/* ====== COMPONENTES REUTILIZABLES ====== */

/* Botones mejorados */
.btn {
  display: inline-block;
  padding: 0.8rem 1.5rem;
  border-radius: 12px;
  border: 2px solid var(--azul);
  background: #fff;
  color: var(--azul);
  text-decoration: none;
  font-weight: 700;
  font-size: 1rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  text-align: center;
  cursor: pointer;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.2), transparent);
  transition: left 0.5s;
}

.btn:hover::before {
  left: 100%;
}

.btn:hover {
  background: var(--azul);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(11,61,145,.3);
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--verde), #00d084);
  border-color: var(--verde);
  color: #fff;
  box-shadow: 0 4px 15px rgba(0,168,89,.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #00d084, var(--verde));
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0,168,89,.4);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border-color: #fff;
}

.btn-outline:hover {
  background: #fff;
  color: var(--azul);
}

/* Cards mejoradas */
.card {
  border: 1px solid var(--borde);
  border-radius: 16px;
  padding: 1.5rem;
  background: #fff;
  box-shadow: 0 4px 20px rgba(0,0,0,.08);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--verde), var(--azul));
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.card:hover::before {
  transform: scaleX(1);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,.15);
  border-color: var(--azul);
}

.card h4 {
  margin: 0 0 0.8rem;
  color: var(--azul);
  font-size: 1.2rem;
  font-weight: 700;
}

.card p {
  margin: 0;
  color: #666;
  line-height: 1.6;
}

/* Formularios mejorados */
.form input,
.form textarea,
.form select {
  width: 100%;
  padding: 1rem;
  border: 2px solid var(--borde);
  border-radius: 12px;
  margin: 0.5rem 0;
  background: #fff;
  font-size: 1rem;
  transition: all 0.3s ease;
  font-family: inherit;
}

.form input:focus,
.form textarea:focus,
.form select:focus {
  border-color: var(--azul);
  box-shadow: 0 0 0 4px rgba(11,61,145,.1);
  outline: none;
  transform: translateY(-1px);
}

.form button {
  width: 100%;
  margin-top: 1rem;
}

/* Listas mejoradas */
.list-check {
  list-style: none;
  padding: 0;
}

.list-check li {
  margin: 0.8rem 0;
  padding-left: 0;
  position: relative;
  font-size: 1.05rem;
  line-height: 1.6;
}

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

.list-dash li {
  margin: 0.6rem 0;
  padding-left: 1.5rem;
  position: relative;
}

.list-dash li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--azul);
  font-weight: bold;
}

/* Chips/Tags mejorados */
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  padding: 0;
  list-style: none;
}

.chips li {
  background: linear-gradient(135deg, #e8f4fd, #f0f8ff);
  border: 1px solid #b3d9ff;
  padding: 0.6rem 1.2rem;
  border-radius: 25px;
  font-weight: 600;
  color: var(--azul);
  transition: all 0.3s ease;
  cursor: pointer;
}

.chips li:hover {
  background: linear-gradient(135deg, var(--azul), #1e3a8a);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(11,61,145,.3);
}

/* Grids mejorados */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

/* Responsive */
@media (max-width: 768px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .cards {
    grid-template-columns: 1fr;
  }
  
  .chips {
    justify-content: center;
  }
}

/* Animaciones de entrada */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

/* Efectos de hover para imágenes */
.electro-img img,
.brand-logo,
.project-card img {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.electro-img img:hover,
.brand-logo:hover,
.project-card img:hover {
  transform: scale(1.02);
  box-shadow: 0 8px 25px rgba(0,0,0,.15);
}

/* Mejoras de accesibilidad */
.btn:focus-visible,
.card:focus-visible {
  outline: 3px solid var(--azul);
  outline-offset: 2px;
}

/* Estados de carga */
.loading {
  opacity: 0.6;
  pointer-events: none;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid var(--borde);
  border-top: 2px solid var(--azul);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* ====== COMPONENTES ESPECÍFICOS ====== */

/* Timeline para hoja de ruta */
.roadmap-timeline {
  position: relative;
  padding: 2rem 0;
}

.timeline-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 3rem;
  position: relative;
}

.timeline-year {
  background: linear-gradient(135deg, var(--azul), var(--verde));
  color: white;
  padding: 1rem 1.5rem;
  border-radius: 12px;
  font-weight: 800;
  font-size: 1.1rem;
  min-width: 120px;
  text-align: center;
  margin-right: 2rem;
  box-shadow: 0 4px 15px rgba(11,61,145,.3);
}

.timeline-content {
  flex: 1;
  background: #fff;
  padding: 1.5rem;
  border-radius: 12px;
  border: 1px solid var(--borde);
  box-shadow: 0 4px 15px rgba(0,0,0,.08);
}

.timeline-content h3 {
  margin: 0 0 1rem;
  color: var(--azul);
  font-size: 1.3rem;
}

