styles.css

/*
    IMPORTING FONTS FROM RELATIVE SOURCE
*/
@font-face {
    font-family: "Outfit";
    src: url("./fonts/outfit.ttf");
}

/*
  VARIABLES DECLARATION ON ROOT
*/
:root {
    --primary: #1A2B33;
    --secondary: #1E3640;
    --grey: #A9BEC8;
    --dark-cyan: #34C3BE;
    --lighten-yellow: #F2B138;
}

* {     /* Manual CSS Reset */
    margin: 0;
    padding: 0;
}

[role='button'],    
textarea,  /* Disables selection highlighting upon elements on Mobile devices */
input,
select, 
a{
    -webkit-tap-highlight-color: transparent;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.disabled {     /* Used to hide dom elements via Javascript at certain events */
    display: none !important;
}

html {    /* Ensuring the device height */
  height: 100%;
}

body {
    font-family: 'Outfit', sans-serif;
    text-transform: uppercase;
    height: 100vh;
    display: grid;
    place-items: center;
    letter-spacing: .08em;
    background: var(--primary);
    color: var(--primary);
}

header {
    position: fixed;
    width: 100%;
    height: 4rem;
    top: 0;
    display: grid;
    place-items: center;
    background: white;
    display: none;
}

main {
    display: grid;
    place-items: center;
    padding: 10px;
    border-radius: 10px;
    width: 100%;
}

.main__upper-section {
    position: fixed;
    top: .5em;
    width: 100%;
    height: max-content;
    padding: 10px;
    display: flex;
    justify-content: space-around;
    gap: 1em;
    align-items: center;
}

.main__restart-btn {
    width: 50px;
    height: 50px;
    background: url(./assets/icon-restart.svg), var(--grey);
    background-repeat: no-repeat;
    background-position: center, center;
    background-size: 50%, 100%;
    border-radius: 10px;
    box-shadow: 0 -5px 0px rgba(0, 0, 0, .3);
}
.main__restart-btn {
    color: #f7f7f7;
}

.main__player-turn-display {
    display: flex;
    justify-content: center;
    align-items: center;
    background: #1E3640;
    gap: 10px;
    font-size: 1.2rem;
    padding: 10px 25px;
    box-shadow: 0 10px 10px rgba(0, 0, 0, .3);
    border-radius: 10%;
    color: var(--grey);
    
}

[data-field-turn='turn-x'] .main__get-turn-sign {
    background-image: url(./assets/icon-x-gray.svg);
}
[data-field-turn='turn-o'] .main__get-turn-sign {
    background-image: url(./assets/icon-o-gray.svg);
}
.main__get-turn-sign,
.result-conveyer__get-winner-sign {
    width: 20px;
    height: 20px;
    background-size: 100%;
    background-repeat: no-repeat;
    background-position: center;
}
.main__seperator,span {
    width: 100%;
    height: 1px;
    background: rgba(0, 0, 0, .5);
}

.main__game-board {
    width: 310px;
    min-height: 310px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(3, 1fr);
    overflow: hidden;  
    gap: 20px; 
    padding: 20px 5px;
}

.game-board__field {
    color: var(--woody-brown);
    background: #1E3640;
    border-radius: 5px;
    font-weight: 700;
    display: grid;
    place-items: center;
    font-size: 3.5rem;
    outline: 2px solid var(--opac-black);
    outline: 2px solid rgba(255, 255, 255, .2);
    transition: all .5s ease;
    box-shadow: 0 10px 10px rgba(0, 0, 0, .5);

}
.game-board__state {
    width: 100%;
    height: 100%;
    background-size: 60%;
    background-repeat: no-repeat;
    background-position: center;
    transition: all .5s ease;
}

.main__summary-section {
    display: grid;
    width: 100%;
    gap: 15px;
    grid-template-columns: 1fr 1fr 1fr;
    margin-top: 50px;
    width: 90%;
}
.main__summary {
    border-radius: 10px;
    display: grid;
    place-items: center;
    padding: 10px 20px;
}
.main__summary:first-child {
    background: var(--dark-cyan);
}
.main__summary:nth-child(2) {
    background: var(--grey);
}
.main__summary:nth-child(3) {
    background: var(--lighten-yellow);
}
.main__display-name {
    font-size: .65rem;
}
.game-board__field [data-field-turn] {
    transition: all .5s ease;
}
.game-board__field [data-field-turn='turn-x']:hover {
    background-image: url(./assets/icon-x-outline.svg);
}
.game-board__field [data-field-turn='turn-o']:hover {
    background-image: url(./assets/icon-o-outline.svg);
}
[data-field-state='set-x'] {
    background-image: url(./assets/icon-x.svg) !important;
}
[data-field-state='set-o'] {
    background-image: url(./assets/icon-o.svg) !important;
}

.game-board--field-won-x { background: var(--dark-cyan);}
.game-board--field-won-o { background: var(--lighten-yellow);}

.game-board--field-won-x > [data-field-state='set-x'] {
    background-image: url(./assets/icon-x-transparent.svg) !important;
}
.game-board--field-won-o > [data-field-state='set-o'] {
    background-image: url(./assets/icon-o-transparent.svg) !important;
}
.game-initializer {
    height: 100vh;
    width: 100vw;
    display: grid;
    align-content: center;
    justify-items: center;
    gap: 50px;
}

