/* RESET DE ESTILOS Y VARIABLES */
:root {
    --bg-dominante: #F8F9FA;      /* 60% Fondo Limpio e Industrial */
    --txt-secundario: #0F172A;    /* 30% Azul Oxford Corporativo */
    --txt-mutado: #475569;        /* Gris para textos secundarios */
    --acento-verde: #16A34A;      /* 10% Verde de Acción/Conversión */
    --acento-verde-hover: #15803D;
    --borde: #E2E8F0;
}

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

html {
    scroll-behavior: smooth;
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dominante);
    color: var(--txt-secundario);
}

body {
    padding-top: 70px; /* Espacio para la barra de navegación fija */
}

/* NAVBAR */
.navbar {
    background-color: #ffffff;
    border-bottom: 1px solid var(--borde);
    position: fixed;
    top: 0;
    width: 100%;
    height: 70px;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    padding: 0 20px;
}

.logo {
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--txt-secundario);
    text-decoration: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--txt-mutado);
    margin-left: 25px;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--txt-secundario);
}

.nav-links .btn-nav {
    background-color: var(--txt-secundario);
    color: #ffffff;
    padding: 8px 16px;
    border-radius: 6px;
}

.nav-links .btn-nav:hover {
    background-color: var(--txt-mutado);
    color: #ffffff;
}

/* SECCIONES COMUNES */
.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 80px 20px;
}

h2 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 10px;
    text-align: center;
    letter-spacing: -0.02em;
}

.section-subtitle {
    text-align: center;
    color: var(--txt-mutado);
    margin-bottom: 50px;
    font-size: 1.1rem;
}

/* SECCIÓN HERO (INICIO) */
.hero-section {
    background-color: #ffffff;
    border-bottom: 1px solid var(--borde);
    padding: 100px 20px;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.badge {
    background-color: var(--borde);
    color: var(--txt-secundario);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    display: inline-block;
    margin-bottom: 20px;
}

.hero-section h1 {
    font-size: 3.2rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 25px;
    letter-spacing: -0.03em;
}

.hero-lead {
    font-size: 1.25rem;
    color: var(--txt-mutado);
    line-height: 1.6;
    margin-bottom: 50px;
}

.hero-logos span {
    font-size: 0.85rem;
    color: var(--txt-mutado);
    text-transform: uppercase;
    font-weight: 600;
    display: block;
    margin-bottom: 15px;
}

.logo-grid {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.logo-item {
    font-weight: 600;
    color: var(--txt-secundario);
    background-color: var(--bg-dominante);
    padding: 10px 20px;
    border-radius: 6px;
    border: 1px solid var(--borde);
}

/* PORTFOLIO / TARJETAS DE PROYECTO */
.portfolio-section {
    background-color: var(--bg-dominante);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.project-card {
    background-color: #ffffff;
    border: 1px solid var(--borde);
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
}

.card-body {
    padding: 30px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.tech-tag {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--acento-verde);
    text-transform: uppercase;
    margin-bottom: 10px;
    display: block;
}

.project-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
}

.project-card p {
    color: var(--txt-mutado);
    line-height: 1.5;
    margin-bottom: 30px;
    font-size: 0.95rem;
}

.card-actions {
    margin-top: auto;
    display: flex;
    gap: 15px;
}

/* BOTONES */
.btn-primary, .btn-secondary {
    text-decoration: none;
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.95rem;
    text-align: center;
    transition: background-color 0.2s;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--acento-verde); /* El 10% de acento resalta acá */
    color: #ffffff;
}

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

.btn-secondary {
    background-color: var(--bg-dominante);
    color: var(--txt-secundario);
    border: 1px solid var(--borde);
}

.btn-secondary:hover {
    background-color: var(--borde);
}

.coming-soon {
    font-size: 0.85rem;
    font-style: italic;
    color: var(--txt-mutado);
    margin-top: auto;
}

/* UTN SECCIÓN */
.utn-section {
    background-color: #ffffff;
    border-top: 1px solid var(--borde);
    border-bottom: 1px solid var(--borde);
}

.utn-box {
    max-width: 850px;
    margin: 0 auto;
    background-color: var(--bg-dominante);
    border: 1px solid var(--borde);
    border-radius: 12px;
    padding: 50px;
}

