/*
 * Nano Cart - frontend default stylesheet (nano-cart.css)
 *
 * Neutral starter, not a design system. Drops in on top of any host
 * site - every selector is scoped under .nano-cart-main (and its
 * nano-cart-* children) so the host's own chrome (header, nav, footer)
 * is never touched. Sibling stylesheet to Nano CMS's nano.css; the two
 * share the same family palette, type scale, and spacing rhythm so
 * deployments running both products feel coherent.
 *
 * THEMING CONTRACT
 *   Override any of the custom properties below in a small
 *   theme-custom.css to re-theme the shop without editing this file.
 *   See template.php for how to wire the optional theme file in.
 *
 *     --nano-cart-font            Body font (Inter, system fallback)
 *     --nano-cart-font-display    Heading/title font (Inter, system fallback)
 *     --nano-cart-font-size-base  Body font size
 *     --nano-cart-line-height     Body line height
 *     --nano-cart-text            Primary text color
 *     --nano-cart-text-muted      Prices, descriptions, secondary text
 *     --nano-cart-bg              Page / card background
 *     --nano-cart-border          Card and divider borders
 *     --nano-cart-accent          Buy button, links, focus highlights
 *     --nano-cart-link-hover      Subtle link / title hover colour
 *     --nano-cart-content-width   Max width of the shop area
 *     --nano-cart-spacing-unit    Base spacing rhythm
 *     --nano-cart-radius          Corner radius on cards, code, images
 *     --nano-cart-gap             Vertical space between grid cards
 *     --nano-cart-card-image-ratio   Card thumbnail aspect-ratio (width/height,
 *                                    e.g. 1 = square); scales with card width
 *     --nano-cart-card-image-fit     "cover" or "contain"
 *
 * Includes a prefers-color-scheme: dark override at the bottom.
 */

.nano-cart-main {
  --nano-cart-font:            "Inter", system-ui, sans-serif;
  --nano-cart-font-display:    "Inter", system-ui, sans-serif;
  --nano-cart-font-size-base:  1.05rem;
  --nano-cart-line-height:     1.65;
  --nano-cart-text:            #1a1a1a;
  --nano-cart-text-muted:      #666;
  --nano-cart-bg:              #ffffff;
  --nano-cart-bg-soft:         #f6f8fa;
  --nano-cart-border:          #e5e5e5;
  --nano-cart-border-soft:     #efefef;
  --nano-cart-accent:          #0066cc;
  --nano-cart-accent-hover:    #004d99;
  --nano-cart-link-hover:      #999999;
  --nano-cart-button:          #ff4d00;
  --nano-cart-button-hover:    #e64500;
  --nano-cart-shadow:          0 2px 4px rgba(0,0,0,0.08);
  --nano-cart-shadow-lift:     0 12px 28px rgba(0,0,0,0.12), 0 4px 10px rgba(0,0,0,0.06);
  --nano-cart-content-width:   1100px;
  --nano-cart-spacing-unit:    1rem;
  --nano-cart-radius:          6px;
  --nano-cart-radius-sm:       4px;
  --nano-cart-gap:             1.5rem;
  --nano-cart-card-image-ratio:  1;
  --nano-cart-card-image-fit:    cover;

  font-family: var(--nano-cart-font);
  font-size: var(--nano-cart-font-size-base);
  line-height: var(--nano-cart-line-height);
  color: var(--nano-cart-text);
  background: var(--nano-cart-bg);
  max-width: var(--nano-cart-content-width);
  margin: 0 auto;
  padding: calc(var(--nano-cart-spacing-unit) * 2) var(--nano-cart-spacing-unit);
  box-sizing: border-box;
}

.nano-cart-main *,
.nano-cart-main *::before,
.nano-cart-main *::after { box-sizing: inherit; }

.nano-cart-main img, .nano-cart-main picture {
  max-width: 100%;
  display: block;
}

