/* NEO Regex Builder - Specific Styles */

/* =========================
   Builder Header
   ========================= */
.builder-header {
  padding: 8rem 0 4rem;
  background: linear-gradient(135deg, 
    rgba(139, 92, 246, 0.05) 0%, 
    rgba(99, 102, 241, 0.05) 50%, 
    rgba(245, 158, 11, 0.05) 100%);
  border-bottom: 1px solid var(--color-gray-200);
}

.header-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.header-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: rgba(139, 92, 246, 0.1);
  color: #7c3aed;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--space-4);
  border: 1px solid rgba(139, 92, 246, 0.2);
}

.header-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: var(--space-4);
}

@media (min-width: 640px) {
  .header-title {
    font-size: 3rem;
  }
}

.header-subtitle {
  font-size: 1.125rem;
  color: var(--color-gray-600);
  line-height: 1.6;
  margin-bottom: var(--space-6);
}

.help-banner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  background: rgba(245, 158, 11, 0.1);
  color: var(--color-accent-700);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-lg);
  font-size: 0.875rem;
  font-weight: 500;
  border: 1px solid rgba(245, 158, 11, 0.2);
}

.help-banner i {
  color: var(--color-accent-500);
}

/* =========================
   Builder Workspace
   ========================= */
.builder-main {
  padding: var(--space-4) 0 0;
  min-height: 80vh;
  background: var(--color-gray-50);
}

.container-fluid {
  max-width: none;
  padding: 0;
}

.builder-workspace {
  display: grid;
  grid-template-columns: 300px 1fr 350px;
  height: calc(100vh - 10rem);
  background: white;
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

@media (max-width: 1023px) {
  .builder-workspace {
    grid-template-columns: 1fr;
    height: auto;
    min-height: 80vh;
  }
}

/* =========================
   Component Palette
   ========================= */
.component-palette {
  background: var(--color-gray-50);
  border-right: 1px solid var(--color-gray-200);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.palette-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-4) var(--space-4) var(--space-3);
  border-bottom: 1px solid var(--color-gray-200);
  background: white;
}

.palette-title {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-gray-800);
}

.palette-title i {
  color: #8b5cf6;
  font-size: 0.875rem;
}

.palette-toggle {
  background: none;
  border: none;
  color: var(--color-gray-400);
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  display: none;
}

.palette-toggle:hover {
  color: var(--color-gray-600);
  background: var(--color-gray-100);
}

@media (max-width: 1023px) {
  .palette-toggle {
    display: block;
  }
  
  .component-palette {
    position: absolute;
    left: -100%;
    top: 0;
    width: 300px;
    height: 100%;
    z-index: var(--z-popover);
    transition: left var(--transition-normal);
  }
  
  .component-palette.open {
    left: 0;
  }
}

.palette-content {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-4);
}

.component-group {
  margin-bottom: var(--space-6);
}

.component-group:last-child {
  margin-bottom: 0;
}

.group-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-gray-700);
  margin-bottom: var(--space-3);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.component-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.component-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  background: white;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  cursor: grab;
  transition: all var(--transition-fast);
  user-select: none;
}

.component-item:hover {
  border-color: var(--color-primary-300);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.component-item:active {
  cursor: grabbing;
  transform: scale(0.95);
}

.component-item.dragging {
  opacity: 0.5;
  transform: rotate(5deg);
}

.component-item.quantifier {
  border-color: var(--color-secondary-300);
}

.component-item.quantifier:hover {
  border-color: var(--color-secondary-500);
}

.component-item.preset {
  border-color: var(--color-accent-300);
}

.component-item.preset:hover {
  border-color: var(--color-accent-500);
}

.component-icon {
  width: 2.5rem;
  height: 2.5rem;
  background: var(--color-primary-50);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary-600);
  font-size: 0.875rem;
  flex-shrink: 0;
}

.quantifier .component-icon {
  background: var(--color-secondary-50);
  color: var(--color-secondary-600);
}

.preset .component-icon {
  background: var(--color-accent-50);
  color: var(--color-accent-600);
}

.component-info {
  flex: 1;
}

.component-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-gray-800);
  margin-bottom: 0.125rem;
}

.component-desc {
  font-size: 0.75rem;
  color: var(--color-gray-500);
  font-family: var(--font-mono);
}

