:root {
    --azul-corporativo: #142a5a;
    --naranja-acento: #f39c12;
    --gris-estructural: #f0f2f5;
    --gris-oscuro-texto: #333333;
    --blanco: #FFFFFF;
    --fuente-principal: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    --transicion-suave: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--fuente-principal);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gris-oscuro-texto);
    background-color: var(--blanco);
}

.container {
    max-width: 1100px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 20px;
    padding-right: 20px;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--azul-corporativo);
    margin-bottom: 0.75em;
    line-height: 1.2;
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
p { margin-bottom: 1em; }

a {
    color: var(--naranja-acento);
    text-decoration: none;
    transition: var(--transicion-suave);
}

a:hover { opacity: 0.8; }

section {
    padding: 80px 0;
}

.site-header {
    background-color: var(--blanco);
    padding: 20px 0;
    border-bottom: 1px solid var(--gris-estructural);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--azul-corporativo);
}

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

.main-nav a {
    color: var(--gris-oscuro-texto);
    font-weight: 500;
    padding: 5px 0;
    border-bottom: 2px solid transparent;
}

.main-nav a:hover, .main-nav a.active {
    color: var(--azul-corporativo);
    border-bottom-color: var(--naranja-acento);
}
.main-nav a i {
    margin-right: 8px;
    width: 20px; 
    text-align: center;
}

.hamburger-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 1001;
}

.hamburger-btn span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--azul-corporativo);
    margin: 5px 0;
    transition: var(--transicion-suave);
}

.site-footer {
    background-color: var(--azul-corporativo);
    color: var(--blanco);
    padding: 40px 0;
    text-align: center;
}

#hero {
    background-color: var(--azul-corporativo);
    color: var(--blanco);
    text-align: center;
    padding: 80px 0;
}

#hero h1 {
    color: var(--blanco);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

#hero p {
    font-size: 1.2rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.9;
}

#clientes {
    background-color: var(--gris-estructural);
    text-align: center;
}

.client-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 40px;
    margin-top: 40px;
}

.client-logos img {
    max-height: 60px;
    max-width: 150px;
    filter: grayscale(100%);
    opacity: 0.7;
    transition: var(--transicion-suave);
}

.client-logos img:hover {
    filter: grayscale(0%);
    opacity: 1;
}


#servicios {
    background-color: var(--blanco);
}

.servicios-grid-nuevos {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.servicio-item {
    min-height: 400px;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    border-radius: 8px;
    overflow: hidden;
    color: var(--blanco);
    background-size: cover;
    background-position: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: var(--transicion-suave);
}

.servicio-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.servicio-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(20, 42, 90, 0.8), rgba(20, 42, 90, 0.1));
    z-index: 1;
}

.servicio-item-inner {
    padding: 30px;
    position: relative;
    z-index: 2;
}

.servicio-item-inner i {
    font-size: 2.5rem;
    color: var(--naranja-acento);
    margin-bottom: 15px;
}

.servicio-item-inner h3 {
    color: var(--blanco);
    font-size: 1.6rem;
    margin-bottom: 10px;
}

.servicio-item-inner p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 20px;
}

.servicio-item-inner .btn {
    background-color: var(--naranja-acento);
    color: var(--blanco);
}

.servicio-item-inner .btn:hover {
    background-color: var(--blanco);
    color: var(--azul-corporativo);
}

.servicio-item-1 {
    background-image: url('../images/servicios/infraestructura.jpg');
}

.servicio-item-2 {
    background-image: url('../images/servicios/industrial.jpg');
}

.servicio-item-3 {
    background-image: url('../images/servicios/mantenimiento.jpg');
}

.btn {
    display: inline-block;
    background-color: var(--naranja-acento);
    color: var(--blanco);
    padding: 10px 20px;
    border-radius: 5px;
    font-weight: bold;
    margin-top: 15px;
}

.btn:hover {
    background-color: var(--azul-corporativo);
    color: var(--blanco);
    opacity: 1;
}


#proyectos {
    background-color: var(--blanco);
}

.proyectos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.proyecto-card {
    background-color: var(--blanco);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.07);
    transition: var(--transicion-suave);
    display: flex;
    flex-direction: column;
}

