:root {
  color-scheme: light;
  --bg: #f7f8fa;
  --panel: #ffffff;
  --ink: #17202a;
  --muted: #667085;
  --line: #d8dee8;
  --accent: #176b87;
  --accent-soft: #e6f4f7;
  --danger: #b42318;
  --warn: #b54708;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.topbar {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  padding: 28px clamp(18px, 4vw, 48px) 20px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1;
  letter-spacing: 0;
}

time {
  color: var(--muted);
  font-size: 14px;
  white-space: nowrap;
}

main {
  width: min(1120px, 100%);
  margin: 0 auto;
  padding: 22px clamp(14px, 4vw, 32px) 44px;
}

.toolbar {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 0 0 18px;
}

.filter {
  min-height: 36px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--ink);
  padding: 0 14px;
  font: inherit;
  font-size: 14px;
  cursor: pointer;
  white-space: nowrap;
}

.filter.is-active {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
}

.digest {
  display: grid;
  gap: 22px;
}

.category {
  display: grid;
  gap: 10px;
}

.category h2 {
  margin: 0;
  font-size: 18px;
}

.items {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 310px), 1fr));
  gap: 12px;
}

.item {
  min-height: 250px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.item h3 {
  margin: 0;
  font-size: 17px;
  line-height: 1.35;
}

.summary,
.reason {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.reason strong {
  color: var(--ink);
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 2px 8px;
  border-radius: 999px;
  background: #eef1f5;
  color: #344054;
  font-size: 12px;
}

.pill.severity-critical,
.pill.severity-high {
  background: #fee4e2;
  color: var(--danger);
}

.pill.severity-medium {
  background: #fef0c7;
  color: var(--warn);
}

.source {
  color: var(--accent);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.source:hover {
  text-decoration: underline;
}

.empty {
  margin: 18px 0;
  color: var(--muted);
}

@media (max-width: 640px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  time {
    white-space: normal;
  }
}