:root{
  --bg1:#fdfcfb;
  --bg2:#f8fafc;
  --bg3:#eef2ff;
  --text:#0f172a;
  --muted:#6b7280;
  --link:#2f9fb8;
  --border:#e2e8f0;
  --card:#ffffff;
  --shadow:0 10px 26px rgba(15, 23, 42, 0.06);
}

*{ box-sizing:border-box; }

body{
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top left, var(--bg1) 0, var(--bg2) 40%, var(--bg3) 100%);
  color: var(--text);
  line-height: 1.6;
  margin: 0;
}

.content{
  max-width: 900px;
  margin: 0 auto;
  padding: 32px 24px 40px;
}

a{
  color: var(--link);
  text-decoration: none;
}
a:hover{ text-decoration: underline; }

h1{
  font-size: 1.9rem;
  margin: 0 0 8px 0;
}
h2{
  font-size: 1.3rem;
  margin: 20px 0 6px 0;
}

.small{
  font-size: 0.85rem;
  color: var(--muted);
}

.card{
  background: var(--card);
  border-radius: 20px;
  padding: 18px 20px;
  border: 1px solid var(--border);
  margin-top: 12px;
  box-shadow: var(--shadow);
}

ul{ padding-left: 18px; }

.topbar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-bottom: 12px;
}

.backlink{
  display:inline-block;
  margin-bottom: 10px;
}

.page-title{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin-bottom: 8px;
}

.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size: 0.9rem;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.7);
}

.site-footer{
  margin-top: 26px;
  padding-top: 18px;
  border-top: 1px solid rgba(15, 23, 42, 0.10);
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  align-items:center;
  justify-content:space-between;
}

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

.footer-meta{
  color: rgba(15, 23, 42, 0.60);
  font-size: 14px;
}