@media (max-width: 900px) {
  /* Sidebar Drawer on Mobile */
  .sidebar {
    transform: translateX(-100%);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
  }

  .sidebar.open {
    transform: translateX(0);
  }

  /* Hamburger & Close strictly active only on Mobile view */
  .sidebar-close-btn {
    display: block !important;
    background: transparent;
    border: none;
    font-size: 1.6rem;
    color: var(--text-muted);
    cursor: pointer;
    position: absolute;
    right: 0;
    top: 2px;
  }

  .icon-toggle {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    background: #ffffff;
    border: 1px solid var(--border-ui);
    color: var(--text-main);
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 1.2rem;
    cursor: pointer;
    box-shadow: var(--shadow);
  }

  .sidebar-backdrop.active {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(2px);
    z-index: 99;
  }

  .content-area {
    margin-left: 0;
    padding: 14px 12px;
    max-width: 100vw;
  }

  .top-nav {
    flex-wrap: wrap;
    gap: 12px;
  }

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

  .nav-right {
    display: flex;
    width: 100%;
    justify-content: space-between;
    gap: 8px;
  }

  .clock-chip {
    flex: 1;
    text-align: center;
    font-size: 0.85rem;
    padding: 8px;
  }

  .nav-right .btn {
    flex: 1;
    justify-content: center;
    font-size: 0.85rem;
  }

  /* Metrics & Category Chips */
  .metric-row {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .category-filter-list {
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    gap: 8px;
    padding-bottom: 6px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .category-filter-list::-webkit-scrollbar {
    display: none;
  }

  .filter-chip {
    flex-shrink: 0;
    padding: 6px 14px;
    font-size: 0.82rem;
  }

  /* Station Grid & Card Mobile Overhaul */
  .cards-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .station-card {
    padding: 14px;
  }

  .meter-time {
    font-size: 2.15rem;
    letter-spacing: -0.5px;
    margin: 4px 0;
  }

  .meter-cost {
    font-size: 0.88rem;
    line-height: 1.35;
    word-break: break-word;
  }

  /* Active Card 4-Buttons in Clean 2x2 Grid */
  .station-card.occupied .card-actions,
  .station-card.paused-card .card-actions {
    display: grid !important;
    grid-template-columns: 1fr 1fr !important;
    gap: 8px !important;
    margin-top: 12px !important;
  }

  .station-card .card-actions .btn {
    width: 100% !important;
    padding: 9px 6px !important;
    font-size: 0.82rem !important;
    font-weight: 700;
    justify-content: center;
    border-radius: 8px;
    white-space: nowrap;
  }

  /* Mobile Filter Bar Cleanup (Guaranteed Zero-Overflow) */
  .preset-filter-bar {
    display: flex !important;
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 12px !important;
    padding: 14px !important;
  }

  .smart-dropdown-wrapper {
    display: flex !important;
    flex-direction: column !important;
    align-items: stretch !important;
    width: 100% !important;
    gap: 6px !important;
  }

  .form-select-custom {
    width: 100% !important;
    min-width: 0 !important;
    box-sizing: border-box !important;
  }

  .custom-range-btn {
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .search-input-wrapper {
    width: 100% !important;
    min-width: 0 !important;
    display: flex !important;
    align-items: center !important;
    position: relative !important;
    box-sizing: border-box !important;
  }

  .search-input-wrapper .search-ico {
    position: absolute !important;
    left: 14px !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
    z-index: 5 !important;
    margin: 0 !important;
    padding: 0 !important;
    line-height: 1 !important;
  }

  .form-input-clean {
    width: 100% !important;
    padding: 10px 14px 10px 38px !important;
    box-sizing: border-box !important;
  }

  .reset-btn {
    width: 100% !important;
  }

  .analytics-header-grid {
    grid-template-columns: 1fr;
  }

  .analytics-layout {
    grid-template-columns: 1fr;
  }

  /* Modals Mobile Sizing & Responsive Alignment */
  .modal-dialog {
    width: 95% !important;
    max-width: 95% !important;
    margin: 14px auto !important;
    padding: 16px !important;
    border-radius: 14px;
    max-height: 90vh;
    overflow-y: auto;
  }

  .start-choice-grid {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  /* Receipt Modal Mobile Responsive */
  .modal-receipt-wrap {
    padding: 12px !important;
  }

  .pos-receipt {
    max-width: 100% !important;
    padding: 10px 6px !important;
    font-size: 12px !important;
  }

  .pos-receipt .receipt-header h2 {
    font-size: 16px !important;
  }

  .receipt-item-row {
    font-size: 12px !important;
    gap: 6px;
  }

  .receipt-net-total {
    font-size: 14px !important;
  }

  /* Modal Footer Stack on Mobile */
  .modal-footer {
    display: flex !important;
    flex-direction: column !important;
    gap: 8px !important;
    margin-top: 14px !important;
  }

  .modal-footer .btn {
    width: 100% !important;
    padding: 11px !important;
    font-size: 0.9rem !important;
    justify-content: center !important;
  }
}

@media (max-width: 480px) {
  .meter-time {
    font-size: 1.95rem;
  }

  .card-name {
    font-size: 0.98rem;
  }

  .station-card .card-actions .btn {
    font-size: 0.78rem !important;
    padding: 8px 4px !important;
  }
}

/* Invoice Modal Footer Strict 1-Column Stack on Mobile */
  #invoiceModalFooter {
    display: flex !important;
    flex-direction: column !important;
    gap: 8px !important;
    margin-top: 14px !important;
    width: 100% !important;
  }

  #invoiceModalFooter .btn {
    width: 100% !important;
    height: 44px !important;
    padding: 10px !important;
    font-size: 0.9rem !important;
    justify-content: center !important;
  }