/* ==========================================
   MARKETING CLOUD ARCADE — Main Stylesheet
   ========================================== */

@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&family=JetBrains+Mono:wght@400;600&family=Inter:wght@400;500;600;700&display=swap');

/* ── CSS Variables ── */
:root {
  --bg-primary:    #0d0d1a;
  --bg-secondary:  #12122a;
  --bg-card:       #0f0f24;
  --bg-elevated:   #1a1a38;

  --neon-pink:    #ff00ff;
  --neon-cyan:    #00ffff;
  --neon-yellow:  #ffff00;
  --neon-green:   #00ff88;
  --neon-orange:  #ff6b35;

  --text-primary:   #e8e8ff;
  --text-secondary: #8888aa;
  --text-tertiary:  #6a6a8a;
  --text-muted:     #55557a;

  --border-soft:  rgba(42, 42, 85, 0.4);
  --border-dim:   #2a2a55;
  --border-strong:#3a3a88;

  --control-bg:     #12122a;
  --control-border: #2a2a55;
  --control-focus:  #00ffff;

  --font-arcade: 'Press Start 2P', monospace;
  --font-mono:   'JetBrains Mono', monospace;
  --font-body:   'Inter', sans-serif;

  --glow-pink:   0 0 8px #ff00ff88, 0 0 20px #ff00ff44;
  --glow-cyan:   0 0 8px #00ffff88, 0 0 20px #00ffff44;
  --glow-yellow: 0 0 8px #ffff0088, 0 0 20px #ffff0044;
  --glow-green:  0 0 8px #00ff8888, 0 0 20px #00ff8844;

  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2.5rem;
  --space-2xl: 4rem;

  --pixel-border: 2px solid var(--border-dim);
  --radius: 4px;

  --transition: 0.15s ease;
}

/* Light mode */
[data-theme="light"] {
  --bg-primary:    #faf8f3;
  --bg-secondary:  #f0ede4;
  --bg-card:       #ffffff;
  --bg-elevated:   #f5f2ea;
  --text-primary:   #1a1a2e;
  --text-secondary: #3d3d5c;
  --text-tertiary:  #55557a;
  --text-muted:     #6b6b85;
  --border-soft:  #e8e4d8;
  --border-dim:   #d8d3c4;
  --border-strong:#b8a890;
  --control-bg:     #ffffff;
  --control-border: #d8d3c4;
  --control-focus:  #007a8a;
  --neon-cyan:    #007a8a;
  --neon-pink:    #d6005c;
  --neon-yellow:  #b88600;
  --neon-green:   #0a8044;
  --neon-orange:  #d4502a;
  --glow-pink:   0 0 0 1px rgba(214,0,92,0.18);
  --glow-cyan:   0 0 0 1px rgba(0,122,138,0.18);
  --glow-yellow: 0 0 0 1px rgba(184,134,0,0.18);
  --glow-green:  0 0 0 1px rgba(10,128,68,0.18);
  --glow-orange: 0 0 0 1px rgba(212,80,42,0.18);
}

/* 4. Eliminar text-shadows en light */
[data-theme="light"] *,
[data-theme="light"] *::before,
[data-theme="light"] *::after {
  text-shadow: none !important;
}
[data-theme="light"] .arcade-title,
[data-theme="light"] .section-title,
[data-theme="light"] .hero-title {
  text-shadow: 1px 1px 0 rgba(0,0,0,0.08) !important;
}

/* 5. Code blocks SIEMPRE oscuros */
[data-theme="light"] .code-block { 
  background: #2a2640 !important; 
  border-color: #3d3956 !important; 
}
[data-theme="light"] .code-block pre,
[data-theme="light"] .code-block code { 
  color: #e8e4ff !important; 
}

/* 6. Tags con backgrounds tintados */
[data-theme="light"] .tag {
  background: rgba(0,122,138,0.08) !important;
  border-color: rgba(0,122,138,0.25) !important;
  color: var(--neon-cyan) !important;
}
[data-theme="light"] .tag.pink {
  background: rgba(214,0,92,0.08) !important;
  border-color: rgba(214,0,92,0.25) !important;
  color: var(--neon-pink) !important;
}
[data-theme="light"] .tag.yellow {
  background: rgba(184,134,0,0.08) !important;
  border-color: rgba(184,134,0,0.25) !important;
  color: var(--neon-yellow) !important;
}
[data-theme="light"] .tag.green {
  background: rgba(10,128,68,0.08) !important;
  border-color: rgba(10,128,68,0.25) !important;
  color: var(--neon-green) !important;
}
[data-theme="light"] .tag.orange {
  background: rgba(212,80,42,0.08) !important;
  border-color: rgba(212,80,42,0.25) !important;
  color: var(--neon-orange) !important;
}

/* 7. Sidebar boxes con sombra sutil */
[data-theme="light"] .sidebar-box,
[data-theme="light"] .sidebar-card,
[data-theme="light"] .sidebar-nav {
  background: white !important;
  border-color: var(--border-dim) !important;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04) !important;
}

/* 8. Callouts con backgrounds suaves diferenciados */
[data-theme="light"] .callout.info,
[data-theme="light"] .callout { 
  background: #eaf6f8 !important; 
}
[data-theme="light"] .callout.tip { 
  background: #ebf5ee !important; 
}
[data-theme="light"] .callout.warning,
[data-theme="light"] .callout.warn { 
  background: #fdf2e9 !important; 
}

/* 9. Botones primarios sólidos (no transparentes) */
[data-theme="light"] .btn-primary {
  background: var(--neon-cyan) !important;
  color: white !important;
  border-color: var(--neon-cyan) !important;
  box-shadow: 0 2px 6px rgba(0,122,138,0.25) !important;
}
[data-theme="light"] .btn-secondary {
  background: white !important;
  color: var(--neon-cyan) !important;
  border-color: var(--neon-cyan) !important;
}

