.progress-container {
    width: 100%;
    background-color: #e0e0e0;
    position: relative;
    margin-bottom: 1rem;
    border-radius: 10px;
    overflow: hidden;
    display: none;
    /* 단계별 진행 기능 제거로 인해 숨김 */
}

.progress-bar {
    width: 0%;
    height: 20px;
    background: linear-gradient(45deg, #007bff, #00d4ff);
    transition: width 0.4s ease;
}

.progress-percentage {
    position: absolute;
    width: 100%;
    text-align: center;
    top: 0;
    color: #fff;
    font-weight: bold;
    line-height: 20px;
}

.form-group {
    display: block;
    /* 모든 입력 필드를 한 번에 표시 */
}

.tab-info {
    font-size: 0.9em;
    color: #777;
}

.navigation-buttons {
    display: none;
    /* 단계별 진행 기능 제거로 인해 숨김 */
    margin-top: 1rem;
    text-align: center;
}

.business-number-group,.phone-number-group {
    display: flex;
    justify-content: space-between;
}

.business-number-group input,.phone-number-group input {
    width: 30%;
    text-align: center;
}


.username-feedback,
.password-feedback {
    font-size: 0.9em;
    color: #777;
    margin-top: 0.5rem;
}

.username-feedback.valid,
.password-feedback.valid {
    color: green;
}

.username-feedback.invalid,
.password-feedback.invalid {
    color: red;
}