a {
  text-decoration: none;
}

#main-header {
  position: fixed;
  z-index: 1000;
  transition: all 0.7s ease-in-out;
}

#main-nav {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
  transition: all 1s;
}

#main-header.initial-state {
  top: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
}

#main-header.scrolled-state {
  top: 1.5rem;
  left: 100%;
  transform: translateX(calc(-100% - 5rem));
}

#main-nav.scrolled-state {
  background-color: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 100px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2),
    inset 0 1px 1px rgba(255, 255, 255, 0.1);
}

body.dark-mode #main-nav.scrolled-state {
  background-color: rgba(255, 255, 255, 0.15);
}

#main-nav a,
#main-nav button {
  color: var(--text-color);
  text-decoration: none;
  background: none;
  border: none;
  cursor: pointer;
  transition: opacity 0.3s ease;
  font-family: "Figtree", sans-serif;
}

#main-nav a:hover,
#main-nav button:hover {
  opacity: 0.5;
}

#main-nav button {
  font-size: 20px;
  padding-top: 5px;
}

.theme-toggle-button .ph-sun {
  display: none;
}

.theme-toggle-button .ph-moon {
  display: inline-block;
}

#hamburger-btn {
  display: none;
  width: 28px;
  height: 28px;
  margin-bottom: 4px;
  align-items: center;
  justify-content: center;
}

#hamburger-btn i {
  font-size: 25px;
  color: var(--text-color);
  transition: transform 0.3s ease, opacity 0.3s ease;
  position: absolute;
}

#hamburger-btn .icon.ph-x {
  opacity: 0;
  transform: rotate(-90deg);
}

#hamburger-btn.is-open .icon.ph-list {
  opacity: 0;
  transform: rotate(90deg);
}

#hamburger-btn.is-open .icon.ph-x {
  opacity: 1;
  transform: rotate(0deg);
}

.desktop {
  display: inline-block;
}

#mobile-nav-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 999;
  background-color: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-100%);
  transition: all 0.5s cubic-bezier(0.77, 0, 0.175, 1);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

body.mobile-menu-open {
  overflow: hidden;
}

body.mobile-menu-open #mobile-nav-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

#mobile-nav-menu nav {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  text-align: center;
}

#mobile-nav-menu a,
#mobile-nav-menu button {
  color: var(--text-color);
  text-decoration: none;
  font-size: 2rem;
  font-weight: 700;
  background: none;
  border: none;
  cursor: pointer;
  transition: opacity 0.3s ease;
  transition: color 0.3s ease;
  font-family: "Figtree", sans-serif;
}

#mobile-nav-menu a:hover,
#mobile-nav-menu button:hover {
  opacity: 0.7;
}

#mobile-nav-menu .theme-toggle-button {
  font-size: 2rem;
}

.theme-toggle-button .ph-sun {
  display: none;
}

.theme-toggle-button .ph-moon {
  display: inline-block;
}

body.dark-mode .theme-toggle-button .ph-sun {
  display: inline-block;
}

body.dark-mode .theme-toggle-button .ph-moon {
  display: none;
}

.mobile-nav-item {
  display: none;
}

body.dark-mode .theme-toggle-button .ph-sun {
  display: inline-block;
}

body.dark-mode .theme-toggle-button .ph-moon {
  display: none;
}

/* Media Queries */
/* Media Queries for Width */

/* Mid-sized screens */
@media (max-width: 1024px) {
  #main-nav {
    gap: 1.5rem;
  }

  #main-header.scrolled-state {
    top: 1rem;
    left: 50%;
    transform: translateX(-50%);
  }

  /* Small screens */
  @media (max-width: 768px) {
    #main-header.initial-state {
      top: 1rem;
      left: 100%;
      transform: translateX(calc(-100% - 2rem));
    }

    #main-header.scrolled-state {
      top: 1rem;
      left: 100%;
      transform: translateX(calc(-100% - 2rem));
    }

    .desktop {
      display: none;
    }

    #hamburger-btn {
      display: flex;
    }
  }
}