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

:root {
  /* MongKo Brand Colors */
  --primary: #0066CC;
  --primary-dark: #004C99;
  --primary-light: #4DA6FF;
  --primary-bg: #E8F4FD;
  --secondary: #FFD700;
  --secondary-dark: #B8960F;
  --accent: #C4272F;
  --accent-light: #FDE8E8;
  --white: #FFFFFF;
  --gray-50: #F8FAFC;
  --gray-100: #F3F4F6;
  --gray-200: #E5E7EB;
  --gray-300: #D1D5DB;
  --gray-600: #4B5563;
  --gray-700: #374151;
  --gray-800: #1F2937;
  --gray-900: #0F172A;
  --success: #22C55E;
  --warning: #F59E0B;
  --error: #EF4444;
  --info: #3B82F6;
  --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.1), 0 4px 6px rgba(0,0,0,0.05);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.2s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Noto Sans', sans-serif;
  color: var(--gray-800);
  background: var(--gray-50);
  line-height: 1.6;
  min-height: 100vh;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

img {
  max-width: 100%;
}

/* === Navbar === */
.navbar {
  background: var(--white);
  box-shadow: var(--shadow);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.navbar-transparent {
  background: transparent;
  box-shadow: none;
}

.navbar-transparent .nav-brand {
  color: var(--white);
}

.navbar-transparent .nav-brand .brand-sub {
  color: rgba(255,255,255,0.7);
}

.navbar-transparent .nav-links a {
  color: var(--white);
}

.navbar-transparent .nav-links a:hover,
.navbar-transparent .nav-links a.active {
  background: rgba(255,255,255,0.15);
  color: var(--white);
}

.navbar-transparent .menu-toggle {
  color: var(--white);
}

body {
  padding-top: 64px;
}

.navbar .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--primary);
  text-decoration: none;
}

.nav-brand:hover {
  text-decoration: none;
}

.nav-brand .brand-text {
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.nav-brand .brand-sub {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--gray-600);
}

.nav-flag {
  font-size: 1.4rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.nav-links a {
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  color: var(--gray-700);
  font-weight: 500;
  font-size: 0.9rem;
  transition: background var(--transition), color var(--transition);
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a.active {
  background: var(--primary-bg);
  color: var(--primary);
  text-decoration: none;
}

.lang-btn {
  background: var(--primary);
  color: var(--white) !important;
  border: none;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
  transition: background var(--transition);
}

.lang-btn:hover {
  background: var(--primary-dark);
  text-decoration: none !important;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--gray-700);
  padding: 4px;
}

/* === Hero Slideshow === */
.hero {
  position: relative;
  height: 100vh;
  margin-top: -64px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-slide {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.5s ease-in-out;
}

.hero-slide.active {
  opacity: 1;
}

/* 1. Seoul night skyline */
.hero-slide[data-slide="0"] {
  background-image: url('../images/hero-seoul-night.jpg');
}

/* 2. Ulaanbaatar Sukhbaatar Square */
.hero-slide[data-slide="1"] {
  background-image: url('../images/hero-sukhbaatar.jpg');
}

/* 3. Seoul Yonsei University campus */
.hero-slide[data-slide="2"] {
  background-image: url('../images/hero-campus.jpg');
}

/* 4. Mongolia night cityscape */
.hero-slide[data-slide="3"] {
  background-image: url('../images/hero-mongolia-night.jpg');
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.45);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--white);
  padding: 0 20px;
  padding-top: 64px;
  max-width: 800px;
}

.hero h1 {
  font-size: 2.8rem;
  margin-bottom: 16px;
  font-weight: 800;
  letter-spacing: -0.5px;
  text-shadow: 0 2px 8px rgba(0,0,0,0.4);
}

.hero p {
  font-size: 1.3rem;
  opacity: 0.95;
  margin-bottom: 36px;
  text-shadow: 0 1px 4px rgba(0,0,0,0.3);
}

.hero-cta {
  display: inline-block;
  background: var(--secondary);
  color: var(--gray-900);
  padding: 14px 36px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1.1rem;
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
}

.hero-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(255,215,0,0.4);
  text-decoration: none;
}

.hero-indicators {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  gap: 10px;
}

.hero-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
  cursor: pointer;
  transition: background 0.3s ease, transform 0.3s ease;
  border: 2px solid rgba(255,255,255,0.6);
}

