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

body {
    font-family: sans-serif;
    padding: 20px;
}

h1 {
    text-align: center;
    margin-bottom: 20px;
}

/* Controles de selects */
.control {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
    margin-bottom: 20px;
}

.control div {
    display: flex;
    flex-direction: column;
}

label {
    margin-bottom: 5px;
    font-weight: bold;
}

select {
    padding: 8px 12px;
    border: 1px solid black;
    font-size: 16px;
}

/* Tabla responsive */
table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

thead {
    background-color: green;
    color: white;
}

th {
    background-color: green; 
    color: white;
    border: 1px solid #ddd;
    padding: 10px;
    text-align: center;
    font-size: 16px;
}

td {
    border: 1px solid #ddd;
    padding: 10px;
    text-align: center;
    font-size: 16px;
    background-color: white; 
}

/* Botones de asistencia */
td button {
    padding: 8px 12px;
    margin: 2px;
    border: none;
    border-radius: 5px;
    font-weight: bold;
    color: white;
    cursor: pointer;
    min-width: 40px;
    transition: transform 0.1s;
}

button.presente { background-color: green; }
button.ausente  { background-color: red; }
button.tarde    { background-color: orange; }
button.retiro   { background-color: skyblue; }

/* Responsive móvil */
@media (max-width: 600px) {
    table, thead, tbody, th, td, tr {
        display: block;
    }

    thead tr {
        display: none;
    }

    tbody tr {
        margin-bottom: 15px;
        border: 1px solid #ccc;
        border-radius: 5px;
        padding: 10px;
        background-color: white; /* Fondo blanco */
    }

    tbody td {
        display: flex;
        justify-content: space-between;
        padding: 5px 10px;
        background-color: white; /* Fondo blanco */
    }

    tbody td::before {
        content: attr(data-label);
        font-weight: bold;
    }

    td button {
        margin: 0 2px;
        flex: 1;
    }
}