/* ================================================================
   RESPONSIVE LAYOUT ADJUSTMENTS
   Grid-based responsive design for admin interface
   ================================================================ */

/* ================================================================
   DESKTOP (lg: 992px and up)
   ================================================================ */
@media (min-width: 992px) {
  .sidebar {
    display: block !important;
    position: sticky;
  }
  
  .btn-sidebar-toggle {
    display: none !important;
  }
  
  .container-fluid {
    --bs-gutter-x: 1.5rem;
  }
}

/* ================================================================
   TABLET (md: 768px to 991px)
   ================================================================ */
@media (max-width: 991.98px) {
  .sidebar {
    display: none;
    position: fixed;
    z-index: 1045;
  }
  
  .sidebar.show {
    display: block;
  }
  
  .btn-sidebar-toggle {
    display: inline-flex !important;
  }
  
  .page-head {
    flex-direction: column;
  }
  
  .page-head > div:last-child {
    width: 100%;
    justify-content: flex-start;
  }
  
  .row-cols-md-2 > * {
    flex: 0 0 calc(50% - 0.75rem);
  }
  
  table {
    font-size: 0.9rem;
  }
  
  table th,
  table td {
    padding: 10px 8px;
  }
}

/* ================================================================
   MOBILE (sm: 576px to 767px)
   ================================================================ */
@media (max-width: 767.98px) {
  body {
    font-size: 0.95rem;
  }
  
  .card {
    margin-bottom: 1rem;
    border-radius: 8px;
  }
  
  .card-body {
    padding: 1rem;
  }
  
  .btn {
    padding: 6px 12px;
    font-size: 0.85rem;
  }
  
  .btn-group {
    flex-wrap: wrap;
  }
  
  .btn-group > .btn {
    margin-right: 0.25rem;
    margin-bottom: 0.25rem;
  }
  
  header .container-fluid {
    --bs-gutter-x: 1rem;
  }
  
  header .brand {
    font-size: 0.95rem;
  }
  
  .page-head {
    gap: 0.5rem;
  }
  
  .page-head h1,
  .page-head h2,
  .page-head h3,
  .page-head h4 {
    font-size: 1.25rem;
  }
  
  table {
    font-size: 0.85rem;
  }
  
  table th,
  table td {
    padding: 8px 6px;
  }
  
  table th {
    font-size: 0.75rem;
  }
  
  .input-group {
    gap: 0.25rem;
  }
  
  .input-group-text {
    padding: 0.5rem 0.75rem;
    font-size: 0.9rem;
  }
  
  .form-control,
  .form-select {
    padding: 0.5rem 0.75rem;
    font-size: 0.9rem;
  }
}

/* ================================================================
   SMALL MOBILE (xs: below 576px)
   ================================================================ */
@media (max-width: 575.98px) {
  body {
    font-size: 0.9rem;
    overflow-x: hidden;
  }
  
  .container-fluid,
  [class*="col-"] {
    --bs-gutter-x: 0.75rem;
  }
  
  h1, .h1 { font-size: 1.5rem; }
  h2, .h2 { font-size: 1.25rem; }
  h3, .h3 { font-size: 1.1rem; }
  h4, .h4 { font-size: 1rem; }
  
  .card {
    border-radius: 8px;
    margin-bottom: 0.75rem;
    box-shadow: 0 4px 12px rgba(16, 24, 40, 0.04);
  }
  
  .card-body {
    padding: 0.75rem;
  }
  
  .card-header {
    padding: 0.75rem;
  }
  
  .btn {
    padding: 6px 10px;
    font-size: 0.8rem;
    display: inline-block;
    width: auto;
  }
  
  .btn-block,
  [class*="btn-full"] {
    width: 100%;
    display: block;
  }
  
  .btn-group {
    display: flex;
    gap: 0.25rem;
    flex-wrap: wrap;
    margin-bottom: 0.5rem;
  }
  
  .btn-group > .btn {
    flex: 1;
    min-width: 70px;
  }
  
  /* Header adjustments */
  header .container-fluid {
    --bs-gutter-x: 0.5rem;
    padding: 0.5rem;
  }
  
  header {
    position: sticky;
    top: 0;
    z-index: 100;
  }
  
  header .brand {
    font-size: 0.9rem;
  }
  
  header .brand-subtext {
    display: none;
  }
  
  header .d-flex {
    gap: 0.25rem !important;
  }
  
  header .d-flex > * {
    font-size: 0.85rem;
  }
  
  header .badge {
    display: none;
  }
  
  /* Page head */
  .page-head {
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
  }
  
