/* lună storefront components (TASK-024, ADR-014). Needs tokens.css loaded first.
   Every colour comes from a --ds-* token (design-system.test.ts refuses hex / rgb / hsl literals here).
   Media queries use the breakpoints documented in tokens.css: 640 px and 960 px. */

/* ── Base ───────────────────────────────────────────────────────────────── */
.ds {
  margin: 0;
  background: var(--ds-color-canvas);
  color: var(--ds-color-ink);
  font-family: var(--ds-font-body);
  font-size: var(--ds-text-body);
  line-height: var(--ds-leading-body);
  font-weight: var(--ds-weight-regular);
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
}
.ds *,
.ds *::before,
.ds *::after {
  box-sizing: border-box;
}
.ds img {
  display: block;
  max-width: 100%;
}
.ds :focus-visible {
  outline: 2px solid transparent; /* invisible normally; forced-colours mode paints it, as the shadow is dropped there */
  outline-offset: 2px;
  box-shadow: var(--ds-focus-ring);
}
/* a #fragment target stops below the sticky header */
.ds [id] {
  scroll-margin-top: calc(var(--ds-header-height) + var(--ds-space-4));
}

.ds-container {
  width: 100%;
  max-width: calc(var(--ds-container) + 2 * var(--ds-gutter));
  margin-inline: auto;
  padding-inline: var(--ds-gutter);
}
.ds-container--narrow {
  max-width: calc(var(--ds-container-narrow) + 2 * var(--ds-gutter));
}
.ds-section {
  padding-block: var(--ds-section-gap);
}

.ds-visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ── Type ───────────────────────────────────────────────────────────────── */
.ds-display,
.ds-h1,
.ds-h2,
.ds-h3 {
  margin: 0;
  font-family: var(--ds-font-heading);
  font-weight: var(--ds-weight-semibold);
  color: var(--ds-color-ink);
  text-wrap: balance;
}
.ds-display {
  font-size: var(--ds-text-display);
  line-height: var(--ds-leading-display);
}
.ds-h1 {
  font-size: var(--ds-text-h1);
  line-height: var(--ds-leading-h1);
}
.ds-h2 {
  font-size: var(--ds-text-h2);
  line-height: var(--ds-leading-h2);
}
.ds-h3 {
  font-size: var(--ds-text-h3);
  line-height: var(--ds-leading-h3);
}
.ds-text {
  margin: 0;
  font-size: var(--ds-text-body);
  line-height: var(--ds-leading-body);
}
.ds-small {
  font-size: var(--ds-text-small);
  line-height: var(--ds-leading-small);
}
.ds-muted {
  color: var(--ds-color-ink-muted);
}
.ds-overline {
  font-family: var(--ds-font-body);
  font-size: var(--ds-text-overline);
  line-height: var(--ds-leading-overline);
  font-weight: var(--ds-weight-medium);
  letter-spacing: var(--ds-tracking-overline);
  text-transform: uppercase;
  color: var(--ds-color-ink-muted);
}
.ds-link {
  color: var(--ds-color-link);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
  transition: color var(--ds-duration-base) var(--ds-ease-standard);
}
.ds-link:hover {
  color: var(--ds-color-ink);
}

/* ── Header and navigation ──────────────────────────────────────────────── */
.ds-header {
  position: sticky;
  top: 0;
  z-index: var(--ds-z-header);
  background: var(--ds-color-canvas);
  border-bottom: var(--ds-border-width) solid var(--ds-color-line);
}
.ds-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--ds-space-4);
  height: var(--ds-header-height);
}
.ds-logo {
  display: inline-flex;
  align-items: center;
  min-height: var(--ds-control-height);
  color: var(--ds-color-accent);
  text-decoration: none;
}
.ds-logo img,
.ds-logo svg {
  height: var(--ds-logo-height);
  width: auto;
}
.ds-nav {
  display: none;
  align-items: center;
  gap: var(--ds-space-8);
}
.ds-nav__link {
  display: inline-flex;
  align-items: center;
  min-height: var(--ds-control-height);
  font-size: var(--ds-text-overline);
  font-weight: var(--ds-weight-semibold);
  letter-spacing: var(--ds-tracking-overline);
  text-transform: uppercase;
  color: var(--ds-color-ink);
  text-decoration: none;
  border-bottom: var(--ds-border-width) solid transparent;
  transition:
    color var(--ds-duration-base) var(--ds-ease-standard),
    border-color var(--ds-duration-base) var(--ds-ease-standard);
}
.ds-nav__link:hover,
.ds-nav__link[aria-current='page'] {
  color: var(--ds-color-link);
  border-bottom-color: var(--ds-color-link);
}
.ds-header__actions {
  display: flex;
  align-items: center;
  gap: var(--ds-space-1);
}
@media (min-width: 960px) {
  .ds-nav {
    display: flex;
  }
}

