/* ============================================================
   DRIVURA Products — Products Page Styles
   Product grid, cards, filters, bulk section
   ============================================================ */

/* ── Page Hero (Interior Pages) ── */
.page-hero {
  position: relative;
  padding: calc(var(--space-6) + 70px) 0 var(--space-8);
  overflow: hidden;
}

.page-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-hero__content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.page-hero__title {
  font-size: var(--fs-h1);
  font-weight: var(--fw-extrabold);
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-tight);
  margin-bottom: var(--space-3);
}

.page-hero__subtitle {
  font-size: var(--fs-body-lg);
  color: var(--text-secondary);
  line-height: var(--lh-body);
  max-width: 600px;
}

/* ── Compact Section Modifier ── */
.section--compact {
  padding: var(--space-5) 0 var(--space-4);
}

.section--compact-top {
  padding-top: var(--space-8) !important;
  padding-bottom: var(--space-8) !important;
}

/* ── Product Filter ── */
.product-filter {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1);
  background: var(--surface-card);
  border: var(--border-subtle);
  border-radius: var(--radius-full);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  margin-bottom: var(--space-2);
}

.product-filter::-webkit-scrollbar { display: none; }

.product-filter__btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  font-family: var(--font-display);
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
  color: var(--text-secondary);
  border-radius: var(--radius-full);
  white-space: nowrap;
  transition: all var(--duration-normal) var(--ease-out);
  cursor: pointer;
}

.product-filter__btn:hover {
  color: var(--text-primary);
  background: var(--surface-hover);
}

.product-filter__btn--active {
  background: var(--brand-primary);
  color: var(--surface-body);
  font-weight: var(--fw-semibold);
}

.product-filter__btn--active:hover {
  background: var(--brand-primary-light);
  color: var(--surface-body);
}

.product-filter__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.product-filter__dot--petrol { background: var(--petrol-accent); }
.product-filter__dot--diesel { background: var(--diesel-accent); }
.product-filter__dot--coolant { background: var(--coolant-accent); }

/* ── Product Grid ── */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-6);
}

.product-grid--single {
  max-width: 400px;
}

/* ── Product Card ── */
.product-card {
  background: var(--surface-card);
  border: var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-out);
  position: relative;
}

.product-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  padding: 1px;
  background: var(--gradient-card-border);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
  pointer-events: none;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(255, 255, 255, 0.1);
}

.product-card:hover::before { opacity: 1; }

.product-card--hidden {
  display: none;
}

/* Image container */
.product-card__image {
  position: relative;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  background: linear-gradient(180deg, rgba(16, 185, 129, 0.03) 0%, var(--surface-elevated) 100%);
  overflow: hidden;
}

.product-card__image--diesel {
  background: linear-gradient(180deg, rgba(139, 143, 163, 0.04) 0%, var(--surface-elevated) 100%);
}

.product-card__image--coolant {
  background: linear-gradient(180deg, rgba(34, 197, 94, 0.04) 0%, var(--surface-elevated) 100%);
}

.product-card__image .card__badge {
  position: absolute;
  top: var(--space-4);
  left: var(--space-4);
  z-index: 2;
}

.product-card__image img {
  width: 75%;
  height: 75%;
  object-fit: contain;
  transition: transform var(--duration-slow) var(--ease-out);
  filter: drop-shadow(0 8px 24px rgba(0, 0, 0, 0.3));
}

.product-card:hover .product-card__image img {
  transform: scale(1.06) translateY(-4px);
}

/* Card body */
.product-card__body {
  padding: var(--space-5);
}

.product-card__title {
  font-family: var(--font-display);
  font-size: var(--fs-h4);
  font-weight: var(--fw-semibold);
  margin-bottom: var(--space-1);
}

.product-card__type {
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  text-transform: uppercase;
  letter-spacing: var(--ls-wide);
  color: var(--text-tertiary);
  margin-bottom: var(--space-4);
}

