/* ═══════════════════════════════════════════════
   Editorial Design System — C3 Numbered Index
   ═══════════════════════════════════════════════ */

:root {
  --text-xs: 0.625rem;
  --text-sm: 0.75rem;
  --text-base: 0.875rem;
  --text-md: 0.9375rem;
  --text-lg: 1.125rem;
  --text-xl: 1.375rem;
  --text-2xl: 2rem;
  --text-3xl: 2.25rem;
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 48px;
  --space-2xl: 80px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
}

/* ─── Editorial Page Label ─── */
.editorial-label {
  color: var(--primary-color);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 4px;
  font-family: 'Cascadia Code', 'SF Mono', monospace;
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-md);
}
.editorial-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: rgba(var(--primary-color-rgb, 8, 126, 150), 0.15);
}

/* ─── Section Divider ─── */
.editorial-divider {
  height: 1px;
  background: linear-gradient(90deg, rgba(var(--primary-color-rgb, 8, 126, 150), 0.3), transparent);
  margin: var(--space-2xl) 0 0;
}

/* ─── Hero Section (Top Page) ─── */
.hero {
  padding: var(--space-2xl) 0 var(--space-xl);
}
.hero h1 {
  font-size: var(--text-3xl);
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1.3;
}
.hero .accent {
  color: var(--primary-color);
}
.hero .hero-subtitle {
  color: var(--meta-color);
  font-size: var(--text-md);
  margin-top: var(--space-md);
  line-height: 1.7;
}
.hero .tech-line {
  margin-top: var(--space-lg);
  display: flex;
  gap: var(--space-sm);
  align-items: center;
  flex-wrap: wrap;
}
.hero .tech-line span {
  color: var(--primary-color);
  opacity: 0.5;
  font-size: 0.6875rem;
  font-family: 'Cascadia Code', 'SF Mono', monospace;
}
.hero .tech-line .dot {
  opacity: 0.15;
}
.hero .hero-badge {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}
.hero .hero-badge img {
  opacity: 0.5;
  transition: opacity var(--transition-fast);
  vertical-align: middle;
}
.hero .hero-badge:hover img {
  opacity: 1;
}

/* ─── Section Label (top page) ─── */
.section-label {
  display: block;
  margin-top: var(--space-xl);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid rgba(var(--primary-color-rgb, 8, 126, 150), 0.08);
}
.section-label span {
  color: var(--primary-color);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 3px;
  font-family: 'Cascadia Code', 'SF Mono', monospace;
}

/* ─── Featured Projects (Top Page) ─── */
.featured-projects {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.06);
}
.featured-item {
  display: flex;
  align-items: center;
  padding: var(--space-md) 20px;
  background: var(--background-color);
  gap: var(--space-md);
  transition: background var(--transition-fast);
  text-decoration: none;
}
.featured-item:hover {
  background: rgba(var(--primary-color-rgb, 8, 126, 150), 0.03);
}
.featured-item .num {
  color: var(--primary-color);
  font-size: var(--text-md);
  font-weight: 800;
  font-family: 'Cascadia Code', 'SF Mono', monospace;
  min-width: 28px;
}
.featured-item .info {
  flex: 1;
  min-width: 0;
}
.featured-item .name {
  font-weight: 600;
  font-size: var(--text-base);
}
.featured-item .desc {
  color: var(--meta-color);
  font-size: var(--text-sm);
  margin-top: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.featured-item .tech {
  color: var(--primary-color);
  opacity: 0.4;
  font-size: var(--text-xs);
  font-family: 'Cascadia Code', 'SF Mono', monospace;
  white-space: nowrap;
}
.featured-item .arrow {
  color: var(--meta-color);
  opacity: 0.4;
  font-size: var(--text-base);
}

/* ─── "See All" Link ─── */
.see-all {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary-color);
  font-size: var(--text-sm);
  margin-top: 20px;
  text-decoration: none;
  font-family: 'Cascadia Code', 'SF Mono', monospace;
  letter-spacing: 0.5px;
}
.see-all:hover {
  text-decoration: underline;
}

/* ─── Project Cards (C3 Numbered Index) ─── */
.cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}
.card {
  border: 1px solid rgba(var(--primary-color-rgb, 8, 126, 150), 0.12);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  background: linear-gradient(180deg, rgba(var(--primary-color-rgb, 8, 126, 150), 0.03) 0%, transparent 100%);
  transition: border-color var(--transition-normal), transform var(--transition-normal), box-shadow var(--transition-normal);
  text-decoration: none;
  display: block;
}
.card:hover {
  border-color: rgba(var(--primary-color-rgb, 8, 126, 150), 0.35);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(var(--primary-color-rgb, 8, 126, 150), 0.08);
}
.card .card-head {
  display: flex;
  align-items: baseline;
  gap: var(--space-sm);
}
.card .card-num {
  color: var(--primary-color);
  font-size: 1.75rem;
  font-weight: 800;
  font-family: 'Cascadia Code', 'SF Mono', monospace;
  line-height: 1;
}
.card .card-dash {
  color: var(--meta-color);
  opacity: 0.3;
  font-size: var(--text-xs);
}
.card .card-cat {
  color: var(--meta-color);
  opacity: 0.5;
  font-size: 0.5625rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-family: 'Cascadia Code', 'SF Mono', monospace;
}
.card .card-title {
  font-weight: 700;
  font-size: 1.25rem;
  margin-top: 14px;
  letter-spacing: -0.3px;
}
.card .card-description {
  color: var(--meta-color);
  font-size: var(--text-sm);
  margin-top: var(--space-sm);
  line-height: 1.6;
}
.card .card-tech {
  margin-top: var(--space-lg);
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  align-items: center;
}
.card .card-tech span {
  color: var(--primary-color);
  opacity: 0.5;
  font-size: 0.6875rem;
  font-family: 'Cascadia Code', 'SF Mono', monospace;
}
.card .card-tech .dot {
  opacity: 0.2;
}

