.bottom-nav {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
}

.bottom-nav-container {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.contact-buttons {
    position: absolute;
    bottom: 120px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    opacity: 0;
    transform: translateY(20px);
    pointer-events: none;
    transition: all 0.3s ease;
}

.control-buttons {
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: center;
}

.bottom-nav-container.active .contact-buttons {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.nav-btn, .toggle-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--primary-color);
    display: flex;
    justify-content: center;
    align-items: center;
    text-decoration: none;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.nav-btn:hover, .toggle-btn:hover {
    background: var(hover-color);
    transform: scale(1.1);
}

.nav-icon {
    width: 20px;
    height: 20px;
    filter: invert(1);
}

.toggle-btn {
    position: relative;
    z-index: 2;
}

.message-icon, .close-icon {
    position: absolute;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.close-icon {
    opacity: 0;
    transform: rotate(-180deg);
}

.bottom-nav-container.active .message-icon {
    opacity: 0;
    transform: rotate(180deg);
}

.bottom-nav-container.active .close-icon {
    opacity: 1;
    transform: rotate(0);
}