.btn-back {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 1.05rem;
    font-weight: 600;
    color: #1a1f36;
    text-decoration: none !important;
    background: #ffffff;
    padding: 10px 18px;
    border-radius: 10px;
    border: 1px solid rgba(0, 0, 0, 0.09);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.06);
    transition: all .25s ease;
}

.btn-back i {
    font-size: 1.2rem;
    transition: transform .25s ease;
}

.btn-back:hover {
    background: #f5f7ff;
    transform: translateX(-2px);
    box-shadow: 0 6px 14px rgba(0, 0, 0, 0.1);
}

.btn-back:hover i {
    transform: translateX(-4px);
}

.p-titulo {
    font-size: 1.5rem;
    font-weight: 600;
    line-height: 1.4;
    margin: 15px 0;
    color: #1a1f36;
    letter-spacing: 0.5px;

    padding: 18px 22px;
    border-left: 4px solid #ff0000;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);

    backdrop-filter: blur(3px);
    transition: all .25s ease;
}

/* Título del evento: elegante, sobrio y moderno */
.evento-title {
    font-size: 2.2rem;
    font-weight: 800;
    letter-spacing: 0.5px;
    margin-bottom: 0px;
    color: #101626;
    position: relative;
    display: inline-block;
    padding-bottom: 10px;
}

/* Línea elegante debajo del título */
.evento-title::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 4px;
    border-radius: 4px;
    background: linear-gradient(90deg, #0F3FD3, #89A7FF);
}


/* CONTENEDOR DE INFORMACIÓN (preface) */
.preface {
    margin-top: 5px;
    padding: 2px 4px;
    background: #ffffff;
    border-radius: 18px;
    box-shadow: 0 6px 26px rgba(0, 0, 0, 0.06);
    border: 1px solid rgba(0, 0, 0, 0.05);
}


/* Texto de información del evento */
.title-info {
    font-size: .9rem;
    font-weight: 500;
    margin: 12px 0;
    color: #2b344b;
    letter-spacing: 0px;

    padding: 8px 10px;
    background: #f9faff;
    border-radius: 12px;

    border-left: 3px solid #0F3FD3;
    transition: all .25s ease;
}

/* Efecto hover suave premium */
.title-info:hover {
    background: #ffffff;
    transform: translateX(4px);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
}