@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:ital,wght@0,100..700;1,100..700&display=swap');
:root {
  --main-background-color: #141414;
  --background-color: #1a1a1a;
  --accent-color: #ff8533;
  --primary-color: #7a1f1f;
  --text-color-light: #ffe4e1;
  --text-color-dark: #1a1a1a;
  --hover-color-light: #ffe4e1;
  --hover-color-dark: #2e2e2e;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-snap-type: y mandatory;
}

header,
nav,
label,
input {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  font-size: 1.2rem;
  font-weight: 500;
  cursor: pointer;
}

body {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 1.1rem;
  background-color: var(--main-background-color);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100%25'%3E%3Cdefs%3E%3ClinearGradient id='a' gradientUnits='userSpaceOnUse' x1='0' x2='0' y1='0' y2='100%25' gradientTransform='rotate(137,960,459)'%3E%3Cstop offset='0' stop-color='%23141414'/%3E%3Cstop offset='1' stop-color='%231A1A1A'/%3E%3C/linearGradient%3E%3Cpattern patternUnits='userSpaceOnUse' id='b' width='300' height='250' x='0' y='0' viewBox='0 0 1080 900'%3E%3Cg fill-opacity='0.01'%3E%3Cpolygon fill='%23444' points='90 150 0 300 180 300'/%3E%3Cpolygon points='90 150 180 0 0 0'/%3E%3Cpolygon fill='%23AAA' points='270 150 360 0 180 0'/%3E%3Cpolygon fill='%23DDD' points='450 150 360 300 540 300'/%3E%3Cpolygon fill='%23999' points='450 150 540 0 360 0'/%3E%3Cpolygon points='630 150 540 300 720 300'/%3E%3Cpolygon fill='%23DDD' points='630 150 720 0 540 0'/%3E%3Cpolygon fill='%23444' points='810 150 720 300 900 300'/%3E%3Cpolygon fill='%23FFF' points='810 150 900 0 720 0'/%3E%3Cpolygon fill='%23DDD' points='990 150 900 300 1080 300'/%3E%3Cpolygon fill='%23444' points='990 150 1080 0 900 0'/%3E%3Cpolygon fill='%23DDD' points='90 450 0 600 180 600'/%3E%3Cpolygon points='90 450 180 300 0 300'/%3E%3Cpolygon fill='%23666' points='270 450 180 600 360 600'/%3E%3Cpolygon fill='%23AAA' points='270 450 360 300 180 300'/%3E%3Cpolygon fill='%23DDD' points='450 450 360 600 540 600'/%3E%3Cpolygon fill='%23999' points='450 450 540 300 360 300'/%3E%3Cpolygon fill='%23999' points='630 450 540 600 720 600'/%3E%3Cpolygon fill='%23FFF' points='630 450 720 300 540 300'/%3E%3Cpolygon points='810 450 720 600 900 600'/%3E%3Cpolygon fill='%23DDD' points='810 450 900 300 720 300'/%3E%3Cpolygon fill='%23AAA' points='990 450 900 600 1080 600'/%3E%3Cpolygon fill='%23444' points='990 450 1080 300 900 300'/%3E%3Cpolygon fill='%23222' points='90 750 0 900 180 900'/%3E%3Cpolygon points='270 750 180 900 360 900'/%3E%3Cpolygon fill='%23DDD' points='270 750 360 600 180 600'/%3E%3Cpolygon points='450 750 540 600 360 600'/%3E%3Cpolygon points='630 750 540 900 720 900'/%3E%3Cpolygon fill='%23444' points='630 750 720 600 540 600'/%3E%3Cpolygon fill='%23AAA' points='810 750 720 900 900 900'/%3E%3Cpolygon fill='%23666' points='810 750 900 600 720 600'/%3E%3Cpolygon fill='%23999' points='990 750 900 900 1080 900'/%3E%3Cpolygon fill='%23999' points='180 0 90 150 270 150'/%3E%3Cpolygon fill='%23444' points='360 0 270 150 450 150'/%3E%3Cpolygon fill='%23FFF' points='540 0 450 150 630 150'/%3E%3Cpolygon points='900 0 810 150 990 150'/%3E%3Cpolygon fill='%23222' points='0 300 -90 450 90 450'/%3E%3Cpolygon fill='%23FFF' points='0 300 90 150 -90 150'/%3E%3Cpolygon fill='%23FFF' points='180 300 90 450 270 450'/%3E%3Cpolygon fill='%23666' points='180 300 270 150 90 150'/%3E%3Cpolygon fill='%23222' points='360 300 270 450 450 450'/%3E%3Cpolygon fill='%23FFF' points='360 300 450 150 270 150'/%3E%3Cpolygon fill='%23444' points='540 300 450 450 630 450'/%3E%3Cpolygon fill='%23222' points='540 300 630 150 450 150'/%3E%3Cpolygon fill='%23AAA' points='720 300 630 450 810 450'/%3E%3Cpolygon fill='%23666' points='720 300 810 150 630 150'/%3E%3Cpolygon fill='%23FFF' points='900 300 810 450 990 450'/%3E%3Cpolygon fill='%23999' points='900 300 990 150 810 150'/%3E%3Cpolygon points='0 600 -90 750 90 750'/%3E%3Cpolygon fill='%23666' points='0 600 90 450 -90 450'/%3E%3Cpolygon fill='%23AAA' points='180 600 90 750 270 750'/%3E%3Cpolygon fill='%23444' points='180 600 270 450 90 450'/%3E%3Cpolygon fill='%23444' points='360 600 270 750 450 750'/%3E%3Cpolygon fill='%23999' points='360 600 450 450 270 450'/%3E%3Cpolygon fill='%23666' points='540 600 630 450 450 450'/%3E%3Cpolygon fill='%23222' points='720 600 630 750 810 750'/%3E%3Cpolygon fill='%23FFF' points='900 600 810 750 990 750'/%3E%3Cpolygon fill='%23222' points='900 600 990 450 810 450'/%3E%3Cpolygon fill='%23DDD' points='0 900 90 750 -90 750'/%3E%3Cpolygon fill='%23444' points='180 900 270 750 90 750'/%3E%3Cpolygon fill='%23FFF' points='360 900 450 750 270 750'/%3E%3Cpolygon fill='%23AAA' points='540 900 630 750 450 750'/%3E%3Cpolygon fill='%23FFF' points='720 900 810 750 630 750'/%3E%3Cpolygon fill='%23222' points='900 900 990 750 810 750'/%3E%3Cpolygon fill='%23222' points='1080 300 990 450 1170 450'/%3E%3Cpolygon fill='%23FFF' points='1080 300 1170 150 990 150'/%3E%3Cpolygon points='1080 600 990 750 1170 750'/%3E%3Cpolygon fill='%23666' points='1080 600 1170 450 990 450'/%3E%3Cpolygon fill='%23DDD' points='1080 900 1170 750 990 750'/%3E%3C/g%3E%3C/pattern%3E%3C/defs%3E%3Crect x='0' y='0' fill='url(%23a)' width='100%25' height='100%25'/%3E%3Crect x='0' y='0' fill='url(%23b)' width='100%25' height='100%25'/%3E%3C/svg%3E");
  background-attachment: fixed;
  background-size: cover;
  color: var(--text-color-light);
  height: 300vh;
  background-repeat: repeat;
}

