/* ================================================================
   Product Detail — Clean Custom CSS (prd-* namespace)
   Uses variables from assets/css/style.css :root
   ================================================================ */

/* ── Breadcrumbs ──────────────────────────────────────────── */
.prd-bc {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.75rem;
  color: var(--muted-fg);
}

.prd-bc a { color: var(--muted-fg); transition: color var(--transition-fast); }
.prd-bc a:hover { color: var(--primary); }
.prd-bc span { color: var(--fg); }

.prd-bc svg {
  width: 0.75rem;
  height: 0.75rem;
}

/* ── Main Layout ──────────────────────────────────────────── */
.prd-row {
  display: grid;
  gap: 2.5rem;
  margin-top: 2rem;
}

@media (min-width: 1024px) {
  .prd-row { grid-template-columns: 1fr 1fr; }
}

/* ── Gallery ──────────────────────────────────────────────── */
.prd-gallery-main {
  overflow: hidden;
  border-radius: var(--radius-2xl);
  border: 1px solid var(--border);
  background: var(--surface);
}

.prd-gallery-main img {
  width: 100%;
  display: block;
}

.prd-gallery-thumbs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.prd-gallery-thumb {
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--surface);
  cursor: pointer;
  transition: border-color var(--transition-fast);
}

.prd-gallery-thumb:hover { border-color: rgba(57,255,20,0.5); }
.prd-gallery-thumb.is-active { border-color: var(--primary); }

.prd-gallery-thumb img {
  aspect-ratio: 1/1;
  width: 100%;
  object-fit: cover;
}

/* ── Product Meta ─────────────────────────────────────────── */
.prd-cat {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--primary);
  margin: 0;
}

.prd-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.875rem;
  text-transform: uppercase;
  margin: 0.5rem 0 0;
  letter-spacing: -0.01em;
  line-height: 1;
}

@media (min-width: 640px) { .prd-title { font-size: 2.25rem; } }

.prd-rating {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
  font-size: 0.875rem;
  color: var(--muted-fg);
}

.prd-rating-stars {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.prd-rating-stars svg {
  width: 1rem;
  height: 1rem;
  fill: var(--primary);
  color: var(--primary);
}

/* ── Price ────────────────────────────────────────────────── */
.prd-price-row {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin-top: 1rem;
}

.prd-price {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--primary);
}

.prd-price-old {
  font-size: 1rem;
  color: var(--muted-fg);
  text-decoration: line-through;
}

.prd-price-note {
  font-size: 0.75rem;
  color: var(--muted-fg);
}

.prd-fitting {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--muted-fg);
  white-space: nowrap;
  align-self: center;
  margin-left: 0.25rem;
}

/* ── Stock ────────────────────────────────────────────────── */
.prd-stock {
  margin-top: 0.75rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary);
}

/* ── Description ──────────────────────────────────────────── */
.prd-desc {
  margin-top: 1.5rem;
  color: var(--muted-fg);
  line-height: 1.65;
}

/* ── Features ─────────────────────────────────────────────── */
.prd-features {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.875rem;
}

.prd-feature {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.prd-feature svg {
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
  color: var(--primary);
}

/* ── Actions ──────────────────────────────────────────────── */
.prd-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-top: 2rem;
}

.prd-qty {
  display: inline-flex;
  align-items: center;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

.prd-qty-btn {
  padding: 0.5rem 0.75rem;
  background: none;
  border: none;
  color: var(--fg);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.prd-qty-btn:hover { background: var(--muted); }
.prd-qty-btn svg { width: 1rem; height: 1rem; }

.prd-qty-val {
  width: 2.5rem;
  text-align: center;
  font-weight: 600;
}

.prd-add {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  white-space: nowrap;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  height: 2.5rem;
  padding: 0 2rem;
  border-radius: var(--radius-md);
  background: var(--gradient-primary);
  color: var(--primary-fg);
  box-shadow: var(--shadow-glow);
  border: none;
  transition: filter var(--transition-fast), box-shadow var(--transition-fast);
}

.prd-add:hover { box-shadow: var(--shadow-glow-strong); filter: brightness(1.1); }
.prd-add svg { width: 1rem; height: 1rem; flex-shrink: 0; }

/* ── Trust Badges ─────────────────────────────────────────── */
.prd-trust {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  margin-top: 2rem;
  font-size: 0.75rem;
}

@media (min-width: 640px) { .prd-trust { grid-template-columns: repeat(3, 1fr); } }

.prd-trust-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--card);
  padding: 0.75rem;
}

.prd-trust-item svg { width: 1rem; height: 1rem; flex-shrink: 0; color: var(--primary); }

/* ── Specs ────────────────────────────────────────────────── */
.prd-specs {
  margin-top: 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--card);
  padding: 1rem;
  font-size: 0.875rem;
}

.prd-specs-title {
  font-weight: 600;
  margin: 0;
}

.prd-specs-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem 0;
  margin-top: 0.75rem;
  color: var(--muted-fg);
}

.prd-specs-list dt { color: var(--muted-fg); }
.prd-specs-list dd { color: var(--fg); margin: 0; }

