/* ===== CSS VARIABLES ===== */
:root {
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-glass: rgba(17, 24, 39, 0.75);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);

  --accent-cyan: #00d4ff;
  --accent-purple: #7c3aed;
  --accent-success: #10b981;
  --accent-danger: #ef4444;
  --accent-warning: #f59e0b;

  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
}

/* ===== RESET & BASE ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Subtle animated grid background */
body::before {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image:
    linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

.hidden {
  display: none !important;
}

/* ===== GLASS CARD ===== */
.glass-card {
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  box-shadow: var(--glass-shadow);
}

/* ===== APP SHELL ===== */
.app-shell {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ===== TOP BAR ===== */
.top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 24px;
  background: rgba(10, 14, 23, 0.9);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.brand-icon {
  color: var(--accent-cyan);
}

.brand-text {
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-primary);
  letter-spacing: 0.02em;
}

.status-cluster {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Status Badge */
.status-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

.status-badge.disconnected {
  background: rgba(100, 116, 139, 0.2);
  color: var(--text-muted);
  border: 1px solid rgba(100, 116, 139, 0.3);
}
.status-badge.disconnected .status-dot {
  background: var(--text-muted);
}

.status-badge.connected {
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-success);
  border: 1px solid rgba(16, 185, 129, 0.3);
}
.status-badge.connected .status-dot {
  background: var(--accent-success);
  animation: pulse-dot 2s ease-in-out infinite;
}

.status-badge.error {
  background: rgba(239, 68, 68, 0.15);
  color: var(--accent-danger);
  border: 1px solid rgba(239, 68, 68, 0.3);
}
.status-badge.error .status-dot {
  background: var(--accent-danger);
}

/* Call Timer */
.call-timer {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent-cyan);
  letter-spacing: 0.1em;
  min-width: 50px;
  text-align: center;
}

/* Language Pill */
.language-pill {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  background: rgba(124, 58, 237, 0.15);
  color: var(--accent-purple);
  border: 1px solid rgba(124, 58, 237, 0.3);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ===== ANIMATIONS ===== */
@keyframes pulse-dot {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
  50% { opacity: 0.7; box-shadow: 0 0 0 4px rgba(16, 185, 129, 0); }
}

@keyframes pulse-ring {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(1.8); opacity: 0; }
}

@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* ===== PRE-CALL (AUTH) SCREEN ===== */
.auth-section {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
}

.pre-call-card {
  max-width: 480px;
  width: 100%;
  padding: 40px 32px;
  text-align: center;
  animation: fadeSlideUp 0.6s ease-out;
}

.pre-call-header {
  margin-bottom: 28px;
}

.pre-call-icon {
  color: var(--accent-cyan);
  margin-bottom: 12px;
}

.pre-call-header h1 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.pre-call-sub {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

/* Scenario Grid */
.scenario-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--glass-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 32px;
}

.scenario-item {
  background: rgba(17, 24, 39, 0.6);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.scenario-label {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.scenario-value {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-primary);
}

.scenario-value.mono {
  font-family: var(--font-mono);
  color: var(--accent-cyan);
}

.scenario-value.accent {
  color: var(--accent-warning);
}

/* Start Call Button */
.call-btn-start {
  position: relative;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, var(--accent-success), #059669);
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 8px;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.3);
}

.call-btn-start:hover {
  transform: scale(1.08);
  box-shadow: 0 0 30px rgba(16, 185, 129, 0.5);
}

.call-btn-start:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.call-btn-ring {
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid var(--accent-success);
  animation: pulse-ring 2s ease-out infinite;
}

.call-btn-label {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Divider */
.divider-or {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 20px 0;
  color: var(--text-muted);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.divider-or::before, .divider-or::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--glass-border);
}

/* Phone call section */
.phone-call-section {
  width: 100%;
}
.phone-call-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}
.phone-input-row {
  display: flex;
  gap: 8px;
}
.phone-input {
  flex: 1;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--transition-fast);
}
.phone-input::placeholder {
  color: var(--text-muted);
  font-family: var(--font-sans);
}
.phone-input:focus {
  border-color: rgba(0, 212, 255, 0.4);
}
.call-me-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  border: none;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent-cyan), #0099cc);
  color: var(--bg-primary);
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
}
.call-me-btn:hover {
  transform: scale(1.03);
  box-shadow: 0 0 16px rgba(0, 212, 255, 0.3);
}
.call-me-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}
.call-me-status {
  font-size: 0.75rem;
  margin-top: 8px;
  min-height: 1.2em;
}
.call-me-status.success { color: var(--accent-success); }
.call-me-status.error { color: var(--accent-danger); }
.call-me-status.loading { color: var(--accent-cyan); }

