/* =====================================================================
   ABCOTRONICS ERP - COMPLETE MOBILE FIX
   Single, clean mobile stylesheet that actually works
   Replace your 3 mobile CSS files with this ONE file
   ===================================================================== */

/* =====================================================================
   1. BASE SETUP - Critical foundation
   ===================================================================== */

/* Ensure proper box model everywhere */
*, *::before, *::after {
  box-sizing: border-box;
}

/* Prevent horizontal scroll at root level */
html {
  overflow-x: hidden;
  width: 100%;
  -webkit-text-size-adjust: 100%;
}

body {
  overflow-x: hidden;
  width: 100%;
  margin: 0;
  padding: 0;
}

/* =====================================================================
   2. MOBILE-ONLY STYLES (1024px and below)
   ===================================================================== */

@media (max-width: 1024px) {
  
  /* Root container setup */
  #root {
    width: 100%;
    min-height: 100vh;
  }
  
  /* ===== HEADER ===== */
  header {
    position: sticky;
    top: 0;
    z-index: 100;
    width: 100%;
    height: 56px;
    padding: 8px 12px;
    background: white;
    border-bottom: 1px solid #e5e7eb;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
  }
  
  .dark header {
    background: #1f2937;
    border-bottom-color: #374151;
  }
  
  header .flex {
    gap: 8px;
  }
  
  /* Make hamburger menu prominent */
  header button[aria-label*="menu"],
  header button[aria-label*="Menu"] {
    min-width: 44px;
    min-height: 44px;
    padding: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  /* ===== SIDEBAR ===== */
  aside {
    position: fixed;
    top: 0;
    left: -280px; /* Start hidden */
    width: 280px;
    max-width: 85vw;
    height: 100vh;
    z-index: 200;
    transition: left 0.3s ease;
    overflow-y: auto;
    background: white;
    box-shadow: 4px 0 12px rgba(0, 0, 0, 0.15);
  }
  
  .dark aside {
    background: #1f2937;
  }
  
  /* Sidebar open state */
  aside.sidebar-open,
  aside:not([style*="display: none"]) {
    left: 0;
  }
  
  /* Overlay when sidebar is open */
  body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.5);
    z-index: 199;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
  }
  
  body.sidebar-open::before {
    opacity: 1;
    pointer-events: all;
  }
  
  /* Sidebar navigation items */
  aside nav button,
  aside nav a {
    width: 100%;
    min-height: 52px;
    padding: 14px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 16px;
    text-align: left;
    border: none;
    background: transparent;
    transition: background 0.15s ease;
  }
  
  aside nav button:hover,
  aside nav a:hover {
    background: rgba(0, 0, 0, 0.05);
  }
  
  .dark aside nav button:hover,
  .dark aside nav a:hover {
    background: rgba(255, 255, 255, 0.05);
  }
  
  /* ===== MAIN CONTENT ===== */
  main {
    width: 100%;
    min-height: calc(100vh - 56px);
    padding: 16px;
    overflow-x: hidden;
  }
  
  /* Ensure all content fits */
  main > * {
    max-width: 100%;
  }
  
  /* ===== FORMS ===== */
  
  /* All inputs should be touch-friendly */
  input[type="text"],
  input[type="email"],
  input[type="password"],
  input[type="number"],
  input[type="tel"],
  input[type="date"],
  input[type="time"],
  input[type="datetime-local"],
  input[type="search"],
  input[type="url"],
  textarea,
  select {
    width: 100%;
    min-height: 48px;
    padding: 12px 16px;
    font-size: 16px; /* Prevents iOS zoom */
    border: 1px solid #d1d5db;
    border-radius: 8px;
    background: white;
    -webkit-appearance: none;
    appearance: none;
  }
  
  .dark input,
  .dark textarea,
  .dark select {
    background: #374151;
    border-color: #4b5563;
    color: #f9fafb;
  }
  
  /* Focus states */
  input:focus,
  textarea:focus,
  select:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
  }
  
  /* Labels */
  label {
    display: block;
    margin-bottom: 6px;
    font-size: 14px;
    font-weight: 500;
    color: #374151;
  }
  
