/* ============================================
   EDITOR HTML SEO-PERFECTO HUMAI - ESTILOS GALÁCTICOS
   ============================================ */

/* Loading Screen Styles */
.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  transition: opacity 0.5s ease;
}

.loading-content {
  text-align: center;
  color: white;
  max-width: 400px;
  padding: 2rem;
}

.loading-logo {
  font-size: 4rem;
  margin-bottom: 1rem;
  animation: rocket-loading 2s ease-in-out infinite alternate;
}

@keyframes rocket-loading {
  0% { transform: translateY(0px) scale(1); }
  100% { transform: translateY(-10px) scale(1.05); }
}

.loading-content h2 {
  font-size: 1.5rem;
  margin-bottom: 2rem;
  font-weight: 600;
}

.loading-content .humai-text {
  background: linear-gradient(45deg, #f093fb, #f5576c);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.loading-spinner {
  width: 50px;
  height: 50px;
  border: 4px solid rgba(255, 255, 255, 0.3);
  border-top: 4px solid white;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 2rem;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.loading-status {
  font-size: 1rem;
  margin-bottom: 1.5rem;
  opacity: 0.9;
  min-height: 1.5rem;
}

.loading-progress {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 1rem;
}

.loading-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, #4facfe, #00f2fe);
  border-radius: 3px;
  transition: width 0.3s ease;
  width: 0%;
}

.loading-details {
  font-size: 0.8rem;
  opacity: 0.7;
  margin-top: 0.5rem;
}

/* Hide main content while loading */
body:has(.loading-screen:not([style*="display: none"])) .main-header,
body:has(.loading-screen:not([style*="display: none"])) .main-container {
  opacity: 0;
  pointer-events: none;
}

/* Variables CSS para temas */
:root {
  /* Colores HumAi Brand */
  --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --success-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  --warning-gradient: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
  --danger-gradient: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
  
  /* Colores principales */
  --primary-color: #667eea;
  --secondary-color: #764ba2;
  --accent-color: #f093fb;
  --success-color: #4facfe;
  --warning-color: #ffd93d;
  --danger-color: #fa709a;
  
  /* Backgrounds y superficies */
  --bg-primary: #0f1419;
  --bg-secondary: #1a1f2e;
  --bg-tertiary: #252b3a;
  --bg-card: #2a3142;
  --bg-hover: #3a4154;
  --bg-glass: rgba(42, 49, 66, 0.8);
  
  /* Texto */
  --text-primary: #ffffff;
  --text-secondary: #a8b2d1;
  --text-tertiary: #7a8ba3;
  --text-accent: #667eea;
  
  /* Borders y dividers */
  --border-primary: #3a4154;
  --border-secondary: #4a5568;
  --border-accent: #667eea;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
  --shadow-xl: 0 12px 32px rgba(0, 0, 0, 0.25);
  --shadow-glow: 0 0 20px rgba(102, 126, 234, 0.3);
  
  /* Espaciado */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  
  /* Border radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --transition-slow: 0.35s ease;
}

/* Tema claro */
[data-theme="light"] {
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --bg-card: #ffffff;
  --bg-hover: #f1f5f9;
  --bg-glass: rgba(255, 255, 255, 0.9);
  
  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-tertiary: #64748b;
  
  --border-primary: #e2e8f0;
  --border-secondary: #cbd5e1;
  
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 12px 32px rgba(0, 0, 0, 0.15);
}

/* Reset y base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

/* ============================================
   HEADER PRINCIPAL
   ============================================ */

.main-header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-primary);
  padding: var(--spacing-md) var(--spacing-xl);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 100%;
  gap: var(--spacing-xl);
}

.logo-section {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  flex-shrink: 0;
}

.logo-icon {
  background: var(--primary-gradient);
  color: white;
  padding: var(--spacing-sm);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-lg);
  box-shadow: var(--shadow-glow);
  animation: pulse-glow 2s infinite alternate;
}

