/* 
   Reformed & Puritan Japanese Website Stylesheet
   Benchmarked: Westminster Seminary California
   Theme: Deep Navy, Classic Gold, Warm Off-white
*/

@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@500;700&family=Inter:wght@300;400;500;600&family=Noto+Sans+JP:wght@300;400;500;700&family=Noto+Serif+JP:wght@400;600;700&display=swap');

:root {
  --primary-color: #0A1C36;     /* Deep Navy */
  --primary-light: #1A304D;
  --accent-color: #C5A059;      /* Classic Gold */
  --accent-hover: #E3BE79;
  --bg-warm: #F8F6F0;           /* Warm Off-white */
  --bg-card: #FFFFFF;
  --bg-input: #FAF8F5;
  --text-dark: #2B2B2B;         /* Charcoal for maximum readability */
  --text-light: #6A6A6A;        /* Muted gray */
  --text-white: #FFFFFF;
  --border-color: #E2DDD5;
  --border-gold: #C5A059;
  
  --font-serif: 'Noto Serif JP', 'Cinzel', serif;
  --font-sans: 'Noto Sans JP', 'Inter', sans-serif;
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-subtle: 0 4px 20px rgba(0, 0, 0, 0.05);
  --shadow-hover: 0 10px 30px rgba(10, 28, 54, 0.1);
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-warm);
  color: var(--text-dark);
  line-height: 1.7;
  overflow-x: hidden;
}

/* ==========================================
   Header & Navigation
   ========================================== */
header {
  background-color: var(--primary-color);
  border-bottom: 2px solid var(--accent-color);
  padding: 1rem 5%;
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
}

.logo-icon {
  width: 42px;
  height: 42px;
  border: 2px solid var(--accent-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-color);
  font-family: 'Cinzel', serif;
  font-weight: 700;
  font-size: 1.2rem;
  background-color: rgba(255, 255, 255, 0.05);
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-title {
  color: var(--text-white);
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 1px;
}

.logo-subtitle {
  color: var(--accent-color);
  font-size: 0.75rem;
  letter-spacing: 2px;
  text-transform: uppercase;
}

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

.btn-admin {
  background-color: transparent;
  border: 1px solid var(--accent-color);
  color: var(--accent-color);
  padding: 6px 16px;
  font-size: 0.85rem;
  font-weight: 500;
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transition-smooth);
  font-family: var(--font-sans);
}

.btn-admin:hover {
  background-color: var(--accent-color);
  color: var(--primary-color);
}

/* ==========================================
   Hero Section
   ========================================== */
.hero {
  position: relative;
  background-image: linear-gradient(rgba(10, 28, 54, 0.82), rgba(10, 28, 54, 0.88)), url('hero_bg.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  color: var(--text-white);
  padding: 7rem 5% 5rem 5%;
  text-align: center;
  border-bottom: 5px solid var(--accent-color);
}

.hero-content {
  max-width: 900px;
  margin: 0 auto;
}

.hero-tagline {
  font-family: var(--font-serif);
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
  text-shadow: 0 4px 15px rgba(0,0,0,0.5);
  word-break: keep-all;
}

.hero-tagline span {
  display: block;
}

.hero-tagline .sub {
  font-size: 2.2rem;
  color: var(--accent-color);
  margin-top: 1rem;
}

.hero-divider {
  width: 80px;
  height: 2px;
  background-color: var(--accent-color);
  margin: 2rem auto;
}

/* ==========================================
   Main Big Buttons (5 Main Menus)
   ========================================== */
.main-menu-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.2rem;
  max-width: 1200px;
  margin: -3rem auto 0 auto;
  position: relative;
  z-index: 10;
  padding: 0 1.5rem;
}

.menu-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-top: 4px solid var(--accent-color);
  border-radius: 6px;
  padding: 2rem 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: var(--transition-smooth);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.menu-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
  border-top-color: var(--accent-hover);
  background-color: #FAF9F5;
}

