:root {
  --bg: #faf9f6;
  --text: #1c1c1e;
  --text-muted: #5b5f66;
  --accent: #1f3a5f;
  --accent-soft: #eef2f7;
  --rule: #d8dbe0;
  --radius: 6px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12151b;
    --text: #eceef1;
    --text-muted: #9aa2ad;
    --accent: #7fa8d9;
    --accent-soft: #1e2733;
    --rule: #2a2f3a;
  }
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-weight: 400;
  line-height: 1.75;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 6rem 1.5rem 5rem;
  min-height: 100vh;
}

.profile-header {
  text-align: center;
  max-width: 40rem;
}

.name {
  font-family: "Shippori Mincho", serif;
  font-weight: 600;
  font-size: 2.4rem;
  letter-spacing: 0.04em;
  margin: 0 0 0.75rem;
  color: var(--text);
}

.tagline {
  font-size: 1.05rem;
  color: var(--accent);
  margin: 0 0 0.35rem;
  font-weight: 500;
}

.location {
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 0;
}

.divider {
  width: 2.5rem;
  height: 2px;
  background: var(--accent);
  border: none;
  margin: 2.5rem 0;
}

.profile-content {
  max-width: 34rem;
  width: 100%;
}

.profile-content p {
  color: var(--text);
  font-size: 1rem;
}

.profile-content h2 {
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 500;
  margin: 3rem 0 1rem;
}

.link-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 1.2rem;
  margin: 0 0.5rem 0.75rem 0;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  color: var(--text);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}

.link-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}