.proyecto-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.proyecto-card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.proyecto-content {
    padding: 25px;
    display: flex;
    flex-direction: column;
    flex-grow: 1; 
}

.proyecto-content h3 {
    font-size: 1.4rem;
    color: var(--azul-corporativo);
}

.proyecto-content .cliente {
    color: var(--gris-oscuro-texto);
    font-weight: bold;
    margin-bottom: 15px;
    font-size: 0.9rem;
}

.proyecto-content p {
    flex-grow: 1; 
}

.proyecto-content .btn {
    align-self: flex-start; 
}

#contacto {
    position: relative;
    padding: 100px 0;
    background-image: url('../images/contacto-bg.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed; 
}

#contacto::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(20, 42, 90, 0.85);
    z-index: 1;
}

.contacto-box-wrapper {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
    background-color: var(--blanco);
    padding: 50px;
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
    text-align: center;
}

.contacto-box-wrapper h2 {
    font-size: 2.5rem;
}

.contacto-box-wrapper p {
    font-size: 1.1rem;
    max-width: 600px;
    margin: 15px auto 30px auto;
}

.contact-form-nuevo .form-row {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.contact-form-nuevo input,
.contact-form-nuevo textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    font-family: var(--fuente-principal);
    transition: border-color 0.3s ease;
}

.contact-form-nuevo input:focus,
.contact-form-nuevo textarea:focus {
    outline: none;
    border-color: var(--naranja-acento);
}

.contact-form-nuevo textarea {
    resize: vertical;
    margin-bottom: 20px;
}

.contacto-directo {
    margin-top: 30px;
    padding-top: 30px;
    border-top: 1px solid var(--gris-estructural);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 25px;
    flex-wrap: wrap;
}

.contacto-directo span {
    font-weight: 500;
    color: var(--gris-oscuro-texto);
}

.contacto-directo a {
    color: var(--azul-corporativo);
    font-weight: bold;
    text-decoration: none;
}

.contacto-directo a i {
    margin-right: 8px;
    color: var(--naranja-acento);
}
.whatsapp-btn {
    background-color: #25D366;
    color: var(--blanco);
    padding: 8px 15px;
    border-radius: 5px;
    font-weight: bold;
    text-decoration: none;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.whatsapp-btn:hover {
    background-color: #1DA851;
    color: var(--blanco);
    opacity: 1;
}
#form-message {
    padding: 15px;
    margin-top: 20px;
    border-radius: 5px;
    text-align: center;
    font-weight: bold;
    display: none;
}

.message-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.message-error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}
.contacto-directo .whatsapp-btn {
    background-color: transparent;
    border: 2px solid var(--azul-corporativo);
    color: var(--azul-corporativo);
    padding: 8px 18px;
    border-radius: 50px;
    font-weight: bold;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transicion-suave);
}

.contacto-directo .whatsapp-btn .fa-whatsapp {
    color: #25D366;
    font-size: 1.3rem;
    transition: var(--transicion-suave);
}

.contacto-directo .whatsapp-btn:hover {
    background-color: var(--azul-corporativo);
    color: var(--blanco);
    opacity: 1;
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.contacto-directo .whatsapp-btn:hover .fa-whatsapp {
    color: var(--blanco);
}

#proyectos-ocultos {
    display: none; 
}

.proyectos-grid-hidden {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

#proyectos-ocultos.visible {
    display: block;
}

.ver-mas-container {
    text-align: center;
    margin-top: 40px;
}

#ver-mas-btn {
    padding: 15px 30px;
    font-size: 1.1rem;
    transition: var(--transicion-suave);
}

#ver-mas-btn .fa-solid {
    margin-left: 10px;
    transition: transform 0.3s ease;
}

#ver-mas-btn.open .fa-chevron-down {
    transform: rotate(180deg);
}

/* --- ESTILOS DEFINITIVOS PARA MODAL --- */
.modal-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
    display: flex;
    justify-content: center;
    align-items: center;
    visibility: hidden;
    opacity: 0;
    transition: visibility 0s 0.3s, opacity 0.3s ease;
}
.modal-container.visible {
    visibility: visible;
    opacity: 1;
    transition-delay: 0s;
}
.modal-overlay {
    position: absolute;
    width: 100%;
    height: 100%;
    background-color: rgba(20, 42, 90, 0.7);
    backdrop-filter: blur(5px);
}
.modal-content {
    position: relative;
    background-color: var(--blanco);
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
    width: 90%;
    max-width: 900px;
    max-height: 90vh;
    overflow-y: auto;
    padding: 40px;
    transform: scale(0.95);
    transition: transform 0.3s ease;
}
.modal-container.visible .modal-content {
    transform: scale(1);
}

