/* Desktop first approach */

@media (max-width: 1280px) {
  #skills {
    padding-left: 40px;
    padding-right: 40px;
  }
}

@media (max-width: 768px) {
  #hamburger {
    display: block;
    position: relative;
    height: 24px;
    margin: auto 0;
  }

  #hamburger.menu-active .patty {
    opacity: 0;
  }

  #hamburger.menu-active::before {
    rotate: 225deg;
    top: 42.5%; /* best position to make a cross */
  }

  #hamburger.menu-active::after {
    rotate: -225deg;
    bottom: 42.5%; /* best position to make a cross */
  }

  #navbar {
    max-height: 0;
    overflow: hidden;
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100vw; /* make it to cover entire screen width */
    margin: 0;
    background-color: var(--primary-black-color);
  }

  #navbar ul {
    flex-direction: column;
    gap: 0;
  }

  #navbar li {
    width: 100%; /* make border refer to navbar width */
    border-top: 0.5px solid gray;
    text-align: center;
  }

  #navbar li:hover {
    border-radius: 0;
  }

  #navbar li a {
    width: 100%; /* make clickable area refer to navbar width */
    padding: 8px 0;
  }

  #about .content {
    gap: 1rem;
  }

  #about .content img {
    height: 200px;
    border-radius: 2rem;
  }

  #about .content p {
    font-size: 1rem;
  }

  #project .card {
    width: 480px;
    aspect-ratio: 3/4;
  }

  #project .card .image {
    background-image: url("/assets/tastdy-portrait.png"); /* change image */
  }

  #skills {
    padding-left: 10px;
    padding-right: 10px;
    padding-bottom: 40px;
  }

  #skills .content {
    gap: 10px;
  }

  #skills .skill {
    padding: 12px 0 1.5rem;
  }

  #skills .skill img {
    transform: scale(0.8);
  }

  #skills .skill figcaption {
    font-size: 0.9rem;
  }
}

@media (max-width: 640px) {
  #about .content {
    flex-direction: column;
    align-items: center;
  }

  #about .content img {
    height: 250px;
  }

  #about .content p {
    text-align: center;
  }

  #education .content p {
    font-size: 1.5rem;
  }

  #education .content .year-taken {
    font-size: 1rem;
  }

  #skills .content {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    grid-template-rows: repeat(5, minmax(0, 1fr));
    gap: 10px;
  }
}

@media (max-width: 576px) {
  #home .content h1 {
    padding: 0 1rem;
  }

  #about .content {
    padding: 0 1rem;
  }

  /* We use n-th child to make specificity equal to larger's sceen css */
  #experience .checkpoint:nth-child(n) {
    padding: calc(var(--experience-box-gap) / 2) 0;
    border: none;
    transform: none;
  }

  #experience .checkpoint:nth-child(n) div {
    border-radius: 6px;
    transform: translateY(calc(-1 / 2 * var(--experience-box-gap)));
    position: relative; /* to make z-index works */
    z-index: 1;
  }

  #experience .checkpoint:nth-child(n)::before {
    left: 50%;
    transform: translate(
      calc(-1 * var(--experience-checkpoint-x-translation)),
      -50%
    );
  }

  /* use this as a line instead of timeline border */
  #experience .checkpoint::after {
    content: "";
    background-color: var(--primary-red-color);
    width: var(--experience-line-width);
    height: 100%;
    position: absolute;
    bottom: 0;
    left: calc(50% - var(--experience-line-width));
  }

  #project .card {
    width: 420px;
  }

  #education .content {
    padding: 0 1rem;
  }

  #education .content p {
    font-size: 1.2rem;
  }

  #skills .content {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    grid-template-rows: repeat(6, minmax(0, 1fr));
    gap: 10px;
  }

  #footer {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  #footer .content {
    text-align: center;
  }

  #footer .contact h3 {
    text-align: center;
  }
}

@media (max-width: 480px) {
  #project .card {
    width: 300px;
  }
}