/* phone menu: a full-width panel under the header */
.ds-drawer {
  position: fixed;
  inset: var(--ds-header-height) 0 0 0;
  z-index: var(--ds-z-drawer);
  overflow-y: auto;
  background: var(--ds-color-canvas);
  padding: var(--ds-space-6) var(--ds-gutter);
}
.ds-drawer[hidden] {
  display: none;
}
@media (min-width: 960px) {
  .ds-drawer {
    display: none;
  }
}
.ds-drawer__link {
  display: flex;
  align-items: center;
  min-height: var(--ds-control-height-lg);
  border-bottom: var(--ds-border-width) solid var(--ds-color-line);
  font-family: var(--ds-font-heading);
  font-size: var(--ds-text-h3);
  font-weight: var(--ds-weight-semibold);
  color: var(--ds-color-ink);
  text-decoration: none;
}

/* ── Buttons ────────────────────────────────────────────────────────────── */
.ds-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--ds-space-2);
  min-height: var(--ds-control-height);
  padding: 0 var(--ds-space-6);
  border: var(--ds-border-width) solid transparent;
  border-radius: var(--ds-radius-pill);
  font-family: var(--ds-font-body);
  font-size: var(--ds-text-button);
  font-weight: var(--ds-weight-medium);
  line-height: var(--ds-leading-tight);
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition:
    background-color var(--ds-duration-base) var(--ds-ease-standard),
    color var(--ds-duration-base) var(--ds-ease-standard),
    border-color var(--ds-duration-base) var(--ds-ease-standard);
}
.ds-btn:disabled,
.ds-btn[aria-disabled='true'] {
  cursor: not-allowed;
  opacity: 0.5;
}
.ds-btn[aria-disabled='true'] {
  pointer-events: none; /* a link: also drop its href, so the keyboard cannot follow it */
}
.ds-btn--primary {
  background: var(--ds-color-primary);
  color: var(--ds-color-on-primary);
}
.ds-btn--primary:hover:not(:disabled) {
  background: var(--ds-color-primary-hover);
}
.ds-btn--secondary {
  background: transparent;
  color: var(--ds-color-ink);
  border-color: var(--ds-color-line-strong);
}
.ds-btn--secondary:hover:not(:disabled) {
  border-color: var(--ds-color-ink);
  background: var(--ds-color-surface);
}
.ds-btn--ghost {
  background: transparent;
  color: var(--ds-color-link);
  padding-inline: var(--ds-space-3);
}
.ds-btn--ghost:hover:not(:disabled) {
  background: var(--ds-color-surface-2);
}
.ds-btn--lg {
  min-height: var(--ds-control-height-lg);
  padding-inline: var(--ds-space-8);
}
.ds-btn--block {
  width: 100%;
}

.ds-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--ds-control-height);
  height: var(--ds-control-height);
  padding: 0;
  border: 0;
  border-radius: var(--ds-radius-round);
  background: transparent;
  color: var(--ds-color-ink);
  cursor: pointer;
  transition: background-color var(--ds-duration-base) var(--ds-ease-standard);
}
.ds-icon-btn:hover {
  background: var(--ds-color-surface-2);
}
.ds-icon-btn--outline {
  border: var(--ds-border-width) solid var(--ds-color-line-strong);
}
.ds-icon-btn svg {
  width: 1.375rem;
  height: 1.375rem;
}
/* the phone-menu button is an icon button; this rule sits after .ds-icon-btn so its display:none wins */
@media (min-width: 960px) {
  .ds-menu-toggle {
    display: none;
  }
}

