:root {
    --negro-absoluto: #000000;
    --negro-suave: #1a1a1a;
    --gris-texto: #666666;
    --blanco-puro: #ffffff;
    --blanco-roto: #fafafa;
    --m-light-blue: #00A1E4;
    --m-dark-blue: #012169;
    --m-red: #E32221;
}

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

body {
    font-family: 'Inter', sans-serif;
    color: var(--negro-suave);
    background-color: var(--blanco-puro);
    -webkit-font-smoothing: antialiased;
    line-height: 1.6;
    padding-top: 0;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

.m-stripe {
    display: flex;
    height: 4px;
    width: 100%;
}

.stripe-light-blue { background-color: var(--m-light-blue); flex: 1; }
.stripe-dark-blue { background-color: var(--m-dark-blue); flex: 1; }
.stripe-red { background-color: var(--m-red); flex: 1; }

.header-premium {
    position: absolute;
    top: 4px;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 30px 0;
}

.sticky-header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 25px 0;
    transition: all 0.4s ease;
    background-color: transparent;
}

.sticky-header.scrolled {
    background-color: rgba(0, 0, 0, 0.95);
    padding: 15px 0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.5);
}

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

.logo-img { 
    max-height: 40px; 
    filter: brightness(0) invert(1); 
    transition: all 0.4s ease;
}

.header-derecha {
    display: flex;
    align-items: center;
    gap: 30px;
}

.especialidad-tag {
    color: var(--blanco-puro);
    font-size: 0.75rem;
    letter-spacing: 3px;
    font-weight: 400;
    opacity: 0.8;
}

.btn-llamar-nav {
    color: var(--negro-absoluto);
    background-color: var(--blanco-puro);
    padding: 10px 25px;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 1px;
    transition: all 0.4s ease;
}

.btn-llamar-nav:hover {
    background-color: var(--m-dark-blue);
    color: var(--blanco-puro);
}

.marcas-oficiales-header {
    display: flex;
    gap: 15px;
    align-items: center;
    margin-right: 15px;
    border-right: 1px solid rgba(255,255,255,0.2);
    padding-right: 25px;
}

.marcas-oficiales-header img {
    height: 35px;
    width: auto;
    object-fit: contain;
}

.hero-cinematico {
    height: 100vh;
    background: url('../img/fachada.jpg') center/cover no-repeat;
    display: flex;
    align-items: center;
    position: relative;
}

.hero-overlay-oscuro {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: 1;
}

.hero-contenido {
    position: relative;
    z-index: 2;
    color: var(--blanco-puro);
    max-width: 900px;
}

.hero-contenido h1 {
    font-size: 4.5rem;
    font-weight: 200;
    line-height: 1.05;
    letter-spacing: -1px;
    margin-bottom: 30px;
}

.hero-contenido p {
    font-size: 1.2rem;
    font-weight: 300;
    opacity: 0.8;
    margin-bottom: 50px;
    max-width: 600px;
}

.btn-solido {
    display: inline-block;
    background-color: var(--blanco-puro);
    color: var(--negro-absoluto);
    padding: 18px 45px;
    text-decoration: none;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.85rem;
    transition: all 0.4s ease;
}

.btn-solido:hover {
    background-color: var(--m-light-blue);
    color: var(--blanco-puro);
}

.seccion-manifiesto {
    padding: 150px 0;
    background-color: var(--blanco-puro);
}

.titulo-fino {
    font-size: 2.5rem;
    font-weight: 300;
    letter-spacing: 4px;
    color: var(--negro-absoluto);
}

.linea-separadora {
    width: 60px;
    height: 1px;
    background-color: var(--negro-absoluto);
    margin: 40px auto;
}

.texto-grande {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--gris-texto);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

.logos-manifiesto {
    margin-top: 50px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
}

.logos-manifiesto img {
    height: 60px;
    width: auto;
    object-fit: contain;
    opacity: 0.9;
    transition: transform 0.4s ease, opacity 0.4s ease;
}

.logos-manifiesto img:hover {
    opacity: 1;
    transform: scale(1.05);
}

.seccion-servicios-editorial {
    padding-bottom: 150px;
}

.servicio-fila {
    display: flex;
    align-items: center;
    border-top: 1px solid #e0e0e0;
    padding: 60px 0;
}

.servicio-fila:last-child {
    border-bottom: 1px solid #e0e0e0;
}

.servicio-fila.reverse {
    flex-direction: row-reverse;
}

.servicio-fila.reverse .servicio-txt {
    padding-right: 0;
    padding-left: 80px;
}

.servicio-num {
    flex: 0 0 100px;
    font-size: 3rem;
    font-weight: 200;
    color: #cccccc;
}

.servicio-txt {
    flex: 1;
    padding-right: 80px;
}

.servicio-txt h3 {
    font-size: 1.8rem;
    font-weight: 400;
    margin-bottom: 15px;
    color: var(--negro-absoluto);
}

.servicio-txt p {
    font-size: 1.1rem;
    color: var(--gris-texto);
    font-weight: 300;
}

.servicio-img {
    flex: 0 0 400px;
    height: 250px;
    overflow: hidden;
}

.servicio-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(100%);
    transition: transform 0.8s ease, filter 0.8s ease;
}

.servicio-fila:hover .servicio-img img {
    filter: grayscale(0%);
    transform: scale(1.05);
}

.seccion-galeria-mosaico {
    background-color: var(--negro-absoluto);
}

.grid-mosaico {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
}

.grid-mosaico img {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    filter: grayscale(80%) brightness(0.6);
    transition: all 0.5s ease;
}

.grid-mosaico img:hover {
    filter: grayscale(0%) brightness(1);
    transform: scale(1.02);
    z-index: 10;
    position: relative;
}

