* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
}
html {
  font-size: 150%;
}
body {
  display: flex;
  justify-content: center;
  align-items: center;
  background: linear-gradient(135deg, #fff 34%, #fff 59%);
  height: 100vh;
}

.container {
  border-radius: 2rem;
  padding: 2rem 1rem;
  border: 2px solid #003579;
}
.container h2 {
  width: 100%;
  font-size: 1.4rem;
  padding-bottom: 2rem;
  color: #003579;
  font-weight: bold;
  text-align: center;
}
.pass-container {
  display: flex;
}
.pass-container input {
  height: 3rem;
  width: 100%;
  border-radius: 0.5rem;
  border: none;
  margin-bottom: 2rem;
  font-size: 1rem;
  outline: none;
  box-shadow: -3px -3px 5px 0px #fff, 3px 3px 5px 0px #C1C0C1;
  background-color: #fff;
  padding-left: 2rem;
  font-weight: bold;
  margin-left: 1.5rem;
}
.pass-container i {
  position: relative;
  right: 2rem;
  top: 1rem;
  cursor: pointer;
  transition: all 0.2s ease;
  color: #003579;
}

.pass-container img:active {
  transform: scale(0.8);
}
.pass-range {
  display: flex;
  align-items: center;
  margin-left: 1.5rem;
}
.pass-range input {
  width: 100%;
  height: 0.3rem;
  accent-color: #003579;
  cursor: pointer;
}
.pass-range .range-num {
  min-width: 2rem;
  font-size: 1.2rem;
  text-align: right;
  padding-right: 1.5rem;
  color: #003579;
  padding-left: 1rem;
}
.container .pass-generate {
  width: 100%;
  height: 3rem;
  border-radius: 2rem;
  border: none;
  font-size: 1.3rem;
  margin-top: 2rem;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.1s ease;
}
.pass-generate:hover {
  background-color: #4DCAA9;
  color: #fff;
  border: 2px solid #fff;
  opacity: 0.8;
}
.pass-generate:active {
  opacity: 0.6;
  transform: scale(0.9);
}