/* ============ Sip — Blog Design System ============ */

/* Hero Banner */
.blog-hero {
  padding: 8.5rem 0 4rem 0;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
  text-align: center;
  position: relative;
}

.blog-hero .kicker {
  display: inline-block;
  margin-bottom: 0.8rem;
}

.blog-hero h1 {
  max-width: 840px;
  margin: 0 auto 1.2rem auto;
  font-size: clamp(2.4rem, 5vw, 3.8rem);
}

.blog-hero p.lead {
  max-width: 680px;
  margin: 0 auto;
  font-size: 1.15rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* Categories Filter Bar */
.blog-filter-bar {
  display: flex;
  justify-content: center;
  gap: 0.8rem;
  margin-top: 2.2rem;
  flex-wrap: wrap;
}

.filter-btn {
  background: var(--surface);
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 0.5rem 1.2rem;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s var(--ease-lux);
  text-decoration: none;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--accent);
  color: var(--accent-contrast);
  border-color: var(--accent);
}

/* Blog Article Card Grid */
.blog-grid-section {
  padding: 4.5rem 0;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2.5rem;
}

.blog-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.4s var(--ease-lux), box-shadow 0.4s var(--ease-lux);
  text-decoration: none;
  color: var(--text);
}

.blog-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 32px rgba(0,0,0,0.08);
}

.blog-card-meta {
  padding: 1.5rem 1.8rem 0.5rem 1.8rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.blog-card-category {
  color: var(--accent);
  font-weight: 700;
}

.blog-card-body {
  padding: 0.8rem 1.8rem 2rem 1.8rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.blog-card-title {
  font-family: var(--font-display);
  font-size: 1.45rem;
  line-height: 1.25;
  margin-bottom: 0.8rem;
  color: var(--text);
  transition: color 0.3s ease;
}

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

.blog-card-excerpt {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.blog-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
}

.blog-card-footer span.read-link::after {
  content: " →";
  transition: transform 0.3s ease;
  display: inline-block;
}

.blog-card:hover .blog-card-footer span.read-link::after {
  transform: translateX(4px);
}

/* Single Article Layout */
.article-header {
  padding: 8.5rem 0 3rem 0;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
}

.article-header-container {
  max-width: 820px;
  margin: 0 auto;
}

.article-meta-top {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.2rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.article-meta-top .tag {
  background: color-mix(in srgb, var(--accent) 15%, transparent);
  color: var(--accent);
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-weight: 700;
}

.article-title {
  font-size: clamp(2.3rem, 5.5vw, 3.6rem);
  line-height: 1.12;
  margin-bottom: 1.2rem;
}

.article-subhead {
  font-size: 1.2rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 2rem;
}

.author-bar {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.9rem;
}

.author-avatar {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-contrast);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-family: var(--font-display);
}

.author-info strong {
  display: block;
  color: var(--text);
}

.author-info span {
  color: var(--text-muted);
  font-size: 0.82rem;
}

/* Article Body */
.article-body-wrapper {
  padding: 4rem 0;
}

.article-content {
  max-width: 780px;
  margin: 0 auto;
  font-size: 1.08rem;
  line-height: 1.8;
  color: var(--text);
}

.article-content p {
  margin-bottom: 1.8rem;
}

.article-content h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.3rem);
  margin: 3rem 0 1.2rem 0;
  color: var(--text);
}

.article-content h3 {
  font-size: 1.4rem;
  margin: 2.2rem 0 1rem 0;
  color: var(--text);
}

.article-content ul, 
.article-content ol {
  margin: 0 0 2rem 1.5rem;
  padding-left: 0.5rem;
}

.article-content li {
  margin-bottom: 0.75rem;
}

.article-content strong {
  color: var(--text);
}

/* Key Takeaways Callout */
.key-takeaways {
  background: color-mix(in srgb, var(--accent) 10%, var(--surface));
  border-left: 4px solid var(--accent);
  border-radius: 0 12px 12px 0;
  padding: 1.8rem 2rem;
  margin: 2.5rem 0;
}

.key-takeaways h3 {
  margin: 0 0 1rem 0;
  font-size: 1.25rem;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.key-takeaways ul {
  margin: 0;
  padding-left: 1.2rem;
}

.key-takeaways li {
  margin-bottom: 0.5rem;
  font-size: 1rem;
}

/* Blockquotes */
.article-content blockquote {
  border-left: 3px solid var(--accent);
  padding: 1rem 0 1rem 1.8rem;
  margin: 2.5rem 0;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.3rem;
  color: var(--text);
  line-height: 1.5;
}

/* Comparison Tables */
.table-responsive {
  overflow-x: auto;
  margin: 2.5rem 0;
  border-radius: 12px;
  border: 1px solid var(--border);
}

.article-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
  background: var(--surface);
}

.article-table th {
  background: var(--bg-alt);
  padding: 1rem 1.2rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
  border-bottom: 2px solid var(--border);
}

.article-table td {
  padding: 1rem 1.2rem;
  border-bottom: 1px solid var(--border);
}

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

/* Article CTA Box */
.blog-cta-box {
  background: var(--surface);
  border: 1.5px solid var(--accent);
  border-radius: 16px;
  padding: 2.8rem 2.2rem;
  margin: 3.5rem 0;
  text-align: center;
  box-shadow: 0 8px 24px rgba(0,0,0,0.04);
}

.blog-cta-box h3 {
  font-size: 1.8rem;
  margin-bottom: 0.8rem;
}

.blog-cta-box p {
  max-width: 600px;
  margin: 0 auto 1.8rem auto;
  color: var(--text-muted);
}

.blog-cta-box .cta-row {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Back Link */
.back-to-blog {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  transition: color 0.3s ease;
}

.back-to-blog:hover {
  color: var(--accent);
}