:root {
  --bg: #0a0a0a;
  --fg: #e0e0e0;
  --dim: #666;
  --accent: #fff;
  --mono: 'JetBrains Mono', 'Fira Code', ui-monospace, monospace;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --measure: 56rem;
}

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

html { font-size: 16px; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  opacity: 0;
}

body.ready { opacity: 1; }

/* ---- Nav ---- */

#nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 2rem;
  background: rgba(10, 10, 10, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.logo {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--dim);
  letter-spacing: 0.02em;
  flex-shrink: 0;
}

#locale-bar {
  display: flex;
  gap: 0.25rem;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.lp {
  all: unset;
  padding: 0.15rem 0.45rem;
  border-radius: 3px;
  font-family: var(--mono);
  font-size: 0.6rem;
  color: var(--dim);
  cursor: pointer;
  border: 1px solid transparent;
}

.lp:hover { color: var(--fg); }

.lp.active {
  color: var(--accent);
  border-color: rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.04);
}

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

main {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 1.5rem 2rem 3rem;
}

section { margin-bottom: 2rem; }

.hero { padding-top: 5rem; margin-bottom: 2.5rem; }

/* ---- Typography — consistent scale across all locales ---- */

h1 {
  font-size: clamp(2.2rem, 4.5vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--accent);
  margin-bottom: 1rem;
}

h2 {
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--accent);
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

p {
  font-size: 1rem;
  line-height: 1.65;
  color: var(--dim);
  margin-bottom: 0.75rem;
}

p.large {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--fg);
  opacity: 0.75;
}

/* ---- Terminal ---- */

.terminal {
  background: #111;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 6px;
  padding: 1rem 1.25rem;
  margin: 1rem 0;
  font-family: var(--mono);
  font-size: 0.85rem;
  color: #4ade80;
  overflow-x: auto;
  white-space: nowrap;
}

.terminal code::before {
  content: '$ ';
  color: var(--dim);
}

/* ---- CTA ---- */

.cta { text-align: center; }
.cta .terminal { display: inline-block; }

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

footer {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 1.5rem 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

footer p { font-size: 0.8rem; }

.credit {
  font-size: 0.7rem;
  margin-top: 0.5rem;
}

.credit a {
  color: var(--fg);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ---- Cycle hint ---- */

#hint {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--dim);
  opacity: 0;
  pointer-events: none;
  white-space: nowrap;
}

#hint.visible { opacity: 0.5 !important; }

#hint kbd {
  display: inline-block;
  padding: 0.1rem 0.4rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 3px;
  font-family: inherit;
  font-size: inherit;
  line-height: 1.4;
  margin: 0 0.1rem;
}

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

@media (max-width: 640px) {
  #nav { padding: 0.5rem 1rem; }
  main { padding: 1rem 1rem 2rem; }
  .hero { padding-top: 4.5rem; }
  section { margin-bottom: 1.5rem; }
}