:root {
  color-scheme: light dark;
  --background: #f7f7f4;
  --foreground: #222522;
  --muted: #63675f;
  --line: #d3d6cf;
  --accent: #b94723;
  --page-width: 80rem;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--background);
  color: var(--foreground);
}

* { box-sizing: border-box; }
body { margin: 0; }
a { color: inherit; text-underline-offset: 0.3em; }
a:hover { color: var(--accent); }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 6px; border-radius: 2px; }
::selection { background: var(--accent); color: var(--background); }
.page { max-width: var(--page-width); margin-inline: auto; padding-inline: clamp(1.5rem, 5vw, 5rem); }
.skip-link { position: absolute; z-index: 1; top: 1rem; left: 1rem; padding: 0.8rem 1rem; background: var(--foreground); color: var(--background); transform: translateY(-200%); }
.skip-link:focus { transform: translateY(0); }
.site-header { min-height: 7rem; display: flex; justify-content: space-between; align-items: center; gap: 2rem; }
.monogram { font-size: 1.5rem; font-weight: 750; letter-spacing: -0.07em; }
.mark, .title-mark { color: var(--accent); }
nav { display: flex; align-items: center; gap: clamp(1.5rem, 4vw, 3rem); font-size: 0.9375rem; }
nav a, .site-footer a { text-decoration: none; }
nav a:hover, .site-footer a:hover { text-decoration: underline; }
.intro { padding-top: clamp(4rem, 10vw, 8rem); padding-bottom: clamp(3.5rem, 8vw, 7rem); }
.eyebrow { margin: 0 0 1.75rem; font-family: ui-monospace, "SFMono-Regular", Consolas, monospace; font-size: 0.8125rem; line-height: 1.6; letter-spacing: 0.16em; color: var(--muted); }
h1 { display: flex; flex-wrap: wrap; margin: 0; font-size: clamp(3.5rem, 11.25vw, 9rem); font-weight: 650; line-height: 1.04; letter-spacing: -0.065em; }
h1 > span { white-space: nowrap; }
.title-mark { margin-left: 0.025em; }
.intro-rule { display: flex; align-items: center; height: 1px; margin-top: clamp(3rem, 6vw, 5rem); background: var(--line); }
.intro-rule span { width: 3rem; height: 3px; background: var(--accent); }
.about { display: grid; grid-template-columns: 1fr 2fr; gap: 2rem; padding-bottom: clamp(5rem, 10vw, 9rem); scroll-margin-top: 2rem; }
h2 { margin: 0; display: flex; flex-direction: column; align-items: flex-start; gap: 0.5rem; font-size: 1rem; line-height: 1.5; font-weight: 600; }
.heading-translation { font-size: 0.875rem; color: var(--muted); font-weight: 400; }
.about-body p { margin: 0 0 1.5rem; font-size: 1.125rem; line-height: 1.9; }
.profile-link { display: inline-block; font-size: 1rem; line-height: 1.75; overflow-wrap: anywhere; text-decoration-color: var(--line); }
.profile-link:hover { text-decoration-color: var(--accent); }
.site-footer { display: flex; justify-content: space-between; align-items: center; gap: 1.5rem; border-top: 1px solid var(--line); padding-block: 1.75rem 2rem; font-size: 0.875rem; line-height: 1.6; color: var(--muted); }
.error-page { max-width: 40rem; min-height: 100svh; display: flex; flex-direction: column; justify-content: center; align-items: flex-start; padding-block: 3rem; }
.error-page h1 { font-size: clamp(4rem, 15vw, 7rem); }
.error-page p { font-size: 1.125rem; line-height: 1.8; }

@media (max-width: 40rem) {
  .site-header { min-height: 5.5rem; }
  .intro { padding-top: 4.5rem; padding-bottom: 3rem; }
  h1 { flex-direction: column; font-size: clamp(3.5rem, 18vw, 7rem); }
  .eyebrow { margin-bottom: 1.5rem; }
  .about { grid-template-columns: 1fr; gap: 1.5rem; padding-bottom: 5rem; }
  h2 { flex-direction: row; align-items: baseline; gap: 0.75rem; }
  .about-body p { font-size: 1rem; }
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #191c19;
    --foreground: #eef0e9;
    --muted: #a8afa4;
    --line: #3e453c;
    --accent: #ef9976;
  }
}