/* ======================================== */
 /* 0. RESET Y VARIABLES GLOBALES */
 /* ======================================== */

 :root {
     /* Colores de la marca */
     --color-dark: #0A1931;
     /* Azul marino muy oscuro */
     --color-accent: #00C9FF;
     /* Cian brillante / Tecnología */
     --color-light: #FFFFFF;
     --color-medium: #3A476A;
     --color-text-secondary: #B0C4DE;

     /* Tipografía */
     --font-primary: 'Poppins', sans-serif;
 }

 * {
     margin: 0;
     padding: 0;
     box-sizing: border-box;
 }

 body {
     font-family: var(--font-primary);
     line-height: 1.6;
     background-color: var(--color-dark);
     color: var(--color-light);
     overflow-x: hidden;
     /* Previene scroll horizontal */
 }

 /* ======================================== */
 /* 1. UTILIDADES Y BOTONES (CTA) */
 /* ======================================== */

 a {
     text-decoration: none;
     color: var(--color-accent);
 }

 .button-primary,
 .button-secondary {
     display: inline-block;
     padding: 12px 30px;
     margin-top: 20px;
     border-radius: 50px;
     font-weight: bold;
     text-transform: uppercase;
     transition: background-color 0.3s ease, transform 0.2s ease;
     border: 2px solid transparent;
     letter-spacing: 1px;
 }

 /* Botón principal (el más importante) */
 .button-primary {
     background-color: var(--color-accent);
     color: var(--color-dark);
     border-color: var(--color-accent);
 }

 .button-primary:hover {
     background-color: #00a7e0;
     transform: translateY(-3px);
     box-shadow: 0 5px 15px rgba(0, 201, 255, 0.4);
 }

 /* Botón secundario (menos urgente) */
 .button-secondary {
     background: none;
     color: var(--color-accent);
     border-color: var(--color-accent);
 }

 .button-secondary:hover {
     background-color: var(--color-accent);
     color: var(--color-dark);
     transform: translateY(-3px);
 }

 /* ======================================== */
 /* MENSAJES DE ÉXITO Y ERROR */
 /* ======================================== */
 .success-message,
 .error-message {
     padding: 20px;
     margin-bottom: 20px;
     border-radius: 5px;
     text-align: center;
     font-weight: bold;
 }

 .success-message {
     background-color: rgba(0, 255, 128, 0.2);
     border: 1px solid #00ff80;
     color: #00ff80;
 }

 .error-message {
     background-color: rgba(255, 0, 0, 0.2);
     border: 1px solid #ff0000;
     color: #ff6b6b;
 }

 /* ======================================== */
 /* 2. NAVEGACIÓN PRINCIPAL (REESCRITURA COMPLETA) */
 /* ======================================== */

 .site-header {
     background-color: rgba(10, 25, 49, 0.95);
     border-bottom: 1px solid rgba(0, 201, 255, 0.1);
     position: sticky;
     top: 0;
     z-index: 1000;
 }

 .header-container {
     display: flex;
     justify-content: space-between;
     align-items: center;
     padding: 15px 5%;
     max-width: 1400px;
     margin: 0 auto;
 }

 .logo-img {
     height: 45px;
     width: auto;
     display: block;
 }

 /* ----- ESCRITORIO ----- */
 .nav-menu {
     display: flex;
     align-items: center;
 }

 .nav-list {
     list-style: none;
     display: flex;
     align-items: center;
     gap: 25px;
     margin: 0;
     padding: 0;
 }

 .nav-item {
     position: relative;
 }

 .nav-link {
     color: var(--color-light);
     font-size: 1rem;
     font-weight: 400;
     padding: 10px 15px;
     text-decoration: none;
     transition: color 0.3s ease;
     display: flex;
     align-items: center;
     gap: 5px;
 }

 .nav-link:hover {
     color: var(--color-accent);
 }

 /* Botón de Cotizar en Navbar */
 .btn-cta {
     background-color: var(--color-accent);
     color: var(--color-dark) !important;
     border-radius: 50px;
     font-weight: 600;
     padding: 10px 20px;
 }

 .btn-cta:hover {
     background-color: #00a7e0;
     transform: translateY(-2px);
 }

 /* Dropdown Desktop */
 .dropdown-menu {
     position: absolute;
     top: 100%;
     left: 0;
     background-color: var(--color-dark);
     min-width: 250px;
     box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
     border-radius: 8px;
     border: 1px solid rgba(255, 255, 255, 0.05);
     padding: 10px 0;
     list-style: none;
     opacity: 0;
     visibility: hidden;
     transform: translateY(10px);
     transition: all 0.3s ease;
     z-index: 1000;
 }

