@import url("https://fonts.googleapis.com/css?family=Open+Sans:400,700&display=swap");
:root {
  --primary-color: rgb(182, 197, 201);
}

* {
  box-sizing: border-box;
  outline: 0;
}
.dark-mode {
  background-color: black;
  color: white;
}
.container {
  max-width: 640px;
  margin: 50px auto;
  padding: 20px;
  border: 3px dotted;
  border-radius: 10px;
}
.clock {
  justify-content: center;
  display: flex;
  font-size: 3em;
}
.buttons {
  display: flex;
  justify-content: space-evenly;
}
.buttons button {
  background-color: #fff;
  border-radius: 10px;
  width: 10em;
  height: 3em;
  font-weight: 700;
}
.stopped-button {
  color: red;
}
.dark-mode-button {
  margin: 50px 0 0 30px;
  width: 5vw;
  height: 5vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* button ~ toggle */
.toggle > label {
  position: relative;
  display: block;
  height: 20px;
  width: 44px;
  background: #898989;
  border-radius: 100px;
  cursor: pointer;
  transition: all 0.3s ease;
}
.toggle > label:after {
  position: absolute;
  left: -2px;
  top: -3px;
  display: block;
  width: 26px;
  height: 26px;
  border-radius: 100px;
  background: #fff;
  box-shadow: 0px 3px 3px rgba(0, 0, 0, 0.05);
  content: "";
  transition: all 0.3s ease;
}
.toggle > label:active:after {
  transform: scale(1.15, 0.85);
}
.toggle > input:checked ~ label {
  background: #6fbeb5;
}
.toggle > input:checked ~ label:after {
  left: 20px;
  background: #179588;
}

.toggle {
  margin-bottom: 40px;
}
.toggle > input {
  display: none;
}
/* */

h1 {
  display: flex;
  justify-content: center;
}

body {
  margin: 0;
  padding: 0;
  background: var(--primary-color);
  font-family: "Open sans", sans-serif;
  font-size: 1.3em;
  line-height: 1.5em;
}

form input,
form label,
form button {
  display: block;
  width: 100%;
  margin-bottom: 10px;
}