/* ==========================================================================
   Tistory Skin - Modern Design Style Sheet
   ========================================================================== */

/* 1. Theme & Custom Variables */
:root {
  /* Light Mode Colors */
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --text-primary: #111827;
  --text-secondary: #4b5563;
  --text-muted: #9ca3af;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --border-color: #e5e7eb;
  --border-color-focus: #9ca3af;
  --card-bg: #ffffff;
  --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  --card-shadow-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --header-bg: rgba(255, 255, 255, 0.85);
  --header-blur: 12px;
  --input-bg: #ffffff;
  --code-bg: #f3f4f6;
  --code-text: #ef4444;
  --blockquote-bg: #f9fafb;
  --transition-speed: 0.25s;
  --font-sans: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, "Helvetica Neue", "Segoe UI", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
}

[data-theme="dark"] {
  /* Dark Mode Colors */
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #64748b;
  --accent: #3b82f6;
  --accent-hover: #60a5fa;
  --border-color: #334155;
  --border-color-focus: #475569;
  --card-bg: #1e293b;
  --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.2), 0 2px 4px -1px rgba(0, 0, 0, 0.1);
  --card-shadow-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
  --header-bg: rgba(15, 23, 42, 0.85);
  --input-bg: #1e293b;
  --code-bg: #1e293b;
  --code-text: #f43f5e;
  --blockquote-bg: #1e293b;
}

/* 2. Global Resets & Defaults */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-speed) ease, background var(--transition-speed) ease;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  background: none;
  border: none;
  outline: none;
}

ul, ol {
  list-style: none;
}

/* Screen out helper for accessibility */
.screen_out {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

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

/* 3. Layout Structure */
#wrap {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

#container {
  flex: 1;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px;
  display: flex;
  flex-direction: column;
}

.main {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
}

.area-main {
  min-width: 0; /* Prevents overflow in flex/grid items */
}

/* 4. Header Styling */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--header-bg);
  backdrop-filter: blur(var(--header-blur));
  -webkit-backdrop-filter: blur(var(--header-blur));
  border-bottom: 1px solid var(--border-color);
  transition: background-color var(--transition-speed) ease, border-bottom var(--transition-speed) ease;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 15px 20px;
}

.header-logo-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.title-logo {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.img-logo {
  max-height: 40px;
  width: auto;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 15px;
}

/* Desktop Search Box */
.search-box {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 6px 15px;
  transition: border-color var(--transition-speed) ease;
}

.search-box:focus-within {
  border-color: var(--accent);
}

.search-input-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}

.search-input-wrap input {
  width: 180px;
  font-size: 0.875rem;
}

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

.btn-search-submit {
  cursor: pointer;
  color: var(--text-secondary);
}

.btn-search-submit:hover {
  color: var(--accent);
}

/* Dark Mode Toggle */
.btn-theme-toggle {
  cursor: pointer;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
}

.btn-theme-toggle:hover {
  background-color: var(--border-color);
  color: var(--text-primary);
}

.icon-sun {
  display: none;
}

[data-theme="dark"] .icon-sun {
  display: block;
}

[data-theme="dark"] .icon-moon {
  display: none;
}

/* Hamburger menu btn */
.button-menu {
  cursor: pointer;
  display: none; /* Desktop only by default, shown on mobile */
  color: var(--text-primary);
}

/* Bottom Navigation Row */
.header-nav-row {
  margin-top: 15px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  border-top: 1px solid var(--border-color);
  padding-top: 10px;
}

.area-gnb nav ul {
  display: flex;
  gap: 24px;
}

.area-gnb nav ul li a {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
  position: relative;
  padding: 5px 0;
}

.area-gnb nav ul li a:hover {
  color: var(--accent);
}

/* Promotion banner styling */
.area-promotion {
  width: 100%;
  margin-top: 15px;
  border-radius: 12px;
  background-size: cover;
  background-position: center;
  overflow: hidden;
  height: 200px;
  position: relative;
}

.inner-promotion {
  position: absolute;
  inset: 0;
  background: linear-gradient(rgba(0,0,0,0.2), rgba(0,0,0,0.6));
  display: flex;
  align-items: center;
  padding: 0 40px;
}

