:root {
    --oscuro: #1a1a1a;
    --gris-suave: #f9f9f9;
    --fuente: 'Montserrat', sans-serif;
}

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

body {
    font-family: var(--fuente);
    background-color: #ffffff;
    color: var(--oscuro);
}

/* NAVBAR */
.navbar {
    display: flex;
    justify-content: space-between;
    padding: 2rem 5%;
    align-items: center;
    background: #fff;
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo h1 { letter-spacing: 5px; font-size: 1.5rem; }
.logo span { display: block; font-size: 0.6rem; letter-spacing: 2px; }

nav ul { display: flex; list-style: none; }
nav ul li { margin-left: 2rem; }
nav ul li a { color: var(--oscuro); text-decoration: none; font-size: 0.8rem; letter-spacing: 2px; opacity: 0.5; }
.active { opacity: 1 !important; font-weight: 700; }

/* CONTENEDOR DE PROYECTOS */
.project-page {
    display: flex;
    height: 90vh;
    align-items: center;
    border-bottom: 1px solid #eee;
}

.project-page.alternate {
    flex-direction: row-reverse;
    background-color: var(--gris-suave);
}

.project-media {
    flex: 1.2;
    height: 100%;
    overflow: hidden;
}

.project-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(20%);
    transition: 0.8s;
}

.project-page:hover img {
    filter: grayscale(0%);
    transform: scale(1.02);
}

.project-details {
    flex: 0.8;
    padding: 0 8%;
}

.number {
    font-size: 5rem;
    font-weight: 800;
    color: #efefef;
    display: block;
    line-height: 1;
    margin-bottom: -20px;
}

.project-details h2 {
    font-size: 2.5rem;
    letter-spacing: -1px;
    margin-bottom: 30px;
    line-height: 1.1;
}

.project-meta {
    margin-bottom: 30px;
    border-left: 2px solid #000;
    padding-left: 20px;
}

.project-meta p {
    font-size: 0.9rem;
    margin-bottom: 5px;
    color: #666;
}

.description {
    font-weight: 300;
    line-height: 1.8;
    color: #444;
}

/* CTA FINAL */
.contact-cta {
    padding: 100px 5%;
    text-align: center;
    background: var(--oscuro);
    color: white;
}

.contact-cta a {
    color: white;
    font-weight: 700;
    margin-left: 10px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* RESPONSIVO */
@media (max-width: 900px) {
    .project-page, .project-page.alternate {
        flex-direction: column;
        height: auto;
    }
    .project-media { width: 100%; height: 400px; }
    .project-details { padding: 60px 10%; }
}