:root{--bg:#f5f7fb;--card:#fff;--text:#0b1220;--muted:#5b6573;--primary:#0a84ff;--primary-press:#086ed1;--surface:#eef1f6}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text)}.wrap{max-width:720px;margin:0 auto;padding:20px;min-height:100svh;justify-content:center}.card,.wrap{display:flex;align-items:center}.card{background:var(--card);border-radius:16px;padding:22px;margin-top:18px;box-shadow:0 10px 30px rgba(9,16,29,.08),0 2px 6px rgba(9,16,29,.04);width:100%;max-width:420px;text-align:center;flex-direction:column}h1{font-size:24px;line-height:1.15;margin:2px 0 8px}p{margin:8px 0;color:var(--muted);line-height:1.45}.code{display:inline-flex;align-items:center;gap:10px;background:var(--surface);border-radius:10px;padding:10px 12px;margin-top:10px;font-weight:600;letter-spacing:.3px}.row{display:flex;gap:12px;flex-wrap:wrap;margin-top:16px}.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;cursor:pointer;text-decoration:none;text-align:center;padding:12px 16px;border-radius:12px;border:1px solid transparent;font-weight:700;flex:1 1 220px}.btn.primary{background:var(--primary);color:#fff}.btn.primary:active{background:var(--primary-press)}.btn.ghost{background:#fff;color:var(--primary);border-color:var(--primary)}.kicker,small{color:var(--muted)}.kicker{font-size:12px;letter-spacing:.4px;text-transform:uppercase}.toast{position:fixed;left:50%;bottom:calc(40px + env(safe-area-inset-bottom));transform:translateX(-50%);z-index:50;background:#101828;color:#fff;padding:10px 14px;border-radius:10px;font-size:14px;box-shadow:0 8px 20px rgba(0,0,0,.18);opacity:0;pointer-events:none;transition:opacity .18s ease}.toast.show{opacity:1}@media (min-width:640px){.card{padding:26px 28px}h1{font-size:26px}}#refWrap{text-align:center}#refWrap .code{justify-content:center}