*{
    margin: 0px;
    box-sizing: border-box;
}
.background{
    background-image: url("./img/background.png");
    background-size: cover;
    background-repeat: no-repeat;
    width: 100%;
    height: 100vh;
}
.game-logo-box{
    width: 100%;
    height: 55vh;
    display: flex;
    justify-content: center;
}
.game-logo{
    width: 40%;
    height: 100%;
    background-image: url("./img/COB.png");
    background-size: 400px;
    background-repeat: no-repeat;
    background-position: center;
      transform: scale(1.5);

    /* Run zoom out then floating */
    animation: zoomOut 1.5s ease-out forwards, floatLogo 3s 1.5s infinite alternate ease-in-out;
}
/* Step 1: Zoom out */
@keyframes zoomOut {
    0% {
        transform: scale(1.5);
        opacity: 0;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }}
.game-enter-box{
    width: 100%;
    height: 35vh;
    display: flex;
    justify-content: center;
}
.game-enter{
    width: 100%;
    height: 30vh;
    background-image: url("./img/start.png");
    background-size: 327px;
    background-repeat: no-repeat;
    background-position: center;
}
.game-enter-box a{
    width: 40%;
    height: 30vh;
}
.game-enter:hover{
    transition: 1s;
    transform: translateY(20px);
cursor: pointer;
}
.background {
    width: 100%;
    height: 100vh;
    background-image: url("./img/background.png");
    background-size: 110%;
    background-position: center;
    animation: zoomBg 12s ease-in-out infinite alternate;
}

@keyframes zoomBg {
    from {
        background-size: 110%;
    }
    to {
        background-size: 120%;
    }}

/* Audio Controls - LEFT SIDE - STACKED VERTICALLY */
.audio-controls {
    position: fixed;
    top: 20px;
    left: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 1000;
}

.audio-btn {
    width: 50px;
    height: 50px;
    background-color: rgba(0, 0, 0, 0.6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

.audio-btn:hover {
    background-color: rgba(0, 0, 0, 0.8);
    transform: scale(1.1);
}

.audio-btn.active {
    background-color: #4CAF50;
}

.audio-btn i {
    font-size: 24px;
    color: white;
}

.audio-btn.muted {
    background-color: #ff4444;
}

.audio-btn.muted:hover {
    background-color: #cc0000;
}