/* mobile.css — the single responsive layer. Loaded site-wide AFTER all other
   theme CSS so media-query rules cascade on top of desktop styles.

   Breakpoints:
     Tablet  → max-width: 1023px
     Phone   → max-width: 640px
*/

/* ================ HAMBURGER + OFF-CANVAS NAV ================ */
.b3d-nav-hamburger { display: none; }
.b3d-nav-scrim[hidden] { display: none; }

@media (max-width: 1023px) {
  /* Drop the sticky header's stacking context on mobile so the off-canvas
     nav-links below isn't trapped at z-index:50. Header just scrolls with
     the page on mobile — that's fine (and arguably preferable UX on phones). */
  .b3d-nav {
    position: static !important;
    z-index: auto !important;
    backdrop-filter: none !important;
  }

  .b3d-nav-inner {
    grid-template-columns: auto auto 1fr auto !important;
    gap: 12px !important;
    padding: 12px 16px !important;
  }
  .b3d-nav-hamburger {
    display: grid; place-items: center;
    width: 44px; height: 44px; border-radius: 50%;
    background: var(--b3d-fleece-2); border: 0; cursor: pointer;
    color: var(--b3d-ink); font-size: 16px;
  }
  .b3d-nav-hamburger:hover { background: var(--b3d-n-200); }

  /* Off-canvas nav — slides from the left, reuses drawer pattern.
     z-index 120 sits above cart drawer (101) and below the auth modal (121). */
  .b3d-nav-links {
    position: fixed;
    top: 0; left: 0; bottom: 0;
    width: 320px; max-width: 85vw;
    background: var(--b3d-fleece);
    border-right: 1px solid var(--b3d-n-200);
    padding: 72px 16px 24px;
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 2px !important;
    z-index: 120;
    transform: translateX(-100%);
    transition: transform 280ms var(--b3d-ease);
    overflow-y: auto;
  }
  .b3d-nav-links.open { transform: translateX(0); }
  .b3d-nav-link, .b3d-nav-trigger {
    justify-content: flex-start;
    padding: 12px 16px !important;
    font-size: 15px !important;
    border-radius: 12px !important;
  }
  .b3d-nav-group { position: static; }
  .b3d-nav-menu {
    position: static !important;
    box-shadow: none !important;
    border: 0 !important;
    padding: 4px 0 4px 16px !important;
    min-width: 0 !important;
  }
  .b3d-nav-group-hover .b3d-nav-menu { display: flex !important; }
  .b3d-nav-group-hover .b3d-nav-link-chevron .fa-chevron-down { display: none; }
  .b3d-nav-submenu {
    position: static !important;
    box-shadow: none !important;
    border: 0 !important;
    padding: 4px 0 4px 16px !important;
    min-width: 0 !important;
    display: flex !important;
  }
  .b3d-nav-submenu-trigger .fa-chevron-right { display: none; }

  .b3d-nav-scrim {
    position: fixed; inset: 0;
    background: rgba(17, 17, 17, 0.4);
    z-index: 119;
    opacity: 0; pointer-events: none;
    transition: opacity 220ms var(--b3d-ease);
  }
  .b3d-nav-scrim.open { opacity: 1; pointer-events: auto; }

  body.b3d-nav-open { overflow: hidden; }
}

@media (max-width: 640px) {
  .b3d-nav-inner { padding: 10px 12px !important; }
  .b3d-brand-name { display: none; }
  .b3d-avatar-name { display: none; }
}

/* ================ CATALOG / ARCHIVE ================ */
@media (max-width: 1023px) {
  .b3d-browse { grid-template-columns: 1fr !important; gap: 20px !important; }

  /* Sidebar → "Category" button that opens the same tree */
  .b3d-cat-sidebar {
    position: static !important;
    padding: 8px !important;
    border-radius: 16px !important;
  }
  .b3d-cat-sidebar-title { display: none; }
  .b3d-cat-sidebar.is-collapsible .b3d-cat-toggle {
    display: flex; align-items: center; justify-content: space-between; gap: 12px;
    width: 100%; padding: 8px 10px;
    background: transparent; border: 0; border-radius: 10px;
    text-align: left; cursor: pointer; color: var(--b3d-ink);
  }
  .b3d-cat-toggle-text { display: flex; flex-direction: column; min-width: 0; }
  .b3d-cat-toggle-label {
    font-family: var(--b3d-font-body); font-weight: 600;
    font-size: 11px; letter-spacing: 0.3px; color: var(--b3d-n-500);
  }
  .b3d-cat-toggle-value {
    font-family: var(--b3d-font-ui); font-weight: 700;
    font-size: 15px; line-height: 1.3; overflow-wrap: anywhere;
  }
  .b3d-cat-toggle .fa-chevron-down { font-size: 12px; transition: transform 150ms var(--b3d-ease); }
  .b3d-cat-sidebar.is-open .b3d-cat-toggle .fa-chevron-down { transform: rotate(180deg); }
  .b3d-cat-sidebar.is-collapsible .b3d-cat-nav { display: none; }
  .b3d-cat-sidebar.is-collapsible.is-open .b3d-cat-nav {
    display: flex;
    margin-top: 6px; padding-top: 8px;
    border-top: 1px solid var(--b3d-n-200);
  }

