/*  nuevos cambios    */
 :root {
            --primary-color: #3498db;
            /* --secondary-color: #2c3e50; */
            --secondary-color: #170158;
            --accent-color: #e74c3c;
            --light-color: #ecf0f1;
            --dark-color: #2c3e50;
        }
        
        body {
            font-family: 'Poppins', sans-serif;
            color: #140356;
            background-color: #f8f9fa;
        }
        
        .navbar {
            background-color: var(--secondary-color);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            padding: 15px 0;
        }
        
        .navbar-brand {
            font-weight: 700;
            font-size: 1.5rem;
            color: white !important;
        }
        
        .nav-link {
            color: rgba(255, 255, 255, 0.85) !important;
            font-weight: 500;
            margin: 0 8px;
            transition: all 0.3s ease;
            position: relative;
        }
        
        .nav-link:hover, .nav-link.active {
            color: white !important;
        }
        
        .nav-link:hover::after, .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: var(--primary-color);
        }
        
        header {
            background: url('../img/banner-web2.jpg') repeat;
            background-size: cover;
            background-position: center;
           /* background: linear-gradient(135deg, var(--primary-color), var(--secondary-color)); */
            /* color: white; */
            padding: 80px 0 60px;
            margin-bottom: 30px;
            position: relative;
            overflow: hidden;
        }
        
        header::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            opacity: 0.05;
            pointer-events: none;
        }
        
        h1.display-4 {
            font-weight: 700;
            margin-bottom: 20px;
            text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.2);
        }
        
        .lead {
            font-weight: 300;
            font-size: 1.25rem;
        }
        
        .card {
            border: none;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease;
            height: 100%;
            position: relative;
            transform-style: preserve-3d;
            perspective: 1000px;
        }
        
        .interactive-card {
            cursor: pointer;
            height: 350px;
        }
        
        .card-front, .card-back {
            position: absolute;
            width: 100%;
            height: 100%;
            backface-visibility: hidden;
            transition: transform 0.6s;
            padding: 15px;
            display: flex;
            flex-direction: column;
        }
        
        .card-front {
            background: white;
            z-index: 2;
        }
        
        .card-back {
            background: white;
            transform: rotateY(180deg);
            z-index: 1;
            overflow-y: auto;
        }
        
        .interactive-card.flipped .card-front {
            transform: rotateY(180deg);
        }
        
        .interactive-card.flipped .card-back {
            transform: rotateY(0deg);
        }
        
        .card-img-top {
            height: 180px;
            object-fit: cover;
            border-radius: 8px 8px 0 0;
        }
        
        .card-body {
            padding: 20px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }
        
        .card-title {
            font-weight: 600;
            color: var(--secondary-color);
            margin-bottom: 10px;
        }
        
        .card-subtitle {
            font-weight: 400;
            font-size: 0.9rem;
        }
        
        .card-text {
            font-size: 0.95rem;
            margin-bottom: 15px;
            flex-grow: 1;
        }
        
        .btn-primary {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            font-weight: 500;
            padding: 8px 20px;
            border-radius: 50px;
            transition: all 0.3s ease;
        }
        
        .btn-primary:hover {
            background-color: #2980b9;
            border-color: #2980b9;
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        }
        
        .btn-outline-primary {
            color: var(--primary-color);
            border-color: var(--primary-color);
            font-weight: 500;
        }
        
        .btn-outline-primary:hover {
            background-color: var(--primary-color);
            color: white;
        }
        
        footer {
            background-color: var(--secondary-color);
            color: white;
            padding: 30px 0;
            margin-top: 50px;
        }
        
        footer a {
            color: var(--primary-color);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        
        footer a:hover {
            color: white;
            text-decoration: underline;
        }
        
        .search-container {
            max-width: 500px;
            margin: 0 auto 40px;
        }
        
        .search-input {
            border-radius: 50px;
            padding: 12px 20px;
            border: 1px solid #ddd;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
        }
        
        .search-btn {
            border-radius: 50px;
            padding: 12px 25px;
            margin-left: -50px;
            background-color: var(--primary-color);
            border-color: var(--primary-color);
        }
        
        .no-results {
            text-align: center;
            padding: 50px;
            display: none;
        }
        
        @media (max-width: 768px) {
            header {
                padding: 60px 0 40px;
            }
            
            h1.display-4 {
                font-size: 2.5rem;
            }
            
            .interactive-card {
                height: 300px;
            }
        }





/*      */
/* Estilos para las tarjetas interactivas */
.interactive-card {
    position: relative;
    width: 100%;
    height: 350px;
    perspective: 1000px;
    cursor: pointer;
    border: none;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    outline: none;
}

.interactive-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 20px rgba(0, 0, 0, 0.15);
}

.card-front, .card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    transition: transform 0.6s;
    border-radius: 10px;
    overflow: hidden;
}

.card-front {
    background-color: #fff;
    transform: rotateY(0deg);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.card-back {
    background-color: #ffffff;
    transform: rotateY(180deg);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.interactive-card.flipped .card-front {
    transform: rotateY(-180deg);
}

.interactive-card.flipped .card-back {
    transform: rotateY(0deg);
}

.card-img-top {
    height: 180px;
    object-fit: cover;
    transition: transform 0.3s;
}

.interactive-card:hover .card-img-top {
    transform: scale(1.03);
}

/* Estilos generales */
body {
        background-color: #f8f9fa;
}


footer {
    margin-top: 2rem;
}