body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
}

/* Banner principal */
.banner {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
}

.banner-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(60%);
}

.banner-text {
    position: absolute;
    top: 20%;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    text-align: center;
    width: 90%;
    max-width: 800px;
}

.banner-text h1 {
    font-size: 4em;
    font-weight: bold;
    text-shadow: 2px 2px 5px rgba(0,0,0,0.7);
    margin-bottom: 20px;
}

.banner-text p {
    font-size: 1.5em;
    margin-bottom: 30px;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.7);
}

.banner-text .btn {
    font-size: 1.2em;
    padding: 12px 30px;
    text-transform: uppercase;
    transition: all 0.3s ease;
}

.banner-text .btn:hover {
    transform: scale(1.05);
    box-shadow: 0 0 15px rgba(255,255,255,0.3);
}

/* Cards */
.card {
    transition: transform 0.3s ease;
    height: 100%;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.card-img-top {
    height: 200px;
    object-fit: cover;
}

/* Scroll Top */
.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 999;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 22px;
    font-weight: bold;
    background-color: #007bff;
    border: none;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

/* WhatsApp */
.whatsapp-float {
    position: fixed;
    bottom: 90px;
    right: 30px;
    z-index: 998;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: transform 0.3s ease;
}

.whatsapp-float:hover {
    transform: scale(1.1);
}

/* Secciones */
.audio-section, .subscription-form {
    background: #f8f9fa;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 0 15px rgba(0,0,0,0.1);
}

/* Media queries */
@media (max-width: 768px) {
    .banner-text h1 {
        font-size: 2.5em;
    }

    .banner-text p {
        font-size: 1.2em;
    }

    .banner-text .btn {
        font-size: 1em;
        padding: 10px 20px;
    }
}

@media (max-width: 576px) {
    .banner-text {
        top: 15%;
    }

    .banner-text h1 {
        font-size: 2em;
    }

    .banner-text p {
        font-size: 1em;
    }
}