:root {
  --bg: #f4f6f8;
  --card: #ffffff;
  --text: #1d232a;
  --muted: #5b6775;
  --line: #e5e9ef;
  --link: #0b63ce;
  --ok: #1f7a3f;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans", "Liberation Sans", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.wrap { max-width: 980px; margin: 0 auto; padding: 28px 18px; }

.brand { display: flex; gap: 14px; align-items: center; }
.logo {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: var(--text);
  color: white;
  display: grid;
  place-items: center;
  font-weight: 800;
  letter-spacing: .5px;
}

h1 { margin: 0; font-size: 1.6rem; }
.sub { margin: 4px 0 0; color: var(--muted); }

.nav {
  margin-top: 18px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.nav a {
  text-decoration: none;
  color: var(--link);
  padding: 6px 10px;
  border-radius: 10px;
  border: 1px solid transparent;
}
.nav a:hover { border-color: var(--line); background: #fff; }
.nav a.active { border-color: var(--line); background: #fff; color: var(--text); }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px 18px;
  margin: 14px 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
@media (max-width: 900px) {
  .grid { grid-template-columns: 1fr; }
}

.muted { color: var(--muted); }
.small { font-size: .92rem; }

.btn {
  display: inline-block;
  text-decoration: none;
  background: var(--text);
  color: white;
  padding: 8px 12px;
  border-radius: 12px;
}

.list { padding-left: 18px; margin: 10px 0 0; }
.list li { margin: 6px 0; }

.tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: .82rem;
  border: 1px solid var(--line);
  margin-right: 8px;
}
.tag.ok { color: var(--ok); border-color: rgba(31,122,63,.25); }

.timeline { list-style: none; margin: 10px 0 0; padding: 0; }
.timeline li {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 14px;
  padding: 10px 0;
  border-top: 1px dashed var(--line);
}
.timeline li:first-child { border-top: 0; }
.date { color: var(--muted); font-variant-numeric: tabular-nums; }
.item strong { display: inline-block; margin-bottom: 2px; }

code {
  background: #f0f3f6;
  border: 1px solid var(--line);
  padding: 2px 6px;
  border-radius: 10px;
}

.foot {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  border-top: 1px solid var(--line);
  padding-top: 18px;
}