body {
}
.biblio-hero {
    background: linear-gradient(135deg, #003366 0%, #004080 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
}

    .biblio-hero h1 {
        font-family: 'Montserrat', 'Roboto Condensed', sans-serif;
        font-weight: 900;
        font-size: 3rem;
        margin-bottom: 1rem;
    }

    .biblio-hero p {
        font-size: 1.2rem;
        opacity: 0.9;
        max-width: 700px;
        margin: 0 auto;
    }
.floating-btn-container {
    position: fixed;
    top: 60px;
    right: 20px;
    z-index: 9999;
    cursor: grab;
    user-select: none;
}

    .floating-btn-container.dragging {
        cursor: grabbing;
    }

.floating-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px 10px 12px;
    background-color: #ffc107;
    border-radius: 999px 999px 999px 4px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
    font-size: 24px;
    font-weight: 600;
    color: #212529;
    text-decoration: none;
    white-space: nowrap;
    transition: box-shadow 0.2s ease;
    pointer-events: none; /* evita que el <a> interfiera con el drag */
}

.floating-btn-container.dragging .floating-btn {
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.35);
}

.floating-btn span{
    color:white;
    font-size:16px;
}

@media (max-width: 850px){

    .floating-btn span {
        color: white;
        font-size: 12px;
    }
    .floating-btn {
        font-size:18px;
    }

}