@keyframes pulse-glow {
  0% { box-shadow: 0 0 20px rgba(102, 126, 234, 0.3); }
  100% { box-shadow: 0 0 30px rgba(102, 126, 234, 0.6); }
}

.logo-section h1 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

.humai-text {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.beta-badge {
  background: var(--success-gradient);
  color: white;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
  40% { transform: translateY(-3px); }
  60% { transform: translateY(-2px); }
}

/* ============================================
   BARRA DE PROGRESO SEO
   ============================================ */

.seo-progress-container {
  flex: 1;
  max-width: 600px;
  margin: 0 var(--spacing-lg);
}

.seo-score-display {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.seo-label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  font-weight: 500;
}

.seo-score {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--text-accent);
  text-shadow: 0 0 10px rgba(102, 126, 234, 0.5);
}

.seo-progress-bar {
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  height: 8px;
  overflow: hidden;
  margin-bottom: var(--spacing-md);
  position: relative;
}

.seo-progress-fill {
  height: 100%;
  background: var(--primary-gradient);
  border-radius: var(--radius-full);
  width: 0%;
  transition: width var(--transition-slow);
  position: relative;
  overflow: hidden;
}

.seo-progress-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  animation: progress-shine 2s infinite;
}

@keyframes progress-shine {
  0% { left: -100%; }
  100% { left: 100%; }
}

.seo-indicators {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--spacing-sm);
}

.seo-indicator {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--spacing-sm);
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-primary);
  transition: all var(--transition-normal);
  cursor: pointer;
}

.seo-indicator:hover {
  background: var(--bg-hover);
  border-color: var(--border-accent);
  transform: translateY(-2px);
}

.seo-indicator i {
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-xs);
  color: var(--text-accent);
}

.seo-indicator span {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: var(--spacing-xs);
}

.indicator-score {
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--text-accent);
}

/* ============================================
   CONTROLES DE HEADER
   ============================================ */

.header-controls {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  flex-shrink: 0;
}

.theme-toggle {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  color: var(--text-primary);
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
}

.theme-toggle:hover {
  background: var(--bg-hover);
  border-color: var(--border-accent);
  transform: rotate(180deg);
}

.action-btn {
  background: var(--primary-gradient);
  color: white;
  border: none;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  box-shadow: var(--shadow-md);
}

.action-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.action-btn:active {
  transform: translateY(0);
}

.save-btn {
  background: var(--success-gradient);
}

.export-btn {
  background: var(--warning-gradient);
  color: var(--text-primary);
}

/* ============================================
   CONTENEDOR PRINCIPAL
   ============================================ */

.main-container {
  display: grid;
  grid-template-columns: 400px 1fr;
  height: calc(100vh - 100px);
  gap: 0;
}

/* ============================================
   PANEL IZQUIERDO
   ============================================ */

.left-panel {
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-primary);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.panel-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border-primary);
  background: var(--bg-tertiary);
}

.panel-header h2 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.panel-header h2 i {
  color: var(--text-accent);
}

.panel-tabs {
  display: flex;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: var(--spacing-xs);
}

.tab-btn {
  flex: 1;
  background: transparent;
  border: none;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.tab-btn.active {
  background: var(--primary-gradient);
  color: white;
  box-shadow: var(--shadow-sm);
}

.tab-btn:not(.active):hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

/* ============================================
   CONTENIDO DE PESTAÑAS
   ============================================ */

.tab-content {
  display: none;
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-lg);
}

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

/* ============================================
   BIBLIOTECA DE BLOQUES
   ============================================ */

.blocks-library h3 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
}

.search-blocks {
  position: relative;
  margin-bottom: var(--spacing-lg);
}

.search-blocks input {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  padding: var(--spacing-sm) var(--spacing-lg) var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  transition: all var(--transition-normal);
}

.search-blocks input:focus {
  outline: none;
  border-color: var(--border-accent);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.search-blocks i {
  position: absolute;
  right: var(--spacing-md);
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-tertiary);
}