/* 10. Filtros activos sólidos */
[data-theme="light"] .filter-btn.active,
[data-theme="light"] .lvl-btn.active {
  background: var(--neon-cyan) !important;
  color: white !important;
  border-color: var(--neon-cyan) !important;
}

/* 11. Article cards */
[data-theme="light"] .article-card,
[data-theme="light"] .category-card {
  background: white !important;
  box-shadow: 0 1px 2px rgba(0,0,0,0.04) !important;
}
[data-theme="light"] .article-card:hover,
[data-theme="light"] .category-card:hover {
  border-color: var(--neon-cyan) !important;
  box-shadow: 0 4px 12px rgba(0,122,138,0.15) !important;
}

/* 13. Lang/theme toggles en navbar */
[data-theme="light"] .arcade-track {
  background: white !important;
  border-color: var(--border-dim) !important;
}
[data-theme="light"] #nav-lang-switch:checked + .arcade-track .arcade-slider {
  background-color: var(--neon-pink) !important;
  box-shadow: none !important;
}
[data-theme="light"] #nav-lang-switch:checked + .arcade-track .text-en {
  color: white !important;
}
[data-theme="light"] #nav-lang-switch:checked + .arcade-track .text-es {
  color: var(--text-muted) !important;
}
[data-theme="light"] .btn-icon {
  background: white !important;
  border-color: var(--border-dim) !important;
}
[data-theme="light"] .btn-icon:hover {
  background: rgba(0,122,138,0.08) !important;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Scanlines overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.06) 2px,
    rgba(0,0,0,0.06) 4px
  );
  pointer-events: none;
  z-index: 9999;
}

[data-theme="light"] body::before { opacity: 0.15 !important; }

a { color: var(--neon-cyan); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--neon-pink); }

img { max-width: 100%; display: block; }

/* ── Reading Progress Bar ── */
#reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--neon-pink), var(--neon-cyan), var(--neon-yellow));
  z-index: 10001;
  transition: width 0.1s linear;
  box-shadow: var(--glow-cyan);
}

/* ── Navbar ── */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(13,13,26,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-dim);
  padding: 0 2rem;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

[data-theme="light"] .navbar {
  background: rgba(250,248,243,0.92);
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  flex-shrink: 0;
}

.navbar-logo-icon {
  width: 36px;
  height: 36px;
  background: var(--neon-pink);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  box-shadow: var(--glow-pink);
  animation: logo-pulse 3s ease-in-out infinite;
}

@keyframes logo-pulse {
  0%, 100% { box-shadow: var(--glow-pink); }
  50% { box-shadow: 0 0 16px #ff00ffcc, 0 0 32px #ff00ff66; }
}

.navbar-logo-text {
  font-family: var(--font-arcade);
  font-size: 0.55rem;
  line-height: 1.4;
  color: var(--text-primary);
}

.navbar-logo-text span {
  display: block;
  color: var(--neon-cyan);
  font-size: 0.45rem;
}

.navbar-spacer { flex: 1; }

.navbar-search {
  position: relative;
  max-width: 280px;
  width: 100%;
}

.navbar-search input {
  width: 100%;
  background: var(--control-bg);
  border: 1px solid var(--control-border);
  border-radius: var(--radius);
  padding: var(--space-sm) var(--space-md) var(--space-sm) var(--space-xl);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.navbar-search input:focus {
  border-color: var(--control-focus);
  box-shadow: var(--glow-cyan);
}

.navbar-search input::placeholder { color: var(--text-muted); }

.navbar-search-icon {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 0.85rem;
  pointer-events: none;
}

.navbar-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
}

.navbar-links a {
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition), background var(--transition);
  white-space: nowrap;
}

.navbar-links a:hover, .navbar-links a.active {
  color: var(--neon-cyan);
  background: rgba(0,255,255,0.08);
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-icon {
  width: 36px;
  height: 36px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-dim);
  border-radius: var(--radius);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: all var(--transition);
}

.btn-icon:hover {
  border-color: var(--neon-cyan);
  color: var(--neon-cyan);
  box-shadow: var(--glow-cyan);
}

.nav-arcade-toggle {
  display: inline-block;
  font-family: var(--font-arcade);
  margin: 0 10px;
}

.nav-arcade-toggle input {
  display: none;
}

.arcade-track {
  display: flex;
  position: relative;
  width: 60px;
  height: 26px;
  background-color: var(--bg-secondary);
  border: 2px solid var(--border-dim);
  cursor: pointer;
  align-items: center;
  user-select: none;
}

.arcade-slider {
  position: absolute;
  top: 0;
  left: 0;
  width: 50%;
  height: 100%;
  background-color: var(--neon-pink);
  transition: transform 0.2s steps(4), background-color 0.2s;
  z-index: 1;
  box-shadow: var(--glow-pink);
}

.lang-text {
  flex: 1;
  text-align: center;
  font-size: 9px;
  z-index: 2;
  position: relative;
  pointer-events: none;
  transition: color 0.1s;
}

.text-es {
  color: #fff;
  text-shadow: 1px 1px 0 #000;
}

.text-en {
  color: #666;
}

#nav-lang-switch:checked + .arcade-track .arcade-slider {
  transform: translateX(100%);
  background-color: var(--neon-cyan);
  box-shadow: var(--glow-cyan);
}

#nav-lang-switch:checked + .arcade-track .text-es {
  color: #666;
  text-shadow: none;
}

#nav-lang-switch:checked + .arcade-track .text-en {
  color: #000;
}

.arcade-track:hover {
  border-color: var(--border-strong);
}

/* ── Hero Section ── */
.hero {
  padding: 5rem 2rem 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,255,255,0.05) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black, transparent);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255,0,255,0.1);
  border: 1px solid rgba(255,0,255,0.3);
  border-radius: 100px;
  padding: 0.35rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--neon-pink);
  margin-bottom: 2rem;
  box-shadow: var(--glow-pink);
  animation: flicker 4s ease-in-out infinite;
}

