:root {
  --bg: #0b1020;
  --bg-soft: #121934;
  --card: rgba(255,255,255,0.06);
  --line: rgba(255,255,255,0.12);
  --text: #f3f6ff;
  --muted: #b7c0dd;
  --brand: #7c8cff;
  --brand-2: #5eead4;
  --shadow: 0 20px 60px rgba(0,0,0,0.35);
  --radius: 20px;
  --max: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(124,140,255,0.18), transparent 30%),
    radial-gradient(circle at top right, rgba(94,234,212,0.12), transparent 28%),
    linear-gradient(180deg, #0b1020 0%, #0d1328 100%);
  color: var(--text);
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }
.container { width: min(calc(100% - 32px), var(--max)); margin: 0 auto; }

.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(14px);
  background: rgba(11, 16, 32, 0.65);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  letter-spacing: 0.3px;
}

.brand-mark {
  width: auto;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: #08111f;
  font-weight: 900;
  box-shadow: var(--shadow);
  padding: 0 10px;
}

.brand-logo {
  display: block;
  width: 60px;
  height: auto;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 18px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 0.96rem;
}

.language-switcher {
  appearance: none;
  background: rgba(255,255,255,0.06);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 14px;
  font: inherit;
  cursor: pointer;
}

.hero {
  padding: 88px 0 42px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 28px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(124,140,255,0.24);
  background: rgba(124,140,255,0.08);
  color: #dce2ff;
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 0.88rem;
  margin-bottom: 18px;
}

h1 {
  margin: 0 0 18px;
  font-size: clamp(2.4rem, 5vw, 4.2rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.lead {
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 1.08rem;
  max-width: 780px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 22px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 18px;
  border-radius: 14px;
  font-weight: 700;
  transition: transform .18s ease, border-color .18s ease, background .18s ease;
}

.button:hover { transform: translateY(-1px); }

.button-primary {
  background: linear-gradient(135deg, var(--brand), #95a0ff);
  color: #08111f;
  box-shadow: var(--shadow);
}

.button-secondary {
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.04);
  color: var(--text);
}

.hero-note {
  color: var(--muted);
  font-size: 0.95rem;
}

.hero-card,
.card {
  background: linear-gradient(180deg, rgba(255,255,255,0.07), rgba(255,255,255,0.04));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 24px;
  border-radius: calc(var(--radius) + 4px);
}

.code {
  margin: 0;
  overflow: auto;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.95rem;
  color: #dfe5ff;
  line-height: 1.75;
}

section {
  padding: 34px 0;
}

.section-head {
  margin-bottom: 22px;
  max-width: 840px;
}

.section-head h2 {
  margin: 0 0 10px;
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  letter-spacing: -0.03em;
}

.section-head p {
  margin: 0;
  color: var(--muted);
}

#about .section-head {
  max-width: none;
}

.grid-2,
.grid-3,
.grid-4 {
  display: grid;
  gap: 18px;
}

.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.card h3 {
  margin: 0 0 10px;
  font-size: 1.1rem;
}

.card p,
.card li {
  margin: 0;
  color: var(--muted);
}

.principle-number,
.benefit-number {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  margin-bottom: 14px;
  border-radius: 12px;
  background: rgba(124,140,255,0.12);
  color: #dbe1ff;
  font-weight: 800;
  border: 1px solid rgba(124,140,255,0.22);
}

.benefit-number { width: 42px; height: 42px; }

.results .card,
.repos .card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 220px;
}

.repo-tag,
.audience-tag {
  display: inline-block;
  margin-bottom: 14px;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 0.82rem;
  color: #dce2ff;
  background: rgba(124,140,255,0.08);
  border: 1px solid rgba(124,140,255,0.22);
}

.repo-link {
  display: inline-flex;
  margin-top: 18px;
  font-weight: 700;
  color: var(--brand-2);
}

.manifesto {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.quote {
  font-size: 1.04rem;
  color: #e8ecff;
  margin: 0;
}

.quote strong { color: white; }

.footer {
  padding: 40px 0 56px;
  color: var(--muted);
  font-size: 0.95rem;
}

.footer-card {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
}

[hidden] {
  display: none !important;
}

@media (max-width: 980px) {
  .hero-grid,
  .manifesto,
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .nav-right {
    width: 100%;
    justify-content: space-between;
  }

  .nav-links {
    display: none;
  }
}

@media (max-width: 640px) {
  .nav-inner {
    flex-direction: column;
    align-items: stretch;
    padding: 14px 0;
  }

  .nav-right {
    justify-content: flex-end;
  }

  .language-switcher {
    width: 100%;
  }
}