/* ============================================
   CURSO DETALLE - MINIMALISTA Y COMPACTO
   Paleta Corporativa
   ============================================ */

:root {
  /* Colores Corporativos */
  --color-primary: #02408f;
  --color-secondary: #02b8eb;
  --color-accent: #ff9923;
  --color-neutral: #e8e8e8;
  
  /* Gradientes */
  --gradient-primary: linear-gradient(135deg, #02408f 0%, #02b8eb 100%);
  --gradient-accent: linear-gradient(135deg, #ff9923 0%, #ff7b00 100%);
  
  /* Texto */
  --color-text-primary: #1a1a1a;
  --color-text-secondary: #4a4a4a;
  --color-text-tertiary: #6b7280;
  --color-text-light: #ffffff;
  
  /* Backgrounds */
  --color-bg-light: #fafbfc;
  --color-bg-white: #ffffff;
  
  /* Sombras sutiles */
  --shadow-xs: 0 1px 3px rgba(2, 64, 143, 0.08);
  --shadow-sm: 0 2px 8px rgba(2, 64, 143, 0.1);
  --shadow-md: 0 4px 12px rgba(2, 64, 143, 0.12);
  --shadow-lg: 0 8px 20px rgba(2, 184, 235, 0.15);
  
  /* Espaciado compacto */
  --spacing-xs: 6px;
  --spacing-sm: 10px;
  --spacing-md: 14px;
  --spacing-lg: 20px;
  --spacing-xl: 28px;
  
  /* Radios */
  --radius: 8px;
  --radius-sm: 6px;
  --radius-lg: 12px;
  --radius-full: 999px;
  
  /* Transiciones */
  --transition: all 0.2s ease;
  --transition-fast: all 0.15s ease;
}


/* ============================================
   HEADER HERO - COMPACTO
============================================ */

.curso-header {
  position: relative;
  min-height: 240px;
  padding: 40px 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: var(--color-text-light);
  display: flex;
  align-items: center;
  background-color: var(--color-primary);
}

.curso-header-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(2, 64, 143, 0.85), rgba(2, 184, 235, 0.75));
  backdrop-filter: blur(2px);
}

.curso-header-content {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.8fr) minmax(0, 1fr);
  gap: var(--spacing-xl);
  align-items: flex-start;
}


/* ============================================
   INFORMACIÓN DEL CURSO - COMPACTA
============================================ */

.curso-info h1 {
  font-size: clamp(1.5rem, 3.5vw, 2rem);
  color: rgba(255, 255, 255, 0.95);
  font-weight: 800;
  margin: 0 0 10px;
  letter-spacing: -0.02em;
  line-height: 1.2;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);

}

.curso-resumen {
  font-size: 0.9rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.95);
  margin: 10px 0 16px;
  max-width: 550px;
}

.curso-categoria-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  background: rgba(255, 153, 35, 0.2);
  font-size: 0.7rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 10px;
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.curso-categoria-pill i {
  color: var(--color-accent);
}

.curso-docente {
  margin: 5px 0 10px;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.95);
  display: flex;
  align-items: center;
  gap: 6px;
}

.curso-docente i {
  color: var(--color-accent);
  font-size: 0.9rem;
}


/* ============================================
   BADGES - MINIMALISTAS
============================================ */

.curso-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0;
}

.badge-modalidad,
.badge-estado,
.badge-fecha {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  transition: var(--transition-fast);
}

/* Modalidad */
.badge-vivo {
  background: #ef4444;
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(239, 68, 68, 0.3);
}

.badge-hibrida {
  background: #8b5cf6;
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(139, 92, 246, 0.3);
}

.badge-online {
  background: #10b981;
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3);
}

/* Estado */
.badge-proximamente {
  background: var(--color-accent);
  color: #ffffff;
}

.badge-en-curso {
  background: var(--color-secondary);
  color: #ffffff;
}

/* Fecha */
.badge-fecha {
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #ffffff;
  backdrop-filter: blur(8px);
}


/* ============================================
   META INFORMACIÓN - COMPACTA
============================================ */

.curso-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  margin-top: 12px;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.95);
}

.curso-meta .meta-item {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.curso-meta i {
  color: var(--color-accent);
  font-size: 0.9rem;
}


/* ============================================
   TARJETA DE INSCRIPCIÓN - COMPACTA
============================================ */

.curso-card-inscripcion {
  position: relative;
  background: var(--color-bg-white);
  border-radius: var(--radius-lg);
  padding: 16px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-neutral);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: var(--transition);
}

.curso-card-inscripcion:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

/* Imagen del curso */
.curso-imagen-preview {
  width: 100%;
  height: 160px;
  border-radius: var(--radius);
  overflow: hidden;
  background: linear-gradient(135deg, #f3f4f6, #e5e7eb);
}

.curso-imagen-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.3s ease;
}

.curso-card-inscripcion:hover .curso-imagen-preview img {
  transform: scale(1.05);
}

.curso-imagen-preview .placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  color: #ffffff;
  font-size: 2rem;
}

