@import url("https://fonts.googleapis.com/css2?family=Quicksand:wght@300..700&display=swap");

:root {
  --color-bg: #1b263b;
  --color-text: #e0e1dd;
  --color-accent: #0077b6;
  --color-accent-light: #caf0f8;
  font-size: 16px;
}

/* CSS Reset */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -moz-text-size-adjust: none;
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  scroll-behavior: smooth;
}

body,
h1,
h2,
h3,
h4,
p,
figure,
blockquote,
dl,
dd {
  margin-block-end: 0;
}

ul[role="list"],
ol[role="list"] {
  list-style: none;
}

a {
  text-decoration: none;
  background-color: transparent;
}

body {
  min-height: 100vh;
  line-height: 1.5;
  overflow-x: hidden;
}

h1,
h2,
h3,
h4,
button,
input,
label {
  line-height: 1.1;
}

h1,
h2,
h3,
h4 {
  text-wrap: balance;
  font-weight: 400;
  /* margin-bottom: 1em;  */
}

a:not([class]) {
  text-decoration-skip-ink: auto;
  color: currentColor;
}

img,
picture {
  max-width: 100%;
  display: block;
}

input,
button,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
}

textarea:not([rows]) {
  min-height: 10em;
}

:target {
  scroll-margin-block: 5ex;
}

body {
  background-color: var(--color-bg);
  color: #e0e1dd;
  font-family: "Quicksand", sans-serif;
  font-weight: 400;
  font-size: 1.2rem;
}

.hero {
  height: 100vh;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
}

.nav {
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  font-weight: 300;
  font-size: 1.2rem;
  text-transform: uppercase;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.5rem;
  font-weight: 300;
  text-transform: uppercase;
}
.logo img {
  width: 40px;
  height: 40px;
}

.mobile-logo {
  display: none;
}

.skip-link {
  display: block;
  width: fit-content;
  margin-inline: auto;
  text-align: center;
  color: #e0e1dd;
  font-size: 1.2rem;
}

.nav-links li,
.skip-link {
  position: relative;
  padding-bottom: 0.5rem;
  cursor: pointer;
}

.nav-links li::before,
.skip-link::before {
  content: "";
  position: absolute;
  display: block;
  bottom: 0;
  width: 0;
  height: 1px;
  background-color: #e0e1dd;
  transition: width 0.3s ease;
}

.nav-links li:hover::before,
.skip-link:hover::before {
  width: 100%;
}

section:not(.hero) {
  padding: 6rem 0;
}

h2 {
  font-size: 3rem;
  font-weight: 300;
  margin-bottom: 1em;
  transform: translateX(-100px);
  opacity: 0;
}

.section-p {
  margin-bottom: 1em;
  transform: translateX(-100px);
  opacity: 0;
}

.assigments-container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  opacity: 0;
  transform: translateX(-100px);
}

.assigment {
  cursor: pointer;
  width: 100%;
  aspect-ratio: 1 /1;
  border: 1px solid var(--color-text);
  color: var(--color-text);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: relative;
  z-index: 0;
}

.assigment h3,
.assigment h4 {
  text-align: center;
  margin-bottom: 1em;
}

.assigment::before {
  content: "Click to see more";
  display: grid;
  place-items: center;
  color: var(--color-bg);
  font-size: 1.5rem;
  position: absolute;
  inset: 0;
  background-color: var(--color-text);
  z-index: 1;
  transform: scale(0); /* start small */
  transform-origin: center; /* expand from center */
  transition: transform 0.3s ease;
}

.assigment:hover::before {
  transform: scale(1);
}

footer {
  padding: 3rem 0;
}

.popup {
  border: none;
  border-radius: 8px;
  padding: 2rem;
  max-width: 600px;
  width: 90%;
  background-color: var(--color-text);
  margin-inline: auto;
  max-height: 90vh;
  margin-block: auto;
}

.popup::backdrop {
  background: rgba(0, 0, 0, 0.28);
  opacity: 0;
}
.close-popup {
  cursor: pointer;
  position: absolute;
  background-color: transparent;
  top: 0;
  right: 0;
  border: none;
  padding: 0 12px;
  font-size: 60px;
  line-height: 60px;
}
/* popup animation */
.popup[open] {
  animation: fade-in 500ms forwards;
}

.popup[open]::backdrop {
  animation: fade-in 500ms forwards;
}

.popup[closing] {
  display: block;
  pointer-events: none;
  inset: 0;
  animation: fade-out 300ms forwards;
}

.popup[closing]::backdrop {
  animation: fade-out 300ms forwards;
}

@keyframes fade-in {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}

@keyframes fade-out {
  0% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
}

.popup h3 {
  margin-bottom: 1em;
  font-size: 2rem;
}

.popup h4 {
  margin-top: 1em;
}

.popup ul {
  margin-left: 1em;
  margin-bottom: 1em;
}

@media screen and (max-width: 768px) {
  .assigments-container {
    grid-template-columns: repeat(2, 1fr);
  }
  :root {
    font-size: 12px;
  }
  #canvas {
    display: none;
  }
  .hero {
    height: auto;
    position: relative;
  }
  .skip-link-container {
    position: absolute;
    bottom: 1rem;
    width: 100%;
    padding: 3rem 1rem;
  }
  .mobile-logo {
    display: block;
    width: 250px;
    margin: 7rem auto;
  }
  header {
    flex-direction: column;
    gap: 24px;
  }

  .hero {
    height: 100dvh;
  }

  section:not(.hero) {
    padding: 3rem 0;
  }
}