index.css

:root {
     --ff-display-01:'Star Wars', sans-serif;
     
     --fw-500: 400;
     --fw-700: 700;
     
     --clr-black-erie: hsl(0, 0%, 11%); /* #1B1B1B */
     --clr-blue-space: #091733; 
     --clr-yellow-starwars: #FFE81F;
     --clr-black: #000;
     --clr-white: #FFF;
     --clr-tan-light:  hsl(31, 51%, 82%); /*#e9d3bb;*/
     --clr-tan-extralight: hsl(31, 51%, 94%);
}

html, body {
    padding: 0;
    margin: 0;    
    background: rgb(51,43,55);
    /* background: radial-gradient(circle, rgba(51,43,55,1) 0%, rgba(51,43,55,1) 100%); */
    background-image: url(/images/space-bg.jpg);
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--clr-black);
    font-family: var(--ff-display-01);
}

main {
    display:flex;
    flex-direction: column;
    align-items: center;
    margin-top: .5rem;
} 

@media(min-width:550px){
   main {
        flex-direction: row;
        margin:6vh 5vw;
        justify-content: center;
        width:86vw;
        gap: 2rem;
    } 
}

.character-card {
    height:14rem;
    margin-top: .5rem;
    width:94vw;
    max-width: 230px;
    padding: 1vh 1vw;
    font-size: 1.4rem;
    color: white;
    border-radius: 14px;
    position: relative;
    background: var(--clr-blue-space);
    text-align: center;
    overflow: hidden;
    border: 0.2rem solid var(--clr-yellow-starwars);
    box-shadow: inset 0px 0px 6px 2px rgba(100,100,100,0.2),
                0px 0px 10px rgba(117,182,214,0.2);
}

@media(min-width:550px){
    .character-card {
        border: 2rem solid var(--clr-tan-light);
        height:26rem;
        width:37vw;
    }
}

.name {
    margin: 1vh 0;
    width:100%;
    font-size: 90%;
}

@media(min-width:550px){
    .name {
    margin: 2vh 0;
    font-size: 100%;
}
}

.avatar {
    width: 15vh;
    border: 2px solid #000721;
    max-width:100%;
    opacity: 0.8;
    border-radius: 10px;
    background-color: var(--clr-black-erie);
}

@media(min-width:550px){
    .avatar {
        width: 25vh;
    }
}

.health {
    font-size: 1.1rem;
    font-weight: normal;
    width:90%;
    text-align: left;
    margin: 1vh 5%;
    color:#ccc;
    letter-spacing: 0.03em
}

@media(min-width:550px){
    .health {
        margin: 2vh 5%;
    }
}

.health b {
    font-weight: bold;
    color: var(--clr-tan-light);
}

.health-bar-outer {
    background: #171217;
    height: 1vh;
    width:90%;
    margin: 0 5%;
    border-radius: 2px;
}

.health-bar-outer .health-bar-inner {
    background: #466d34;
    height: 100%;
    border-radius: 2px;
}

.health-bar-outer .health-bar-inner.danger {
    background:#d1435f;
}

.dice-container {
    width:100%;
    height: 20%;
    position: absolute;
    bottom:0;
    left:0px;
    right:0;
    background: var(--clr-black);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: .5rem;
}

@media(min-width:550px){
    .dice-container {
        height: 30%;
        border-bottom-left-radius: 3px;
        border-bottom-right-radius: 3px;
    }
}

.dice, .placeholder-dice{
    height:5.5vh;
    width:5.5vh;
    background: #fff;   
    border-radius: 5px;
    border:1px solid #666;
    color: var(--clr-black-erie);
    text-align: center;
    line-height: 6vh;
}

@media(min-width:550px){
.dice-container .dice, .dice-container .placeholder-dice{
    height:10vh;
    width:10vh;
    line-height: 10.5vh;
}
}

.dice-container .placeholder-dice{
    background-color: transparent;
}

button {
    margin-top: .5rem;
    font-family: var(--ff-display-01);
    color: var(--clr-black);
    background-color: var(--clr-yellow-starwars);
    border: 2px solid var(--clr-black);
    outline: none;
    padding-left:5vw;
    padding-right:5vw;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 1.5rem;
    border-radius: 6px;
    cursor: pointer;
    height:9vh;
    /* box-shadow: 0px 6px 10px -4px rgba(0,0,0,0.4); */
}

@media(min-width:550px){
    button {
        margin-top: 0;
    }
}

button:focus { outline: 0 }

.end-game{
    margin-top: 25%;
    text-align: center;
}

.end-emoji{
    font-size: 80px;
}