/* Estilos Generador de Cursos - Soporte de Modo Claro / Modo Oscuro */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Outfit:wght@600;700;800&family=Fira+Code:wght@400;500&display=swap');

:root {
  /* TEMA OSCURO POR DEFECTO */
  --bg-primary: #060913;
  --bg-secondary: #0f1322;
  --bg-panel: rgba(20, 26, 46, 0.65);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-color-focus: #3b82f6;
  
  --text-bright: #f8fafc;
  --text-normal: #cbd5e1;
  --text-muted: #64748b;
  
  --accent-blue: #3b82f6;
  --accent-purple: #8b5cf6;
  --accent-pink: #ec4899;
  
  --success: #10b981;
  --success-bg: rgba(16, 185, 129, 0.1);
  --error: #ef4444;
  --error-bg: rgba(239, 68, 68, 0.1);
  
  --glow-opacity: 0.15;
  
  --border-radius-lg: 16px;
  --border-radius-md: 10px;
  --border-radius-sm: 6px;
  
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --theme-transition: background-color 0.5s ease, color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

[data-theme="light"] {
  /* TEMA CLARO */
  --bg-primary: #f1f5f9;
  --bg-secondary: #ffffff;
  --bg-panel: rgba(255, 255, 255, 0.75);
  --border-color: rgba(15, 23, 42, 0.08);
  --border-color-focus: #2563eb;
  
  --text-bright: #0f172a;
  --text-normal: #334155;
  --text-muted: #64748b;
  
  --accent-blue: #2563eb;
  --accent-purple: #7c3aed;
  
  --success: #059669;
  --success-bg: rgba(5, 150, 105, 0.08);
  --error: #dc2626;
  --error-bg: rgba(220, 38, 38, 0.08);
  
  --glow-opacity: 0.08;
}

/* Reset y estructura básica */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  transition: var(--theme-transition);
}

/* Cancelar transiciones molestas para elementos de scroll o escritura activa */
textarea, pre, code, iframe {
  transition: none !important;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-normal);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  position: relative;
}

/* Glows del fondo */
.glow-bg {
  position: absolute;
  width: 40vw;
  height: 40vw;
  border-radius: 50%;
  filter: blur(150px);
  opacity: var(--glow-opacity);
  pointer-events: none;
  z-index: 0;
}

.glow-purple {
  background: var(--accent-purple);
  top: -10%;
  left: -10%;
  animation: pulse-glow 8s ease-in-out infinite alternate;
}

.glow-blue {
  background: var(--accent-blue);
  bottom: -10%;
  right: -10%;
  animation: pulse-glow 10s ease-in-out infinite alternate-reverse;
}

@keyframes pulse-glow {
  0% { transform: scale(1) translate(0, 0); }
  100% { transform: scale(1.1) translate(30px, 30px); }
}

/* Contenedor del Generador */
#generator-container {
  width: 96vw;
  height: 94vh;
  background: var(--bg-panel);
  backdrop-filter: blur(25px);
  -webkit-backdrop-filter: blur(25px);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  display: flex;
  flex-direction: column;
  z-index: 1;
  overflow: hidden;
}

/* Header */
.generator-header {
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(15, 19, 34, 0.03);
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 14px;
}

.logo-emoji {
  font-size: 2.2rem;
  animation: logo-hover 3s ease-in-out infinite;
}

@keyframes logo-hover {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px) scale(1.05); }
}

.generator-header h1 {
  font-family: 'Outfit', sans-serif;
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--text-bright);
  letter-spacing: -0.5px;
  line-height: 1.2;
}

.generator-header .subtitle {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 500;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Workspace Split-Screen */
.generator-workspace {
  flex-grow: 1;
  display: grid;
  grid-template-columns: 1.1fr 1.2fr;
  overflow: hidden;
  height: calc(100% - 77px);
}

/* Panel de Edición (Izquierda) */
.panel-editor {
  border-right: 1px solid var(--border-color);
  overflow-y: auto;
  padding: 28px;
  display: flex;
  flex-direction: column;
  background: rgba(10, 14, 26, 0.02);
}

.panel-title {
  font-family: 'Outfit', sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 6px;
}

/* Formulario */
.ai-form-container {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-top: 15px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-normal);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

input[type="text"],
select,
textarea {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  padding: 12px 14px;
  color: var(--text-bright);
  font-family: inherit;
  font-size: 0.92rem;
  outline: none;
  box-shadow: 0 1px 2px rgba(0,0,0,0.02);
}

input[type="text"]:focus,
select:focus,
textarea:focus {
  border-color: var(--border-color-focus);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
  background-color: var(--bg-secondary);
}

textarea {
  resize: vertical;
}

/* Botones */
.btn {
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  font-size: 0.92rem;
  padding: 10px 18px;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  color: white;
  box-shadow: 0 4px 14px rgba(59, 130, 246, 0.2);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
  filter: brightness(1.08);
}

