:root {
    --main-bg: #f8f9fa;
    --primary: #4a90e2;
    --accent: #fdd835;
    --text-color: #333;
    --card-bg: #ffffff;
    --shadow: rgba(0, 0, 0, 0.1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Quicksand', sans-serif;
    background-color: var(--main-bg);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

header {
    background: linear-gradient(to right, var(--primary), #6bb4f3);
    color: white;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 {
    font-size: 1.8rem;
}

/* 하이퍼링크 CSS */
div[class="footer-header"] {
    color: gray;
}
a {
    text-decoration: none;
}
a[id="openTerms"] {
    text-decoration: none;
    color: gray;
}
a[id="openPrivate"] {
    text-decoration: none;
    color: gray;
}
.text-decoration {
    text-decoration: none;
    color: white;
}

/* 에러 출력 */
.fieldError {
    color: #bd2130;
}
.error {
    color: #bd2130;
}
/* 로그인 페이지 */
.lgin-container{
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}
.lgin-box1{
    width: 30vw;
    height: 75vh;
    border: 1px solid #ccc;
    border-radius: 10px;
    text-align: center;
    display: flex;
    justify-content: center;
    align-items: center;
}
.lgin-box2{
    width: 25vw;
    height: 65vh;
}
.lgin-mg-5{
    margin-bottom: 5vh;
}
.lgin-mg-2{
    margin-bottom: 2vh;
}
.lgin-ts-3{
    font-size: 3rem;
}
.input-box1{
    padding: 10px;
    font-size: 1rem;
    border: 1px solid #ccc;
    border-radius: 5px;
}
.lgin-btn {
    padding: 10px 12px;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: background-color 0.2s ease;
    background-color: #d0f0c0; /* 연한 초록 */
    color: #2d7032;
}
.lgin-btn:hover {
    background-color: #c0e8b0;
}


table {
    border-collapse: collapse;
}
tr, td {
    border: solid 1px black;
    text-align: center;
    font-size: 0.7em;
}

.menu-toggle {
    font-size: 1.8rem;
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    display: none;
    z-index: 1001;
}

nav {
    display: flex;
    gap: 20px;
}

/* nav + 버튼 감싸는 영역 스타일 */
.navbar-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

nav a {
    color: white;
    font-weight: 600;
    text-decoration: none;
}

/* 슬라이드 메뉴 (모바일용) */
.side-nav {
    position: fixed;
    top: 0;
    right: -250px;
    width: 250px;
    height: 100%;
    background-color: var(--primary);
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    transition: right 0.3s ease;
    z-index: 1000;
}

.side-nav a {
    color: white;
    font-weight: 600;
    text-decoration: none;
}

.side-nav.active {
    right: 0;
}

main {
    padding: 40px 20px;
    display: grid;
    gap: 30px;
    max-width: 1000px;
    margin: auto;
}

.board-section {
    margin-bottom: 40px;
    transition: transform 0.2s ease;
}

.board-section h2 {
    color: var(--primary);
    margin-top: 15px;
}

.post-list {
    border: 1px solid #ddd;
    border-radius: 10px;
    overflow: hidden;
    background-color: white;
    box-shadow: 0 4px 10px var(--shadow);
}

/* 게시글 hover 효과 (개별 적용) */
.post {
    display: flex;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px solid #eee;
    transition: transform 0.2s ease, background-color 0.2s ease;
    cursor: pointer;
}

.post:hover {
    transform: translateY(-3px);
    background-color: #f5faff;
}

.post:last-child {
    border-bottom: none;
}

.post-title {
    font-weight: 600;
}

.post-meta {
    font-size: 0.85rem;
    color: #777;
}

.header-actions {
    display: flex;
    gap: 10px;
    align-items: center;
}

.btn {
    padding: 6px 12px;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.btn-login {
    background-color: #d0f0c0; /* 연한 초록 */
    color: #2d7032;
}

.btn-login:hover {
    background-color: #c0e8b0;
}

.btn-signup {
    background-color: #fcdede; /* 연한 빨강 */
    color: #b00020;
}

.btn-signup:hover {
    background-color: #f9caca;
}

.btn-signup:disabled {
    background-color: #cccccc;
    cursor: not-allowed;
}

.btn-write {
    background-color: #e0ecff;
    color: #2f4f99;
    margin-top: 15px;
}

