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

body {
  background: radial-gradient(circle at top, #1a1a40, #0f0035 60%);
  color: white;
  font-size: 16px;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  min-height: 100vh;

}

header {
  position: fixed;
  top: 0;
  padding: 20px 5%;
  display: flex;
  justify-content: space-between;
  width: 100%;
  align-items: center;
  z-index: 3;
  background-color: rgb(15, 0, 53);
  margin: 0 auto;
  border-bottom: 1px solid rgba(0, 255, 255, 0.3);

}



.logo {
  font-family: 'Orbitron', sans-serif;
  font-weight: 900;
  font-size: 2rem;
  color: aqua;
  text-shadow: 0 0 40px blue;
  cursor: pointer;
}

header nav ul {
  display: flex;
  gap: 50px;

}

header nav ul li {
  color: white;
  cursor: pointer;
  position: relative;
  padding: 5px 0;
  font-family: 'Orbitron', sans-serif;
    transition: color 0.3s ease;

}

header nav ul li::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background-color: aqua;

}

header nav ul li:hover {
  color: aqua;
}

header nav ul li:hover::after {
  width: 100%;
  transition: width 0.3s ease-in-out;
}






.container {
  position: relative;
  background: radial-gradient(circle at 20% 30%, #1f1f4a, #0f0035 70%);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 120px;
  min-height: 100vh;
}

.container::before {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50px;
  background: radial-gradient(circle, rgba(0, 255, 255, 0.2), transparent 30%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  filter: blur(50px);
  z-index: 1;
  animation: pulse 3s infinite alternate;
}

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

  100% {
  opacity: 0.8;
  transform: translate(-50%, -50%) scale(2.5);
  }
}

.list {
  width: 90%;
  max-width: 1200px;
  min-height: 70vh;
}

.item {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 80px;
  opacity: 0;
  transform: translateX(100vw);
  transition: transform 0.5s ease-in-out, opacity 0.7s ease-in-out;
    padding: 0 40px;

    

}

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

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

}



.product-img img {
  filter: drop-shadow(0 0 20px rgb(16, 105, 105));
  transform: translateX(200px);
  opacity: 0;
  transition: transform 0.6s ease, opacity 0.6s ease;
  transition-delay: 0.5s;
    width: 100%;
  max-width: 500px;
  height: auto;

}

.active .product-img img {
  transform: translateX(0);
  opacity: 1;
}

.content {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  z-index: 2;
  flex-direction: column;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  padding: 40px;
  border: 1px solid rgba(0, 255, 255, 0.2);
box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
  gap: 20px;

}

.product-tag {
  font-size: 1.5rem;
  text-transform: uppercase;
  color: aqua;
  letter-spacing: 2px;
}

.product-name {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  margin-bottom: 20px;
  transform: translateX(200px);
  opacity: 0;
  transition: transform 0.6s ease, opacity 0.6s ease;
  transition-delay: 0.5s;

}

.active .product-name {
  transform: translateX(0);
  opacity: 1;
}

.description {
  font-size: 1rem;
  line-height: 1.5;
  margin-bottom: 30px;
  max-width: 600px;

}

.btn {
  padding: 15px 10px;
  background: linear-gradient(aqua, cornflowerblue);
  border-radius: 10px;
  margin-top: 20px;
  color: black;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
}

.btn:hover {
  background: linear-gradient(cornflowerblue, aquamarine);
  transition: background-color 0.3s ease-in-out;
}


.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: 50px;
  cursor: pointer;
  background-color: cornflowerblue;
  border: 1px solid aquamarine;
  display: flex;
  justify-content: center;
  align-items: center;
  filter: drop-shadow(0 0 10px blue);
}

.arrow-btn:hover {
  background-color: aqua;
  transition: background-color 0.3s ease-in-out;
}

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

.indicator {
  width: 15px;
  height: 15px;
  border-radius: 50px;
  background-color: grey;
  cursor: pointer;
}

.numbers {
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 2rem;
  color: white;
  z-index: 5;
  font-family: 'Orbitron', sans-serif;
  position: absolute;

}



/* decoração de fundo */
.dots {
  display: flex;
  gap: 10px;
}

.dot {
  width: 40px;
  height: 5px;
  border-radius: 5px;
  background-color: grey;
  cursor: pointer;
}

.dot.active {
  background-color: aqua;
  box-shadow: inset 0 0 15px blue;
}

.tech-circle {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 0;
  pointer-events: none;
}

.circle {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(0, 255, 255, 0.2);
  box-shadow: #16213e 0 0 20px;
}

.circle:nth-child(1) {
  width: 200px;
  height: 200px;
  top: 10%;
  left: 15%;
}

.circle:nth-child(2) {
  width: 300px;
  height: 300px;
  top: 40%;
  left: 70%;
}

.circle:nth-child(3) {
  width: 150px;
  height: 150px;
  top: 70%;
  left: 30%;
}