@font-face {
  font-family: "Sora";
  src: url("fonts/Sora-VariableFont_wght.ttf") format("truetype");
  font-style: normal;
  font-weight: 100 800;
  font-display: swap;
}
:root {
  --background: #f5f6f8;
  --foreground: #131d35;
  --muted: #526078;
  --line: #dbe2f1;
  --focus: #4865b0;
}

* {
  box-sizing: border-box;
}
body {
  min-height: 100svh;
  margin: 0;
  display: flex;
  flex-direction: column;
  background: var(--background);
  color: var(--foreground);
  font-family: "Sora", system-ui, sans-serif;
  line-height: 1.8;
}
a {
  color: inherit;
  text-underline-offset: 0.2em;
}
a:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 4px;
}
.shell {
  width: min(calc(100% - 3rem), 48rem);
  margin-inline: auto;
}
header {
  padding-block: 1.5rem;
  border-bottom: 1px solid var(--line);
}
header .shell {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
}
.brand {
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
}
.back {
  font-size: 0.875rem;
}
main {
  flex: 1;
  padding-block: clamp(2rem, 6vw, 4rem);
}
h1 {
  margin: 0 0 1.25rem;
  font-size: clamp(1.8rem, 5vw, 2.75rem);
  line-height: 1.2;
  letter-spacing: -0.04em;
}
h2 {
  margin: 2rem 0 0.5rem;
  font-size: 1.15rem;
  line-height: 1.5;
}
p {
  margin: 0 0 1rem;
  color: var(--muted);
}
footer {
  padding-block: 1.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.875rem;
}
footer .shell {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  justify-content: space-between;
}
@media (max-width: 25rem) {
  .shell {
    width: calc(100% - 2rem);
  }
}