/**
 * ==============================================================================
 * EXPERTOS TIC ENGINEERING STANDARD (ETAES)
 * Archivo: public/css/components.css
 * Propósito: Componentes UI modulares, accesibles y con estética de alto impacto.
 * Responsabilidad: Botones, tarjetas, insignias, medidor de CTR, modales y simulador.
 * Dependencias: public/css/variables.css
 * Autor: Carlos Londoño – EXPERTOS TIC
 * Proyecto: ViralCTR AI - Generador de Titulares YouTube con Alto CTR
 * ==============================================================================
 */

/* ==============================================================================
 * BOTONES
 * ============================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1.25;
  transition: all var(--transition-fast);
  user-select: none;
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.98);
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  pointer-events: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(59, 130, 246, 0.35);
}

.btn-primary:hover {
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.5);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: var(--color-primary-subtle);
  color: var(--color-primary);
  border: 1px solid var(--color-primary-border);
}

.btn-secondary:hover {
  background-color: var(--color-primary);
  color: #ffffff;
}

.btn-outline {
  background-color: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
}

.btn-outline:hover {
  background-color: var(--bg-surface-alt);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-ghost {
  background-color: transparent;
  color: var(--text-secondary);
}

.btn-ghost:hover {
  background-color: var(--bg-surface-alt);
  color: var(--text-primary);
}

.btn-sm {
  padding: 0.4rem 0.75rem;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 0.85rem 1.75rem;
  font-size: 1.1rem;
  border-radius: var(--radius-lg);
}

.btn-icon {
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border-radius: var(--radius-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* ==============================================================================
 * CAMPOS DE FORMULARIO
 * ============================================================================== */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
  margin-bottom: var(--space-md);
}

.form-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.form-control, .form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background-color: var(--bg-surface);
  color: var(--text-primary);
  font-size: 0.975rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus, .form-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-subtle);
}

.form-control::placeholder {
  color: var(--text-muted);
}

/* Checkbox estilizado */
.checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.9rem;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
}

.checkbox-label input[type="checkbox"] {
  width: 1.1rem;
  height: 1.1rem;
  accent-color: var(--color-primary);
  cursor: pointer;
}

/* ==============================================================================
 * INSIGNIAS (BADGES) Y CHIPS
 * ============================================================================== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.65rem;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.badge-primary {
  background-color: var(--color-primary-subtle);
  color: var(--color-primary);
  border: 1px solid var(--color-primary-border);
}

.badge-purple {
  background-color: var(--color-secondary-subtle);
  color: var(--color-secondary);
  border: 1px solid var(--color-secondary-border);
}

.badge-success {
  background-color: var(--color-success-subtle);
  color: var(--color-success);
  border: 1px solid var(--color-success-border);
}

.badge-warning {
  background-color: var(--color-warning-subtle);
  color: var(--color-warning);
  border: 1px solid var(--color-warning-border);
}

.badge-danger {
  background-color: var(--color-error-subtle);
  color: var(--color-error);
  border: 1px solid var(--color-error-border);
}

/* Chips de sugerencia rápida */
.chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-top: var(--space-xs);
}

.chip {
  padding: 0.35rem 0.85rem;
  font-size: 0.825rem;
  background-color: var(--bg-surface-alt);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.chip:hover {
  background-color: var(--color-primary-subtle);
  border-color: var(--color-primary-border);
  color: var(--color-primary);
  transform: translateY(-1px);
}

/* ==============================================================================
 * TARJETAS (CARDS)
 * ============================================================================== */
.card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-smooth);
  overflow: hidden;
}

.card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--border-strong);
}

.card-glass {
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* ==============================================================================
 * TARJETA DE TITULAR ESPECÍFICA (TITLE CARD)
 * ============================================================================== */
.title-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: clamp(1rem, 2vw, 1.35rem);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  position: relative;
}

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

.title-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xs);
  flex-wrap: wrap;
}

.title-card-main {
  font-size: clamp(1.05rem, 1.4vw, 1.25rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.title-metrics-row {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding: var(--space-xs) 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.ctr-score-meter {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 800;
  font-size: 0.95rem;
}

.ctr-score-meter.high {
  color: var(--color-success);
}

.char-counter-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.power-words-container {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.power-word-tag {
  background-color: var(--color-primary-subtle);
  color: var(--color-primary);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-xs);
}

.psychological-box {
  background-color: var(--bg-surface-alt);
  border-radius: var(--radius-sm);
  padding: var(--space-xs) var(--space-sm);
  font-size: 0.85rem;
  color: var(--text-secondary);
  border-left: 3px solid var(--color-secondary);
}

.title-card-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-top: auto;
  padding-top: var(--space-xs);
}