/* Prose styling for markdown-rendered content (product long_description
 * and category description). Matches Nano CMS's prose pass. */
.nano-cart-main h1,
.nano-cart-main h2,
.nano-cart-main h3,
.nano-cart-main h4 {
  line-height: 1.25;
  margin: calc(var(--nano-cart-spacing-unit) * 1.5) 0 var(--nano-cart-spacing-unit);
  color: var(--nano-cart-text);
}
.nano-cart-product-description h2 { font-size: 1.5rem; }
.nano-cart-product-description h3 { font-size: 1.25rem; }
.nano-cart-product-description h4 { font-size: 1.1rem; }
.nano-cart-product-description blockquote {
  border-left: 3px solid var(--nano-cart-border);
  padding: 0 var(--nano-cart-spacing-unit);
  color: var(--nano-cart-text-muted);
  margin: 0 0 var(--nano-cart-spacing-unit) 0;
}
.nano-cart-product-description hr {
  border: 0;
  border-top: 1px solid var(--nano-cart-border);
  margin: calc(var(--nano-cart-spacing-unit) * 2) 0;
}
.nano-cart-product-description code,
.nano-cart-product-description pre,
.nano-cart-category-description code,
.nano-cart-category-description pre {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.9em;
}
.nano-cart-product-description code,
.nano-cart-category-description code {
  background: rgba(0, 0, 0, 0.05);
  padding: 0.1em 0.35em;
  border-radius: var(--nano-cart-radius-sm);
}
.nano-cart-product-description pre {
  background: rgba(0, 0, 0, 0.05);
  padding: var(--nano-cart-spacing-unit);
  border-radius: var(--nano-cart-radius);
  overflow-x: auto;
}
.nano-cart-product-description pre code { background: none; padding: 0; }

/* Site header / footer (minimal defaults, operator replaces). */
.nano-cart-site-header,
.nano-cart-site-footer {
  font-family: var(--nano-cart-font);
  padding: 1rem;
  max-width: 1200px;
  margin: 0 auto;
}
.nano-cart-site-header a {
  color: var(--nano-cart-text);
  text-decoration: none;
  font-weight: 600;
  font-size: 1.1rem;
}
.nano-cart-footer-attribution {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--nano-cart-border);
  font-size: 0.8125rem;
  color: var(--nano-cart-text-muted);
  text-align: center;
}
.nano-cart-footer-attribution a {
  color: var(--nano-cart-text-muted);
  text-decoration: underline;
  text-decoration-color: var(--nano-cart-border);
  text-underline-offset: 0.15em;
}
.nano-cart-footer-attribution a:hover { color: var(--nano-cart-accent); }

/* Breadcrumb: contained pill so it reads as a distinct nav row at the
   top of the page, not loose text floating above the title. */
.nano-cart-breadcrumb {
  font-size: 0.875rem;
  color: var(--nano-cart-text-muted);
  margin-bottom: 1.75rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.25rem;
  background: var(--nano-cart-bg-soft);
  border: 1px solid var(--nano-cart-border-soft);
  border-radius: var(--nano-cart-radius);
}
.nano-cart-breadcrumb-item {
  color: var(--nano-cart-text-muted);
  text-decoration: none;
}
a.nano-cart-breadcrumb-item:hover {
  color: var(--nano-cart-text);
  text-decoration: underline;
}
.nano-cart-breadcrumb-separator {
  color: var(--nano-cart-border);
}

/* Section headings. */
.nano-cart-section {
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--nano-cart-border-soft);
}
.nano-cart-section-title {
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 0 0 1.25rem;
  color: var(--nano-cart-text);
}

/* Grid + card system. */
.nano-cart-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--nano-cart-gap);
  --nano-cart-cards-per-row: 4;
}
.nano-cart-category > .nano-cart-grid,
.nano-cart-category > .nano-cart-empty {
  border-top: 1px solid var(--nano-cart-border-soft);
  padding-top: 2rem;
}
@media (min-width: 560px) {
  .nano-cart-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 900px) {
  .nano-cart-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 1200px) {
  .nano-cart-grid { grid-template-columns: repeat(var(--nano-cart-cards-per-row, 4), 1fr); }
}

