: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;
    background-color: #f8f9fa;
    min-height: 100vh;
}

.navbar-brand {
    font-weight: 600;
    font-size: 1.25rem;
}

.card {
    border: none;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 20px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
}

.card-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0056b3 100%);
    color: white;
    border-radius: 10px 10px 0 0 !important;
    padding: 15px 20px;
    font-weight: 600;
}

.stat-card {
    background: white;
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: transform 0.2s;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-card .icon {
    font-size: 3rem;
    margin-bottom: 10px;
}

.stat-card .value {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
}

.stat-card .label {
    color: var(--secondary-color);
    font-size: 0.9rem;
    text-transform: uppercase;
}

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

.table thead {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0056b3 100%);
    color: white;
}

.btn {
    border-radius: 5px;
    padding: 8px 20px;
    font-weight: 500;
    transition: all 0.3s;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.form-control, .form-select {
    border-radius: 5px;
    border: 1px solid #dee2e6;
    padding: 10px 15px;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

.modal-content {
    border-radius: 10px;
    border: none;
}

.modal-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0056b3 100%);
    color: white;
    border-radius: 10px 10px 0 0;
}

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

.badge {
    padding: 6px 12px;
    border-radius: 5px;
    font-weight: 500;
}

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

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

.status-badge {
    padding: 5px 10px;
    border-radius: 5px;
    font-size: 0.85rem;
    font-weight: 500;
}

.status-active { background-color: #d4edda; color: #155724; }
.status-inactive { background-color: #f8d7da; color: #721c24; }
.status-planned { background-color: #d1ecf1; color: #0c5460; }
.status-in_progress { background-color: #fff3cd; color: #856404; }
.status-completed { background-color: #d4edda; color: #155724; }