/* Paleta de colores */
:root {
  --color-secundario: green;
}
/* Fuente y reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: 'Poppins', sans-serif;
  color: #333;
  line-height: 1.6;
}
/* Secciones estilos */
.section {
  padding: 5rem 8%;
  text-align: center;
}
.section h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: black;
  letter-spacing: 3px;
}
.section p {
  max-width: 700px;
  margin: auto;
}
/* Header */
header {
  position: fixed;
  width: 100%;
  top: 0;
  left: 0;
  background: rgba(0,0,0,0.8);
  color: white;
  letter-spacing: 2px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 5%;
  z-index: 1000;
}
header .logo {
  font-weight: 700;
  font-size: 1.7rem;
}
header nav ul {
  display: flex;
  list-style: none;
  gap: 1.5rem;
}
/* Estilos para el submenu */
.submenu {
  position: relative;
}
.submenu-items {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background-color: #242424b5; /* color de fondo del submenu */
  padding: 0;
  margin: 0;
  list-style: none;
  border: 1px solid #ccc;
  min-width: 150px;
}
.submenu-items li {
  border-bottom: 1px solid #eee;
}
.submenu-items li:last-child {
  border-bottom: none;
}
.submenu-items li a {
  display: block;
  padding: 10px 15px;
  text-decoration: none;
  color: #fff;
}
.submenu-items li a:hover {
  background-color: #232222;
}
/* Mostrar el submenu al pasar el mouse */
.submenu:hover .submenu-items {
  display: block;
}
header nav a {
  color: white;
  text-decoration: none;
  transition: color 0.3s;
}
header nav a:hover {
  color: green;
}

/* Ocultar el menú en móvil por defecto */
.nav-links {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}
.nav-links li {
  position: relative;
}
.submenu {
  display: none;
  position: absolute;
  background: rgba(253, 253, 253, 0.9);
  top: 100%;
  left: 0;
  box-shadow: 0 2px 5px rgba(0,0,0,0.15);
  list-style: none;
  padding: 0.5rem 0;
  min-width: 160px;
  z-index: 10;
}
.submenu li {
  padding: 0.5rem 1rem;
}
.submenu-item:hover > .submenu {
  display: block;
}
/* Botón hamburguesa */
.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
  z-index: 1100;
}
.hamburger .bar {
  width: 35px;
  height: 6px;
  background-color: #ffffff;
  margin: 4px 0;
  transition: 0.3s;
}

/* Responsive menu hamburguesa */
@media screen and (max-width: 768px) {
  header .logo {
    font-size: 22px;
  }
  .nav-links li a{
    text-transform: uppercase;
    color: #004d40;
    font-weight: 800;
  }
  .hamburger{
    display: flex;
  }
  .nav-links {
    text-decoration: none;
    position: fixed;
    top: 80px; 
    right: -100%;
    height: 35vh;
    width: 200px;
    background-color: rgba(255, 255, 255, 0.553);
    flex-direction: column;
    padding-top: 1rem;
    gap: 2rem;
    transition: right 0.3s ease-in-out;
    box-shadow: 2px 0 5px rgba(0,0,0,1);
  }
  .nav-links.active {
    right: 0;
  }
  /* Submenús en móvil */
  .submenu {
    position: static;
    box-shadow: none;
    padding-left: 1rem;
  }
  .nav-links .submenu li a{
    color: #004d40;
  }
  .submenu-item:hover > .submenu,
  .submenu-item:focus-within > .submenu {
    display: block;
  }
}

/* Hero */
.hero {
  height: 100vh;
  background: url("../img/hero black.jpeg") no-repeat center/cover;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  color: white;
}
.hero .overlay {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.5);
}
.hero-content {
  position: relative;
  z-index: 1;
}
.hero h1  {
  font-size: 4rem;
  letter-spacing: 3px;
}
.hero p {
  font-size: 24px;
  letter-spacing: 2px;
}
/* Cards de servicios / incio */
.servicios-pro {
  padding: 5rem 8%;
  text-align: center;
  /*background: #f9f9f9;*/
}
.servicios-pro h2 {
  font-size: 2.2rem;
  margin-bottom: 3rem;
  color: var(--color-secundario);
}
.servicios-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}
.servicio {
  background: linear-gradient(145deg, #3e9c4b, #f1f1f1);
  border-radius: 25px;
  padding: 2rem;
  box-shadow: 0 8px 25px rgba(0,0,0,0.6);
  transition: transform 0.3s, box-shadow 0.3s;
}
.servicio:hover {
  transform: translateY(-10px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.15);
}
.icono {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: #00a86b;
}