 .has-dropdown:hover .dropdown-menu {
     opacity: 1;
     visibility: visible;
     transform: translateY(0);
 }

 .dropdown-link {
     display: block;
     padding: 10px 20px;
     color: var(--color-text-secondary);
     text-decoration: none;
     font-size: 0.95rem;
     transition: all 0.2s ease;
 }

 .dropdown-link:hover {
     background-color: rgba(0, 201, 255, 0.1);
     color: var(--color-accent);
     padding-left: 25px;
     /* Efecto hover visual */
 }

 /* Ocultar botón hamburguesa en escritorio */
 .nav-toggle {
     display: none;
     background: none;
     border: none;
     cursor: pointer;
     padding: 10px;
     z-index: 1001;
 }

 .hamburger {
     display: block;
     position: relative;
     width: 25px;
     height: 3px;
     background-color: var(--color-accent);
     transition: all 0.3s ease;
 }

 .hamburger::before,
 .hamburger::after {
     content: '';
     position: absolute;
     left: 0;
     width: 100%;
     height: 3px;
     background-color: var(--color-accent);
     transition: all 0.3s ease;
 }

 .hamburger::before {
     top: -8px;
 }

 .hamburger::after {
     bottom: -8px;
 }

 .nav-toggle.active .hamburger {
     background-color: transparent;
 }

 .nav-toggle.active .hamburger::before {
     top: 0;
     transform: rotate(45deg);
 }

 .nav-toggle.active .hamburger::after {
     bottom: 0;
     transform: rotate(-45deg);
 }

 /* ======================================== */
 /* 3. SECCIÓN HERO (LA GRAN IMPACTO) */
 /* ======================================== */

 .hero {
     height: 90vh;
     display: flex;
     justify-content: center;
     align-items: center;
     text-align: center;
     background-size: cover;
     background-position: center;
     position: relative;
 }

 /* Capa oscura para que el texto sea legible sobre la imagen */
 .hero::before {
     content: "";
     position: absolute;
     top: 0;
     left: 0;
     right: 0;
     bottom: 0;
     background: rgba(0, 0, 0, 0.6);
 }

 .hero-content {
     position: relative;
     z-index: 1;
     max-width: 900px;
     padding: 20px;
 }

 .hero-content h1 {
     font-size: 4rem;
     margin-bottom: 15px;
     line-height: 1.1;
     text-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
 }

 .hero-content p {
     font-size: 1.4rem;
     color: var(--color-text-secondary);
     margin-bottom: 30px;
 }

 /* ======================================== */
 /* CLASES ESPECÍFICAS PARA HERO CON DIFERENTES FONDOS */
 /* ======================================== */
 .hero-index {
     background: url('graficos/drones-Peru-medium.webp') center center no-repeat;
 }

 .hero-servicios {
     background: url('graficos/Inspeccion-Planta-Solar-drones.webp') center center no-repeat;
 }

 .hero-portafolio {
     background: url('graficos/fotogrametria-drones-ortomosaico.webp') center center no-repeat;
 }

 .hero-nosotros {
     background: url('graficos/inspeccion-aerogeneradores-drones.webp') center center no-repeat;
 }

 .hero-piloto {
     background: url('graficos/fotogrametria-drones-ortomosaico.webp') center center no-repeat;
 }

 .hero-contacto {
     background: url('graficos/drones-Peru-large.webp') center center no-repeat;
 }

 /* ======================================== */
 /* CLASES PARA PÁGINAS QUE USAN SECCIÓN HERO */
 /* ======================================== */
 .hero-index,
 .hero-servicios,
 .hero-portafolio,
 .hero-nosotros,
 .hero-piloto,
 .hero-contacto {
     height: 90vh;
     display: flex;
     justify-content: center;
     align-items: center;
     text-align: center;
     background-size: cover;
     background-position: center;
     position: relative;
 }

 .hero-index .hero-content h1,
 .hero-servicios .hero-content h1,
 .hero-portafolio .hero-content h1,
 .hero-nosotros .hero-content h1,
 .hero-servicios .hero-piloto h1,
 .hero-contacto .hero-content h1 {
     font-size: 4rem;
     margin-bottom: 15px;
     line-height: 1.1;
     text-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
 }

 .hero-index .hero-content p,
 .hero-servicios .hero-content p,
 .hero-portafolio .hero-content p,
 .hero-nosotros .hero-content p,
 .hero-servicios .hero-piloto p,
 .hero-contacto .hero-content p {
     font-size: 1.4rem;
     color: var(--color-text-secondary);
     margin-bottom: 30px;
 }

