html{min-width:320px;min-height:100%}body{min-width:320px;min-height:100vh;margin:0}#root{min-height:100vh}:root{color:#172033;font-synthesis:none;text-rendering:optimizelegibility;background:#f3f5f9;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}button,input{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed}.app-shell{background:radial-gradient(circle at 0 0,#526eff1f,#0000 34%),#f3f5f9;min-height:100vh;padding:32px 20px}.app-container{width:min(1040px,100%);margin:0 auto}.app-header{justify-content:space-between;align-items:center;margin-bottom:24px;display:flex}.logo-button{color:#172033;letter-spacing:-.04em;background:0 0;border:0;padding:0;font-size:24px;font-weight:800}.header-score{color:#687086;gap:18px;font-size:14px;display:flex}.header-score strong{color:#172033}.panel{background:#fffffff5;border:1px solid #e4e7ef;border-radius:24px;box-shadow:0 22px 70px #1c274614}.selection-panel{padding:42px}.section-heading{max-width:680px;margin-bottom:30px}.section-heading h1{letter-spacing:-.045em;margin:8px 0 10px;font-size:clamp(30px,5vw,48px);line-height:1.05}.section-heading p{color:#687086;margin:0;font-size:17px;line-height:1.6}.step-label{color:#596cf5;letter-spacing:.08em;text-transform:uppercase;font-size:13px;font-weight:800}.card-grid{grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px;display:grid}.selection-card{min-height:190px;color:inherit;text-align:left;background:#fff;border:1px solid #e0e4ef;border-radius:18px;flex-direction:column;align-items:flex-start;padding:24px;transition:transform .16s,border-color .16s,box-shadow .16s;display:flex}.selection-card:hover:not(:disabled){border-color:#7b89ff;transform:translateY(-3px);box-shadow:0 16px 35px #4958b41f}.card-title{margin-bottom:10px;font-size:21px;font-weight:800}.card-description{color:#687086;line-height:1.5}.card-action{color:#5266ed;margin-top:auto;padding-top:22px;font-weight:800}.disabled-card{opacity:.55;background:#f7f8fb}.back-button,.text-button{color:#596cf5;background:0 0;border:0;padding:0;font-weight:700}.back-button{margin-bottom:28px}.error-banner{color:#a61b2b;background:#fff1f3;border:1px solid #ffc9ce;border-radius:12px;margin-bottom:16px;padding:14px 18px}.error-message{color:#a61b2b}.game-panel{padding:32px}.game-toolbar{justify-content:space-between;align-items:center;gap:16px;margin-bottom:26px;display:flex}.toolbar-label{color:#687086;font-size:14px;font-weight:700}.toolbar-separator{color:#b4bac9;margin:0 8px}.progress-block{margin-bottom:20px}.progress-text{color:#687086;margin-bottom:9px;font-size:14px;font-weight:700}.progress-track{background:#eceef4;border-radius:999px;height:7px;overflow:hidden}.progress-fill{border-radius:inherit;background:#596cf5;height:100%;transition:width .24s}.question-card{background:#fff;border:1px solid #e2e5ee;border-radius:22px;max-width:720px;margin:0 auto;padding:38px}.verb-block{text-align:center;margin-bottom:22px}.verb-block h2{letter-spacing:-.055em;margin:0 0 7px;font-size:clamp(38px,7vw,62px);line-height:1}.verb-block p{color:#687086;margin:0;font-size:19px}.grammar-tags{flex-wrap:wrap;justify-content:center;gap:8px;margin-bottom:24px;display:flex}.grammar-tags span{color:#4e5ec5;background:#eef0ff;border-radius:999px;padding:7px 11px;font-size:13px;font-weight:750}.person-label{text-align:center;margin-bottom:16px;font-size:20px;font-weight:800}.answer-form{grid-template-columns:1fr auto;gap:10px;display:grid}.answer-form input{border:1px solid #d9deea;border-radius:12px;outline:none;min-width:0;padding:15px 16px;transition:border-color .15s,box-shadow .15s}.answer-form input:focus{border-color:#6577f2;box-shadow:0 0 0 4px #596cf521}.answer-form button,.primary-button{color:#fff;background:#5266ed;border:0;border-radius:12px;padding:14px 22px;font-weight:800}.answer-form button:disabled{opacity:.5}.feedback{border-radius:12px;flex-direction:column;gap:5px;margin-top:16px;padding:14px 16px;display:flex}.feedback-correct{color:#17663c;background:#eaf8f0}.feedback-wrong{color:#9d2532;background:#fff0f2}.result-panel{text-align:center;max-width:680px;margin:0 auto;padding:48px}.result-icon{color:#fff;background:#5266ed;border-radius:50%;place-items:center;width:70px;height:70px;margin:0 auto 20px;font-size:34px;font-weight:900;display:grid}.result-panel h1{letter-spacing:-.04em;margin:0 0 10px;font-size:42px}.result-panel>p{color:#687086}.result-stats{grid-template-columns:repeat(2,1fr);gap:14px;margin:30px 0;display:grid}.result-stats div{background:#f3f5fa;border-radius:15px;flex-direction:column;gap:8px;padding:20px;display:flex}.result-stats span{color:#687086;font-size:14px}.result-stats strong{font-size:32px}.result-actions{justify-content:center;gap:10px;display:flex}.secondary-button{color:#34405a;background:#fff;border:1px solid #d9deea;border-radius:12px;padding:14px 22px;font-weight:800}.status-panel{color:#687086;text-align:center;place-content:center;justify-items:center;min-height:260px;padding:40px;display:grid}.loader{border:4px solid #e3e6ef;border-top-color:#596cf5;border-radius:50%;width:38px;height:38px;animation:.7s linear infinite spin}.question-in{animation:.24s ease-out question-in}.shake{animation:.32s ease-in-out shake}@keyframes spin{to{transform:rotate(360deg)}}@keyframes question-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-7px)}75%{transform:translate(7px)}}@media (width<=680px){.app-shell{padding:18px 12px}.selection-panel,.game-panel,.result-panel{border-radius:18px;padding:24px 18px}.app-header{padding:0 4px}.header-score{gap:10px;font-size:12px}.question-card{padding:28px 18px}.answer-form{grid-template-columns:1fr}.answer-form button{width:100%}.game-toolbar{align-items:flex-start}.result-stats{grid-template-columns:1fr}.result-actions{flex-direction:column}}