* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100vh;
  background-color: rgb(27, 80, 80);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  padding: 0 7px;
}

.stopwatch {
  width: 290px;
  height: 100px;
  background-color: #111111d4;
  border: 2px solid #ffffff;
  border-radius: 10px;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 21px;
  font-family: "Lucida Sans", "Lucida Sans Regular", sans-serif;
  box-shadow: 0 0 9px rgb(255, 255, 148);
}

.buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 15px;
  margin-top: 20px;
}

.buttons > button {
  padding: 7px 30px;
  background-color: var(--bg-color);
  border: 2px solid #fff;
  border-top-left-radius: 10px;
  border-bottom-right-radius: 10px;
  cursor: pointer;
  color: #fff;
  font-size: 17px;
  font-weight: 600;
}

.buttons > button:active {
  transform: scale(0.95);
}

.buttons > button:hover {
  border: 2px solid #fff;
  transition: all 0.3s;
  box-shadow: 0 0 10px #fff;
}