/* ==========================================================================
   Sistema de Calificaciones - Estilos CSS
   ========================================================================== */

/* FRONTEND - Formulario de Profesor */
#sistema-calificaciones {
    max-width: 1200px;
    margin: 20px 0;
}

.seleccionar-materia {
    margin-bottom: 20px;
}

.seleccionar-materia select {
    width: 100%;
    max-width: 500px;
    padding: 8px;
}

.tabla-calificaciones {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

.tabla-calificaciones th,
.tabla-calificaciones td {
    border: 1px solid #ddd;
    padding: 8px;
    text-align: left;
}

.tabla-calificaciones th {
    background-color: #f2f2f2;
    font-weight: bold;
}

.calificacion-input {
    width: 60px;
    padding: 4px;
    text-align: center;
}

.calificacion-input.error {
    border: 2px solid #dc3232;
    background-color: #fbeaea;
}

.promedio-cell {
    font-weight: bold;
    background-color: #e7f3ff;
}

#guardar-calificaciones {
    margin: 20px 0;
    padding: 10px 20px;
}

/* DASHBOARD FRONTEND */
.dashboard-frontend {
    max-width: 1200px;
    margin: 20px auto;
    padding: 20px;
}

.dashboard-stats-frontend {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 20px 0;
}

.stat-card-frontend {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    text-align: center;
    border-left: 4px solid #0073aa;
}

.stat-card-frontend.aprobados-frontend {
    border-left-color: #4bc0c0;
}

.stat-card-frontend.reprobados-frontend {
    border-left-color: #ff6384;
}

.stat-card-frontend h3 {
    margin: 0 0 10px 0;
    color: #666;
    font-size: 14px;
}

.stat-number-frontend {
    font-size: 32px;
    font-weight: bold;
    color: #0073aa;
}

.dashboard-filters-frontend {
    background: white;
    padding: 20px;
    border-radius: 8px;
    margin: 20px 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.filters-row-frontend {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    align-items: end;
}

.filter-group-frontend label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

.filter-group-frontend select {
    width: 100%;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.btn-primary-frontend {
    background: #0073aa;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
}

.btn-primary-frontend:hover {
    background: #005a87;
}

.btn-secondary-frontend {
    background: #666;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

.btn-secondary-frontend:hover {
    background: #555;
}

.dashboard-charts-frontend {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin: 20px 0;
    justify-content: space-between;
}

.chart-container-frontend {
    background: white;
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    flex: 1 1 calc(25% - 15px);
    max-width: calc(25% - 15px);
    min-width: 250px;
}

/* Hacer todas las gráficas a 2/3 del tamaño */
.chart-container-frontend canvas {
    max-height: 200px !important;
}

/* Hacer la gráfica de aprobados más pequeña (la mitad) */
.chart-container-frontend:nth-child(2) {
    flex: 1 1 calc(15% - 15px);
    max-width: calc(15% - 15px);
    min-width: 180px;
}

.chart-container-frontend:nth-child(2) canvas {
    max-height: 150px !important;
}

.dashboard-table-frontend {
    background: white;
    padding: 20px;
    border-radius: 8px;
    margin: 20px 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.dashboard-export-frontend {
    background: white;
    padding: 20px;
    border-radius: 8px;
    margin: 20px 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* DASHBOARD ADMIN */
.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 20px 0;
}

.stat-card {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    text-align: center;
    border-left: 4px solid #0073aa;
}

.stat-card.aprobados {
    border-left-color: #4bc0c0;
}

.stat-card.reprobados {
    border-left-color: #ff6384;
}

.stat-card h3 {
    margin: 0 0 10px 0;
    color: #666;
    font-size: 14px;
}

.stat-number {
    font-size: 32px;
    font-weight: bold;
    color: #0073aa;
}

.dashboard-filters {
    background: white;
    padding: 20px;
    border-radius: 8px;
    margin: 20px 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.filters-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    align-items: end;
}

.filter-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

.filter-group select {
    width: 100%;
    padding: 5px;
}

.dashboard-charts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 20px;
    margin: 20px 0;
}

.chart-container {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.dashboard-table {
    background: white;
    padding: 20px;
    border-radius: 8px;
    margin: 20px 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.dashboard-export {
    background: white;
    padding: 20px;
    border-radius: 8px;
    margin: 20px 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* TABLAS DE RESULTADOS */
.results-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}

.results-table th,
.results-table td {
    border: 1px solid #ddd;
    padding: 8px;
    text-align: left;
}

.results-table th {
    background-color: #f2f2f2;
    font-weight: bold;
}

.results-table .aprobado {
    background-color: #d4edda;
}

.results-table .reprobado {
    background-color: #f8d7da;
}

/* NOTIFICACIONES */
.notice {
    padding: 10px;
    margin: 10px 0;
    border-left: 4px solid;
}

.notice-success {
    border-left-color: #46b450;
    background-color: #ecf7ed;
}

.notice-error {
    border-left-color: #dc3232;
    background-color: #fbeaea;
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .dashboard-charts-frontend {
        flex-direction: column;
    }
    
    .chart-container-frontend,
    .chart-container-frontend:nth-child(2) {
        flex: 1 1 100%;
        max-width: 100%;
        min-width: auto;
    }
    
    .filters-row-frontend {
        grid-template-columns: 1fr;
    }
    
    .dashboard-charts {
        grid-template-columns: 1fr;
    }
    
    .filters-row {
        grid-template-columns: 1fr;
    }
    
    .dashboard-stats {
        grid-template-columns: 1fr;
    }
    
    .dashboard-stats-frontend {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 1200px) and (min-width: 769px) {
    .dashboard-charts-frontend {
        justify-content: center;
    }
    
    .chart-container-frontend {
        flex: 1 1 calc(45% - 15px);
        max-width: calc(45% - 15px);
        min-width: 300px;
    }
    
    .chart-container-frontend:nth-child(2) {
        flex: 1 1 calc(35% - 15px);
        max-width: calc(35% - 15px);
        min-width: 250px;
    }
}