.ad-libro-section {
    position: relative;
    overflow: hidden;
    isolation: isolate;
    padding: 36px 0 96px;
    background:
        radial-gradient(ellipse 55% 45% at 95% -22%, rgba(55,10,130,.25) 0%, transparent 55%),
        linear-gradient(rgba(14,3,33,.80), rgba(14,3,33,.80)),
        url('../images/fondovideo.png') center/cover fixed;
}

.ad-libro-panel {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 48px;
    padding: 44px 48px;
    border-radius: 20px;
    border: 1px solid rgba(255,255,255,.82);
    background: #ffffff;
}

/* ── Copy ── */
.ad-libro-copy {
    flex: 1;
    min-width: 0;
}

.ad-libro-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
    color: #f75a2a;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: .18em;
    text-transform: uppercase;
}

.ad-libro-title {
    margin: 0 0 16px;
    color: #17110c;
    font-size: clamp(26px, 2.6vw, 40px);
    font-weight: 800;
    line-height: 1.1;
}

.ad-libro-title span {
    background: linear-gradient(160deg, #f75a2a 0%, #d86414 70%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.ad-libro-desc {
    margin: 0 0 24px;
    color: #5f6470;
    font-size: 16px;
    line-height: 1.75;
}

.ad-libro-bullets {
    list-style: none;
    margin: 0 0 32px;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.ad-libro-bullets li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #242936;
    font-size: 15px;
    font-weight: 500;
}

.ad-libro-bullets li i {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: rgba(247,90,42,.11);
    color: #f75a2a;
    font-size: 10px;
}

.ad-libro-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-height: 54px;
    padding: 0 32px;
    border-radius: 999px;
    border: 1px solid #ff6b2c;
    background: #ff6b2c;
    color: #ffffff;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: .08em;
    text-transform: uppercase;
    transition: background .18s ease, transform .18s ease;
}

.ad-libro-btn:hover {
    background: #e85a1f;
    transform: translateY(-2px);
}

.ad-libro-note {
    align-items: flex-start;
    display: flex;
    gap: 7px;
    margin: 12px 0 0;
    max-width: 320px;
    color: #8a909c;
    font-size: 12px;
    font-weight: 600;
    line-height: 1.45;
    width: 100%;
}

.ad-libro-note i {
    color: #8a909c;
    flex: 0 0 auto;
    font-size: 11px;
    margin-top: 2px;
}

/* ── Visual ── */
.ad-libro-visual {
    flex-shrink: 0;
    width: 420px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ad-libro-img {
    width: 100%;
    filter: drop-shadow(0 14px 22px rgba(17,17,17,.18));
    transition: transform .4s ease, filter .4s ease;
}

.ad-libro-img:hover {
    transform: translateY(-6px);
    filter: drop-shadow(0 18px 28px rgba(17,17,17,.22));
}

/* ── Responsive ── */
@media (max-width: 1100px) {
    .ad-libro-panel {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
        padding: 40px 30px;
    }

    .ad-libro-visual {
        order: -1;
        width: 100%;
    }

    .ad-libro-img { max-width: 380px; margin: 0 auto; }

    .ad-libro-bullets { align-items: center; }
}

@media (max-width: 720px) {
    .ad-libro-section { padding: 28px 0 74px; background-attachment: scroll; }
    .ad-libro-panel { padding: 34px 22px; border-radius: 18px; }
    .ad-libro-img { max-width: 280px; }
}