  .b3d-browse-toolbar { grid-template-columns: 1fr !important; gap: 10px !important; }

  .b3d-grid, .b3d-grid-3 { grid-template-columns: repeat(2, 1fr) !important; }
  .b3d-info-band { grid-template-columns: 1fr !important; }
}

@media (max-width: 640px) {
  .b3d-grid, .b3d-grid-3 { grid-template-columns: 1fr !important; }
  .b3d-hero-title, .b3d-archive-head h1 {
    font-size: clamp(1.75rem, 7vw, 2.5rem) !important;
  }
}

/* ================ PRODUCT DETAIL ================ */
@media (max-width: 1023px) {
  .b3d-product-hero { grid-template-columns: 1fr !important; }
  .b3d-product-info { padding: 24px !important; }
  .b3d-product-title { font-size: 26px !important; }
  .b3d-product-price { font-size: 28px !important; }

  .b3d-tabs { padding: 8px 16px 0 !important; overflow-x: auto; flex-wrap: nowrap; }
  .b3d-tab { white-space: nowrap; }
  .b3d-tabpanel { padding: 20px 20px 24px !important; }

  .b3d-related-grid { grid-template-columns: repeat(2, 1fr) !important; }
}

@media (max-width: 640px) {
  .b3d-crumbs { font-size: 12px !important; flex-wrap: wrap; }
  .b3d-related-grid { grid-template-columns: 1fr !important; }
  .b3d-buy-row { flex-wrap: wrap; }
  .b3d-marketplace-btns { gap: 6px !important; }
}

/* ================ CART PAGE + CHECKOUT ================ */
@media (max-width: 1023px) {
  .b3d-cart-page { grid-template-columns: 1fr !important; gap: 24px !important; }
  .b3d-cart-summary { position: static !important; }
  .b3d-cart-main h1 { font-size: 28px !important; }

  /* One column, with the order summary between the title and the form: the main column's
     wrapper steps aside (display: contents) so the summary can be ordered among its children. */
  .b3d-checkout { display: flex !important; flex-direction: column; gap: 0 !important; }
  .b3d-checkout-main { display: contents; }
  .b3d-checkout-main > * { order: 3; }
  .b3d-checkout .b3d-back { order: 0; align-self: flex-start; margin-bottom: 16px; }
  .b3d-checkout-title { order: 1; font-size: 28px !important; margin-bottom: 20px !important; }
  .b3d-checkout-summary { order: 2; position: static !important; margin-bottom: 24px; }
}

@media (max-width: 640px) {
  /* Phones: narrower gutters (matching the header's 16px) and lighter card padding so forms
     get most of the screen. */
  .b3d-page { padding: 20px 16px 56px; }
  .b3d-page .b3d-page { padding: 0; }
  .b3d-form fieldset { padding: 16px 16px 20px; border-radius: 16px; }
  .b3d-checkout-summary { padding: 20px 16px; border-radius: 16px; }
  .b3d-form-row { grid-template-columns: 1fr !important; }
  .b3d-summary-line { grid-template-columns: 48px 1fr auto !important; gap: 10px !important; }
  .b3d-summary-thumb { width: 48px !important; height: 48px !important; }
  .b3d-line { grid-template-columns: 56px 1fr auto !important; }
  .b3d-line-thumb { width: 56px !important; height: 56px !important; }
}

/* ================ MY ACCOUNT ================ */
@media (max-width: 1023px) {
  .b3d-account-header {
    grid-template-columns: 1fr !important;
    padding: 28px 24px !important;
    gap: 20px !important;
  }
  .b3d-account-stats { gap: 20px !important; }
  .b3d-account-hero h1 { font-size: 24px !important; }

  .b3d-account-body { grid-template-columns: 1fr !important; }
  .b3d-account-tabs {
    flex-direction: row !important;
    overflow-x: auto;
    position: static !important;
    gap: 4px !important;
    -webkit-overflow-scrolling: touch;
  }
  .b3d-account-tab {
    white-space: nowrap;
    flex: 0 0 auto;
    border-radius: 999px !important;
  }

  .b3d-account-panel { padding: 24px !important; }

  .b3d-orders-list { gap: 10px !important; }
  .b3d-order-row {
    grid-template-columns: 1fr auto !important;
    grid-template-areas:
      "id     status"
      "titles total" !important;
    grid-template-rows: auto auto !important;
    row-gap: 8px !important;
    column-gap: 14px !important;
    align-items: start !important;
    padding: 14px 16px !important;
  }
  .b3d-order-meta   { grid-area: id     !important; }
  .b3d-order-titles { grid-area: titles !important; grid-column: auto !important; min-width: 0; }
  .b3d-order-status { grid-area: status !important; justify-self: end; }
  .b3d-order-total  { grid-area: total  !important; justify-self: end; align-self: end; white-space: nowrap; }
  .b3d-order-thumbs { display: none !important; }
  .b3d-order-chev   { display: none !important; }

