body {
    background-color: #2c2c2c;
}

.container {
    background-color: #1a1a1a !important;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
    padding: 3rem !important;
}

h1.h3 {
    color: #ffc107;
    font-weight: 300;
}

.input-group-text {
    background-color: #333;
    border: 1px solid #444;
    color: #fff;
}

.form-control {
    background-color: #222;
    border: 1px solid #444;
    color: #fff;
}

.form-control:focus {
    background-color: #222;
    border-color: #ffc107;
    color: #fff;
    box-shadow: 0 0 0 0.2rem rgba(255, 193, 7, 0.25);
}

.btn-purple {
    background-color: #ffc107;
    border-color: #ffc107;
    color: #1a1a1a;
    font-weight: bold;
    transition: background-color 0.3s ease;
}

.btn-purple:hover {
    background-color: #e0a800;
    border-color: #e0a800;
}

.form-signin a {
    color: #ffc107;
    transition: color 0.3s ease;
}

.form-signin a:hover {
    color: #e0a800;
    text-decoration: underline;
}

.alert {
    border-radius: 5px;
    font-size: 0.9rem;
}

.alert-danger {
    background-color: #dc3545;
    border-color: #dc3545;
    color: #fff;
}

.alert-success {
    background-color: #28a745;
    border-color: #28a745;
    color: #fff;
}

.alert-heading {
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding-bottom: 0.5rem;
}