:root {
  /* Light Theme - Naver Blog Style */
  --naver-green: #03C75A;
  --bg-color: #f1f3f5;
  --header-bg: #ffffff;
  --content-bg: #ffffff;
  --sidebar-bg: #ffffff;
  --text-main: #222222;
  --text-muted: #666666;
  --text-light: #999999;
  --border-color: #e5e7eb;
  --link-hover: #03C75A;
  --card-shadow: 0 1px 3px rgba(0,0,0,0.05);
  
  --inner-width: 1080px;
  --transition-speed: 0.2s;
}

[data-theme="dark"] {
  --bg-color: #1a1a1b;
  --header-bg: #242526;
  --content-bg: #242526;
  --sidebar-bg: #242526;
  --text-main: #e4e6eb;
  --text-muted: #b0b3b8;
  --text-light: #777;
  --border-color: #3e4042;
  --link-hover: #03e66a;
  --card-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

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

body {
  font-family: 'Pretendard', 'Nanum Gothic', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.6;
  transition: background-color var(--transition-speed), color var(--transition-speed);
}

a {
  text-decoration: none;
  color: inherit;
}

.inner {
  max-width: var(--inner-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
#blog-header {
  background-color: var(--header-bg);
  border-bottom: 1px solid var(--border-color);
  padding: 40px 0 0;
  margin-bottom: 30px;
  transition: background-color var(--transition-speed);
}

.blog-title h1 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 10px;
}

.blog-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 30px;
}

.header-utils {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border-color);
  padding: 10px 0;
}

.search-box {
  display: flex;
  gap: 5px;
}

.search-box input {
  padding: 5px 12px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: inherit;
  width: 200px;
}

.search-box button {
  padding: 5px 15px;
  background-color: var(--naver-green);
  color: white;
  border: none;
  border-radius: 4px;
  font-weight: 700;
  cursor: pointer;
}

#theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.2rem;
}

.blog-nav {
  display: flex;
  gap: 20px;
}

.blog-nav a {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-muted);
}

.blog-nav a.active, .blog-nav a:hover {
  color: var(--naver-green);
  border-bottom: 2px solid var(--naver-green);
}

/* Layout */
#blog-container {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 30px;
}

/* Sidebar */
#blog-sidebar {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.sidebar-widget, .profile-card {
  background-color: var(--sidebar-bg);
  padding: 20px;
  border-radius: 4px;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--border-color);
  transition: background-color var(--transition-speed);
}

.profile-card {
  text-align: center;
}

.profile-img {
  width: 80px;
  height: 80px;
  background-color: var(--naver-green);
  color: white;
  border-radius: 50%;
  margin: 0 auto 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  font-weight: 800;
}

.nickname {
  font-size: 1.1rem;
  font-weight: 800;
}

.id {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 10px;
}

.intro {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 15px;
  word-break: keep-all;
}

.profile-btns {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.follow-btn {
  width: 100%;
  padding: 8px;
  background-color: var(--naver-green);
  color: white;
  border: none;
  border-radius: 2px;
  font-weight: 700;
  cursor: pointer;
}

.sidebar-widget h3 {
  font-size: 0.9rem;
  font-weight: 800;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 10px;
  margin-bottom: 15px;
}

#trending-keywords {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.keyword-item {
  font-size: 0.9rem;
  display: flex;
  gap: 10px;
  align-items: center;
}

.keyword-rank {
  font-weight: 800;
  color: var(--naver-green);
  min-width: 20px;
}

.update-time {
  font-size: 0.75rem;
  color: var(--text-light);
  margin-top: 15px;
  text-align: right;
}

.categories ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.categories a {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.categories a.active {
  color: var(--naver-green);
  font-weight: 700;
}

/* Main Content */
#blog-main {
  background-color: var(--content-bg);
  padding: 20px;
  border-radius: 4px;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--border-color);
  min-height: 800px;
  transition: background-color var(--transition-speed);
}

/* Split View */
#home-split-view {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.news-column {
  display: flex;
  flex-direction: column;
}

.column-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--naver-green);
  margin-bottom: 15px;
}

.column-header .title {
  font-size: 1.1rem;
  font-weight: 800;
}

.refresh-small {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.9rem;
}

/* Content Header (Single View) */
.content-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--text-main);
  padding-bottom: 15px;
  margin-bottom: 20px;
}

/* News Items */
.news-item {
  padding: 15px 0;
  border-bottom: 1px solid var(--border-color);
}

.news-item:last-child {
  border-bottom: none;
}

.news-category {
  font-size: 0.75rem;
  color: var(--naver-green);
  font-weight: 700;
}

.news-title {
  font-size: 1rem;
  font-weight: 700;
  margin: 5px 0;
  color: var(--text-main);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-summary {
  font-size: 0.85rem;
  color: var(--text-muted);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 10px;
  word-break: break-all;
}

.news-meta {
  font-size: 0.75rem;
  color: var(--text-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.news-content-img {
  width: 100%;
  height: 120px;
  object-fit: cover;
  border-radius: 4px;
  margin: 10px 0;
}

.delete-news-btn {
  background: none;
  border: none;
  color: #ff4d4f;
  font-size: 0.75rem;
  cursor: pointer;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.5);
  backdrop-filter: blur(2px);
}

.modal-content {
  background-color: var(--content-bg);
  margin: 10% auto;
  padding: 25px;
  border-radius: 8px;
  width: 90%;
  max-width: 500px;
  box-shadow: 0 5px 30px rgba(0,0,0,0.3);
}

.modal-content.detail-content {
  max-width: 800px;
  max-height: 80vh;
  overflow-y: auto;
}

#detail-body {
  line-height: 1.8;
  font-size: 1rem;
}

#detail-body img {
  width: 100%;
  max-height: 400px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
}

#detail-body .content-text {
  white-space: pre-wrap;
  color: var(--text-main);
}

.news-title a {
  cursor: pointer;
}

.news-title a:hover {
  color: var(--naver-green);
  text-decoration: underline;
}

.header-util-btn {
  background: none;
  border: 1px solid var(--border-color);
  padding: 5px 12px;
  border-radius: 4px;
  font-size: 0.8rem;
  color: var(--text-muted);
  cursor: pointer;
  margin-right: 10px;
}

#admin-login-btn.logged-in {
  background-color: var(--naver-green);
  color: white;
  border: none;
}

.modal-content.login-mini {
  max-width: 350px;
  margin-top: 15%;
}

#do-login-btn {
  width: 100%;
  padding: 10px;
  background-color: var(--naver-green);
  color: white;
  border: none;
  border-radius: 4px;
  font-weight: 700;
  cursor: pointer;
}

/* Footer */
#blog-footer {
  margin-top: 60px;
  padding: 40px 0;
  border-top: 1px solid var(--border-color);
  background-color: var(--header-bg);
}

@media (max-width: 900px) {
  #blog-container {
    grid-template-columns: 1fr;
  }
  
  #home-split-view {
    grid-template-columns: 1fr;
  }
}