/* ── Filter chips (catalog categories) ──────────────────────────────────── */
.ds-chips {
  display: flex;
  gap: var(--ds-space-2);
  overflow-x: auto;
  padding: var(--ds-space-1); /* room for the focus ring inside the scroll box */
  margin-inline: calc(-1 * var(--ds-space-1));
  scrollbar-width: none;
}
.ds-chips::-webkit-scrollbar {
  display: none;
}
@media (min-width: 960px) {
  .ds-chips {
    flex-wrap: wrap;
    justify-content: center;
    overflow: visible;
  }
}
.ds-chip {
  flex: none;
  display: inline-flex;
  align-items: center;
  min-height: var(--ds-control-height);
  padding: 0 var(--ds-space-4);
  border: var(--ds-border-width) solid var(--ds-color-line-strong);
  border-radius: var(--ds-radius-pill);
  background: transparent;
  color: var(--ds-color-ink);
  font-family: var(--ds-font-body);
  font-size: var(--ds-text-small);
  text-decoration: none;
  cursor: pointer;
  transition:
    background-color var(--ds-duration-base) var(--ds-ease-standard),
    border-color var(--ds-duration-base) var(--ds-ease-standard);
}
.ds-chip:hover {
  border-color: var(--ds-color-ink);
}
.ds-chip[aria-pressed='true'],
.ds-chip[aria-current='page'] {
  background: var(--ds-color-ink);
  border-color: var(--ds-color-ink);
  color: var(--ds-color-canvas);
}

/* ── Product grid and card ──────────────────────────────────────────────── */
.ds-grid {
  display: grid;
  grid-template-columns: repeat(var(--ds-grid-columns), minmax(0, 1fr));
  column-gap: var(--ds-grid-gap-x);
  row-gap: var(--ds-grid-gap-y);
  margin: 0;
  padding: 0;
  list-style: none;
}
.ds-card {
  display: flex;
  flex-direction: column;
  gap: var(--ds-space-1);
  color: inherit;
  text-decoration: none;
}
.ds-card__media {
  position: relative;
  aspect-ratio: var(--ds-photo-ratio);
  overflow: hidden;
  margin-bottom: var(--ds-space-2);
  border-radius: var(--ds-radius-none);
  background: var(--ds-color-surface-2);
}
.ds-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--ds-duration-slow) var(--ds-ease-out);
}
@media (hover: hover) {
  .ds-card:hover .ds-card__media img {
    transform: scale(1.03);
  }
  .ds-card:hover .ds-card__title {
    text-decoration: underline;
    text-underline-offset: 0.2em;
  }
}
.ds-card__badge {
  position: absolute;
  top: var(--ds-space-2);
  left: var(--ds-space-2);
}
.ds-card__title {
  margin: 0;
  font-size: var(--ds-text-small);
  line-height: var(--ds-leading-small);
  font-weight: var(--ds-weight-medium);
  color: var(--ds-color-ink);
}
.ds-card__meta {
  font-size: var(--ds-text-overline);
  letter-spacing: var(--ds-tracking-overline);
  text-transform: uppercase;
  color: var(--ds-color-ink-muted);
}

/* ── Price and badge ────────────────────────────────────────────────────── */
.ds-price {
  font-size: var(--ds-text-price);
  font-weight: var(--ds-weight-medium);
  color: var(--ds-color-price);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.ds-price--lg {
  font-size: var(--ds-text-price-lg);
}
.ds-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--ds-space-1);
  padding: var(--ds-space-1) var(--ds-space-3);
  border-radius: var(--ds-radius-pill);
  background: var(--ds-color-accent-soft);
  color: var(--ds-color-ink);
  font-size: var(--ds-text-overline);
  font-weight: var(--ds-weight-medium);
  letter-spacing: var(--ds-tracking-overline);
  text-transform: uppercase;
}
.ds-badge::before {
  content: '';
  width: 0.5rem;
  height: 0.5rem;
  border-radius: var(--ds-radius-round);
  background: var(--ds-color-accent);
}

