:root {
  --bg: #0d1117;
  --bg-alt: #161b22;
  --accent: #2563eb;
  --text: #e6edf3;
  --text-muted: #9aa4b6;
  --card: #1f2937;
  --radius: 16px;
  --shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.hero {
  background: radial-gradient(circle at top left, rgba(37, 99, 235, 0.35), transparent),
    linear-gradient(135deg, rgba(37, 99, 235, 0.65), rgba(49, 46, 129, 0.55));
  padding: 48px 24px 140px;
  text-align: center;
}

.top-bar {
  display: flex;
  align-items: center;
  justify-content: end;
  gap: 24px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.top-bar__logo {
  font-weight: 700;
  font-size: 1.2rem;
  color: #fff;
}

.top-bar__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.top-bar__nav a {
  color: rgba(255, 255, 255, 0.85);
  font-weight: 500;
}

.top-bar__nav a:hover {
  color: #fff;
  text-decoration: none;
}

.lang-switcher {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.lang-switcher button {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 6px 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.lang-switcher button:hover {
  background: rgba(255, 255, 255, 0.24);
  border-color: rgba(255, 255, 255, 0.4);
}

.lang-switcher .is-active-lang {
  background: #fff;
  color: #0f172a;
  border-color: #fff;
}

.hero__content {
  max-width: 720px;
  margin: 0 auto;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.hero h1 {
  font-size: clamp(3rem, 6vw, 4.5rem);
  margin-bottom: 16px;
}

.hero p {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.85);
}

.cta {
  display: inline-block;
  margin-top: 32px;
  padding: 14px 32px;
  background: #fff;
  color: #0f172a;
  font-weight: 600;
  border-radius: 999px;
  box-shadow: var(--shadow);
}
.cta-secondary {
  display: inline-block;
  margin-top: 24px;
  margin-left: 12px;
  padding: 14px 32px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  color: var(--text);
  font-weight: 600;
  transition: border-color 0.2s ease, color 0.2s ease;
}
.cta-secondary:hover {
  border-color: #fff;
  color: #fff;
  text-decoration: none;
}

.section {
  padding: 96px 24px;
}

.section--alt {
  background: var(--bg-alt);
}

.section__inner {
  max-width: 1080px;
  margin: 0 auto;
}

.section h2 {
  font-size: clamp(2.4rem, 4vw, 3rem);
  margin-bottom: 32px;
}

.grid {
  display: grid;
  gap: 24px;
}

.grid--cols2 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card,
.module-card,
.roadmap-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.card h3,
.module-card h3,
.roadmap-card h3 {
  margin-top: 0;
  margin-bottom: 12px;
  font-size: 1.4rem;
}

.card--link {
  display: flex;
  flex-direction: column;
}

.card-link {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #fff;
  font-weight: 600;
}

.card-link::after {
  content: "→";
  font-size: 1.1rem;
  transition: transform 0.2s ease;
}

.card-link:hover::after {
  transform: translateX(4px);
}

.card ul,
.module-card ul,
.roadmap-card ul {
  padding-left: 18px;
  margin-top: 12px;
  color: var(--text-muted);
}

.module-grid {
  display: grid;
  gap: 28px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.module-card--secondary {
  border: 1px dashed rgba(255, 255, 255, 0.15);
}

.roadmap-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.footer {
  background: #0b0f1a;
  padding: 60px 24px;
  margin-top: 80px;
}

.footer__inner {
  max-width: 1080px;
  margin: 0 auto 32px;
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.footer__inner h4,
.footer__inner h5 {
  margin: 0 0 12px;
}

.footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
  color: var(--text-muted);
}

.footer li {
  margin-bottom: 8px;
}

.footer__legal {
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.85rem;
}

@media (max-width: 768px) {
  .top-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .top-bar__nav {
    gap: 12px;
  }

  .lang-switcher {
    justify-content: flex-start;
  }
}

/* Wiki */
.wiki-body {
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.wiki-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 32px;
  background: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  flex-wrap: wrap;
  gap: 16px;
}
.wiki-logo {
  font-weight: 700;
  font-size: 1.2rem;
  color: #fff;
}
.wiki-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}
.wiki-nav a {
  color: var(--text-muted);
}
.wiki-nav a:hover {
  color: #fff;
}
.wiki-content {
  flex: 1;
  padding: 60px 24px 80px;
}
.wiki-article {
  max-width: 880px;
  margin: 0 auto;
  background: var(--card);
  padding: 48px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, 0.05);
}
.wiki-article h1 {
  margin-top: 0;
  font-size: 2.6rem;
}
.wiki-article section + section {
  margin-top: 32px;
}
.wiki-article ul {
  padding-left: 20px;
  color: var(--text-muted);
}
.wiki-footer {
  text-align: center;
  padding: 32px;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.85rem;
}
.wiki-card-grid {
  margin-top: 32px;
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.wiki-card {
  display: block;
  background: rgba(31, 41, 55, 0.85);
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, border-color 0.2s ease;
  color: var(--text);
}
.wiki-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.2);
}
.wiki-card h2 {
  margin: 0 0 8px;
  font-size: 1.4rem;
}

.legal-page {
  min-height: 100vh;
  padding: 120px 24px 80px;
  background: radial-gradient(circle at top left, rgba(37, 99, 235, 0.15), transparent),
    var(--bg);
}

.legal-language-bar {
  max-width: 860px;
  margin: 0 auto;
  padding: 32px 32px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.legal-brand {
  font-weight: 700;
  font-size: 1.1rem;
  color: #fff;
}

.legal-container {
  max-width: 860px;
  margin: 0 auto;
  background: rgba(15, 23, 42, 0.85);
  border-radius: var(--radius);
  padding: 48px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.legal-container h1 {
  margin-top: 0;
  font-size: clamp(2.2rem, 5vw, 2.8rem);
  margin-bottom: 24px;
}

.legal-container section + section {
  margin-top: 32px;
}

.legal-meta {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 32px;
}

.legal-container h2 {
  font-size: 1.4rem;
  margin-bottom: 12px;
}

.legal-container p,
.legal-container ul {
  color: rgba(230, 237, 243, 0.9);
}

.legal-container ul {
  padding-left: 20px;
}

.legal-nav {
  margin-top: 40px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.legal-nav a {
  color: var(--accent);
  font-weight: 600;
}

@media (max-width: 640px) {
  .hero {
    padding: 96px 16px 120px;
  }

  .section {
    padding: 72px 16px;
  }

  .legal-page {
    padding: 96px 16px 64px;
  }

  .legal-container {
    padding: 32px 24px;
  }
}