/* 블로그 공통 스타일 - 개선된 버전 */
:root {
  --blog-primary: #130CBA;
  --blog-secondary: #6c5ce7;
  --blog-accent: #a29bfe;
  --blog-bg: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --blog-card-shadow: 0 10px 40px rgba(0,0,0,0.1);
  --blog-hover-shadow: 0 15px 50px rgba(19, 12, 186, 0.2);
}

.blog_page {
  padding-top: 100px;
  background: linear-gradient(to bottom, #f8f9ff 0%, #ffffff 100%);
  min-height: 100vh;
  position: relative;
}

.blog_page::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 300px;
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
  z-index: 0;
}

.blog_container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 40px 20px;
  position: relative;
  z-index: 1;
}

/* 헤더 스타일 개선 */
.blog_header {
  background: linear-gradient(135deg, #ffffff 0%, #f8f9ff 100%);
  padding: 50px;
  border-radius: 20px;
  margin-bottom: 40px;
  box-shadow: var(--blog-card-shadow);
  border: 1px solid rgba(19, 12, 186, 0.1);
  position: relative;
  overflow: hidden;
}

.blog_header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: linear-gradient(90deg, var(--blog-primary) 0%, var(--blog-secondary) 100%);
}

.blog_header h1 {
  font-size: 42px;
  font-weight: 900;
  background: linear-gradient(135deg, var(--blog-primary) 0%, var(--blog-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 20px;
  line-height: 1.3;
  position: relative;
  z-index: 1;
}

.blog_meta {
  display: flex;
  gap: 25px;
  color: #666;
  font-size: 14px;
  margin-top: 25px;
  flex-wrap: wrap;
}

.blog_meta span {
  display: flex;
  align-items: center;
  gap: 8px;
}

.blog_meta span::before {
  content: '📅';
  font-size: 16px;
}

/* 콘텐츠 영역 개선 */
.blog_content {
  background: #fff;
  padding: 60px 50px;
  border-radius: 20px;
  box-shadow: var(--blog-card-shadow);
  line-height: 1.9;
  font-size: 17px;
  color: #2c3e50;
  position: relative;
  border: 1px solid rgba(19, 12, 186, 0.05);
}

.blog_content::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--blog-primary) 0%, var(--blog-secondary) 100%);
  border-radius: 20px 0 0 20px;
}

.blog_content h2 {
  font-size: 32px;
  font-weight: 800;
  background: linear-gradient(135deg, #1f2542 0%, var(--blog-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: 50px 0 25px;
  padding-bottom: 15px;
  position: relative;
}

.blog_content h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--blog-primary) 0%, var(--blog-secondary) 100%);
  border-radius: 2px;
}

.blog_content h3 {
  font-size: 24px;
  font-weight: 700;
  color: #2c3e50;
  margin: 35px 0 18px;
  position: relative;
  padding-left: 15px;
}

.blog_content h3::before {
  content: '▶';
  position: absolute;
  left: 0;
  color: var(--blog-primary);
  font-size: 16px;
}

.blog_content p {
  margin-bottom: 22px;
  text-align: justify;
  color: #444;
}

.blog_content ul, .blog_content ol {
  margin: 25px 0;
  padding-left: 35px;
}

.blog_content li {
  margin-bottom: 15px;
  position: relative;
  padding-left: 10px;
}

.blog_content ul li::marker {
  color: var(--blog-primary);
  font-weight: bold;
}

.blog_content strong {
  color: var(--blog-primary);
  font-weight: 700;
  background: linear-gradient(120deg, rgba(19, 12, 186, 0.1) 0%, rgba(19, 12, 186, 0.05) 100%);
  padding: 2px 6px;
  border-radius: 4px;
}

/* 하이라이트 박스 개선 */
.blog_highlight {
  background: linear-gradient(135deg, rgba(19, 12, 186, 0.08) 0%, rgba(108, 92, 231, 0.08) 100%);
  padding: 30px;
  border-left: 5px solid var(--blog-primary);
  margin: 35px 0;
  border-radius: 12px;
  position: relative;
  box-shadow: 0 4px 15px rgba(19, 12, 186, 0.1);
}

.blog_highlight::before {
  content: '💡';
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 24px;
  opacity: 0.3;
}

