:root {
  --paper: #ffffff;
  --ink: #000000;
  --graphite: #6e6e73;
  --hairline: #e8e8eb;
  --signal: #0057ff;

  --serif: "Newsreader", "Iowan Old Style", Georgia, serif;
  --sans: "Geist", -apple-system, "Helvetica Neue", Arial, sans-serif;

  --gutter: clamp(1.25rem, 4vw, 3rem);
  --measure: 34rem;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible {
  outline: 1px solid var(--signal);
  outline-offset: 4px;
}

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

/* Header */

.site-header {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.75rem var(--gutter);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  font-variation-settings: "opsz" 36;
}

.wordmark .mark { width: 1.8rem; height: 1.8rem; flex: none; }

.site-nav { display: flex; gap: clamp(1.25rem, 3vw, 2.25rem); font-size: 0.9375rem; }
.site-nav a { color: var(--graphite); transition: color 150ms ease; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--ink); }

/* Home */

.hero {
  position: relative;
  flex: 1;
  display: flex;
  align-items: flex-end;
  min-height: calc(100svh - 5.5rem);
}

#worlds {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-copy {
  position: relative;
  z-index: 1;
  padding: 0 var(--gutter) clamp(3rem, 9vh, 6.5rem);
  max-width: 60rem;
}

.hero-copy h1 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 300;
  font-variation-settings: "opsz" 72;
  font-size: clamp(2.25rem, 5.2vw, 4.25rem);
  line-height: 1.04;
  letter-spacing: -0.022em;
  text-wrap: balance;
}

.hero-copy p {
  margin: 1.25rem 0 0;
  max-width: 28rem;
  color: var(--graphite);
  font-size: clamp(1rem, 1.3vw, 1.125rem);
}

.cta {
  display: inline-block;
  margin-top: 2.25rem;
  padding: 0.8rem 1.35rem;
  border: 1px solid var(--ink);
  border-radius: 999px;
  font-size: 0.9375rem;
  transition: background-color 150ms ease, color 150ms ease;
}
.cta:hover { background: var(--ink); color: var(--paper); }

/* Inner pages */

.page {
  flex: 1;
  width: 100%;
  padding: clamp(4rem, 12vh, 8rem) var(--gutter) 6rem;
}

.page-title {
  margin: 0;
  font-family: var(--serif);
  font-weight: 300;
  font-variation-settings: "opsz" 72;
  font-size: clamp(2.25rem, 4.5vw, 3.5rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.lede {
  margin: 1rem 0 0;
  max-width: var(--measure);
  color: var(--graphite);
  font-size: 1.0625rem;
}

.group { margin-top: clamp(3.5rem, 9vh, 5.5rem); }

.group-title {
  margin: 0 0 1.75rem;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--hairline);
  font-size: 0.9375rem;
  font-weight: 400;
  color: var(--graphite);
}

/* Team */

.people {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(15rem, 1fr));
  gap: 2.75rem var(--gutter);
  margin: 0;
  padding: 0;
  list-style: none;
}

.person .portrait {
  width: 7.5rem;
  height: 7.5rem;
  object-fit: cover;
  filter: grayscale(1) contrast(1.05);
  background: #f3f3f4;
}

.person .monogram {
  width: 7.5rem;
  height: 7.5rem;
  display: grid;
  place-items: center;
  background: #f3f3f4;
  font-family: var(--serif);
  font-size: 2rem;
  font-weight: 300;
  color: var(--graphite);
}

.person h3 {
  margin: 1.25rem 0 0;
  font-family: var(--serif);
  font-size: 1.375rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  font-variation-settings: "opsz" 24;
}

.person .role {
  margin: 0.25rem 0 0;
  color: var(--graphite);
  font-size: 0.9375rem;
}

.person .link {
  display: inline-block;
  margin-top: 0.75rem;
  font-size: 0.9375rem;
  border-bottom: 1px solid var(--hairline);
  transition: border-color 150ms ease;
}
.person .link:hover { border-color: var(--ink); }

.person.open .monogram { background: none; border: 1px dashed var(--hairline); }
.person.open h3 { color: var(--graphite); }

/* Lists (tools, podcast) */

.rows { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--hairline); }
.rows li { border-bottom: 1px solid var(--hairline); }

.row {
  display: grid;
  grid-template-columns: minmax(10rem, 18rem) 1fr auto;
  gap: 1rem var(--gutter);
  align-items: baseline;
  padding: 1.75rem 0;
}
a.row:hover .row-name { color: var(--signal); }

.row-name {
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  font-variation-settings: "opsz" 24;
  transition: color 150ms ease;
}

.row-desc { max-width: var(--measure); color: var(--graphite); }
.row-meta { color: var(--graphite); font-size: 0.9375rem; white-space: nowrap; }

.note { margin-top: 2.5rem; color: var(--graphite); }
.note a { color: var(--ink); border-bottom: 1px solid var(--hairline); }
.note a:hover { border-color: var(--ink); }

/* Legal text */

.prose { max-width: 40rem; }
.prose h2 {
  margin: 2.75rem 0 0.6rem;
  font-family: var(--serif);
  font-size: 1.375rem;
  font-weight: 400;
  font-variation-settings: "opsz" 24;
}
.prose p, .prose li { color: #3a3a3d; }
.prose ul { padding-left: 1.1rem; }
.prose li { margin: 0.4rem 0; }
.prose a { color: var(--ink); border-bottom: 1px solid var(--hairline); }
.prose .updated { margin-top: 3rem; color: var(--graphite); font-size: 0.875rem; }

/* Footer */

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem 2rem;
  padding: 1.5rem var(--gutter) 1.75rem;
  border-top: 1px solid var(--hairline);
  color: var(--graphite);
  font-size: 0.8125rem;
}
.site-footer nav { display: flex; gap: 1.5rem; }
.site-footer a:hover { color: var(--ink); }

.home .site-footer { border-top: 0; }

@media (max-width: 40rem) {
  .site-nav { gap: 1.1rem; font-size: 0.875rem; }
  .row { grid-template-columns: 1fr; gap: 0.35rem; }
  .people { grid-template-columns: 1fr 1fr; gap: 2.25rem 1.25rem; }
  .person .portrait, .person .monogram { width: 6rem; height: 6rem; }
}