:root{--bg: #0a0e27;--surface: #131736;--surface-2: #1b2147;--accent: #00c9a7;--accent-dim: #0a8a76;--text: #e4e7f1;--text-dim: #8a91b8;--danger: #ff5757;--warning: #ffb830;--border: #2a3166;--radius: 14px;--radius-sm: 8px;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-6: 24px;--space-8: 32px;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .25);--shadow-md: 0 8px 24px rgba(0, 0, 0, .35);--font-ui: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--font-num: "SF Mono", ui-monospace, "Roboto Mono", monospace;--ease: cubic-bezier(.22, 1, .36, 1);--press-scale: .96;--t-fast: .12s;--t-base: .2s}.fk-num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:.02em}.fk-btn{appearance:none;border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:var(--radius-sm);padding:var(--space-3) var(--space-4);font-family:var(--font-ui);font-weight:600;cursor:pointer;transition:transform var(--t-fast) var(--ease),background var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease)}.fk-btn:active{transform:scale(var(--press-scale))}.fk-btn--primary{background:var(--accent);border-color:var(--accent);color:#03150f}.fk-btn--primary:active{background:var(--accent-dim)}@media (prefers-reduced-motion: reduce){.fk-btn{transition:none}}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100dvh;background:#070b20;color:var(--text, #e6e9ff);font-family:system-ui,-apple-system,sans-serif;font-variant-numeric:tabular-nums;overflow:hidden;touch-action:none;-webkit-tap-highlight-color:transparent;user-select:none;-webkit-user-select:none}#app{position:relative;width:100%;max-width:480px;height:100dvh;margin:0 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reduce){.bank-btn.tempting{animation:none}}.bank-cap{font-size:12px;letter-spacing:1px;opacity:.8}.bval{font-size:19px}.overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:#040716c7;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);z-index:10;padding:24px;animation:fade .22s ease}@keyframes fade{0%{opacity:0}to{opacity:1}}.title-card,.modal{width:100%;max-width:340px;background:#101634eb;border:1px solid rgba(120,135,210,.18);border-radius:22px;padding:26px 22px;text-align:center;box-shadow:0 20px 60px #00000080;animation:pop .26s cubic-bezier(.2,.8,.3,1.1)}@keyframes pop{0%{transform:translateY(14px) scale(.96);opacity:0}to{transform:none;opacity:1}}.logo{font-size:78px;font-weight:900;line-height:1;color:#ffd23f;text-shadow:0 0 30px rgba(255,210,63,.5);margin-bottom:2px}.logo-sub{font-size:13px;letter-spacing:8px;color:#00c9a7;font-weight:700;margin-bottom:14px}.tagline{font-size:15px;line-height:1.6;color:#c3c9ec;margin-bottom:16px}.demo{width:280px;max-width:100%;height:120px;margin:0 auto 18px;background:#070b20;border-radius:12px;border:1px solid rgba(120,135,210,.12);display:flex;align-items:center;justify-content:center;overflow:hidden}.demo canvas{width:280px;height:120px}.btn{display:block;width:100%;font-family:inherit;font-weight:800;font-size:17px;border:none;border-radius:14px;padding:14px;margin-top:10px;cursor:pointer;transition:transform .08s,filter .15s}.btn:active{transform:scale(.96)}.btn.primary{background:linear-gradient(135deg,#ffd23f,#ffae00);color:#2a1c00;box-shadow:0 8px 22px #ffb40059}.btn.ghost{background:#7887d21f;color:#cdd3f5;border:1px solid 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