/* ===================================================
   GCH Tecnología - Estilo Profesional Azul / Dorado
   Incluye botón flotante de WhatsApp
   =================================================== */

:root {
    --azul-oscuro: #003f7f;
    --azul-medio: #0073b1;
    --azul-claro: #3ca0e0;
    --blanco: #ffffff;
    --gris-claro: #f8f9fa;
    --gris: #555;
    --dorado: #d4af37;
    --verde-whatsapp: #25d366;
}

/* ===== Reset General ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}



/* ===== Contenedor ===== */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

/* ===== Header ===== */
header {
    background-color: var(--blanco);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo {
    width: 150px;       /* más grande */
    height: auto;
    filter: drop-shadow(0 2px 3px rgba(0,0,0,0.2)); /* mejora el contraste */
}


.nav-menu {
    list-style: none;
    display: flex;
    gap: 30px;
}

.nav-menu a {
    text-decoration: none;
    color: var(--azul-oscuro);
    font-weight: 500;
    transition: color 0.3s;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--azul-medio);
}

/* --- WhatsApp en el encabezado --- */
.whatsapp-header {
    display: flex;
    align-items: center;
    gap: 8px;
    background-color: #25D366;
    color: white;
    padding: 8px 14px;
    border-radius: 20px;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.whatsapp-header img {
    width: 22px;
    height: 22px;
}

.whatsapp-header:hover {
    background-color: #1ebe5d;
    transform: scale(1.05);
}


/* ===== Hero (Inicio) ===== */
.hero {
    background: linear-gradient(120deg, var(--azul-medio), var(--azul-claro));
    color: var(--blanco);
    padding: 120px 0;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 50px;
}

.hero-content h1 {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 1.1rem;
    margin-bottom: 25px;
}

.btn {
    display: inline-block;
    background-color: var(--dorado);
    color: var(--blanco);
    padding: 12px 30px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
}

.btn:hover {
    background-color: var(--azul-oscuro);
    transform: translateY(-3px);
}

/* ===== Secciones ===== */
section {
    padding: 80px 0;
}

.section-title h2 {
    text-align: center;
    color: var(--azul-oscuro);
    font-size: 2rem;
    margin-bottom: 40px;
    position: relative;
}

.section-title h2::after {
    content: '';
    position: absolute;
    width: 80px;
    height: 3px;
    background-color: var(--dorado);
    left: 50%;
    bottom: -10px;
    transform: translateX(-50%);
}

/* ===== Quiénes Somos ===== */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 50px;
}

.about-text h2, .about-text h3 {
    color: var(--azul-oscuro);
}

.value-tag {
    display: inline-block;
    background-color: var(--azul-claro);
    color: var(--blanco);
    padding: 6px 15px;
    border-radius: 15px;
    margin: 5px;
}
/* --- Sección de Servicios --- */

.services {
    background-color: var(--blanco);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: var(--blanco);
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.service-img img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.service-content {
    padding: 20px;
    text-align: center;
}

.service-content h3 {
    color: var(--azul-medio);
    margin-bottom: 10px;
}

.service-content p {
    color: #333;
}

/* --- Modal --- */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0; top: 0;
    width: 100%; height: 100%;
    background-color: rgba(0,0,0,0.6);
    overflow-y: auto;
}

.modal-contenido {
    background-color: #fff;
    margin: 8% auto;
    padding: 25px;
    border-radius: 10px;
    width: 80%;
    max-width: 650px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    animation: modalFade 0.3s ease;
}

@keyframes modalFade {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

.modal-contenido img {
    width: 100%;
    border-radius: 10px;
    margin-top: 15px;
}

.cerrar {
    float: right;
    font-size: 28px;
    cursor: pointer;
    color: #666;
    transition: color 0.3s;
}

.cerrar:hover {
    color: #000;
}


/* ===== Catálogo ===== */
.catalog {
    background-color: var(--gris-claro);
    text-align: center;
}

.catalog-embed {
    width: 100%;
    height: 600px;
    border: none;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}

.catalog-download {
    display: inline-block;
    background-color: var(--azul-medio);
    color: var(--blanco);
    padding: 12px 25px;
    border-radius: 25px;
    margin-top: 25px;
    text-decoration: none;
    transition: background 0.3s;
}

.catalog-download:hover {
    background-color: var(--azul-oscuro);
}

/* ===== Blog ===== */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.blog-card {
    background: var(--blanco);
    border-radius: 10px;
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: transform 0.3s;
}

