style.css

@import url('https://fonts.googleapis.com/css?family=Poppins:900i');

* {
    padding: 0;
    margin: 0;
    box-sizing: content-box;
    user-select: none;
}

body {
    display: grid;
    place-items: center;
    background-color: #020c15;
    font-family: 'Poppins', sans-serif;
}

.container {
    height: 100vh;
    width: 100vw;
    display: flex;
    flex-flow: column;
    justify-content: center;
    align-items: center;
}

.heading h1 {
    position: relative;
    font-size: 3rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    text-align: center;
    color: #fff;
    white-space: nowrap;
}

.heading h1::before {
    content: '';
    background-color: #FBC638;
    display: block;
    height: 4px;
    width: 75px;
}

.heading h1::after {
    content: '';
    background-color: #FBC638;
    display: block;
    position: absolute;
    right: 0;
    bottom: 0;
    height: 4px;
    width: 75px;
}

.mainMenu {
    color: #fff;
    text-align: center;
}

.mainMenu ul {
    list-style: none;
    font-size: 20px;
    position: relative;
    display: flex;
    flex-flow: column;
    gap: 2rem;
    margin: 2rem 0;
}

.mainMenu ul li label {
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
}

.mainMenu ul li label input[type="radio"] {
    appearance: none;
    display: none;
}

.mainMenu ul li:nth-child(1) label input[type="radio"]:checked~p,
.mainMenu ul li:nth-child(1) label:hover p {
    color: greenyellow;
}

.mainMenu ul li:nth-child(1) label:hover span {
    display: inline-block;
    position: absolute;
    top: 0;
    margin-left: 120px;
    width: 7px;
    height: 0;
    background: greenyellow;
    animation: animate1 0.5s linear forwards;
}



.mainMenu ul li:nth-child(1) label:hover span::before,
.mainMenu ul li:nth-child(1) label input[type="radio"]:checked~span::before {
    content: "";
    display: block;
    height: 1px;
    position: absolute;
    left: 15px;
    bottom: 0;
    background-color: gray !important;
    animation: info1 0.5s linear forwards;
    animation-delay: 0.5s;
}



.mainMenu ul li:nth-child(1) label:hover span::after,
.mainMenu ul li:nth-child(1) label input[type="radio"]:checked~span::after {
    content: "Board : 9 x 9 \a 💣 : 10";
    display: inline-block;
    position: absolute;
    font-size: 12px;
    font-weight: bold;
    top: -10px;
    left: 20px;
    width: 75px;
    opacity: 0;
    animation: info1FromBoard 0.5s linear forwards;
    animation-delay: 0.8s;
}



.mainMenu ul li:nth-child(2) label:hover span {
    display: inline-block;
    position: absolute;
    top: 0;
    margin-left: 120px;
    width: 7px;
    background: linear-gradient(180deg, greenyellow, orangered);
    animation: animate2 0.5s linear forwards;
}



.mainMenu ul li:nth-child(2) label:hover span::before,
.mainMenu ul li:nth-child(2) label input[type="radio"]:checked~span::before {
    content: "";
    display: block;
    height: 1px;
    position: absolute;
    left: 15px;
    bottom: 0;
    background-color: gray !important;
    animation: info2 0.5s linear forwards;
    animation-delay: 0.5s;
}



.mainMenu ul li:nth-child(2) label:hover span::after,
.mainMenu ul li:nth-child(2) label input[type="radio"]:checked~span::after {
    content: "Board : 16 x 16 \a 💣 : 40";
    white-space: pre;
    display: inline-block;
    position: absolute;
    font-size: 12px;
    font-weight: bold;
    top: 50px;
    left: 20px;
    width: 80px;
    opacity: 0;
    animation: info2FromBoard 0.5s linear forwards;
    animation-delay: 0.8s;
}



.mainMenu ul li:nth-child(3) label:hover span {
    display: inline-block;
    position: absolute;
    top: 0;
    margin-left: 120px;
    height: 0;
    width: 7px;
    background: linear-gradient(180deg, greenyellow, orangered, red);
    animation: animate3 0.5s linear forwards;
}



.mainMenu ul li:nth-child(3) label:hover span::before,
.mainMenu ul li:nth-child(3) label input[type="radio"]:checked~span::before {
    content: "";
    display: block;
    height: 1px;
    position: absolute;
    left: 15px;
    bottom: 0;
    background-color: gray !important;
    animation: info3 0.5s linear forwards;
    animation-delay: 0.5s;
}



.mainMenu ul li:nth-child(3) label:hover span::after,
.mainMenu ul li:nth-child(3) label input[type="radio"]:checked~span::after {
    content: "Board : 30 x 16 \a 💣 : 99";
    white-space: pre;
    display: inline-block;
    position: absolute;
    font-size: 12px;
    font-weight: bold;
    top: 115px;
    left: 20px;
    width: 80px;
    opacity: 0;
    animation: info3FromBoard 0.5s linear forwards;
    animation-delay: 0.8s;
}



.mainMenu ul li:nth-child(1) label input[type="radio"]:checked~span {
    display: inline-block;
    position: absolute;
    top: 0;
    margin-left: 120px;
    width: 7px;
    min-height: 25px;
    background: greenyellow;
    animation: animate1 0.5s linear forwards;
}

.mainMenu ul li:nth-child(2) label input[type="radio"]:checked~span {
    display: inline-block;
    position: absolute;
    top: 0;
    margin-left: 120px;
    width: 7px;
    min-height: 85px;
    background: linear-gradient(180deg, greenyellow, orangered);
    animation: animate2 0.5s linear forwards;
}