/* ── Product page ───────────────────────────────────────────────────────── */
.ds-product {
  display: grid;
  grid-template-columns: var(--ds-product-columns);
  gap: var(--ds-space-8);
}
.ds-product__info {
  display: flex;
  flex-direction: column;
  gap: var(--ds-space-4);
}
.ds-product__buy {
  display: flex;
  gap: var(--ds-space-2);
}
@media (min-width: 960px) {
  .ds-product {
    gap: var(--ds-space-16);
    align-items: start;
  }
  .ds-product__info {
    position: sticky;
    top: calc(var(--ds-header-height) + var(--ds-space-6));
  }
}

.ds-gallery {
  display: grid;
  gap: var(--ds-space-3);
}
.ds-gallery__main {
  aspect-ratio: var(--ds-photo-ratio-product);
  overflow: hidden;
  background: var(--ds-color-surface-2);
}
.ds-gallery__main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.ds-gallery__thumbs {
  display: flex;
  gap: var(--ds-space-2);
  overflow-x: auto;
  scrollbar-width: none;
  margin: calc(-1 * var(--ds-space-1));
  padding: var(--ds-space-1); /* room for the focus ring inside the scroll box */
  list-style: none;
}
.ds-thumb {
  flex: none;
  width: var(--ds-thumb-size);
  height: var(--ds-thumb-size);
  padding: 0;
  overflow: hidden;
  border: var(--ds-border-width) solid transparent;
  border-radius: var(--ds-radius-sm);
  background: var(--ds-color-surface-2);
  cursor: pointer;
}
.ds-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.ds-thumb[aria-current='true'] {
  border-color: var(--ds-color-ink);
}
@media (min-width: 960px) {
  .ds-gallery {
    grid-template-columns: var(--ds-thumb-size) minmax(0, 1fr); /* the row's negative margin absorbs its padding */
  }
  .ds-gallery__thumbs {
    flex-direction: column;
    order: -1;
    overflow: visible;
  }
}

/* key–value list: «Диаметр», «Высота», «Материал» */
.ds-specs {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 3fr);
  margin: 0;
  border-top: var(--ds-border-width) solid var(--ds-color-line);
  font-size: var(--ds-text-small);
}
.ds-specs dt,
.ds-specs dd {
  margin: 0;
  padding-block: var(--ds-space-3);
  border-bottom: var(--ds-border-width) solid var(--ds-color-line);
}
.ds-specs dt {
  color: var(--ds-color-ink-muted);
}

/* colour swatches (a lampshade's cord colours) */
.ds-swatches {
  display: flex;
  flex-wrap: wrap;
  gap: var(--ds-space-2);
  margin: 0;
  padding: 0;
  list-style: none;
}
.ds-swatch {
  width: var(--ds-control-height);
  height: var(--ds-control-height);
  padding: 3px;
  border: var(--ds-border-width) solid var(--ds-color-line-strong);
  border-radius: var(--ds-radius-round);
  background: var(--ds-color-surface);
  cursor: pointer;
}
.ds-swatch > span {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: var(--ds-radius-round);
  background: var(--swatch);
}
.ds-swatch[aria-pressed='true'] {
  border-color: var(--ds-color-ink);
}

/* ── Accordion (native details / summary) ───────────────────────────────── */
.ds-accordion {
  border-bottom: var(--ds-border-width) solid var(--ds-color-line);
}
.ds-accordion > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--ds-control-height-lg);
  list-style: none;
  cursor: pointer;
  font-weight: var(--ds-weight-semibold);
}
.ds-accordion > summary::-webkit-details-marker {
  display: none;
}
.ds-accordion > summary::after {
  content: '';
  width: 0.5rem;
  height: 0.5rem;
  margin-right: var(--ds-space-1);
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg);
  transition: transform var(--ds-duration-base) var(--ds-ease-standard);
}
.ds-accordion[open] > summary::after {
  transform: rotate(-135deg);
}
.ds-accordion__body {
  padding-bottom: var(--ds-space-5);
  color: var(--ds-color-ink);
}

