/* Base Styles */
:root {
  --primary: #2E7D32;
  --secondary: #009688;
  --accent: #4CAF50;
  --highlight: #FF6B6B;
  --text: #212121;
  --text-light: #757575;
  --light: #FFFFFF;
  --gray: #F5F5F5;
  --gray-dark: #E0E0E0;
  --shadow: 0 4px 12px rgba(46, 125, 50, 0.15);
  --gradient: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  --radius: 10px;
  --transition: all 0.3s ease;
}

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

body {
  font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background-color: var(--light);
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: var(--primary);
  transition: var(--transition);
}

ul {
  list-style: none;
}

/* Header Styles */
header {
  background-color: var(--light);
  padding: 1.2rem 0;
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
}

.logo span {
  color: var(--secondary);
}

nav ul {
  display: flex;
  gap: 2rem;
  align-items: center;
}

nav a {
  font-weight: 500;
  color: var(--text);
  position: relative;
}

nav a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient);
  transition: var(--transition);
}

nav a:hover {
  color: var(--primary);
}

nav a:hover::after {
  width: 100%;
}

.cta {
  background-color: var(--primary);
  color: var(--light);
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  font-weight: 600;
  box-shadow: var(--shadow);
}

.cta:hover {
  background-color: var(--secondary);
  color: var(--light);
  transform: translateY(-2px);
}

/* Hero Section */
#hero {
  padding: 5rem 0;
  background: radial-gradient(circle at center, rgba(46, 125, 50, 0.05) 0%, rgba(0, 150, 136, 0.1) 100%);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  min-height: 80vh;
}

.hero-content {
  width: 90%;
  max-width: 600px;
  margin: 0 auto;
  padding: 0 1rem;
  text-align: center;
}

.hero-content h2 {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  color: var(--text);
  line-height: 1.2;
}

.hero-content h2 span {
  color: var(--primary);
  position: relative;
  z-index: 1;
}

.hero-content h2 span::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 0.3em;
  bottom: 0;
  left: 0;
  z-index: -1;
  background-color: rgba(76, 175, 80, 0.3);
}

.hero-content p {
  font-size: 1.25rem;
  color: var(--text-light);
  margin-bottom: 2.5rem;
}

.hero-visual {
  width: 90%;
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  justify-content: center;
}

.btn-primary {
  display: inline-block;
  padding: 1rem 2.5rem;
  background: var(--gradient);
  color: var(--light);
  border-radius: 50px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  box-shadow: 0 6px 15px rgba(46, 125, 50, 0.25);
  transition: var(--transition);
}

.btn-primary:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(46, 125, 50, 0.35);
  color: var(--light);
}

/* Videos Section */
#videos {
  padding: 5rem 1rem;
  background-color: var(--light);
}

#videos h2 {
  text-align: center;
  margin-bottom: 3rem;
  font-size: 2.5rem;
  color: var(--primary);
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.video-card {
  background-color: var(--light);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.video-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 20px rgba(46, 125, 50, 0.2);
}

.video-thumbnail {
  width: 100%;
  height: 180px;
  overflow: hidden;
}

.video-thumbnail svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-info {
  padding: 1.5rem;
}

.video-info h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--primary);
}

.video-info p {
  color: var(--text-light);
  margin-bottom: 0;
}

/* About Section */
#about {
  padding: 5rem 1rem;
  background-color: var(--gray);
}

#about h2 {
  text-align: center;
  margin-bottom: 3rem;
  font-size: 2.5rem;
  color: var(--primary);
}

.about-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  gap: 3rem;
}

.about-content {
  flex: 1;
  min-width: 300px;
}

.about-content h3 {
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
  color: var(--secondary);
}

.about-content p {
  margin-bottom: 1.5rem;
  color: var(--text);
}

.features-list {
  padding-left: 1rem;
}

.features-list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.75rem;
}

.features-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5rem;
  width: 0.5rem;
  height: 0.5rem;
  background-color: var(--accent);
  border-radius: 50%;
}

.about-visual {
  flex: 1;
  min-width: 300px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.tech-illustration {
  width: 100%;
  max-width: 400px;
}

/* Access Section */
#access {
  padding: 5rem 1rem;
  text-align: center;
  background: var(--gradient);
  color: var(--light);
}

#access h2 {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  color: var(--light);
}

#access p {
  font-size: 1.25rem;
  max-width: 600px;
  margin: 0 auto 2.5rem;
  color: rgba(255, 255, 255, 0.9);
}

#access .btn-primary {
  background: var(--light);
  color: var(--primary);
}

#access .btn-primary:hover {
  background: rgba(255, 255, 255, 0.9);
  color: var(--primary);
}

/* Footer */
footer {
  background-color: #1B5E20;
  color: var(--light);
  padding: 4rem 1rem 1rem;
}

.footer-content {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto 2rem;
  gap: 2rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.footer-text h3 {
  color: var(--light);
  margin-bottom: 0.5rem;
}

.footer-text p {
  color: rgba(255, 255, 255, 0.7);
}

.footer-keywords {
  opacity: 0.7;
  font-size: 0.9rem;
  align-self: flex-end;
}

.copyright {
  text-align: center;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.copyright p {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.5);
}

/* Animations for SVG elements */
@keyframes pulse {
  0% {
    opacity: 0.7;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.05);
  }
  100% {
    opacity: 0.7;
    transform: scale(1);
  }
}

.circles-animation circle {
  transform-origin: center;
}

/* Responsive Design */
@media (max-width: 992px) {
  .hero-content h2 {
    font-size: 2.75rem;
  }
  
  #hero {
    padding: 4rem 0;
  }
}

@media (max-width: 768px) {
  .header-container {
    flex-direction: column;
    gap: 1rem;
  }
  
  nav ul {
    justify-content: center;
    gap: 1.5rem;
  }
  
  .hero-content {
    padding: 2rem 1rem;
  }
  
  .hero-content h2 {
    font-size: 2.25rem;
  }
  
  .hero-visual {
    order: -1;
    margin-bottom: 1rem;
  }
  
  .about-container {
    flex-direction: column;
  }
  
  .about-visual {
    order: -1;
  }
  
  .footer-content {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-content h2 {
    font-size: 2rem;
  }
  
  .video-grid {
    grid-template-columns: 1fr;
  }
  
  .btn-primary {
    padding: 0.75rem 1.5rem;
    font-size: 0.9rem;
  }
}