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

:root {
  --bg-primary: #0a0b0f;
  --bg-secondary: #0f1117;
  --bg-card: #141620;
  --bg-card-hover: #1a1c2a;
  --border: #1e2030;
  --border-hover: #2a2d42;
  --text-primary: #e4e4e7;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  --accent: #d4a043;
  --accent-dim: #b8892e;
  --accent-glow: rgba(212, 160, 67, 0.15);
  --accent-subtle: rgba(212, 160, 67, 0.08);
  --terminal-green: #4ade80;
  --terminal-bg: #0c0d12;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  --container: 1120px;
  --nav-height: 64px;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

/* === Container === */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* === Navigation === */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 100;
  background: rgba(10, 11, 15, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s;
}

.nav.scrolled {
  border-bottom-color: var(--border);
}

.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: -0.01em;
}

.logo-mark {
  color: var(--accent);
  margin-right: 2px;
}

.accent {
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color 0.2s;
}

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

.nav-cta {
  padding: 6px 16px;
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: border-color 0.2s, color 0.2s;
}

.nav-cta:hover {
  border-color: var(--accent-dim);
  color: var(--accent) !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--text-secondary);
  transition: transform 0.3s, opacity 0.3s;
}

/* === Hero === */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
  overflow: hidden;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  border: 1px solid var(--accent-dim);
  padding: 4px 12px;
  border-radius: 4px;
  margin-bottom: 24px;
  background: var(--accent-subtle);
}

.hero h1 {
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.025em;
  margin-bottom: 20px;
}

.hero-sub {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 480px;
  margin-bottom: 32px;
  line-height: 1.7;
}

.hero-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 10px 24px;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 6px;
  transition: all 0.2s;
  cursor: pointer;
  border: 1px solid transparent;
}

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

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

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

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

/* === Terminal === */
.terminal {
  background: var(--terminal-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.4);
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--border);
}

.terminal-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border-hover);
}

.terminal-title {
  margin-left: auto;
  font-size: 0.7rem;
  color: var(--text-muted);
}

.terminal-body {
  padding: 16px;
  min-height: 200px;
  max-height: 400px;
  overflow-y: auto;
}

.terminal-body::-webkit-scrollbar { width: 4px; }
.terminal-body::-webkit-scrollbar-track { background: transparent; }
.terminal-body::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.terminal-line {
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}

.terminal-prompt {
  color: var(--accent);
}

.terminal-cmd {
  color: var(--text-primary);
}

.terminal-cursor {
  color: var(--accent);
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.terminal-output {
  margin-top: 12px;
  color: var(--text-secondary);
  line-height: 1.8;
  font-size: 0.75rem;
}

.terminal-output .out-label {
  color: var(--text-muted);
}

.terminal-output .out-value {
  color: var(--terminal-green);
}

.terminal-output .out-accent, .out-line .out-accent {
  color: var(--accent);
}

.cmd-history {
  color: var(--text-primary);
  white-space: nowrap;
}

.out-line {
  color: var(--text-secondary);
  white-space: pre;
  font-size: 0.72rem;
  line-height: 1.6;
}

.out-line .out-ok { color: var(--terminal-green); }
.out-line .out-warn { color: #e8b339; }
.out-line .out-err { color: #d45050; }
.out-line .out-value { color: var(--terminal-green); }
.out-line .out-accent { color: var(--accent);
}

/* === Hero Background === */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.3;
}

.hero-bg canvas {
  width: 100%;
  height: 100%;
}

/* === Sections === */
.section {
  padding: 96px 0;
}

.section-alt {
  background: var(--bg-secondary);
}

.section-header {
  margin-bottom: 56px;
}

.section-header h2 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-bottom: 12px;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 520px;
}

/* === Services Grid === */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 28px;
  transition: border-color 0.2s, background 0.2s;
}

.service-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
}

.service-icon {
  color: var(--accent);
  margin-bottom: 16px;
}

.service-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.service-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 16px;
}

.code-example {
  background: var(--terminal-bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 10px 14px;
  overflow-x: auto;
}

.code-example code {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  white-space: nowrap;
}

/* === Platform === */
.platform-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: start;
}

.diagram {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 32px;
}

.diagram-layer {
  margin-bottom: 0;
}

.diagram-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.diagram-nodes {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.diagram-node {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 14px;
  font-size: 0.82rem;
  flex: 1;
  min-width: 120px;
  text-align: center;
}

.diagram-node .node-name {
  display: block;
  font-weight: 500;
  margin-bottom: 2px;
}

.diagram-node .node-desc {
  display: block;
  font-size: 0.7rem;
  color: var(--text-muted);
}

.node-highlight {
  border-color: var(--accent-dim);
  background: var(--accent-subtle);
}

.node-highlight .node-name {
  color: var(--accent);
}

.node-service {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.diagram-connector {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 0;
}

.connector-line {
  flex: 1;
  height: 1px;
  background: var(--border);
}

.connector-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.diagram-data {
  text-align: center;
}

.platform-text h3 {
  font-size: 1.35rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.platform-text p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 16px;
  line-height: 1.7;
}

.text-link {
  color: var(--accent);
  border-bottom: 1px solid var(--accent-dim);
  transition: border-color 0.2s;
}

.text-link:hover {
  border-color: var(--accent);
}

.platform-features {
  list-style: none;
  margin-top: 24px;
}

.platform-features li {
  position: relative;
  padding-left: 20px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.platform-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

/* === Government === */
.gov-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.gov-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 28px;
}

.gov-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-subtle);
  border: 1px solid var(--accent-dim);
  border-radius: 4px;
  padding: 4px 10px;
  margin-bottom: 16px;
}

.gov-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.gov-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* === About === */
.about-layout {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 64px;
  align-items: start;
}

.about-text h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.about-company {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 20px;
}

.about-text p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 16px;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.stat {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
  text-align: center;
}

.stat-value {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 4px;
}

.stat-label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* === Docs === */
.docs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.doc-card {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 28px;
  transition: border-color 0.2s, background 0.2s;
}

.doc-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
}

.doc-icon {
  color: var(--accent);
  margin-bottom: 14px;
}

.doc-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.doc-card p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.6;
  margin-bottom: 14px;
}

.doc-status {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* === Contact === */
.contact-layout {
  text-align: center;
  max-width: 480px;
  margin: 0 auto;
}

.contact-layout h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.contact-layout p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 28px;
  line-height: 1.7;
}

/* === Footer === */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-brand {
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

.footer-legal {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 0.825rem;
  color: var(--text-muted);
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--text-secondary);
}

/* === Fade-in animations === */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* === Responsive === */
@media (max-width: 900px) {
  .hero .container {
    grid-template-columns: 1fr;
    gap: 40px;
    padding-top: 40px;
    padding-bottom: 40px;
  }

  .hero {
    min-height: auto;
    padding-top: calc(var(--nav-height) + 40px);
    padding-bottom: 40px;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .platform-layout {
    grid-template-columns: 1fr;
  }

  .gov-grid {
    grid-template-columns: 1fr;
  }

  .about-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .docs-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
  }
}

@media (max-width: 600px) {
  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 16px 24px;
    gap: 16px;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .hero h1 {
    font-size: 1.75rem;
  }

  .section {
    padding: 64px 0;
  }

  .diagram-nodes {
    flex-direction: column;
  }

  .about-stats {
    grid-template-columns: 1fr 1fr;
  }
}