/* ========== Blog Archive Hero ========== */
.blog-hero {
  background:
    radial-gradient(ellipse at 30% 30%, var(--accent-glass) 0%, transparent 70%),
    radial-gradient(ellipse at 70% 70%, color-mix(in srgb, var(--accent-secondary) 8%, transparent) 0%, transparent 70%),
    linear-gradient(135deg, var(--surface) 0%, var(--bg) 100%);
  padding: 4rem 0.75rem 3rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  min-height: 50vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.blog-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%234361ee' fill-opacity='0.03'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  animation: patternMove 20s linear infinite;
  opacity: 0.5;
}

.blog-hero-content { max-width: 900px; margin: 0 auto; position: relative; z-index: 1; }

.blog-hero-title {
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 2rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  background-size: 300% 300%;
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: heroGradient 8s ease-in-out infinite, heroFloat 6s ease-in-out infinite;
  position: relative;
  letter-spacing: -0.02em;
}

.blog-hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 700px;
  margin: 0 auto;
  opacity: 0;
  animation: heroSubtitleFadeIn 1.2s ease-out 0.8s forwards;
  font-weight: 400;
}

.blog-hero-stats {
  display: flex;
  justify-content: center;
  gap: 3rem;
  margin-top: 3rem;
  opacity: 0;
  animation: heroStatsFadeIn 1.2s ease-out 1.2s forwards;
}

.hero-stat {
  text-align: center;
  padding: 1.5rem;
  background: var(--surface);
  border-radius: var(--border-radius);
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: var(--transition-bounce);
}

.hero-stat:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 40px var(--shadow-hover);
  background: var(--accent-glass);
}

.hero-stat-number { font-size: 1.5rem; font-weight: 800; color: var(--accent); display: block; margin-bottom: 0.5rem; }
.hero-stat-label { font-size: 0.875rem; color: var(--text-secondary); font-weight: 500; }

/* ========== Filters ========== */
.blog-filters {
  padding: 1.5rem 0;
  position: relative;
  z-index: 100;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.formal-filter-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.formal-filter-label { font-size: 0.95rem; color: var(--text-secondary); font-weight: 600; letter-spacing: 0.02em; }

.custom-select { position: relative; width: 280px; }

.select-trigger {
  width: 100%;
  padding: 0.75rem 1.25rem;
  background: var(--surface-2);
  border: 2px solid var(--border);
  border-radius: var(--border-radius);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  transition: var(--transition);
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 500;
  font-family: inherit;
}

.select-trigger:hover,
.custom-select.open .select-trigger {
  border-color: var(--accent);
  background: var(--surface);
  box-shadow: 0 4px 12px var(--shadow-hover);
}

.select-icon { display: flex; align-items: center; color: var(--text-secondary); transition: transform 0.3s ease; }
.custom-select.open .select-icon { transform: rotate(180deg); color: var(--accent); }

.select-options {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--border-radius);
  box-shadow: 0 10px 30px var(--shadow-hover);
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1000;
  max-height: 300px;
  overflow-y: auto;
}

.custom-select.open .select-options { opacity: 1; visibility: visible; transform: translateY(0); }

.select-option {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1.25rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease;
  border-bottom: 1px solid var(--border);
}

.select-option:last-child { border-bottom: none; }
.select-option:hover { background: var(--surface-2); color: var(--accent); }
.select-option.active { background: var(--accent-glass); color: var(--accent); font-weight: 600; }

.option-count {
  background: var(--surface-2);
  color: var(--muted);
  font-size: 0.75rem;
  padding: 0.15rem 0.5rem;
  border-radius: 12px;
  transition: var(--transition);
}

.select-option:hover .option-count,
.select-option.active .option-count { background: var(--accent); color: white; }

/* ========== Blog Content & Cards ========== */
.blog-content { padding: 5rem 0; background: var(--bg); }

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
  gap: 2.5rem;
  margin-top: 3rem;
}

.blog-card {
  width: 20rem;
  background: var(--surface);
  border-radius: var(--border-radius-large);
  padding: 0;
  margin: auto;
  box-shadow: 0 8px 32px var(--shadow);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  min-height: 500px;
  cursor: pointer;
}

.blog-card:hover { transform: translateY(-5px); box-shadow: 0 15px 40px var(--shadow-hover); border-color: var(--accent); }

.blog-card-image {
  width: 100%;
  height: 240px;
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius-large) var(--border-radius-large) 0 0;
}

