* {
  box-sizing: border-box;
}

:root {
  --pad-x: 5%;
  --header-h: 15vh;
  --footer-h: 5vh;
}

body {
  margin: 0;
  font-family: "helvetica", "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: #000;
  background: #fff;
}

header {
  height: var(--header-h);
  padding: 0 var(--pad-x);
  display: flex;
  align-items: center;
  text-align: left;
}

header h1 {
  margin: 0;
  font-size: clamp(1.5rem, 4vw, 3rem);
  letter-spacing: 0.02em;
}

main {
  min-height: calc(100vh - var(--header-h) - var(--footer-h));
  padding: 0 var(--pad-x) 4rem;
}

footer {
  height: var(--footer-h);
  padding: 0 var(--pad-x);
  display: flex;
  align-items: center;
  border-top: 1px solid #ccc;
}

footer p {
  margin: 0;
  font-size: 0.75rem;
}

.intro {
  max-width: 65ch;
  padding: 2rem 0;
}

.intro p {
  font-size: 1rem;
  line-height: 1.6;
  margin: 0 0 1rem;
}

.section h2 {
  text-transform: uppercase;
  font-size: 1.25rem;
  border-top: 1px solid #000;
  padding-top: 1rem;
  margin: 3rem 0 1.5rem;
}

.group h3 {
  text-transform: uppercase;
  font-size: 1rem;
  margin: 2rem 0 0.5rem;
}

.group h4 {
  font-size: 0.85rem;
  font-weight: 400;
  margin: 1.5rem 0 0.75rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  align-items: start;
}

figure {
  margin: 0;
}

figure img {
  width: 100%;
  height: auto;
  display: block;
  background: #fafafa;
}

figcaption {
  font-size: 0.7rem;
  padding-top: 0.4rem;
  color: #555;
}