/* ========================================================================
   css/styles.css
   Estilos globales para 3D Solutions
   ======================================================================== */

/* -------------------------------------------------------
   0. Variables de color y tipografía
   ------------------------------------------------------- */
:root {
  /* Colores extraídos del logotipo */
  --color-primario-azul: #004AAD;   /* (0, 74, 173) aproximación */
  --color-primario-rojo: #FF3131;   /* (255, 49, 49) aproximación */
  --color-texto: #333333;
  --color-fondo: #ffffff;
  --color-gris-claro: #f5f5f5;
  --color-gris-medio: #dddddd;

  /* Tipografía */
  --font-principal: 'Montserrat', sans-serif;
  --font-secundaria: 'Roboto', sans-serif;

  /* Transiciones */
  --transition-suave: all 0.4s ease-in-out;
}

/* -------------------------------------------------------
   1. Reset ligero y estilos base
   ------------------------------------------------------- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-principal);
  color: var(--color-texto);
  background-color: var(--color-fondo);
  line-height: 1.6;
}

/* Enlaces */
a {
  text-decoration: none;
  color: var(--color-primario-azul);
  transition: var(--transition-suave);
}
a:hover {
  text-decoration: underline;
}

/* Contenedores */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 0;
}

/* -------------------------------------------------------
   2. Navbar (Header)
   ------------------------------------------------------- */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--color-fondo);
  border-bottom: 1px solid var(--color-gris-medio);
  z-index: 1000;
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.nav-logo img {
  height: 50px;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 2rem;
}

.nav-links li a {
  color: var(--color-texto);
  font-weight: 500;
  transition: var(--transition-suave);
}
.nav-links li a:hover {
  color: var(--color-primario-azul);
}

/* -------------------------------------------------------
   3. Hero / Carrusel principal
   ------------------------------------------------------- */
#hero {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-carousel {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero-carousel img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 1s ease-in-out;
}

.hero-carousel img.active {
  opacity: 1;
}

/* Capa de contenido sobre el carrusel */
.hero-content {
  position: relative;
  z-index: 2;
  color: white;
  text-align: center;
  max-width: 800px;
  padding: 20px;
  background-color: rgba(0, 0, 0, 0.5); /* para legibilidad */
  border-radius: 16px;
}

.hero-content h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  font-family: var(--font-secundaria);
}

.hero-content p {
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
}

.hero-content .btn-primario {
  display: inline-block;
  padding: 1rem 2.5rem;
  font-size: 1.15rem;
  font-weight: 600;
  border-radius: 2rem;
  background: linear-gradient(90deg, var(--color-primario-azul), var(--color-primario-rojo));
  color: #fff;
  text-decoration: none;
  box-shadow: 0 4px 16px rgba(0,74,173,0.08);
  transition: background-position 0.4s, box-shadow 0.3s, color 0.3s;
  background-size: 200% 200%;
  animation: gradientMove 3s ease-in-out infinite;
}

.hero-content .btn-primario:hover {
  background-color: rgba(255,49,49,0.85);
}

/* -------------------------------------------------------
   4. Logos Carrusel (Cinta de marcas)
   ------------------------------------------------------- */
#logos {
  background-color: var(--color-gris-claro);
  padding: 2rem 0;
  overflow: hidden;
}

.logos-container {
  position: relative;
  overflow: hidden;
  width: 100%;
}

.logos-slider {
  display: flex;
  align-items: center;
  gap: 4rem;
  width: max-content;
  animation: scrollLogos 20s linear infinite;
  will-change: transform;
}

.logos-slider img {
  height: 60px;
  object-fit: contain;
  opacity: 0.9;
  transition: opacity 0.3s ease;
}
.logos-slider img:hover {
  opacity: 1;
}

/* Animación continua: desplaza todo el flex container a la izquierda */
@keyframes scrollLogos {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

/* -------------------------------------------------------
   5. Sección de características (Features)
   ------------------------------------------------------- */
#features {
  padding: 3rem 0;
}

.features-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.feature-card {
  background-color: var(--color-fondo);
  border: 1px solid var(--color-gris-medio);
  border-radius: 8px;
  padding: 2rem 1.5rem;
  text-align: center;
  transition: var(--transition-suave);
}
.feature-card:hover {
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.feature-card h3 {
  margin-bottom: 1rem;
  font-size: 1.3rem;
  color: var(--color-primario-azul);
}
.feature-card p {
  font-size: 1rem;
  color: var(--color-texto);
}