/* Precio */
.curso-card-inscripcion .precio {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--color-primary);
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 4px;
  margin: 8px 0;
  line-height: 1;
}

.curso-card-inscripcion .precio.gratis {
  color: #10b981;
}

/* Botones */
.curso-card-inscripcion .btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 11px 20px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

.curso-card-inscripcion .btn-primary {
  background: var(--color-primary);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(2, 64, 143, 0.3);
}

.curso-card-inscripcion .btn-primary:hover {
  background: var(--color-secondary);
  box-shadow: 0 6px 16px rgba(2, 184, 235, 0.35);
  transform: translateY(-2px);
}

.curso-card-inscripcion .btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}

.curso-card-inscripcion .btn-secondary:hover {
  background: var(--color-primary);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(2, 64, 143, 0.25);
}

.curso-card-inscripcion .btn-success {
  background: #10b981;
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.curso-card-inscripcion .btn-success:hover {
  background: #059669;
  box-shadow: 0 6px 16px rgba(16, 185, 129, 0.35);
  transform: translateY(-2px);
}

/* Mensaje inscrito */
.curso-ya-inscrito {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 14px;
  background: linear-gradient(135deg, #d1fae5, #a7f3d0);
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  color: #065f46;
  margin-top: 4px;
}

.curso-ya-inscrito i {
  font-size: 1rem;
  color: #10b981;
}

/* Enlace volver */
.btn-link-volver {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  margin-top: 8px;
  font-size: 0.82rem;
  color: var(--color-text-tertiary);
  text-decoration: none;
  transition: var(--transition-fast);
}

.btn-link-volver:hover {
  color: var(--color-secondary);
}


/* ============================================
   SECCIÓN DE CONTENIDO - COMPACTA
============================================ */

.curso-detalle-section {
  padding: 40px 0 60px;
  background: var(--color-bg-light);
}

.curso-detalle-section .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  gap: var(--spacing-lg);
  align-items: flex-start;
}


/* ============================================
   SECCIONES - MINIMALISTAS
============================================ */

.section {
  background: var(--color-bg-white);
  border-radius: var(--radius);
  padding: 18px;
  border: 1px solid var(--color-neutral);
  box-shadow: var(--shadow-xs);
  margin-bottom: var(--spacing-md);
  transition: var(--transition);
}

.section:hover {
  box-shadow: var(--shadow-sm);
}

.section h2 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}

.section h2 i {
  color: var(--color-secondary);
  font-size: 1.15rem;
}

/* Descripción */
.curso-descripcion-larga {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}


/* ============================================
   BROCHURE - COMPACTO
============================================ */

.brochure-download-section {
  margin-top: 20px;
  padding: 16px;
  background: linear-gradient(135deg, #f0f9ff, #e0f2fe);
  border-radius: var(--radius);
  border-left: 3px solid var(--color-secondary);
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.brochure-download-section h3 {
  margin: 0 0 4px;
  color: var(--color-primary);
  font-size: 1rem;
  font-weight: 700;
}

.brochure-download-section p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: 0.85rem;
  line-height: 1.5;
}

.brochure-download-section .btn {
  padding: 8px 16px;
  font-size: 0.85rem;
  white-space: nowrap;
}


/* ============================================
   INFORMACIÓN CLASES EN VIVO - COMPACTA
============================================ */

.info-vivo-section {
  background: linear-gradient(135deg, #f0f9ff, #e0f2fe);
  border: 1px solid #bfdbfe;
}

.info-vivo-section h2 {
  color: var(--color-primary);
}

.info-vivo-card {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin-top: 12px;
}

.info-vivo-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: var(--color-bg-white);
  padding: 12px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-xs);
  transition: var(--transition);
}

.info-vivo-item:hover {
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.info-vivo-item i {
  font-size: 1.2rem;
  color: var(--color-secondary);
  flex-shrink: 0;
  margin-top: 2px;
}

.info-vivo-item strong {
  display: block;
  color: var(--color-primary);
  margin-bottom: 3px;
  font-size: 0.85rem;
  font-weight: 700;
}

.info-vivo-item span {
  color: var(--color-text-secondary);
  font-size: 0.82rem;
  line-height: 1.4;
}

.link-sesion {
  color: var(--color-secondary);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.85rem;
  transition: var(--transition-fast);
}

.link-sesion:hover {
  color: var(--color-primary);
  text-decoration: underline;
}


/* ============================================
   LISTA DE LECCIONES - COMPACTA
============================================ */

.lecciones-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.leccion-item {
  display: flex;
  gap: 12px;
  padding: 12px;
  border-radius: var(--radius);
  border: 1px solid var(--color-neutral);
  background: var(--color-bg-light);
  transition: var(--transition);
  cursor: pointer;
}

.leccion-item:hover {
  background: #eef2ff;
  border-color: var(--color-secondary);
  transform: translateX(3px);
  box-shadow: var(--shadow-xs);
}

.leccion-icono {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, #e0e7ff, #c7d2fe);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-primary);
  transition: var(--transition-fast);
}

