/* ─── Product Hero ─── */
.product-hero {
  padding: var(--space-xl) 0 var(--space-2xl);
  background: var(--bg);
}
.product-hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

/* Gallery */
.product-gallery { display: flex; flex-direction: column; gap: 1rem; }
.gallery-main {
  aspect-ratio: 4/3;
  background: linear-gradient(160deg, #E8D9C5 0%, #C9B49A 40%, #A89068 100%);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.gallery-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: var(--accent);
  color: white;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
}
.gallery-placeholder { text-align: center; color: rgba(255,255,255,0.85); }
.gallery-placeholder-icon { font-size: 3rem; display: block; margin-bottom: 0.5rem; }
.gallery-placeholder p { font-family: var(--font-display); font-size: 1.3rem; font-weight: 500; }
.gallery-placeholder small { font-size: 0.8rem; opacity: 0.7; }

.gallery-thumbs { display: flex; gap: 0.5rem; }
.gallery-thumb {
  padding: 0.5rem 1rem;
  background: var(--bg-alt);
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  cursor: pointer;
  color: var(--fg-muted);
}
.gallery-thumb.active { border-color: var(--accent); color: var(--accent); font-weight: 600; }

/* Product Info */
.product-eyebrow {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 0.75rem;
}
.product-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 0.75rem;
}
.product-tagline {
  font-size: 1rem;
  color: var(--fg-muted);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}
.product-price-block {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.product-price {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}
.product-price-note {
  font-size: 0.85rem;
  color: var(--sage);
  font-weight: 500;
}
.product-description {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.7;
  margin-bottom: 2rem;
}

/* Pieces List */
.product-pieces { margin-bottom: 2rem; }
.pieces-heading {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--fg-muted);
  font-weight: 600;
  margin-bottom: 1rem;
}
.pieces-list { list-style: none; display: flex; flex-direction: column; gap: 0.75rem; }
.piece-item { display: flex; align-items: flex-start; gap: 1rem; }
.piece-num {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent-light);
  min-width: 2rem;
  line-height: 1.3;
}
.piece-details { display: flex; flex-direction: column; gap: 0.2rem; }
.piece-name { font-size: 0.9rem; font-weight: 500; }
.piece-desc { font-size: 0.8rem; color: var(--fg-muted); }

/* Add to cart */
.product-actions { display: flex; align-items: center; gap: 1rem; margin-bottom: 1.5rem; }
.quantity-selector {
  display: flex;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  height: 48px;
}
.qty-btn {
  width: 40px;
  height: 48px;
  border: none;
  background: var(--bg-alt);
  color: var(--fg);
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.qty-btn:hover { background: var(--border); }
#qty-input {
  width: 50px;
  height: 48px;
  border: none;
  text-align: center;
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-body);
  background: white;
}
.btn-add-to-cart {
  flex: 1;
  height: 48px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}
.btn-add-to-cart:hover { background: var(--accent-dark); }

/* Meta */
.product-meta { display: flex; flex-direction: column; gap: 0.6rem; }
.meta-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.82rem;
  color: var(--fg-muted);
}
.meta-item svg { flex-shrink: 0; color: var(--sage); }

/* Rental section */
.product-rental {
  background: var(--bg-alt);
  padding: var(--space-2xl) 0;
}
.rental-inner { max-width: 1200px; margin: 0 auto; padding: 0 2rem; }
.rental-header { margin-bottom: 3rem; }
.rental-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}
.rental-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}
.rental-icon { font-size: 2rem; margin-bottom: 1rem; }
.rental-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 500;
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}
.rental-card p { font-size: 0.88rem; color: var(--fg-muted); line-height: 1.65; }

/* Freight section */
.product-freight {
  background: var(--bg);
  padding: var(--space-2xl) 0;
}
.freight-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}
.freight-info h2 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}
.freight-info p { font-size: 0.9rem; color: var(--fg-muted); margin-bottom: 2rem; }
.freight-steps { display: flex; flex-direction: column; gap: 1rem; margin-bottom: 1.5rem; }
.freight-step { display: flex; align-items: center; gap: 1rem; font-size: 0.88rem; }
.fstep-num {
  min-width: 28px;
  height: 28px;
  background: var(--accent);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
}
.freight-note {
  background: var(--accent-light);
  border-left: 3px solid var(--accent);
  padding: 1rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.85rem;
}

