*{
    box-sizing: border-box;
    margin: 0;
}

body{
    background: hsla(245, 75%, 80%, 0.25);
    color:#070707;
    font-size: 1rem;
    font-family: "Poppins", sans-serif;
    font-weight: 400;
    font-style: normal;
}

.board-title{
    text-align: center;
    color: rgb(255, 7, 7);
    font-size: 1.5rem;
    margin: 1rem;
    text-shadow: 0px 0px 7px green;
    font-weight: bold;
}
.main{
    display: flex;
    flex-direction: column;
    padding: 2rem;
    margin: 0 auto;
    position: relative;
}
main{
    display: grid;
    margin: 0 auto;
    max-width: 70%;
    background-image: url(/imgs/myboard_svg.svg);
    background-repeat:no-repeat;
    background-position:center;
    background-attachment:scroll;
    background-color: rgb(141, 202, 255);
    width: 650px;
    position: relative;
    padding: 1rem;
    grid-template-columns: 50% 26%;
    grid-template-rows: 45px 299px;
    align-items: center;
    justify-content: center;
    cursor: url(/imgs/chalk.png), auto;
    border-radius: 15px;
}

/*Popup*/
.popup{
    max-width:400px;
    width: 400px;
    min-width: 300px;
    background: #fff;
    -webkit-border-radius: 6px;
    -moz-border-radius: 6px;
    border-radius: 6px;
    position: absolute;
    top:0;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.1);
    text-align: center;
    padding: 0 30px 60px;
    color: hsl(126, 100%, 29%);
    visibility: hidden;
    transition: all 0.2s ease-in-out;
    z-index: 1;
    box-shadow: 5px 5px 2px hsl(0, 0%, 45%, 0.7);
  }
  
  .open-popup{
    visibility: visible;
    top: 50%;
    transform: translate(-50%, -50%) scale(1);
  }
  
  .popup img{
    max-width: 100px;
    margin-top: -50px;
    -webkit-border-radius: 50%;
    -moz-border-radius: 50%;
    border-radius: 50%;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    background-color: hsl(126, 100%, 42%);
  }
  
  .popup h2{
    font-size: 1.7rem;
    font-weight: 500;
    margin: 30px 0 10px;
    text-shadow: none;
  }
  
  .popup button{
    width: 100%;
    margin-top: 50px;
    padding: 10px 0;
    background-color:hsl(126, 100%, 46%);
    color: #fff;
    border: 0;
    outline: none;
    font-size: 1.2rem;
    border-radius: 4px;
    box-shadow: 5px 5px 2px hsl(0, 0%, 45%, 0.7);
    cursor: pointer;
  }
/*Popup*/

/* Section 1 */

/* Animations Functions */
#reserve{
    position: absolute;
    background-color: grey;
    z-index: -1;
    transition: .4s;
    
}
.iconslash{
    position: absolute;
    color: red;
    display: grid;
    grid-column: 2;
    left: 1.7rem;
    margin: 0 auto;
    font-size: 2.99rem;
    rotate: 45deg;
    z-index: -1;
    transition: .7s;
}
.activate{
    position: absolute;
}
.minusone{
    display: grid;
    margin: 0 auto;
    left: 2.7rem;
    font-size: 1.2rem;
    position: absolute;
    color: rgb(136, 0, 0);
    z-index: -1;
    animation: nada .4s ease alternate;
    opacity: 0;
}
@keyframes nada {
    0% {opacity: 1;
    transform: scale(0.45);}
    50% {opacity: 1;
        z-index:1;}
    100% {opacity: 0;
    z-index: 1;}
}
/* Animations Functions */

.boardTitle{
    display: grid;
    grid-column: 1;
    grid-row: 1;
    cursor:default;
}
.section1{
    margin: 0 auto;
    display: grid;
    row-gap: .2rem;
    grid-template-columns: repeat(3, 4.2rem);
    grid-template-rows: 1.1rem 2rem 2.99rem repeat(2, 2.99rem);
    grid-column: 1;
    grid-row: 2;
}

