.word-captcha-wrap {
  background: #f9f9f9;
  border: 1px solid #b9b9b9;
  border-radius: 3px;
  box-shadow: 0 2px 8px rgba(0,0,0,.07);
  margin: 0 auto;
  max-width: 465px;
  padding: 14px 18px 20px;
  width: 100%;
}

.wc-instruction { color: #242424; font-size: 15px; margin-bottom: 6px; }

.wc-canvas-wrap {
  background: #fff;
  border: 1px solid #ccc;
  border-radius: 2px;
  margin-bottom: 7px;
  overflow: hidden;
  position: relative;
}

#wavy-canvas { display: block; width: 100%; height: 150px; }

.wc-refresh {
  border-radius: 50%;
  bottom: 4px;
  cursor: pointer;
  height: 29px;
  padding: 4px;
  position: absolute;
  right: 4px;
  width: 29px;
  z-index: 10;
  user-select: none;
  -webkit-user-drag: none;
}

.wc-refresh img { pointer-events: none; width: 100%; }

.wc-speaker {
  bottom: 6px;
  cursor: pointer;
  height: 22px;
  left: 6px;
  position: absolute;
  width: 22px;
  user-select: none;
  -webkit-user-drag: none;
}

.wc-input-row {
  display: grid;
  gap: 7px;
  grid-template-columns: 1fr auto;
  margin-top: 2px;
}

.wc-input {
  background: #fff;
  border: 1px solid #ccc;
  border-radius: 3px;
  font-family: 'Roboto', sans-serif;
  font-size: 17px;
  height: 42px;
  outline: none;
  padding: 0 10px;
  width: 100%;
}

.wc-input:focus { border-color: #4285f4; box-shadow: 0 0 0 2px rgba(66,133,244,.2); }
.wc-input.wrong { border-color: #ea4335; box-shadow: 0 0 0 2px rgba(234,67,53,.2); }

.wc-submit {
  background: #4285f4;
  border: 1px solid #4285f4;
  border-radius: 3px;
  color: #fff;
  cursor: pointer;
  font-family: 'Roboto', sans-serif;
  font-size: 16px;
  height: 42px;
  width: 100px;
}

.wc-submit:hover { background: #3367d6; }

.wc-submit.wrong {
  animation: wrongShake .25s ease-in-out 3;
  pointer-events: none;
}

.wc-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}