 @media (max-width: 767px) {

     .hero-index .hero-content h1,
     .hero-servicios .hero-content h1,
     .hero-portafolio .hero-content h1,
     .hero-nosotros .hero-content h1,
     .hero-servicios .hero-piloto h1,
     .hero-contacto .hero-content h1 {
         font-size: 3rem;
     }
 }

 @media (max-width: 480px) {

     .hero-index,
     .hero-servicios,
     .hero-portafolio,
     .hero-nosotros,
     .hero-contacto {
         height: 70vh;
     }

     .hero-index .hero-content h1,
     .hero-servicios .hero-content h1,
     .hero-portafolio .hero-content h1,
     .hero-nosotros .hero-content h1,
     .hero-servicios .hero-piloto h1,
     .hero-contacto .hero-content h1 {
         font-size: 2.5rem;
     }
 }

 /* ======================================== */
 /* 4. SECCIONES GENERALES Y SERVICIOS */
 /* ======================================== */

 section {
     padding: 80px 5%;
     text-align: center;
 }

 .services {
     background-color: #051021;
 }

 .services h2,
 .portfolio h2,
 .nosotros h2,
 .contacto h2 {
     font-size: 2.5rem;
     margin-bottom: 15px;
     color: var(--color-accent);
 }

 .services p,
 .portfolio p,
 .nosotros p,
 .contacto p {
     margin-bottom: 50px;
     font-size: 1.1rem;
     color: var(--color-text-secondary);
 }

 /* Tarjetas de Servicio (Usamos Grid para alineación) */
 .service-card {
     display: inline-block;
     width: 30%;
     margin: 1.5% 0.5%;
     padding: 30px;
     background-color: var(--color-medium);
     border-radius: 10px;
     box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
     transition: transform 0.3s ease, box-shadow 0.3s ease;
     text-align: left;
 }

 .service-card:hover {
     transform: translateY(-10px);
     box-shadow: 0 15px 30px rgba(0, 201, 255, 0.2);
 }

 .service-card h2,
 .service-card h3 {
     color: var(--color-accent);
     margin-bottom: 10px;
     font-size: 1.5rem;
     line-height: 1.3;
 }

 .lista {
     list-style-type: none;
     padding-left: 20px; /* Espacio para que no se pegue al borde */
    }

.lista li::before {
    content: "> "; 
    color: #00c9ff; /* Color del símbolo */
    line-height: 1.5;
  }  
  
  .lista li {
    line-height: 1.5;
    padding: 5px 0; /* Espacio entre los elementos de la lista */
  }  

 /* ======================================== */
 /* 5. PORTAFOLIO / GALERÍA */
 /* ======================================== */

 .portfolio {
     background-color: var(--color-dark);
 }

 .gallery-container {
     display: grid;
     grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
     gap: 30px;
     margin-top: 40px;
     margin-bottom: 40px;
 }

 .project-item {
     overflow: hidden;
     border-radius: 10px;
     box-shadow: 0 5px 15px rgba(0, 0, 0, 0.4);
     transition: transform 0.3s ease;
 }

 .project-item:hover {
     transform: scale(1.03);
 }

 .project-item figure img {
     width: 100%;
     height: 250px;
     object-fit: cover;
     display: block;
     transition: opacity 0.3s ease;
 }

 .project-item figure img:hover {
     opacity: 0.8;
 }

 figcaption {
     padding: 15px;
     text-align: center;
     background-color: var(--color-medium);
     font-size: 1.1rem;
     font-weight: 600;
 }

 /* ======================================== */
 /* 6. SECCIÓN NOSOTROS (ABOUT) */
 /* ======================================== */

 .about {
     background-color: #051021;
 }

 .about ul {
     list-style: none;
     margin-top: 30px;
     padding: 0;
     text-align: left;
 }

 .about li {
     background-color: rgba(255, 255, 255, 0.05);
     padding: 10px 15px;
     margin-bottom: 10px;
     border-left: 5px solid var(--color-accent);
     font-size: 1.1rem;
 }

 /* ======================================== */
 /* 7. FORMULARIO DE CONTACTO */
 /* ======================================== */

 .contact {
     padding: 100px 5%;
 }

 .contact form {
     max-width: 600px;
     margin: 30px auto 0;
     text-align: left;
     padding: 30px;
     background-color: var(--color-medium);
     border-radius: 10px;
     box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
 }

 .contact label {
     display: block;
     margin-bottom: 8px;
     font-weight: bold;
     color: var(--color-light);
     margin-top: 15px;
 }

