:root {
  color-scheme: light;
  --ink: #10201d;
  --bg: #f6faee;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

.page-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px 18px;
}

.profile {
  width: 100%;
  min-height: calc(100vh - 48px);
  display: grid;
  place-items: center;
}

.mark {
  width: min(80vw, 80vh, 860px);
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: contain;
}

@media (max-width: 640px) {
  .page-shell {
    padding: 18px;
  }

  .profile {
    min-height: calc(100vh - 36px);
  }

  .mark {
    width: min(86vw, 72vh);
  }
}