  .dark label {
    color: #e5e7eb;
  }
  
  /* Select dropdown arrow */
  select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23374151' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 12px;
    padding-right: 40px;
  }
  
  /* Textareas */
  textarea {
    min-height: 120px;
    resize: vertical;
  }
  
  /* Checkboxes and radios */
  input[type="checkbox"],
  input[type="radio"] {
    width: 20px;
    height: 20px;
    margin-right: 8px;
  }
  
  /* Form grids become single column */
  form .grid {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }
  
  /* ===== BUTTONS ===== */
  
  button,
  .btn,
  a[role="button"] {
    min-height: 48px;
    padding: 12px 20px;
    font-size: 16px;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.15s ease;
    cursor: pointer;
  }
  
  /* Touch feedback */
  button:active,
  .btn:active {
    transform: scale(0.97);
  }
  
  /* Button groups stack vertically */
  .flex:has(> button) {
    flex-direction: column;
    gap: 10px;
  }
  
  .flex:has(> button) > button {
    width: 100%;
  }
  
  /* Exception: horizontal button groups */
  .btn-group .flex,
  nav .flex:has(> button) {
    flex-direction: row;
  }
  
  /* ===== MODALS ===== */
  
  /* Modal backdrop */
  [role="dialog"],
  .modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 300;
    overflow: hidden;
  }
  
  /* Modal content wrapper */
  [role="dialog"] > div,
  .modal > div {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    background: white;
  }
  
  .dark [role="dialog"] > div,
  .dark .modal > div {
    background: #1f2937;
  }
  
  /* Modal header - sticky at top */
  .modal-header,
  [role="dialog"] > div > div:first-child {
    position: sticky;
    top: 0;
    z-index: 10;
    padding: 16px;
    border-bottom: 1px solid #e5e7eb;
    background: white;
    flex-shrink: 0;
  }
  
  .dark .modal-header {
    background: #1f2937;
    border-bottom-color: #374151;
  }
  
  /* Modal body - scrollable */
  .modal-body,
  [role="dialog"] form {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: 16px;
  }
  
  /* Modal footer - sticky at bottom */
  .modal-footer,
  [role="dialog"] > div > div:last-child:has(button) {
    position: sticky;
    bottom: 0;
    z-index: 10;
    padding: 16px;
    border-top: 1px solid #e5e7eb;
    background: white;
    flex-shrink: 0;
  }
  
  .dark .modal-footer {
    background: #1f2937;
    border-top-color: #374151;
  }
  
  /* Modal buttons stack vertically */
  .modal-footer .flex {
    flex-direction: column;
    gap: 10px;
  }
  
  .modal-footer button {
    width: 100%;
  }
  
  /* ===== TABLES TO CARDS ===== */
  
  /* Hide tables on mobile */
  table {
    display: none;
  }
  
  /* Show mobile card replacements */
  .mobile-cards {
    display: block;
  }
  
  .mobile-card {
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 12px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  }
  
  .dark .mobile-card {
    background: #1f2937;
    border-color: #374151;
  }
  
  .mobile-card:active {
    transform: scale(0.98);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
  }
  
  /* ===== GRIDS ===== */
  
  .grid {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }
  
  /* Exception: stats can be 2 columns */
  .grid.stats,
  .grid.metrics {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  
  /* ===== CARDS ===== */
  
  .card,
  .bg-white.rounded-lg {
    padding: 16px;
    margin-bottom: 12px;
    border-radius: 12px;
    width: 100%;
  }
  
  /* ===== TYPOGRAPHY ===== */
  
  h1 {
    font-size: 24px;
    margin-bottom: 12px;
  }
  
  h2 {
    font-size: 20px;
    margin-bottom: 10px;
  }
  
  h3 {
    font-size: 18px;
    margin-bottom: 8px;
  }
  
  h4, h5, h6 {
    font-size: 16px;
    margin-bottom: 8px;
  }
  
  /* Prevent text overflow */
  p, span, div, h1, h2, h3, h4, h5, h6 {
    word-wrap: break-word;
    overflow-wrap: break-word;
  }
  
