/* ========================================
   Gods from the Machine — machine-gods theme
   Dark terminal aesthetic with cyan/purple/pink accents
   ======================================== */

:root {
  --bg: #0a0a0f;
  --bg-card: #111118;
  --bg-code: #0d1117;
  --border: #1e1e2e;
  --text: #c9c9d4;
  --text-muted: #666680;
  --text-bright: #e8e8f0;
  --cyan: #00d4ff;
  --purple: #7b2ff7;
  --pink: #ff006e;
  --green: #00ff88;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'SF Mono', monospace;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max-width: 960px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--cyan);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--purple);
}

/* ---- Navigation ---- */

.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 2rem;
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

.nav-brand {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--text-bright);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.nav-brand .hex {
  width: 24px;
  height: 24px;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--cyan);
}

/* ---- Main content ---- */

main {
  flex: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem 2rem;
  width: 100%;
}

/* ---- Hero (home page) ---- */

.hero {
  text-align: center;
  padding: 4rem 0 3rem;
}

.hero-logo {
  max-width: 420px;
  margin: 0 auto 1.5rem;
}

.hero-tagline {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-muted);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text);
  max-width: 600px;
  margin: 0 auto 2rem;
  line-height: 1.8;
}

.hero-inspiration {
  font-size: 0.85rem;
  color: var(--text-muted);
  max-width: 520px;
  margin: 0 auto 2.5rem;
  font-style: italic;
  line-height: 1.6;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 0.7rem 1.8rem;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.2s;
  letter-spacing: 0.5px;
}

.btn-primary {
  background: var(--cyan);
  color: #000;
  font-weight: 600;
}

.btn-primary:hover {
  background: #00b8e0;
  color: #000;
}

.btn-outline {
  border: 1px solid var(--border);
  color: var(--text);
}

.btn-outline:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

/* ---- Section headings ---- */

.section-heading {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--purple);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

h1 {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 1rem;
  letter-spacing: 0.5px;
}

h2 {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-bright);
  margin: 2.5rem 0 1rem;
  letter-spacing: 0.5px;
}

h3 {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-bright);
  margin: 2rem 0 0.75rem;
}

/* ---- Cards ---- */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.5rem;
  transition: border-color 0.2s, transform 0.2s;
}

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

.card-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.card-title {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-bright);
}

.card-lang {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.lang-go { background: #00add820; color: #00d4ff; }
.lang-zig { background: #f7a41d20; color: #f7a41d; }
.lang-rust { background: #ff006e20; color: #ff006e; }

.card-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.card-status {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.5px;
}

.status-active { color: var(--green); }
.status-complete { color: var(--cyan); }
.status-stub { color: var(--text-muted); }

.card-link {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  margin-top: 0.5rem;
}

/* ---- Principles ---- */

.principles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
  margin: 2rem 0;
}

.principle {
  padding: 1.25rem;
  border-left: 3px solid var(--purple);
  background: var(--bg-card);
  border-radius: 0 8px 8px 0;
}

.principle-name {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 0.4rem;
}

.principle-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ---- Architecture diagram ---- */

.arch-diagram {
  max-width: 100%;
  margin: 2rem auto;
  display: block;
}

/* ---- Prose content ---- */

.prose p {
  margin-bottom: 1rem;
}

.prose ul, .prose ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

.prose li {
  margin-bottom: 0.4rem;
}

.prose code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--bg-code);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  color: var(--cyan);
}

.prose pre {
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem;
  overflow-x: auto;
  margin-bottom: 1.5rem;
  font-size: 0.85rem;
  line-height: 1.6;
}

.prose pre code {
  background: none;
  padding: 0;
  color: var(--text);
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

.prose th {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  text-align: left;
  padding: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.prose td {
  padding: 0.75rem;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}

.prose blockquote {
  border-left: 3px solid var(--purple);
  padding: 0.75rem 1.25rem;
  margin: 1.5rem 0;
  background: var(--bg-card);
  border-radius: 0 8px 8px 0;
  color: var(--text-muted);
  font-style: italic;
}

.prose strong {
  color: var(--text-bright);
}

.prose hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.5rem 0;
}

/* ---- Roadmap ---- */

.phase {
  position: relative;
  padding-left: 2rem;
  margin-bottom: 2.5rem;
}

.phase::before {
  content: '';
  position: absolute;
  left: 6px;
  top: 8px;
  bottom: -20px;
  width: 2px;
  background: var(--border);
}

.phase:last-child::before {
  bottom: 8px;
}

.phase-dot {
  position: absolute;
  left: 0;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid var(--border);
  background: var(--bg);
}

.phase-dot.done {
  background: var(--green);
  border-color: var(--green);
}

.phase-dot.active {
  background: var(--cyan);
  border-color: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
}

.phase-dot.future {
  background: var(--bg);
  border-color: var(--text-muted);
}

.phase-title {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 0.5rem;
}

.phase-status {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-left: 0.5rem;
}

.phase-items {
  list-style: none;
  padding: 0;
}

.phase-items li {
  font-size: 0.85rem;
  color: var(--text-muted);
  padding: 0.2rem 0;
}

.phase-items li::before {
  content: '';
  display: inline-block;
  width: 14px;
  height: 14px;
  margin-right: 0.5rem;
  vertical-align: middle;
  border-radius: 3px;
}

.phase-items li.done::before {
  background: var(--green);
  content: '';
}

.phase-items li.todo::before {
  border: 1.5px solid var(--text-muted);
  content: '';
}

/* ---- Token budget table ---- */

.token-table {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.5rem;
  margin: 1.5rem 0;
}

/* ---- Footer ---- */

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

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

.footer a {
  color: var(--text-muted);
}

.footer a:hover {
  color: var(--cyan);
}

/* ---- Feature grid (home) ---- */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin: 2rem 0;
}

.feature {
  text-align: center;
  padding: 1.5rem 1rem;
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
  display: block;
}

.feature-title {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 0.4rem;
}

.feature-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ---- Quick start terminal ---- */

.terminal {
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  margin: 2rem 0;
}

.terminal-bar {
  background: #1a1a2e;
  padding: 0.5rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  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 {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-left: 0.75rem;
}

.terminal-body {
  padding: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.8;
  color: var(--text);
}

.terminal-body .prompt {
  color: var(--green);
  user-select: none;
}

.terminal-body .comment {
  color: var(--text-muted);
}

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

/* ---- Responsive ---- */

@media (max-width: 768px) {
  .nav-inner {
    flex-direction: column;
    height: auto;
    padding: 0.75rem 0;
    gap: 0.5rem;
  }

  .nav-links {
    gap: 1rem;
  }

  .hero {
    padding: 2rem 0;
  }

  h1 {
    font-size: 1.5rem;
  }

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

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

  main {
    padding: 2rem 1rem;
  }
}