.mainMenu ul li:nth-child(3) label input[type="radio"]:checked~span {
    display: inline-block;
    position: absolute;
    top: 0;
    margin-left: 120px;
    width: 7px;
    min-height: 150px;
    background: linear-gradient(180deg, greenyellow, orangered, red);
    animation: animate3 0.5s linear forwards;
}

.mainMenu ul li:nth-child(2) label input[type="radio"]:checked~p,
.mainMenu ul li:nth-child(2) label:hover p {
    color: orangered;
}

.mainMenu ul li:nth-child(3) label input[type="radio"]:checked~p,
.mainMenu ul li:nth-child(3) label:hover p {
    color: red;
}

.wrapper {
    margin: 20px 0;
    display: flex;
    justify-content: center;
    cursor: pointer;
}

.cta {
    display: flex;
    padding: 10px 45px;
    text-decoration: none;
    font-family: 'Poppins', sans-serif;
    font-size: 30px;
    color: white;
    background: #6225E6;
    transition: 1s;
    box-shadow: 6px 6px 0 black;
    transform: skewX(-15deg);
}

.cta:focus {
    outline: none;
}

.cta:hover {
    transition: 0.5s;
    box-shadow: 10px 10px 0 #FBC638;
}

.cta .startButton:nth-child(2) {
    transition: 0.5s;
    margin-right: 0px;
}

.cta:hover .startButton:nth-child(2) {
    transition: 0.5s;
    margin-right: 45px;
}

.startButton {
    transform: skewX(15deg)
}

.startButton:nth-child(2) {
    width: 20px;
    margin-left: 30px;
    position: relative;
    top: 12%;
}

/**************SVG****************/

path.one {
    transition: 0.4s;
    transform: translateX(-60%);
}

path.two {
    transition: 0.5s;
    transform: translateX(-30%);
}

.cta:hover path.three {
    animation: color_anim 1s infinite 0.2s;
}

.cta:hover path.one {
    transform: translateX(0%);
    animation: color_anim 1s infinite 0.6s;
}

.cta:hover path.two {
    transform: translateX(0%);
    animation: color_anim 1s infinite 0.4s;
}

/* SVG animations */

@keyframes color_anim {
    0% {
        fill: white;
    }

    50% {
        fill: #FBC638;
    }

    100% {
        fill: white;
    }
}

.gameBoard {
    display: none;
    flex-wrap: wrap;
    background-color: #00211f;
    border-radius: 15px;
    box-shadow: 0 0 15px 5px #6225E6,
        0 0 30px 5px #6225E6,
        0 0 60px 5px #6225E6,
        inset 0 0 15px 3px #000;
    padding: 15px;
    margin-bottom: 10pc;
}

.gameBoard div {
    box-sizing: border-box;
    border-radius: 5px;
    border: 1px solid #555656;
    height: 40px;
    width: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    background-color: #8eadb1;
    padding: 1px;
}

.checked {
    background-color: rgb(150, 255, 150) !important;
    font-weight: bold;
}

.docFlyout {
    height: 5vh;
    width: 50vw;
    display: flex;
    justify-content: space-evenly;
    align-items: center;
    background: rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(10px);
    position: fixed;
    bottom: 1rem;
    padding: 1rem;
    border: 1px solid #f7f7f752;
    border-radius: 5px;
    box-shadow: inset 0 0 10px 0px #f7f7f752;
}

.docFlyout p {
    font-size: 1.5rem;
    color: #fff;
    text-align: center;
}

.scoreBoard {
    font-size: 3em;
    color: #fff;
}

.scoreBoard span {
    text-indent: 15px;
}

.bombCountIs1 {
    color: #078a12;
}

.bombCountIs2 {
    color: yellow;
    /* color: yellow; */
}

.bombCountIs3 {
    color: blue;
}

.bombCountIs4 {
    color: purple;
}

.bombCountIs5 {
    color: brown;
}

.bombCountIs6 {
    color: red;
}

.gameOver {
    background-color: #ff3700d3 !important;
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal-content {
    margin: 15% auto;
    padding: 20px;
    width: 40%;
    color: white;
    border: 1px solid #f7f7f752;
    background: rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(10px);
    border-radius: 5px;
    box-shadow: inset 0 0 10px 0px #f7f7f752;
    text-align: center;
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close:hover {
    color: #6225E6;
}

.hidden {
    display: none;
}

/* Animations */
@keyframes animate1 {
    from {
        min-height: 0;
    }

    to {
        min-height: 25px;
    }
}

@keyframes info1 {
    from {
        width: 0;
    }

    to {
        width: 80px;
    }
}

@keyframes info1FromBoard {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes animate2 {
    from {
        min-height: 0;
    }

    to {
        min-height: 85px;
    }
}

@keyframes info2 {
    from {
        width: 0;
    }

    to {
        width: 90px;
    }
}

@keyframes info2FromBoard {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes animate3 {
    from {
        min-height: 0;
    }

    to {
        min-height: 150px;
    }
}

@keyframes info3 {
    from {
        width: 0;
    }

    to {
        width: 90px;
    }
}

@keyframes info3FromBoard {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes titleAnim {
    from {
        margin-top: 250px;
    }

    to {
        margin-top: 50px;
    }
}


/* Responsive for smaller screens */
@media screen and (max-width: 600px) {
    .container {
        width: 90%;
    }

    .gameBoard{
        transform: scale(0.9);
    }

    .docFlyout{
        width: 80%;
        left: 50%;
        transform: translate(-50%, 0);
        margin-top: 5pc;
    }

    .heading {
        padding-bottom: 1rem;
    }
}

@media screen and (max-width: 375px) {}