.menu-card.active {
  border-top-color: var(--primary-color);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
  background-color: var(--bg-warm);
}

.menu-icon {
  font-size: 2rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.menu-title-jp {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 0.3rem;
}

.menu-title-kr {
  font-size: 0.85rem;
  color: var(--text-light);
  letter-spacing: 1px;
}

/* Sub-menu panel */
.submenu-container {
  max-width: 1200px;
  margin: 2rem auto 0 auto;
  padding: 0 1.5rem;
  display: none;
}

.submenu-container.active {
  display: block;
  animation: fadeIn 0.4s ease;
}

.submenu-panel {
  background-color: #FFF;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 1.5rem;
  box-shadow: var(--shadow-subtle);
}

.submenu-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.submenu-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.submenu-item {
  background-color: var(--bg-warm);
  border: 1px solid var(--border-color);
  padding: 8px 18px;
  border-radius: 4px;
  font-size: 0.9rem;
  color: var(--text-dark);
  cursor: pointer;
  transition: var(--transition-smooth);
}

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

.submenu-item.active {
  background-color: var(--accent-color);
  color: var(--primary-color);
  font-weight: 600;
  border-color: var(--accent-color);
}

/* ==========================================
   Three Column Section (Featured Blocks)
   ========================================== */
.featured-section {
  max-width: 1200px;
  margin: 4rem auto;
  padding: 0 1.5rem;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title {
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--primary-color);
  position: relative;
  display: inline-block;
  padding-bottom: 0.8rem;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 2px;
  background-color: var(--accent-color);
}

.three-column-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.featured-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 2.5rem 2rem;
  box-shadow: var(--shadow-subtle);
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
}

.featured-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
  border-color: var(--accent-color);
}

.card-tag {
  color: var(--accent-color);
  font-family: var(--font-serif);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
  display: block;
}

.card-title {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--primary-color);
  margin-bottom: 1.5rem;
  line-height: 1.4;
}

.card-body {
  font-size: 0.95rem;
  color: var(--text-dark);
  flex-grow: 1;
  margin-bottom: 1.5rem;
}

.scripture-highlight {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.1rem;
  color: var(--primary-light);
  border-left: 3px solid var(--accent-color);
  padding-left: 1rem;
  margin-bottom: 1.2rem;
}

.meta-info {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-light);
  border-top: 1px solid var(--border-color);
  padding-top: 1rem;
  margin-top: auto;
}

.card-btn {
  background-color: transparent;
  border: 1px solid var(--primary-color);
  color: var(--primary-color);
  padding: 8px 16px;
  border-radius: 4px;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-smooth);
  align-self: flex-start;
  margin-top: 1rem;
}

.card-btn:hover {
  background-color: var(--primary-color);
  color: var(--text-white);
}

/* ==========================================
   Article Display Workspace (List and Detail)
   ========================================== */
.workspace-container {
  max-width: 1200px;
  margin: 2rem auto 4rem auto;
  padding: 0 1.5rem;
  display: none;
}

.workspace-container.active {
  display: block;
  animation: fadeIn 0.4s ease;
}

.workspace-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 2rem;
}

/* Sidebar List */
.sidebar-nav {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 1.5rem;
  align-self: start;
}

.sidebar-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--primary-color);
  margin-bottom: 1.2rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.5rem;
}

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

.sidebar-item {
  padding: 8px 12px;
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transition-smooth);
  font-size: 0.95rem;
  margin-bottom: 6px;
}

.sidebar-item:hover {
  background-color: var(--bg-warm);
  color: var(--primary-color);
}

.sidebar-item.active {
  background-color: var(--primary-color);
  color: var(--text-white);
  font-weight: 500;
}

/* Main Content Area */
.content-area {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 2.5rem;
  min-height: 500px;
}

.view-header {
  margin-bottom: 2rem;
  border-bottom: 1.5px solid var(--border-color);
  padding-bottom: 1.5rem;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent-color);
  text-decoration: none;
  font-size: 0.9rem;
  margin-bottom: 1rem;
  cursor: pointer;
}

