body{color:#e8e8f0;background:#0f0f1a}*{box-sizing:border-box;margin:0;padding:0}:root{--primary:#6c63ff;--primary-dark:#574fd6;--accent:#ff6584;--bg:#0f0f1a;--surface:#1a1a2e;--surface2:#16213e;--text:#e8e8f0;--text-muted:#888;--success:#4ade80;--border:#ffffff14;--radius:16px}body{background:var(--bg);color:var(--text);min-height:100vh;font-family:Inter,-apple-system,sans-serif}.header{background:var(--surface);border-bottom:1px solid var(--border);z-index:100;padding:0 1rem;position:sticky;top:0}.header-inner{justify-content:space-between;align-items:center;max-width:800px;height:60px;margin:0 auto;display:flex}.logo{align-items:center;gap:.5rem;display:flex}.logo h1{font-size:1.3rem;font-weight:700}.accent{color:var(--primary)}.flag{font-size:1.5rem}.xp-badge{background:#6c63ff26;border:1px solid #6c63ff4d;border-radius:100px;align-items:center;gap:.4rem;padding:.3rem .8rem;font-size:.85rem;font-weight:600;display:flex}.level-badge{background:var(--primary);color:#fff;text-transform:uppercase;border-radius:100px;padding:.1rem .5rem;font-size:.7rem}.nav{background:var(--surface);border-bottom:1px solid var(--border);justify-content:center;gap:.5rem;max-width:100%;padding:.75rem 1rem;display:flex;overflow-x:auto}.nav button{border:1px solid var(--border);color:var(--text-muted);cursor:pointer;white-space:nowrap;background:0 0;border-radius:100px;padding:.5rem 1rem;font-size:.85rem;transition:all .2s}.nav button:hover{border-color:var(--primary);color:var(--text)}.nav button.active{background:var(--primary);border-color:var(--primary);color:#fff}.main{max-width:800px;min-height:calc(100vh - 120px);margin:0 auto;padding:1rem}.chat-container{flex-direction:column;height:calc(100vh - 160px);display:flex}.chat-messages{flex-direction:column;flex:1;gap:1rem;padding:1rem 0;display:flex;overflow-y:auto}.message{align-items:flex-end;gap:.6rem;display:flex}.message.user{flex-direction:row-reverse}.avatar{flex-shrink:0;font-size:1.5rem}.bubble{border-radius:var(--radius);max-width:75%;padding:.8rem 1rem;font-size:.95rem;line-height:1.6}.bubble p{margin-bottom:.3rem}.bubble p:last-child{margin-bottom:0}.message.assistant .bubble{background:var(--surface);border:1px solid var(--border);border-bottom-left-radius:4px}.message.user .bubble{background:var(--primary);color:#fff;border-bottom-right-radius:4px}.typing{align-items:center;gap:4px;padding:1rem;display:flex}.typing span{background:var(--text-muted);border-radius:50%;width:8px;height:8px;animation:1.2s infinite bounce}.typing span:nth-child(2){animation-delay:.2s}.typing span:nth-child(3){animation-delay:.4s}@keyframes bounce{0%,60%,to{transform:translateY(0)}30%{transform:translateY(-8px)}}.chat-input-area{border-top:1px solid var(--border);gap:.75rem;padding:.75rem 0;display:flex}.chat-input-area textarea{background:var(--surface);border:1px solid var(--border);color:var(--text);border-radius:var(--radius);resize:none;outline:none;flex:1;padding:.75rem 1rem;font-family:inherit;font-size:.95rem;transition:border-color .2s}.chat-input-area textarea:focus{border-color:var(--primary)}.chat-input-area button{background:var(--primary);color:#fff;border-radius:var(--radius);cursor:pointer;white-space:nowrap;border:none;padding:.75rem 1.25rem;font-size:.95rem;font-weight:600;transition:background .2s}.chat-input-area button:hover:not(:disabled){background:var(--primary-dark)}.chat-input-area button:disabled{opacity:.5;cursor:not-allowed}.stats-container{padding:1rem 0}.stats-container h2{margin-bottom:1.5rem;font-size:1.4rem}.stats-grid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:1rem;margin-bottom:2rem;display:grid}.