/* Biblioteca Styles - Mobile First Approach */

:root {
    --primary-color: #225581;
    --primary-dark: #14435e;
    --accent-color: #81dd36;
    --text-light: #FFFFFF;
    --text-dark: #333333;
    --bg-light: #F7F7F7;
    --bg-lighter: #FFFFFF;
    --border-light: #E0E0E0;
    --link-color: #2496ca;
}

/* Base styles for mobile */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background-color: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    margin: 0;
}

.contenido {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

/* Biblioteca section */
.biblioteca {
    width: 100%;
    background-color: var(--bg-lighter);
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    padding: 30px;
    text-align: center;
    min-height: 600px;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

.biblioteca h2 {
    color: var(--primary-color);
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--accent-color);
}

.filas-enlaces {
    display: flex;
    flex-direction: column;
    padding: 20px;
    border-radius: 6px;
    background-color: rgba(255, 255, 255, 0.7);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    margin: 0 auto;
    width: 100%;
    flex-grow: 1;
}

.fila {
    width: 100%;
    margin-bottom: 20px;
}

.fila ul li {
    margin-bottom: 15px;
    padding: 12px;
    border-radius: 4px;
    transition: all 0.3s ease;
    text-align: left;
    background-color: rgba(255, 255, 255, 0.5);
}

.fila ul li:hover {
    background-color: rgba(129, 221, 54, 0.1);
    transform: translateY(-2px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.fila ul li a {
    color: var(--link-color);
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
}

.fila ul li a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.fila img {
    width: 20px;
    height: auto;
    margin-right: 10px;
    vertical-align: middle;
}

/* Medium screens */
@media screen and (min-width: 768px) {
    .contenido {
        padding: 30px;
    }
    
    .biblioteca {
        padding: 25px;
    }
    
    .filas-enlaces {
        flex-direction: row;
        justify-content: space-between;
        align-items: flex-start;
        padding: 20px;
    }
    
    .fila {
        width: 48%;
        margin-bottom: 0;
    }
}

/* Large screens */
@media screen and (min-width: 992px) {
    .contenido {
        padding: 40px;
    }
    
    .biblioteca {
        padding: 30px;
        max-width: 900px;
        margin: 0 auto;
    }
    
    .filas-enlaces {
        padding: 25px;
    }
    
    .fila ul li {
        padding: 10px;
    }
}

/* Extra large screens */
@media screen and (min-width: 1200px) {
    .biblioteca {
        max-width: 1000px;
    }
    
    .filas-enlaces {
        width: 90%;
    }
}