/* =================================================================
   LemonDouble Design System - Blog Theme
   Dark mode only · Warm dark background · Border-based depth
   Galmuri11 Bold (headings) + Pretendard (everything else)
   ================================================================= */

/* --- CSS Variables --- */
:root {
    /* Brand */
    --primary: #F0B90B;
    --primary-hover: #D4A30A;
    --secondary: #CD6B5E;

    /* Background & Surface */
    --bg: #12100E;
    --surface: #1C1816;
    --surface-hover: #231E1B;

    /* Border */
    --border: #2E2723;
    --border-hover: #3D3530;

    /* Text */
    --text-primary: #F5F0EB;
    --text-secondary: #A89E95;
    --text-muted: #5C524A;

    /* Accent Dim */
    --primary-dim: rgba(240, 185, 11, 0.12);
    --primary-dim-border: rgba(240, 185, 11, 0.25);
    --secondary-dim: rgba(205, 107, 94, 0.12);
    --secondary-dim-border: rgba(205, 107, 94, 0.25);

    /* Semantic */
    --success: #4ADE80;
    --warning: #FACC15;
    --error: #EF4444;

    /* Fonts */
    --font-heading: 'Galmuri11', monospace;
    --font-body: 'Pretendard', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* --- Reset & Base --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 16px;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* --- Links --- */
a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--primary-hover);
}

/* --- Container --- */
.container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 32px;
}

/* =========================
   NAVIGATION
   ========================= */
.site-nav {
    position: sticky;
    top: 0;
    z-index: 1100;
    height: 56px;
    background: rgba(18, 16, 14, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.nav-inner {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 32px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    flex-shrink: 0;
}

.nav-logo img {
    width: 32px;
    height: 32px;
    border-radius: 8px;
}

.nav-logo span {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 16px;
    color: var(--primary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-link {
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 6px 14px;
    border-radius: 6px;
    transition: all 0.2s;
}

.nav-link:hover {
    color: var(--text-primary);
    background: var(--surface-hover);
}

.nav-link.active {
    color: var(--primary);
    background: var(--primary-dim);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Mobile menu button */
.nav-menu-btn {
    display: none;
    background: none;
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-secondary);
    padding: 6px;
    cursor: pointer;
    transition: all 0.2s;
}

.nav-menu-btn:hover {
    color: var(--text-primary);
    border-color: var(--border-hover);
}

/* Mobile menu overlay */
.mobile-menu {
    display: none;
    position: fixed;
    top: 56px;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(18, 16, 14, 0.95);
    backdrop-filter: blur(12px);
    z-index: 999;
    padding: 24px 32px;
}

.mobile-menu.active {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.mobile-menu .nav-link {
    font-size: 16px;
    padding: 12px 16px;
    border-radius: 8px;
}

/* =========================
   SEARCH
   ========================= */
.search-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0 12px;
    height: 36px;
    transition: border-color 0.2s;
}

.search-close-btn {
    display: none;
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    align-items: center;
    justify-content: center;
    transition: color 0.2s;
}

.search-close-btn:hover {
    color: var(--text-primary);
}

.mobile-search-btn {
    display: none;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    width: 36px;
    height: 36px;
    border-radius: 8px;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    transition: color 0.2s, border-color 0.2s;
}

.mobile-search-btn:hover {
    color: var(--primary);
    border-color: var(--primary-dim-border);
}

.search-wrapper:focus-within {
    border-color: var(--primary-dim-border);
}

.search-wrapper .search-icon {
    color: var(--text-muted);
    flex-shrink: 0;
    display: flex;
    align-items: center;
}

.search-input {
    font-family: var(--font-body);
    font-size: 14px;
    padding: 0;
    background: transparent;
    border: none;
    color: var(--text-primary);
    outline: none;
    width: 160px;
}

.search-input::placeholder {
    color: var(--text-muted);
}

.search-results {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: 400px;
    max-height: 480px;
    overflow-y: auto;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    z-index: 10000;
    padding: 4px;
}