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

.view-title {
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--primary-color);
  line-height: 1.3;
}

/* Article List styling */
.article-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.article-item-card {
  padding: 1.5rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.article-item-card:hover {
  border-color: var(--accent-color);
  background-color: var(--bg-warm);
  transform: translateX(5px);
}

.article-item-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.article-item-meta {
  font-size: 0.8rem;
  color: var(--text-light);
  display: flex;
  gap: 15px;
}

.empty-message {
  text-align: center;
  color: var(--text-light);
  padding: 4rem 2rem;
  font-size: 1rem;
}

/* Article detail view */
.detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 0.85rem;
  color: var(--text-light);
  margin-top: 1rem;
}

.detail-meta-item strong {
  color: var(--primary-color);
}

.detail-scripture {
  background-color: var(--bg-warm);
  border-left: 4px solid var(--accent-color);
  padding: 1.2rem 1.5rem;
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--primary-color);
  margin: 1.5rem 0;
  border-radius: 0 4px 4px 0;
}

.detail-content {
  font-size: 1.05rem;
  color: var(--text-dark);
  line-height: 1.8;
  white-space: pre-wrap;
}

/* ==========================================
   Admin Modal & Dashboard
   ========================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(10, 28, 54, 0.7);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
}

.modal-overlay.active {
  display: flex;
  animation: fadeIn 0.3s ease;
}

.modal-box {
  background-color: var(--bg-card);
  border: 1.5px solid var(--accent-color);
  border-radius: 8px;
  width: 90%;
  max-width: 480px;
  padding: 2.5rem;
  box-shadow: 0 15px 40px rgba(0,0,0,0.2);
  position: relative;
}

.modal-close {
  position: absolute;
  top: 15px;
  right: 20px;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-light);
  transition: var(--transition-smooth);
}

.modal-close:hover {
  color: var(--primary-color);
}

.modal-title {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  color: var(--primary-color);
  margin-bottom: 1.5rem;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.8rem;
}

.form-group {
  margin-bottom: 1.2rem;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 0.4rem;
}

.form-input {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background-color: var(--bg-input);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: var(--transition-smooth);
}

.form-input:focus {
  outline: none;
  border-color: var(--accent-color);
  background-color: #FFFFFF;
  box-shadow: 0 0 0 3px rgba(197, 160, 89, 0.15);
}

.btn-submit {
  width: 100%;
  background-color: var(--primary-color);
  border: none;
  color: var(--text-white);
  padding: 12px;
  font-size: 1rem;
  font-weight: 500;
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transition-smooth);
  margin-top: 1rem;
}

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

/* ==========================================
   Admin Dashboard Layout
   ========================================== */
.admin-dashboard-container {
  max-width: 1250px;
  margin: 2rem auto 4rem auto;
  padding: 0 1.5rem;
  display: none;
}

.admin-dashboard-container.active {
  display: block;
  animation: fadeIn 0.4s ease;
}

.admin-header {
  background-color: var(--primary-color);
  border-radius: 6px;
  padding: 1.5rem 2rem;
  color: var(--text-white);
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  border-bottom: 3px solid var(--accent-color);
}

.admin-title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
}

.admin-meta {
  display: flex;
  align-items: center;
  gap: 15px;
}

.btn-logout {
  background-color: transparent;
  border: 1px solid rgba(255,255,255,0.4);
  color: var(--text-white);
  padding: 6px 12px;
  font-size: 0.8rem;
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.btn-logout:hover {
  background-color: var(--accent-color);
  border-color: var(--accent-color);
  color: var(--primary-color);
}

.admin-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 2rem;
}

.admin-sidebar {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 1.5rem;
  align-self: start;
}

.admin-menu-list {
  list-style: none;
}

.admin-menu-item {
  padding: 10px 14px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.95rem;
  margin-bottom: 6px;
  transition: var(--transition-smooth);
  display: flex;
  align-items: center;
  gap: 10px;
}

