:root {
    --primary-color: #2ecc71;
    --secondary-color: #27ae60;
    --dark-color: #2c3e50;
    --light-color: #ecf0f1;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

.bg-gradient {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.card {
    border-radius: 15px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.btn-success {
    background: linear-gradient(135deg, #2ecc71 0%, #27ae60 100%);
    border: none;
    border-radius: 10px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(46, 204, 113, 0.3);
}

.navbar {
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.reward-card {
    cursor: pointer;
    transition: all 0.3s ease;
}

.reward-card:hover {
    transform: translateY(-10px);
}

.table {
    border-radius: 10px;
    overflow: hidden;
}

.badge {
    padding: 8px 12px;
    border-radius: 8px;
    font-weight: 500;
}

.progress {
    height: 10px;
    border-radius: 10px;
}

.form-control, .form-select {
    border-radius: 10px;
    border: 2px solid #e0e0e0;
    transition: all 0.3s ease;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(46, 204, 113, 0.25);
}

.alert {
    border-radius: 10px;
    border: none;
}

.stats-card {
    background: white;
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 20px;
}

@media (max-width: 768px) {
    .card-body {
        padding: 1.5rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.card {
    animation: fadeIn 0.6s ease-out;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 5px;
}

/* Gradient backgrounds for cards */
.bg-gradient-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.bg-gradient-success {
    background: linear-gradient(135deg, #2ecc71 0%, #27ae60 100%);
}

.bg-gradient-info {
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
}

.bg-gradient-warning {
    background: linear-gradient(135deg, #f39c12 0%, #e67e22 100%);
}

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

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15) !important;
}

/* Icon circle animation */
.rounded-circle {
    transition: transform 0.3s ease;
}

.card:hover .rounded-circle {
    transform: scale(1.1) rotate(5deg);
}

/* Progress bar styling */
.progress {
    border-radius: 10px;
    overflow: hidden;
}

.progress-bar {
    transition: width 1s ease;
}

/* Stats labels */
.card-title {
    letter-spacing: 0.5px;
    font-size: 0.85rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .display-6 {
        font-size: 1.5rem;
    }
    
    .rounded-circle {
        padding: 8px !important;
    }
    
    .rounded-circle i {
        font-size: 1.2rem !important;
    }
    
    .card-title {
        font-size: 0.7rem;
    }
}

/* Animation for numbers */
@keyframes countUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.display-6 {
    animation: countUp 0.6s ease-out;
}