/* ============================================================
   STORE STYLESHEET — organized by section
   ============================================================
   1.  Root Variables & Reset
   2.  Top Utility Bar
   3.  Site Header (logo, search, account actions)
   4.  Primary Navigation
   5.  Hero Carousel
   6.  Trust Strip
   7.  Generic Section Wrapper
   8.  Category Grid
   9.  Product Grid (cards)
   10. Why Choose Us
   11. About Band
   12. Testimonials
   13. Footer
   14. Page Shell / Cart / Checkout Utilities
   15. Product Detail Page
   16. Responsive Overrides
   ============================================================ */

/* ── 1. Root Variables & Reset ─────────────────────────────── */
:root {
  --ink: #0b1d45;
  --blue: #0758bd;
  --blue-dark: #063d89;
  --sky: #eef7ff;
  --line: #dce7f5;
  --muted: #62728f;
  --paper: #ffffff;
  --gold: #f7a622;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #f7fbff;
  color: var(--ink);
  font-family: "Arial Narrow", "Helvetica Neue", sans-serif;
}

a {
  color: inherit;
}

/* ── 2. Top Utility Bar ────────────────────────────────────── */
.store-topbar {
  background: #f8fbff;
  border-bottom: 1px solid var(--line);
  color: #53647f;
  font-size: 0.74rem;
}

.store-topbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 28px;
}

.store-utility,
.store-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

/* ── 3. Site Header ────────────────────────────────────────── */
.store-header {
  background: var(--paper);
}

.store-header-row {
  min-height: 78px;
  display: grid;
  grid-template-columns: 200px minmax(220px, 1fr) auto;
  align-items: center;
  gap: 2rem;
}

.store-brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.store-logo {
  display: block;
  width: 174px;
  height: auto;
}

.store-search {
  display: flex;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 3px;
  overflow: hidden;
}

.store-search input,
.store-search select {
  border: 0;
  outline: 0;
  padding: 0 0.8rem;
  background: #fff;
  font-size: 0.78rem;
}

.store-search input {
  flex: 1;
  min-width: 0;
}

.store-search select {
  width: 145px;
  border-left: 1px solid var(--line);
  color: var(--muted);
}

.store-search button {
  width: 44px;
  border: 0;
  background: var(--blue);
  color: #fff;
}

.store-actions {
  display: flex;
  gap: 1.1rem;
  align-items: center;
}

.store-action {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  text-decoration: none;
  font-size: 0.68rem;
  font-weight: 700;
  line-height: 1.05;
}

.store-action i {
  color: var(--blue);
  font-size: 1.25rem;
}

/* ── 4. Primary Navigation ─────────────────────────────────── */
.store-nav {
  background: linear-gradient(90deg, #064ca8, #0870cf);
  box-shadow: 0 2px 6px rgba(8, 68, 151, 0.18);
}

.store-nav-list {
  display: flex;
  margin: 0;
  padding: 0;
  list-style: none;
  align-items: center;
}

.store-nav-list a {
  display: block;
  color: #fff;
  padding: 0.65rem 1rem;
  font-size: 0.68rem;
  font-weight: 800;
  text-decoration: none;
  text-transform: uppercase;
}

.store-nav-list a:hover,
.store-nav-list a.active {
  background: rgba(255, 255, 255, 0.16);
}

.store-nav-toggle {
  display: none;
  color: #fff;
  border: 0;
  background: none;
  padding: 0.7rem 0;
}

/* ── 5. Hero Carousel ──────────────────────────────────────── */
.hero-carousel,
.hero-empty {
  background: #e6f4ff;
}

.hero-slide {
  position: relative;
  height: 390px;
  overflow: hidden;
  background: linear-gradient(90deg, #f8fcff 0%, #d6efff 100%);
}

.carousel-item.hero-slide {
  display: none;
}

.carousel-item.hero-slide.active,
.carousel-item.hero-slide.carousel-item-next,
.carousel-item.hero-slide.carousel-item-prev {
  display: block;
}

.hero-slide::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0.68) 0%,
    rgba(255, 255, 255, 0.42) 38%,
    rgba(255, 255, 255, 0) 68%
  );
}