.seccion-contacto-split {
    display: flex;
    height: 600px;
}

.contacto-datos-dark {
    flex: 1;
    background-color: var(--negro-absoluto);
    color: var(--blanco-puro);
    display: flex;
    align-items: center;
    padding: 0 10%;
}

.text-blanco { color: var(--blanco-puro) !important; }

.linea-separadora-blanca {
    width: 60px; height: 1px; background-color: var(--blanco-puro); margin: 30px 0;
}

.bloque-info { margin-bottom: 40px; }

.bloque-info h4 {
    font-size: 0.75rem;
    letter-spacing: 2px;
    color: #888;
    margin-bottom: 10px;
    font-weight: 600;
}

.bloque-info p {
    font-size: 1.1rem;
    font-weight: 300;
    color: #ccc;
}

.link-telefono {
    font-size: 2rem;
    font-weight: 300;
    color: var(--blanco-puro);
    text-decoration: none;
    transition: color 0.3s;
}

.link-telefono:hover { color: var(--m-light-blue); }

.contacto-mapa-dark {
    flex: 1;
}

.contacto-mapa-dark iframe {
    filter: invert(90%) hue-rotate(180deg) contrast(1.1);
}

.footer-ultra {
    background-color: var(--negro-suave);
    color: #666;
    padding: 40px 0;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

.footer-logos-small {
    display: flex;
    gap: 15px;
    align-items: center;
}

.footer-logos-small img {
    height: 25px;
    width: auto;
    filter: grayscale(100%) opacity(0.5); 
    transition: all 0.4s ease;
}

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

.links-legales a {
    color: #666;
    text-decoration: none;
    margin-left: 30px;
    transition: color 0.3s;
}

.links-legales a:hover { color: var(--blanco-puro); }

/*RESPONSIVE*/
@media (max-width: 1000px) {
    .hero-contenido h1 { font-size: 3.5rem; }
    
    .servicio-fila, .servicio-fila.reverse { 
        flex-direction: column; 
        align-items: flex-start; 
        gap: 30px; 
        padding: 60px 0; 
    }
    
    .servicio-txt { 
        padding-right: 0; 
        padding-left: 0 !important;
        width: 100%; 
    }
    
    .servicio-img { 
        width: 100%; 
        flex: auto; 
        height: 350px; 
    }
    
    .seccion-contacto-split { 
        flex-direction: column; 
        height: auto; 
    }
    
    .contacto-datos-dark { padding: 80px 40px; }
    
    .contacto-mapa-dark { height: 400px; width: 100%; }
    
    .grid-mosaico { grid-template-columns: repeat(2, 1fr); }
    
    .marcas-oficiales-header {
        border-right: none;
        padding-right: 0;
        margin-right: 0;
    }
    
    .logos-manifiesto img { height: 45px; }
    
    .footer-flex {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}

@media (max-width: 768px) {
    /* Devolvemos un poco de aire a los márgenes laterales */
    .container { padding: 0 25px; }
    
    /* Cabecera equilibrada: ni gigante ni aplastada */
    .header-premium { 
        background-color: rgba(0, 0, 0, 0.95); 
        padding: 15px 0; 
        position: fixed;
    }
    
    .sticky-header.scrolled { padding: 15px 0; }
    
    .header-flex { 
        flex-direction: row; 
        justify-content: space-between;
        align-items: center;
        gap: 0; 
    }
    
    /* Logo con un tamaño decente y profesional */
    .logo-img { max-height: 35px; }
    
    .header-derecha { 
        flex-direction: row; 
        gap: 15px; 
    }
    
    .marcas-oficiales-header { display: none; }
    
    .especialidad-tag { display: none; }
    
    /* Botón con buen tamaño para poder pulsarlo con el dedo cómodamente */
    .btn-llamar-nav {
        padding: 10px 18px;
        font-size: 0.85rem;
        letter-spacing: 1px;
    }
    
    .hero-cinematico { height: 90vh; text-align: center; }
    
    .hero-contenido h1 { font-size: 2.6rem; margin-top: 20px; line-height: 1.1; }
    
    .hero-contenido p { font-size: 1.1rem; margin: 0 auto 40px auto; width: 100%; }
    
    .seccion-manifiesto { padding: 80px 0; }
    
    .titulo-fino { font-size: 2rem; letter-spacing: 2px; margin-bottom: 20px; }
    
    .texto-grande { font-size: 1.1rem; }
    
    .logos-manifiesto { gap: 30px; margin-top: 40px; }
    
    .logos-manifiesto img { height: 45px; }
    
    .seccion-servicios-editorial { padding-bottom: 80px; }
    
    .servicio-fila { padding: 50px 0; gap: 20px; }
    
    .servicio-num { font-size: 2.5rem; margin-bottom: 5px; flex: 0 0 auto; }
    
    .servicio-txt h3 { font-size: 1.6rem; }
    
    .servicio-txt p { font-size: 1.05rem; }
    
    .servicio-img { height: 260px; }
    
    .contacto-datos-dark { padding: 80px 25px; text-align: center; }
    
    .linea-separadora-blanca { margin: 25px auto; }
    
    .bloque-info h4 { font-size: 0.8rem; margin-bottom: 12px; }
    
    .bloque-info p { font-size: 1.05rem; }
    
    .link-telefono { font-size: 1.8rem; display: inline-block; margin-top: 5px; }
    
    .contacto-mapa-dark { height: 400px; }
    
    .footer-ultra { padding: 50px 0; text-align: center; }
    
    .footer-flex { flex-direction: column; gap: 25px; }
    
    .footer-logos-small { justify-content: center; }
    
    .links-legales { display: flex; justify-content: center; flex-direction: column; gap: 15px; }
    
    .links-legales a { margin: 0; }
}