/* IROA — iroa.dev 共用樣式 */
:root {
  --ink: #222;
  --muted: #666;
  --line: #e3e3e3;
  --accent: #8a6d3b;
  --accent-soft: #f7f3ec;
}
* { box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  max-width: 46rem;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
  line-height: 1.9;
  color: var(--ink);
}
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--line);
  margin-bottom: 2.5rem;
}
.brand {
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: .12em;
  text-decoration: none;
  color: var(--ink);
}
nav a {
  margin-left: 1.25rem;
  text-decoration: none;
  color: var(--muted);
  font-size: .95rem;
}
nav a:hover, nav a.here { color: var(--ink); }
nav a.here { font-weight: 600; }
h1 { font-size: 1.9rem; line-height: 1.4; margin: .5rem 0 1rem; }
h2 { font-size: 1.35rem; margin: 2.75rem 0 1rem; }
h3 { font-size: 1.08rem; margin: 1.75rem 0 .5rem; }
p { margin: .9rem 0; }
a { color: var(--accent); }
.hero { margin: 1rem 0 2rem; }
.tagline { font-size: 1.15rem; color: var(--muted); margin: 0 0 1.25rem; }
.slogan {
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  padding: .9rem 1.25rem;
  margin: 1.5rem 0;
  font-size: 1.08rem;
}
blockquote {
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  padding: .9rem 1.25rem;
  margin: 1.5rem 0;
}
table { width: 100%; border-collapse: collapse; margin: 1.25rem 0; }
th, td { border: 1px solid var(--line); padding: .65rem .85rem; text-align: left; vertical-align: top; }
th { background: var(--accent-soft); white-space: nowrap; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr)); gap: 1rem; margin: 1.5rem 0; }
.card {
  border: 1px solid var(--line);
  border-radius: .5rem;
  padding: 1.1rem 1.25rem;
  background: #fff;
}
.card h3 { margin: 0 0 .35rem; font-size: 1.02rem; }
.card .role-en { color: var(--accent); font-size: .85rem; letter-spacing: .06em; }
.card p { margin: .35rem 0 0; font-size: .93rem; color: var(--muted); }
.card .status { display: inline-block; font-size: .78rem; padding: .12rem .55rem; border-radius: 1rem; background: var(--accent-soft); color: var(--accent); margin-bottom: .35rem; }
.card .status.done { background: #eaf3ea; color: #3c6e44; }
.checklist { background: var(--accent-soft); border-radius: .5rem; padding: 1.1rem 1.4rem; margin: 1.5rem 0; }
.checklist p { margin: .45rem 0; }
.cta-row { display: flex; gap: 1rem; flex-wrap: wrap; margin: 2.25rem 0 1rem; }
.btn {
  display: inline-block;
  padding: .7rem 1.5rem;
  border: 1px solid var(--accent);
  border-radius: .45rem;
  text-decoration: none;
  color: var(--accent);
  font-weight: 600;
}
.btn.primary { background: var(--accent); color: #fff; }
.muted { color: var(--muted); font-size: .92rem; }
.diagram { display: block; margin: 1.75rem auto; max-width: 100%; height: auto; }
footer {
  margin-top: 4rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  font-size: .85rem;
  color: var(--muted);
}
footer a { color: var(--muted); }