/* ============================================================
   KH DENTASCOPE UK — PRODUCTS PAGE STYLES
   ============================================================ */

/* ── ADVICE BANNER ─────────────────────────────────────────── */
.advice-banner {
  background: linear-gradient(135deg, var(--colour-primary) 0%, #0a6db8 100%);
  padding: 1.4rem 0;
}
.advice-banner-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.advice-banner-copy {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  flex: 1;
  min-width: 0;
}
.advice-banner-icon { font-size: 2rem; line-height: 1; flex-shrink: 0; }
.advice-banner-copy strong {
  display: block;
  font-family: var(--font-heading);
  font-weight: var(--fw-heading);
  font-size: 1rem;
  color: #fff;
  margin-bottom: 0.2rem;
}
.advice-banner-copy p {
  font-size: 0.88rem !important;
  color: rgba(255,255,255,0.78) !important;
  line-height: 1.5;
  margin: 0;
}
.advice-cta {
  background: #fff !important;
  color: var(--colour-primary) !important;
  white-space: nowrap;
  flex-shrink: 0;
  box-shadow: 0 4px 16px rgba(0,0,0,0.18) !important;
}
.advice-cta:hover {
  background: #f0f7ff !important;
  transform: translateY(-2px);
}

/* ── FILTERS BAR ───────────────────────────────────────────── */
.filters-bar {
  background: #fff;
  border-bottom: 1px solid var(--colour-border);
  padding: 0.9rem 0;
  position: sticky;
  top: var(--nav-height);
  z-index: 100;
  box-shadow: 0 2px 12px rgba(5,74,128,0.06);
}
.filters-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.filters-label {
  font-family: var(--font-body);
  font-weight: var(--fw-medium);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--colour-text-mid);
  white-space: nowrap;
}
.filter-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.filter-group-label {
  font-size: 0.78rem;
  font-weight: var(--fw-medium);
  color: var(--colour-text-mid);
  white-space: nowrap;
}
.filter-chips {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}
.filter-chip {
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: var(--fw-medium);
  color: var(--colour-text-mid);
  background: var(--colour-accent);
  border: 1.5px solid var(--colour-border);
  border-radius: 100px;
  padding: 0.3rem 0.9rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}
.filter-chip:hover {
  border-color: var(--colour-primary);
  color: var(--colour-primary);
}
.filter-chip.active {
  background: var(--colour-primary);
  border-color: var(--colour-primary);
  color: #fff;
}
.filter-divider {
  width: 1px;
  height: 24px;
  background: var(--colour-border);
  flex-shrink: 0;
}
.filter-reset {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: var(--fw-medium);
  color: var(--colour-text-mid);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.2rem 0.4rem;
  text-decoration: underline;
  transition: color var(--transition-fast);
  margin-left: auto;
}
.filter-reset:hover { color: var(--colour-primary); }

/* ── PRODUCTS COUNT ────────────────────────────────────────── */
.products-count {
  font-size: 0.85rem !important;
  color: var(--colour-text-mid) !important;
  margin-bottom: 1.5rem;
}

/* ── PRODUCTS GRID ─────────────────────────────────────────── */
.products-section { background: var(--colour-bg-white); }
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

/* ── PRODUCT TILE ──────────────────────────────────────────── */
.product-tile {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--colour-border);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  background: #fff;
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
}
.product-tile:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}
.product-tile[data-hidden="true"] { display: none; }

/* Badge */
.product-badge {
  position: absolute;
  top: 1rem; left: 1rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--colour-primary);
  color: #fff;
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  z-index: 2;
  box-shadow: 0 2px 8px rgba(5,74,128,0.3);
}

/* Image */
.product-tile-img-wrap {
  width: 100%;
  height: 220px;
  background: var(--colour-bg-tinted);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
  flex-shrink: 0;
}
.product-tile-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}
.product-tile:hover .product-tile-img { transform: scale(1.03); }
.product-tile-img-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  color: var(--colour-text-mid);
  font-size: 0.82rem;
  font-family: var(--font-body);
  height: 100%;
  width: 100%;
  border: 2px dashed var(--colour-border);
  background: var(--colour-bg-tinted);
}
.product-tile-img-placeholder svg { opacity: 0.3; }

