/* ==========================================================================
   Variables y Configuración Base
   ========================================================================== */
:root {
    /* Paleta de Colores - Estricta Blanco/Negro/Grises */
    --color-white: #FFFFFF;
    --color-bg-light: #F8F9FA;
    /* Gris muy sutil para separar secciones */
    --color-bg-gray: #EDEDED;
    --color-text-main: #0B0B0C;
    /* Soft Black */
    --color-text-muted: #6B6B6B;
    --color-border: #E0E0E0;

    /* Tipografía */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Espaciado */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;

    /* Transiciones */
    --transition-fast: 0.2s ease-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s cubic-bezier(0.16, 1, 0.3, 1);

    /* Layout */
    --container-width: 1200px;
    --header-height: 80px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    color: var(--color-text-main);
    background-color: var(--color-white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

ul,
ol {
    list-style: none;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-normal);
}

img,
picture,
video,
canvas,
svg {
    display: block;
    max-width: 100%;
}

button,
input,
textarea,
select {
    font: inherit;
    background: none;
    border: none;
}

/* ==========================================================================
   Tipografía General
   ========================================================================== */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    color: var(--color-text-main);
    line-height: 1.1;
    font-weight: 600;
}

h1 {
    font-size: clamp(3rem, 5vw, 5rem);
    /* Tipografía grande solicitada */
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    letter-spacing: -0.01em;
}

h3 {
    font-size: 1.5rem;
}

p {
    color: var(--color-text-muted);
}

/* ==========================================================================
   Estructura y Utilidades
   ========================================================================== */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

section {
    padding: var(--spacing-xl) 0;
}

.bg-light {
    background-color: var(--color-bg-light);
}

/* ==========================================================================
   Botones Premium
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 500;
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.btn-primary {
    background-color: var(--color-text-main);
    color: var(--color-white);
    border: 1px solid var(--color-text-main);
}

.btn-primary:hover {
    background-color: var(--color-white);
    color: var(--color-text-main);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-text-main);
    border: 1px solid var(--color-border);
}

.btn-outline:hover {
    border-color: var(--color-text-main);
}

/* ==========================================================================
   Navegación / Header
   ========================================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    transition: transform var(--transition-normal);
}

/* Clase añadida con JS al hacer scroll down */
.header--scrolled {
    transform: translateY(-100%);
}

/* Clase añadida con JS al hacer scroll up */
.header--visible {
    transform: translateY(0);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo-link {
    display: flex;
    align-items: center;
    height: 30px;
}

/* Placeholder para logo - simularemos con CSS por ahora hasta tener la imagen */
.logo {
    height: 100%;
    width: auto;
    display: none;
    /* Oculto hasta tener src real */
}

/* Logo CSS Provisional */
.logo-link::after {
    content: 'NEXUM';
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: 0.1em;
}

.nav-list {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-text-main);
    transition: width var(--transition-normal);
}

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

.btn-nav {
    border: 1px solid var(--color-border);
    padding: 0.5rem 1.25rem;
    border-radius: 4px;
}

.btn-nav::after {
    display: none;
}

.btn-nav:hover {
    background-color: var(--color-text-main);
    color: var(--color-white);
    border-color: var(--color-text-main);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-text-main);
    transition: var(--transition-fast);
}

/* Responsive básico para navbar */
@media (max-width: 900px) {
    .nav-list {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }
}

/* ==========================================================================
   Sección 1: Hero / Inicio
   ========================================================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--header-height);
    /* Imagen Dinámica del Banner */
    background-image: linear-gradient(rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.4)), url('../assets/img/banner-home.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero-container {
    max-width: 900px;
    /* Ancho más contenido para dar sensación premium y leer mejor */
    margin: 0;
    margin-left: 10%;
    /* Empujar un poco a la derecha */
}

.hero-title {
    margin-bottom: var(--spacing-md);
    color: var(--color-white);
}

.hero-subtitle {
    font-size: 1.25rem;
    max-width: 600px;
    margin-bottom: var(--spacing-lg);
    color: var(--color-white);
}