.box-promotion {
  color: #ffffff;
  max-width: 500px;
}

.box-promotion strong {
  display: block;
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.link-promotion {
  display: inline-block;
  padding: 8px 20px;
  border-radius: 6px;
  color: #ffffff !important;
  font-size: 0.875rem;
  font-weight: 600;
}

/* 5. Post List & Grid Card Styles */
.title-search {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 24px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--text-primary);
}

.title-search span.list-count {
  color: var(--accent);
  margin-left: 5px;
}

.article-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 30px;
  margin-bottom: 40px;
}

.article-type-common {
  background-color: var(--card-bg);
  border-radius: 12px;
  border: 1px solid var(--border-color);
  box-shadow: var(--card-shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease, border-color var(--transition-speed) ease;
}

.article-type-common:hover {
  transform: translateY(-4px);
  box-shadow: var(--card-shadow-hover);
  border-color: var(--accent);
}

.link-article-thumb {
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
}

.thumbnail-wrap {
  width: 100%;
  height: 100%;
  background-color: var(--bg-secondary);
}

.img-thumbnail {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.article-type-common:hover .img-thumbnail {
  transform: scale(1.05);
}

.article-content {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.article-content .title {
  display: block;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
  line-height: 1.4;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.article-content .summary {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
  line-height: 1.6;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  flex: 1;
}

.box-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.75rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-color);
  padding-top: 12px;
}

.box-meta a.link-category {
  color: var(--accent);
  font-weight: 600;
}

.box-meta .reply {
  margin-left: auto;
  color: var(--text-secondary);
  font-weight: 600;
}

/* Empty search states styling */
.box-no-search {
  grid-column: 1 / -1;
  text-align: center;
  padding: 80px 20px;
  background-color: var(--bg-secondary);
  border-radius: 12px;
  border: 1px dashed var(--border-color);
}

.box-no-search i {
  font-size: 3rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  display: block;
}

.box-no-search p {
  color: var(--text-secondary);
  margin-bottom: 8px;
  font-size: 0.95rem;
}

/* 6. Article Detail View Styling */
.article-header {
  border-radius: 16px;
  overflow: hidden;
  margin-bottom: 35px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
}

.article-header.has-bg {
  background-size: cover;
  background-position: center;
  position: relative;
  border: none;
}

.article-header-overlay {
  padding: 60px 40px;
}

.article-header.has-bg .article-header-overlay {
  background: linear-gradient(rgba(15, 23, 42, 0.4), rgba(15, 23, 42, 0.8));
  color: #ffffff;
}

.article-header .box-meta {
  border-top: none;
  padding-top: 0;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.article-header.has-bg .box-meta {
  color: rgba(255, 255, 255, 0.8);
}

.article-header.has-bg .box-meta a.link-category {
  color: #60a5fa;
}

.title-article {
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1.3;
  margin: 15px 0;
  letter-spacing: -0.02em;
}

.box-info {
  display: flex;
  gap: 15px;
  font-size: 0.875rem;
}

/* Entry Content (Post Body) Styling */
.entry-content {
  font-size: 1.0625rem;
  color: var(--text-primary);
  line-height: 1.8;
  letter-spacing: -0.01em;
  margin-bottom: 50px;
}

.entry-content p {
  margin-bottom: 24px;
}

.entry-content h1, .entry-content h2, .entry-content h3, .entry-content h4 {
  font-weight: 800;
  line-height: 1.4;
  margin: 45px 0 20px 0;
  letter-spacing: -0.02em;
}

.entry-content h1 { font-size: 1.75rem; padding-bottom: 8px; border-bottom: 1px solid var(--border-color); }
.entry-content h2 { font-size: 1.5rem; border-left: 4px solid var(--accent); padding-left: 12px; }
.entry-content h3 { font-size: 1.25rem; }

.entry-content ul, .entry-content ol {
  margin-bottom: 24px;
  padding-left: 24px;
}

.entry-content ul {
  list-style: disc;
}

.entry-content ol {
  list-style: decimal;
}

.entry-content li {
  margin-bottom: 8px;
}

.entry-content blockquote {
  background-color: var(--blockquote-bg);
  border-left: 4px solid var(--accent);
  padding: 16px 24px;
  margin: 30px 0;
  border-radius: 0 8px 8px 0;
  color: var(--text-secondary);
  font-style: italic;
}

