/* =========================================
   1. FUENTES Y BASES
   ========================================= */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700&display=swap');

body {
    font-family: 'Inter', sans-serif;
    background-color: #f3f4f6;
    overflow-x: hidden;
}

/* =========================================
   2. ESTRUCTURA PRINCIPAL (LAYOUT)
   ========================================= */
#wrapper {
    overflow-x: hidden;
    display: flex;
    width: 100%;
}

#sidebar-wrapper {
    min-height: 100vh;
    margin-left: -17rem;
    width: 17rem;
    transition: margin 0.3s ease-out;
    background: linear-gradient(180deg, #1e293b 0%, #0f172a 100%);
    box-shadow: 4px 0 10px rgba(0,0,0,0.1);
    z-index: 1000;
}

#page-content-wrapper {
    min-width: 100vw;
    width: 100%;
    transition: all 0.3s ease-out;
}

#wrapper.toggled #sidebar-wrapper {
    margin-left: 0;
}

@media (min-width: 768px) {
    #sidebar-wrapper { margin-left: 0; }
    #page-content-wrapper { min-width: 0; width: 100%; }
    #wrapper.toggled #sidebar-wrapper { margin-left: -17rem; }
}

/* =========================================
   3. SIDEBAR (V2.0 ESTILO ENTERPRISE)
   ========================================= */
.sidebar-brand {
    padding: 1.5rem 1.5rem 1.5rem;
    background: rgba(0,0,0,0.1);
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.brand-title {
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: -0.5px;
    color: #fff;
    display: block;
}

.brand-version {
    font-size: 0.75rem;
    color: #60a5fa;
    font-weight: 500;
    background: rgba(96, 165, 250, 0.1);
    padding: 2px 8px;
    border-radius: 4px;
    display: inline-block;
    margin-top: 4px;
}

.sidebar-header {
    padding: 1.5rem 1.5rem 0.5rem;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #64748b;
}

#sidebar-wrapper .list-group {
    width: 17rem;
    overflow-x: hidden;
    overflow-y: auto;
}

.list-group-item-dark {
    background-color: transparent;
    color: #cbd5e1;
    border: none;
    padding: 10px 15px;
    font-size: 0.95rem;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    border-left: 3px solid transparent;
    margin: 2px 10px;
    border-radius: 6px;
    white-space: nowrap;
}

.list-group-item-dark:hover, .list-group-item-dark.active {
    background-color: rgba(255,255,255,0.08);
    color: #fff;
    border-left-color: #60a5fa;
}

.list-group-item i {
    width: 25px;
    text-align: center;
    margin-right: 10px;
    opacity: 0.8;
}

/* =========================================
   4. COMPONENTES VISUALES (CARDS)
   ========================================= */
.card {
    border: none;
    border-radius: 12px;
    transition: transform 0.2s, box-shadow 0.2s;
}
.hover-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.08) !important;
}

/* =========================================
   5. LÓGICA DE TEST (CORRECCIÓN VISUAL)
   ========================================= */
.opcion-test {
    cursor: pointer;
    transition: all 0.2s;
    white-space: normal !important; /* PERMITE SALTO DE LÍNEA */
    text-align: left;
    height: auto;
    display: block;
}

/* Alineación para que el círculo no se mueva en textos largos */
.opcion-test .d-flex {
    align-items: flex-start !important;
}

.correct-answer {
    background-color: #d1e7dd !important;
    border-color: #badbcc !important;
    color: #0f5132;
}
.wrong-answer {
    background-color: #f8d7da !important;
    border-color: #f5c6cb !important;
    color: #842029;
}