.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 20px;
}

.login-card {
    background: white;
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
    width: 100%;
    max-width: 420px;
    border: 1px solid rgba(255,255,255,0.2);
}

.login-card h2 {
    font-weight: 700;
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.login-card .form-control {
    border-radius: 10px;
    border: 1px solid #e0e0e0;
    padding: 0.75rem 1rem;
    font-size: 1rem;
}

.login-card .form-control:focus {
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
    border-color: #667eea;
}

.login-card .btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 10px;
    padding: 0.75rem 1.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.login-card .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.login-card .alert {
    border-radius: 10px;
    border: none;
}

.login-card .form-check-input:checked {
    background-color: #667eea;
    border-color: #667eea;
}

@media (max-width: 576px) {
    .login-card {
        padding: 2rem;
        margin: 1rem;
    }
}