/* =================================================================
   기본 설정
   ================================================================= */
*,
*::before,
*::after {
    box-sizing: border-box;
}

:root {
    --bg: #ffffff;
    --fg: #0f172a;
    --muted: #475569;
    --line: #e5e7eb;
    --accent: #2563eb;
    --accent-fg: #ffffff;
    --radius: 12px;
    --shadow: 0 1px 2px rgba(0,0,0,.04), 0 3px 6px rgba(0,0,0,.06);

    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 24px;
    --space-6: 32px;

    --maxw: 1100px;
    --sidebar-w: 260px;
    --main-header-h: 64px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0b0e14;
        --fg: #e6edf3;
        --muted: #9aa7b2;
        --line: #1f2937;
        --accent: #3b82f6;
        --accent-fg: #0b0e14;
    }
}

@media (prefers-color-scheme: dark) {
    :root {

        --bg: #0b0e14;
        --fg: #e6edf3;
        --muted: #9aa7b2;
        --line: #1f2937;
        --accent: #3b82f6;
        --accent-fg: #0b0e14;

        --bg-color: #1a1a1a;
        --text-color: #e0e0e0;
        --border-color: #444;
        --header-bg: #2d2d2d;
        --btn-bg: #2d2d2d;
        --btn-hover-bg: #404040;
        --btn-active-bg: #0d6efd;
        --btn-active-text: white;
        --btn-disabled-bg: #1a1a1a;
        --btn-disabled-text: #666;
        --btn-disabled-border: #333;
    }
}
/* =================================================================
   기본 레이아웃
   ================================================================= */
html {
    height: 100%;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--fg);
    font: 15px/1.6 system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, Apple Color Emoji, Segoe UI Emoji;
    display: grid;
    grid-template-rows: auto 1fr auto;
    min-height: 100dvh;
}

/* =================================================================
   헤더
   ================================================================= */
.main-header {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    padding-block: var(--space-3);
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    backdrop-filter: saturate(180%) blur(6px);
}

.title-logo {
    font-weight: 700;
    font-size: 25px;
    letter-spacing: .2px;
    text-decoration: none;
    color: inherit;
}

.title-logo:hover,
.title-logo:active,
.title-logo:visited {
    text-decoration: none;
}

.title-logo:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.util {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.searchInput {
    min-width: 220px;
    padding: 10px 12px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: transparent;
    color: var(--fg);
    outline: none;
    transition: border-color .15s ease, box-shadow .15s ease;
}

.searchInput::placeholder {
    color: color-mix(in srgb, var(--muted) 80%, transparent);
}

.searchInput:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent);
}

.login-logout {
    display: inline-flex;
    gap: var(--space-2);
}

.login-logout a {
    text-decoration: none;
    padding: 8px 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    transition: background .15s ease, border-color .15s ease;
    color: inherit;
}

.login-logout a:hover {
    border-color: var(--fg);
    background: color-mix(in srgb, var(--fg) 6%, transparent);
}

/* =================================================================
   네비게이션 (사이드바)
   ================================================================= */
nav {
    background: transparent;
}

nav,
nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

nav ul li {
    margin: 2px 0;
}

nav a {
    display: block;
    padding: 8px 10px;
    border-radius: 8px;
    text-decoration: none;
    color: inherit;
    transition: background .15s ease, color .15s ease;
}

nav a:hover {
    background: color-mix(in srgb, var(--fg) 6%, transparent);
}

nav h3 {
    margin: var(--space-4) 0 var(--space-2);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--muted);
}

/* =================================================================
   반응형 레이아웃
   ================================================================= */

/* 모바일/태블릿 (960px 이하) */
@media (max-width: 959.98px) {
    body {
        grid-template-rows: auto auto 1fr auto;
        grid-template-areas:
            "header"
            "sidebar"
            "main"
            "footer";
    }

    .main-header {
        grid-area: header;
        justify-content: space-between;
    }

    nav {
        grid-area: sidebar;
        border-bottom: 1px solid var(--line);
        padding: var(--space-3) var(--space-4);
        background: var(--bg);
    }

    /* 메뉴 섹션들을 가로로 배치 */
    .nav-sections {
        display: flex;
        gap: var(--space-3);

        padding-bottom: var(--space-2);
    }

    .nav-section {
        flex-shrink: 0;
        min-width: 150px;
        position: relative;
    }

    /* 드롭다운 스타일 */
    .nav-section h3 {
        cursor: pointer;
        margin: 0 0 var(--space-2) 0;
        padding: var(--space-2) var(--space-3);
        border: 1px solid var(--line);
        border-radius: var(--radius);
        background: var(--bg);
        position: relative;
        user-select: none;
        text-align: center;
        white-space: nowrap;
    }

