/* ===== NAV: always visible on product pages ===== */
nav {
  background: rgba(255,255,255,0.97);
  box-shadow: 0 1px 0 var(--gray-200);
}
nav .nav-logo { color: var(--black); }
nav .nav-links a { color: var(--gray-600); }

/* ===== PREVIEW FRAME: larger on product pages ===== */
.product-customizer .preview-frame {
  width: 100%;
  max-width: 480px;
  padding: 4rem 3rem;
}
.product-customizer .customizer-preview {
  align-items: start;
}
.product-customizer .preview-name { font-size: 2.4rem; }

/* ===== BREADCRUMB ===== */
.breadcrumb {
  padding: 6.5rem 2rem 0;
  max-width: 1200px;
  margin: 0 auto;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray-400);
}
.breadcrumb a { color: var(--gray-400); transition: color var(--transition); }
.breadcrumb a:hover { color: var(--accent); }

/* ===== PRODUCT CUSTOMIZER SECTION ===== */
.product-customizer { padding: 2rem 0 6rem; }

/* Override the default customizer-layout gap for product page */
.product-customizer .customizer-layout {
  gap: 4rem;
  align-items: start;
}

.customizer-form-side { }

.customizer-form-side h1 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  margin-bottom: 2rem;
}

/* ===== FORM VALIDATION ===== */
.customizer-form-group input.error,
.customizer-form-group select.error {
  border-color: #e05252;
  box-shadow: 0 0 0 3px rgba(224, 82, 82, 0.15);
}

/* ===== SHIPPING FIELDSET ===== */
.shipping-fields {
  border: none;
  padding: 0;
  margin-top: 2rem;
  border-top: 1px solid var(--gray-200);
  padding-top: 2rem;
}
.shipping-fields legend {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray-600);
  margin-bottom: 1.5rem;
  display: block;
}

/* ===== ORDER FORM ===== */
#order-form .btn-primary {
  width: 100%;
  justify-content: center;
  margin-top: 0.5rem;
  padding: 1rem;
}
.order-note {
  font-size: 0.72rem;
  color: var(--gray-400);
  text-align: center;
  margin-top: 0.75rem;
}

/* ===== PRODUCT ERROR STATE ===== */
.product-error {
  text-align: center;
  padding: 6rem 2rem;
}
.product-error p {
  font-size: 1.1rem;
  color: var(--gray-600);
  margin-bottom: 1.5rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .product-customizer .customizer-layout {
    grid-template-columns: 1fr;
  }
  .product-customizer .customizer-preview { order: -1; }
}

@media (max-width: 768px) {
  .breadcrumb { padding-top: 5.5rem; }
  .bib-number-display { font-size: 3.5rem; }
}