:root {
  color-scheme: dark;
  --bg: #090a10;
  --surface: rgba(23, 25, 38, 0.82);
  --surface-strong: #171926;
  --text: #f4f2ff;
  --muted: #b6b3c9;
  --line: rgba(255, 255, 255, 0.1);
  --accent: #c8a8ff;
  --accent-strong: #9d73ff;
  --cyan: #76e6f7;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 5%, rgba(122, 79, 212, 0.28), transparent 30rem),
    radial-gradient(circle at 88% 18%, rgba(44, 180, 201, 0.18), transparent 26rem),
    var(--bg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Yu Gothic UI", sans-serif;
  line-height: 1.75;
}

a { color: var(--cyan); }
a:hover { color: #b5f5ff; }

.shell {
  width: min(980px, calc(100% - 32px));
  margin: 0 auto;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 26px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-weight: 750;
  text-decoration: none;
  letter-spacing: 0.01em;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 12px;
  background: linear-gradient(145deg, #8e63eb, #352653);
  box-shadow: 0 10px 30px rgba(137, 87, 235, 0.25);
  font-size: 19px;
}

nav { display: flex; gap: 20px; }
nav a { color: var(--muted); text-decoration: none; font-size: 0.93rem; }
nav a[aria-current="page"], nav a:hover { color: var(--text); }

.hero { padding: 76px 0 54px; }
.eyebrow {
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

h1 {
  max-width: 760px;
  margin: 12px 0 18px;
  font-size: clamp(2.6rem, 8vw, 5.6rem);
  line-height: 1.02;
  letter-spacing: -0.055em;
}

.lead { max-width: 700px; color: var(--muted); font-size: 1.08rem; }

.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.045);
  font-weight: 700;
  text-decoration: none;
}
.button.primary { border-color: transparent; background: var(--accent-strong); }
.button:hover { color: white; transform: translateY(-1px); }

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 34px;
}

.card, .policy {
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.card { padding: 25px; }
.card h2 { margin-top: 0; font-size: 1.15rem; }
.card p { margin-bottom: 0; color: var(--muted); }
.card .icon { color: var(--accent); font-size: 1.5rem; }

.policy { padding: clamp(24px, 6vw, 54px); }
.policy h2 { margin-top: 2.3em; padding-top: 0.3em; font-size: 1.42rem; }
.policy h2:first-of-type { margin-top: 0; }
.policy h3 { margin-top: 1.8em; }
.policy p, .policy li { color: var(--muted); }
.policy strong { color: var(--text); }
.policy .summary {
  margin-bottom: 36px;
  padding: 18px 20px;
  border-left: 3px solid var(--accent);
  border-radius: 0 14px 14px 0;
  background: rgba(157, 115, 255, 0.09);
}

.meta { color: var(--muted); font-size: 0.9rem; }
.lang-divider { margin: 52px 0; border: 0; border-top: 1px solid var(--line); }

footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 38px 0 56px;
  color: var(--muted);
  font-size: 0.88rem;
}

@media (max-width: 680px) {
  header, footer { align-items: flex-start; flex-direction: column; }
  nav { gap: 14px; }
  .hero { padding-top: 48px; }
  .grid { grid-template-columns: 1fr; }
}