:root {
  --color-primary: #5299D3;
  --color-secondary: #A2BCE0;
  --color-text: #5E5C6C;
  --color-light: #F5F5F5;
  --color-dark: #121212;
}

* {
  margin: 0;
  padding: 0;
}

html {
  height: 100%;
  overflow-x: hidden;
  scroll-behavior: smooth;
}

/* Dark mode */
body.dark-mode {
  background-color: var(--color-dark);
  color: var(--color-light);
}

.dark-mode .sun-icon {
  opacity: 0;
  pointer-events: none;
}

.dark-mode .moon-icon {
  opacity: 1;
  pointer-events: auto;
}

body.dark-mode .menu-icon {
  color: var(--color-light);
}

body.dark-mode .menu-icon:hover {
  color: var(--color-secondary);
}

body.dark-mode #menu {
  background-color: var(--color-text);
}

body.dark-mode .navigation-list li a:hover {
  color: var(--color-secondary) ;
}

body.dark-mode .github-icon {
  filter: invert(1);
}

body.dark-mode .section-subtitle {
  color: var(--color-light);
}

/* Light mode (default) */
body {
  color: var(--color-text);
  display: flex;
  flex-direction: column;
  font-family: Karla, sans-serif;
}

.icon {
  height: 32px;
  width: 32px;
}

.menu-icon {
  color: var(--color-primary)
}

header {
  display: flex;
  flex-direction: column;
  height: 100vh;
  justify-content: center;
  padding: 20px;
}

#nav-wrapper {
  display: flex;
  justify-content: flex-end;
  position: fixed;
  right: 20px;
  top: 20px;
  z-index: 2;
}

.theme-toggle,
.menu-toggle {
  background: none;
  border: none;
  cursor: pointer;
  margin-left: 30px;
  z-index: 3;
}

.theme-toggle {
  display: inline-block;
  height: 38px;
  overflow: hidden;
  position: relative;
  width: 38px;
}

.toggle-icon {
  height: 100%;
  inset: 0;
  position: absolute;
  width: 100%;
}

.sun-icon {
  fill: var(--color-dark);
  opacity: 1;
  pointer-events: auto;
}

.moon-icon {
  fill: none;
  opacity: 0;
  pointer-events: none;
  stroke: #f5f5f5;
}

.menu-active {
  z-index: 3;
}

.bar {
  stroke-width: 3px;
  stroke-linecap: round;
  transform-box: fill-box;
  transform-origin: center;
  transition: all 0.3s ease;
}

#menu {
  display: none;
  font-size: 30px;
}

#menu.menu-open {
  align-items: center;
  background-color: var(--color-secondary);
  display: flex;
  justify-content: center;
  height: 100vh;
  position: fixed;
  left: 0;
  right: 0;
  top: 0;
  z-index: 2;
}

.menu-toggle.menu-active .menu-icon:hover {
  color: var(--color-dark);
}

.menu-toggle.menu-active .top-bar {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.menu-active .middle-bar {
  opacity: 0;
  transform: translateX(100%);
  transition: all 0.4s ease;
}

.menu-toggle.menu-active .bottom-bar {
  transform: translateY(-7px) rotate(-45deg);
}

.menu-icon:hover {
  color: var(--color-secondary);
}

.menu-toggle.menu-active .menu-icon {
  color: var(--color-light);
}

.navigation-list {
  display: flex;
  flex-direction: column;
  gap: 25px;
  list-style-type: none;
}

.navigation-list li a {
  color: var(--color-light);
  font-weight: bold;
  text-decoration: none;
  transition: all 0.3s ease;
}

.navigation-list li a:hover {
  color: var(--color-primary);
}

#header-intro {
  align-items: center;
  display: flex;
  flex-direction: column;
  gap: 30px;
  text-align: center;
}

#header-intro h1 {
  color: var(--color-primary);
  font-size: 70px;
}

#header-intro p {
  font-size: 20px;
}

.socials {
  display: flex;
  gap: 35px;
}

.social-icon {
  height: 40px;
  opacity: 0.5;
  transition: all 0.2s ease;
  width: 40px;
}

