:root {
  --primary: #0a0a0a;
  --secondary: #1a1a1a;
  --accent: #e50914;
  --white: #ffffff;
  --gray: #999999;
  --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.3);
  --shadow-hard: 0 20px 60px rgba(0, 0, 0, 0.6);
  --transition: all 0.4s ease;
  --font-main: 'Outfit', Arial, sans-serif;
}

body {
  margin: 0;
  font-family: var(--font-main);
  background: var(--primary);
  color: var(--white);
  line-height: 1.6;
}


.back-product {
  background-image: url('../img/back-pro.webp'); 
  height: 40vh;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.back-product::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,0,0,0.6), rgba(10,10,10,0.9));
}

.back-product h1 {
  position: relative;
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 2px;
  background: linear-gradient(45deg, #ff3535, #e50914);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  z-index: 1;
  animation: fadeInDown 1s ease forwards;
}


.content-container {
  max-width: 1100px;
  margin: 60px auto;
  padding: 0 20px;
}


.card {
  margin: 40px auto;
  padding: 30px;
  background: var(--secondary);
  border-radius: 16px;
  text-align: center;
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  transform: translateY(40px);
  opacity: 0;
  animation: cardReveal 0.8s ease forwards;
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: var(--shadow-hard);
}

.card img {
  width: 100%;
  max-width: 260px;
  height: auto;
  margin-bottom: 20px;
  border-radius: 12px;
  transition: var(--transition);
  filter: grayscale(30%);
}

.card:hover img {
  filter: grayscale(0) contrast(1.2);
  transform: scale(1.05);
}

.card h3 {
  font-size: 1.5rem;
  margin: 15px 0;
  background: linear-gradient(45deg, #fff, #bbb);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.card p {
  color: var(--gray);
  font-size: 1rem;
  line-height: 1.5;
  margin-bottom: 0;
}


.feature-box {
  background: var(--secondary);
  border-radius: 14px;
  box-shadow: var(--shadow-soft);
  padding: 25px 30px;
  margin-bottom: 40px;
  transition: var(--transition);
}

.feature-box:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hard);
}

.feature-box h2 {
  margin-top: 0;
  font-size: 1.8rem;
  color: var(--accent);
}

.feature-box ul {
  padding-left: 20px;
  color: var(--gray);
}


@keyframes cardReveal {
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}
.fade-in-visible {
  opacity: 1;
  transform: translateY(0);
}


.card:hover {
  transform: scale(1.03);
  box-shadow: 0 8px 20px rgba(255, 69, 0, 0.4);
  transition: all 0.4s ease-in-out;
}
.background-elements {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}


.background-elements span {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,107,53,0.15);
  animation: floatMove linear infinite;
  opacity: 0.6;
}

@keyframes floatMove {
  0% { transform: translateY(0) translateX(0) scale(1); }
  50% { transform: translateY(-100px) translateX(50px) scale(1.2); }
  100% { transform: translateY(0) translateX(0) scale(1); }
}