:root {
  --bg-space: #0f141c;
  --bg-surface: #18202c;
  --bg-elevated: #212c3d;
  --text-primary: #f0f4f8;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --alexa-cyan: #00cae0;
  --alexa-blue: #0070ba;
  --amazon-amber: #ff9900;
  --accent-green: #00c853;
  --accent-red: #ff5252;
  --border-subtle: #2d3748;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 6px;
  --font-stack: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

body {
  background-color: #080b0f;
  color: var(--text-primary);
  font-family: var(--font-stack);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 20px;
}

/* Device Simulator Outer Frame */
.device-frame {
  width: 100%;
  max-width: 1560px;
  height: 94vh;
  min-height: 860px;
  background-color: var(--bg-space);
  border: 2px solid var(--border-subtle);
  border-radius: 24px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7), 0 0 40px rgba(0, 202, 224, 0.1);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
}

/* Mandatory Simulator Header */
.simulator-header {
  background-color: #121824;
  border-bottom: 1px solid var(--border-subtle);
  padding: 12px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
}

.simulator-tag {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--alexa-cyan);
  letter-spacing: 0.5px;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--alexa-cyan);
  box-shadow: 0 0 10px var(--alexa-cyan);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); opacity: 0.7; }
  50% { transform: scale(1.2); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.7; }
}

.sub-tag {
  color: var(--text-muted);
  font-size: 0.75rem;
  border-left: 1px solid var(--border-subtle);
  padding-left: 10px;
}

.server-status {
  font-size: 0.8rem;
  color: var(--accent-green);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Main Display Screen */
.device-screen {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
}

/* Proactive Event Slide-in Banner */
.proactive-banner {
  background: linear-gradient(135deg, #1e293b, #0f172a);
  border-bottom: 2px solid var(--amazon-amber);
  padding: 18px 24px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  animation: slideDown 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  transition: all 0.3s ease;
  z-index: 10;
}

.proactive-banner.hidden {
  display: none;
}

@keyframes slideDown {
  from { transform: translateY(-100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.banner-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.banner-badge {
  background-color: rgba(255, 153, 0, 0.15);
  color: var(--amazon-amber);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
  border: 1px solid rgba(255, 153, 0, 0.3);
  letter-spacing: 0.5px;
}

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

.banner-body h3 {
  font-size: 1.1rem;
  margin-bottom: 4px;
  color: #fff;
}

.banner-body p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.banner-actions {
  display: flex;
  gap: 12px;
  margin-top: 12px;
}

/* Conversation Feed */
.conversation-container {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.agent-avatar-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-subtle);
}

.alexa-glow {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--alexa-cyan) 0%, var(--alexa-blue) 100%);
  box-shadow: 0 0 20px rgba(0, 202, 224, 0.5);
}

.title-group h1 {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.title-group p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.chat-thread {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.message {
  max-width: 85%;
  padding: 16px;
  border-radius: var(--radius-md);
  line-height: 1.5;
  animation: fadeIn 0.3s ease;
}

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

.assistant-message {
  align-self: flex-start;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
}

.user-message {
  align-self: flex-end;
  background-color: var(--alexa-blue);
  color: #fff;
}

.message-sender {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--alexa-cyan);
  margin-bottom: 6px;
}

/* Acoustic Evidence Card */
.evidence-card {
  margin-top: 12px;
  background-color: var(--bg-elevated);
  border: 1px solid var(--alexa-cyan);
  border-radius: var(--radius-md);
  padding: 16px;
}

.evidence-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  color: var(--alexa-cyan);
  margin-bottom: 10px;
}

.evidence-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 12px;
}

.evidence-metric {
  background: rgba(0, 0, 0, 0.3);
  padding: 8px;
  border-radius: var(--radius-sm);
  text-align: center;
}

.metric-val {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
}

.metric-lbl {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.evidence-waveform {
  height: 48px;
  background: repeating-linear-gradient(90deg, #1e293b, #1e293b 8px, var(--alexa-cyan) 8px, var(--alexa-cyan) 10px);
  border-radius: var(--radius-sm);
  opacity: 0.75;
  margin: 10px 0;
}

/* Control Deck */
.control-deck {
  background-color: #121824;
  border-top: 1px solid var(--border-subtle);
  padding: 16px 24px;
}

.deck-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 10px;
  letter-spacing: 0.5px;
}

.deck-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* Buttons */
.btn {
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  border: none;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary {
  background-color: var(--amazon-amber);
  color: #000;
}

.btn-primary:hover {
  background-color: #e68a00;
}

.btn-ghost {
  background-color: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
}

.btn-ghost:hover {
  background-color: var(--bg-surface);
  color: #fff;
}

.btn-action {
  background-color: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
}

.btn-action:hover {
  background-color: var(--border-subtle);
  border-color: var(--alexa-cyan);
}

/* Drawers / Side Panels */
.drawer {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 440px;
  background-color: var(--bg-surface);
  border-left: 1px solid var(--border-subtle);
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.7);
  display: flex;
  flex-direction: column;
  z-index: 20;
  transition: transform 0.3s ease;
}

.drawer.hidden {
  transform: translateX(100%);
}

.drawer-header {
  padding: 20px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.drawer-sub {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.close-btn {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  color: var(--text-secondary);
  cursor: pointer;
}

.drawer-content {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
}

/* Tool Explorer Cards */
.tools-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.tool-card {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 12px;
}

.tool-name {
  font-weight: 600;
  color: var(--alexa-cyan);
  font-size: 0.9rem;
  margin-bottom: 4px;
}

.tool-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.3;
}

/* Privacy Inspector */
.privacy-badge-box {
  background-color: var(--bg-space);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 12px;
  margin-bottom: 18px;
}

.badge-row {
  display: flex;
  gap: 8px;
  margin-bottom: 8px;
}

.status-pill {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 12px;
}

.status-pill.green {
  background-color: rgba(0, 200, 83, 0.15);
  color: var(--accent-green);
  border: 1px solid rgba(0, 200, 83, 0.3);
}

.status-pill.blue {
  background-color: rgba(0, 112, 186, 0.15);
  color: var(--alexa-cyan);
  border: 1px solid rgba(0, 112, 186, 0.3);
}

.privacy-statement {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.entities-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 10px;
}

.entity-item {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 10px;
}

.entity-top {
  display: flex;
  justify-content: space-between;
  margin-bottom: 4px;
  font-size: 0.85rem;
  font-weight: 600;
}

.provenance-tag {
  font-size: 0.7rem;
  color: var(--alexa-cyan);
}