/* ============================================================
   OCF Dashboard — Dark TUI Theme
   ============================================================ */

/* --- Reset & Base --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg:         #0d1117;
  --card:       #161b22;
  --border:     #30363d;
  --border-hl:  #58a6ff;
  --text:       #c9d1d9;
  --text-dim:   #6e7681;
  --text-muted: #484f58;
  --text-bright:#e6edf3;
  --accent:     #58a6ff;
  --green:      #3fb950;
  --yellow:     #d29922;
  --orange:     #db6d28;
  --red:        #f85149;
  --magenta:    #bc8cff;
  --cyan:       #39d353;
  --white:      #f0f6fc;

  --font-mono: "JetBrains Mono", "Fira Code", "SF Mono", "Cascadia Code", "Consolas", monospace;
  --radius: 4px;
  --gap: 12px;
  --transition: 0.3s ease;
}

html {
  font-size: 13px;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-mono);
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* --- Header --- */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--card);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-left {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.header-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.5px;
}

.header-sub {
  font-size: 0.85rem;
  color: var(--text-dim);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

.connection-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--text-dim);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
  display: inline-block;
  transition: background var(--transition);
}

.status-dot.connected {
  background: var(--green);
  box-shadow: 0 0 6px var(--green);
  animation: pulse 2s ease-in-out infinite;
}

.status-dot.error {
  background: var(--red);
  box-shadow: 0 0 6px var(--red);
}

.status-dot.degraded {
  background: var(--yellow);
  box-shadow: 0 0 6px var(--yellow);
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.last-updated {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* --- Dashboard Grid --- */
.dashboard {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap);
  padding: var(--gap);
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

/* --- Panels --- */
.panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition);
}

.panel:hover {
  border-color: #3d444d;
}

.panel-wide {
  grid-column: 1 / -1;
}

.panel-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-bright);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.panel-icon {
  color: var(--accent);
  font-size: 0.7rem;
}

.panel-body {
  padding: 12px;
}

.panel-body-events {
  padding: 0;
  max-height: 280px;
  overflow-y: auto;
}

.panel-body-events::-webkit-scrollbar {
  width: 4px;
}

.panel-body-events::-webkit-scrollbar-track {
  background: var(--card);
}

.panel-body-events::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 2px;
}

.loading {
  color: var(--text-muted);
  text-align: center;
  padding: 24px;
  font-style: italic;
}

/* --- Quota Cards --- */
.quota-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap);
}

.quota-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
}

.quota-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.quota-account {
  font-weight: 700;
  color: var(--accent);
  font-size: 1rem;
}

.quota-plan {
  font-size: 0.75rem;
  color: var(--text-dim);
}

.quota-row {
  margin-bottom: 10px;
}

.quota-row:last-child {
  margin-bottom: 0;
}

.quota-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
}

.quota-label {
  font-size: 0.8rem;
  color: var(--text-dim);
}

.quota-value {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-bright);
  transition: color var(--transition);
}

.quota-reset {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.quota-death {
  font-size: 0.75rem;
  color: var(--red);
  font-weight: 600;
}

.quota-sparkline {
  height: 32px;
  margin-top: 8px;
}

.quota-extra {
  margin-top: 6px;
  padding: 4px 8px;
  background: rgba(248, 81, 73, 0.1);
  border: 1px solid rgba(248, 81, 73, 0.3);
  border-radius: var(--radius);
  font-size: 0.75rem;
  color: var(--red);
}

/* --- Progress Bars --- */
.progress-bar {
  position: relative;
  height: 14px;
  background: #21262d;
  border-radius: 2px;
  overflow: visible;
}

.progress-fill {
  height: 100%;
  border-radius: 2px;
  transition: width var(--transition), background var(--transition);
  min-width: 1px;
}

.progress-fill.green  { background: var(--green); }
.progress-fill.yellow { background: var(--yellow); }
.progress-fill.orange { background: var(--orange); }
.progress-fill.red    { background: var(--red); }
.progress-fill.magenta { background: var(--magenta); }

.progress-death-marker {
  position: absolute;
  top: -2px;
  bottom: -2px;
  width: 2px;
  background: var(--red);
  box-shadow: 0 0 4px var(--red);
  z-index: 2;
}

