body {
    background-color: #f5f6fa;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.navbar {
    margin-bottom: 30px;
}

.card {
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.08);
}

.card-header {
    font-weight: bold;
    background-color: #0d6efd;
    color: white;
}

.table {
    background-color: white;
}

.table th {
    background-color: #f1f3f6;
}

.btn {
    border-radius: 6px;
}

.container {
    max-width: 1000px;
}

.form-control, .form-select {
    border-radius: 6px;
}

.footer {
    text-align: center;
    color: #777;
    margin-top: 40px;
    font-size: 14px;
}