:root {
  --bg: #f5f8ff;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --line: #e5eaf3;
  --accent: #0066ff;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1220;
    --card: #111a2e;
    --text: #e5e7eb;
    --muted: #9ca3af;
    --line: #1f2a44;
    --accent: #5b9dff;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Pretendard", "Apple SD Gothic Neo", "Malgun Gothic", system-ui, sans-serif;
  line-height: 1.7;
  word-break: keep-all;
  overflow-wrap: anywhere;
}
header {
  max-width: 760px;
  margin: 0 auto;
  padding: 28px 16px 8px;
}
.brand { color: var(--accent); font-weight: 800; font-size: 15px; text-decoration: none; }
nav { margin-top: 10px; display: flex; gap: 8px; flex-wrap: wrap; }
nav a {
  font-size: 13px;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text);
  text-decoration: none;
  background: var(--card);
}
nav a[aria-current="page"] { border-color: var(--accent); color: var(--accent); font-weight: 700; }
main {
  max-width: 760px;
  margin: 12px auto 40px;
  padding: 24px 20px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
}
h1 { font-size: 22px; margin: 0 0 4px; }
#meta { color: var(--muted); font-size: 13px; margin-bottom: 18px; }
#body { font-size: 15px; }
#body .heading { font-weight: 700; margin-top: 18px; }
#body .gap { height: 6px; }
#body .error, .loading { color: var(--muted); }
footer { max-width: 760px; margin: 0 auto 32px; padding: 0 16px; color: var(--muted); font-size: 12px; }
@media (max-width: 480px) {
  main { margin: 8px 12px 32px; padding: 20px 16px; border-radius: 12px; }
  header { padding: 20px 16px 4px; }
}