/* ==============================
   Variables de Color
   ============================== */
:root {
  --amarillo-hydroacero: #ffc107;
  --negro-hydroacero: #000000;
  --blanco-hydroacero: #ffffff;
  --fondo-oscuro: #121212;
  --gris-oscuro: #1e1e1e;
}

/* ==============================
   Reset & Global
   ============================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: 'Poppins', sans-serif;
  background-color: var(--blanco-hydroacero);
  color: var(--negro-hydroacero);
  overflow-x: hidden;
}

/* ==============================
   Navbar
   ============================== */
.navbar {
  background-color: var(--amarillo-hydroacero) !important;
  padding: 0.5rem 1rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}
.navbar-brand {
  color: var(--negro-hydroacero) !important;
  font-size: 1.8rem;
}
.nav-link {
  color: var(--negro-hydroacero) !important;
  font-weight: 500;
  margin-left: 1rem;
  transition: background 0.3s, color 0.3s;
}
.nav-link:hover {
  background-color: var(--negro-hydroacero);
  color: var(--amarillo-hydroacero) !important;
  border-radius: 5px;
  padding: 0.4rem 0.6rem;
}
.navbar-toggler {
  border: none;
}
.navbar-toggler i {
  color: var(--negro-hydroacero);
}

/* ==============================
   Banner / Hero
   ============================== */
.banner {
  position: relative;
  height: 100vh;
  background: url('../img/BANNER.png') center center/cover no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
}
.banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background-color: rgba(0,0,0,0.35);
}
.banner-content {
  position: relative;
  text-align: center;
  color: var(--blanco-hydroacero);
  max-width: 800px;
  padding: 1rem;
}
.banner-content h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 1rem;
}
.banner-content p {
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
}
.btn-banner {
  background-color: var(--amarillo-hydroacero);
  color: var(--negro-hydroacero);
  padding: 0.75rem 2rem;
  border: none;
  border-radius: 30px;
  font-weight: 600;
  transition: background 0.3s;
}
.btn-banner:hover {
  background-color: #e0a800;
  color: var(--blanco-hydroacero);
}

/* ==============================
   Servicios
   ============================== */
#servicios {
  background-color: var(--fondo-oscuro);
  color: var(--blanco-hydroacero);
  padding: 4rem 1rem;
}
#servicios h1 {
  color: var(--amarillo-hydroacero);
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 3rem;
}
.caja-servicio {
  background-color: var(--gris-oscuro);
  padding: 2rem;
  border-radius: 10px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.2);
  transition: transform 0.3s ease;
}
.caja-servicio:hover {
  transform: translateY(-8px);
}
.caja-servicio h3 {
  color: var(--amarillo-hydroacero);
  font-size: 1.75rem;
  margin-bottom: 1rem;
}
.caja-servicio hr {
  border: 2px solid var(--amarillo-hydroacero);
  width: 50px;
  margin-bottom: 1rem;
}
.caja-servicio p {
  line-height: 1.6;
}
.caja-servicio img {
  width: 100%;
  margin-top: 1rem;
  border-radius: 8px;
  transition: transform 0.3s ease;
}
.caja-servicio img:hover {
  transform: scale(1.05);
}

/* ==============================
   Redes Sociales – Videos
   ============================== */
.publicidad {
  background-color: var(--fondo-oscuro);
  color: var(--amarillo-hydroacero);
  padding: 4rem 1rem;
  text-align: center;
}
.publicidad h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 2rem;
}
.video-container {
  overflow: hidden;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
  transition: transform 0.3s ease;
}
.video-container:hover {
  transform: scale(1.03);
}
.video-container video {
  width: 100%;
  height: auto;
  display: block;
}

/* ==============================
   Botones de Redes Sociales
   ============================== */
.btn-instagram {
  background-color: #E1306C;
  color: white;
}
.btn-facebook {
  background-color: #1877F2;
  color: white;
}
.btn-tiktok {
  background-color: #000000;
  color: white;
}
.btn-instagram,
.btn-facebook,
.btn-tiktok {
  padding: 0.6rem 1.5rem;
  border-radius: 30px;
  font-weight: 600;
  transition: transform 0.2s ease, opacity 0.2s;
}
.btn-instagram:hover,
.btn-facebook:hover,
.btn-tiktok:hover {
  opacity: 0.85;
  transform: translateY(-3px);
}

/* ==============================
   Quiénes Somos / Misión & Visión
   ============================== */
.quienes-somos {
  background-color: var(--fondo-oscuro);
  color: var(--blanco-hydroacero);
  padding: 4rem 1rem;
}
.quienes-somos .box {
  background-color: var(--gris-oscuro);
  padding: 2rem;
  border-radius: 10px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.2);
  transition: transform 0.3s ease;
}
.quienes-somos .box:hover {
  transform: translateY(-8px);
}
.quienes-somos h3 {
  color: var(--amarillo-hydroacero);
  font-size: 1.75rem;
  margin-bottom: 1rem;
}
.quienes-somos p {
  line-height: 1.6;
}

/* ==============================
   Contacto
   ============================== */
#contacto {
  background-color: var(--fondo-oscuro);
  color: var(--blanco-hydroacero);
  padding: 4rem 1rem;
  text-align: center;
}
#contacto h2 {
  font-size: 2.25rem;
  margin-bottom: 1.5rem;
}
#contacto p {
  margin-bottom: 0.75rem;
}

/* ==============================
   Footer
   ============================== */
.footer {
  background-color: var(--fondo-oscuro);
  color: var(--blanco-hydroacero);
  padding: 2rem 1rem;
  text-align: center;
}
.footer p {
  margin: 0;
}

/* ==============================
   Media Queries (Responsividad)
   ============================== */
@media (max-width: 992px) {
  .banner-content h1 {
    font-size: 2.5rem;
  }
  .banner-content p {
    font-size: 1.1rem;
  }
}

@media (max-width: 768px) {
  .banner-content h1 {
    font-size: 2rem;
  }
  .banner-content p {
    font-size: 1rem;
  }
  .caja-servicio {
    padding: 1.5rem;
  }
  #servicios h1,
  .publicidad h2,
  #contacto h2 {
    font-size: 2rem;
  }
  .navbar-nav .nav-link {
    padding: 0.75rem 0;
    font-size: 1.1rem;
  }
}

@media (max-width: 576px) {
  .btn-banner {
    width: 100%;
  }
  .video-container {
    margin-bottom: 1.5rem;
  }
}