/* --- 360 Recycling --- */
.recycling360 {
  padding: 60px 20px;
  text-align: center;
}
.recycling360 h2 {
  color: var(--color-secundario);
  font-size: 2.2rem;
  margin-bottom: 16px;
  letter-spacing: 2px;
}
.recycling360 p {
  max-width: 820px;
  margin: 0 auto 28px;
  font-size: 1.05rem;
  line-height: 1.6;
}

/* Carrusel núcleo */
.carousel {
  overflow: hidden;
  max-width: 900px;
  margin: 0 auto;
}
.carousel-track {
  display: flex;
  will-change: transform;
  transition: transform 0.5s ease-in-out;
}
.step {
  min-width: 100%; /* 1 slide por vista */
  background: #dbdbdb;
  padding: 40px 22px;
  border-radius: 16px;
  box-shadow: 0 6px 18px rgba(0,0,0,0.08);
}
.step .icon {
  font-size: 2.6rem;
  margin-bottom: 12px;
}
.step h3 {
  font-size: 1.4rem;
  margin-bottom: 8px;
  color: #2c7a4b;
}

/* Controles */
.carousel-controls {
  margin-top: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
}
.carousel-controls button {
  background: #2c7a4b;
  border: none;
  color: #fff;
  font-size: 1.2rem;
  padding: 10px 18px;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.25s;
}
.carousel-controls button:hover {
  background: #256d3c;
}

/* Dots/paginación */
.dots {
  display: flex;
  gap: 8px;
}
.dots button {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  border: none;
  background: #b9e4c6;
  cursor: pointer;
}
.dots button[aria-selected="true"] {
  background: #2c7a43;
  transform: scale(1.15);
}

/* Asegura que nada lo tape (por header fijo) */
#recycling360 { scroll-margin-top: 90px; }


/* Nuestros Servicios Cards 
.servicio h3 {
  font-size: 1.4rem;
  margin-bottom: 0.8rem;
  color: #333;
}
.servicio p {
  font-size: 0.95rem;
  color: #555;
  margin-bottom: 1.5rem;
}
.btn-pro {
  display: inline-block;
  background: #00d084;
  color: white;
  padding: 0.6rem 1.5rem;
  border-radius: 30px;
  text-decoration: none;
  font-weight: 600;
  transition: background 0.3s;
}
.btn-pro:hover {
  background: #008f5a;
}
  
/* Contacto */
#contacto h2 {
  color: var(--color-secundario);
  font-size: 40px;
}
form {
  max-width: 500px;
  margin: auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
form input, form textarea {
  padding: 1rem;
  border-radius: 8px;
  border: 3px solid #139326;
}
form button {
  padding: 1rem;
  border: none;
  background: #00d084;
  color: white;
  border-radius: 8px;
  cursor: pointer;
  font-weight: bold;
}
form button:hover {
  background: #00a86b;
}


/*//////// PAGINA NOSOTROS /////////*/
/* Hero Video */
.hero-video {
  position: relative;
  width: 100%;
  height: 70vh;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.hero-video-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba( 0, 0, 0, 0.7);
  z-index: 2;
}
.hero-video .hero-content {
  position: relative;
  z-index: 3;
  color: #fff;
  max-width: 800px;
  padding: 0 20px;
}
.hero-video h1 {
  font-size: 3rem;
  margin-bottom: 20px;
}
.hero-video p {
  font-size: 1.2rem;
  margin-bottom: 30px;
}
.hero-video .btn {
  display: inline-block;
  padding: 12px 30px;
  background: #2e8b57;
  color: white;
  border-radius: 25px;
  text-decoration: none;
  font-weight: 500;
  transition: background 0.3s;
}
.hero-video .btn:hover {
  background: #246b45;
}

/* Responsive */
@media(max-width:768px){
  .hero-video h1 {
    font-size: 2rem;
  }
  .hero-video p {
    font-size: 1rem;
  }
}