/* =========================
   Canvas Area
   ========================= */
.canvas-area {
  display: flex;
  flex-direction: column;
  background: white;
}

.canvas-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-4);
  border-bottom: 1px solid var(--color-gray-200);
  background: var(--color-gray-50);
}

.canvas-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex: 1;
}

.canvas-title h3 {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-gray-800);
}

.canvas-title h3 i {
  color: var(--color-primary-600);
  font-size: 0.875rem;
}

.canvas-info {
  font-size: 0.75rem;
  color: var(--color-gray-500);
  margin-left: var(--space-4);
}

.canvas-tools {
  display: flex;
  gap: var(--space-2);
}

.tool-btn {
  background: white;
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  padding: var(--space-2);
  color: var(--color-gray-600);
  cursor: pointer;
  transition: all var(--transition-fast);
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
}

.tool-btn:hover:not(:disabled) {
  border-color: var(--color-primary-300);
  color: var(--color-primary-600);
  background: var(--color-primary-50);
}

.tool-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* =========================
   Drop Zone
   ========================= */
.drop-zone {
  flex: 1;
  padding: var(--space-6);
  position: relative;
  min-height: 500px;
  margin-bottom: var(--space-12);
  background: 
    radial-gradient(circle at 25% 25%, rgba(99, 102, 241, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 75% 75%, rgba(139, 92, 246, 0.03) 0%, transparent 50%);
}

.drop-zone.drag-over {
  background: rgba(99, 102, 241, 0.05);
  border: 2px dashed var(--color-primary-400);
  border-radius: var(--radius-lg);
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 93%;
  text-align: center;
  color: var(--color-gray-500);
}

.empty-state.hidden {
  display: none;
}

.empty-icon {
  width: 4rem;
  height: 4rem;
  background: var(--color-gray-100);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--color-gray-400);
  margin-bottom: var(--space-4);
}

.empty-state h4 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-gray-700);
  margin-bottom: var(--space-2);
}

.empty-state p {
  margin-bottom: var(--space-6);
  max-width: 300px;
}

.example-hint {
  background: white;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
}

.example-hint span {
  display: block;
  font-size: 0.75rem;
  color: var(--color-gray-600);
  margin-bottom: var(--space-2);
}

.hint-components {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  justify-content: center;
}

.hint-component {
  background: var(--color-primary-50);
  color: var(--color-primary-700);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
}

.hint-plus {
  color: var(--color-gray-400);
  font-size: 0.75rem;
}

/* =========================
   Canvas Components
   ========================= */
.canvas-components {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
  min-height: 100px;
  padding: var(--space-4);
  border: 2px dashed var(--color-gray-300);
  border-radius: var(--radius-lg);
  transition: all var(--transition-normal);
  margin-bottom: var(--space-8);
}

.canvas-components.has-components {
  border-style: solid;
  border-color: var(--color-primary-300);
  background: rgba(99, 102, 241, 0.02);
}

.canvas-component {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: white;
  border: 2px solid var(--color-gray-300);
  border-radius: var(--radius-lg);
  padding: var(--space-2) var(--space-3);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-gray-800);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  user-select: none;
}

.canvas-component:hover {
  border-color: var(--color-primary-400);
  background: var(--color-primary-50);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.canvas-component.selected {
  border-color: var(--color-primary-600);
  background: var(--color-primary-100);
}

.canvas-component.quantifier {
  border-color: var(--color-secondary-400);
  background: var(--color-secondary-50);
}

.canvas-component.preset {
  border-color: var(--color-accent-400);
  background: var(--color-accent-50);
}

.component-remove {
  background: var(--color-error-500);
  color: white;
  border: none;
  border-radius: var(--radius-full);
  width: 1rem;
  height: 1rem;
  font-size: 0.625rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: all var(--transition-fast);
  position: absolute;
  top: -0.25rem;
  right: -0.25rem;
}

.canvas-component:hover .component-remove {
  opacity: 1;
}

.component-remove:hover {
  background: var(--color-error-600);
  transform: scale(1.1);
}

/* =========================
   Result Panel
   ========================= */
.result-panel {
  background: var(--color-gray-50);
  border-left: 1px solid var(--color-gray-200);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-4) var(--space-4) var(--space-3);
  border-bottom: 1px solid var(--color-gray-200);
  background: white;
}

