/* Student Work Assignment System - Custom Styles */

/* Smooth transitions */
* {
    transition: background-color 0.2s ease, border-color 0.2s ease;
}

/* Card hover effects */
.content-card {
    transition: box-shadow 0.3s ease, transform 0.2s ease;
}

/* Button hover lift */
.btn {
    transition: all 0.2s ease;
}

.btn:hover {
    transform: translateY(-1px);
}

/* Table row animations */
.table-modern tbody tr {
    transition: background-color 0.15s ease;
}

/* Form focus animations */
.form-control-modern, .form-select {
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

/* Loading spinner */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Pulse animation for badges */
.pulse-badge {
    animation: pulse-badge 2s infinite;
}

@keyframes pulse-badge {
    0% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.4); }
    70% { box-shadow: 0 0 0 10px rgba(239, 68, 68, 0); }
    100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
}

/* Fade in animation */
.fade-in {
    animation: fadeIn 0.3s ease;
}

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

/* Slide in from right */
.slide-in-right {
    animation: slideInRight 0.3s ease;
}

@keyframes slideInRight {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* Custom scrollbar for sidebar */
.sidebar::-webkit-scrollbar {
    width: 4px;
}

.sidebar::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.2);
    border-radius: 2px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
    background: rgba(255,255,255,0.3);
}

/* Responsive table */
@media (max-width: 768px) {
    .table-modern {
        font-size: 12px;
    }
    
    .table-modern thead th,
    .table-modern tbody td {
        padding: 10px 12px;
    }
}

/* Print styles */
@media print {
    .sidebar,
    .top-navbar,
    .btn {
        display: none !important;
    }
    
    .main-content {
        margin-left: 0 !important;
    }
}