/* ============================================================
   chiehnengwu.dev — quiet, text-first engineer résumé page
   ============================================================ */

:root {
  --bg: #fdfdfc;
  --text: #1c1e21;
  --text-dim: #4b5563;
  --text-faint: #878e99;
  --line: #e6e4df;
  --accent: #9a5b13;         /* muted copper */
  --code-bg: #f4f2ee;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101318;
    --text: #dde1e7;
    --text-dim: #a3abb8;
    --text-faint: #6d7684;
    --line: #262b33;
    --accent: #d09a52;
    --code-bg: #181d24;
  }
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 15.5px;
  line-height: 1.65;
  max-width: 760px;
  margin: 0 auto;
  padding: 0 22px;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

.skip-link {
  position: absolute; left: -9999px;
  background: var(--accent); color: var(--bg); padding: 8px 14px;
}
.skip-link:focus { left: 8px; top: 8px; z-index: 10; }

/* ---------- header ---------- */

.site-header {
  display: flex; justify-content: space-between; align-items: baseline;
  flex-wrap: wrap; gap: 8px 20px;
  padding: 26px 0 0;
}
.brand {
  font-family: var(--font-mono); font-size: 0.85rem; font-weight: 500;
  color: var(--text);
}
.brand:hover { color: var(--accent); text-decoration: none; }
.site-header nav { display: flex; flex-wrap: wrap; gap: 8px 18px; }
.site-header nav a {
  font-family: var(--font-mono); font-size: 0.78rem; color: var(--text-faint);
}
.site-header nav a:hover { color: var(--accent); }

/* ---------- intro ---------- */

.intro { padding: 56px 0 8px; }

h1 { font-size: 1.5rem; font-weight: 700; letter-spacing: -0.01em; }
.alt-name { color: var(--text-faint); font-weight: 400; font-size: 1.1rem; }

.role { color: var(--text-dim); margin: 2px 0 18px; }

.intro > p { margin-bottom: 14px; color: var(--text-dim); }
.intro > p:first-of-type { color: var(--text-dim); }

.meta { font-size: 0.92rem; }

.range {
  font-family: var(--font-mono); font-size: 0.76rem;
  color: var(--text-faint); letter-spacing: 0.01em;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  padding: 10px 0; margin: 20px 0 0 !important;
}

.highlights {
  list-style: none;
  margin: 22px 0 8px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 8px 28px;
}
.highlights li {
  font-size: 0.9rem; color: var(--text-dim);
  padding-left: 14px; position: relative;
}
.highlights li::before {
  content: "–"; position: absolute; left: 0; color: var(--accent);
}
.highlights strong { color: var(--text); font-weight: 600; }

/* ---------- sections ---------- */

.section { padding: 40px 0 8px; }

h2 {
  font-size: 1.05rem; font-weight: 700;
  letter-spacing: 0.01em;
  border-bottom: 1px solid var(--line);
  padding-bottom: 8px; margin-bottom: 22px;
}
h2::before {
  content: "# "; color: var(--accent); font-family: var(--font-mono);
  font-weight: 400;
}

.section-note {
  font-size: 0.88rem; color: var(--text-faint);
  margin: -12px 0 22px;
}

h3 { font-size: 0.98rem; font-weight: 600; line-height: 1.45; }

/* ---------- experience ---------- */

.entry {
  display: grid; grid-template-columns: 128px 1fr; gap: 20px;
  margin-bottom: 26px;
}
.entry-meta { display: flex; flex-direction: column; padding-top: 2px; }
.dates { font-family: var(--font-mono); font-size: 0.78rem; color: var(--text); }
.place { font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-faint); }
.entry-body h3 { margin-bottom: 6px; }
.entry-body p { font-size: 0.92rem; color: var(--text-dim); }

/* ---------- selected work ---------- */

.case { margin-bottom: 26px; }
.case h3 { margin-bottom: 6px; }
.case p { font-size: 0.92rem; color: var(--text-dim); }

.tag {
  font-family: var(--font-mono); font-size: 0.68rem; font-weight: 400;
  color: var(--accent); border: 1px solid var(--line);
  padding: 1px 8px; border-radius: 999px;
  white-space: nowrap; vertical-align: 2px; margin-left: 6px;
}

.outcomes {
  list-style: none; margin-top: 8px;
}
.outcomes li {
  font-size: 0.9rem; color: var(--text-dim);
  padding-left: 16px; position: relative;
}
.outcomes li::before {
  content: "✓"; position: absolute; left: 0;
  color: var(--accent); font-size: 0.82rem;
}

/* ---------- debug stories ---------- */

.story { margin-bottom: 30px; }
.story h3 { margin-bottom: 10px; }
.story-log { border-left: 2px solid var(--line); padding-left: 16px; display: grid; gap: 10px; }
.story-log dt {
  font-family: var(--font-mono); font-size: 0.7rem;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--accent);
}
.story-log dd { font-size: 0.9rem; color: var(--text-dim); }

/* ---------- skills ---------- */

.skills { display: grid; gap: 14px; }
.skills > div { display: grid; grid-template-columns: 180px 1fr; gap: 16px; }
.skills dt { font-size: 0.9rem; font-weight: 600; }
.skills dd { font-size: 0.9rem; color: var(--text-dim); }

.pub {
  margin-top: 20px; padding: 10px 14px;
  background: var(--code-bg); border-radius: 6px;
  font-size: 0.88rem; color: var(--text-dim);
}

/* ---------- contact / footer ---------- */

#contact p { color: var(--text-dim); font-size: 0.95rem; }

.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 48px; padding: 18px 0 36px;
  font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-faint);
}

/* ---------- responsive ---------- */

@media (max-width: 640px) {
  .intro { padding-top: 40px; }
  .highlights { grid-template-columns: 1fr; }
  .entry { grid-template-columns: 1fr; gap: 4px; margin-bottom: 24px; }
  .entry-meta { flex-direction: row; gap: 12px; align-items: baseline; }
  .skills > div { grid-template-columns: 1fr; gap: 2px; }
}

/* ---------- print ---------- */

@media print {
  :root {
    --bg: #ffffff; --text: #111; --text-dim: #333; --text-faint: #666;
    --line: #ccc; --accent: #7a4a10; --code-bg: #f2f2f2;
  }
  body { max-width: none; font-size: 11pt; }
  .site-header nav, .skip-link { display: none; }
  .section, .intro { padding-top: 18px; }
  .entry, .case, .story { break-inside: avoid; }
  a { color: inherit; }
}