:root {
  color-scheme: dark;
  --bg-0: #14101f;
  --bg-1: #2a2348;
  --ink: #f6f1e7;
  --muted: #c9c0d6;
  --gold: #f2c14e;
  --skin: #ffd7b5;
  --blush: #f2a7a0;
  --line: #2a2340;
  --talk: #e07a5f;
  --tuft: #f0b48a;
  --space: 1.25rem;
  font-family: system-ui, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100dvh;
  color: var(--ink);
  background:
    radial-gradient(circle at 50% 28%, var(--bg-1) 0%, var(--bg-0) 58%);
}

main {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: var(--space);
  text-align: center;
}

.mark {
  margin: 0;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 0.75rem;
  color: var(--gold);
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 6vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
}

.face {
  position: relative;
  width: min(72vw, 22rem);
  margin: 0.5rem 0;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}

.face:focus { outline: none; }

.face:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 8px;
}

.face svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}

.shadow { fill: rgba(0, 0, 0, 0.28); }

.head { fill: var(--skin); }

.tuft { fill: var(--tuft); }

.blush { fill: var(--blush); opacity: 0.85; }

.eye-open { fill: #fffdf8; }

.pupil {
  fill: var(--line);
  transform-box: fill-box;
  transform-origin: center;
}

.eye-shut {
  fill: none;
  stroke: var(--line);
  stroke-width: 4;
  stroke-linecap: round;
  opacity: 0;
}

.smile {
  fill: none;
  stroke: var(--talk);
  stroke-width: 5;
  stroke-linecap: round;
}

.talk {
  fill: var(--talk);
  opacity: 0;
  transform-box: fill-box;
  transform-origin: center;
}

.zzz {
  fill: var(--gold);
  font: 700 22px system-ui, "Segoe UI", sans-serif;
  opacity: 0;
}

.face[data-state="asleep"] .eye-open,
.face[data-state="asleep"] .pupil { opacity: 0; }

.face[data-state="asleep"] .eye-shut,
.face[data-state="asleep"] .zzz { opacity: 1; }

.face[data-state="asleep"] svg { animation: breath 3.6s ease-in-out infinite; }

.face[data-state="listening"] .smile,
.face[data-state="speaking"] .smile { opacity: 0; }

.face[data-state="listening"] .talk,
.face[data-state="speaking"] .talk { opacity: 1; }

.face[data-state="speaking"] .talk { animation: talk 0.28s ease-in-out infinite alternate; }

.face[data-state="thinking"] .pupil { transform: translateY(-3px); }

.face[data-state="listening"]::after {
  content: "";
  position: absolute;
  inset: 8%;
  border: 3px solid var(--gold);
  border-radius: 50%;
  animation: pulse 1.1s ease-out infinite;
  pointer-events: none;
}

.status {
  min-height: 3.2rem;
  max-width: 36rem;
  margin: 0;
  font-size: clamp(1.05rem, 2.6vw, 1.35rem);
  line-height: 1.4;
}

.hint {
  max-width: 34rem;
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.45;
}

@keyframes breath {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(3px) scale(1.02); }
}

@keyframes talk {
  from { transform: scaleY(0.55); }
  to { transform: scaleY(1); }
}

@keyframes pulse {
  from { opacity: 0.7; transform: scale(0.96); }
  to { opacity: 0; transform: scale(1.08); }
}

@media (prefers-reduced-motion: reduce) {
  .face[data-state="asleep"] svg,
  .face[data-state="speaking"] .talk,
  .face[data-state="listening"]::after { animation: none; }
}

@media (min-width: 800px) {
  main { gap: 1rem; }
  .status { min-height: 2.6rem; }
}