:root {
  --default-font: "Roboto",  system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
  --heading-font: "Raleway",  sans-serif;
  --nav-font: "Poppins",  sans-serif;
}

:root { 
  --background-color: #ffffff;
  --default-color: #272829;
  --heading-color: #050d18;
  --accent-color: #149ddd;
  --surface-color: #ffffff;
  --contrast-color: #ffffff;
}

:root {
  --nav-color: #a8a9b4; 
  --nav-hover-color: #ffffff;
  --nav-mobile-background-color: #040b14;
  --nav-dropdown-background-color: #040b14;
  --nav-dropdown-color: #a8a9b4;
  --nav-dropdown-hover-color: #ffffff;
}

.dark-background {
  --background-color: #040b14;
  --default-color: #ffffff;
  --heading-color: #ffffff;
  --surface-color: #151f2b;
  --contrast-color: #ffffff;
}

.header {
  color: var(--default-color);
  background-color: var(--background-color);
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  padding: 0 15px;
  width: 300px;
  transition: all ease-in-out 0.3s;
  overflow-y: auto;
  z-index: 997;
  border-right: 1px solid color-mix(in srgb, var(--default-color), transparent 90%);
}

.header .profile-img img {
  margin: 15px auto;
  display: block;
  width: 120px;
  border: 8px solid color-mix(in srgb, var(--default-color), transparent 85%);
}

.header .logo {
  line-height: 1;
  margin-bottom: 15px;
}

.header .logo img {
  max-height: 32px;
  margin-right: 8px;
}

.header .logo h1 {
  font-size: 24px;
  margin: 0;
  font-weight: 700;
  color: var(--heading-color);
}

.header .social-links {
  margin: 0 0 20px 0;
}

.header .social-links a {
  font-size: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in srgb, var(--default-color), transparent 90%);
  color: var(--default-color);
  margin: 0 2px;
  border-radius: 50%;
  text-align: center;
  width: 40px;
  height: 40px;
  transition: 0.3s;
}

.header .social-links a:hover {
  color: var(--contrast-color);
  background: var(--accent-color);
}

@media (min-width: 1200px) {
  .header~main{
    margin-left: 300px;
  }
}

@media (max-width: 1199px) {
  .header {
    left: -100%;
  }
}

.header.header-show {
  left: 0;
}

.header .header-toggle {
  color: var(--contrast-color);
  background-color: var(--accent-color);
  font-size: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  position: fixed;
  top: 15px;
  right: 15px;
  z-index: 9999;
  transition: background-color 0.3s;
}

.header .header-toggle:hover {
  color: var(--contrast-color);
  background-color: color-mix(in srgb, var(--accent-color) 90%, white 15%);
}

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

.navmenu {
  padding: 0;
  z-index: 9997;
}

.navmenu ul {
  list-style: none;
  padding: 0 0 20px 0;
  margin: 0;
}

.navmenu a,
.navmenu a:focus {
  color: var(--nav-color);
  padding: 15px 10px;
  font-family: var(--nav-font);
  font-size: 16px;
  font-weight: 400;
  display: flex;
  align-items: center;
  white-space: nowrap;
  transition: 0.3s;
  width: 100%;
}

.navmenu a .navicon,
.navmenu a:focus .navicon {
  font-size: 20px;
  margin-right: 10px;
}

.navmenu a .toggle-dropdown,
.navmenu a:focus .toggle-dropdown {
  font-size: 12px;
  line-height: 0;
  margin-left: auto;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: 0.3s;
  flex-shrink: 0;
  background-color: color-mix(in srgb, var(--accent-color), transparent 90%);
}

.navmenu a .toggle-dropdown:hover,
.navmenu a:focus .toggle-dropdown:hover {
  background-color: var(--accent-color);
  color: var(--contrast-color);
}

.navmenu a:hover,
.navmenu .active,
.navmenu .active:focus {
  color: var(--nav-hover-color);
}

.navmenu a:hover .navicon,
.navmenu .active .navicon,
.navmenu .active:focus .navicon {
  color: var(--accent-color);
}

.navmenu .active .toggle-dropdown,
.navmenu .active:focus .toggle-dropdown {
  background-color: var(--accent-color);
  color: var(--contrast-color);
  transform: rotate(180deg);
}

.navmenu .dropdown {
  display: block;
}

.navmenu .dropdown a,
.navmenu .dropdown a:focus {
  color: --nav-dropdown-color;
}

.navmenu .dropdown a:hover,
.navmenu .dropdown .active,
.navmenu .dropdown .active:focus {
  color: var(--nav-dropdown-hover-color);
}

.navmenu .dropdown ul {
  position: static;
  display: none;
  z-index: 99;
  padding: 5px 10px;
  margin: 5px 10px;
  background-color: var(--nav-dropdown-background-color);
  border: 1px solid color-mix(in srgb, var(--default-color), transparent 90%);
  box-shadow: none;
  transition: all 0.5s ease-in-out;
}

.navmenu .dropdown ul ul {
  background-color: rgba(33, 37, 41, 0.1);
}

.navmenu .dropdown>.dropdown-active {
  display: block;
  background-color: rgba(33, 37, 41, 0.03);
}