/* NEO Regex Expert - Specific Styles */

/* =========================
   Expert Header
   ========================= */
.expert-header {
  padding: 8rem 0 4rem;
  background: linear-gradient(135deg, 
    rgba(139, 92, 246, 0.08) 0%, 
    rgba(99, 102, 241, 0.05) 50%, 
    rgba(16, 185, 129, 0.03) 100%);
  border-bottom: 1px solid var(--color-gray-200);
  position: relative;
  overflow: hidden;
}

.expert-header::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: 
    radial-gradient(circle at 20% 80%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(99, 102, 241, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 40% 40%, rgba(16, 185, 129, 0.05) 0%, transparent 50%);
  animation: expertFloat 25s ease-in-out infinite;
}

@keyframes expertFloat {
  0%, 100% { transform: rotate(0deg) scale(1); }
  33% { transform: rotate(120deg) scale(1.05); }
  66% { transform: rotate(240deg) scale(0.95); }
}

.header-content {
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.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);
  background: linear-gradient(135deg, #8b5cf6, var(--color-primary-600));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

@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-8);
}

.skill-level {
  display: flex;
  justify-content: center;
  margin-top: var(--space-6);
}

.level-indicator {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  background: rgba(139, 92, 246, 0.1);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  border: 1px solid rgba(139, 92, 246, 0.2);
}

.level-bar {
  width: 100px;
  height: 8px;
  background: var(--color-gray-200);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.level-fill {
  height: 100%;
  border-radius: var(--radius-full);
  position: relative;
}

.level-fill.expert {
  width: 90%;
  background: linear-gradient(90deg, #8b5cf6, #7c3aed);
}

.level-fill::after {
  content: '';
  position: absolute;
  top: 0;
  right: -10px;
  width: 20px;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  animation: expertShine 2s infinite;
}

@keyframes expertShine {
  0% { transform: translateX(-20px); }
  100% { transform: translateX(20px); }
}

.level-text {
  font-size: 0.875rem;
  font-weight: 600;
  color: #7c3aed;
}

/* =========================
   Tools Dashboard
   ========================= */
.tools-dashboard {
  padding: var(--space-8) 0;
  background: white;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .dashboard-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1200px) {
  .dashboard-grid {
    grid-template-columns: 3.5fr 1.5fr;
    grid-template-rows: auto auto auto;
  }
  
  .tool-card.featured {
    grid-column: 1 / 2;
    grid-row: 1 / 2;
  }
  
  .tool-card:nth-child(2) {
    grid-column: 2 / 3;
    grid-row: 1 / 3;
  }
  
  .tool-card:nth-child(3) {
    grid-column: 1 / 2;
    grid-row: 2 / 3;
  }
  
  .tool-card:nth-child(4) {
    grid-column: 1 / 2;
    grid-row: 3 / 4;
  }
}

.tool-card {
  background: white;
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-2xl);
  padding: var(--space-6);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.tool-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--color-gray-300);
  transition: all var(--transition-normal);
}

.tool-card:hover {
  border-color: var(--color-primary-300);
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
}

.tool-card:hover::before {
  background: linear-gradient(90deg, #8b5cf6, var(--color-primary-500));
}

.tool-card.featured {
  border-color: var(--color-primary-400);
  box-shadow: var(--shadow-lg);
}

.tool-card.featured::before {
  background: linear-gradient(90deg, #8b5cf6, var(--color-primary-500));
}

.tool-card.security::before {
  background: linear-gradient(90deg, var(--color-success-500), var(--color-success-600));
}

.tool-card.security:hover::before {
  background: linear-gradient(90deg, var(--color-success-600), var(--color-success-700));
}

.tool-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--space-5);
  gap: var(--space-4);
}

.tool-icon {
  width: 3.5rem;
  height: 3.5rem;
  background: linear-gradient(135deg, #8b5cf6, #7c3aed);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.25rem;
  flex-shrink: 0;
  box-shadow: var(--shadow-md);
}

.tool-card.security .tool-icon {
  background: linear-gradient(135deg, var(--color-success-500), var(--color-success-600));
}

.tool-info {
  flex: 1;
}

.tool-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-gray-900);
  margin-bottom: var(--space-2);
}

.tool-desc {
  font-size: 0.875rem;
  color: var(--color-gray-600);
  line-height: 1.5;
}

.tool-status {
  flex-shrink: 0;
}

.status-badge {
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.status-badge.active {
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-success-700);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

/* =========================
   Advanced Analyzer
   ========================= */
.tool-content {
  position: relative;
}

.analyzer-input {
  margin-bottom: var(--space-4);
}

.analyzer-input label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-gray-700);
  margin-bottom: var(--space-2);
}

