/* Style du bouton vertical */
.bav-button {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    
    padding: 20px 10px;
    border: none;
    cursor: pointer;
    text-decoration: none;
    
    font-weight: 600;
    letter-spacing: 1px;
    box-shadow: -3px 3px 10px rgba(0,0,0,0.2);
    
    z-index: 999999;
    
    transition: opacity 0.2s ease;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* Position sur le côté */
.bav-side-left {
    left: 0;
    box-shadow: 3px 3px 10px rgba(0,0,0,0.2);
}

.bav-side-right {
    right: 0;
    box-shadow: -3px 3px 10px rgba(0,0,0,0.2);
}

/* Position verticale */
.bav-position-top {
    top: 20%;
}

.bav-position-middle {
    top: 50%;
    transform: translateY(-50%);
}

.bav-position-bottom {
    top: 80%;
    transform: translateY(-80%);
}

/* Texte vertical */
.bav-text {
    writing-mode: vertical-rl;
    transform: rotate(180deg); /* Pour lire de bas en haut */
    font-size: inherit;
    line-height: 1.2;
}

/* Icône */
.bav-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

/* Tailles */
.bav-size-small {
    padding: 15px 8px;
    font-size: 12px;
}

.bav-size-small .bav-icon {
    width: 16px;
    height: 16px;
}

.bav-size-medium {
    padding: 20px 10px;
    font-size: 13px;
}

.bav-size-medium .bav-icon {
    width: 20px;
    height: 20px;
}

.bav-size-large {
    padding: 25px 12px;
    font-size: 15px;
}

.bav-size-large .bav-icon {
    width: 24px;
    height: 24px;
}

/* Animations */
@keyframes slideInLeft {
    from {
        left: -100px;
        opacity: 0;
    }
    to {
        left: 0;
        opacity: 1;
    }
}

@keyframes slideInRight {
    from {
        right: -100px;
        opacity: 0;
    }
    to {
        right: 0;
        opacity: 1;
    }
}

.bav-side-left {
    animation: slideInLeft 0.5s ease-out;
}

.bav-side-right {
    animation: slideInRight 0.5s ease-out;
}

/* Responsive */
@media (max-width: 768px) {
    .bav-button {
        padding: 15px 8px;
        font-size: 12px;
    }
    
    .bav-icon {
        width: 16px;
        height: 16px;
    }
    
    .bav-position-top {
        top: 15%;
    }
    
    .bav-position-bottom {
        top: 85%;
    }
}