/* ============================================================================
   Interactive Features Showcase CSS
   Priority 3: UI styles for interactive demos
   ============================================================================ */

/* ===== Drag & Drop Styles ===== */
[data-draggable="widget"] {
  cursor: move;
  transition: opacity 0.2s ease, box-shadow 0.2s ease;
}

[data-draggable="widget"]:hover {
  box-shadow: 0 4px 12px rgba(0, 217, 255, 0.2);
}

[data-draggable="widget"].drag-over {
  background: rgba(0, 217, 255, 0.05);
  border-left: 3px solid var(--color-cyan);
}

.task-card {
  transition: all 0.2s ease;
  border-left: 3px solid transparent;
}

.task-card.dragging {
  opacity: 0.6;
  transform: scale(0.98);
}

.task-card.drag-target {
  border-left: 3px solid var(--color-cyan);
  background: rgba(0, 217, 255, 0.05);
}

/* ===== Gesture Detection Styles ===== */
[data-gesture="swipe"] {
  touch-action: pan-y;
  user-select: none;
}

[data-gesture="long-press"] {
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
}

.context-menu {
  animation: slideInContext 0.2s ease;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
  min-width: 120px;
}

.context-menu > div {
  color: var(--color-text-primary);
  transition: background 0.15s ease;
}

.context-menu > div:hover {
  background: var(--color-bg-tertiary);
}

@keyframes slideInContext {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* ===== Search Enhancement Styles ===== */
[data-search="input"] {
  transition: all 0.3s ease;
  border: 1px solid var(--color-border-default);
}

[data-search="input"]:focus {
  border-color: var(--color-cyan);
  box-shadow: 0 0 8px rgba(0, 217, 255, 0.3);
  background: var(--color-bg-secondary);
}

/* 下拉選單類（需要 absolute 定位） */
[data-search="results"],
[data-search="suggestions"] {
  position: absolute;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-md);
  max-height: 300px;
  overflow-y: auto;
  z-index: 100;
  animation: slideDown 0.2s ease;
}

.search-result-item,
.suggestion-item,
.history-item {
  transition: all 0.15s ease;
  cursor: pointer;
  border-left: 3px solid transparent;
}

.search-result-item:hover,
.suggestion-item:hover,
.history-item:hover {
  background: var(--color-bg-tertiary);
  border-left-color: var(--color-cyan);
  padding-left: calc(var(--spacing-3) - 3px);
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== Table Interaction Styles ===== */
.data-table thead th {
  user-select: none;
  transition: all 0.2s ease;
  background: linear-gradient(180deg, var(--color-bg-secondary) 0%, var(--color-bg-tertiary) 100%);
  position: relative;
}

.data-table thead th:hover {
  background: linear-gradient(180deg, var(--color-bg-tertiary) 0%, var(--color-bg-secondary) 100%);
  color: var(--color-cyan);
}

.data-table tbody tr {
  transition: all 0.15s ease;
  border-bottom: 1px solid var(--color-border-muted);
}

.data-table tbody tr:hover {
  background: rgba(0, 217, 255, 0.05);
  box-shadow: inset 0 0 8px rgba(0, 217, 255, 0.1);
}

.data-table tbody tr.selected {
  background: rgba(0, 217, 255, 0.1);
  border-left: 3px solid var(--color-cyan);
}

.data-table input[type="checkbox"] {
  cursor: pointer;
  accent-color: var(--color-cyan);
  transition: transform 0.2s ease;
}

.data-table input[type="checkbox"]:hover {
  transform: scale(1.2);
}

.data-table input[type="checkbox"]:checked {
  background: var(--color-cyan);
}

/* 排序指示器 */
.data-table thead th::after {
  content: ' ';
  display: inline-block;
  width: 0;
  height: 0;
  margin-left: 0.5rem;
  transition: opacity 0.2s ease;
  opacity: 0;
}

/* ===== Form Validation Styles ===== */
input.has-error,
textarea.has-error,
select.has-error {
  border-color: #ef4444 !important;
  background: rgba(239, 68, 68, 0.05);
  animation: shakeError 0.4s ease;
}

input.has-success,
textarea.has-success,
select.has-success {
  border-color: var(--color-green) !important;
  background: rgba(34, 197, 94, 0.05);
}

input.has-error:focus,
textarea.has-error:focus,
select.has-error:focus {
  box-shadow: 0 0 12px rgba(239, 68, 68, 0.3);
}

input.has-success:focus,
textarea.has-success:focus,
select.has-success:focus {
  box-shadow: 0 0 12px rgba(34, 197, 94, 0.3);
}

