/* Responsive Design Improvements */

/* Mobile First Approach - Enhanced */
:root {
  --mobile-padding: 1rem;
  --mobile-margin: 0.75rem;
  --tablet-padding: 1.5rem;
  --tablet-margin: 1rem;
  --desktop-padding: 2rem;
  --desktop-margin: 1.5rem;
  
  /* Touch target sizes */
  --touch-target-min: 44px;
  --touch-target-comfortable: 48px;
  --touch-target-large: 56px;
}

/* Base Mobile Styles (320px and up) */
body {
  font-size: 14px;
  line-height: 1.5;
}

.container-fluid {
  padding-left: var(--mobile-padding);
  padding-right: var(--mobile-padding);
}

/* Enhanced Touch Targets */
.btn {
  min-height: var(--touch-target-min);
  min-width: var(--touch-target-min);
  padding: 0.75rem 1rem;
  touch-action: manipulation;
  user-select: none;
}

.btn-sm {
  min-height: var(--touch-target-min);
  min-width: var(--touch-target-min);
  padding: 0.5rem 0.75rem;
}

.btn-lg {
  min-height: var(--touch-target-comfortable);
  min-width: var(--touch-target-comfortable);
  padding: 1rem 1.5rem;
}

.form-control,
.form-select {
  min-height: var(--touch-target-min);
  padding: 0.75rem;
  font-size: 16px; /* Prevents zoom on iOS */
}

.nav-link {
  min-height: var(--touch-target-comfortable);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  touch-action: manipulation;
}

/* Mobile Navigation Improvements */
@media (max-width: 767.98px) {
  #sidebar {
    position: fixed;
    top: 0;
    left: -280px;
    width: 280px;
    height: 100vh;
    z-index: 1050;
    transition: transform 0.3s ease;
    transform: translateX(0);
    box-shadow: none;
  }
  
  #sidebar.open {
    transform: translateX(280px);
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
  }
  
  #sidebar-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1040;
    display: none;
    backdrop-filter: blur(2px);
  }
  
  #toggleBtn {
    position: fixed;
    top: 1rem;
    left: 1rem;
    z-index: 1060;
    width: var(--touch-target-comfortable);
    height: var(--touch-target-comfortable);
    border-radius: 50%;
    background: var(--button-primary);
    color: white;
    border: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  #toggleBtn:hover,
  #toggleBtn:focus {
    background: var(--button-primary-hover);
    transform: scale(1.05);
  }
  
  .main-content {
    margin-left: 0;
    padding-top: 4rem; /* Account for floating toggle button */
  }
  
  /* Mobile header */
  .mobile-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    background: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    margin-bottom: 1rem;
  }
  
  .mobile-header h1 {
    font-size: 1.25rem;
    margin: 0;
    flex: 1;
    text-align: center;
  }
  
  .mobile-actions {
    display: flex;
    gap: 0.5rem;
  }
  
  .mobile-actions .btn {
    padding: 0.5rem;
    min-width: var(--touch-target-min);
  }
}

/* Improved Card Layouts for Mobile */
@media (max-width: 767.98px) {
  .card {
    margin-bottom: var(--mobile-margin);
    border-radius: 12px;
  }
  
  .card-body {
    padding: var(--mobile-padding);
  }
  
  .card-header {
    padding: var(--mobile-padding);
    font-weight: 600;
  }
  
  /* Stack form elements vertically on mobile */
  .row > .col-md-6 {
    margin-bottom: 1rem;
  }
  
  .input-group {
    flex-direction: column;
  }
  
  .input-group .btn {
    margin-top: 0.5rem;
    border-radius: 0.375rem;
  }
  
  .input-group .form-control:not(:last-child) {
    border-radius: 0.375rem;
    margin-bottom: 0.5rem;
  }
}

/* Tablet Styles (768px to 1023px) */
@media (min-width: 768px) and (max-width: 1023.98px) {
  body {
    font-size: 15px;
  }
  
  .container-fluid {
    padding-left: var(--tablet-padding);
    padding-right: var(--tablet-padding);
  }
  
  #sidebar {
    width: 240px;
  }
  
  #sidebar.collapsed {
    width: 70px;
  }
  
  .main-content {
    margin-left: 240px;
    transition: margin-left 0.3s ease;
  }
  
  .main-content.sidebar-collapsed {
    margin-left: 70px;
  }
  
  .card-body {
    padding: var(--tablet-padding);
  }
  
  /* Tablet grid adjustments */
  .col-md-6 {
    flex: 0 0 50%;
    max-width: 50%;
  }
  
