/* Estilos para o Diário de Notas (Grade) */
.grade-table-container {
    overflow-x: auto;
    background: white;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.grade-table {
    width: 100%;
    border-collapse: separate;
    /* Importante para sticky headers */
    border-spacing: 0;
}

.grade-table th,
.grade-table td {
    border-bottom: 1px solid var(--border-color);
    border-right: 1px solid var(--border-color);
    padding: 0;
    min-width: 60px;
}

/* Coluna de Alunos (Fixa a esquerda) */
.col-student {
    position: sticky;
    left: 0;
    background-color: white;
    z-index: 10;
    min-width: 200px;
    padding: 0.75rem !important;
    font-weight: 500;
    font-size: 0.85rem;
    border-right: 2px solid var(--border-color) !important;
}

/* Cabeçalhos das Avaliações (Verticais) */
.th-grade {
    height: 140px;
    vertical-align: bottom;
    padding-bottom: 0.5rem !important;
    background-color: #f9fafb;
    position: relative;
}

.th-grade-label {
    writing-mode: vertical-rl;
    transform: rotate(180deg);
    white-space: nowrap;
    text-align: left;
    margin: 0 auto;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
}

.th-grade-meta {
    display: block;
    text-align: center;
    font-size: 0.7rem;
    color: var(--text-muted);
    border-top: 1px solid #e5e7eb;
    margin-top: 4px;
    padding-top: 2px;
}

/* Inputs de Nota */
.input-grade {
    width: 100%;
    height: 40px;
    /* Altura da linha */
    border: none;
    text-align: center;
    font-size: 0.9rem;
    background: transparent;
    transition: background 0.2s;
}

.input-grade:hover,
.input-grade:focus {
    background-color: #eff6ff;
    /* Azul claro ao focar */
    outline: 2px solid var(--primary-color);
    outline-offset: -2px;
}

/* Coluna de Média */
.col-average {
    background-color: #f3f4f6;
    font-weight: bold;
    text-align: center;
    width: 70px;
}

.avg-pass {
    color: var(--success);
}

.avg-danger {
    color: var(--danger);
}

.avg-warning {
    color: var(--warning);
}

/* Toolbar de Notas */
.grades-toolbar {
    padding: 1rem;
    background: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    border-radius: 8px 8px 0 0;
}