.progress-death-marker::after {
  content: "\2620";
  position: absolute;
  top: -14px;
  left: -4px;
  font-size: 10px;
  color: var(--red);
}

/* --- Stats Panel --- */
.stats-summary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
  margin-bottom: var(--gap);
}

.stat-box {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px;
  text-align: center;
}

.stat-number {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-bright);
  line-height: 1.2;
  transition: color var(--transition);
}

.stat-number.green { color: var(--green); }
.stat-number.red   { color: var(--red); }

.stat-label {
  font-size: 0.7rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 4px;
}

.stats-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap);
}

.stats-section {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px;
}

.stats-section-title {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 4px;
}

.token-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2px 0;
  font-size: 0.85rem;
}

.token-label {
  color: var(--text-dim);
}

.token-value {
  color: var(--text-bright);
  font-weight: 600;
}

.account-bar {
  display: flex;
  height: 18px;
  border-radius: 2px;
  overflow: hidden;
  margin-top: 6px;
}

.account-bar-seg {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--bg);
  transition: width var(--transition);
}

.account-bar-seg.cc { background: var(--accent); }
.account-bar-seg.ai { background: var(--magenta); }

.stats-chart {
  height: 120px;
  margin-top: var(--gap);
}

.model-table {
  width: 100%;
  font-size: 0.8rem;
  border-collapse: collapse;
}

.model-table th {
  text-align: left;
  color: var(--text-dim);
  font-weight: 500;
  padding: 3px 0;
  border-bottom: 1px solid var(--border);
}

.model-table td {
  padding: 3px 0;
  color: var(--text);
}

.model-table td:last-child {
  text-align: right;
  font-weight: 600;
  color: var(--text-bright);
}

/* --- Nodes Grid --- */
.nodes-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gap);
}

.node-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px;
}

.node-card.offline {
  opacity: 0.5;
}

.node-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.node-name {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-bright);
}

.node-status {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}

.node-status.up {
  background: var(--green);
  box-shadow: 0 0 4px var(--green);
  animation: pulse 2s ease-in-out infinite;
}

.node-status.down {
  background: var(--red);
  box-shadow: 0 0 4px var(--red);
}

.node-status.unknown {
  background: var(--text-muted);
}

.node-meta {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.node-metric {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  padding: 2px 0;
}

.node-metric-label {
  color: var(--text-dim);
}

.node-metric-value {
  color: var(--text);
  font-weight: 600;
}

.node-services {
  margin-top: 8px;
  padding-top: 6px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.node-service {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.7rem;
  color: var(--text-dim);
}

.service-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  display: inline-block;
}

.service-dot.up { background: var(--green); }
.service-dot.down { background: var(--red); }
.service-dot.unknown { background: var(--text-muted); }

.node-latency {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* --- Upstream Panel --- */
.upstream-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.upstream-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 8px;
  border-radius: 2px;
  font-size: 0.85rem;
}

.upstream-row:nth-child(odd) {
  background: rgba(255, 255, 255, 0.02);
}

.upstream-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

.upstream-dot.up { background: var(--green); }
.upstream-dot.down { background: var(--red); }

.upstream-name {
  flex: 1;
  color: var(--text);
}

.upstream-latency {
  color: var(--text-dim);
  font-size: 0.75rem;
}

.upstream-uptime {
  color: var(--text-muted);
  font-size: 0.75rem;
  min-width: 50px;
  text-align: right;
}

/* --- Month Selector --- */
.month-selector {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.month-btn {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 2px 8px;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
}

.month-btn:hover:not(:disabled) {
  background: var(--border);
  border-color: var(--accent);
}

.month-btn:disabled {
  color: var(--text-muted);
  cursor: default;
  opacity: 0.4;
}

.month-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-bright);
  min-width: 70px;
  text-align: center;
}

/* --- Costs Panel --- */
.cost-total {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 12px;
}

.cost-total-label {
  font-size: 0.75rem;
  color: var(--text-dim);
  font-weight: 400;
  margin-left: 8px;
}

.cost-bar {
  display: flex;
  height: 24px;
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 12px;
}

.cost-segment {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--bg);
  transition: width var(--transition);
  min-width: 20px;
}

.cost-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.cost-legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
}

.cost-swatch {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  flex-shrink: 0;
}

