/* ═══════════════════════════════════════════════════════════════
   mdx landing page
   Terminal-inspired, dark, modern. Reuses README's vibe.
   ═══════════════════════════════════════════════════════════════ */

:root {
  --bg: #0a0e12;
  --bg-elev: #121820;
  --bg-elev-2: #1a222c;
  --border: #2a3440;
  --border-soft: #1e2730;
  --text: #e4ecf3;
  --text-dim: #8a98a8;
  --text-muted: #566575;
  --accent: #7ee787;        /* green — like glow */
  --accent-2: #79c0ff;      /* blue — mermaid-ish */
  --accent-3: #ffa657;      /* amber — diagram accent */
  --accent-pink: #ff7eb6;
  --prompt: #7ee787;
  --red: #ff6b6b;
  --yellow: #f9c74f;
  --green: #7ee787;
  --glow: 0 0 24px rgba(126, 231, 135, 0.15);
  --mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', Consolas, monospace;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --radius: 10px;
  --radius-sm: 6px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* subtle grid + glow background */
.glow-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(126, 231, 135, 0.08), transparent 50%),
    radial-gradient(ellipse at 80% 40%, rgba(121, 192, 255, 0.06), transparent 50%),
    linear-gradient(var(--border-soft) 1px, transparent 1px) 0 0 / 40px 40px,
    linear-gradient(90deg, var(--border-soft) 1px, transparent 1px) 0 0 / 40px 40px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  opacity: 0.5;
}

.scanlines {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background: repeating-linear-gradient(
    0deg,
    rgba(255, 255, 255, 0.015) 0px,
    rgba(255, 255, 255, 0.015) 1px,
    transparent 1px,
    transparent 3px
  );
  mix-blend-mode: overlay;
}

main, header, footer { position: relative; z-index: 2; }

/* ───── nav ───── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: rgba(10, 14, 18, 0.75);
  border-bottom: 1px solid var(--border-soft);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 18px;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.5px;
}
.brand .prompt { color: var(--prompt); margin-right: 6px; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-links a {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.15s;
}
.nav-links a:hover { color: var(--accent); }
.gh-link { display: flex; align-items: center; }

/* ───── hero ───── */
.hero { padding: 80px 32px 60px; }
.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.hero-text { max-width: 560px; }

.badges {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.badges img { height: 20px; border-radius: 3px; }

h1 {
  font-family: var(--sans);
  font-size: clamp(32px, 4.5vw, 52px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 20px;
}
h1 .accent {
  color: var(--accent-2);
  position: relative;
}
h1 .accent-alt {
  color: var(--accent);
  position: relative;
  white-space: nowrap;
}

.tagline {
  font-size: 18px;
  color: var(--text-dim);
  margin-bottom: 36px;
  line-height: 1.5;
}
.tagline a {
  color: var(--accent-2);
  text-decoration: none;
  border-bottom: 1px dashed var(--accent-2);
}
.tagline code, .tagline a code {
  font-family: var(--mono);
  background: var(--bg-elev);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 15px;
  color: var(--accent);
  border: 1px solid var(--border-soft);
}

/* install box — the hero copy-paste */
.install-box {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 28px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3), var(--glow);
}
.install-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--bg-elev-2);
  border-bottom: 1px solid var(--border);
}
.dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  display: inline-block;
}
.dot.red { background: var(--red); }
.dot.yellow { background: var(--yellow); }
.dot.green { background: var(--green); }
.install-title, .terminal-title {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-muted);
  margin-left: 12px;
}
.install-body {
  display: flex;
  align-items: center;
  padding: 16px;
  gap: 12px;
  font-family: var(--mono);
  font-size: 13px;
  overflow-x: auto;
}
.install-body code {
  flex: 1;
  color: var(--text);
  white-space: nowrap;
}
.install-body code::before {
  content: '$ ';
  color: var(--prompt);
}
.copy-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  border-radius: var(--radius-sm);
  padding: 6px 8px;
  cursor: pointer;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.copy-btn:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(126, 231, 135, 0.08);
}
.copy-btn.copied {
  color: var(--accent);
  border-color: var(--accent);
}

/* buttons */
.cta-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.btn {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  padding: 12px 22px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: all 0.15s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.btn-primary {
  background: var(--accent);
  color: var(--bg);
  font-weight: 700;
}
.btn-primary:hover {
  background: #a5f2ae;
  box-shadow: 0 0 20px rgba(126, 231, 135, 0.4);
  transform: translateY(-1px);
}
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* hero visual — the terminal frame */
.hero-visual { display: flex; justify-content: center; }
.terminal {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.5),
    0 0 60px rgba(121, 192, 255, 0.08);
  width: 100%;
  max-width: 600px;
}
.terminal-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--bg-elev-2);
  border-bottom: 1px solid var(--border);
}
.terminal-body {
  padding: 0;
  background: #000;
  line-height: 0;
}
.terminal-body img {
  width: 100%;
  height: auto;
  display: block;
}