.entry-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 30px 0;
  font-size: 0.95rem;
}

.entry-content th, .entry-content td {
  padding: 12px 15px;
  border: 1px solid var(--border-color);
  text-align: left;
}

.entry-content th {
  background-color: var(--bg-secondary);
  font-weight: 700;
}

.entry-content pre, .entry-content code {
  font-family: Consolas, Monaco, 'Andale Mono', monospace;
  font-size: 0.9rem;
  border-radius: 4px;
}

.entry-content code {
  background-color: var(--code-bg);
  color: var(--code-text);
  padding: 3px 6px;
}

.entry-content pre {
  background-color: var(--code-bg);
  padding: 20px;
  overflow-x: auto;
  border-radius: 8px;
  margin: 24px 0;
  border: 1px solid var(--border-color);
}

.entry-content pre code {
  background-color: transparent;
  color: inherit;
  padding: 0;
  font-size: 0.875rem;
}

.entry-content figure, .entry-content img {
  border-radius: 8px;
  margin: 30px 0;
}

/* 7. Article Footer Elements */
.article-footer {
  border-top: 1px solid var(--border-color);
  padding-top: 30px;
  margin-top: 50px;
}

.title-footer {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 15px;
}

/* Tag Pills */
.box-tag {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 35px;
}

.box-tag a {
  display: inline-block;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 500;
}

.box-tag a:hover {
  background-color: var(--accent);
  color: #ffffff !important;
  border-color: var(--accent);
}

/* Prev/Next Post Link Cards */
.article-page {
  margin-bottom: 45px;
}

.nav-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.nav-links li {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  transition: border-color var(--transition-speed) ease;
}

.nav-links li:hover {
  border-color: var(--accent);
}

.nav-links li a {
  display: flex;
  flex-direction: column;
  padding: 15px 20px;
  height: 100%;
}

.nav-dir {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.nav-links strong {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.curr-post {
  display: none; /* Hide current post item inside footer list */
}

.prev-post {
  grid-column: 1;
}

.next-post {
  grid-column: 2;
}

/* Related Posts */
.article-related {
  margin-bottom: 45px;
}

.list-related {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}

.item-related {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
}

.link-related {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.link-related .thumbnail {
  aspect-ratio: 16 / 9;
  background-size: cover;
  background-position: center;
  background-color: var(--bg-secondary);
}

.link-related .box_content {
  padding: 15px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.link-related strong {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: 10px;
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.link-related .date {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Protected page lock styles */
.area-protected {
  text-align: center;
  padding: 60px 20px;
  background-color: var(--bg-secondary);
  border-radius: 12px;
}

.text-protected i {
  font-size: 3rem;
  color: var(--text-muted);
  margin-bottom: 15px;
}

.text-protected {
  margin-bottom: 25px;
  color: var(--text-secondary);
}

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

.box-protected input {
  padding: 10px 15px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-primary);
  width: 200px;
}

.box-protected button {
  background-color: var(--accent);
  color: #ffffff;
  padding: 10px 20px;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
}

.box-protected button:hover {
  background-color: var(--accent-hover);
}

/* 8. Paging / Pagination */
.area-paging {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 15px;
  margin: 40px 0;
}

.link_page {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  background-color: var(--card-bg);
  cursor: pointer;
}

.link_page:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.paging_num {
  display: flex;
  gap: 8px;
}

.link_num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-weight: 600;
  font-size: 0.9rem;
}

.link_num:hover, .link_num.selected {
  background-color: var(--accent);
  color: #ffffff !important;
}

.area-paging-more {
  display: none; /* Hide old mobile 'More' button */
}

/* 9. Sidebar Styling */
.area-aside {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.aside-inner {
  display: flex;
  flex-direction: column;
  gap: 35px;
}

.title-sidebar {
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 15px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 8px;
}

/* Profile Card Widget */
.box-profile {
  border-radius: 12px;
  overflow: hidden;
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  box-shadow: var(--card-shadow);
  padding: 30px 20px;
  text-align: center;
}

.box-profile.box-profile-invert {
  background-size: cover;
  background-position: center;
  position: relative;
}

.box-profile.box-profile-invert::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.7);
  z-index: 1;
}

