:root {
  --bg-base: #070a0f;
  --bg-panel: #0c1118;
  --bg-subcard: #101722;
  --bg-elevated: #151e2c;
  --border-subtle: #1c2636;
  --border-strong: #2a3950;
  --text-primary: #e6edf6;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-cyan: #38bdf8;
  --accent-emerald: #10b981;
  --accent-emerald-bg: rgba(16, 185, 129, 0.12);
  --accent-amber: #f59e0b;
  --accent-amber-bg: rgba(245, 158, 11, 0.14);
  --accent-crimson: #ef4444;
  --accent-crimson-bg: rgba(239, 68, 68, 0.14);
  --font-sans: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

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

body {
  background-color: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

code {
  font-family: var(--font-mono);
  font-size: 0.92em;
}

.hidden {
  display: none !important;
}

/* ========================================================================= */
/* AUTHENTICATION SCREEN                                                     */
/* ========================================================================= */
.auth-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: radial-gradient(circle at 50% 0%, #111a27 0%, var(--bg-base) 65%);
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--bg-panel);
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  padding: 32px 28px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
}

.brand-kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--accent-cyan);
  margin-bottom: 8px;
}

.auth-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.auth-subtitle {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-group input {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg-base);
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 13px;
}

.form-group input:focus {
  outline: none;
  border-color: var(--accent-cyan);
}

.auth-footer {
  margin-top: 22px;
  padding-top: 14px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-muted);
}

/* ========================================================================= */
/* TOPBAR & SHELL                                                            */
/* ========================================================================= */
.dashboard-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border-subtle);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  padding: 6px 10px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  color: var(--accent-cyan);
  border-radius: 4px;
  letter-spacing: 0.05em;
}

.topbar-title {
  font-size: 15px;
  font-weight: 600;
}

.topbar-meta {
  font-size: 12px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.refresh-cluster,
.operator-cluster {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
}

.meta-label {
  color: var(--text-muted);
}

.meta-value {
  color: var(--text-secondary);
}

.operator-badge {
  color: var(--text-secondary);
  background: var(--bg-subcard);
  border: 1px solid var(--border-subtle);
  padding: 4px 10px;
  border-radius: 4px;
}

.dashboard-main {
  max-width: 1440px;
  width: 100%;
  margin: 0 auto;
  padding: 20px 24px 40px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

/* ========================================================================= */
/* GRID LAYOUTS & PANELS                                                     */
/* ========================================================================= */
.grid-top,
.grid-bottom {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 18px;
}

.panel {
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.panel-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-subtle);
}

.section-index {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.panel-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

.panel-description {
  font-size: 13px;
  color: var(--text-secondary);
}

/* ========================================================================= */
/* STATUS BADGES & PILLS                                                     */
/* ========================================================================= */
.status-badge {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 4px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border: 1px solid transparent;
  white-space: nowrap;
}

.status-running {
  background: var(--accent-emerald-bg);
  color: var(--accent-emerald);
  border-color: rgba(16, 185, 129, 0.35);
}

.status-transition {
  background: var(--accent-amber-bg);
  color: var(--accent-amber);
  border-color: rgba(245, 158, 11, 0.4);
}

.status-stopped {
  background: rgba(148, 163, 184, 0.12);
  color: var(--text-secondary);
  border-color: var(--border-strong);
}

.status-error {
  background: var(--accent-crimson-bg);
  color: var(--accent-crimson);
  border-color: rgba(239, 68, 68, 0.4);
}

.status-unknown {
  background: var(--bg-subcard);
  color: var(--text-muted);
  border-color: var(--border-subtle);
}

.pill {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 3px;
  background: var(--bg-subcard);
  border: 1px solid var(--border-strong);
  color: var(--text-secondary);
}

.pill-amber {
  background: var(--accent-amber-bg);
  border-color: rgba(245, 158, 11, 0.35);
  color: var(--accent-amber);
}

/* ========================================================================= */
/* OVERVIEW SECTION                                                          */
/* ========================================================================= */
.overview-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  background: var(--bg-subcard);
  border: 1px solid var(--border-subtle);
  border-radius: 5px;
  padding: 14px 16px;
}

.gpu-chip-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.gpu-model-name {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
}

.gpu-model-sub {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 2px;
}

.availability-indicator {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  margin-top: 4px;
}

.kv-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 16px;
}

.kv-item {
  background: var(--bg-subcard);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  padding: 8px 12px;
}

.kv-item dt {
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.kv-item dd {
  font-size: 13px;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ========================================================================= */
/* BUTTONS & CONTROLS                                                        */
/* ========================================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  padding: 10px 16px;
  border-radius: 4px;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn-sm {
  padding: 5px 10px;
  font-size: 12px;
}

.btn-block {
  width: 100%;
}

.btn-primary {
  background: var(--accent-cyan);
  color: #041019;
}

.btn-ghost {
  background: var(--bg-subcard);
  border-color: var(--border-strong);
  color: var(--text-primary);
}

.btn-ghost:hover:not(:disabled) {
  background: var(--bg-elevated);
}

.controls-button-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.btn-start {
  background: rgba(16, 185, 129, 0.16);
  border-color: var(--accent-emerald);
  color: #d1fae5;
  padding: 13px 16px;
}

.btn-start:hover:not(:disabled) {
  background: rgba(16, 185, 129, 0.26);
}

.btn-stop {
  background: rgba(239, 68, 68, 0.15);
  border-color: var(--accent-crimson);
  color: #fee2e2;
  padding: 13px 16px;
}

