:root {
  --primary-red: #ed0a0a; 
  --secondary-gray: rgba(207, 207, 207);
  --background-color: rgba(207, 207, 207);
  --header-background-color: rgba(207, 207, 207, 0.8);
  --black-text-color: black;
  --white-text-color: white;
  --button-text-color: #ed0a0a;
  --button-border-color: rgba(207, 207, 207);
  --button-background-color: rgba(207, 207, 207);
  --header-height: 80px;
  --header-nav-padding: 0 30px;
  --section-margin: 0 150px;
  --section-height: 100vh;
  --icon-size: 30px;
  --font-large: 5em;
  --font-medium: 3em;
  --font-small: large;
  --border-radius: 8px;
  --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}
body {
  margin: 0;
  padding: 0;
  font-family: "Poppins", "Montserrat", "Roboto", "Lato", "Open Sans",
    "Playfair Display", "Nunito", "Quicksand", "Inconsolata", "Georgia",
    sans-serif;
}

.header {
  position: fixed;
  top: 0;
  height: 80px;
  width: 100%;
  z-index: 100;
  background-color: var(--header-background-color);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
section {
  width: 1005;
  height: 100vh;
  margin: 0 150px;
}
.header-nav {
  height: inherit;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 30px;
}
.header-nav ul {
  display: flex;
  justify-content: space-evenly;
  align-items: center;
  list-style-type: none;
  width: 300px;
  margin: 0;
  padding: 0;
}
.mut-icon {
  width: 120px;
  height: 120px;
}
@keyframes slideIn {
  0% {
    transform: translateY(-100%);
    opacity: 0;
  }
  100% {
    transform: translateY(0);
    opacity: 1;
  }
}
.header-nav ul li {
  opacity: 0;
  animation: slideIn 0.6s ease forwards;
}
.header-nav ul li:nth-child(1) {
  animation-delay: 0.2s;
}
.header-nav ul li:nth-child(2) {
  animation-delay: 0.4s;
}
.header-nav ul li:nth-child(3) {
  animation-delay: 0.6s;
}
.header-nav ul li:nth-child(4) {
  animation-delay: 0.8s;
}
.social-icon {
  font-size: 30px;
  color: var(--black-text-color);
}
.social-icon:hover {
  transform: rotateY(360deg);
}
.social-icon {
  font-size: 30px;
  transition: transform 0.9s ease, color 0.9s ease;
}
.social-icon[class*="fa-linkedin "]:hover {
  color: #0077b5;
}

.social-icon[class*="fa-facebook "]:hover {
  color: #1877f2;
}
.social-icon[class*="fa-github "]:hover {
  color: #181717;
}
.social-icon[class*="fa-instagram "]:hover {
  color: #dd2a7b;
}

.home,
.about,
.projects,
.education,
.contact {
  opacity: 0;
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.active-section {
  opacity: 1;
  transform: translateX(0);
}
a {
  text-decoration: none;
}
@media (max-width: 1200px) {
  section {
    margin: 0 80px 0 150px;
  }
}
@media (max-width: 925px) {
  section {
    width: 100vw;
    height: 100vh;
    margin: 0;
  }
  .header-nav {
    flex-direction: column;
  }
  .header-nav ul {
    display: none;
  }
  .header {
    height: 90px;
  }
  .header img {
    width: 90px;
    height: 90px;
  }
  section .title {
    font-size: 3em;
    font-weight: bolder;
  }
}
@keyframes slideInLefttoRight {
  from {
    transform: translateX(-100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}