.panel-title {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-gray-800);
}

.panel-title i {
  color: var(--color-success-600);
  font-size: 0.875rem;
}

.panel-toggle {
  background: none;
  border: none;
  color: var(--color-gray-400);
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  display: none;
}

.panel-toggle:hover {
  color: var(--color-gray-600);
  background: var(--color-gray-100);
}

@media (max-width: 1023px) {
  .panel-toggle {
    display: block;
  }
  
  .result-panel {
    position: absolute;
    right: -100%;
    top: 0;
    width: 350px;
    height: 100%;
    z-index: var(--z-popover);
    transition: right var(--transition-normal);
    box-shadow: var(--shadow-xl);
  }
  
  .result-panel.open {
    right: 0;
  }
}

.panel-content {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-4);
}

.result-section {
  background: white;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  margin-bottom: var(--space-4);
}

.result-section:last-child {
  margin-bottom: 0;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-3);
}

.section-header h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-gray-800);
}

.copy-btn,
.test-btn {
  background: var(--color-gray-100);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  padding: var(--space-1) var(--space-2);
  font-size: 0.75rem;
  color: var(--color-gray-600);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.copy-btn:hover,
.test-btn:hover {
  background: var(--color-primary-50);
  border-color: var(--color-primary-300);
  color: var(--color-primary-700);
}

/* =========================
   Pattern Display
   ========================= */
.pattern-display {
  background: var(--color-gray-900);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  margin-bottom: var(--space-3);
}

.pattern-display code {
  color: var(--color-primary-300);
  font-family: var(--font-mono);
  font-size: 1rem;
  line-height: 1.4;
  word-break: break-all;
}

.pattern-explanation {
  color: var(--color-gray-700);
  font-size: 0.875rem;
  line-height: 1.5;
}

.no-pattern,
.no-test {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-6);
  color: var(--color-gray-500);
}

.no-pattern i {
  font-size: 1.5rem;
  margin-bottom: var(--space-2);
  opacity: 0.5;
}

.explanation-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2);
  background: var(--color-gray-50);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-2);
}

.explanation-item:last-child {
  margin-bottom: 0;
}

.explanation-icon {
  width: 1.5rem;
  height: 1.5rem;
  background: var(--color-primary-100);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary-600);
  font-size: 0.75rem;
  flex-shrink: 0;
}

.explanation-text {
  flex: 1;
  font-size: 0.75rem;
}

.explanation-pattern {
  font-family: var(--font-mono);
  background: var(--color-gray-200);
  padding: 0.125rem 0.25rem;
  border-radius: 3px;
  color: var(--color-gray-800);
}

/* =========================
   Test Area
   ========================= */
.test-area {
  display: grid;
  gap: var(--space-3);
}

.test-textarea {
  width: 100%;
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.5;
  resize: vertical;
  transition: all var(--transition-normal);
}

.test-textarea:focus {
  outline: none;
  border-color: var(--color-primary-500);
  background: white;
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.1);
}

.test-result {
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.5;
  min-height: 80px;
}

.test-match {
  background: rgba(16, 185, 129, 0.2);
  color: var(--color-success-800);
  padding: 2px 4px;
  border-radius: 3px;
  font-weight: 600;
}

.result-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

/* =========================
   Settings Modal
   ========================= */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
}

.modal-content {
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-2xl);
  max-width: 500px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-6) var(--space-6) 0;
  border-bottom: 1px solid var(--color-gray-200);
  padding-bottom: var(--space-4);
  margin-bottom: var(--space-6);
}

.modal-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-gray-900);
}

.modal-close {
  background: none;
  border: none;
  color: var(--color-gray-400);
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  font-size: 1rem;
}

.modal-close:hover {
  color: var(--color-gray-600);
  background: var(--color-gray-100);
}

.modal-body {
  padding: 0 var(--space-6) var(--space-6);
}

.setting-group {
  margin-bottom: var(--space-6);
}

.setting-group:last-child {
  margin-bottom: 0;
}

.setting-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-gray-800);
  margin-bottom: var(--space-2);
}

.setting-input {
  width: 100%;
  padding: var(--space-3);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-family: var(--font-mono);
  transition: all var(--transition-normal);
}

.setting-input:focus {
  outline: none;
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.1);
}

.setting-help {
  font-size: 0.75rem;
  color: var(--color-gray-500);
  margin-top: var(--space-2);
}

