/* Standards Container Styles */
.standards-container {
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    padding: 2rem;
}

/* Standards Selector Styles */
.standards-selector {
    background-color: #f8f9fa;
    border-radius: 6px;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.form-label {
    font-weight: 500;
    color: #495057;
}

.form-select {
    border-color: #dee2e6;
    transition: border-color 0.15s ease-in-out;
}

.form-select:focus {
    border-color: #80bdff;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

/* Standards Display Styles */
.standards-display {
    margin-top: 2rem;
}

/* Tab Navigation Styles */
.nav-tabs {
    border-bottom: 2px solid #dee2e6;
    margin-bottom: 1.5rem;
}

.nav-tabs .nav-link {
    border: none;
    color: #6c757d;
    font-weight: 500;
    padding: 0.75rem 1.25rem;
    margin-right: 0.5rem;
    transition: all 0.2s ease-in-out;
}

.nav-tabs .nav-link:hover {
    color: #495057;
    border-bottom: 2px solid #adb5bd;
}

.nav-tabs .nav-link.active {
    color: #007bff;
    border-bottom: 2px solid #007bff;
    background-color: transparent;
}

/* Table Styles */
.table {
    margin-bottom: 0;
}

.table-dark {
    background-color: #343a40;
}

.table th {
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.875rem;
}

.table td {
    vertical-align: middle;
}

/* Performance Tier Cards Styles */
.performance-tier-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
}

.card {
    border-radius: 8px;
    transition: transform 0.2s ease-in-out;
}

.card:hover {
    transform: translateY(-5px);
}

.card-header {
    border-top-left-radius: 8px;
    border-top-right-radius: 8px;
    padding: 1rem;
}

.card-title {
    color: #fff;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
}

/* Chart Styles */
#score-chart-visualization {
    height: 300px;
    margin-top: 2rem;
    padding: 1rem;
    background-color: #f8f9fa;
    border-radius: 8px;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .standards-container {
        padding: 1rem;
    }

    .standards-selector {
        padding: 1rem;
    }

    .performance-tier-cards {
        grid-template-columns: 1fr;
    }

    .nav-tabs .nav-link {
        padding: 0.5rem 0.75rem;
        font-size: 0.875rem;
    }
}

/* Animation Styles */
.tab-pane {
    animation: fadeIn 0.3s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Print Styles */
@media print {
    .standards-selector,
    .nav-tabs {
        display: none;
    }

    .tab-pane {
        display: block !important;
        opacity: 1 !important;
    }

    .card {
        break-inside: avoid;
    }
}