/**
 * Radhira POS — Mobile-first responsive layer
 * Loads after site.css. Does not change business logic.
 */

:root {
  --bp-mobile-max: 767px;
  --bp-tablet-min: 768px;
  --bp-tablet-max: 1023px;
  --bp-laptop-min: 1024px;
  --bp-laptop-max: 1440px;
  --bp-desktop-min: 1441px;
  --touch-min: 44px;
  --space-touch: 8px;
  --font-base-mobile: 16px;
  --font-base-desktop: 15px;
  --fab-size: 56px;
  --filter-sheet-radius: 16px;
  --header-height-mobile: 52px;
}

/* ─── Base typography (mobile-first) ─── */
html {
  font-size: var(--font-base-mobile);
  -webkit-text-size-adjust: 100%;
}

@media (min-width: 1024px) {
  html {
    font-size: var(--font-base-desktop);
  }
}

body {
  overflow-x: hidden;
}

img,
video,
svg {
  max-width: 100%;
  height: auto;
}

/* ─── Touch-friendly controls ─── */
@media (pointer: coarse) {
  .btn,
  button:not(.sidebar-toggle):not(.pos-header-bar__menu-btn),
  .pill-button,
  .nav-menu a,
  .nav-menu summary,
  .filter-chip,
  .hero-actions .btn,
  .pos-header-bar__action-btn {
    min-height: var(--touch-min);
    min-width: var(--touch-min);
    padding-top: var(--space-touch);
    padding-bottom: var(--space-touch);
  }

  input[type="checkbox"],
  input[type="radio"] {
    width: 1.25rem;
    height: 1.25rem;
  }
}

/* Focus visibility (keyboard / a11y) */
:focus-visible {
  outline: 2px solid var(--pink-500);
  outline-offset: 2px;
}

/* ─── Header: compact on mobile ─── */
@media (max-width: 767px) {
  :root {
    --header-height: var(--header-height-mobile);
  }

  .pos-header-bar {
    min-height: var(--header-height-mobile);
    padding: 0 10px;
    padding-top: env(safe-area-inset-top, 0);
  }

  .pos-header-bar__business-name {
    font-size: 0.9rem;
    max-width: min(42vw, 160px);
  }

  .pos-header-bar__user-name {
    display: none;
  }

  .top-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 12px 0;
  }

  .top-bar h1 {
    font-size: 1.25rem;
  }

  .breadcrumbs {
    font-size: 0.75rem;
    flex-wrap: wrap;
  }
}

/* ─── Tablet + mobile: drawer nav (extends site.css 960px to 1023px) ─── */
@media (min-width: 961px) and (max-width: 1023px) {
  .pos-header-bar__menu-btn {
    display: inline-flex;
  }

  .pos-header-bar__datetime {
    display: none;
  }

  .sidebar-backdrop {
    position: fixed;
    inset: 0;
    z-index: 1040;
    background: rgba(10, 6, 18, 0.55);
    backdrop-filter: blur(2px);
  }

  body.sidebar-open .sidebar-backdrop {
    display: block;
  }

  .side-nav {
    position: fixed;
    left: 0;
    top: var(--header-height);
    bottom: var(--status-bar-height);
    width: min(var(--sidebar-expanded-width), 88vw);
    transform: translateX(-105%);
    transition: transform 0.25s ease;
    z-index: 1050;
    overflow-y: auto;
    box-shadow: 8px 0 24px rgba(0, 0, 0, 0.25);
  }

  body.sidebar-open .side-nav {
    transform: translateX(0);
  }

  .side-nav .sidebar-toggle {
    display: none;
  }

  .main-column {
    margin-left: 0 !important;
    width: 100%;
    padding-left: 12px;
    padding-right: 12px;
  }

  body.sidebar-collapsed .main-column {
    margin-left: 0 !important;
  }
}

body.sidebar-open {
  overflow: hidden;
}

/* ─── Page headers & hero actions ─── */
.users-header,
.invoice-page-header,
.page-header-responsive {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

@media (max-width: 767px) {
  .users-header,
  .invoice-page-header {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    width: 100%;
  }

  .hero-actions .btn {
    flex: 1 1 auto;
    justify-content: center;
    text-align: center;
  }
}

/* ─── Dashboard ─── */
.dashboard-wrapper {
  padding: clamp(12px, 3vw, 24px);
}

.metrics-row {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .metrics-row {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .metrics-row {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  }
}