.admin-menu-item:hover {
  background-color: var(--bg-warm);
}

.admin-menu-item.active {
  background-color: var(--primary-color);
  color: var(--text-white);
}

.admin-content {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 2.5rem;
}

.admin-section-title {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--primary-color);
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.6rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Category Manager UI */
.category-manager-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 2rem;
}

.category-list-box {
  border-right: 1px solid var(--border-color);
  padding-right: 2rem;
}

.category-badges {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 400px;
  overflow-y: auto;
  margin-top: 1rem;
}

.category-badge-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: var(--bg-warm);
  border: 1px solid var(--border-color);
  padding: 10px 14px;
  border-radius: 4px;
}

.category-badge-name {
  font-size: 0.9rem;
  font-weight: 500;
}

.btn-icon-delete {
  background: none;
  border: none;
  color: #c0392b;
  cursor: pointer;
  font-size: 1rem;
  opacity: 0.7;
  transition: var(--transition-smooth);
}

.btn-icon-delete:hover {
  opacity: 1;
  transform: scale(1.1);
}

/* Form Styles for Write Page */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.textarea-content {
  min-height: 250px;
  resize: vertical;
}

/* Article manager list */
.admin-article-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.admin-article-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 18px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background-color: var(--bg-input);
}

.admin-article-info {
  display: flex;
  flex-direction: column;
}

.admin-article-title {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--primary-color);
}

.admin-article-meta {
  font-size: 0.75rem;
  color: var(--text-light);
  margin-top: 2px;
}

.admin-article-actions {
  display: flex;
  gap: 10px;
}

.btn-mini-edit {
  background-color: var(--primary-color);
  color: var(--text-white);
  border: none;
  padding: 4px 10px;
  border-radius: 3px;
  font-size: 0.75rem;
  cursor: pointer;
}

.btn-mini-delete {
  background-color: #c0392b;
  color: var(--text-white);
  border: none;
  padding: 4px 10px;
  border-radius: 3px;
  font-size: 0.75rem;
  cursor: pointer;
}

/* ==========================================
   Footer
   ========================================= */
footer {
  background-color: var(--primary-color);
  color: rgba(255,255,255,0.7);
  padding: 4rem 5% 2rem 5%;
  border-top: 3px solid var(--accent-color);
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  max-width: 1200px;
  margin: 0 auto 3rem auto;
}

.footer-col-about h3 {
  font-family: var(--font-serif);
  color: var(--text-white);
  margin-bottom: 1.2rem;
  font-size: 1.2rem;
}

.footer-col-links h4 {
  font-family: var(--font-serif);
  color: var(--accent-color);
  margin-bottom: 1.2rem;
  font-size: 1rem;
}

.footer-links-list {
  list-style: none;
}

.footer-links-list li {
  margin-bottom: 8px;
}

.footer-links-list a {
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  transition: var(--transition-smooth);
}

.footer-links-list a:hover {
  color: var(--accent-color);
  padding-left: 5px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1.5rem;
  text-align: center;
  font-size: 0.8rem;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* ==========================================
   Animations
   ========================================== */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================
   Responsive Breakpoints
   ========================================== */
@media (max-width: 1024px) {
  .hero-tagline {
    font-size: 2.8rem;
  }
  
  .hero-tagline .sub {
    font-size: 1.8rem;
  }
  
  .main-menu-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .three-column-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .workspace-layout {
    grid-template-columns: 1fr;
  }
  
  .category-manager-layout {
    grid-template-columns: 1fr;
  }
  
  .category-list-box {
    border-right: none;
    border-bottom: 1px solid var(--border-color);
    padding-right: 0;
    padding-bottom: 2rem;
  }
  
  .admin-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  header {
    flex-direction: column;
    gap: 10px;
    padding: 1rem;
  }
  