.advanced-input {
  display: flex;
  gap: var(--space-2);
}

.pattern-input {
  flex: 1;
  padding: var(--space-3);
  border: 2px solid var(--color-gray-300);
  border-radius: var(--radius-lg);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  transition: all var(--transition-normal);
}

.pattern-input:focus {
  outline: none;
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.analyze-btn {
  background: linear-gradient(135deg, #8b5cf6, #7c3aed);
  color: white;
  border: none;
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-4);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.875rem;
}

.analyze-btn:hover {
  background: linear-gradient(135deg, #7c3aed, #6d28d9);
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.analysis-result {
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  min-height: 150px;
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.no-analysis {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100px;
  color: var(--color-gray-500);
  text-align: center;
  font-style: italic;
}

.analysis-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-gray-200);
}

.analysis-item:last-child {
  border-bottom: none;
}

.analysis-label {
  font-weight: 600;
  color: var(--color-gray-700);
}

.analysis-value {
  font-weight: 600;
}

.analysis-value.good {
  color: var(--color-success-600);
}

.analysis-value.warning {
  color: var(--color-accent-600);
}

.analysis-value.danger {
  color: var(--color-error-600);
}

/* =========================
   Performance Monitor
   ========================= */
.performance-metrics {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.metric-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-3);
  background: var(--color-gray-50);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--color-primary-500);
}

.metric-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-gray-600);
}

.metric-value {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-gray-900);
  font-family: var(--font-mono);
}

.performance-chart {
  background: var(--color-gray-50);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  display: flex;
  justify-content: center;
  align-items: center;
}

.performance-chart canvas {
  max-width: 100%;
  height: auto;
}

/* =========================
   Pattern Debugger
   ========================= */
.debugger-controls {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.debug-btn {
  background: var(--color-gray-100);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-3);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-gray-700);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.debug-btn:hover:not(:disabled) {
  background: var(--color-primary-50);
  border-color: var(--color-primary-300);
  color: var(--color-primary-700);
}

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

.debug-visualization {
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  min-height: 120px;
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.no-debug {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 80px;
  color: var(--color-gray-500);
  text-align: center;
  font-style: italic;
}

.debug-step {
  background: white;
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  margin-bottom: var(--space-2);
  font-size: 0.875rem;
}

.debug-step:last-child {
  margin-bottom: 0;
}

.step-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-2);
}

.step-number {
  background: var(--color-primary-100);
  color: var(--color-primary-700);
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
}

.step-status {
  font-size: 0.75rem;
  font-weight: 500;
}

.step-status.success {
  color: var(--color-success-600);
}

.step-status.fail {
  color: var(--color-error-600);
}

/* =========================
   Security Status
   ========================= */
.security-status {
  margin-bottom: var(--space-4);
}

.status-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  font-weight: 500;
}

.status-item.safe {
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-success-700);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.status-item.warning {
  background: rgba(245, 158, 11, 0.1);
  color: var(--color-accent-700);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.status-item.danger {
  background: rgba(239, 68, 68, 0.1);
  color: var(--color-error-700);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.vulnerability-details {
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  min-height: 100px;
  font-size: 0.875rem;
}

.no-vulnerabilities {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 60px;
  color: var(--color-gray-500);
  text-align: center;
  font-style: italic;
}

.vulnerability-item {
  background: white;
  border: 1px solid var(--color-error-300);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  margin-bottom: var(--space-2);
}

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

.vuln-title {
  font-weight: 600;
  color: var(--color-error-700);
  margin-bottom: var(--space-1);
}

.vuln-desc {
  color: var(--color-error-600);
  font-size: 0.875rem;
}

/* =========================
   Advanced Patterns
   ========================= */
.advanced-patterns {
  padding: var(--space-12) 0;
  background: var(--color-gray-50);
}

.techniques-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .techniques-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.technique-card {
  background: white;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-2xl);
  padding: var(--space-6);
  transition: all var(--transition-normal);
}

.technique-card:hover {
  border-color: var(--color-primary-300);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.technique-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.technique-icon {
  width: 3rem;
  height: 3rem;
  background: linear-gradient(135deg, #8b5cf6, #7c3aed);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.125rem;
}

.technique-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-gray-900);
}

.technique-content p {
  color: var(--color-gray-600);
  margin-bottom: var(--space-4);
  line-height: 1.6;
}

/* =========================
   Example Tabs
   ========================= */
.example-tabs {
  margin-top: var(--space-4);
}

.tab-buttons {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.tab-btn {
  background: var(--color-gray-100);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-4);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-gray-700);
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

