/* Custom styles for the worksheet management system */
body {
    background-color: #f8f9fa;
}

.sidebar {
    width: 250px;
    box-shadow: 2px 0 5px rgba(0,0,0,0.1);
    z-index: 1000;
}

.sidebar .nav-link {
    padding: 0.75rem 1rem;
    border-radius: 0.25rem;
    margin-bottom: 0.25rem;
}

.sidebar .nav-link:hover {
    background-color: rgba(255,255,255,0.1);
}

.sidebar .nav-link.active {
    background-color: #0d6efd;
}

.main-content {
    margin-left: 250px;
}

.card {
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    border: 1px solid rgba(0, 0, 0, 0.125);
    transition: transform 0.2s;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.stats-card {
    text-align: center;
    padding: 0;
    overflow: hidden;
}

.stats-card .card-body {
    padding: 1.5rem;
}

.stats-card .card-footer {
    padding: 0;
}

.stats-number {
    font-size: 2rem;
    font-weight: bold;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .sidebar {
        position: relative;
        width: 100%;
        height: auto;
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .stats-card {
        margin-bottom: 1rem;
    }
}

/* Badge styling */
.badge {
    font-size: 0.75em;
}

/* Table styling */
.table th {
    border-top: none;
    font-weight: 600;
}

/* Button styling */
.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
}


.min-vh-100 {
    min-height: 100vh;
}

.bg-primary {
    background: linear-gradient(135deg, #3498db 0%, #2c3e50 100%) !important;
}

.card {
    border-radius: 15px;
}

.card-header {
    border-radius: 15px 15px 0 0 !important;
}

.btn-primary {
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    border: none;
    border-radius: 8px;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #2980b9 0%, #2573a7 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(52, 152, 219, 0.3);
}

.input-group-text {
    border-radius: 8px 0 0 8px;
}

.form-control {
    border-radius: 0 8px 8px 0;
}

.shadow-lg {
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1) !important;
}

.feature-icon {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}