/* ==========================================================================
   1. VARIABLES Y RESET
   ========================================================================== */
:root {
  --bg: #f8f9fa;
  --card: #ffffff;
  --ink: #1B365D; /* Azul marino profundo basado en tu PDF */
  --text: #333333;
  --muted: #6c757d;
  --line: #e9ecef;
  --accent: #28a745; /* El verde corporativo */
  --accent-hover: #218838;
}

/* Clase para forzar texto en azul marino si se necesita en párrafos */
.texto-azul {
  color: var(--ink);
  font-weight: 800;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6; /* Ligeramente más espaciado para mejor lectura */
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s ease;
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ==========================================================================
   2. NAVEGACIÓN (HEADER)
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.95); /* Header más blanco para resaltar logo */
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 2px 10px rgba(0,0,0,0.02); /* Sombra muy sutil */
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 0;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 260px;
}

.brand-logo {
  width: auto; /* Permite que el ancho sea dinámico */
  height: 48px; /* Controla la altura para que encaje perfecto en el menú */
  object-fit: contain;
}

.brand-name {
  display: block;
  font-weight: 900;
  color: var(--ink);
  font-size: 1.1rem;
}

.brand-tagline {
  display: block;
  font-size: 12px;
  color: var(--muted);
}

.nav {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-left: auto;
}

.nav a {
  font-size: 14px;
  padding: 8px 12px;
  border-radius: 8px;
  font-weight: 500;
  color: var(--ink);
}

.nav a:hover {
  color: var(--accent);
}

.nav a.active {
  background: #fff;
  border: 1px solid var(--line);
  color: var(--ink); /* Asegura que el texto se lea en los enlaces normales */
}



/* Fuerza absoluta para que el botón de la barra de navegación siempre sea verde */
.nav a.btn, 
.nav a.btn.active, 
.nav a.btn:hover {
    background-color: var(--accent) !important;
    color: #ffffff !important;
    border-color: var(--accent) !important;
}

.nav-toggle {
  display: none;
  margin-left: auto;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 8px;
  padding: 8px 12px;
  cursor: pointer;
}

/* ==========================================================================
   3. BOTONES
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border-radius: 8px; /* Bordes un poco menos redondeados, más "industrial" */
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 6px rgba(40, 167, 69, 0.2); /* Sombra verde sutil */
}

.btn:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(40, 167, 69, 0.3);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 14px;
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 2px solid var(--ink);
  box-shadow: none;
}

.btn-ghost:hover {
  background: var(--ink);
  color: #fff;
  transform: translateY(-2px);
}

/* ==========================================================================
   4. TIPOGRAFÍA GENERAL Y SECCIONES
   ========================================================================== */
h1, h2, h3 {
  color: var(--ink);
  font-weight: 800;
}

h1 {
  font-size: 48px; /* Un poco más grande */
  line-height: 1.1;
  margin: 16px 0;
}

h2 {
  font-size: 32px;
  margin: 0 0 16px;
}

.lead {
  font-size: 18px;
  color: #4a4a4a;
  max-width: 65ch;
  margin-bottom: 24px;
}

.muted {
  color: var(--muted);
}

.section {
  padding: 80px 0; /* Más respiro entre secciones */
}

.section.alt {
  background: #ffffff;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-lead {
  margin: 0 0 40px;
  max-width: 78ch;
  font-size: 18px;
  color: var(--muted);
}

/* ==========================================================================
   5. COMPONENTES ESPECÍFICOS (Hero, Cards, Trust)
   ========================================================================== */
.hero {
  padding: 60px 0 40px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}

.pill {
  display: inline-block;
  font-size: 12px;
  font-weight: 800;
  color: var(--accent); /* Píldora en verde para destacar */
  background: rgba(40, 167, 69, 0.1);
  border: 1px solid rgba(40, 167, 69, 0.2);
  padding: 6px 12px;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.cta-row {
  display: flex;
  gap: 16px;
  margin-top: 24px;
  flex-wrap: wrap;
}

.hero-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 12px 30px rgba(15, 32, 54, 0.08); /* Sombra azul oscura sutil */
}

.hero-card h3 {
  margin: 0 0 16px;
  font-size: 20px;
}

.checklist {
  margin: 0;
  padding-left: 20px;
  color: var(--text);
}

.checklist li {
  margin-bottom: 8px;
}

.card-note {
  margin-top: 20px;
  padding: 16px;
  border-radius: 8px;
  background: rgba(15, 32, 54, 0.03); /* Fondo gris azulado muy suave */
  border-left: 4px solid var(--accent); /* Detalle verde */
  font-size: 14px;
}

.trust {
  padding: 40px 0;
  background: #ffffff;
  border-bottom: 1px solid var(--line);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.trust-item {
  text-align: center;
  padding: 20px;
}

.kpi {
  font-size: 32px;
  font-weight: 900;
  color: var(--ink);
  margin-bottom: 8px;
}

.kpi-label {
  font-size: 14px;
  color: var(--muted);
  font-weight: 500;
}

.logo-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 3px;
}

/* Ajuste en styles.css para la caja contenedora */
.logo-box {
  background: #ffffff !important; /* Fuerza el fondo blanco puro en la caja */
  border: 1px solid var(--line);
  border-radius: 12px;
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 15px; /* El margen va en la caja, así la imagen usa todo el espacio restante */
  overflow: hidden;
}

.logo-box img {
  width: 100%;
  height: 100%;
  object-fit: contain; /* Mantiene la proporción */
  /* Eliminamos el mix-blend-mode para evitar el bug en celulares */
}

/* Regresa el color original al pasar el cursor */
.logo-box:hover img {
  filter: grayscale(0%);
  transform: scale(1.05);
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 24px;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