@keyframes flicker {
  0%, 95%, 100% { opacity: 1; }
  96%, 98% { opacity: 0.7; }
}

.hero-title {
  font-family: var(--font-arcade);
  font-size: clamp(1.2rem, 4vw, 2.4rem);
  line-height: 1.5;
  margin-bottom: 1rem;
  position: relative;
}

.hero-title .line1 { color: var(--neon-cyan); text-shadow: var(--glow-cyan); }
.hero-title .line2 { color: var(--neon-pink); text-shadow: var(--glow-pink); }
.hero-title .line3 { color: var(--neon-yellow); text-shadow: var(--glow-yellow); font-size: 0.6em; }

.hero-subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 560px;
  margin: 0 auto 2.5rem;
}

.hero-cta-group {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 0.2s;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--neon-pink);
  color: #000;
  border-color: var(--neon-pink);
  box-shadow: var(--glow-pink);
}

.btn-primary:hover {
  background: #fff;
  color: #000;
  border-color: #fff;
  box-shadow: 0 0 16px #ffffff88;
}

.btn-secondary {
  background: transparent;
  color: var(--neon-cyan);
  border-color: var(--neon-cyan);
  box-shadow: var(--glow-cyan);
}

.btn-secondary:hover {
  background: var(--neon-cyan);
  color: #000;
}

/* ── Pixel Marquee ── */
.pixel-marquee {
  overflow: hidden;
  border-top: 1px solid var(--border-dim);
  border-bottom: 1px solid var(--border-dim);
  padding: 0.75rem 0;
  background: var(--bg-secondary);
}

.pixel-marquee-inner {
  display: flex;
  gap: 3rem;
  animation: marquee 30s linear infinite;
  white-space: nowrap;
  width: max-content;
}

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.pixel-marquee-item {
  font-family: var(--font-arcade);
  font-size: 0.5rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 1rem;
}

.pixel-marquee-item .dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--neon-pink);
  box-shadow: var(--glow-pink);
  flex-shrink: 0;
}

/* ── Section ── */
.section {
  padding: 4rem 2rem;
  max-width: 1280px;
  margin: 0 auto;
}

.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 2rem;
  gap: 1rem;
}

.section-title {
  font-family: var(--font-arcade);
  font-size: 0.75rem;
  color: var(--neon-yellow);
  text-shadow: var(--glow-yellow);
  letter-spacing: 0.08em;
}

.section-title::before {
  content: '> ';
  color: var(--neon-cyan);
}

.section-link {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--neon-cyan);
  white-space: nowrap;
}

/* ── Category Cards ── */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}

.category-card {
  background: var(--bg-card);
  border: 1px solid var(--border-dim);
  border-radius: var(--radius);
  padding: 1.5rem;
  cursor: pointer;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: all 0.2s;
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--card-color, var(--neon-cyan));
  opacity: 0;
  transition: opacity 0.2s;
}

.category-card:hover {
  border-color: var(--card-color, var(--neon-cyan));
  box-shadow: 0 0 12px var(--card-color, var(--neon-cyan))33;
  transform: translateY(-2px);
}

.category-card:hover::before { opacity: 1; }

.category-icon {
  font-size: 1.8rem;
  line-height: 1;
}

.category-name {
  font-family: var(--font-arcade);
  font-size: 0.55rem;
  color: var(--text-primary);
  line-height: 1.6;
}

.category-count {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
}

.category-count span {
  color: var(--card-color, var(--neon-cyan));
  font-weight: 600;
}

/* ── Article Cards ── */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.25rem;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-dim);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-primary);
  transition: all 0.2s;
  position: relative;
}

.article-card:hover {
  border-color: var(--neon-cyan);
  box-shadow: var(--glow-cyan);
  transform: translateY(-2px);
  color: var(--text-primary);
}

.article-card-top {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.6rem;
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 600;
  background: rgba(0,255,255,0.1);
  color: var(--neon-cyan);
  border: 1px solid rgba(0,255,255,0.2);
}

.tag.pink { background: rgba(255,0,255,0.1); color: var(--neon-pink); border-color: rgba(255,0,255,0.2); }
.tag.yellow { background: rgba(255,255,0,0.1); color: var(--neon-yellow); border-color: rgba(255,255,0,0.2); }
.tag.green { background: rgba(0,255,136,0.1); color: var(--neon-green); border-color: rgba(0,255,136,0.2); }
.tag.orange { background: rgba(255,107,53,0.1); color: var(--neon-orange); border-color: rgba(255,107,53,0.2); }

.level-badge {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-family: var(--font-arcade);
  font-size: 0.45rem;
  padding: 0.2rem 0.5rem;
  border-radius: 2px;
}

.level-badge.beginner { background: rgba(0,255,136,0.15); color: var(--neon-green); border: 1px solid rgba(0,255,136,0.3); }
.level-badge.intermediate { background: rgba(255,255,0,0.15); color: var(--neon-yellow); border: 1px solid rgba(255,255,0,0.3); }
.level-badge.advanced { background: rgba(255,0,255,0.15); color: var(--neon-pink); border: 1px solid rgba(255,0,255,0.3); }

.article-card-title {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text-primary);
}

.article-card-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
  flex: 1;
}

.article-card-footer {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-dim);
}

.article-card-footer .views {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  margin-left: auto;
}

.article-card-footer .views.hot { color: var(--neon-pink); }

/* ── Code Blocks ── */
.code-block {
  position: relative;
  background: #080818;
  border: 1px solid var(--border-dim);
  border-radius: var(--radius);
  overflow: hidden;
  margin: 1.5rem 0;
}

/* [data-theme="light"] .code-block override moved to top */

.code-block-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 1rem;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border-dim);
}

.code-block-dots {
  display: flex;
  gap: 5px;
}

.code-block-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.code-block-dot:nth-child(1) { background: #ff5f56; }
.code-block-dot:nth-child(2) { background: #ffbd2e; }
.code-block-dot:nth-child(3) { background: #27c93f; }

