/* Responsive Design for JSON Formatter PWA */

/* Mobile First Approach */

/* Small Devices (up to 576px) */
@media (max-width: 576px) {
  .app-header {
    padding: 0.75rem 0;
  }

  .header-content {
    padding: 0 0.5rem; /* 减少header padding */
  }

  .app-title {
    font-size: 1.25rem;
  }

  .json-icon {
    font-size: 1.5rem;
  }

  .header-controls {
    gap: 0.25rem;
  }

  .btn {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
  }

  .btn-small {
    padding: 0.2rem 0.4rem;
    font-size: 0.7rem;
  }

  .app-main {
    padding: 0.75rem 0.25rem; /* 减少移动端左右padding */
  }

  .section-header h2 {
    font-size: 1.1rem;
  }

  .json-textarea {
    min-height: 200px;
    font-size: 12px;
  }

  .output-container {
    min-height: 200px;
  }

  .empty-state {
    height: 200px;
  }

  .controls-row {
    gap: 1rem;
  }

  .control-group {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
  }

  .control-group label {
    font-size: 0.8rem;
  }

  .select-control, .number-control {
    font-size: 0.8rem;
    padding: 0.4rem;
  }

  .action-buttons {
    flex-direction: column;
    gap: 0.5rem;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .input-controls, .output-controls {
    flex-wrap: wrap;
  }

  .toast {
    min-width: 250px;
    max-width: 300px;
    font-size: 0.8rem;
  }

  .modal-content {
    width: 95%;
    margin: 0.5rem;
  }

  .install-step {
    flex-direction: column;
    gap: 0.5rem;
  }

  .step-icon {
    font-size: 1.5rem;
  }

  .status-bar {
    flex-direction: column;
    gap: 0.25rem;
    padding: 0.5rem 0.75rem;
    font-size: 0.7rem;
  }

  .status-info, .pwa-info {
    flex-direction: column;
    gap: 0.25rem;
    width: 100%;
  }

  .processing-status, .result-stats, .worker-status {
    justify-content: space-between;
  }

  .validation-indicator {
    font-size: 0.7rem;
    padding: 0.2rem 0.4rem;
  }

  .tree-node {
    margin-left: 0.5rem;
  }

  .tree-node::before {
    left: -0.5rem;
  }
}

/* Medium Devices (577px - 768px) */
@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    gap: 0.75rem;
  }

  .app-title {
    font-size: 1.35rem;
  }

  .controls-row {
    flex-direction: column;
    gap: 1rem;
  }

  .control-group {
    flex-direction: row;
    align-items: center;
  }

  .action-buttons {
    flex-direction: row;
    gap: 0.75rem;
  }

  .btn {
    flex: 1;
    min-width: 120px;
  }

  .input-controls, .output-controls {
    gap: 0.25rem;
  }

  .modal-content {
    width: 90%;
    margin: 1rem;
  }

  .status-bar {
    flex-direction: row;
    gap: 1rem;
  }

  .status-info, .pwa-info {
    flex-direction: row;
    gap: 1rem;
  }

  .toast {
    min-width: 280px;
    max-width: 350px;
  }
}

/* Large Devices (769px - 992px) */
@media (max-width: 992px) {
  .app-main {
    /* 保持100%宽度，流式布局 */
  }

  .controls-row {
    gap: 1.5rem;
  }

  .action-buttons {
    flex-wrap: wrap;
    justify-content: center;
  }

  .btn {
    flex: 0 1 auto;
  }
}

/* Extra Large Devices (993px - 1200px) */
@media (max-width: 1200px) {
  .app-main {
    /* 保持100%宽度，流式布局 */
    padding: 1rem 0.5rem; /* 减少左右padding */
  }

  .header-content {
    padding: 0 0.5rem; /* 减少header padding */
  }
}

/* Landscape Orientation */
@media (max-height: 600px) and (orientation: landscape) {
  .app-header {
    padding: 0.5rem 0;
  }