/* Progress bars */
.progress-bar {
  width: 100%;
  height: 8px;
  background: #e0e7ff;
  border-radius: 4px;
  overflow: hidden;
  margin: 0.5rem 0;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--verde), var(--azul));
  border-radius: 4px;
  transition: width 0.3s ease;
}

/* TCO Calculator */
.tco-calculator {
  background: #f8fafc;
  padding: 1.5rem;
  border-radius: 12px;
  border: 1px solid var(--borde);
}

.tco-comparison {
  margin: 2rem 0;
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.comparison-item {
  background: #fff;
  border: 1px solid var(--borde);
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 4px 15px rgba(0,0,0,.08);
}

.comparison-item h4 {
  margin: 0 0 1rem;
  text-align: center;
  font-size: 1.2rem;
}

.cost-breakdown {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.cost-item {
  display: flex;
  justify-content: space-between;
  padding: 0.5rem 0;
  border-bottom: 1px solid #f0f0f0;
}

.cost-item.total {
  border-top: 2px solid var(--azul);
  border-bottom: none;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--azul);
  margin-top: 0.5rem;
}

.savings-highlight {
  background: linear-gradient(135deg, #e8f5e8, #f0f8ff);
  border: 2px solid var(--verde);
  border-radius: 12px;
  padding: 1.5rem;
  text-align: center;
  margin: 1rem 0;
}

.savings-highlight h4 {
  color: var(--verde);
  margin: 0 0 0.5rem;
  font-size: 1.3rem;
}

/* FAQ Section */
.faq-section {
  margin: 2rem 0;
}

.faq-section details {
  background: #fff;
  border: 1px solid var(--borde);
  border-radius: 12px;
  margin-bottom: 1rem;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,.05);
}

.faq-section summary {
  padding: 1.5rem;
  background: linear-gradient(135deg, #f8fafc, #e0f2fe);
  cursor: pointer;
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--azul);
  border-bottom: 1px solid var(--borde);
  transition: background 0.3s ease;
}

.faq-section summary:hover {
  background: linear-gradient(135deg, #e0f2fe, #dbeafe);
}

.faq-section details[open] summary {
  border-bottom: 1px solid var(--borde);
}

.faq-section p {
  padding: 1.5rem;
  margin: 0;
  line-height: 1.6;
  color: #555;
}

/* Responsive fixes */
@media (max-width: 768px) {
  .timeline-item {
    flex-direction: column;
    text-align: center;
  }
  
  .timeline-year {
    margin-right: 0;
    margin-bottom: 1rem;
    align-self: center;
  }
  
  .comparison-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .nav-list a {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
}

/* Fix para iconos que se salen */
.nav-list a {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav-icon {
  font-size: 1.2rem;
  min-width: 1.5rem;
  text-align: center;
  display: inline-block;
  flex-shrink: 0;
}

/* ====== SECCIÓN DE DESCARGAS ====== */
.download-section {
  margin: 2rem 0;
}

.download-card {
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #f8fafc, #e0f2fe);
  border: 2px solid #e0f2fe;
  border-radius: 16px;
  padding: 2rem;
  box-shadow: 0 8px 32px rgba(11,61,145,.1);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.download-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--verde), var(--azul));
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.download-card:hover::before {
  transform: scaleX(1);
}

.download-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(11,61,145,.15);
  border-color: var(--azul);
}

.download-icon {
  font-size: 3rem;
  margin-right: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--azul), var(--verde));
  border-radius: 20px;
  box-shadow: 0 8px 24px rgba(11,61,145,.2);
}

.download-content {
  flex: 1;
}

.download-content h3 {
  margin: 0 0 0.8rem;
  color: var(--azul);
  font-size: 1.4rem;
  font-weight: 700;
}

.download-content p {
  margin: 0 0 1.5rem;
  color: #666;
  line-height: 1.6;
  font-size: 1.05rem;
}

.btn-download {
  background: linear-gradient(135deg, var(--verde), #00d084);
  border-color: var(--verde);
  color: #fff;
  box-shadow: 0 4px 15px rgba(0,168,89,.3);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  text-decoration: none;
  padding: 1rem 2rem;
  border-radius: 12px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.btn-download::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.2), transparent);
  transition: left 0.5s;
}

.btn-download:hover::before {
  left: 100%;
}

.btn-download:hover {
  background: linear-gradient(135deg, #00d084, var(--verde));
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0,168,89,.4);
  color: #fff;
}

.btn-download span {
  font-size: 1.2rem;
}

/* Responsive para descargas */
@media (max-width: 768px) {
  .download-card {
    flex-direction: column;
    text-align: center;
    padding: 1.5rem;
  }
  
  .download-icon {
    margin-right: 0;
    margin-bottom: 1rem;
    min-width: 60px;
    height: 60px;
    font-size: 2rem;
  }
  
  .download-content h3 {
    font-size: 1.2rem;
  }
  
  .download-content p {
    font-size: 1rem;
  }
}