.code-block-lang {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-left: auto;
}

.code-copy-btn {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(0,255,255,0.08);
  border: 1px solid rgba(0,255,255,0.2);
  border-radius: 3px;
  padding: 0.25rem 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--neon-cyan);
  cursor: pointer;
  transition: all var(--transition);
}

.code-copy-btn:hover {
  background: rgba(0,255,255,0.15);
  box-shadow: var(--glow-cyan);
}

.code-copy-btn.copied {
  color: var(--neon-green);
  border-color: rgba(0,255,136,0.3);
  background: rgba(0,255,136,0.08);
}

pre {
  padding: 1.25rem 1rem;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.83rem;
  line-height: 1.65;
  color: #e8e8ff;
  tab-size: 2;
}

/* [data-theme="light"] pre override moved to top */

/* Syntax colors */
.kw  { color: #ff79c6; }  /* keywords */
.fn  { color: #50fa7b; }  /* functions */
.st  { color: #f1fa8c; }  /* strings */
.cm  { color: #6272a4; font-style: italic; } /* comments */
.nb  { color: #8be9fd; }  /* numbers/builtins */
.vr  { color: #bd93f9; }  /* variables */

/* ── Stats Bar ── */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0;
  border: 1px solid var(--border-dim);
  border-radius: var(--radius);
  overflow: hidden;
  margin: 2rem 0;
}

.stat-item {
  padding: 1.5rem;
  text-align: center;
  border-right: 1px solid var(--border-dim);
  background: var(--bg-card);
}

.stat-item:last-child { border-right: none; }

.stat-value {
  font-family: var(--font-arcade);
  font-size: 1.1rem;
  color: var(--neon-cyan);
  text-shadow: var(--glow-cyan);
  display: block;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* ── Changelog ── */
.changelog-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border-dim);
  border-radius: var(--radius);
  overflow: hidden;
}

.changelog-item {
  display: flex;
  gap: 1.5rem;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-dim);
  align-items: flex-start;
  background: var(--bg-card);
  transition: background var(--transition);
}

.changelog-item:last-child { border-bottom: none; }
.changelog-item:hover { background: var(--bg-elevated); }

.changelog-date {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  white-space: nowrap;
  min-width: 90px;
  padding-top: 2px;
}

.changelog-content { flex: 1; }

.changelog-title {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.changelog-desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

/* ── Footer ── */
.footer {
  border-top: 1px solid var(--border-dim);
  padding: 3rem 2rem;
  background: var(--bg-secondary);
}

.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 3rem;
  align-items: start;
}

.footer-brand-name {
  font-family: var(--font-arcade);
  font-size: 0.6rem;
  color: var(--neon-pink);
  text-shadow: var(--glow-pink);
  line-height: 1.8;
}

.footer-brand-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 0.75rem;
  line-height: 1.6;
}

.footer-links-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.footer-links-title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.footer-links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-links-list a {
  font-size: 0.82rem;
  color: var(--text-muted);
  transition: color var(--transition);
}

.footer-links-list a:hover { color: var(--neon-cyan); }

.footer-bottom {
  max-width: 1280px;
  margin: 2rem auto 0;
  padding-top: 2rem;
  border-top: 1px solid var(--border-dim);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* ── Search Results Overlay ── */
.search-overlay {
  position: fixed;
  inset: 0;
  z-index: 5000;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(16px);
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding-top: 8rem;
  opacity: 0;
  transition: opacity 0.2s ease-out;
}

.search-overlay.open { 
  display: flex; 
  opacity: 1;
}

.search-modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  width: 90%;
  max-width: 600px;
  overflow: hidden;
  transform: translateY(-20px);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.2s;
}

.search-overlay.open .search-modal {
  transform: translateY(0);
  box-shadow: 0 8px 32px rgba(0, 255, 255, 0.1);
}

.search-modal:focus-within {
  border-color: var(--neon-cyan);
  box-shadow: var(--glow-cyan);
}

.search-modal-input-wrap {
  display: flex;
  align-items: center;
  padding: 1rem 1.25rem;
  gap: 0.75rem;
  border-bottom: 1px solid var(--border-dim);
}

.search-modal-input-wrap svg { color: var(--neon-cyan); flex-shrink: 0; }

.search-modal-input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--text-primary);
}

.search-modal-input::placeholder { color: var(--text-muted); }

.search-modal-categories {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  border-bottom: 1px solid var(--border-dim);
  overflow-x: auto;
  scrollbar-width: none;
}
.search-modal-categories::-webkit-scrollbar { display: none; }

.search-cat-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.75rem;
  border-radius: 100px;
  background: transparent;
  border: 1px solid var(--border-dim);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition);
}
.search-cat-btn:hover, .search-cat-btn.active {
  border-color: var(--neon-cyan);
  color: var(--neon-cyan);
  background: rgba(0,255,255,0.08);
  box-shadow: 0 0 8px rgba(0,255,255,0.2);
}

.search-results-header {
  padding: 0.75rem 1.25rem 0.5rem;
  font-family: var(--font-arcade);
  font-size: 0.45rem;
  color: var(--text-muted);
  background: var(--bg-secondary);
  text-transform: uppercase;
}

.search-modal-footer {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.75rem 1.25rem;
  border-top: 1px solid var(--border-dim);
  background: var(--bg-elevated);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
}
.search-modal-footer kbd {
  background: var(--bg-card);
  border: 1px solid var(--border-dim);
  border-radius: 3px;
  padding: 0.15rem 0.35rem;
  font-family: inherit;
  color: var(--text-secondary);
  margin-right: 0.2rem;
}

.search-results {
  max-height: 380px;
  overflow-y: auto;
}

.search-result-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.9rem 1.25rem;
  border-bottom: 1px solid var(--border-dim);
  cursor: pointer;
  transition: background var(--transition), padding-left var(--transition);
  text-decoration: none;
  color: var(--text-primary);
}

