/* ===================================================
   1. RESETEO, VARIABLES Y DESPLAZAMIENTO SUAVE
   =================================================== */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

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

:root {
    --color-principal: #111827;
    --color-fondo: #ffffff;
    --color-fondo-gris: #f9fafb;
    --color-verde-cta: #10b981;
    --color-verde-hover: #059669;
    --color-texto-mutado: #4b5563;
    --color-borde: #e5e7eb;
    --fuente-base: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

body {
    font-family: var(--fuente-base);
    color: var(--color-principal);
    background-color: var(--color-fondo);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ===================================================
   2. ELEMENTOS GENERALES Y UTILIDADES
   =================================================== */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

.contenedor {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

/* ===================================================
   3. CABECERA (HEADER) Y LOGO
   =================================================== */
.header-principal {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    background-color: #ffffff;
    border-bottom: 1px solid var(--color-borde);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 800;
    font-size: 1.4rem;
    letter-spacing: -0.5px;
    color: var(--color-principal);
    text-decoration: none;
}

.logo-img {
    height: 40px;
    width: 40px;
    object-fit: contain;
    background-color: #0b1120;
    border-radius: 9px;
    padding: 6px;
    flex-shrink: 0;
}

.nav-desktop {
    display: none;
}

.btn-hamburguesa {
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: 5px;
}

.btn-hamburguesa span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--color-principal);
    border-radius: 2px;
}

/* ===================================================
   4. MENÚ OVERLAY (MÓVIL)
   =================================================== */
.menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    height: 100dvh;
    background-color: rgba(0, 0, 0, 0.6);
    z-index: 200;
    display: flex;
    justify-content: flex-end;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.menu-contenido {
    width: 85%;
    max-width: 320px;
    height: 100%;
    background-color: var(--color-fondo);
    padding: 2rem 1.5rem 3.5rem 1.5rem;
    display: flex;
    flex-direction: column;
    position: relative;
    box-sizing: border-box;
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.menu-overlay.activo {
    opacity: 1;
    visibility: visible;
}

.menu-overlay.activo .menu-contenido {
    transform: translateX(0);
}

.btn-cerrar {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    align-self: flex-end;
    color: var(--color-principal);
    margin-bottom: 2rem;
}

.enlaces-menu {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: auto;
}

.enlaces-menu a {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-principal);
}

.divisor-menu {
    border: none;
    border-top: 1px solid var(--color-borde);
    margin: 1.5rem 0;
}

.info-menu {
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    color: var(--color-texto-mutado);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.txt-guardia {
    font-weight: 600;
    color: var(--color-principal);
}

.btn-whatsapp {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background-color: var(--color-verde-cta);
    color: #ffffff;
    text-align: center;
    padding: 0.85rem;
    border-radius: 8px;
    font-weight: 700;
    transition: background-color 0.2s ease, transform 0.1s ease;
    margin-bottom: 0.5rem;
}

.btn-whatsapp:hover {
    background-color: var(--color-verde-hover);
}

/* ===================================================
   5. SECCIÓN HERO CENTRADO
   =================================================== */
.hero-centrado {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 3rem 1.5rem 1.5rem;
    max-width: 1000px;
    margin: 0 auto;
}

.hero-texto-centrado {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.hero-texto-centrado h1 {
    font-size: 2rem;
    line-height: 1.2;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: var(--color-principal);
    max-width: 850px;
}

.hero-texto-centrado p {
    font-size: 1.05rem;
    color: var(--color-texto-mutado);
    line-height: 1.5;
    max-width: 700px;
}

.btn-whatsapp-hero {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background-color: var(--color-verde-cta);
    color: #ffffff;
    font-size: 0.95rem;
    font-weight: 700;
    padding: 0.85rem 1.5rem;
    border-radius: 8px;
    transition: background-color 0.2s ease, transform 0.1s ease;
    margin-top: 0.5rem;
}

.btn-whatsapp-hero:hover {
    background-color: var(--color-verde-hover);
}

.btn-whatsapp-hero:active {
    transform: scale(0.98);
}

.btn-whatsapp svg,
.btn-whatsapp-hero svg {
    flex-shrink: 0;
    fill: currentColor;
}

/* ===================================================
   6. SECCIÓN TRABAJOS EN CAMPO (CARRUSEL)
   =================================================== */
.seccion-trabajos {
    padding: 2.5rem 0 3.5rem;
    background-color: var(--color-fondo);
    text-align: center;
}

.titulo-seccion-trabajos {
    font-size: 1.85rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 1.75rem;
    color: var(--color-principal);
}

.carrusel-wrapper-centrado {
    position: relative;
    width: 100%;
    max-width: 1150px;
    margin: 0 auto;
    padding: 0;
    box-sizing: border-box;
}

.carrusel-trabajos {
    display: flex;
    gap: 1.25rem;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-padding: 0 10%;
    padding: 0.5rem 10% 1.5rem 10%;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.carrusel-trabajos::-webkit-scrollbar {
    display: none;
}