  /* ===== SPACING ===== */
  
  /* Reduce excessive Tailwind padding */
  .p-6, .px-6, .py-6 {
    padding: 16px;
  }
  
  .p-8, .px-8, .py-8 {
    padding: 20px;
  }
  
  /* ===== NAVIGATION TABS ===== */
  
  .nav-tabs {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 8px;
  }
  
  .nav-tabs::-webkit-scrollbar {
    display: none;
  }
  
  .nav-tabs button {
    flex-shrink: 0;
    white-space: nowrap;
    min-width: max-content;
  }
  
  /* ===== DROPDOWNS ===== */
  
  .dropdown-menu {
    position: fixed;
    left: 16px;
    right: 16px;
    width: auto;
    max-height: 60vh;
    overflow-y: auto;
    z-index: 250;
  }
  
  /* ===== LOGIN PAGE ===== */
  
  body.login-page header {
    display: none;
  }
  
  body.login-page #root {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
  }
  
  .login-container {
    width: 100%;
    max-width: 400px;
  }
  
  /* ===== SCROLLBARS ===== */
  
  ::-webkit-scrollbar {
    width: 8px;
    height: 8px;
  }
  
  ::-webkit-scrollbar-track {
    background: #f1f5f9;
    border-radius: 4px;
  }
  
  ::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
  }
  
  ::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
  }
  
  .dark ::-webkit-scrollbar-track {
    background: #374151;
  }
  
  .dark ::-webkit-scrollbar-thumb {
    background: #4b5563;
  }
  
  .dark ::-webkit-scrollbar-thumb:hover {
    background: #6b7280;
  }
  
  /* ===== UTILITIES ===== */
  
  /* All images should be responsive */
  img {
    max-width: 100%;
    height: auto;
  }
  
  /* Touch feedback for interactive elements */
  button, a, input, select {
    -webkit-tap-highlight-color: rgba(59, 130, 246, 0.3);
  }
  
  /* Prevent zoom on input focus (iOS) */
  @supports (-webkit-touch-callout: none) {
    input, select, textarea {
      font-size: 16px;
    }
  }
}

/* =====================================================================
   3. SMALL SCREENS (640px and below)
   ===================================================================== */

@media (max-width: 640px) {
  
  main {
    padding: 12px;
  }
  
  .card,
  .mobile-card {
    padding: 12px;
  }
  
  h1 {
    font-size: 20px;
  }
  
  h2 {
    font-size: 18px;
  }
  
  h3 {
    font-size: 16px;
  }
  
  /* Stats grid to single column */
  .grid.stats,
  .grid.metrics {
    grid-template-columns: 1fr;
  }
  
  button,
  .btn {
    min-height: 44px;
    padding: 10px 16px;
    font-size: 15px;
  }
  
  input,
  textarea,
  select {
    min-height: 44px;
    padding: 10px 14px;
  }
}

/* =====================================================================
   4. VERY SMALL SCREENS (400px and below)
   ===================================================================== */

@media (max-width: 400px) {
  
  header {
    padding: 6px 8px;
  }
  
  main {
    padding: 8px;
  }
  
  .card,
  .mobile-card {
    padding: 10px;
  }
  
  h1 {
    font-size: 18px;
  }
  
  h2 {
    font-size: 16px;
  }
}

/* =====================================================================
   5. DESKTOP (1025px and above) - Keep desktop layout
   ===================================================================== */

@media (min-width: 1025px) {
  
  /* Hide mobile-specific elements */
  .mobile-only {
    display: none;
  }
  
  /* Show desktop tables */
  table {
    display: table;
  }
  
  .mobile-cards {
    display: none;
  }
  
  /* Sidebar is always visible */
  aside {
    position: relative;
    left: 0;
  }
  
  /* No overlay needed */
  body::before {
    display: none;
  }
}

/* =====================================================================
   6. PRINT STYLES
   ===================================================================== */

@media print {
  
  header,
  aside,
  .sidebar,
  button:not([type="submit"]),
  .no-print {
    display: none;
  }
  
  main {
    width: 100%;
    max-width: 100%;
    padding: 0;
  }
  
  .card {
    box-shadow: none;
    border: 1px solid #000;
  }
}