:root {
      --primary-green: #00C851;
      --dark-green: #00A142;
      --light-green: #E8F5E8;
      --accent-green: #33D685;
      --forest-green: #0D5D2B;
      
      --gradient-primary: linear-gradient(135deg, #00C851 0%, #00A142 100%);
      --gradient-secondary: linear-gradient(135deg, #E8F5E8 0%, #F0F9F0 100%);
      --border-radius: 16px;
      --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
      --header-height: 80px;
    }

    /* Light Theme Variables */
    :root,
    [data-theme="light"] {
      --bg-primary: #FFFFFF;
      --bg-secondary: #F8FBF8;
      --text-primary: #1A1A1A;
      --text-secondary: #4A5568;
      --text-light: #718096;
      --card-bg: #FFFFFF;
      --header-bg: rgba(255, 255, 255, 0.95);
      --nav-mobile-bg: rgba(255, 255, 255, 0.98);
      --gradient-hero: linear-gradient(135deg, #F8FBF8 0%, #E8F5E8 50%, #D4F4D4 100%);
      --shadow-soft: 0 4px 20px rgba(0, 200, 81, 0.1);
      --shadow-medium: 0 8px 30px rgba(0, 200, 81, 0.15);
      --shadow-strong: 0 20px 60px rgba(0, 200, 81, 0.2);
      --border-color: rgba(0, 200, 81, 0.1);
    }

    /* Dark Theme Variables */
    [data-theme="dark"] {
      --bg-primary: #0F1419;
      --bg-secondary: #1A1F29;
      --text-primary: #FFFFFF;
      --text-secondary: #B8BCC8;
      --text-light: #8892A3;
      --card-bg: #1E2329;
      --header-bg: rgba(15, 20, 25, 0.95);
      --nav-mobile-bg: rgba(15, 20, 25, 0.98);
      --gradient-hero: linear-gradient(135deg, #1A1F29 0%, #242A38 50%, #2A3441 100%);
      --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.3);
      --shadow-medium: 0 8px 30px rgba(0, 0, 0, 0.4);
      --shadow-strong: 0 20px 60px rgba(0, 0, 0, 0.5);
      --border-color: rgba(255, 255, 255, 0.1);
    }

    /* Reset and Base Styles */
    *,
    *::before,
    *::after {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

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

    body {
      font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
      background: var(--bg-primary);
      color: var(--text-primary);
      line-height: 1.7;
      overflow-x: hidden;
      transition: background-color 0.3s ease, color 0.3s ease;
      min-height: 100vh;
    }

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

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

    ::-webkit-scrollbar-thumb {
      background: var(--primary-green);
      border-radius: 4px;
    }

    ::-webkit-scrollbar-thumb:hover {
      background: var(--dark-green);
    }

    /* Skip to content for accessibility */
    .skip-link {
      position: absolute;
      top: -40px;
      left: 6px;
      background: var(--primary-green);
      color: white;
      padding: 8px;
      text-decoration: none;
      border-radius: 4px;
      z-index: 10000;
    }

    .skip-link:focus {
      top: 6px;
    }

    /* Theme Toggle Button */
    .theme-toggle {
      position: fixed;
      top: 50%;
      right: 20px;
      transform: translateY(-50%);
      z-index: 1001;
      background: var(--gradient-primary);
      border: none;
      border-radius: 50%;
      width: 50px;
      height: 50px;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      box-shadow: var(--shadow-medium);
      transition: var(--transition);
      color: white;
      font-size: 18px;
    }

    .theme-toggle:hover,
    .theme-toggle:focus {
      transform: translateY(-50%) scale(1.1);
      box-shadow: var(--shadow-strong);
      outline: 2px solid var(--primary-green);
      outline-offset: 2px;
    }

    .theme-toggle .moon {
      display: none;
    }

    [data-theme="dark"] .theme-toggle .sun {
      display: none;
    }

    [data-theme="dark"] .theme-toggle .moon {
      display: block;
    }

    /* Header Styles */
    header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      background: var(--header-bg);
      border-bottom: 1px solid var(--border-color);
      padding: 15px 0;
      transition: var(--transition);
      height: var(--header-height);
    }

