@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:ital,wght@0,400;0,500;0,600;0,700;1,400&display=swap');

:root {
  --bg-obsidian: #05060a;
  --bg-elevated: #0b0d14;
  --bg-card: rgba(13, 16, 26, 0.72);
  --bg-card-hover: rgba(18, 23, 38, 0.85);
  --bg-glass: rgba(8, 10, 18, 0.78);
  --bg-terminal: #07090f;

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.14);
  --border-cyan: rgba(0, 240, 255, 0.38);
  --border-blue: rgba(59, 130, 246, 0.4);

  --accent-cyan: #00f0ff;
  --accent-blue: #3b82f6;
  --accent-indigo: #6366f1;
  --accent-violet: #8b5cf6;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --shadow-glow-cyan: 0 0 25px rgba(0, 240, 255, 0.15);
  --shadow-glow-blue: 0 0 35px rgba(59, 130, 246, 0.18);
  --shadow-card: 0 20px 50px rgba(0, 0, 0, 0.6);
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  background-color: var(--bg-obsidian);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.65;
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Subtle Architectural Grid + Ambient Aurora Backdrop */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(circle at 50% -10%, rgba(59, 130, 246, 0.16), rgba(0, 240, 255, 0.05) 35%, transparent 70%),
    radial-gradient(circle at 85% 25%, rgba(99, 102, 241, 0.09), transparent 50%),
    linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 48px 48px, 48px 48px;
  pointer-events: none;
  z-index: -2;
}

#ag-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -1;
  opacity: 0.7;
}

/* =========================================================
   STICKY GLASSMORPHIC NAVIGATION BAR
   ========================================================= */
.ag-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-glass);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-subtle);
}

.ag-nav-container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0.9rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.ag-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  border: none !important;
  background: transparent !important;
}

.ag-brand-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid rgba(0, 240, 255, 0.35);
  padding: 0.3rem 0.55rem;
  border-radius: 6px;
  text-shadow: 0 0 8px rgba(0, 240, 255, 0.6);
  letter-spacing: -0.02em;
}

.ag-brand-name {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.ag-brand-name span.ag-slash {
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  font-weight: 400;
}

.ag-nav-links {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.ag-nav-link {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 0.45rem 0.85rem;
  border-radius: 8px;
  border: 1px solid transparent !important;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.ag-nav-link:hover,
.ag-nav-link.active {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border-subtle) !important;
}

.ag-nav-link.ag-nav-pay {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.06);
  border: 1px solid rgba(0, 240, 255, 0.22) !important;
}

.ag-nav-link.ag-nav-pay:hover {
  background: rgba(0, 240, 255, 0.14);
  border-color: var(--accent-cyan) !important;
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.2);
}

.ag-nav-cta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: #05060a !important;
  background: linear-gradient(135deg, var(--accent-cyan) 0%, #60a5fa 100%) !important;
  padding: 0.55rem 1.1rem;
  border-radius: 8px;
  text-decoration: none;
  border: none !important;
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.25);
  transition: all 0.2s ease;
}

.ag-nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 28px rgba(0, 240, 255, 0.45);
  color: #05060a !important;
}

/* =========================================================
   CYBER-NEON CLI ASCII CAT EMBLEM
   ========================================================= */
.cli-cat-wrapper {
  display: inline-flex;
  flex-direction: column;
  background: rgba(7, 9, 15, 0.9);
  border: 1px solid rgba(0, 240, 255, 0.3);
  border-radius: 12px;
  padding: 0.85rem 1.25rem;
  box-shadow:
    0 0 30px rgba(0, 240, 255, 0.12),
    inset 0 0 20px rgba(0, 240, 255, 0.04);
  position: relative;
  overflow: hidden;
  margin-bottom: 1.5rem;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
}

.cli-cat-wrapper:hover {
  border-color: var(--accent-cyan);
  box-shadow:
    0 0 40px rgba(0, 240, 255, 0.28),
    inset 0 0 25px rgba(0, 240, 255, 0.08);
  transform: translateY(-2px);
}

.cli-cat-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  padding-bottom: 0.45rem;
  margin-bottom: 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.cli-status-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 8px var(--accent-emerald);
  margin-right: 0.4rem;
}