  .b3d-addr-grid, .b3d-pay-grid { grid-template-columns: 1fr !important; }
}

@media (max-width: 640px) {
  .b3d-account-hero { flex-direction: column !important; align-items: flex-start !important; text-align: left !important; }
  .b3d-account-hero h1 { font-size: 22px !important; }
  .b3d-account-panel { padding: 20px !important; }
}

/* ================ ORDER DETAIL ================ */
@media (max-width: 1023px) {
  .b3d-order-grid { grid-template-columns: 1fr !important; }
  .b3d-order-detail-head {
    grid-template-columns: 1fr !important;
    gap: 16px !important;
  }
  .b3d-order-detail-actions { flex-wrap: wrap; }
  .b3d-order-items { padding: 20px !important; }

  /* Vertical timeline */
  .b3d-order-timeline {
    grid-template-columns: 1fr !important;
    gap: 0 !important;
    padding: 24px 20px !important;
  }
  .b3d-tl-step {
    flex-direction: row !important;
    align-items: flex-start !important;
    gap: 14px !important;
    padding: 8px 0 !important;
    position: relative;
  }
  .b3d-tl-dot { flex: 0 0 32px; z-index: 2; }
  .b3d-tl-text { padding-top: 4px; }
  .b3d-tl-line {
    position: absolute;
    top: 40px; left: 16px;
    width: 2px; height: calc(100% + 4px);
    background: var(--b3d-n-200);
    z-index: 1;
  }
  .b3d-tl-step.done .b3d-tl-line { background: var(--b3d-ink); }
  .b3d-tl-step:last-child .b3d-tl-line { display: none; }

  .b3d-order-item { grid-template-columns: 80px 1fr !important; gap: 14px !important; }
  .b3d-order-item-thumb { width: 80px !important; }
  .b3d-order-item-price { grid-column: 2 / -1; font-size: 16px !important; }
}

@media (max-width: 640px) {
  .b3d-order-detail-head h1 { font-size: 22px !important; }
  .b3d-order-item-actions { flex-direction: column; gap: 6px !important; }
}

/* ================ FOOTER + SIGN-IN ================ */
@media (max-width: 1023px) {
  .b3d-footer-inner { grid-template-columns: 1fr 1fr !important; gap: 24px !important; }
  .b3d-footer { padding: 40px 20px 24px !important; }
}

@media (max-width: 640px) {
  .b3d-footer-inner { grid-template-columns: 1fr !important; }
  .b3d-footer-bot {
    flex-direction: column !important;
    gap: 14px !important;
    text-align: center;
  }
  .b3d-auth-modal { padding: 22px !important; }
  .b3d-auth-head h2 { font-size: 20px !important; }
}

/* ================ TYPOGRAPHY + TOUCH TARGETS ================ */
@media (max-width: 640px) {
  /* Typography caps — prevent desktop-sized headings from overflowing. */
  .b3d-hero-title   { font-size: clamp(1.75rem, 7vw, 2.5rem) !important; line-height: 1.1 !important; }
  .b3d-checkout-title, .b3d-cart-main h1 { font-size: clamp(1.5rem, 6vw, 2rem) !important; }
  .b3d-account-hero h1 { font-size: clamp(1.25rem, 5vw, 1.5rem) !important; }
  .b3d-order-detail-head h1 { font-size: clamp(1.25rem, 5vw, 1.5rem) !important; }
  .b3d-thanks-card h1 { font-size: clamp(1.75rem, 7vw, 2.25rem) !important; }

  /* Thank-you meta: stack Ship to + Total on phone so the address doesn't
     overflow its narrow flex cell. */
  .b3d-thanks-card { padding: 28px 20px !important; }
  .b3d-thanks-meta {
    flex-direction: column !important;
    gap: 14px !important;
    padding: 16px !important;
  }
  .b3d-thanks-meta > div { width: 100%; min-width: 0; }
  .b3d-thanks-meta strong {
    overflow-wrap: anywhere;
    word-break: break-word;
    white-space: normal;
  }

  /* Touch targets — ensure all interactive pills ≥ 40px tall on phone */
  .b3d-btn-sm { padding: 10px 16px !important; font-size: 13px !important; }
  .b3d-nav-link, .b3d-nav-trigger { padding: 12px 14px !important; }

  /* Forms — slightly larger inputs on phone; 16px avoids iOS Safari focus-zoom. */
  .b3d-form input, .b3d-form select,
  .b3d-auth-form input { font-size: 16px !important; padding: 12px 14px !important; }
}