/* ============================================================
   BTT — Author Archive (Matching Single Post Style)
   Clean typography, system fonts first
   ============================================================ */

/* CSS Variables — Matching your single post */
:root {
  --btt-bg: #f8fafc;
  --btt-white: #ffffff;
  --btt-border: #e2e8f0;
  --btt-radius: 8px;
  --btt-radius-lg: 12px;
  --btt-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --btt-slate: #0f172a;
  --btt-blue: #2563eb;
  --btt-blue-lt: #3b82f6;
  --btt-muted: #64748b;
  --btt-green: #10b981;
  --btt-sky: #0ea5e9;
}

/* ===== TYPOGRAPHY — Matching your single post ===== */
.btt-author,
.btt-author * {
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
}

/* Content text uses system fonts for better readability */
.btt-author-bio,
.btt-post-excerpt,
.btt-tip-content,
.btt-author-meta span {
  font-family: system-ui, -apple-system, sans-serif;
}

/* Headings stay bold with Plus Jakarta Sans */
.btt-author-info h1,
.btt-post-title,
.btt-section-title,
.btt-stat-number,
.btt-topic-name {
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  font-weight: 800;
}

/* ===== MAIN CONTAINER ===== */
.btt-author {
  background: var(--btt-bg);
  min-height: 100vh;
}

.btt-author-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px 72px;
}

/* ===== AUTHOR HEADER ===== */
.btt-author-header {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 32px;
  background: var(--btt-white);
  border: 1px solid var(--btt-border);
  border-radius: var(--btt-radius-lg);
  box-shadow: var(--btt-shadow);
  padding: 32px;
  margin: 20px 0 24px;
}

.btt-author-avatar {
  flex-shrink: 0;
}

.btt-author-avatar img {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--btt-white);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.btt-author-info {
  flex: 1;
}

.btt-author-info h1 {
  font-size: 28px;
  font-weight: 800;
  color: var(--btt-slate);
  margin: 0 0 12px;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.btt-author-bio {
  font-size: 15px;
  color: var(--btt-muted);
  line-height: 1.6;
  margin-bottom: 16px;
  max-width: 600px;
}

.btt-author-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}

.btt-author-meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--btt-muted);
  background: #f1f5f9;
  padding: 5px 12px;
  border-radius: 20px;
}

.btt-author-social {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.btt-author-social a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--btt-radius);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  background: #f1f5f9;
  color: var(--btt-muted);
  transition: all 0.2s ease;
  font-family: system-ui, -apple-system, sans-serif;
}

.btt-author-social a:hover {
  background: var(--btt-blue);
  color: #fff;
}

/* ===== STATS CARDS ===== */
.btt-author-stats-cards {
  display: flex;
  gap: 16px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.btt-stat-card {
  flex: 1;
  min-width: 100px;
  background: var(--btt-white);
  border: 1px solid var(--btt-border);
  border-radius: var(--btt-radius-lg);
  padding: 20px 16px;
  text-align: center;
  transition: box-shadow 0.2s ease;
}

.btt-stat-card:hover {
  box-shadow: var(--btt-shadow);
}

.btt-stat-number {
  font-size: 32px;
  font-weight: 800;
  color: var(--btt-slate);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.btt-stat-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--btt-muted);
  margin-top: 6px;
  font-family: system-ui, -apple-system, sans-serif;
}

/* ===== TOPICS SECTION ===== */
.btt-author-topics {
  background: var(--btt-white);
  border: 1px solid var(--btt-border);
  border-radius: var(--btt-radius-lg);
  padding: 24px;
  margin-bottom: 32px;
}

.btt-section-title {
  font-size: 18px;
  font-weight: 800;
  color: var(--btt-slate);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
}

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

.btt-topic-card {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: #f8fafc;
  border: 1px solid var(--btt-border);
  border-radius: 30px;
  text-decoration: none;
  transition: all 0.2s ease;
  font-family: system-ui, -apple-system, sans-serif;
}

.btt-topic-card:hover {
  border-color: var(--btt-blue);
  background: #eff6ff;
  transform: translateY(-1px);
}

.btt-topic-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--btt-slate);
}

.btt-topic-count {
  font-size: 11px;
  font-weight: 700;
  color: var(--btt-muted);
  background: #fff;
  padding: 2px 7px;
  border-radius: 20px;
}

/* ===== TOOLBAR ===== */
.btt-author-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 15px;
  margin-bottom: 24px;
  padding: 12px 0;
  border-bottom: 2px solid var(--btt-border);
}

.btt-post-count {
  font-size: 13px;
  font-weight: 600;
  color: var(--btt-muted);
  font-family: system-ui, -apple-system, sans-serif;
}

.btt-post-count strong {
  color: var(--btt-slate);
  font-weight: 800;
}

.btt-sort-wrapper {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btt-sort-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--btt-muted);
  font-family: system-ui, -apple-system, sans-serif;
}

.btt-sort-select {
  font-family: system-ui, -apple-system, sans-serif;
  font-size: 13px;
  font-weight: 600;
  padding: 8px 28px 8px 12px;
  border: 1px solid var(--btt-border);
  border-radius: var(--btt-radius);
  background: var(--btt-white);
  color: var(--btt-slate);
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  transition: border-color 0.2s ease;
}

.btt-sort-select:focus {
  outline: none;
  border-color: var(--btt-blue);
}

/* ===== POSTS GRID ===== */
.btt-posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
  margin-bottom: 48px;
}

.btt-post-card {
  background: var(--btt-white);
  border: 1px solid var(--btt-border);
  border-radius: var(--btt-radius-lg);
  padding: 24px;
  transition: all 0.2s ease;
  position: relative;
}

