:root {
  --verde-principal: #1e4620;
  --verde-hover: #153317;
  --verde-suave: #e8f5e9;
  --negro-estudio: #121820;
  --gris-fondo: #f8fafc;
  --gris-tarjeta: #ffffff;
  --gris-texto: #475569;
  --gris-borde: #cbd5e1;

  --fuente-titulos: "Roboto Slab", serif;
  --fuente-cuerpo: "Plus Jakarta Sans", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--fuente-cuerpo);
  background-color: var(--gris-fondo);
  color: var(--negro-estudio);
  line-height: 1.6;
}

.contenedor {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 20px;
}

/* TOPBAR */
.topbar {
  background-color: var(--negro-estudio);
  color: #cbd5e1;
  font-size: 13px;
  padding: 10px 0;
  border-bottom: 1px solid #1e293b;
}

.topbar-flex {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.topbar-link {
  color: #4ade80;
  text-decoration: none;
  font-weight: 600;
}

/* ENCABEZADO */
.encabezado {
  background-color: #ffffff;
  border-bottom: 2px solid var(--verde-principal);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-flex {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
}

.img-logo {
  height: 52px;
  width: auto;
  display: block;
}

.navegacion ul {
  list-style: none;
  display: flex;
  gap: 25px;
  margin: 0;
  padding: 0;
}

.navegacion a {
  text-decoration: none;
  color: var(--negro-estudio);
  font-weight: 600;
  font-size: 14px;
}

.navegacion a:hover {
  color: var(--verde-principal);
}

.btn-login {
  background-color: var(--verde-principal);
  color: #ffffff !important;
  padding: 10px 20px;
  border-radius: 6px;
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  display: inline-block;
}

.btn-login:hover {
  background-color: var(--negro-estudio);
}

/* HERO SECTION */
.hero {
  background-color: var(--negro-estudio);
  color: #ffffff;
  padding: 80px 0 90px 0;
  text-align: center;
  border-bottom: 4px solid var(--verde-principal);
}

.badge-hero {
  background: rgba(74, 222, 128, 0.2);
  color: #4ade80;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  display: inline-block;
}

.hero h1 {
  font-family: var(--fuente-titulos);
  font-size: 40px;
  margin: 20px 0 15px 0;
  color: #ffffff;
}

.hero-subtitulo {
  font-size: 18px;
  color: #cbd5e1;
  max-width: 700px;
  margin: 0 auto 35px auto;
}

.hero-botones {
  display: flex;
  justify-content: center;
  gap: 15px;
}

.btn-principal {
  background-color: var(--verde-principal);
  color: #ffffff !important;
  padding: 14px 30px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 700;
  display: inline-block;
}

.btn-principal:hover {
  background-color: #27592a;
}

.btn-secundario {
  background-color: #ffffff;
  color: var(--negro-estudio) !important;
  padding: 14px 30px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 700;
  display: inline-block;
}

.btn-secundario:hover {
  background-color: #e2e8f0;
}

/* PILARES */
.pilares {
  margin-top: -30px;
  position: relative;
  z-index: 10;
}

.grilla-pilares {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.pilar-card {
  background: #ffffff;
  padding: 25px;
  border-radius: 8px;
  border: 1px solid var(--gris-borde);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  text-align: center;
}

.pilar-icono {
  font-size: 32px;
  margin-bottom: 10px;
}
.pilar-card h3 {
  font-family: var(--fuente-titulos);
  margin: 10px 0;
  color: var(--negro-estudio);
}
.pilar-card p {
  color: var(--gris-texto);
  font-size: 14px;
  margin: 0;
}

/* SERVICIOS */
.servicios-section {
  padding: 70px 0;
}
.encabezado-seccion {
  text-align: center;
  margin-bottom: 40px;
}
.tag-seccion {
  color: var(--verde-principal);
  font-weight: 700;
  font-size: 13px;
  text-transform: uppercase;
}
.titulo-seccion {
  font-family: var(--fuente-titulos);
  font-size: 30px;
  margin: 5px 0 10px 0;
  color: var(--negro-estudio);
}
.subtitulo-seccion {
  color: var(--gris-texto);
  margin: 0;
}

