:root {
  --bg-primary: #06090f;
  --bg-secondary: #0c1018;
  --bg-card: #0f1520;
  --bg-terminal: #080c14;
  --fg-primary: #e8ecf1;
  --fg-secondary: #7a8599;
  --fg-muted: #4a5568;
  --accent: #00ff88;
  --accent-dim: #00cc6a;
  --accent-glow: rgba(0, 255, 136, 0.15);
  --danger: #ff4444;
  --warning: #ffaa00;
  --success: #00ff88;
  --border: rgba(255, 255, 255, 0.06);
  --font-display: 'Space Grotesk', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg-primary);
  color: var(--fg-primary);
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.7;
  overflow-x: hidden;
}

/* ===== NAV ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.25rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(6, 9, 15, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--fg-primary);
  letter-spacing: -0.02em;
}

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

.nav-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: var(--fg-secondary);
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  padding: 8rem 4rem 4rem;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(ellipse 600px 400px at 20% 50%, rgba(0, 255, 136, 0.04), transparent),
    radial-gradient(ellipse 400px 600px at 80% 30%, rgba(0, 100, 255, 0.03), transparent);
  pointer-events: none;
}

.hero-content { position: relative; z-index: 1; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.9rem;
  background: var(--accent-glow);
  border: 1px solid rgba(0, 255, 136, 0.2);
  border-radius: 100px;
  font-size: 0.7rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 2rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 5vw, 4.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--fg-primary);
  margin-bottom: 1.5rem;
}

.hero h1 em {
  font-style: normal;
  color: var(--accent);
  text-shadow: 0 0 40px rgba(0, 255, 136, 0.3);
}

.hero-sub {
  font-size: 1rem;
  color: var(--fg-secondary);
  max-width: 480px;
  line-height: 1.8;
  margin-bottom: 2rem;
}

.hero-stats {
  display: flex;
  gap: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.hero-stat-value {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--accent);
}

.hero-stat-label {
  font-size: 0.7rem;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Terminal block */
.hero-terminal {
  position: relative;
  z-index: 1;
  background: var(--bg-terminal);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  box-shadow:
    0 0 60px rgba(0, 255, 136, 0.05),
    0 20px 60px rgba(0, 0, 0, 0.5);
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--border);
}

.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.terminal-dot.red { background: #ff5f57; }
.terminal-dot.yellow { background: #febc2e; }
.terminal-dot.green { background: #28c840; }

.terminal-title {
  margin-left: 0.5rem;
  font-size: 0.7rem;
  color: var(--fg-muted);
}

.terminal-body {
  padding: 1.25rem 1.5rem;
  font-size: 0.8rem;
  line-height: 1.9;
  overflow-x: auto;
}

.terminal-body .prompt { color: var(--accent); }
.terminal-body .cmd { color: var(--fg-primary); }
.terminal-body .comment { color: var(--fg-muted); }
.terminal-body .result { color: var(--fg-secondary); }
.terminal-body .pass { color: var(--success); }
.terminal-body .fail { color: var(--danger); }
.terminal-body .warn { color: var(--warning); }
.terminal-body .score { color: var(--accent); font-weight: 600; font-size: 1.1rem; }

/* ===== THREAT ===== */
.threat {
  padding: 6rem 4rem;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.threat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
}

.threat-card {
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  position: relative;
  overflow: hidden;
}

.threat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
}

.threat-card.critical::before { background: var(--danger); box-shadow: 0 0 20px rgba(255, 68, 68, 0.3); }
.threat-card.warning::before { background: var(--warning); box-shadow: 0 0 20px rgba(255, 170, 0, 0.3); }
.threat-card.info::before { background: var(--accent); box-shadow: 0 0 20px var(--accent-glow); }

.threat-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.threat-card.critical .threat-number { color: var(--danger); }
.threat-card.warning .threat-number { color: var(--warning); }
.threat-card.info .threat-number { color: var(--accent); }

.threat-label {
  font-size: 0.75rem;
  color: var(--fg-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.75rem;
}

