/* Hoja de estilo principal para index.html */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    background-color: #f9f9f9;
    color: #333333;
    line-height: 1.5;
}

.container {
    width: 90%;
    max-width: 1000px;
    margin: 0 auto;
    padding: 15px 0;
}

.header {
    background-color: #003366;
    color: #ffffff;
    padding: 20px 0;
    text-align: center;
    border-bottom: 3px solid #001f3f;
}

.header h1 {
    font-size: 22px;
    margin-bottom: 5px;
}

.subtitulo {
    font-size: 14px;
    color: #dddddd;
    margin-bottom: 10px;
}

.card-estudiante {
    display: inline-block;
    background-color: #002244;
    padding: 6px 12px;
    border: 1px solid #001122;
    font-size: 13px;
}

.seccion-bloque {
    margin-top: 20px;
    background-color: #ffffff;
    border: 1px solid #cccccc;
    padding: 15px;
}

.seccion-bloque h2 {
    font-size: 16px;
    color: #003366;
    border-bottom: 2px solid #003366;
    padding-bottom: 5px;
    margin-bottom: 15px;
}

.grid-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 15px;
}

.card {
    background: #ffffff;
    border: 1px solid #b3c0d1;
    padding: 12px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.card-full {
    grid-column: 1 / -1;
}

.card h3 {
    font-size: 15px;
    color: #003366;
    margin-bottom: 5px;
}

.card p {
    font-size: 13px;
    color: #555555;
    margin-bottom: 10px;
}

.acciones {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 5px 10px;
    font-size: 12px;
    font-weight: bold;
    text-decoration: none;
    color: #ffffff;
    border: 1px solid #333333;
    text-align: center;
}

.btn-xml {
    background-color: #d9534f;
    border-color: #d43f3a;
}

.btn-xml:hover {
    background-color: #c9302c;
}

.btn-json {
    background-color: #5cb85c;
    border-color: #4cae4c;
}

.btn-json:hover {
    background-color: #449d44;
}

.btn-css {
    background-color: #337ab7;
    border-color: #2e6da4;
}

.btn-css:hover {
    background-color: #286090;
}

.footer {
    text-align: center;
    padding: 15px 0;
    margin-top: 30px;
    background-color: #003366;
    color: #ffffff;
    font-size: 12px;
    border-top: 1px solid #001f3f;
}