  .col-md-4 {
    flex: 0 0 50%;
    max-width: 50%;
  }
}

/* Desktop Styles (1024px and up) */
@media (min-width: 1024px) {
  body {
    font-size: 16px;
  }
  
  .container-fluid {
    padding-left: var(--desktop-padding);
    padding-right: var(--desktop-padding);
  }
  
  .card-body {
    padding: var(--desktop-padding);
  }
  
  /* Better spacing for larger screens */
  .row {
    margin-left: -var(--desktop-margin);
    margin-right: -var(--desktop-margin);
  }
  
  .row > * {
    padding-left: var(--desktop-margin);
    padding-right: var(--desktop-margin);
  }
}

/* Tool-Specific Responsive Improvements */

/* JSON Formatter */
@media (max-width: 767.98px) {
  .json-formatter .row {
    flex-direction: column;
  }
  
  .json-formatter .col-md-6 {
    flex: none;
    width: 100%;
    margin-bottom: 1rem;
  }
  
  .json-formatter textarea {
    min-height: 200px;
    font-size: 14px;
  }
  
  .json-formatter .btn-group {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
  }
  
  .json-formatter .btn-group .btn {
    flex: 1;
    min-width: 0;
  }
}

/* Image Resizer */
@media (max-width: 767.98px) {
  .image-resizer .controls-row {
    flex-direction: column;
  }
  
  .image-resizer .dimension-inputs {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .image-resizer .dimension-inputs .input-group {
    flex-direction: row;
  }
  
  .image-resizer canvas {
    max-width: 100%;
    height: auto;
  }
  
  .image-resizer .batch-controls {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
  
  .image-resizer .quality-slider {
    margin: 1rem 0;
  }
}

/* Bookmarks */
@media (max-width: 767.98px) {
  .bookmark-item {
    padding: 1rem;
    border-radius: 8px;
  }
  
  .bookmark-item .btn-group {
    flex-direction: column;
    width: 100%;
    gap: 0.25rem;
  }
  
  .bookmark-item .btn {
    justify-content: center;
  }
  
  .bookmark-search {
    margin-bottom: 1rem;
  }
  
  .bookmark-categories {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
  }
  
  .bookmark-categories .badge {
    padding: 0.5rem 0.75rem;
    cursor: pointer;
    min-height: var(--touch-target-min);
    display: flex;
    align-items: center;
  }
}

/* Password Generator */
@media (max-width: 767.98px) {
  .password-output {
    font-size: 14px;
    padding: 1rem;
    word-break: break-all;
  }
  
  .password-strength {
    margin: 1rem 0;
  }
  
  .strength-meter {
    height: 8px;
    border-radius: 4px;
  }
  
  .password-options {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .length-slider {
    width: 100%;
    margin: 1rem 0;
  }
}

/* Color Picker */
@media (max-width: 767.98px) {
  .color-preview {
    height: 120px;
    border-radius: 8px;
    margin-bottom: 1rem;
  }
  
  .color-inputs {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
  
  .color-formats {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
  
  .color-palette {
    grid-template-columns: repeat(auto-fill, minmax(40px, 1fr));
  }
  
  .color-swatch {
    aspect-ratio: 1;
    min-height: var(--touch-target-min);
    border-radius: 6px;
  }
}

/* Prompt Library */
@media (max-width: 767.98px) {
  .prompt-item {
    padding: 1rem;
    margin-bottom: 1rem;
  }
  
  .prompt-item .btn-toolbar {
    flex-direction: column;
    align-items: stretch;
    gap: 0.5rem;
  }
  
  .prompt-item .btn-group {
    justify-content: center;
  }
  
  .prompt-content {
    font-size: 14px;
    line-height: 1.6;
  }
  
  .prompt-tags {
    flex-wrap: wrap;
    gap: 0.25rem;
  }
  
  .prompt-tags .badge {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
  }
}

/* Form Improvements */
@media (max-width: 767.98px) {
  .form-floating {
    margin-bottom: 1rem;
  }
  
  .form-floating label {
    padding-left: 1rem;
  }
  
  .form-check {
    padding-left: 2rem;
    margin-bottom: 0.75rem;
  }
  
  .form-check-input {
    margin-left: -2rem;
    width: 20px;
    height: 20px;
  }
  
  .form-check-label {
    font-size: 14px;
    line-height: 1.4;
  }
}

/* Modal Improvements */
@media (max-width: 767.98px) {
  .modal-dialog {
    margin: 1rem;
    max-width: calc(100vw - 2rem);
  }
  
