/* Global Styles */
body {
    background-color: #f8f9fa;
    color: #212529;
    padding-top: 2rem;
    padding-bottom: 2rem;
}

.container {
    max-width: 1200px;
}

/* Page Header */
.page-header {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #dee2e6;
}

.page-header h1 {
    margin-bottom: 0.5rem;
    color: #212529;
}

.page-header .lead {
    color: #6c757d;
}

/* Cards */
.card {
    border: none;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    margin-bottom: 1.5rem;
}

.card-header {
    background-color: #fff;
    border-bottom: 1px solid #e9ecef;
    padding: 1rem 1.25rem;
}

.card-body {
    padding: 1.25rem;
}

/* Buttons */
.btn {
    font-weight: 500;
    padding: 0.5rem 1rem;
}

.btn-primary {
    background-color: #0d6efd;
    border-color: #0d6efd;
}

.btn-primary:hover {
    background-color: #0b5ed7;
    border-color: #0a58ca;
}

.btn-outline-primary {
    color: #0d6efd;
    border-color: #0d6efd;
}

.btn-outline-primary:hover {
    background-color: #0d6efd;
    color: #fff;
}

/* Icons */
.bi {
    margin-right: 0.5rem;
}

/* Forms */
.form-control {
    border: 1px solid #dee2e6;
    padding: 0.5rem 0.75rem;
}

.form-control:focus {
    border-color: #86b7fe;
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}

/* Loading States */
.loading-spinner {
    display: inline-block;
    width: 1rem;
    height: 1rem;
    border: 2px solid #f3f3f3;
    border-top: 2px solid #0d6efd;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Alerts */
.alert {
    border: none;
    border-radius: 0.25rem;
    padding: 1rem;
    margin-bottom: 1rem;
}

/* Lists */
.list-group {
    border-radius: 0.25rem;
    overflow: hidden;
}

.list-group-item {
    border: 1px solid #e9ecef;
    padding: 1rem;
}

/* Navigation */
.nav-link {
    color: #495057;
    padding: 0.5rem 1rem;
}

.nav-link:hover {
    color: #0d6efd;
}

.nav-link.active {
    color: #0d6efd;
    font-weight: 500;
}

/* Progress Bars */
.progress {
    height: 0.5rem;
    border-radius: 0.25rem;
    background-color: #e9ecef;
}

.progress-bar {
    background-color: #0d6efd;
}

/* Utilities */
.text-muted {
    color: #6c757d !important;
}

.text-primary {
    color: #0d6efd !important;
}

.bg-light {
    background-color: #f8f9fa !important;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    body {
        padding-top: 1rem;
        padding-bottom: 1rem;
    }
    
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    .card {
        margin-bottom: 1rem;
    }
}