/* Body */
.product-tile-body {
  padding: 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  flex: 1;
}
.product-tile-brand-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.product-tile-brand-logo {
  height: 22px;
  width: auto;
  max-width: 80px;
  object-fit: contain;
  filter: grayscale(0.2);
}
.product-tile-brand-name {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--colour-primary);
  background: var(--colour-accent);
  padding: 0.15rem 0.55rem;
  border-radius: 100px;
}
.product-tile-name {
  font-family: var(--font-heading);
  font-weight: var(--fw-heading);
  font-size: 1.0rem;
  color: var(--colour-text-dark);
  line-height: 1.3;
  margin: 0;
}
.product-tile-model {
  font-size: 0.8rem;
  color: var(--colour-text-mid);
  margin-top: -0.3rem;
}

/* Features list */
.product-tile-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.42rem;
  margin: 0.3rem 0;
  flex: 1;
}
.product-tile-features li {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  font-size: 0.85rem;
  color: var(--colour-text-mid);
  line-height: 1.45;
}
.product-tile-features li::before {
  content: '';
  display: block;
  width: 16px;
  height: 16px;
  min-width: 16px;
  background: var(--colour-primary);
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='currentColor'%3E%3Cpath fill-rule='evenodd' d='M16.704 4.153a.75.75 0 01.143 1.052l-8 10.5a.75.75 0 01-1.127.075l-4.5-4.5a.75.75 0 011.06-1.06l3.894 3.893 7.48-9.817a.75.75 0 011.05-.143z' clip-rule='evenodd'/%3E%3C/svg%3E");
  mask-size: contain;
  mask-repeat: no-repeat;
  margin-top: 2px;
}

/* CTAs */
.product-tile-ctas {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
  margin-top: 0.5rem;
}
.product-tile-ctas .btn {
  font-size: 0.85rem;
  padding: 0.55rem 0.75rem;
  justify-content: center;
  text-align: center;
}

/* ── EMPTY STATE ───────────────────────────────────────────── */
.products-empty {
  text-align: center;
  padding: 3rem 1.5rem;
}
.products-empty span { font-size: 3rem; display: block; margin-bottom: 1rem; }
.products-empty h3 { margin-bottom: 0.5rem; }
.products-empty a { color: var(--colour-primary); }
.products-empty .btn { margin-top: 1.25rem; }

/* ── LIGHTBOX ──────────────────────────────────────────────── */
.lightbox-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(5,24,44,0.6);
  backdrop-filter: blur(4px);
  z-index: 1100;
  animation: fadeIn 0.25s ease;
}
.lightbox-overlay {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: calc(var(--nav-height) + 1rem) 1rem 1rem;
  overflow-y: auto;
  pointer-events: none;
}
.lightbox-overlay { display: none; pointer-events: none; }
.lightbox-overlay.is-open { display: flex; pointer-events: auto; }
.lightbox-backdrop { display: none; }
.lightbox-backdrop.is-open { display: block; }
.lightbox-panel {
  background: #fff;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 900px;
  position: relative;
  display: flex;
  flex-direction: column;
  animation: slideUp 0.3s cubic-bezier(0.4,0,0.2,1);
  overflow: hidden;
}
@keyframes slideUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
.lightbox-close {
  position: absolute;
  top: 1rem; right: 1rem;
  width: 38px; height: 38px;
  background: var(--colour-accent);
  border: 1px solid var(--colour-border);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  z-index: 10;
  transition: background var(--transition-fast), transform var(--transition-fast);
}
.lightbox-close:hover { background: #fce4e4; transform: scale(1.08); }

/* Lightbox header */
.lightbox-header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  min-height: 300px;
}
.lightbox-header-img-wrap {
  background: var(--colour-bg-tinted);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
  border-radius: var(--border-radius-lg) 0 0 0;
  min-height: 260px;
}
.lightbox-header-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.lightbox-header-img-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  color: var(--colour-text-mid);
  font-size: 0.85rem;
  font-family: var(--font-body);
  min-height: 260px;
  width: 100%;
  border-right: 1px solid var(--colour-border);
}
.lightbox-header-info {
  padding: 2.5rem 2rem 2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.6rem;
}
.lightbox-header-brand-logo {
  height: 28px;
  width: auto;
  max-width: 100px;
  object-fit: contain;
  filter: grayscale(0.1);
}
.lightbox-header-name {
  font-family: var(--font-heading);
  font-weight: var(--fw-bold);
  font-size: clamp(1.3rem, 2.5vw, 1.8rem);
  color: var(--colour-text-dark);
  line-height: 1.2;
}
.lightbox-header-model {
  font-size: 0.9rem;
  color: var(--colour-text-mid);
}
.lightbox-header-brand-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--colour-primary);
  background: var(--colour-accent);
  border: 1px solid var(--colour-border);
  padding: 0.22rem 0.7rem;
  border-radius: 100px;
  margin-top: 0.2rem;
}

