/* LOMRA Mail - Responsive Styles */

/* ===================== TABLET (768px - 1024px) ===================== */
@media screen and (max-width: 1024px) {
  :root {
    --sidebar-width: 80px;
  }
  
  /* Sidebar collapse on tablet */
  .sidebar {
    width: var(--sidebar-width);
    overflow: hidden;
  }
  
  .sidebar .nav-text,
  .sidebar .sidebar-header h1,
  .sidebar .compose-btn span,
  .sidebar .storage-info {
    display: none;
  }
  
  .sidebar .nav-link {
    justify-content: center;
    padding: var(--spacing-3);
  }
  
  .sidebar .compose-btn {
    padding: var(--spacing-3);
    width: 48px;
    height: 48px;
  }
  
  .sidebar .logo {
    justify-content: center;
    padding: var(--spacing-4);
  }
  
  /* Email list adjustments */
  .email-list-panel {
    min-width: 280px;
    max-width: 350px;
  }
  
  .email-view-panel {
    flex: 1;
  }
  
  /* Admin sidebar */
  .admin-sidebar {
    width: 80px;
  }
  
  .admin-sidebar .nav-text,
  .admin-sidebar .sidebar-header h2 {
    display: none;
  }
  
  .admin-sidebar .admin-nav-link {
    justify-content: center;
    padding: var(--spacing-3);
  }
  
  /* Settings layout */
  .settings-layout {
    flex-direction: column;
  }
  
  .settings-sidebar {
    width: 100%;
    flex-direction: row;
    overflow-x: auto;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }
  
  .settings-tabs {
    flex-direction: row;
    white-space: nowrap;
  }
}

/* ===================== MOBILE (max-width: 768px) ===================== */
@media screen and (max-width: 768px) {
  /* Hide sidebar by default on mobile */
  .sidebar {
    position: fixed;
    left: -280px;
    top: 0;
    height: 100vh;
    width: 280px;
    z-index: 1000;
    transition: left var(--transition);
    box-shadow: var(--shadow-xl);
  }
  
  .sidebar.open {
    left: 0;
  }
  
  .sidebar.open ~ .sidebar-overlay {
    opacity: 1;
    visibility: visible;
  }
  
  /* Restore sidebar content on mobile when open */
  .sidebar.open .nav-text,
  .sidebar.open .sidebar-header h1,
  .sidebar.open .compose-btn span,
  .sidebar.open .storage-info {
    display: block;
  }
  
  .sidebar.open .nav-link {
    justify-content: flex-start;
    padding: var(--spacing-2) var(--spacing-3);
  }
  
  .sidebar.open .compose-btn {
    padding: var(--spacing-3) var(--spacing-4);
    width: 100%;
    height: auto;
  }
  
  .sidebar-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
  }
  
  /* Mobile hamburger button */
  .mobile-menu-btn {
    display: flex !important;
  }
  
  /* Main content full width */
  .app-main {
    margin-left: 0;
  }
  
  /* Header adjustments */
  .header {
    padding: var(--spacing-3);
  }
  
  .header-title {
    font-size: var(--font-size-lg);
  }
  
  .header-actions {
    gap: var(--spacing-2);
  }
  
  .header-actions .btn-secondary:not(.btn-icon) {
    display: none;
  }
  
  /* Email panels */
  .email-layout {
    flex-direction: column;
  }
  
  .email-list-panel {
    width: 100%;
    max-width: none;
    min-width: auto;
    height: auto;
    max-height: 50vh;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }
  
  .email-list-panel.collapsed {
    max-height: 60px;
    overflow: hidden;
  }
  
  .email-view-panel {
    width: 100%;
    flex: 1;
    min-height: 50vh;
  }
  
  .email-view-panel.fullscreen {
    position: fixed;
    inset: 0;
    z-index: 100;
  }
  
  /* Email item */
  .email-item {
    padding: var(--spacing-3);
  }
  
  .email-item .email-actions {
    display: none;
  }
  
  /* Email view */
  .email-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-3);
  }
  
  .email-header-actions {
    width: 100%;
    justify-content: space-between;
  }
  
  /* Compose modal */
  .modal {
    max-width: 100%;
    height: 100%;
    max-height: 100%;
    border-radius: 0;
    margin: 0;
  }
  
  .modal-overlay {
    padding: 0;
  }
  
  /* Settings */
  .settings-container {
    padding: var(--spacing-4);
  }
  
  .settings-card {
    padding: var(--spacing-4);
  }
  
  .settings-form .form-row {
    flex-direction: column;
  }
  
  .settings-form .form-row > * {
    width: 100%;
  }
  
  /* Admin layout */
  .admin-sidebar {
    position: fixed;
    left: -280px;
    top: 0;
    height: 100vh;
    width: 280px;
    z-index: 1000;
    transition: left var(--transition);
  }
  
  .admin-sidebar.open {
    left: 0;
  }
  
  .admin-sidebar.open .nav-text,
  .admin-sidebar.open .sidebar-header h2 {
    display: block;
  }
  
  .admin-sidebar.open .admin-nav-link {
    justify-content: flex-start;
    padding: var(--spacing-2) var(--spacing-3);
  }
  