/* Nuestra Empresa */
.historia .container {
  display: flex;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
  padding: 50px 50px;
}
.historia .text {
  flex: 1;
  min-width: 300px;
}
.historia .text h2 {
  color: var(--color-secundario);
  margin-bottom: 20px;
  letter-spacing: 3px;
}
.historia .text p {
  font-size: 1rem;
  color: #555;
}
.historia .text p strong {
  color: black;
}
.historia .image {
  flex: 1;
  min-width: 300px;
}
.section.historia .image img {
  width: 350px;      /* tamaño del círculo */
  height: 350px;     /* mantiene proporción */
  object-fit: cover; /* recorta sin deformar */
  border-radius: 70%; /* círculo perfecto */
  /*border: 4px solid #ddd; /* borde opcional */
  /*box-shadow: 0 4px 10px rgba(0,0,0,0.15);*/
}

/* Cards Mision, Vision, Vaslores*/
.card h3{
  font-size: 25px;
  color: var(--color-secundario);
  padding: 5px;
}
.cards {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
  margin-top: 1rem;
}
.card {
  background: #f9f9f9;
  padding: 1rem;
  border-radius: 10%;
  width: 300px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.5);
  transition: transform 0.3s;
}
.card:hover {
  transform: translateY(-15px);
}

/* Tablets */
@media (max-width: 992px) {
  .historia .container {
    flex-direction: column;
    text-align: center;
    padding: 30px 20px;
  }
  .historia .text h2 {
    font-size: 1.8rem;
  }
  .section.historia .image img {
    width: 280px;
    height: 280px;
  }
  .cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr); /* 2 columnas */
    gap: 1.5rem;
    justify-items: center;
  }
  .card h3 {
    color: var(--color-secundario);
  }
}
/* Móviles */
@media (max-width: 600px) {
  .historia .container {
    gap: 20px;
  }
  .historia .text h2 {
    font-size: 1.5rem;
    letter-spacing: 2px;
  }
  .historia .text p {
    font-size: 0.9rem;
  }
  .section.historia .image img {
    width: 220px;
    height: 220px;
  }
  .cards {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
  }
  .card h3 {
    font-size: 20px;
    color: var(--color-secundario);
  }
}

/* Sección Responsabilidad Ambiental */
/* SECCIÓN IMPACTO */

.impacto {
  padding: 80px 20px;
  background: #f7f7f7;
}

.impacto .container {
  max-width: 1200px;
  margin: auto;
  display: flex;
  align-items: center;
  gap: 50px;
}

/* TEXTO */

.impacto-texto {
  flex: 1;
}

.impacto-texto h2 {
  font-size: 36px;
  margin-bottom: 20px;
}

.impacto-texto p {
  font-size: 16px;
  line-height: 1.7;
  margin-bottom: 15px;
}

/* VIDEO */

.impacto-imagen {
  flex: 1;
}

.impacto-imagen video {
  width: 100%;
  height: auto;
  border-radius: 10px;
  object-fit: cover;
}

/* RESPONSIVE TABLET */

@media (max-width: 992px) {

  .impacto .container {
    flex-direction: column;
    text-align: center;
  }

  .impacto-texto h2 {
    font-size: 30px;
  }

}

/* RESPONSIVE MÓVIL */

@media (max-width: 600px) {

  .impacto {
    padding: 60px 20px;
  }

  .impacto-texto h2 {
    font-size: 26px;
  }

  .impacto-texto p {
    font-size: 15px;
  }

}

/* Responsivo */
@media (max-width: 768px) {
  .section.impacto .container {
    flex-direction: column;
    text-align: center;
  }

  .section.impacto .impacto-texto h2 {
    font-size: 1.6rem;
  }
}


/* Sección Responsabilidad Social & Impacto */
.impacto {
  padding: 80px 50px;
  text-align: center;
}
.impacto h2 {
  color: var(--color-secundario);
  margin-bottom: 20px;
}
.impacto p {
  max-width: 700px;
  margin: 0 auto 50px auto;
  color: #555;
  font-size: 1rem;
}
.impacto-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
}
.impacto-card {
  background: white;
  border-radius: 15px;
  padding: 30px 20px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
  transition: transform 0.3s, box-shadow 0.3s;
}
.impacto-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}
.impacto-card .icon {
  font-size: 3rem;
  margin-bottom: 15px;
}
.impacto-card h3 {
  color: #2e8b57;
  margin-bottom: 10px;
}
.impacto-card p {
  color: #555;
  font-size: 0.95rem;
}

