@import url('https://fonts.googleapis.com/css?family=Open+Sans');

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

body {
  font-family: 'Open Sans', sans-serif;
  color: #333; /* Dark text */
  padding-bottom: 50px;
  background-color: #f4f7f6; /* Light grey background */
}

.nav-content-wrapper {
  max-width: 1200px;
  margin: 0 auto;
}

.main-navbar {
  position: fixed;
  background-color: #2c3e50; /* Dark blue-grey */
  top: 0;
  left: 0;
  right: 0;
  transition: all 0.3s ease-in-out;
  z-index: 1000; /* Ensure it's on top */
}

.main-navbar .nav-content-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  transition: all 0.3s ease-in-out;
}

.main-navbar ul {
  display: flex;
  list-style-type: none;
  align-items: center;
  justify-content: center;
}

.main-navbar a {
  color: #ecf0f1; /* Light grey for links */
  text-decoration: none;
  padding: 7px 15px;
  transition: all 0.3s ease-in-out;
}

.main-navbar.scrolled {
  background-color: #ffffff; /* White background when scrolled */
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1); /* Subtle shadow */
}

.main-navbar.scrolled a {
  color: #333; /* Dark text when scrolled */
}

.main-navbar.scrolled .nav-content-wrapper {
  padding: 10px 0;
}

.main-navbar a.active-link,
.main-navbar a:hover {
  color: #2ecc71; /* Green for active/hover */
  font-weight: bold;
}

.site-logo a {
  font-size: 24px;
  font-weight: bold;
  color: #ecf0f1; /* Light grey for logo */
}

.main-navbar.scrolled .site-logo a {
  color: #333; /* Dark text for logo when scrolled */
}

.hero-section {
  background-image: url('https://picsum.photos/id/1042/1920/1080'); /* New hero image */
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
  height: 100vh;
  color: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  position: relative;
  margin-bottom: 20px;
  z-index: -2;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.4); /* Slightly less opaque overlay */
  z-index: -1;
}

.hero-section h1 {
  font-size: 48px; /* Larger font */
  margin: -20px 0 20px;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5); /* Text shadow for readability */
}

.hero-section p {
  font-size: 22px; /* Larger font */
  letter-spacing: 1px;
}

.content-area h2,
.content-area h3 {
  font-size: 180%; /* Larger font */
  margin: 25px 0; /* Increased margin */
  color: #2c3e50; /* Dark blue-grey */
}

.content-area p {
  color: #555; /* Slightly lighter text */
  line-height: 1.8; /* Increased line height */
  letter-spacing: 1.2px;
}

#scrollToTopBtn {
  display: none; /* Hidden by default */
  position: fixed; /* Fixed position */
  bottom: 30px; /* Place the button at the bottom */
  right: 30px; /* Place the button at the right */
  z-index: 99; /* Make sure it does not overlap */
  border: none; /* Remove borders */
  outline: none; /* Remove outline */
  background-color: #3498db; /* Blue background */
  color: white; /* White text */
  cursor: pointer; /* Add a mouse pointer on hover */
  padding: 15px; /* Some padding */
  border-radius: 10px; /* Rounded corners */
  font-size: 18px; /* Increase font size */
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
  transition: background-color 0.3s ease;
}

#scrollToTopBtn:hover {
  background-color: #2980b9; /* Darker blue on hover */
}