.social-icon:hover {
  opacity: 1;
}

.angle-down-container {
  display: flex;
  justify-content: center;
  left: 0;
  margin: 90vh 0 100px 0;
  position: absolute;
  right: 0;
}

@keyframes bob {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(5px);
  }
}

.fa-angle-down {
  animation: bob 1s infinite;
  color: var(--color-primary);
  cursor: pointer;
  font-size: 30px;
  transition: all 0.2s ease;
}

.fa-angle-down:hover {
  color: var(--color-secondary);
}

main {
  flex: 1;
  height: 100vh;
  padding: 20px;
}

section {
  margin-bottom: 100px;
}

.section-title {
  color: var(--color-primary);
  font-size: 30px;
  padding: 25px 0;
  text-align: center;
}

.tools-container {
  align-items: center;
  display: grid;
  font-weight: bold;
  gap: 25px;
  grid-template-columns: 1fr 1fr;
  justify-items: center;
  text-align: center;
}

.tool-icon {
  height: 48px;
  width: 48px;
}

.tool {
  padding: 5px;
}

.section-subtitle {
  color:var(--color-text);
  font-size: 20px;
  grid-column: 1 / -1;
  padding: 10px 0;
}

#fullstack-projects,
#frontend-projects {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.project {
  position: relative;
  margin-bottom: 40px;
}

.thumbnail-container {
  height: 100%;
  width: 100%;
}

.project-thumbnail {
  height: 100%;
  width: 100%;
}

.project-details-container {
  background-color: rgba(0, 0, 0, 0.8);
  color: var(--color-light);
  display: none;
  height: 100%;
  left: 0;
  overflow: auto;
  position: absolute;
  right: 0;
  top: 0;
}

.project-details {
  display: flex;
  flex-direction: column;
  gap: 10px;
  height: 100%;
  justify-content: space-evenly;
  padding: 10px;
  width: 100%;
}

.project:hover .project-details-container {
  display: flex;
}

.project-tools {
  color: var(--color-text);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style-type: none;
  padding: 5px 0;
}

.project-tools li {
  background-color: var(--color-light);
  color: var(--color-dark);
  border-radius: 5px;
  padding: 3px;
}

.project-links {
  display: flex;
  gap: 20px;
  margin: 10px 0;
}

.project-links a {
  background-color: var(--color-primary);
  border-radius: 5px;
  color: var(--color-light);
  padding: 8px 10px;
  text-decoration: none;
  transition: all 0.1s ease;
}

.project-links a:hover {
  background-color: var(--color-secondary);
}

footer {
  background-color: var(--color-primary);
  color: var(--color-dark);
  font-size: 18px;
  font-weight: bold;
  padding: 20px;
  text-align: center;
}

@media (min-width: 768px) {
  .social-icon {
    height: 58px;
    width: 58px;
  }

  .tools-container {
    grid-template-columns: repeat(4, 1fr);
  }

  .tool-icon {
    height: 64px;
    width: 64px;
  }

  .project-tools li {
    padding: 10px;
  }

  .section-title {
    font-size: 35px;
  }

  .section-subtitle {
    font-size: 25px;
  }
}

@media (min-width: 992px) {
  #header-intro h1 {
    font-size: 100px;
  }

  #header-intro p {
    font-size: 35px;
  }

  .tools-container {
    gap: 5px;
    grid-template-columns: repeat(6, 1fr);
    justify-self: center;
    width: 60%;
  }

  .tool-icon {
    height: 80px;
    width: 80px;
  }

  #fullstack-projects,
  #frontend-projects {
    grid-template-columns: repeat(3, 1fr);
    justify-self: center;
    width: 100%;
  }

  .section-title {
    font-size: 40px;
  }

  .section-subtitle {
    font-size: 30px;
  }
}

@media (min-width: 1400px) {
  .tools-container {
    width: 50%;
  }

  #fullstack-projects,
  #frontend-projects {
    justify-self: center;
    width: 90%;
  }
}