/* === TOKENS === */
:root {
  --bg: #0a0f1a;
  --bg-alt: #0f1422;
  --fg: #e8e4dc;
  --fg-dim: #7a7870;
  --accent: #00e5c0;
  --accent-dim: rgba(0,229,192,0.15);
  --card: #111827;
  --border: rgba(232,228,220,0.08);
  --tag-bg: rgba(0,229,192,0.12);
  --tag-text: #00e5c0;
  --mono-bg: #0d1117;
  --mono-border: rgba(0,229,192,0.2);
}

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

/* === BASE === */
html { font-size: 16px; scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* === NAV === */
.nav {
  border-bottom: 1px solid var(--border);
  padding: 0 40px;
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  height: 60px;
  display: flex;
  align-items: center;
  gap: 20px;
}
.nav-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--accent);
  letter-spacing: -0.02em;
}
.nav-tagline {
  font-size: 0.8rem;
  color: var(--fg-dim);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* === HERO === */
.hero { padding: 80px 40px 64px; }
.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.hero-eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.hero-headline {
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin-bottom: 20px;
}
.hero-lede {
  font-size: 1rem;
  color: var(--fg-dim);
  line-height: 1.7;
  max-width: 400px;
}

/* === TERMINAL === */
.hero-terminal {
  background: var(--mono-bg);
  border: 1px solid var(--mono-border);
  border-radius: 10px;
  overflow: hidden;
  font-family: 'IBM Plex Mono', monospace;
}
.terminal-header {
  background: rgba(0,229,192,0.07);
  border-bottom: 1px solid var(--mono-border);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--fg-dim);
  opacity: 0.4;
}
.terminal-dot:first-child { background: #ff5f57; opacity: 1; }
.terminal-dot:nth-child(2) { background: #ffbd2e; opacity: 1; }
.terminal-dot:nth-child(3) { background: #28ca41; opacity: 1; }
.terminal-title { font-size: 0.72rem; color: var(--fg-dim); margin-left: 8px; }
.terminal-body { padding: 16px 20px; display: flex; flex-direction: column; gap: 10px; }
.terminal-line { font-size: 0.78rem; color: #c9d1d9; line-height: 1.5; }
.t-dim { color: var(--fg-dim); }
.t-success { color: var(--accent); }
.t-blink { color: var(--accent); animation: blink 1.2s step-end infinite; }
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

/* === ACTIVITY === */
.activity { padding: 64px 40px; border-top: 1px solid var(--border); }
.activity-inner { max-width: 1100px; margin: 0 auto; }
.section-label {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-dim);
  font-weight: 500;
  margin-bottom: 40px;
  font-family: 'IBM Plex Mono', monospace;
}
.activity-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
.capability-card {
  background: var(--card);
  padding: 32px 28px;
  position: relative;
}
.cap-icon {
  color: var(--accent);
  margin-bottom: 16px;
}
.capability-card h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.capability-card p {
  font-size: 0.85rem;
  color: var(--fg-dim);
  line-height: 1.65;
}
.cap-tag {
  position: absolute;
  top: 20px;
  right: 20px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.68rem;
  color: var(--tag-text);
  background: var(--tag-bg);
  padding: 3px 8px;
  border-radius: 4px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* === PRINCIPLES === */
.principles { padding: 64px 40px; border-top: 1px solid var(--border); background: var(--bg-alt); }
.principles-inner { max-width: 700px; margin: 0 auto; }
.principles-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-dim);
  margin-bottom: 40px;
}
.principles-rule {
  display: flex;
  gap: 28px;
  align-items: flex-start;
  margin-bottom: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
}
.principles-rule:last-child { border-bottom: none; }
.rule-num {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem;
  color: var(--accent);
  padding-top: 2px;
  flex-shrink: 0;
}
.rule-text {
  font-size: 1rem;
  color: var(--fg-dim);
  line-height: 1.7;
}

/* === CLOSING === */
.closing { padding: 64px 40px; border-top: 1px solid var(--border); }
.closing-inner { max-width: 1100px; margin: 0 auto; text-align: center; }
.closing-statement {
  font-size: clamp(1.2rem, 2.5vw, 1.6rem);
  color: var(--fg-dim);
  line-height: 1.6;
  max-width: 640px;
  margin: 0 auto 48px;
  font-weight: 400;
}
.closing-rule {
  width: 48px;
  height: 2px;
  background: var(--accent);
  margin: 0 auto;
  border-radius: 2px;
}

/* === FOOTER === */
.footer { padding: 40px 40px 32px; border-top: 1px solid var(--border); }
.footer-inner { max-width: 1100px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; }
.footer-brand { font-weight: 700; font-size: 0.9rem; color: var(--accent); }
.footer-note { font-size: 0.78rem; color: var(--fg-dim); }

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .hero { padding: 48px 24px 40px; }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-terminal { order: -1; }
  .activity { padding: 48px 24px; }
  .activity-grid { grid-template-columns: 1fr; }
  .principles { padding: 48px 24px; }
  .closing { padding: 48px 24px; }
  .nav { padding: 0 24px; }
  .footer { padding: 32px 24px 24px; }
  .footer-inner { flex-direction: column; gap: 8px; align-items: flex-start; }
}