/* ===== ACTIVE CALL DASHBOARD ===== */
.app-section {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 16px;
  padding-bottom: 100px; /* space for controls bar */
}

.dashboard-grid {
  display: grid;
  grid-template-columns: 280px 1fr 300px;
  gap: 16px;
  flex: 1;
  min-height: 0;
}

/* Left Column */
.col-left {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.visualizer-panel {
  position: relative;
  height: 180px;
  overflow: hidden;
}

#audio-visualizer {
  width: 100%;
  height: 100%;
  display: block;
}

.visualizer-overlay {
  position: absolute;
  top: 8px;
  left: 10px;
  pointer-events: none;
}

.visualizer-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 700;
  color: var(--accent-cyan);
  opacity: 0.6;
  letter-spacing: 0.15em;
}

.video-panel {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--bg-secondary);
}

.video-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.8rem;
  z-index: 1;
}

.video-placeholder svg {
  opacity: 0.4;
}

#video-preview {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Center Column */
.col-center {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.transcript-panel {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 400px;
}

.transcript-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--glass-border);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.transcript-header svg {
  color: var(--accent-cyan);
  opacity: 0.7;
}

.transcript-body {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  scroll-behavior: smooth;
}

/* Scrollbar */
.transcript-body::-webkit-scrollbar {
  width: 4px;
}
.transcript-body::-webkit-scrollbar-track {
  background: transparent;
}
.transcript-body::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.1);
  border-radius: 4px;
}

/* Messages */
.message {
  padding: 8px 14px;
  border-radius: 12px;
  max-width: 85%;
  word-wrap: break-word;
  font-size: 0.875rem;
  line-height: 1.5;
  animation: fadeSlideUp 0.2s ease-out;
}

.message .msg-time {
  display: block;
  font-size: 0.6rem;
  margin-top: 4px;
  opacity: 0.5;
  font-family: var(--font-mono);
}

.message.user {
  align-self: flex-end;
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.2), rgba(0, 212, 255, 0.1));
  border: 1px solid rgba(0, 212, 255, 0.15);
  color: var(--text-primary);
  border-bottom-right-radius: 4px;
}

.message.gemini {
  align-self: flex-start;
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.2), rgba(124, 58, 237, 0.1));
  border: 1px solid rgba(124, 58, 237, 0.15);
  color: var(--text-primary);
  border-bottom-left-radius: 4px;
}

/* Input Area */
.input-area {
  display: flex;
  gap: 8px;
  padding: 12px;
  border-top: 1px solid var(--glass-border);
}

.input-area input {
  flex: 1;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.input-area input::placeholder {
  color: var(--text-muted);
}

.input-area input:focus {
  border-color: rgba(0, 212, 255, 0.4);
}

.btn-send {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  border: none;
  background: var(--accent-cyan);
  color: var(--bg-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.btn-send:hover {
  background: #33ddff;
  transform: scale(1.05);
}

/* Right Column */
.col-right {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.info-card {
  animation: fadeSlideUp 0.3s ease-out;
}

.info-card-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--glass-border);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.info-card-header svg {
  color: var(--accent-cyan);
  opacity: 0.7;
}

.info-card-header.booking-confirmed {
  color: var(--accent-success);
}
.info-card-header.booking-confirmed svg {
  color: var(--accent-success);
}

.info-card-body {
  padding: 12px 14px;
}

.info-placeholder {
  color: var(--text-muted);
  font-size: 0.8rem;
  font-style: italic;
}

/* Info Data Grid */
.info-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 12px;
  font-size: 0.8rem;
}

.info-grid .info-label {
  color: var(--text-muted);
  font-weight: 500;
  white-space: nowrap;
}

.info-grid .info-value {
  color: var(--text-primary);
  font-weight: 500;
}

.info-grid .info-value.highlight {
  color: var(--accent-cyan);
  font-family: var(--font-mono);
}

.info-grid .info-value.success {
  color: var(--accent-success);
}

.info-grid .info-value.warning {
  color: var(--accent-warning);
}

/* Service Timeline */
.service-timeline {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--glass-border);
}

.service-timeline-title {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.timeline-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 6px 0;
  font-size: 0.75rem;
  position: relative;
}

.timeline-item:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 5px;
  top: 20px;
  bottom: -6px;
  width: 1px;
  background: var(--glass-border);
}