.hero-dot.active {
  background: var(--white);
  transform: scale(1.2);
}

.hero-dot:hover {
  background: rgba(255,255,255,0.8);
}

/* === Stats Section === */
.stats-section {
  background: var(--white);
  padding: 60px 0;
  border-bottom: 1px solid var(--gray-200);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.stat-card {
  text-align: center;
  padding: 24px 16px;
  border-radius: var(--radius);
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  transition: transform var(--transition), box-shadow var(--transition);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}

.stat-number {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--gray-600);
  font-weight: 500;
}

.stat-source {
  font-size: 0.75rem;
  color: var(--gray-300);
  margin-top: 4px;
}

/* === Page Header (sub pages) === */
.page-header {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: var(--white);
  text-align: center;
  padding: 50px 20px;
  position: relative;
}

.page-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--secondary), var(--primary-light));
}

.page-header h1 {
  font-size: 2rem;
  font-weight: 700;
}

/* === Container === */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* === Section === */
.section {
  padding: 60px 0;
}

.section-title {
  text-align: center;
  font-size: 1.6rem;
  color: var(--gray-900);
  margin-bottom: 40px;
  font-weight: 700;
}

/* === Cards Grid === */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px 24px;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  text-decoration: none;
  color: inherit;
  display: block;
  border: 1px solid var(--gray-200);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--primary);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.card:hover::before {
  transform: scaleX(1);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  text-decoration: none;
  border-color: var(--primary);
}

.card h3 {
  font-size: 1.2rem;
  margin-bottom: 12px;
  color: var(--gray-900);
}

.card p {
  color: var(--gray-600);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* === Quick Links === */
.quick-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.quick-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 50px;
  color: var(--gray-700);
  font-weight: 500;
  font-size: 0.95rem;
  transition: all var(--transition);
}

.quick-link:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-bg);
  text-decoration: none;
}

/* === Emergency Banner === */
.emergency-banner {
  background: var(--accent-light);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-top: 40px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.emergency-banner h3 {
  color: var(--accent);
  font-size: 1.1rem;
  margin-bottom: 12px;
}

.emergency-numbers {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.emergency-item {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--white);
  padding: 8px 16px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--gray-800);
}

.emergency-item .num {
  color: var(--accent);
  font-size: 1.1rem;
}

/* === Accordion === */
.accordion {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.accordion-item {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--gray-200);
  overflow: hidden;
  transition: border-color var(--transition);
}

.accordion-item:hover {
  border-color: var(--primary);
}

.accordion-item.active {
  border-color: var(--primary);
}

.accordion-header {
  padding: 20px 24px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  user-select: none;
}

.accordion-header:hover {
  background: var(--gray-50);
}

.accordion-header-text h3 {
  font-size: 1.1rem;
  color: var(--gray-900);
  margin-bottom: 4px;
}

.accordion-header-text p {
  font-size: 0.85rem;
  color: var(--gray-600);
}

.accordion-arrow {
  font-size: 1.2rem;
  color: var(--gray-600);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.accordion-item.active .accordion-arrow {
  transform: rotate(180deg);
  color: var(--primary);
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.accordion-item.active .accordion-body {
  max-height: 2000px;
}

.accordion-content {
  padding: 0 24px 24px;
  color: var(--gray-700);
  line-height: 1.8;
}

.accordion-content h4 {
  color: var(--gray-900);
  margin: 16px 0 10px;
  font-size: 1.05rem;
}

.accordion-content h4:first-child {
  margin-top: 0;
}

.accordion-content ul,
.accordion-content ol {
  padding-left: 20px;
  margin: 8px 0;
}

.accordion-content li {
  margin-bottom: 6px;
}

.accordion-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0;
  font-size: 0.9rem;
}

.accordion-content th,
.accordion-content td {
  border: 1px solid var(--gray-200);
  padding: 10px 12px;
  text-align: left;
}

.accordion-content th {
  background: var(--primary-bg);
  color: var(--primary-dark);
  font-weight: 600;
}

.accordion-content tr:nth-child(even) {
  background: var(--gray-50);
}

.accordion-content a {
  color: var(--primary);
  font-weight: 500;
}

/* === Comparison Table === */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 0.9rem;
}

.comparison-table th,
.comparison-table td {
  border: 1px solid var(--gray-200);
  padding: 12px 16px;
  text-align: center;
}

.comparison-table th {
  background: var(--primary);
  color: var(--white);
  font-weight: 600;
}

.comparison-table tr:nth-child(even) {
  background: var(--gray-50);
}

.comparison-table tr:last-child {
  background: var(--primary-bg);
  font-weight: 600;
}

/* === Footer === */
.footer {
  background: var(--gray-900);
  color: var(--gray-300);
  text-align: center;
  padding: 40px 20px;
  margin-top: 40px;
  font-size: 0.9rem;
}

