:root {
  --bg: #0d1117;
  --surface: #121821;
  --surface-2: #171f2a;
  --line: rgba(179, 199, 219, 0.14);
  --line-strong: rgba(179, 199, 219, 0.24);
  --text: #e5edf7;
  --muted: #8b98aa;
  --accent: #1890ff;
  --accent-soft: rgba(24, 144, 255, 0.14);
  --green: #52c41a;
  --red: #ff4d4f;
  --yellow: #f5b942;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-width: 1180px;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.45 Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button, input, select {
  font: inherit;
}

button {
  height: 34px;
  padding: 0 14px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: var(--surface-2);
  color: var(--text);
  cursor: pointer;
}

button:hover { border-color: rgba(24, 144, 255, 0.6); }
button.danger { border-color: rgba(255, 77, 79, 0.45); color: #ff9a9b; }

input, select {
  width: 100%;
  height: 34px;
  padding: 0 10px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: #0f151d;
  color: var(--text);
  outline: none;
}

input:focus, select:focus { border-color: var(--accent); }

h1, h2, h3, p { margin: 0; }

.login-screen {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 24px;
}

.login-panel {
  display: grid;
  width: min(380px, 100%);
  gap: 14px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.app-shell {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 22px;
  padding: 18px;
  border-right: 1px solid var(--line);
  background: #0b1016;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid rgba(24, 144, 255, 0.42);
  border-radius: 8px;
  background: var(--accent-soft);
  color: #8ccaff;
  font-weight: 800;
  font-size: 20px;
}

.brand h1 { font-size: 18px; }
.brand p, .topbar p, .panel-heading p { color: var(--muted); }

.nav { display: grid; gap: 6px; }
.nav-item { justify-content: flex-start; width: 100%; height: 38px; text-align: left; background: transparent; }
.nav-item.active { border-color: rgba(24, 144, 255, 0.58); background: var(--accent-soft); color: #cde8ff; }

.side-status {
  display: grid;
  gap: 10px;
  margin-top: auto;
}

.side-status a {
  color: var(--muted);
  text-align: center;
  text-decoration: none;
}

label span {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.status {
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--muted);
}

.status.ok { border-color: rgba(82, 196, 26, 0.4); color: #9de27b; }
.status.warn { border-color: rgba(245, 185, 66, 0.4); color: #ffd986; }
.status.danger { border-color: rgba(255, 77, 79, 0.36); color: #ff9a9b; }

.workspace {
  min-width: 0;
  padding: 22px 26px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
}

.topbar-actions, .button-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.view { display: none; }
.view.active { display: block; }

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.group-stats-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.group-card,
.settings-group-card {
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.group-card h3,
.settings-group-card h3 {
  font-size: 14px;
}

.group-card span,
.settings-group-card p {
  color: var(--muted);
  font-size: 12px;
}

.group-card dl {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 12px 0 0;
}

.group-card dt {
  color: var(--muted);
  font-size: 11px;
  text-transform: uppercase;
}

.group-card dd {
  margin: 2px 0 0;
  font-size: 18px;
  font-weight: 800;
}

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

.metric { padding: 16px; }
.metric span { display: block; margin-bottom: 6px; color: var(--muted); font-size: 12px; text-transform: uppercase; }
.metric strong { font-size: 24px; }

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.panel { min-width: 0; overflow: hidden; }
.panel-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
}

.pill {
  padding: 3px 8px;
  border: 1px solid rgba(24, 144, 255, 0.34);
  border-radius: 999px;
  background: var(--accent-soft);
  color: #9ed3ff;
  font-size: 12px;
  white-space: nowrap;
}

.pill.neutral { border-color: var(--line-strong); background: #101722; color: var(--muted); }

pre {
  min-height: 220px;
  max-height: 460px;
  margin: 0;
  padding: 14px 16px;
  overflow: auto;
  color: #cbd7e8;
  background: #0f151d;
  white-space: pre-wrap;
}

.event-list {
  display: grid;
  max-height: 460px;
  overflow: auto;
}

.event {
  display: grid;
  gap: 2px;
  padding: 10px 14px;
  border-bottom: 1px solid rgba(179, 199, 219, 0.09);
}

.event span { color: var(--muted); font-size: 12px; }
.event p { color: #cbd7e8; }
.empty { padding: 16px; color: var(--muted); }

.chart-panel canvas {
  display: block;
  width: 100%;
  height: 520px;
  background: #0f151d;
}

.chart-info {
  padding: 10px 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.table-wrap {
  overflow: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: #0f151d;
}

th, td {
  padding: 10px 12px;
  border-bottom: 1px solid rgba(179, 199, 219, 0.09);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
}

td { color: #d9e3f0; }
.pos { color: #9de27b; }
.neg { color: #ff9a9b; }

.settings-panel { max-width: 980px; }
.settings-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  padding: 16px;
}

.settings-panel .button-row {
  padding: 0 16px 16px;
}

.groups-output {
  display: grid;
  gap: 12px;
  padding: 0 16px 16px;
}

.settings-group-card pre {
  min-height: 0;
  max-height: 130px;
  margin-top: 10px;
}

#settingsOutput {
  min-height: 120px;
}

@media (max-width: 900px) {
  body { min-width: 0; }
  .app-shell, .split, .metrics-grid, .group-stats-grid, .settings-grid { grid-template-columns: 1fr; }
  .sidebar { border-right: 0; border-bottom: 1px solid var(--line); }
}