@media (min-width: 1441px) {
  .metrics-row {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  }
}

.content-layout {
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
}

@media (min-width: 1024px) {
  .content-layout {
    grid-template-columns: 1.2fr 1fr;
  }
}

.stats-container {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .stats-container {
    grid-template-columns: repeat(2, 1fr);
  }
}

.metric-box,
.summary-card,
.stat-box {
  min-width: 0;
}

/* Charts resize */
.dashboard-wrapper canvas,
.dashboard-wrapper svg {
  max-width: 100%;
  height: auto;
}

/* ─── Summary / filter rows ─── */
.invoice-summary-container {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .invoice-summary-container {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .invoice-summary-container {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ─── Filter bottom sheet (mobile) ─── */
.filter-sheet-trigger {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  min-height: var(--touch-min);
  margin-bottom: 12px;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: var(--card);
  color: inherit;
  font-weight: 600;
  cursor: pointer;
}

.filter-sheet-backdrop {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

.filter-sheet-backdrop.is-open {
  opacity: 1;
  visibility: visible;
}

.filter-sheet {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2001;
  max-height: 85vh;
  max-height: 85dvh;
  padding: 16px 16px calc(16px + env(safe-area-inset-bottom, 0));
  background: var(--card);
  border-radius: var(--filter-sheet-radius) var(--filter-sheet-radius) 0 0;
  box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.35);
  transform: translateY(100%);
  transition: transform 0.3s ease;
  overflow-y: auto;
}

.filter-sheet.is-open {
  transform: translateY(0);
}

.filter-sheet__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.filter-sheet__title {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0;
}

.filter-sheet__close {
  min-width: var(--touch-min);
  min-height: var(--touch-min);
  border: none;
  background: transparent;
  font-size: 1.5rem;
  cursor: pointer;
  color: inherit;
  border-radius: var(--radius);
}

.filter-sheet__actions {
  display: flex;
  gap: 8px;
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.filter-sheet__actions .btn {
  flex: 1;
  justify-content: center;
}

@media (max-width: 1023px) {
  .invoice-filters-container.is-collapsible-mobile > .filters-form,
  .filters-panel.is-collapsible-mobile > form,
  .filters-panel.is-collapsible-mobile > .filters-form {
    display: none;
  }

  .invoice-filters-container.is-collapsible-mobile .filter-sheet-trigger,
  .filters-panel.is-collapsible-mobile .filter-sheet-trigger {
    display: flex;
  }

  .filters-form .filter-group {
    width: 100%;
  }
}

/* ─── Responsive tables → cards on mobile ─── */
.table-responsive-wrap {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

@media (min-width: 768px) {
  .modern-table.responsive-table-cards {
    min-width: 640px;
  }
}

@media (max-width: 767px) {
  table.modern-table.responsive-table-cards,
  table.returns-table.responsive-table-cards,
  table.fy-table.responsive-table-cards {
    display: block;
    min-width: 0 !important;
    border: none;
  }

  table.responsive-table-cards thead {
    display: none;
  }

  table.responsive-table-cards tbody {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }

  table.responsive-table-cards tbody tr {
    display: block;
    background: var(--card);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius);
    padding: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  }

  :root[data-theme="light"] table.responsive-table-cards tbody tr {
    border-color: rgba(0, 0, 0, 0.08);
  }

  table.responsive-table-cards tbody td {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    padding: 8px 0;
    border: none;
    text-align: right;
    font-size: 0.95rem;
  }

  table.responsive-table-cards tbody td::before {
    content: attr(data-label);
    font-weight: 600;
    color: var(--ink-300);
    text-align: left;
    flex: 0 0 40%;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
  }

  table.responsive-table-cards tbody td.actions,
  table.responsive-table-cards tbody td.actions--right {
    justify-content: flex-end;
    padding-top: 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    margin-top: 4px;
  }

  table.responsive-table-cards tbody td.actions::before,
  table.responsive-table-cards tbody td.actions--right::before {
    display: none;
  }

  table.responsive-table-cards tbody td.actions .btn,
  table.responsive-table-cards tbody td.actions a {
    min-height: var(--touch-min);
  }
}

/* ─── Form grids ─── */
.form-grid,
.invoice-top-section,
.notes-summary-section {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .form-grid--2,
  .invoice-top-section {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .form-grid--3,
  .invoice-top-section.invoice-top-section--3col {
    grid-template-columns: repeat(3, 1fr);
  }