.hero-slide-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-slide .container {
  position: relative;
  z-index: 3;
  display: flex;
  align-items: center;
  height: 390px;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 3;
  max-width: 490px;
  padding: 4rem 0;
}

.hero-content p,
.hero-actions {
  pointer-events: auto;
}

.hero-content h1 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 900;
  line-height: 0.98;
  letter-spacing: 0;
}

.hero-content p {
  color: #314664;
  font-size: 0.93rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.45rem;
}

.btn-store {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0.65rem 1rem;
  background: var(--blue);
  border: 1px solid var(--blue);
  border-radius: 3px;
  color: #fff;
  font-size: 0.7rem;
  font-weight: 800;
  text-decoration: none;
  text-transform: uppercase;
}

.btn-store:hover {
  background: var(--blue-dark);
  color: #fff;
}

.btn-store-outline {
  background: #fff;
  color: var(--blue);
}

/* ── 6. Trust Strip ────────────────────────────────────────── */
.trust-strip {
  position: relative;
  z-index: 4;
  margin-top: 1.5rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 12px 28px rgba(11, 29, 69, 0.12);
}

.trust-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  min-height: 70px;
  padding: 0.7rem;
  border-right: 1px solid var(--line);
  font-size: 0.64rem;
}

.trust-item:last-child {
  border-right: 0;
}

.trust-item i {
  color: var(--blue);
  font-size: 1.4rem;
}

.trust-item strong,
.trust-item span {
  display: block;
}

.trust-item span {
  color: var(--muted);
  font-size: 0.58rem;
}

/* ── 7. Generic Section Wrapper ────────────────────────────── */
.store-section {
  padding: 2.6rem 0;
}

.store-section h2 {
  margin: 0 0 1.2rem;
  text-align: center;
  font-size: 1.12rem;
  font-weight: 900;
  text-transform: uppercase;
}

/* ── 8. Category Grid ──────────────────────────────────────── */
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(112px, 1fr));
  gap: 0.55rem;
}

.category-tile {
  display: block;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  text-align: center;
  text-decoration: none;
}

.category-tile img,
.category-placeholder {
  display: block;
  width: 100%;
  height: 70px;
  object-fit: cover;
  background: var(--sky);
}

.category-tile strong {
  display: block;
  padding: 0.42rem 0.25rem 0.08rem;
  font-size: 0.62rem;
}

.category-tile small {
  display: block;
  padding-bottom: 0.42rem;
  color: var(--blue);
  font-size: 0.58rem;
}

/* ── 9. Product Grid (cards) ───────────────────────────────── */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.75rem;
}

.prod-related .product-grid {
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
}

.product-tile {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  display: flex;
  flex-direction: column;
}

.product-badge {
  position: absolute;
  top: 0.55rem;
  left: 0.55rem;
  z-index: 1;
  padding: 0.2rem 0.4rem;
  border-radius: 2px;
  background: var(--blue);
  color: #fff;
  font-size: 0.55rem;
  font-weight: 800;
}

.product-image,
.product-placeholder {
  width: 100%;
  height: 130px;
  object-fit: cover;
  background: var(--sky);
}

.product-tile-body {
  padding: 0.65rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.product-tile h3 {
  margin: 0;
  font-size: 0.8rem;
  font-weight: 900;
  min-height: 2.2rem;
}

.product-tile .product-meta {
  min-height: 2rem;
  margin: 0.2rem 0;
  color: var(--muted);
  font-size: 0.62rem;
}

.product-price {
  font-size: 0.9rem;
  font-weight: 900;
}

.product-tile .btn-store {
  width: 100%;
  min-height: 28px;
  margin-top: auto;
  padding-top: 0.55rem;
  padding-bottom: 0.38rem;
  padding-left: 0.38rem;
  padding-right: 0.38rem;
  font-size: 0.56rem;
}

/* ── 10. Why Choose Us ─────────────────────────────────────── */
.why-choose {
  background: #fff;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 2.8rem 0;
}

.why-choose-grid {
  display: grid;
  grid-template-columns: 44% 56%;
  gap: 2.5rem;
  align-items: center;
}

.why-choose-image {
  overflow: hidden;
  border-radius: 14px;
  box-shadow: 0 4px 18px rgba(7, 88, 189, 0.1);
}

