*{
    padding: 0;
    margin: 0;
}
a{
    color: #fff;
}
body{
    display: flex;
    flex-direction: column;
    align-items: center;
}
header{
    width: 100vw;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: fixed;
    top: 0px;
    left: 0px;
    box-shadow: 0px 0px 10px #000;
    background-color: #fff;
    z-index: 10000;
}
header .header{
    width: 90%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.logo{
    font-size: 35px;
    cursor: pointer;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: #008000;
}
.logo span{
    color: #fff;
    -webkit-text-stroke: 2px black;
    font-weight: 900;
    font-size: 40px;
    transition: .4s;
}
.logo span:hover{
    font-size: 35px;
}
.menu{
    display: flex;
    align-items: center;
    justify-content: space-between;

}
.menu a{
    font-size: 25px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: #008000;
    text-decoration: none;
    font-weight: 600;
    -webkit-text-stroke: 1px black;
    margin:0px 10px ;
}
.mobile-menu{
    width: 40px;
    height: 50px;
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.mobile-menu div{
    width: 100%;
    height: 5px;
    background-color: #008000;
    margin: 5px 0;
    border-radius: 10px;
}
.mobile-container{
    width: 100%;
    height: 350px;
    position: fixed;
    top: 70px;
    left: 0px;
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: #008000;
    border-radius: 10px;
    box-shadow: 0px 5px 20px #000;
}
.mobile-container a{
    width: 90%;
    background-color: #fff;
    color: #008000;
    font-size: 25px;
    text-decoration: none;
    margin-top: 30px;
    padding: 10px 5px;
    border-radius: 10px;
    font-weight: bold;
    letter-spacing: 2px;
}
.mobile-container a:active{
    background-color: #008000;
    color: #fff;
    border: 2px solid #fff;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
}
label{
    width: 90%;
    display: block;
    color: #008000;
    font-family: 'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
    font-size: 18px;
    margin-top: 20px;
    font-weight: bold;
    max-width: 450px;
}
button{
    outline: none;
}
.content-container{
    width: 90%;
    min-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.operators{
    width: 90%;
    max-width: 600px;
    margin-top: 30px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    margin-top: 200px;
    box-shadow: 0px 0px 15px #000;
    border-radius: 15px;
    padding: 30px 0px;
}
.operators select, .operators input{
    width: 90%;
    max-width: 450px;
    border: none;
    margin: 5px 0px;
    background: transparent;
    height: 40px;
    border-bottom: 2px solid #008000;
    outline: none;
    font-weight: bold;
    font-size: 18px;
    padding: 0px 10px;
}
.multiple-inputs{
    width: 100%;
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
#error-msg{
    font-size: 22px;
    color: red;
    font-family: 'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
}
#generate-numbers{
    width: 200px;
    height: 40px;
    background: #008000;
    border-radius: 10px;
    border: 2px solid #008000;
    color: #fff;
    font-size:18px;
    margin-top: 20px;
    font-weight: bold;
}
.my-results{
    width: 90%;
    max-width: 900px;
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    margin: 20px 0px;
    background: #000;
    font-family: 'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
}
#results-container{
    display: none;
    width: 90%;
    max-width: 800px;
    word-wrap: break-word;
    padding: 20px 0px;
    color: #fff;
}
#copy-button{
    display: none;
    text-align: center;
    padding: 5px 10px;
    background: #008000;
    border-radius: 5px;
    color: #fff;
    font-weight: bold;
    border: none;
    margin-bottom: 20px;
    box-shadow: 0px 0px 5px #000;
}
 /* New About Section Styles */
#about-section {
width: 90%;
max-width: 1000px;
margin-top: 150px;
padding: 20px;
background: #f4f4f4;
border-radius: 15px;
box-shadow: 0px 0px 15px #000;
}
#about-section h1 {
    font-size: 40px;
    color: #008000;
    margin-bottom: 20px;
    text-align: center;
}
#about-section p {
    font-size: 18px;
    line-height: 1.6;
    color: #333;
    margin-bottom: 20px;
}
#about-section h2 {
    font-size: 30px;
    color: #008000;
    margin-bottom: 15px;
}
li{
    margin-left: 20px;
    margin-bottom: 20px;
}

  /* Explore Section Styles */
  #explore-section {
    width: 90%;
    max-width: 800px;
    margin-top: 150px;
    padding: 20px;
    background: #f4f4f4;
    border-radius: 15px;
    box-shadow: 0px 0px 15px #000;
}
#explore-section h1 {
    font-size: 40px;
    color: #008000;
    margin-bottom: 20px;
    text-align: center;
}
#explore-section h2 {
    font-size: 30px;
    color: #008000;
    margin-bottom: 15px;
}
#explore-section p {
    font-size: 18px;
    line-height: 1.6;
    color: #333;
    margin-bottom: 20px;
}
.feature-card {
    background: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}
.feature-card h3 {
    font-size: 24px;
    color: #008000;
    margin-bottom: 10px;
}
.feature-card p {
    font-size: 16px;
    color: #555;
}
.feature-card a {
    display: inline-block;
    margin-top: 10px;
    padding: 10px 20px;
    background: #008000;
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
}
.feature-card a:hover {
    background: #006400;
}
.example {
    background: #e8f5e9;
    padding: 10px;
    border-radius: 5px;
    margin-top: 10px;
}
.example p {
    font-size: 14px;
    color: #333;
    margin: 5px 0;
}
footer {
    background: #333;
    color: #fff;
    text-align: center;
    padding: 10px 0;
    margin-top: 20px;
    width: 100%;
    
}
footer p{
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    font-size: 14px;
}
.developer{
    font-size: 16px;
    font-family: 'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
}
.developer{
    color: #fff;
}
@media only screen and (max-width: 450PX){
    .logo{
        font-size: 25px;
    }
    .logo span{
        font-size: 30px;
    }
}
@media only screen and (max-width: 780PX){
    header{
        height: 70px;
    }
    .mobile-menu{
        display: flex;
    }
    .menu{
        display: none;
    }
}