/**
 * Fixed UI stack — bottom nav, sticky bars, FABs (mobile + desktop).
 * Prevents overlap on PDP, cart, PLP, and global cart/AI widgets.
 */
:root {
  --mse-nav-gap: 12px;
  --mse-nav-h: 74px;
  --mse-nav-stack: calc(var(--mse-nav-gap) + var(--mse-nav-h) + 12px + env(safe-area-inset-bottom, 0px));
  --mse-action-bar-h: 56px;
  --mse-above-nav: var(--mse-nav-stack);
  --mse-above-action: calc(var(--mse-nav-stack) + var(--mse-action-bar-h) + 12px);
}

/* ── PDP: sticky Add to Cart above bottom nav ── */
@media (max-width: 767px) {
  body.product-detail-public {
    --mse-action-bar-h: 64px;
  }

  body.product-detail-public .pd-cart-anchor {
    height: var(--mse-action-bar-h);
    margin: 8px 0 0;
  }

  body.product-detail-public .pd-cart-anchor .pd-cart-split {
    position: fixed;
    left: 10px;
    right: 10px;
    bottom: var(--mse-above-nav);
    z-index: 101;
    margin: 0;
    border-radius: 14px;
    box-shadow: 0 10px 32px rgba(15, 23, 42, 0.18);
  }

  body.product-detail-public .pd-page {
    padding-bottom: calc(var(--mse-above-action) + 28px) !important;
  }

  body.product-detail-public .pd-shell {
    padding-bottom: 0;
  }

  body.product-detail-public .pd-below {
    padding-bottom: 8px;
  }

  body.product-detail-public .rm-help-fab,
  body.product-detail-public .ms-ai-fab,
  body.product-detail-public .ms-ai-panel {
    display: none !important;
  }
}

/* ── Cart page mobile checkout bar ── */
@media (max-width: 899px) {
  body.rental-cart .rc-mobile-bar {
    bottom: var(--mse-above-nav);
    z-index: 99;
  }
  body.rental-cart .rc-page {
    padding-bottom: calc(var(--mse-above-action) + 32px);
  }
}

/* ── Rental PLP / cart: help FAB above bottom nav only ── */
@media (max-width: 767px) {
  body.rental-plp:not(.product-detail-public) .rm-help-fab {
    bottom: var(--mse-above-nav);
    z-index: 85;
  }
  body.rental-cart .rm-help-fab {
    bottom: var(--mse-above-action);
    z-index: 85;
  }
}

/* ── Global sticky cart bar: hide where page has its own checkout UX ── */
body.product-detail-public #stickyCartBar,
body.rental-cart #stickyCartBar,
body.mse-checkout-page #stickyCartBar {
  display: none !important;
}

/* Mobile: sticky cart bar above bottom nav (non-rental pages e.g. home, services) */
@media (max-width: 767px) {
  body.has-app-bottom-nav:not(.product-detail-public):not(.rental-cart):not(.mse-checkout-page) .sticky-cart-bar {
    bottom: var(--mse-above-nav);
    left: 10px;
    right: 10px;
    z-index: 98;
    border-radius: 14px;
    border: 1px solid rgba(148, 163, 184, 0.28);
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.12);
    padding-bottom: 10px;
  }

  /* When sticky cart bar is visible, lift AI chat above it */
  body.has-sticky-cart.has-app-bottom-nav:not(.product-detail-public):not(.rental-cart):not(.mse-checkout-page) .ms-ai-fab {
    bottom: calc(var(--mse-above-nav) + var(--mse-action-bar-h) + 8px);
  }
  body.has-sticky-cart.has-app-bottom-nav:not(.product-detail-public):not(.rental-cart):not(.mse-checkout-page) .ms-ai-panel {
    bottom: calc(var(--mse-above-nav) + var(--mse-action-bar-h) + 64px);
  }
}

/* ── Desktop: stack sticky cart bar + AI chat (no overlap) ── */
@media (min-width: 768px) {
  .sticky-cart-bar {
    bottom: 20px;
    right: 20px;
    left: auto;
    max-width: 340px;
    border-radius: 16px;
    border: 1px solid rgba(148, 163, 184, 0.25);
    box-shadow: 0 12px 32px rgba(15, 23, 42, 0.12);
    z-index: 95;
  }

  body.has-sticky-cart .ms-ai-fab {
    bottom: calc(20px + var(--mse-action-bar-h) + 16px);
    right: 20px;
    z-index: 94;
  }

  body.has-sticky-cart .ms-ai-panel {
    bottom: calc(20px + var(--mse-action-bar-h) + 88px);
    right: 20px;
  }

  body.product-detail-public .ms-ai-fab,
  body.rental-cart .ms-ai-fab,
  body.mse-checkout-page .ms-ai-fab {
    bottom: 24px;
  }
  body.product-detail-public .ms-ai-panel,
  body.rental-cart .ms-ai-panel,
  body.mse-checkout-page .ms-ai-panel {
    bottom: 96px;
  }

  body.rental-plp .rm-help-fab {
    bottom: 24px;
    z-index: 93;
  }
}

/* Checkout sticky pay bar */
@media (max-width: 767px) {
  body.has-app-bottom-nav .mse-checkout-sticky {
    bottom: var(--mse-above-nav);
    z-index: 99;
  }
  body.has-app-bottom-nav .mse-checkout-simple {
    padding-bottom: calc(var(--mse-above-action) + 48px) !important;
  }

