:root {
  --activity-bg: var(--bg);
  --activity-panel: var(--surface-strong);
  --activity-ink: var(--text);
  --activity-muted: var(--muted);
  --activity-line: var(--line);
  --activity-active: #1c8c6a;
  --activity-visible: #6aa8e8;
  --activity-prompt: #d45b5b;
  --activity-soft: var(--surface-muted);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--activity-bg);
  color: var(--activity-ink);
  font: 15px/1.45 ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.activity-shell {
  width: min(1180px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 28px 0 40px;
}

.activity-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 20px;
}

.activity-title h1 {
  margin: 0;
  letter-spacing: 0;
}

.activity-title p {
  margin: 3px 0 0;
  color: var(--activity-muted);
}

.activity-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}

.activity-range-controls {
  display: flex;
  gap: 6px;
  padding: 4px;
  border: 1px solid var(--activity-line);
  border-radius: 999px;
  background: var(--activity-panel);
}

.activity-range-btn,
.activity-refresh,
.activity-chat-link {
  min-height: 38px;
  border: 1px solid var(--activity-line);
  border-radius: 999px;
  background: var(--activity-panel);
  color: var(--activity-ink);
  padding: 0 14px;
  font: inherit;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
}

.activity-range-btn {
  border-color: transparent;
  background: transparent;
}

.activity-range-btn.active {
  background: var(--activity-ink);
  color: #fff;
}

.activity-status {
  min-width: 74px;
  color: var(--activity-muted);
  font-size: 13px;
  text-align: right;
}

.activity-status[data-state="error"] {
  color: #a63d45;
}

.activity-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 12px;
}

.activity-metric,
.activity-card {
  border: 1px solid var(--activity-line);
  border-radius: 8px;
  background: var(--activity-panel);
}

.activity-metric {
  padding: 16px;
}

.activity-metric-label,
.activity-card-title,
.activity-footnote strong {
  color: var(--activity-muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.activity-metric-value {
  margin-top: 8px;
  font-size: 30px;
  font-weight: 800;
  letter-spacing: 0;
}

.activity-metric-note {
  margin-top: 2px;
  color: var(--activity-muted);
  font-size: 13px;
}

.activity-card {
  padding: 16px;
  margin-top: 10px;
}

.activity-card-title {
  margin-bottom: 12px;
}

.activity-timeline {
  display: grid;
  grid-template-columns: repeat(96, minmax(2px, 1fr));
  gap: 2px;
  align-items: end;
  min-height: 88px;
  padding: 12px 0 4px;
  border-top: 1px solid var(--activity-line);
  border-bottom: 1px solid var(--activity-line);
}

.activity-bucket {
  position: relative;
  min-height: 72px;
  border-radius: 3px;
  background:
    linear-gradient(to top, var(--activity-active) 0 var(--active), transparent var(--active) 100%),
    linear-gradient(to top, color-mix(in srgb, var(--activity-visible), white 20%) 0 var(--visible), var(--activity-soft) var(--visible) 100%);
  outline: 1px solid rgba(0, 0, 0, 0.025);
}

.activity-bucket[data-prompt="true"]::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -7px;
  width: 5px;
  height: 5px;
  transform: translateX(-50%);
  border-radius: 50%;
  background: var(--activity-prompt);
}

.activity-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.activity-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
  padding: 12px 0;
  border-top: 1px solid var(--activity-line);
}

.activity-row:first-child {
  border-top: 0;
  padding-top: 0;
}

.activity-row-main {
  min-width: 0;
}

.activity-row-main strong,
.activity-row-main span {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.activity-row-main span,
.activity-row-meta,
.activity-empty,
.activity-footnote,
.activity-event-count {
  color: var(--activity-muted);
  font-size: 13px;
}

.activity-row-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px;
  max-width: 360px;
}

.activity-row-meta span {
  border: 1px solid var(--activity-line);
  border-radius: 999px;
  padding: 3px 8px;
  background: #fbfaf7;
  white-space: nowrap;
}

.activity-footnote {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 14px;
}

.activity-footnote p {
  max-width: 780px;
  margin: 0;
}

@media (max-width: 760px) {
  .activity-shell {
    width: min(100vw - 20px, 760px);
    padding-top: 18px;
  }

  .activity-header,
  .activity-footnote {
    display: block;
  }

  .activity-actions {
    justify-content: flex-start;
    margin-top: 14px;
  }

  .activity-metrics,
  .activity-grid {
    grid-template-columns: 1fr;
  }

  .activity-row {
    grid-template-columns: 1fr;
  }

  .activity-row-meta {
    justify-content: flex-start;
    max-width: none;
  }
}