.carry_over{
    grid-column: 2;
    grid-row:1;
    display: grid;
    grid-template-columns: repeat(4, 4.2rem);
    grid-row: repeat(2, 2rem);
    position: relative;
}
.borrow_lb{
    display: grid;
    grid-column: 1;
    grid-row: 1;
    color: grey;
}
#borrow_btn{
    border-radius: 10px;
    cursor:not-allowed;
    display: grid;
    grid-column: 1;
    grid-row: 2;
    background-color:grey;
}
.ad{
    grid-column: 2;
    grid-row: 3;
    display: grid;
    grid-template-columns: repeat(3, 4.2rem);
    row-gap: .2rem;
    position: relative;
    align-items: center;
}
.subtractionSign{
    display: grid;
    grid-row: 4;
    grid-column: 1;
    align-items: center;
    grid-template-columns: 4.2rem repeat(3, 4.2rem);
    justify-items: end;
}
.bordertop{
    border-top: 2px solid rgb(7, 7, 7);
    width: calc(4.2rem * 2);
    grid-column: 2;
    display: grid;
    grid-template-columns: repeat(4, 4.2rem);
    grid-row: 5;
}

.carryOver{
    border-radius: 50%;
    height: 2.2rem;
    width: 2.2rem;
    border: none;
    background-color: #4e4e4e86;
    text-align: center;
    outline: none;
    cursor: url(/imgs/chalk.png), auto;
    display: grid;
    font-size: 1.5rem;
    grid-row: 2;
    font-weight: bolder;
    margin: 0 auto;
    transition: .7s;
}
.borrowBtn{
    height: 2.2rem;
    width: 2.2rem;
    border: none;
    display: grid;
    font-size: 1.5rem;
    grid-row: 2;
    margin: 0 auto;
    transition: .4s;
}
.subtSign{
    font-size: 42px;
    color: red;
    font-family:'Courier New', Courier, monospace;
    font-weight: bolder;
}
.inputs{
    text-align: center;
    height: 2.9rem;
    width: 4rem;
    margin: 0 auto;
    color: rgb(7, 7, 7);
    border-radius: 10px;
    font-weight: bold;
    font-size: 29px;
    outline: none;
    border: none;
    background-color: #eae5ffb3;
}

.section2{
    gap: .8rem;
    display: grid;
    grid-column: 2;
    grid-row: 2;
}

.section4{
    grid-column: 2;
    grid-row: 1;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(2, 1fr);
    justify-items: center;
    padding: 1.8rem;
}
.labels{
    display: grid;
    font-size: 1rem;
    font-weight: bolder;
    align-items: center;
    align-content: center;
    grid-row: 1;

}
.arrows{
    display: grid;
    width: 42px;
    grid-row: 2;
    justify-content: center;
    height: 1.6rem;
    border-radius: 12px;
    border: none;
    cursor: pointer;
    background-color: rgb(170, 251, 170);
}


/* Section 1 */
.paragraph_text {
    padding: 1px 0;
    max-width: 1024px;
    margin-top: 20px;
    margin: 2rem auto;
    font-size: 1.25rem;
    border-bottom: 1px solid grey;
    text-align: left;
    line-height: 1.5;
    display: flex;
    align-items: center;
  }
  .head_text {
    margin: 1rem;
  }
  .paragraph_text p {
    text-wrap: balance;
  }
  .head_subtitle {
    text-align: left;
    font-size: 2.5rem;
    margin-bottom: 1.1rem;
    color: green;
    line-height: 1.25;
  }
  .head_subtitle2 {
    text-align: left;
    margin-bottom: 1.1rem;
  }
  .image-section {
    width: auto;
    background-color: #98a8f8;
    box-shadow: 7px 5px 2px rgba(0, 255, 38, 0.711);
    margin: 1rem 0;
    border-radius: 10px;
    display: flex;
    padding: 1.5rem;
  }
  .head_section_li_n {
    line-height: 1.1;
  }
  .head_section_li_span {
    color: green;
    font-weight: 700;
  }
.test_section {
    padding: 2rem;
    background-color: #98a8f8;
    box-shadow: 7px 5px 2px rgba(0, 255, 38, 0.711);
    border-radius: 10px;
    display: flex;
    align-items: center;
    border: 1px solid grey;
    margin: 1rem auto;
    max-width: 750px;
  }
  .test_btn {
    height: 100px;
    width: 250px;
    font-size: 2rem;
    font-weight: 900;
    font-family: cursive;
    border-radius: 18px;
    background-color: #b4ffff;
    letter-spacing: 1px;
    cursor: pointer;
  }
  .test_btn:hover {
    transform: scale(1.1);
  }
  .test_lb {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.25;
    text-align: left;
    color: white;
  }
/* Section 1 */

