/* ========== VARIABLES Y RESET ========== */
:root {
    --azul-marino: #0D1B3E;
    --amarillo: #FFD700;
    --blanco: #FFFFFF;
    --gris-claro: #F5F5F5;
    --texto-oscuro: #0D1B3E;
    --sombra: 0 4px 20px rgba(0, 0, 0, 0.1);
    --sombra-hover: 0 8px 30px rgba(0, 0, 0, 0.2);
    --transicion: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Poppins', sans-serif;
    color: var(--texto-oscuro);
    line-height: 1.6;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ========== SECTION TITLES ========== */
.section-title {
    text-align: center;
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 50px;
    position: relative;
    padding-bottom: 15px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--amarillo);
    border-radius: 2px;
}

.section-title.dark {
    color: var(--texto-oscuro);
}

.section-title.light {
    color: var(--blanco);
}

/* ========== BOTÓN GENERAL ========== */
.btn {
    display: inline-block;
    padding: 14px 36px;
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transicion);
    text-align: center;
}

.btn-primary {
    background: var(--amarillo);
    color: var(--azul-marino);
}

.btn-primary:hover {
    background: #e6c200;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(255, 215, 0, 0.4);
}

.btn-lg {
    padding: 18px 48px;
    font-size: 1.15rem;
}

/* ========== NAVBAR ========== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: transparent;
    transition: var(--transicion);
    padding: 15px 0;
}

.navbar.scrolled {
    background: rgba(13, 27, 62, 0.97);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
    padding: 8px 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.3rem;
    color: var(--blanco);
}

.nav-logo img {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    object-fit: cover;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 35px;
}

.nav-link {
    color: var(--blanco);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding: 5px 0;
    transition: var(--transicion);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--amarillo);
    transition: var(--transicion);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

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

/* Hamburger */
.hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
    padding: 5px;
}

.bar {
    display: block;
    width: 28px;
    height: 3px;
    background: var(--blanco);
    border-radius: 3px;
    transition: var(--transicion);
}

.hamburger.active .bar:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.hamburger.active .bar:nth-child(2) {
    opacity: 0;
}

.hamburger.active .bar:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* ========== HERO ========== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: url('../imagenes/hero-bg.jpg') center/cover no-repeat;
    text-align: center;
    color: var(--blanco);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(13, 27, 62, 0.88) 0%, rgba(13, 27, 62, 0.75) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 20px;
    animation: fadeInUp 1s ease;
}

.hero-logo {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 25px;
    border: 4px solid var(--amarillo);
    box-shadow: 0 0 40px rgba(255, 215, 0, 0.3);
}

.hero h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
}

.hero h1 span {
    color: var(--amarillo);
}

.hero-subtitle {
    font-size: 1.15rem;
    font-weight: 300;
    margin-bottom: 35px;
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.95;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========== SERVICIOS ========== */
.servicios {
    padding: 100px 0;
    background: var(--gris-claro);
}

/* Grid de 6 columnas base → 3 tarjetas por fila (span 2 c/u)
   Las últimas 2 quedan centradas en la segunda fila            */
.servicios-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 30px;
}

.servicio-card:nth-child(1),
.servicio-card:nth-child(2),
.servicio-card:nth-child(3) {
    grid-column: span 2;
}

/* Tarjeta 4 empieza en col 2 → deja 1 col vacía a la izquierda */
.servicio-card:nth-child(4) {
    grid-column: 2 / span 2;
}

/* Tarjeta 5 empieza en col 4 → deja 1 col vacía a la derecha */
.servicio-card:nth-child(5) {
    grid-column: 4 / span 2;
}

.servicio-card {
    background: var(--blanco);
    border-radius: 15px;
    padding: 35px 25px;
    text-align: center;
    box-shadow: var(--sombra);
    transition: var(--transicion);
    border-top: 4px solid transparent;
}

.servicio-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--sombra-hover);
    border-top-color: var(--amarillo);
}

.servicio-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--azul-marino), #1a2d5e);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.6rem;
    color: var(--amarillo);
}

.servicio-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--azul-marino);
}

.servicio-card p {
    font-size: 0.9rem;
    color: #555;
    line-height: 1.6;
}

/* ========== BENEFICIOS ========== */
.beneficios {
    padding: 100px 0;
    background: var(--azul-marino);
}

.beneficios-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

.beneficio-item {
    text-align: center;
    color: var(--blanco);
}

.beneficio-icon {
    width: 80px;
    height: 80px;
    background: var(--amarillo);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.8rem;
    color: var(--azul-marino);
    transition: var(--transicion);
}

.beneficio-item:hover .beneficio-icon {
    transform: scale(1.1);
    box-shadow: 0 0 30px rgba(255, 215, 0, 0.4);
}

.beneficio-item h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--amarillo);
}

.beneficio-item p {
    font-size: 0.9rem;
    opacity: 0.85;
}

.beneficios-cta {
    text-align: center;
    margin-top: 20px;
}

/* ========== CLIENTES — CARRUSEL ========== */
.clientes {
    padding: 80px 0;
    background: var(--blanco);
    overflow: hidden;
}

