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


:root{
 --bg: #f6f7fb;
  --card: #ffffff;
  --border: #e4e7ec;
  --text-main: #101828;
  --text-muted: #121315;
  --accent: #2563eb;
  --tag-bg: #eef4ff;
  --tag-text: #3554d1;

  
  --fs-xxxl: clamp(2.4rem, 4vw, 3rem);      
  --fs-xxl: clamp(2rem, 3.2vw, 2.5rem);      
  --fs-xl: 1.9rem;                        

 
  --fs-lg: 1.25rem;                        
  --fs-1_2: 1.2rem;  

 
  --fs-md: 1.1rem;                          
  --fs-base: 1.5rem;                           
  --fs-sm: 1.2rem;                          
  --fs-xs: 0.82rem;                          
  --fs-tiny: 0.75rem;                        

 
  --fs-1_25: 1.25rem;             
  --fs-0_96: 0.96rem;             
  --fs-0_95: 0.95rem;
  --fs-0_88: 0.88rem;
  --fs-2_1: 2.1rem;               
  --fs-1_9: 1.9rem;              

 
  --fw-bold: 700;
  --fw-semibold: 600;
  --fw-medium: 500;
  --fw-normal: 400;

 
  --lh-hero-title: 1.1;
  --lh-title: 1.2;
  --lh-normal: 1.65;

}


body.dark {
  --bg: #020617;
  --card: #020617;
  --border: #1e293b;
  --text-main: #e5e7eb;
  --text-muted: #9ca3af;
  --tag-bg: #111827;
  --tag-text: #60a5fa;
}

body {
  font-family: "Inter", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text-main);
}


.blog-header {
  padding: 40px 20px 20px;
}

.blog-header-inner {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.blog-header h1 {
  font-size: 40px;
  margin-bottom: 4px;
}

.blog-header p {
  font-size: var(--fs-sm);
  color: var(--text-muted);
}

.theme-toggle {
  border-radius: 20px;
  border: 1px solid var(--border);
  padding: 8px 16px;
  background: var(--card);
  cursor: pointer;
  font-size: 14px;
}


.controls {
  width: 90%;
  max-width: 1200px;
  margin: 10px auto 30px;
  display: flex;
  gap: 20px;
  justify-content: space-between;
  flex-wrap: wrap;
}

#categoryFilter {
  padding: 12px 22px;
  border-radius: 35px;
  font-size: 15px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text-main);
  outline: none;
}

.search-box {
  position: relative;
}

.search-box input {
  padding: 12px 45px 12px 18px;
  border-radius: 35px;
  border: 1px solid var(--border);
  font-size: 15px;
  width: 280px;
  background: var(--card);
  color: var(--text-main);
  outline: none;
}

.search-box .search-icon {
  position: absolute;
  right: 16px;
  top: 10px;
  font-size: 18px;
  color: var(--text-muted);
}


.blog-list-wrapper {
  width: 90%;
  max-width: 1300px;
  margin: 0 auto 50px;
}

.blog-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}


.blog-card {
  background: var(--card);
  border-radius: 22px;
  border: 1px solid var(--border);
  padding: 26px;
  cursor: pointer;
  transform: translateY(6px);
  opacity: 0;
  transition: transform 0.25s ease, box-shadow 0.25s ease, opacity 0.45s ease;
}

.blog-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.blog-card:hover {
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.14);
}

.blog-date {
  font-size: 14px;
  color: var(--text-muted);
}

.blog-title {
  margin: 10px 0;
  font-size: var(--fs-base);
  font-weight: 700;
}

.blog-excerpt {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  margin-top: 4px;
}

.blog-author {
  margin-top: var(--fs-md);
  font-size: 14px;
  color: var(--text-muted);
}

.tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--tag-bg);
  color: var(--tag-text);
  border-radius: 8px;
  margin-top: 10px;
  font-size: var(--fs-md);
}


.pagination-wrapper {
  margin-top: 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.pagination {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.page-btn {
  min-width: 34px;
  height: 34px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card);
  cursor: pointer;
  font-size: 14px;
}

.page-btn.active {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

.load-more-btn {
  padding: 8px 20px;
  border-radius: 999px;
  border: none;
  background: var(--accent);
  color: white;
  cursor: pointer;
  font-size: 14px;
}

.load-more-btn[disabled] {
  opacity: 0.5;
  cursor: default;
}


@media (max-width: 768px) {
  .blog-header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .controls {
    flex-direction: column;
    align-items: stretch;
  }

  .search-box input {
    width: 100%;
  }

  .pagination-wrapper {
    flex-direction: column;
    align-items: flex-start;
  }
}