.blocks-grid {
  display: grid;
  gap: var(--spacing-md);
}

.block-item {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.block-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--primary-gradient);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.block-item:hover {
  background: var(--bg-hover);
  border-color: var(--border-accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.block-item:hover::before {
  opacity: 1;
}

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

.block-title {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-weight: 600;
  color: var(--text-primary);
  font-size: var(--font-size-sm);
}

.block-title i {
  color: var(--text-accent);
}

.block-actions {
  display: flex;
  gap: var(--spacing-xs);
}

.action-icon {
  background: transparent;
  border: none;
  color: var(--text-tertiary);
  padding: var(--spacing-xs);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: var(--font-size-xs);
}

.action-icon:hover {
  background: var(--bg-hover);
  color: var(--text-accent);
}

.block-description {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  line-height: 1.4;
  margin-bottom: var(--spacing-sm);
}

.block-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.block-tag {
  background: var(--bg-tertiary);
  color: var(--text-tertiary);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 500;
}

/* ============================================
   BLOQUES SELECCIONADOS
   ============================================ */

.selected-blocks-container {
  margin-top: var(--spacing-xl);
  border-top: 1px solid var(--border-primary);
  padding-top: var(--spacing-lg);
}

.selected-blocks-container h3 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
}

.selected-blocks {
  min-height: 200px;
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 200px;
  color: var(--text-tertiary);
  text-align: center;
}

.empty-state i {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-md);
  color: var(--text-tertiary);
}

.selected-block {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-left: 4px solid var(--primary-color);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  position: relative;
}

.selected-block-header {
  display: flex;
  align-items: center;
  justify-content: between;
  margin-bottom: var(--spacing-sm);
}

.selected-block-title {
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.selected-block-controls {
  display: flex;
  gap: var(--spacing-xs);
  margin-left: auto;
}

.drag-handle {
  cursor: grab;
  color: var(--text-tertiary);
  padding: var(--spacing-xs);
}

.drag-handle:active {
  cursor: grabbing;
}

/* ============================================
   CONFIGURACIÓN SEO
   ============================================ */

.seo-config h3 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-lg);
}

.config-group {
  margin-bottom: var(--spacing-lg);
}

.config-group label {
  display: block;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-sm);
}

.input-with-counter {
  position: relative;
}

.config-group input,
.config-group textarea,
.config-group select {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  transition: all var(--transition-normal);
  margin-bottom: var(--spacing-sm);
}

.config-group input:focus,
.config-group textarea:focus,
.config-group select:focus {
  outline: none;
  border-color: var(--border-accent);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.config-group textarea {
  resize: vertical;
  min-height: 80px;
}

.char-counter {
  position: absolute;
  bottom: var(--spacing-sm);
  right: var(--spacing-sm);
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
  background: var(--bg-secondary);
  padding: var(--spacing-xs);
  border-radius: var(--radius-sm);
}

/* ============================================
   HERRAMIENTAS
   ============================================ */

.tools-container h3 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-lg);
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.tool-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  text-align: center;
}

.tool-btn:hover {
  background: var(--bg-hover);
  border-color: var(--border-accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.tool-btn i {
  font-size: var(--font-size-xl);
  color: var(--text-accent);
  margin-bottom: var(--spacing-sm);
}

.tool-btn span {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-primary);
}

/* ============================================
   EDITOR DE CÓDIGO
   ============================================ */

.css-editor-container {
  margin-bottom: var(--spacing-xl);
}

.css-editor-container h3 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
}

.editor-tabs {
  display: flex;
  margin-bottom: var(--spacing-sm);
}

.editor-tab {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-bottom: none;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.editor-tab:first-child {
  border-radius: var(--radius-sm) 0 0 0;
}

.editor-tab:last-child {
  border-radius: 0 var(--radius-sm) 0 0;
}

.editor-tab.active {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-color: var(--border-accent);
}

.code-editor {
  border: 1px solid var(--border-primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) var(--radius-sm);
  overflow: hidden;
}

