.product-detail {
  margin-top: 140px; /* offsets fixed navbar */
}

/* Header layout */
.product-header {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 50px;
  align-items: start;
  margin-bottom: 80px;
}

.product-image-wrapper {
  background: #f1f1f1;
  padding: 30px;
  border-radius: 12px;
  /* box-shadow: 0 8px 22px rgba(0,0,0,0.12); */
  /* border: 1px solid #000000; */
}

.product-image {
  width: 100%;
  height: auto;
  object-fit: contain;
}

/* Summary */
.product-summary h1 {
  font-size: 2rem;
  margin-bottom: 10px;
}

.model-number {
  font-size: 1.1rem;
  color: #555;
  margin-bottom: 30px;
}

/* Sections */
.product-section {
  margin-bottom: 70px;
}

.product-section h2 {
  font-size: 1.9rem;
  margin-bottom: 20px;
  color: #B00F0F;
  text-transform: uppercase;
}

/* Icon specs */
.spec-icons {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
  margin-bottom: 30px;
}

/* Features */
.feature-list {
  list-style: none;
  padding: 0;
  columns: 2;
  gap: 30px;
}

.feature-list li {
  margin-bottom: 12px;
  padding-left: 22px;
  position: relative;
}

.feature-list li::before {
  content: "✔";
  position: absolute;
  left: 0;
  color: #2a5d8f;
  font-weight: bold;
}

/* Documents */
.product-documents {
  margin-top: 60px;
  padding: 30px;
  background: #f4f7fb;
  border-radius: 16px;
}

.product-documents h3 {
  font-size: 1.6rem;
  margin-bottom: 20px;
  color: #2a5d8f;
  text-transform: uppercase;
}

.doc-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.doc-item {
  margin-bottom: 12px;
}

.doc-item a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  background: #ffffff;
  border-radius: 12px;
  border: 1px solid #e1e6ee;
  color: #2a5d8f;
  font-weight: 600;
  transition: all 0.25s ease;
}

.doc-item a:hover {
  background: #2a5d8f;
  color: #ffffff;
  transform: translateX(4px);
}

.doc-item i {
  font-size: 1.2rem;
  color: #B00F0F;
}

.doc-item a:hover i {
  color: #ffffff;
}


/* Button */
.add-to-cart-btn {
  margin-top: 20px;
  padding: 14px 34px;
  border-radius: 30px;
  border: none;
  background: #1f4568;
  color: #fff;
  font-weight: 600;
  cursor: pointer;
}

.add-to-cart-btn:hover {
  background: #16344f;
}

/* Responsive */
@media (max-width: 900px) {
  .product-header {
    grid-template-columns: 1fr;
  }

  .feature-list {
    columns: 1;
  }
}

.spec-item {
  background: #fff;
  padding: 18px;
  border-radius: 14px;
  text-align: center;
  box-shadow: 0 4px 10px rgba(0,0,0,0.08);
}

.spec-item i {
  font-size: 26px;
  color: #2a5d8f;
  margin-bottom: 8px;
}

.spec-item span {
  display: block;
  font-size: 0.85rem;
  color: #777;
}

.spec-item strong {
  font-size: 1.05rem;
}

/* PDF link */
.spec-download {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
  font-weight: 600;
}

.spec-download i {
  font-size: 20px;
}

/* Spec table */
.spec-table-wrapper {
  margin-bottom: 50px;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 6px 14px rgba(0,0,0,0.1);
}

.spec-table th,
.spec-table td {
  padding: 16px 20px;
  text-align: left;
}

.spec-table th {
  width: 40%;
  background: #f4f7fb !important;
  font-weight: 600;
}

.spec-table tr:not(:last-child) {
  border-bottom: 1px solid #e5e5e5;
}

.back-btn {
  display: inline-block;
}

.spec-section {
  margin-bottom: 40px;
}

.spec-section h2 {
  font-size: 1.5rem;
  margin-bottom: 15px;
  color: #000;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 6px 14px rgba(0,0,0,0.1);
  margin-bottom: 20px;
}

.spec-table th,
.spec-table td {
  padding: 14px 18px;
  text-align: left;
}

.spec-table th {
  width: 40%;
  background: #f3f3f3;
  font-weight: 600;
}

.spec-table tr:not(:last-child) {
  border-bottom: 1px solid #e5e5e5;
}

.product-thumb {
  width: 100%;
  height: 180px;
  object-fit: contain;
}

.product-image {
  width: 100%;
  max-width: 450px;
  object-fit: contain;
  margin-bottom: 20px;
}


/* Mobile */
@media (max-width: 900px) {
  .product-header {
    grid-template-columns: 1fr;
  }
}