:root {
    --primary-color: #222222;
}

body {
    background-color: #f8f9fa;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
}

.login-card {
    width: 100%;
    max-width: 400px;
    border: none;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.login-header {
    background-color: var(--primary-color);
    padding: 30px;
    text-align: center;
    color: white;
}

.form-control:focus {
    box-shadow: none;
    border-color: #222222;
}

.form-check-input:focus {
    box-shadow: none;
    border-color: #222222;
}

.form-check-input:checked {
    background-color: #222222;
    border-color: #222222;
}

.btn {
    background-color: var(--primary-color);
    border: none;
    padding: 12px;
    font-weight: bold;
}

.btn:hover {
    background-color: #ffc901;
    color: #222222;
    transition: 0.3s;
}

.btn:focus {
    background-color: #ffc901;
    color: #222222;
    transition: 0.3s;
    box-shadow: none;
}