:root {
  --bg: #ffffff;
  --text: #1c1c1c;
  --muted: #6b6b6b;
  --rule: #e4e4e4;
  --link: #1f4e79;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141414;
    --text: #ececec;
    --muted: #9a9a9a;
    --rule: #2c2c2c;
    --link: #8ab4e0;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Helvetica Neue", Arial, "Hiragino Sans", "Noto Sans JP", sans-serif;
  line-height: 1.7;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 760px; margin: 0 auto; padding: 0 20px; }

/* Top bar: language switch + CV, like the reference site */
.topbar {
  display: flex;
  justify-content: flex-end;
  gap: 20px;
  padding: 18px 0;
  font-size: 0.9rem;
  color: var(--muted);
}
.topbar .current { color: var(--text); font-weight: 600; }

header.name {
  padding: 72px 0 56px;
  border-bottom: 1px solid var(--rule);
}
header.name h1 {
  margin: 0;
  font-weight: 400;
  font-size: clamp(2rem, 6vw, 3rem);
  letter-spacing: 0.02em;
}
header.name .sub { margin: 8px 0 0; color: var(--muted); }

section { padding: 36px 0; border-bottom: 1px solid var(--rule); }
section h2 {
  margin: 0 0 12px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
section p { margin: 0 0 12px; }

footer { padding: 32px 0 48px; font-size: 0.85rem; color: var(--muted); }