.cost-item-label {
  color: var(--text-dim);
}

.cost-item-value {
  color: var(--text-bright);
  font-weight: 600;
}

/* --- Events Panel --- */
.event-row {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 6px 12px;
  border-bottom: 1px solid var(--border);
  font-size: 0.8rem;
  transition: background var(--transition);
}

.event-row:hover {
  background: rgba(255, 255, 255, 0.02);
}

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

.event-time {
  color: var(--text-muted);
  flex-shrink: 0;
  min-width: 70px;
}

.event-source {
  color: var(--accent);
  flex-shrink: 0;
  min-width: 60px;
  font-weight: 600;
}

.event-message {
  color: var(--text);
  flex: 1;
}

.event-row.info .event-message    { color: var(--text-dim); }
.event-row.warn .event-message    { color: var(--yellow); }
.event-row.error .event-message   { color: var(--red); }
.event-row.critical .event-message {
  color: var(--red);
  font-weight: 700;
  animation: pulse 1s ease-in-out infinite;
}

.event-severity {
  font-size: 0.65rem;
  padding: 1px 4px;
  border-radius: 2px;
  text-transform: uppercase;
  flex-shrink: 0;
}

.event-row.info .event-severity    { color: var(--text-muted); }
.event-row.warn .event-severity    { background: rgba(210, 153, 34, 0.15); color: var(--yellow); }
.event-row.error .event-severity   { background: rgba(248, 81, 73, 0.15); color: var(--red); }
.event-row.critical .event-severity { background: rgba(248, 81, 73, 0.25); color: var(--red); font-weight: 700; }

.events-empty {
  color: var(--text-muted);
  text-align: center;
  padding: 24px;
  font-style: italic;
}

/* --- Footer --- */
.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 16px;
  border-top: 1px solid var(--border);
  background: var(--card);
  font-size: 0.75rem;
  color: var(--text-muted);
  position: sticky;
  bottom: 0;
}

.keybind {
  display: inline-block;
  padding: 0 4px;
  margin: 0 2px;
  border: 1px solid var(--border);
  border-radius: 2px;
  font-size: 0.7rem;
  color: var(--text-dim);
  background: var(--bg);
}

/* --- Stale warning --- */
.stale-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  padding: 4px 12px;
  background: rgba(210, 153, 34, 0.15);
  border-bottom: 1px solid var(--yellow);
  color: var(--yellow);
  font-size: 0.75rem;
  text-align: center;
  z-index: 10;
}

/* --- uPlot Overrides --- */
.uplot {
  font-family: var(--font-mono) !important;
}

.u-legend {
  font-size: 0.7rem !important;
  color: var(--text-dim) !important;
}

.u-legend th {
  color: var(--text-muted) !important;
}

/* --- Token Usage Tree --- */
.tt-row {
  display: grid;
  grid-template-columns: 1fr repeat(8, 70px);
  align-items: center;
  padding: 3px 8px;
  font-size: 0.8rem;
  border-bottom: 1px solid rgba(48, 54, 61, 0.4);
}

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

.tt-header {
  color: var(--text-muted);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 6px;
  margin-bottom: 2px;
}

.tt-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text);
}

.tt-col {
  text-align: right;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.tt-toggle {
  cursor: pointer;
  transition: background var(--transition);
}

.tt-toggle:hover {
  background: rgba(255, 255, 255, 0.03);
}

.tt-account .tt-name {
  font-weight: 700;
  color: var(--accent);
}

.tt-key {
  padding-left: 24px;
}

.tt-key .tt-name {
  color: var(--magenta);
  font-weight: 600;
}

.tt-model {
  padding-left: 48px;
}

.tt-model .tt-name {
  color: var(--text-dim);
}

.tt-grand {
  border-top: 1px solid var(--border);
  margin-top: 4px;
  padding-top: 6px;
}

.tt-grand .tt-name {
  font-weight: 700;
  color: var(--text-bright);
}

.tt-grand .tt-col {
  font-weight: 700;
  color: var(--text-bright);
}

.tt-reqs {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-weight: 400;
  margin-left: 6px;
}

.cost-green  { color: var(--green) !important; }
.cost-yellow { color: var(--yellow) !important; }
.cost-red    { color: var(--red) !important; }

.tt-footer {
  margin-top: 8px;
  font-size: 0.7rem;
  color: var(--text-muted);
  text-align: right;
}

