:root {
    --primary-color: #596869;
    --secondary-color:  #6C8976;
    --sub-color: #79B791;
    --border-color: #ABD1B5;
    --extra-color: #FFFFFF;
    --small-text: #E6EFE6;
    --big-font : "Roboto";
    --small-font : 'Times New Roman', Times, serif;
}

* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}

header {
    display: grid;
    grid-template-columns: 1fr 1fr;
    background-color: var(--secondary-color);
    border-bottom-left-radius: 7px;
    border-bottom-right-radius: 7px;
}

header img {
    width: 120px;
    height: auto;
}

header nav {
    display: flex;
    justify-content:space-between;
    margin: 10px;
    padding: 10px;
}

header nav a:hover {
    background-color: var(--border-color);
    color: var(--secondary-color);
    transform: scale(1.10);
}

.nav a{
    color: var(--extra-color);
    text-decoration: none;
    font-family: var(--big-font);
    margin: 5px;
    padding: 7px;
    border: var(--border-color) solid;
    border-radius: 10px;
    align-self: center;
}

main {
    display: flex;
    flex-flow: column;
    align-items: center;
}

main h1 {
    font-family: var(--big-font);
    color: var(--primary-color);
    margin: 10px;
    padding: 10px;
}

.instructions {
  margin: 10px;
  padding: 10px;
  font-size: 18px;
  color: var(--primary-color);
  font-family: var(--small-font);
}

ol {
    list-style: none;
    padding: 0;
}

.draggable-container {
  margin: 10px;
  display: flex;
  justify-content: center;
  gap: 10px;
}

.item {
  width: 100px;
  height: 100px;
  border:var(--border-color) 2px solid ;
  cursor: move;
}

.drop-zone {
  margin: 20px auto;
  min-height: 120px;
  border: 2px dashed #999;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  padding: 10px;
  background-color: #fff;
}

.drop-zone.over {
  border-color: #333;
}

.drop-item {
  width: 100px;
  height: 100px;
  margin: 5px;
}

.hidden {
  display: none;
}

.congrats {
  font-size: 24px;
  font-weight: bold;
  color: green;
  margin-top: 20px;
}

footer {
    background-image: linear-gradient(to right, var(--border-color), var(--primary-color));
    text-align: center;
    padding: 20px;
    border-top-left-radius: 5px;
    border-top-right-radius: 5px;
    margin-top: 65px;
}

footer a {
    color: var(--extra-color);
}

footer p {
    color: var(--extra-color);
    margin: 5px;
    font-family: var(--small-font);
}