/* ==============================================================================
 * SIMULADOR DE FEED DE YOUTUBE (YOUTUBE MOCKUP)
 * ============================================================================== */
.yt-preview-container {
  background-color: #0f0f0f;
  color: #f1f1f1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  max-width: 480px;
  margin: 0 auto;
}

.yt-preview-thumbnail {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, #1e293b, #0f172a);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.yt-preview-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.yt-time-badge {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0, 0, 0, 0.8);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 5px;
  border-radius: 4px;
}

.yt-preview-details {
  display: flex;
  gap: 12px;
  padding: 12px;
}

.yt-channel-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #ffffff;
  font-size: 0.9rem;
}

.yt-preview-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}

.yt-video-title {
  color: #f1f1f1;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
}

.yt-channel-meta {
  font-size: 0.8rem;
  color: #aaaaaa;
}

/* ==============================================================================
 * SISTEMA DE NOTIFICACIONES TOAST
 * ============================================================================== */
.toast-container {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  z-index: 9999;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  min-width: 280px;
  max-width: 420px;
  padding: 0.85rem 1.15rem;
  border-radius: var(--radius-md);
  background-color: var(--bg-surface-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-xl);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  animation: fadeIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  font-size: 0.925rem;
}

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

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

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

/* ==============================================================================
 * VENTANAS MODALES ACCESIBLES
 * ============================================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(1rem, 3vw, 2rem);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 640px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  transform: scale(0.95) translateY(10px);
  transition: transform var(--transition-smooth);
}

.modal-overlay.active .modal-content {
  transform: scale(1) translateY(0);
}

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

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

.modal-footer {
  padding: var(--space-md) var(--space-lg);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-sm);
}

/* ==============================================================================
 * EFECTO SKELETON LOADER
 * ============================================================================== */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--bg-surface-alt) 25%,
    var(--border-subtle) 50%,
    var(--bg-surface-alt) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

.skeleton-text {
  height: 1.25rem;
  margin-bottom: 0.5rem;
}

.skeleton-title {
  height: 2rem;
  width: 80%;
  margin-bottom: 0.75rem;
}

/* ==============================================================================
 * DISEÑO MINIMALISTA ESTILO CHATGPT (EXPERTOS TIC ETAES)
 * ============================================================================== */
.chatgpt-prompt-card {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

.chatgpt-prompt-box {
  background-color: var(--bg-surface-alt);
  border: 1.5px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
}

.chatgpt-prompt-box:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px var(--color-primary-subtle), 0 8px 24px rgba(59, 130, 246, 0.12);
  background-color: var(--bg-surface);
}

.chatgpt-textarea {
  width: 100%;
  max-width: 100%;
  border: none;
  background: transparent;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 1rem;
  line-height: 1.5;
  padding: 1rem 1.25rem 0.5rem;
  resize: none;
  min-height: 72px;
  outline: none;
  box-sizing: border-box;
}

.chatgpt-textarea::placeholder {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.chatgpt-actions-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 1rem 0.75rem;
  gap: var(--space-xs);
  flex-wrap: wrap;
  border-top: 1px solid rgba(0, 0, 0, 0.03);
}

[data-theme="dark"] .chatgpt-actions-bar {
  border-top-color: rgba(255, 255, 255, 0.05);
}

.chatgpt-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.btn-generate-main {
  padding: 0.65rem 1.35rem;
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, var(--color-primary), #2563eb);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(59, 130, 246, 0.35);
  transition: all var(--transition-fast);
}

.btn-generate-main:hover {
  transform: translateY(-1.5px);
  box-shadow: 0 6px 18px rgba(59, 130, 246, 0.45);
}

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

/* Acordeón de Ajustes Avanzados (Colapsable y Limpio) */
.advanced-accordion {
  margin-top: 1rem;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background-color: var(--bg-surface);
  transition: all var(--transition-fast);
  overflow: hidden;
}

.advanced-accordion[open] {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
}

.advanced-accordion-summary {
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
  background-color: var(--bg-surface-alt);
  transition: color var(--transition-fast), background-color var(--transition-fast);
  list-style: none;
}

.advanced-accordion-summary::-webkit-details-marker {
  display: none;
}

.advanced-accordion-summary:hover {
  color: var(--color-primary);
  background-color: var(--color-primary-subtle);
}

.summary-badge {
  font-size: 0.7rem;
  padding: 0.15rem 0.5rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  color: var(--text-muted);
}

.advanced-accordion-body {
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  border-top: 1px solid var(--border-subtle);
}

/* Empty State Responsive - Cero Desbordamiento */
.empty-tips-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

@media (min-width: 640px) {
  .empty-tips-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}