:root {
  --color-primary: #0F77BF;
  --color-primary-dark: #0A578D;
  --color-navy: #1B2B48;
  --color-dark: #111B2B;
  --color-light-bg: #F4F6F9;
  --color-white: #FFFFFF;
  --color-text: #333333;
  --color-text-muted: #666666;
  --color-wa: #25D366;
  --font-title: 'Poppins', sans-serif;
  --font-body: 'Roboto', sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: #FFFFFF;
  line-height: 1.6;
}

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

/* TOPBAR AZUL */
.topbar-replica {
  background: var(--color-primary);
  color: #FFFFFF;
  font-size: 13px;
  padding: 8px 0;
}
.topbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}
.topbar-left {
  display: flex;
  align-items: center;
  gap: 20px;
}
.topbar-left a {
  color: #FFFFFF;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
}
.topbar-right {
  display: flex;
  align-items: center;
  gap: 14px;
}
.topbar-right a {
  color: #FFFFFF;
  display: flex;
  align-items: center;
  transition: opacity 0.2s;
}
.topbar-right a:hover { opacity: 0.8; }

/* HEADER BLANCO */
.header-replica {
  background: #FFFFFF;
  border-bottom: 1px solid #EEEEEE;
  padding: 10px 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}
.header-inner-replica {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.logo-img {
  max-height: 70px;
  width: auto;
  display: block;
}
.nav-links-replica {
  display: flex;
  gap: 28px;
}
.nav-links-replica a {
  color: #222222;
  text-decoration: none;
  font-family: var(--font-title);
  font-size: 14px;
  font-weight: 600;
  transition: color 0.2s;
}
.nav-links-replica a:hover {
  color: var(--color-primary);
}
.btn-contacto-replica {
  background: var(--color-primary);
  color: #FFFFFF;
  text-decoration: none;
  font-family: var(--font-title);
  font-size: 13px;
  font-weight: 700;
  padding: 10px 22px;
  border-radius: 4px;
  transition: background 0.2s;
}
.btn-contacto-replica:hover {
  background: var(--color-primary-dark);
}

/* HERO CON IMAGEN DE FONDO */
.hero-replica {
  position: relative;
  min-height: 540px;
  background-image: url('../images/hero-bg.webp');
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 20px;
}
.hero-overlay-replica {
  position: absolute;
  inset: 0;
  background: rgba(11, 27, 43, 0.72);
}
.hero-content-replica {
  position: relative;
  z-index: 2;
  max-width: 850px;
  color: #FFFFFF;
}
.hero-title-replica {
  font-family: var(--font-title);
  font-size: 42px;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 18px;
  text-transform: none;
}
.hero-desc-replica {
  font-size: 18px;
  line-height: 1.6;
  margin-bottom: 28px;
  color: #E2E8F0;
}
.hero-btn-replica {
  display: inline-block;
  background: var(--color-primary);
  color: #FFFFFF;
  text-decoration: none;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 15px;
  padding: 14px 34px;
  border-radius: 4px;
  transition: background 0.2s, transform 0.2s;
}
.hero-btn-replica:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
}

/* SECCIONES TÍTULOS */
.section-title-replica {
  font-family: var(--font-title);
  font-size: 30px;
  font-weight: 800;
  text-align: center;
  color: var(--color-navy);
  margin-bottom: 40px;
  letter-spacing: 0.5px;
}
.section-title-replica.white {
  color: #FFFFFF;
}

/* SERVICIOS CLÁSICOS (4 COLUMNAS) */
.servicios-section-replica {
  background: var(--color-light-bg);
  padding: 80px 0;
}
.servicios-grid-replica {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
}
.servicio-card-replica {
  background: #FFFFFF;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0,0,0,0.06);
  display: flex;
  flex-direction: column;
}
.servicio-img-wrap img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}
.servicio-body-replica {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.servicio-body-replica h3 {
  font-family: var(--font-title);
  font-size: 17px;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 12px;
  line-height: 1.35;
}
.servicio-body-replica p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.55;
  margin-bottom: 18px;
  flex: 1;
}
.card-btn-replica {
  display: block;
  text-align: center;
  background: var(--color-primary);
  color: #FFFFFF;
  text-decoration: none;
  font-size: 13px;
  font-weight: 700;
  padding: 10px;
  border-radius: 4px;
}
.card-btn-replica:hover {
  background: var(--color-primary-dark);
}

