/*
 * The Companion agent face. One expressive face used at every size; the animation is load-bearing —
 * it maps to a real AgentRun state (queued/running/held/completed/failed) so a glance reads as live
 * status, the same way the seat-state triad reads human/open/AI. All metrics are in `em` and the size
 * classes set the root font-size, so the whole face scales from a board chip to the configurator.
 */
.agent-face {
  position: relative;
  display: inline-block;
  width: 6em;
  height: 6em;
  flex: none;
  line-height: 0;
  --rc: #64748b; /* state ring colour, overridden per state */
  --hue: 245;
}
.agent-face.af-sm { font-size: 3.3px; }
.agent-face.af-md { font-size: 7.3px; }
.agent-face.af-lg { font-size: 14px; }
.agent-face.af-xl { font-size: 20px; }

.af-head {
  position: absolute;
  inset: 0;
  border-radius: 30%;
  background: hsl(var(--hue) 62% 62%);
  animation: af-breathe 3.4s ease-in-out infinite;
}
.af-ring {
  position: absolute;
  inset: -0.55em;
  border-radius: 32%;
  border: 0.18em solid var(--rc);
  opacity: 0.85;
  transition: border-color 0.35s ease, opacity 0.35s ease;
}
.af-spin {
  position: absolute;
  inset: -0.55em;
  border-radius: 32%;
  border: 0.18em solid transparent;
  border-top-color: var(--rc);
  opacity: 0;
}
.af-eye {
  position: absolute;
  top: 0.42em;
  width: 0.13em;
  height: 0.13em;
  width: 0.8em;
  height: 0.8em;
  background: #fff;
  border-radius: 50%;
  animation: af-blink 4s infinite;
}
.af-eye-l { left: 0.27em; }
.af-eye-r { right: 0.27em; }
.af-mouth {
  position: absolute;
  bottom: 0.24em;
  left: 50%;
  transform: translateX(-50%);
  width: 1.15em;
  height: 0.2em;
  border-radius: 0.2em;
  background: rgba(255, 255, 255, 0.85);
}
.af-dots {
  position: absolute;
  top: -0.15em;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.22em;
  opacity: 0;
}
.af-dots i {
  width: 0.36em;
  height: 0.36em;
  border-radius: 50%;
  background: #6366f1;
  animation: af-bob 0.9s infinite;
}
.af-dots i:nth-child(2) { animation-delay: 0.15s; }
.af-dots i:nth-child(3) { animation-delay: 0.3s; }

/* The mouth and thinking-dots are clutter at chip size — eyes + ring carry the state there. */
.af-sm .af-mouth,
.af-sm .af-dots { display: none; }

/* ---- state: ring colour ---- */
.agent-face[data-state='idle']     { --rc: #64748b; }
.agent-face[data-state='thinking'] { --rc: #6366f1; }
.agent-face[data-state='working']  { --rc: #6366f1; }
.agent-face[data-state='review']   { --rc: #f59e0b; }
.agent-face[data-state='done']     { --rc: #14b8a6; }
.agent-face[data-state='failed']   { --rc: #ef4444; }

/* ---- state: expression ---- */
.agent-face[data-state='thinking'] .af-eye { top: 0.36em; height: 0.5em; border-radius: 40%; }
.agent-face[data-state='thinking'] .af-dots { opacity: 1; }
.agent-face[data-state='thinking'] .af-ring { animation: af-rpulse 1.4s ease-in-out infinite; }

.agent-face[data-state='working'] .af-eye { height: 0.92em; top: 0.4em; }
.agent-face[data-state='working'] .af-mouth { width: 0.6em; }
.agent-face[data-state='working'] .af-spin { opacity: 1; animation: af-spin 1.05s linear infinite; }
.agent-face[data-state='working'] .af-ring { opacity: 0.3; }

.agent-face[data-state='review'] .af-ring { animation: af-rpulse 1s ease-in-out infinite; }
.agent-face[data-state='review'] .af-eye { top: 0.34em; }

.agent-face[data-state='done'] .af-eye {
  height: 0.42em;
  border-radius: 0 0 0.8em 0.8em;
  top: 0.5em;
}
.agent-face[data-state='done'] .af-mouth {
  width: 1.4em;
  height: 0.62em;
  border-radius: 0 0 1.4em 1.4em;
  border-bottom: 0.2em solid #fff;
  background: transparent;
}
.agent-face[data-state='done'] .af-ring { animation: af-pop 0.5s ease-out; }

.agent-face[data-state='failed'] .af-head { background: hsl(var(--hue) 14% 56%); }
.agent-face[data-state='failed'] .af-eye { height: 0.28em; border-radius: 0.14em; top: 0.56em; background: #e6e0ef; }
.agent-face[data-state='failed'] .af-mouth {
  width: 0.85em;
  height: 0.55em;
  border-radius: 1.4em 1.4em 0 0;
  border-top: 0.2em solid #e6e0ef;
  background: transparent;
  bottom: 0.2em;
}

@media (prefers-reduced-motion: reduce) {
  .af-head, .af-ring, .af-spin, .af-eye, .af-dots i { animation: none !important; }
}

@keyframes af-breathe { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.045); } }
@keyframes af-blink { 0%, 92%, 100% { transform: scaleY(1); } 96% { transform: scaleY(0.1); } }
@keyframes af-spin { to { transform: rotate(360deg); } }
@keyframes af-rpulse { 0%, 100% { opacity: 0.85; } 50% { opacity: 0.3; } }
@keyframes af-pop { 0% { transform: scale(0.8); } 60% { transform: scale(1.12); } 100% { transform: scale(1); } }
@keyframes af-bob { 0%, 100% { transform: translateY(0); opacity: 0.5; } 50% { transform: translateY(-0.3em); opacity: 1; } }