/* -------------------------------------------------------
   6. Carrusel de Proyectos en Home
   ------------------------------------------------------- */
#project-carousel {
  padding: 3rem 0;
  background-color: var(--color-gris-claro);
}

.project-carousel-wrapper {
  position: relative;
  width: 100%;
  height: 50vh;
  max-height: 400px;
  overflow: hidden;
}

.project-carousel-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  position: absolute;
  top: 0;
  left: 0;
  transition: opacity 1s ease-in-out;
}

.project-carousel-wrapper img.active {
  opacity: 1;
  z-index: 1;
}

/* Botón de contacto al final */
#contact-link-home {
  text-align: center;
  margin: 2rem 0;
}
#contact-link-home a {
  display: inline-block;
  padding: 1rem 2.5rem;
  font-size: 1.15rem;
  font-weight: 600;
  border-radius: 2rem;
  background: linear-gradient(90deg, var(--color-primario-azul), var(--color-primario-rojo));
  color: #fff;
  text-decoration: none;
  box-shadow: 0 4px 16px rgba(0,74,173,0.08);
  transition: background-position 0.4s, box-shadow 0.3s, color 0.3s;
  background-size: 200% 200%;
  animation: gradientMove 3s ease-in-out infinite;
}
#contact-link-home a:hover {
  background-position: right center;
  color: #fff;
  box-shadow: 0 6px 24px rgba(0,74,173,0.15);
}

/* -------------------------------------------------------
   7. Página de Proyectos (Grid + Descarga de PDF)
   ------------------------------------------------------- */
#proyectos-hero {
  padding: 4rem 0 2rem;
  text-align: center;
}
#proyectos-hero h2 {
  font-size: 2rem;
  color: var(--color-primario-azul);
  margin-bottom: 0.5rem;
}
#proyectos-hero p {
  font-size: 1.1rem;
  color: var(--color-texto);
}

.proyectos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.proyecto-card {
  background-color: var(--color-fondo);
  border: 1px solid var(--color-gris-medio);
  border-radius: 8px;
  overflow: hidden;
  transition: var(--transition-suave);
}
.proyecto-card:hover {
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.proyecto-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}
.proyecto-card .card-body {
  padding: 1rem;
}
.proyecto-card h3 {
  margin-bottom: 0.5rem;
  font-size: 1.2rem;
  color: var(--color-primario-azul);
}
.proyecto-card .btn-descarga {
  display: inline-block;
  margin-top: 0.8rem;
  padding: 0.6rem 1.2rem;
  background-color: var(--color-primario-rojo);
  color: var(--color-fondo);
  border-radius: 4px;
  font-size: 0.95rem;
  transition: var(--transition-suave);
}
.proyecto-card .btn-descarga:hover {
  background-color: rgba(255,49,49,0.85);
}

/* -------------------------------------------------------
   8. Página de Contacto
   ------------------------------------------------------- */
#contacto-hero {
  padding: 4rem 0 2rem;
  text-align: center;
}
#contacto-hero h2 {
  font-size: 2rem;
  color: var(--color-primario-azul);
  margin-bottom: 0.5rem;
}
#contacto-hero p {
  font-size: 1.1rem;
  color: var(--color-texto);
}

.contacto-info {
  margin: 2rem 0;
  list-style: none;
  color: var(--color-texto);
}
.contacto-info li {
  margin-bottom: 0.6rem;
  font-size: 1rem;
}

.contact-form-wrapper {
  max-width: 500px;
  margin: 2rem auto;
}
.contact-form-wrapper label {
  display: block;
  margin-top: 1rem;
  font-weight: 500;
}
.contact-form-wrapper input,
.contact-form-wrapper textarea {
  width: 100%;
  padding: 0.6rem;
  margin-top: 0.4rem;
  border: 1px solid var(--color-gris-medio);
  border-radius: 4px;
  font-family: var(--font-secundaria);
}
.contact-form-wrapper textarea {
  resize: vertical;
}

.contact-form-wrapper button {
  margin-top: 1.2rem;
  padding: 0.8rem 1.5rem;
  background-color: var(--color-primario-azul);
  color: var(--color-fondo);
  border: none;
  border-radius: 5px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-suave);
}
.contact-form-wrapper button:hover {
  background-color: rgba(0,74,173,0.85);
}

