:root{color-scheme:light;--bg: #f6f7fb;--panel: rgba(255, 255, 255, .72);--border: rgba(16, 24, 40, .1);--text: #0b1220;--muted: rgba(11, 18, 32, .62)}*{box-sizing:border-box}body{margin:0;min-height:100vh;display:grid;place-items:center;padding:28px;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:radial-gradient(900px 600px at 20% 10%,rgba(90,140,255,.1),transparent 55%),radial-gradient(900px 600px at 80% 0%,rgba(0,200,255,.08),transparent 60%),var(--bg);color:var(--text)}.wrap{width:100%;max-width:860px}.card{border:1px solid var(--border);background:var(--panel);border-radius:18px;padding:34px 30px;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);box-shadow:0 24px 70px #0f172a1a}h1{margin:0 0 10px;font-size:44px;letter-spacing:-.03em;font-weight:650}.line{margin:0;max-width:70ch;font-size:16px;line-height:1.7;color:var(--muted)}@media(max-width:520px){body{padding:18px}.card{padding:24px 18px;border-radius:16px}h1{font-size:34px}}