/* ── Form fields ────────────────────────────────────────────────────────── */
.ds-field {
  display: flex;
  flex-direction: column;
  gap: var(--ds-space-1);
}
.ds-label {
  font-size: var(--ds-text-small);
  font-weight: var(--ds-weight-medium);
  color: var(--ds-color-ink);
}
.ds-input,
.ds-select,
.ds-textarea {
  width: 100%;
  min-height: var(--ds-control-height-lg);
  padding: var(--ds-space-3) var(--ds-space-4);
  border: var(--ds-border-width) solid var(--ds-color-line-strong);
  border-radius: var(--ds-radius-sm);
  background: var(--ds-color-surface);
  color: var(--ds-color-ink);
  font-family: var(--ds-font-body);
  font-size: var(--ds-text-field);
  line-height: var(--ds-leading-field);
  transition: border-color var(--ds-duration-base) var(--ds-ease-standard);
}
.ds-input::placeholder,
.ds-textarea::placeholder {
  color: var(--ds-color-ink-muted);
}
.ds-input:hover,
.ds-select:hover,
.ds-textarea:hover {
  border-color: var(--ds-color-ink);
}
.ds-input[aria-invalid='true'],
.ds-select[aria-invalid='true'],
.ds-textarea[aria-invalid='true'] {
  border-color: var(--ds-color-danger);
}
.ds-field__error {
  font-size: var(--ds-text-small);
  color: var(--ds-color-danger);
}
.ds-field__hint {
  font-size: var(--ds-text-small);
  color: var(--ds-color-ink-muted);
}

/* ── Footer ─────────────────────────────────────────────────────────────── */
.ds-footer {
  margin-top: var(--ds-section-gap);
  padding-block: var(--ds-space-12);
  background: var(--ds-color-footer-bg);
  color: var(--ds-color-footer-ink);
  font-size: var(--ds-text-small);
}
.ds-footer__grid {
  display: grid;
  gap: var(--ds-space-8);
}
@media (min-width: 640px) {
  .ds-footer__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}
.ds-footer__title {
  margin: 0 0 var(--ds-space-3);
  font-size: var(--ds-text-overline);
  letter-spacing: var(--ds-tracking-overline);
  text-transform: uppercase;
  color: var(--ds-color-footer-muted);
}
.ds-footer__links {
  margin: 0;
  padding: 0;
  list-style: none;
}
/* footer styles for plain links: every link except buttons, .ds-link, the logo and icon buttons, which keep their own.
   The whole selector sits in :where(), so its specificity is 0 and any component class wins. */
:where(.ds-footer a:not(.ds-btn, .ds-link, .ds-logo, .ds-icon-btn)) {
  display: inline-flex;
  align-items: center;
  min-height: var(--ds-control-height);
  color: var(--ds-color-footer-ink);
  text-decoration: none;
  transition: color var(--ds-duration-base) var(--ds-ease-standard);
}
:where(.ds-footer a:not(.ds-btn, .ds-link, .ds-logo, .ds-icon-btn)):hover,
.ds-footer .ds-link:hover {
  color: var(--ds-color-footer-link);
}
.ds-footer .ds-link {
  color: var(--ds-color-footer-ink);
}
/* outline and text buttons on the dark footer */
.ds-footer .ds-btn--secondary {
  color: var(--ds-color-footer-ink);
  border-color: var(--ds-color-footer-muted);
}
.ds-footer .ds-btn--secondary:hover:not(:disabled) {
  background: transparent;
  border-color: var(--ds-color-footer-ink);
}
.ds-footer .ds-btn--ghost {
  color: var(--ds-color-footer-link);
}
.ds-footer .ds-btn--ghost:hover:not(:disabled) {
  background: transparent;
  color: var(--ds-color-footer-ink);
}
.ds-footer__legal {
  margin-top: var(--ds-space-10);
  padding-top: var(--ds-space-6);
  border-top: var(--ds-border-width) solid var(--ds-color-footer-muted);
  color: var(--ds-color-footer-muted);
}
.ds-footer :focus-visible {
  box-shadow: var(--ds-focus-ring-dark);
}