.box-profile.box-profile-invert .inner-box {
  position: relative;
  z-index: 2;
  color: #ffffff;
}

.img-profile {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  margin: 0 auto 15px auto;
  border: 2px solid var(--accent);
}

.box-profile.box-profile-invert .img-profile {
  border-color: #ffffff;
}

.tit-g {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.text-profile {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.box-profile.box-profile-invert .text-profile {
  color: rgba(255, 255, 255, 0.8);
}

/* Subscription btn Tistory style override */
.sub-btn-wrap {
  display: inline-block;
  margin-bottom: 15px;
}

.sub-btn-wrap button {
  cursor: pointer;
}

.profile-btn-group {
  display: flex;
  gap: 10px;
  justify-content: center;
}

.profile-btn-group .btn-g {
  cursor: pointer;
  flex: 1;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 0.8125rem;
  font-weight: 600;
  border: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
}

.profile-btn-group .btn-g.btn-primary {
  background-color: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
}

.profile-btn-group .btn-g:hover {
  opacity: 0.9;
}

/* Social Icon List */
.box-sns {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 20px;
}

.link-sns {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.link-sns:hover {
  background-color: var(--accent);
  color: #ffffff !important;
  border-color: var(--accent);
}

/* Category Widget */
.category-nav ul {
  padding-left: 0;
}

.category-nav li {
  margin-bottom: 6px;
}

.category-nav a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
  color: var(--text-secondary);
  padding: 6px 10px;
  border-radius: 6px;
}

.category-nav a:hover {
  background-color: var(--bg-secondary);
  color: var(--accent);
}

.category-nav li ul {
  padding-left: 15px;
  margin-top: 5px;
}

/* Sidebar Tag Cloud */
.box-tag-sidebar .box_tag {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.box-tag-sidebar .box_tag a {
  display: inline-block;
  background-color: var(--bg-secondary);
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.75rem;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.box-tag-sidebar .box_tag a:hover {
  background-color: var(--accent);
  color: #ffffff !important;
}

/* Tabbed Widget (Recent vs Popular) */
.box-recent-tab {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
}

.tab-recent-nav {
  display: flex;
  border-bottom: 1px solid var(--border-color);
}

.tab-recent-nav li {
  flex: 1;
  text-align: center;
  padding: 12px 10px;
  font-size: 0.875rem;
  font-weight: 700;
  cursor: pointer;
  background-color: var(--bg-secondary);
  color: var(--text-secondary);
  transition: all var(--transition-speed) ease;
}

.tab-recent-nav li.active {
  background-color: var(--card-bg);
  color: var(--accent);
  border-bottom: 2px solid var(--accent);
}

.tab-content {
  display: none;
  padding: 15px;
}

.tab-content.active {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.link-recent {
  display: flex;
  gap: 12px;
  align-items: center;
}

.link-recent .thumbnail {
  width: 50px;
  height: 50px;
  border-radius: 6px;
  background-size: cover;
  background-position: center;
  background-color: var(--bg-secondary);
  flex-shrink: 0;
}

.box-recent-content {
  min-width: 0;
}

.box-recent-content strong {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 4px;
}

.box-recent-content .date {
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* Recent Comments & Notices Widget List */
.list-sidebar {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.list-sidebar li {
  border-bottom: 1px dashed var(--border-color);
  padding-bottom: 10px;
}

.list-sidebar li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.list-sidebar a {
  display: block;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.list-sidebar a:hover {
  color: var(--accent);
}

.list-sidebar strong {
  font-weight: 500;
}

.list-sidebar .comment-author {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Visitors Counter widget details */
.text-total {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 8px;
}

.visit-detail {
  display: flex;
  gap: 15px;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.visit-detail span {
  font-weight: 700;
  color: var(--text-primary);
}

/* Facebook & Twitter Tab Toggle Widget */
.box-plugins .tab-sns {
  display: flex;
  gap: 10px;
  margin-bottom: 15px;
}

.box-plugins .tab-sns li {
  cursor: pointer;
  font-size: 0.8125rem;
  padding: 4px 10px;
  border-radius: 4px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
}

.box-plugins .tab-sns li.active {
  background-color: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
}