.timeline-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent-purple);
  flex-shrink: 0;
  margin-top: 2px;
}

.timeline-content {
  flex: 1;
}

.timeline-content .tl-type {
  font-weight: 600;
  color: var(--text-primary);
}

.timeline-content .tl-detail {
  color: var(--text-muted);
  font-size: 0.7rem;
}

/* Next Service Badge */
.next-service-badge {
  margin-top: 10px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.2);
  font-size: 0.8rem;
}

.next-service-badge .ns-title {
  font-weight: 600;
  color: var(--accent-warning);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.next-service-badge .ns-detail {
  color: var(--text-secondary);
  font-size: 0.75rem;
}

/* ===== CONTROLS BAR ===== */
.controls-bar {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 24px;
  z-index: 100;
  border: 1px solid var(--glass-border);
}

.ctrl-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  position: relative;
}

.ctrl-btn .icon-off {
  display: none;
}

.ctrl-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.15);
}

/* Active state (mic on, camera on, etc.) */
.ctrl-btn.active {
  background: rgba(0, 212, 255, 0.15);
  color: var(--accent-cyan);
  border-color: rgba(0, 212, 255, 0.3);
  box-shadow: 0 0 12px rgba(0, 212, 255, 0.15);
}

.ctrl-btn.active .icon-on {
  display: block;
}
.ctrl-btn.active .icon-off {
  display: none;
}

/* Inactive = show off icon (muted state) */
.ctrl-btn:not(.active) .icon-on {
  display: none;
}
.ctrl-btn:not(.active) .icon-off {
  display: block;
}

/* Initially show "on" icon since not yet toggled */
.ctrl-btn[data-active="false"] .icon-on {
  display: block;
}
.ctrl-btn[data-active="false"] .icon-off {
  display: none;
}

/* End Call Button */
.ctrl-btn-danger {
  background: rgba(239, 68, 68, 0.15) !important;
  color: var(--accent-danger) !important;
  border-color: rgba(239, 68, 68, 0.3) !important;
}

.ctrl-btn-danger:hover {
  background: rgba(239, 68, 68, 0.25) !important;
  box-shadow: 0 0 16px rgba(239, 68, 68, 0.2);
}

/* ===== SESSION END SCREEN ===== */
.session-end-section {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
}

.session-end-card {
  max-width: 580px;
  width: 100%;
  padding: 36px 32px;
  text-align: center;
  animation: fadeSlideUp 0.5s ease-out;
  max-height: 85vh;
  overflow-y: auto;
}

.session-end-card::-webkit-scrollbar {
  width: 4px;
}
.session-end-card::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.1);
  border-radius: 4px;
}

.session-end-icon {
  color: var(--accent-success);
  margin-bottom: 16px;
}

.session-end-card h2 {
  font-size: 1.3rem;
  margin-bottom: 16px;
}

.call-summary {
  margin-bottom: 24px;
  text-align: left;
}

/* Outcome Badge */
.outcome-badge {
  display: inline-block;
  padding: 6px 18px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  margin-bottom: 20px;
}

.outcome-success {
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-success);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.outcome-neutral {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-warning);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

/* Summary Sections */
.summary-section {
  margin-bottom: 16px;
  padding-bottom: 4px;
}

.summary-section-title {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-cyan);
  margin-bottom: 8px;
  text-align: left;
}

.call-summary .summary-item {
  display: flex;
  justify-content: space-between;
  padding: 5px 0;
  border-bottom: 1px solid var(--glass-border);
  font-size: 0.8rem;
}

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

.call-summary .summary-value {
  color: var(--text-primary);
  font-weight: 500;
  text-align: right;
  max-width: 65%;
}

/* Transcript Toggle */
.transcript-toggle {
  width: 100%;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  text-align: left;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition-fast);
}

.transcript-toggle:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
}

.toggle-icon {
  font-size: 0.65rem;
  transition: transform var(--transition-fast);
}

.summary-section.expanded .toggle-icon {
  transform: rotate(90deg);
}

.transcript-full {
  display: none;
  margin-top: 10px;
  max-height: 300px;
  overflow-y: auto;
  padding: 8px;
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-sm);
  border: 1px solid var(--glass-border);
}

.transcript-full::-webkit-scrollbar {
  width: 3px;
}
.transcript-full::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.1);
  border-radius: 3px;
}

.summary-section.expanded .transcript-full {
  display: block;
}

.tr-line {
  padding: 4px 0;
  font-size: 0.75rem;
  line-height: 1.5;
  text-align: left;
  display: flex;
  gap: 6px;
}