.code-editor textarea {
  width: 100%;
  background: var(--bg-tertiary);
  border: none;
  padding: var(--spacing-md);
  color: var(--text-primary);
  font-family: 'JetBrains Mono', 'Consolas', monospace;
  font-size: var(--font-size-sm);
  line-height: 1.6;
  resize: vertical;
  min-height: 150px;
}

.code-editor textarea:focus {
  outline: none;
}

/* ============================================
   VALIDACIÓN
   ============================================ */

.validation-panel h3 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
}

.validation-results {
  max-height: 200px;
  overflow-y: auto;
}

.validation-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
}

.validation-item.success {
  background: rgba(79, 172, 254, 0.1);
  border-left: 4px solid var(--success-color);
  color: var(--success-color);
}

.validation-item.warning {
  background: rgba(255, 217, 61, 0.1);
  border-left: 4px solid var(--warning-color);
  color: var(--warning-color);
}

.validation-item.error {
  background: rgba(250, 112, 154, 0.1);
  border-left: 4px solid var(--danger-color);
  color: var(--danger-color);
}

/* ============================================
   PANEL DERECHO - PREVIEW
   ============================================ */

.right-panel {
  background: var(--bg-primary);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.preview-header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-primary);
  padding: var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.preview-header h2 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.preview-header h2 i {
  color: var(--text-accent);
}

.preview-controls {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.device-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  color: var(--text-secondary);
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
}

.device-btn.active {
  background: var(--primary-gradient);
  color: white;
  border-color: var(--primary-color);
}

.device-btn:not(.active):hover {
  background: var(--bg-hover);
  border-color: var(--border-accent);
}

.preview-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  color: var(--text-primary);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.preview-btn:hover {
  background: var(--bg-hover);
  border-color: var(--border-accent);
}

.preview-container {
  flex: 1;
  padding: var(--spacing-lg);
  background: var(--bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.preview-frame {
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  background: white;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-lg);
}

.preview-frame.desktop {
  width: 100%;
  height: 100%;
}

.preview-frame.tablet {
  width: 768px;
  height: 600px;
  max-width: 90%;
  max-height: 90%;
}

.preview-frame.mobile {
  width: 375px;
  height: 600px;
  max-width: 90%;
  max-height: 90%;
}

/* ============================================
   MODALES
   ============================================ */

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(5px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  animation: fadeIn var(--transition-normal);
}

.modal-overlay.active {
  display: flex;
}

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

.modal {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  max-width: 90vw;
  max-height: 90vh;
  overflow: hidden;
  animation: slideUp var(--transition-normal);
}

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

.modal-header {
  background: var(--bg-secondary);
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.modal-close {
  background: none;
  border: none;
  font-size: var(--font-size-xl);
  color: var(--text-tertiary);
  cursor: pointer;
  transition: color var(--transition-fast);
  padding: var(--spacing-sm);
  line-height: 1;
}

.modal-close:hover {
  color: var(--text-primary);
}

.modal-body {
  padding: var(--spacing-xl);
  max-height: 70vh;
  overflow-y: auto;
}

.modal-footer {
  background: var(--bg-secondary);
  padding: var(--spacing-lg);
  border-top: 1px solid var(--border-primary);
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-md);
}

/* Estilos específicos de modales */

.prompt-content {
  margin-bottom: var(--spacing-xl);
}

.prompt-example {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--font-size-sm);
  line-height: 1.6;
  color: var(--text-primary);
}

.prompt-actions {
  display: flex;
  justify-content: center;
}

.btn-copy-prompt {
  background: var(--success-gradient);
  color: white;
  border: none;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.btn-copy-prompt:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.seo-tips {
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
}

.seo-tips h4 {
  color: var(--text-accent);
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-lg);
}

.seo-tips ul {
  list-style: none;
  padding: 0;
}

.seo-tips li {
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--border-primary);
  color: var(--text-secondary);
}

.seo-tips li:last-child {
  border-bottom: none;
}

.export-options {
  display: grid;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.export-option {
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  text-align: left;
}

