#coin-toss-tool{
    width:100%;
    max-width:700px;
    margin:30px auto;
    padding:20px;
    box-sizing:border-box;
}

#coin-toss-tool .tool-box{
    background:#f3f4f6;
    border-radius:30px;
    padding:40px;
    text-align:center;
    box-shadow:0 12px 30px rgba(0,0,0,0.18);
}

#coin-toss-tool .stage{
    perspective:1000px;
    width:160px;
    height:160px;
    margin:0 auto;
    position:relative;
}

#coin-toss-tool .coin{
    width:160px;
    height:160px;
    position:relative;
    transform-style:preserve-3d;
    cursor:pointer;
}

#coin-toss-tool .side{
    position:absolute;
    width:100%;
    height:100%;
    border-radius:50%;
    backface-visibility:hidden;
    box-shadow:0 10px 30px rgba(0,0,0,0.15);
    transition:box-shadow 2s ease;
}

#coin-toss-tool .heads{
    z-index:2;
}

#coin-toss-tool .tails{
    transform:rotateX(180deg);
}

#coin-toss-tool .side img{
    width:100%;
    height:100%;
    border-radius:50%;
}

#coin-toss-tool .tossing-animation{
    animation:tossOut 2s cubic-bezier(0.42,0,0.58,1) forwards;
}

@keyframes tossOut{
    0%{transform:scale(1) rotateX(0deg);}
    50%{transform:scale(1.8) rotateX(1080deg);}
    100%{transform:scale(1) rotateX(var(--final-rotation));}
}

#resultText{
    margin-top:40px;
    font-size:1.6rem;
    font-weight:700;
    color:#34495e;
    min-height:1.2em;
    text-align:center;
}

#coin-toss-tool .call-container{
    margin-top:30px;
    text-align:center;
}

#coin-toss-tool .call-buttons{
    display:flex;
    gap:20px;
    justify-content:center;
}

#coin-toss-tool .call-btn,
#coin-toss-tool .btn{
    padding:15px 35px;
    font-size:1.1rem;
    font-weight:800;
    border:none;
    border-radius:8px;
    cursor:pointer;
    color:white;
}

#coin-toss-tool .call-btn{
    background:#bdc3c7;
}

#coin-toss-tool .call-btn.selected{
    background:#27ae60;
}

#coin-toss-tool .reset-wrapper{
    margin-top:20px;
}

#coin-toss-tool .reset-btn{
    background:#e74c3c;
}