/* ── TABLA ── */
table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 24px;
    background-color: white;
}

thead {
    position: sticky;
    top: 60px;
    z-index: 50;
    background-color: white;
    box-shadow: 0 2px 6px rgba(103, 80, 164, 0.18);
    display: none;
}

thead.visible {
    display: table-header-group;
}

th,
td {
    padding: 12px;
    text-align: left;
    border: 1px solid #222;
}

th {
    background-color: #4A3880;
    font-weight: 600;
    color: #fff;
    text-align: left;
    position: sticky;
    top: 60px;
    z-index: 50;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    border: 1px solid #222;
    border-bottom: 2px solid #222;
}

tbody tr {
    transition: background-color 0.15s ease;
}

tbody tr:hover {
    background-color: #DDD6F3;
}

/* ── COLORES POR AÑO (saturados) ── */
tr.fila-primer-anio  { background-color: #C9A7F4; } /* lila    — 1° año */
tr.fila-segundo-anio { background-color: #90CAF9; } /* celeste — 2° año */
tr.fila-tercer-anio  { background-color: #FFD9A0; } /* durazno — 3° año */
tr.fila-cuarto-anio  { background-color: #A5D6A7; } /* verde   — 4° año */

/* ── FILA MARCADA (checkbox tildado) ── */
tr.fila-marcada {
    background-color: #7E57C2 !important;
}
tr.fila-marcada td {
    color: white !important;
    font-weight: 500;
}
tr.fila-marcada .info-correlativas {
    color: #EDE7F6 !important;
}
tr.fila-marcada .custom-checkbox {
    border-color: white !important;
    background-color: transparent;
}
tr.fila-marcada .custom-checkbox:checked {
    background-color: white !important;
    border-color: white !important;
}
tr.fila-marcada .custom-checkbox:checked::after {
    border-color: #6750A4 !important;
}
tr.fila-marcada:hover {
    background-color: #6A4FB8 !important;
}

/* ── CHECKBOXES ── */
.checkbox-cell {
    text-align: center;
}

.checkbox-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
}

.custom-checkbox {
    appearance: none;
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    min-width: 20px;
    cursor: pointer;
    border: 2px solid #333;
    border-radius: 3px;
    background-color: white;
    position: relative;
    transition: background-color 0.15s ease, border-color 0.15s ease;
}

.custom-checkbox:checked {
    background-color: #6750A4;
    border-color: #6750A4;
}

.custom-checkbox:checked::after {
    content: '';
    position: absolute;
    left: 5px;
    top: 1px;
    width: 6px;
    height: 11px;
    border: 2.5px solid white;
    border-top: none;
    border-left: none;
    transform: rotate(45deg);
}

.custom-checkbox:disabled {
    border-color: #9E9E9E;
    background-color: #F5F5F5;
    cursor: not-allowed;
}

.checkbox-deshabilitado {
    opacity: 0.5;
    cursor: not-allowed;
}

.info-correlativas {
    font-size: 11px;
    color: #1C1B1F;
    font-weight: 700;
    margin-top: 4px;
    display: block;
    font-style: italic;
}


/* ── RESPONSIVE ── */
@media (max-width: 768px) {
    .container {
        padding: 0 1%;
        margin-top: 50px;
    }

    th,
    td {
        padding: 8px;
    }


    thead {
        top: 50px;
    }

    th {
        top: 50px;
    }
}