.error-message {
  display: none;
  color: #ef4444;
  font-size: var(--font-size-xs);
  margin-top: 0.25rem;
  animation: slideDown 0.2s ease;
}

.success-message {
  color: var(--color-green);
  font-size: var(--font-size-xs);
  margin-top: 0.25rem;
  animation: slideDown 0.2s ease;
}

@keyframes shakeError {
  0%, 100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-5px);
  }
  75% {
    transform: translateX(5px);
  }
}

/* ===== Keyboard Shortcuts Styles ===== */
[data-shortcuts="help"] {
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-lg);
  padding: var(--spacing-4);
  max-height: 400px;
  overflow-y: auto;
}

.shortcut-item {
  transition: all 0.15s ease;
}

.shortcut-item:hover {
  background: var(--color-bg-secondary);
  padding-left: var(--spacing-2);
}

kbd {
  font-family: 'Monaco', 'Courier New', monospace;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border-default);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  white-space: nowrap;
  display: inline-block;
}

/* ===== Search History Container ===== */
[data-search="history"] {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-2);
  width: 100%;
  min-height: 44px;
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-md);
  box-sizing: border-box;
}

/* ===== Interactive Tab Navigation ===== */
.demo-tabs {
  display: flex;
  gap: var(--spacing-3);
  border-bottom: 2px solid var(--color-border-default);
  margin-bottom: var(--spacing-6);
  overflow-x: auto;
}

.demo-tabs::-webkit-scrollbar {
  height: 4px;
}

.demo-tabs::-webkit-scrollbar-thumb {
  background: var(--color-border-default);
  border-radius: 2px;
}

.tab-button {
  padding: var(--spacing-3) var(--spacing-4);
  border: none;
  background: transparent;
  cursor: pointer;
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-semibold);
  position: relative;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.tab-button:hover {
  color: var(--color-text-primary);
}

.tab-button.active {
  color: var(--color-cyan);
}

.tab-button.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-cyan);
  animation: expandWidth 0.3s ease;
}

@keyframes expandWidth {
  from {
    width: 0;
    left: 50%;
  }
  to {
    width: 100%;
    left: 0;
  }
}

/* ===== Showcase Section Styles ===== */
.showcase-section {
  background: linear-gradient(135deg, rgba(0, 217, 255, 0.05) 0%, rgba(168, 85, 247, 0.05) 100%);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-lg);
  padding: var(--spacing-8);
  margin-bottom: var(--spacing-8);
  animation: fadeInUp 0.4s ease;
  overflow: visible;
}

.showcase-section h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-4);
  color: var(--color-cyan);
}

.showcase-demo-area {
  background: var(--color-bg-secondary);
  border: 1px dashed var(--color-border-default);
  border-radius: var(--radius-md);
  padding: var(--spacing-6);
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-6);
}

.demo-control-group {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-6);
}

.demo-control-item {
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-md);
  padding: var(--spacing-4);
}

.demo-control-item label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-2);
  color: var(--color-text-secondary);
}

.demo-control-item input,
.demo-control-item select {
  width: 100%;
  padding: var(--spacing-2) var(--spacing-3);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
}

/* ===== Status Indicators ===== */
.interaction-status {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-2) var(--spacing-3);
  background: rgba(0, 217, 255, 0.1);
  border: 1px solid var(--color-cyan);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  color: var(--color-cyan);
}

.interaction-status.success {
  background: rgba(34, 197, 94, 0.1);
  border-color: var(--color-green);
  color: var(--color-green);
}

.interaction-status.error {
  background: rgba(239, 68, 68, 0.1);
  border-color: #ef4444;
  color: #ef4444;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
  .demo-tabs {
    flex-wrap: wrap;
  }

  .tab-button {
    padding: var(--spacing-2) var(--spacing-3);
    font-size: var(--font-size-sm);
  }

  .demo-control-group {
    grid-template-columns: 1fr;
  }

  .showcase-section {
    padding: var(--spacing-4);
  }

  .showcase-demo-area {
    min-height: 150px;
  }
}

@media (max-width: 480px) {
  [data-search="results"],
  [data-search="suggestions"],
  [data-search="history"] {
    left: 0 !important;
    right: 0 !important;
  }

  .demo-tabs {
    gap: var(--spacing-2);
  }

  .tab-button {
    padding: var(--spacing-2);
    font-size: var(--font-size-xs);
  }
}