    .header-container {
      max-width: 1400px;
      margin: 0 auto;
      padding: 0 clamp(20px, 5vw, 40px);
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 100%;
    }

    .logo-container {
      display: flex;
      align-items: center;
      gap: clamp(8px, 2vw, 12px);
      text-decoration: none;
      z-index: 1001;
    }

    .logo-container img {
      width: clamp(45px, 8vw, 60px);
      height: clamp(45px, 8vw, 60px);
      object-fit: contain;
      border-radius: 12px;
      transition: var(--transition);
      box-shadow: var(--shadow-soft);
    }

    .logo-container:hover img,
    .logo-container:focus img {
      transform: scale(1.05);
      box-shadow: var(--shadow-medium);
    }

    /* Navigation Styles */
    nav {
      display: flex;
      gap: clamp(4px, 1vw, 8px);
      align-items: center;
    }

    nav a {
      position: relative;
      padding: clamp(8px, 2vw, 12px) clamp(12px, 3vw, 20px);
      text-decoration: none;
      color: var(--text-secondary);
      font-weight: 500;
      font-size: clamp(14px, 2.5vw, 15px);
      border-radius: 12px;
      transition: var(--transition);
      overflow: hidden;
      white-space: nowrap;
    }

    nav a::before {
      content: '';
      position: absolute;
      top: 0;
      left: -100%;
      width: 100%;
      height: 100%;
      background: var(--gradient-primary);
      transition: var(--transition);
      z-index: -1;
    }

    nav a:hover::before,
    nav a:focus::before {
      left: 0;
    }

    nav a:hover,
    nav a:focus {
      color: white;
      transform: translateY(-2px);
      outline: none;
    }

    /* Hamburger Menu */
    .hamburger {
      display: none;
      flex-direction: column;
      cursor: pointer;
      padding: 8px;
      border-radius: 8px;
      transition: var(--transition);
      background: transparent;
      border: none;
      z-index: 1001;
    }

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

    .hamburger span {
      width: 25px;
      height: 3px;
      background: var(--primary-green);
      margin: 3px 0;
      border-radius: 2px;
      transition: var(--transition);
    }

    .hamburger.active span:nth-child(1) {
      transform: rotate(45deg) translate(9px, 9px);
    }

    .hamburger.active span:nth-child(2) {
      opacity: 0;
    }

    .hamburger.active span:nth-child(3) {
      transform: rotate(-45deg) translate(7px, -6px);
    }

    /* Hero Section */
   .hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  padding: clamp(100px, 15vw, 140px) clamp(20px, 5vw, 40px) clamp(60px, 10vw, 100px);

  
  background:
    linear-gradient(
      rgba(245, 255, 245, 0.7),
      rgba(232, 249, 232, 0.7)
    ),
    url("../imgs/791.jpeg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  z-index: 0;
}

    .hero::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background-image: 
        radial-gradient(circle at 20% 20%, rgba(0, 200, 81, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 161, 66, 0.1) 0%, transparent 50%);
      animation: float 20s ease-in-out infinite;
      z-index: 1;
    }

    .hero-content {
      max-width: 900px;
      position: relative;
      z-index: 2;
      animation: fadeInUp 1s ease-out;
    }

    .hero h1 {
      font-family: 'Poppins', sans-serif;
      font-size: clamp(2rem, 8vw, 4.5rem);
      font-weight: 800;
      color: var(--forest-green);
      margin-bottom: clamp(16px, 4vw, 24px);
      line-height: 1.1;
      background: linear-gradient(135deg, #0D5D2B 0%, #00C851 50%, #00A142 100%);
      background-clip: text;
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      color: var(--forest-green); /* Fallback */
    }

    .hero p {
      font-size: clamp(1rem, 3vw, 1.4rem);
      color: #0D5D2B;
      margin-bottom: clamp(30px, 6vw, 40px);
      font-weight: 400;
      line-height: 1.6;
    }

    .hero-button {
      display: inline-block;
      padding: clamp(14px, 3vw, 18px) clamp(30px, 6vw, 40px);
      background: var(--gradient-primary);
      color: white;
      text-decoration: none;
      border-radius: 50px;
      font-weight: 600;
      font-size: clamp(14px, 2.5vw, 16px);
      box-shadow: var(--shadow-medium);
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }

