body {
    margin: 0;
    padding: 0;
    background-image: url("../Img/patron.jpg");
    background-repeat: repeat;
    background-size: 350px;
    font-family: Arial, Helvetica, sans-serif;
}

.navbar {
    box-shadow: none !important;
    -webkit-box-shadow: none !important;
    -moz-box-shadow: none !important;
    opacity: 1;
}

.titulo-opiniones {
    text-align: center;
    font-size: 45px;
    font-weight: bold;
    color: #0B2447;
    margin-top: 40px;
    margin-bottom: 30px;
}

#acordeonOpiniones {
    width: 80%;
    margin: auto;
    margin-bottom: 50px;
}

.card {
    border: none;
    background: transparent;
}

.card-header {
    border: none;
    background: transparent;
}

.boton-opinion {
    width: 100%;
    background-color: #08264A;
    color: white !important;
    font-size: 22px;
    font-weight: bold;
    padding: 15px 25px;
    border: none;
    border-radius: 10px;
    text-align: left;
    transition: 0.3s;
}

.boton-opinion:hover {
    background-color: #103867;
}

.boton-opinion:focus {
    box-shadow: none;
}

.card-body {
    background: white;
    border-radius: 0 0 10px 10px;
    padding: 25px;
    box-shadow: 0px 3px 10px rgba(0,0,0,0.15);
    color: #333;
    line-height: 1.8;
}

/* --- ESTILOS PARA LOS VIDEOS --- */
.videos-musicales {
    width: 80%;
    margin: auto;
    margin-bottom: 50px;
}

.videos-musicales h2 {
    text-align: center;
    font-size: 35px;
    font-weight: bold;
    color: #0B2447;
    margin-bottom: 30px;
}

.video-card {
    background: #ffffff;
    border: none;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0px 3px 10px rgba(0,0,0,0.15);
}

.video-card .card-body {
    text-align: center;
    padding: 20px;
    border-radius: 0;
    box-shadow: none;
}

.video-card .card-title {
    color: #0B2447;
    font-weight: bold;
}

.video-card .card-text {
    color: #555;
}

/* --- ESTILOS PARA EL FORMULARIO --- */
.caja-opinion {
    width: 80%;
    max-width: 950px;
    margin: auto;
    background-color: #3E8AD8;
    border-radius: 25px;
    padding: 50px;
    color: white;
    box-shadow: 0px 5px 20px rgba(0,0,0,0.25);
}

.caja-opinion h2 {
    text-align: center;
    margin-bottom: 40px;
    font-weight: bold;
    font-size: 35px;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    font-size: 18px;
    font-weight: bold;
}

.form-control {
    border-radius: 10px;
    border: none;
    height: 45px;
}

.form-control:focus {
    box-shadow: 0px 0px 10px rgba(255,255,255,0.4);
}

textarea.form-control {
    height: 140px;
    resize: none;
}

.btn-enviar {
    background-color: white;
    color: #0B2447;
    font-weight: bold;
    min-width: 170px;
    border-radius: 25px;
    border: none;
    padding: 12px 25px;
    transition: 0.3s;
}

.btn-enviar:hover {
    background-color: #d9d9d9;
    transform: scale(1.05);
}

footer {
    margin-top: 50px;
    background-color: #6BC6F5;
    padding: 20px;
    text-align: center;
    font-weight: bold;
    color: #0B2447;
    margin-left: -942px;
}

/* --- MEDIA QUERIES --- */
@media (max-width: 992px) {
    #acordeonOpiniones { width: 90%; }
    .caja-opinion { width: 90%; padding: 35px; }
    .titulo-opiniones { font-size: 38px; }
}

@media (max-width: 768px) {
    .titulo-opiniones { font-size: 32px; }
    #acordeonOpiniones { width: 95%; }
    .boton-opinion { font-size: 18px; padding: 12px 18px; }
    .caja-opinion { width: 95%; padding: 25px; }
    .caja-opinion h2 { font-size: 28px; }
    
    .videos-musicales { width: 95%; }
    .videos-musicales h2 { font-size: 28px; }
}

@media (max-width: 576px) {
    .titulo-opiniones { font-size: 28px; margin-top: 25px; margin-bottom: 20px; }
    .boton-opinion { font-size: 16px; padding: 10px 15px; }
    .card-body { padding: 18px; font-size: 15px; }
    .caja-opinion { width: 98%; padding: 20px; border-radius: 15px; }
    .caja-opinion h2 { font-size: 24px;