.tr-line:not(:last-child) {
  border-bottom: 1px solid rgba(255,255,255,0.03);
}

.tr-time {
  font-family: var(--font-mono);
  color: var(--text-muted);
  font-size: 0.65rem;
  flex-shrink: 0;
  margin-top: 1px;
}

.tr-role {
  font-weight: 600;
  flex-shrink: 0;
}

.tr-user .tr-role {
  color: var(--accent-cyan);
}

.tr-gemini .tr-role {
  color: var(--accent-purple);
}

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

.btn-restart {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-restart:hover {
  background: rgba(0, 212, 255, 0.1);
  border-color: rgba(0, 212, 255, 0.3);
  color: var(--accent-cyan);
}

/* ===== MOBILE TABS (hidden on desktop) ===== */
.mobile-tabs {
  display: none;
}

/* ===== RESPONSIVE ===== */

/* Tablet */
@media (max-width: 1100px) {
  .dashboard-grid {
    grid-template-columns: 1fr 1fr;
  }
  .col-left {
    grid-column: 1 / -1;
    flex-direction: row;
  }
  .visualizer-panel {
    flex: 1;
    height: 150px;
  }
  .video-panel {
    flex: 1;
  }
  .col-right {
    grid-column: 1 / -1;
    flex-direction: row;
    flex-wrap: wrap;
  }
  .col-right .info-card {
    flex: 1;
    min-width: 200px;
  }
}

/* Mobile — full phone-call-app experience */
@media (max-width: 768px) {
  /* Prevent bounce / overscroll on iOS */
  html, body {
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
  }

  /* Top bar: compact */
  .top-bar {
    padding: 8px 12px;
    gap: 6px;
  }
  .brand-icon {
    width: 20px;
    height: 20px;
  }
  .brand-text {
    font-size: 0.75rem;
    max-width: 110px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .status-cluster {
    gap: 6px;
  }
  .status-badge {
    padding: 3px 8px;
    font-size: 0.6rem;
    gap: 4px;
  }
  .status-text {
    display: none; /* just show dot on mobile */
  }
  .status-dot {
    width: 7px;
    height: 7px;
  }
  .call-timer {
    font-size: 0.8rem;
    min-width: 40px;
  }
  .language-pill {
    font-size: 0.6rem;
    padding: 2px 7px;
  }

  /* Pre-call screen */
  .auth-section {
    padding: 20px 12px;
    align-items: flex-start;
    padding-top: 10vh;
  }
  .pre-call-card {
    padding: 24px 16px;
    border-radius: var(--radius-sm);
  }
  .pre-call-header h1 {
    font-size: 1.2rem;
  }
  .pre-call-icon {
    width: 36px;
    height: 36px;
  }
  .scenario-grid {
    grid-template-columns: 1fr 1fr;
    margin-bottom: 24px;
  }
  .scenario-item {
    padding: 8px 10px;
  }
  .scenario-label {
    font-size: 0.55rem;
  }
  .scenario-value {
    font-size: 0.75rem;
  }
  .call-btn-start {
    width: 68px;
    height: 68px;
  }
  .call-btn-start svg {
    width: 26px;
    height: 26px;
  }
  .call-btn-label {
    font-size: 0.7rem;
  }

  /* Active call: mobile-first vertical layout */
  .app-section {
    padding: 0;
    padding-bottom: 80px; /* controls bar height */
    overflow: hidden;
    height: calc(100vh - 44px); /* minus top bar */
  }
  .dashboard-grid {
    display: flex;
    flex-direction: column;
    gap: 0;
    height: 100%;
    min-height: 0;
  }

  /* Visualizer: slim strip at top */
  .col-left {
    flex-direction: row;
    gap: 0;
    flex-shrink: 0;
  }
  .visualizer-panel {
    height: 80px;
    border-radius: 0;
    border-left: none;
    border-right: none;
    border-top: none;
    flex: 1;
  }
  .visualizer-overlay {
    top: 4px;
    left: 6px;
  }
  .visualizer-label {
    font-size: 0.5rem;
  }

  /* Video: hidden by default on mobile, small when active */
  .video-panel {
    display: none;
    border-radius: 0;
  }
  .video-panel.mobile-video-active {
    display: block;
    position: fixed;
    top: 52px;
    right: 8px;
    width: 120px;
    height: 90px;
    z-index: 50;
    border-radius: var(--radius-sm);
    border: 1px solid var(--glass-border);
    box-shadow: 0 4px 20px rgba(0,0,0,0.5);
  }