.why-choose-image img {
  display: block;
  width: 100%;
  height: 380px;
  object-fit: cover;
  object-position: 30% 40%;
}

.why-choose-content {
  padding: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.why-choose-content h2 {
  margin: 0 0 1.8rem;
  text-align: center;
  font-size: 1.05rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink);
}

.benefit-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.benefit-card {
  text-align: center;
  padding: 0 0.15rem;
}

.benefit-card > i {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  border: 2px solid #bdd4f0;
  color: var(--blue);
  font-size: 1.3rem;
  margin-bottom: 0.75rem;
}

.benefit-card h3 {
  margin: 0 0 0.45rem;
  font-size: 0.76rem;
  font-weight: 900;
  color: var(--ink);
}

.benefit-card p {
  margin: 0;
  color: #6b7a96;
  font-size: 0.67rem;
  line-height: 1.55;
}

/* ── 11. About Band ────────────────────────────────────────── */
.about-band {
  background: #fff;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.about-image {
  min-height: 265px;
  width: 100%;
  object-fit: cover;
  background: var(--sky);
}

.about-copy {
  font-size: 0.85rem;
  color: #344864;
}

.about-copy h2 {
  text-align: left;
}

/* ── 12. Testimonials ──────────────────────────────────────── */
.testimonial-heading {
  text-align: center;
  font-size: 1.12rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1.5rem;
}

.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

.testimonial {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 1.25rem 1.1rem;
}

.testimonial-stars {
  color: var(--gold);
  font-size: 0.82rem;
  margin-bottom: 0.5rem;
}

.testimonial p {
  margin: 0 0 0.75rem;
  color: #2c3c55;
  font-size: 0.76rem;
  line-height: 1.6;
}

.testimonial cite {
  color: var(--muted);
  font-size: 0.68rem;
  font-style: normal;
  font-weight: 700;
}

/* ── 13. Footer ─────────────────────────────────────────────── */
.store-footer {
  background: #082355;
  color: #e1edff;
}

.footer-subscribe {
  background: linear-gradient(90deg, #0554b4, #0767c4);
  position: relative;
  overflow: hidden;
}

.footer-subscribe-inner {
  display: grid;
  grid-template-columns: 1fr minmax(240px, 380px);
  gap: 1rem;
  align-items: center;
  padding: 1.35rem 0;
}

.footer-subscribe-copy {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.footer-subscribe-copy > i {
  font-size: 2.3rem;
  flex-shrink: 0;
}

.footer-subscribe h2 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.footer-subscribe p {
  margin: 0.3rem 0 0;
  font-size: 0.72rem;
}

.footer-subscribe form {
  display: flex;
}

.footer-subscribe input {
  min-width: 0;
  flex: 1;
  border: 0;
  padding: 0.72rem 0.9rem;
  font-size: 0.72rem;
}

.footer-subscribe button {
  border: 0;
  padding: 0.72rem 1rem;
  background: var(--ink);
  color: #fff;
  font-size: 0.63rem;
  font-weight: 800;
  white-space: nowrap;
}

.footer-subscribe-deco {
  position: absolute;
  right: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
  width: 140px;
  height: 140px;
  opacity: 0.14;
  pointer-events: none;
}

.footer-main {
  padding: 2rem 0 1.7rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.45fr repeat(4, 1fr);
  gap: 1.75rem;
}

.footer-logo {
  width: 148px;
  height: auto;
  filter: brightness(0) invert(1);
}

.footer-brand-column > p {
  max-width: 180px;
}

.footer-main h3 {
  margin: 0 0 0.8rem;
  color: #fff;
  font-size: 0.85rem;
  font-weight: 900;
}

.footer-main p,
.footer-main li,
.footer-main a {
  color: #c5d6f1;
  font-size: 0.7rem;
  line-height: 1.65;
  text-decoration: none;
}

.footer-main ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-main p i {
  width: 16px;
  margin-right: 0.35rem;
  color: #fff;
}

.footer-social {
  display: flex;
  gap: 0.45rem;
  margin-top: 0.8rem;
}

.footer-social span {
  display: grid;
  width: 25px;
  height: 25px;
  place-items: center;
  border-radius: 50%;
  background: #0758bd;
  color: #fff;
  font-size: 0.67rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  padding: 0.75rem 0;
  color: #aac1e5;
  font-size: 0.62rem;
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.footer-trust {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.footer-trust-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 78px;
  height: 78px;
  border-radius: 50%;
  border: 2px solid #edc34d;
  padding: 0.45rem;
  text-align: center;
  flex-shrink: 0;
}

