:root{--primary: #A8D5BA;--primary-light: #D4EDDA;--primary-lighter: #E8F5E9;--accent: #7EC8A0;--accent-dark: #5BB381;--bg: #F8FBF9;--bg-card: #ffffff;--text: #2D3436;--text-secondary: #636E72;--text-muted: #B2BEC3;--border: #D4EDDA;--border-light: #E8F5E9;--shadow: 0 2px 8px rgba(45, 52, 54, .08);--shadow-lg: 0 4px 16px rgba(45, 52, 54, .12);--radius: 16px;--radius-sm: 10px;--radius-xs: 6px;--success: #7EC8A0;--error: #E17055;--warning: #FDCB6E;--info: #74B9FF}*{margin:0;padding:0;box-sizing:border-box}html,body,#root{height:100%}body{font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;max-width:100vw;overflow-x:hidden;-webkit-tap-highlight-color:transparent}a{color:var(--accent-dark);text-decoration:none}button{font-family:inherit;cursor:pointer;border:none;background:none;font-size:inherit;-webkit-tap-highlight-color:transparent;touch-action:manipulation}input,textarea,select{font-family:inherit;font-size:16px;-webkit-appearance:none;-moz-appearance:none;appearance:none}.container{max-width:600px;margin:0 auto;padding:0 16px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:var(--radius-sm);font-weight:600;font-size:15px;min-height:48px;min-width:48px;transition:all .2s ease;touch-action:manipulation;user-select:none;-webkit-user-select:none}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-dark)}.btn-primary:active{transform:scale(.97)}.btn-secondary{background:var(--primary-light);color:var(--text)}.btn-secondary:hover{background:var(--primary)}.btn-outline{border:2px solid var(--border);color:var(--text);background:var(--bg-card)}.btn-outline:hover{border-color:var(--accent);background:var(--primary-lighter)}.btn-full{width:100%}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);transition:box-shadow .2s ease}.card:hover{box-shadow:var(--shadow-lg)}.badge{display:inline-flex;align-items:center;padding:4px 10px;border-radius:20px;font-size:12px;font-weight:600}.badge-green{background:var(--primary-light);color:var(--accent-dark)}.badge-blue{background:#e3f2fd;color:#1565c0}.empty-state{text-align:center;padding:48px 24px;color:var(--text-secondary)}.empty-state h3{font-size:18px;margin-bottom:8px;color:var(--text)}.empty-state p{margin-bottom:20px;line-height:1.5}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:fadeIn .3s ease}@keyframes spin{to{transform:rotate(360deg)}}.spinner{width:24px;height:24px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@media(max-width:480px){.container{padding:0 12px}.card{padding:16px;border-radius:12px}.btn{padding:12px 16px;font-size:14px}.empty-state{padding:36px 16px}}input[type=text],textarea{max-width:100%}.btn:active{transform:scale(.97);opacity:.9}.card:active{transform:scale(.99)}.generating-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1000;display:flex;align-items:center;justify-content:center;background:#f8fbf9eb;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);animation:fadeIn .3s ease}.generating-content{display:flex;flex-direction:column;align-items:center;gap:20px;padding:32px 24px;max-width:340px;width:100%;text-align:center}.generating-icon-ring{width:100px;height:100px;border-radius:50%;border:3px solid var(--border-light);border-top-color:var(--accent);border-right-color:var(--accent);animation:spin 2s linear infinite;display:flex;align-items:center;justify-content:center}.generating-icon{font-size:42px;animation:gen-pulse 2s ease-in-out infinite,gen-counter-spin 2s linear infinite;display:block}@keyframes gen-pulse{0%,to{transform:scale(1)}50%{transform:scale(1.15)}}@keyframes gen-counter-spin{to{transform:rotate(-360deg)}}.generating-message{font-size:17px;font-weight:600;color:var(--text);min-height:28px;animation:gen-msg-in .4s ease}@keyframes gen-msg-in{0%{opacity:0;transform:translateY(8px) scale(.96)}to{opacity:1;transform:translateY(0) scale(1)}}.generating-progress-track{width:200px;height:5px;border-radius:10px;background:var(--primary-light);overflow:hidden;position:relative}.generating-progress-bar{position:absolute;top:0;right:0;bottom:0;left:0;border-radius:10px;background:linear-gradient(90deg,transparent,var(--accent),var(--accent-dark),var(--accent),transparent);animation:gen-progress 1.8s ease-in-out infinite}@keyframes gen-progress{0%{transform:translate(-100%)}to{transform:translate(100%)}}.generating-timer{font-size:13px;color:var(--text-muted);font-variant-numeric:tabular-nums;min-width:100px}.generating-tip{display:flex;align-items:flex-start;gap:8px;padding:12px 16px;border-radius:var(--radius-sm);background:var(--primary-lighter);border:1px solid var(--border);font-size:13px;color:var(--text-secondary);line-height:1.4;max-width:300px;text-align:left;animation:fadeIn .5s ease .3s both}@keyframes quiz-shake{0%,to{transform:translate(0)}15%{transform:translate(-6px)}30%{transform:translate(5px)}45%{transform:translate(-4px)}60%{transform:translate(3px)}75%{transform:translate(-2px)}}.quiz-shake{animation:quiz-shake .4s ease}@keyframes quiz-bounce{0%{transform:scale(1)}30%{transform:scale(1.03)}50%{transform:scale(.98)}70%{transform:scale(1.01)}to{transform:scale(1)}}.quiz-bounce{animation:quiz-bounce .4s ease}@keyframes matchPop{0%{transform:scale(1)}40%{transform:scale(1.08)}to{transform:scale(1)}}@keyframes cardFlipIn{0%{transform:rotateY(90deg);opacity:.5}to{transform:rotateY(0);opacity:1}}.streak-badge{display:inline-flex;align-items:center;gap:2px;font-size:13px;font-weight:700;color:var(--accent-dark);background:var(--primary-lighter);padding:2px 8px;border-radius:12px;animation:streakPulse 1.5s ease-in-out infinite}@keyframes streakPulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}.page-enter{animation:pageSlideIn .25s ease}@keyframes pageSlideIn{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}