.export-option:hover {
  background: var(--bg-hover);
  border-color: var(--border-accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.export-option i {
  font-size: var(--font-size-xl);
  color: var(--text-accent);
}

.export-option span {
  font-weight: 600;
  color: var(--text-primary);
}

.final-seo-analysis {
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
}

/* Botones generales */
.btn-cancel,
.btn-insert {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-primary);
  color: var(--text-primary);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.btn-insert {
  background: var(--primary-gradient);
  color: white;
  border-color: var(--primary-color);
}

.btn-cancel:hover,
.btn-insert:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

/* ============================================
   NOTIFICACIONES TOAST
   ============================================ */

.toast-container {
  position: fixed;
  top: var(--spacing-xl);
  right: var(--spacing-xl);
  z-index: 10001;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.toast {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  padding: var(--spacing-md) var(--spacing-lg);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  max-width: 400px;
  animation: slideInRight var(--transition-normal);
}

@keyframes slideInRight {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.toast.success {
  border-left: 4px solid var(--success-color);
}

.toast.warning {
  border-left: 4px solid var(--warning-color);
}

.toast.error {
  border-left: 4px solid var(--danger-color);
}

.toast i {
  font-size: var(--font-size-lg);
}

.toast.success i {
  color: var(--success-color);
}

.toast.warning i {
  color: var(--warning-color);
}

.toast.error i {
  color: var(--danger-color);
}

.toast-message {
  flex: 1;
  color: var(--text-primary);
  font-size: var(--font-size-sm);
}

.toast-close {
  background: none;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  font-size: var(--font-size-sm);
  padding: var(--spacing-xs);
}

.toast-close:hover {
  color: var(--text-primary);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 1200px) {
  .main-container {
    grid-template-columns: 350px 1fr;
  }
  
  .header-content {
    gap: var(--spacing-md);
  }
  
  .seo-indicators {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .main-container {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr;
  }
  
  .left-panel {
    height: 300px;
    border-right: none;
    border-bottom: 1px solid var(--border-primary);
  }
  
  .header-content {
    flex-direction: column;
    gap: var(--spacing-md);
  }
  
  .seo-progress-container {
    margin: 0;
    max-width: 100%;
  }
  
  .seo-indicators {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .tool-grid {
    grid-template-columns: 1fr;
  }
  
  .modal {
    max-width: 95vw;
    margin: var(--spacing-md);
  }
  
  .toast-container {
    top: var(--spacing-md);
    right: var(--spacing-md);
    left: var(--spacing-md);
  }
  
  .toast {
    max-width: 100%;
  }
}

@media (max-width: 480px) {
  .main-header {
    padding: var(--spacing-md);
  }
  
  .logo-section h1 {
    font-size: var(--font-size-lg);
  }
  
  .header-controls {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .action-btn {
    padding: var(--spacing-sm);
    font-size: var(--font-size-xs);
  }
  
  .panel-tabs {
    flex-direction: column;
  }
  
  .tab-btn {
    text-align: center;
  }
}

/* ============================================
   UTILIDADES
   ============================================ */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.fade-in {
  animation: fadeIn var(--transition-slow);
}

.slide-up {
  animation: slideUp var(--transition-normal);
}

.pulse {
  animation: pulse 2s infinite;
}

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

.loading {
  opacity: 0.6;
  pointer-events: none;
}

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

/* ============================================
   CUSTOM SCROLLBARS
   ============================================ */

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-tertiary);
}

::-webkit-scrollbar-thumb {
  background: var(--border-secondary);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-tertiary);
}

/* Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--border-secondary) var(--bg-tertiary);
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
  .main-header,
  .left-panel,
  .modal-overlay,
  .toast-container {
    display: none !important;
  }
  
  .main-container {
    grid-template-columns: 1fr;
  }
  
  .right-panel {
    height: auto;
  }
  
  .preview-frame {
    width: 100% !important;
    height: auto !important;
    border: none !important;
  }
}