:root {
  --font-family-primary: "Helvetica Neue", Helvetica, Arial, sans-serif;

  --font-header-size: 48px;
  --font-header-weight: 700;
  --font-header-letter-spacing: -0.1em;
  --font-header-line-height: 36px;

  --font-sub-header-size: 26px;
  --font-sub-header-weight: 400;
  --font-sub-header-letter-spacing: -0.1em;

  --font-body-size: 24px;
  --font-body-weight: 400;
  --font-body-letter-spacing: -0.06em;

  --font-thin-size: 24px;
  --font-thin-weight: 100;
  --font-thin-letter-spacing: -0.06em;

  --page-background: #ffffff;
  --page-text: #111111;
  --page-muted: #70706b;
  --page-rule: #d7d7cf;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  font-family: var(--font-family-primary);
  color: var(--page-text);
  background: var(--page-background);
}

body {
  min-height: 100vh;
  margin: 0;
  font-family: var(--font-family-primary);
  font-size: var(--font-body-size);
  font-weight: var(--font-body-weight);
  letter-spacing: var(--font-body-letter-spacing);
  background: var(--page-background);
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover,
a:focus-visible {
  text-decoration: none;
}

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

.font-header {
  margin: 0;
  font-family: var(--font-family-primary);
  font-size: var(--font-header-size);
  font-weight: var(--font-header-weight);
  letter-spacing: var(--font-header-letter-spacing);
  line-height: var(--font-header-line-height);
}

.font-sub-header {
  margin: 0;
  font-family: var(--font-family-primary);
  font-size: var(--font-sub-header-size);
  font-weight: var(--font-sub-header-weight);
  letter-spacing: var(--font-sub-header-letter-spacing);
  line-height: 1;
}

.font-body {
  margin: 0;
  font-family: var(--font-family-primary);
  font-size: var(--font-body-size);
  font-weight: var(--font-body-weight);
  letter-spacing: var(--font-body-letter-spacing);
  line-height: 1.08;
}

.font-thin {
  margin: 0;
  font-family: var(--font-family-primary);
  font-size: var(--font-thin-size);
  font-weight: var(--font-thin-weight);
  letter-spacing: var(--font-thin-letter-spacing);
  line-height: 1.08;
}

.portfolio-shell {
  display: grid;
  grid-template-columns: minmax(180px, 25vw) minmax(0, 1fr);
  min-height: 100vh;
}

.portfolio-sidebar {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  gap: 48px;
  padding: 32px;
}

.portfolio-brand {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.portfolio-nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-start;
}

.portfolio-nav a {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  color: var(--page-text);
}

.portfolio-nav a[aria-current="page"] {
  color: var(--page-muted);
}

.portfolio-viewport {
  display: flex;
  min-height: 100vh;
  padding: 32px;
}

.portfolio-viewport--center {
  align-items: center;
  justify-content: center;
}

.portfolio-intro {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.portfolio-media {
  width: min(620px, 100%);
  margin: auto;
}

.portfolio-media img {
  width: 100%;
  height: auto;
}

@media (max-width: 720px) {
  :root {
    --font-header-size: 40px;
    --font-header-line-height: 34px;
    --font-sub-header-size: 24px;
    --font-body-size: 22px;
    --font-thin-size: 22px;
  }

  .portfolio-shell {
    grid-template-columns: 1fr;
  }

  .portfolio-sidebar {
    min-height: auto;
    padding: 24px;
    border: 0;
  }

  .portfolio-viewport {
    min-height: calc(100vh - 142px);
    padding: 24px;
  }
}