:root {
  color-scheme: dark;
  --bg: #0c1220;
  --surface: #141d33;
  --surface-alt: #1a2540;
  --text: #eef2ff;
  --muted: #98a7c4;
  --primary: #79c0ff;
  --accent: #ffd166;
  --border: rgba(255,255,255,0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #13203a 0%, #0b1220 50%, #06090f 100%);
  color: var(--text);
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-header {
  padding: 24px 28px;
  display: grid;
  grid-template-columns: minmax(220px, 1fr) auto;
  gap: 16px;
  align-items: center;
  border-bottom: 1px solid var(--border);
}

.brand h1 {
  margin: 0;
  font-size: clamp(1.9rem, 2.5vw, 2.7rem);
}

.brand p {
  margin: 6px 0 0;
  color: var(--muted);
}

.main-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: flex-end;
}

.main-nav a {
  color: var(--muted);
  text-decoration: none;
  padding: 10px 14px;
  border-radius: 12px;
  transition: background 0.2s ease, color 0.2s ease;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--text);
  background: rgba(255,255,255,0.06);
}

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

.lang-switcher button {
  border: 1px solid rgba(255,255,255,0.12);
  background: transparent;
  color: var(--muted);
  padding: 8px 12px;
  border-radius: 999px;
  cursor: pointer;
}

.lang-switcher button.active,
.lang-switcher button:hover {
  color: var(--text);
  border-color: var(--primary);
}

.content {
  flex: 1;
  padding: 30px 28px 40px;
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
}

.hero {
  padding: 28px;
  border-radius: 24px;
  background: rgba(18, 27, 44, 0.92);
  border: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 24px;
}

.hero h2 {
  margin-top: 0;
  font-size: clamp(2.1rem, 3vw, 3rem);
}

.hero p {
  margin: 16px 0 0;
  line-height: 1.8;
  color: var(--muted);
}

.note {
  margin-top: 16px;
  color: var(--accent);
}

.section-block {
  background: rgba(18, 27, 44, 0.85);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 20px;
  padding: 24px;
  margin-bottom: 20px;
}

.section-block h3 {
  margin-top: 0;
}

.section-block p,
.section-block li {
  color: var(--muted);
  line-height: 1.75;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
  margin-bottom: 24px;
}

.cards article {
  padding: 22px;
  border-radius: 20px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
}

.cards article h4 {
  margin-top: 0;
}

.cards article p {
  margin: 12px 0 0;
  color: var(--muted);
}

ul {
  padding-left: 1.2rem;
  margin: 0;
}

ol {
  padding-left: 1.2rem;
  margin: 0;
}

..site-footer {
  padding: 20px 28px 28px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.95rem;
}

.language-notice {
  margin: 18px auto 0;
  max-width: 1100px;
  padding: 16px 20px;
  border-radius: 18px;
  background: rgba(255, 209, 102, 0.12);
  border: 1px solid rgba(255, 209, 102, 0.22);
  color: #ffe9b5;
  font-size: 0.95rem;
  text-align: center;
}

@media (max-width: 860px) {
  .site-header {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .main-nav,
  .lang-switcher {
    justify-content: center;
  }
}