.footer-brand {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
}

.footer-flags {
  font-size: 1.5rem;
  margin-bottom: 8px;
  letter-spacing: 8px;
}

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

.footer-links a {
  color: var(--gray-300);
  font-size: 0.85rem;
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--secondary);
  text-decoration: none;
}

.footer-offices {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.footer-office {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.85rem;
}

.footer-office strong {
  color: var(--white);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer-office span {
  color: var(--gray-300);
}

/* === Responsive === */
@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 16px;
    box-shadow: var(--shadow-md);
    gap: 4px;
  }

  .nav-links.active {
    display: flex;
  }

  .nav-links a {
    padding: 12px 16px;
    width: 100%;
  }

  .hero h1 {
    font-size: 1.8rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .navbar-transparent .nav-links {
    background: rgba(0,0,0,0.85);
  }

  .hero-indicators {
    bottom: 20px;
  }

  .page-header {
    padding: 36px 20px;
  }

  .page-header h1 {
    font-size: 1.5rem;
  }

  .section {
    padding: 40px 0;
  }

  .section-title {
    font-size: 1.3rem;
    margin-bottom: 24px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .stat-number {
    font-size: 1.6rem;
  }

  .cards-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .card {
    padding: 24px 20px;
  }

  .accordion-header {
    padding: 16px;
  }

  .accordion-content {
    padding: 0 16px 16px;
  }

  .accordion-content table {
    font-size: 0.8rem;
  }

  .accordion-content th,
  .accordion-content td {
    padding: 6px 8px;
  }

  .emergency-numbers {
    gap: 8px;
  }

  .emergency-item {
    font-size: 0.8rem;
    padding: 6px 12px;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.5rem;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .stat-card {
    padding: 16px 12px;
  }

  .stat-number {
    font-size: 1.4rem;
  }

  .quick-link {
    font-size: 0.85rem;
    padding: 8px 14px;
  }
}

/* === 404 Error Page === */
.error-page {
  text-align: center;
  padding: 80px 20px;
  min-height: 50vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.error-code {
  font-size: 6rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 16px;
}

.error-page h1 {
  font-size: 1.8rem;
  color: var(--gray-900);
  margin-bottom: 12px;
}

.error-page p {
  color: var(--gray-600);
  font-size: 1.1rem;
  margin-bottom: 32px;
  max-width: 500px;
}

@media (max-width: 768px) {
  .error-code {
    font-size: 4rem;
  }
  .error-page h1 {
    font-size: 1.4rem;
  }
}

/* === News Section === */
.news-section {
  padding: 50px 0 30px;
  background: var(--gray-50);
}

.news-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 900px;
  margin: 0 auto;
}

.news-list-full {
  max-width: 100%;
}

.news-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 20px 24px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.news-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.news-card.news-urgent {
  border-left: 4px solid var(--error);
  background: #FFFBFB;
}

.news-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
  gap: 12px;
}

.news-category-tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
}

.news-date {
  font-size: 0.8rem;
  color: var(--gray-300);
  white-space: nowrap;
}

.news-card-title {
  font-size: 1.05rem;
  color: var(--gray-900);
  margin-bottom: 0;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.news-card-arrow {
  font-size: 0.75rem;
  color: var(--gray-400);
  transition: transform 0.25s ease;
  margin-left: 8px;
  flex-shrink: 0;
}

.news-card-open .news-card-arrow {
  transform: rotate(180deg);
}

.news-card-content {
  font-size: 0.9rem;
  color: var(--gray-600);
  line-height: 1.6;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, margin 0.3s ease;
  margin-top: 0;
}

.news-card-open .news-card-content {
  max-height: 300px;
  margin-top: 10px;
}

.news-more-wrap {
  text-align: center;
  margin-top: 20px;
}

.news-more-link {
  display: inline-block;
  padding: 10px 28px;
  border: 1px solid var(--primary);
  border-radius: 50px;
  color: var(--primary);
  font-weight: 600;
  font-size: 0.9rem;
  transition: all var(--transition);
}

.news-more-link:hover {
  background: var(--primary);
  color: var(--white);
  text-decoration: none;
}

/* Urgent banner */
.news-urgent-banner {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: var(--accent-light);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  padding: 16px 20px;
}

.news-urgent-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  background: var(--accent);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.9rem;
}

.news-urgent-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.news-urgent-text strong {
  color: var(--accent);
  font-size: 0.95rem;
}

