body {
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
    margin: 0;
}  
:root{
    --background-color: hsla(216, 96%, 9%, 0.807);
    --color: #fff;
    --header-background:#333;
    --answer-bg:hsla(0, 0%, 50%, 0.05);
    --answer-color: #281c1c;
    --border-color: hsla(180, 0%, 44%, 0.535);
}
header{
    margin: 0 0 15px 0;
    padding: 15px 0;
    background-color: #333;
    color: #fff; 
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-evenly;
}
header a{
    margin: 0;
    padding: 10px 15px;
    font-size: 12px;
    border: solid;
    color: #fff;
    box-shadow: 0 0 10px rgb(113, 113, 113);
    border-radius: 5px;
}
.content-title{
    text-align: center;
    margin: 10px;
}
/*OPTIONS*/
.option-container{
    display: flex;

}
.conics-option{
    position: relative;
    display: inline-block;
    margin: 0 10px;
}
.option-btn {
    background-color: transparent;
    color: white;
    padding: 10px 15px;
    font-size: 16px;
    border: solid 3px var(--border-color);
    border-radius: 10px;
    cursor: pointer;
}
.option-content{
    display: none;
    position: absolute;
    background-color: #fff;
    min-width: 160px;
    border-radius: 10px;
}
.option-content a {
    color: black;
    padding: 12px 16px;
    text-decoration: none;
    border-radius: 10px;
    box-shadow: none;
    border: solid 1px;
    display: block;
    text-align: center;
}
.option-content a:hover {
    background-color: #333;
    color: #fff;
}
.conics-option:hover .option-content {
    display: block;
}
/**/
.container{
    display: flex;
    flex-wrap: wrap;
    justify-content: space-evenly;
    width: 100%;
    margin: 20px 0;
} 

.hyperbolaGF-container {
    background-color: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgb(113, 113, 113);
    height: 100%;
}
.hyperbolaForm{
    display: flex;
    flex-wrap: wrap;
}

.hyperbolaGF-container h1 {
    margin-bottom: 20px;
    font-size: 20px;
    text-align: center;
}

form {
    display: flex;
    flex-direction: column;
}

label {
    margin: 5px 0;
}

input {
    margin-bottom: 10px;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

