.materials {
    margin: 100px 0;
}
.search-box {
    margin-top: 20px;
    margin-bottom: 50px;
}

a {
    text-decoration: none;
    color: white;
}

.title {
    color: var(--font-color);
}
.subtitle-up {
    color: var(--secondary-color);
}
.search-box input {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--secondary-color);
    border-radius: 5px;
    font-size: 16px;
}
.search-box input:focus {
    outline: none;
    box-sizing: none;
    border: 3px solid var(--secondary-color);
}
.document-list {
    list-style: none;
    padding: 0;
}
.document-item {
    background-color: var(--primary-color);
    color: #ffffff;
    padding: 15px;
    margin-bottom: 10px;
    border-radius: 5px;
    display: flex;
    align-items: center;
}
.document-item i {
    margin-right: 10px;
}

.tag-title {
    color: var(--secondary-color);
    font-weight: bold;
}
.tag-content {
    color: var(--font-color);
    font-size: 18px;
}