/* Main Styles */
:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
}

/* Header Styles */
.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
}

.navbar-brand img {
    transition: transform 0.3s;
}

.navbar-brand:hover img {
    transform: scale(1.1);
}

/* Card Styles */
.card {
    border: none;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    transition: all 0.3s;
}

.card:hover {
    box-shadow: 0 5px 20px rgba(0,0,0,0.12);
}

/* Button Styles */
.btn {
    border-radius: 6px;
    padding: 8px 20px;
    font-weight: 500;
    transition: all 0.3s;
}

.btn:hover {
    transform: translateY(-2px);
}

/* Form Styles */
.form-control, .form-select {
    border-radius: 6px;
    border: 1px solid #dee2e6;
    padding: 10px 15px;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}

/* Badge Styles */
.badge {
    font-weight: 500;
    padding: 5px 10px;
}

/* Alert Styles */
.alert {
    border: none;
    border-radius: 8px;
}

/* Table Styles */
.table {
    border-collapse: separate;
    border-spacing: 0;
}

.table th {
    border-top: none;
    font-weight: 600;
    color: #495057;
}

        .sidebar {
            background: linear-gradient(to bottom, var(--primary-color), var(--secondary-color));
            color: white;
            min-height: 100vh;
            padding-top: 20px;
            box-shadow: 3px 0 15px rgba(0,0,0,0.1);
        }
        
        .sidebar a {
            color: #ecf0f1;
            padding: 12px 15px;
            display: block;
            text-decoration: none;
            border-radius: 8px;
            margin: 8px 10px;
            transition: all 0.3s ease;
            font-weight: 500;
        }
        
        .sidebar a:hover, .sidebar a.active {
            background: rgba(255,255,255,0.1);
            color: white;
            transform: translateX(5px);
        }
        
        .sidebar .nav-link i {
            width: 25px;
            text-align: center;
            margin-right: 12px;
            font-size: 1.1em;
        }
        
        .sidebar .brand {
            padding: 20px;
            text-align: center;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            margin-bottom: 20px;
        }
        
        .brand h4 {
            margin: 0;
            color: white;
            font-weight: 600;
        }
        
        .brand small {
            color: #bdc3c7;
            font-size: 0.8em;
        }
        
        .stat-card {
            border: none;
            border-radius: 15px;
            padding: 25px;
            color: white;
            margin-bottom: 20px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }
        
        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 100px;
            height: 100px;
            background: rgba(255,255,255,0.1);
            border-radius: 50%;
            transform: translate(30px, -30px);
        }
        
        .stat-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.15);
        }
        
        .stat-card i {
            font-size: 45px;
            opacity: 0.9;
            margin-bottom: 15px;
        }
        
        .stat-card .number {
            font-size: 2.5em;
            font-weight: 700;
            margin: 10px 0;
        }
        
        .stat-card .label {
            font-size: 0.9em;
            opacity: 0.9;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        
        .dashboard-content {
            padding: 30px;
            background: transparent;
        }
        
        .dashboard-header {
            background: white;
            border-radius: 15px;
            padding: 25px;
            margin-bottom: 30px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        
        .section-card {
            background: white;
            border-radius: 15px;
            padding: 25px;
            margin-bottom: 30px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            border: none;
        }
        
        .section-card .card-header {
            background: transparent;
            border: none;
            padding: 0 0 20px 0;
            margin: 0;
        }
        
        .section-card .card-header h5 {
            color: var(--primary-color);
            font-weight: 600;
            margin: 0;
            display: flex;
            align-items: center;
        }
        
        .section-card .card-header h5 i {
            margin-right: 10px;
            color: var(--accent-color);
        }
        
        .badge-custom {
            padding: 6px 12px;
            border-radius: 20px;
            font-weight: 600;
            font-size: 0.85em;
        }
        
        .action-buttons .btn {
            padding: 6px 15px;
            font-size: 0.85em;
            border-radius: 20px;
            margin: 2px;
        }
        
        .activity-item {
            padding: 15px;
            border-left: 4px solid var(--accent-color);
            margin-bottom: 15px;
            background: #f8f9fa;
            border-radius: 8px;
            transition: all 0.3s;
        }
        
        .activity-item:hover {
            background: #e9ecef;
            transform: translateX(5px);
        }
        
        .activity-time {
            font-size: 0.8em;
            color: #6c757d;
        }
        
        .qr-preview {
            width: 80px;
            height: 80px;
            border: 2px dashed #dee2e6;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s;
        }
        
        .qr-preview:hover {
            border-color: var(--accent-color);
            background: #f8f9fa;
        }
        
        .qr-preview img {
            max-width: 100%;
            max-height: 100%;
            border-radius: 5px;
        }
        
        .nav-tabs .nav-link {
            border: none;
            color: #6c757d;
            font-weight: 500;
            padding: 10px 20px;
        }
        
        .nav-tabs .nav-link.active {
            color: var(--primary-color);
            border-bottom: 3px solid var(--accent-color);
        }
        
        .quick-approve-btn {
            background: linear-gradient(135deg, var(--success-color), #2ecc71);
            border: none;
            padding: 8px 20px;
            border-radius: 25px;
            color: white;
            font-weight: 600;
            transition: all 0.3s;
        }
        
        .quick-approve-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(46, 204, 113, 0.3);
        }
        
        .quick-reject-btn {
            background: linear-gradient(135deg, var(--danger-color), #e74c3c);
            border: none;
            padding: 8px 20px;
            border-radius: 25px;
            color: white;
            font-weight: 600;
            transition: all 0.3s;
        }
        
        .quick-reject-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(231, 76, 60, 0.3);
        }
        
        .empty-state {
            text-align: center;
            padding: 40px 20px;
            color: #6c757d;
        }
        
        .empty-state i {
            font-size: 3em;
            margin-bottom: 15px;
            color: #dee2e6;
        }
        
        .dashboard-widget {
            background: white;
            border-radius: 15px;
            padding: 20px;
            height: 100%;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: all 0.3s;
        }
        
        .dashboard-widget:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        }
        
        .user-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-color), #2980b9);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 1.2em;
        }


/* Print Styles */
@media print {
    .no-print {
        display: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
}

/* Responsive Styles */
@media (max-width: 768px) {
    .container {
        padding-left: 15px;
        padding-right: 15px;
    }
    
    .display-4 {
        font-size: 2rem;
    }
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Utility Classes */
.shadow-sm {
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.shadow-md {
    box-shadow: 0 4px 6px rgba(0,0,0,0.07);
}

.shadow-lg {
    box-shadow: 0 10px 15px rgba(0,0,0,0.1);
}