.btn-secondary {
  background: var(--bg-secondary);
  color: var(--text-normal);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: var(--bg-primary);
  color: var(--text-bright);
  border-color: var(--text-muted);
}

/* Botón IA Brillante con Shimmer */
.btn-ai-generate {
  background: linear-gradient(135deg, #8b5cf6, #ec4899, #3b82f6, #8b5cf6);
  background-size: 300% 100%;
  color: white;
  box-shadow: 0 6px 20px rgba(139, 92, 246, 0.35);
  animation: shimmer-ai 5s linear infinite;
}

.btn-ai-generate:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(139, 92, 246, 0.5);
  filter: brightness(1.1);
}

@keyframes shimmer-ai {
  0% { background-position: 0% 50%; }
  100% { background-position: 300% 50%; }
}

/* Spinner de carga */
.ai-spinner {
  width: 20px;
  height: 20px;
  border: 2.5px solid rgba(147, 197, 253, 0.2);
  border-top: 2.5px solid var(--accent-blue);
  border-radius: 50%;
  animation: spin-loader 0.8s linear infinite;
  flex-shrink: 0;
}

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

/* Caja de Estado */
.ai-status-box {
  display: none;
  align-items: center;
  gap: 12px;
  margin-top: 15px;
  padding: 12px 16px;
  background: var(--success-bg);
  border: 1px solid var(--success);
  border-radius: 8px;
  color: var(--text-bright);
  animation: slideIn 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes slideIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Subida de archivos */
.label-with-action {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.file-link-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-blue);
  cursor: pointer;
  padding: 4px 8px;
  background: var(--success-bg);
  border: 1px dashed var(--accent-blue);
  border-radius: 4px;
}

.file-link-label:hover {
  filter: brightness(1.1);
}

.file-upload-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  padding: 12px 14px;
  color: var(--text-normal);
  font-size: 0.92rem;
  font-weight: 500;
  cursor: pointer;
  text-align: center;
  height: 48px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-upload-wrapper:hover {
  background-color: var(--bg-primary);
  color: var(--text-bright);
  border-color: var(--text-muted);
}

/* Panel de Previsualización (Derecha) */
.panel-preview {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  background: rgba(5, 7, 14, 0.05);
}

.preview-tabs {
  display: flex;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 8px 16px 0 16px;
}

.preview-tab {
  background: none;
  border: none;
  padding: 10px 20px;
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text-muted);
  cursor: pointer;
  position: relative;
}

.preview-tab.active {
  color: var(--text-bright);
}

.preview-tab.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--accent-blue);
  border-radius: 3px 3px 0 0;
}

.preview-viewport {
  flex-grow: 1;
  position: relative;
  overflow: hidden;
  height: calc(100% - 46px);
}

.tab-panel {
  display: none;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

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

/* Iframe */
.iframe-container {
  width: 100%;
  height: 100%;
  background: #f1f5f9;
  position: relative;
}

#live-preview-iframe {
  width: 100%;
  height: 100%;
  border: none;
  background: transparent;
  display: block;
}

/* Visor de Código */
.code-view-container {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.code-selector {
  display: flex;
  gap: 8px;
  padding: 12px 16px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.code-file-btn {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  color: var(--text-normal);
  padding: 6px 14px;
  font-family: 'Fira Code', monospace;
  font-size: 0.8rem;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
}

.code-file-btn.active {
  background: rgba(59, 130, 246, 0.15);
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  font-weight: 600;
}

.code-display-wrapper {
  flex-grow: 1;
  position: relative;
  overflow: hidden;
  height: calc(100% - 55px);
}

.code-display-wrapper pre {
  margin: 0;
  padding: 20px;
  height: 100%;
  overflow: auto;
  background: var(--bg-secondary);
}

.code-display-wrapper code {
  font-family: 'Fira Code', monospace;
  font-size: 0.82rem;
  color: var(--text-normal);
  line-height: 1.6;
  display: block;
  white-space: pre;
}

.btn-copy-code {
  position: absolute;
  top: 15px;
  right: 25px;
  z-index: 10;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  color: var(--text-normal);
  padding: 6px 14px;
  font-size: 0.8rem;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  font-family: inherit;
}

.btn-copy-code:hover {
  background: var(--accent-blue);
  color: white;
  border-color: var(--accent-blue);
}

/* Responsividad */
@media (max-width: 1024px) {
  .generator-workspace {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr;
  }
  
  #generator-container {
    height: auto;
    max-height: none;
    overflow: visible;
  }
  
  .generator-workspace {
    height: auto;
    overflow: visible;
  }
  
  .panel-editor {
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }
  
  .panel-preview {
    height: 600px;
  }
}