/* Splash Screen */
#splash-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: none;
    cursor: pointer;
}

#splash-screen .logo-half {
    position: absolute;
    top: 0;
    height: 100%;
    width: 50%;
    background-size: contain;
    background-repeat: no-repeat;
    transition: transform 1s ease-in-out;
    background-color: #000;
}

#splash-screen .left-half {
    left: 0;
    background-position: right;
    background-image: url('/lavaca/images/vaca_splash_1080_gauche.jpg');
    transform: translateX(0);
}

#splash-screen .right-half {
    right: 0;
    background-position: left;
    background-image: url('/lavaca/images/vaca_splash_1080_droite.jpg');
    transform: translateX(0);
}

#splash-screen.hidden .left-half {
    transform: translateX(-100%);
}

#splash-screen.hidden .right-half {
    transform: translateX(100%);
}

#splash-screen .click-instruction {
    position: absolute;
    bottom: 50px;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    font-size: 1.2rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
    opacity: 0.8;
    animation: pulse 2s infinite;
    z-index: 10001;
}

@keyframes pulse {
    0% { opacity: 0.8; }
    50% { opacity: 0.4; }
    100% { opacity: 0.8; }
}

/* Body visibility control */
body:not(.content-visible) > *:not(#splash-screen) {
    opacity: 0;
    overflow: hidden;
}

body.content-visible {
    opacity: 1;
    overflow: auto;
}

body.content-visible > *:not(#splash-screen) {
    opacity: 1;
    transition: opacity 0.5s ease-in-out;
}