.hero-ctas {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* Botón secundario outline blanco en Hero */
.hero .btn-outline {
    border: 1px solid var(--color-white);
    color: var(--color-white);
    background-color: transparent;
}

.hero .btn-outline:hover {
    background-color: var(--color-white);
    color: var(--color-text-main);
    border-color: var(--color-white);
}

/* ==========================================================================
   Utilidades Comunes
   ========================================================================== */
.text-center {
    text-align: center;
}

.section-header {
    max-width: 800px;
    margin: 0 auto var(--spacing-lg) auto;
}

.section-title {
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: 1.1rem;
}

/* ==========================================================================
   Secci�n 2: Inspiraci�n (Blog Minimalista)
   ========================================================================== */


.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.blog-card {
    background-color: var(--color-white);
    border-radius: 8px;
    /* Bordes redondeados sutiles */
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
    /* Sombra muy suave para look Endor */
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    border: 1px solid var(--color-border);
    /* A�adido un borde fino para mayor limpieza */
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.blog-card-img {
    width: 100%;
    height: 200px;
    background-color: var(--color-bg-gray);
    /* Placeholder color para imagen */
    position: relative;
    overflow: hidden;
}

/* Simulaci�n de imagen temporal */
.placeholder-img::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    background-color: var(--color-border);
    border-radius: 50%;
    opacity: 0.5;
}

.blog-card-content {
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    height: calc(100% - 200px);
    /* Ajusta a lo que resta menos la imagen */
}

.blog-card-title {
    margin-bottom: var(--spacing-xs);
    font-size: 1.25rem;
}

.blog-card-excerpt {
    font-size: 0.95rem;
    margin-bottom: var(--spacing-md);
    flex-grow: 1;
    /* Empuja el bot�n al fondo si el texto es corto */
}

.blog-read-more {
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.blog-read-more:hover {
    color: var(--color-text-muted);
}

.btn {
    padding: 1rem 2rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 1rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.btn-primary {
    background: var(--color-text-main);
    color: var(--color-white);
    border: 1px solid var(--color-text-main);
}

.btn-primary:hover {
    background: var(--color-white);
    color: var(--color-text-main);
}

.btn-outline {
    border: 1px solid var(--color-border);
    color: var(--color-text-main);
    background-color: transparent;
}

.btn-outline:hover {
    border-color: var(--color-text-main);
}

/* ==========================================================================
   Sección 3: Servicios (Carrusel)
   ========================================================================== */
.carousel-wrapper {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    padding: 0 40px;
}

.carousel-container {
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    background: var(--color-white);
    border: 1px solid var(--color-border);
}

.carousel-track {
    display: flex;
    transition: transform 0.5s ease-in-out;
}

.carousel-slide {
    min-width: 100%;
    display: flex;
    flex-direction: column;
}

.carousel-image {
    width: 100%;
    height: 350px;
    background-size: cover;
    background-position: center;
}

.carousel-content {
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.service-icon {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-main);
}

.service-title {
    margin-bottom: var(--spacing-sm);
    font-size: 1.5rem;
}

.service-bullets {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.service-bullets li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-text-muted);
}

.bullet-dot {
    width: 6px;
    height: 6px;
    background-color: var(--color-text-main);
    border-radius: 50%;
}

.carousel-button {
    position: absolute;
    top: calc(50% - 20px - 20px); /* adjusted slightly up for visual balance */
    background: var(--color-white);
    border: 1px solid var(--color-border);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    transition: all var(--transition-normal);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.carousel-button:hover {
    background: var(--color-text-main);
    color: var(--color-white);
    border-color: var(--color-text-main);
}

.carousel-prev {
    left: -10px;
}

.carousel-next {
    right: -10px;
}

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: var(--spacing-md);
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--color-border);
    cursor: pointer;
    transition: background-color var(--transition-normal);
    padding: 0;
}

