/* ========================================
   HOMEPAGE REDESIGN
   Loaded ONLY on homepage. Zero impact on article pages.
   Factorio industrial warm palette throughout.
   ======================================== */

/* ── Hero Space Age CTA ── */
.hero-btn-space {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.6rem 1.4rem;
  background: linear-gradient(135deg, #c06000, #e8941c);
  color: #fff !important;
  border-radius: 8px;
  font-family: 'Rajdhani', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-decoration: none !important;
  transition: all 0.2s;
  box-shadow: 0 0 16px rgba(232,148,28,0.2);
}
.hero-btn-space:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 24px rgba(232,148,28,0.4);
}

/* ════════════════════════════════════════
   SPACE AGE SHOWCASE
   Warm industrial palette — Factorio factory at night
   1 featured card (full width) + 6 cards (3×2 grid)
   ════════════════════════════════════════ */

.sa-showcase {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 40% 20%, rgba(200,100,20,0.08) 0%, transparent 55%),
    radial-gradient(ellipse at 70% 80%, rgba(232,148,28,0.05) 0%, transparent 50%),
    linear-gradient(180deg, #0d0d0d 0%, #12100c 30%, #0f0e0b 70%, #0d0d0d 100%);
  border-top: 1px solid rgba(232,148,28,0.2);
  border-bottom: 1px solid rgba(232,148,28,0.2);
  box-shadow: inset 0 0 60px rgba(232,148,28,0.03);
  padding: 3.5rem 0;
}
.sa-showcase::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(232,148,28,0.3), rgba(245,170,46,0.3), transparent);
}
.sa-showcase::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(245,170,46,0.25), rgba(232,148,28,0.25), transparent);
}

.sa-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gap);
}

/* ── Header ── */
.sa-header {
  text-align: center;
  margin-bottom: 2.5rem;
}
.sa-badge {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.3rem 1rem;
  background: linear-gradient(135deg, rgba(232,148,28,0.15), rgba(245,170,46,0.1));
  border: 1px solid rgba(232,148,28,0.3);
  border-radius: 20px;
  color: #f5aa2e;
  font-family: 'Orbitron', sans-serif;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  box-shadow: 0 0 12px rgba(232,148,28,0.1);
}
.sa-badge svg { animation: sa-pulse 2s ease-in-out infinite; }
@keyframes sa-pulse { 0%, 100% { opacity: 0.6; } 50% { opacity: 1; } }

.sa-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.6rem; font-weight: 900;
  color: #f5aa2e;
  margin: 0 0 0.5rem;
  letter-spacing: 0.04em;
  line-height: 1.2;
  text-shadow: 0 0 30px rgba(232,148,28,0.15);
}
.sa-sub { color: rgba(255,255,255,0.4); font-size: 0.95rem; max-width: 520px; margin: 0 auto; line-height: 1.6; }

/* ── Featured Card (first article, full width) ── */
.sa-featured {
  display: flex;
  flex-direction: column;
  margin-bottom: 1.5rem;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(232,148,28,0.2);
  background: rgba(255,255,255,0.03);
  text-decoration: none !important;
  transition: all 0.3s ease;
  position: relative;
}
.sa-featured::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, #a05000, #e8941c, #f5aa2e, #e8941c, #a05000);
  opacity: 0; transition: opacity 0.3s;
}
.sa-featured:hover {
  border-color: rgba(232,148,28,0.45);
  background: rgba(255,255,255,0.05);
  transform: translateY(-3px);
  box-shadow: 0 10px 40px rgba(0,0,0,0.4), 0 0 30px rgba(232,148,28,0.1);
}
.sa-featured:hover::before { opacity: 1; }

.sa-featured-inner {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.5rem;
  padding: 2rem;
  align-items: center;
}
.sa-featured-icon {
  width: 80px; height: 80px;
  flex-shrink: 0;
  color: rgba(232,148,28,0.2);
  transition: color 0.3s;
}
.sa-featured:hover .sa-featured-icon { color: rgba(232,148,28,0.45); }
.sa-featured-body { min-width: 0; }

