body,html {
    height: 100%;
    margin: 0;
    overflow: hidden;
    background-image: url("../img/yugioh.png");
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    font-family: 'Montserrat', sans-serif;
}

.top_control {
    position: absolute;
    height: 50%;
    width: 100%;
}

.bottom_control {
    position: absolute;
    bottom: 0;
    height: 50%;
    width: 100%;
    transform: rotate(-180deg);
}

.op_btn_player_1 {
    position: relative;
    margin-top: 2rem;
    margin-left: 2rem;
    width: 12rem;
    height: 7rem;
    background-color: rgba(255,255,255,.1);
    border-radius: 4rem;
    box-shadow: rgba(0, 0, 0, 0.35) 0 5px 15px;
}

#add_btn {
    position: absolute;
    width: 6rem;
    height: 6rem;
    margin: .5rem .5rem;
    border-radius: 100%;
    border: none;
    background-color: rgba(255,255,255,.2);
    transition: 0.3s;
}

.value_bar {
    width: 100%;
}

.value_bar ul {
    display: flex;
    justify-content: space-evenly;
    flex-direction: row-reverse;
    list-style: none;
    text-align: center;
    padding: 0;
}

.add {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    color: rgba(255,255,255,.6);
    font-size: 3em;
    background-color: rgb(80,126,71);
    border-radius: 3rem;
    transform: rotate(-180deg);
    box-shadow: rgba(0, 0, 0, 0.35) 0 5px 15px;
    cursor: pointer;
}

.subtract {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    color: rgba(255,255,255,.6);
    font-size: 3em;
    background-color: rgb(138, 46, 26);
    border-radius: 3rem;
    transform: rotate(-180deg);
    box-shadow: rgba(0, 0, 0, 0.35) 0 5px 15px;
    cursor: pointer;
}

.lp_player_1 {
    width: 100%;
    display: flex;
    justify-content: center;
}

.lp_player_1 p {
    display: inline-block;
    color: rgba(255,255,255,.6);
    font-weight: bold;
    font-size: 11em;
    transform: rotate(-180deg);
    text-align: center;
    line-height: 0.8em;
}

p small {
    font-size: 0.5em;
    font-weight: normal;
}

.op_btn {
    position: relative;
    height: 4rem;
    width: 4rem;
    color: rgba(255,255,255,.6);
    z-index: 99;
    padding: 0.9rem;
}

.nav {
    position: absolute;
    right: 0;
    top: 0;
    height: 100%;
}

.nav ul {
    position: relative;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    list-style: none;
    justify-content: center;
    margin: 0 2rem;
    padding: 2rem 2rem;
    border-radius: 4rem;
    background-color: rgba(255,255,255,.2);
    box-shadow: rgba(0, 0, 0, 0.35) 0 5px 15px;
}

.nav ul li {
    display: inline-block;
    padding: 1.5rem 0;
    cursor: pointer;
}

.icon {
    color: rgba(255,255,255,.6);
    height: 4em;
    width: 4em;
}

.icon:hover {
    color: rgba(255,255,255,.9);
}

.sub_mode {
    margin: 0.5rem 5.5rem !important;
    transition: 0.3s;
}

#subtract {
    display: none;
}