.grilla-servicios {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.tarjeta-servicio {
  background: #ffffff;
  padding: 25px;
  border-radius: 8px;
  border: 1px solid var(--gris-borde);
  border-top: 4px solid var(--verde-principal);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.02);
}

.icono-box {
  font-size: 30px;
  margin-bottom: 15px;
}
.tarjeta-servicio h3 {
  font-family: var(--fuente-titulos);
  font-size: 18px;
  margin: 0 0 10px 0;
  color: var(--negro-estudio);
}
.tarjeta-servicio p {
  color: var(--gris-texto);
  font-size: 14px;
  margin: 0;
}

/* NOSOTROS */
.nosotros-section {
  background: #ffffff;
  padding: 70px 0;
  border-top: 1px solid var(--gris-borde);
  border-bottom: 1px solid var(--gris-borde);
}

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

.nosotros-info h2 {
  font-family: var(--fuente-titulos);
  font-size: 30px;
  margin: 10px 0 20px 0;
  color: var(--negro-estudio);
}

.stat-box {
  background: var(--gris-fondo);
  padding: 20px;
  border-radius: 8px;
  border-left: 4px solid var(--verde-principal);
  margin-bottom: 15px;
}

.stat-box h4 {
  margin: 0 0 5px 0;
  font-family: var(--fuente-titulos);
}
.stat-box p {
  margin: 0;
  font-size: 14px;
  color: var(--gris-texto);
}

/* FAQ ACCORDEÓN */
.faq-section {
  padding: 70px 20px;
}

.faq-lista {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: #ffffff;
  border: 1px solid var(--gris-borde);
  border-radius: 8px;
  margin-bottom: 12px;
  padding: 18px 22px;
}

.faq-item summary {
  font-weight: 600;
  cursor: pointer;
  font-size: 16px;
  color: var(--negro-estudio);
}
.faq-item p {
  margin: 12px 0 0 0;
  color: var(--gris-texto);
  font-size: 14px;
}

/* CONTACTO */
.contacto-section {
  padding: 70px 0;
  background: var(--gris-fondo);
}

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

.formulario-contacto {
  background: #ffffff;
  padding: 30px;
  border-radius: 8px;
  border: 1px solid var(--gris-borde);
}

.campo {
  margin-bottom: 18px;
}
.campo label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
  font-size: 14px;
}

.campo input,
.campo textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--gris-borde);
  border-radius: 6px;
  font-size: 14px;
  font-family: var(--fuente-cuerpo);
}

.btn-enviar {
  width: 100%;
  background-color: var(--verde-principal);
  color: #ffffff;
  padding: 14px;
  border: none;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
}

.btn-enviar:hover {
  background-color: var(--negro-estudio);
}

.info-contacto-card {
  background: var(--negro-estudio);
  color: #ffffff;
  padding: 30px;
  border-radius: 8px;
}

.info-contacto-card h3 {
  font-family: var(--fuente-titulos);
  color: #ffffff;
  margin-top: 0;
  margin-bottom: 20px;
}
.item-info {
  margin-bottom: 18px;
}
.item-info p {
  margin: 5px 0 0 0;
  color: #cbd5e1;
  font-size: 14px;
}

/* FOOTER */
footer {
  background-color: var(--negro-estudio);
  color: #94a3b8;
  padding: 25px 0;
  font-size: 14px;
  border-top: 2px solid var(--verde-principal);
}

.footer-flex {
  display: flex;
  justify-content: space-between;
}

/* BOTÓN FLOTANTE WHATSAPP */
.btn-whatsapp-flotante {
  position: fixed;
  bottom: 25px;
  right: 25px;
  background-color: #25d366;
  color: #ffffff;
  width: 55px;
  height: 55px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
  text-decoration: none;
  z-index: 999;
}

@media (max-width: 768px) {
  .topbar-flex,
  .nav-flex,
  .footer-flex {
    flex-direction: column;
    gap: 10px;
    text-align: center;
  }
  .contacto-grid,
  .nosotros-grid {
    grid-template-columns: 1fr;
  }
  .hero h1 {
    font-size: 28px;
  }
  .hero-botones {
    flex-direction: column;
  }
}