* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Roboto", sans-serif;
}

body {
  background-color: #f1f5f8;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: white;
  padding-block: 20px;
  padding-inline: clamp(20px, 3vw, 50px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.flipH {
  color: hsl(205, 78%, 60%);
  font-size: 28px;
  font-weight: 700;
}

.flipB {
  display: flex;
  gap: clamp(20px, 3vw, 40px);
  color: hsl(209, 61%, 16%);
  font-weight: 500;
}
.flipB-1 {
  color: hsl(209, 61%, 16%);
}
.flipB-1:hover {
  color: hsl(205, 78%, 60%);
}

.main {
  display: flex;
  flex-direction: column;
  gap: 30px;
  justify-content: center;
  align-items: center;
  height: calc(100vh - 74px);
}

.black {
  background-color: hsl(209, 61%, 16%);
  color: white;
  font-size: clamp(30px, 3vw, 50px);
  padding: 1rem;
  font-weight: 700;
}

.value {
  color: hsl(205, 78%, 60%);
}

.btn {
  border: 2px solid #222;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  font-size: 1rem;
  padding: 0.75rem 1.25rem;
  background-color: white;
  cursor: pointer;
  border-radius: 0.25rem;
}

.btn:hover {
  transition: all 0.3s linear;
  background-color: black;
  color: white;
}

@media (max-width: 430px) {
  .black {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
}