:root {
  color: #252522;
  background: #f5f2ea;
  font-family: "Yu Mincho", "Hiragino Mincho ProN", "Noto Serif JP", serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 74% 18%, rgba(255, 255, 255, 0.72), transparent 31rem),
    #f5f2ea;
}

main {
  width: min(1120px, calc(100% - 96px));
  min-height: 100vh;
  margin: 0 auto;
  padding: clamp(72px, 12vh, 136px) 0 80px;
}

header { margin-bottom: clamp(120px, 22vh, 230px); }

h1 {
  margin: 0;
  font-size: clamp(2rem, 4.2vw, 4rem);
  font-weight: 400;
  letter-spacing: 0.18em;
}

nav { border-top: 1px solid rgba(37, 37, 34, 0.22); }

.branch {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 2rem;
  gap: 2rem;
  align-items: baseline;
  padding: 2.6rem 0;
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid rgba(37, 37, 34, 0.22);
  transition: color 180ms ease, padding 180ms ease;
}

.branch:hover,
.branch:focus-visible {
  padding-left: 0.5rem;
  outline: none;
}

.branch:hover,
.branch:focus-visible { color: #c75033; }

.title {
  font-size: clamp(1.3rem, 2.4vw, 2rem);
  letter-spacing: 0.1em;
}

.arrow {
  justify-self: end;
  font-size: 1.2rem;
}

@media (max-width: 680px) {
  main {
    width: min(100% - 40px, 1120px);
    padding-top: 56px;
  }

  header { margin-bottom: 112px; }

  .branch {
    grid-template-columns: minmax(0, 1fr) 1.5rem;
    gap: 1rem;
    padding: 2rem 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .branch { transition: none; }
}