/* ── About Section ────────────────────────────────────────── */
.prd-about-row {
  display: grid;
  gap: 2.5rem;
  margin-top: 4rem;
}

@media (min-width: 1024px) { .prd-about-row { grid-template-columns: 2fr 1fr; } }

.prd-about-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  text-transform: uppercase;
  margin: 0 0 1rem;
}

@media (min-width: 640px) { .prd-about-title { font-size: 1.875rem; } }

.prd-about-text {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  color: var(--muted-fg);
  line-height: 1.65;
}

.prd-about-text p { margin: 0; }

.prd-about-subtitle {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  text-transform: uppercase;
  color: var(--fg);
  padding-top: 1rem;
  margin: 0;
}

.prd-perks {
  display: grid;
  gap: 0.5rem;
}

@media (min-width: 640px) { .prd-perks { grid-template-columns: 1fr 1fr; } }

.prd-perk {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  color: var(--fg);
  font-size: 0.875rem;
}

.prd-perk svg {
  width: 1rem;
  height: 1rem;
  margin-top: 0.125rem;
  flex-shrink: 0;
  color: var(--primary);
}

/* ── Sidebar ──────────────────────────────────────────────── */
.prd-sidebar {
  border-radius: var(--radius-2xl);
  border: 1px solid var(--border);
  background: var(--card);
  padding: 1.5rem;
}

.prd-sidebar-heading {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--primary);
  margin: 0;
}

.prd-sidebar-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1rem;
  font-size: 0.875rem;
}

.prd-sidebar-item {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.prd-sidebar-item svg {
  width: 1rem;
  height: 1rem;
  margin-top: 0.125rem;
  flex-shrink: 0;
  color: var(--primary);
}

/* ── Reviews Section ──────────────────────────────────────── */
.prd-reviews {
  margin-top: 4rem;
}

.prd-reviews-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  text-transform: uppercase;
  margin: 0 0 1.5rem;
}

@media (min-width: 640px) { .prd-reviews-title { font-size: 1.875rem; } }

.prd-reviews-summary {
  display: grid;
  gap: 2rem;
  border-radius: var(--radius-2xl);
  border: 1px solid var(--border);
  background: var(--card);
  padding: 1.5rem;
}

@media (min-width: 768px) { .prd-reviews-summary { grid-template-columns: 1fr 2fr; } }

.prd-reviews-score {
  text-align: center;
}

@media (min-width: 768px) {
  .prd-reviews-score {
    border-right: 1px solid var(--border);
    padding-right: 1.5rem;
  }
}

.prd-reviews-score-num {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  color: var(--primary);
}

.prd-reviews-score-stars {
  display: inline-flex;
  align-items: center;
  gap: 0.125rem;
}

.prd-reviews-score-stars svg {
  width: 1.25rem;
  height: 1.25rem;
  fill: var(--primary);
  color: var(--primary);
}

.prd-reviews-count {
  margin-top: 0.5rem;
  font-size: 0.75rem;
  color: var(--muted-fg);
}

/* Rating Bars */
.prd-reviews-bars {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.prd-reviews-bar-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.75rem;
}

.prd-reviews-bar-label {
  width: 2rem;
  color: var(--muted-fg);
}

.prd-reviews-bar-track {
  height: 0.5rem;
  flex: 1;
  overflow: hidden;
  border-radius: 999px;
  background: var(--border);
}

.prd-reviews-bar-fill {
  display: block;
  height: 100%;
  background: var(--primary);
}

.prd-reviews-bar-pct {
  width: 2.5rem;
  text-align: right;
  color: var(--muted-fg);
}

/* ── Review Form ──────────────────────────────────────────── */
.prd-review-form {
  margin-top: 2rem;
  border-radius: var(--radius-2xl);
  border: 1px solid var(--border);
  background: var(--card);
  padding: 1.5rem;
}

.prd-review-form h3 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  text-transform: uppercase;
  margin: 0;
}

.prd-review-form-sub {
  margin-top: 0.25rem;
  font-size: 0.875rem;
  color: var(--muted-fg);
}

.prd-form-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1.25rem;
}

@media (min-width: 768px) { .prd-form-grid { grid-template-columns: 1fr 1fr; } }

.prd-form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.25rem;
  color: var(--fg);
}

.prd-form-input {
  display: flex;
  height: 2.25rem;
  width: 100%;
  border-radius: var(--radius-md);
  border: 1px solid var(--input);
  padding: 0 0.75rem;
  font-size: 0.875rem;
  color: var(--fg);
  background: transparent;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.prd-form-input::placeholder { color: var(--muted-fg); }
.prd-form-input:focus-visible { outline: none; box-shadow: 0 0 0 1px var(--ring); }

.prd-form-textarea {
  display: flex;
  min-height: 60px;
  width: 100%;
  border-radius: var(--radius-md);
  border: 1px solid var(--input);
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  color: var(--fg);
  background: transparent;
  resize: vertical;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.prd-form-textarea::placeholder { color: var(--muted-fg); }
.prd-form-textarea:focus-visible { outline: none; box-shadow: 0 0 0 1px var(--ring); }