.search-results.active {
    display: block;
}

.search-result-item {
    display: block;
    padding: 12px 16px;
    border-radius: 8px;
    color: var(--text-primary);
    text-decoration: none;
    transition: background 0.15s;
}

.search-result-item:hover {
    background: var(--surface-hover);
    color: var(--text-primary);
}

.search-result-title {
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.search-result-meta {
    font-size: 12px;
    color: var(--text-muted);
}

.search-cat {
    font-family: var(--font-body);
    font-size: 12px;
    font-weight: 600;
    color: var(--secondary);
}

.search-cat-sep {
    display: inline-block;
    margin: 0 6px;
    color: var(--text-muted);
    font-weight: 400;
}

.search-empty {
    padding: 24px 16px;
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
}

/* =========================
   HOME LAYOUT
   ========================= */
.home-layout {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 24px;
    grid-template-areas:
        "hero hero"
        "posts sidebar";
}

.home-hero { grid-area: hero; }
.posts-section { grid-area: posts; }
.sidebar { grid-area: sidebar; }

/* --- Hero --- */
.home-hero {
    display: flex;
    align-items: center;
    gap: 48px;
    padding: 64px 0 48px;
}

.hero-content {
    flex: 1;
    min-width: 0;
}

.hero-label {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 12px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--primary);
    margin-bottom: 16px;
}

.hero-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 44px;
    line-height: 1.2;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.hero-title .accent {
    color: var(--primary);
}

.hero-desc {
    font-family: var(--font-body);
    font-size: 18px;
    font-weight: 400;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.hero-stats {
    display: flex;
    gap: 24px;
}

.hero-stat {
    display: flex;
    align-items: center;
    gap: 8px;
}

.hero-stat-number {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 24px;
    color: var(--primary);
}

.hero-stat-label {
    font-family: var(--font-body);
    font-size: 14px;
    color: var(--text-muted);
}

.hero-image {
    flex-shrink: 0;
}

.hero-image img {
    width: 160px;
    height: 160px;
    border-radius: 50%;
    border: 3px solid var(--primary-dim-border);
    object-fit: cover;
}

/* --- Section Header --- */
.section-label {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 12px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--secondary);
    margin-bottom: 8px;
}

.section-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 28px;
    line-height: 1.3;
    color: var(--text-primary);
    margin-bottom: 24px;
}

/* =========================
   POST CARDS
   ========================= */
.post-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.post-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    transition: border-color 0.2s;
}

.post-card:hover {
    border-color: var(--primary-dim-border);
}

.post-card-inner {
    display: flex;
    flex-direction: column;
}

.post-thumbnail {
    width: 100%;
    overflow: hidden;
}

.post-thumbnail img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.3s;
}

.post-card:hover .post-thumbnail img {
    transform: scale(1.02);
}

.post-info {
    padding: 20px 24px 24px;
}

.post-categories {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 10px;
}

.category-tag {
    font-family: var(--font-body);
    font-size: 12px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 9999px;
    background: var(--secondary-dim);
    color: var(--secondary);
    transition: all 0.2s;
}

.category-tag:hover {
    background: var(--secondary);
    color: var(--bg);
}

.post-card .post-title {
    font-family: var(--font-body);
    font-size: 17px;
    font-weight: 700;
    line-height: 1.5;
    margin-bottom: 8px;
}

.post-card .post-title a {
    color: var(--text-primary);
    transition: color 0.2s;
}

.post-card .post-title a:hover {
    color: var(--primary);
}

.post-meta {
    font-family: var(--font-body);
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.meta-sep {
    margin: 0 6px;
    color: var(--border);
}

.post-excerpt {
    font-family: var(--font-body);
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* =========================
   SIDEBAR
   ========================= */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.sidebar-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
}

.sidebar-card .card-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 16px;
    color: var(--text-primary);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.category-list {
    list-style: none;
}