.code-example {
  background: var(--color-gray-900);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  margin-bottom: var(--space-3);
}

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

.code-header span {
  color: var(--color-gray-400);
  font-size: 0.875rem;
  font-weight: 500;
}

.copy-code-btn {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-sm);
  padding: var(--space-1) var(--space-2);
  color: var(--color-gray-300);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.copy-code-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  color: white;
}

.code-example code {
  color: var(--color-primary-300);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  word-break: break-all;
}

.code-desc {
  color: var(--color-gray-400);
  font-size: 0.75rem;
  margin-top: var(--space-2);
}

.usage-example {
  background: var(--color-gray-50);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  margin-top: var(--space-3);
}

.usage-example h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-gray-800);
  margin-bottom: var(--space-2);
}

.usage-example pre {
  background: white;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-sm);
  padding: var(--space-3);
  overflow-x: auto;
}

.usage-example code {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-gray-800);
}

/* =========================
   Performance Comparison
   ========================= */
.performance-comparison {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  margin-top: var(--space-4);
}

@media (min-width: 640px) {
  .performance-comparison {
    grid-template-columns: 1fr 1fr;
  }
}

.comparison-item {
  background: white;
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  text-align: center;
}

.comparison-item.slow {
  border-color: var(--color-error-300);
  background: rgba(239, 68, 68, 0.02);
}

.comparison-item.fast {
  border-color: var(--color-success-300);
  background: rgba(16, 185, 129, 0.02);
}

.comparison-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.comparison-item.slow .comparison-header {
  color: var(--color-error-700);
}

.comparison-item.fast .comparison-header {
  color: var(--color-success-700);
}

.comparison-header span {
  font-weight: 600;
  font-size: 0.875rem;
}

.comparison-item code {
  display: block;
  background: var(--color-gray-900);
  color: var(--color-primary-300);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  margin: var(--space-3) 0;
}

.comparison-desc {
  font-size: 0.875rem;
  color: var(--color-gray-600);
}

/* =========================
   Unicode Examples
   ========================= */
.unicode-examples {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.unicode-item {
  background: white;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-3);
  align-items: center;
}

.unicode-pattern {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  background: var(--color-gray-900);
  color: var(--color-primary-300);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.unicode-desc {
  font-size: 0.875rem;
  color: var(--color-gray-600);
}

.unicode-sample {
  font-size: 1.5rem;
  text-align: center;
  grid-row: span 2;
}

/* =========================
   Code Generator
   ========================= */
.code-generator {
  padding: var(--space-12) 0;
  background: white;
}

.generator-workspace {
  background: white;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-2xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-lg);
}

.generator-input {
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-gray-200);
}

.input-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-4);
}

.input-header h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-gray-900);
}

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

.tool-btn {
  background: var(--color-gray-100);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-3);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-gray-700);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

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

.pattern-input-area {
  margin-bottom: var(--space-4);
}

.pattern-field {
  width: 100%;
  padding: var(--space-3);
  border: 2px solid var(--color-gray-300);
  border-radius: var(--radius-lg);
  font-family: var(--font-mono);
  font-size: 1rem;
  margin-bottom: var(--space-3);
  transition: all var(--transition-normal);
}

.pattern-field:focus {
  outline: none;
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.flags-selector {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.flags-selector label {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.875rem;
  color: var(--color-gray-700);
  cursor: pointer;
}

.flags-selector input[type="checkbox"] {
  width: 1rem;
  height: 1rem;
}

.generated-code {
  position: relative;
}

.code-tabs {
  display: flex;
  gap: var(--space-1);
  margin-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-gray-200);
  overflow-x: auto;
}

.code-tab {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  padding: var(--space-3) var(--space-4);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-gray-600);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.code-tab:hover,
.code-tab.active {
  color: var(--color-primary-600);
  border-bottom-color: var(--color-primary-500);
}

.code-panels {
  position: relative;
}

.code-panel {
  display: none;
}

.code-panel.active {
  display: block;
}

.code-panel .code-header {
  background: var(--color-gray-900);
  color: white;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.code-panel pre {
  background: var(--color-gray-900);
  color: var(--color-gray-200);
  padding: var(--space-4);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  margin: 0;
  overflow-x: auto;
}

.code-panel code {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.6;
}

/* =========================
   Best Practices
   ========================= */
.best-practices {
  padding: var(--space-12) 0;
  background: var(--color-gray-50);
}

.practices-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .practices-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.practice-card {
  background: white;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-2xl);
  padding: var(--space-6);
  transition: all var(--transition-normal);
}

.practice-card:hover {
  border-color: var(--color-primary-300);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.practice-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