.footer-trust-badge > i {
  font-size: 1.35rem;
  color: #edc34d;
  margin-bottom: 0.22rem;
}

.footer-trust-badge > span {
  color: #fff;
  font-size: 0.42rem;
  font-weight: 800;
  text-transform: uppercase;
  line-height: 1.3;
}

/* ── 14. Page Shell / Cart / Checkout Utilities ────────────── */
.page-shell {
  padding: 2.4rem 0;
}

.page-title {
  margin-bottom: 1.4rem;
  font-size: 1.6rem;
  font-weight: 900;
}

.cart-quantity-input {
  max-width: 70px;
}

.checkout-summary-card {
  top: 20px;
}

.payment-method-card {
  border: 1px solid var(--line);
}

.payment-details {
  display: none;
}

.payment-details.is-visible {
  display: block;
}

/* ── 15. Product Detail Page ───────────────────────────────── */
.prod-breadcrumb ol {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  list-style: none;
  margin: 0 0 1.4rem;
  padding: 0;
  font-size: 0.72rem;
}

.prod-breadcrumb li + li::before {
  content: "/";
  color: var(--muted);
  margin-right: 0.4rem;
}

.prod-breadcrumb a {
  color: var(--blue);
  text-decoration: none;
}

.prod-breadcrumb li:last-child {
  color: var(--muted);
}

.prod-layout {
  display: grid;
  grid-template-columns: 44% 56%;
  gap: 2.5rem;
  align-items: start;
  margin-bottom: 2.5rem;
}

.prod-image-main {
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--sky);
}

.prod-image-main img {
  display: block;
  width: 100%;
  height: 420px;
  object-fit: contain;
  background: var(--sky);
}

.prod-image-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 420px;
  border-radius: 12px;
  background: var(--sky);
  border: 1px solid var(--line);
  color: var(--blue);
  font-size: 4rem;
}

.prod-thumbs {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.6rem;
  flex-wrap: wrap;
}

.prod-thumb {
  width: 64px;
  height: 64px;
  object-fit: cover;
  border-radius: 8px;
  border: 2px solid transparent;
  cursor: pointer;
}

.prod-thumb.active,
.prod-thumb:hover {
  border-color: var(--blue);
}

.prod-name {
  margin: 0 0 0.25rem;
  font-size: 1.45rem;
  font-weight: 900;
  color: var(--ink);
  line-height: 1.15;
}

.prod-scientific {
  margin: 0 0 0.7rem;
  color: var(--muted);
  font-size: 0.78rem;
  font-style: italic;
}

.prod-stars {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  margin-bottom: 0.9rem;
  color: var(--gold);
  font-size: 0.88rem;
}

.prod-reviews {
  color: var(--muted);
  font-size: 0.7rem;
  margin-left: 0.2rem;
}

.prod-short-desc {
  color: #344864;
  font-size: 0.82rem;
  line-height: 1.65;
  margin: 0 0 1.1rem;
}

.prod-price-line {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  margin-bottom: 1.3rem;
  padding-bottom: 1.2rem;
  border-bottom: 1px solid var(--line);
}

.prod-price {
  font-size: 1.7rem;
  font-weight: 900;
  color: var(--blue);
}

.prod-price-unit {
  font-size: 0.78rem;
  color: var(--muted);
}

.prod-sizes-label {
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink);
  margin-bottom: 0.5rem;
}

.prod-sizes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.4rem;
  margin-bottom: 1.1rem;
}

.prod-size-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 0.3rem;
  border: 1.5px solid var(--line);
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.73rem;
  font-weight: 700;
  color: var(--muted);
  background: #fff;
  transition: all 0.15s;
  user-select: none;
}

.prod-size-btn:hover {
  border-color: var(--blue);
  color: var(--blue);
}

.prod-size-btn.selected {
  border-color: var(--blue);
  background: var(--blue);
  color: #fff;
}

.prod-qty-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.9rem;
}

.prod-qty-label {
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink);
  min-width: 70px;
}