.category-list li {
    border-bottom: 1px solid var(--border);
}

.category-list li:last-child {
    border-bottom: none;
}

.category-list a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 4px;
    color: var(--text-secondary);
    font-size: 14px;
    transition: all 0.2s;
}

.category-list a:hover {
    color: var(--primary);
    padding-left: 8px;
}

.cat-count {
    font-family: var(--font-body);
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    background: var(--primary-dim);
    padding: 2px 8px;
    border-radius: 9999px;
}

/* =========================
   PAGINATION
   ========================= */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    margin-top: 40px;
    padding: 16px 8px;
    flex-wrap: wrap;
}

.pagination-item {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 8px;
    border-radius: 8px;
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    background: transparent;
    border: 1px solid transparent;
    text-decoration: none;
    transition: all 0.15s;
}

.pagination-item:hover {
    background: var(--surface);
    border-color: var(--border);
    color: var(--text-primary);
}

.pagination-item.disabled {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
}

.pagination-ellipsis {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    color: var(--text-muted);
    font-size: 14px;
}

.page-jump-wrap {
    position: relative;
    display: inline-flex;
}

.page-jump-input {
    min-width: 36px;
    width: 44px;
    height: 36px;
    background: var(--primary);
    border: 2px solid var(--primary);
    border-radius: 8px;
    color: var(--bg);
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 600;
    text-align: center;
    outline: none;
    cursor: text;
    padding: 0;
    -moz-appearance: textfield;
}

.page-jump-input::-webkit-outer-spin-button,
.page-jump-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.page-jump-input:focus {
    background: var(--surface);
    color: var(--primary);
    border-color: var(--primary-dim-border);
}

.page-jump-icon {
    position: absolute;
    top: -5px;
    right: -5px;
    width: 16px;
    height: 16px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 9px;
    color: var(--text-secondary);
    pointer-events: none;
}

/* =========================
   SINGLE POST
   ========================= */
.post-layout {
    max-width: 800px;
    margin: 0 auto;
    padding-top: 32px;
}

.post-layout.has-toc {
    max-width: 1100px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 200px;
    gap: 24px;
    align-items: start;
}

.post-single {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* --- Post Header --- */
.post-header {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
}

.post-cover {
    width: 100%;
    overflow: hidden;
}

.post-cover img {
    width: 100%;
    height: auto;
    display: block;
}

.post-header-content {
    padding: 24px;
}

.post-single .post-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 28px;
    line-height: 1.4;
    color: var(--text-primary);
    margin: 12px 0;
}

/* --- TOC Sidebar (VitePress style) --- */
.toc-sidebar {
    position: sticky;
    top: 72px;
    max-height: calc(100vh - 88px);
    overflow-y: auto;
    padding-top: 32px;
    scrollbar-width: none;
}

.toc-sidebar::-webkit-scrollbar {
    display: none;
}

.toc-back-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-body);
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 20px;
    transition: color 0.2s;
}

.toc-back-btn:hover {
    color: var(--primary);
}

.toc-back-btn svg {
    flex-shrink: 0;
    transition: transform 0.2s;
}

.toc-back-btn:hover svg {
    transform: translateX(-3px);
}

.toc-sidebar-nav {
    border-left: 1px solid var(--border);
    padding-left: 16px;
}

.toc-sidebar-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 13px;
    color: var(--text-primary);
    margin: 0 0 12px 0;
    letter-spacing: 0.02em;
}

.toc-sidebar-nav ul {
    list-style: none;
    padding-left: 0;
    margin: 0;
}

.toc-sidebar-nav ul ul {
    padding-left: 12px;
}

.toc-sidebar-nav li {
    margin: 0;
}

.toc-sidebar-nav a {
    font-family: var(--font-body);
    font-size: 13px;
    line-height: 1.4;
    color: var(--text-muted);
    display: block;
    padding: 4px 0;
    border-left: 2px solid transparent;
    margin-left: -17px;
    padding-left: 15px;
    transition: color 0.2s, border-color 0.2s;
}

.toc-sidebar-nav a:hover {
    color: var(--text-primary);
}

.toc-sidebar-nav a.active {
    color: var(--primary);
    border-left-color: var(--primary);
}