.nano-cart-card {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  background: var(--nano-cart-bg);
  border: 1px solid var(--nano-cart-border);
  border-radius: var(--nano-cart-radius);
  overflow: hidden;
  box-shadow: var(--nano-cart-shadow);
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}
.nano-cart-card:hover {
  box-shadow: var(--nano-cart-shadow-lift);
  transform: translateY(-2px);
}
.nano-cart-card:hover .nano-cart-card-title {
  color: var(--nano-cart-link-hover);
}
.nano-cart-card-image {
  overflow: hidden;
  /* Aspect-ratio box, not a fixed pixel height: the box scales with the card
   * width so the thumbnail framing (and padding) stays identical at every
   * breakpoint. A fixed height turned into a wide landscape box on full-width
   * cards, which cropped square images and made the padding differ per
   * viewport. The ratio is driven by the admin "thumbnail proportion" setting
   * (default 1 = square); fit/position/background still apply inside it. */
  aspect-ratio: var(--nano-cart-card-image-ratio, 1);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--nano-cart-card-image-bg, transparent);
}
.nano-cart-card-image picture,
.nano-cart-card-image img {
  width: 100%;
  height: 100%;
  object-fit: var(--nano-cart-card-image-fit);
  object-position: var(--nano-cart-card-image-position, 50% 50%);
  transition: transform 200ms ease-out;
}
.nano-cart-card:hover .nano-cart-card-img {
  transform: scale(1.02);
}
.nano-cart-card-body {
  padding: 0.85rem 1rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  flex: 1;
  text-align: center;
}
.nano-cart-card-title {
  margin: 0;
  font-family: var(--nano-cart-font-display);
  font-size: 1.3rem;
  font-weight: 600;
  line-height: 1.25;
  color: var(--nano-cart-text);
  transition: color 200ms ease-out;
}
.nano-cart-card-price {
  margin: auto 0 0;
  color: var(--nano-cart-text);
  font-size: 1.15rem;
  font-weight: 600;
}

/* Hero featured. */
.nano-cart-hero { margin-bottom: 2rem; }
.nano-cart-hero-link {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  background: var(--nano-cart-bg);
  border: 1px solid var(--nano-cart-border);
  border-radius: var(--nano-cart-radius);
  overflow: hidden;
  box-shadow: var(--nano-cart-shadow);
}
.nano-cart-hero-image { background: var(--nano-cart-card-image-bg, var(--nano-cart-bg-soft)); }
.nano-cart-hero-image picture, .nano-cart-hero-image img {
  width: 100%; height: auto; display: block;
}
.nano-cart-hero-body {
  padding: 1.5rem 1.75rem;
  background: var(--nano-cart-bg-soft, #f6f8fa);
}
.nano-cart-hero-title {
  margin: 0 0 0.5rem;
  font-size: 1.5rem;
  font-weight: 700;
}
.nano-cart-hero-summary {
  margin: 0 0 0.75rem;
  color: var(--nano-cart-text-muted);
}
.nano-cart-hero-price {
  display: block;
  width: 100%;
  box-sizing: border-box;
  text-align: center;
  margin: 1rem 0 0;
  padding: 1.35rem 1.5rem;
  min-height: 66px;
  background: var(--nano-cart-button);
  color: #fff;
  border-radius: var(--nano-cart-radius);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  box-shadow: 0 4px 16px rgba(255, 77, 0, 0.3);
  transition: background-color 150ms ease-out, box-shadow 150ms ease-out;
}
.nano-cart-hero-link:hover .nano-cart-hero-price {
  background: var(--nano-cart-button-hover);
  box-shadow: 0 6px 20px rgba(255, 77, 0, 0.36);
}
@media (min-width: 768px) {
  .nano-cart-hero-link { flex-direction: row; }
  .nano-cart-hero-image { flex: 0 0 55%; }
  .nano-cart-hero-body {
    flex: 1;
    align-self: stretch;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 2rem 2.5rem 2rem 2rem;
  }
}

/* Category page: locked layout with three defined rows.
   1. Breadcrumb pill (handled above)
   2. Large H1 title on its own row, full width
   3. Header: image column + description column in a real CSS grid
      (stacks on mobile; image-left vs image-right swaps column order)
   4. Products grid below
   No floats, no text-wrap-around-image. Each element has its position. */

.nano-cart-page-title,
.nano-cart-category-title {
  margin: 0 0 1.5rem;
  font-family: var(--nano-cart-font-display);
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--nano-cart-text);
}

.nano-cart-category-header {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-bottom: 2rem;
}
.nano-cart-category-banner {
  margin: 0;
  border: 1px solid var(--nano-cart-border);
  border-radius: var(--nano-cart-radius);
  box-shadow: var(--nano-cart-shadow);
  overflow: hidden;
}
.nano-cart-category-banner picture,
.nano-cart-category-banner img {
  display: block;
  width: 100%;
  height: auto;
}
.nano-cart-category-description {
  color: var(--nano-cart-text);
  align-self: start;
}
.nano-cart-category-description p:first-child { margin-top: 0; }
.nano-cart-category-description p:last-child { margin-bottom: 0; }

@media (min-width: 768px) {
  .nano-cart-category-header.has-banner {
    grid-template-columns: 320px 1fr;
    gap: 2rem;
  }
  .nano-cart-category-header.has-banner.nano-cart-image-right .nano-cart-category-banner {
    order: 2;
  }
}

