* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: Arial, sans-serif;
  background: #05070d;
  color: white;
}

a {
  color: inherit;
  text-decoration: none;
}

.nav {
  width: 100%;
  padding: 18px 8%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(5, 7, 13, 0.9);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  letter-spacing: 1px;
}

 .logo-img {
  height: 60px;
  width: auto;
  object-fit: contain;
}


.nav nav {
  display: flex;
  gap: 24px;
  color: #b8c2d6;
}

.nav nav a:hover {
  color: #00b7ff;
}

.hero {
  min-height: 88vh;
  padding: 70px 8%;
  display: grid;
  grid-template-columns: 1fr 420px;
  align-items: center;
  gap: 50px;
  background:
    radial-gradient(circle at top right, rgba(0,123,255,0.25), transparent 35%),
    linear-gradient(180deg, #05070d, #080c16);
}

.eyebrow {
  color: #00b7ff;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 13px;
  font-weight: 800;
  margin-bottom: 12px;
}

.hero h1 {
  font-size: clamp(42px, 7vw, 80px);
  line-height: 0.95;
  margin-bottom: 20px;
}

.subtext {
  color: #b8c2d6;
  max-width: 540px;
  font-size: 18px;
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  gap: 14px;
  margin-top: 30px;
}

.btn {
  border: none;
  padding: 13px 20px;
  border-radius: 12px;
  font-weight: 800;
  cursor: pointer;
  display: inline-block;
}

.primary {
  background: linear-gradient(135deg, #007bff, #00d4ff);
  color: white;
}

.secondary {
  border: 1px solid rgba(255,255,255,0.18);
  color: white;
  background: rgba(255,255,255,0.06);
}

.hero-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 30px;
  padding: 30px;
  box-shadow: 0 30px 80px rgba(0,0,0,0.35);
}

.hero-card img {
  width: 100%;
  border-radius: 22px;
}

.section {
  padding: 80px 8%;
}

.section-title {
  text-align: center;
  margin-bottom: 40px;
}

.section-title h2 {
  font-size: 38px;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 24px;
}

.product-card {
  background: rgba(255,255,255,0.055);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 22px;
  padding: 18px;
  transition: 0.25s ease;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 50px rgba(0,123,255,0.16);
  border-color: rgba(0,183,255,0.45);
}

.product-card img {
  width: 100%;
  height: 190px;
  object-fit: cover;
  border-radius: 16px;
  background: white;
  margin-bottom: 16px;
}

.product-card h3 {
  font-size: 20px;
  margin-bottom: 8px;
}

.price {
  color: #00b7ff;
  font-weight: 900;
  font-size: 22px;
  margin-bottom: 8px;
}

.stock {
  color: #b8c2d6;
  margin-bottom: 14px;
}

.sold {
  color: #ff4d4d;
  font-weight: 800;
}

.product-card button {
  width: 100%;
}

.product-card button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.features {
  padding: 50px 8%;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 22px;
}

.feature {
  background: rgba(255,255,255,0.055);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 22px;
  padding: 24px;
}

.feature h3 {
  margin-bottom: 10px;
  color: #00b7ff;
}

.feature p {
  color: #b8c2d6;
  line-height: 1.5;
}

.faq {
  max-width: 900px;
  margin: auto;
}

details {
  background: rgba(255,255,255,0.055);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 16px;
  padding: 18px;
  margin-bottom: 14px;
}

summary {
  cursor: pointer;
  font-weight: 800;
}

details p {
  color: #b8c2d6;
  margin-top: 12px;
  line-height: 1.5;
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.78);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 99;
}

.modal.show {
  display: flex;
}

.modal-box {
  width: 100%;
  max-width: 460px;
  background: #0b1020;
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 24px;
  padding: 22px;
  position: relative;
}

.modal-box img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  border-radius: 16px;
  background: white;
  margin-bottom: 18px;
}

.close {
  position: absolute;
  top: 12px;
  right: 16px;
  background: transparent;
  color: white;
  border: none;
  font-size: 34px;
  cursor: pointer;
}

#modalPrice {
  color: #00b7ff;
  font-size: 24px;
  font-weight: 900;
  margin: 10px 0;
}

#modalStock,
#modalDesc {
  color: #b8c2d6;
  margin-bottom: 12px;
}

@media (max-width: 850px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .subtext {
    margin: auto;
  }

  .hero-buttons {
    justify-content: center;
    flex-wrap: wrap;
  }

  .nav {
    flex-direction: column;
    gap: 14px;
  }
}