/* --- Post Content --- */
.post-content {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 40px;
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-secondary);
    word-break: keep-all;
}

.post-content h1,
.post-content h2,
.post-content h3,
.post-content h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--text-primary);
    margin-top: 2em;
    margin-bottom: 0.8em;
}

.post-content h1 { font-size: 28px; line-height: 1.3; }
.post-content h2 {
    font-size: 22px;
    line-height: 1.4;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
}
.post-content h3 { font-size: 18px; line-height: 1.4; }
.post-content h4 { font-size: 16px; line-height: 1.4; }

.post-content p {
    margin-bottom: 1.3em;
}

.post-content a {
    color: var(--primary);
    text-decoration: underline;
    text-decoration-style: solid;
    text-underline-offset: 3px;
    text-decoration-thickness: 1px;
}

.post-content a:hover {
    color: var(--primary-hover);
}

.post-content img {
    max-width: 100%;
    height: auto;
    border: 1px solid var(--border);
    border-radius: 12px;
    margin: 1.5em auto;
    display: block;
}

.post-content blockquote {
    border-left: 3px solid var(--primary);
    background: var(--primary-dim);
    padding: 12px 20px;
    margin: 1.5em 0;
    border-radius: 0 8px 8px 0;
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.7;
}

.post-content blockquote p:last-child {
    margin-bottom: 0;
}

.post-content code {
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 600;
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--secondary);
    padding: 2px 8px;
    border-radius: 4px;
}

.post-content pre {
    padding: 16px;
    overflow-x: auto;
    margin: 1.5em 0;
}

.post-content .code-block pre {
    margin: 0;
    background: none;
    border: none;
}

.post-content pre code {
    background: none;
    border: none;
    padding: 0;
    font-size: 14px;
    font-weight: 400;
    line-height: 1.8;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
}

.post-content ul,
.post-content ol {
    margin: 1em 0;
    padding-left: 24px;
    list-style-position: outside;
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-secondary);
}

.post-content li {
    margin: 0.4em 0;
}

.post-content li::marker {
    color: var(--primary);
}

.post-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5em 0;
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
}

.post-content th,
.post-content td {
    padding: 12px 16px;
    border: 1px solid var(--border);
    text-align: left;
    font-size: 14px;
}

.post-content th {
    background: var(--surface);
    font-weight: 600;
    color: var(--text-secondary);
}

.post-content td {
    color: var(--text-primary);
}

.post-content hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 2em 0;
}

/* --- Post Tags --- */
.post-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag-link {
    font-family: var(--font-body);
    font-size: 12px;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 9999px;
    background: var(--primary-dim);
    color: var(--primary);
    transition: all 0.2s;
}

.tag-link:hover {
    background: var(--primary);
    color: var(--bg);
}

/* --- License --- */
.post-license {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px 24px;
    font-size: 13px;
    color: var(--text-muted);
    text-align: center;
}

/* --- Comments --- */
.post-comments {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
}

.post-comments .comments-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 20px;
    color: var(--text-primary);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

/* =========================
   LIST PAGE
   ========================= */
.list-page {
    max-width: 800px;
    margin: 0 auto;
    padding-top: 32px;
}

.page-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 28px;
    line-height: 1.3;
    color: var(--text-primary);
    margin-bottom: 32px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}

.page-content {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
}

/* =========================
   PROJECTS PAGE
   ========================= */
.projects-page {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 24px;
    padding-top: 32px;
}

.projects-header {
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}

.projects-header .page-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 28px;
    color: var(--text-primary);
    margin: 0;
    border: none;
    padding: 0;
}

.projects-page .post-content {
    padding: 32px;
}

.projects-page .post-content h2 {
    font-size: 22px;
    margin-top: 2.5em;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.projects-page .post-content h2:first-child {
    margin-top: 0;
}

.projects-page .post-content h3 {
    font-size: 18px;
    margin-top: 2em;
    margin-bottom: 0.5em;
}