.btt-post-card:hover {
  box-shadow: var(--btt-shadow);
  transform: translateY(-2px);
  border-color: #bfdbfe;
}

.btt-post-category {
  display: inline-block;
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--btt-blue);
  background: #eff6ff;
  padding: 4px 10px;
  border-radius: 20px;
  margin-bottom: 14px;
  font-family: system-ui, -apple-system, sans-serif;
}

.btt-post-title {
  font-size: 18px;
  font-weight: 800;
  margin: 0 0 12px;
  line-height: 1.4;
}

.btt-post-title a {
  color: var(--btt-slate);
  text-decoration: none;
  transition: color 0.2s ease;
}

.btt-post-title a:hover {
  color: var(--btt-blue);
}

.btt-post-meta {
  display: flex;
  gap: 16px;
  margin-bottom: 12px;
  font-size: 12px;
  color: var(--btt-muted);
  font-family: system-ui, -apple-system, sans-serif;
}

.btt-post-excerpt {
  font-size: 14px;
  color: var(--btt-muted);
  line-height: 1.6;
  margin: 0 0 16px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.btt-post-footer {
  padding-top: 16px;
  border-top: 1px solid var(--btt-border);
}

.btt-read-more {
  font-size: 13px;
  font-weight: 700;
  color: var(--btt-blue);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.2s ease;
  font-family: system-ui, -apple-system, sans-serif;
}

.btt-read-more:hover {
  gap: 10px;
}

/* ===== EMPTY STATE ===== */
.btt-empty-state {
  text-align: center;
  padding: 60px 24px;
  background: var(--btt-white);
  border: 1px solid var(--btt-border);
  border-radius: var(--btt-radius-lg);
  grid-column: 1 / -1;
}

.btt-empty-icon {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.5;
}

.btt-empty-state h3 {
  font-size: 20px;
  font-weight: 800;
  color: var(--btt-slate);
  margin-bottom: 10px;
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
}

.btt-empty-state p {
  font-size: 14px;
  color: var(--btt-muted);
  font-family: system-ui, -apple-system, sans-serif;
}

/* ===== PAGINATION ===== */
.btt-pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  margin: 24px 0;
}

.btt-pagination a,
.btt-pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 14px;
  border-radius: var(--btt-radius);
  border: 1px solid var(--btt-border);
  background: var(--btt-white);
  font-size: 13px;
  font-weight: 600;
  color: var(--btt-muted);
  text-decoration: none;
  transition: all 0.2s ease;
  font-family: system-ui, -apple-system, sans-serif;
}

.btt-pagination a:hover {
  border-color: var(--btt-blue);
  color: var(--btt-blue);
  background: #eff6ff;
}

.btt-pagination .current {
  background: var(--btt-slate);
  border-color: var(--btt-slate);
  color: #fff;
}

/* ===== TIP BOX ===== */
.btt-author-tip {
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  border: 1px solid var(--btt-border);
  border-left: 4px solid var(--btt-blue);
  border-radius: var(--btt-radius);
  padding: 20px 24px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
  margin-top: 24px;
}

.btt-tip-icon {
  font-size: 24px;
  flex-shrink: 0;
}

.btt-tip-content {
  font-size: 14px;
  color: var(--btt-slate);
  line-height: 1.5;
  font-family: system-ui, -apple-system, sans-serif;
}

.btt-tip-content strong {
  font-weight: 800;
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
}

.btt-tip-content a {
  color: var(--btt-blue);
  text-decoration: none;
  font-weight: 700;
}

.btt-tip-content a:hover {
  text-decoration: underline;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .btt-author-header {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .btt-author-avatar {
    margin: 0 auto;
  }
  
  .btt-author-bio {
    margin-left: auto;
    margin-right: auto;
  }
  
  .btt-author-meta {
    justify-content: center;
  }
  
  .btt-author-social {
    justify-content: center;
  }
  
  .btt-author-stats-cards {
    flex-wrap: wrap;
  }
  
  .btt-stat-card {
    min-width: 120px;
  }
}

@media (max-width: 768px) {
  .btt-author-container {
    padding: 0 20px 48px;
  }
  
  .btt-author-header {
    padding: 24px;
  }
  
  .btt-author-info h1 {
    font-size: 24px;
  }
  
  .btt-posts-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .btt-author-toolbar {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .btt-topics-grid {
    justify-content: center;
  }
  
  .btt-author-tip {
    flex-direction: column;
    text-align: center;
  }
  
  .btt-tip-icon {
    margin: 0 auto;
  }
}

@media (max-width: 480px) {
  .btt-author-header {
    padding: 20px;
  }
  
  .btt-author-stats-cards {
    gap: 12px;
  }
  
  .btt-stat-card {
    padding: 14px 12px;
  }
  
  .btt-stat-number {
    font-size: 24px;
  }
  
  .btt-post-card {
    padding: 18px;
  }
  
  .btt-post-title {
    font-size: 16px;
  }
  
  .btt-pagination a,
  .btt-pagination span {
    min-width: 36px;
    height: 36px;
    padding: 0 10px;
  }
}

/* ===== PRINT STYLES ===== */
@media print {
  .btt-author-toolbar,
  .btt-pagination,
  .btt-author-tip,
  .btt-author-social,
  .btt-author-stats-cards {
    display: none;
  }
  
  .btt-author-header {
    box-shadow: none;
    border: 1px solid #ddd;
  }
  
  .btt-post-card {
    break-inside: avoid;
    border: 1px solid #ddd;
    box-shadow: none;
  }
}