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

.practice-card:nth-child(1) .practice-icon {
  color: var(--color-primary-600);
}

.practice-card:nth-child(2) .practice-icon {
  color: var(--color-success-600);
}

.practice-card:nth-child(3) .practice-icon {
  color: var(--color-accent-600);
}

.practice-header h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-gray-900);
}

.practice-list {
  list-style: none;
  padding: 0;
}

.practice-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-2) 0;
  font-size: 0.875rem;
  color: var(--color-gray-700);
  line-height: 1.5;
}

.practice-list li i {
  margin-top: 0.125rem;
  flex-shrink: 0;
}

.practice-list li i.fa-check {
  color: var(--color-success-600);
}

.practice-list li i.fa-times {
  color: var(--color-error-600);
}

.practice-list code {
  background: var(--color-gray-100);
  color: var(--color-primary-700);
  padding: 0.125rem 0.25rem;
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

/* =========================
   Expert Actions
   ========================= */
.expert-actions {
  position: fixed;
  right: var(--space-6);
  bottom: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  z-index: var(--z-popover);
}

.action-btn {
  width: 3.5rem;
  height: 3.5rem;
  background: linear-gradient(135deg, #8b5cf6, #7c3aed);
  color: white;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
  box-shadow: var(--shadow-lg);
}

.action-btn:hover {
  background: linear-gradient(135deg, #7c3aed, #6d28d9);
  transform: translateY(-2px) scale(1.05);
  box-shadow: var(--shadow-xl);
}

/* =========================
   Responsive Design
   ========================= */
@media (max-width: 1199px) {
  .dashboard-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    grid-template-rows: auto !important;
  }
  
  .tool-card.featured,
  .tool-card:nth-child(2),
  .tool-card:nth-child(3),
  .tool-card:nth-child(4) {
    grid-column: span 1 !important;
    grid-row: auto !important;
  }
}

@media (max-width: 767px) {
  .expert-header {
    padding: 6rem 0 3rem;
  }
  
  .header-title {
    font-size: 2rem;
  }
  
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
  
  .tool-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }
  
  .advanced-input {
    flex-direction: column;
  }
  
  .analyze-btn {
    align-self: flex-start;
  }
  
  .techniques-grid {
    grid-template-columns: 1fr;
  }
  
  .performance-comparison {
    grid-template-columns: 1fr;
  }
  
  .practices-grid {
    grid-template-columns: 1fr;
  }
  
  .code-tabs {
    padding-bottom: var(--space-2);
  }
  
  .tab-buttons {
    flex-wrap: wrap;
  }
  
  .flags-selector {
    flex-direction: column;
    gap: var(--space-2);
  }
  
  .expert-actions {
    right: var(--space-4);
    bottom: var(--space-4);
  }
  
  .action-btn {
    width: 3rem;
    height: 3rem;
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  .level-indicator {
    flex-direction: column;
    text-align: center;
  }
  
  .tool-card {
    padding: var(--space-4);
  }
  
  .tool-icon {
    width: 3rem;
    height: 3rem;
    font-size: 1rem;
  }
  
  .technique-icon {
    width: 2.5rem;
    height: 2.5rem;
    font-size: 1rem;
  }
  
  .debugger-controls {
    flex-direction: column;
  }
  
  .metric-item {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-1);
  }
}

/* =========================
   Animation Performance
   ========================= */
.tool-card,
.technique-card,
.practice-card,
.action-btn {
  will-change: transform;
}

@media (prefers-reduced-motion: reduce) {
  .expert-header::before,
  .level-fill::after,
  .expertFloat,
  .expertShine {
    animation: none !important;
  }
  
  .tool-card,
  .technique-card,
  .practice-card,
  .action-btn {
    transition: none !important;
  }
}

/* =========================
   Dark Mode Support
   ========================= */
@media (prefers-color-scheme: dark) {
  .dark .code-example {
    background: var(--color-gray-800);
  }
  
  .dark .code-example code {
    color: var(--color-primary-400);
  }
  
  .dark .usage-example pre {
    background: var(--color-gray-800);
    border-color: var(--color-gray-600);
  }
  
  .dark .usage-example code {
    color: var(--color-gray-200);
  }
}

/* =========================
   Print Styles
   ========================= */
@media print {
  .expert-actions,
  .tool-status,
  .debugger-controls,
  .input-tools {
    display: none;
  }
  
  .tool-card,
  .technique-card,
  .practice-card {
    break-inside: avoid;
  }
  
  .dashboard-grid,
  .techniques-grid,
  .practices-grid {
    grid-template-columns: 1fr !important;
  }
}