@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: #1a1a24;
  --bg-code: #0d0d12;
  --accent-purple: #a855f7;
  --accent-blue: #3b82f6;
  --accent-green: #22c55e;
  --accent-cyan: #06b6d4;
  --accent-gold: #fbbf24;
  --text-primary: #ffffff;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;
  --border-subtle: #27272a;
  --border-accent: #3f3f46;
  --signal-allow: #22c55e;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

body::before {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: 
    radial-gradient(ellipse at 20% 20%, rgba(168, 85, 247, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(59, 130, 246, 0.06) 0%, transparent 50%);
  pointer-events: none;
  z-index: -1;
}

a { color: inherit; }

/* Navigation */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 1rem 2rem;
}

.nav-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand { display: flex; align-items: center; gap: 1rem; }

.nav-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent-purple);
  text-decoration: none;
}

.azure-badge {
  font-size: 0.7rem;
  color: var(--accent-cyan);
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--accent-cyan);
  border-radius: 4px;
  opacity: 0.8;
}

.nav-langs { display: flex; gap: 0.25rem; }

.lang-btn {
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 0.7rem;
  cursor: pointer;
  transition: all 0.2s;
}

.lang-btn:hover, .lang-btn.active {
  background: var(--accent-purple);
  border-color: var(--accent-purple);
  color: white;
}

/* Hero */
.hero {
  padding: 10rem 2rem 4rem;
  max-width: 1400px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  margin-bottom: 1.5rem;
}

.badge-label {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-purple);
  letter-spacing: 0.1em;
}

.badge-sub {
  font-size: 0.9rem;
  color: var(--text-muted);
  text-transform: lowercase;
}

.hero-tag {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 700px;
  margin-bottom: 2rem;
}

.code-block {
  background: var(--bg-code);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--accent-purple);
  padding: 1.5rem;
  margin: 2rem 0;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  color: var(--text-secondary);
  max-width: 800px;
  line-height: 1.8;
}

.compliance-tags { display: flex; gap: 0.5rem; flex-wrap: wrap; }

.tag {
  padding: 0.5rem 1rem;
  border: 1px solid var(--border-accent);
  border-radius: 999px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  transition: all 0.2s;
}

.tag:hover { border-color: var(--accent-purple); color: var(--text-primary); }

/* MCP Banner */
.mcp-banner {
  background: linear-gradient(135deg, rgba(251, 191, 36, 0.1) 0%, rgba(168, 85, 247, 0.1) 100%);
  border-top: 1px solid var(--accent-gold);
  border-bottom: 1px solid var(--accent-gold);
  padding: 1.5rem 2rem !important;
}

.mcp-highlight {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.mcp-first {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--accent-gold);
}

.mcp-highlight .mcp-package {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9rem;
  color: var(--text-primary);
  background: var(--bg-code);
  padding: 0.5rem 1rem;
  border-radius: 4px;
}

.mcp-highlight .mcp-date {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Sections */
.section {
  max-width: 1400px;
  margin: 0 auto;
  padding: 4rem 2rem;
  border-top: 1px solid var(--border-subtle);
}

.section-header { margin-bottom: 2rem; }

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  color: var(--accent-purple);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

.section-header h2 {
  font-size: 1.75rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Products Grid */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 1.5rem;
}

.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 1.5rem;
  text-decoration: none;
  transition: border-color 0.2s;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.product-card:hover { border-color: var(--accent-purple); }

.product-gtin {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  color: var(--accent-cyan);
}

.product-token {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--accent-gold);
  background: rgba(251, 191, 36, 0.1);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  display: inline-block;
}

.product-name {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.product-details {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.signal-badge {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  font-weight: 600;
  background: rgba(34, 197, 94, 0.15);
  color: var(--signal-allow);
  border: 1px solid var(--signal-allow);
}

/* 7-Signal Stack */
.signals-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
}

