/* ---------- RESET ---------- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

/* ---------- HEADER ---------- */
header {
    background-color: gold;
    color: black;
    text-align: center;
    padding: 20px;
    border: 4px solid grey;
}

header h1 {
    margin-bottom: 8px;
}

header p {
    margin-bottom: 10px;
}

/* ---------- BACK BUTTON ---------- */
#go-back {
    height: 45px;
    padding: 8px 15px;
    font-weight: bold;
    border: 2px solid blue;
    background-color: aquamarine;
    color: black;
    border-radius: 6px;
    position: fixed;
    top: 10px;
    right: 10px;
    cursor: pointer;
}

#go-back:hover {
    background-color: #7fffd4;
}

/* ---------- VOCABULARY LIST ---------- */
.vocabulary-lists {
    background-image: url("vocabulary.png");
    background-size: cover;
    border: 3px solid black;
    padding: 20px;
    margin: 20px;
    min-height: 600px;
}

.vocabulary-lists h2 {
    text-align: center;
    margin-bottom: 15px;
}

.vocabulary-lists ul {
    max-width: 800px;
    border: 2px solid grey;
    margin: 0 auto;
}

.vocabulary-lists li {
    margin: 10px 0;
    line-height: 1.5;
}

/* ---------- PRACTICE RESOURCES ---------- */
.vocabulary-practice-resources {
    background-color: lightyellow;
    border: 3px solid black;
    text-align: center;
    padding: 20px;
    margin: 20px;
}

.vocabulary-practice-resources a {
    display: inline-block;
    margin-top: 10px;
    padding: 12px 22px;
    border: 2px solid blue;
    background-color: orange;
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-weight: bold;
}

.vocabulary-practice-resources a:hover {
    background-color: darkorange;
}