/* ===========================================
   Personal Finance Dashboard - Responsive Design
   Mobile-first responsive breakpoints and optimizations
   =========================================== */

   /* ===========================================
   Mobile Scroll (767px and below)
   =========================================== */ 

   /* Preventing horizontal scrolling */
html, body {
    overflow-x: hidden;
    max-width: 100vw;
}

* {
    max-width: 100%;
    box-sizing: border-box;
}

/* Fixes for tables */
.table-container {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    width: 100%;
}

.transactions-table {
    min-width: 100%;
    width: auto;
}

/* Fixes for modals */
.modal-content {
    max-width: calc(100vw - 2rem);
    margin: 1rem;
}

/* Corrections for forms */
.form-group input,
.form-group select,
.form-group textarea {
    max-width: 100%;
    min-width: 0;
}

/* ===========================================
   Tablet Styles (768px - 1023px)
   =========================================== */

@media (max-width: 1023px) {
  .main {
    padding: var(--spacing-lg);
  }

  .dashboard-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }

  .balance-card {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-lg);
  }

  .balance-amount {
    font-size: 3rem;
  }
}

/* ===========================================
   Mobile Styles (767px and below)
   =========================================== */

@media (max-width: 767px) {

  /* Navigation */
  .nav {
    flex-direction: column;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
  }

  .nav-menu {
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
  }

  .nav-link {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
  }

  /* Main content */
  .main {
    padding: var(--spacing-md);
    margin-top: var(--spacing-md);
  }

  /* Hero section */
  .balance-card {
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
  }

  .balance-amount {
    font-size: 2.5rem;
  }

  .trend-indicator {
    font-size: 1rem;
    padding: var(--spacing-xs) var(--spacing-sm);
  }

  /* Stats section */
  .stats-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .stat-card {
    padding: var(--spacing-md);
    flex-direction: row;
    text-align: left;
  }

  .stat-icon {
    font-size: 2rem;
    width: 48px;
    height: 48px;
  }

  .stat-amount {
    font-size: 1.5rem;
  }

  /* Actions section */
  .actions-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }

  .action-btn {
    width: 100%;
    padding: var(--spacing-lg);
    font-size: 1rem;
  }

  /* Dashboard grid */
  .dashboard-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  /* Categories section */
  .categories-container {
    gap: var(--spacing-sm);
  }

  .category-card {
    padding: var(--spacing-md);
  }

  .category-icon {
    width: 40px;
    height: 40px;
    font-size: 1.25rem;
  }

  /* Charts section */
  .chart-container {
    height: 250px;
  }

  /* Recent transactions */
  .transaction-item {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
  }

  .transaction-details {
    width: 100%;
  }

  .transaction-amount {
    align-self: flex-end;
    font-size: 1.125rem;
  }

  .view-all-link {
    text-align: center;
    width: 100%;
    padding: var(--spacing-md);
    background-color: var(--color-light-green);
    border-radius: var(--radius-lg);
    margin-top: var(--spacing-md);
  }
}

/* ===========================================
   Transactions Page Mobile Styles
   =========================================== */

@media (max-width: 767px) {

  /* Page header */
  .page-header {
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
  }

  .page-title {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-xs);
  }

  .page-actions {
    width: 100%;
  }

  .page-actions .btn {
    width: 100%;
  }

  /* Filters section */
  .filters-container {
    flex-direction: column;
    gap: var(--spacing-md);
  }

  .search-box {
    width: 100%;
  }

  .filter-controls {
    flex-direction: column;
    gap: var(--spacing-sm);
    width: 100%;
  }

  .filter-controls select,
  .filter-controls button {
    width: 100%;
  }

  /* Summary cards */
  .summary-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }

  .summary-card {
    padding: var(--spacing-md);
    text-align: center;
  }

  .summary-icon {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
  }

  .summary-value {
    font-size: 1.25rem;
  }

  /* Table controls */
  .table-controls {
    flex-direction: column;
    gap: var(--spacing-md);
    align-items: stretch;
  }
  
  .table-actions {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .table-actions select,
  .table-actions button {
    width: 100%;
  }

  /* Transactions table */
  .table-container {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .transactions-table {
    min-width: 600px;
    font-size: 0.875rem;
  }

  .transactions-table th,
  .transactions-table td {
    padding: var(--spacing-sm);
  }

  /* Hide some columns on very small screens */
  @media (max-width: 480px) {

    .transactions-table .category-cell,
    .transactions-table .type-cell {
      display: none;
    }

    .transactions-table th:nth-child(3),
    .transactions-table th:nth-child(4) {
      display: none;
    }
  }

  /* Mobile-friendly transaction cards alternative */
  .transaction-cards {
    display: none;
  }

  @media (max-width: 640px) {
    .table-container .transactions-table {
      display: none;
    }

    .transaction-cards {
      display: block;
    }

    .transaction-card {
      background-color: var(--color-white);
      border: 1px solid var(--color-gray-200);
      border-radius: var(--radius-lg);
      padding: var(--spacing-md);
      margin-bottom: var(--spacing-md);
    }

    .transaction-card-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: var(--spacing-sm);
    }

    .transaction-card-amount {
      font-size: 1.125rem;
      font-weight: var(--font-weight-bold);
    }

    .transaction-card-details {
      display: flex;
      flex-direction: column;
      gap: var(--spacing-xs);
      color: var(--color-gray-600);
      font-size: 0.875rem;
    }
  }

  /* Pagination */
  .pagination {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  .pagination-btn {
    width: 100%;
    padding: var(--spacing-md);
  }
}

/* ===========================================
   Form and Modal Mobile Styles
   =========================================== */