.prd-form-full { grid-column: 1 / -1; }

/* Star Picker */
.prd-star-pick {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-top: 0.5rem;
}

.prd-star-pick button {
  padding: 0.125rem;
  transition: transform var(--transition-fast);
  background: none;
  border: none;
  cursor: pointer;
}

.prd-star-pick button:hover { transform: scale(1.1); }
.prd-star-pick button svg { width: 1.75rem; height: 1.75rem; color: rgba(161,161,170,0.4); }
.prd-star-pick button.is-picked svg { color: var(--primary); fill: var(--primary); }

.prd-form-hint {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0.25rem;
}

.prd-form-counter {
  font-size: 0.6875rem;
  color: var(--muted-fg);
}

.prd-form-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  white-space: nowrap;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  height: 2.25rem;
  padding: 0 1rem;
  margin-top: 1.25rem;
  background: var(--gradient-primary);
  color: var(--primary-fg);
  box-shadow: var(--shadow-glow);
  border: none;
  transition: filter var(--transition-fast), box-shadow var(--transition-fast);
}

.prd-form-submit:hover { box-shadow: var(--shadow-glow-strong); filter: brightness(1.1); }

/* ── Review Cards ─────────────────────────────────────────── */
.prd-review-list {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}

@media (min-width: 768px) { .prd-review-list { grid-template-columns: 1fr 1fr; } }

.prd-review-card {
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
  background: var(--card);
  padding: 1.25rem;
}

.prd-review-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.prd-review-name {
  font-weight: 600;
  margin: 0;
}

.prd-review-date {
  font-size: 0.6875rem;
  color: var(--muted-fg);
}

.prd-review-stars {
  display: inline-flex;
  align-items: center;
  gap: 0.125rem;
}

.prd-review-stars svg {
  width: 1rem;
  height: 1rem;
}

.prd-review-stars svg.filled { fill: var(--primary); color: var(--primary); }
.prd-review-stars svg.empty { color: rgba(161,161,170,0.4); }

.prd-review-title {
  margin-top: 0.75rem;
  font-weight: 600;
}

.prd-review-text {
  margin-top: 0.25rem;
  font-size: 0.875rem;
  color: var(--muted-fg);
  line-height: 1.6;
}

.prd-review-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  margin-top: 0.75rem;
  border-radius: 999px;
  background: rgba(57,255,20,0.1);
  padding: 0.125rem 0.5rem;
  font-size: 0.625rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--primary);
}

.prd-review-badge svg { width: 0.75rem; height: 0.75rem; }

/* ── Related Products ─────────────────────────────────────── */
.prd-related {
  margin-top: 5rem;
}

.prd-related-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  text-transform: uppercase;
  margin: 0 0 1.5rem;
}

@media (min-width: 640px) { .prd-related-title { font-size: 1.875rem; } }

.prd-related-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

@media (min-width: 768px) { .prd-related-grid { grid-template-columns: repeat(4, 1fr); } }

/* Related Product Card */
.rp-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
  background: var(--card);
  transition: border-color var(--transition-fast);
}

.rp-card:hover { border-color: rgba(57,255,20,0.5); }

.rp-card-img-wrap {
  display: block;
  position: relative;
  aspect-ratio: 1/1;
  overflow: hidden;
  background: var(--surface);
}

.rp-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.rp-card:hover .rp-card-img { transform: scale(1.05); }

.rp-card-badges {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.rp-badge-sale {
  display: inline-block;
  border-radius: var(--radius);
  background: var(--primary);
  color: var(--primary-fg);
  padding: 0.125rem 0.5rem;
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.rp-card-body { padding: 1rem; }

.rp-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.rp-card-brand {
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--primary);
  margin: 0;
}

.rp-card-rating {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.6875rem;
  color: var(--muted-fg);
}

.rp-card-rating svg {
  width: 0.75rem;
  height: 0.75rem;
  fill: var(--primary);
  color: var(--primary);
}

.rp-card-title {
  margin-top: 0.25rem;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.25;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.rp-card-title a { color: var(--fg); transition: color var(--transition-fast); }
.rp-card-title a:hover { color: var(--primary); }

.rp-card-size {
  margin-top: 0.125rem;
  font-size: 0.75rem;
  color: var(--muted-fg);
}

.rp-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.rp-card-price {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}

.rp-card-price-curr {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--primary);
}

.rp-card-price-old {
  font-size: 0.75rem;
  color: var(--muted-fg);
  text-decoration: line-through;
}

.rp-card-add {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  white-space: nowrap;
  font-weight: 500;
  cursor: pointer;
  height: 2rem;
  padding: 0 0.75rem;
  font-size: 0.75rem;
  border-radius: var(--radius-md);
  background: var(--gradient-primary);
  color: var(--primary-fg);
  box-shadow: var(--shadow-glow);
  border: none;
  transition: filter var(--transition-fast), box-shadow var(--transition-fast);
}

.rp-card-add:hover { box-shadow: var(--shadow-glow-strong); filter: brightness(1.1); }
.rp-card-add svg { width: 0.875rem; height: 0.875rem; flex-shrink: 0; }