/* Section 2 */
.section_2{
    max-width: 1440px;
    margin: 0 auto;
    overflow: hidden;
    /* margin-top: 1rem;
    padding-top: 1rem; */
    padding-bottom: 1rem;

    text-align: center;
    display: flex;
    justify-content: center;
}  
.row{
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 25px;
    margin-top: 1rem;
}
.column-title h2{
    margin: 1rem 0rem;
    font-size: 1.75rem;
    font-weight: 700;
}
.row #column1, 
.row #column2,
.row #column3{
    width: 325px;
    height: auto;
    padding: 10px 0;
    border-radius: 10px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    background-color: rgba(100, 250, 250, 0.252);
    box-shadow: 5px 5px 5px grey;
    gap: 7px;
}
.train_button {
    text-decoration: none;
    text-align: center;
    display: inline-block;
    font-size: 1.25rem;
    font-weight: 900;
    letter-spacing: 1px;
    background-color: #4CAF50; 
    color: white; 
    border: 2px solid #4CAF50;
    border-radius: 10px;
    padding: 16px 32px;
    margin: 4px  2px 1rem 2px;
    -webkit-transition-duration: 0.2s; /* Safari */
    transition-duration: 0.2s;
    cursor: pointer;
    margin-top: auto;
    align-self: center;
    box-shadow: 0px 0px 10px grey;
}
.train_button:hover {
    background-color: rgb(255, 255, 255);
    color: #4CAF50;
    transform: scale(1.1);
}
.img_boards{
    width: 100%;
    border-radius: 10px;
    object-fit: cover;
}
.column_paragraph_for_columns{
    text-align: left;
    padding: 1rem 1rem;
}
.more{
    border-top: 1px solid grey;
    margin: .5rem;
    font-size: 1.5rem;
    text-align: center;
    font-weight: bold;
    padding:1rem;
    color: rgb(255, 7, 7);
    text-shadow: 0px 0px 7px grey;
}
/* Section 2 */


/* Buttons Functions */
.buttons{
    border-radius: 15px;
    width: 80px;
    height: 45px;
    align-content: center;
    justify-content: center;
    display: grid;
    font-size: 1rem;
    border: none;
    padding: 1rem;
    margin: 0 auto;
    font-weight: bolder;
    cursor: pointer;
}
#tryit_btn:hover{
    transform: scale(1.1);
}
#delete_btn{
    color: rgb(248, 52, 52);
    cursor: url(/imgs/eraser_12333615.png), auto;
    background-color: beige;
}
#delete_btn:hover{
    transform: scale(1.1);
}
#verify_btn{
    color: rgb(1, 117, 32);
    background-color: rgb(132, 254, 254);
}
#verify_btn:hover{
    transform: scale(1.1);
}
#showresults_btn{
    color: rgb(7, 7, 7);
    background-color: rgb(186, 186, 186);
}
#showresults_btn:hover{
    transform: scale(1.1);
}
#delete_btn{
    color: rgb(248, 52, 52);
    cursor: url(/imgs/eraser_12333615.png), auto;
}
#delete_btn:hover{
    transform: scale(1.1);
}

