/* ============================================================
   ROVNAD — BANNER DE SUGERENCIA DE IDIOMA
   ============================================================
   Banner flotante, no intrusivo y descartable, inyectado por
   js/lang-suggest.js cuando el idioma del navegador no coincide
   con el idioma fijo de la landing page actual.
   Paleta alineada con base.css (--bg-body, --accent, --border-main).
   ============================================================ */

.rv-lang-banner {
    position: fixed;
    left: 50%;
    bottom: 18px;
    z-index: 9999;
    width: min(92vw, 460px);
    transform: translate(-50%, 24px);
    opacity: 0;
    transition: transform 0.35s ease, opacity 0.35s ease;
    pointer-events: none;
}

.rv-lang-banner--visible {
    transform: translate(-50%, 0);
    opacity: 1;
    pointer-events: auto;
}

.rv-lang-banner-inner {
    position: relative;
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 10px 12px;
    padding: 16px 40px 16px 16px;
    border-radius: 14px;
    background: rgba(10, 15, 30, 0.92);
    border: 1px solid rgba(94, 129, 172, 0.35);
    box-shadow: 0 10px 32px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(255, 255, 255, 0.03) inset;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.rv-lang-banner-icon {
    font-size: 20px;
    line-height: 1.4;
    flex-shrink: 0;
}

.rv-lang-banner-msg {
    flex: 1 1 200px;
    margin: 0;
    color: #e0e0e0;
    font-size: 13.5px;
    line-height: 1.5;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.rv-lang-banner-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    width: 100%;
    margin-left: 30px;
}

.rv-lang-banner-btn {
    appearance: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    font-size: 12.5px;
    font-weight: 600;
    letter-spacing: 0.2px;
    padding: 8px 14px;
    border-radius: 8px;
    text-decoration: none;
    white-space: nowrap;
    transition: transform 0.15s ease, filter 0.15s ease, background 0.15s ease;
}

.rv-lang-banner-btn:active {
    transform: scale(0.97);
}

.rv-lang-banner-btn--accept {
    background: linear-gradient(135deg, #5e81ac, #7aa3d4);
    color: #ffffff;
    box-shadow: 0 2px 10px rgba(94, 129, 172, 0.4);
}

.rv-lang-banner-btn--accept:hover {
    filter: brightness(1.1);
}

.rv-lang-banner-btn--dismiss {
    background: rgba(255, 255, 255, 0.06);
    color: #b8c2d8;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.rv-lang-banner-btn--dismiss:hover {
    background: rgba(255, 255, 255, 0.1);
}

.rv-lang-banner-close {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 26px;
    height: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    appearance: none;
    border: none;
    border-radius: 50%;
    background: transparent;
    color: #8a93a8;
    font-size: 13px;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
}

.rv-lang-banner-close:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #e0e0e0;
}

/* ── Responsive: móviles pequeños ── */
@media (max-width: 480px) {
    .rv-lang-banner {
        bottom: 12px;
        width: 94vw;
    }
    .rv-lang-banner-inner {
        padding: 14px 36px 14px 14px;
    }
    .rv-lang-banner-actions {
        margin-left: 0;
    }
}

/* ── Preferencia de movimiento reducido ── */
@media (prefers-reduced-motion: reduce) {
    .rv-lang-banner {
        transition: opacity 0.2s ease;
        transform: translate(-50%, 0);
    }
}