:root {
  --bg: #081827;
  --panel: rgba(255,255,255,.08);
  --panel-2: rgba(255,255,255,.12);
  --text: #f4f7fb;
  --muted: #c4d0df;
  --accent: #ff4b27;
  --accent-2: #28a3ff;
  --ok: #5bd46f;
  --warn: #ffd35a;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top left, #17395a 0%, var(--bg) 42%, #050912 100%);
  color: var(--text);
  line-height: 1.6;
}
a { color: #8fd0ff; }
.header {
  min-height: 68vh;
  padding: 32px 20px 48px;
  display: grid;
  place-items: center;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.header:before {
  content: "";
  position: absolute;
  width: 720px;
  height: 720px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(40,163,255,.22), rgba(40,163,255,0) 65%);
  top: -260px;
  right: -240px;
}
.header-inner { max-width: 960px; position: relative; z-index: 1; }
.badge {
  display: inline-block;
  padding: 6px 12px;
  border: 1px solid rgba(255,255,255,.22);
  background: rgba(255,255,255,.08);
  border-radius: 999px;
  font-size: 14px;
  color: var(--muted);
}
h1 { font-size: clamp(38px, 7vw, 72px); line-height: 1; margin: 20px 0 12px; }
.lead { font-size: clamp(18px, 2.6vw, 24px); color: var(--muted); max-width: 760px; margin: 0 auto 28px; }
.buttons { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 18px;
  border-radius: 12px;
  background: var(--accent);
  color: white;
  text-decoration: none;
  font-weight: 700;
  box-shadow: 0 10px 28px rgba(255,75,39,.22);
}
.button.secondary { background: var(--panel-2); box-shadow: none; }
.button.blue { background: var(--accent-2); box-shadow: 0 10px 28px rgba(40,163,255,.22); }
.main { max-width: 1120px; margin: 0 auto; padding: 0 20px 64px; }
.grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.card {
  background: var(--panel);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 20px;
  padding: 22px;
  backdrop-filter: blur(10px);
}
.card h2, .card h3 { margin-top: 0; }
.card p:last-child, .card ul:last-child { margin-bottom: 0; }
.features { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin-top: 18px; }
.feature-list { margin: 0; padding-left: 20px; color: var(--muted); }
.section { margin-top: 36px; }
.notice { border-left: 4px solid var(--warn); padding-left: 16px; color: var(--muted); }
.footer { border-top: 1px solid rgba(255,255,255,.12); padding: 28px 20px; color: var(--muted); text-align: center; }
.lang-switch { margin-top: 18px; display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; }
.lang-switch a { color: var(--text); text-decoration: none; background: rgba(255,255,255,.08); padding: 8px 12px; border-radius: 10px; }
.privacy { max-width: 920px; }
.privacy h1 { font-size: clamp(34px, 5vw, 54px); }
.privacy h2 { margin-top: 30px; }
.privacy p, .privacy li { color: var(--muted); }
code { background: rgba(255,255,255,.1); padding: 2px 6px; border-radius: 6px; }
@media (max-width: 820px) {
  .grid, .features { grid-template-columns: 1fr; }
  .header { min-height: auto; }
}