* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: Arial, Helvetica, sans-serif;
    background-color: #f2f2f2;
    color: #222222;
}

#container {
    width: 90%;
    max-width: 1100px;
    margin: 20px auto;
    background-color: #ffffff;
    border: 1px solid #cccccc;
}

#header {
    position: relative;
    min-height: 220px;
    padding: 25px;
    background-color: #263238;
    color: #ffffff;
    box-sizing: border-box;
}

#header h1 {
    margin: 0 0 10px 0;
}

#header-logo{
    position: absolute;
    top: 30px;
    right: 80px;
} 

#header-logo {
    position: absolute;
    top: 25px;
    right: 60px;
    width: 300px;
    height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

#header-logo img {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
}

#nav {
    background-color: #37474f;
}

#nav ul {
    margin: 0;
    padding: 0;
    list-style-type: none;
}

#nav li {
    display: inline-block;
}

#nav a {
    display: block;
    padding: 15px 20px;
    color: #ffffff;
    text-decoration: none;
}

#nav a:hover {
    background-color: #546e7a;
}

#content {
    padding: 20px;
}

.section {
    margin-bottom: 25px;
    padding: 20px;
    border: 1px solid #dddddd;
    background-color: #fafafa;
}

.section h2 {
    margin-top: 0;
}

.aktywna-sekcja {
    border: 2px solid #1565c0;
    background-color: #e3f2fd;
}

form {
    margin: 15px 0;
    padding: 15px;
    border: 1px solid #cccccc;
    background-color: #ffffff;
}

label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

input[type='text'],
textarea {
    width: 100%;
    padding: 8px;
    border: 1px solid #999999;
}

input[type='submit'],
button {
    padding: 10px 15px;
    border: 0;
    background-color: #1565c0;
    color: #ffffff;
    cursor: pointer;
}

input[type='submit']:hover,
button:hover {
    background-color: #0d47a1;
}

table {
    width: 100%;
    border-collapse: collapse;
    background-color: #ffffff;
}

th,
td {
    padding: 10px;
    border: 1px solid #cccccc;
    text-align: left;
}

th {
    background-color: #eeeeee;
}

.svg-rect {
    fill: #e3f2fd;
    stroke: #1565c0;
    stroke-width: 3;
}

.svg-circle {
    fill: #90caf9;
    stroke: #0d47a1;
    stroke-width: 3;
}

.svg-text {
    font-size: 32px;
    font-family: Arial, Helvetica, sans-serif;
    fill: #0d47a1;
}

#footer {
    padding: 15px;
    background-color: #263238;
    color: #ffffff;
    text-align: center;
}

@media screen and (max-width: 700px) {
    #nav li {
        display: block;
    }

    table {
        font-size: 12px;
    }
}