.modal-close-btn {
	position: absolute;
	top: 15px;
	right: 15px; 
	background-color: rgba(255, 255, 255, 0.2); 
	border: none;
	font-size: 2rem; 
	color: --azul-corporativo;
	cursor: pointer;
	line-height: 1;
	width: 35px;
	height: 35px;
	border-radius: 50%; 
	display: flex;
	justify-content: center;
	align-items: center;
	transition: background-color 0.3s ease, color 0.3s ease;
	z-index: 10;
}

.modal-close-btn:hover {
	background-color: rgba(255, 255, 255, 0.3); 
	color: var(--azul-corporativo);
}

.modal-body {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 30px;
    align-items: center;
}
.modal-image {
    min-height: 450px;
    width: 100%;
    border-radius: 8px;
    background-size: cover;
    background-position: center;
}
.modal-text h2 {
    font-size: 2.2rem;
    color: var(--azul-corporativo);
    margin-bottom: 15px;
}
.modal-text p {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 25px;
}
.modal-text ul {
    list-style: none;
    padding-left: 0;
}
.modal-text li {
    padding-left: 30px;
    position: relative;
    margin-bottom: 15px;
    font-size: 1.05rem;
}
.modal-text li::before {
    content: '\f058';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    color: var(--naranja-acento);
    position: absolute;
    left: 0;
    top: 2px;
}

.proyecto-meta {
    list-style: none;
    padding: 0;
    margin: 20px 0;
    border-top: 1px solid var(--gris-estructural);
    border-bottom: 1px solid var(--gris-estructural);
    padding: 15px 0;
}

.proyecto-meta li {
    padding-left: 0;
    margin-bottom: 8px;
    font-size: 1rem;
}

.proyecto-meta li::before {
    display: none;
}

.proyecto-meta strong {
    color: var(--azul-corporativo);
}

@media screen and (max-width: 768px) {
	#hero {
        padding: 30px 0;
    }
    .main-nav {
        position: fixed;
        top: 0;
        right: 0;
        width: 100%;
        height: 100vh;
        background-color: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(10px);
        transform: translateX(100%);
        transition: transform 0.3s ease-in-out;
        z-index: 1000;
    }
    .main-nav.nav-open {
        transform: translateX(0);
    }
    .main-nav ul {
        flex-direction: column;
        justify-content: center;
        align-items: center;
        height: 100%;
        gap: 40px;
    }
    .main-nav a {
        font-size: 1.5rem;
    }
    .hamburger-btn {
        display: block;
    }
    .hamburger-btn.is-active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    .hamburger-btn.is-active span:nth-child(2) {
        opacity: 0;
    }
    .hamburger-btn.is-active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
	h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.4rem;
    }

    section {
        padding: 60px 0;
    }
	.servicio-item {
        min-height: 350px;
    }
	#contacto {
        background-attachment: scroll; 
        padding: 60px 20px;
    }

    .contacto-box-wrapper {
        padding: 30px;
    }

    .contacto-box-wrapper h2 {
        font-size: 2rem;
    }
    
    .contact-form-nuevo .form-row {
        flex-direction: column;
        gap: 20px;
    }


    .modal-content {
        padding: 0;
        width: 95%;
        max-height: 85vh;
    }
    .modal-body {
        grid-template-columns: 1fr;
        gap: 0;
    }
    .modal-image {
        order: 1;
        height: 200px; 
        min-height: auto;
        border-radius: 8px 8px 0 0;
    }
    .modal-text {
        order: 2;
        padding: 30px 20px;
    }
    .modal-text h2 {
        font-size: 1.6rem;
    }
    .modal-text p {
        font-size: 1rem;
    }
    .modal-text li {
        font-size: 0.95rem;
        padding-left: 25px;
    }

}