/**
 * Estilos para acordeones Bootstrap
 * Replicados del sitio original madmusic.iccmu.es
 */

/* === ESTILOS GENERALES DE ACORDEONES === */

.accordion-group-wrapper {
    margin: 30px 0;
}

.accordion-group-heading {
    margin-bottom: 20px;
    color: #333;
    font-weight: 700;
    font-size: 24px;
}

/* Panel Group */
.panel-group {
    margin-bottom: 20px;
}

.panel-group .panel {
    margin-bottom: 0;
    border-radius: 0;
    box-shadow: none;
}

.panel-group .panel + .panel {
    margin-top: 5px;
}

/* === PANEL BÁSICO === */

.panel {
    margin-bottom: 20px;
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-shadow: 0 1px 1px rgba(0,0,0,.05);
}

.panel-default {
    border-color: #ddd;
}

/* === PANEL HEADING === */

.panel-heading {
    padding: 0;
    border-bottom: 1px solid transparent;
    border-top-left-radius: 3px;
    border-top-right-radius: 3px;
    background-color: #f5f5f5;
    border-color: #ddd;
}

.panel-default > .panel-heading {
    color: #333;
    background-color: #f5f5f5;
    border-color: #ddd;
}

/* === PANEL TITLE === */

.panel-title {
    margin-top: 0;
    margin-bottom: 0;
    font-size: 16px;
    color: inherit;
}

.panel-title > a,
.panel-title > a:hover,
.panel-title > a:focus {
    color: inherit;
    text-decoration: none;
    display: block;
    padding: 15px 20px;
    position: relative;
    transition: all 0.3s ease;
}

.panel-title > a:hover {
    background-color: #e8e8e8;
}

/* Icono de flecha para indicar estado colapsado/expandido */
.panel-title > a:after {
    content: '\f078'; /* FontAwesome chevron-down */
    font-family: 'FontAwesome';
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    transition: transform 0.3s ease;
}

.panel-title > a.collapsed:after {
    transform: translateY(-50%) rotate(-90deg);
}

.panel-title > a:not(.collapsed):after {
    transform: translateY(-50%) rotate(0deg);
}

/* === PANEL COLLAPSE === */

.panel-collapse {
    overflow: hidden;
    transition: height 0.35s ease;
}

.panel-collapse.in {
    height: auto;
}

.collapse {
    display: none;
}

.collapse.in {
    display: block;
}

/* === PANEL BODY === */

.panel-body {
    padding: 20px;
    background-color: #fff;
}

.panel-body p {
    margin-bottom: 15px;
    line-height: 1.6;
}

.panel-body p:last-child {
    margin-bottom: 0;
}

.panel-body ul,
.panel-body ol {
    margin-bottom: 15px;
    padding-left: 25px;
}

.panel-body li {
    margin-bottom: 8px;
    line-height: 1.6;
}

.panel-body img {
    max-width: 100%;
    height: auto;
    margin: 15px 0;
}

.panel-body a {
    color: #d11922;
    text-decoration: none;
}

.panel-body a:hover {
    text-decoration: underline;
}

.panel-body blockquote {
    border-left: 4px solid #d11922;
    padding-left: 20px;
    margin: 25px 0;
    font-style: italic;
    color: #555;
}

.panel-body hr {
    margin: 25px 0;
    border: 0;
    border-top: 1px solid #ddd;
}

.panel-body strong,
.panel-body b {
    font-weight: 700;
}

.panel-body em,
.panel-body i {
    font-style: italic;
}

/* === ESTILOS ESPECÍFICOS PARA TÍTULOS DENTRO DEL BODY === */

.panel-body h2,
.panel-body h3,
.panel-body h4,
.panel-body h5,
.panel-body h6 {
    margin-top: 20px;
    margin-bottom: 15px;
    font-weight: 700;
    color: #333;
}

.panel-body h2 { font-size: 24px; }
.panel-body h3 { font-size: 20px; }
.panel-body h4 { font-size: 18px; }
.panel-body h5 { font-size: 16px; }
.panel-body h6 { font-size: 14px; }

/* === RESPONSIVE === */

@media (max-width: 768px) {
    .panel-title > a {
        padding: 12px 15px;
        font-size: 14px;
    }
    
    .panel-body {
        padding: 15px;
    }
    
    .panel-title > a:after {
        right: 15px;
    }
}

/* === ANIMACIONES === */

.panel-collapse {
    -webkit-transition: height 0.35s ease;
    -moz-transition: height 0.35s ease;
    -ms-transition: height 0.35s ease;
    -o-transition: height 0.35s ease;
    transition: height 0.35s ease;
}

/* === ACCESIBILIDAD === */

.panel-title > a:focus {
    outline: 2px solid #d11922;
    outline-offset: 2px;
}

/* === VARIANTES DE COLOR === */

/* Panel destacado */
.panel-primary > .panel-heading {
    background-color: #d11922;
    border-color: #d11922;
    color: #fff;
}

.panel-primary > .panel-heading .panel-title > a {
    color: #fff;
}

.panel-primary > .panel-heading .panel-title > a:hover {
    background-color: #b01419;
}

/* === ESTILOS ADICIONALES PARA COMPATIBILIDAD === */

/* Asegurar que los acordeones funcionen con Bootstrap 3 */
.collapsing {
    position: relative;
    height: 0;
    overflow: hidden;
    -webkit-transition-property: height, visibility;
    transition-property: height, visibility;
    -webkit-transition-duration: 0.35s;
    transition-duration: 0.35s;
    -webkit-transition-timing-function: ease;
    transition-timing-function: ease;
}