* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    list-style: none;
    font-family: montserrat, sans-serif;
}

body {
    background-color: #0f0f1e;
    color: #fff;
    overflow: hidden;
}

header {
    position: fixed;
    width: 90vw;
    top: 0;
    padding: 20px 50px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 3;
}



.logo {
    font-family: "Orbitron", sans-serif;
    font-size: 2rem;
    font-weight: 900;
    color: #00f7ff;
    text-shadow: 0 0 10px rgba(0, 247, 255, 0.5);
}

header nav ul {
    display: flex;
    gap: 48px;

}

header nav ul li {
    cursor: pointer;
    position: relative;
    padding: 5px 0;
}


header nav ul li::after {
    cursor: pointer;
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background-color: #00f7ff;
    transition: width 0.5s ease;
}

header nav ul li:hover::after {
    width: 100%;
}


.container {
    height: 100vh;
    position: relative;
    background: linear-gradient(135deg, #0f0f1e 0%, #1f1f3a 100%);
    overflow: hidden;

}

.container::before {

    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 247, 255, 0.2) 0%, rgba(15, 15, 30, 0) 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    filter: blur(50px);
    z-index: 1;
    animation: pulse 4s infinite alternate;

}

@keyframes pulse {
    0% {
        opacity: 0.5;
        transform: translate(-50%, -50%) scale(0.8);
    }

    100% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1.5);
    }
}


.list {
    width: 80%;
    height: 100vh;
    margin: 0 auto;
    position: relative;

}


.item {
    position: absolute;
    inset: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    /* animação */
    transform: translateX(100vw);
    transition: transform 0.7s ease-in-out, opacity 0.7s ease-in-out;
}

.active {
    opacity: 1;
    transform: translate(0);
}

.product-img img{
    width: 70%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 2;
    

    /* animação */
   transform: translateX(0);
    opacity: 0;
    transition: transform 0.6s ease, opacity 0.6s ease;
    transition-delay: 0.5s; 
}

.active .product-img img { 
    transform: translateX(70px);
    opacity: 1;
   } 

.product-img img {
    max-width: 80%;
    max-height: 60%;
    filter: drop-shadow(0 0 30 rgba(0, 247, 255, 0.3));
}

.content {
    width: 55%;
    padding-right: 80px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    z-index: 2;
}


.product-tag {
    font-size: 1rem;
    text-transform: uppercase;
    color: #00f7ff;
    letter-spacing: 2px;
    margin-bottom: 10px;
    opacity: 0;


}

.product-name {
    font-size: 4.5rem;
    font-family: "Orbitron", sans-serif;
    line-height: 1.1;
    margin-bottom: 20px;
}




.description {
    font-size: 1.1rem;
    color: #b8b8d0;
    line-height: 1.6;
    margin-bottom: 30px;
    max-width: 600px;
}

.btn {
    padding: 12px 10px;
    background: linear-gradient(90deg, #00f7ff, #0066ff);
    border-radius: 30px;
    color: #000;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
}



.btn:hover {
    background-color: aqua;
    color: #0066ff;
}

.arrows {
    position: absolute;
    width: 90%;
    display: flex;
    justify-content: space-between;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 5;
}


.arrow-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    background-color: #1f1f3a;
    border: 1px solid #00a0a0;
    color: #85fbff;
}


.arrow-btn:hover {
    background-color: #1f1f3a63;
    border-color: #00f7ff;
    color: #00f7ff;
}


.indicators {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    z-index: 5;

}

.numbers {
    font-family: "Orbitron", sans-serif;
    font-size: 3rem;
    font-weight: 800;
    color: rgb(255, 255, 255, 0.2);

}

.dots {
    display: flex;
    gap: 10px;
}


.dot {
    width: 40px;
    height: 4px;
    background-color: rgb(255, 255, 255, 0.2);
    border-radius: 2px;

}

.dot.active {
    background-color: #00f7ff;
    box-shadow: #00a0a0;
}


.tech-circle{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.circle{
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(0, 247, 255, 0.2);
}


.circle:nth-child(1) {
    width: 200px;
    height: 200px;
    top: 10%;
    left: 10%;
    animation: scale 2s infinite alternate;
}

.circle:nth-child(2) {
    width: 300px;
    height: 300px;
    top: 60%;
    left: 80%;
    animation: scale 2s infinite alternate;
}

.circle:nth-child(3){
    width: 150px;
    height: 150px;
    top: 70%;
    left: 20%;
    animation: scalew 2s infinite alternate;
}

.circle:nth-child(4){
    width: 150px;
    height: 150px;
    top: 20%;
    left: 80%;
    animation: scale 2s infinite alternate;
}


@keyframes scale {
    0% {
    
        transform: translateX(10%) scale(1);

    }

    100% { 
        transform:  translate(15%, 16%) scale(1.1);
    }

    0% { 
        transform: scale(1);
    }

 
    }

    @keyframes scalew {
        0% {
        
            transform: translateX(30%%) scale(1);
    
        }
    
        100% { 
            transform:  translate(40%, 40%) scale(1.1);
        }
    
        0% { 
            transform: scale(1);
        }
    
        }