.sa-featured-new {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 4px;
  background: linear-gradient(135deg, #c06000, #e8941c);
  color: #fff;
  font-family: 'Rajdhani', sans-serif;
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 0.6rem;
  box-shadow: 0 0 12px rgba(232,148,28,0.25);
}
.sa-featured-body h3 {
  font-family: 'Rajdhani', sans-serif;
  font-size: 1.2rem;
  font-weight: 600;
  color: #f0e8d8;
  margin-bottom: 0.5rem;
  line-height: 1.3;
  transition: color 0.2s;
}
.sa-featured:hover .sa-featured-body h3 { color: #fff; }
.sa-featured-body p {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.4);
  line-height: 1.55;
  margin: 0 0 0.8rem;
}
.sa-featured-footer {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.sa-featured-tag { font-size: 0.75rem; color: rgba(245,170,46,0.5); }
.sa-featured-read {
  font-family: 'Rajdhani', sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  color: rgba(232,148,28,0.5);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: color 0.2s;
}
.sa-featured:hover .sa-featured-read { color: #e8941c; }

/* ── Card Grid (3 cols × 2 rows = 6 cards) ── */
.sa-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}

.sa-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(232,148,28,0.15);
  border-radius: 10px;
  padding: 1.2rem 1.1rem;
  text-decoration: none !important;
  transition: all 0.25s ease;
  overflow: hidden;
}
.sa-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, rgba(232,148,28,0.5), transparent);
  opacity: 0; transition: opacity 0.25s;
}
.sa-card:hover {
  border-color: rgba(232,148,28,0.4);
  background: rgba(255,255,255,0.04);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.4), 0 0 20px rgba(232,148,28,0.08);
}
.sa-card:hover::before { opacity: 1; }

.sa-card-new {
  position: absolute; top: 10px; right: 10px; z-index: 2;
  padding: 2px 8px; border-radius: 4px;
  background: linear-gradient(135deg, #c06000, #e8941c);
  color: #fff;
  font-family: 'Rajdhani', sans-serif;
  font-weight: 700; font-size: 0.65rem;
  letter-spacing: 0.04em;
  box-shadow: 0 0 10px rgba(232,148,28,0.3);
}

.sa-card-icon {
  margin-bottom: 0.5rem;
  transition: all 0.25s;
}
.sa-card-icon svg { display: block; }

.sa-card-body { flex: 1; }
.sa-card-body h3 {
  font-family: 'Rajdhani', sans-serif;
  font-size: 0.9rem; font-weight: 600;
  color: #e0d8c8;
  margin-bottom: 0.3rem;
  line-height: 1.25;
  transition: color 0.2s;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.sa-card:hover .sa-card-body h3 { color: #fff; }
.sa-card-body p {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.35);
  line-height: 1.4;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.sa-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0.7rem;
  padding-top: 0.5rem;
  border-top: 1px solid rgba(232,148,28,0.1);
}
.sa-read {
  font-family: 'Rajdhani', sans-serif;
  font-size: 0.75rem; font-weight: 600;
  color: rgba(232,148,28,0.4);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: color 0.2s;
}
.sa-card:hover .sa-read { color: #e8941c; }
.sa-planet { font-size: 0.7rem; color: rgba(255,255,255,0.2); }

/* ── CTA ── */
.sa-cta { text-align: center; }
.sa-cta-btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.7rem 1.8rem;
  border: 1.5px solid rgba(232,148,28,0.3);
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(232,148,28,0.08), rgba(245,170,46,0.05));
  color: #f5aa2e !important;
  font-family: 'Rajdhani', sans-serif; font-weight: 600;
  font-size: 0.85rem; letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none !important;
  transition: all 0.2s;
  cursor: pointer;
}
.sa-cta-btn:hover {
  background: linear-gradient(135deg, rgba(232,148,28,0.2), rgba(245,170,46,0.1));
  border-color: rgba(232,148,28,0.55);
  box-shadow: 0 0 20px rgba(232,148,28,0.2);
  transform: translateY(-2px);
  color: #fff !important;
}
.sa-cta-btn svg { transition: transform 0.2s; }
.sa-cta-btn:hover svg { transform: translateX(4px); }

/* ════════════════════════════════════════
   VANILLA SECTION — Collapsible
   Secondary content hierarchy, visually
   lighter than the SA showcase above.
   ════════════════════════════════════════ */

.vanilla-section {
  position: relative;
  padding: 1rem 0 2rem;
  background: #0d0d0d;
}

/* ── Native <details> collapse ── */
.vanilla-collapse {
  border: none;
  background: none;
}
.vanilla-collapse[open] .vanilla-toggle-icon svg {
  transform: rotate(90deg);
}

.vanilla-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  list-style: none;
  cursor: pointer;
  user-select: none;
}
.vanilla-summary::-webkit-details-marker {
  display: none;
}
.vanilla-summary::marker {
  display: none;
  content: '';
}

