/* mosaic-reset: uiverse 컴포넌트 공통 전제 (box-sizing + 기본 sans-serif) */
*, *::before, *::after { box-sizing: border-box; }
:where(body) { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; }

/* 단독 동작용 무대 — 밝은 배경 + 중앙 정렬 */
html, body { margin: 0; height: 100%; }
body {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background: #e8e8e8;
}

/* ---- 컴포넌트 본체 (uiverse: thin-duck-22) ---- */
.Btn {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  width: 45px;
  height: 45px;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition-duration: .3s;
  box-shadow: 2px 2px 10px rgba(0, 0, 0, 0.199);
  background-color: rgb(255, 65, 65);
}

/* plus sign */
.sign {
  width: 100%;
  transition-duration: .3s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sign svg {
  width: 17px;
}

.sign svg path {
  fill: white;
}
/* text */
.text {
  position: absolute;
  right: 0%;
  width: 0%;
  opacity: 0;
  color: white;
  font-size: 1.2em;
  font-weight: 600;
  transition-duration: .3s;
}
/* hover effect on button width */
.Btn:hover {
  width: 125px;
  border-radius: 40px;
  transition-duration: .3s;
}

.Btn:hover .sign {
  width: 30%;
  transition-duration: .3s;
  padding-left: 20px;
}
/* hover effect button's text */
.Btn:hover .text {
  opacity: 1;
  width: 70%;
  transition-duration: .3s;
  padding-right: 10px;
}
/* button click effect*/
.Btn:active {
  transform: translate(2px, 2px);
}