.cli-cat-body {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.cat-ascii {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  line-height: 1.18;
  color: var(--accent-cyan);
  text-shadow:
    0 0 8px rgba(0, 240, 255, 0.8),
    0 0 18px rgba(0, 240, 255, 0.45),
    0 0 32px rgba(59, 130, 246, 0.35);
  white-space: pre;
  margin: 0;
  user-select: none;
  transition: color 0.25s ease, text-shadow 0.25s ease;
}

.cli-cat-meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  line-height: 1.5;
  text-align: left;
}

.cli-cat-meta strong {
  color: var(--text-primary);
  display: block;
  font-size: 0.8rem;
}

.cli-cat-meta code {
  color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.08);
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
}

/* =========================================================
   TYPOGRAPHY & GENERAL LAYOUT
   ========================================================= */
.ag-container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 3.5rem 1.5rem 5rem;
}

.ag-article-container {
  max-width: 880px;
  margin: 0 auto;
  padding: 3rem 1.5rem 5rem;
}

h1, h2, h3, h4 {
  font-family: var(--font-sans);
  letter-spacing: -0.03em;
  color: var(--text-primary);
  line-height: 1.15;
}

.ag-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid rgba(0, 240, 255, 0.25);
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  margin-bottom: 1.25rem;
}

.ag-gradient-text {
  background: linear-gradient(135deg, #ffffff 0%, #bae6fd 45%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

a {
  color: var(--accent-cyan);
  text-decoration: none;
  transition: all 0.2s ease;
}

a:hover {
  color: #60a5fa;
}

/* =========================================================
   BUTTONS
   ========================================================= */
.ag-btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  color: #05060a !important;
  background: linear-gradient(135deg, var(--accent-cyan) 0%, #38bdf8 50%, #60a5fa 100%);
  padding: 0.9rem 1.65rem;
  border-radius: 10px;
  border: none !important;
  box-shadow: 0 0 25px rgba(0, 240, 255, 0.28);
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  text-decoration: none;
}

.ag-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 38px rgba(0, 240, 255, 0.5);
  color: #05060a !important;
}

.ag-btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-primary) !important;
  background: rgba(255, 255, 255, 0.04);
  padding: 0.9rem 1.65rem;
  border-radius: 10px;
  border: 1px solid var(--border-medium) !important;
  backdrop-filter: blur(10px);
  cursor: pointer;
  transition: all 0.25s ease;
  text-decoration: none;
}

.ag-btn-secondary:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: var(--accent-cyan) !important;
  box-shadow: var(--shadow-glow-cyan);
}

/* =========================================================
   BENTO CARDS & GLASS SURFACES
   ========================================================= */
.ag-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 2rem;
  box-shadow: var(--shadow-card);
  transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
  position: relative;
  overflow: hidden;
}

.ag-card:hover {
  border-color: rgba(0, 240, 255, 0.28);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.75), 0 0 25px rgba(0, 240, 255, 0.08);
}

/* =========================================================
   SEMANTIC TRIPLES & ENTITY GRAPH NODES
   ========================================================= */
.definition-lead {
  font-size: 1.12rem;
  line-height: 1.7;
  color: var(--text-primary);
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.06) 0%, rgba(59, 130, 246, 0.04) 100%);
  border: 1px solid rgba(0, 240, 255, 0.28);
  border-left: 4px solid var(--accent-cyan);
  padding: 1.65rem 1.85rem;
  border-radius: 12px;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-glow-cyan);
}

.definition-lead strong {
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.semantic-triples-block {
  background: rgba(7, 9, 15, 0.85);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 1.5rem;
  margin: 1.5rem 0;
}

.semantic-triples-block h3 {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-cyan);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.Semantic-triples-block h3::before,
.semantic-triples-block h3::before {
  content: "◈";
  color: var(--accent-cyan);
}

.triples-list {
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  padding-left: 0;
}

.triples-list li {
  margin-bottom: 0.85rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.triples-list li:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.subject {
  color: var(--accent-cyan);
  font-weight: 600;
  background: rgba(0, 240, 255, 0.09);
  border: 1px solid rgba(0, 240, 255, 0.25);
  padding: 0.2rem 0.6rem;
  border-radius: 6px;
}

