:root {
  --color-background-base: rgb(255, 255, 255);
  --color-background-hover: rgba(0, 0, 0, 0.05);
  --color-background-header: rgb(247, 247, 247);
  --color-background-accordion: rgba(0, 0, 0, 0.01);
  --color-border-accordion: rgba(0, 0, 0, 0.03);
  --color-border-content: rgba(0, 0, 0, 0.2);
  --color-text-base: rgba(0, 0, 0, 0.87);
  --color-text-selected: rgb(25, 118, 210);
  --color-text-header: rgba(0, 0, 0, 0.6);
  --color-text-inverted: rgb(255, 255, 255);
  --color-link: rgba(25, 118, 210, 0.4);
  --font-family-base: Roboto, Helvetica, Arial, sans-serif;
  --image-theme: url("/img/light-mode.svg");
  --header-height: 64px;
  --border-transparent: 2px solid transparent;
  --border-focus: 2px solid rgb(25, 118, 210);
}

.theme-dark {
  --color-background-base: rgb(18, 18, 18);
  --color-background-hover: rgba(255, 255, 255, 0.15);
  --color-background-header: rgb(42, 42, 42);
  --color-background-accordion: rgba(255, 255, 255, 0.05);
  --color-border-accordion: rgba(255, 255, 255, 0.1);
  --color-border-content: rgba(255, 255, 255, 0.2);
  --color-text-base: rgb(255, 255, 255);
  --color-text-selected: rgb(87, 204, 138);
  --color-text-header: rgba(255, 255, 255, 0.7);
  --color-text-inverted: rgba(0, 0, 0, 0.87);
  --color-link: rgba(87, 204, 138, 0.4);
  --font-family-base: Roboto, Helvetica, Arial, sans-serif;
  --image-theme: url("/img/dark-mode.svg");
  --header-height: 64px;
  --border-transparent: 2px solid transparent;
  --border-focus: 2px solid rgb(87, 204, 138);
}

/* true if mobile */
@media (max-width: 1023px) {
  .main {
    /* show side above content */
    flex-direction: column !important;
  }

  .hideOnMobile {
    display: none;
  }

  .content-tab {
    display: flex !important;
  }
}

/* true if desktop */
@media (min-width: 1024px) {
  .hideOnDesktop {
    display: none;
  }
}

html {
  height: 100%;
  box-sizing: border-box;
  scroll-padding-top: var(--header-height);
}

body {
  min-height: 100%;
  margin: 0;
  background-color: var(--color-background-base);
  padding-top: var(--header-height);
}

a {
  outline: 0;
  text-decoration: underline var(--color-link);

  &:hover {
    text-decoration-color: var(--color-text-selected);
  }

  &:focus-visible,
  &:focus {
    border: var(--border-focus);
  }
}

.text-normal {
  font-family: var(--font-family-base);
  font-weight: normal;
  font-size: 16px;
  line-height: 1.5;
  text-align: left;
  color: var(--color-text-base);
  margin: 0;
}

.text-small {
  font-family: var(--font-family-base);
  font-weight: normal;
  font-size: 14px;
  line-height: 1.5;
  text-align: left;
  color: var(--color-text-base);
  margin: 0;
}

.text-headline {
  font-family: var(--font-family-base);
  font-weight: normal;
  font-size: 20px;
  line-height: 1.5;
  text-align: left;
  color: var(--color-text-base);
  margin: 0;
}

.text-large {
  font-family: var(--font-family-base);
  font-weight: normal;
  font-size: 24px;
  line-height: 1.5;
  text-align: left;
  color: var(--color-text-base);
  margin: 0;
}

.text-title {
  font-family: var(--font-family-base);
  font-weight: normal;
  font-size: 24px;
  line-height: 1.5;
  text-align: center;
  color: var(--color-text-base);
  margin: 0;
}

.text-link {
  font-family: var(--font-family-base);
  font-weight: normal;
  font-size: 16px;
  line-height: 1.5;
  color: var(--color-text-selected);
  margin: 0;
}

.text-reference {
  font-family: var(--font-family-base);
  font-weight: normal;
  font-size: 20px;
  line-height: 1.5;
  color: var(--color-text-base);
  margin: 0;
}

.text-company {
  font-family: var(--font-family-base);
  font-weight: normal;
  font-size: 20px;
  line-height: 1.5;
  color: var(--color-text-header);
  margin: 0;
}

.menu {
  display: grid;
  opacity: 1;
  transition: visibility 0s, opacity 300ms ease-in-out;
  overflow: hidden;
  position: fixed;
  top: var(--header-height);
  z-index: 1000;
  visibility: visible;
  background-color: var(--color-background-header);

  &[aria-hidden="true"] {
    opacity: 0;
    visibility: hidden;
  }
}

.menu-item {
  color: var(--color-text-header);
  padding: 12px 16px;
  outline: 0;
  border: 0;
  cursor: pointer;
  border: none;
  background-color: var(--color-background-header);

  &:hover {
    background-color: var(--color-background-hover);
  }

  &:focus-visible,
  &:focus {
    border: var(--border-focus);
  }
}

.header {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  background-color: var(--color-background-header);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
}

.header-menu-icon {
  width: 40px;
  height: 40px;
  mask-size: 24px 24px;
  mask-repeat: no-repeat;
  mask-position: center;
  background-color: var(--color-text-base);
  mask-image: url("/img/menu.svg");
}

