body { margin: 0; font: 15px/1.4 system-ui, sans-serif; color: #1d1d1f; background: #fafafa; }
header, main, footer { padding: 12px 24px; }
h1 { margin: 0; font-size: 22px; }
.sub { margin: 2px 0 0; color: #666; }
.updated { margin: 2px 0 0; color: #8a8a93; font-size: 13px; font-variant-numeric: tabular-nums; }
.list { list-style: none; margin: 0; padding: 0; max-width: 1080px; }
.row { display: grid; grid-template-columns: 90px 50px 1fr 130px auto; gap: 12px; align-items: center; min-height: 44px; padding: 0 12px; border-bottom: 1px solid #e5e5e5; background: #fff; }
.row .id { font-family: ui-monospace, monospace; }
.row.sev1 .sev { color: #b00020; font-weight: 600; }
.row.sev2 .sev { color: #a15c00; }
.row time { color: #555; font-variant-numeric: tabular-nums; white-space: nowrap; }
footer { color: #777; font-size: 13px; }

.loader { padding: 18px 0; color: #666; }
.empty { padding: 18px 0; color: #666; }

.ack-cell { display: flex; justify-content: flex-end; }
.ack { font: inherit; font-size: 13px; padding: 4px 12px; border: 1px solid #c9c9cf; border-radius: 6px; background: #fff; cursor: pointer; }
.ack:hover { border-color: #8a8a93; }
.ack:disabled { color: #8a8a93; cursor: default; }
.acked { font-size: 13px; font-weight: 600; color: #0a7d33; padding: 4px 10px; border-radius: 6px; background: #e8f6ed; }