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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', Arial, sans-serif;
  background-color: #f7fafc;
  color: #222;
}

body.light-mode {
  background-color: #f4f4f4;
  color: #333;
}

body.dark-mode {
    background-color: #333;
    color: brown;
}

/* Header */
header {
  background: #008000;
  color: #fff;
  padding: 0;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.container {
  max-width: 1200px;
  margin: auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 64px;
}

.logo {
  font-size: 2rem;
  font-weight: bold;
  letter-spacing: 1px;
}

.logo a {
  color: #fff;
  text-decoration: none;
}

.search-box {
  padding: 8px 14px;
  border: none;
  border-radius: 4px;
  width: 220px;
  font-size: 1rem;
  background: #fff;
  color: #222;
  transition: box-shadow 0.2s;
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}

.search-box:focus {
  outline: none;
  box-shadow: 0 2px 8px #00800033;
}

/* Navigation */
nav {
  background: #006400;
  box-shadow: 0 2px 8px rgba(0,0,0,0.03);
}

.nav-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  list-style: none;
  padding: 0.5rem 0;
  gap: 10px;
}

.nav-links li {
  margin: 0 12px;
}

.nav-links a {
  color: #fff;
  text-decoration: none;
  font-weight: 500;
  padding: 8px 18px;
  border-radius: 20px;
  transition: background 0.2s, color 0.2s;
}

.nav-links a:hover,
.nav-links a:focus {
  background: #fff;
  color: #008000;
}

/* Hero Section */
.hero {
  background: linear-gradient(90deg, #e6ffe6 60%, #fff 100%);
  color: #000;
  text-align: center;
  padding: 64px 20px 48px 20px;
  box-shadow: 0 2px 12px rgba(0,128,0,0.04);
  transition: background-color 0.3s ease, color 0.3s ease;
}

body.light-mode .hero {
  background: linear-gradient(90deg, #e6ffe6 60%, #fff 100%);
  color: #000;
}

body.dark-mode .hero {
  background: #121212;
  color: #f5f5f5;
}

body.dark-mode .hero h1 {
  color: #90ee90;
}

body.dark-mode .hero p {
  color: #ccc;
}



.hero h1 {
  font-size: 2.5rem;
  color: #008000;
  margin-bottom: 16px;
  font-weight: 700;
  letter-spacing: 1px;
}

.hero p {
  font-size: 1.25rem;
  color: #333;
  margin-bottom: 32px;
}

.cta-btn {
  background: #008000;
  color: #fff;
  padding: 14px 36px;
  border-radius: 30px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1rem;
  box-shadow: 0 2px 8px #00800022;
  transition: background 0.2s, box-shadow 0.2s;
  display: inline-block;
}

.cta-btn:hover,
.cta-btn:focus {
  background: #006400;
  box-shadow: 0 4px 16px #00800033;
}

/* Content Section */
.content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 28px;
  max-width: 1200px;
  margin: 40px auto;
  padding: 0 20px;
}

.card {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(0,128,0,0.07);
  padding: 32px 24px 24px 24px;
  text-align: left;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.15s, box-shadow 0.15s;
  border-top: 4px solid #008000;
  position: relative;
  min-height: 220px;
}

.card h2 {
  margin-top: 0;
  color: #008000;
  font-size: 1.4rem;
  margin-bottom: 10px;
  font-weight: 700;
}

.card p {
  color: #444;
  font-size: 1.05rem;
  margin-bottom: 18px;
}

.card a {
  margin-top: auto;
  color: #006400;
  text-decoration: none;
  font-weight: bold;
  font-size: 1rem;
  transition: color 0.2s;
  display: inline-block;
}

.card a:hover,
.card a:focus {
  color: #008000;
  text-decoration: underline;
}

.card::after {
  content: '';
  display: block;
  width: 36px;
  height: 4px;
  background: #3cb371;
  border-radius: 2px;
  position: absolute;
  left: 24px;
  bottom: 18px;
  opacity: 0.15;
}

/* Footer */
footer {
  background: #222;
  color: #fff;
  text-align: center;
  padding: 24px 0 18px 0;
  margin-top: 48px;
  font-size: 1rem;
  letter-spacing: 0.5px;
}

/* Responsive Design */
@media (max-width: 900px) {
  .container {
    flex-direction: column;
    align-items: flex-start;
    height: auto;
    gap: 10px;
    padding: 12px 16px;
  }
  .search-box {
    width: 100%;
    margin-top: 10px;
  }
  .hero h1 {
    font-size: 2rem;
  }
  .content {
    gap: 18px;
  }
}

@media (max-width: 600px) {
  .container {
    padding: 10px 8px;
  }
  .logo {
    font-size: 1.3rem;
  }
  .nav-links {
    flex-direction: column;
    align-items: center;
    gap: 0;
  }
  .nav-links li {
    margin: 6px 0;
  }
  .hero {
    padding: 36px 8px 28px 8px;
  }
  .hero h1 {
    font-size: 1.3rem;
  }
  .hero p {
    font-size: 1rem;
  }
  .cta-btn {
    padding: 10px 22px;
    font-size: 1rem;
  }
  .content {
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 0 6px;
  }
  .card {
    padding: 18px 10px 16px 10px;
    min-height: 160px;
  }
  footer {
    padding: 18px 0;
  }
}