/* Freight Calculator */
.freight-calc {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}
.freight-calc h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 500;
  margin-bottom: 1.25rem;
}
.calc-form { display: flex; flex-direction: column; gap: 1rem; }
.calc-field { display: flex; flex-direction: column; gap: 0.4rem; }
.calc-field label { font-size: 0.8rem; font-weight: 600; color: var(--fg-muted); text-transform: uppercase; letter-spacing: 0.05em; }
.calc-field input {
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 1rem;
  background: var(--card-bg);
}
.calc-btn {
  padding: 0.8rem;
  background: var(--sage);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}
.calc-btn:hover { background: #5A6B4E; }
.calc-result {
  padding: 1rem;
  background: var(--sage-light);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  display: none;
}
.calc-result.visible { display: block; }
.calc-result.success { background: var(--sage-light); color: var(--sage); font-weight: 500; }
.calc-result.error { background: #FDE8E8; color: #C53030; }

/* CTA Section */
.product-cta {
  background: var(--accent);
  padding: var(--space-2xl) 0;
  text-align: center;
}
.cta-inner { max-width: 600px; margin: 0 auto; padding: 0 2rem; }
.cta-inner h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 500;
  color: white;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}
.cta-inner p { font-size: 1rem; color: rgba(255,255,255,0.8); margin-bottom: 2rem; line-height: 1.6; }
.btn-cta-primary {
  display: inline-block;
  padding: 1rem 2.5rem;
  background: white;
  color: var(--accent);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 700;
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: transform 0.15s, box-shadow 0.15s;
}
.btn-cta-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.15); }

/* Cart Toast */
.cart-toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--fg);
  color: var(--bg);
  padding: 1rem 1.5rem;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.9rem;
  z-index: 1000;
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}
.cart-toast-link { color: var(--accent); font-weight: 600; text-decoration: none; white-space: nowrap; }

/* Bundles Page */
.bundles-page { padding: var(--space-xl) 0 var(--space-2xl); background: var(--bg); }
.bundles-inner { max-width: 1200px; margin: 0 auto; padding: 0 2rem; }
.bundles-header { text-align: center; margin-bottom: 3rem; }
.bundles-sub { font-size: 1rem; color: var(--fg-muted); max-width: 55ch; margin: 0.75rem auto 0; line-height: 1.6; }
.bundles-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.bundle-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}
.bundle-card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.08); }
.bundle-visual {
  aspect-ratio: 4/3;
  position: relative;
  overflow: hidden;
}
.bundle-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, #E8D9C5 0%, #A89068 100%);
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: rgba(255,255,255,0.5);
}
.bundle-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: var(--accent);
  color: white;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
}
.bundle-content { padding: 1.5rem; }
.bundle-name { font-family: var(--font-display); font-size: 1.2rem; font-weight: 500; margin-bottom: 0.5rem; letter-spacing: -0.01em; }
.bundle-tagline { font-size: 0.85rem; color: var(--fg-muted); margin-bottom: 1rem; line-height: 1.5; }
.bundle-pieces { list-style: none; margin-bottom: 1.5rem; display: flex; flex-direction: column; gap: 0.4rem; }
.bundle-pieces li { font-size: 0.82rem; color: var(--fg); padding-left: 1.2rem; position: relative; }
.bundle-pieces li::before { content: ''; position: absolute; left: 0; top: 0.55em; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); }
.bundle-footer { display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; }
.bundle-price { font-family: var(--font-display); font-size: 1.5rem; font-weight: 700; }
.bundle-freight { font-size: 0.78rem; color: var(--sage); font-weight: 500; }
.bundle-cta { margin-left: auto; font-size: 0.88rem; font-weight: 600; color: var(--accent); text-decoration: none; }

