:root {
  --bg-primary: #0a0a0f;
  --bg-card: rgba(255,255,255,0.03);
  --border-card: rgba(255,255,255,0.08);
  --text-primary: #e4e4e7;
  --text-secondary: #71717a;
  --text-accent: #a78bfa;
  --text-success: #4ade80;
  --text-warning: #fbbf24;
  --text-danger: #f87171;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: system-ui, -apple-system, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  min-height: 100vh;
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-card);
  background: rgba(255,255,255,0.02);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header h1 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-accent);
  letter-spacing: -0.3px;
}

.header-meta {
  font-family: monospace;
  font-size: 12px;
  color: var(--text-secondary);
}

.header-meta span { color: var(--text-success); }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(480px, 1fr));
  gap: 16px;
  padding: 20px 24px;
  max-width: 1600px;
  margin: 0 auto;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 12px;
  padding: 20px;
  backdrop-filter: blur(12px);
  position: relative;
  transition: transform 0.15s ease, border-color 0.15s, box-shadow 0.15s;
}

.card:hover {
  transform: translateY(-1px);
  border-color: rgba(255,255,255,0.13);
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.card.wide { grid-column: span 2; }

.card-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-secondary);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-title .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--text-accent);
}

/* Cost cards */
.cost-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}

@media (max-width: 480px) {
  .cost-card {
    flex: 1 1 calc(50% - 6px);
    min-width: 0;
  }
  .cost-value {
    font-size: 16px;
  }
}

.cost-card {
  flex: 1 1 140px;
  min-width: 0;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-card);
  border-radius: 8px;
  padding: 14px;
}

.cost-label {
  font-size: 11px;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.cost-value {
  font-family: monospace;
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
}

.cost-sub {
  font-family: monospace;
  font-size: 11px;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* Model breakdown */
.model-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.model-row:last-child { border-bottom: none; }

.model-name { color: var(--text-secondary); font-size: 12px; }
.model-cost { font-family: monospace; color: var(--text-primary); }

/* SVG sparkline */
.sparkline-container {
  margin-top: 12px;
  height: 48px;
}

/* Token chart */
.token-chart { margin-top: 8px; }
.cache-hit-rate {
  font-family: monospace;
  font-size: 13px;
  color: var(--text-success);
  margin-bottom: 10px;
}

/* Sessions table scroll */
#sessions-table-wrap {
  max-height: 280px;
  overflow-y: auto;
}
#sessions-table thead th {
  position: sticky;
  top: 0;
  background: var(--bg-primary);
  z-index: 1;
}

/* Table */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

.data-table th {
  text-align: left;
  padding: 6px 8px;
  color: var(--text-secondary);
  font-weight: 500;
  border-bottom: 1px solid var(--border-card);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.data-table td {
  padding: 7px 8px;
  border-bottom: 1px solid rgba(255,255,255,0.03);
  font-family: monospace;
  vertical-align: middle;
}

.data-table tr:last-child td { border-bottom: none; }

.data-table tr.clickable { cursor: pointer; }
.data-table tr.clickable:hover td { background: rgba(255,255,255,0.03); }

/* Badges */
.badge {
  display: inline-block;
  padding: 2px 7px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
}

.badge-danger { background: rgba(248,113,113,0.15); color: var(--text-danger); }
.badge-success { background: rgba(74,222,128,0.12); color: var(--text-success); }
.badge-warning { background: rgba(251,191,36,0.12); color: var(--text-warning); }
.badge-accent { background: rgba(167,139,250,0.12); color: var(--text-accent); }
.badge-muted { background: rgba(255,255,255,0.06); color: var(--text-secondary); }

/* Progress bar */
.progress-wrap {
  margin: 12px 0;
}

.progress-label {
  display: flex;
  justify-content: space-between;
  margin-bottom: 6px;
  font-family: monospace;
  font-size: 13px;
}

.progress-bar {
  height: 10px;
  border-radius: 5px;
  background: rgba(255,255,255,0.06);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: 5px;
  transition: width 0.4s ease;
}

.progress-fill.green { background: var(--text-success); }
.progress-fill.yellow { background: var(--text-warning); }
.progress-fill.red { background: var(--text-danger); }

