:root {
  --font-main: system-ui, -apple-system, sans-serif;
  --font-display: "Georgia", "Times New Roman", serif;
  --bg-body: #f8f9fa;
  --bg-surface: #ffffff;
  --bg-alt: #e9ecef;
  --text-primary: #111827;
  --text-secondary: #4b5563;
  --text-accent: #0f766e;
  --primary: #0f766e;
  --primary-dark: #0d5e56;
  --secondary: #1e3a8a;
  --accent: #f59e0b;
  --border: #e5e7eb;
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 8px;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --container-w: 1140px;
  --header-height: 70px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-body);
  color: var(--text-secondary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  color: var(--text-primary);
  line-height: 1.2;
  font-weight: 700;
}

h1 { font-size: 2.75rem; letter-spacing: -0.02em; }
h2 { font-size: 2rem; letter-spacing: -0.01em; margin-bottom: 1rem; }
h3 { font-size: 1.5rem; margin-bottom: 0.75rem; }
p { margin-bottom: 1rem; }
a { text-decoration: none; color: inherit; transition: all 0.2s ease; }
img { max-width: 100%; display: block; height: auto; }
ul { list-style: none; }

.contenedor {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.top-bar-wrapper {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar-superior {
  height: var(--header-height);
}

.contenedor-flex {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.enlace-logo {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.nombre-sitio {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--primary);
  letter-spacing: -0.03em;
}

.bajada-sitio {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  margin-top: 2px;
}

.lista-menu {
  display: flex;
  gap: 2rem;
}

.item-menu {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  position: relative;
}

.item-menu:hover {
  color: var(--primary);
}

.item-menu::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background-color: var(--primary);
  transition: width 0.3s;
}

.item-menu:hover::after {
  width: 100%;
}

.nav-trigger-input { display: none; }
.nav-trigger-label { display: none; cursor: pointer; flex-direction: column; gap: 5px; }
.linea { width: 25px; height: 3px; background-color: var(--text-primary); }

.banner-intro {
  padding: 5rem 0;
  background: linear-gradient(135deg, #ffffff 0%, #f3f4f6 100%);
  border-bottom: 1px solid var(--border);
}

.bloque-intro-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
  align-items: center;
}

.intro-mensaje {
  order: 2;
}

.intro-visual {
  order: 1;
}

.img-fluida {
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-sm);
  border: 8px solid #fff;
}

.etiqueta-fecha {
  display: inline-block;
  background-color: #dcfce7;
  color: #166534;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: 99px;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
}

.bajada-hero {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  max-width: 90%;
}

.puntos-clave {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.punto {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 500;
  color: var(--text-primary);
}

.punto i {
  color: var(--primary);
  font-size: 1.2rem;
}

.separador-diagonal {
  height: 20px;
  background: repeating-linear-gradient(45deg, var(--bg-body), var(--bg-body) 10px, var(--border) 10px, var(--border) 11px);
  border-bottom: 1px solid var(--border);
}

.seccion-recomendado {
  padding: 5rem 0;
  background-color: #fff;
}

.cabecera-seccion {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 4rem auto;
}

.tarjeta-destacada {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  background: #fff;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.columna-info {
  padding: 3rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.columna-imagen {
  position: relative;
  background-color: var(--bg-alt);
}

.img-destacada {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.rating {
  color: var(--accent);
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.boton-accion {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: var(--secondary);
  color: #fff;
  font-weight: 600;
  padding: 1rem 2rem;
  border-radius: var(--radius-sm);
  margin-top: 1.5rem;
  align-self: flex-start;
  box-shadow: var(--shadow-md);
}

.boton-accion:hover {
  background-color: #172554;
  transform: translateY(-2px);
}

.seccion-metodologia {
  padding: 5rem 0;
  background-color: var(--bg-body);
}

.titulo-izquierda {
  margin-bottom: 3rem;
  border-left: 4px solid var(--primary);
  padding-left: 1.5rem;
}

.grilla-criterios {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.item-criterio {
  background: var(--bg-surface);
  padding: 2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: transform 0.2s;
}