/* Cart Page */
.cart-page { padding: var(--space-xl) 0 var(--space-2xl); background: var(--bg); }
.cart-inner { max-width: 1200px; margin: 0 auto; padding: 0 2rem; }
.cart-title {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  margin-bottom: 2rem;
}
.cart-layout { display: grid; grid-template-columns: 1fr 380px; gap: 4rem; align-items: start; }
.cart-items-list { display: flex; flex-direction: column; gap: 1.5rem; }
.cart-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: grid;
  grid-template-columns: 80px 1fr auto;
  gap: 1.5rem;
  align-items: center;
}
.cart-item-img {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-md);
  background: linear-gradient(160deg, #E8D9C5 0%, #C9B49A 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: rgba(255,255,255,0.6);
}
.cart-item-info h3 { font-size: 1rem; font-weight: 600; margin-bottom: 0.3rem; }
.cart-item-info p { font-size: 0.82rem; color: var(--fg-muted); }
.cart-item-price { font-family: var(--font-display); font-size: 1.2rem; font-weight: 700; text-align: right; }
.cart-item-remove {
  background: none;
  border: none;
  color: var(--fg-muted);
  font-size: 0.8rem;
  cursor: pointer;
  text-decoration: underline;
  padding: 0;
  font-family: var(--font-body);
}
.cart-empty { padding: 3rem 0; text-align: center; color: var(--fg-muted); }
.btn-back { color: var(--accent); font-weight: 600; text-decoration: none; }

/* Summary Card */
.summary-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  position: sticky;
  top: 2rem;
}
.summary-card h2 { font-family: var(--font-display); font-size: 1.2rem; font-weight: 500; margin-bottom: 1.5rem; }
.summary-rows { display: flex; flex-direction: column; gap: 0.75rem; margin-bottom: 1.5rem; }
.summary-row { display: flex; justify-content: space-between; font-size: 0.9rem; }
.summary-row-label { color: var(--fg-muted); }
.summary-row-value { font-weight: 500; }
.summary-freight-note { font-size: 0.78rem; color: var(--sage); font-weight: 500; margin-bottom: 1.5rem; padding: 0.75rem; background: var(--sage-light); border-radius: var(--radius-sm); }
.summary-total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  margin-bottom: 1.5rem;
}
.summary-total span:first-child { font-weight: 600; font-size: 1rem; }
.summary-total span:last-child { font-family: var(--font-display); font-size: 1.5rem; font-weight: 700; }
.btn-checkout {
  width: 100%;
  padding: 1rem;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}
.btn-checkout:hover { background: var(--accent-dark); }

/* Checkout Page */
.checkout-page { padding: var(--space-xl) 0 var(--space-2xl); background: var(--bg); }
.checkout-inner { max-width: 900px; margin: 0 auto; padding: 0 2rem; }
.checkout-title {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  margin-bottom: 2rem;
}
.checkout-layout { display: grid; grid-template-columns: 1fr 340px; gap: 4rem; align-items: start; }
.checkout-form { display: flex; flex-direction: column; gap: 2rem; }
.form-section { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 1.5rem; }
.form-section h2 { font-family: var(--font-display); font-size: 1.1rem; font-weight: 500; margin-bottom: 1.25rem; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-field { display: flex; flex-direction: column; gap: 0.4rem; }
.form-field.full { grid-column: 1 / -1; }
.form-field label { font-size: 0.78rem; font-weight: 600; color: var(--fg-muted); text-transform: uppercase; letter-spacing: 0.05em; }
.form-field input, .form-field select {
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.95rem;
  background: var(--bg);
  transition: border-color 0.15s;
}
.form-field input:focus, .form-field select:focus { outline: none; border-color: var(--accent); }
.form-field input.error { border-color: #C53030; }

/* Stripe Card Element */
.stripe-card-wrap {
  padding: 0.875rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg);
}
.stripe-card-wrap:focus-within { border-color: var(--accent); }

/* Freight on checkout */
.freight-display {
  background: var(--sage-light);
  border: 1px solid var(--sage);
  border-radius: var(--radius-md);
  padding: 1rem;
  font-size: 0.88rem;
  color: var(--sage);
  display: none;
}
.freight-display.visible { display: block; }

