:root {
    --bg-body: #f3f3f3;
    --header-bg: #003a63;
    --header-text: #ffffff;

    --nav-bg: #005a99;
    --nav-text: #ffffff;

    --section-bg: #ffffff;

    --article-bg: #e6f2ff;
    --article-border: #005a99;

    --card-bg: #005a99;
    --card-border: #003a63;
    --card-text: #ffffff;

    --footer-bg: #003a63;
    --footer-text: #ffffff;

    --shadow-color: rgba(0, 0, 0, 0.55);
}

/* html, body {
    height: 100%;
    margin: 0;
} */

body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: var(--bg-body);
     display: flex;
    flex-direction: column;
    min-height: 100vh;
}

header {
    background: var(--header-bg);
    color: var(--header-text);
    padding: 20px;
    text-align: center;
}

nav {
    background: var(--nav-bg);
    padding: 10px;
    display: flex;
    justify-content: center;
    gap: 20px;
}

nav a {
    color: var(--nav-text);
    text-decoration: none;
    font-weight: bold;
}

section {
    padding: 30px;
    background: var(--section-bg);
}

article {
    background: var(--article-bg);
    padding: 20px;
    margin: 20px;
    border-left: 10px solid var(--article-border);
    border-radius: 1rem;
    display: flex;
    overflow: hidden;
    position: relative;
}

.mente img{
    width: 350px;
    position: absolute;
    right:40px;
    top: -1px;
    animation: float 3s ease-in-out infinite;


}
.servicios {
    padding: 20px;
    background: var(--section-bg);
}

footer {
    background: var(--footer-bg);
    color: var(--footer-text);
    padding: 15px;
    text-align: center;
    margin-top: 30px;


}

.cards h2{
    font-size: 3rem;
}
.cartas {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(4, 200px);
    gap: 20px;
}
.cards img{
    filter: brightness(80%);

}
.cards {
    background-color: var(--card-bg);
    padding: 1rem;
    color: var(--card-text);
    border-radius: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
    position: relative;
    border-bottom: 1rem solid var(--card-border);
    border-left: 1rem solid var(--card-border);

    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.cards:hover {
    transform: translateY(-10px);
    box-shadow: 0px 15px 20px var(--shadow-color);
}


.cardOne {
    display: flex;
    justify-content: space-between;
    flex-direction: row;
    grid-column: 1 / 3;
    grid-row: 1 / 3;

   
}

.cardTwo {
    display: flex;
    grid-column: 3 / 4;
    grid-row: 1 / 2;
}

.cardThree {
    display: flex;
    grid-column: 3 / 4;
    grid-row: 2 / 3;
}

.cardFour {
    display: flex;
    flex-direction: column;
    grid-column: 1 / 2;
    grid-row: 3 / 5;
}

.cardFive {
    display: flex;
    grid-column: 2 / 4;
    grid-row: 3 / 5;
}




.cardOne img{
    width: 500px;
    position: absolute;
    right: 20px;
    top: -25px;


}

.cardTwo img{

    width: 400px;
    position: absolute;
    right: -130px;
    top: -10px;
}

.cardThree img{
    width: 250px;
     position: absolute;
    right: 40px;
    top: -10px;


}

.cardFour h2{
    z-index: 1;
}

.cardFour img{
    width: 300px;
    position: absolute;
    right:-30px;
    top: 40px;
}

.cardFive img{
     width: 700px;
    position: absolute;
    right:-30px;
    top: -90px;
}

.portal{
    text-align: center;
    font-size: 2rem;
}


.info-index, h2 p{
    text-align: center;
}



@keyframes float {
    0% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
    100% { transform: translateY(0); }
}



/* CSS Contacto.html*/

#contact-section {
    background: white;
    color: var(--header-bg);
    padding: 20px;
    text-align: center;
    display: flex;
    gap: 20px;         /* separación entre los fieldsets */
    flex-wrap: wrap;
    border-radius: 1.5rem;
    width: 80%;
    justify-content: center;
    margin: 0 auto 0 auto;
    margin-top: 3rem;
    box-shadow: 0 2px 10px rgba(0,0,0,0.15); /**/
}
#contact-form{
    display: grid;
    align-content: stretch;
    justify-content: space-evenly;
    align-items: start;
    justify-items: start;
    background: var(--header-bg);
    border-radius: 1rem;
    padding: 1rem;
}

.form1 {
    grid-column: 1 / 3;
    grid-row: 1 / 3;
}

legend {
    background: var(--header-bg);
    color : var(--header-text)
}

label {
    color : var(--header-text)
}


/*CSS Biblioteca */

.book-cover {
    width: 300px;      /* el ancho que quieras */
    height: 400px;     /* el alto que quieras */
     /* recorta la imagen sin deformarla */
    border-radius: 8px; /* opcional */
    object-fit: cover; 
}

.library-section {
    display: flex;

}.library-title {
    margin: 0 auto 0 auto;
    width: 220px;

}

.book-catalog {
    display: grid;
    gap: 20px; /* espacio entre tarjetas */
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    padding: 20px 0;
}

.book-card {
    display: flex;
    justify-content: center;
    margin: 5rem;
    flex-direction: column;
    align-items: center;
    background-color: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.15);
    padding: 1rem;
    transition: transform 0.5s, box-shadow 0.5s;

}

.book-card:hover {
    transform: translateY(-20px);
    box-shadow: 0px 20px 30px rgba(0, 0, 0, 0.473);
}

footer {
  
    margin-top: auto;
    background: #003a63;
    color: white;
    text-align: center;
    padding: 15px;
    width: 1809px;
}
 
.resource-list  a {
    text-decoration: none;
    color : black;
    transition: color 0.5s;


}

.resource-list  a:hover {
    color: var(--article-border);
}
.resource-list li {
    list-style: none;
}

.resource-list {
    display: flex;
    gap: 2rem;
}



.materiales {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 5rem;
    flex-direction: column;

}

fieldset {
    width: 97%;
}

input {

    margin: 1.5rem;
}