.dot.active {
    background-color: var(--color-text-main);
}

/* ==========================================================================
   Sección 4: Metodología
   ========================================================================== */
.methodology-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg) var(--spacing-md);
    position: relative;
    text-align: center;
}

/* Línea conectora horizontal en desktop */
@media (min-width: 900px) {
    .methodology-steps::before {
        content: '';
        position: absolute;
        top: 24px;
        left: 50px;
        right: 50px;
        height: 1px;
        background-color: var(--color-border);
        z-index: 0;
    }
}

.step {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.step-number {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--color-text-main);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    box-shadow: 0 0 0 10px var(--color-bg-light); /* Para enmascarar la línea */
}

.step-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.step p {
    font-size: 0.95rem;
}

/* ==========================================================================
   Sección 5: Experiencia / Sectores
   ========================================================================== */
.experiencia-layout {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    align-items: center;
}

@media (min-width: 900px) {
    .experiencia-layout {
        flex-direction: row;
        align-items: stretch;
        max-width: 1000px;
        margin: 0 auto;
    }
}

.experiencia-image-col {
    width: 100%;
    max-width: 400px;
}

@media (min-width: 900px) {
    .experiencia-image-col {
        flex: 1;
        max-width: 50%;
    }
}

.experiencia-image {
    width: 100%;
    aspect-ratio: 1 / 1;
    background-color: var(--color-bg-gray);
    border-radius: 8px;
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
    transition: background-color var(--transition-normal), opacity var(--transition-normal);
}

.experiencia-image::after {
    /* Mantenemos el ícono temporal de placeholder */
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    background-color: var(--color-border);
    border-radius: 50%;
    opacity: 0.5;
    transition: opacity 0.3s;
}



.sectors-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    width: 100%;
}

@media (min-width: 900px) {
    .sectors-grid {
        flex: 1;
        justify-content: flex-start;
        align-content: center;
        padding-left: var(--spacing-lg);
    }
}

.sector-item {
    padding: 0.75rem 1.5rem;
    border: 1px solid var(--color-border);
    border-radius: 50px;
    font-size: 0.95rem;
    transition: all var(--transition-normal);
    cursor: pointer;
    background-color: var(--color-white);
}

.sector-item:hover, .sector-item.active {
    background-color: var(--color-text-main);
    color: var(--color-white);
    border-color: var(--color-text-main);
}

/* ==========================================================================
   Sección 6: Sobre Nosotros
   ========================================================================== */
.nosotros {
    background-image: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('../assets/img/mapa_nosotros.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: var(--color-white);
}

.nosotros .section-title,
.nosotros p {
    color: var(--color-white);
}

.nosotros-container {
    max-width: 800px;
    text-align: center;
}

.nosotros-content p {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-sm);
}

/* ==========================================================================
   Sección 7: Contacto
   ========================================================================== */
.contacto-wrapper {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 900px) {
    .contacto-wrapper {
        grid-template-columns: 1fr 1fr;
        align-items: start;
    }
}

.contacto-desc {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
}

.contacto-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.detail-label {
    display: block;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    margin-bottom: 0.25rem;
}

.detail-value {
    font-size: 1.25rem;
    font-weight: 500;
}

.detail-value:hover {
    text-decoration: underline;
}

.form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.form-control {
    width: 100%;
    padding: 1rem 0;
    border-bottom: 1px solid var(--color-border);
    font-size: 1rem;
    outline: none;
    transition: border-color var(--transition-normal);
    color: var(--color-text-main);
}

.form-control::placeholder {
    color: var(--color-text-muted);
}

.form-control:focus {
    border-color: var(--color-text-main);
}

.btn-submit {
    align-self: flex-start;
    margin-top: 1rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    padding: var(--spacing-md) 0;
    border-top: 1px solid var(--color-border);
}

.footer-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

@media (min-width: 600px) {
    .footer-container {
        flex-direction: row;
        justify-content: space-between;
    }
}

.logo-text {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: 0.1em;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
    font-size: 0.9rem;
}

.footer-links a:hover {
    color: var(--color-text-main);
}

.footer-copy {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}