/* PROYECTOS (FONDO OSCURO) */
.proyectos-section-replica {
  background: var(--color-dark);
  padding: 80px 0;
}
.proyectos-grid-replica {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}
.proyecto-item-replica {
  position: relative;
  border-radius: 6px;
  overflow: hidden;
  aspect-ratio: 4 / 3;
}
.proyecto-item-replica img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.proyecto-item-replica:hover img {
  transform: scale(1.08);
}
.proyecto-info-replica {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 20, 35, 0.92) 0%, rgba(10, 20, 35, 0.2) 60%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 16px;
  color: #FFFFFF;
}
.proyecto-info-replica h3 {
  font-family: var(--font-title);
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 4px;
}
.proyecto-info-replica span {
  font-size: 12px;
  color: #A0AEC0;
}

/* PRODUCTOS CONTINUO */
.productos-section-replica {
  padding: 80px 0;
}
.productos-subtitle-replica {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 16px;
  margin-top: -24px;
  margin-bottom: 48px;
}
.cat-block-replica {
  margin-bottom: 50px;
  border-bottom: 1px solid #EEEEEE;
  padding-bottom: 40px;
}
.cat-title-replica {
  font-family: var(--font-title);
  font-size: 20px;
  font-weight: 800;
  color: var(--color-primary);
  display: inline-block;
  margin-right: 12px;
}
.cat-badge-replica {
  font-size: 11px;
  text-transform: uppercase;
  background: #E2E8F0;
  color: #475569;
  padding: 3px 8px;
  border-radius: 4px;
  font-weight: 700;
}
.items-grid-replica {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 20px;
  margin-top: 20px;
}
.prod-card-replica {
  border: 1px solid #E2E8F0;
  border-radius: 6px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  text-align: center;
  background: #FFFFFF;
  transition: transform 0.2s, box-shadow 0.2s;
}
.prod-card-replica:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(0,0,0,0.08);
  border-color: var(--color-primary);
}
.prod-img-wrap img {
  width: 100%;
  height: 180px;
  object-fit: contain;
  margin-bottom: 12px;
}
.prod-card-replica h4 {
  font-size: 14px;
  font-weight: 600;
  color: #1E293B;
  margin-bottom: 14px;
  flex: 1;
  line-height: 1.4;
}
.prod-wa-btn {
  background: var(--color-wa);
  color: #FFFFFF;
  text-decoration: none;
  font-size: 12px;
  font-weight: 700;
  padding: 8px 14px;
  border-radius: 999px;
  display: inline-block;
  transition: background 0.2s;
}
.prod-wa-btn:hover {
  background: #1EBE57;
}

/* FOOTER CLÁSICO */
.footer-replica {
  background: var(--color-dark);
  color: #A0AEC0;
  padding: 60px 0 20px;
  font-size: 14px;
}
.footer-grid-replica {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}
.footer-logo {
  max-width: 180px;
  height: auto;
  margin-bottom: 16px;
  display: block;
}
.footer-col h4 {
  font-family: var(--font-title);
  color: #FFFFFF;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 18px;
}
.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-col a {
  color: #A0AEC0;
  text-decoration: none;
  transition: color 0.2s;
}
.footer-col a:hover {
  color: var(--color-primary);
}
.footer-bottom-replica {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 20px;
  text-align: center;
  font-size: 12px;
}

/* WHATSAPP FLOAT */
.wa-float-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 58px;
  height: 58px;
  background: var(--color-wa);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.4);
  z-index: 9999;
  animation: waPulse 2s infinite;
}
@keyframes waPulse {
  0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.6); }
  70% { transform: scale(1.05); box-shadow: 0 0 0 16px rgba(37, 211, 102, 0); }
  100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

@media (max-width: 768px) {
  .hero-title-replica { font-size: 28px; }
  .topbar-replica, .nav-links-replica { display: none; }
  .servicios-grid-replica, .items-grid-replica { grid-template-columns: 1fr; }
}