.news-urgent-text span {
  font-size: 0.85rem;
  color: var(--gray-700);
}

.news-banner-detail {
  font-size: 0.85rem;
  color: var(--gray-600);
  line-height: 1.6;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, margin 0.3s ease, padding 0.3s ease;
}

.news-banner-open .news-banner-detail {
  max-height: 300px;
  margin-top: 8px;
}

.news-source {
  margin-top: 8px;
  font-size: 0.8rem;
  color: var(--gray-400);
}

.news-source a {
  color: var(--primary);
  text-decoration: none;
}

.news-source a:hover {
  text-decoration: underline;
}

/* Related news banner (service pages) */
.news-related-container {
  margin-top: 16px;
  margin-bottom: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.news-related-banner {
  background: var(--primary-bg);
  border: 1px solid #B8D4F0;
  border-radius: var(--radius-sm);
  padding: 12px 20px;
  transition: border-color var(--transition);
}

.news-related-banner:hover {
  border-color: var(--primary);
}

.news-related-banner.news-related-urgent {
  background: var(--accent-light);
  border-color: var(--accent);
}

.news-related-content {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.news-related-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--gray-800);
  flex: 1;
}

/* News filters */
.news-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 32px;
}

.news-filter-btn {
  padding: 8px 20px;
  border: 1px solid var(--gray-200);
  border-radius: 50px;
  background: var(--white);
  color: var(--gray-700);
  font-weight: 500;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition);
}

.news-filter-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.news-filter-btn.active {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

.news-empty {
  text-align: center;
  color: var(--gray-300);
  padding: 40px 20px;
  font-size: 1rem;
}

@media (max-width: 768px) {
  .news-card {
    padding: 16px;
  }

  .news-card-title {
    font-size: 0.95rem;
  }

  .news-related-content {
    gap: 8px;
  }

  .news-filters {
    gap: 6px;
  }

  .news-filter-btn {
    padding: 6px 14px;
    font-size: 0.8rem;
  }
}

/* === Community Board === */
.board-container {
  max-width: 960px;
  margin: 0 auto;
}

.board-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.board-categories {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.board-cat-btn {
  padding: 6px 16px;
  border: 1px solid var(--gray-200);
  border-radius: 50px;
  background: var(--white);
  color: var(--gray-700);
  font-weight: 500;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all var(--transition);
}

.board-cat-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.board-cat-btn.active {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

.board-write-btn {
  padding: 8px 24px;
  background: var(--primary);
  color: var(--white);
  border: none;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background var(--transition);
  white-space: nowrap;
}

.board-write-btn:hover {
  background: var(--primary-dark);
}

/* Board Table */
.board-table-wrap {
  overflow-x: auto;
}

.board-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.board-table th {
  background: var(--gray-100);
  color: var(--gray-700);
  font-weight: 600;
  padding: 12px 10px;
  border-bottom: 2px solid var(--gray-300);
  text-align: center;
  white-space: nowrap;
}

.board-table td {
  padding: 12px 10px;
  border-bottom: 1px solid var(--gray-200);
  text-align: center;
  color: var(--gray-700);
}

.board-row {
  cursor: pointer;
  transition: background var(--transition);
}

.board-row:hover {
  background: var(--primary-bg);
}

.col-no { width: 50px; }
.col-cat { width: 90px; }
.col-title { text-align: left !important; font-weight: 500; color: var(--gray-900) !important; }
.col-author { width: 80px; }
.col-date { width: 90px; font-size: 0.82rem; }
.col-views { width: 55px; font-size: 0.82rem; }

.cat-tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 50px;
  font-size: 0.72rem;
  font-weight: 600;
  white-space: nowrap;
}

.cat-free { background: #E0F2FE; color: #0369A1; }
.cat-question { background: #FEF3C7; color: #92400E; }
.cat-info { background: #D1FAE5; color: #065F46; }
.cat-job { background: #EDE9FE; color: #5B21B6; }
.cat-trade { background: #FFE4E6; color: #9F1239; }

.comment-count {
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 600;
  margin-left: 4px;
}

.board-empty {
  text-align: center;
  color: var(--gray-300);
  padding: 60px 20px;
  font-size: 1rem;
}

/* Board Pagination */
.board-pagination {
  display: flex;
  justify-content: center;
  gap: 4px;
  margin-top: 24px;
}

.pag-btn {
  width: 36px;
  height: 36px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  background: var(--white);
  color: var(--gray-700);
  font-weight: 500;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.pag-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.pag-btn.active {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

/* Board Detail */
.board-detail {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  overflow: hidden;
}

.board-detail-header {
  padding: 24px;
  border-bottom: 1px solid var(--gray-200);
}

