* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, "Hiragino Sans", "Yu Gothic", sans-serif; color: #222; background: #fafafa; }
header, main, footer, #banner { max-width: 960px; margin: 0 auto; padding: 8px 12px; }
header { display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px 20px; border-bottom: 1px solid #ddd; }
header h1 { font-size: 1.3em; margin: 0; }
.time-wrap { margin-left: auto; color: #555; font-size: 0.9em; }
#mode { font-weight: bold; }
#mode.live { color: #0a6b2d; }
#banner { border-radius: 4px; margin-top: 8px; margin-bottom: 4px; }
#banner.banner-warn { background: #fff3cd; border: 1px solid #e0b100; color: #5c4400; }
#banner.banner-info { background: #e9ecef; border: 1px solid #b8bec4; color: #333; }
h2 { font-size: 1em; margin: 12px 0 6px; color: #444; }
#pinned { display: flex; flex-wrap: wrap; gap: 8px; }
.card { flex: 1 1 280px; border: 1px solid #ccc; border-radius: 6px; padding: 8px 10px; background: #fff; }
.card-head { font-weight: bold; }
.meta { color: #666; font-size: 0.85em; }
.empty { color: #888; }
#timeline { list-style: none; margin: 0; padding: 0; }
#timeline li { border-bottom: 1px solid #ddd; padding: 8px 2px; }
.row-head { font-size: 0.9em; color: #444; }
.row-head .id { font-weight: bold; }
.body { white-space: pre-wrap; overflow-wrap: anywhere; margin-top: 4px; }
footer { color: #555; font-size: 0.85em; border-top: 1px solid #ddd; margin-top: 16px; }
.stale { color: #a40000; font-weight: bold; }
@media (max-width: 599px) {
  header { flex-direction: row; }
  .time-wrap { margin-left: 0; flex-basis: 100%; }
  #pinned { flex-direction: column; }
  .row-head { overflow-wrap: anywhere; }
}