/* Checkout summary sidebar */
.checkout-summary-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  position: sticky;
  top: 2rem;
}
.checkout-summary-card h2 { font-family: var(--font-display); font-size: 1.1rem; font-weight: 500; margin-bottom: 1.25rem; }
.checkout-product-row { display: flex; gap: 1rem; margin-bottom: 1.5rem; padding-bottom: 1.5rem; border-bottom: 1px solid var(--border); }
.checkout-product-img {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  background: linear-gradient(160deg, #E8D9C5 0%, #C9B49A 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  font-weight: 700;
  color: rgba(255,255,255,0.6);
}
.checkout-product-info h3 { font-size: 0.9rem; font-weight: 600; margin-bottom: 0.2rem; }
.checkout-product-info p { font-size: 0.78rem; color: var(--sage); font-weight: 500; }
.summary-checkout-rows { display: flex; flex-direction: column; gap: 0.6rem; margin-bottom: 1rem; }
.summary-checkout-row { display: flex; justify-content: space-between; font-size: 0.88rem; }
.summary-checkout-row .label { color: var(--fg-muted); }
.summary-checkout-row .value { font-weight: 500; }
.summary-checkout-total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1rem;
  border-top: 2px solid var(--fg);
  margin-bottom: 1.5rem;
}
.summary-checkout-total span:first-child { font-weight: 700; }
.summary-checkout-total span:last-child { font-family: var(--font-display); font-size: 1.4rem; font-weight: 700; }
.btn-place-order {
  width: 100%;
  padding: 1rem;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}
.btn-place-order:hover { background: var(--accent-dark); }
.btn-place-order:disabled { opacity: 0.6; cursor: not-allowed; }
.order-error {
  background: #FDE8E8;
  color: #C53030;
  padding: 0.875rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  display: none;
}
.order-error.visible { display: block; }
.checkout-secure {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  justify-content: center;
  margin-top: 1rem;
  font-size: 0.78rem;
  color: var(--fg-muted);
}

/* Order Confirmation */
.confirm-page { padding: var(--space-2xl) 0; background: var(--bg); }
.confirm-inner { max-width: 640px; margin: 0 auto; padding: 0 2rem; text-align: center; }
.confirm-icon { font-size: 4rem; margin-bottom: 1.5rem; }
.confirm-title {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 500;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}
.confirm-sub { font-size: 1rem; color: var(--fg-muted); margin-bottom: 2.5rem; line-height: 1.6; }
.confirm-order-box {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: left;
  margin-bottom: 2rem;
}
.confirm-order-number { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--fg-muted); font-weight: 600; margin-bottom: 0.5rem; }
.confirm-order-val { font-family: var(--font-display); font-size: 1.4rem; font-weight: 700; margin-bottom: 1.5rem; }
.confirm-details-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.confirm-detail h3 { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--fg-muted); font-weight: 600; margin-bottom: 0.5rem; }
.confirm-detail p { font-size: 0.9rem; line-height: 1.5; }
.confirm-gigas {
  background: var(--accent-light);
  border-left: 3px solid var(--accent);
  padding: 1rem 1.25rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom: 2rem;
  text-align: left;
  font-size: 0.88rem;
}
.confirm-gigas strong { display: block; margin-bottom: 0.3rem; color: var(--accent-dark); }
.confirm-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.btn-primary {
  padding: 0.875rem 2rem;
  background: var(--accent);
  color: white;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  display: inline-block;
}
.btn-primary:hover { background: var(--accent-dark); }
.btn-secondary {
  padding: 0.875rem 2rem;
  background: none;
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  display: inline-block;
}
.btn-secondary:hover { background: var(--bg-alt); }

/* Responsive */
@media (max-width: 900px) {
  .product-hero-inner { grid-template-columns: 1fr; gap: 2rem; }
  .rental-grid { grid-template-columns: 1fr; }
  .freight-inner { grid-template-columns: 1fr; gap: 2rem; }
  .bundles-grid { grid-template-columns: 1fr 1fr; }
  .cart-layout { grid-template-columns: 1fr; }
  .checkout-layout { grid-template-columns: 1fr; }
  .checkout-summary-card { position: static; }
}
@media (max-width: 600px) {
  .bundles-grid { grid-template-columns: 1fr; }
  .product-actions { flex-direction: column; }
  .btn-add-to-cart { width: 100%; }
  .form-grid { grid-template-columns: 1fr; }
  .confirm-details-grid { grid-template-columns: 1fr; }
}