:root {
  --bg:        #0d1117;
  --bg-elev:   #161b22;
  --bg-elev2:  #1c2330;
  --border:    #30363d;
  --border-soft:#262c36;
  --text:      #e6edf3;
  --text-dim:  #8b949e;
  --text-mute: #6e7681;
  --accent:    #2f81f7;
  --accent-2:  #a371f7;
  --ok:        #3fb950;
  --warn:      #d29922;
  --danger:    #f85149;
  --chip-bg:   #21262d;
  --radius:    10px;
  --shadow:    0 1px 0 rgba(0,0,0,.4), 0 8px 24px rgba(0,0,0,.25);
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 14px;
  line-height: 1.5;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- Top bar ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 20px;
  background: linear-gradient(180deg, #161b22, #0f141b);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
  flex-wrap: wrap;
}
.topbar__title { display: flex; align-items: center; gap: 10px; }
.topbar__title h1 { font-size: 16px; font-weight: 600; margin: 0; letter-spacing: .2px; }
.logo { color: var(--accent-2); font-size: 18px; }
.topbar__actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.freshness { color: var(--text-dim); font-size: 12px; margin-right: 4px; font-variant-numeric: tabular-nums; }
.freshness.stale { color: var(--warn); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-elev2);
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background .15s, border-color .15s, transform .05s;
  white-space: nowrap;
}
.btn:hover { text-decoration: none; border-color: #4b5563; }
.btn:active { transform: translateY(1px); }
.btn--ghost { background: transparent; }
.btn--primary { background: #1f6feb22; border-color: #1f6feb66; color: #79c0ff; }
.btn--primary:hover { background: #1f6feb33; }
.btn--accent { background: #a371f722; border-color: #a371f766; color: #d2a8ff; }
.btn--accent:hover { background: #a371f733; }
.btn--sm { padding: 3px 8px; font-size: 12px; border-radius: 6px; }
.btn--danger { background: #f8514922; border-color: #f8514966; color: #ff9a92; }
.btn--danger:hover { background: #f8514933; }

/* action clusters in the Release Sets table */
.actions { display: flex; flex-wrap: wrap; gap: 4px; align-items: center; }
.actions__sep { width: 1px; align-self: stretch; background: var(--border); margin: 0 4px; }
.rs-legend {
  margin: 0 2px 12px;
  padding: 8px 12px;
  background: var(--bg-elev);
  border: 1px solid var(--border-soft);
  border-radius: 8px;
  color: var(--text-dim);
  font-size: 12px;
}
.danger-text { color: #ff9a92; }

/* ---------- Layout ---------- */
.container { max-width: 1240px; margin: 0 auto; padding: 20px; }

/* ---------- Banner ---------- */
.banner {
  padding: 10px 14px;
  border-radius: var(--radius);
  margin-bottom: 16px;
  border: 1px solid;
  font-size: 13px;
}
.banner--error  { background: #f8514915; border-color: #f8514955; color: #ffa198; }
.banner--warn   { background: #d2992215; border-color: #d2992255; color: #e3b341; }
.banner--info   { background: #2f81f715; border-color: #2f81f755; color: #79c0ff; }

/* ---------- Env cards ---------- */
.env-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
  margin-bottom: 22px;
}
.env-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  box-shadow: var(--shadow);
}
.env-card__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.env-card__name { font-weight: 600; font-size: 14px; }
.env-card__acct { color: var(--text-mute); font-size: 11px; font-family: var(--mono); }
.env-card__row { display: flex; justify-content: space-between; gap: 8px; font-size: 12px; padding: 2px 0; }
.env-card__row .k { color: var(--text-dim); }
.env-card__row .v { font-family: var(--mono); color: var(--text); text-align: right; overflow-wrap: anywhere; }