    .hero-button::before {
      content: '';
      position: absolute;
      top: 0;
      left: -100%;
      width: 100%;
      height: 100%;
      background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
      transition: left 0.8s;
    }

    .hero-button:hover::before,
    .hero-button:focus::before {
      left: 100%;
    }

    .hero-button:hover,
    .hero-button:focus {
      transform: translateY(-3px);
      box-shadow: var(--shadow-strong);
      outline: none;
    }

    /* Section Styles */
    section {
      padding: clamp(60px, 12vw, 120px) 0;
      position: relative;
    }

    .container {
      max-width: 1400px;
      margin: 0 auto;
      padding: 0 clamp(20px, 5vw, 40px);
    }

    .section-header {
      text-align: center;
      margin-bottom: clamp(50px, 10vw, 80px);
    }

    .section-title {
      font-family: 'Poppins', sans-serif;
      font-size: clamp(1.8rem, 5vw, 3rem);
      font-weight: 700;
      color: var(--forest-green);
      margin-bottom: 20px;
      position: relative;
    }

    .section-title::after {
      content: '';
      position: absolute;
      bottom: -10px;
      left: 50%;
      transform: translateX(-50%);
      width: 60px;
      height: 4px;
      background: var(--gradient-primary);
      border-radius: 2px;
    }

    .section-description {
      font-size: clamp(1rem, 2.8vw, 1.2rem);
      color: var(--text-secondary);
      max-width: 800px;
      margin: 0 auto;
      line-height: 1.6;
    }

    /* About Section */
    .about-section {
      background: var(--bg-secondary);
      position: relative;
    }

    .about-content {
      background: var(--card-bg);
      border-radius: var(--border-radius);
      padding: clamp(40px, 8vw, 60px);
      box-shadow: var(--shadow-soft);
      text-align: center;
      position: relative;
      overflow: hidden;
      transition: var(--transition);
      border: 1px solid var(--border-color);
    }

    .about-content::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 4px;
      background: var(--gradient-primary);
    }

    /* Grid System */
    .grid {
      display: grid;
      gap: clamp(20px, 4vw, 30px);
      margin-top: clamp(40px, 8vw, 60px);
    }

    .grid-2 { 
      grid-template-columns: repeat(auto-fit, minmax(min(100%, 350px), 1fr)); 
    }
    .grid-3 { 
      grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); 
    }
    .grid-4 { 
      grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); 
    }

    /* Card Styles */
    .card {
      background: var(--card-bg);
      border-radius: var(--border-radius);
      padding: clamp(30px, 6vw, 40px) clamp(20px, 4vw, 30px);
      box-shadow: var(--shadow-soft);
      transition: var(--transition);
      position: relative;
      overflow: hidden;
      border: 1px solid var(--border-color);
      text-align: center;
      height: 100%;
      display: flex;
      flex-direction: column;
    }

    .card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: var(--gradient-primary);
      transform: translateX(-100%);
      transition: var(--transition);
    }

    .card:hover::before {
      transform: translateX(0);
    }

    .card:hover {
      transform: translateY(-10px);
      box-shadow: var(--shadow-strong);
    }

    .card-icon {
      width: clamp(50px, 10vw, 60px);
      height: clamp(50px, 10vw, 60px);
      background: var(--gradient-primary);
      border-radius: 16px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto clamp(20px, 4vw, 24px);
      font-size: clamp(20px, 4vw, 24px);
      color: white;
      flex-shrink: 0;
    }

    .card-title {
      font-family: 'Poppins', sans-serif;
      font-size: clamp(1.1rem, 3vw, 1.3rem);
      font-weight: 600;
      color: var(--forest-green);
      margin-bottom: clamp(12px, 3vw, 16px);
    }

    .card-text {
      color: var(--text-secondary);
      line-height: 1.6;
      font-size: clamp(0.9rem, 2.2vw, 1rem);
      flex-grow: 1;
    }