.leccion-item:hover .leccion-icono {
  background: var(--gradient-primary);
  color: #ffffff;
  transform: scale(1.08);
}

.leccion-icono i {
  font-size: 1rem;
}

.leccion-info {
  flex: 1;
  min-width: 0;
}

.leccion-titulo {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 3px;
  line-height: 1.3;
}

.leccion-descripcion {
  font-size: 0.8rem;
  color: var(--color-text-tertiary);
  line-height: 1.4;
}


/* ============================================
   SIDEBAR - COMPACTO
============================================ */

.sidebar {
  position: sticky;
  top: 90px;
}

.info-box {
  background: var(--color-bg-white);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow-xs);
  border: 1px solid var(--color-neutral);
}

.info-box h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-neutral);
}

.info-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  padding: 8px 0;
  border-bottom: 1px solid #f3f4f6;
}

.info-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.info-label {
  color: var(--color-text-tertiary);
  font-weight: 500;
}

.info-value {
  font-weight: 700;
  color: var(--color-text-primary);
  text-align: right;
}


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

@media (max-width: 1024px) {
  .curso-header-content {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    gap: var(--spacing-lg);
  }
  
  .content-grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  }
}

@media (max-width: 768px) {
  .curso-header {
    padding: 32px 0;
  }
  
  .curso-header-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .curso-info h1 {
    font-size: 1.5rem;
  }
  
  .curso-card-inscripcion {
    max-width: 420px;
    margin: 0 auto;
  }
  
  .curso-badges {
    flex-direction: column;
    gap: var(--spacing-xs);
  }
  
  .badge-modalidad,
  .badge-estado,
  .badge-fecha {
    width: 100%;
    justify-content: center;
  }
  
  .content-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .sidebar {
    position: static;
  }
  
  .info-vivo-card {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .curso-header {
    padding: 24px 0;
  }
  
  .curso-info h1 {
    font-size: 1.3rem;
  }
  
  .section {
    padding: 14px;
  }
  
  .leccion-item {
    padding: 10px;
  }
  
  .curso-card-inscripcion {
    padding: 14px;
  }
  
  .info-box {
    padding: 14px;
  }
  
  .brochure-download-section {
    flex-direction: column;
    text-align: center;
  }
  
  .brochure-download-section .btn {
    width: 100%;
  }
}


/* ============================================
   ANIMACIONES
============================================ */

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

.section {
  animation: fadeInUp 0.4s ease-out;
}

.leccion-item {
  animation: fadeInUp 0.3s ease-out backwards;
}

.leccion-item:nth-child(n) {
  animation-delay: calc(0.04s * var(--i, 0));
}


/* ============================================
   ACCESIBILIDAD
============================================ */

.btn:focus-visible,
.leccion-item:focus-visible,
.link-sesion:focus-visible {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}


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

@media print {
  .curso-card-inscripcion,
  .btn-link-volver {
    display: none;
  }
  
  .curso-header {
    background: var(--color-primary) !important;
  }
  
  .content-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   LECCIONES CLICABLES (Usuarios Inscritos)
   ============================================ */

/* Lección clicable - agregar clase */
.leccion-item.leccion-clickable {
  cursor: pointer;
}

.leccion-item.leccion-clickable:hover {
  transform: translateX(6px);
}

/* Link wrapper para lección */
.leccion-link {
  display: flex;
  gap: 12px;
  text-decoration: none;
  color: inherit;
  width: 100%;
  align-items: center;
}

/* Flecha indicadora */
.leccion-arrow {
  margin-left: auto;
  color: var(--color-text-tertiary);
  font-size: 1.125rem;
  transition: var(--transition-fast);
  flex-shrink: 0;
  opacity: 0;
}

.leccion-item.leccion-clickable .leccion-arrow {
  opacity: 1;
}

.leccion-link:hover .leccion-arrow {
  color: var(--color-secondary);
  transform: translateX(4px);
}

/* Lección bloqueada (no inscrito) */
.leccion-item.leccion-locked {
  opacity: 0.65;
  cursor: not-allowed;
}

.leccion-item.leccion-locked:hover {
  transform: none;
  background: var(--color-bg-light);
  border-color: var(--color-neutral);
}

.leccion-bloqueada {
  display: flex;
  gap: 12px;
  width: 100%;
  align-items: center;
}

.leccion-icono.locked {
  background: linear-gradient(135deg, #e5e7eb, #d1d5db);
  color: var(--color-text-tertiary);
}

.leccion-item.leccion-locked .leccion-titulo {
  color: var(--color-text-tertiary);
}

.leccion-item.leccion-locked .leccion-descripcion {
  color: #9ca3af;
}

/* Responsive */
@media (max-width: 768px) {
  .leccion-arrow {
    font-size: 1rem;
  }
  
  .leccion-item.leccion-clickable:hover {
    transform: translateX(4px);
  }
}

@media (max-width: 480px) {
  .leccion-arrow {
    display: none;
  }
}