.search-result-item:hover, .search-result-item.selected {
  background: rgba(0,255,255,0.06);
  padding-left: 1.5rem;
}

.search-result-icon { font-size: 1.2rem; }

.search-result-info { flex: 1; }
.search-result-title { font-size: 0.88rem; font-weight: 600; color: var(--text-primary); }
.search-result-meta { font-family: var(--font-mono); font-size: 0.7rem; color: var(--text-tertiary); margin-top: 2px; }

.search-empty {
  padding: 2rem;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ── Arcade Easter Egg ── */
#konami-toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(120px);
  background: var(--neon-pink);
  color: #000;
  font-family: var(--font-arcade);
  font-size: 0.55rem;
  padding: 1rem 2rem;
  border-radius: var(--radius);
  box-shadow: var(--glow-pink);
  z-index: 9000;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  white-space: nowrap;
}

#konami-toast.show { transform: translateX(-50%) translateY(0); }

/* ── Article page ── */
.article-layout {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 2.5rem;
  max-width: 1100px;
  margin: 0 auto;
  padding: 3rem 2rem;
}

.article-content h1 {
  font-size: 1.8rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 1rem;
}

.article-content h2 {
  font-family: var(--font-arcade);
  font-size: 0.7rem;
  color: var(--neon-cyan);
  text-shadow: var(--glow-cyan);
  margin: 2.5rem 0 1rem;
  letter-spacing: 0.05em;
}

.article-content h2::before { content: '// '; color: var(--neon-pink); }

.article-content h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--neon-yellow);
  margin: 1.75rem 0 0.75rem;
}

.article-content p {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.article-content ul, .article-content ol {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.article-content li {
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--text-secondary);
  margin-bottom: 0.25rem;
}

.article-content code {
  font-family: var(--font-mono);
  font-size: 0.82em;
  background: var(--bg-elevated);
  padding: 0.1em 0.4em;
  border-radius: 3px;
  color: var(--neon-cyan);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-dim);
}

.article-meta-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.article-sidebar {
  position: sticky;
  top: 80px;
  align-self: start;
}

.sidebar-card {
  background: var(--bg-card);
  border: 1px solid var(--border-dim);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1rem;
}

.sidebar-card-title {
  font-family: var(--font-arcade);
  font-size: 0.5rem;
  color: var(--neon-yellow);
  text-shadow: var(--glow-yellow);
  margin-bottom: 1rem;
}

.toc-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.toc-list a {
  font-family: var(--font-mono);
  font-size: 0.73rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0;
  border-left: 2px solid transparent;
  padding-left: 0.75rem;
  transition: all var(--transition);
}

.toc-list a:hover, .toc-list a.active {
  color: var(--neon-cyan);
  border-left-color: var(--neon-cyan);
}

/* ── Challenge Box ── */
.challenge-box {
  border: 2px solid var(--neon-yellow);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin: 2rem 0;
  background: rgba(255,255,0,0.04);
  box-shadow: var(--glow-yellow);
  position: relative;
}

.challenge-box-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.challenge-box-icon { font-size: 1.5rem; }

.challenge-box-title {
  font-family: var(--font-arcade);
  font-size: 0.55rem;
  color: var(--neon-yellow);
  text-shadow: var(--glow-yellow);
}

/* ── Catalog page ── */
.catalog-filters {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.9rem;
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--border-dim);
  background: var(--bg-card);
  color: var(--text-secondary);
  transition: all var(--transition);
}

.filter-btn:hover { border-color: var(--neon-cyan); color: var(--neon-cyan); }
.filter-btn.active { border-color: var(--neon-cyan); color: var(--neon-cyan); background: rgba(0,255,255,0.08); }

/* ── Responsive ── */
@media (max-width: 900px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { display: none; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-links-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .navbar { padding: 0 1rem; }
  .navbar-links { display: none; }
  .navbar-search { max-width: 180px; }
  .hero { padding: 3rem 1rem 2.5rem; }
  .section { padding: 2.5rem 1rem; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .footer-links-grid { grid-template-columns: 1fr; }
}

/* ── Utility ── */
.pixel-corner {
  position: relative;
}
.pixel-corner::after {
  content: '';
  position: absolute;
  bottom: 0; right: 0;
  width: 12px; height: 12px;
  border-right: 2px solid var(--neon-cyan);
  border-bottom: 2px solid var(--neon-cyan);
}

.text-glow-pink { color: var(--neon-pink); text-shadow: var(--glow-pink); }
.text-glow-cyan { color: var(--neon-cyan); text-shadow: var(--glow-cyan); }
.text-glow-yellow { color: var(--neon-yellow); text-shadow: var(--glow-yellow); }

.blink {
  animation: blink 1s step-end infinite;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* ── Showcase Carousel ── */
.showcase-carousel-wrap {
  position: relative;
  margin: var(--space-xl) 0;
}

.showcase-carousel {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  gap: var(--space-lg);
  padding: var(--space-md) 0 var(--space-xl);
  scrollbar-width: none;
}

.showcase-carousel::-webkit-scrollbar {
  display: none;
}

.carousel-item {
  scroll-snap-align: center;
  flex: 0 0 85%;
  max-width: 800px;
  background: var(--bg-card);
  border: 1px solid var(--border-dim);
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  transition: transform var(--transition), border-color var(--transition);
}

.carousel-item:hover {
  border-color: var(--neon-pink);
  transform: translateY(-2px);
  box-shadow: var(--glow-pink);
}

.carousel-image {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  display: block;
}

.carousel-caption {
  padding: var(--space-md) var(--space-lg);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
  border-top: 1px solid var(--border-dim);
  background: var(--bg-secondary);
}