    /* CTA Section */
    .cta-section {
      background: var(--forest-green);
      color: white;
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .cta-section::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background-image: 
        radial-gradient(circle at 30% 30%, rgba(0, 200, 81, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 70% 70%, rgba(51, 214, 133, 0.2) 0%, transparent 50%);
      animation: float 15s ease-in-out infinite reverse;
    }

    .cta-content {
      position: relative;
      z-index: 2;
    }

    .cta-section .section-title {
      color: white;
    }

    .cta-section .section-title::after {
      background: rgba(255, 255, 255, 0.3);
    }

    .cta-logo {
      width: clamp(120px, 25vw, 180px);
      height: clamp(120px, 25vw, 180px);
      margin: clamp(30px, 6vw, 40px) auto;
      background: var(--gradient-primary);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: var(--shadow-strong);
      animation: pulse 3s ease-in-out infinite;
      overflow: hidden;
    }

    .cta-logo img {
      width: 80%;
      height: 165%;
      object-fit: contain;
      border-radius: 50%;
    }

    .cta-buttons {
      display: flex;
      gap: clamp(15px, 4vw, 20px);
      justify-content: center;
      flex-wrap: wrap;
      margin-top: clamp(30px, 6vw, 40px);
    }

    .cta-button {
      padding: clamp(14px, 3vw, 18px) clamp(28px, 6vw, 36px);
      text-decoration: none;
      border-radius: 50px;
      font-weight: 600;
      font-size: clamp(14px, 2.5vw, 16px);
      transition: var(--transition);
      min-width: clamp(160px, 30vw, 200px);
      display: inline-block;
      text-align: center;
    }

    .cta-button.primary {
      background: var(--primary-green);
      color: white;
      box-shadow: var(--shadow-medium);
    }

    .cta-button.primary:hover,
    .cta-button.primary:focus {
      background: var(--accent-green);
      transform: translateY(-3px);
      box-shadow: var(--shadow-strong);
      outline: none;
    }

    .cta-button.secondary {
      background: white;
      color: var(--forest-green);
      box-shadow: var(--shadow-medium);
    }

    .cta-button.secondary:hover,
    .cta-button.secondary:focus {
      background: var(--light-green);
      transform: translateY(-3px);
      box-shadow: var(--shadow-strong);
      outline: none;
    }

    /* Footer Styles */
    footer {
      background: var(--bg-secondary);
      padding: clamp(50px, 10vw, 60px) 0 clamp(25px, 5vw, 30px);
    }

    .footer-social {
      text-align: center;
      margin-bottom: clamp(30px, 6vw, 40px);
    }

    .footer-social h3 {
      font-family: 'Poppins', sans-serif;
      font-size: clamp(16px, 3vw, 18px);
      color: var(--forest-green);
      margin-bottom: clamp(25px, 5vw, 30px);
    }

    .social-links {
      display: flex;
      justify-content: center;
      gap: clamp(15px, 3vw, 20px);
      flex-wrap: wrap;
    }

    .social-link {
      width: clamp(45px, 8vw, 50px);
      height: clamp(45px, 8vw, 50px);
      background: var(--card-bg);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary-green);
      font-size: clamp(18px, 3.5vw, 20px);
      text-decoration: none;
      box-shadow: var(--shadow-soft);
      transition: var(--transition);
      border: 1px solid var(--border-color);
    }

    .social-link:hover,
    .social-link:focus {
      background: var(--primary-green);
      color: white;
      transform: translateY(-5px);
      box-shadow: var(--shadow-medium);
      outline: none;
    }

    .footer-copyright {
      text-align: center;
      padding: clamp(25px, 5vw, 30px) 0;
      border-top: 1px solid var(--border-color);
      color: var(--text-light);
      font-size: clamp(12px, 2.5vw, 14px);
    }

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

    @keyframes float {
      0%, 100% { 
        transform: translateY(0px) rotate(0deg); 
      }
      33% { 
        transform: translateY(-10px) rotate(1deg); 
      }
      66% { 
        transform: translateY(5px) rotate(-1deg); 
      }
    }

    @keyframes pulse {
      0%, 100% { 
        transform: scale(1); 
      }
      50% { 
        transform: scale(1.05); 
      }
    }

