body {
    background-color: #f8f9fa;
    font-family: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, system-ui, Roboto, "Helvetica Neue", "Segoe UI", "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", sans-serif;
}

.login-container {
    max-width: 400px;
    margin: 100px auto;
}

.card {
    border: none;
    border-radius: 15px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
}

.card-header {
    background-color: #fff;
    border-bottom: none;
    padding: 20px;
    text-align: center;
}

.form-control {
    border-radius: 10px;
    padding: 12px;
}

.btn-login {
    border-radius: 10px;
    padding: 12px;
    background-color: #0d6efd;
    border: none;
}

.btn-login:hover {
    background-color: #0b5ed7;
}

.qr-code-container {
    text-align: center;
    margin: 20px 0;
}

.qr-code-placeholder {
    width: 200px;
    height: 200px;
    background-color: #f8f9fa;
    margin: 0 auto;
    border: 1px dashed #dee2e6;
    display: flex;
    align-items: center;
    justify-content: center;
}