header{
    background-color: #2f2f46;
    letter-spacing: 0.1cm;
    padding: 1.5%;
    font-variant: contextual;
    font-family: "Poppins", sans-serif;
    font-size: 10pt;
    font-weight: normal;
    background-image: url('logo.jpg');
    background-repeat: no-repeat;
    background-size: 130px 130px;
    background-position: left center;
    padding-left: 150px;
    color: #eaeaea;
}
header h1{
    margin-left: 0;
    color: #eaeaea;
}
img{
    width: 300px;
    height: 300px;
}
#osa1 img {
    width: 300px;
    height: 300px;
}
footer{
    background-color: #2f2f46;
    border-top: 3px solid #4a4a62;
    text-align: center;
    position: relative;
    left: 0;
    bottom: 0;
    width: 100%;
    margin: auto;
    color: #eaeaea;
    font-family: "Poppins", sans-serif;
}
section#osa1, section#osa2, section#osa3, section#osa4 {
    width: 100%;
    padding: 20px;
    border: 2px solid #d0d0d5;
    border-radius: 12px;
    background: linear-gradient(to bottom right, #ffffff, #f6f6f8);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    font-family: "Poppins", sans-serif;
    image-resolution: revert;
}

#osa1 h2, #osa2 h2, #osa3 h2, #osa4 h2 {
    text-align: center;
    font-variant: contextual;
    font-family: "Poppins", sans-serif;
    color: #2f2f46;
}

nav ul {
    list-style-type: none;
    margin: 0;
    padding: 10px;
    background-color: #3b3b55;
    display: flex;
    justify-content: center;
    gap: 15px;
}

nav ul li {
    border-radius: 10px;
    background: linear-gradient(to bottom right, #5a5a75, #2f2f46);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

nav ul li:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

nav ul li a {
    display: block;
    padding: 10px 18px;
    color: #eaeaea;
    font-weight: bold;
    text-align: center;
    text-decoration: none;
    font-family: "Poppins", sans-serif;
}


#osa1 {
    position: relative;
}

#pilt {
    display: block;
    margin: 10px auto;
    width: 300px;
    height: 300px;
    border: 2px solid #2f2f46;
    border-radius: 8px;
    cursor: move;
}

#jquerytbl {
    width: 100%;
    border-collapse: collapse;
    margin: 20px auto;
    text-align: center;
}

#jquerytbl th {
    background: #3b3b55;
    color: #eaeaea;
    padding: 10px;
}

#jquerytbl td {
    background: #f6f6f8;
    padding: 10px;
    border: 1px solid #d0d0d5;
}

#jquerytbl input[type="button"],
section#osa1 input[type="button"],
section#osa2 input[type="button"] {
    margin: 5px;
    padding: 10px 15px;
    font-family: "Poppins", sans-serif;
    font-size: 14px;
    font-weight: bold;
    color: #eaeaea;
    background: linear-gradient(to bottom right, #5a5a75, #2f2f46);
    border: none;
    border-radius: 6px;
    cursor: pointer;
}

#jquerytbl input[type="button"]:hover,
section#osa1 input[type="button"]:hover,
section#osa2 input[type="button"]:hover {
    background: linear-gradient(to bottom right, #7a7a9a, #3b3b55);
}

#kords {
    margin-top: 10px;
    font-size: 16px;
    color: #2f2f46;
    font-weight: bold;
    text-align: center;
}

#osa2 {
    text-align: center;
    margin-top: 20px;
}

#toggleNav {
    margin: 10px 0;
    padding: 8px 15px;
    font-family: "Poppins", sans-serif;
    font-size: 14px;
    font-weight: bold;
    color: #eaeaea;
    background: linear-gradient(to bottom right, #5a5a75, #2f2f46);
    border: none;
    border-radius: 6px;
    cursor: pointer;
}

#toggleNav:hover {
    background: linear-gradient(to bottom right, #7a7a9a, #3b3b55);
}

#osa3 {
    text-align: center;
}