.btn_tour{
    width: 85px;
    height: 29px;
    border-radius: 15px;
    background-color: rgb(50, 118, 67);
    color: rgb(249, 250, 255);
    border: none;
    font-family:'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
    font-size: .9rem;
    font-weight: 700;
    cursor: pointer ;
    position: absolute;
    bottom: 100%;
    right: 0%;
    display: flex;
    justify-content: center;
    align-items: center;
}
.btn_tour:hover{
    transform: scale(1.1);
}
/* Buttons Functions */

@media all and (max-width:875px){
    .main{
        padding: 1rem;
    }
    main{
        grid-template-columns: 55% 22%;
        grid-template-rows: 29px 270px;
    }
    .section2{
        justify-content: center;
        gap: .5rem;
    }
    .buttons{
        width: 70px;
        height: 35px;
        font-size: .9rem;
    }

}
@media all and (max-width:975px){
   
    .section1{
        grid-template-columns: repeat(3, 3.75rem);
        grid-template-rows: 1.1rem 1.8rem repeat(2, 2.5rem);
        row-gap: .2rem;
    }
    .carry_over{
        grid-template-columns: repeat(4, 3.75rem);
    }
    .ad{
        grid-template-columns: repeat(3, 3.75rem);
        row-gap: .1rem;
    }
    .subtractionSign{
        grid-template-columns: 3.75rem repeat(3, 3.75rem);
    }
    .bordertop{
        width: calc(3.75rem * 2);
        grid-template-columns: repeat(4, 3.75rem);
    }
    .subtSign{
    font-size: 28px;
    }
    .inputs{
        height: 2.5rem;
        width: 3.5rem;
        font-size: 1.2rem;
       
    }

    .buttons{
        width: 75px;
        height: 42px;
        font-size: .9rem;
    }
    main{
        max-width: 100%;
        grid-template-columns:55% 25%;
        grid-template-rows: 59px 280px;
    }
    .carryOver, .borrowBtn{
        height: 2rem;
        width: 2rem;
        font-size: 1.5rem;
    }
}
@media all and (max-width:650px){
    main{
        grid-template-columns: 55% 29%;
        grid-template-rows: 42px 260px;
    }
}
@media all and (max-width:600px){
    .test_section{
        flex-direction: column;
    }
    .test_btn{
        height: 70px;
    }
    .test_lb{
        font-size: 1.25rem;
    }
    .paragraph_text {
        flex-direction: column;
        margin: 1rem auto;
      }
      .image-section{
        
        width: auto;
        padding: 1rem;
        margin: 1rem;
      }

    .section1{
        grid-row: 2;
        grid-template-columns: repeat(3, 3.75rem);
        row-gap: .2rem;
        padding-right: 3.7rem;
    }

    .ad{
        grid-template-columns: repeat(3, 3.75rem);
        row-gap: .1rem;
    }
    .subtractionSign{
        grid-template-columns: 3.75rem repeat(3, 3.75rem);
    }
    .bordertop{
        width: calc(3.75rem * 2);
        grid-template-columns: repeat(4, 3.75rem);
    }
    
    .subtSign{
    font-size: 28px;
    }
    .inputs{
        height: 2.5rem;
        width: 3.5rem;
        font-size: 1.2rem;
        background-color: white;
    }
    .section2{
        grid-row: 3;
        grid-column: 1;
        gap: 10px;
    }
    .section4{
        grid-column: 1;
        grid-row: 4;
    }
    .buttons{
        width: 105px;
        height: 42px;
        font-size: 1rem;
    }
    .main{
        width: 100%;
        padding: .1rem;
    }
    main{
        max-width: 100%;
        width: 645px;
        padding: 1rem;
        background-image: none;
        background-color: rgb(155, 155, 255);
        grid-template-columns: 100%;
        grid-template-rows: 45px 250px 242px 50px;
    }
    .popup{
        padding: 0 10px 18px;
        max-width: 310px;
    }
}
@media all and (max-width:300px){
    .main{
        overflow: scroll;
    }
}