:root {
  --accent: #a7ffeb;
  --secondary: #00ffb2;
  --text-color: #39ff14;
  --background: #1a2327;
}
* {
  background-color: var(--background);
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Bitcount Grid Double", system-ui;
  font-optical-sizing: auto;
  font-weight: 400;
  font-style: normal;
  font-variation-settings: "slnt" 0, "CRSV" 0.5, "ELSH" 0, "ELXP" 0;
}

body {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  width: 100vw;
}
/* todo Header */
.header-text {
  text-align: center;
  align-items: center;
  justify-content: center;
  margin: 30px;
  font-size: 3rem;
  color: var(--text-color);
}

/* todo Main content */
.timer-display {
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  width: 200px;
  height: 200px;
  font-size: 3rem;
  position: relative;
  margin: 0 auto;
  border-radius: 50%;
  box-shadow: 20px 20px 42px #0e1021, -20px -20px 42px #1c2244;
  color: var(--text-color);
  background: #151932;
  font-family: "poppins", sans-serif;
}

.timer-display::before {
  content: "";
  position: absolute;
  border: 10px solid var(--accent);
  border-radius: 50%;
  width: 10rem;
  height: 10rem;
}

/* todo Control Button */
.control-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  margin: 30px;
  gap: 10px;
}

.start-btn {
  font-size: 1rem;
  padding: 10px 20px;
  color: var(--text-color);
  border-radius: 20px;
  border: 3px solid var(--secondary);
  background: none;
  cursor: pointer;
}

.stop-btn {
  font-size: 1rem;
  padding: 10px 20px;
  color: var(--text-color);
  border-radius: 20px;
  border: 3px solid var(--secondary);
  background: none;
  cursor: pointer;
}

.reset-btn {
  font-size: 1rem;
  padding: 10px 20px;
  color: var(--text-color);
  border-radius: 20px;
  border: 3px solid var(--secondary);
  background: none;
  cursor: pointer;
}