.signal-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 1.25rem;
  text-decoration: none;
  text-align: center;
  transition: all 0.2s;
}

.signal-card:hover { border-color: var(--accent-purple); transform: translateY(-2px); }

.signal-card.signal-active {
  border-color: var(--signal-allow);
  background: rgba(34, 197, 94, 0.1);
}

.signal-code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9rem;
  color: var(--text-primary);
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.signal-state {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.signal-active .signal-state { color: var(--signal-allow); }

/* Endpoints */
.endpoints-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1rem;
}

.endpoint-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 1.25rem;
}

.endpoint-card.highlight {
  border-color: var(--accent-gold);
  background: rgba(251, 191, 36, 0.05);
}

.endpoint-method {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9rem;
  color: var(--accent-cyan);
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.endpoint-card.highlight .endpoint-method {
  color: var(--accent-gold);
}

.endpoint-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
}

.endpoint-example {
  display: block;
  background: var(--bg-code);
  padding: 0.75rem;
  border-radius: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--text-muted);
  overflow-x: auto;
}

/* Stack Diagram */
.stack-diagram {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-width: 600px;
}

.stack-layer {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  text-decoration: none;
  transition: all 0.2s;
}

.stack-layer:hover { border-color: var(--accent-purple); }

.stack-layer.stack-current {
  border-color: var(--accent-purple);
  background: rgba(168, 85, 247, 0.1);
}

.stack-domain {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  color: var(--accent-cyan);
  min-width: 180px;
}

.stack-arrow { color: var(--text-muted); }

.stack-role {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.stack-marker {
  font-size: 0.75rem;
  color: var(--accent-purple);
  margin-left: auto;
}

/* Infrastructure */
.infra-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
}

.infra-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 1.25rem;
}

.infra-provider {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.infra-region {
  font-size: 0.85rem;
  color: var(--accent-cyan);
  margin-bottom: 0.5rem;
}

.infra-role {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* MCP Section */
.mcp-info {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 2rem;
}

.mcp-badge {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--bg-card);
  border: 1px solid var(--accent-purple);
  border-radius: 8px;
  padding: 1rem 1.5rem;
}

.mcp-label {
  font-size: 0.75rem;
  color: var(--accent-purple);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.mcp-package {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9rem;
  color: var(--text-primary);
}

.mcp-version {
  font-size: 0.8rem;
  color: var(--signal-allow);
  background: rgba(34, 197, 94, 0.15);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
}

.mcp-links { display: flex; gap: 1rem; flex-wrap: wrap; }

.mcp-link {
  font-size: 0.9rem;
  color: var(--accent-cyan);
  text-decoration: none;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  transition: all 0.2s;
}

.mcp-link:hover {
  border-color: var(--accent-cyan);
  background: rgba(6, 182, 212, 0.1);
}

/* Footer */
.footer {
  border-top: 1px solid var(--border-subtle);
  padding: 3rem 2rem;
  text-align: center;
}

.footer-inner {
  max-width: 1400px;
  margin: 0 auto;
}

.footer-main {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.footer-main a {
  color: var(--accent-purple);
  text-decoration: none;
}

.footer-main a:hover { text-decoration: underline; }

.footer-social {
  margin-bottom: 0.5rem;
}

.footer-social a {
  color: var(--accent-cyan);
  text-decoration: none;
  font-size: 0.85rem;
}

.footer-ai {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Responsive */
@media (max-width: 768px) {
  .hero { padding: 7rem 1rem 2rem; }
  .section { padding: 3rem 1rem; }
  .products-grid { grid-template-columns: 1fr; }
  .signals-grid { grid-template-columns: repeat(auto-fit, minmax(100px, 1fr)); }
  .stack-layer { flex-wrap: wrap; }
  .stack-domain { min-width: auto; }
  .mcp-badge { flex-wrap: wrap; }
  .mcp-highlight { flex-direction: column; text-align: center; }
}