}

/* ===== FOOTER ===== */
.footer {
  background: var(--gray-900);
  color: var(--white);
  padding: var(--spacing-12) 0 var(--spacing-6) 0;
  position: relative;
  z-index: 1;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--spacing-8);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  font-weight: 600;
  font-size: var(--font-size-xl);
}

.footer-icon {
  font-size: var(--font-size-2xl);
  color: var(--secondary-color);
}

.footer-links {
  display: flex;
  gap: var(--spacing-6);
}

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

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

.footer-info {
  color: var(--gray-500);
  font-size: var(--font-size-sm);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }
  
  .nav-mobile-toggle {
    display: block;
  }
  
  .hero-card {
    margin: var(--spacing-4);
    padding: var(--spacing-8);
  }
  
  .hero-title {
    font-size: var(--font-size-3xl);
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .about-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .about-stats {
    justify-content: center;
  }
  
  .footer-content {
    flex-direction: column;
    text-align: center;
  }
}