    .nav-section h3::after {
        content: "▼";
        position: absolute;
        right: var(--space-2);
        top: 50%;
        transform: translateY(-50%);
        transition: transform 0.2s ease;
        font-size: 0.8em;
    }

    .nav-section h3.active::after {
        transform: translateY(-50%) rotate(180deg);
    }

    .nav-section h3:hover {
        background: color-mix(in srgb, var(--fg) 6%, transparent);
    }

    .nav-section ul {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        z-index: 10;
        margin-top: var(--space-1);
        padding: 0;
        border: 1px solid var(--line);
        border-radius: var(--radius);
        background: var(--bg);
        box-shadow: var(--shadow);
    }

    .nav-section ul.active {
        display: block;
    }

    .nav-section ul li {
        margin: 0;
        border-bottom: 1px solid var(--line);
    }

    .nav-section ul li:last-child {
        border-bottom: none;
    }

    .nav-section a {
        padding: var(--space-2) var(--space-3);
        border-radius: 0;
        display: block;
        white-space: nowrap;
    }

    .nav-section ul li:first-child a {
        border-top-left-radius: var(--radius);
        border-top-right-radius: var(--radius);
    }

    .nav-section ul li:last-child a {
        border-bottom-left-radius: var(--radius);
        border-bottom-right-radius: var(--radius);
    }

    main {
        grid-area: main;
    }

    footer {
        grid-area: footer;
    }
}

/* 데스크톱 (960px 이상) */
@media (min-width: 960px) {
    body {
        grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
        column-gap: var(--space-5);

        grid-template-rows: auto minmax(0, 1fr) auto;

        grid-template-areas:
            "header header"
            "sidebar main"
            "footer footer";
    }

    .main-header {
        grid-area: header;
        height: var(--main-header-h);
        justify-content: flex-start;
        padding-left: var(--space-4);
    }

    .title-logo {
        margin-left: var(--sidebar-w);
        flex-grow: 1;
    }

    .util {
        margin-left: auto;
    }

    nav {
        grid-area: sidebar;
        position: sticky;
        top: var(--main-header-h);
        align-self: start;
        height: max-content;
        padding: var(--space-5) var(--space-4);
    }

    main {
        grid-area: main;
    }

    footer {
        grid-area: footer;
    }
}

/* =================================================================
   푸터
   ================================================================= */
footer {
    border-top: 1px solid var(--line);
    background: var(--bg);
}

footer .inner-footer {
    padding-block: var(--space-4);
    text-align: center;
    color: var(--muted);
}

/* =================================================================
   공통 요소
   ================================================================= */
a {
    color: inherit;
    text-decoration: none;
}

a:hover {
    text-decoration: none;
}

.container {
    width: 100%;
    max-width: var(--maxw);
    margin-inline: auto;
}

.muted {
    color: var(--muted);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    border-radius: var(--radius);
    border: 1px solid var(--line);
    text-decoration: none;
    color: inherit;
    transition: background .15s ease, border-color .15s ease, transform .02s ease;
}

.btn:hover {
    background: color-mix(in srgb, var(--fg) 6%, transparent);
}

.btn:active {
    transform: translateY(1px);
}

.btn.primary {
    border-color: transparent;
    background: var(--accent);
    color: var(--accent-fg);
}

.btn.primary:hover {
    filter: brightness(1.05);
}

.line-bottom {
    height: 1px;
    background: var(--line);
}

.display-none {
    display: none;
}

/* =================================================================
   게시글 관련
   ================================================================= */
.main-page-title {
    font-size: 40px;
}

.post-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 20px;
}

.post-actions-left-buttons {
    display: flex;
    gap: 10px;
}

.create-post-button {
    text-align: right;
    margin-bottom: 1rem;
}

#post-content {
    min-height: 300px;
    word-wrap: break-word;
    overflow-wrap: break-word;
    word-break: break-word;
    max-width: 100%;

}


/* =================================================================
   테이블
   ================================================================= */
.post-list-table {
    width: 100%;
    border-collapse: collapse;
    table-layout: fixed;
}

.post-list-header th,
.post-list td {
    padding: 8px;
    border-bottom: 1px solid #ccc;
    vertical-align: middle;
    overflow: hidden;
    text-overflow: ellipsis;
}

.post-list-header th {
    background: var(--header-bg);
    text-align: center;
    white-space: nowrap;
}