/* ---------- Chips ---------- */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 1px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  background: var(--chip-bg);
  border: 1px solid var(--border);
  color: var(--text-dim);
}
.chip--ok    { background: #3fb95018; border-color: #3fb95055; color: #56d364; }
.chip--warn  { background: #d2992218; border-color: #d2992255; color: #e3b341; }
.chip--danger{ background: #f8514918; border-color: #f8514955; color: #ff7b72; }
.chip--muted { color: var(--text-mute); }

/* ---------- Tabs ---------- */
.tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 18px;
  flex-wrap: wrap;
}
.tab {
  padding: 8px 14px;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-dim);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border-radius: 6px 6px 0 0;
}
.tab:hover { color: var(--text); background: #ffffff08; }
.tab.is-active { color: var(--text); border-bottom-color: var(--accent); }
.tab .tab__count { color: var(--text-mute); font-size: 11px; margin-left: 4px; }

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
thead th {
  text-align: left;
  padding: 10px 12px;
  background: var(--bg-elev2);
  color: var(--text-dim);
  font-weight: 600;
  font-size: 12px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
  position: sticky;
  top: 0;
}
tbody td { padding: 10px 12px; border-bottom: 1px solid var(--border-soft); vertical-align: top; }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: #ffffff05; }
.app-name { font-weight: 600; }
.cell-mono { font-family: var(--mono); font-size: 12px; }
.cell-sub { color: var(--text-mute); font-size: 11px; }

/* matrix cell states */
.cell-build { display: flex; flex-direction: column; gap: 2px; }
.cell--baseline { }
.cell--drift    { background: #d2992212; }
.cell--drift .cell-mono { color: #e3b341; }
.cell--missing  { color: var(--text-mute); }
.dot { display:inline-block; width:8px; height:8px; border-radius:50%; margin-right:6px; }
.dot--ok { background: var(--ok); }
.dot--warn { background: var(--warn); }
.dot--missing { background: var(--text-mute); }

.row-status { white-space: nowrap; }

.empty {
  padding: 40px 20px;
  text-align: center;
  color: var(--text-mute);
}

/* ---------- Footer ---------- */
.footer {
  max-width: 1240px;
  margin: 24px auto;
  padding: 0 20px 24px;
  color: var(--text-mute);
  font-size: 12px;
  display: flex;
  gap: 8px;
  align-items: center;
}
.footer__sep { color: var(--border); }

/* skeleton */
.skeleton { color: var(--text-mute); padding: 30px; text-align: center; }

/* section title */
.section-title {
  font-size: 13px; font-weight: 600; text-transform: uppercase;
  letter-spacing: .04em; color: var(--text-dim);
  margin: 0 0 10px; }

/* metrics strip (leaders) */
.metrics {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px; margin-bottom: 16px; }
.metric {
  background: var(--bg-elev); border: 1px solid var(--border-soft);
  border-radius: var(--radius); padding: 14px 16px; box-shadow: var(--shadow); }
.metric__value { font-size: 26px; font-weight: 700; color: var(--text); line-height: 1.1; }
.metric__label { font-size: 12px; color: var(--text-dim); margin-top: 4px; }
.metric__sub { margin-top: 2px; }
.metric--warn .metric__value { color: var(--warn); }
.metric--ok   .metric__value { color: var(--ok); }

/* production release banner (NOC / leaders) */
.prod-release { margin-bottom: 16px; }
.prod-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px; }
.prod-card {
  background: var(--bg-elev); border: 1px solid var(--border-soft);
  border-left: 3px solid var(--ok); border-radius: var(--radius);
  padding: 12px 14px; }
.prod-card--drift { border-left-color: var(--warn); }
.prod-card__head { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.prod-card__region { font-weight: 600; color: var(--text); }
.prod-card__set { margin: 8px 0 4px; font-size: 15px; }
.prod-card__meta { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; }
.prod-card__run { flex: none; }
.run-link { white-space: nowrap; }

/* activity feed danger row */
.row--danger td { background: #f8514910; }