:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --success-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    min-height: 100vh;
    color: #212529;
}

.card {
    border-radius: 16px;
    border: none;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    background: rgba(255, 255, 255, 0.95);
}

.card h2, .card h3, .card h4 {
    color: #212529;
    font-weight: 600;
}

.form-label {
    color: #212529;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.form-control, .form-select {
    background-color: #fff;
    color: #212529;
    border: 1px solid #dee2e6;
}

.form-control:focus, .form-select:focus {
    background-color: #fff;
    color: #212529;
    border-color: #667eea;
    box-shadow: 0 0 0 0.25rem rgba(102, 126, 234, 0.25);
}

.table {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
}

.table thead th {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border: none;
    font-weight: 600;
    padding: 1rem;
}

.table tbody td {
    padding: 1rem;
    vertical-align: middle;
    color: #212529;
}

.btn-primary {
    background: var(--primary-gradient);
    border: none;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    color: #fff;
}

.btn-primary:hover {
    filter: brightness(1.1);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
    color: #fff;
}

.btn-success {
    background: var(--success-gradient);
    border: none;
    box-shadow: 0 4px 15px rgba(79, 172, 254, 0.4);
}

.btn-danger {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    border: none;
    box-shadow: 0 4px 15px rgba(245, 87, 108, 0.4);
}

.alert {
    border-radius: 12px;
    border: none;
}

.badge {
    padding: 0.5em 0.75em;
    border-radius: 8px;
}

.stat-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    transition: transform 0.2s;
}

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

.stat-card h3 {
    color: #667eea;
    font-size: 2.5rem;
    font-weight: 700;
    margin: 0;
}

.stat-card p {
    color: #6c757d;
    margin: 0;
    font-weight: 500;
}

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