.blog_highlight strong {
  display: block;
  font-size: 18px;
  margin-bottom: 12px;
  color: var(--blog-primary);
}

/* 특별 박스 스타일 */
.info_box, .tip_box, .warning_box, .stat_box {
  padding: 30px;
  border-radius: 15px;
  margin: 30px 0;
  position: relative;
  overflow: hidden;
  box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

.info_box {
  background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
  border-left: 5px solid #2196f3;
}

.tip_box {
  background: linear-gradient(135deg, #f3e5f5 0%, #e1bee7 100%);
  border-left: 5px solid #9c27b0;
}

.warning_box {
  background: linear-gradient(135deg, #fff3e0 0%, #ffe0b2 100%);
  border-left: 5px solid #ff9800;
}

.stat_box {
  background: linear-gradient(135deg, #e8f5e9 0%, #c8e6c9 100%);
  border-left: 5px solid #4caf50;
  text-align: center;
}

.stat_box .stat_number {
  font-size: 48px;
  font-weight: 900;
  color: #2e7d32;
  display: block;
  margin: 10px 0;
}

.stat_box .stat_label {
  font-size: 16px;
  color: #555;
  font-weight: 600;
}

/* 테이블 스타일 개선 */
.blog_content table {
  width: 100%;
  border-collapse: collapse;
  margin: 30px 0;
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.blog_content table th {
  background: linear-gradient(135deg, var(--blog-primary) 0%, var(--blog-secondary) 100%);
  color: #fff;
  padding: 18px;
  text-align: left;
  font-weight: 700;
  font-size: 16px;
}

.blog_content table td {
  padding: 18px;
  border-bottom: 1px solid #eee;
  transition: background 0.3s;
}

.blog_content table tr:hover td {
  background: rgba(19, 12, 186, 0.05);
}

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

/* 관련 링크 섹션 개선 */
.blog_links {
  background: linear-gradient(135deg, #ffffff 0%, #f8f9ff 100%);
  padding: 40px;
  border-radius: 20px;
  margin-top: 50px;
  box-shadow: var(--blog-card-shadow);
  border: 1px solid rgba(19, 12, 186, 0.1);
}

.blog_links h3 {
  font-size: 26px;
  margin-bottom: 25px;
  color: #1f2542;
  font-weight: 800;
  position: relative;
  padding-bottom: 15px;
}

.blog_links h3::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 50px;
  height: 3px;
  background: linear-gradient(90deg, var(--blog-primary) 0%, var(--blog-secondary) 100%);
  border-radius: 2px;
}

.blog_links ul {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 15px;
}

.blog_links li {
  margin: 0;
  padding: 0;
}

.blog_links a {
  display: block;
  padding: 15px 20px;
  color: var(--blog-primary);
  text-decoration: none;
  font-weight: 600;
  border-radius: 10px;
  background: #fff;
  border: 2px solid rgba(19, 12, 186, 0.1);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.blog_links a::before {
  content: '→';
  position: absolute;
  right: 20px;
  opacity: 0;
  transition: all 0.3s;
}

.blog_links a:hover {
  background: linear-gradient(135deg, var(--blog-primary) 0%, var(--blog-secondary) 100%);
  color: #fff;
  transform: translateX(5px);
  box-shadow: 0 5px 15px rgba(19, 12, 186, 0.3);
  border-color: transparent;
}

.blog_links a:hover::before {
  opacity: 1;
  right: 15px;
}

/* 반응형 디자인 */
@media (max-width: 768px) {
  .blog_header {
    padding: 30px 20px;
  }
  
  .blog_header h1 {
    font-size: 28px;
  }
  
  .blog_content {
    padding: 30px 20px;
  }
  
  .blog_content h2 {
    font-size: 24px;
  }
  
  .blog_content h3 {
    font-size: 20px;
  }
  
  .blog_links ul {
    grid-template-columns: 1fr;
  }
  
  .stat_box .stat_number {
    font-size: 36px;
  }
}

/* 애니메이션 효과 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.blog_header,
.blog_content,
.blog_links {
  animation: fadeInUp 0.6s ease-out;
}

/* 스크롤 인디케이터 */
.scroll_indicator {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, var(--blog-primary) 0%, var(--blog-secondary) 100%);
  z-index: 9999;
  transition: width 0.1s;
}