/* Sección Permisos */
.permisos {
  padding: 80px 50px;
  text-align: center;
}
.permisos h2 {
  color: var(--color-secundario);
  margin-bottom: 20px;
}
.permisos p {
  max-width: 700px;
  margin: 0 auto 50px auto;
  color: #555;
  font-size: 1rem;
}
.permisos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 40px;
  justify-content: center;
  max-width: 800px;
  margin: 0 auto;
}
.permiso-card {
  background: #bdbdbd;
  border-radius: 10%;
  padding: 30px 20px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.3);
  transition: transform 0.3s, box-shadow 0.3s;
  text-align: center;
}
.permiso-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}
.permiso-card img {
  width: 100px;
  margin-bottom: 15px;
}
.permiso-card h3 {
  color: var(--color-secundario);
  font-size: 1.5rem;
}


/* Responsive */
@media(max-width:768px){
  .historia .container {
    flex-direction: column-reverse;
  }
}


/*//////// PAGINA DE COMPRAR ////////*/
/* Hero Compras */
.hero-compras {
  position: relative;
  height: 80vh;
  background: url('../img/tarima_termo.jpg') no-repeat center center/cover;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
}
.hero-compras .overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.7);
}
.hero-compras .hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  padding: 20px;
}
.hero-compras h1 {
  font-size: 3rem;
  margin-bottom: 15px;
  text-transform: uppercase;
  letter-spacing: 2px;
}
.hero-compras p {
  font-size: 1.2rem;
  line-height: 1.6;
}
/* Sección Cards Productos */
.productos {
  padding: 60px 20px;
  background: #f9f9f9;
  text-align: center;
}
.productos h2 {
  font-size: 2.5rem;
  margin-bottom: 40px;
  color: var(--color-secundario);
}
.productos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 15px;
}
.producto-card {
  background: #fff;
  padding: 25px;
  border-radius: 45px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.5);
  transition: transform 0.3s ease;
}
.producto-card:hover {
  transform: translateY(-10px);
}
.producto-img img {
  width: 180px;
  height: 180px;
  object-fit: cover;
  border-radius: 50%;
  margin-bottom: 15px;
  border: 4px solid #eee;
}
.producto-card h3 {
  font-size: 1.5rem;
  margin-bottom: 5px;
  color: #222;
}
.producto-card p {
  font-size: 1rem;
  color: #666;
  margin-bottom: 15px;
}
.producto-detalles h4 {
  font-size: 1.1rem;
  margin-bottom: 8px;
  color: #444;
}
.producto-detalles ul {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 0.95rem;
  color: #555;
}
.producto-detalles ul li {
  margin-bottom: 6px;
}


/*/////// PAGINA VENTAS ///////*/
/* Hero Ventas */
.hero-ventas {
  position: relative;
  height: 70vh;
  background: url('https://images.pexels.com/photos/3735232/pexels-photo-3735232.jpeg') no-repeat center center/cover;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
}
.hero-ventas .overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5);
}
.hero-ventas .hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  padding: 20px;
}
.hero-ventas h1 {
  font-size: 3rem;
  margin-bottom: 15px;
  text-transform: uppercase;
  letter-spacing: 2px;
}
.hero-ventas p {
  font-size: 1.2rem;
  line-height: 1.6;
}
/* Materiales en Venta */
.materiales-venta {
  padding: 60px 50px;
  background: #f9f9f9;
  text-align: center;
}
.materiales-venta h2 {
  font-size: 2.5rem;
  margin-bottom: 10px;
  color: var(--color-secundario);
}
.materiales-venta p {
  font-size: 1.1rem;
  margin-bottom: 40px;
  color: #666;
}
.grid-materiales {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 25px;
}
.card {
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0,0,0,0.5);
  transition: transform 0.3s;
}
.card:hover {
  transform: translateY(-5px);
}
.card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}
.card h3 {
  margin: 15px 0 10px;
  font-size: 1.5rem;
  color: #333;
}
.card p {
  padding: 0 15px 20px;
  font-size: 1rem;
  color: #555;
}


