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

:root {
  --dark-bg-color: rgb(2, 1, 10);
  --light-text-color: rgb(255, 252, 242);
  --lapBtn-bg-color: rgba(64, 61, 57, 0.5);
  --lapBtn-text-color: rgb(139, 140, 137);
  --startBtn-bg-color: rgba(0, 100, 0, 0.3);
  --startBtn-text-color: rgb(56, 176, 0);
}

html {
  font-size: 62.5%;
}

body {
  background-color: var(--dark-bg-color);
  color: var(--light-text-color);
  font-family: "Open Sans", sans-serif;
  min-height: 100vh;
  display: grid;
  place-items: center;
}

.container {
  width: 80%;
  max-width: 800px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.js-timeText {
  font-size: 8rem;
  margin-bottom: 6rem;
}

button {
  display: inline-block;
  border: none;
  font-size: 2.4rem;
  width: 10rem;
  height: 10rem;
  border-radius: 50%;
  box-shadow: 0 0 12px currentColor;
  cursor: pointer;
}

.js-lapBtn {
  background-color: var(--lapBtn-bg-color);
  color: var(--lapBtn-text-color);
  transition: all 0.25s;
}

.btnsContainer {
  width: 100%;
  display: flex;
  justify-content: space-between;
  margin-bottom: 4rem;
}

.js-startBtn {
  background-color: var(--startBtn-bg-color);
  color: var(--startBtn-text-color);
  transition: all 0.25s;
}

.js-startBtn:hover,
.js-lapBtn:hover {
  transform: translate(0, -4px);
  border: 3px currentColor dotted;
}