body {
    background-color: #181a1b;
    color: #f1f3f4;
}

.card {
    background-color: #23272b;
    color: #f1f3f4;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.25);
    border: none;
    margin-bottom: 1.5rem;
}

.card-header {
    background-color: #23272b;
    border-bottom: 1px solid #343a40;
    color: #f1f3f4;
}

.navbar {
    background-color: #181a1b !important;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.navbar .navbar-brand, .navbar .nav-link {
    color: #f1f3f4 !important;
}

.form-control {
    background-color: #23272b;
    color: #f1f3f4;
    border: 1px solid #343a40;
}

.form-control:focus {
    border-color: #0d6efd;
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
    background-color: #23272b;
    color: #f1f3f4;
}

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

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

.table {
    color: #f1f3f4;
    background-color: #23272b;
}

.table th, .table thead th {
    background-color: #23272b;
    color: #f1f3f4;
    border-bottom: 2px solid #343a40;
}

.table-striped > tbody > tr:nth-of-type(odd) {
    background-color: #202225;
}

.table-striped > tbody > tr:nth-of-type(even) {
    background-color: #23272b;
}

.badge {
    font-weight: 500;
    padding: 0.5em 0.75em;
}

.alert-success {
    background-color: #22332a;
    color: #b6f7c1;
    border-color: #2e4d37;
}

.alert-danger {
    background-color: #3a2323;
    color: #f7b6b6;
    border-color: #4d2e2e;
}

@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    .card {
        margin-bottom: 1rem;
    }
    .table-responsive {
        margin-bottom: 0;
    }
}