.sns-tab-content {
  display: none;
}

.sns-tab-content.active {
  display: block;
}

/* 10. Tistory Comments System Native Overrides */
.comment-list ul {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.comment-list li {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 20px;
}

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

.comment-list li ul {
  margin-top: 20px;
  padding-left: 20px;
  border-left: 2px solid var(--border-color);
}

.comment-list .comment-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.comment-list .comment-author {
  font-weight: 700;
  font-size: 0.95rem;
}

.comment-list .comment-date {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.comment-list .comment-body {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Comment Editor Form */
.comment-form, .guestbook-form {
  background-color: var(--bg-secondary);
  padding: 24px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  margin-top: 30px;
}

.comment-form textarea, .guestbook-form textarea {
  width: 100%;
  height: 80px;
  padding: 12px;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  resize: vertical;
  margin-bottom: 15px;
}

.comment-form textarea:focus, .guestbook-form textarea:focus {
  border-color: var(--accent);
}

.comment-form-inputs {
  display: flex;
  gap: 10px;
  margin-bottom: 15px;
}

.comment-form-inputs input {
  flex: 1;
  padding: 8px 12px;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
}

.comment-form-submit {
  text-align: right;
}

.comment-form-submit button {
  background-color: var(--accent);
  color: #ffffff;
  padding: 8px 24px;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
}

.comment-form-submit button:hover {
  background-color: var(--accent-hover);
}

/* 11. Footer Styling */
#footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 40px 20px;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.inner-footer {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 20px;
}

.box-policy {
  display: flex;
  gap: 20px;
}

.box-policy a {
  font-weight: 600;
}

.box-policy a:hover {
  color: var(--accent);
}

.footer-info address {
  font-style: normal;
  margin-top: 5px;
  color: var(--text-muted);
}

/* Dropdown Site Menu */
.box-site {
  position: relative;
}

.btn-dropdown {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  padding: 6px 15px;
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
}

.dropdown-list {
  display: none;
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  margin-bottom: 8px;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  width: 150px;
  box-shadow: var(--card-shadow);
  z-index: 10;
}

.dropdown-list.show {
  display: block;
}

.dropdown-list li a {
  display: block;
  padding: 8px 12px;
  text-align: left;
}

.dropdown-list li a:hover {
  background-color: var(--bg-secondary);
  color: var(--accent);
}

/* 12. Media Queries & Responsiveness */

/* Large Tablets & Desktop Adjustments (<= 1024px) */
@media screen and (max-width: 1024px) {
  .main {
    grid-template-columns: 1fr; /* Hide side column sidebar, stack below or drawerize */
  }

  .wrap-drawer .area-aside {
    position: fixed;
    top: 0;
    right: -300px; /* Hidden offscreen right */
    width: 300px;
    height: 100%;
    background-color: var(--bg-primary);
    border-left: 1px solid var(--border-color);
    box-shadow: -4px 0 12px rgba(0,0,0,0.15);
    z-index: 2000;
    overflow-y: auto;
    padding: 30px 20px;
    transition: right 0.3s ease-in-out;
  }

  .wrap-drawer.aside-open .area-aside {
    right: 0;
  }

  .button-menu {
    display: block; /* Show hamburger button on mobile/tablets */
  }

  /* Dimmer overlay when mobile menu is open */
  .wrap-drawer::before {
    content: '';
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.4);
    z-index: 1500;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
  }

  .wrap-drawer.aside-open::before {
    opacity: 1;
    pointer-events: auto;
  }

  /* Slogan display toggle on mobile */
  .area-slogun.slogunmobileoff {
    display: none !important;
  }

  .header-nav-row {
    overflow-x: auto;
    white-space: nowrap;
    padding-bottom: 12px;
  }

  .area-gnb nav ul {
    gap: 15px;
  }
}

/* Smart Phones (<= 768px) */
@media screen and (max-width: 768px) {
  #container {
    padding: 20px 15px;
  }

  .title-article {
    font-size: 1.6rem;
  }

  .article-list {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .article-header-overlay {
    padding: 30px 20px;
  }

  .nav-links {
    grid-template-columns: 1fr;
  }

  .prev-post, .next-post {
    grid-column: span 1;
  }

  .list-related {
    grid-template-columns: 1fr;
  }

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

  .box-promotion strong {
    font-size: 1.25rem;
  }

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