.predicate {
  color: #60a5fa;
  font-style: normal;
  font-size: 0.78rem;
  padding: 0 0.25rem;
}

.object {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 0.2rem 0.6rem;
  border-radius: 6px;
}

/* =========================================================
   ARTICLE & BLOG TYPOGRAPHY
   ========================================================= */
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  padding: 0.45rem 0.95rem;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 2rem;
  text-decoration: none;
}

.breadcrumb:hover {
  color: var(--accent-cyan);
  border-color: var(--border-cyan);
  background: rgba(0, 240, 255, 0.06);
}

article h1 {
  font-size: clamp(2rem, 4vw, 3.1rem);
  font-weight: 800;
  margin-bottom: 1.75rem;
  letter-spacing: -0.035em;
  background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 65%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

article h2 {
  font-size: clamp(1.4rem, 2.5vw, 1.85rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-top: 3rem;
  margin-bottom: 1rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--border-subtle);
}

article h3 {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--accent-cyan);
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

article p {
  font-size: 1.06rem;
  color: var(--text-secondary);
  margin-bottom: 1.4rem;
  line-height: 1.75;
}

article ul, article ol {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
  color: var(--text-secondary);
  font-size: 1.05rem;
}

article li {
  margin-bottom: 0.6rem;
}

article code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.08);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
}

/* Tables in Articles */
article table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  overflow: hidden;
  font-size: 0.95rem;
}

article th, article td {
  padding: 1rem 1.2rem;
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
}

article th {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.05);
}

article td:first-child {
  font-family: var(--font-mono);
  color: var(--text-primary);
  font-weight: 600;
}

/* FAQ Items */
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--accent-blue);
  border-radius: 10px;
  padding: 1.4rem 1.6rem;
  margin-bottom: 1rem;
}

.faq-item h4 {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.faq-item p {
  margin-bottom: 0;
  font-size: 0.96rem;
}

/* Author E-E-A-T Bio Block */
.bio-block {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  padding: 1.75rem 2rem;
  border-radius: 14px;
  margin-top: 3.5rem;
}

.bio-avatar {
  width: 68px;
  height: 68px;
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.15), rgba(59, 130, 246, 0.25));
  border: 1px solid var(--accent-cyan);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--accent-cyan);
  text-shadow: 0 0 10px rgba(0, 240, 255, 0.5);
  flex-shrink: 0;
}

.bio-content h3 {
  margin-top: 0;
  margin-bottom: 0.35rem;
  font-family: var(--font-sans);
  font-size: 1.15rem;
  color: var(--text-primary);
}

.bio-content p {
  margin-bottom: 0;
  font-size: 0.92rem;
  color: var(--text-secondary);
}

/* CTA Card */
.cta-card {
  background: radial-gradient(circle at top right, rgba(0, 240, 255, 0.12), rgba(59, 130, 246, 0.08), rgba(13, 16, 26, 0.9));
  border: 1px solid rgba(0, 240, 255, 0.3);
  padding: 2.75rem 2rem;
  text-align: center;
  border-radius: 16px;
  margin-top: 3rem;
  box-shadow: var(--shadow-glow-cyan);
}

.cta-card h2 {
  border: none;
  margin-top: 0;
  padding-bottom: 0;
  font-size: 1.75rem;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, var(--accent-cyan) 0%, #3b82f6 100%);
  color: #05060a !important;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  padding: 0.9rem 1.8rem;
  border-radius: 10px;
  margin-top: 0.75rem;
  border: none !important;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  box-shadow: 0 0 24px rgba(0, 240, 255, 0.35);
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 36px rgba(0, 240, 255, 0.55);
  color: #05060a !important;
}

/* Footer */
.ag-footer, footer {
  max-width: 1240px;
  margin: 4rem auto 0;
  padding: 2.5rem 1.5rem;
  border-top: 1px solid var(--border-subtle);
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .ag-nav-container {
    flex-direction: column;
    align-items: flex-start;
  }
  .bio-block {
    flex-direction: column;
    text-align: center;
  }
}