.prod-qty-stepper {
  display: flex;
  align-items: stretch;
  border: 1.5px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
  height: 36px;
}

.qty-btn {
  width: 36px;
  border: 0;
  background: var(--sky);
  color: var(--ink);
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  line-height: 1;
}

.qty-btn:hover {
  background: var(--line);
}

.prod-qty-stepper input {
  width: 52px;
  border: 0;
  border-left: 1.5px solid var(--line);
  border-right: 1.5px solid var(--line);
  text-align: center;
  font-size: 0.88rem;
  font-weight: 700;
  background: #fff;
}

.prod-total-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.2rem;
}

.prod-total-label {
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink);
  min-width: 70px;
}

.prod-total-price {
  font-size: 1.3rem;
  font-weight: 900;
  color: var(--ink);
}

.prod-add-btn {
  width: 100%;
  min-height: 48px;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  margin-bottom: 1rem;
}

.prod-meta-badges {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.prod-meta-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.7rem;
  color: #1e5a30;
}

.prod-meta-badge i {
  color: #2c9b49;
  font-size: 0.8rem;
}

.prod-out-stock {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: #fff3f3;
  color: #b91c1c;
  border: 1px solid #fca5a5;
  border-radius: 6px;
  padding: 0.65rem 1rem;
  font-size: 0.78rem;
  font-weight: 700;
  margin-top: 0.5rem;
}

.prod-tabs {
  margin-bottom: 2.5rem;
}

.prod-tab-nav {
  display: flex;
  border-bottom: 2px solid var(--line);
}

.prod-tab-btn {
  border: 0;
  background: none;
  padding: 0.75rem 1.4rem;
  font-size: 0.73rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
}

.prod-tab-btn:hover {
  color: var(--ink);
}

.prod-tab-btn.active {
  color: var(--blue);
  border-bottom-color: var(--blue);
}

.prod-tab-content {
  display: none;
  border: 1px solid var(--line);
  border-top: 0;
  border-radius: 0 0 8px 8px;
}

.prod-tab-content.active {
  display: block;
}

.prod-tab-body {
  padding: 1.5rem;
  font-size: 0.82rem;
  line-height: 1.7;
  color: #344864;
}

.prod-tab-body h4 {
  font-size: 0.92rem;
  font-weight: 900;
  margin: 0 0 0.8rem;
  color: var(--ink);
}

.prod-tab-body ul {
  padding-left: 1.2rem;
}

.prod-specs-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.78rem;
}

.prod-specs-table th,
.prod-specs-table td {
  padding: 0.55rem 0.75rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.prod-specs-table th {
  width: 38%;
  font-weight: 800;
  color: var(--ink);
  background: var(--sky);
}

.prod-specs-table td {
  color: #344864;
}

.prod-faq-item {
  border-bottom: 1px solid var(--line);
}

.prod-faq-item summary {
  padding: 0.75rem 0;
  font-weight: 700;
  font-size: 0.8rem;
  cursor: pointer;
  list-style: none;
  color: var(--ink);
}

.prod-faq-item summary::-webkit-details-marker {
  display: none;
}

.prod-faq-item summary::after {
  content: "+";
  float: right;
  color: var(--blue);
}

.prod-faq-item[open] summary::after {
  content: "\2212";
}

.prod-faq-item p {
  padding: 0 0 0.75rem;
  color: var(--muted);
  margin: 0;
  font-size: 0.78rem;
}

/* ── Related Products slider ────────────────────────────────
   The track is rendered twice back-to-back in the HTML. A JS
   loop continuously increases a translateX offset; once it
   passes one copy's width it wraps back to 0 — since copy 2 is
   identical to copy 1, the wrap is invisible (no seam, no jump).
   Movement is JS-driven (not a CSS @keyframes animation) so the
   prev/next buttons can nudge the position directly while the
   automatic scroll keeps running from wherever it left off. */
.prod-related {
  margin-bottom: 2.5rem;
}

.prod-related-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.prod-related-header > h3 {
  font-size: 0.92rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0;
  color: var(--ink);
}

.related-nav-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1.5px solid var(--line);
  background: #fff;
  color: var(--blue);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.related-nav-btn:hover {
  background: var(--sky);
  border-color: var(--blue);
}