  .form-grid--4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

.field input,
.field select,
.field textarea,
.filter-search-input,
.filter-select {
  font-size: 16px; /* prevents iOS zoom on focus */
}

/* ─── Modals → bottom sheet on mobile ─── */
@media (max-width: 767px) {
  .modal-overlay .modal,
  .modal-dialog,
  .bank-modal-content {
    position: fixed !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    top: auto !important;
    transform: none !important;
    max-width: none !important;
    width: 100% !important;
    max-height: 90vh !important;
    max-height: 90dvh !important;
    margin: 0 !important;
    border-radius: var(--filter-sheet-radius) var(--filter-sheet-radius) 0 0 !important;
    overflow-y: auto;
  }
}

/* ─── Settings grouped cards ─── */
.settings-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .settings-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .settings-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ─── Mobile FAB ─── */
.mobile-fab-wrap {
  display: none;
  position: fixed;
  right: 16px;
  bottom: calc(var(--status-bar-height) + 16px + env(safe-area-inset-bottom, 0));
  z-index: 1100;
}

.mobile-fab-wrap.is-visible {
  display: block;
}

.mobile-fab {
  width: var(--fab-size);
  height: var(--fab-size);
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, var(--pink-700), var(--pink-500));
  color: #fff;
  font-size: 1.75rem;
  line-height: 1;
  box-shadow: 0 4px 16px rgba(245, 0, 135, 0.45);
  cursor: pointer;
  transition: transform 0.2s ease;
}

.mobile-fab:active {
  transform: scale(0.95);
}

.mobile-fab-menu {
  position: absolute;
  right: 0;
  bottom: calc(var(--fab-size) + 12px);
  min-width: 200px;
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.1);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
  overflow: hidden;
}

.mobile-fab-menu.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.mobile-fab-menu a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  min-height: var(--touch-min);
  color: inherit;
  text-decoration: none;
  font-weight: 500;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.mobile-fab-menu a:last-child {
  border-bottom: none;
}

.mobile-fab-menu a:hover,
.mobile-fab-menu a:focus-visible {
  background: rgba(245, 0, 135, 0.12);
}

@media (min-width: 1024px) {
  .mobile-fab-wrap {
    display: none !important;
  }
}

body.pos-billing-layout .mobile-fab-wrap,
body.pos-billing-immersive .mobile-fab-wrap {
  display: none !important;
}

/* ─── Invoice create / billing mobile ─── */
@media (max-width: 767px) {
  .invoice-page-header .hero-actions {
    position: sticky;
    top: var(--header-height);
    z-index: 100;
    background: var(--surface);
    padding: 8px 0;
    margin: 0 -12px;
    padding-left: 12px;
    padding-right: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  }

  .summary-panel,
  .invoice-details-card.invoice-details-section,
  #invoiceDetailsSummary {
    position: sticky;
    bottom: 0;
    z-index: 90;
  }

  .add-items-table-wrapper,
  .scan-barcode-table-wrapper,
  .table-scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .invoice-container {
    padding-bottom: 80px;
  }
}

/* ─── POS billing mobile enhancements ─── */
@media (max-width: 767px) {
  .pos-retail__body {
    grid-template-rows: minmax(0, 1fr) minmax(240px, 45vh) !important;
  }

  .pos-retail__panel {
    position: sticky;
    bottom: 0;
    z-index: 50;
    box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.15);
  }

  .pos-retail__grid-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .pos-retail__btn--primary,
  .pos-retail__pay-btn {
    min-height: var(--touch-min);
    font-size: 1rem;
  }

  #pos-customer-section {
    position: sticky;
    top: 0;
    z-index: 40;
    background: var(--pos-r-bg, #111);
  }
}

/* ─── High contrast preference ─── */
@media (prefers-contrast: more) {
  .btn,
  .modern-table tbody tr,
  .metric-box {
    border: 2px solid currentColor;
  }
}

/* ─── Reduced motion ─── */
@media (prefers-reduced-motion: reduce) {
  .side-nav,
  .filter-sheet,
  .filter-sheet-backdrop,
  .mobile-fab-menu {
    transition: none !important;
  }
}

/* ─── Landscape phone ─── */
@media (max-width: 767px) and (orientation: landscape) {
  .filter-sheet {
    max-height: 95vh;
  }

  .pos-retail__body {
    grid-template-rows: minmax(0, 1fr) minmax(180px, 50vh) !important;
  }
}