@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-initial {
    opacity: 0;
}

.fade-in {
    animation: fadeIn 1s ease-out forwards;
}

.service-item, .prop-item {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-item:hover, .prop-item:hover {
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

@keyframes slideInFromLeft {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideInFromRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.hamburger-menu {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger-menu span {
    width: 25px;
    height: 3px;
    background-color: var(--dark-gray);
    margin: 3px 0;
    transition: 0.4s;
}

.hamburger-menu.open span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.hamburger-menu.open span:nth-child(2) {
    opacity: 0;
}

.hamburger-menu.open span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

@media screen and (max-width: 768px) {
    .hamburger-menu {
        display: flex;
    }

    .nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        position: absolute;
        top: 100%;
        left: 0;
        background-color: white;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links li {
        padding: 1rem;
        text-align: center;
        border-top: 1px solid #eee;
    }
}