    /* Scroll Animation Classes */
    .fade-in {
      opacity: 0;
      transform: translateY(30px);
      transition: all 0.6s ease;
    }

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

    /* Error State */
    .error-state {
      display: none;
      text-align: center;
      padding: 40px 20px;
      color: var(--text-secondary);
    }

    .error-state.show {
      display: block;
    }

    /* Loading State */
    .loading {
      opacity: 0.5;
      pointer-events: none;
    }

    /* Mobile Navigation */
    @media (max-width: 768px) {
      .hamburger {
        display: flex;
      }

      nav {
        position: fixed;
        top: var(--header-height);
        left: -100%;
        width: 100%;
        height: calc(100vh - var(--header-height));
        background: var(--nav-mobile-bg);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding: clamp(40px, 8vw, 60px) 20px;
        transition: var(--transition);
        gap: 0;
        border-right: 1px solid var(--border-color);
        box-shadow: var(--shadow-medium);
        overflow-y: auto;
      }

      nav.active {
        left: 0;
      }

      nav a {
        width: 90%;
        max-width: 300px;
        text-align: center;
        padding: clamp(15px, 4vw, 20px);
        margin: clamp(8px, 2vw, 10px) 0;
        font-size: clamp(16px, 4vw, 18px);
        background: var(--card-bg);
        border: 1px solid var(--border-color);
        border-radius: 12px;
        color: var(--text-primary);
        box-shadow: var(--shadow-soft);
        font-weight: 600;
      }

      nav a:hover,
      nav a:focus {
        background: var(--primary-green);
        color: white;
        transform: translateY(-2px);
        box-shadow: var(--shadow-medium);
      }

      nav a::before {
        display: none;
      }

      .grid-4,
      .grid-3,
      .grid-2 {
        grid-template-columns: 1fr;
      }

      .cta-buttons {
        flex-direction: column;
        align-items: center;
      }

      .cta-button {
        width: 100%;
        max-width: 280px;
      }

      .theme-toggle {
        right: 15px;
        width: 45px;
        height: 45px;
        font-size: 16px;
      }
    }

    /* Small Mobile Devices */
    @media (max-width: 480px) {
      .hero {
        min-height: 80vh;
        padding: calc(var(--header-height) + 20px) 15px 40px;
      }

      .card {
        padding: 25px 18px;
      }

      .about-content {
        padding: 30px 20px;
      }

      .theme-toggle {
        width: 40px;
        height: 40px;
        font-size: 14px;
        right: 12px;
      }
    }

    /* Extra Small Devices */
    @media (max-width: 320px) {
      .container {
        padding: 0 15px;
      }
      
      .header-container {
        padding: 0 15px;
      }

      .grid {
        gap: 15px;
      }
      
      .card {
        padding: 20px 15px;
      }
      
      .cta-button {
        min-width: 140px;
        padding: 12px 24px;
      }

      .theme-toggle {
        width: 35px;
        height: 35px;
        font-size: 12px;
        right: 10px;
      }
    }

    /* High Contrast Mode */
    @media (prefers-contrast: high) {
      .card,
      .about-content {
        border-width: 2px;
        border-style: solid;
        border-color: var(--primary-green);
      }
    }

    /* Reduced Motion */
    @media (prefers-reduced-motion: reduce) {
      *,
      *::before,
      *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
      }
      
      .card:hover,
      .hero-button:hover,
      .cta-button:hover,
      .social-link:hover {
        transform: none;
      }
    }

    /* Print Styles */
    @media print {
      .hamburger,
      .hero-button,
      .cta-buttons,
      .theme-toggle,
      .social-links {
        display: none;
      }
      
      body {
        color: black !important;
        background: white !important;
      }
      
      section {
        page-break-inside: avoid;
      }
      
      .card {
        border: 1px solid #ccc;
        box-shadow: none;
      }
    }

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

    button:focus,
    a:focus {
      outline: 2px solid var(--primary-green);
      outline-offset: 2px;
    }

    /* Fallback for older browsers */
    .no-js .fade-in {
      opacity: 1;
      transform: none;
    }

    .no-js nav.active {
      display: flex;
    }