.blog-card:hover {
    transform: translateY(-8px);
}

.blog-img img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.blog-content {
    padding: 20px;
}

.blog-content h3 {
    color: var(--azul-medio);
    margin-bottom: 10px;
}

/* ----- Sección de Contacto ----- */
.contact-section {
    background-color: #f8f9fb;
    padding: 60px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 40px;
}

.section-title h2 {
    color: #0a3d62;
    font-size: 2rem;
    margin-bottom: 5px;
}

.section-title hr {
    width: 60px;
    height: 3px;
    border: none;
    background-color: #f1c40f;
    margin: 0 auto;
}

/* Contenedor principal */
.contact-container {
    display: flex;
    justify-content: space-between;
    gap: 50px;
    flex-wrap: wrap;
}

/* Información */
.contact-info {
    flex: 1;
    min-width: 280px;
}

.contact-info h3 {
    color: #0a3d62;
    margin-bottom: 10px;
}

.contact-info ul {
    list-style: none;
    padding: 0;
    margin-bottom: 20px;
}

.contact-info li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    color: #2f3640;
    font-size: 1rem;
}

.contact-info li img {
    width: 22px;
    height: 22px;
}

.contact-info a {
    color: #2980b9;
    text-decoration: none;
}

.contact-info a:hover {
    text-decoration: underline;
}

/* Íconos sociales */
.social-icons {
    display: flex;
    gap: 12px;
    margin-top: 10px;
}

.social-icons img {
    width: 35px;
    height: 35px;
    transition: transform 0.2s;
}

.social-icons img:hover {
    transform: scale(1.1);
}

/* Formulario */
.contact-form {
    flex: 1;
    min-width: 320px;
}

.contact-form form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 1rem;
}

.contact-form textarea {
    resize: vertical;
    height: 150px;
}

.contact-form button {
    background-color: #0078b7;
    color: white;
    border: none;
    padding: 12px;
    border-radius: 6px;
    font-size: 1rem;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.3s;
}

.contact-form button:hover {
    background-color: #005f8f;
}

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

    .contact-form,
    .contact-info {
        width: 100%;
    }

    .contact-info {
        text-align: center;
    }

    .contact-info li {
        justify-content: center;
    }

    .social-icons {
        justify-content: center;
    }
}

/* ===== Footer ===== */
footer {
    background-color: var(--azul-oscuro);
    color: var(--blanco);
    text-align: center;
    padding: 40px 0 20px;
    font-size: 0.95rem;
}

/* Botón flotante de WhatsApp */
.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 25px;
    right: 25px;
    background-color: #25D366;
    border-radius: 50%;
    text-align: center;
    box-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 3px 3px 12px rgba(0, 0, 0, 0.4);
}

/* Imagen dentro del botón */
.whatsapp-float img {
    width: 35px;
    height: 35px;
}


/* ===== Responsive ===== */
@media (max-width: 768px) {
    .hero-container,
    .about-content,
    .contact-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .nav-menu {
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px;
    }
}
/* ================================
   📱 Ajustes Responsive Globales
   ================================ */

@media (max-width: 1024px) {
  .header-container {
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
  }
  .nav-menu {
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
  }
}

@media (max-width: 768px) {
  .hero-container,
  .about-content,
  .services-grid,
  .contact-container {
    grid-template-columns: 1fr !important;
    text-align: center;
  }

  .logo {
    width: 120px;
  }

  header {
    position: relative;
  }

  .whatsapp-header {
    margin-top: 10px;
  }

  .container {
    width: 95%;
    padding: 10px;
  }

  h1 {
    font-size: 1.5em;
  }

  h2 {
    font-size: 1.2em;
  }

  p {
    font-size: 1em;
  }

  .service-card img,
  .about-img img {
    width: 100%;
    height: auto;
  }

  footer {
    padding: 30px 10px;
    font-size: 0.9em;
  }

  .whatsapp-float {
    width: 55px;
    height: 55px;
    bottom: 15px;
    right: 15px;
  }

  .whatsapp-float img {
    width: 30px;
    height: 30px;
  }
}

@media (max-width: 480px) {
  .nav-menu {
    flex-direction: column;
    gap: 10px;
  }

  .hero-content h1 {
    font-size: 1.3em;
  }

  .btn {
    padding: 10px 20px;
    font-size: 0.9em;
  }
}