.game-initializer__player-picker {
    background: var(--secondary);
    height: 250px;
    width: 90%;
    border-radius: 10px;
    box-shadow: 0 10px 10px rgba(0, 0, 0, .5);
    display: grid;
    grid-template-rows: 75px 1fr 75px;
    place-items: center;
    
    color: var(--grey);
    font-size: 1rem;
}

.game-initializer__notice {
    color: rgba(255, 255, 255, .4);
}

.game-initializer__sign-selector {
    display: grid;
    width: 80%;
    height: 80%;
    grid-template-columns: 1fr 1fr;
    border-radius: 18px;
    overflow: hidden;
    background: #1A2B33;
    position: relative;
    padding: 10px;
}

.game-initializer--hide-label {
    border: 0;
    clip-path: rect(1px 1px 1px 1px); /* IE6, IE7 */
    clip-path: rect(1px, 1px, 1px, 1px);
    height: 1px;
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute;
    width: 1px; 
} 

[class*='game-initializer__select'] {
    -webkit-appearance: none;
	-moz-appearance: none;
	appearance: none;
    outline: none;
    transition-duration: 0.3s;
    cursor: pointer;
    position: absolute;
    width: 50%;
    height: 100%;
}
[class*='game-initializer__select']:first-of-type{
    left: 0;
}
[class*='game-initializer__select']:last-of-type{
    right: 0;
}

.game-initializer__sign--x {
    background: url(./assets/icon-x-gray.svg), #1A2B33;
}

.game-initializer__sign--o {
    background: url(./assets/icon-o-gray.svg), #1A2B33;
}

[class*='game-initializer__select']:first-of-type:checked ~
.game-initializer__sign--x{
    background: url(./assets/icon-x-transparent.svg), var(--grey);
}
[class*='game-initializer__select']:last-of-type:checked ~
.game-initializer__sign--o{
    background: url(./assets/icon-o-transparent.svg), var(--grey);
}

.game-initializer__sign,
[class*='game-initializer__select']:last-of-type:checked ~
.game-initializer__sign {
    background-position: center, 100% !important;
    background-repeat: no-repeat, no-repeat !important;
    background-size: 25%, 100% !important;
    border-radius: 15px;
    overflow: hidden;
    transition: .5s ease;
}

.game-initializer__action-btn,
.result-conveyer__reset-btn, 
.result-conveyer__continue-btn {
    height: 50px;
    padding-bottom: 5px;
    display: grid;
    place-items: center;
    border-radius: 10px;
    
    font-weight: 700;
    box-shadow: inset 0 -3px 2px rgba(0, 0, 0, .3);
}
.game-initializer__action-btn {
    background: var(--lighten-yellow);
    width: 80%;
}
.result-conveyer__action-section {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1em;
    width: 100%;
}
.result-conveyer__reset-btn {
    width: 25%;
    background: var(--grey);
}
.result-conveyer__continue-btn {
    width: 40%;
    background: var(--lighten-yellow);
}
[role='button'] {
    transition: all .3s ease;
}
[class*='clicked'] {
    transform: scale(.95) translateY(5px);
    box-shadow: 0 0 0, inset 0 2px 10px rgba(0, 0, 0, .4);
    filter: brightness(1.2);
}
.result-conveyer {
    position: fixed;
    background: var(--secondary);
    height: max-content;
    text-align: center;
    width: 100%;
    padding: 40px 0;
    box-shadow: 0 0 0 100vh rgba(0, 0, 0, .3);
    display: grid;
    place-items: center;
    gap: 20px;
}
.result-conveyer__result,
.greyish-text {
    color: var(--grey);
}
.greyish-text {
    font-size: 2rem;
}

.result-conveyer__brief {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    height: 50px;
    margin-bottom: 10px;
}
.result-conveyer__get-winner-sign {
    width: 40px;
    height: 40px;
}
[data-field-turn='turn-x'] .result-conveyer__get-winner-sign {
    background-image: url(./assets/icon-x.svg);
}
[data-field-turn='turn-o'] .result-conveyer__get-winner-sign {
    background-image: url(./assets/icon-o.svg);
}
[data-field-turn=''] .result-conveyer__get-winner-sign {
    display: none;
}
.result-conveyer__brief {
    color: var(--dark-cyan);
}

/*
    MEDIA QUERIES SECTION
*/
@media (min-width: 37.5em) {      /*  For Tablets  */
    main {
        gap: 2em;
    }

    .main__game-board {
        width: 450px;
        min-height: 450px;
        gap: 1.7em;
        margin-top: 50px;
    }

    .main__summary-section {
        width: 60%;
    }

    .main__upper-section {
        top: 2em;
    }

    .main__display-name {
        font-size: .8rem;
    }

    .game-initializer {
        width: 35em;
    }

    .game-initializer__action-btn {
        width: 50%;
    }
}
@media (min-width: 56.25em) {       /*  For Desktops  */
    main {
        gap: 0;
        width: 70%;
        margin-top: 5em;
    }

    .main__upper-section {
        justify-content: space-evenly;
        gap: 0;
    }
    
    .main__game-board {
        width: 350px;
        min-height: 350px;
        gap: 1.7em;
        margin-top: 0px;
    }

    .result-conveyer__action-section {
        width: 45%;
    }
}