/* ============================================================================
   COMPONENTES — LOJA v27
   Product card, price block, variant chips, mini-cart, checkout steps,
   trust seals, ai-chat
   ============================================================================ */

/* ============================================================ PRODUCT CARD */
.product-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--t-base), box-shadow var(--t-base), border-color var(--t-base);
  display: flex;
  flex-direction: column;
  height: 100%;
  cursor: pointer;
  position: relative;
}
.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.product-card-image {
  aspect-ratio: 1;
  background: var(--color-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.product-card-image img,
.product-card-image svg {
  max-width: 75%;
  max-height: 75%;
  object-fit: contain;
  transition: transform var(--t-slow);
}
.product-card:hover .product-card-image img,
.product-card:hover .product-card-image svg {
  transform: scale(1.05);
}

.product-card-badges {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.product-card-body {
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: var(--space-2);
}

.product-card-category {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: var(--ls-wide);
  color: var(--color-text-3);
  font-weight: 600;
}

.product-card-name {
  font-family: var(--font-display);
  font-size: var(--fs-md);
  font-weight: 600;
  color: var(--color-text);
  line-height: var(--lh-snug);
  margin: 0;
}

.product-card-resumo {
  font-size: var(--fs-sm);
  color: var(--color-text-3);
  line-height: var(--lh-snug);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-card-footer {
  margin-top: auto;
  padding-top: var(--space-3);
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: var(--space-3);
  border-top: 1px solid var(--color-divider);
}

.product-card-price-from {
  font-size: var(--fs-xs);
  color: var(--color-text-3);
  display: block;
  line-height: 1;
  margin-bottom: 2px;
}
.product-card-price {
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1;
}
.product-card-price .currency {
  font-size: 0.75em;
  font-weight: 500;
  color: var(--color-text-3);
  margin-right: 2px;
}

.product-card-pix {
  font-size: var(--fs-xs);
  color: var(--color-pix);
  font-weight: 600;
  margin-top: 2px;
  display: block;
}

.product-card-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  border-radius: var(--radius-full);
  background: var(--color-primary-soft);
  color: var(--color-primary);
  transition: background var(--t-fast), color var(--t-fast), transform var(--t-fast);
  flex-shrink: 0;
}
.product-card:hover .product-card-cta {
  background: var(--color-primary);
  color: var(--color-text-on-primary);
  transform: scale(1.1);
}
.product-card-cta svg { width: 18px; height: 18px; }

/* ============================================================ PRICE BLOCK (detail) */
.price-block {
  padding: var(--space-5) var(--space-6);
  background: var(--color-muted);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}
.price-block-from { font-size: var(--fs-xs); text-transform: uppercase; letter-spacing: var(--ls-wide); color: var(--color-text-3); font-weight: 600; display: block; margin-bottom: var(--space-1); }
.price-block-current {
  font-family: var(--font-display);
  font-size: var(--fs-3xl);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1;
  display: block;
}
.price-block-current .currency { font-size: 0.55em; font-weight: 500; color: var(--color-text-3); margin-right: var(--space-1); vertical-align: top; }
.price-block-original {
  font-size: var(--fs-sm);
  color: var(--color-text-3);
  text-decoration: line-through;
  margin-left: var(--space-2);
}
.price-block-pix-row {
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px dashed var(--color-border);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--fs-sm);
}
.price-block-pix-icon {
  width: 32px; height: 32px;
  border-radius: var(--radius-sm);
  background: var(--color-pix);
  color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 700;
  font-size: var(--fs-xs);
}
.price-block-pix-value {
  font-family: var(--font-display);
  font-size: var(--fs-xl);
  font-weight: 700;
  color: var(--color-pix);
}
.price-block-pix-tag {
  font-size: var(--fs-xs);
  color: var(--color-text-3);
}

/* ============================================================ VARIANT CHIPS */
.variant-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.variant-chip {
  padding: 0.625rem 1rem;
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--t-fast);
  cursor: pointer;
  min-width: 64px;
  text-align: center;
}
.variant-chip:hover { border-color: var(--color-text-3); }
.variant-chip.is-active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-text-on-primary);
}

/* ============================================================ SHOP GRID & FILTERS */
.shop-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: var(--space-7);
}
@media (max-width: 900px) {
  .shop-layout { grid-template-columns: 1fr; }
  .shop-filters { display: none; }
}

.shop-filters {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  height: fit-content;
  position: sticky;
  top: calc(var(--header-h) + var(--space-5));
}
.shop-filter-group { margin-bottom: var(--space-5); }
.shop-filter-group:last-child { margin-bottom: 0; }
.shop-filter-label {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: var(--ls-wide);
  color: var(--color-text-3);
  font-weight: 700;
  margin-bottom: var(--space-3);
  display: block;
}

.shop-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-5);
}
@media (max-width: 640px) {
  .shop-grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-3); }
}