/* -------------------------------------------------------
   9. Footer
   ------------------------------------------------------- */
footer {
  background-color: var(--color-primario-azul);
  color: var(--color-fondo);
  text-align: center;
  padding: 1.5rem 0;
  margin-top: 3rem;
}
footer p {
  font-size: 0.9rem;
}

/* -------------------------------------------------------
   10. Media Queries (Responsive)
   ------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-content {
    max-width: 60%;
    left: 5%;
  }
}

@media (max-width: 768px) {
  #hero {
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: auto;
    min-height: 350px;
    padding-top: 80px;
    padding-bottom: 32px;
  }
  .hero-content {
    width: 100%;
    max-width: 95vw;
    margin: 0 auto;
    padding: 16px;
    box-sizing: border-box;
    left: 0;
    right: 0;
    position: relative;
  }
  .hero-carousel {
    min-height: 250px;
  }

  .nav-links {
    position: absolute;
    top: 70px; /* justo debajo del header fijo */
    right: 0;
    background-color: var(--color-fondo);
    width: 200px;
    transform: translateX(100%); /* inicialmente fuera de la pantalla */
    transition: transform 0.3s ease-in-out;
    box-shadow: -2px 2px 8px rgba(0, 0, 0, 0.2);
    border-radius: 0 0 0 8px;
    z-index: 1001;
    display: block; /* <-- Add this to override display: none */
  }
  .nav-links li {
    margin: 1rem 0;
    text-align: center;
  }
  .nav-links li a {
    display: block;
    padding: 0.5rem 1rem;
    color: var(--color-texto);
    font-size: 1rem;
  }

  /* Mostrar el botón hamburguesa */
  .nav-toggle {
    display: flex;
  }

  /* Cuando el <nav> tenga .nav-open, desliza .nav-links dentro del viewport */
  .nav-open .nav-links {
    transform: translateX(0);
  }

  /* Animación “X” del icono hamburguesa */
  .nav-open .hamburger:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
  }
  .nav-open .hamburger:nth-child(2) {
    opacity: 0;
  }
  .nav-open .hamburger:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
  }
}

@media (max-width: 480px) {
  .hero-content h1 {
    font-size: 1.4rem;
  }
  .hero-content p {
    font-size: 0.95rem;
  }
  .hero-content {
    padding: 10px;
    border-radius: 10px;
  }
  .project-carousel-wrapper {
    height: 30vh;
  }
}

/* -------------------------------------------------------
   Botón flotante de WhatsApp (preserva en styles.css)
   ------------------------------------------------------- */
.whatsapp-float {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 9999;
  background-color: #25d366;   /* Verde oficial de WhatsApp */
  border-radius: 50%;
  padding: 10px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.2);
  transition: transform 0.3s ease-in-out;
}

.whatsapp-float:hover {
  transform: scale(1.1);
}

.whatsapp-float img {
  display: block;
  width: 40px;
  height: 40px;
}

/* -------------------------------------------------------
   FOOTER - Secciones de contacto y enlaces
   ------------------------------------------------------- */
footer {
  background-color: var(--color-primario-azul);
  color: var(--color-fondo);
  padding: 2rem 0 1rem;
}

.footer-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
  align-items: flex-start;
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  gap: 2rem;
}

.footer-section {
  flex: 1 1 200px;
}

.footer-section h4 {
  font-family: var(--font-secundaria);
  font-size: 1.2rem;
  margin-bottom: 0.8rem;
  color: var(--color-fondo);
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
  line-height: 1.4;
}

.footer-section ul li a {
  color: var(--color-fondo);
  transition: var(--transition-suave);
}
.footer-section ul li a:hover {
  color: var(--color-gris-claro);
}

/* Línea inferior de derechos reservados */
.footer-bottom {
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: 1rem;
  margin-top: 1rem;
}
.footer-bottom p {
  font-size: 0.9rem;
  color: var(--color-fondo);
}

/* -------------------------------------------------------
   Responsive: en pantallas muy pequeñas, apilar verticalmente
   ------------------------------------------------------- */
@media (max-width: 600px) {
  .footer-container {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .footer-section {
    flex: 1 1 auto;
  }
}

/* -------------------------------------------------------
   Menú hamburguesa responsive
   ------------------------------------------------------- */

/* 1) El botón .nav-toggle se oculta en desktop, se muestra en móvil */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 22px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}
.nav-toggle:focus {
  outline: none;
}
.hamburger {
  display: block;
  width: 100%;
  height: 3px;
  background-color: var(--color-texto);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