.context-info {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 8px;
}

.no-session {
  color: var(--text-secondary);
  font-size: 13px;
  padding: 20px 0;
  text-align: center;
}

/* Tool bars */
.tool-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
  font-size: 12px;
}

.tool-name {
  width: 120px;
  flex-shrink: 0;
  font-family: monospace;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tool-count {
  font-family: monospace;
  font-size: 11px;
  color: var(--text-secondary);
  width: 40px;
  text-align: right;
}

/* Heartbeat */
.hb-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  font-size: 12px;
}

.hb-row:last-child { border-bottom: none; }

.hb-ts { font-family: monospace; color: var(--text-secondary); }
.hb-interval { font-family: monospace; }
.hb-warn { color: var(--text-danger); }

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 14px;
}

.status-healthy {
  background: rgba(74,222,128,0.12);
  color: var(--text-success);
  border: 1px solid rgba(74,222,128,0.2);
}

.status-stale {
  background: rgba(248,113,113,0.12);
  color: var(--text-danger);
  border: 1px solid rgba(248,113,113,0.2);
}

.status-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
}

.status-healthy .status-dot { background: var(--text-success); }
.status-stale .status-dot { background: var(--text-danger); }

/* Config audit */
.config-row {
  padding: 7px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  font-size: 12px;
}

.config-row:last-child { border-bottom: none; }
.config-row.sensitive {
  background: rgba(248, 113, 113, 0.08);
  border-left: 2px solid #f87171;
  border-radius: 4px;
  padding: 7px 6px;
}

.config-ts { font-family: monospace; color: var(--text-secondary); font-size: 11px; }
.config-argv { font-family: monospace; color: var(--text-primary); margin-top: 2px; }

/* Gateway events */
.gw-summary {
  display: flex;
  gap: 16px;
  margin-bottom: 14px;
}

.gw-stat {
  background: rgba(255,255,255,0.04);
  border-radius: 6px;
  padding: 8px 12px;
  font-family: monospace;
}

.gw-stat-label { font-size: 11px; color: var(--text-secondary); }
.gw-stat-val { font-size: 16px; color: var(--text-primary); }

.gw-event {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 6px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  font-size: 12px;
}

.gw-event:last-child { border-bottom: none; }
.gw-event-ts { font-family: monospace; color: var(--text-secondary); font-size: 11px; flex-shrink: 0; }
.gw-event-detail { font-family: monospace; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.ev-restart { color: var(--text-warning); }
.ev-error { color: var(--text-danger); }
.ev-reconnect { color: var(--text-accent); }
.ev-shutdown { color: var(--text-secondary); }
.ev-heartbeat { color: var(--text-success); }

/* Gateway cycle collapse */
.gw-cycle { cursor: pointer; }
.gw-cycle:hover { background: rgba(255,255,255,0.03); }
.gw-sub { opacity: 0.8; font-size: 12px; }

/* SVG chart */
svg.chart { display: block; overflow: visible; }

/* Loading */
.loading { color: var(--text-secondary); font-size: 12px; }

/* Last updated */
.last-updated {
  font-family: monospace;
  font-size: 11px;
  color: var(--text-secondary);
  text-align: right;
  padding: 8px 24px 16px;
  max-width: 1600px;
  margin: 0 auto;
}

/* ── Mobile layout ─────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  /* Hide top nav — replaced by bottom tab bar */
  nav#main-nav {
    display: none !important;
  }

  nav {
    height: auto;
    flex-wrap: wrap;
    padding: 6px 8px;
    gap: 2px;
  }
  nav a {
    font-size: 11px;
    padding: 4px 8px;
  }

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

  .card.wide {
    grid-column: span 1;
  }

  .card {
    padding: 14px;
  }

  .header {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 12px 14px;
  }

  .header h1 {
    font-size: 16px;
  }

  .cost-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    width: 100%;
    box-sizing: border-box;
  }

  .cost-card {
    flex: unset;
    min-width: 0;
    box-sizing: border-box;
    overflow: hidden;
    padding: 10px;
  }