.projects-page .post-content h3 code {
    font-family: var(--font-body);
    font-size: 12px;
    font-weight: 600;
    background: var(--secondary);
    color: var(--text-primary);
    border: none;
    padding: 2px 10px;
    border-radius: 9999px;
    margin-left: 8px;
    vertical-align: middle;
}

.projects-page .post-content blockquote {
    border-left: 3px solid var(--secondary);
    background: var(--secondary-dim);
    padding: 8px 16px;
    margin: 0 0 0.8em 0;
    font-size: 14px;
    color: var(--text-secondary);
}

.projects-page .post-content blockquote p {
    margin-bottom: 0;
}

.projects-page .post-content i[class*="devicon-"] {
    font-size: 1.1em;
    vertical-align: -0.15em;
    margin-right: 2px;
}

/* =========================
   FOOTER
   ========================= */
.site-footer {
    margin-top: 64px;
    padding: 32px 0;
    border-top: 1px solid var(--border);
    text-align: center;
}

.footer-content {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 32px;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 16px;
}

.footer-links a {
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted);
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--text-primary);
}

.footer-copy {
    font-family: var(--font-body);
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.footer-brand {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 12px;
    color: var(--primary);
    letter-spacing: 1px;
}

/* =========================
   404 PAGE
   ========================= */
.error-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
    text-align: center;
}

.error-container {
    border: 1px dashed var(--border);
    border-radius: 12px;
    padding: 64px 48px;
    max-width: 480px;
}

.error-code {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 80px;
    color: var(--primary);
    margin: 0;
    line-height: 1;
}

.error-msg {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 20px;
    color: var(--text-primary);
    margin: 12px 0 8px;
}

.error-desc {
    font-family: var(--font-body);
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 32px;
}

.error-home {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 600;
    padding: 10px 20px;
    background: var(--primary);
    color: var(--bg);
    border-radius: 8px;
    transition: background 0.2s;
}

.error-home:hover {
    background: var(--primary-hover);
    color: var(--bg);
}

/* =========================
   SELECTION & SCROLLBAR
   ========================= */
::selection {
    background: var(--primary);
    color: var(--bg);
}

::-webkit-scrollbar {
    width: 8px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-hover);
}

/* =========================
   POST EXCERPT LISTS (prevent style leak)
   ========================= */
.post-excerpt ul,
.post-excerpt ol,
.post-info ul,
.post-info ol {
    padding-left: 1.2em;
    list-style-position: inside;
    margin: 0;
}

/* =========================
   RESPONSIVE
   ========================= */
@media (max-width: 1024px) {
    .home-layout {
        grid-template-columns: 1fr 240px;
    }

    .post-layout.has-toc {
        display: block;
        max-width: 800px;
    }

    .toc-sidebar {
        display: none;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-image img {
        width: 140px;
        height: 140px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }

    .nav-inner {
        padding: 0 20px;
    }

    .nav-links {
        display: none;
    }

    .nav-menu-btn {
        display: flex;
        align-items: center;
    }

    .home-layout {
        grid-template-columns: 1fr;
        grid-template-areas:
            "hero"
            "posts"
            "sidebar";
    }

    .home-hero {
        flex-direction: column-reverse;
        text-align: center;
        gap: 24px;
        padding: 32px 0;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-desc {
        font-size: 16px;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-image img {
        width: 120px;
        height: 120px;
    }

    .section-title {
        font-size: 22px;
    }

    .post-single .post-title {
        font-size: 22px;
    }

    .post-content {
        padding: 24px 20px;
    }

    .page-title {
        font-size: 22px;
    }

    .search-wrapper {
        display: none;
    }

    .mobile-search-btn {
        display: flex;
    }

    body.mobile-search-active .search-wrapper {
        display: flex;
        position: fixed;
        top: 12px;
        left: 20px;
        right: 20px;
        height: 44px;
        border-radius: 10px;
        z-index: 1100;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    }

    body.mobile-search-active .search-wrapper .search-input {
        flex: 1;
        width: auto;
        font-size: 15px;
    }

    body.mobile-search-active .search-wrapper .search-close-btn {
        display: flex;
    }

    body.mobile-search-active .search-wrapper .search-results {
        position: fixed;
        top: 68px;
        left: 20px;
        right: 20px;
        width: auto;
        max-height: calc(100vh - 88px);
    }

    body.mobile-search-active::before {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 1050;
    }

