* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Inter", sans-serif;
}

body {
  background: #f8fafc;
  color: #0f172a;
}

.container {
  max-width: 1100px;
  margin: auto;
  padding: 40px 20px;
}

/* HERO */
.product-hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}

.product-hero img {
  width: 100%;
  border-radius: 18px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.15);
}

.product-title {
  font-size: 36px;
  margin-bottom: 12px;
}

.price {
  font-size: 26px;
  font-weight: 700;
  color: #2563eb;
  margin-bottom: 16px;
}

.short-desc {
  font-size: 16px;
  color: #475569;
  margin-bottom: 22px;
  line-height: 1.6;
}

/* BUTTONS */
.cta-group {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}

.btn-primary {
  background: linear-gradient(135deg, #2563eb, #1e40af);
  color: #fff;
  padding: 14px 26px;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 600;
}

.btn-outline {
  border: 2px solid #2563eb;
  color: #2563eb;
  padding: 12px 24px;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 600;
}

/* DETAILS */
.details {
  margin-top: 70px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.details h3 {
  font-size: 22px;
  margin-bottom: 16px;
}

.details ul {
  padding-left: 20px;
}

.details li {
  margin-bottom: 10px;
  color: #334155;
}

/* BEST FOR */
.best-for {
  background: #ecfeff;
  padding: 22px;
  border-radius: 14px;
  border-left: 6px solid #06b6d4;
}
/* TAG */
.tag {
  display: inline-block;
  background: #ecfeff;
  color: #0e7490;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 12px;
}

/* IMAGE WRAP */
.product-image-wrap img {
  width: 100%;
  border-radius: 20px;
  box-shadow: 0 25px 60px rgba(0,0,0,0.15);
}

/* DETAIL BOX */
.detail-box {
  background: #ffffff;
  padding: 28px;
  border-radius: 18px;
  box-shadow: 0 15px 40px rgba(0,0,0,0.08);
}

.feature-list li {
  margin-bottom: 10px;
  font-size: 15px;
}

/* VALUE SECTION */
.value-section {
  margin-top: 80px;
  text-align: center;
}

.value-section h2 {
  font-size: 28px;
  margin-bottom: 30px;
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.value-card {
  background: linear-gradient(135deg, #2563eb, #1e40af);
  color: white;
  padding: 22px;
  border-radius: 16px;
  font-weight: 600;
  font-size: 15px;
}
/* CHECKOUT MODAL */
.checkout-modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 999;
}

.checkout-box {
  background: #fff;
  width: 100%;
  max-width: 420px;
  padding: 30px;
  border-radius: 14px;
  position: relative;
  animation: pop 0.3s ease;
}

@keyframes pop {
  from { transform: scale(0.95); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.close-modal {
  position: absolute;
  top: 15px;
  right: 18px;
  background: none;
  border: none;
  font-size: 26px;
  cursor: pointer;
}

.checkout-box h2 {
  margin-bottom: 8px;
}

.checkout-product {
  font-size: 14px;
  margin-bottom: 20px;
  color: #555;
}

.form-group {
  margin-bottom: 15px;
}

.form-group label {
  display: block;
  font-size: 14px;
  margin-bottom: 5px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 10px;
  border-radius: 8px;
  border: 1px solid #ddd;
  font-size: 14px;
}

.w-100 {
  width: 100%;
}


/* RESPONSIVE */
@media (max-width: 768px) {
  .product-hero {
    grid-template-columns: 1fr;
  }
  .details {
    grid-template-columns: 1fr;
  }
  .product-title {
    font-size: 28px;
  }
    .value-section h2 {
    font-size: 24px;
  }
}