.shop-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
  flex-wrap: wrap;
}
.shop-count { font-size: var(--fs-sm); color: var(--color-text-3); }

/* ============================================================ BREADCRUMB */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-sm);
  color: var(--color-text-3);
  margin-bottom: var(--space-5);
}
.breadcrumb a { color: var(--color-text-3); transition: color var(--t-fast); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb .sep { color: var(--color-text-muted); }
.breadcrumb [aria-current="page"] { color: var(--color-text); font-weight: 500; }

/* ============================================================ CHECKOUT STEPS */
.checkout-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: var(--space-7);
}
@media (max-width: 900px) {
  .checkout-layout { grid-template-columns: 1fr; }
}

.steps-progress {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-7);
}
.step-pill {
  flex: 1;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-full);
  background: var(--color-muted);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-text-3);
  transition: all var(--t-base);
}
.step-pill.is-active {
  background: var(--color-primary);
  color: var(--color-text-on-primary);
}
.step-pill.is-done {
  background: var(--color-accent-soft);
  color: var(--color-accent);
}
.step-pill-num {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .3);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: var(--fs-xs);
  font-weight: 700;
}
.step-pill.is-done .step-pill-num { background: var(--color-accent); color: #fff; }

.summary-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  position: sticky;
  top: calc(var(--header-h) + var(--space-5));
}
.summary-row {
  display: flex;
  justify-content: space-between;
  font-size: var(--fs-sm);
  margin-bottom: var(--space-3);
  color: var(--color-text-2);
}
.summary-row.total {
  font-size: var(--fs-md);
  font-weight: 700;
  color: var(--color-text);
  padding-top: var(--space-4);
  margin-top: var(--space-4);
  border-top: 1px solid var(--color-divider);
}

/* ============================================================ CART ITEM */
.cart-item {
  display: grid;
  grid-template-columns: 80px 1fr auto;
  gap: var(--space-4);
  padding: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-3);
  align-items: center;
}
.cart-item-img {
  aspect-ratio: 1;
  background: var(--color-muted);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.cart-item-img img,
.cart-item-img svg { max-width: 80%; max-height: 80%; }
.cart-item-name { font-weight: 600; color: var(--color-text); margin-bottom: var(--space-1); display: block; line-height: 1.3; }
.cart-item-variant { font-size: var(--fs-sm); color: var(--color-text-3); }
.cart-item-price { font-weight: 700; color: var(--color-text); }
.cart-item-remove {
  width: 32px; height: 32px;
  border-radius: var(--radius-full);
  color: var(--color-text-3);
  transition: background var(--t-fast), color var(--t-fast);
  display: inline-flex; align-items: center; justify-content: center;
}
.cart-item-remove:hover { background: #FEE2E2; color: var(--color-danger); }
.cart-item-remove svg { width: 16px; height: 16px; }

@media (max-width: 640px) {
  .cart-item { grid-template-columns: 60px 1fr; gap: var(--space-3); padding: var(--space-3); }
  .cart-item-remove { grid-column: 2; justify-self: end; margin-top: var(--space-2); }
}

/* ============================================================ TRUST SEALS */
.trust-seals {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: center;
  padding: var(--space-5) 0;
}
.trust-seal {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: 500;
  color: var(--color-text-2);
}
.trust-seal svg { width: 16px; height: 16px; color: var(--color-accent); }

/* ============================================================ PIX QR PANEL */
.pix-panel {
  background: var(--color-surface);
  border: 2px dashed var(--color-pix);
  border-radius: var(--radius-lg);
  padding: var(--space-7);
  text-align: center;
}
.pix-qr {
  width: 240px; height: 240px;
  margin: 0 auto var(--space-5);
  background: #fff;
  padding: var(--space-3);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}
.pix-qr img { width: 100%; height: 100%; }
.pix-code {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  background: var(--color-muted);
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  word-break: break-all;
  text-align: left;
  color: var(--color-text-2);
  margin-bottom: var(--space-3);
  max-height: 88px;
  overflow-y: auto;
}
.pix-timer {
  font-family: var(--font-display);
  font-size: var(--fs-xl);
  font-weight: 700;
  color: var(--color-pix);
  display: inline-block;
  background: var(--color-pix-soft);
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-full);
}

/* ============================================================ THEME SWITCH */
.theme-switch {
  width: 44px; height: 44px;
  border-radius: var(--radius-full);
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--color-text-2);
  background: transparent;
  transition: background var(--t-fast), color var(--t-fast);
}
.theme-switch:hover { background: var(--color-muted); color: var(--color-text); }
.theme-switch svg { width: 20px; height: 20px; }
.theme-switch .icon-sun  { display: none; }
.theme-switch .icon-moon { display: block; }
[data-theme="dark"] .theme-switch .icon-sun  { display: block; }
[data-theme="dark"] .theme