/* Wondering Works — shared stylesheet */

:root {
  --paper:   #FAF9F6;
  --surface: #F2F0EA;
  --ink:     #15181E;
  --brand:   #1F3D46;
  --brass:   #9A6E22;
  --muted:   #6A7480;
  --rule:    #E2DED4;

  --display: 'Iowan Old Style', 'Hoefler Text', 'New York', ui-serif, Georgia, serif;
  --body: -apple-system, BlinkMacSystemFont, 'SF Pro Text', ui-sans-serif, system-ui, sans-serif;
  --mono: ui-monospace, 'SF Mono', SFMono-Regular, Menlo, Consolas, monospace;
  --cjk: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', var(--body);

  --frame: 1000px;
  --gutter: clamp(1.25rem, 5vw, 3.5rem);
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper:   #101319;
    --surface: #171B22;
    --ink:     #E9E7E1;
    --brand:   #8FBAC5;
    --brass:   #D8A85A;
    --muted:   #939BA7;
    --rule:    #262B33;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.frame {
  max-width: var(--frame);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---------- masthead ---------- */
.masthead {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.75rem;
  flex-wrap: wrap;
}
.wordmark {
  font-family: var(--display);
  font-size: 1.0625rem;
  letter-spacing: 0.01em;
  color: var(--ink);
  text-decoration: none;
}
.wordmark span { color: var(--brass); }
.nav {
  display: flex;
  gap: 1.5rem;
  font-family: var(--mono);
  font-size: 0.6875rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}
.nav a { color: var(--muted); text-decoration: none; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); }

/* ---------- hero ---------- */
.hero { padding-block: clamp(3rem, 11vh, 6.5rem) clamp(3rem, 9vh, 5rem); }
.hero-lede {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(2.1rem, 5.6vw, 3.5rem);
  line-height: 1.14;
  letter-spacing: -0.015em;
  text-wrap: balance;
  margin: 0;
  max-width: 20ch;
}
.hero-lede em { font-style: italic; color: var(--brand); }
.hero-cn {
  font-family: var(--cjk);
  font-weight: 300;
  font-size: clamp(1.05rem, 2.4vw, 1.35rem);
  line-height: 1.8;
  color: var(--muted);
  margin: 1.5rem 0 0;
  max-width: 28ch;
  letter-spacing: 0.02em;
}
.hero-note {
  margin: 2.25rem 0 0;
  max-width: 54ch;
  color: var(--muted);
  font-size: 1rem;
}

.reveal { animation: rise 0.7s cubic-bezier(.2,.7,.2,1) both; }
.reveal-2 { animation-delay: 0.1s; }
.reveal-3 { animation-delay: 0.19s; }
@keyframes rise {
  from { opacity: 0; transform: translateY(0.6rem); }
  to   { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) { .reveal { animation: none; } }

/* ---------- sections ---------- */
.section { padding-block: clamp(2.5rem, 6vh, 4rem); }
.section-head {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--rule);
}
.section-head .cn {
  font-family: var(--cjk);
  font-size: 1.0625rem;
  font-weight: 400;
  color: var(--ink);
  letter-spacing: 0.04em;
}
.section-head .en {
  font-family: var(--mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------- work rows ---------- */
.entry {
  display: grid;
  grid-template-columns: 8.5rem 1fr;
  gap: 0 2.5rem;
  padding-block: 2rem;
  border-bottom: 1px solid var(--rule);
  align-items: start;
}
.meta {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-family: var(--mono);
  font-size: 0.6875rem;
  letter-spacing: 0.07em;
  color: var(--muted);
  padding-top: 0.45rem;
}
.status { text-transform: uppercase; color: var(--brass); font-weight: 600; }
.entry-title {
  font-family: var(--display);
  font-size: 1.65rem;
  line-height: 1.2;
  margin: 0;
  letter-spacing: -0.01em;
}
.entry-title a { color: inherit; text-decoration: none; }
.entry-title a:hover { color: var(--brand); }
.entry-cn {
  font-family: var(--cjk);
  font-weight: 300;
  color: var(--muted);
  font-size: 0.95rem;
  margin: 0.35rem 0 0;
  letter-spacing: 0.02em;
}
.entry-body { margin: 0.9rem 0 0; max-width: 58ch; }
.entry-links { display: flex; gap: 1.25rem; margin-top: 1rem; flex-wrap: wrap; }

a.link {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--brand);
  text-decoration: none;
  border-bottom: 1px solid color-mix(in srgb, var(--brand) 35%, transparent);
  padding-bottom: 1px;
}
a.link:hover, a.link:focus-visible { border-bottom-color: var(--brand); }

/* ---------- prose (legal + article pages) ---------- */
.page-title {
  font-family: var(--display);
  font-size: clamp(1.9rem, 4.5vw, 2.75rem);
  line-height: 1.15;
  letter-spacing: -0.015em;
  margin: 0 0 0.5rem;
  text-wrap: balance;
}
.page-cn {
  font-family: var(--cjk);
  font-weight: 300;
  color: var(--muted);
  margin: 0 0 0.75rem;
  letter-spacing: 0.03em;
}
.page-stamp {
  font-family: var(--mono);
  font-size: 0.6875rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 2.5rem;
}
.prose { max-width: 66ch; }
.prose h2 {
  font-family: var(--display);
  font-size: 1.35rem;
  letter-spacing: -0.01em;
  margin: 2.5rem 0 0.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
}
.prose h2:first-of-type { margin-top: 1rem; }
.prose h3 {
  font-family: var(--body);
  font-size: 1rem;
  font-weight: 650;
  margin: 1.75rem 0 0.5rem;
}
.prose p { margin: 0 0 1.1rem; }
.prose ul { margin: 0 0 1.1rem; padding-left: 1.25rem; }
.prose li { margin-bottom: 0.55rem; }
.prose a { color: var(--brand); }
.prose strong { font-weight: 650; }

.callout {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 3px;
  padding: 1.25rem 1.5rem;
  margin: 0 0 1.75rem;
}
.callout p { margin: 0; }

/* ---------- contact ---------- */
.contact-card {
  margin-top: 1.75rem;
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 3px;
  padding: 1.5rem 1.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 3rem;
}
.field { display: flex; flex-direction: column; gap: 0.3rem; }
.field-label {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--muted);
}
.field-value { font-size: 1rem; }
.field-value a {
  color: var(--brand);
  text-decoration: none;
  border-bottom: 1px solid color-mix(in srgb, var(--brand) 35%, transparent);
}
.field-value a:hover { border-bottom-color: var(--brand); }

/* ---------- footer: the legal-identity block ---------- */
footer {
  border-top: 1px solid var(--rule);
  margin-top: clamp(2.5rem, 7vh, 4.5rem);
  padding-block: 2.25rem 3.5rem;
}
.legal {
  font-family: var(--mono);
  font-size: 0.75rem;
  line-height: 1.85;
  color: var(--muted);
  max-width: 66ch;
  margin: 0;
}
.legal strong { color: var(--ink); font-weight: 600; }
.legal a { color: var(--muted); }
.footer-links { display: flex; gap: 1.5rem; margin-top: 1.25rem; flex-wrap: wrap; }

a:focus-visible, .link:focus-visible, .wordmark:focus-visible {
  outline: 2px solid var(--brass);
  outline-offset: 3px;
  border-radius: 2px;
}

@media (max-width: 640px) {
  .entry { grid-template-columns: 1fr; gap: 0.75rem; }
  .meta { flex-direction: row; gap: 1rem; padding-top: 0; }
  .masthead { padding-block: 1.25rem; }
}