:root{--paper:#f1f5f2;--surface:#fff;--surface-2:#e9f0eb;--ink:#15201b;--ink-muted:#55625c;--ink-faint:#8b9891;--line:#dbe3de;--brand:#2f6f62;--brand-strong:#1c463c;--brand-tint:#e2efec;--ok:#2f6f62;--ok-tint:#e2efec;--warn:#a8721f;--warn-tint:#f5e9d7;--bad:#a5432f;--bad-tint:#f6e6e2;--radius-s:8px;--radius-m:14px;--radius-l:22px;--shadow-card:0 1px 2px #15201b0a;--shadow-pop:0 16px 40px #15201b1f;--font-ui:"Golos Text", "Segoe UI", system-ui, sans-serif;--font-play:"Baloo 2", "Golos Text", sans-serif;--font-mono:"JetBrains Mono", ui-monospace, monospace;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}@media (prefers-color-scheme:dark){:root{--paper:#1a211f;--surface:#253530;--surface-2:#304039;--ink:#eef3f0;--ink-muted:#aebdb5;--ink-faint:#7f9089;--line:#3c4c44;--brand:#6fc4ab;--brand-strong:#9adcc4;--brand-tint:#2a3f38;--ok:#6fc4ab;--ok-tint:#2a3f38;--warn:#dba967;--warn-tint:#3c3021;--bad:#e28a76;--bad-tint:#3d2a24;--shadow-card:0 1px 2px #00000059;--shadow-pop:0 20px 48px #00000080;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}}*{box-sizing:border-box}body{background:var(--paper);color:var(--ink);font-family:var(--font-ui);-webkit-font-smoothing:antialiased;margin:0;font-size:15.5px;line-height:1.5}#root{min-height:100vh}h1,h2,h3{font-family:var(--font-ui);color:var(--ink);text-wrap:balance;letter-spacing:-.01em;margin:0;font-weight:700}h1{font-size:1.6rem}h2{font-size:1.2rem}a{color:var(--brand-strong)}code,.mono{font-family:var(--font-mono);font-size:.92em}button{cursor:pointer;font-family:inherit}button:focus-visible,a:focus-visible,input:focus-visible{outline:2px solid var(--brand);outline-offset:2px}.btn{border-radius:var(--radius-s);background:var(--brand);color:#fff;border:1px solid #0000;justify-content:center;align-items:center;gap:6px;padding:10px 18px;font-size:.92rem;font-weight:600;text-decoration:none;transition:background .15s,transform 50ms;display:inline-flex}.btn:hover{background:var(--brand-strong)}.btn:active{transform:translateY(1px)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn.secondary{background:var(--surface);color:var(--ink);border-color:var(--line)}.btn.secondary:hover{background:var(--surface-2)}.btn.danger{background:var(--bad)}.btn.danger:hover{filter:brightness(.92)}input[type=text],input[type=password],input[type=email],select,textarea{border-radius:var(--radius-s);border:1px solid var(--line);background:var(--surface);color:var(--ink);font-family:var(--font-ui);width:100%;padding:10px 14px;font-size:.95rem}textarea{resize:vertical;min-height:64px}input::placeholder,textarea::placeholder{color:var(--ink-faint)}label{font-size:.92rem}.container{max-width:880px;margin:0 auto;padding:28px 20px 72px}.stack{flex-direction:column;gap:12px;display:flex}.row{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.muted{color:var(--ink-muted)}.eyebrow{letter-spacing:.06em;text-transform:uppercase;color:var(--brand);font-size:.76rem;font-weight:700}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-m);box-shadow:var(--shadow-card);padding:20px 22px}.collapsible-toggle{font:inherit;color:inherit;cursor:pointer;text-align:left;background:0 0;border:none;align-items:center;gap:8px;margin:0;padding:0;display:inline-flex}.collapsible-chevron{color:var(--ink-faint);font-size:.8em;transition:transform .15s;display:inline-block}.collapsible-chevron.open{transform:rotate(90deg)}.pill{white-space:nowrap;border-radius:999px;align-items:center;gap:5px;padding:3px 11px;font-size:.76rem;font-weight:700;display:inline-flex}.pill.ok{background:var(--ok-tint);color:var(--ok)}.pill.warn{background:var(--warn-tint);color:var(--warn)}.pill.bad{background:var(--bad-tint);color:var(--bad)}.pill.neutral{background:var(--surface-2);color:var(--ink-muted)}.error-text{color:var(--bad);font-size:.9rem}.progress-track{background:var(--surface-2);border-radius:999px;height:8px;overflow:hidden}.progress-fill{background:var(--brand);border-radius:999px;height:100%}.topbar{background:var(--surface);border-bottom:1px