/* Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: Arial, sans-serif;
  color: #333;
  line-height: 1.6;
}

/* Container */
.container {
  width: 90%;
  max-width: 1100px;
  margin: auto;
}

/* Header */
.header {
  background: #166534; /* dark green */
  color: #fff;
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
}
.header h1 {
  display: inline-block;
}
.header nav {
  float: right;
}
.header nav a {
  color: #fff;
  margin-left: 20px;
  text-decoration: none;
  font-weight: bold;
}
.header nav a:hover {
  color: #facc15; /* yellow */
}

/* Hero */
.hero {
  background: url("https://images.unsplash.com/photo-1598514982407-d9a57fcd3db5") no-repeat center center/cover;
  height: 400px;
  display: flex;
  justify-content: center;
  align-items: center;
}
.hero .overlay {
  background: rgba(0, 0, 0, 0.6);
  padding: 40px;
  border-radius: 10px;
  color: #fff;
  text-align: center;
}
.hero h2 {
  font-size: 2.5rem;
  margin-bottom: 10px;
}

/* Sections */
.section {
  padding: 60px 0;
}
.section h3 {
  font-size: 2rem;
  color: #166534;
  margin-bottom: 20px;
}
.gray-bg {
  background: #f5f5f5;
}

/* Grid */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.card {
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  padding: 20px;
  text-align: center;
}
.card img {
  max-width: 100%;
  border-radius: 10px;
  margin-bottom: 15px;
}
.card h4 {
  margin-bottom: 10px;
  font-size: 1.2rem;
  color: #166534;
}

/* Contact */
.center {
  text-align: center;
}

/* Footer */
.footer {
  background: #166534;
  color: #fff;
  text-align: center;
  padding: 15px;
}