:root {
  --bg-canvas: #111418;
  --bg-panel: #171c22;
  --bg-subtle: #1f262e;
  --bg-hover: #262f39;
  --border-default: #2a3440;
  --border-strong: #3c4a5b;
  --text-primary: #e8eef5;
  --text-secondary: #94a5b8;
  --text-muted: #617285;
  --accent: #5b9bd5;
  --accent-hover: #4684be;
  --accent-text: #080b0f;
}

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

html {
  scroll-behavior: smooth;
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
  min-height: 100vh;
  line-height: 1.6;
  position: relative;
  overflow-x: hidden;
}

.tactical-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(to right, rgba(91, 155, 213, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(91, 155, 213, 0.04) 1px, transparent 1px);
  background-size: 40px 40px;
}

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 40;
  height: 64px;
  background: rgba(23, 28, 34, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-default);
}

.nav-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-logo {
  height: 36px;
  width: auto;
  display: block;
}

.brand-divider {
  width: 1px;
  height: 20px;
  background: var(--border-default);
}

.brand-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  transition: color 0.15s ease;
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.lang-switch {
  display: inline-flex;
  background: var(--bg-subtle);
  border: 1px solid var(--border-default);
  border-radius: 4px;
  padding: 2px;
}

.lang-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 3px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.lang-btn.active {
  background: var(--accent);
  color: var(--accent-text);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  font-size: 13px;
  font-weight: 600;
  border-radius: 4px;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.15s ease;
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-sm {
  padding: 7px 12px;
  font-size: 12px;
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-text);
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-secondary {
  background: var(--bg-subtle);
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.btn-secondary:hover {
  background: var(--bg-hover);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--border-default);
}

.btn-ghost:hover {
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.icon {
  width: 15px;
  height: 15px;
}

/* Hero */
.hero {
  padding: 72px 0 64px;
  border-bottom: 1px solid var(--border-default);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 40px;
  align-items: center;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 10px;
  background: var(--bg-panel);
  border: 1px solid var(--border-default);
  border-radius: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.06em;
  margin-bottom: 18px;
}

.pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.65); }
  70% { box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.hero h1 {
  font-size: clamp(2rem, 3.6vw, 3rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.025em;
  margin-bottom: 18px;
}

.hero-lead {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 28px;
  max-width: 560px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 34px;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  padding-top: 22px;
  border-top: 1px solid var(--border-default);
}

.metric-val {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
}

.metric-lbl {
  display: block;
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
}

/* Interactive Console */
.console-panel {
  background: #0b0e12;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.45);
}

.console-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border-default);
  gap: 8px;
}

.console-tabs {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.console-tab {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  padding: 4px 8px;
  border-radius: 3px;
  cursor: pointer;
}

.console-tab.active {
  background: var(--bg-subtle);
  border-color: var(--border-strong);
  color: var(--accent);
}

.console-status {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: #10b981;
  font-weight: 700;
  white-space: nowrap;
}

.console-body {
  padding: 16px;
  min-height: 290px;
  max-height: 310px;
  overflow-y: auto;
}

.console-pre {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  line-height: 1.55;
  color: #cfe0f5;
  white-space: pre-wrap;
  word-break: break-word;
}

.console-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: var(--bg-panel);
  border-top: 1px solid var(--border-default);
  gap: 8px;
}

.mono-muted {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--text-muted);
}

.mini-btn {
  background: var(--bg-subtle);
  border: 1px solid var(--border-default);
  color: var(--text-primary);
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  padding: 3px 9px;
  border-radius: 3px;
  cursor: pointer;
}

.mini-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* Sections & Cards */
.section {
  padding: 68px 0;
}

.section-alt {
  background: rgba(23, 28, 34, 0.55);
  border-top: 1px solid var(--border-default);
  border-bottom: 1px solid var(--border-default);
}

.section-head {
  max-width: 680px;
  margin-bottom: 36px;
}

.eyebrow {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.section-head h2 {
  font-size: clamp(1.5rem, 2.5vw, 2.1rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
}

.section-head p {
  font-size: 14px;
  color: var(--text-secondary);
}

.cards-grid {
  display: grid;
  gap: 20px;
}

.cols-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.cols-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.mt-24 {
  margin-top: 24px;
}

.card {
  background: var(--bg-panel);
  border: 1px solid var(--border-default);
  border-radius: 6px;
  padding: 22px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

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

.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  gap: 8px;
}

.card-code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--text-muted);
}

.badge-accent {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 3px;
  background: rgba(91, 155, 213, 0.12);
  border: 1px solid rgba(91, 155, 213, 0.35);
  color: var(--accent);
}

.card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}

.card p {
  font-size: 13px;
  color: var(--text-secondary);
}

.spec-list {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--border-default);
  list-style: none;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.spec-list li::before {
  content: "> ";
  color: var(--accent);
}

/* Architecture Diagram */
.arch-diagram {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 18px;
  align-items: center;
}

.arch-node {
  background: var(--bg-panel);
  border: 1px solid var(--border-default);
  border-radius: 6px;
  padding: 20px;
}

.arch-node-highlight {
  border-color: var(--accent);
  background: linear-gradient(180deg, rgba(91, 155, 213, 0.08), var(--bg-panel));
}

.node-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 6px;
}

.arch-node h4 {
  font-size: 16px;
  margin-bottom: 6px;
}

.arch-node p {
  font-size: 13px;
  color: var(--text-secondary);
}

.arch-arrow {
  text-align: center;
  padding: 0 8px;
}

.arrow-label {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: #10b981;
  margin-bottom: 4px;
}

.arrow-line {
  font-family: 'JetBrains Mono', monospace;
  font-size: 16px;
  color: var(--accent);
  letter-spacing: 2px;
}

/* Code Grid */
.code-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.code-card {
  background: #0b0e12;
  border: 1px solid var(--border-default);
  border-radius: 6px;
  overflow: hidden;
}

.code-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border-default);
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 600;
}

.copy-btn {
  background: var(--bg-subtle);
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 3px;
  cursor: pointer;
}

.copy-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.code-card pre {
  padding: 16px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  line-height: 1.6;
  color: #d6e4f5;
  overflow-x: auto;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border-default);
  padding: 44px 0 28px;
  background: var(--bg-panel);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}

.footer-logos {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 10px;
}

.footer-urielsec {
  height: 30px;
  width: auto;
}

.footer-urielscan {
  height: 28px;
  width: auto;
}

.footer-note {
  font-size: 12px;
  color: var(--text-muted);
  max-width: 340px;
}

.footer-links {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-col h4 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 4px;
}

.footer-col a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 13px;
}

.footer-col a:hover {
  color: var(--text-primary);
  text-decoration: underline;
}

.footer-bottom {
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid var(--border-default);
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-muted);
}

@media (max-width: 960px) {
  .hero-grid,
  .cols-3,
  .cols-2,
  .code-grid,
  .arch-diagram {
    grid-template-columns: 1fr;
  }
  .nav-links {
    display: none;
  }
  .hero-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .arch-arrow {
    padding: 6px 0;
  }
  .arrow-line {
    transform: rotate(90deg);
    display: inline-block;
  }
}

@media (max-width: 640px) {
  .container {
    padding: 0 16px;
  }
  .brand-divider,
  .brand-tag {
    display: none;
  }
  .brand-logo {
    height: 30px;
  }
  .hero {
    padding: 44px 0 40px;
  }
  .section {
    padding: 44px 0;
  }
  .hero-cta .btn {
    width: 100%;
    justify-content: center;
  }
  .console-body {
    padding: 12px;
    min-height: 240px;
  }
  .console-footer,
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}