/* Specs row */
.product-card__specs {
  display: flex;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.product-card__spec {
  flex: 1;
  padding: var(--space-2) var(--space-3);
  background: var(--surface-elevated);
  border-radius: var(--radius-sm);
  text-align: center;
}

.product-card__spec-label {
  display: block;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: var(--ls-wider);
  color: var(--text-tertiary);
  margin-bottom: 2px;
}

.product-card__spec-value {
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  font-weight: var(--fw-semibold);
  color: var(--brand-primary);
}

/* Features list */
.product-card__features {
  list-style: none;
  padding: 0;
  margin: 0;
}

.product-card__features li {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) 0;
  font-size: var(--fs-small);
  color: var(--text-secondary);
}

.product-card__features li::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--brand-primary);
  flex-shrink: 0;
  opacity: 0.6;
}

/* Card Action / Footer */
.product-card__footer {
  margin-top: var(--space-4);
  padding-top: var(--space-3);
  border-top: var(--border-subtle);
}

.product-card__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  width: 100%;
  padding: var(--space-2) var(--space-4);
  font-family: var(--font-display);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: var(--ls-wider);
  color: var(--surface-body);
  background: var(--gradient-gold);
  border: none;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: all var(--duration-normal) var(--ease-out);
}

.product-card__btn:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

/* ── Bulk Showcase ── */
.bulk-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-10);
  align-items: center;
  padding: var(--space-8) 0;
}

.bulk-showcase__sizes {
  display: flex;
  gap: var(--space-5);
  margin-bottom: var(--space-6);
}

.bulk-size {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-4) var(--space-5);
  background: var(--surface-card);
  border: var(--border-subtle);
  border-radius: var(--radius-md);
  min-width: 80px;
  transition: all var(--duration-normal) var(--ease-out);
}

.bulk-size:hover {
  border-color: rgba(0, 180, 216, 0.2);
  transform: translateY(-2px);
}

.bulk-size__value {
  font-family: var(--font-mono);
  font-size: var(--fs-h3);
  font-weight: var(--fw-bold);
  color: var(--brand-primary);
}

.bulk-size__label {
  font-size: var(--fs-xs);
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: var(--ls-wide);
}

.bulk-showcase__images {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: var(--space-4);
  position: relative;
}

.bulk-showcase__drum {
  height: auto;
  max-height: 340px;
  object-fit: contain;
  filter: drop-shadow(0 12px 40px rgba(0, 0, 0, 0.4));
  transition: transform var(--duration-slow) var(--ease-out);
}

.bulk-showcase__drum:hover {
  transform: translateY(-8px);
}

.bulk-showcase__drum--offset {
  margin-bottom: var(--space-6);
}

/* Gateway Cards Hover */
.gateway-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(0, 144, 201, 0.25) !important;
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .bulk-showcase {
    grid-template-columns: 1fr;
    gap: var(--space-6);
    text-align: center;
  }

  .bulk-showcase__sizes { justify-content: center; }

  .bulk-showcase__content .section-heading__label::before { display: none; }
  .bulk-showcase__content .btn { margin: 0 auto; }
}

@media (max-width: 768px) {
  .product-grid {
    grid-template-columns: 1fr;
  }

  .product-filter {
    border-radius: var(--radius-md);
  }

  .product-filter__btn {
    font-size: var(--fs-xs);
    padding: var(--space-2) var(--space-3);
  }

  .bulk-showcase__images { flex-direction: column; align-items: center; }
  .bulk-showcase__drum { max-height: 240px; }
  .bulk-showcase__drum--offset { margin-bottom: 0; }
}

@media (max-width: 640px) {
  .page-hero {
    padding-top: calc(var(--space-12) + 80px);
  }

  .product-card__specs {
    flex-wrap: wrap;
  }

  .bulk-showcase__sizes {
    flex-wrap: wrap;
    justify-content: center;
  }
}