  .admin-main {
    margin-left: 0;
  }
  
  .admin-header {
    padding: var(--spacing-3) var(--spacing-4);
  }
  
  /* Stats grid */
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  /* Tables */
  .table-container {
    overflow-x: auto;
  }
  
  .admin-table {
    min-width: 600px;
  }
  
  /* Auth pages */
  .auth-container {
    padding: var(--spacing-4);
  }
  
  .auth-card {
    padding: var(--spacing-5);
    max-width: 100%;
  }
  
  .auth-card h1 {
    font-size: var(--font-size-xl);
  }
  
  /* Toasts */
  .toast-container {
    left: var(--spacing-4);
    right: var(--spacing-4);
    bottom: var(--spacing-4);
  }
  
  .toast {
    min-width: auto;
    max-width: 100%;
  }
}

/* ===================== SMALL MOBILE (max-width: 480px) ===================== */
@media screen and (max-width: 480px) {
  /* Smaller stats grid */
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  /* Compact email item */
  .email-item .avatar {
    width: 36px;
    height: 36px;
    font-size: var(--font-size-xs);
  }
  
  .email-item-content {
    gap: var(--spacing-1);
  }
  
  .email-preview {
    -webkit-line-clamp: 1;
    line-clamp: 1;
  }
  
  /* Compact buttons */
  .btn {
    padding: var(--spacing-2) var(--spacing-3);
    font-size: var(--font-size-xs);
  }
  
  .btn-lg {
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-sm);
  }
  
  /* Compact forms */
  .form-input {
    padding: var(--spacing-2);
    font-size: var(--font-size-sm);
  }
  
  /* Modal footer buttons */
  .modal-footer {
    flex-direction: column;
    gap: var(--spacing-2);
  }
  
  .modal-footer .btn {
    width: 100%;
  }
  
  /* Tab bar scrollable */
  .tabs {
    overflow-x: auto;
    flex-wrap: nowrap;
  }
  
  .tab {
    flex-shrink: 0;
    padding: var(--spacing-2) var(--spacing-3);
  }
  
  /* Dropdown full width */
  .dropdown-menu {
    position: fixed;
    left: var(--spacing-4);
    right: var(--spacing-4);
    top: auto;
    bottom: var(--spacing-4);
    width: auto;
    max-height: 60vh;
    overflow-y: auto;
  }
}

/* ===================== LANDSCAPE MOBILE ===================== */
@media screen and (max-width: 768px) and (orientation: landscape) {
  .email-list-panel {
    max-height: 40vh;
  }
  
  .modal {
    max-height: 100vh;
    overflow-y: auto;
  }
}

/* ===================== HIGH DPI / RETINA ===================== */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  /* Ensure crisp borders on high DPI */
  .card,
  .form-input,
  .btn,
  .modal,
  .dropdown-menu {
    border-width: 0.5px;
  }
}

/* ===================== REDUCED MOTION ===================== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .sidebar,
  .admin-sidebar,
  .modal-overlay,
  .modal,
  .dropdown-menu,
  .toast {
    transition: none;
  }
}

/* ===================== PRINT STYLES ===================== */
@media print {
  .sidebar,
  .admin-sidebar,
  .header,
  .admin-header,
  .modal-overlay,
  .toast-container,
  .btn,
  .dropdown-menu,
  .compose-btn,
  .mobile-menu-btn {
    display: none !important;
  }
  
  .app-main,
  .admin-main {
    margin-left: 0 !important;
  }
  
  .email-view-panel {
    width: 100% !important;
    max-width: none !important;
  }
  
  body {
    background: white;
    color: black;
  }
  
  .card {
    border: 1px solid #ddd;
    box-shadow: none;
  }
}

/* ===================== DARK MODE SPECIFICS ===================== */
@media (prefers-color-scheme: dark) {
  /* Auto dark mode if no theme attribute set */
  :root:not([data-theme]) {
    --bg-primary: #0f0f0f;
    --bg-secondary: #171717;
    --bg-tertiary: #262626;
    --bg-hover: #303030;
    
    --text-primary: #fafafa;
    --text-secondary: #a1a1aa;
    --text-tertiary: #71717a;
    
    --border-color: #27272a;
    --border-hover: #3f3f46;
  }
}

/* ===================== TOUCH DEVICE OPTIMIZATIONS ===================== */
@media (hover: none) and (pointer: coarse) {
  /* Larger touch targets */
  .btn {
    min-height: 44px;
  }
  
  .btn-icon {
    width: 44px;
    height: 44px;
  }
  
  .nav-link {
    min-height: 44px;
  }
  
  .email-item {
    min-height: 72px;
  }
  
  .dropdown-item {
    padding: var(--spacing-3) var(--spacing-4);
  }
  
  .form-input,
  .form-select,
  .form-textarea {
    min-height: 44px;
  }
  
  /* Remove hover states that don't work well on touch */
  .email-item:hover,
  .nav-link:hover,
  .dropdown-item:hover {
    background-color: transparent;
  }
  
  .email-item:active,
  .nav-link:active,
  .dropdown-item:active {
    background-color: var(--bg-hover);
  }
  
  /* Show actions always on touch devices */
  .email-item .email-actions {
    display: flex;
    opacity: 1;
  }
}