/* 2) En móvil (<768px), ocultamos .nav-links fuera del viewport */
@media (max-width: 768px) {
  .nav-links {
    position: absolute;
    top: 70px; /* justo debajo del header fijo */
    right: 0;
    background-color: var(--color-fondo);
    width: 200px;
    transform: translateX(100%); /* inicialmente fuera de la pantalla */
    transition: transform 0.3s ease-in-out;
    box-shadow: -2px 2px 8px rgba(0, 0, 0, 0.2);
    border-radius: 0 0 0 8px;
    z-index: 1001;
    display: block; /* <-- Add this to override display: none */
  }
  .nav-links li {
    margin: 1rem 0;
    text-align: center;
  }
  .nav-links li a {
    display: block;
    padding: 0.5rem 1rem;
    color: var(--color-texto);
    font-size: 1rem;
  }

  /* Mostrar el botón hamburguesa */
  .nav-toggle {
    display: flex;
  }

  /* Cuando el <nav> tenga .nav-open, desliza .nav-links dentro del viewport */
  .nav-open .nav-links {
    transform: translateX(0);
  }

  /* Animación “X” del icono hamburguesa */
  .nav-open .hamburger:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
  }
  .nav-open .hamburger:nth-child(2) {
    opacity: 0;
  }
  .nav-open .hamburger:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
  }
}

/* 3) En pantallas anchas (>768px), mostramos siempre .nav-links en horizontal */
@media (min-width: 769px) {
  .nav-links {
    display: flex;
    gap: 2rem;
    position: static;
    transform: none !important;
    box-shadow: none;
    background: none;
    width: auto;
  }
  .nav-links li {
    margin: 0;
  }
  /* Aseguramos que el botón hamburguesa nunca aparezca en desktop */
  .nav-toggle {
    display: none;
  }
}

/* --- Visual Enhancement: Animated Gradient Button for Engagement --- */
.btn-primario, .btn-descarga, #contact-link-home a {
  background: linear-gradient(90deg, var(--color-primario-azul), var(--color-primario-rojo));
  background-size: 200% 200%;
  animation: gradientMove 3s ease-in-out infinite;
  box-shadow: 0 4px 16px rgba(0,74,173,0.08);
  border: none;
}
.btn-primario:hover, .btn-descarga:hover, #contact-link-home a:hover {
  background-position: right center;
  color: #fff;
  box-shadow: 0 6px 24px rgba(0,74,173,0.15);
}
@keyframes gradientMove {
  0% { background-position: left center; }
  50% { background-position: right center; }
  100% { background-position: left center; }
}

/* --- Visual Enhancement: Card Hover Scale for Project Cards --- */
.proyecto-card {
  transition: transform 0.3s cubic-bezier(.25,.8,.25,1), box-shadow 0.3s;
}
.proyecto-card:hover {
  transform: translateY(-8px) scale(1.03);
  box-shadow: 0 8px 32px rgba(0,74,173,0.12);
}

/* --- Visual Enhancement: Footer Social Icon Hover --- */
.instagram-link .instagram-logo {
  transition: transform 0.3s, filter 0.3s;
}
.instagram-link:hover .instagram-logo {
  transform: scale(1.15) rotate(-8deg);
  filter: brightness(1.2) drop-shadow(0 2px 8px #ff3131cc);
}

/* -------------------------------------------------------
   Estilos para la sección de descarga de catálogo en Home
   ------------------------------------------------------- */
.descarga-catalogo-home {
  text-align: center;
  margin: 2rem 0;
}
.descarga-catalogo-home a {
  display: inline-block;
  padding: 1rem 2.5rem;
  font-size: 1.15rem;
  font-weight: 600;
  border-radius: 2rem;
  background: linear-gradient(90deg, var(--color-primario-azul), var(--color-primario-rojo));
  color: #fff;
  text-decoration: none;
  box-shadow: 0 4px 16px rgba(0,74,173,0.08);
  transition: background-position 0.4s, box-shadow 0.3s, color 0.3s;
  background-size: 200% 200%;
  animation: gradientMove 3s ease-in-out infinite;
}
.descarga-catalogo-home a:hover {
  background-position: right center;
  color: #fff;
  box-shadow: 0 6px 24px rgba(0,74,173,0.15);
}