@media (min-width: 768px) {
  .carousel-item {
    flex: 0 0 70%;
  }
}

/* ==========================================
   PAGE: INDEX
   ========================================== */
.stars { position: absolute; inset: 0; overflow: hidden; pointer-events: none; }
.star { position: absolute; width: 2px; height: 2px; background: #fff; border-radius: 50%; animation: twinkle var(--d, 3s) ease-in-out infinite var(--delay, 0s); }
@keyframes twinkle { 0%, 100% { opacity: 0.1; transform: scale(1); } 50% { opacity: 0.8; transform: scale(1.5); } }
.hero-coins { position: absolute; bottom: 2rem; right: 2rem; font-family: var(--font-arcade); font-size: 0.5rem; color: var(--neon-yellow); text-shadow: var(--glow-yellow); animation: flicker 2s ease-in-out infinite; }
.featured-card { grid-column: span 2; display: grid; grid-template-columns: 1fr 1fr; gap: 0; }
.featured-card-visual { background: linear-gradient(135deg, rgba(255,0,255,0.15), rgba(0,255,255,0.1)); border-right: 1px solid var(--border-dim); display: flex; align-items: center; justify-content: center; font-size: 4rem; min-height: 180px; position: relative; overflow: hidden; }
.featured-card-visual::after { content: 'FEATURED'; position: absolute; top: 0.75rem; left: 0.75rem; font-family: var(--font-arcade); font-size: 0.4rem; color: var(--neon-pink); background: rgba(255,0,255,0.15); border: 1px solid rgba(255,0,255,0.3); padding: 0.25rem 0.5rem; border-radius: 2px; }
.featured-card-body { padding: 2rem; display: flex; flex-direction: column; justify-content: center; gap: 1rem; }
@media (max-width: 640px) { .featured-card { grid-column: span 1; grid-template-columns: 1fr; } .featured-card-visual { min-height: 120px; } }
.hiscore-row { display: flex; align-items: center; gap: 1rem; padding: 0.75rem 1rem; border-bottom: 1px solid var(--border-dim); font-family: var(--font-mono); font-size: 0.78rem; }
.hiscore-row:last-child { border-bottom: none; }
.hiscore-rank { font-family: var(--font-arcade); font-size: 0.5rem; width: 24px; text-align: center; color: var(--text-muted); }
.hiscore-rank.gold { color: var(--neon-yellow); text-shadow: var(--glow-yellow); }
.hiscore-rank.silver { color: #ccc; }
.hiscore-rank.bronze { color: #cd7f32; }
.hiscore-title { flex: 1; color: var(--text-primary); }
.hiscore-views { color: var(--neon-cyan); font-size: 0.7rem; }
.hiscore-bar { width: 60px; height: 4px; background: var(--border-dim); border-radius: 2px; overflow: hidden; }
.hiscore-bar-fill { height: 100%; background: linear-gradient(90deg, var(--neon-cyan), var(--neon-pink)); border-radius: 2px; }

/* ==========================================
   PAGE: CATALOG
   ========================================== */
.catalog-hero { padding: var(--space-xl) var(--space-xl) var(--space-lg); background: var(--bg-secondary); border-bottom: 1px solid var(--border-dim); }
.catalog-hero-inner { max-width: 1280px; margin: 0 auto; }
.catalog-hero h1 { font-family: var(--font-arcade); font-size: clamp(0.7rem, 2vw, 1rem); color: var(--neon-cyan); text-shadow: var(--glow-cyan); margin-bottom: 0.75rem; }
.catalog-hero p { color: var(--text-secondary); font-size: 0.95rem; max-width: 560px; }
.catalog-layout { display: grid; grid-template-columns: 220px 1fr; gap: var(--space-xl); max-width: 1280px; margin: 0 auto; padding: var(--space-xl) var(--space-xl); }
@media (max-width: 768px) { .catalog-layout { grid-template-columns: 1fr; } .catalog-sidebar { display: none; } }
.catalog-sidebar { position: sticky; top: 80px; align-self: start; }
.sidebar-nav { background: var(--bg-primary); border: 1px solid var(--border-dim); border-radius: var(--radius); overflow: hidden; }
.sidebar-nav-header { padding: 0.75rem 1rem; background: var(--bg-elevated); border-bottom: 1px solid var(--border-dim); font-family: var(--font-arcade); font-size: 0.45rem; color: var(--neon-yellow); text-shadow: var(--glow-yellow); }
.sidebar-nav-item { display: flex; align-items: center; gap: 0.75rem; padding: 0.7rem 1rem; border-bottom: 1px solid var(--border-dim); cursor: pointer; text-decoration: none; color: var(--text-secondary); font-size: 0.83rem; transition: all var(--transition); border-left: 3px solid transparent; }
.sidebar-nav-item:last-child { border-bottom: none; }
.sidebar-nav-item:hover, .sidebar-nav-item.active { color: var(--neon-cyan); background: rgba(0,255,255,0.05); border-left-color: var(--neon-cyan); }
.sidebar-nav-item .count { margin-left: auto; font-family: var(--font-mono); font-size: 0.65rem; color: var(--text-muted); }
.sidebar-nav-item.active .count { color: var(--neon-cyan); }
.catalog-main-header { display: flex; align-items: center; gap: 1rem; margin-bottom: 1.5rem; flex-wrap: wrap; }
.catalog-count { font-family: var(--font-mono); font-size: 0.8rem; color: var(--text-muted); margin-left: auto; }
.catalog-count span { color: var(--neon-cyan); font-weight: 700; }
.search-bar-inline { position: relative; margin-bottom: 1.25rem; }
.search-bar-inline input { width: 100%; background: var(--control-bg); border: 1px solid var(--control-border); border-radius: var(--radius); padding: var(--space-sm) var(--space-md) var(--space-sm) var(--space-xl); color: var(--text-primary); font-family: var(--font-mono); font-size: 0.83rem; outline: none; transition: border-color var(--transition), box-shadow var(--transition); }
.search-bar-inline input:focus { border-color: var(--control-focus); box-shadow: var(--glow-cyan); }
.search-bar-inline input::placeholder { color: var(--text-muted); }
.search-bar-inline .icon { position: absolute; left: 0.9rem; top: 50%; transform: translateY(-50%); color: var(--text-muted); }
.level-filter { display: flex; gap: 0.4rem; margin-bottom: 1.25rem; flex-wrap: wrap; }
.no-results { text-align: center; padding: 4rem 2rem; color: var(--text-muted); font-family: var(--font-mono); display: none; }
.no-results .emoji { font-size: 3rem; display: block; margin-bottom: 1rem; }