.nano-cart-empty {
  text-align: center;
  color: var(--nano-cart-text-muted);
  padding: 2.5rem 1.5rem;
  background: var(--nano-cart-bg-soft);
  border: 1px dashed var(--nano-cart-border);
  border-radius: var(--nano-cart-radius);
}
.nano-cart-empty h1 {
  color: var(--nano-cart-text);
  margin: 0 0 0.75rem;
  font-size: 1.5rem;
}
.nano-cart-empty p { margin: 0 0 0.5rem; }
.nano-cart-empty-link {
  display: inline-block;
  margin-top: 0.5rem;
  color: var(--nano-cart-accent);
  text-decoration: none;
  font-weight: 500;
}
.nano-cart-empty-link:hover { color: var(--nano-cart-accent-hover); text-decoration: underline; }

/* Product page. */
.nano-cart-product { display: block; }

/* Classic product layout: image left, details right; description below.
   Flex with wrap so it stacks on narrow screens with no media queries. */
.nano-cart-product-layout {
  display: flex;
  flex-wrap: wrap;
  gap: 3rem;
  align-items: flex-start;
  margin-bottom: 2.5rem;
}
.nano-cart-product-layout > .nano-cart-gallery {
  flex: 0 1 auto;       /* width follows the image (its image_width setting) */
  min-width: 200px;
}
.nano-cart-product-layout > .nano-cart-product-meta {
  flex: 1 1 280px;      /* flexes to fill whatever space the image leaves */
  min-width: 0;
  margin-bottom: 0;
}

.nano-cart-gallery { margin: 0; }
.nano-cart-gallery-main { margin: 0; }
.nano-cart-gallery-main picture { display: block; }
.nano-cart-gallery-main-img {
  max-width: 100%;       /* the image_width setting drives the width; this only caps overflow */
  height: auto;          /* full image, no fixed-height box, no letterbox */
  display: block;
  border-radius: var(--nano-cart-radius);
  border: 1px solid var(--nano-cart-border);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
  background: var(--nano-cart-card-image-bg, transparent);
}
.nano-cart-gallery-thumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 2.5rem;
}
.nano-cart-gallery-thumb { flex: 0 0 auto; margin: 0; }
.nano-cart-gallery-thumb-img {
  width: 72px; height: 72px;
  object-fit: cover;
  border-radius: var(--nano-cart-radius-sm);
  border: 1px solid var(--nano-cart-border-soft);
  background: var(--nano-cart-bg-soft);
  cursor: pointer;
}
.nano-cart-product-summary {
  margin: 0 0 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--nano-cart-border-soft, #eee);
  color: var(--nano-cart-text-soft, #555);
  line-height: 1.55;
}

/* Lightbox for gallery images */
.nano-cart-lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 2rem;
  cursor: zoom-out;
}
.nano-cart-lightbox img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: 4px;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
}
.nano-cart-lightbox-close {
  position: absolute;
  top: 0.75rem;
  right: 1.25rem;
  background: none;
  border: 0;
  color: #fff;
  font-size: 2.5rem;
  line-height: 1;
  cursor: pointer;
}

.nano-cart-product-meta {
  margin-bottom: 1.5rem;
}
.nano-cart-product-title {
  margin: 0 0 1.5rem;
  font-family: var(--nano-cart-font-display);
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}
.nano-cart-product-price {
  margin: 0 0 1.1rem;
  padding-bottom: 1.1rem;
  border-bottom: 1px solid var(--nano-cart-border-soft, #eee);
  font-size: 2.4rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--nano-cart-text);
}

/* Buy panel: groups the price and CTA together, close to each other. */
.nano-cart-buy-panel {
  margin-top: 1.75rem;
  padding: 1.5rem;
  border: 1px solid var(--nano-cart-border-soft, #eee);
  border-radius: var(--nano-cart-radius);
  background: var(--nano-cart-bg-soft, #f7f8fa);
}
.nano-cart-buy-panel .nano-cart-product-price { margin: 0 0 1.1rem; }

/* Trust line under the buy button: who handles checkout + new-tab notice. */
.nano-cart-checkout-notice {
  margin: 0.85rem 0 0;
  font-size: 0.85rem;
  line-height: 1.4;
  text-align: center;
  color: var(--nano-cart-text-muted, #666);
}
.nano-cart-lock-icon {
  display: inline-block;
  vertical-align: -2px;
  margin: 0 0.15rem;
  opacity: 0.85;
}

