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

body {
    max-width: 1200px;
    margin: auto;
    padding: 0 4%;
}

a {
    text-decoration: none;
    color: rgb(0, 0, 255);
}

h1 {
    font-size: 35px;
    text-align: center;
}

h2 {
    font-size: 25px;
    text-align: center;
}

h3 {
    font-size: 20px;
    text-align: center;
}

header {
    height: 100px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

main {
    padding: 0 0 200px 0;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    gap: 10px;
}

input,
button {
    padding: 10px 20px;
    border-radius: 3px;
}

input {
    border: 1px solid rgb(180, 180, 180);
}

button {
    border: none;
    cursor: pointer;
    font-weight: bold;
    color: rgb(255, 255, 255);
    background: rgb(0, 0, 255);
}

footer {
    height: 300px;
    display: flex;
    justify-content: center;
    align-items: center;
}

footer img {
    width: 30px;
    height: 30px;
}

#logo {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
}

#logo img {
    width: 40px;
    height: 40px;
}

#logo p {
    font-size: 20px;
    font-weight: bold;
    color: rgb(100, 100, 100);
}

#pie-chart {
    max-width: 500px;
    width: 100%;
    padding: 40px 0;
}

#line-chart,
#bar-chart,
#scatter-chart {
    max-width: 800px;
    width: 100%;
    padding: 40px 0;
}