/* ==========================================
   PAGE: ARTICLE
   ========================================== */
.article-hero { background: var(--bg-secondary); border-bottom: 1px solid var(--border-dim); padding: 2.5rem 2rem; }
.article-hero-inner { max-width: 1100px; margin: 0 auto; }
.article-breadcrumb { display: flex; align-items: center; gap: 0.5rem; font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-muted); margin-bottom: 1.25rem; }
.article-breadcrumb a { color: var(--text-muted); }
.article-breadcrumb a:hover { color: var(--neon-cyan); }
.article-breadcrumb .sep { color: var(--border-glow); }
.article-hero h1 { font-size: clamp(1.4rem, 3vw, 2rem); font-weight: 700; line-height: 1.3; margin-bottom: 1rem; max-width: 700px; }
.callout { background: rgba(0,255,255,0.05); border: 1px solid rgba(0,255,255,0.2); border-left: 3px solid var(--neon-cyan); border-radius: 0 var(--radius) var(--radius) 0; padding: 1rem 1.25rem; margin: 1.5rem 0; font-size: 0.9rem; color: var(--text-secondary); }
.callout.warning { background: rgba(255,255,0,0.04); border-color: rgba(255,255,0,0.2); border-left-color: var(--neon-yellow); }
.callout.tip { background: rgba(0,255,136,0.04); border-color: rgba(0,255,136,0.2); border-left-color: var(--neon-green); }
.callout-label { font-family: var(--font-arcade); font-size: 0.45rem; margin-bottom: 0.5rem; color: var(--neon-cyan); }
.callout.warning .callout-label { color: var(--neon-yellow); }
.callout.tip .callout-label { color: var(--neon-green); }
.steps { counter-reset: step; }
.step { display: flex; gap: 1.25rem; margin-bottom: 2rem; align-items: flex-start; }
.step-num { flex-shrink: 0; width: 32px; height: 32px; background: var(--neon-cyan); color: #000; display: flex; align-items: center; justify-content: center; font-family: var(--font-arcade); font-size: 0.55rem; border-radius: 3px; box-shadow: var(--glow-cyan); margin-top: 2px; }
.step-body { flex: 1; }
.step-title { font-size: 1rem; font-weight: 600; margin-bottom: 0.5rem; color: var(--text-primary); }
.usecase-box { background: var(--bg-elevated); border: 1px solid var(--border-dim); border-radius: var(--radius); padding: 1.5rem; margin: 1.5rem 0; }
.usecase-box-header { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 1rem; font-family: var(--font-arcade); font-size: 0.5rem; color: var(--neon-orange); }
.article-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 3rem; padding-top: 2rem; border-top: 1px solid var(--border-dim); }
.article-nav-card { background: var(--bg-card); border: 1px solid var(--border-dim); border-radius: var(--radius); padding: 1rem 1.25rem; text-decoration: none; color: var(--text-primary); transition: all 0.2s; }
.article-nav-card:hover { border-color: var(--neon-cyan); color: var(--text-primary); }
.article-nav-label { font-family: var(--font-mono); font-size: 0.65rem; color: var(--text-muted); margin-bottom: 0.4rem; }
.article-nav-title { font-size: 0.88rem; font-weight: 600; }
.article-nav-card.next { text-align: right; }