/* Buy button. */
.nano-cart-buy-button {
  display: inline-block;
  background: var(--nano-cart-button);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  padding: 0.85rem 1.5rem;
  border-radius: var(--nano-cart-radius);
  min-height: 44px;
  line-height: 1.4;
  transition: background-color 150ms ease-out, transform 100ms ease-out, box-shadow 150ms ease-out;
}
/* On the product page the CTA is full-width and prominent. */
.nano-cart-product .nano-cart-buy-button {
  display: block;
  width: 100%;
  text-align: center;
  padding: 1.35rem 1.5rem;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  min-height: 66px;
  box-shadow: 0 4px 16px rgba(255, 77, 0, 0.3);
}
.nano-cart-buy-button:hover {
  background: var(--nano-cart-button-hover);
}
.nano-cart-product .nano-cart-buy-button:hover {
  box-shadow: 0 4px 14px rgba(255, 77, 0, 0.32);
  transform: translateY(-1px);
}
.nano-cart-buy-button:active {
  transform: translateY(1px);
}

/* Sticky buy button on mobile. Activated by JS adding .nano-cart-sticky. */
@media (max-width: 767px) {
  .nano-cart-buy-button.nano-cart-sticky {
    position: fixed;
    bottom: 0; left: 0; right: 0;
    border-radius: 0;
    text-align: center;
    z-index: 100;
    box-shadow: 0 -2px 12px rgba(0,0,0,0.15);
    margin: 0;
  }
}

/* Long description (markdown-rendered). */
.nano-cart-product-description {
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--nano-cart-border-soft, #eee);
}
.nano-cart-product-description p { margin: 0 0 1rem; }
.nano-cart-product-description h2 {
  font-size: 1.25rem; margin: 1.5rem 0 0.75rem; font-weight: 600;
}
.nano-cart-product-description h3 {
  font-size: 1.1rem; margin: 1.25rem 0 0.5rem; font-weight: 600;
}
.nano-cart-product-description ul,
.nano-cart-product-description ol {
  margin: 0 0 1rem; padding-left: 1.5rem;
}
.nano-cart-product-description li { margin-bottom: 0.25rem; }
.nano-cart-product-description a {
  color: var(--nano-cart-accent);
  text-decoration: underline;
}
.nano-cart-product-description a:hover { color: var(--nano-cart-accent-hover); }
.nano-cart-product-description strong { font-weight: 600; }
.nano-cart-product-description code {
  background: var(--nano-cart-bg-soft);
  padding: 0.1em 0.3em;
  border-radius: var(--nano-cart-radius-sm);
  font-size: 0.92em;
}

/* Lazy-load shimmer. JS sets data-src then swaps to src and adds
   .nano-cart-loaded; CSS handles the fade. */
.nano-cart-main img[data-src]:not(.nano-cart-loaded) {
  opacity: 0;
}
.nano-cart-main img.nano-cart-loaded {
  opacity: 1;
  transition: opacity 250ms ease-out;
}

@keyframes nano-cart-shimmer {
  0%   { background-position: -400px 0; }
  100% { background-position:  400px 0; }
}
.nano-cart-card-image:has(img[data-src]:not(.nano-cart-loaded)),
.nano-cart-gallery-main:has(img[data-src]:not(.nano-cart-loaded)) {
  background:
    linear-gradient(90deg,
      var(--nano-cart-bg-soft) 25%,
      var(--nano-cart-border-soft) 50%,
      var(--nano-cart-bg-soft) 75%);
  background-size: 800px 100%;
  animation: nano-cart-shimmer 1.4s infinite linear;
}

/* Broken-image fallback (JS adds .nano-cart-error). */
.nano-cart-main img.nano-cart-error {
  background: var(--nano-cart-bg-soft);
  min-height: 60px;
  animation: none;
}

/* Dark mode. Mirrors the Nano CMS dark override so both products
   feel consistent for users who run their OS in dark mode. */
@media (prefers-color-scheme: dark) {
  .nano-cart-main {
    --nano-cart-text:        #e8e8e8;
    --nano-cart-text-muted:  #999;
    --nano-cart-bg:          #121212;
    --nano-cart-bg-soft:     #1c1c1c;
    --nano-cart-border:      #2a2a2a;
    --nano-cart-border-soft: #232323;
    --nano-cart-accent:      #5aa8ff;
    --nano-cart-accent-hover:#88c2ff;
  }
  .nano-cart-product-description code,
  .nano-cart-product-description pre,
  .nano-cart-category-description code { background: rgba(255, 255, 255, 0.06); }
}