 .contact input[type="text"],
 .contact input[type="email"],
 .contact input[type="tel"],
 .contact textarea {
     width: 100%;
     padding: 12px;
     margin-bottom: 20px;
     border: 1px solid var(--color-accent);
     background-color: #0a1931;
     color: var(--color-light);
     border-radius: 5px;
     transition: border-color 0.3s ease;
 }

 .contact input:focus,
 .contact textarea:focus {
     border-color: #00a7e0;
     outline: none;
     box-shadow: 0 0 5px rgba(0, 201, 255, 0.5);
 }

 /* ======================================== */
 /* 8. FOOTER */
 /* ======================================== */

 footer {
     background-color: #000;
     padding: 40px 5%;
     border-top: 1px solid rgba(255, 255, 255, 0.1);
     font-size: 0.9rem;
     color: var(--color-text-secondary);
 }

 .footer-content {
     display: flex;
     justify-content: space-between;
     align-items: center;
     flex-wrap: wrap;
 }

 footer nav ul {
     list-style: none;
     display: flex;
     gap: 20px;
 }

 footer nav a {
     color: var(--color-text-secondary);
 }

 footer nav a:hover {
     color: var(--color-accent);
 }


 /* ======================================== */
 /* 📱 RESPONSIVIDAD (MOBILE FIRST) */
 /* ======================================== */

 @media (min-width: 1024px) {
     .service-card {
         width: 45%;
         /* 2 por fila en pantallas medianas */
         margin: 1.5% 0;
     }
 }

 @media (max-width: 1024px) {

     /* Achicar los títulos de las tarjetas para que no se desborden en pantallas medianas */
     .service-card h2,
     .service-card h3 {
         font-size: 1.25rem;
     }
 }

 @media (max-width: 992px) {

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

     /* Ocultar menú por defecto */
     .nav-menu {
         position: absolute;
         top: 100%;
         left: 0;
         width: 100%;
         background-color: var(--color-dark);
         box-shadow: 0 10px 20px rgba(0, 0, 0, 0.5);
         display: none;
         /* Oculto inicialmente */
         padding: 20px 0;
     }

     .nav-menu.active {
         display: block;
         /* Visible al tocar hamburguesa */
     }

     .nav-list {
         flex-direction: column;
         align-items: flex-start;
         gap: 0;
     }

     .nav-link {
         padding: 15px 5%;
         width: 100%;
         border-bottom: 1px solid rgba(255, 255, 255, 0.05);
     }

     .btn-cta {
         margin: 15px 5%;
         width: 90%;
         text-align: center;
         display: block;
     }

     /* Submenú Móvil */
     .dropdown-menu {
         position: static;
         /* Fluye con el documento */
         box-shadow: none;
         background-color: rgba(0, 0, 0, 0.2);
         border: none;
         padding: 0;
         transform: none;
         visibility: visible;
         opacity: 1;
         display: none;
         /* Oculto por defecto en móvil */
     }

     .has-dropdown.open .dropdown-menu {
         display: block;
     }

     .dropdown-link {
         padding-left: 10%;
         font-size: 0.9rem;
     }

     /* Ajuste de la cuadrícula de servicios para tablets */
     .service-card {
         width: 90%;
         /* 1 por fila en pantallas < 992px */
         margin-bottom: 20px;
         display: block;
         margin-left: auto;
         margin-right: auto;
     }
 }

 @media (max-width: 767px) {

     /* Ajuste de la cuadrícula de servicios */
     .service-card {
         width: 90%;
         /* 1 por fila en móviles */
         margin-bottom: 20px;
     }

     .hero-content h1 {
         font-size: 3rem;
     }

     /* Footer: Apilar elementos */
     .footer-content {
         flex-direction: column;
         text-align: center;
         gap: 20px;
     }
 }

 @media (max-width: 480px) {
     .hero {
         height: 70vh;
     }

     .hero-content h1 {
         font-size: 2.5rem;
     }

     /* Asegura que todos los elementos ocupen todo el ancho en el móvil */
     .service-card,
     .project-item {
         width: 100%;
     }
 }

 .whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 25px;
    right: 25px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    text-decoration: none;
    font-size: 34px;
    box-shadow: 0 4px 12px rgba(0,0,0,.3);
    z-index: 9999;
    transition: all .3s ease;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    background: #1ebe5d;
}

@media (max-width: 768px) {
    .whatsapp-float {
        width: 55px;
        height: 55px;
        font-size: 30px;
        bottom: 20px;
        right: 20px;
    }
}