.quantifier-options {
  display: grid;
  gap: var(--space-2);
}

.option-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.option-item:hover {
  border-color: var(--color-primary-300);
  background: var(--color-primary-50);
}

.option-item input[type="radio"] {
  margin: 0;
}

.option-item span {
  font-size: 0.875rem;
  color: var(--color-gray-700);
  font-weight: 500;
}

.modal-actions {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-gray-200);
}

.modal-actions .btn {
  flex: 1;
}

/* =========================
   Drag and Drop Effects
   ========================= */
.component-item.ghost {
  opacity: 0.3;
}

.drop-zone.drag-over::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--color-primary-600);
  color: white;
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-lg);
  font-weight: 600;
  pointer-events: none;
  z-index: 10;
}

.canvas-component.inserting {
  animation: insertComponent 0.3s ease-out;
}

@keyframes insertComponent {
  0% {
    opacity: 0;
    transform: scale(0.8) translateY(-10px);
  }
  100% {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.canvas-component.removing {
  animation: removeComponent 0.2s ease-in forwards;
}

@keyframes removeComponent {
  0% {
    opacity: 1;
    transform: scale(1);
  }
  100% {
    opacity: 0;
    transform: scale(0.8);
  }
}

/* =========================
   Responsive Design
   ========================= */
@media (max-width: 1023px) {
  .builder-header {
    padding: 6rem 0 3rem;
  }
  
  .header-title {
    font-size: 2rem;
  }
  
  .help-banner {
    flex-direction: column;
    text-align: center;
  }
  
  .builder-workspace {
    display: flex;
    flex-direction: column;
    position: relative;
  }
  
  .canvas-area {
    order: 1;
    min-height: 50vh;
  }
  
  .component-palette,
  .result-panel {
    order: 2;
  }
}

@media (max-width: 767px) {
  .canvas-header {
    flex-direction: column;
    gap: var(--space-3);
    align-items: stretch;
  }
  
  .canvas-title {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }
  
  .canvas-tools {
    justify-content: center;
  }
  
  .canvas-components {
    flex-direction: column;
    align-items: stretch;
  }
  
  .canvas-component {
    justify-content: center;
  }
  
  .result-actions {
    gap: var(--space-2);
  }
  
  .modal-actions {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .component-item {
    flex-direction: column;
    text-align: center;
    gap: var(--space-2);
  }
  
  .component-icon {
    width: 3rem;
    height: 3rem;
    font-size: 1rem;
  }
  
  .hint-components {
    flex-direction: column;
    gap: var(--space-1);
  }
  
  .hint-plus {
    transform: rotate(90deg);
  }
}

/* =========================
   Dark Mode Support
   ========================= */
@media (prefers-color-scheme: dark) {
  .dark .drop-zone {
    background: 
      radial-gradient(circle at 25% 25%, rgba(99, 102, 241, 0.05) 0%, transparent 50%),
      radial-gradient(circle at 75% 75%, rgba(139, 92, 246, 0.05) 0%, transparent 50%);
  }
  
  .dark .pattern-display {
    background: var(--color-gray-800);
  }
  
  .dark .pattern-display code {
    color: var(--color-primary-400);
  }
}

/* =========================
   Animation and Performance
   ========================= */
.component-item,
.canvas-component,
.tool-btn {
  will-change: transform;
}

.drop-zone.drag-over {
  will-change: background;
}

/* Reduce animations for users who prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
  .component-item,
  .canvas-component,
  .tool-btn {
    transition: none;
  }
  
  .insertComponent,
  .removeComponent {
    animation: none;
  }
}

/* =========================
   개발 중 모달 스타일
   builder.css 파일 맨 아래에 추가
   ========================= */

.dev-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(17, 24, 39, 0.85);
  backdrop-filter: blur(8px);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.dev-modal {
  background: white;
  border-radius: var(--radius-2xl);
  max-width: 600px;
  width: 100%;
  padding: var(--space-8);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 
              0 10px 10px -5px rgba(0, 0, 0, 0.04);
  animation: slideUp 0.4s ease-out;
  text-align: center;
  position: relative;
}

