/* ==================================================
    CSS VARIABLES & THEMING
================================================== */
:root {
    --color-bg: #FFFFFF;
    --color-text: #0B132B;
    --color-surface: #F8F9FA;
    --color-primary: #0B132B; 
    --color-accent: #1C77C3; 
    --color-border: #E9ECEF;
    --font-main: 'Plus Jakarta Sans', sans-serif;
    --transition: all 0.3s ease;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    transition: var(--transition);
    overflow-x: hidden;
}

/* ==================================================
    TYPOGRAPHY & UTILITIES
================================================== */
h1, h2, h3, h4 { font-weight: 700; line-height: 1.2; margin-bottom: 1rem; }
h1 { font-size: clamp(2.5rem, 4vw, 4rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(2rem, 4vw, 3.5rem); }
h3 { font-size: 1.5rem; }
p { font-size: 1.125rem; opacity: 0.85; margin-bottom: 1.5rem; max-width: 600px; }

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    background: var(--color-text);
    color: var(--color-bg);
    text-decoration: none;
    font-weight: 600;
    border-radius: 4px;
    transition: var(--transition);
    border: 1px solid transparent;
    cursor: pointer;
}

.btn:hover {
    background: var(--color-accent);
    color: #FFF;
}

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

.btn-outline:hover {
    background: var(--color-text);
    color: var(--color-bg);
}

/* Language visibility */
[lang="en"] { display: none; }
body.lang-en [lang="es"] { display: none; }
body.lang-en [lang="en"] { display: block; }
span[lang="en"] { display: none; }
body.lang-en span[lang="es"] { display: none; }
body.lang-en span[lang="en"] { display: inline; }

/* The 4 Dots Motif */
.four-dots {
    display: inline-flex;
    gap: 6px;
    margin-bottom: 1rem;
}
.dot {
    width: 8px;
    height: 8px;
    background-color: var(--color-accent);
    border-radius: 50%;
}

/* ==================================================
    NAVIGATION (Pegado a la derecha)
================================================== */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1.5rem 0;
    background: rgba(var(--color-bg), 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--color-border);
    transition: padding 0.3s ease;
}
nav.scrolled { padding: 1rem 0; }

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

.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
}
.logo-img {
    height: 40px; 
    width: auto;
    object-fit: contain;
    transition: var(--transition);
}

/* Agrupamos los enlaces y controles a la derecha */
.nav-right {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-links { display: flex; gap: 2rem; align-items: center; }
.nav-links a { color: var(--color-text); text-decoration: none; font-weight: 600; font-size: 0.9rem; transition: color 0.3s; }
.nav-links a:hover { color: var(--color-accent); }

.controls { display: flex; gap: 1rem; align-items: center; }
.toggle-btn { background: none; border: none; color: var(--color-text); cursor: pointer; font-weight: 600; font-size: 0.9rem;}

/* ==================================================
    SECTIONS
================================================== */
section { padding: 8rem 0; }

/* HERO - DISEÑO DIVIDIDO */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background-color: var(--color-bg);
    padding-top: 5rem;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-media {
    display: flex;
    justify-content: center;
    align-items: center;
}

.vertical-video {
    width: 100%;
    max-width: 360px;
    aspect-ratio: 9/16;
    object-fit: cover;
    border-radius: 24px;
    box-shadow: 0 20px 40px rgba(11, 19, 43, 0.15);
}

/* Data Carousel (Loop Infinito optimizado) */
.data-carousel {
    background: var(--color-surface);
    padding: 4rem 0;
    overflow: hidden;
    white-space: nowrap;
    position: relative;
}

.carousel-track {
    display: inline-flex;
    gap: 4rem;
    animation: scroll 35s linear infinite;
    width: max-content;
}

.stat-card {
    display: inline-block;
    min-width: 300px;
    white-space: normal;
}
.stat-card h2 { font-size: 4rem; color: var(--color-accent); margin-bottom: 0.5rem; }
.stat-card p { font-size: 1rem; margin-bottom: 0.5rem; }
.stat-card small { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 1px; opacity: 0.5; }

@keyframes scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* Grids y Tarjetas */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-top: 4rem;
}

.service-card {
    background: var(--color-surface);
    padding: 3rem;
    border-radius: 8px;
    border: 1px solid var(--color-border);
    transition: var(--transition);
}
.service-card:hover { transform: translateY(-10px); border-color: var(--color-accent); }

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}
.project-card {
    background: var(--color-surface);
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--color-border);
}
.project-visual {
    width: 100%;
    height: 250px;
    background: var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
}
.project-info { padding: 2rem; }
.project-tag { 
    display: inline-block; 
    padding: 0.25rem 0.75rem; 
    background: var(--color-accent); 
    color: #FFF; 
    font-size: 0.75rem; 
    font-weight: 700; 
    border-radius: 20px; 
    margin-bottom: 1rem;
}

/* Equipo */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}
.team-card { text-align: center; }
.team-photo {
    width: 100%;
    aspect-ratio: 1;
    background: var(--color-surface);
    border-radius: 8px;
    margin-bottom: 1.5rem;
    border: 1px solid var(--color-border);
    overflow: hidden;
}
.team-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Contacto y Formulario */
.cta-section { background: var(--color-primary); color: var(--color-bg); }
.cta-section .color-flip { color: var(--color-bg); }
.cta-section p { color: var(--color-bg); }
.cta-grid {
    display: grid;
    grid-template-columns: 1fr 1fr; 
    gap: 5rem; 
    align-items: center;
}
.form-group { margin-bottom: 1rem; }
.form-control {
    width: 100%;
    padding: 0.75rem;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    color: var(--color-bg);
    border-radius: 4px;
    font-family: inherit;
    font-size: 0.9rem;
}

/* Footer */
footer { padding: 4rem 0; border-top: 1px solid var(--color-border); font-size: 0.9rem; }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 2rem; }
.footer-grid ul { list-style: none; }
.footer-grid a { color: var(--color-text); text-decoration: none; opacity: 0.8; }
.footer-grid a:hover { opacity: 1; color: var(--color-accent); }

/* Animaciones */
.fade-in { opacity: 0; transform: translateY(20px); transition: opacity 0.8s ease, transform 0.8s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* Responsivo (Celulares) */
@media (max-width: 768px) {
    .nav-links { display: none; }
    section { padding: 5rem 0; }
    .hero-grid { 
        grid-template-columns: 1fr; 
        text-align: center;
        gap: 2rem;
    }
    .hero-text { order: 1; }
    .hero-media { order: 2; }
    .cta-grid { 
        grid-template-columns: 1fr; 
        gap: 3rem; 
    }
}