  /* Services listing bottom CTA */
  body.has-app-bottom-nav .sl-bottom-bar {
    bottom: var(--mse-above-nav);
    z-index: 98;
    left: 12px;
    right: 12px;
    width: auto;
    border-radius: 14px;
    box-shadow: 0 8px 28px rgba(15, 23, 42, 0.12);
  }
  body.has-app-bottom-nav .sl-page {
    padding-bottom: calc(var(--mse-above-action) + 24px);
  }

  /* Service detail sticky Add to Cart */
  body.has-app-bottom-nav .svc-sticky-bar {
    bottom: var(--mse-above-nav);
    z-index: 101;
    left: 12px;
    right: 12px;
    max-width: none;
    margin: 0;
    border-radius: 14px;
    border: 1px solid rgba(148, 163, 184, 0.25);
    box-shadow: 0 8px 28px rgba(15, 23, 42, 0.12);
  }
  body.has-app-bottom-nav .svc-wrap {
    padding-bottom: calc(var(--mse-above-action) + 16px);
  }
  body.has-app-bottom-nav.has-service-scart .scart-footer {
    bottom: var(--mse-above-nav);
    z-index: 101;
  }
  body.has-app-bottom-nav.has-service-scart .scart-wrap {
    padding-bottom: calc(var(--mse-above-action) + 24px);
  }

  body.has-app-bottom-nav .ms-ai-fab {
    bottom: var(--mse-above-action);
  }
}

/* Bottom nav below sticky action bars but above page content */
.app-bottom-nav {
  z-index: 100;
}

/* Compact, readable sticky cart action */
.sticky-cart-bar {
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(148,163,184,.25);
  box-shadow: 0 12px 34px rgba(15,23,42,.16);
}
.sticky-cart-bar-inner {
  width: 100%;
  min-width: 0;
}
.sticky-cart-bar-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  min-height: 48px;
  padding: 10px 18px;
  white-space: nowrap;
  line-height: 1.1;
  border-radius: 14px;
}
.sticky-cart-bar-btn-primary {
  background: linear-gradient(135deg, #ff6a16, #fa4b05);
  box-shadow: 0 6px 16px rgba(250,86,8,.24);
}
@media (max-width: 767px) {
  .sticky-cart-bar {
    left: 12px !important;
    right: 12px !important;
    bottom: calc(var(--mse-above-nav, 82px) + 8px) !important;
    width: auto;
    padding: 8px 10px;
    border-radius: 20px;
  }
  .sticky-cart-bar-inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto auto;
    gap: 8px;
    align-items: center;
  }
  .sticky-cart-bar-info { min-width: 0; }
  .sticky-cart-bar-count {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .sticky-cart-bar-total { font-size: 1.25rem; }
  .sticky-cart-bar-btn {
    min-height: 50px;
    padding: 10px 14px;
    border-radius: 14px;
  }
}
@media (max-width: 420px) {
  .sticky-cart-bar-inner { grid-template-columns: minmax(0, 1fr) auto auto; gap: 6px; }
  .sticky-cart-bar-btn { padding-left: 10px; padding-right: 10px; font-size: .75rem; }
}

/* Final mobile stack: support left, AI right, action bar below both. */
@media (max-width: 767px) {
  body.has-app-bottom-nav .mse-global-help {
    left: 12px !important;
    right: auto !important;
    bottom: calc(var(--mse-above-action, 166px) + 8px) !important;
    max-width: calc(50vw - 20px);
    z-index: 450 !important;
    white-space: nowrap;
  }
  body.has-app-bottom-nav .ms-ai-fab {
    right: 12px !important;
    bottom: calc(var(--mse-above-action, 166px) + 8px) !important;
    z-index: 451 !important;
  }
  body.has-app-bottom-nav .ms-ai-panel {
    right: 12px;
    left: 12px;
    bottom: calc(var(--mse-above-action, 166px) + 64px) !important;
    z-index: 452 !important;
  }
  body.has-app-bottom-nav .svc-sticky-bar,
  body.has-app-bottom-nav .sl-bottom-bar,
  body.has-app-bottom-nav .rc-mobile-bar {
    max-width: calc(100vw - 24px);
    box-sizing: border-box;
  }
}