:root {
  --nx-void: #0a0a0f;
  --nx-deep: #12121a;
  --nx-dark: #1a1a24;
  --nx-surface: #1f1f2e;
  --nx-elevated: #252538;
  --nx-blue: #4a9eff;
  --nx-purple: #8b5cf6;
  --nx-cyan: #06b6d4;
  --nx-magenta: #ec4899;
  --nx-text-primary: #f0f4ff;
  --nx-text-secondary: #a8b2d1;
  --nx-text-muted: #64748b;
  --nx-glass: rgba(255,255,255,0.02);
  --nx-border: rgba(74,158,255,0.15);
  --nx-shadow-sm: 0 2px 8px rgba(0,0,0,0.6);
  --nx-shadow-md: 0 8px 24px rgba(0,0,0,0.7);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  background: linear-gradient(180deg, var(--nx-void) 0%, var(--nx-deep) 100%);
  background-attachment: fixed;
  color: var(--nx-text-primary);
  font-family: 'Exo 2', -apple-system, sans-serif;
  min-height: 100vh;
}
#app {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
.chat-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10,10,15,0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--nx-border);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.chat-header h1 {
  font-family: 'Orbitron', sans-serif;
  font-size: 22px;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: linear-gradient(135deg, var(--nx-blue) 0%, var(--nx-purple) 50%, var(--nx-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.chat-header .subtitle {
  font-family: 'Exo 2', sans-serif;
  font-size: 13px;
  color: var(--nx-text-muted);
  letter-spacing: 0.1em;
}
.chat-header .online {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: 'Exo 2', sans-serif;
  font-size: 13px;
  color: var(--nx-text-muted);
}
.chat-header .online-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #34d399;
  box-shadow: 0 0 8px rgba(52,211,153,0.5);
}
.chat-container {
  flex: 1;
  padding: 16px 12px;
  overflow-y: auto;
}
.msg-row {
  display: flex;
  gap: 12px;
  margin-bottom: 2px;
  padding: 8px 10px;
  border-radius: 8px;
  transition: background 0.15s;
}
.msg-row:hover {
  background: rgba(255,255,255,0.02);
}
.msg-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  flex-shrink: 0;
  object-fit: cover;
  border: 2px solid rgba(74,158,255,0.15);
  margin-top: 2px;
}
.msg-content {
  min-width: 0;
  flex: 1;
}
.msg-name {
  font-family: 'Orbitron', sans-serif;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.03em;
  margin-bottom: 1px;
  display: flex;
  align-items: baseline;
  gap: 6px;
}
.msg-username {
  font-family: 'Exo 2', sans-serif;
  font-size: 12px;
  color: var(--nx-text-muted);
  font-weight: 400;
  letter-spacing: 0;
}
.msg-time {
  font-family: 'Exo 2', sans-serif;
  font-size: 12px;
  color: var(--nx-text-muted);
  font-weight: 300;
  margin-left: auto;
}
.msg-text {
  font-family: 'Exo 2', sans-serif;
  font-size: 17px;
  color: var(--nx-text-primary);
  line-height: 1.5;
  word-wrap: break-word;
}
.msg-text .paren {
  display: block;
  color: var(--nx-text-secondary);
  font-style: italic;
  font-size: 15px;
  margin-bottom: 2px;
}
.system-msg {
  text-align: center;
  padding: 8px 20px;
  margin: 10px 0;
}
.system-msg p {
  font-family: 'Exo 2', sans-serif;
  font-size: 14px;
  font-style: italic;
  color: var(--nx-text-secondary);
  line-height: 1.6;
  max-width: 560px;
  margin: 0 auto;
  padding: 8px 16px;
  border-radius: 8px;
  background: rgba(255,255,255,0.012);
  border: 1px solid rgba(74,158,255,0.05);
}
.scene-header {
  text-align: center;
  padding: 18px 16px 10px;
  margin: 14px 0 6px;
}
.scene-header h2 {
  font-family: 'Orbitron', sans-serif;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: linear-gradient(135deg, var(--nx-blue) 0%, var(--nx-purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.scene-header h3 {
  font-family: 'Orbitron', sans-serif;
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--nx-text-muted);
  margin-top: 4px;
}
.beat-msg {
  text-align: center;
  padding: 12px;
  margin: 6px 0;
}
.beat-msg span {
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--nx-text-muted);
  margin: 0 4px;
  opacity: 0.4;
}
.title-card {
  text-align: center;
  padding: 60px 20px;
  margin: 30px 0;
}
.title-card h1 {
  font-family: 'Orbitron', sans-serif;
  font-size: 52px;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  background: linear-gradient(135deg, var(--nx-blue) 0%, var(--nx-purple) 50%, var(--nx-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 40px rgba(74,158,255,0.35));
}
.title-card .theme-note {
  font-family: 'Exo 2', sans-serif;
  font-size: 14px;
  color: var(--nx-text-muted);
  font-style: italic;
  margin-top: 12px;
}
.title-card .end-tag {
  font-family: 'Orbitron', sans-serif;
  font-size: 12px;
  font-weight: 700;
  color: var(--nx-text-muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-top: 24px;
}
.divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 16px 20px;
}
.divider::before, .divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--nx-border), transparent);
}
.divider span {
  font-family: 'Orbitron', sans-serif;
  font-size: 11px;
  font-weight: 700;
  color: var(--nx-text-muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  white-space: nowrap;
}
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--nx-void); }
::-webkit-scrollbar-thumb { background: var(--nx-elevated); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(74,158,255,0.4); }
@media (max-width: 600px) {
  .chat-container { padding: 8px 4px; }
  .msg-avatar { width: 34px; height: 34px; }
  .msg-name { font-size: 13px; }
  .msg-text { font-size: 15px; }
  .title-card h1 { font-size: 38px; }
  .system-msg p { font-size: 13px; padding: 6px 12px; }
  .chat-header { padding: 12px 14px; }
  .chat-header h1 { font-size: 18px; }
}