.card-trabajo {
    flex: 0 0 78vw;
    max-width: 300px;
    aspect-ratio: 9 / 16;
    position: relative;
    border-radius: 14px;
    overflow: hidden;
    scroll-snap-align: center;
    background-color: #000000;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.12);
}

.card-trabajo:first-child {
    scroll-snap-align: start;
}

.card-trabajo:last-child {
    scroll-snap-align: end;
}

.card-trabajo video,
.card-trabajo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.info-trabajo {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 2.5rem 1rem 1rem;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.88) 0%, rgba(0, 0, 0, 0.45) 60%, transparent 100%);
    color: #ffffff;
    pointer-events: none;
    text-align: left;
}

.info-trabajo h4 {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    line-height: 1.2;
}

.info-trabajo p {
    font-size: 0.8rem;
    color: #e2e8f0;
    line-height: 1.3;
}

.btn-carrusel {
    display: none;
}

/* ===================================================
   7. SECCIÓN SERVICIOS
   =================================================== */
.servicios {
    padding: 3.5rem 0;
    background-color: var(--color-fondo-gris);
}

.titulo-seccion {
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 2rem;
    color: var(--color-principal);
    text-align: center;
}

.grilla-servicios {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.tarjeta-servicio {
    background-color: var(--color-fondo);
    border: 1px solid var(--color-borde);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    display: flex;
    flex-direction: column;
}

.tarjeta-servicio img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.contenido-tarjeta {
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    text-align: left;
}

.contenido-tarjeta h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-principal);
}

.contenido-tarjeta p {
    font-size: 0.92rem;
    color: var(--color-texto-mutado);
    line-height: 1.5;
}

/* ===================================================
   8. PIE DE PÁGINA (FOOTER) Y CONTACTO
   =================================================== */
.footer {
    background-color: var(--color-principal);
    color: #ffffff;
    padding: 3.5rem 0 1.5rem 0;
}

.contenedor-footer {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.columna-footer h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: #ffffff;
}

.columna-footer p,
.columna-footer a {
    font-size: 0.95rem;
    color: #9ca3af;
    line-height: 1.6;
    margin-bottom: 0.35rem;
    display: block;
}

.columna-footer a:hover {
    color: #ffffff;
}

.copyright {
    margin-top: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid #374151;
    text-align: center;
    font-size: 0.85rem;
    color: #9ca3af;
}

/* ===================================================
   9. MEDIA QUERIES (ESCRITORIO / PC >= 992px)
   =================================================== */
@media (min-width: 992px) {
    /* Header en PC */
    .logo {
        font-size: 1.75rem;
        gap: 0.65rem;
    }

    .logo-img {
        height: 46px;
        width: 46px;
        padding: 7px;
    }

    .btn-hamburguesa {
        display: none;
    }

    .nav-desktop {
        display: block;
    }

    .enlaces-desktop {
        list-style: none;
        display: flex;
        align-items: center;
        gap: 2rem;
    }

    .enlaces-desktop a {
        font-size: 0.95rem;
        font-weight: 500;
        color: var(--color-principal);
        transition: color 0.2s ease;
    }

    .enlaces-desktop a:hover {
        color: var(--color-verde-hover);
    }

    .menu-overlay {
        display: none;
    }

    /* Hero Centrado en PC */
    .hero-centrado {
        padding: 4rem 1.5rem 2rem;
    }

    .hero-texto-centrado h1 {
        font-size: 2.85rem;
    }

    .hero-texto-centrado p {
        font-size: 1.2rem;
    }

    /* Carrusel 3 por pantalla en PC */
    .carrusel-wrapper-centrado {
        padding: 0 50px;
    }

    .carrusel-trabajos {
        padding: 0.5rem 0 1.5rem;
        scroll-padding: 0;
        gap: 1.5rem;
    }

    .carrusel-wrapper-centrado .card-trabajo {
        flex: 0 0 calc((100% - 3rem) / 3);
        max-width: calc((100% - 3rem) / 3);
        scroll-snap-align: start;
    }

    .btn-carrusel {
        display: flex;
        align-items: center;
        justify-content: center;
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        width: 46px;
        height: 46px;
        border-radius: 50%;
        background-color: #ffffff;
        color: var(--color-principal);
        border: 1px solid var(--color-borde);
        box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
        cursor: pointer;
        z-index: 10;
        transition: background-color 0.2s ease, transform 0.2s ease;
    }

    .btn-carrusel:hover {
        background-color: var(--color-fondo-gris);
        transform: translateY(-50%) scale(1.08);
    }

    .btn-carrusel.prev {
        left: 0;
    }

    .btn-carrusel.next {
        right: 0;
    }

    /* Servicios en grilla 2x2 */
    .grilla-servicios {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }

    .titulo-seccion,
    .titulo-seccion-trabajos {
        font-size: 2.25rem;
    }

    /* Footer en 2 columnas */
    .contenedor-footer {
        flex-direction: row;
        justify-content: space-between;
        align-items: flex-start;
    }

    .columna-footer {
        max-width: 400px;
    }
}