    .site-footer {
        margin-top: 48px;
    }

    .footer-content {
        padding: 0 20px;
    }

    .projects-page .post-content {
        padding: 24px 20px;
    }

    .error-container {
        padding: 48px 32px;
        margin: 0 20px;
    }

    .error-code {
        font-size: 60px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }

    .post-info {
        padding: 16px 20px 20px;
    }
}

/* =========================
   SKILLS PAGE
   ========================= */
.skills-page {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 24px;
    padding-top: 32px;
}

.skills-header {
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}

.skills-header .page-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 28px;
    color: var(--text-primary);
    margin: 0;
    border: none;
    padding: 0;
}

.skills-table-wrapper {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    overflow-x: auto;
}

.skills-table {
    width: 100%;
    border-collapse: collapse;
    table-layout: fixed;
}

.skills-table .col-category {
    width: 110px;
}

.skills-table .col-level {
    width: calc((100% - 110px) / 3);
}

.skills-table th {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 14px;
    color: var(--text-primary);
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    border-right: 1px solid var(--border);
}

.skills-table th:last-child {
    border-right: none;
}

.skills-table td {
    padding: 16px;
    border-bottom: 1px solid var(--border);
    border-right: 1px solid var(--border);
    vertical-align: top;
}

.skills-table td:last-child {
    border-right: none;
}

.skills-table tr:last-child td {
    border-bottom: none;
}

.skill-category-name {
    font-family: var(--font-heading);
    font-size: 14px;
    color: var(--text-primary);
    white-space: pre-line;
}

.skill-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    align-items: center;
}

.skill-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 5px 10px 5px 7px;
    border-radius: 6px;
    font-family: var(--font-body);
    font-size: 12px;
    font-weight: 600;
    color: var(--text-primary);
    background: color-mix(in srgb, var(--badge-color) 15%, transparent);
    border: 1px solid color-mix(in srgb, var(--badge-color) 30%, transparent);
    text-decoration: none;
    line-height: 1;
    white-space: nowrap;
    min-width: 72px;
}

.skill-badge img {
    display: block;
    width: 14px;
    height: 14px;
    flex-shrink: 0;
    filter: drop-shadow(0 0 0.5px rgba(255,255,255,0.6)) drop-shadow(0 0 0.5px rgba(255,255,255,0.4));
}

/* 모바일: 테이블 → 카테고리별 카드로 전환 */
@media (max-width: 768px) {
    .skills-table-wrapper {
        padding: 16px;
    }

    .skills-table thead {
        display: none;
    }

    .skills-table,
    .skills-table tbody,
    .skills-table tr,
    .skills-table td {
        display: block;
    }

    .skills-table tr {
        margin-bottom: 20px;
        border-bottom: 1px solid var(--border);
        padding-bottom: 16px;
    }

    .skills-table tr:last-child {
        margin-bottom: 0;
        border-bottom: none;
        padding-bottom: 0;
    }

    .skill-category-name {
        font-size: 16px;
        margin-bottom: 12px;
        width: auto;
    }

    .skill-badges {
        margin-bottom: 8px;
    }

    /* 모바일에서 레벨 라벨 표시 */
    .skills-table td[data-level]::before {
        content: attr(data-level);
        font-family: var(--font-body);
        font-size: 11px;
        font-weight: 600;
        color: var(--text-muted);
        display: block;
        margin-bottom: 4px;
    }

    /* 뱃지가 없는 셀 숨기기 */
    .skills-table td[data-level]:not(:has(.skill-badge)) {
        display: none;
    }
}