@media (max-width: 767px) {
  .modal-content {
    width: 95vw;
    max-width: none;
    margin: var(--spacing-md);
  }

  .modal-header {
    padding: var(--spacing-lg) var(--spacing-md);
  }

  .transaction-form,
  .filter-form {
    padding: var(--spacing-md);
  }

  .form-group label {
    font-size: 0.8125rem;
  }

  .form-group input,
  .form-group select,
  .form-group textarea {
    padding: var(--spacing-md);
    font-size: 16px;
    /* Prevent zoom on iOS */
  }

  .form-actions {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  .form-actions .btn {
    width: 100%;
    padding: var(--spacing-lg);
  }
}

/* ===========================================
   Component Mobile Styles
   =========================================== */

@media (max-width: 767px) {

  /* Buttons */
  .btn.small {
    padding: var(--spacing-sm);
    font-size: 0.75rem;
  }

  /* Category cards */
  .category-card {
    flex-direction: row;
    align-items: center;
  }

  .category-info {
    flex-direction: row;
    align-items: center;
    text-align: left;
  }

  .category-details {
    flex: 1;
  }

  .category-amount {
    font-size: 1rem;
    font-weight: var(--font-weight-bold);
  }

  /* Budget progress bars */
  .budget-progress {
    width: 100%;
    margin-top: var(--spacing-xs);
  }

  /* Notifications */
  .notification {
    top: var(--spacing-md);
    right: var(--spacing-md);
    left: var(--spacing-md);
    max-width: none;
  }

  /* Empty states */
  .empty-state {
    padding: var(--spacing-xl);
  }

  .empty-state p {
    font-size: 1rem;
  }

  .empty-chart-state {
    height: 200px;
    padding: var(--spacing-lg);
  }

  /* Loading states */
  .loading-skeleton {
    height: 40px;
    margin-bottom: var(--spacing-md);
  }
}

/* ===========================================
   Large Mobile (480px - 640px)
   =========================================== */

@media (max-width: 640px) and (min-width: 481px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .summary-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .transactions-table {
    min-width: 500px;
  }
}

/* ===========================================
   Small Mobile (480px and below)
   =========================================== */

@media (max-width: 480px) {
  .nav-title {
    font-size: 1.5rem;
  }

  .balance-amount {
    font-size: 2rem;
  }

  .stat-amount {
    font-size: 1.25rem;
  }

  .stats-grid,
  .summary-grid {
    grid-template-columns: 1fr;
  }

  .category-card {
    padding: var(--spacing-sm);
  }

  .transaction-item {
    padding: var(--spacing-sm);
  }

  .chart-container {
    height: 200px;
  }

  .page-title {
    font-size: 1.5rem;
  }
}

/* ===========================================
   Touch and Gesture Optimizations
   =========================================== */

@media (hover: none) and (pointer: coarse) {

  /* Touch-friendly sizing */
  .btn {
    min-height: 44px;
    padding: var(--spacing-md) var(--spacing-lg);
  }

  .nav-link {
    min-height: 44px;
    padding: var(--spacing-md);
  }

  .modal-close {
    width: 44px;
    height: 44px;
    font-size: 1.25rem;
  }

  .notification-close {
    width: 32px;
    height: 32px;
  }

  /* Remove hover effects on touch devices */
  .category-card:hover,
  .transaction-item:hover,
  .stat-card:hover {
    transform: none;
    box-shadow: var(--shadow-md);
  }

  .btn:hover {
    transform: none;
  }

  /* Improve tap targets */
  .sortable {
    min-height: 44px;
    padding: var(--spacing-md);
  }

  .pagination-btn {
    min-height: 44px;
  }
}

/* ===========================================
   Dark Mode Support (System Preference)
   =========================================== */

@media (prefers-color-scheme: dark) {
  :root {
    --color-gray-50: #111827;
    --color-gray-100: #1f2937;
    --color-gray-200: #374151;
    --color-white: #1f2937;
    --color-gray-900: #f9fafb;
  }

  .header {
    background: linear-gradient(135deg, var(--color-black) 0%, var(--color-dark-green) 100%);
  }

  .modal-overlay {
    background-color: rgba(0, 0, 0, 0.8);
  }
}

/* ===========================================
   Reduced Motion Support
   =========================================== */

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .modal.active .modal-content {
    animation: none;
  }

  .notification {
    animation: none;
  }

  .loading-skeleton {
    animation: none;
    background: var(--color-gray-200);
  }
}

/* ===========================================
   High Contrast Mode
   =========================================== */

@media (prefers-contrast: more) {
  :root {
    --color-neon-green: #00ff00;
    --color-dark-green: #004d00;
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
  }

  .btn.primary {
    background: var(--color-neon-green);
    color: var(--color-black);
    border: 2px solid var(--color-black);
  }

  .category-card,
  .transaction-item,
  .stat-card {
    border: 2px solid var(--color-gray-400);
  }
}

/* ===========================================
   Print Styles
   =========================================== */

@media print {
  * {
    background: white !important;
    color: black !important;
    box-shadow: none !important;
  }

  .header,
  .modal,
  .notification,
  .btn,
  .actions-section {
    display: none !important;
  }

  .main {
    max-width: none;
    margin: 0;
    padding: 0;
  }

  .balance-card {
    border: 2px solid black;
    page-break-inside: avoid;
  }

  .transactions-table {
    border-collapse: collapse;
    width: 100%;
  }

  .transactions-table th,
  .transactions-table td {
    border: 1px solid black;
    padding: 8px;
  }

  .page-break {
    page-break-before: always;
  }
}