/* ///// PAGINA RECICLAJE //////*/
/* Hero Reciclaje */
.hero-reciclaje {
  position: relative;
  width: 100%;
  height: 100vh; /* Ajusta la altura según necesites */
  overflow: hidden;
}
.hero-reciclaje .hero-video {
  position: absolute;
  top: 50%;
  left: 50%;
  min-width: 100%;
  min-height: 100%;
  width: auto;
  height: auto;
  z-index: 0;
  transform: translate(-50%, -50%);
  object-fit: cover;
}
.hero-reciclaje .overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5); /* Ajusta opacidad/color del overlay */
  z-index: 1;
}
.hero-reciclaje .hero-content {
  position: relative;
  z-index: 2;
  color: #fff;
  text-align: center;
  top: 50%;
  transform: translateY(-50%);
  padding: 0 20px;
}
.hero-reciclaje h1 {
  font-size: 3rem;
  margin-bottom: 15px;
  text-transform: uppercase;
  letter-spacing: 2px;
}
.hero-reciclaje p {
  font-size: 1.5rem;
  line-height: 1.6;
}

/* Servicios Maquila */
/* Contenedor principal */
.servicios-maquila {
  padding: 60px 20px;
  text-align: center;
  font-family: 'Arial', sans-serif;
}
.servicios-maquila h2 {
  font-size: 2.5rem;
  margin-bottom: 15px;
  color: var(--color-secundario);
}
.servicios-maquila p {
  font-size: 1.1rem;
  color: #555;
  max-width: 700px;
  margin: 0 auto 40px auto;
  line-height: 1.6;
}
/* Grid de servicios */
.grid-servicios {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  align-items: stretch;
}
/* Card individual */
.servicio-card {
  background-color: #fff;
  border-radius: 12px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.3);
  padding: 30px 20px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.servicio-card img {
  width: 200px;
  height: 200px;
  object-fit: contain;
  margin-bottom: 20px;
}
.servicio-card h3 {
  font-size: 1.5rem;
  margin-bottom: 15px;
  color: #111111;
}
.servicio-card p {
  font-size: 1rem;
  color: #666;
  line-height: 1.5;
}
/* Efecto hover */
.servicio-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

/* Responsive */
@media (max-width: 768px) {
  .servicios-maquila h2 {
    font-size: 2rem;
  }

  .servicios-maquila p {
    font-size: 1rem;
  }
}


/*///////// PAGINA CONTACTO ////////*/
/* Estilos formulario reciclaje */
.form-contacto {
  padding: 110px 20px;
  max-width: 800px;
  margin: 0 auto;
  border-radius: 12px;
  text-align: center;
}
.form-contacto h2 {
  color: var(--color-secundario);
  font-size: 2.4rem;
  margin-bottom: 10px;
}
.form-contacto p {
  color: #555;
  margin-bottom: 30px;
}
.form-contacto input,
.form-contacto select,
.form-contacto textarea {
  width: 100%;
  padding: 12px;
  margin-bottom: 15px;
  border-radius: 8px;
  border: 3px solid #2f9426;
  font-size: 1rem;
  box-sizing: border-box;
}
.form-contacto button {
  padding: 15px 25px;
  font-size: 1.1rem;
  background: #368138;
  color: #fff;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.3s;
}
.form-contacto button:hover {
  background: #45a049;
}
/* Contenedor flotante */
.whatsapp-float-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}
/* Botón principal */
.whatsapp-main {
  width: 60px;
  height: 60px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 6px rgba(0,0,0,0.3);
  cursor: pointer;
  transition: transform 0.2s;
}
.whatsapp-main:hover {
  transform: scale(1.1);
}
.whatsapp-main img {
  width: 35px;
  height: 35px;
}
/* Opciones desplegables */
.whatsapp-options {
  display: none; /* Oculto por defecto */
  flex-direction: column;
  margin-bottom: 10px;
}
.whatsapp-options a {
  background: #128c7e;
  color: #fff;
  padding: 10px 15px;
  border-radius: 8px;
  text-decoration: none;
  margin-top: 8px;
  font-weight: bold;
  box-shadow: 0 2px 4px rgba(0,0,0,0.3);
  transition: background 0.3s;
}
.whatsapp-options a:hover {
  background: #075e54;
}
/* Footer */
footer {
  background: #111;
  color: white;
  text-align: center;
  padding: 2rem;
}



/* Responsive */
@media (max-width: 768px) {
  .cards { flex-direction: column; }
  header nav ul { flex-direction: column; background: #000; padding: 1rem; }
}