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

.dev-modal-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-6);
  background: linear-gradient(135deg, #8b5cf6, #6366f1);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: white;
  box-shadow: 0 10px 15px -3px rgba(139, 92, 246, 0.3);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 10px 15px -3px rgba(139, 92, 246, 0.3);
  }
  50% {
    transform: scale(1.05);
    box-shadow: 0 15px 20px -3px rgba(139, 92, 246, 0.4);
  }
}

.dev-modal-title {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: var(--space-3);
  line-height: 1.2;
}

.dev-modal-message {
  font-size: 1.125rem;
  color: var(--color-gray-600);
  line-height: 1.6;
  margin-bottom: var(--space-6);
}

.dev-modal-features {
  display: grid;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
  background: var(--color-gray-50);
  padding: var(--space-6);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-gray-200);
}

.dev-feature-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: 0.875rem;
  color: var(--color-gray-700);
  font-weight: 500;
  text-align: left;
}

.dev-feature-item i {
  width: 36px;
  height: 36px;
  background: white;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary-600);
  font-size: 0.875rem;
  flex-shrink: 0;
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
}

.dev-modal-actions {
  display: flex;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.dev-back-btn,
.dev-home-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  font-size: 1rem;
  font-weight: 600;
  transition: all var(--transition-normal);
  border: none;
  cursor: pointer;
  text-decoration: none;
}

.dev-back-btn {
  background: var(--color-gray-100);
  color: var(--color-gray-700);
  border: 2px solid var(--color-gray-200);
}

.dev-back-btn:hover {
  background: var(--color-gray-200);
  border-color: var(--color-gray-300);
  transform: translateY(-2px);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.dev-home-btn {
  background: linear-gradient(135deg, #8b5cf6, #6366f1);
  color: white;
  border: 2px solid transparent;
  box-shadow: 0 4px 6px -1px rgba(139, 92, 246, 0.4);
}

.dev-home-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 15px -3px rgba(139, 92, 246, 0.5);
}

.dev-modal-footer {
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-gray-200);
}

.dev-modal-footer p {
  font-size: 0.875rem;
  color: var(--color-gray-600);
  margin-bottom: var(--space-2);
}

.dev-tester-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-primary-600);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.dev-tester-link:hover {
  color: var(--color-primary-700);
  gap: var(--space-3);
}

.dev-tester-link i {
  transition: transform var(--transition-fast);
}

.dev-tester-link:hover i {
  transform: translateX(4px);
}

/* 모바일 최적화 */
@media (max-width: 640px) {
  .dev-modal {
    padding: var(--space-6);
  }

  .dev-modal-icon {
    width: 64px;
    height: 64px;
    font-size: 2rem;
    margin-bottom: var(--space-4);
  }

  .dev-modal-title {
    font-size: 1.5rem;
  }

  .dev-modal-message {
    font-size: 1rem;
  }

  .dev-modal-actions {
    flex-direction: column;
  }

  .dev-back-btn,
  .dev-home-btn {
    width: 100%;
  }

  .dev-modal-features {
    padding: var(--space-4);
  }

  .dev-feature-item {
    font-size: 0.8125rem;
  }

  .dev-feature-item i {
    width: 32px;
    height: 32px;
  }
}

/* 다크 모드 지원 */
@media (prefers-color-scheme: dark) {
  .dark .dev-modal {
    background: var(--color-gray-800);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.3);
  }

  .dark .dev-modal-title {
    color: white;
  }

  .dark .dev-modal-message {
    color: var(--color-gray-300);
  }

  .dark .dev-modal-features {
    background: var(--color-gray-900);
    border-color: var(--color-gray-700);
  }

  .dark .dev-feature-item {
    color: var(--color-gray-300);
  }

  .dark .dev-feature-item i {
    background: var(--color-gray-800);
  }

  .dark .dev-back-btn {
    background: var(--color-gray-700);
    color: var(--color-gray-200);
    border-color: var(--color-gray-600);
  }

  .dark .dev-back-btn:hover {
    background: var(--color-gray-600);
    border-color: var(--color-gray-500);
  }

  .dark .dev-modal-footer {
    border-top-color: var(--color-gray-700);
  }

  .dark .dev-modal-footer p {
    color: var(--color-gray-400);
  }
}

/* 접근성 개선 */
.dev-back-btn:focus,
.dev-home-btn:focus,
.dev-tester-link:focus {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

/* 프린트 시 모달 숨김 */
@media print {
  .dev-modal-overlay {
    display: none;
  }
}