/* Lightbox body */
.lightbox-body {
  padding: 2rem;
  overflow-y: auto;
  max-height: 50vh;
  border-top: 1px solid var(--colour-border);
}
.lightbox-description {
  font-size: 0.93rem;
  color: var(--colour-text-mid);
  line-height: 1.8;
  white-space: pre-line;
  margin-bottom: 1.75rem;
}
.lightbox-specs-title {
  font-family: var(--font-heading);
  font-weight: var(--fw-heading);
  font-size: 0.88rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--colour-text-mid);
  margin-bottom: 0.75rem;
}
.lightbox-specs {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.75rem;
}
.lightbox-specs tr { border-bottom: 1px solid var(--colour-border); }
.lightbox-specs td {
  padding: 0.65rem 0.75rem;
  font-size: 0.88rem;
}
.lightbox-specs td:first-child {
  font-weight: var(--fw-medium);
  color: var(--colour-text-dark);
  width: 40%;
  background: var(--colour-accent);
}
.lightbox-specs td:last-child { color: var(--colour-text-mid); }

/* Gallery */
.lightbox-gallery-title {
  font-family: var(--font-heading);
  font-weight: var(--fw-heading);
  font-size: 0.88rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--colour-text-mid);
  margin-bottom: 0.75rem;
}
.lightbox-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 0.75rem;
}
.lightbox-gallery-item {
  border-radius: var(--border-radius);
  overflow: hidden;
  border: 1px solid var(--colour-border);
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}
.lightbox-gallery-item:hover { transform: scale(1.03); box-shadow: var(--shadow-sm); }
.lightbox-gallery-item img {
  width: 100%;
  height: 110px;
  object-fit: cover;
  display: block;
}
.lightbox-gallery-item .gallery-caption {
  font-size: 0.72rem;
  color: var(--colour-text-mid);
  padding: 0.35rem 0.5rem;
  background: var(--colour-accent);
  line-height: 1.3;
}

/* Lightbox footer */
.lightbox-footer {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 1.1rem 2rem;
  background: var(--colour-accent);
  border-top: 1px solid var(--colour-border);
  position: sticky;
  bottom: 0;
  flex-wrap: wrap;
}
.lightbox-footer-text {
  font-size: 0.9rem !important;
  color: var(--colour-text-mid) !important;
  flex: 1;
  margin: 0;
}
.lightbox-enquire-btn { font-size: 0.92rem; padding: 0.65rem 1.5rem; }
.lightbox-pdf-btn    { font-size: 0.88rem; padding: 0.6rem 1.25rem; }

/* ── CTA BANNER ────────────────────────────────────────────── */
.cta-banner {
  background: linear-gradient(135deg, var(--colour-primary) 0%, #0a6db8 100%);
  color: #fff;
}
.cta-banner h2 { color: #fff; }

/* ── RESPONSIVE ────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .products-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .advice-banner-inner { flex-direction: column; align-items: flex-start; }
  .advice-cta { width: 100%; justify-content: center; }
  .filters-inner { gap: 0.6rem; }
  .filter-divider { display: none; }
  .lightbox-header { grid-template-columns: 1fr; }
  .lightbox-header-img-wrap { border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0; min-height: 200px; }
  .lightbox-body { max-height: 60vh; }
  .lightbox-gallery { grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); }
}
@media (max-width: 640px) {
  .products-grid { grid-template-columns: 1fr; }
  .product-tile-ctas { grid-template-columns: 1fr; }
  .lightbox-footer { flex-direction: column; align-items: stretch; }
  .lightbox-footer-text { text-align: center; }
  .lightbox-enquire-btn,
  .lightbox-pdf-btn { text-align: center; justify-content: center; }
  .lightbox-panel { margin-bottom: 2rem; }
  .lightbox-overlay { padding-top: calc(var(--nav-height) + 0.5rem); padding-left: 0.5rem; padding-right: 0.5rem; }
}