```css
/* ===========================
   RESET
=========================== */

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

html,body{
    width:100%;
    height:100%;
    font-family:Segoe UI,Arial,sans-serif;
}

body{

    background:#02061d;

    color:#fff;

    overflow:hidden;

}

/* ===========================
   BACKGROUND
=========================== */

.background{

    position:fixed;
    top:0;
    left:0;

    width:100%;
    height:100%;

    background:url("images/background.png") center center no-repeat;
    background-size:cover;

    z-index:-10;

}


.background::after{

    content:"";

    position:absolute;

    inset:0;

    background:rgba(0,0,0,.45);

}



/* ===========================
   SCREEN
=========================== */

.screen{

    width:100%;
    height:100vh;

    display:flex;

    justify-content:center;

    align-items:center;

    flex-direction:column;

}

.hidden{

    display:none;

}

/* ===========================
   MENU
=========================== */

.logo{

    font-size:90px;

    margin-bottom:20px;

    animation:logo 2s infinite;

}

@keyframes logo{

0%{transform:scale(1);}
50%{transform:scale(1.1);}
100%{transform:scale(1);}

}

h1{

    font-size:42px;

    margin-bottom:40px;

    text-align:center;

    text-shadow:0 0 20px #ffd700;

}

.main-btn{ width:280px; height:65px; border:none; border-radius:40px; background:transparent; color:white;    border:3px solid white; font-size:24px; font-weight:bold; cursor:pointer; transition:.3s; }


.main-btn:hover{ 
transform:scale(1.05); 
background:transparent; 
}

/* ===========================
GAME
=========================== */

.game-wrapper{

    width:96%;

    height:94vh;

    display:flex;

}

/* LEFT */

.game-left{

    flex:3;

    display:flex;

    flex-direction:column;

    justify-content:center;

}

/* RIGHT */

.money-panel{

    width:290px;

    background:#071033;

    border:2px solid gold;

    border-radius:20px;

    padding:20px;

    margin-left:20px;

    overflow:auto;

}

.money-item{

    padding:12px;

    margin-bottom:8px;

    border-radius:8px;

    transition:.3s;

}

.money-item:hover{

    background:#15348b;

}

.active{

    background:gold;

    color:#000;

    font-weight:bold;

}

/* ===========================
LIFELINES
=========================== */

.lifelines{

    display:flex;

    justify-content:center;

    gap:15px;

    margin-bottom:20px;

}

.lifelines button{

    width:70px;

    height:70px;

    border-radius:50%;

    border:2px solid gold;

    background:#15348b;

    color:#fff;

    font-size:20px;

    cursor:pointer;

}

.lifelines button:hover{

    background:gold;

    color:#000;

}

/* ===========================
TIMER
=========================== */

.timer{

    width:90px;

    height:90px;

    border-radius:50%;

    border:3px solid gold;

    margin:auto;

    display:flex;

    justify-content:center;

    align-items:center;

    font-size:34px;

    font-weight:bold;

    margin-bottom:25px;

}

/* ===========================
QUESTION
=========================== */

.question-box{

    width:100%;

    min-height:160px;

    background:#0c2270;

    border:2px solid gold;

    border-radius:25px;

    display:flex;

    justify-content:center;

    align-items:center;

    flex-direction:column;

    margin-bottom:25px;

    padding:20px;

}

.question-number{

    color:gold;

    margin-bottom:15px;

}

.question{

    font-size:30px;

    text-align:center;

    line-height:1.5;

}

/* ===========================
ANSWERS
=========================== */

.answers{

    display:grid;

    grid-template-columns:1fr 1fr;

    gap:18px;

}

.answer{

    height:75px;

    border:none;

    border-radius:40px;