.post-list tr {
    border-bottom: 1px solid #e0e0e0;
    transition: background-color 0.2s;
}

.post-list tr:hover {
    background-color: #f5f5f5;
}

.post-list tr:has(td[colspan]):hover {
    background-color: transparent;
}

/* 각 컬럼별 너비 지정 */
.post-list-id {
    width: 8%;
    text-align: center;
}

.post-list-title {
    width: 59%;
}

.post-list-nickname {
    width: 10%;
    text-align: center;
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;


}

.post-list-viewcount {
    width: 8%;
    text-align: center;
}

.post-list-createdAt {
    width: 15%;
    text-align: center;
}

/* 헤더에도 동일한 너비 적용 */
.post-list-header th:nth-child(1) { width: 8%; }   /* ID */
.post-list-header th:nth-child(2) { width: 59%; }  /* 제목 */
.post-list-header th:nth-child(3) { width: 10%; }  /* 작성자 */
.post-list-header th:nth-child(4) { width: 8%; }  /* 조회수 */
.post-list-header th:nth-child(5) { width: 15%; }  /* 작성일 */

/* =================================================================
   페이지네이션
   ================================================================= */
.pagination-wrapper {
/*    margin: 20px 0;
    padding: 20px 0;*/
    margin-top: 20px;
    text-align: center;



}

.pagination {
/*    display: flex;
    gap: 5px;
    justify-content: center;
    margin-bottom: 10px;*/

    display: inline-block;
    margin-bottom: 10px;

}

.pagination-btn {
    /*
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    text-decoration: none;
    color: #333;
    background: #fff;
    transition: all 0.2s;
    */

    display: inline-block;
    padding: 8px 12px;
    margin: 0 2px;
    text-decoration: none;
    border: 1px solid #ddd;
    color: #333;
    background-color: white;
    border-radius: 3px;

}

.pagination-btn:hover {
 /*   background: #f0f0f0;
    border-color: #999;*/

    background-color: #f5f5f5;

}

.pagination-btn.active {
/*    background: #007bff;
    border-color: #007bff;
    color: white;*/

    background-color: #007bff;
    color: white;
    border-color: #007bff;

}

.pagination-btn.disabled {
/*    background-color: #f5f5f5;
    color: #999;
    cursor: not-allowed;
    border-color: #ddd;
    pointer-events: none;*/

    color: #ccc;
    cursor: not-allowed;
    background-color: #f9f9f9;

}

.page-info {
    text-align: right;
    font-size: 0.9em;
    color: #666;
}

@media (max-width: 768px) {
    .pagination-wrapper {
        flex-direction: column;
        gap: 10px;
    }
}

.portfolio-content{
    word-wrap: break-word;
    overflow-wrap: break-word;
    word-break: break-word;
}

.logout-btn {
    background-color: #ffffff;
    font: 15px/1.6 system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, Apple Color Emoji, Segoe UI Emoji;
    text-decoration: none;
    padding: 8px 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    transition: background .15s ease, border-color .15s ease;
    color: inherit;
}

.logout-btn:hover {
    border-color: var(--fg);
    background: color-mix(in srgb, var(--fg) 6%, transparent);
}

.user-info{
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.toc-container {
    background-color: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 20px;
    margin: 20px 0;
    max-width: 100%;
}

.toc-title {
    margin: 0 0 15px 0;
    color: #495057;
    font-size: 1.2em;
    border-bottom: 2px solid #dee2e6;
    padding-bottom: 8px;
}

.toc-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.toc-list .toc-list {
    padding-left: 20px;
    margin-top: 5px;
}

.toc-list li {
    margin: 5px 0;
}

.toc-list a {
    text-decoration: none;
    color: #495057;
    padding: 5px 8px;
    display: block;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.toc-list a:hover {
    background-color: #e9ecef;
    color: #007bff;
}

/* 제목 레벨별 스타일 */
.toc-level-h1 {
    font-weight: bold;
    font-size: 1.1em;
}
.toc-level-h2 {
    font-weight: 600;
}
.toc-level-h3 {
    font-weight: 500;
}
.toc-level-h4 {
    font-weight: 400;
    font-size: 0.95em;
}
.toc-level-h5 {
    font-weight: 400;
    font-size: 0.9em;
}
.toc-level-h6 {
    font-weight: 400;
    font-size: 0.85em;
}

/* 반응형 디자인 */
@media (max-width: 768px) {
    .toc-container {
        margin: 15px 0;
        padding: 15px;
    }

    .toc-list .toc-list {
        padding-left: 15px;
    }
}