.tt-refresh-btn {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 2px 8px;
  cursor: pointer;
  margin-left: 8px;
  transition: background var(--transition), border-color var(--transition);
}

.tt-refresh-btn:hover {
  background: var(--border);
  border-color: var(--accent);
}

@media (max-width: 768px) {
  .tt-row {
    grid-template-columns: 1fr repeat(4, 60px);
  }
  /* Hide token columns on mobile, show only cost columns */
  .tt-row > .tt-col:nth-child(-n+4 of .tt-col) {
    display: none;
  }
}

/* --- Stat Cards (KPI grid) --- */
.stats-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gap);
  margin-bottom: var(--gap);
}

.stat-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  border-top: 3px solid var(--accent);
}

.stat-card-value {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-bright);
  line-height: 1.2;
}

.stat-card-value.green  { color: var(--green); }
.stat-card-value.red    { color: var(--red); }
.stat-card-value.yellow { color: var(--yellow); }

.stat-card-label {
  font-size: 0.7rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 4px;
}

.stat-card-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.stat-card-mini-bar {
  display: flex;
  height: 6px;
  border-radius: 2px;
  overflow: hidden;
  margin-top: 6px;
}

.stat-card-mini-bar .seg-cc { background: var(--accent); }
.stat-card-mini-bar .seg-ai { background: var(--magenta); }

/* --- Model Distribution Bar --- */
.model-bar-wrap {
  margin-bottom: var(--gap);
}

.model-bar-title {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.model-bar {
  display: flex;
  height: 28px;
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 8px;
}

.model-bar-seg {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--bg);
  transition: width var(--transition);
  min-width: 2px;
}

.model-bar-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.model-bar-legend-item {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.75rem;
}

.model-bar-swatch {
  width: 8px;
  height: 8px;
  border-radius: 2px;
  flex-shrink: 0;
}

.model-bar-name {
  color: var(--text-dim);
}

.model-bar-count {
  color: var(--text);
  font-weight: 600;
}

.model-bar-pct {
  color: var(--text-muted);
  font-size: 0.7rem;
}

/* --- Error Details --- */
.error-details {
  margin-top: var(--gap);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px;
}

.error-details-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
  color: var(--red);
  font-weight: 600;
}

.error-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 3px 0;
  font-size: 0.8rem;
  border-bottom: 1px solid rgba(48, 54, 61, 0.4);
}

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

.error-time {
  color: var(--text-muted);
  flex-shrink: 0;
  min-width: 60px;
}

.error-model {
  color: var(--text);
  flex-shrink: 0;
  min-width: 80px;
}

.error-acct {
  color: var(--accent);
  flex-shrink: 0;
  min-width: 24px;
  font-weight: 600;
}

.error-msg {
  color: var(--red);
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* --- Quota Health Badge --- */
.health-badge {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 6px;
  vertical-align: middle;
}

.health-badge.healthy   { background: var(--green); box-shadow: 0 0 4px var(--green); }
.health-badge.warning   { background: var(--yellow); box-shadow: 0 0 4px var(--yellow); }
.health-badge.unhealthy { background: var(--red); box-shadow: 0 0 4px var(--red); }

.quota-health-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
  font-size: 0.75rem;
  color: var(--text-dim);
}

.quota-oauth {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.quota-today {
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .nodes-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats-summary {
    grid-template-columns: repeat(3, 1fr);
  }

  .stats-cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  html {
    font-size: 12px;
  }

  .dashboard {
    grid-template-columns: 1fr;
  }

  .panel-wide {
    grid-column: 1;
  }

  .nodes-grid {
    grid-template-columns: 1fr 1fr;
  }

  .quota-grid {
    grid-template-columns: 1fr;
  }

  .stats-summary {
    grid-template-columns: 1fr;
  }

  .stats-details {
    grid-template-columns: 1fr;
  }

  .stats-cards {
    grid-template-columns: 1fr;
  }

  .header-sub {
    display: none;
  }
}

@media (max-width: 480px) {
  .nodes-grid {
    grid-template-columns: 1fr;
  }

  .header {
    flex-direction: column;
    gap: 6px;
  }

  .footer {
    flex-direction: column;
    gap: 4px;
  }

  .cost-legend {
    flex-direction: column;
    gap: 6px;
  }
}