/* Design tokens (from landing page theme.css) */
:root {
  --bg: #0a0a0d;
  --bg-alt: #111116;
  --fg: #f0ede8;
  --fg-muted: #8a8a8a;
  --accent: #00c4a0;
  --accent-dim: rgba(0, 196, 160, 0.12);
  --border: rgba(240, 237, 232, 0.08);
  --card-bg: #0f0f14;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Nav */
.nav {
  padding: 1rem 3rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav-inner {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--fg);
  text-decoration: none;
}
.nav-logo .accent { color: var(--accent); }
.nav-tagline {
  color: var(--fg-muted);
  font-size: 0.8rem;
  flex: 1;
}
.nav-back {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--fg-muted);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color 0.2s;
}
.nav-back:hover { color: var(--fg); }

/* Demo container */
.demo-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 3rem 2rem 5rem;
}

.demo-header {
  text-align: center;
  margin-bottom: 3rem;
}
.demo-eyebrow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  font-family: var(--font-display);
  font-weight: 500;
  margin-bottom: 1rem;
}
.eyebrow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}
.demo-headline {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}
.demo-sub {
  color: var(--fg-muted);
  font-size: 1rem;
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.65;
}

/* Call interface */
.call-interface {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2.5rem;
  margin-bottom: 2rem;
}

.call-status-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}
.status-indicator {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--fg-muted);
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--fg-muted);
}
.status-dot.initializing { background: #f59e0b; }
.status-dot.connecting { background: #f59e0b; animation: blink 1s infinite; }
.status-dot.ready { background: var(--accent); }
.status-dot.in-call { background: var(--accent); animation: blink 1.5s infinite; }
.status-dot.error { background: #ef4444; }
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.call-timer {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--fg-muted);
  letter-spacing: 0.05em;
}

/* Waveform */
.waveform-container {
  background: var(--bg);
  border-radius: 12px;
  padding: 1rem;
  margin-bottom: 1.5rem;
  overflow: hidden;
}
#waveformCanvas {
  width: 100%;
  height: 80px;
  display: block;
}

/* Transcript */
.call-transcript {
  background: var(--bg-alt);
  border-radius: 12px;
  padding: 1.5rem;
  min-height: 200px;
  max-height: 320px;
  overflow-y: auto;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}
.transcript-placeholder {
  color: var(--fg-muted);
  font-style: italic;
  font-size: 0.85rem;
  text-align: center;
  padding-top: 1rem;
}
.transcript-entry {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1rem;
  align-items: flex-start;
}
.transcript-entry:last-child { margin-bottom: 0; }
.transcript-role {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  flex-shrink: 0;
  margin-top: 2px;
}
.transcript-entry.agent .transcript-role {
  background: var(--accent-dim);
  color: var(--accent);
}
.transcript-entry.user .transcript-role {
  background: rgba(240, 237, 232, 0.08);
  color: var(--fg-muted);
}
.transcript-text {
  color: var(--fg);
  line-height: 1.55;
}
.transcript-entry.user .transcript-text { color: #f0ede8; }
.transcript-entry.agent .transcript-text { color: #c8e6df; }

/* Call controls */
.call-controls {
  display: flex;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.btn-call {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--accent);
  color: #0a0a0d;
  border: none;
  border-radius: 50px;
  padding: 1rem 2.5rem;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
  min-width: 200px;
  justify-content: center;
}
.btn-call:hover {
  transform: scale(1.03);
  box-shadow: 0 0 30px rgba(0, 196, 160, 0.3);
}
.btn-call:active { transform: scale(0.98); }
.btn-call:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}
.btn-icon { display: flex; align-items: center; }

/* Scenario pills */
.scenario-pills {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.scenario-label {
  font-size: 0.75rem;
  color: var(--fg-muted);
  margin-right: 0.25rem;
}
.scenario-pill {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: var(--accent-dim);
  color: var(--accent);
  padding: 0.3rem 0.75rem;
  border-radius: 100px;
  border: 1px solid rgba(0, 196, 160, 0.2);
}

/* Feature strip */
.demo-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}
.feature-icon {
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 2px;
}
.feature-item strong {
  display: block;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.2rem;
}
.feature-item p {
  font-size: 0.8rem;
  color: var(--fg-muted);
  line-height: 1.4;
}

/* Responsive */
@media (max-width: 700px) {
  .demo-container { padding: 2rem 1.25rem 4rem; }
  .call-interface { padding: 1.75rem 1.25rem; }
  .demo-features { grid-template-columns: 1fr; gap: 1rem; }
  .nav { padding: 1rem 1.25rem; }
}