  .modal-content {
    border-radius: 12px;
  }
  
  .modal-header {
    padding: 1rem;
    flex-wrap: wrap;
  }
  
  .modal-body {
    padding: 1rem;
    max-height: 60vh;
    overflow-y: auto;
  }
  
  .modal-footer {
    padding: 1rem;
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .modal-footer .btn {
    width: 100%;
    justify-content: center;
  }
}

/* Toast Improvements */
@media (max-width: 767.98px) {
  .toast-container {
    position: fixed !important;
    top: auto !important;
    bottom: 1rem !important;
    left: 1rem !important;
    right: 1rem !important;
    width: auto !important;
  }
  
  .toast {
    width: 100%;
    margin-bottom: 0.5rem;
  }
}

/* Loading Overlay Mobile */
@media (max-width: 767.98px) {
  .loading-content {
    padding: 2rem 1rem;
    max-width: 280px;
  }
  
  .loading-spinner {
    width: 50px;
    height: 50px;
  }
  
  .loading-text {
    font-size: 1rem;
  }
  
  .loading-progress {
    width: 200px;
  }
}

/* Accessibility Improvements */
@media (prefers-reduced-motion: reduce) {
  #sidebar,
  .main-content,
  .modal-dialog,
  .toast,
  .btn,
  .card {
    transition: none !important;
    animation: none !important;
  }
}

/* High contrast mode */
@media (prefers-contrast: high) {
  .btn {
    border: 2px solid;
  }
  
  .card {
    border: 2px solid var(--border-color);
  }
  
  .form-control,
  .form-select {
    border: 2px solid var(--border-color);
  }
}

/* Large text support */
@media (max-width: 767.98px) {
  .large-text body {
    font-size: 16px;
  }
  
  .large-text .btn {
    font-size: 16px;
    padding: 1rem 1.25rem;
  }
  
  .large-text .form-control,
  .large-text .form-select {
    font-size: 16px;
    padding: 1rem;
  }
}

/* Landscape orientation fixes */
@media (max-width: 767.98px) and (orientation: landscape) {
  .mobile-header {
    padding: 0.5rem 1rem;
  }
  
  .mobile-header h1 {
    font-size: 1.1rem;
  }
  
  #toggleBtn {
    top: 0.5rem;
    width: 40px;
    height: 40px;
  }
  
  .main-content {
    padding-top: 3rem;
  }
  
  .modal-body {
    max-height: 40vh;
  }
}

/* Print styles */
@media print {
  #sidebar,
  #toggleBtn,
  .mobile-header,
  .btn,
  .loading-overlay,
  .toast-container {
    display: none !important;
  }
  
  .main-content {
    margin-left: 0 !important;
    padding: 0 !important;
  }
  
  .card {
    border: 1px solid #000;
    break-inside: avoid;
    margin-bottom: 1rem;
  }
}

/* Focus improvements for keyboard navigation */
.btn:focus,
.form-control:focus,
.form-select:focus,
.nav-link:focus {
  outline: 2px solid var(--button-primary);
  outline-offset: 2px;
  z-index: 1;
}

/* Skip link for accessibility */
.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: var(--button-primary);
  color: white;
  padding: 8px;
  text-decoration: none;
  border-radius: 0 0 4px 4px;
  z-index: 2000;
}

.skip-link:focus {
  top: 0;
}

/* Touch device improvements */
@media (hover: none) and (pointer: coarse) {
  .btn:hover {
    transform: none;
  }
  
  .card:hover {
    transform: none;
    box-shadow: none;
  }
  
  /* Larger tap targets for touch */
  .nav-link {
    min-height: var(--touch-target-large);
  }
  
  .btn {
    min-height: var(--touch-target-comfortable);
  }
}

/* Safe area support for devices with notches */
@supports (padding: max(0px)) {
  .main-content {
    padding-left: max(var(--mobile-padding), env(safe-area-inset-left));
    padding-right: max(var(--mobile-padding), env(safe-area-inset-right));
  }
  
  #toggleBtn {
    left: max(1rem, env(safe-area-inset-left));
    top: max(1rem, env(safe-area-inset-top));
  }
  
  .toast-container {
    left: max(1rem, env(safe-area-inset-left)) !important;
    right: max(1rem, env(safe-area-inset-right)) !important;
    bottom: max(1rem, env(safe-area-inset-bottom)) !important;
  }
}