.vanilla-summary .section-header {
  flex: 1;
  margin-bottom: 0;
}

.vanilla-toggle-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.25);
  transition: all 0.2s;
  flex-shrink: 0;
}
.vanilla-summary:hover .vanilla-toggle-icon {
  border-color: rgba(232,148,28,0.35);
  color: rgba(232,148,28,0.5);
}
.vanilla-toggle-icon svg {
  transition: transform 0.25s ease;
}

.vanilla-count {
  font-family: 'Rajdhani', sans-serif;
  font-weight: 400;
  font-size: 0.7rem;
  color: rgba(255,255,255,0.25);
  margin-left: 0.4rem;
}

.vanilla-topics {
  margin-top: 0.5rem;
}

/* ── Topic Grid ── */
.topic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0.75rem;
}

.topic-card {
  display: flex;
  flex-direction: column;
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 8px;
  overflow: hidden;
  text-decoration: none !important;
  transition: all 0.2s;
}
.topic-card:hover {
  border-color: rgba(232,148,28,0.25);
  background: rgba(255,255,255,0.04);
  transform: translateY(-2px);
}
.topic-card-top {
  height: 3px;
  flex-shrink: 0;
}
.topic-body {
  padding: 0.8rem;
}
.topic-body h3 {
  font-family: 'Rajdhani', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  color: #ccc;
  margin: 0 0 0.25rem;
  line-height: 1.2;
  transition: color 0.15s;
}
.topic-card:hover .topic-body h3 { color: #f5aa2e; }
.topic-body p {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.3);
  margin: 0;
  line-height: 1.4;
}

/* ════════════════════════════════════════
   SITE FOOTER — About + Disclaimer
   Visually separated from content layers
   ════════════════════════════════════════ */

.site-footer-section {
  position: relative;
  padding: 2rem 0 3rem;
  background:
    linear-gradient(180deg, #0d0d0d 0%, #0a0a0a 100%);
  border-top: 1px solid rgba(255,255,255,0.04);
}

.about-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.5rem;
  align-items: start;
  padding: 1.5rem;
  background: rgba(255,255,255,0.015);
  border: 1px solid rgba(255,255,255,0.04);
  border-radius: 10px;
}
.about-card-icon {
  width: 64px;
  flex-shrink: 0;
  opacity: 0.5;
}
.about-card-body h2 {
  font-family: 'Orbitron', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: #999;
  margin-bottom: 0.5rem;
}
.about-card-body p {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.35);
  line-height: 1.6;
  margin-bottom: 0.8rem;
}
.about-card-body .btn-ghost {
  display: inline-block;
  padding: 0.4rem 1rem;
  border: 1px solid rgba(232,148,28,0.2);
  border-radius: 6px;
  font-family: 'Rajdhani', sans-serif;
  font-weight: 600;
  font-size: 0.8rem;
  color: rgba(232,148,28,0.6);
  text-decoration: none !important;
  transition: all 0.2s;
}
.about-card-body .btn-ghost:hover {
  border-color: rgba(232,148,28,0.5);
  color: #e8941c;
  background: rgba(232,148,28,0.08);
}

.site-disclaimer {
  margin-top: 1.5rem;
  padding: 0.8rem 1rem;
  text-align: center;
  background: rgba(255,255,255,0.015);
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.03);
}
.site-disclaimer p {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.15);
  margin: 0;
  line-height: 1.5;
}

/* ── Hero CTA order: SA button first now ── */
.hero-section .hero-cta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.6rem;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .vanilla-section { padding: 0.5rem 0 1.5rem; }
  .topic-grid { grid-template-columns: repeat(2, 1fr); }
  .about-card { grid-template-columns: 1fr; text-align: center; }
  .about-card-icon { margin: 0 auto; }
}
@media (max-width: 480px) {
  .topic-grid { grid-template-columns: 1fr; }
  .vanilla-summary .section-title-badge { font-size: 0.7rem; }
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .sa-featured-inner { grid-template-columns: 1fr; text-align: center; }
  .sa-featured-icon { margin: 0 auto; }
  .sa-featured-footer { justify-content: center; }
  .sa-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .sa-showcase { padding: 2rem 0; }
  .sa-title { font-size: 1.1rem; }
  .sa-featured-inner { padding: 1.2rem; }
  .sa-featured-body h3 { font-size: 1rem; }
  .sa-grid { grid-template-columns: 1fr; }
  .sa-card { padding: 1rem; }
}