@import url("https://fonts.googleapis.com/css2?family=Open+Sans:ital,wght@0,300;0,400;0,600;0,700;0,800;1,300;1,400;1,600;1,700;1,800&display=swap");
* {
  box-sizing: border-box; }

html,
body {
  padding: 0;
  margin: 0;
  height: 100%;
  background-color: #dddddd;
  font-family: "Open Sans", sans-serif;
  font-size: 14px; }

header {
  position: sticky;
  top: 0;
  z-index: 5;
  display: grid;
  grid-template-rows: 1fr;
  grid-template-columns: repeat(1, 1fr);
  align-items: center;
  justify-items: center;
  height: 64px;
  padding: 15px 20px;
  overflow: hidden;
  background: #ffdd00;
  box-shadow: 0px 2px 5px rgba(0, 0, 0, 0.3);
  font-size: 1.7em;
  font-weight: 400; }

input {
  padding: 0.5em;
  border: 1px solid #bbb;
  border-radius: 5px; }

button,
input[type="submit"],
input[type="button"] {
  padding: 10px 15px;
  background: #ffdd00;
  font-family: inherit;
  font-size: 1rem;
  font-weight: bold;
  border: 0;
  border-radius: 5px;
  box-shadow: 0px 1px 10px rgba(0, 0, 0, 0.2), 0 1px 2px 0px rgba(0, 0, 0, 0.4);
  cursor: pointer;
  transition: box-shadow 0.1s;
  border: 1px solid transparent; }
  button:focus,
  input[type="submit"]:focus,
  input[type="button"]:focus {
    outline: none;
    border: 1px solid #4795ff; }
  button:active,
  input[type="submit"]:active,
  input[type="button"]:active {
    box-shadow: 0px 0px 5px rgba(0, 0, 0, 0.2), 0 0px 0px 0px rgba(0, 0, 0, 0.4); }
  button:disabled,
  input[type="submit"]:disabled,
  input[type="button"]:disabled {
    background: #dddddd; }

.text-danger {
  color: #ff0000; }