/* Primary navigation owns header layout, wordmark sizing, colors, and interaction. */
:is(.masthead, .work-header) {
  --nav-gutter-total: 128px;
  position: relative;
  z-index: 20;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  column-gap: 24px;
}

.home-page .masthead {
  margin-bottom: 16px;
  color: var(--green-lighter);
}

body.dynamic-wordmark > .masthead {
  width: 100%;
  max-width: var(--content-max);
  margin-inline: auto;
  padding: 48px 64px 0;
}

body.dynamic-wordmark > .masthead .wordmark {
  color: var(--green-darker);
}

body.dynamic-wordmark > .masthead .masthead__nav {
  color: var(--green-shag);
}

:is(.arcade-page, .play-page, .logger-page) > .masthead {
  height: 130px;
  padding: 48px 64px 0;
  background: var(--project-dark);
  color: var(--green-lighter);
}

.work-header {
  min-height: 130px;
  padding: 48px 64px 34px;
  background: var(--project-dark);
  color: var(--green-lighter);
}

:is(.wordmark, .work-header__wordmark) {
  min-width: 0;
  flex: 0 0 auto;
  color: inherit;
  font: 400 48px/.72 var(--display);
  letter-spacing: 0;
  white-space: nowrap;
  transform-origin: left top;
}

.dynamic-wordmark :is(.wordmark, .work-header__wordmark) {
  font-size: clamp(48px, calc((100vw - 425px) / 10), 91px);
}

:is(.masthead__nav, .work-header__nav) {
  display: flex;
  flex: 0 0 auto;
  gap: 24px;
  color: inherit;
  font: 400 16px/20px var(--serif);
  letter-spacing: -.8px;
}

:is(.masthead__nav, .work-header__nav) a {
  position: relative;
  display: inline-flex;
  height: 24px;
  align-items: center;
  color: inherit;
  white-space: nowrap;
  transform: translateY(0);
  transition: transform 180ms ease-out;
}

:is(.masthead__nav, .work-header__nav) a::after {
  content: "";
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  left: 0;
  height: 1px;
  background: currentColor;
  opacity: 0;
  transform: scaleX(0);
  transform-origin: left;
  transition: opacity 180ms ease-out, transform 180ms ease-out;
  pointer-events: none;
}

:is(.masthead__nav, .work-header__nav) a:is(.is-current, [aria-current="page"])::after,
:is(.masthead__nav, .work-header__nav) a:focus-visible::after {
  opacity: 1;
  transform: scaleX(1);
}

@media (hover: hover) {
  :is(.masthead__nav, .work-header__nav) a:hover {
    transform: translateY(-3px);
  }

  :is(.masthead__nav, .work-header__nav) a:hover::after {
    opacity: 1;
    transform: scaleX(1);
  }
}

@media (max-width: 1000px) {
  :is(.arcade-page, .play-page, .logger-page) > .masthead {
    height: 112px;
    padding: 36px 64px 0;
  }

  .work-header {
    min-height: 112px;
    padding: 40px 64px 34px;
  }
}

@media (max-width: 900px) {
  :is(.masthead, .work-header) {
    height: auto;
    flex-direction: column;
    gap: 22px;
  }

  :is(.wordmark, .work-header__wordmark) {
    width: 100%;
    max-width: none;
    font-size: calc((100vw - var(--nav-gutter-total)) / 10);
  }

  :is(.masthead__nav, .work-header__nav) {
    width: 100%;
    justify-content: space-between;
    gap: 16px;
  }

  body.dynamic-wordmark > .masthead {
    padding-top: 28px;
  }
}

@media (max-width: 800px) {
  :is(.masthead, .work-header) {
    --nav-gutter-total: 48px;
  }

  .home-page .masthead {
    gap: 26px;
    margin-bottom: 24px;
  }

  body.dynamic-wordmark > .masthead {
    padding-right: 24px;
    padding-left: 24px;
  }

  :is(.arcade-page, .play-page, .logger-page) > .masthead {
    padding: 28px 24px;
  }

  .work-header {
    padding-right: 24px;
    padding-left: 24px;
  }

  :is(.masthead__nav, .work-header__nav) {
    font-size: 13px;
    line-height: 16px;
    letter-spacing: -.5px;
  }
}