@import url('https://fonts.googleapis.com/css2?family=Red+Hat+Display:ital,wght@0,300..900;1,300..900&display=swap');

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* Fade-in class to be used on elements */
.fade-in {
  opacity: 0; /* Start invisible */
  animation: fadeIn 1s ease-in forwards; /* Apply fade-in animation */
}
body,
html {
  /* Ensure the body and html take full height */
  height: 100%;
  margin: 0;
  font-family: 'Red Hat Display';
  font-weight: 400;
  color: rgb(255, 255, 255);
}

body {
  /* Set a fallback background color */
  background-color: black;
}

.background {
  background-attachment: fixed;
  background-image: url('essay-gettyimages-1237093074.webp');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  position: fixed; /* Keep background fixed while scrolling */
  height: 100vh;
  width: 100%;
  filter: brightness(25%);
  top: 0;
  left: 0;
  z-index: -10;
}

.wrapper {
  display: flex;
  flex-direction: column;
  justify-content: flex-start; /* Align items to the top */
  align-items: center; /* Center items horizontally */
  height: 100vh;
  position: relative;
  padding-top: 20px;
  opacity: 0; /* Start invisible */
  animation: fadeIn 0.5s ease-in forwards; /* Apply fade-in animation */
}

.navbar {
  display: flex;
  gap: 50px;
  margin-top: 5px; /* Adjust as needed for spacing from the top */
}

.nav-button {
  padding: 12px 20px;
  border: 2px solid white;
  background-color: rgba(0, 0, 0, 0.5);
  color: white;
  font-size: 16px;
  cursor: pointer;
  transition: background-color 0.3s, color 0.3s;
  font-family: 'Red Hat Display';
  font-weight: 600;
  font-size: 20px;
  width: 180px;
  border-radius: 800px;
}

.nav-button:hover {
  background-color: white;
  color: black;
}

.hero-text {
  color: white;
  font-size: 50px;
  font-weight: 700;
  text-align: center;
  padding: 0; /* Remove padding to minimize hover area */
  display: inline-block; /* Restrict hover area to text content */
  transition: text-shadow 0.3s ease-in-out, transform 0.3s ease-in-out; /* Smooth transition */
}

.hero-text:hover {
  text-shadow: 2px 2px 5px rgba(255, 255, 255, 0.7); /* White shadow */
  transform: translateY(-5px); /* Raised effect */
}

@keyframes fadeInOut {
  0% {
    opacity: 0.5;
  }
  50% {
    opacity: 1;
  }
  100% {
    opacity: 0.5;
  }
}

.card-wrapper {
  display: flex;
  flex-direction: column; /* Stack cards vertically */
  align-items: center; /* Center cards horizontally */
  margin-top: 50px; /* Adjusts space from the top */
}

.row {
  display: flex;
  gap: 650px; /* Space between the cards */
  justify-content: center; /* Center the row */
}

.black_hole {
  margin-left: -100px; /* Move the Black Holes card to the left */
  width: 500px;
}

.black_hole a {
  margin-left: 110px;
}

.cards {
  font-size: 25px;
  color: white;
  margin-left: 20px; /* Adds space to the left */
  box-sizing: border-box;
  position: relative;
  top: -450px; /* Moves the element upwards */
  margin-left: -20px;
  text-align: center;
}

.cards a {
  color: white;
  text-decoration: none;
  border: white 2px solid;
  display: inline-block;
  text-align: center;
  box-sizing: border-box;
  padding: 6px 20px;
  line-height: normal;
  transition: text-shadow 0.3s ease-in-out, transform 0.3s ease-in-out,
    background-color 0.3s ease-in-out, color 0.3s ease-in-out;
  border-radius: 600px;
}

.cards a:hover {
  text-shadow: 2px 2px 5px rgba(255, 255, 255, 0.7);
  transform: translateY(-5px);
  background-color: rgb(223, 223, 223);
  color: black;
}

.cards a h3 {
  margin: 0;
  padding: 0;
}

.cards p {
  margin-top: 15px;
  width: 600px; /* Adjust width to fit within card */
}

.cards p:hover {
  text-shadow: 2px 2px 5px rgba(255, 255, 255, 0.6);
  transform: translateY(-5px);
  transition: text-shadow 0.3s ease-in-out, transform 0.3s ease-in-out;
}

.nebula-card {
  margin-top: 100px;
}

.nebula-card a {
  justify-content: center;
  align-items: center;
  margin-left: 40px;
}