/* Hide original card structure we don't use */
.card .card-image,
.card .card-image-placeholder,
.card .card-info {
  display: none;
}

/* ─── Blog Post List ─── */
.bloglist-container {
  display: flex;
  flex-direction: column;
}
.bloglist-meta {
  display: none;
}
.bloglist-content {
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}
.bloglist-content > div {
  display: flex;
  align-items: baseline;
  gap: 20px;
  padding: 20px 0;
  transition: background var(--transition-fast);
}
.bloglist-content:hover > div {
  background: rgba(var(--primary-color-rgb, 8, 126, 150), 0.02);
  margin: 0 -12px;
  padding: 20px 12px;
  border-radius: var(--radius-sm);
}
.bloglist-tags {
  display: flex;
  gap: 6px;
}
.bloglist-tags .tag {
  color: var(--primary-color);
  opacity: 0.4;
  font-size: var(--text-xs);
  font-family: 'Cascadia Code', 'SF Mono', monospace;
  text-decoration: none;
}
.bloglist-content .description,
.bloglist-content .readmore {
  display: none;
}

/* ─── Archive ─── */
.archive .listing-title {
  color: var(--primary-color);
  font-size: var(--text-2xl);
  font-weight: 800;
  font-family: 'Cascadia Code', 'SF Mono', monospace;
  margin-bottom: var(--space-md);
  letter-spacing: -1px;
}
.archive .listing-item {
  display: flex;
  gap: var(--space-md);
  padding: 10px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}
.archive .listing-item .date {
  color: var(--meta-color);
  opacity: 0.5;
  font-size: var(--text-sm);
  font-family: 'Cascadia Code', 'SF Mono', monospace;
  min-width: 60px;
}
.archive .listing-item a {
  color: var(--meta-color);
  font-size: var(--text-base);
  text-decoration: none;
}
.archive .listing-item a:hover {
  color: var(--primary-color);
}

/* ─── Tags ─── */
#tag-cloud {
  columns: unset;
}
#tag-cloud .tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
  padding: 0;
}
#tag-cloud .tags-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.02);
  transition: border-color var(--transition-fast);
}
#tag-cloud .tags-item:hover {
  border-color: rgba(var(--primary-color-rgb, 8, 126, 150), 0.3);
}
#tag-cloud .tags-item a {
  color: var(--meta-color);
  font-size: 13px;
  text-decoration: none;
}
#tag-cloud .tags-item sup,
#tag-cloud .tags-item span {
  color: var(--primary-color);
  font-size: 0.6875rem;
  font-family: 'Cascadia Code', 'SF Mono', monospace;
}

/* ─── Navigation refinements ─── */
.nav-title a {
  font-weight: 800;
  letter-spacing: -0.5px;
}
.nav-links a {
  font-size: 13px;
  letter-spacing: 0.5px;
}

/* ─── Footer refinements ─── */
footer .copyright {
  font-family: 'Cascadia Code', 'SF Mono', monospace;
  font-size: 0.6875rem;
}

/* ─── Light Mode Overrides ─── */
[data-theme="light"] .featured-projects {
  background: rgba(0, 0, 0, 0.03);
  border-color: rgba(0, 0, 0, 0.06);
}
[data-theme="light"] .featured-item {
  background: var(--background-color);
}
[data-theme="light"] .featured-item:hover {
  background: rgba(var(--primary-color-rgb, 8, 126, 150), 0.04);
}
[data-theme="light"] .card {
  background: linear-gradient(180deg, rgba(var(--primary-color-rgb, 8, 126, 150), 0.04) 0%, transparent 100%);
}
[data-theme="light"] .card .card-tech {
  border-top-color: rgba(0, 0, 0, 0.06);
}
[data-theme="light"] .bloglist-content {
  border-bottom-color: rgba(0, 0, 0, 0.06);
}
[data-theme="light"] .archive .listing-item {
  border-bottom-color: rgba(0, 0, 0, 0.04);
}
[data-theme="light"] #tag-cloud .tags-item {
  border-color: rgba(0, 0, 0, 0.08);
  background: rgba(0, 0, 0, 0.02);
}

/* ─── Responsive ─── */
@media (max-width: 640px) {
  .cards {
    grid-template-columns: 1fr;
  }
  .hero h1 {
    font-size: 1.75rem;
  }
  .featured-item .desc {
    display: none;
  }
  .featured-item .tech {
    display: none;
  }
}