#englBT {
    padding: 5.5% 0rem 0 0rem;
}

#englConBT {
    padding: 2rem 0;
    background-image: url("/build/img/fondos/fondoAzul.webp");
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
    margin-top: -3px;
}

#heroBT {
    position: relative;
    background-image: url("/build/img/estadias/estadiasVisitasAcademicas.jpg");
    background-repeat: no-repeat;
    /*background-position: center;*/
    background-size: cover;
    min-height: 500px;
    overflow: hidden;
}

#heroBT::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at left, rgba(0, 40, 85, 0.4) 0%, transparent 40%),
        linear-gradient(90deg, var(--azulFuerte) 0%, rgba(0, 40, 85, 0.88) 35%, rgba(0, 40, 85, 0.35) 80%, rgba(0, 40, 85, 0) 95%);
    z-index: 1;
}

#heroBT::after {
    content: "";
    position: absolute;
    inset: auto 0 0 0;
    height: 120px;
    background: linear-gradient(180deg, transparent, var(--azulFuerte));
    z-index: 1;
    pointer-events: none;
}

#heroBT>* {
    position: relative;
    z-index: 2;
}

.heroBT-content {
    max-width: 65rem;
    padding: 16rem 8rem 11rem 8rem;
    color: white;
}

.heroBT-kicker {
    display: inline-block;
    font-size: 1.6rem;
    font-weight: 600;
    letter-spacing: 0.1rem;
    text-transform: uppercase;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.25);
    padding: 0.6rem 1.6rem;
    border-radius: 50rem;
    margin-bottom: 2rem;
    backdrop-filter: blur(4px);
}

.heroBT-content h1 {
    font-size: 4.4rem;
    line-height: 1.15;
    font-weight: 700;
    margin-bottom: 1.6rem;
}

.heroBT-content p {
    font-size: 1.8rem;
    opacity: 0.85;
    margin-bottom: 3rem;
    max-width: 45rem;
}

#contBT {
    border-radius: 25px;
    margin: 0 8rem;
    padding: 5rem;
    background-color: var(--bg-white);
}

.contact {
    text-align: center;
    font-size: 1.4rem;
    color: var(--muted);
    margin-top: 2.5rem;
    padding-top: 2rem;
    border-top: 1px solid var(--borde);
}

.contact strong {
    color: var(--azulFuerte);
}

.contact a {
    color: var(--azul);
    text-decoration: none;
}

.contact a:hover {
    text-decoration: underline;
}

.textBT p {
    font-size: 1.6rem;
    color: var(--muted);
    text-align: center;
    max-width: 900px;
    margin: auto;
    margin-bottom: 35px;
}

.franjas {
    display: flex;
    gap: 24px;
    margin: 3rem 0;
}

.franja {
    flex: 1;
    display: flex;
    align-items: stretch;
    border-radius: 16px;
    overflow: hidden;
}

.franja-body {
    flex: 1;
    padding: 2.5rem 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.franja-img {
    width: 40%;
    object-fit: cover;
}

.franja h3 {
    font-size: 1.8rem;
    font-weight: 700;
    text-transform: uppercase;
    margin: 0 0 0.8rem;
}

.franja p {
    font-size: 1.4rem;
    line-height: 1.6;
    margin: 0;
}

.franja--estadia {
    background: color-mix(in srgb, var(--primario) 8%, white);
}

.franja--estadia h3 {
    color: var(--primario) !important;
}

.franja--estadia p {
    color: color-mix(in srgb, var(--primario) 25%, var(--texto)) !important;
}

.franja--visita {
    background: color-mix(in srgb, var(--azul) 8%, white);
}

.franja--visita h3 {
    color: var(--azul) !important;
}

.franja--visita p {
    color: color-mix(in srgb, var(--azul) 25%, var(--texto)) !important;
}

.detalleEstadia {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 40px;
    padding: 5rem;
}

.izqDet,
.derDet {
    width: 50%;
}


.izqDet h3 {
    text-transform: uppercase;
    color: var(--azulFuerte) !important;
    font-size: 1.7rem;
    margin: 0 0 1.8rem;
}

.izqDet ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.izqDet li {
    display: flex;
    align-items: flex-start;
    gap: 0.8rem;
    font-size: 1.4rem;
    color: var(--texto) !important;
    line-height: 1.5;
}

.izqDet li::before {
    content: "";
    flex-shrink: 0;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--primario) !important;
    margin-top: 0.6rem;
}

.derDet {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.cardEstadia {
    width: 70%;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 12px 28px rgba(0, 40, 85, 0.12);
}

.contDer {
    background-color: var(--bg-white) !important;
    width: 70%;
    padding: 1.8rem 3rem;
    border: 1px solid var(--borde);
    border-bottom: none;
}

.estadiaDetalle-fecha {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.estadiaDetalle-fecha:last-of-type {
    border-bottom: none;
}

.estadiaDetalle-fecha strong {
    font-size: 1.4rem;
    color: var(--azulFuerte) !important;
    text-transform: uppercase;
}

.estadiaDetalle-fecha span {
    font-size: 1.4rem;
    color: var(--primario) !important;
    font-weight: 600;
}

.estadiaDetalle-btn {
    width: 70%;
    box-sizing: border-box;
    margin: 0;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    background: var(--azulFuerte) !important;
    color: var(--primario) !important;
    text-decoration: none;
    font-size: 1.4rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04rem;
    padding: 1.2rem 2rem;
    border-radius: 0 0 12px 12px;
    transition: background 0.2s ease;
}

.estadiaDetalle-btn:hover {
    background: var(--primario) !important;
    color: var(--azulFuerte) !important;
}

@media (max-width: 768px) {
    .detalleEstadia {
        flex-direction: column;
        padding: 3rem 2rem;
        gap: 2.5rem;
    }

    .izqDet,
    .derDet {
        width: 100%;
    }

    .izqDet {
        padding-right: 0;
        border-right: none;
        border-bottom: 1px solid var(--borde);
        padding-bottom: 2rem;
    }

    .contDer,
    .estadiaDetalle-btn {
        width: 100%;
    }

    .franjas {
        flex-direction: column;
    }

    .franja {
        flex-direction: column;
    }

    .franja-img {
        width: 100%;
        height: 160px;
    }
}

@media (max-width: 500px) {
    #contBT {
        margin: 0 1rem;
    }

    .boxRegister {
        width: 100%;
    }

    .registers {
        flex-direction: column;
    }

    .heroBT-content {
        padding: 20rem 4rem 10rem 4rem;
    }

    #heroBT {
        background-position: right;
    }
}