:root {
  --primary-color: rgb(39, 55, 77);
  --secondary-color: rgb(82, 109, 130);
  --tertiary-color: rgb(157, 178, 191);
  --quaternary-color: rgb(221, 230, 237);
  --background-color: white;
  --page-background: rgb(230, 230, 230);
  --page-foreground: rgb(24, 24, 32);
}
@media screen and (prefers-color-scheme: dark) {
  :root {
    --primary-color: rgb(224, 224, 224);
    --secondary-color: rgb(168, 168, 168);
    --tertiary-color: rgb(64, 64, 64);
    --quaternary-color: rgb(48, 48, 48);
    --background-color: rgb(32, 32, 32);
    --page-background: black;
    --page-foreground: rgb(224, 224, 224);
  }
}

html {
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
}

* {
  margin: 0;
}
a, a:hover, a:visited {
  color: inherit;
  text-decoration: none;
}

body {
  margin: 0 auto;
  min-width: 300px;
  max-width: 80em;
  font-family: Ubuntu, Verdana, sans-serif;
  background-color: var(--background-color);
  color: var(--primary-color);
}
@media screen and (min-width: 80em) {
  body {
    background-color: var(--page-background);
    color: var(--page-foreground);
    border: 1px solid var(--secondary-color);
  }
}
@media screen and (min-width: 80em) and (prefers-color-scheme: dark) {
  body {
    border: 1px solid var(--tertiary-color);
  }
}
h1 {
  font-size: 1.75em;
}
h2 {
  font-size: 1.5em;
  margin: 0 0 1em 0;
}
h3 {
  font-size: 1.25em;
  margin: 0 0 0.5em 0;
}
main p {
  margin: 1em 0 0 0;
  line-height: 1.5em;
}
@media screen and (min-width: 400px) {
  p {
    text-align: justify;
  }
}

header {
  width: 100%;
  min-height: 400px;
  background: linear-gradient(20deg, var(--primary-color), var(--secondary-color) 40% 60%, var(--primary-color));
  color: var(--quaternary-color);
  display: flex;
  flex-direction: column;
  justify-content: start;
  align-items: center;
  gap: 2em;
}
header nav {
  margin-top: 1.5em;
}
header nav ul {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1em 2em;
  list-style: none;
  padding: 0;
}
header nav li {
  display: inline-block;
  font-weight: bold;
}
header #avatar {
  background-color: var(--background-color);
  background-image: url("../img/avatar.png");
  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;
  aspect-ratio: 1 / 1;
  max-width: 300px;
  min-width: 100px;
  width: 90%;
  border: 4px solid var(--secondary-color);
  border-radius: 50%;
  margin-bottom: 2em;
}
@media screen and (prefers-color-scheme: dark) {
  header {
    background: linear-gradient(20deg, var(--quaternary-color), var(--tertiary-color) 40% 60%, var(--quaternary-color));
    color: var(--secondary-color);
  }
  header #avatar {
    border-color: var(--quaternary-color);
  }
}

article {
  width: 100%;
  background-color: var(--background-color);
  color: var(--primary-color);
}
section {
  padding: 4em 0;
}
section > div {
  margin: 0 auto;
  padding: 0em 2em;
  max-width: 60em;
}
@media print {
  section {
    padding: 2em 0;
  }
}

#skills {
  background-color: var(--quaternary-color);
}
#skills ul {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1em 2em;
}
#skills ul li span {
  display: inline-block;
}
#skills li {
  display: flex;
  align-items: center;
  gap: 0.25em 1em;
  flex-grow: 1;
  flex-wrap: wrap;
}
#skills .skill-icon {
  font-size: 2em;
  min-width: 1.5em;
  text-align: center;
}
#skills .skill-name {
  position: absolute;
  z-index: -1;
}
#skills .skill-name-level-separator {
  position: absolute;
  z-index: -1;
}

#skills .skill-level {
  border: 1px solid var(--secondary-color);
  border-radius: 0.2em;
  border-left: none;
  color: var(--secondary-color);
  min-width: 200px;
  flex-grow: 1;
}
#skills .skill-level > * {
  background-color: var(--secondary-color);
  color: transparent;
  white-space: nowrap;
  text-overflow: clip;
  border-radius: 0.2em 0 0 0.2em;
}
#skills .skill-level-1 {
  width: 10%;
}
#skills .skill-level-2 {
  width: 20%;
}
#skills .skill-level-3 {
  width: 30%;
}
#skills .skill-level-4 {
  width: 40%;
}
#skills .skill-level-5 {
  width: 50%;
}
#skills .skill-level-6 {
  width: 60%;
}
#skills .skill-level-7 {
  width: 70%;
}
#skills .skill-level-8 {
  width: 80%;
}
#skills .skill-level-8 {
  width: 80%;
}
#skills .skill-level-9 {
  width: 90%;
}
#skills .skill-level-10 {
  width: 100%;
}
@media screen and (max-width: 400px) {
  #skills .skill-level {
    min-width: 100px;
  }
}

#experience .job {
  display: grid;
  grid-template-columns: 1fr;
  align-items: start;
  margin: 2em 0 0 0;
}
.job-title-and-employer {
  width: 100%;
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 0 1em;
  align-items: center;
  margin: 0 0 0.25em 0;
}
.job-title-and-employer h3 {
  margin: 0;
}
#experience .job-employer {
  font-style: italic;
  font-weight: bold;
  color: var(--secondary-color);
  flex-grow: 1;
  text-align: right;
}

footer {
  width: 100%;
  min-height: 100px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 1.5em;
  padding: 0.5em 0;
}
@media screen {
  footer {
    /*background-color: var(--primary-color);*/
    background: linear-gradient(20deg, var(--secondary-color), var(--primary-color) 40% 60%, var(--secondary-color));
    color: var(--tertiary-color);
  }
}
@media screen and (prefers-color-scheme: dark) {
  footer {
    background: linear-gradient(20deg, var(--tertiary-color) , var(--quaternary-color) 40% 60%, var(--tertiary-color));
    color: var(--secondary-color);
  }
}
footer ul {
  list-style: none;
  display: flex;
  gap: 1em 3em;
  flex-wrap: wrap;
  justify-content: center;
  padding: 0;
}
footer li {
  display: inline-block;
}
footer .contact-method-name {
  display: none;
}
footer a {
  font-size: 1.75em;
}
footer .copyright {
  font-size: 0.65em;
}

@media print {
  header, footer {
    display: none;
  }
  #skills .skill-level > * {
    /* use box shadow as background doesn't show up when printing */
    box-shadow: inset 0 0 0 1000px var(--secondary-color);
  }
  #experience .job-employer {
    color: inherit;
  }
}