:root {
  color-scheme: dark;
  --bg-start: #0a0a0f;
  --bg-end: #1a1a2e;
  --text: #e6e6f0;
  --muted: #a7a7bc;
  --accent-start: #6366f1;
  --accent-end: #8b5cf6;
  --surface: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  display: grid;
  grid-template-rows: 1fr auto;
  background:
    radial-gradient(circle at top, rgba(99, 102, 241, 0.18), transparent 34rem),
    linear-gradient(135deg, var(--bg-start), var(--bg-end));
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a {
  color: inherit;
}

.page-shell {
  width: 100%;
  min-height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 96px 24px 56px;
}

.hero {
  width: min(100%, 720px);
  text-align: center;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(3rem, 8vw, 6rem);
  line-height: 0.95;
  letter-spacing: -0.06em;
}

.tagline {
  margin: 24px 0 0;
  color: var(--text);
  font-size: clamp(1.15rem, 3vw, 1.45rem);
  font-weight: 600;
}

.description {
  max-width: 620px;
  margin: 22px auto 0;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.7;
}

.cta-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 42px;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 58px;
  padding: 16px 24px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
  box-shadow: 0 16px 42px rgba(99, 102, 241, 0.24);
  color: #ffffff;
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.cta-button:hover,
.cta-button:focus-visible {
  border-color: rgba(255, 255, 255, 0.34);
  box-shadow: 0 20px 56px rgba(139, 92, 246, 0.34);
  transform: translateY(-2px) scale(1.02);
}

.cta-button:focus-visible,
.language-button:focus-visible {
  outline: 2px solid rgba(230, 230, 240, 0.9);
  outline-offset: 3px;
}

.cta-button-secondary {
  background: var(--surface);
  backdrop-filter: blur(16px);
}

.language-toggle {
  position: fixed;
  top: 22px;
  right: 22px;
  z-index: 2;
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(10, 10, 15, 0.58);
  backdrop-filter: blur(14px);
}

.language-button {
  min-width: 42px;
  padding: 8px 10px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-size: 0.82rem;
  font-weight: 700;
  transition: background 180ms ease, color 180ms ease;
}

.language-button.is-active {
  background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
  color: #ffffff;
}

.footer {
  padding: 24px;
  color: rgba(230, 230, 240, 0.62);
  font-size: 0.92rem;
  text-align: center;
}

@media (max-width: 600px) {
  .page-shell {
    padding: 88px 18px 40px;
  }

  .language-toggle {
    top: 14px;
    right: 14px;
  }

  h1 {
    font-size: 3rem;
  }

  .tagline {
    font-size: 1.08rem;
  }

  .description {
    font-size: 1rem;
  }

  .cta-grid {
    grid-template-columns: 1fr;
    margin-top: 34px;
  }

  .cta-button {
    width: 100%;
  }
}