  .cost-value {
    font-size: 16px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  table {
    font-size: 12px;
  }

  th, td {
    padding: 6px 8px;
  }
}

@media (max-width: 480px) {
  .cost-card {
    flex: 1 1 100%;
  }
}

/* ── Skeleton loaders ─────────────────────────────────────────────────────── */
@keyframes shimmer {
  0%   { background-position: -600px 0; }
  100% { background-position: 600px 0; }
}
.skeleton {
  background: linear-gradient(90deg,
    rgba(255,255,255,0.04) 25%,
    rgba(255,255,255,0.09) 50%,
    rgba(255,255,255,0.04) 75%);
  background-size: 1200px 100%;
  animation: shimmer 1.4s ease-in-out infinite;
  border-radius: 4px;
  color: transparent !important;
  user-select: none;
}
.skeleton * { visibility: hidden; }

/* ── Data freshness indicators ──────────────────────────────────────────── */
.freshness-dot {
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  margin-left: 5px;
  flex-shrink: 0;
  vertical-align: middle;
}
.freshness-fresh { background: var(--text-success); }
.freshness-warn  { background: var(--text-warning); animation: pulse-warn 2s ease-in-out infinite; }
.freshness-stale { background: var(--text-danger); }

@keyframes pulse-warn {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

/* ── Durawood in-page section tabs ──────────────────────────────────────── */
.dw-tabs {
  display: flex;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  padding: 0 24px;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  background: rgba(0,0,0,0.15);
}
.dw-tabs::-webkit-scrollbar { display: none; }

.dw-tab {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 10px 14px;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  transition: color 0.15s, border-color 0.15s;
  position: relative;
  top: 1px;
}
.dw-tab:hover { color: var(--text-primary); }
.dw-tab.active { color: #f97316; border-bottom-color: #f97316; font-weight: 600; }

@media (max-width: 768px) {
  .dw-tabs {
    padding: 8px 10px;
    gap: 6px;
    border-bottom: none;
    border-top: 1px solid rgba(255,255,255,0.06);
    background: #0f0f13;
  }
  .dw-tab {
    padding: 5px 12px;
    border-radius: 20px;
    border-bottom: none;
    background: rgba(255,255,255,0.04);
    border: 1px solid transparent;
    top: 0;
    font-size: 11px;
  }
  .dw-tab.active {
    background: rgba(249,115,22,0.1);
    border-color: rgba(249,115,22,0.3);
    color: #f97316;
  }
}

/* ── Hero card sparkline ────────────────────────────────────────────────── */
.hero-sparkline {
  display: block;
  margin-top: 6px;
  opacity: 0.65;
}

/* ── Sidebar collapse ────────────────────────────────────────────────────── */
.sidebar-nav { transition: width 0.2s ease, min-width 0.2s ease; }
.sidebar-content { transition: margin-left 0.2s ease; }

.sidebar-collapse-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: #52525b;
  font-size: 13px;
  padding: 3px 5px;
  border-radius: 4px;
  line-height: 1;
  flex-shrink: 0;
}
.sidebar-collapse-btn:hover { color: #e4e4e7; background: rgba(255,255,255,0.06); }

body.sidebar-collapsed .sidebar-nav { width: 52px; min-width: 52px; overflow: hidden; }
body.sidebar-collapsed .sidebar-content { margin-left: 52px; }
body.sidebar-collapsed .sidebar-brand { opacity: 0; pointer-events: none; }
body.sidebar-collapsed .sidebar-section-label { display: none; }
body.sidebar-collapsed .sidebar-nav-item {
  padding: 9px 0;
  display: flex;
  justify-content: center;
  font-size: 0;
  border-left: 2px solid transparent;
  overflow: hidden;
}
body.sidebar-collapsed .sidebar-nav-item::before {
  content: '·';
  font-size: 20px;
  line-height: 1;
  color: #52525b;
}
body.sidebar-collapsed .sidebar-nav-item.active::before { color: #a78bfa; }
body.sidebar-collapsed .sidebar-nav-item.active { background: rgba(167,139,250,0.08); }
body.sidebar-collapsed .sidebar-footer-user { display: none; }
body.sidebar-collapsed .sidebar-footer { padding: 8px; justify-content: center; }
body.sidebar-collapsed .sidebar-footer-logout { font-size: 0; padding: 6px; }
body.sidebar-collapsed .sidebar-footer-logout::before { content: '⏏'; font-size: 13px; }