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

body {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #18312f;
  background: #f7fbfa;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 8%;
  background: #ffffff;
  border-bottom: 1px solid #e0eeee;
  position: sticky;
  top: 0;
  z-index: 10;
}

.logo {
  font-weight: bold;
  color: #0f766e;
}

nav a {
  margin-left: 20px;
  color: #18312f;
  text-decoration: none;
  font-size: 15px;
}

nav a:hover {
  color: #0f766e;
}

.hero {
	min-height: 100vh;
	display: flex;
	align-items: center;
	padding: 80px 8%;
	background:
	 linear-gradient(rgba(9, 73, 68, 0.70), rgba(9, 73, 68, 0.70)),
	 url("images/water.jpeg");
	background-size: cover;
	background-position: center;
	color: white;
 }

.hero-content {
  max-width: 750px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 14px;
  margin-bottom: 15px;
  color: #b7f7ed;
}

h1 {
  font-size: 56px;
  line-height: 1.1;
  margin-bottom: 20px;
}

.subtitle {
  font-size: 21px;
  max-width: 680px;
  margin-bottom: 30px;
}

.hero-buttons {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 13px 22px;
  border-radius: 6px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  font-weight: bold;
}

.primary {
  background: #0f766e;
  color: white;
}

.secondary {
  background: white;
  color: #0f766e;
}

.section {
  padding: 75px 8%;
}

.section h2 {
  font-size: 34px;
  margin-bottom: 20px;
  color: #0f4f4a;
}

.section p {
  max-width: 900px;
  font-size: 18px;
}

.highlight {
  background: #e8f7f5;
}

.dark {
  background: #0f4f4a;
  color: white;
}

.dark h2 {
  color: white;
}

.grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-top: 30px;
}

.card {
  background: white;
  padding: 25px;
  border-radius: 10px;
  border: 1px solid #dcebea;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.04);
}

.card h3 {
  color: #0f766e;
  margin-bottom: 10px;
}

.card p {
  font-size: 16px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 15px;
  margin: 30px 0;
}

.steps div {
  background: rgba(255, 255, 255, 0.14);
  padding: 18px;
  border-radius: 8px;
  text-align: center;
  font-weight: bold;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 30px;
}

.stats div {
  background: #ffffff;
  border: 1px solid #dcebea;
  padding: 25px;
  border-radius: 10px;
  text-align: center;
}

.stats strong {
  display: block;
  font-size: 36px;
  color: #0f766e;
}

.stats span {
  font-size: 15px;
}

.contact {
  background: #e8f7f5;
}

form {
  max-width: 650px;
  margin-top: 30px;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

input,
textarea {
  width: 100%;
  padding: 14px;
  border: 1px solid #c9dddd;
  border-radius: 6px;
  font-size: 16px;
}

textarea {
  min-height: 140px;
}

#formMessage {
  margin-top: 15px;
  color: #0f766e;
  font-weight: bold;
}

footer {
  padding: 35px 8%;
  background: #082f2c;
  color: white;
  text-align: center;
}

footer .small {
  font-size: 13px;
  opacity: 0.8;
  margin-top: 8px;
}

@media (max-width: 900px) {
  .navbar {
    flex-direction: column;
    gap: 12px;
  }

  nav a {
    margin: 0 8px;
  }

  h1 {
    font-size: 38px;
  }

  .grid,
  .steps,
  .stats {
    grid-template-columns: 1fr;
  }
  .hidden {
  display: none;
}

select {
  width: 100%;
  padding: 14px;
  border: 1px solid #c9dddd;
  border-radius: 6px;
  font-size: 16px;
  background: white;
}
	
}