:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --background-color: #ffffff;
    --text-color: #2c3e50;
    --card-bg: #d4e0ec;
    --card-hover: #e9ecef;
    --shadow-color: rgba(0, 0, 0, 0.5);
}

[data-theme="dark"] {
    --primary-color: #ecf0f1;
    --secondary-color: #3498db;
    --background-color: #1a1a1a;
    --text-color: #ecf0f1;
    --card-bg: #2d2d2d;
    --card-hover: #3d3d3d;
    --shadow-color: rgba(0, 0, 0, 0.3);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    text-align: center;
    margin-bottom: 0.5rem;
    animation: fadeIn 1s ease;
}

h1 {
    font-size: 2rem;
    margin-bottom: 0.8rem;
    color: var(--primary-color);
}

.subtitle {
    font-size: 1.2rem;
    color: var(--secondary-color);
    opacity: 0.8;
}

.cards-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
    flex-grow: 1;
}

.card {
    background-color: var(--card-bg);
    border-radius: 15px;
    padding: 2rem;
    text-decoration: none;
    color: var(--text-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 6px var(--shadow-color);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px var(--shadow-color);
    background-color: var(--card-hover);
}

.card-content {
    text-align: center;
}

.card i {
    font-size: 3rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.card h2 {
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
}

.card p {
    opacity: 0.8;
    font-size: 1rem;
}

footer {
    text-align: center;
    padding: 1rem 0;
    margin-top: auto;
}

.social-links {
    margin-bottom: 1rem;
}

.social-link {
    color: var(--text-color);
    font-size: 1.5rem;
    margin: 0 1rem;
    transition: color 0.3s ease;
}

.social-link:hover {
    color: var(--secondary-color);
}

.copyright {
    opacity: 0.7;
    font-size: 0.9rem;
}

.theme-toggle {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background-color: var(--secondary-color);
    color: white;
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    box-shadow: 0 2px 5px var(--shadow-color);
    transition: transform 0.3s ease;
}

.theme-toggle:hover {
    transform: scale(1.1);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }

    h1 {
        font-size: 2rem;
    }

    .subtitle {
        font-size: 1rem;
    }

    .cards-container {
        grid-template-columns: 1fr;
    }

    .card {
        padding: 1.5rem;
    }
} 

.card-image {
    max-width: 100%; /* Asegura que la imagen no exceda el ancho del contenedor */
    height: auto; /* Mantiene la proporción de la imagen */
    border-radius: 10px; /* Opcional: redondea las esquinas de la imagen */
    display: block; /* Asegura que la imagen no tenga comportamiento inline */
    margin: 0 auto 1rem; /* Centra la imagen y agrega un margen inferior */
    object-fit: cover; /* Ajusta cómo se escala la imagen dentro de su contenedor */
}