/* ---- Audio Player ---- */
.audio-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: rgba(10,10,15,0.96);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-top: 1px solid var(--nx-border);
  padding: 10px 16px;
  display: none;
}
.audio-bar.active { display: block; }
.audio-bar-inner {
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 720px;
  margin: 0 auto;
}
.plyr-wrap { flex: 1; min-width: 0; }
.skip-btn {
  background: none;
  border: none;
  color: var(--nx-text-secondary);
  font-size: 18px;
  cursor: pointer;
  padding: 6px;
  transition: color 0.15s;
  flex-shrink: 0;
}
.skip-btn:hover { color: var(--nx-blue); }
.close-btn {
  background: none;
  border: none;
  color: var(--nx-text-muted);
  font-size: 16px;
  cursor: pointer;
  padding: 6px;
  transition: color 0.15s;
  flex-shrink: 0;
}
.close-btn:hover { color: #ef4444; }

/* Plyr theme overrides for Nexus dark */
.plyr {
  --plyr-color-main: var(--nx-blue);
  --plyr-audio-controls-background: transparent;
  --plyr-audio-control-color: var(--nx-text-secondary);
  --plyr-audio-control-color-hover: #fff;
  --plyr-range-track-height: 5px;
  --plyr-range-thumb-height: 14px;
  --plyr-range-thumb-background: var(--nx-blue);
  --plyr-range-fill-background: var(--nx-blue);
  --plyr-audio-progress-buffered-background: rgba(74,158,255,0.15);
  --plyr-font-family: 'Exo 2', sans-serif;
  --plyr-font-size-time: 12px;
  min-width: 0;
}
.plyr__controls {
  padding: 0 !important;
}
.plyr--audio .plyr__controls {
  background: transparent !important;
  color: var(--nx-text-secondary);
}

/* Read To Me button */
.read-to-me-btn {
  background: linear-gradient(135deg, rgba(139,92,246,0.15), rgba(74,158,255,0.15));
  border: 2px solid var(--nx-purple);
  color: var(--nx-purple);
  font-family: 'Orbitron', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 6px 14px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}
.read-to-me-btn:hover {
  background: var(--nx-purple);
  color: var(--nx-void);
  box-shadow: 0 0 20px rgba(139,92,246,0.3);
}
.read-to-me-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  box-shadow: none;
}

/* Active speaker highlighting */
.msg-row.speaking {
  background: rgba(74,158,255,0.08);
  border-left: 3px solid var(--nx-blue);
  transition: all 0.3s ease;
}
.msg-row.speaking .msg-avatar {
  animation: avatar-pulse 1.5s ease-in-out infinite;
  border-color: var(--nx-blue);
  box-shadow: 0 0 12px rgba(74,158,255,0.4);
}
.msg-row.speaking .msg-name {
  text-shadow: 0 0 8px currentColor;
}
.system-msg.speaking p {
  background: rgba(74,158,255,0.08);
  border-color: rgba(74,158,255,0.25);
  box-shadow: 0 0 12px rgba(74,158,255,0.1);
}
.scene-header.speaking h2,
.scene-header.speaking h3 {
  filter: drop-shadow(0 0 12px rgba(74,158,255,0.5));
}
.beat-msg.speaking span {
  background: var(--nx-blue);
  opacity: 0.8;
}

/* Dimming non-active entries during playback */
.audio-playing .msg-row:not(.speaking),
.audio-playing .system-msg:not(.speaking),
.audio-playing .scene-header:not(.speaking),
.audio-playing .beat-msg:not(.speaking),
.audio-playing .divider:not(.speaking) {
  opacity: 0.35;
  transition: opacity 0.4s ease;
}
.audio-playing .msg-row.speaking,
.audio-playing .system-msg.speaking,
.audio-playing .scene-header.speaking {
  opacity: 1;
  transition: opacity 0.2s ease;
}

@keyframes avatar-pulse {
  0%, 100% { box-shadow: 0 0 4px 0 rgba(74,158,255,0.4); }
  50% { box-shadow: 0 0 16px 6px rgba(74,158,255,0.3); }
}

/* Bottom padding when audio bar is visible */
#app.audio-active .chat-container {
  padding-bottom: 80px;
}

@media (max-width: 600px) {
  .audio-bar { padding: 10px 12px; }
  .audio-controls { gap: 6px; }
  .audio-play-btn { width: 36px; height: 36px; font-size: 14px; }
  .audio-skip { font-size: 14px; }
  .audio-time { font-size: 10px; min-width: 65px; }
}