.nebula-card p {
  text-align: left;
  text-wrap: pretty;
  text-align: left; /* Align text to the left */
  width: 100%; /* Ensure the card takes the full width */
  margin-left: 100px;
  margin-right: 200px;
  max-width: 1750px;
  text-align: center; /* Align text to the center */
}

.videos {
  margin-top: -190px; /* Adjust the space below the Nebula card */
  text-align: center;
  width: 100%; /* Ensure it takes the full width */
  text-decoration: underline;
}

.videos h2 {
  position: relative; /* Ensure the text is positioned in normal flow */
  z-index: 1; /* Make sure it's above other content */
  pointer-events: auto; /* Allow text selection */
  overflow: visible; /* Ensure text is not clipped */
}

.video-links {
  display: grid;
  grid-template-columns: repeat(3, 400px); /* 3 columns, each 400px wide */
  grid-template-rows: repeat(2, 400px); /* 3 rows, each 400px tall */
  gap: 100px; /* Space between grid items */
  justify-content: center; /* Center the grid horizontally within the container */
  align-items: center; /* Center the grid items vertically */
  margin-top: -120px; /* Space above the grid (adjust this to decrease the gap) */
  margin-left: 160px;
}

.button-container {
  display: contents; /* Ensure buttons are placed directly in the grid */
}

.button-container a {
  display: block; /* Ensure buttons occupy full width of their grid cell */
  width: 200px; /* Full width of the grid cell */
  text-align: center;
  color: white;
  font-size: 20px;
  text-decoration: none; /* Remove underline */
  border: 2px solid white;
  padding: 8px 12px;
  border-radius: 600px;
  height: 30px;
  transition: background-color 0.3s, color 0.3s;
  margin-bottom: 10px; /* Decrease the space between the buttons and the text below */
}

.button-container a:hover {
  background-color: white;
  color: black;
  text-decoration: underline;
  font-weight: 500;
}

.images {
  display: contents; /* Ensure images are placed directly in the grid */
}

.black-hole-image,
.supernova-image,
.nebula-image {
  width: 100%; /* Full width of the grid cell */
  border: 2px solid white;
  border-radius: 20px;
  margin-top: -630px; /* Decrease the space between the images and the buttons above */
  margin-left: -100px;
}

.nebula-image {
  height: 270px;
  width: auto;
  border: 2px solid white;
  border-radius: 20px;
  margin-top: -630px; /* Decrease the space between the images and the buttons above */
  margin-left: -100px;
}

.bottom-navbar {
  margin-top: -100px;
  gap: 130px;
  height: 50px;
  padding-bottom: 150px;
}

.nav-bottom {
  padding: 12px 20px 50px;
  border: 2px solid white;
  background-color: rgba(0, 0, 0, 0.5);
  color: white;
  font-size: 16px;
  cursor: pointer;
  transition: background-color 0.3s, color 0.3s;
  font-family: 'Red Hat Display';
  font-weight: 600;
  font-size: 28px;
  width: 220px;
  height: 60px;
  border-radius: 800px;
}

.nav-bottom:hover {
  background-color: white;
  color: black;
  font-weight: 700;
}

.bottom-text {
  text-wrap: nowrap;
  margin-top: -500px;
  font-size: 35px;
  text-align: center;
  margin-left: 120px;
}

.quiz-link {
  text-decoration: none;
  display: inline-block;
}

.quiz-button {
  color: white;
  background-color: transparent;
  border: 3px solid white;
  padding: 12px 20px;
  font-size: 25px;
  font-family: 'Red Hat Display', sans-serif;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.3s, color 0.3s;
  border-radius: 100px;
  margin-bottom: 200px;
}

.quiz-button:hover {
  background-color: white;
  color: black;
  font-weight: 800;
}

/* Black Hole page 👇👇👇👇 */

.black-hole-text {
  display: flex;
  text-align: center;
  color: white;
  font-size: 50px;
  font-weight: 700;
  padding: 0; /* Remove padding to minimize hover area */
  display: inline-block; /* Restrict hover area to text content */
  transition: text-shadow 0.3s ease-in-out, transform 0.3s ease-in-out; /* Smooth transition */
}

.black-hole-text:hover {
  text-shadow: 2px 2px 5px rgba(255, 255, 255, 0.7); /* White shadow */
  transform: translateY(-5px); /* Raised effect */
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}