/* ───── sections ───── */
section { padding: 100px 32px; position: relative; }
.section-inner {
  max-width: 1200px;
  margin: 0 auto;
}
h2 {
  font-family: var(--sans);
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 48px;
}
h2 .prompt {
  font-family: var(--mono);
  color: var(--accent);
  margin-right: 12px;
}

/* ───── features ───── */
.features { border-top: 1px solid var(--border-soft); }
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.feature {
  background: var(--bg-elev);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 28px;
  transition: all 0.2s;
  position: relative;
  overflow: hidden;
}
.feature::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 60%, rgba(126, 231, 135, 0.03));
  pointer-events: none;
}
.feature:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(126, 231, 135, 0.08);
}
.feature-icon {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent-2);
  background: var(--bg-elev-2);
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
  border: 1px solid var(--border-soft);
  display: inline-block;
  min-height: 72px;
}
.feature-icon pre { font-family: inherit; line-height: 1.3; }
.feature h3 {
  font-family: var(--sans);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text);
}
.feature p {
  font-size: 14.5px;
  color: var(--text-dim);
  line-height: 1.6;
}
.feature code {
  font-family: var(--mono);
  background: var(--bg-elev-2);
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 12.5px;
  color: var(--accent);
}

/* ───── install section ───── */
.install-section { border-top: 1px solid var(--border-soft); background: linear-gradient(180deg, transparent, rgba(18, 24, 32, 0.4)); }
.install-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
  margin-bottom: 48px;
}
.install-card {
  background: var(--bg-elev);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 28px;
}
.install-card h3 {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--accent);
  margin-bottom: 10px;
}
.install-card h3::before { content: '» '; }
.install-desc {
  font-size: 14px;
  color: var(--text-dim);
  margin-bottom: 16px;
}
.install-card code {
  font-family: var(--mono);
  color: var(--accent-3);
  font-size: 12.5px;
  background: var(--bg-elev-2);
  padding: 1px 5px;
  border-radius: 3px;
}

.code-block {
  background: #06090c;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  font-family: var(--mono);
  font-size: 13px;
  overflow-x: auto;
}
.code-block pre { font-family: inherit; }
.code-block code { color: var(--text); background: none; padding: 0; }
.c-comment { color: var(--text-muted); font-style: italic; }

.usage-preview h3 {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--accent);
  margin-bottom: 14px;
}
.usage-preview h3::before { content: '» '; }

/* ───── why ───── */
.why { border-top: 1px solid var(--border-soft); }
.why blockquote {
  font-size: 20px;
  color: var(--text);
  line-height: 1.65;
  max-width: 800px;
  border-left: 3px solid var(--accent);
  padding-left: 24px;
  margin-bottom: 32px;
}
.why blockquote p + p { margin-top: 16px; }
.why code {
  font-family: var(--mono);
  color: var(--accent);
  background: var(--bg-elev);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 17px;
  border: 1px solid var(--border-soft);
}
.scope-note {
  background: var(--bg-elev);
  border: 1px solid var(--border-soft);
  border-left: 3px solid var(--accent-3);
  padding: 18px 22px;
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  font-size: 15px;
  max-width: 800px;
}
.scope-note strong { color: var(--accent-3); }
.scope-note code {
  font-family: var(--mono);
  color: var(--accent);
  background: var(--bg-elev-2);
  padding: 1px 6px;
  border-radius: 3px;
  font-size: 13px;
}
.scope-note a {
  color: var(--accent-2);
  text-decoration: none;
  border-bottom: 1px dashed var(--accent-2);
}

/* ───── cta ───── */
.cta { border-top: 1px solid var(--border-soft); padding-bottom: 120px; }
.cta-box {
  background:
    radial-gradient(ellipse at 30% 0%, rgba(126, 231, 135, 0.12), transparent 60%),
    var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 60px 48px;
  text-align: center;
}
.cta-box h2 {
  margin-bottom: 12px;
  font-size: clamp(32px, 4vw, 48px);
}
.cta-box p {
  font-size: 18px;
  color: var(--text-dim);
  margin-bottom: 32px;
}
.cta-box .cta-row { justify-content: center; }

/* ───── footer ───── */
footer {
  border-top: 1px solid var(--border-soft);
  padding: 28px 32px;
  font-family: var(--mono);
  font-size: 13px;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
footer .prompt { color: var(--prompt); }
footer .dim { color: var(--text-muted); margin-left: 8px; }
.footer-links { display: flex; gap: 20px; }
.footer-links a {
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.15s;
}
.footer-links a:hover { color: var(--accent); }

/* ───── responsive ───── */
@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .hero { padding: 48px 24px; }
  section { padding: 72px 24px; }
  .nav-inner { padding: 14px 20px; }
  .nav-links { gap: 16px; }
  .nav-links a:not(.gh-link) { display: none; }
  .cta-box { padding: 40px 24px; }
}

@media (max-width: 500px) {
  .install-body { font-size: 11.5px; padding: 14px; }
  .cta-row { flex-direction: column; }
  .cta-row .btn { width: 100%; }
  h1 { font-size: 32px; }
  .badges { gap: 4px; }
  .badges img { height: 18px; }
}

/* prefers reduced motion */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}