.item-criterio:hover {
  border-color: var(--primary);
  transform: translateY(-5px);
}

.icono-criterio {
  width: 50px;
  height: 50px;
  background-color: #f0fdfa;
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
  border-radius: var(--radius-sm);
}

.seccion-quienes-somos {
  padding: 5rem 0;
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.contenedor-texto-nosotros {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.bajada-nosotros {
  font-size: 1.25rem;
  font-family: var(--font-display);
  color: var(--text-primary);
  grid-column: 1 / -1;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 2rem;
}

.bloque-texto {
  font-size: 1rem;
  color: var(--text-secondary);
}

.galeria-nosotros {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.galeria-nosotros img {
  border-radius: var(--radius-sm);
  filter: grayscale(100%);
  transition: filter 0.3s;
}

.galeria-nosotros img:hover {
  filter: grayscale(0%);
}

.seccion-testimonios {
  padding: 4rem 0;
  background-color: #1e3a8a;
  color: #fff;
}

.encabezado-simple h2 {
  color: #fff;
  text-align: center;
  margin-bottom: 3rem;
}

.carrusel-testimonios {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.tarjeta-testimonio {
  background: rgba(255, 255, 255, 0.1);
  padding: 2rem;
  border-radius: var(--radius-md);
  backdrop-filter: blur(5px);
}

.tarjeta-testimonio blockquote {
  font-style: italic;
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
  line-height: 1.5;
}

.tarjeta-testimonio cite {
  font-size: 0.85rem;
  font-weight: 700;
  color: #93c5fd;
  text-transform: uppercase;
  font-style: normal;
}

.seccion-valor {
  padding: 0;
}

.flex-invertido {
  display: flex;
  flex-direction: row-reverse;
  max-width: 100%;
  padding: 0;
  margin: 0;
}

.contenido-valor {
  flex: 1;
  padding: 5rem;
  background-color: var(--bg-surface);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.imagen-valor {
  flex: 1;
}

.imagen-valor img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.seccion-aviso-legal {
  padding: 4rem 0;
  background-color: var(--bg-alt);
}

.alerta-responsable {
  background-color: var(--bg-surface);
  border-left: 5px solid #ef4444;
  padding: 2rem;
  display: flex;
  gap: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.icono-alerta {
  font-size: 2rem;
  color: #ef4444;
}

.texto-alerta h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: #991b1b;
}

.texto-alerta p {
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

.negrita {
  font-weight: 700;
}

.pie-pagina {
  background-color: #111827;
  color: #9ca3af;
  padding: 4rem 0;
  font-size: 0.9rem;
}

.grid-footer {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.brand-footer {
  display: block;
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: #fff;
  margin-bottom: 1rem;
}

.columna-enlaces {
  display: flex;
  gap: 1.5rem;
}

.columna-enlaces a {
  color: #d1d5db;
  font-weight: 500;
}

.columna-enlaces a:hover {
  color: #fff;
  text-decoration: underline;
}

@media (max-width: 900px) {
  .bloque-intro-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2rem;
  }
  
  .intro-mensaje { order: 1; }
  .intro-visual { order: 2; margin: 0 auto; max-width: 500px; }
  
  .puntos-clave {
    align-items: center;
  }

  .tarjeta-destacada {
    grid-template-columns: 1fr;
  }

  .columna-imagen {
    height: 300px;
    order: -1;
  }

  .contenedor-texto-nosotros {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .flex-invertido {
    flex-direction: column;
  }
  
  .contenido-valor {
    padding: 3rem 1.5rem;
  }

  .carrusel-testimonios {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-trigger-label { display: flex; }
  
  .navegacion-principal {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border);
    padding: 1rem;
    display: none;
    box-shadow: var(--shadow-md);
  }

  .nav-trigger-input:checked ~ .navegacion-principal {
    display: block;
  }

  .lista-menu {
    flex-direction: column;
    gap: 1rem;
    align-items: center;
  }

  .grid-footer {
    flex-direction: column;
    gap: 2rem;
    text-align: center;
    align-items: center;
  }

  .columna-enlaces {
    flex-direction: column;
    gap: 0.75rem;
  }
  
  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
}