.header {
  position: fixed;
  z-index: 1000;
  top: 0;
  left: 0;
  width: 100%;
  transition: top 0.3s ease-in-out;
}

header,
nav {
  text-align: center;
  display: flex;
  justify-content: space-between;
}
nav {
  animation: slide-down 2.5s ease;
  animation-fill-mode: forwards;
  opacity: 0;
  animation-delay: 3s;
}

nav ul,
.header-logo {
  display: flex;
  justify-content: center;
  align-items: center;
}
.header-logo {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-color-light);
  padding-left: 1rem;
  text-shadow: 2px 2px 2px var(--primary-color), -2px -2px 2px var(--accent-color);
  cursor: default;
  opacity: 0;
  animation: fade-in 2.5s ease;
  animation-fill-mode: forwards;
}

nav ul li {
  background-color: var(--accent-color);
  border-right: 1px solid var(--primary-color);
  list-style: none;
  height: 3rem;
  width: 8rem;
}
nav ul li:first-child {
  border-radius: 0 0 0 1rem;
}
nav ul li a {
  display: block;
  color: var(--text-color-dark);
  text-decoration: none;
  height: 100%;
  width: 100%;
  line-height: 3rem;
}
.header-resume {
  background-color: var(--primary-color);
}
.header-resume a {
  color: var(--text-color-light);
}
nav ul li,
a {
  transition: background-color 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
}
nav ul li:hover,
nav ul li.active {
  background-color: var(--hover-color-dark);
  box-shadow: 0 4px 0 var(--hover-color-light);
}
nav ul li:hover > a,
nav ul li.active > a {
  color: var(--text-color-light);
}
.header-resume:hover {
  background-color: var(--hover-color-light);
  box-shadow: 0 4px 0 var(--primary-color);
}
.header-resume:hover > a {
  color: var(--text-color-dark);
}

/* Animations */
.fade-in {
  opacity: 0;
  transition: opacity 2s ease-out, transform 2s ease-out;
}

.fade-in.animate {
  animation: pure-fade 3s ease;
  animation-fill-mode: forwards;
  animation-delay: 0.5s;
}

@keyframes fade-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes pure-fade {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
@keyframes slide-down {
  from {
    opacity: 0;
    transform: translateY(-100px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}