/* Fade edges */
.carousel-wrapper {
    position: relative;
    overflow: hidden;
    padding: 15px 0;
}

.carousel-wrapper::before,
.carousel-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 120px;
    z-index: 2;
    pointer-events: none;
}

.carousel-wrapper::before {
    left: 0;
    background: linear-gradient(to right, var(--blanco) 0%, transparent 100%);
}

.carousel-wrapper::after {
    right: 0;
    background: linear-gradient(to left, var(--blanco) 0%, transparent 100%);
}

.carousel-track {
    display: flex;
    align-items: center;
    gap: 60px;
    width: max-content;
    animation: scrollCarousel 32s linear infinite;
}

.carousel-track:hover {
    animation-play-state: paused;
}

@keyframes scrollCarousel {
    from { transform: translateX(0); }
    to   { transform: translateX(-50%); }
}

.carousel-slide {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    padding: 12px 20px;
    background: var(--gris-claro);
    border-radius: 12px;
    border: 2px solid transparent;
    transition: var(--transicion);
    min-width: 160px;
    max-width: 200px;
}

.carousel-slide:hover {
    border-color: var(--amarillo);
    box-shadow: 0 4px 20px rgba(255, 215, 0, 0.25);
    transform: translateY(-3px);
}

.carousel-slide img {
    height: 65px;
    width: auto;
    max-width: 150px;
    object-fit: contain;
    display: block;
    filter: grayscale(20%);
    transition: filter 0.3s ease;
}

.carousel-slide:hover img {
    filter: grayscale(0%);
}

/* Logo AFA tiene fondo negro — le damos contexto oscuro */
.carousel-slide.logo-dark {
    background: #1a1a1a;
    border-color: #333;
}

.carousel-slide.logo-dark:hover {
    border-color: var(--amarillo);
}

/* ========== GALERÍA ========== */
.galeria {
    padding: 100px 0;
    background: var(--gris-claro);
}

.galeria-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.galeria-item {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    aspect-ratio: 1;
    box-shadow: var(--sombra);
}

.galeria-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.galeria-item:hover img {
    transform: scale(1.1);
}

.galeria-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(13, 27, 62, 0.85) 0%, transparent 60%);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    transition: var(--transicion);
}

.galeria-item:hover .galeria-overlay {
    opacity: 1;
}

.galeria-overlay span {
    color: var(--blanco);
    font-weight: 600;
    font-size: 1rem;
}

/* ========== NOSOTROS ========== */
.nosotros {
    padding: 100px 0;
    background: var(--azul-marino);
    color: var(--blanco);
}

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

.nosotros-text p {
    font-size: 1rem;
    line-height: 1.8;
    opacity: 0.9;
    margin-bottom: 20px;
}

.nosotros-image img {
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
}

/* ========== PROYECTOS ========== */
.proyectos {
    padding: 100px 0;
    background: var(--gris-claro);
}

.proyectos-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

/* Tarjeta con foto + descripción */
.proyecto-card {
    background: var(--blanco);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--sombra);
    transition: var(--transicion);
    border-bottom: 4px solid var(--amarillo);
    display: flex;
    flex-direction: column;
}

.proyecto-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.18);
}

/* Imagen del proyecto */
.proyecto-img {
    position: relative;
    aspect-ratio: 4 / 3;
    overflow: hidden;
}

.proyecto-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
    display: block;
}

.proyecto-card:hover .proyecto-img img {
    transform: scale(1.08);
}

/* Badge con ícono de rayo */
.proyecto-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 36px;
    height: 36px;
    background: var(--amarillo);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--azul-marino);
    font-size: 0.9rem;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

/* Texto del proyecto */
.proyecto-info {
    padding: 20px 22px;
    flex: 1;
}

.proyecto-info h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--azul-marino);
    margin-bottom: 8px;
    line-height: 1.3;
}

.proyecto-info p {
    font-size: 0.85rem;
    color: #555;
    line-height: 1.65;
}

/* ========== FORMULARIO ========== */
.formulario-section {
    padding: 100px 0;
    background: var(--azul-marino);
}

.form-description {
    text-align: center;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 40px;
    font-size: 1.05rem;
}

.contact-form {
    max-width: 800px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 40px;
    backdrop-filter: blur(10px);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group.full-width {
    margin-bottom: 20px;
}

.form-group label {
    color: var(--amarillo);
    font-weight: 500;
    font-size: 0.9rem;
    margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
    font-family: 'Poppins', sans-serif;
    padding: 12px 16px;
    border: 2px solid rgba(255, 255, 255, 0.15);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.08);
    color: var(--blanco);
    font-size: 0.95rem;
    transition: var(--transicion);
    outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.form-group select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23FFD700' stroke-width='2' fill='none'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

