/* ════════════════════════════════════════════════════════════════════════
   LIBROS CREANDO PATRIA — cabecera.css
   Estilos del header (cabecera fija) y del footer.
   ════════════════════════════════════════════════════════════════════════ */

/* ══ HEADER PRINCIPAL ══════════════════════════════════════════════════ */
.cabecera {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--negro-line);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
}

.cabecera-fila {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.9rem 1.5rem;
    max-width: var(--max-ancho);
    margin: 0 auto;
    gap: 1.5rem;
    flex-wrap: wrap;
}

/* ── Logo + nombre ───────────────────────────────────────────────────── */
.cabecera-marca {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    text-decoration: none;
    flex-shrink: 0;
}

.cabecera-logo {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    border: 1.5px solid var(--oro-tenue);
    box-shadow: var(--sombra-dorada);
    transition: transform var(--transicion-rapida);
}

.cabecera-marca:hover .cabecera-logo {
    transform: scale(1.05);
    border-color: var(--oro);
}

.cabecera-titulo {
    font-family: var(--font-titular);
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 0.18em;
    color: var(--crema);
    text-transform: uppercase;
    line-height: 1;
}

.cabecera-subtitulo {
    display: block;
    font-family: var(--font-meta);
    font-size: 0.65rem;
    letter-spacing: 0.32em;
    color: var(--oro);
    margin-top: 4px;
}

/* ── Navegación principal ───────────────────────────────────────────── */
.cabecera-nav {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    flex-wrap: wrap;
}

.cabecera-link {
    font-family: var(--font-meta);
    font-size: 0.78rem;
    letter-spacing: 0.18em;
    color: var(--crema-tenue);
    text-transform: uppercase;
    padding: 0.55rem 1rem;
    border-radius: var(--r-sm);
    transition: all var(--transicion-rapida);
}

.cabecera-link:hover,
.cabecera-link.activo {
    color: var(--oro);
    background: var(--oro-tenue);
}

/* ── Enlaces externos (otras plataformas) ───────────────────────────── */
.cabecera-externos {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    flex-wrap: wrap;
}

.ext-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 0.9rem;
    font-family: var(--font-meta);
    font-size: 0.72rem;
    letter-spacing: 0.16em;
    color: var(--verde-cp);
    text-transform: uppercase;
    text-decoration: none;
    border: 1px solid rgba(57, 255, 20, 0.25);
    border-radius: var(--r-pill);
    background: rgba(57, 255, 20, 0.04);
    transition: all var(--transicion-rapida);
    white-space: nowrap;
}

.ext-link:hover {
    background: rgba(57, 255, 20, 0.12);
    border-color: var(--verde-cp);
    color: var(--verde-cp);
    transform: translateY(-1px);
}

.ext-icon {
    font-size: 0.95rem;
    line-height: 1;
}

/* ══ HERO (cabecera de la home) ══════════════════════════════════════ */
.hero {
    text-align: center;
    padding: 5rem 1.5rem 4rem;
    border-bottom: 1px solid var(--negro-line);
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 60% 50% at 50% 100%, rgba(201,169,97,0.08), transparent 70%);
    pointer-events: none;
}

.hero-marca {
    font-family: var(--font-meta);
    font-size: 0.9rem;
    letter-spacing: 0.4em;
    color: var(--oro);
    margin-bottom: 1.5rem;
    text-transform: uppercase;
}

.hero h1 {
    font-family: var(--font-titular);
    font-size: clamp(2.4rem, 6vw, 4.4rem);
    font-weight: 700;
    color: var(--crema);
    margin-bottom: 1rem;
    text-shadow: 0 4px 24px rgba(201, 169, 97, 0.15);
}

.hero-lema {
    font-family: var(--font-display);
    font-style: italic;
    font-size: clamp(1rem, 2vw, 1.3rem);
    color: var(--crema-tenue);
    max-width: 640px;
    margin: 0 auto;
}

/* ══ FOOTER ══════════════════════════════════════════════════════════ */
.pie {
    margin-top: 6rem;
    padding: 4rem 1.5rem 2rem;
    background: var(--negro-suave);
    border-top: 1px solid var(--negro-line);
    position: relative;
}

.pie::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--oro), transparent);
}

.pie-grid {
    max-width: var(--max-ancho);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2.5rem;
    margin-bottom: 3rem;
}

.pie-bloque h4 {
    font-family: var(--font-titular);
    font-size: 0.9rem;
    color: var(--oro);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 1rem;
    padding-bottom: 0.6rem;
    border-bottom: 1px solid var(--negro-line);
}

.pie-bloque ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.pie-bloque li {
    margin-bottom: 0.6rem;
}

.pie-bloque a {
    color: var(--crema-tenue);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color var(--transicion-rapida);
}

.pie-bloque a:hover {
    color: var(--oro);
}

.pie-marca-bloque {
    grid-column: 1 / -1;
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--negro-line);
}

.pie-marca-bloque img {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    margin: 0 auto 1rem;
    border: 1px solid var(--oro-tenue);
}

.pie-marca-bloque p {
    color: var(--crema-mute);
    font-size: 0.9rem;
}

.pie-creditos {
    text-align: center;
    color: var(--gris-mute);
    font-size: 0.82rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--negro-line);
    max-width: var(--max-ancho);
    margin: 0 auto;
}

.pie-creditos a {
    color: var(--gris-ceniza);
    margin: 0 0.6rem;
}

.pie-creditos a:hover {
    color: var(--oro);
}

/* ══ RESPONSIVE: HEADER MÓVIL ════════════════════════════════════════ */
@media (max-width: 980px) {
    .cabecera-fila {
        flex-direction: column;
        align-items: center;
        gap: 0.8rem;
        padding: 0.9rem 1rem;
    }
    .cabecera-nav,
    .cabecera-externos {
        justify-content: center;
    }
    .cabecera-titulo { font-size: 0.95rem; }
    .cabecera-subtitulo { font-size: 0.6rem; }
}

@media (max-width: 600px) {
    .cabecera-link {
        font-size: 0.7rem;
        padding: 0.4rem 0.7rem;
    }
    .ext-link {
        font-size: 0.65rem;
        padding: 0.4rem 0.7rem;
    }
    .hero { padding: 3rem 1rem 2.5rem; }
}