:root {
  --bg: #f3f6fb;
  --fg: #1f2937;
  --muted: #667085;
  --line: #d7deea;
  --card: #ffffff;
  --accent: #1e5eff;
  --accent-soft: #e8f0ff;
  --ok-bg: #e8f7ee;
  --ok-fg: #17603a;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--fg);
  background: var(--bg);
}

.wrap {
  max-width: 920px;
  margin: 0 auto;
  padding: 0 18px;
}

.site-header {
  background: #fff;
  border-bottom: 1px solid var(--line);
}

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-top: 18px;
  padding-bottom: 18px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.logo {
  width: 44px;
  height: 44px;
  flex: 0 0 44px;
}

.brand-title {
  font-size: 1.15rem;
  font-weight: 700;
}

.brand-subtitle {
  font-size: 0.95rem;
  color: var(--muted);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.nav a {
  color: var(--accent);
  text-decoration: none;
}

.nav a:hover {
  text-decoration: underline;
}

main.wrap {
  padding-top: 26px;
  padding-bottom: 26px;
}

.hero {
  margin-bottom: 18px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
  margin-bottom: 18px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px;
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.04);
}

h1, h2 {
  margin-top: 0;
  line-height: 1.25;
}

h1 {
  font-size: 2rem;
  margin-bottom: 12px;
}

h2 {
  font-size: 1.25rem;
  margin-bottom: 10px;
}

p {
  margin: 0 0 10px 0;
}

.plain-list {
  margin: 0;
  padding-left: 18px;
}

.muted {
  color: var(--muted);
}

.status-line {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.badge {
  display: inline-block;
  padding: 5px 10px;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 600;
}

.badge.ok {
  background: var(--ok-bg);
  color: var(--ok-fg);
}

code {
  background: #eef2f7;
  border: 1px solid #dde4ee;
  border-radius: 6px;
  padding: 1px 6px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.95em;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #fff;
}

.footer-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-top: 18px;
  padding-bottom: 18px;
  color: var(--muted);
  font-size: 0.95rem;
}

@media (max-width: 700px) {
  .header-row,
  .footer-row {
    flex-direction: column;
    align-items: flex-start;
  }

  h1 {
    font-size: 1.7rem;
  }
}