  .header-content {
    padding: 0 0.5rem;
  }

  .app-title {
    font-size: 1.1rem;
  }

  .json-icon {
    font-size: 1.2rem;
  }

  .app-main {
    padding: 0.5rem;
  }

  .section-header {
    margin-bottom: 0.5rem;
  }

  .section-header h2 {
    font-size: 1rem;
  }

  .json-textarea {
    min-height: 150px;
    font-size: 12px;
  }

  .output-container {
    min-height: 150px;
  }

  .empty-state {
    height: 150px;
  }

  .control-panel {
    padding: 0.5rem;
    margin-bottom: 1rem;
  }

  .controls-row {
    gap: 1rem;
    margin-bottom: 0.5rem;
  }

  .action-buttons {
    gap: 0.5rem;
  }

  .btn {
    padding: 0.3rem 0.6rem;
    font-size: 0.75rem;
  }

  .status-bar {
    padding: 0.25rem 0.5rem;
    font-size: 0.7rem;
  }

  .modal-content {
    max-height: 80vh;
  }

  .toast {
    min-width: 200px;
    max-width: 300px;
    font-size: 0.75rem;
  }
}

/* High Resolution Devices */
@media (min-width: 1920px) {
  .app-main {
    /* 移除最大宽度限制，使用流式布局充分利用大屏幕宽度 */
  }

  .app-title {
    font-size: 1.75rem;
  }

  .json-icon {
    font-size: 2rem;
  }

  .json-textarea {
    font-size: 16px;
  }

  .json-output {
    font-size: 16px;
  }

  .tree-view {
    font-size: 16px;
  }

  .btn {
    font-size: 1rem;
    padding: 0.6rem 1.2rem;
  }

  .modal-content {
    max-width: 600px;
  }
}

/* Touch Device Optimizations */
@media (hover: none) and (pointer: coarse) {
  .btn {
    min-height: 44px;
    min-width: 44px;
  }

  .btn-small {
    min-height: 36px;
    min-width: 36px;
  }

  .select-control, .number-control {
    min-height: 40px;
  }

  .json-textarea {
    font-size: 16px; /* Prevents zoom on iOS */
  }

  .tree-toggle {
    min-height: 44px;
    min-width: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .modal-close {
    min-height: 44px;
    min-width: 44px;
  }

  /* Increase tap targets */
  .input-controls, .output-controls {
    gap: 0.75rem;
  }

  .validation-indicator {
    padding: 0.5rem 0.75rem;
    min-height: 36px;
    display: flex;
    align-items: center;
  }
}

/* Dark Mode Optimization */
@media (prefers-color-scheme: dark) {
  :root {
    --shadow-color: rgba(0, 0, 0, 0.5);
  }

  .btn:hover {
    box-shadow: 0 2px 12px var(--shadow-color);
  }

  .modal-content {
    box-shadow: 0 4px 24px var(--shadow-color);
  }

  .toast {
    box-shadow: 0 4px 16px var(--shadow-color);
  }
}

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

  .btn:hover, .btn:active {
    transform: none !important;
  }

  .toast {
    animation: none !important;
  }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  .btn {
    border: 2px solid currentColor;
  }

  .json-textarea, .output-container {
    border: 2px solid var(--border-color);
  }

  .control-panel {
    border: 2px solid var(--border-color);
  }

  .modal-content {
    border: 3px solid var(--text-color);
  }

  .toast {
    border: 2px solid var(--border-color);
  }
}

/* Print Optimization */
@media print {
  .app-header, .control-panel, .status-bar, .btn, .toast, .modal {
    display: none !important;
  }

  .app-main {
    max-width: 100%;
    padding: 0;
    margin: 0;
  }

  .input-section, .output-section {
    margin-bottom: 1rem;
    page-break-inside: avoid;
  }

  .json-textarea, .output-container {
    border: 1px solid #ccc;
    background-color: #fff;
    color: #000;
  }

  .tree-view {
    background-color: #fff;
    color: #000;
  }
}