/**
 * KANAHIYA SUPERMART - Product Detail Page Styles
 * Features: Image Gallery & Zoom, Pack Selector, Buying Actions, Specs Table, Review Tabs, Bought Together
 */

.ksm-product-detail-section {
  padding: 30px 0 60px;
}

.ksm-pdp-layout {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 40px;
  background: var(--ksm-white);
  border: 1px solid var(--ksm-border);
  border-radius: var(--ksm-radius-xl);
  padding: 32px;
  box-shadow: var(--ksm-shadow-xs);
  margin-bottom: 40px;
}

/* Gallery Column */
.ksm-pdp-gallery-col {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.ksm-pdp-main-img-wrap {
  position: relative;
  border-radius: var(--ksm-radius-lg);
  overflow: hidden;
  background: #f8fafc;
  border: 1px solid var(--ksm-border);
  height: 440px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ksm-pdp-main-img {
  max-width: 90%;
  max-height: 90%;
  object-fit: contain;
  transition: transform 0.3s ease;
}

.ksm-pdp-main-img-wrap:hover .ksm-pdp-main-img {
  transform: scale(1.1);
}

.ksm-pdp-thumbs-row {
  display: flex;
  gap: 12px;
}

.ksm-pdp-thumb-btn {
  width: 74px;
  height: 74px;
  border-radius: var(--ksm-radius-md);
  border: 2px solid var(--ksm-border);
  background: #f8fafc;
  overflow: hidden;
  padding: 4px;
  cursor: pointer;
  transition: var(--ksm-transition);
}

.ksm-pdp-thumb-btn.active, .ksm-pdp-thumb-btn:hover {
  border-color: var(--ksm-primary);
}

.ksm-pdp-thumb-btn img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* Info Column */
.ksm-pdp-info-col {
  display: flex;
  flex-direction: column;
}

.ksm-pdp-brand-cat-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 6px;
}

.ksm-pdp-brand-tag {
  font-size: 0.8rem;
  font-weight: 800;
  color: var(--ksm-primary-dark);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.ksm-pdp-title {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--ksm-text-heading);
  line-height: 1.25;
  margin-bottom: 12px;
}

.ksm-pdp-meta-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--ksm-border-light);
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.ksm-pdp-pricing-box {
  background: #f8fafc;
  border: 1px solid var(--ksm-border);
  border-radius: var(--ksm-radius-lg);
  padding: 16px 20px;
  margin-bottom: 20px;
}

.ksm-pdp-price-row {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.ksm-pdp-price {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--ksm-text-heading);
}

.ksm-pdp-mrp {
  font-size: 1.1rem;
  color: var(--ksm-text-muted);
  text-decoration: line-through;
}

.ksm-pdp-saving-pill {
  background: var(--ksm-primary-ultralight);
  color: var(--ksm-primary-deep);
  font-weight: 800;
  font-size: 0.88rem;
  padding: 3px 10px;
  border-radius: var(--ksm-radius-pill);
  border: 1px solid var(--ksm-primary-border);
}

.ksm-pdp-tax-label {
  font-size: 0.75rem;
  color: var(--ksm-text-muted);
  margin-top: 4px;
}

/* Pack Switcher */
.ksm-pdp-pack-select-wrap {
  margin-bottom: 20px;
}

.ksm-pdp-pack-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--ksm-text-heading);
  margin-bottom: 8px;
  display: block;
}

.ksm-pdp-pack-list {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.ksm-pdp-pack-btn {
  padding: 8px 16px;
  border-radius: var(--ksm-radius-md);
  border: 2px solid var(--ksm-border);
  background: var(--ksm-white);
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--ksm-transition);
}

.ksm-pdp-pack-btn.active, .ksm-pdp-pack-btn:hover {
  border-color: var(--ksm-primary);
  background: var(--ksm-primary-ultralight);
  color: var(--ksm-primary-deep);
}

/* Buy Action Rows */
.ksm-pdp-actions-row {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.ksm-pdp-qty-stepper {
  display: flex;
  align-items: center;
  border: 2px solid var(--ksm-border);
  border-radius: var(--ksm-radius-md);
  overflow: hidden;
  height: 48px;
}

.ksm-pdp-qty-stepper button {
  width: 44px;
  height: 100%;
  background: #f1f5f9;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--ksm-text-heading);
}

.ksm-pdp-qty-stepper input {
  width: 50px;
  text-align: center;
  font-weight: 800;
  font-size: 1.05rem;
}

.ksm-pdp-direct-btns {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
}

.ksm-pdp-trust-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  padding: 16px 0;
  border-top: 1px solid var(--ksm-border);
  border-bottom: 1px solid var(--ksm-border);
  margin-top: auto;
}

.ksm-pdp-trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--ksm-text-body);
}

.ksm-pdp-trust-item i {
  color: var(--ksm-primary-dark);
  font-size: 1.1rem;
}

/* Tabs Section */
.ksm-pdp-tabs-container {
  background: var(--ksm-white);
  border: 1px solid var(--ksm-border);
  border-radius: var(--ksm-radius-xl);
  overflow: hidden;
  box-shadow: var(--ksm-shadow-xs);
  margin-bottom: 50px;
}

.ksm-pdp-tab-nav {
  display: flex;
  background: #f8fafc;
  border-bottom: 1px solid var(--ksm-border);
  overflow-x: auto;
}

.ksm-pdp-tab-btn {
  padding: 16px 24px;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--ksm-text-muted);
  border-bottom: 3px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: var(--ksm-transition);
}

.ksm-pdp-tab-btn.active, .ksm-pdp-tab-btn:hover {
  color: var(--ksm-primary-dark);
  border-bottom-color: var(--ksm-primary);
  background: var(--ksm-white);
}

.ksm-pdp-tab-pane {
  padding: 30px;
  display: none;
}

.ksm-pdp-tab-pane.active {
  display: block;
  animation: ksmFadeUp 0.25s ease-out;
}

/* Specs Table */
.ksm-specs-table {
  width: 100%;
  border-collapse: collapse;
}

.ksm-specs-table tr:nth-child(even) {
  background: #f8fafc;
}

.ksm-specs-table th, .ksm-specs-table td {
  padding: 12px 16px;
  text-align: left;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--ksm-border-light);
}

.ksm-specs-table th {
  width: 25%;
  font-weight: 700;
  color: var(--ksm-text-heading);
}

/* Frequently Bought Together Bundle */
.ksm-bundle-box {
  background: #f0fdf4;
  border: 1.5px solid var(--ksm-primary-border);
  border-radius: var(--ksm-radius-lg);
  padding: 24px;
  margin-bottom: 45px;
}

.ksm-bundle-items-row {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin: 16px 0;
}

.ksm-bundle-item {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--ksm-white);
  padding: 10px 14px;
  border-radius: var(--ksm-radius-md);
  border: 1px solid var(--ksm-border);
}

.ksm-bundle-item img {
  width: 50px;
  height: 50px;
  object-fit: contain;
}

.ksm-bundle-plus {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--ksm-primary-dark);
}

@media (max-width: 992px) {
  .ksm-pdp-layout {
    grid-template-columns: 1fr;
  }
  .ksm-pdp-main-img-wrap {
    height: 320px;
  }
  .ksm-pdp-trust-strip {
    grid-template-columns: repeat(2, 1fr);
  }
}