/* ==========================================
   PAGE: ABOUT
   ========================================== */
.about-hero { padding: var(--space-2xl) var(--space-xl) var(--space-xl); position: relative; overflow: hidden; border-bottom: 1px solid var(--border-dim); }
.about-hero-grid { position: absolute; inset: 0; background-image: linear-gradient(rgba(255,0,255,0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,0,255,0.04) 1px, transparent 1px); background-size: 40px 40px; mask-image: radial-gradient(ellipse 90% 90% at 50% 50%, black, transparent); pointer-events: none; }
.about-hero-inner { max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: auto 1fr; gap: 3rem; align-items: center; position: relative; }
@media (max-width: 700px) { .about-hero-inner { grid-template-columns: 1fr; text-align: center; } .about-hero-inner .profile-avatar { margin: 0 auto; } }
.profile-avatar { width: 160px; height: 160px; position: relative; flex-shrink: 0; }
.profile-avatar-inner { width: 100%; height: 100%; background: linear-gradient(135deg, rgba(255,0,255,0.2), rgba(0,255,255,0.2)); border: 2px solid var(--neon-pink); border-radius: 8px; box-shadow: var(--glow-pink), inset 0 0 30px rgba(255,0,255,0.05); display: flex; align-items: center; justify-content: center; font-size: 5rem; animation: avatar-pulse 4s ease-in-out infinite; overflow: hidden; position: relative; }
@keyframes avatar-pulse { 0%, 100% { box-shadow: var(--glow-pink); } 50% { box-shadow: 0 0 24px #ff00ffcc, 0 0 48px #ff00ff55; } }
.profile-avatar-inner::after { content: ''; position: absolute; inset: 0; background: repeating-linear-gradient( 0deg, transparent, transparent 3px, rgba(0,0,0,0.12) 3px, rgba(0,0,0,0.12) 4px ); pointer-events: none; }
.profile-avatar-label { position: absolute; bottom: -12px; left: 50%; transform: translateX(-50%); background: var(--neon-pink); color: #000; font-family: var(--font-arcade); font-size: 0.38rem; padding: 0.25rem 0.6rem; border-radius: 2px; white-space: nowrap; box-shadow: var(--glow-pink); }
.profile-name { font-family: var(--font-arcade); font-size: clamp(0.8rem, 2.5vw, 1.2rem); color: var(--neon-cyan); text-shadow: var(--glow-cyan); line-height: 1.5; margin-bottom: 0.5rem; }
.profile-role { font-family: var(--font-mono); font-size: 0.9rem; color: var(--neon-pink); margin-bottom: 1rem; }
.profile-role::before { content: '> '; color: var(--neon-yellow); }
.profile-bio { font-size: 0.95rem; color: var(--text-secondary); line-height: 1.75; margin-bottom: var(--space-lg); }
.profile-links { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.xp-bar-wrap { max-width: 1100px; margin: 2.5rem auto 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--border-dim); border: 1px solid var(--border-dim); border-radius: var(--radius); overflow: hidden; }
@media (max-width: 640px) { .xp-bar-wrap { grid-template-columns: repeat(2,1fr); } }
.xp-stat { background: var(--bg-card); padding: 1.25rem 1.5rem; text-align: center; }
.xp-stat-val { font-family: var(--font-arcade); font-size: 1rem; display: block; margin-bottom: 0.4rem; }
.xp-stat-lbl { font-family: var(--font-mono); font-size: 0.68rem; color: var(--text-muted); }
.achievements-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1rem; }
.achievement-card { background: var(--bg-card); border: 1px solid var(--border-dim); border-radius: var(--radius); padding: 1.25rem 1.5rem; display: flex; align-items: center; gap: 1rem; transition: all 0.2s; position: relative; overflow: hidden; }
.achievement-card::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--ach-color, var(--neon-cyan)); }
.achievement-card:hover { border-color: var(--ach-color, var(--neon-cyan)); transform: translateX(4px); box-shadow: -4px 0 12px var(--ach-color, var(--neon-cyan))33; }
.achievement-icon { font-size: 2rem; flex-shrink: 0; filter: drop-shadow(0 0 6px var(--ach-color, var(--neon-cyan))); }
.achievement-name { font-size: 0.85rem; font-weight: 600; color: var(--text-primary); line-height: 1.3; }
.achievement-org { font-family: var(--font-mono); font-size: 0.68rem; color: var(--text-muted); margin-top: 0.2rem; }
.achievement-badge { margin-left: auto; flex-shrink: 0; font-family: var(--font-arcade); font-size: 0.38rem; padding: 0.2rem 0.4rem; background: rgba(0,255,255,0.1); color: var(--ach-color, var(--neon-cyan)); border: 1px solid var(--ach-color, var(--neon-cyan)); border-radius: 2px; }
.skills-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 0.75rem; }
.skill-bar { background: var(--bg-card); border: 1px solid var(--border-dim); border-radius: var(--radius); padding: 1rem 1.25rem; transition: border-color 0.2s; }
.skill-bar:hover { border-color: var(--skill-color, var(--neon-cyan)); }
.skill-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 0.6rem; }
.skill-name { font-family: var(--font-mono); font-size: 0.75rem; font-weight: 600; color: var(--text-primary); display: flex; align-items: center; gap: 0.4rem; }
.skill-level { font-family: var(--font-arcade); font-size: 0.38rem; color: var(--skill-color, var(--neon-cyan)); }
.skill-track { height: 6px; background: var(--border-dim); border-radius: 3px; overflow: hidden; }
.skill-fill { height: 100%; width: 0%; border-radius: 3px; background: var(--skill-color, var(--neon-cyan)); box-shadow: 0 0 6px var(--skill-color, var(--neon-cyan)); transition: width 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94); }
.story-block { background: var(--bg-card); border: 1px solid var(--border-dim); border-radius: var(--radius); padding: 2rem 2.5rem; max-width: 780px; margin: 0 auto; position: relative; }
.story-block::before { content: '"'; position: absolute; top: -1rem; left: 1.5rem; font-size: 5rem; color: var(--neon-pink); font-family: Georgia, serif; line-height: 1; opacity: 0.4; }
.story-block p { font-size: 1rem; line-height: 1.85; color: var(--text-tertiary); position: relative; }
.contact-strip { background: var(--bg-secondary); border-top: 1px solid var(--border-dim); border-bottom: 1px solid var(--border-dim); padding: var(--space-xl) var(--space-xl); text-align: center; }
.contact-strip h2 { font-family: var(--font-arcade); font-size: 0.75rem; color: var(--neon-yellow); text-shadow: var(--glow-yellow); margin-bottom: 1rem; }

/* ── Arcade Custom Cursors ── */
html, body, * {
  cursor: url('../img/cursor/pixel.cur'), auto;
}

a, a *, button, button *, [role="button"], [role="button"] *, 
input[type="submit"], input[type="button"], 
.sidebar-nav-item, .category-card, .article-card, 
.btn, .filter-btn, .search-result-item, .lang-btn, 
.btn-icon, .code-copy-btn, label, summary,
a[title], a [title], button[title], button [title], [role="button"][title], [role="button"] [title],
.sidebar-nav-item[title], .sidebar-nav-item [title],
.sidebar-sub-item[title], .sidebar-sub-item [title],
.btn[title], .btn [title], .filter-btn[title], .filter-btn [title],
.article-card[title], .article-card [title] {
  cursor: url('../img/cursor/pixel-link.cur'), pointer !important;
}

input, textarea, [data-open-search], .search-modal-input {
  cursor: url('../img/cursor/pixel-pencil-select.cur'), text !important;
}

[disabled], .disabled, [disabled] *, .disabled *, [disabled] [title], .disabled [title] {
  cursor: url('../img/cursor/pixel-no.cur'), not-allowed !important;
}

[title] {
  cursor: url('../img/cursor/pixel-help.cur'), help !important;
}