.card:hover {
  box-shadow: 0 10px 25px rgba(0,0,0,0.05);
  border-color: #ced4da;
  transform: translateY(-5px);
}

.card h3 {
  margin: 0 0 12px;
  font-size: 22px;
}

.card p {
  color: var(--muted);
  margin-bottom: 20px;
}

.card ul {
  padding-left: 20px;
  margin-bottom: 24px;
  flex-grow: 1;
}

.card .link {
  color: var(--accent);
  font-weight: 700;
  margin-top: auto;
}

.card .link:hover {
  color: var(--ink);
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.step {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 24px;
}

.step-n {
  width: 40px;
  height: 40px;
  border-radius: 50%; /* Círculo completo */
  background: rgba(40, 167, 69, 0.1);
  color: var(--accent); /* Número en verde */
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 18px;
  margin-bottom: 16px;
}

/* ==========================================================================
   6. CALL TO ACTION (CTA) FINAL
   ========================================================================== */
.cta {
  padding: 60px 0;
  background: var(--ink); /* Fondo azul oscuro */
  color: #fff;
}

.cta h2 {
  color: #fff; /* Asegurar que el título sea blanco aquí */
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.cta .muted {
  color: rgba(255, 255, 255, 0.7);
}

.cta-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.cta .btn {
  background: var(--accent); /* Botón verde sobre fondo azul, excelente contraste */
  color: #fff;
}

.cta .btn:hover {
  background: var(--accent-hover);
}

.cta .btn-ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.5);
}

.cta .btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #fff;
}

/* ==========================================================================
   7. FOOTER
   ========================================================================== */
.footer {
  padding: 60px 0 30px;
  background: #ffffff;
  border-top: 1px solid var(--line);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
}

.footer a {
  display: block;
  color: var(--muted);
  margin: 8px 0;
  transition: color 0.2s;
}

.footer a:hover {
  color: var(--accent);
}

.footer-title {
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 16px;
  text-transform: uppercase;
  font-size: 14px;
  letter-spacing: 1px;
}

.footer-brand {
  font-weight: 900;
  color: var(--ink);
  font-size: 18px;
  margin-bottom: 8px;
}

.footer-bottom {
  border-top: 1px solid var(--line);
  padding-top: 24px;
  margin-top: 40px;
  text-align: center;
  font-size: 14px;
}

/* ==========================================================================
   8. PÁGINAS INTERNAS (Páginas de servicio, Proyectos, Contacto)
   ========================================================================== */
.page {
  padding-top: 20px;
}

.page-hero {
  padding: 60px 0 40px;
}

.page-hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.media-placeholder {
  background: #f8f9fa;
  border: 2px dashed #ced4da;
  border-radius: 12px;
  min-height: 350px;
  display: flex;
  align-items: center;
  justify-content: center;
  
}

.media-label {
  color: #adb5bd;
  text-align: center;
  font-weight: 700;
  font-size: 18px;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.panel {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 30px;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.gallery-item {
  background: #f8f9fa;
  border: 1px solid var(--line);
  border-radius: 12px;
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #adb5bd;
  font-weight: 700;
  transition: transform 0.3s ease;
}

.gallery-item:hover {
  transform: scale(1.02);
}

/* Formularios */
.form {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 32px;
  max-width: 780px;
  margin: 0 auto;
  box-shadow: 0 10px 30px rgba(0,0,0,0.03);
}

.form label {
  display: block;
  font-weight: 700;
  color: var(--ink);
  margin: 16px 0 8px;
}

.form input, .form select, .form textarea {
  width: 100%;
  padding: 14px;
  border-radius: 8px;
  border: 1px solid #ced4da;
  font-size: 16px;
  font-family: inherit;
  transition: border-color 0.2s;
}

.form input:focus, .form select:focus, .form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(40, 167, 69, 0.1);
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* ==========================================================================
   9. RESPONSIVE (Móviles y Tablets)
   ========================================================================== */
@media (max-width: 920px) {
  .hero-grid, .page-hero-grid {
    grid-template-columns: 1fr;
  }
  
  h1 {
    font-size: 36px;
  }
  
  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .cards {
    grid-template-columns: 1fr;
  }
  
  .steps {
    grid-template-columns: 1fr; /* Pasos en una sola columna en móvil */
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .logo-strip {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .grid-2 {
    grid-template-columns: 1fr;
  }
  
  .two-col {
    grid-template-columns: 1fr;
  }
  
  .gallery {
    grid-template-columns: 1fr 1fr; /* Galería 2 columnas en tablet */
  }

  .nav {
    display: none;
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    padding-bottom: 16px;
    margin-top: 10px;
  }
  
  .nav a {
    padding: 12px;
    text-align: center;
    border-radius: 4px;
  }
  
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
  }
}

@media (max-width: 480px) {
  .gallery {
    grid-template-columns: 1fr; /* Galería 1 columna en móvil pequeño */
  }
  
  .trust-grid {
    grid-template-columns: 1fr; /* Confianza 1 columna */
  }
}

/* Resalta la etiqueta superior "Premium · Industrial..." */
.pill {
  color: var(--accent);
  border: 1px solid var(--accent);
  background: rgba(40, 167, 69, 0.05); /* Fondo verde muy tenue */
}

/* Destaca los números grandes de los indicadores (0.5 MWp, Industrial, etc.) */
.kpi {
  color: var(--accent);
}

/* Clase de apoyo: úsala en tu HTML para resaltar palabras. 
   Ejemplo: <p>Reduzca <span class="texto-verde">costos de energía</span>...</p> */
.texto-verde {
  color: var(--accent);
  font-weight: 800;
}