.btn-stop:hover:not(:disabled) {
  background: rgba(239, 68, 68, 0.25);
}

.btn-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
}

.control-hint {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
  background: var(--bg-subcard);
  border: 1px solid var(--border-subtle);
  padding: 10px 12px;
  border-radius: 4px;
}

.control-feedback {
  font-size: 12px;
  padding: 10px 12px;
  border-radius: 4px;
  border: 1px solid var(--border-strong);
}

.control-safeguards {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--border-subtle);
}

.safeguard-title {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 6px;
  text-transform: uppercase;
}

.safeguard-list {
  list-style: none;
  font-size: 12px;
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.safeguard-list li::before {
  content: "▪ ";
  color: var(--accent-cyan);
}

/* ========================================================================= */
/* TELEMETRY GAUGES & SUBGRID                                                */
/* ========================================================================= */
.telemetry-gauges {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.gauge-card {
  background: var(--bg-subcard);
  border: 1px solid var(--border-subtle);
  border-radius: 5px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.gauge-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
}

.gauge-label {
  font-size: 12px;
  color: var(--text-secondary);
}

.gauge-value {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
}

.progress-track {
  width: 100%;
  height: 6px;
  background: #06090e;
  border: 1px solid var(--border-subtle);
  border-radius: 3px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--accent-cyan);
}

.gauge-foot {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-muted);
}

.telemetry-subgrid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 12px;
}

.subcard {
  background: var(--bg-subcard);
  border: 1px solid var(--border-subtle);
  border-radius: 5px;
  padding: 14px;
}

.subcard-title {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.kv-compact {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 14px;
}

.kv-compact dt {
  font-size: 11px;
  color: var(--text-muted);
}

.kv-compact dd {
  font-size: 12px;
  color: var(--text-primary);
  word-break: break-all;
}

.processes-box {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
}

.proc-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

.proc-table th,
.proc-table td {
  text-align: left;
  padding: 6px 8px;
  border-bottom: 1px solid var(--border-subtle);
}

.proc-table th {
  color: var(--text-muted);
  font-weight: 500;
}

.telemetry-notice {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.35);
  color: #fde68a;
  padding: 10px 14px;
  border-radius: 4px;
  font-size: 12px;
  font-family: var(--font-mono);
}

/* ========================================================================= */
/* COST & CONNECTION CARDS                                                   */
/* ========================================================================= */
.cost-hero-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.cost-metric-box {
  background: var(--bg-subcard);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.cost-label {
  font-size: 11px;
  color: var(--text-muted);
}

.cost-big {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
}

.cost-sub {
  font-size: 11px;
  color: var(--text-secondary);
}

.cost-projections {
  background: var(--bg-subcard);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  padding: 12px;
}

.projection-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.proj-cell {
  background: var(--bg-base);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
}

.proj-window {
  font-size: 11px;
  color: var(--text-muted);
}

.billing-explainer {
  background: var(--bg-subcard);
  border-left: 3px solid var(--accent-amber);
  padding: 10px 12px;
  font-size: 12px;
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.connection-cards {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.conn-card {
  background: var(--bg-subcard);
  border: 1px solid var(--border-subtle);
  border-radius: 5px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.conn-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
}

.conn-name {
  font-weight: 600;
  font-size: 13px;
}

.conn-endpoint {
  font-size: 11px;
  color: var(--text-muted);
}

/* ========================================================================= */
/* ALERTS, TRANSITION BANNER & MODAL                                         */
/* ========================================================================= */
.alert {
  padding: 11px 14px;
  border-radius: 4px;
  font-size: 13px;
  margin-bottom: 12px;
  border: 1px solid transparent;
}

.alert-error {
  background: var(--accent-crimson-bg);
  border-color: rgba(239, 68, 68, 0.45);
  color: #fecaca;
}

.alert-success {
  background: var(--accent-emerald-bg);
  border-color: rgba(16, 185, 129, 0.45);
  color: #a7f3d0;
}

.transition-banner {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--accent-amber-bg);
  border: 1px solid rgba(245, 158, 11, 0.45);
  color: #fde68a;
  padding: 12px 16px;
  border-radius: 5px;
}

.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(245, 158, 11, 0.3);
  border-top-color: var(--accent-amber);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.transition-text {
  display: flex;
  flex-direction: column;
  font-size: 13px;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(3, 6, 12, 0.82);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 100;
}

.modal-card {
  width: 100%;
  max-width: 480px;
  background: var(--bg-panel);
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.modal-title {
  font-size: 17px;
  font-weight: 600;
}

.modal-body {
  font-size: 13px;
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.modal-warnings {
  padding-left: 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* ========================================================================= */
/* RESPONSIVE BREAKPOINTS                                                    */
/* ========================================================================= */
@media (max-width: 1120px) {
  .grid-top,
  .grid-bottom,
  .telemetry-subgrid {
    grid-template-columns: 1fr;
  }
  .telemetry-gauges {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .topbar,
  .dashboard-main {
    padding-left: 14px;
    padding-right: 14px;
  }
  .overview-hero,
  .kv-grid,
  .controls-button-row,
  .telemetry-gauges,
  .cost-hero-grid,
  .projection-row,
  .kv-compact {
    grid-template-columns: 1fr;
  }
}