.btn-write:hover {
    background-color: #d0e0ff;
}

.btn-detail {
    background-color: #d0f0c0; /* 연한 초록 */
    color: #2d7032;
    margin-top: 15px;
}

/* a 태그로 된 버튼들도 버튼처럼 보이게 통일 */
a.btn-write, a.btn-detail {
    display: inline-block;
    padding: 6px 12px;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    font-family: inherit;
    background-color: #e0ecff; /* 기본 btn-write 색 */
    color: #2f4f99;
    margin-top: 15px;
    text-align: center;
    line-height: normal;
    font-size: 0.85em;
}

a.btn-write:hover {
    background-color: #d0e0ff;
}

a.btn-detail {
    background-color: #d0f0c0; /* 기본 btn-detail 색 */
    color: #2d7032;
}

a.btn-detail:hover {
    background-color: #c0e8b0;
}

.id-box {
    display: flex;
    gap: 10px;
}

.id-check-box {
    flex:1;
}

.id-check-comment {
    color:red;
    display:none;
}

.ps-check-comment {
    color:red;
    display:none;
}

.btn-detail:hover {
    background-color: #c0e8b0;
}

.btn-check {
    background-color: #d0f0c0;
    color: #2d7032;
}

.btn-check:hover {
    background-color: #c0e8b0;
}

/* 게시판 제목 + 자세히 보기 */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 10px;
    padding-bottom: 10px;
}
/* 게시판 글쓰기 + 자세히 보기 버튼 */
.section-header2 {
    display: flex;
    gap: 10px;
}


.footer {
    background-color: #e9ecef;
    text-align: center;
    padding: 20px;
    font-size: 0.9rem;
}
.footer-header {
    display: flex;
    flex-direction: column;
}
div > p {
    color: gray;
    font-weight: bold;
}

/* 모달창 */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.4);
}

.modal-content {
    background-color: #fff;
    margin: 10% auto;
    padding: 20px;
    border-radius: 8px;
    width: 90%;
    max-width: 400px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);

}

.modal-content2 {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.modal-content3 {
    max-height: 400px;
    overflow-y: auto;
}

.modal-content input {
    padding: 10px;
    font-size: 1rem;
    border: 1px solid #ccc;
    border-radius: 5px;
}

.close {
    color: #aaa;
    float: right;
    font-size: 24px;
    font-weight: bold;
    cursor: pointer;
}
.close:hover {
    color: black;
}

.font1 {
    color: black;
}
.modal-content3 ul {
    list-style-type: disc;
    padding-left: 20px;
}

.card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 4px 10px var(--shadow);
    transition: transform 0.2s ease;
}

.card:hover {
    transform: translateY(-5px);
}

.card h2 {
    margin-bottom: 10px;
    color: var(--primary);
}


/* PC환경 or Mobile 환경경 */
.pc-only {
    display: flex;
}

.mobile-only {
    display: none;
}

/* 반응형 처리 */
@media (max-width: 768px) {
    nav {
        display: none;
    }

    .pc-only {
        display: none !important;
    }

    .menu-toggle {
        display: block;
    }

    .mobile-only {
        display: flex;
        flex-direction: row;
        margin-bottom: 20px;
        margin-top: 8px;
        gap: 10px;
    }

    .id-check-comment {
        font-size: 0.8em;
    }

    .ps-check-comment {
        font-size: 0.8em;
    }

    a.btn-write {
        display: inline-block;
        padding: 6px 12px;
        border: none;
        border-radius: 6px;
        font-weight: 600;
        font-family: inherit;
        background-color: #e0ecff; /* 기본 btn-write 색 */
        color: #2f4f99;
        margin-top: 15px;
        text-align: center;
        line-height: normal;
        font-size: 0.7em;
    }
    a.btn-detail {
        display: inline-block;
        padding: 8px 12px 6px;
        border: none;
        border-radius: 6px;
        font-weight: 600;
        font-family: inherit;
        background-color: #d0f0c0; /* 기본 btn-detail 색 */
        color: #2d7032;
        margin-top: 15px;
        text-align: center;
        line-height: normal;
        font-size: 0.7em;
    }
    .lgin-box1{
        width: 80vw;
        height: 75vh;
        border: 1px solid #ccc;
        border-radius: 10px;
        text-align: center;
        display: flex;
        justify-content: center;
        align-items: center;
    }
    .lgin-box2{
        width: 70vw;
        height: 65vh;
    }
}

@media (min-width: 769px) {
    .side-nav {
        display: none;
    }
}