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

html, body {
  height: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  color: #1a1a1a;
  background-color: #f9fafb;
  overflow-x: hidden;
}
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 8%;
  background: linear-gradient(135deg, #00bfa5, #00796b);
  color: white;
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.logo {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.nav-links {
  display: flex;
  list-style: none;
}

.nav-links li {
  margin-left: 30px;
}

.nav-links a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  transition: 0.3s;
}

.nav-links a:hover {
  color: #c8fff4;
}
.menu-toggle {
  display: none;
  font-size: 1.8rem;
  cursor: pointer;
}

@media (max-width: 768px) {
  .nav-links {
    position: absolute;
    right: 0;
    top: 70px;
    width: 100%;
    flex-direction: column;
    align-items: center;
    background: linear-gradient(135deg, #00bfa5, #00796b);
    display: none;
  }
  .nav-links.active {
    display: flex;
  }
  .nav-links li {
    margin: 20px 0;
  }
  .menu-toggle {
    display: block;
  }
}
.hero {
  position: relative;
  background: url('Images/aboutus.jpg') no-repeat center center / cover;
  color: white;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 10%;
  background-attachment: fixed;
  background-position: center center;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.45);
  z-index: 1;
}

.hero-content {
  max-width: 700px;
  position: relative;
  z-index: 2; /* ensures text appears above overlay */
}

.hero h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 30px;
  line-height: 1.6;
}

.btn {
  background-color: white;
  color: #00796b;
  padding: 12px 30px;
  border-radius: 30px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  box-shadow: 0 4px 10px rgba(0,0,0,0.15);
}

.btn:hover {
  background-color: #e0f7fa;
  transform: translateY(-3px);
}
.about {
  text-align: center;
  padding: 100px 10%;
  background-color: #ffffff;
  z-index: 1;
  position: relative;
}

.about h2 {
  font-size: 2rem;
  color: #00796b;
  margin-bottom: 20px;
}

.about p {
  max-width: 800px;
  margin: 0 auto;
  font-size: 1.1rem;
  color: #555;
  line-height: 1.7;
}
.features {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 25px;
  padding: 80px 8%;
  background: linear-gradient(135deg, #e0f2f1, #f1f8e9);
  z-index: 1;
  position: relative;
}

.feature-card {
  background: white;
  padding: 40px 25px;
  border-radius: 16px;
  text-align: center;
  width: 300px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.feature-card h3 {
  color: #00796b;
  font-size: 1.3rem;
  margin-bottom: 15px;
}

.feature-card p {
  color: #555;
  font-size: 1rem;
  line-height: 1.5;
}
footer {
  background: #004d40;
  color: white;
  text-align: center;
  padding: 20px 0;
  font-size: 0.95rem;
  letter-spacing: 0.3px;
  position: relative;
  z-index: 2;
}
.fade-in-up {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s ease-out;
}

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