  /* Transcript: takes most of the screen */
  .col-center {
    flex: 1;
    min-height: 0;
    overflow: hidden;
  }
  .transcript-panel {
    height: 100%;
    min-height: unset;
    border-radius: 0;
    border-left: none;
    border-right: none;
  }
  .transcript-header {
    padding: 8px 12px;
    font-size: 0.7rem;
  }
  .transcript-body {
    padding: 8px;
    gap: 6px;
  }
  .message {
    padding: 6px 10px;
    font-size: 0.8rem;
    max-width: 90%;
    border-radius: 10px;
  }
  .message .msg-time {
    font-size: 0.55rem;
  }
  .input-area {
    padding: 8px;
    gap: 6px;
  }
  .input-area input {
    padding: 8px 10px;
    font-size: 0.8rem;
  }
  .btn-send {
    width: 36px;
    height: 36px;
  }
  .btn-send svg {
    width: 16px;
    height: 16px;
  }

  /* Right column: collapsible tab-based on mobile */
  .col-right {
    flex-direction: column;
    flex-shrink: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }
  .col-right.mobile-expanded {
    max-height: 50vh;
    overflow-y: auto;
    border-top: 1px solid var(--glass-border);
  }

  /* Mobile tab bar */
  .mobile-tabs {
    display: flex;
    gap: 0;
    flex-shrink: 0;
    border-top: 1px solid var(--glass-border);
    background: var(--bg-glass);
  }
  .mobile-tab {
    flex: 1;
    padding: 8px 4px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-family: var(--font-sans);
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all var(--transition-fast);
  }
  .mobile-tab.active {
    color: var(--accent-cyan);
    border-bottom-color: var(--accent-cyan);
  }
  .mobile-tab:hover {
    color: var(--text-secondary);
  }

  /* Info cards on mobile */
  .col-right .info-card {
    min-width: unset;
    border-radius: 0;
    border-left: none;
    border-right: none;
  }
  .info-card-header {
    padding: 8px 12px;
    font-size: 0.65rem;
  }
  .info-card-body {
    padding: 10px 12px;
  }
  .info-grid {
    font-size: 0.75rem;
    gap: 4px 8px;
  }

  /* Controls bar: edge to edge, safe area aware */
  .controls-bar {
    bottom: 0;
    left: 0;
    right: 0;
    transform: none;
    border-radius: 0;
    border-left: none;
    border-right: none;
    border-bottom: none;
    gap: 0;
    padding: 8px 0;
    padding-bottom: max(8px, env(safe-area-inset-bottom));
    justify-content: space-evenly;
  }
  .ctrl-btn {
    width: 48px;
    height: 48px;
  }
  .ctrl-btn svg {
    width: 20px;
    height: 20px;
  }

  /* Session end: full mobile */
  .session-end-section {
    padding: 20px 12px;
    align-items: flex-start;
    padding-top: 8vh;
  }
  .session-end-card {
    padding: 24px 16px;
    max-height: 80vh;
  }
  .session-end-card h2 {
    font-size: 1.1rem;
  }
  .outcome-badge {
    font-size: 0.7rem;
    padding: 5px 14px;
  }
  .call-summary .summary-item {
    font-size: 0.75rem;
    padding: 4px 0;
  }
  .call-summary .summary-value {
    max-width: 60%;
  }
  .summary-section-title {
    font-size: 0.65rem;
  }
  .transcript-toggle {
    font-size: 0.75rem;
    padding: 8px 12px;
  }
  .tr-line {
    font-size: 0.7rem;
    flex-wrap: wrap;
  }
  .tr-time {
    font-size: 0.6rem;
  }
  .btn-restart {
    width: 100%;
    justify-content: center;
    padding: 10px 20px;
    font-size: 0.85rem;
  }
}

/* Extra small phones (iPhone SE, etc.) */
@media (max-width: 380px) {
  .brand-text {
    display: none; /* just show icon */
  }
  .scenario-grid {
    grid-template-columns: 1fr;
  }
  .scenario-item {
    padding: 6px 8px;
  }
  .call-btn-start {
    width: 60px;
    height: 60px;
  }
  .visualizer-panel {
    height: 60px;
  }
  .ctrl-btn {
    width: 42px;
    height: 42px;
  }
  .ctrl-btn svg {
    width: 18px;
    height: 18px;
  }
  .message {
    font-size: 0.75rem;
    max-width: 92%;
  }
}