:root {
  --bg-black: #050505;
  --bg-card: #0d0d0d;
  --bg-card-hover: #141414;
  --border-subtle: #222222;
  --border-strong: #383838;
  --text-pure: #ffffff;
  --text-muted: #8e8e93;
  --text-dim: #555555;
  --alert-red: #ff3b30;
  --success-green: #30d158;
  --warning-amber: #ffd60a;
  --accent-white: #f5f5f7;
  --font-mono: "SF Mono", "JetBrains Mono", "Cascadia Code", "Roboto Mono", Consolas, monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  background-color: var(--bg-black);
  color: var(--text-pure);
  font-family: var(--font-sans);
  line-height: 1.45;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow-x: hidden;
  padding-bottom: 40px;
}

/* Container tuned specifically for mobile phone viewports, scaling up nicely to desktop */
.app-container {
  width: 100%;
  max-width: 480px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 12px 14px;
  gap: 12px;
}

/* Header */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-logo {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  border: 1px solid var(--border-strong);
  background: #000;
  padding: 2px;
}

.brand-text h1 {
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-pure);
}

.brand-text p {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  text-transform: uppercase;
}

.status-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  background: #111111;
  border: 1px solid var(--border-strong);
  padding: 4px 10px;
  border-radius: 20px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
}

.pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--success-green);
  box-shadow: 0 0 8px var(--success-green);
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  0% { opacity: 0.4; transform: scale(0.9); }
  50% { opacity: 1; transform: scale(1.15); }
  100% { opacity: 0.4; transform: scale(0.9); }
}

/* Primary Hero Visualizer Card */
.visualizer-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  position: relative;
  overflow: hidden;
}

.visualizer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.context-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  text-transform: uppercase;
}

.sound-toggle-btn {
  background: #181818;
  border: 1px solid var(--border-strong);
  color: var(--text-pure);
  padding: 4px 10px;
  border-radius: 8px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 5px;
  transition: all 0.2s ease;
}

.sound-toggle-btn.active {
  background: #ffffff;
  color: #000000;
  border-color: #ffffff;
}

/* Canvas Area */
.canvas-wrapper {
  position: relative;
  width: 100%;
  height: 180px;
  background: #000000;
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  overflow: hidden;
}

#telemetryCanvas {
  width: 100%;
  height: 100%;
  display: block;
}

.canvas-overlay-labels {
  position: absolute;
  top: 8px;
  left: 10px;
  right: 10px;
  display: flex;
  justify-content: space-between;
  pointer-events: none;
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--text-muted);
}

/* Intervention Notification Banner */
.intervention-banner {
  background: #111111;
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  padding: 12px;
  display: none;
  animation: fadeInDown 0.15s cubic-bezier(0.16, 1, 0.3, 1);
}

.intervention-banner.chatter-alert {
  display: block;
  border-color: var(--alert-red);
  background: #190505;
}

.intervention-banner.override-saved {
  display: block;
  border-color: var(--text-pure);
  background: #0e120f;
}

.intervention-row-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.alert-title {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.alert-latency {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
  padding: 2px 6px;
  border-radius: 4px;
  background: #ffffff;
  color: #000000;
}

.alert-desc {
  font-size: 11px;
  color: #cccccc;
  line-height: 1.4;
}

.savings-badge {
  display: inline-block;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 800;
  color: var(--success-green);
  background: rgba(48, 209, 88, 0.12);
  padding: 3px 8px;
  border-radius: 6px;
  border: 1px solid rgba(48, 209, 88, 0.3);
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* The Big 10-Second Hook Trigger Button */
.action-area {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.induce-btn {
  width: 100%;
  padding: 16px 20px;
  border-radius: 14px;
  background: #ffffff;
  color: #000000;
  border: none;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 900;
  letter-spacing: 1px;
  text-transform: uppercase;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 4px 16px rgba(255, 255, 255, 0.15);
  transition: all 0.15s ease;
  user-select: none;
}

.induce-btn:active {
  transform: scale(0.97);
  background: #d4d4d8;
}

.induce-btn.cooling-down {
  background: #27272a;
  color: #71717a;
  box-shadow: none;
  pointer-events: none;
}

.btn-subtext {
  font-size: 10px;
  color: var(--text-muted);
  text-align: center;
  letter-spacing: 0.5px;
}

/* Real-Time Metrics Grid */
.metrics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.metric-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

.metric-val-wrapper {
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.metric-value {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 800;
  color: var(--text-pure);
}

.metric-unit {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-dim);
}

.metric-bar-bg {
  width: 100%;
  height: 4px;
  background: #181818;
  border-radius: 2px;
  margin-top: 4px;
  overflow: hidden;
}

.metric-bar-fill {
  height: 100%;
  background: #ffffff;
  border-radius: 2px;
  transition: width 0.1s ease;
}

/* Machine Watchdog & Hardware Pod Details */
.companion-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.card-title {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.info-rows {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.info-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11px;
}

.info-key {
  color: var(--text-muted);
}

.info-val {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--text-pure);
}

/* Feed Rate Slider HUD */
.feed-override-hud {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-top: 4px;
  border-top: 1px solid var(--border-subtle);
}

.feed-header {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
}

.feed-progress {
  width: 100%;
  height: 8px;
  background: #1a1a1a;
  border-radius: 4px;
  overflow: hidden;
  position: relative;
}

.feed-fill {
  height: 100%;
  background: #ffffff;
  transition: width 0.08s ease, background-color 0.2s ease;
}

/* Physics Knowledge Drawer */
.physics-drawer {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: 12px 14px;
  font-size: 11px;
}

.physics-drawer summary {
  cursor: pointer;
  font-weight: 800;
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-muted);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.physics-drawer summary::-webkit-details-marker {
  display: none;
}

.physics-drawer summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text-pure);
}

.physics-drawer[open] summary::after {
  content: "-";
}

.physics-content {
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-top: 1px solid var(--border-subtle);
  padding-top: 8px;
}

.code-snippet-box {
  background: #000000;
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: #d4d4d8;
  white-space: pre-wrap;
  max-height: 140px;
  overflow-y: auto;
}

/* Footer */
.app-footer {
  margin-top: 10px;
  text-align: center;
  font-size: 10px;
  color: var(--text-dim);
  letter-spacing: 0.5px;
}

.app-footer a {
  color: var(--text-muted);
  text-decoration: none;
}