* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font-family: "Apple SD Gothic Neo", system-ui, sans-serif;
  background: linear-gradient(180deg, #FFF7E4 0%, #FFE9CC 100%);
  color: #4a3b2a;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

.screen {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  text-align: center;
}
.hidden { display: none !important; }

/* 캐릭터 */
.avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  background: #fff;
  box-shadow: 0 6px 18px rgba(180, 120, 60, 0.25);
}
.avatar.big { width: 180px; height: 180px; margin-bottom: 28px; }
/* 말하는 중: 부드럽게 들썩 */
.avatar.talking { animation: talk 0.5s ease-in-out infinite; }
@keyframes talk {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-5px) scale(1.04); }
}

/* 시작 화면 마이크 */
.big-mic {
  width: 170px; height: 170px;
  border-radius: 50%;
  font-size: 76px;
  border: none;
  background: #ffd54f;
  box-shadow: 0 8px 0 #f0a92a;
  cursor: pointer;
}
.big-mic:active { transform: translateY(5px); box-shadow: 0 3px 0 #f0a92a; }
.big-mic.listening { animation: pulse 1s infinite; background: #ffca28; }
@keyframes pulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.08); } }

.hint { font-size: 24px; font-weight: 700; color: #7a6248; margin-top: 26px; }

/* 대답 화면 */
.word {
  font-size: 44px;
  font-weight: 900;
  margin: 4px 0 12px;
  color: #e2705f;
}
.explanation {
  font-size: 24px;
  line-height: 1.5;
  font-weight: 600;
  max-width: 560px;
  margin: 0 0 28px;
  color: #5a4a36;
}
.answer-buttons { display: flex; gap: 22px; }
.answer-buttons button {
  width: 86px; height: 86px;
  font-size: 38px;
  border-radius: 50%;
  border: none;
  background: #fff;
  box-shadow: 0 5px 0 #e7d4b5;
  cursor: pointer;
}
.answer-buttons button:active { transform: translateY(4px); box-shadow: 0 1px 0 #e7d4b5; }

/* 등록 화면 */
.register-card { display: flex; flex-direction: column; align-items: center; gap: 14px; width: 100%; max-width: 360px; }
.reg-title { font-size: 28px; font-weight: 900; margin: 8px 0 0; color: #4a3b2a; }
.reg-sub { font-size: 18px; color: #8a755c; margin: 0; }
.reg-input {
  width: 100%;
  font-size: 24px;
  text-align: center;
  padding: 16px;
  border: 3px solid #ffd54f;
  border-radius: 18px;
  outline: none;
}
.reg-save {
  width: 100%;
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  background: #f0992a;
  border: none;
  border-radius: 18px;
  padding: 18px;
  box-shadow: 0 6px 0 #d07e15;
  cursor: pointer;
}
.reg-save:active { transform: translateY(4px); box-shadow: 0 2px 0 #d07e15; }
.reg-photo {
  width: 100%;
  font-size: 15px;
  color: #a08a70;
  background: #f3ead9;
  border: none;
  border-radius: 14px;
  padding: 12px;
  margin-top: 4px;
}
.reg-photo:disabled { cursor: not-allowed; }