.header-menu-button {
  background-color: transparent;
  border: none;
  outline: 0;
  padding: 0;
  margin: 0;

  &:focus-visible,
  &:focus {
    border: var(--border-focus);
  }
}

.header-button {
  min-width: 90px;
  background-color: transparent;
  color: var(--color-text-header);
  padding: 12px 16px;
  outline: 0;
  border: 0;
  cursor: pointer;
  border-width: 2px;
  border-style: solid;
  border-color: transparent;

  &[aria-selected="true"] {
    color: var(--color-text-selected);
    border-bottom-color: var(--color-text-selected);
  }

  &:hover {
    background-color: var(--color-background-hover);
  }

  &:focus-visible,
  &:focus {
    background-color: var(--color-background-hover);
    border: var(--border-focus);
  }
}

.header-spacer {
  flex-grow: 1;
}

.theme-button {
  background-color: transparent;
  border: none;
  outline: 0;
  padding: 0;
  margin: 0;

  &:focus {
    border: var(--border-focus);
  }
}

.theme-icon {
  width: 48px;
  height: 40px;
  mask-size: 24px 24px;
  mask-repeat: no-repeat;
  mask-position: center;
  background-color: var(--color-text-base);
  mask-image: var(--image-theme);
}

.menu-language {
  display: flex;
  flex-direction: row;
  align-items: center;
}

.language-button {
  background-color: transparent;
  color: var(--color-text-header);
  padding: 12px;
  outline: 0;
  border: 0;
  cursor: pointer;

  &[aria-pressed="true"] {
    color: var(--color-text-selected);
    font-weight: bold;
  }

  &:hover {
    background-color: var(--color-background-hover);
  }

  &:focus-visible,
  &:focus {
    background-color: var(--color-background-hover);
    border: var(--border-focus);
  }
}

.main {
  display: flex;
  flex-direction: row;
}

.side {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 350px;
}

.side-avatar {
  display: flex;
  width: 240px;
  height: 240px;
  border-radius: 100%;
  border-width: 8px;
  border-style: solid;
  border-color: var(--color-text-selected);
  margin: 24px;
}

.side-oracle {
  width: 112px;
  height: 112px;
}

.content {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.content-headline {
  border-top: 1px solid var(--color-border-content);
  margin-top: 8px;
  padding: 4px 16px;
}

.content-tab {
  display: flex;
  flex-direction: column;

  &[aria-hidden="true"] {
    display: none;
  }
}

.accordion {
  display: flex;
  flex-direction: column;
  background-color: var(--color-background-accordion);
  border-color: var(--color-border-accordion);
  border-bottom-width: 1px;
  border-bottom-style: solid;
  border-collapse: separate;
}

#panel-projects .accordion:last-child {
  border-bottom: none;
}

.accordion-header {
  display: flex;
  flex-direction: row;
  align-items: center;
  outline: 0;
  border: var(--border-transparent);
  background-color: transparent;

  &:hover {
    background-color: var(--color-background-hover);
  }

  &:focus-visible,
  &:focus {
    border: var(--border-focus);
  }
}

.accordion-header[aria-expanded="true"] .accordion-header-icon {
  mask-image: url("/img/expand-less.svg");
}

.accordion-header[aria-expanded="false"] .accordion-header-icon {
  mask-image: url("/img/expand-more.svg");
}

.accordion-header-text {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  padding: 12px 8px;
}

.accordion-header-icon {
  width: 40px;
  height: 40px;
  mask-size: 24px 24px;
  mask-repeat: no-repeat;
  mask-position: center;
  background-color: var(--color-text-base);
}

.accordion-panel {
  display: grid;
  grid-template-rows: 1fr;
  transition: grid-template-rows 300ms ease-in-out;

  &[aria-hidden="true"] {
    grid-template-rows: 0fr;
  }
}

.accordion-collapsible {
  overflow: hidden;
}

.accordion-body {
  margin: 4px 16px;
}


.side-item {
  padding: 4px 16px;
}

.contact {
  display: grid;
  grid-template-columns: 60px 200px;
  row-gap: 6px;
  padding-top: 20px;
}

.contact-item-icon {
  grid-column: 1;
  justify-self: center;
  width: 40px;
  height: 40px;
  mask-size: 24px 24px;
  mask-repeat: no-repeat;
  mask-position: center;
  background-color: var(--color-text-base);
}

.contact-item-text {
  grid-column: 2;
  display: flex;
  flex-direction: row;
  align-items: center;
}

.reference {
  text-align: center;
  margin-bottom: 32px;
  max-width: 960px;
  padding: 16px;
}

.imprint {
  display: grid;
  grid-template-columns: [labels] auto [controls] 1fr;
  grid-auto-flow: row;
  gap: 0.8rem;
  padding: 1.2rem;
}

.skill-summary {
  max-width: 960px;
  padding: 16px;
}

.skill-container {
  max-width: 960px;
  padding: 16px;
}

.skill-group {
  margin-top: 16px;
}

.skill-item {
  font-family: var(--font-family-base);
  font-weight: normal;
  font-size: 14px;
  line-height: 1.5;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 24px;
  color: var(--color-text-inverted);
  background-color: var(--color-text-selected);
  border-radius: 16px;
  text-decoration: none;
  padding: 0px 8px;
  vertical-align: middle;
  margin: 4px;
}