  .hero-tagline {
    font-size: 2rem;
  }
  
  .hero-tagline .sub {
    font-size: 1.4rem;
  }
  
  .main-menu-grid {
    grid-template-columns: 1fr;
    margin-top: -2rem;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 10px;
  }
  
  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }
}

/* ==========================================
   Tree View Styles (관리자 폴더/카테고리 트리)
   ========================================== */
.category-tree-container {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 480px;
  overflow-y: auto;
  margin-top: 1rem;
  padding: 10px;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 6px;
}

.category-tree-node {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 8px 12px;
  border-radius: 4px;
  margin-bottom: 4px;
  transition: var(--transition-smooth);
}

.category-tree-node:hover {
  border-color: var(--accent-color);
  background-color: #FAF9F5;
}

.category-node-info {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--primary-color);
}

.category-node-actions {
  display: flex;
  gap: 5px;
}

.btn-tree-action {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.85rem;
  padding: 4px 6px;
  border-radius: 3px;
  transition: var(--transition-smooth);
}

.btn-tree-action:hover {
  background-color: rgba(10, 28, 54, 0.05);
  transform: translateY(-1px);
}

.btn-tree-action.move-up { color: var(--primary-light); }
.btn-tree-action.move-down { color: var(--primary-light); }
.btn-tree-action.edit-name { color: var(--accent-color); }
.btn-tree-action.add-sub { color: #27ae60; }
.btn-tree-action.delete-node { color: #c0392b; }

/* depth-indented classes */
.depth-indent-1 { margin-left: 20px; border-left: 2px dashed var(--border-color); padding-left: 10px; }
.depth-indent-2 { margin-left: 40px; border-left: 2px dashed var(--border-color); padding-left: 10px; }
.depth-indent-3 { margin-left: 60px; border-left: 2px dashed var(--border-color); padding-left: 10px; }
.depth-indent-4 { margin-left: 80px; border-left: 2px dashed var(--border-color); padding-left: 10px; }

/* depth for sidebar item */
.sidebar-item.depth-1 { padding-left: 24px; }
.sidebar-item.depth-2 { padding-left: 36px; }
.sidebar-item.depth-3 { padding-left: 48px; }
.sidebar-item.depth-4 { padding-left: 60px; }

/* ==========================================
   Video Gallery Grid (목회자 10분 신학 - 동영상 카드)
   ========================================== */
.video-gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 1rem;
}

.video-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  overflow: hidden;
  box-shadow: var(--shadow-subtle);
  cursor: pointer;
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
}

.video-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
  border-color: var(--accent-color);
}

.video-thumbnail-container {
  position: relative;
  width: 100%;
  padding-top: 56.25%; /* 16:9 aspect ratio */
  overflow: hidden;
  background-color: #000000;
}

.video-thumbnail {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.video-card:hover .video-thumbnail {
  transform: scale(1.06);
}

.video-play-badge {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 46px;
  height: 46px;
  background-color: rgba(10, 28, 54, 0.85);
  border: 2px solid var(--accent-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-color);
  font-size: 1.1rem;
  transition: var(--transition-smooth);
  opacity: 0.85;
  z-index: 2;
}

.video-card:hover .video-play-badge {
  background-color: var(--accent-color);
  color: var(--primary-color);
  transform: translate(-50%, -50%) scale(1.1);
  opacity: 1;
}

.video-card-info {
  padding: 1.2rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.video-card-title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 0.6rem;
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 2.9rem;
}

.video-card-meta {
  font-size: 0.75rem;
  color: var(--text-light);
  margin-top: auto;
  display: flex;
  justify-content: space-between;
  border-top: 1px solid var(--border-color);
  padding-top: 8px;
}

/* ==========================================
   Responsive Video Embed (상세보기 비디오)
   ========================================== */
.video-embed-wrapper {
  position: relative;
  width: 100%;
  padding-top: 56.25%; /* 16:9 aspect ratio */
  margin: 1.5rem 0;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: var(--shadow-subtle);
  border: 1px solid var(--border-color);
}

.video-embed-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}