    background:#163a9a;

    color:white;

    border:2px solid gold;

    font-size:22px;

    cursor:pointer;

    transition:.3s;

}

.answer:hover{

    background:#295fe3;

}

.answer.correct{

    background:#2ecc71;

}

.answer.wrong{

    background:#e74c3c;

}

/* ===========================
GAME OVER
=========================== */

#gameOver h2{

    font-size:55px;

    margin-bottom:20px;

}

#gameOver p{

    font-size:30px;

    margin-bottom:35px;

}

/* ===========================
RESPONSIVE
=========================== */

@media(max-width:900px){

.game-wrapper{

    flex-direction:column;

}

.money-panel{

    width:100%;

    margin-left:0;

    margin-top:20px;

    display:grid;

    grid-template-columns:1fr 1fr;

    gap:6px;

}

.answers{

    grid-template-columns:1fr;

}

.question{

    font-size:22px;

}

h1{

    font-size:30px;

}

}




.selected{
    background:#ff9800 !important;
    color:#fff;
}

.correct{
    background:#16c60c !important;
    color:#fff;
    animation:correctFlash .6s infinite;
}

.wrong{
    background:#e81123 !important;
    color:#fff;
    animation:wrongFlash .6s infinite;
}

@keyframes correctFlash{

0%{background:#16c60c;}
50%{background:#7dff7d;}
100%{background:#16c60c;}

}

@keyframes wrongFlash{

0%{background:#e81123;}
50%{background:#ff8a8a;}
100%{background:#e81123;}

}




.answer{
    transition:.4s;
}

.selected{
    background:#ff9800 !important;
    color:#fff;
}

.correct{
    background:#00c853 !important;
    animation:blinkGreen .5s infinite;
}

.wrong{
    background:#d50000 !important;
    animation:blinkRed .5s infinite;
}

@keyframes blinkGreen{

0%{opacity:1;}
50%{opacity:.3;}
100%{opacity:1;}

}

@keyframes blinkRed{

0%{opacity:1;}
50%{opacity:.3;}
100%{opacity:1;}

}




/* ===========================
   MOBILE RESPONSIVE
=========================== */

@media(max-width:600px){


body{
    overflow:auto;
}


/* ANA EKRAN */

.screen{

    min-height:100vh;
    padding:15px;

}


h1{

    font-size:28px;
    line-height:1.3;
    margin-bottom:25px;

}


.logo{

    font-size:60px;

}



.main-btn{

    width:220px;
    height:55px;
    font-size:20px;

}



/* OYUN */

.game-wrapper{

    width:100%;
    height:auto;

    flex-direction:column;

}



/* SOL HİSSƏ */

.game-left{

    width:100%;

}



/* KÖMƏKLƏR */

.lifelines{

    gap:10px;
    margin-bottom:15px;

}


.lifelines button{

    width:55px;
    height:55px;

    font-size:18px;

}



/* TIMER */

.timer{

    width:65px;
    height:65px;

    font-size:26px;

    margin-bottom:15px;

}



/* SUAL */

.question-box{

    min-height:130px;

    padding:15px;

    border-radius:18px;

}


.question-number{

    font-size:14px;

}


.question{

    font-size:20px;

    line-height:1.3;

}



/* CAVABLAR */

.answers{

    grid-template-columns:1fr;

    gap:12px;

}


.answer{

    height:auto;

    min-height:55px;

    padding:10px 15px;

    font-size:17px;

    border-radius:30px;

}



/* PUL PANELİ */

.money-panel{

    order:-1;

    width:100%;

    margin:0 0 15px 0;

    padding:10px;

    display:grid;

    grid-template-columns:1fr 1fr;

    gap:5px;

    max-height:220px;

    overflow-y:auto;

}



.money-item{

    font-size:14px;

    padding:8px;

    margin:0;

    text-align:center;

}



}


/* ÇOX KİÇİK TELEFONLAR */

@media(max-width:380px){


h1{

    font-size:24px;

}


.question{

    font-size:18px;

}


.answer{

    font-size:15px;

}


.lifelines button{

    width:48px;
    height:48px;

}


.money-item{

    font-size:12px;

}


}

.players-online{

position:fixed;

top:15px;

left:15px;

background:#071033;

border:2px solid gold;

padding:10px 20px;

border-radius:20px;

color:white;

font-size:18px;

z-index:999;

}