solid var(--line)}.topbar-inner{justify-content:space-between;align-items:center;gap:16px;max-width:880px;margin:0 auto;padding:14px 20px;display:flex}.brand-mark{color:var(--brand-strong);align-items:center;gap:9px;font-size:1.02rem;font-weight:700;display:flex}.brand-dot{background:var(--brand);border-radius:3px;flex-shrink:0;width:10px;height:10px}.nav-link{border-radius:var(--radius-s);color:var(--ink-muted);padding:7px 13px;font-size:.9rem;font-weight:600;text-decoration:none}.nav-link.active{background:var(--brand-tint);color:var(--brand-strong)}.auth-shell{background:radial-gradient(circle at 20% 15%, var(--brand-tint), transparent 55%), var(--paper);justify-content:center;align-items:center;min-height:100vh;padding:24px;display:flex}.auth-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-l);width:100%;max-width:380px;box-shadow:var(--shadow-pop);padding:32px 30px}.play-shell{min-height:100vh;font-family:var(--font-ui);background:linear-gradient(160deg,#fff6e8 0%,#eef8f1 55%,#e6f2fb 100%);justify-content:center;align-items:center;padding:24px 16px;display:flex}@media (prefers-color-scheme:dark){.play-shell{background:linear-gradient(160deg,#362c1c 0%,#203830 55%,#1c2c3a 100%)}}.play-card{background:var(--surface);box-shadow:var(--shadow-pop);border-radius:28px;width:100%;max-width:480px;padding:32px}.play-title{font-family:var(--font-play);font-weight:700}.question-image{object-fit:contain;border-radius:20px;max-width:100%;max-height:280px}.masked-word{font-family:var(--font-play);letter-spacing:.03em;color:var(--brand-strong);font-size:2rem;font-weight:700}.options-grid{grid-template-columns:repeat(2,1fr);gap:12px;width:100%;display:grid}.option-btn{font-family:var(--font-play);border-radius:18px;min-height:64px;padding:20px;font-size:1.3rem;font-weight:700}.play-btn-primary{font-family:var(--font-play);border-radius:999px;padding:16px 28px;font-size:1.1rem;font-weight:700}.color-balls-grid{flex-wrap:wrap;justify-content:center;align-items:center;gap:22px;padding:12px 0;display:flex}.color-ball{cursor:pointer;border:none;border-radius:50%;flex-shrink:0;width:108px;height:108px;transition:transform .15s,opacity .2s,filter .2s;box-shadow:inset -10px -12px 18px #00000038,inset 8px 10px 16px #fff6,0 10px 18px #15201b2e}.color-ball:hover:not(:disabled){transform:scale(1.06)}.color-ball:active:not(:disabled){transform:scale(.96)}.color-ball:disabled{cursor:default;opacity:.22;filter:grayscale(.5);box-shadow:inset -6px -8px 12px #00000026,0 4px 8px #15201b1a}.color-ball.shaking{animation:.35s color-ball-shake}.color-ball.popping{pointer-events:none;animation:.55s forwards color-ball-pop}@keyframes color-ball-shake{0%,to{transform:translate(0)}25%{transform:translate(-7px)rotate(-4deg)}75%{transform:translate(7px)rotate(4deg)}}@keyframes color-ball-pop{0%{opacity:1;transform:scale(1)}35%{opacity:1;transform:scale(1.3)}to{opacity:0;transform:scale(1.7)}}.feedback-badge{border-radius:50%;justify-content:center;align-items:center;width:84px;height:84px;font-size:2.6rem;line-height:1;animation:.5s cubic-bezier(.34,1.56,.64,1) feedback-badge-pop;display:flex}.feedback-badge.ok{background:var(--ok-tint);box-shadow:0 0 0 6px var(--ok-tint), 0 8px 20px #2f6f6240}.feedback-badge.bad{background:var(--bad-tint)}@keyframes feedback-badge-pop{0%{opacity:0;transform:scale(.2)rotate(-15deg)}60%{opacity:1;transform:scale(1.15)rotate(5deg)}to{opacity:1;transform:scale(1)rotate(0)}}@media (prefers-reduced-motion:reduce){.feedback-badge{animation:none}}.option-btn.wrong-shake{animation:.35s option-btn-shake}.option-btn.correct-pop{border-color:var(--ok);animation:.5s forwards option-btn-pop}@keyframes option-btn-shake{0%,to{transform:translate(0)}25%{transform:translate(-6px)rotate(-3deg)}75%{transform:translate(6px)rotate(3deg)}}@keyframes option-btn-pop{0%{transform:scale(1)}40%{transform:scale(1.08)}to{transform:scale(1)}}@media (prefers-reduced-motion:reduce){.option-btn.wrong-shake,.option-btn.correct-pop{animation:none}}