.libros-publico {
    color: var(--texto);
    background: var(--fondo);
}

.libros-publico-hero {
    padding: clamp(48px, 7vw, 82px) 0 clamp(38px, 5vw, 62px);
    border-bottom: 1px solid rgba(0, 0, 0, .08);
    background: var(--secundario);
}

.libros-publico-hero p,
.libros-publico-cabecera > p {
    margin: 0 0 8px;
    color: var(--principal);
    font-size: .78rem;
    font-weight: 800;
    letter-spacing: .1em;
    text-transform: uppercase;
}

.libros-publico-hero h1,
.libros-publico-cabecera h2,
.libros-publico-card h3 {
    color: var(--texto);
}

.libros-publico-hero h1 {
    max-width: 850px;
    margin: 0;
    font-size: clamp(2rem, 5vw, 4rem);
    line-height: 1.03;
}

.libros-publico-hero span {
    display: block;
    max-width: 760px;
    margin-top: 14px;
    color: var(--texto);
    line-height: 1.65;
    opacity: .82;
}

.libros-publico-seccion {
    padding: clamp(44px, 7vw, 76px) 0;
}

.libros-publico-contenedor {
    max-width: 980px;
}

.libros-publico-cabecera {
    margin-bottom: 22px;
}

.libros-publico-cabecera h2 {
    margin: 0;
    font-size: clamp(1.55rem, 3.2vw, 2.25rem);
}

.libros-publico-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.libros-publico-card {
    display: flex;
    flex-direction: column;
    padding: clamp(22px, 4vw, 30px);
    border: 1px solid rgba(0, 0, 0, .1);
    border-radius: 20px;
    background: var(--blanco, #fff);
    box-shadow: 0 12px 30px rgba(0, 0, 0, .06);
}

.libros-publico-etiqueta {
    width: fit-content;
    margin-bottom: 12px;
    padding: 6px 9px;
    border-radius: 999px;
    color: var(--principal-oscuro);
    background: var(--secundario);
    font-size: .74rem;
    font-weight: 800;
    letter-spacing: .05em;
    text-transform: uppercase;
}

.libros-publico-card h3 {
    margin: 0;
    font-size: clamp(1.3rem, 2.5vw, 1.7rem);
    line-height: 1.2;
}

.libros-publico-card p {
    flex: 1 1 auto;
    margin: 12px 0 22px;
    color: var(--texto);
    line-height: 1.65;
    opacity: .8;
}

.libros-publico-boton {
    min-height: 46px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 11px 16px;
    border: 1px solid var(--principal);
    border-radius: 999px;
    color: var(--texto-sobre-principal, #fff);
    background: var(--principal);
    font-weight: 800;
    text-align: center;
    text-decoration: none;
    transition: transform .18s ease, background-color .18s ease;
}

.libros-publico-boton:hover {
    transform: translateY(-1px);
    background: var(--principal-oscuro);
}

.libros-publico-nota {
    margin: 30px 0 0;
    color: var(--texto);
    font-size: .92rem;
    line-height: 1.6;
    opacity: .72;
}

@media (max-width: 760px) {
    .libros-publico-grid {
        grid-template-columns: 1fr;
    }
}

@media (prefers-reduced-motion: reduce) {
    .libros-publico-boton {
        transition: none;
    }
}