.threat-desc {
  font-size: 0.8rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

.section-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 1rem;
}

.section-heading {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
  max-width: 700px;
}

.section-sub {
  font-size: 0.9rem;
  color: var(--fg-secondary);
  max-width: 600px;
  margin-bottom: 3rem;
  line-height: 1.7;
}

/* ===== CAPABILITIES ===== */
.capabilities {
  padding: 6rem 4rem;
  max-width: 1200px;
  margin: 0 auto;
}

.cap-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.cap-card {
  padding: 2.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: border-color 0.3s;
}

.cap-card:hover {
  border-color: rgba(0, 255, 136, 0.2);
}

.cap-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-glow);
  border-radius: 8px;
  margin-bottom: 1.25rem;
  font-size: 1rem;
}

.cap-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.6rem;
  color: var(--fg-primary);
}

.cap-desc {
  font-size: 0.8rem;
  color: var(--fg-secondary);
  line-height: 1.7;
}

/* ===== PROTOCOL ===== */
.protocol {
  padding: 6rem 4rem;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.protocol-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.protocol-code {
  background: var(--bg-terminal);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2rem 2.5rem;
  font-size: 0.8rem;
  line-height: 2;
  overflow-x: auto;
  position: relative;
}

.protocol-code .key { color: var(--accent); }
.protocol-code .str { color: #a78bfa; }
.protocol-code .num { color: #f59e0b; }
.protocol-code .bool { color: #60a5fa; }
.protocol-code .comment { color: var(--fg-muted); }

.protocol-code::before {
  content: 'palisade.verify() response';
  position: absolute;
  top: 0.75rem;
  right: 1rem;
  font-size: 0.65rem;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ===== ARCHITECTURE ===== */
.architecture {
  padding: 6rem 4rem;
  max-width: 1100px;
  margin: 0 auto;
}

.arch-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

.arch-node {
  padding: 1.25rem 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  text-align: center;
  min-width: 160px;
}

.arch-node.palisade-node {
  border-color: rgba(0, 255, 136, 0.3);
  background: rgba(0, 255, 136, 0.05);
  box-shadow: 0 0 30px rgba(0, 255, 136, 0.08);
}

.arch-node-label {
  font-size: 0.65rem;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.3rem;
}

.arch-node-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
}

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

.arch-arrow {
  color: var(--fg-muted);
  font-size: 1.2rem;
}

/* ===== MANIFESTO ===== */
.manifesto {
  padding: 8rem 4rem;
  text-align: center;
  position: relative;
}

.manifesto::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse 800px 600px at 50% 50%, rgba(0, 255, 136, 0.04), transparent);
  pointer-events: none;
}

.manifesto-text {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 600;
  line-height: 1.4;
  max-width: 700px;
  margin: 0 auto 1.5rem;
  position: relative;
  letter-spacing: -0.01em;
}

.manifesto-sub {
  font-size: 0.85rem;
  color: var(--fg-secondary);
  max-width: 500px;
  margin: 0 auto;
  position: relative;
}

/* ===== FOOTER ===== */
.footer {
  padding: 2rem 4rem;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.7rem;
  color: var(--fg-muted);
}

.footer-logo {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--fg-secondary);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 7rem 1.5rem 3rem;
    min-height: auto;
  }

  .hero-terminal { margin-top: 1rem; }

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

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

  .threat,
  .capabilities,
  .protocol,
  .architecture,
  .manifesto {
    padding: 3rem 1.5rem;
  }

  .arch-flow {
    flex-direction: column;
  }

  .arch-arrow {
    transform: rotate(90deg);
  }

  .hero-stats {
    flex-wrap: wrap;
    gap: 1.5rem;
  }

  .footer {
    flex-direction: column;
    gap: 0.75rem;
    text-align: center;
    padding: 2rem 1.5rem;
  }
}

@media (max-width: 480px) {
  .nav { padding: 1rem 1.25rem; }
  .nav-status { display: none; }
}