.form-group select option {
    background: var(--azul-marino);
    color: var(--blanco);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--amarillo);
    box-shadow: 0 0 15px rgba(255, 215, 0, 0.15);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.btn-submit {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 16px;
    font-size: 1.05rem;
}

/* Alert messages */
.alert {
    padding: 15px 25px;
    border-radius: 10px;
    margin-bottom: 30px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
}

.alert-success {
    background: rgba(40, 167, 69, 0.2);
    border: 1px solid #28a745;
    color: #90ee90;
}

.alert-error {
    background: rgba(220, 53, 69, 0.2);
    border: 1px solid #dc3545;
    color: #ff9999;
}

/* ========== CONTACTO / CTA ========== */
.contacto {
    padding: 100px 0;
    background: var(--azul-marino);
    text-align: center;
}

.contacto-cta {
    margin-bottom: 60px;
}

.contacto-cta .btn i {
    font-size: 1.4rem;
}

.contacto-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.contacto-item {
    text-align: center;
    color: var(--blanco);
}

.contacto-icon {
    width: 65px;
    height: 65px;
    background: var(--amarillo);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    font-size: 1.4rem;
    color: var(--azul-marino);
}

.contacto-item h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--amarillo);
}

.contacto-item p {
    font-size: 0.95rem;
    opacity: 0.85;
}

.contacto-item a {
    color: var(--blanco);
    transition: var(--transicion);
}

.contacto-item a:hover {
    color: var(--amarillo);
}

/* ========== FOOTER ========== */
.footer {
    background: #070f24;
    color: var(--blanco);
    text-align: center;
    padding: 40px 0;
}

.footer p {
    font-size: 0.9rem;
    opacity: 0.7;
    margin-bottom: 10px;
}

.footer-social-text {
    font-size: 0.85rem;
    opacity: 0.6;
}

.footer-social {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 15px;
}

.footer-social a {
    width: 42px;
    height: 42px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--blanco);
    transition: var(--transicion);
}

.footer-social a:hover {
    background: var(--amarillo);
    color: var(--azul-marino);
    transform: translateY(-3px);
}

/* ========== WHATSAPP FLOAT ========== */
.whatsapp-float {
    position: fixed;
    bottom: 25px;
    right: 25px;
    width: 60px;
    height: 60px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--blanco);
    z-index: 999;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    transition: var(--transicion);
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(37, 211, 102, 0.6);
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.5); }
    70% { box-shadow: 0 0 0 15px rgba(37, 211, 102, 0); }
    100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

/* ========== SCROLL REVEAL ========== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 992px) {
    .hero h1 {
        font-size: 2.3rem;
    }

    .beneficios-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .nosotros-content {
        grid-template-columns: 1fr;
    }

    .nosotros-image {
        order: -1;
    }

    .nosotros-image img {
        max-width: 400px;
        margin: 0 auto;
        display: block;
    }

    .contacto-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .proyectos-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .section-title {
        font-size: 1.8rem;
    }

    /* Mobile Menu */
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--azul-marino);
        flex-direction: column;
        justify-content: center;
        gap: 0;
        padding: 30px;
        transition: right 0.4s ease;
        box-shadow: -5px 0 30px rgba(0, 0, 0, 0.3);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-link {
        font-size: 1.1rem;
        padding: 15px 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    /* Hero mobile */
    .hero {
        min-height: 100vh;
        padding: 100px 20px 60px;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-logo {
        width: 110px;
        height: 110px;
    }

    /* Servicios mobile — 1 columna */
    .servicios-grid {
        grid-template-columns: 1fr;
    }

    .servicio-card:nth-child(1),
    .servicio-card:nth-child(2),
    .servicio-card:nth-child(3),
    .servicio-card:nth-child(4),
    .servicio-card:nth-child(5) {
        grid-column: span 1;
    }

    /* Carrusel mobile — logos más pequeños */
    .carousel-slide img {
        height: 50px;
    }

    .carousel-slide {
        min-width: 120px;
        max-width: 150px;
        padding: 10px 15px;
    }

    .carousel-wrapper::before,
    .carousel-wrapper::after {
        width: 60px;
    }

    /* Beneficios mobile */
    .beneficios-grid {
        grid-template-columns: 1fr 1fr;
        gap: 25px;
    }

    /* Galería mobile */
    .galeria-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Proyectos mobile */
    .proyectos-grid {
        grid-template-columns: 1fr 1fr;
    }

    /* Form mobile */
    .form-row {
        grid-template-columns: 1fr;
    }

    .contact-form {
        padding: 25px 20px;
    }

    .btn-lg {
        padding: 15px 30px;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.5rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .beneficios-grid {
        grid-template-columns: 1fr;
    }

    .galeria-grid {
        grid-template-columns: 1fr;
    }

    .proyectos-grid {
        grid-template-columns: 1fr;
    }

    /* Carrusel en móvil muy pequeño */
    .carousel-slide img {
        height: 42px;
    }

    .carousel-slide {
        min-width: 100px;
        padding: 8px 12px;
    }
}