/* Shared Signal app styles - dark theme, card-based, glass UI */
:root {
  --signal-bg: #050505;
  --signal-glass: rgba(255, 255, 255, 0.05);
  --signal-glass-border: rgba(255, 255, 255, 0.12);
  --signal-glass-strong: rgba(255, 255, 255, 0.08);
  --signal-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
  --signal-shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.6);
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--signal-bg);
  color: #a3a3a3;
}

/* Glass card - base */
.glass-panel,
.glass-card {
  background: var(--signal-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--signal-glass-border);
  box-shadow: var(--signal-shadow), inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

/* Glass card - elevated (modals, primary content) */
.glass-card-elevated {
  background: rgba(12, 12, 14, 0.85);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: var(--signal-shadow-lg), inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

/* Nested glass (inside cards) */
.glass-nested {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
}
.noise-bg {
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.05'/%3E%3C/svg%3E");
  opacity: 0.4;
  pointer-events: none;
  position: fixed;
  top: 0; left: 0; width: 100%; height: 100%;
  z-index: 50;
}
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #0a0a0a; }
::-webkit-scrollbar-thumb { background: #333; border-radius: 3px; }

/* Voice assistant card - glass UI */
.voice-card {
  background: rgba(10, 10, 12, 0.75);
  background-image: radial-gradient(rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 12px 12px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--signal-glass-border);
  box-shadow: var(--signal-shadow-lg), inset 0 1px 0 rgba(255,255,255,0.04);
}
.voice-glow {
  background: radial-gradient(ellipse 80% 50% at 50% 100%, rgba(255,255,255,0.03), transparent);
}
.wave-canvas {
  width: 100%;
  height: 120px;
  display: block;
}
.mic-btn {
  width: 56px;
  height: 56px;
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.9);
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  padding: 0;
}
.mic-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.35);
}
.mic-btn iconify-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  flex-shrink: 0;
}
.mic-btn.recording {
  background: rgba(239, 68, 68, 0.15);
  border-color: rgba(239, 68, 68, 0.5);
  color: #f87171;
  animation: pulse-mic 1.5s ease-in-out infinite;
}
@keyframes pulse-mic {
  0%, 100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.3); }
  50% { box-shadow: 0 0 0 10px rgba(239, 68, 68, 0); }
}