:root {
  --bg: #020711;
  --card: rgba(10, 20, 38, .88);
  --card2: rgba(14, 28, 52, .78);
  --line: rgba(104, 160, 255, .18);
  --text: #f4f8ff;
  --muted: #9fb0c8;
  --blue: #2b8cff;
  --blue2: #55c7ff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 20% 10%, rgba(43, 140, 255, .22), transparent 34%),
    radial-gradient(circle at 80% 0%, rgba(85, 199, 255, .12), transparent 30%),
    var(--bg);
  color: var(--text);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  line-height: 1.55;
}

a { color: #65c8ff; text-decoration: none; }
a:hover { text-decoration: underline; }

.page {
  width: min(960px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 64px;
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0 28px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 20px;
}

.logo-badge {
  width: 34px;
  height: 34px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--blue), var(--blue2));
  box-shadow: 0 0 24px rgba(43, 140, 255, .45);
}

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

.nav a {
  color: var(--muted);
  font-size: 14px;
}

.card {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--card), rgba(3, 10, 22, .82));
  border-radius: 24px;
  padding: 28px;
  box-shadow: 0 18px 60px rgba(0,0,0,.28);
}

h1 {
  font-size: clamp(30px, 5vw, 48px);
  line-height: 1.05;
  margin: 0 0 14px;
}

h2 {
  font-size: 22px;
  margin: 34px 0 12px;
}

h3 {
  font-size: 18px;
  margin: 24px 0 8px;
}

p, li { color: #d8e3f6; }
.muted { color: var(--muted); }

.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 22px 0;
}

.info {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 16px;
  background: var(--card2);
}

.info b {
  display: block;
  margin-bottom: 6px;
}

ul { padding-left: 22px; }

.footer {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--blue), #1677ff);
  color: #fff;
  font-weight: 700;
  box-shadow: 0 0 26px rgba(43, 140, 255, .3);
}

@media (max-width: 700px) {
  .header { align-items: flex-start; flex-direction: column; }
  .info-grid { grid-template-columns: 1fr; }
  .card { padding: 20px; }
}