.utn-box h2 {
    text-align: left;
    margin-bottom: 20px;
}

.utn-box p {
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--txt-mutado);
    margin-bottom: 30px;
}

.utn-services {
    list-style: none;
    margin-bottom: 40px;
}

.utn-services li {
    margin-bottom: 15px;
    position: relative;
    padding-left: 25px;
    line-height: 1.5;
}

.utn-services li::before {
    content: "✓";
    color: var(--acento-verde);
    font-weight: 700;
    position: absolute;
    left: 0;
}

/* SECCIÓN CONTACTO */
.contact-section {
    background-color: var(--bg-dominante);
    text-align: center;
}

.contact-section p {
    color: var(--txt-mutado);
    margin-bottom: 40px;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact-form input, .contact-form textarea {
    width: 100%;
    padding: 14px;
    border: 1px solid var(--borde);
    border-radius: 6px;
    font-family: inherit;
    font-size: 1rem;
    outline: none;
}

.contact-form input:focus, .contact-form textarea:focus {
    border-color: var(--txt-secundario);
}

/* FOOTER */
footer {
    background-color: var(--txt-secundario);
    color: #ffffff;
    text-align: center;
    padding: 30px 20px;
    font-size: 0.9rem;
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .hero-section h1 { font-size: 2.2rem; }
    .nav-links { display: none; } /* En móviles se simplifica, ideal para implementaciones futuras */
    .utn-box { padding: 30px; }
}

/* DISEÑO DEL SHOWROOM GIS EN DOS COLUMNAS */
.gis-showroom-container {
    display: grid;
    grid-template-columns: 450px 1fr;
    background-color: #ffffff;
    border: 1px solid var(--borde);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
    margin-top: 20px;
}

.gis-sidebar {
    padding: 40px;
    border-right: 1px solid var(--borde);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.sidebar-desc {
    font-size: 0.95rem;
    color: var(--txt-mutated);
    line-height: 1.5;
    margin-top: 10px;
    margin-bottom: 25px;
}

.instruction-block {
    background-color: var(--bg-dominante);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 25px;
}

.instruction-block h4 {
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.instruction-block ul {
    list-style: none;
}

.instruction-block li {
    font-size: 0.85rem;
    line-height: 1.5;
    margin-bottom: 10px;
    color: var(--txt-mutated);
}

.instruction-block li:last-child {
    margin-bottom: 0;
}

.sidebar-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* COLUMNA DERECHA: PREVIZUALIZACIÓN DEL MAPA */
.gis-visual-preview {
    position: relative;
    background-color: #e5e7eb;
    min-height: 450px;
}

.mock-map-bg {
    position: absolute;
    width: 100%;
    height: 100%;
    /* Reemplazamos por un patrón visual gris simulando rejilla de ingeniería */
    background-image: linear-gradient(var(--borde) 1px, transparent 1px), linear-gradient(90deg, var(--borde) 1px, transparent 1px);
    background-size: 20px 20px;
    background-color: #f1f5f9;
}

.preview-overlay {
    position: absolute;
    z-index: 10;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.03);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    text-align: center;
}

.preview-overlay span {
    background: #ffffff;
    padding: 12px 24px;
    border-radius: 30px;
    font-size: 0.85rem;
    font-weight: 600;
    box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1);
    border: 1px solid var(--borde);
    color: var(--txt-mutated);
}

/* SECCIÓN VALIDACIÓN UTN */
.institution-tag {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--txt-mutated);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: block;
    margin-bottom: 5px;
}

.validation-block {
    background-color: #ffffff;
    border-left: 4px solid var(--txt-secundario);
    padding: 20px;
    border-radius: 0 8px 8px 0;
    margin-top: 30px;
}

.validation-block p {
    font-size: 0.9rem !important;
    margin-bottom: 0 !important;
    color: var(--txt-secundario) !important;
}

.utn-link {
    color: var(--acento-verde);
    font-weight: 600;
    text-decoration: underline;
}

.utn-link:hover {
    color: var(--acento-verde-hover);
}

/* RESPONSIVE PARA EL SHOWROOM */
@media (max-width: 992px) {
    .gis-showroom-container {
        grid-template-columns: 1fr;
    }
    .gis-sidebar {
        border-right: none;
        border-bottom: 1px solid var(--borde);
    }
    .gis-visual-preview {
        min-height: 300px;
    }
}