.board-detail-cat {
  margin-bottom: 8px;
  display: inline-block;
}

.board-detail-header h2 {
  font-size: 1.3rem;
  color: var(--gray-900);
  margin: 8px 0 12px;
  line-height: 1.4;
}

.board-detail-meta {
  display: flex;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--gray-600);
  flex-wrap: wrap;
}

.board-detail-content {
  padding: 24px;
  min-height: 200px;
  line-height: 1.8;
  color: var(--gray-700);
  font-size: 0.95rem;
}

.board-detail-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  border-top: 1px solid var(--gray-200);
  background: var(--gray-50);
}

.board-detail-btns {
  display: flex;
  gap: 8px;
}

/* Board Comments */
.board-comments {
  margin-top: 24px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 24px;
}

.board-comments h3 {
  font-size: 1.05rem;
  color: var(--gray-900);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--gray-200);
}

.comment-item {
  padding: 12px 0;
  border-bottom: 1px solid var(--gray-100);
}

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

.comment-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.comment-header strong {
  font-size: 0.9rem;
  color: var(--gray-800);
}

.comment-date {
  font-size: 0.78rem;
  color: var(--gray-300);
}

.comment-body {
  font-size: 0.9rem;
  color: var(--gray-700);
  line-height: 1.6;
}

.no-comments {
  text-align: center;
  color: var(--gray-300);
  padding: 20px;
  font-size: 0.9rem;
}

.board-comment-form {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--gray-200);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.board-comment-form input,
.board-comment-form textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-family: inherit;
  transition: border-color var(--transition);
}

.board-comment-form input:focus,
.board-comment-form textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.board-comment-form button {
  align-self: flex-end;
}

/* Board Write Form */
.board-form {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 32px 24px;
}

#board-write-view h2 {
  font-size: 1.3rem;
  color: var(--gray-900);
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--gray-800);
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-family: inherit;
  transition: border-color var(--transition);
  background: var(--white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.form-group small {
  display: block;
  margin-top: 4px;
  font-size: 0.78rem;
  color: var(--gray-600);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 24px;
}

/* Buttons */
.btn-primary {
  padding: 10px 24px;
  background: var(--primary);
  color: var(--white);
  border: none;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background var(--transition);
}

.btn-primary:hover {
  background: var(--primary-dark);
}

.btn-secondary {
  padding: 10px 24px;
  background: var(--white);
  color: var(--gray-700);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-secondary:hover {
  border-color: var(--gray-600);
  color: var(--gray-900);
}

.btn-edit {
  padding: 8px 20px;
  background: var(--white);
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-edit:hover {
  background: var(--accent-light);
}

.btn-delete {
  padding: 8px 20px;
  background: var(--white);
  color: var(--error);
  border: 1px solid var(--error);
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-delete:hover {
  background: #FEF2F2;
}

/* Password Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.5);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-content {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px;
  max-width: 400px;
  width: 100%;
  box-shadow: var(--shadow-lg);
}

.modal-content h3 {
  font-size: 1.1rem;
  color: var(--gray-900);
  margin-bottom: 16px;
}

.modal-content input {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  margin-bottom: 8px;
}

.modal-content input:focus {
  outline: none;
  border-color: var(--primary);
}

.modal-error {
  color: var(--error);
  font-size: 0.85rem;
  margin-bottom: 8px;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 16px;
}

/* Accordion subtitle (for grouped sections) */
.accordion-subtitle {
  font-size: 1.15rem;
  color: var(--primary);
  margin: 32px 0 16px;
  padding: 12px 0;
  border-bottom: 2px solid var(--primary-bg);
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

/* Board responsive */
@media (max-width: 768px) {
  .board-toolbar {
    flex-direction: column;
    gap: 12px;
  }

  .board-write-btn {
    align-self: flex-end;
  }

  .board-cat-btn {
    padding: 5px 12px;
    font-size: 0.78rem;
  }

  .board-table {
    font-size: 0.8rem;
  }

  .board-table th,
  .board-table td {
    padding: 8px 6px;
  }

  .col-no, .col-views { display: none; }
  .col-cat { width: 70px; }
  .col-author { width: 60px; }
  .col-date { width: 72px; }

  .board-detail-header {
    padding: 16px;
  }

  .board-detail-header h2 {
    font-size: 1.1rem;
  }

  .board-detail-content {
    padding: 16px;
  }

  .board-detail-actions {
    padding: 12px 16px;
    flex-wrap: wrap;
    gap: 8px;
  }

  .board-comments {
    padding: 16px;
  }

  .board-form {
    padding: 20px 16px;
  }

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