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

:root {
  --bg:        #090909;
  --surface:   #111111;
  --surface2:  #181818;
  --border:    #1e1e1e;
  --border2:   #2a2a2a;
  --text:      #e8e4dc;
  --muted:     #555;
  --accent:    #c8f060;
  --accent2:   #60d0f0;
  --danger:    #f06060;
  --ai-ring:   #60d0f0;
  --user-ring: #c8f060;
  --mono: 'DM Mono', monospace;
  --sans: 'Syne', sans-serif;
}

html, body, #root {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
}

audio { display: none; }

/* scrollbar */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 4px; }

/* ── Animations ── */
@keyframes blink { 50% { opacity: 0; } }

@keyframes pulse-ring {
  0%   { transform: scale(1); opacity: inherit; }
  70%  { transform: scale(1.12); }
  100% { transform: scale(1.2); opacity: 0; }
}

@keyframes wave-bounce {
  0%, 100% { height: 4px; }
  50%       { height: var(--h); }
}

@keyframes fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

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

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