.blog-card-image img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
.blog-card:hover .blog-card-image img { transform: scale(1.05); }

.blog-card-category {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  color: white;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 4px 16px var(--accent-glow);
}

.blog-card-featured {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: #fbbc04;
  color: white;
  padding: 0.4rem 0.8rem;
  border-radius: var(--border-radius);
  font-weight: 700;
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.blog-card-content { padding: 2rem; flex-grow: 1; display: flex; flex-direction: column; position: relative; z-index: 1; }

.blog-card-meta { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; font-size: 0.875rem; color: var(--text-secondary); }
.blog-card-date { display: flex; align-items: center; gap: 0.5rem; font-weight: 500; }
.blog-card-stats { display: flex; align-items: center; gap: 1rem; }
.card-stat { display: flex; align-items: center; gap: 0.25rem; color: var(--muted); }

.blog-card-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 1rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: var(--transition);
}

.blog-card:hover .blog-card-title { color: var(--accent); }

.blog-card-excerpt {
  color: var(--text-secondary);
  line-height: 1.6;
  font-size: 1rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex-grow: 1;
  margin-bottom: 1.5rem;
}

.blog-card-footer { display: flex; justify-content: space-between; align-items: center; padding-top: 1rem; border-top: 1px solid var(--border); margin-top: auto; }

.blog-card-author { display: flex; align-items: center; gap: 0.75rem; font-size: 0.875rem; color: var(--text-secondary); font-weight: 500; }

.author-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 0.875rem;
}

.blog-card-cta {
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  color: white;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: var(--border-radius);
  font-weight: 600;
  font-size: 0.875rem;
  cursor: pointer;
  transition: var(--transition-bounce);
  position: relative;
  overflow: hidden;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  box-shadow: 0 4px 16px var(--accent-glow);
}

.blog-card-cta:hover,
.blog-card-cta:focus {
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 8px 25px var(--accent-glow);
}

/* Pagination */
.blog-pagination { display: flex; justify-content: center; align-items: center; gap: 0.75rem; margin-top: 4rem; flex-wrap: wrap; }

.pagination-btn {
  padding: 0.875rem 1.25rem;
  border: 2px solid var(--border);
  border-radius: var(--border-radius);
  background: var(--surface);
  color: var(--text);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-bounce);
  min-width: 48px;
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 2px 8px var(--shadow);
}

.pagination-btn:hover:not(:disabled),
.pagination-btn:focus:not(:disabled) {
  border-color: var(--accent);
  background: var(--accent);
  color: white;
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 8px 20px var(--accent-glow);
}

.pagination-btn.active { border-color: var(--accent); background: linear-gradient(135deg, var(--accent), var(--accent-hover)); color: white; box-shadow: 0 4px 16px var(--accent-glow); }
.pagination-btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none !important; box-shadow: 0 2px 8px var(--shadow) !important; }

/* Loading */
.blog-loading { display: flex; justify-content: center; align-items: center; min-height: 400px; flex-direction: column; gap: 2rem; }
.loading-spinner { width: 60px; height: 60px; border: 4px solid var(--surface-3); border-top-color: var(--accent); border-radius: 50%; animation: spin 1s linear infinite; }
.loading-text { color: var(--text-secondary); font-weight: 600; font-size: 1.125rem; text-align: center; }

/* Dark & Print */
[data-theme="dark"] .blog-card { box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6); }
[data-theme="dark"] .blog-card:hover { box-shadow: 0 15px 40px rgba(0, 0, 0, 0.8); }
[data-theme="dark"] .hero-stat { background: color-mix(in srgb, var(--surface) 80%, transparent); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); }

@media print {
  .blog-filters { display: none !important; }
  .blog-hero { padding: 2rem 1rem !important; min-height: auto !important; }
  .blog-card { break-inside: avoid; margin-bottom: 2rem; box-shadow: none !important; border: 1px solid #ccc !important; }
}

/* ========== Responsive (Blog) ========== */
@media (max-width: 1200px) {
  .blog-grid { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; }
}

@media (max-width: 768px) {
  .blog-hero { padding: 6rem 1rem 3rem; min-height: auto; }
  .blog-hero-title { font-size: 2.2rem; }
  .blog-hero-stats { flex-direction: column; gap: 1rem; max-width: 280px; margin: 2rem auto 0; }
  .blog-filters { top: var(--header-height-mobile); padding: 1rem 0; }
  .blog-card { min-height: auto; }
  .blog-card-image { height: 200px; }
}