:root{--color-primary:#1f4c40;--color-primary-dark:#17392f;--color-confirmation:#478475;--color-button:#23483f;--color-button-text:#fff;--color-success:#478475;--color-success-light:#d4ede6;--color-success-text:#1f4c40;--color-wrong-border:#e57373;--color-wrong-light:#fdecea;--color-danger:#c0392b;--color-danger-light:#fdecea;--color-danger-text:#7a1e1e;--color-background:#e6f1ec;--color-surface:#f7f7f7;--color-surface-muted:#e6f1ec;--color-surface-white:#fff;--color-text:#222;--color-text-muted:#707070;--color-border:#e0e0e0;--color-border-strong:#c8c8c8;--color-bar-bg:#e0e0e0;--radius-card:16px;--radius-inner:12px;--radius-pill:999px;--font-sans:"Inter","Segoe UI",system-ui,-apple-system,BlinkMacSystemFont,"Helvetica Neue",sans-serif}*{box-sizing:border-box}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:#e6f1ec;background-color:var(--color-background);font-family:Inter,Segoe UI,system-ui,-apple-system,BlinkMacSystemFont,Helvetica Neue,sans-serif;font-family:var(--font-sans);font-size:16px;line-height:1.5}body,h1,h2,h3,h4{color:#222;color:var(--color-text);margin:0}h1{font-size:32px;font-weight:700;line-height:1.2}h2{font-size:22px;font-weight:600;line-height:1.25}p{color:#707070;color:var(--color-text-muted);margin:0}code{font-family:JetBrains Mono,Source Code Pro,Menlo,Consolas,monospace}:focus-visible{outline:2px solid #478475;outline:2px solid var(--color-confirmation);outline-offset:2px}.badge{align-items:center;border-radius:8px;display:inline-flex;font-size:13px;font-weight:600;padding:4px 10px}.badge-success{background:#d4ede6;background:var(--color-success-light);color:#1f4c40;color:var(--color-success-text)}.badge-danger{background:#fdecea;background:var(--color-danger-light);color:#7a1e1e;color:var(--color-danger-text)}.badge-neutral{background:#e6f1ec;background:var(--color-surface-muted);color:#707070;color:var(--color-text-muted)}.badge-primary{background:#1f4c40;background:var(--color-primary);color:#fff}.btn-primary{background:#23483f;background:var(--color-button);border:none;border-radius:12px;border-radius:var(--radius-inner);color:#fff;color:var(--color-button-text);cursor:pointer;font-size:14px;font-weight:600;min-height:48px;padding:12px 24px;transition:all .15s ease}.btn-primary:hover{background:#17392f;background:var(--color-primary-dark)}.btn-primary:active{transform:scale(.97)}.btn-secondary{background:#fff;background:var(--color-surface-white);border:1px solid #e0e0e0;border:1px solid var(--color-border);border-radius:12px;border-radius:var(--radius-inner);color:#222;color:var(--color-text);cursor:pointer;font-size:14px;font-weight:500;min-height:48px;padding:12px 24px;transition:all .15s ease}.btn-secondary:hover{background:#e6f1ec;background:var(--color-surface-muted);border-color:#1f4c40;border-color:var(--color-primary)}.btn-secondary:active{transform:scale(.97)}.btn-danger{background:#c0392b;background:var(--color-danger);border:none;border-radius:12px;border-radius:var(--radius-inner);color:#fff;cursor:pointer;font-size:14px;font-weight:600;min-height:48px;padding:12px 24px;transition:all .15s ease}.btn-danger:hover{opacity:.88}.btn-danger:active{transform:scale(.97)}.progress-bar-bg{background:#e0e0e0;background:var(--color-bar-bg);border-radius:999px;height:8px;overflow:hidden;width:100%}.progress-bar-fill{background:#1f4c40;background:var(--color-primary);border-radius:999px;height:100%;transition:width .3s ease}.session-progress-bar{background:#e0e0e0;background:var(--color-bar-bg);border-radius:999px;height:4px;overflow:hidden;width:100%}.session-progress-fill{background:#1f4c40;background:var(--color-primary);border-radius:999px;height:100%;transition:width .3s ease}.answer-option{align-items:center;background:#fff;background:var(--color-surface-white);border:1px solid #e0e0e0;border:1px solid var(--color-border);border-radius:12px;color:#222;color:var(--color-text);cursor:pointer;display:flex;font-family:Inter,Segoe UI,system-ui,-apple-system,BlinkMacSystemFont,Helvetica Neue,sans-serif;font-family:var(--font-sans);font-size:14px;gap:10px;min-height:56px;padding:13px 14px;text-align:left;transition:all .15s ease;width:100%}.answer-option:hover:not(:disabled){background:#f0f0f0}.answer-option.correct{background:#d4ede6;background:var(--color-success-light);border-color:#478475;border-color:var(--color-confirmation)}.answer-option.wrong{background:#fdecea;background:var(--color-wrong-light);border-color:#e57373;border-color:var(--color-wrong-border)}.letter-badge{align-items:center;background:#0000;border:1.5px solid #e0e0e0;border:1.5px solid var(--color-border);border-radius:50%;color:#707070;color:var(--color-text-muted);display:inline-flex;flex-shrink:0;font-size:11px;font-weight:600;height:26px;justify-content:center;transition:all .15s ease;width:26px}.answer-option.correct .letter-badge{background:#478475;background:var(--color-confirmation);border-color:#478475;border-color:var(--color-confirmation);color:#fff}.answer-option.wrong .letter-badge{background:#e57373;background:var(--color-wrong-border);border-color:#e57373;border-color:var(--color-wrong-border);color:#fff}@keyframes correctPulse{0%{transform:scale(1)}40%{transform:scale(1.02)}to{transform:scale(1)}}@keyframes wrongShake{0%{transform:translateX(0)}20%{transform:translateX(-4px)}40%{transform:translateX(4px)}60%{transform:translateX(-4px)}80%{transform:translateX(4px)}to{transform:translateX(0)}}.answer-option.correct{animation:correctPulse .2s ease}.answer-option.wrong{animation:wrongShake .2s ease}.syn-grid{grid-gap:8px;display:grid;gap:8px;grid-template-columns:1fr 1fr;margin-top:10px}.syn-btn{background:#fff;background:var(--color-surface-white);border:1px solid #e0e0e0;border:1px solid var(--color-border);border-radius:12px;color:#222;color:var(--color-text);cursor:pointer;font-family:Inter,Segoe UI,system-ui,-apple-system,BlinkMacSystemFont,Helvetica Neue,sans-serif;font-family:var(--font-sans);font-size:13px;min-height:44px;padding:12px 8px;text-align:center;transition:all .15s ease}.syn-btn:hover{background:#f0f0f0}.syn-btn.selected{background:#d4ede6;background:var(--color-success-light);border-color:#478475;border-color:var(--color-confirmation);color:#1f4c40;color:var(--color-primary);font-weight:600}.syn-btn:active{transform:scale(.97)}.stat-pill{background:#f7f7f7;background:var(--color-surface);border:1px solid #e0e0e0;border:1px solid var(--color-border);border-radius:999px;color:#707070;color:var(--color-text-muted);font-size:12px;padding:5px 12px;white-space:nowrap}.stat-pill span{color:#222;color:var(--color-text);font-weight:700}.info-card{background:#f7f7f7;background:var(--color-surface);border:1px solid #e0e0e0;border:1px solid var(--color-border);border-radius:14px;color:#707070;color:var(--color-text-muted);font-size:12px;line-height:1.6;padding:14px}.info-card strong{color:#222;color:var(--color-text)}.App{text-align:center}
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