.related-slider {
  --related-gap: 0.75rem;
  --related-items: 3;
  container-type: inline-size;
  overflow: hidden;
  position: relative;
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 24px, #000 calc(100% - 24px), transparent 100%);
  mask-image: linear-gradient(90deg, transparent 0, #000 24px, #000 calc(100% - 24px), transparent 100%);
}

.related-track {
  display: flex;
  width: max-content;
  gap: var(--related-gap);
  will-change: transform;
}

.related-slide-item {
  flex: 0 0 calc((100cqw - (var(--related-items) - 1) * var(--related-gap)) / var(--related-items));
}

/* ── 16. Responsive Overrides ──────────────────────────────── */

/* Tablet / small desktop (≤ 991px) */
@media (max-width: 991px) {
  .store-header-row {
    grid-template-columns: 1fr auto;
    gap: 0.8rem;
    padding: 0.8rem 0;
  }
  .store-search {
    grid-column: 1 / -1;
    grid-row: 2;
  }
  .store-nav-toggle {
    display: block;
  }
  .store-nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding-bottom: 0.5rem;
  }
  .store-nav-list.show {
    display: flex;
  }
  .store-nav-list a {
    padding: 0.6rem 0;
  }
  .hero-slide {
    height: 330px;
  }
  .hero-slide .container {
    height: 330px;
  }
  .hero-slide::after {
    background: rgba(255, 255, 255, 0.5);
  }
  .footer-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .why-choose-grid {
    grid-template-columns: 1fr;
  }
  .why-choose-image img {
    min-height: 220px;
    max-height: 280px;
  }
  .benefit-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-subscribe-deco {
    display: none;
  }
  .footer-trust {
    flex-wrap: wrap;
    gap: 0.4rem;
  }
  .prod-layout {
    grid-template-columns: 1fr;
  }
  .related-slider {
    --related-items: 3;
  }
}

/* Mobile (≤ 767px) */
@media (max-width: 767px) {
  .store-topbar .container {
    justify-content: center;
  }
  .store-links {
    display: none;
  }
  .store-header-row {
    grid-template-columns: auto auto;
    gap: 0.6rem;
    padding: 0.8rem 0;
  }
  .store-search {
    grid-column: 1 / -1;
    grid-row: 2;
    margin-top: 0.5rem;
  }
  .store-actions {
    gap: 0.6rem;
  }
  .store-action {
    gap: 0.3rem;
    font-size: 0.56rem;
  }
  .store-action i {
    font-size: 1.05rem;
  }
  .hero-content {
    padding: 2.5rem 0;
  }
  .trust-strip {
    border-radius: 0;
  }
  .trust-item {
    border-right: 0;
    border-bottom: 1px solid var(--line);
    justify-content: flex-start;
  }
  .testimonial-grid {
    grid-template-columns: 1fr;
  }
  .footer-subscribe-inner {
    grid-template-columns: 1fr;
    gap: 1rem;
    padding: 1.25rem;
  }
  .footer-main {
    padding: 1.75rem 1.25rem 1.5rem;
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem 1rem;
  }
  .footer-grid > section:first-child {
    grid-column: 1 / -1;
  }
  .footer-grid > section {
    padding: 1.25rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  }
  .footer-grid > section:last-child {
    border-bottom: 0;
  }
  .footer-main h3 {
    margin-bottom: 0.6rem;
  }
  .footer-main ul li {
    padding: 0.28rem 0;
  }
  .footer-main p {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin: 0 0 0.65rem;
  }
  .footer-main p i {
    width: auto;
    margin-right: 0;
    margin-top: 0.15rem;
    flex-shrink: 0;
  }
  .footer-bottom-inner {
    align-items: flex-start;
    flex-direction: column;
  }
  .footer-trust {
    flex-wrap: wrap;
  }
  .why-choose-content {
    padding: 1.4rem 1rem;
  }
  .prod-sizes {
    grid-template-columns: repeat(3, 1fr);
  }
  .prod-tab-nav {
    overflow-x: auto;
  }
  .prod-tab-btn {
    padding: 0.65rem 0.8rem;
    white-space: nowrap;
  }
  .related-slider {
    --related-items: 2;
  }
}