  .page-head h1,
  .page-head h2,
  .page-head h3,
  .page-head h4 {
    font-size: 1.1rem;
  }
  
  .page-head .page-actions {
    width: 100%;
  }
  
  /* Table adjustments */
  table {
    font-size: 0.75rem;
  }
  
  table thead {
    font-size: 0.7rem;
    max-height: 40px;
  }
  
  table th,
  table td {
    padding: 6px 4px;
    white-space: nowrap;
  }
  
  table .text-end {
    text-align: left !important;
  }
  
  .table-responsive {
    -webkit-overflow-scrolling: touch;
  }
  
  /* Form adjustments */
  .form-group,
  .mb-3 {
    margin-bottom: 0.75rem;
  }
  
  .form-control,
  .form-select,
  .input-group-text {
    padding: 0.5rem 0.6rem;
    font-size: 0.85rem;
    border-radius: 6px;
  }
  
  input[type="search"],
  .form-control::placeholder {
    font-size: 0.85rem;
  }
  
  /* Modal adjustments for mobile */
  .modal-dialog {
    margin: 0.5rem;
  }
  
  .modal-content {
    border-radius: 12px;
  }
  
  .modal-body {
    padding: 1rem 0.75rem;
  }
  
  /* Dropdown adjustments */
  .dropdown-menu {
    min-width: auto;
    border-radius: 8px;
    font-size: 0.9rem;
  }
  
  .dropdown-item {
    padding: 0.5rem 0.75rem;
  }
  
  /* KPI card adjustments */
  .kpi {
    gap: 8px;
  }
  
  .kpi strong {
    font-size: 1rem;
  }
  
  .kpi .icon {
    width: 32px;
    height: 32px;
    min-width: 32px;
  }
  
  /* Badge adjustments */
  .badge {
    font-size: 0.7rem;
    padding: 3px 6px;
  }
  
  /* Alert adjustments */
  .alert {
    padding: 0.75rem;
    margin-bottom: 0.75rem;
    font-size: 0.85rem;
  }
  
  /* Toast adjustments */
  .toast {
    min-width: auto;
    max-width: 90vw;
    font-size: 0.85rem;
  }
  
  .toast-header {
    padding: 0.5rem;
  }
  
  .toast-body {
    padding: 0.5rem;
  }
  
  /* Spacing utilities */
  .p-3 { padding: 0.75rem !important; }
  .p-4 { padding: 1rem !important; }
  .py-3 { padding-top: 0.75rem !important; padding-bottom: 0.75rem !important; }
  .px-3 { padding-left: 0.75rem !important; padding-right: 0.75rem !important; }
  
  .m-3 { margin: 0.75rem !important; }
  .m-4 { margin: 1rem !important; }
  .my-3 { margin-top: 0.75rem !important; margin-bottom: 0.75rem !important; }
  .mx-3 { margin-left: 0.75rem !important; margin-right: 0.75rem !important; }
  
  .gap-3 { gap: 0.75rem !important; }
  .gap-2 { gap: 0.5rem !important; }
  
  /* Hide on mobile if needed */
  .d-none-mobile {
    display: none !important;
  }
  
  /* Touch-friendly sizing */
  button,
  a.btn {
    min-height: 44px;
    min-width: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
}

/* ================================================================
   LANDSCAPE MODE (Mobile/Tablet in Landscape)
   ================================================================ */
@media (max-height: 500px) and (orientation: landscape) {
  header,
  footer {
    padding: 0.25rem 0.5rem;
  }
  
  header .brand-subtext,
  header .badge {
    display: none;
  }
  
  .btn {
    padding: 4px 8px;
    font-size: 0.75rem;
  }
  
  .card {
    margin-bottom: 0.5rem;
  }
  
  .page-head {
    margin-bottom: 0.5rem;
  }
}

/* ================================================================
   HIGH DPI / RETINA SCREENS
   ================================================================ */
@media (min-resolution: 2dppx) {
  body {
    /* Ensure crisp rendering on high DPI */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
  
  img {
    image-rendering: crisp-edges;
  }
}

/* ================================================================
   PRINT STYLES
   ================================================================ */
@media print {
  body {
    background: white;
  }
  
  .sidebar,
  header,
  footer,
  .no-print,
  [class*="hide-print"] {
    display: none !important;
  }
  
  .card {
    box-shadow: none;
    border: 1px solid #999;
    page-break-inside: avoid;
  }
  
  table {
    border-collapse: collapse;
  }
  
  table th,
  table td {
    border: 1px solid #999;
  }
  
  a {
    text-decoration: underline;
  }
  
  .btn,
  button {
    display: none !important;
  }
}