.hyperbolaGF-container button {
    padding: 10px;
    background-color: #333;
    color: hsl(240, 83%, 67%);
    font-weight: bold;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}
/*OPTIONS*/
select{
    width: 35px;
    height: 20px;
}
/**/
.steps h1{
    font-size: 15px; 
}
.answer{
    background-color: var(--answer-bg);
    border: 1px solid var(--border-color);
    width: 100%;
    padding: 10px;
    margin: 10px 0;
}
.graph-container ul{
    display: grid;
    grid-template-columns: repeat(3, 1fr); /* Creates 3 equal columns */
    gap: 20px; /* Gap between the columns */
    margin: 0;
    padding: 0;
    list-style-type: none; /* Remove default list styling */
} 
/*HYPERBOLA ANSWER CONTAINER*/
.hyperbolaGF-answer{
    box-shadow: 0 0 10px rgb(113, 113, 113);
    border-radius: 10px;
    padding: 20px 50px;
    width: 600px;
    background-color: #fff;
    visibility: hidden;
}
/*Flex*/
.center-container h1, .orri-container h1, .foci-container h1, .vertex-container h1{
    font-size: 15px;
    margin: 10px 0;
}
.step6{
    display: flex;
    align-items: center;
    font-weight: 600;
}
/*Graph*/
.graph{ 
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}
/*Reminder*/
.reminderContainer{
    display: none;
    padding: 20px;
    text-align: center;
    border-radius: 10px;
    border: solid;
    width: 250px;
    margin: 0 auto;
 }
 #message {
     margin-top: 10px;
     font-size: 20px;
     margin: 40px 0;
     text-align: center;
 }
 #showMessageBtn{
     margin: 30px auto;
     padding: 8px 5px;
     background-color: hsla(120, 97%, 61%, 0.658);
     border-radius: 10px;
     width: 150px;
     font-size: 15px;
 }
 .showAnswerBtn{
    padding: 5px 10px;
    background-color: green;
    margin: 10px auto;
    width: 300px;
    border: solid 1px;
    border-radius: 8px;
    color: white;
 }
 .finalAnswerBgColor{
    background-color: hsl(60, 78%, 75%);
}
.users-answer-container{
    height: 100%;
    font-size: 16px;
    display: flex;
    flex-direction: column;
    flex-wrap: wrap;
    text-align: center;
    align-items: center;
    justify-content: center;
    border: none;
    box-shadow: rgba(50, 50, 93, 0.25) 0px 2px 5px -1px, rgba(0, 0, 0, 0.3) 0px 1px 3px -1px;
    width: 400px;
    margin: 20px auto;
    padding: 20px 10px;
}
.users-answer-container h1{
    font-size: 20px;
}
.users-answer-container input{
    display: inline;
    width: 150px;
    padding: 5px 10px;
    border-radius: 4px;
    border: solid 1px;
}
.user-btn{
    margin: auto auto;
    padding: 5px 10px;
    background-color: hsla(120, 97%, 61%, 0.658);
    border: solid 1px;
    border-radius: 8px;
}
.correct{
    color: green;
}
.wrong{
    color: red;
}
.answer-each-parts{
    margin: 0 auto;
    text-align: center;
    font-size: 18px;
    border: none;
    width: 400px;
    padding: 10px 20px;
}
.users-answer-container input{
    margin: 10px 0;
}
.asymp-container h1{
    font-size: 15px;
}
.arrow-down{
    transform: rotate(90deg);
    margin: 0 10px;
    padding: 2px 5px;
    font-size: 15px;
    background-color: white;
    border-radius: 3px;
    color: black;
}
@media only screen and (max-width: 643px) {
    header a{
        padding: 10px;
        font-size: 10px;
    }
    /*Options*/
    .option-container{
        display: block;
    }
    .option-btn{
        font-size: 13px;
        width: 200px;
        margin: 10px 0; 
    }
    .option-content{
        z-index: 1;
        width: 200px;
    }
    /**/
    .content-title{
        font-size: 15px;
    }
    /*Hyperbola container*/
    .hyperbolaGF-container{
        margin: 15px 8px;
    }
    .hyperbolaGF-container input{
        text-align: center;
        margin: 5px 0;
    }
    .hyperbolaGF-container .example-equation{
        margin: 0;
        padding: 0;
        width: 100%;
    }
    /*Answer Container*/
    .hyperbolaGF-answer{
        padding: 10px 5px;
        margin: 20px 10px;
        width: 100%;
        font-size: 13px;
    }
    .steps h1{
        font-size: 13px;
    }
    .graph-container ul li{
        list-style: none;
    }
    .flex{
        display: flex;
        flex-direction: column;
    }
    .answer{
        width: 100%;
        padding: 10px 0 10px 0px;
        font-size: 13px;
        text-align: center;
    }
    .step6 math, .step7 math{
        justify-content: center;
        align-items: center;
        align-content: center;
        display: flex;
        font-weight: bold;
    }
    /*Graph*/
    .graph canvas{
        width: 100%;
    }
     /*Graph*/
     .graph #canvas{
        width: 100%;
    }
    /*Reminder*/
    .reminderContainer{
        font-size: 13px;
        margin: 0 auto;
        text-align: center;
        border-radius: 10px;
        }
        #message {
        margin-top: 10px;
        font-size: 20px;
        margin: 40px 0;
        }
        #showMessageBtn{
        margin: 30px 0;
        padding: 10px 10px;
        border-radius: 10px;
        width: 150px;
        font-size: 15px;
        }
    .users-answer-container{
        height: 100%;
        font-size: 16px;
        display: flex;
        flex-direction: column;
        flex-wrap: wrap;
        text-align: center;
        align-items: center;
        justify-content: center;
        border: none;
        box-shadow: rgba(50, 50, 93, 0.25) 0px 2px 5px -1px, rgba(0, 0, 0, 0.3) 0px 1px 3px -1px;
        width: 280px;
        margin: 20px auto;
        padding: 20px 10px;
    }
    .users-answer-container h1{
        font-size: 15px;
    }
    .users-answer-container input{
        display: inline;
        width: 150px;
        padding: 5px 10px;
        border-radius: 4px;
        border: solid 1px;
        text-align: center;
    }
    .answer-each-parts{
        font-size: 15px;
        margin: 0;
        width: 100%;
    }
    .user-btn{
        margin: auto auto;
        padding: 5px 10px;
        background-color: hsla(120, 97%, 61%, 0.658);
        border: solid 1px;
        border-radius: 8px;
    }
    .showAnswerBtn{
        width: 100%;
      }
}