/* ===============================
   기본 스타일 및 공통 레이아웃
   =============================== */
body, html {
    background-color: #f5f5f8;
}

.member-container {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: flex-start; /* 로그인/회원가입 폼을 상단에 정렬 */
    padding: 5vh 20px;
    box-sizing: border-box;
}

.form-wrapper {
    width: 100%;
    max-width: 440px; /* 회원가입 폼 기준 넓은 너비로 통일 */
    background-color: #ffffff;
    padding: 50px;
    box-sizing: border-box;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

/* 모바일 반응형 스타일 */
@media (max-width: 767px) {
    body, html{
        background-color: #fff;
        align-items: flex-start; /* 모바일에서는 상단에 붙임 */
    }
    .member-container .form-wrapper {
        padding: 20px !important;
        box-shadow: none;
    }
}

/* ===============================
   로고, 제목
   =============================== */
.logo {
    text-align: left;
}

.logo a img {
    width: 150px;
    height: auto;
}

h1, h2 { /* 회원가입 h1, 로그인 h2 */
    font-size: 26px;
    font-weight: 700;
    color: #212529;
    margin: 0 0 40px 0;
    line-height: 1.5;
}

/* ===============================
   입력 필드 (form-input)
   =============================== */
.input-group {
    margin-top: 10px;
    margin-bottom: 5px;
    position: relative;
}

.form-input {
    width: 100%;
    padding: 12px 0;
    border: none;
    border-bottom: 1px solid #ced4da;
    font-size: 18px;
    font-weight: 600;
    outline: none;
    transition: all 0.2s;
    box-sizing: border-box;
    background-color: transparent;
    letter-spacing: -.044rem;
}

.form-input::placeholder {
    color: #757575;
}

.form-input:focus {
    border-bottom: 2px solid #343a40;
}

.form-input:focus::placeholder {
    color: transparent;
}

/* ===============================
   버튼 (submit-btn, check-btn, social-btn)
   =============================== */
.submit-btn {
    width: 100%;
    padding: 14px;
    font-size: 18px;
    font-weight: 700;
    color: #ffffff;
    background-color: #212529;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.2s;
    margin-top: 20px;
}

.submit-btn:hover {
    background-color: #7416e6;
}

/* 아이디 중복확인 버튼 */
.input-with-button {
    display: flex;
    align-items: center;
    gap: 10px;
}

.check-btn {
    padding: 10px 15px;
    font-size: 14px;
    font-weight: 500;
    color: #ffffff;
    background-color: #212529;
    border-radius: 5px;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s;
}

.login_title {
    margin-bottom: 50px;
}
/* 소셜 로그인 버튼 */
.social-logins {
    display: flex;
    justify-content: space-between;
    gap: 15px;
    margin-top: 30px;
}

.social-btn {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px;
    border-radius: 8px;
    border: 1px solid #dee2e6;
    background-color: #ffffff;
    cursor: pointer;
    font-size: 15px;
    font-weight: 500;
    transition: background-color 0.2s;
}

.social-btn svg {
    width: 20px;
    height: 20px;
    margin-right: 10px;
}

.google-btn:hover {
    background-color: #f8f9fa;
}

.kakao-btn {
    background-color: #FEE500;
    border-color: #FEE500;
}

.kakao-btn:hover {
    background-color: #F2D800;
}

/* ===============================
   유효성 검사 및 상태 메시지
   =============================== */
.help-text {
    height: 18px; /* 메시지 표시 영역 확보 */
    font-size: 14px;
    color: #868e96;
    margin-top: 5px;
    display: flex;
    align-items: center;
    letter-spacing: -.044rem;
}

.help-icon {
    display: inline-block;
    width: 16px;
    height: 16px;
    line-height: 16px;
    text-align: center;
    background-color: #e9ecef;
    color: #868e96;
    border-radius: 50%;
    font-size: 12px;
    font-weight: bold;
    margin-left: 5px;
    cursor: pointer;
}

/* 에러 메시지 스타일 (공통) */
.error {
    color: red;
    font-size: 14px;
    display: block;
   padding: 10px 0;
}

/* 유효성 통과 스타일 */
.form-input.success {
    border-bottom-color: #28a745;
    background-color: #f0fff4;
}

.check-btn.success {
    background-color: #28a745;
    color: #ffffff;
    border-color: #28a745;
}

/* ===============================
   구분선 및 하단 링크
   =============================== */
.divider {
    display: flex;
    align-items: center;
    text-align: center;
    color: #adb5bd;
    margin: 40px 0;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid #dee2e6;
}

.divider span {
    padding: 0 15px;
    font-size: 13px;
    text-transform: uppercase;
    font-weight: 500;
}

.login-link {
    margin-top: 50px;
    text-align: center;
    font-size: 15px;
    color: #495057;
}

.login-link a {
    color: #212529;
    font-weight: 500;
    text-decoration: none;
    transition: text-decoration 0.2s;
}

.login-link a:hover {
    text-decoration: underline;
}