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);text-align:center;padding:1.25rem;transition:transform .2s}.stat-card:hover{transform:translateY(-2px)}.stat-card.xp{background:#6c63ff1a;border-color:#6c63ff66}.stat-icon{margin-bottom:.5rem;font-size:1.8rem}.stat-value{font-size:1.5rem;font-weight:700}.stat-label{color:var(--text-muted);margin-top:.2rem;font-size:.75rem}.level-progress{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:1.5rem;padding:1.25rem}.level-bar-header{color:var(--text-muted);justify-content:space-between;margin-bottom:.75rem;font-size:.85rem;display:flex}.level-bar{background:#ffffff0d;border-radius:100px;height:12px;overflow:hidden}.level-bar-fill{background:linear-gradient(90deg, var(--primary), var(--accent));border-radius:100px;height:100%;transition:width .8s}.encouragement{text-align:center;color:var(--text-muted);padding:1rem;font-size:1.1rem}.vocab-container{padding:1rem 0}.vocab-container h2{margin-bottom:1rem;font-size:1.4rem}.vocab-filters{flex-wrap:wrap;gap:.5rem;margin-bottom:1.5rem;display:flex}.vocab-filters button{border:1px solid var(--border);color:var(--text-muted);cursor:pointer;background:0 0;border-radius:100px;padding:.4rem .9rem;font-size:.85rem;transition:all .2s}.vocab-filters button.active{background:var(--primary);border-color:var(--primary);color:#fff}.vocab-empty{text-align:center;color:var(--text-muted);padding:3rem}.vocab-grid{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:1rem;display:grid}.vocab-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1rem;transition:transform .2s}.vocab-card:hover{transform:translateY(-2px)}.vocab-card.mastered{border-color:#4ade804d}.vocab-french{color:var(--primary);font-size:1.1rem;font-weight:700}.vocab-arrow{color:var(--text-muted);margin:.3rem 0}.vocab-english{font-size:.95rem}.vocab-meta{color:var(--text-muted);justify-content:space-between;align-items:center;margin-top:.75rem;font-size:.75rem;display:flex}.master-btn{color:var(--success);cursor:pointer;background:0 0;border:1px solid #4ade8066;border-radius:8px;padding:.2rem .5rem;font-size:.75rem;transition:all .2s}.master-btn:hover{background:#4ade801a}.mastered-badge{color:var(--success)}.loading{text-align:center;color:var(--text-muted);padding:3rem}.motivation-banner{border-radius:var(--radius);text-align:center;background:linear-gradient(135deg,#6c63ff26,#ff65841a);border:1px solid #6c63ff40;margin-bottom:1.5rem;padding:1rem 1.25rem;font-size:.95rem}.activity-chart{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:1.5rem;padding:1.25rem}.activity-chart h3{margin-bottom:1rem;font-size:1rem}.chart-bars{justify-content:space-around;align-items:flex-end;gap:.5rem;height:90px;display:flex}.chart-bar-col{flex-direction:column;flex:1;align-items:center;gap:4px;height:100%;display:flex}.chart-bar-wrap{flex:1;justify-content:center;align-items:flex-end;width:100%;display:flex}.chart-bar-fill{background:linear-gradient(to top, var(--primary), #6c63ff66);border-radius:4px 4px 0 0;width:70%;min-height:4px;transition:height .5s}.chart-bar-label{color:var(--text-muted);font-size:.7rem}.chart-bar-xp{color:var(--primary);font-size:.65rem;font-weight:600}.badges-section{margin-bottom:1.5rem}.badges-section h3{margin-bottom:1rem;font-size:1rem}.badges-grid{grid-template-columns:repeat(auto-fill,minmax(90px,1fr));gap:.75rem;display:grid}.badge{text-align:center;border:1px solid var(--border);border-radius:12px;padding:.75rem .5rem}.badge.unlocked{background:#6c63ff1a;border-color:#6c63ff4d}.badge.locked{opacity:.35;background:var(--surface)}.badge-emoji{margin-bottom:.3rem;font-size:1.6rem}.badge-label{color:var(--text-muted);font-size:.7rem;line-height:1.2}.flashcards-container{padding:1rem 0}.fc-header{justify-content:space-between;align-items:flex-start;margin-bottom:.75rem;display:flex}.fc-header h2{margin-bottom:.2rem;font-size:1.3rem}.fc-date{color:var(--text-muted);font-size:.8rem}.fc-count-badge{background:var(--surface);border:1px solid var(--border);white-space:nowrap;border-radius:100px;padding:.3rem .75rem;font-size:.85rem;font-weight:600}.fc-progress-bar{background:#ffffff0f;border-radius:100px;height:8px;margin-bottom:1.5rem;overflow:hidden}.fc-progress-fill{background:linear-gradient(90deg, var(--primary), var(--accent));border-radius:100px;height:100%;transition:width .4s}.fc-card-new{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);text-align:center;margin-bottom:1.25rem;padding:2rem 1.5rem}.fc-category{color:var(--primary);text-transform:uppercase;letter-spacing:.05em;margin-bottom:.75rem;font-size:.75rem;font-weight:600}.fc-english{margin-bottom:.5rem;font-size:1.4rem;font-weight:700}.fc-arrow{color:var(--text-muted);font-size:.8rem}.fc-input-area{gap:.75rem;margin-bottom:.75rem;display:flex}.fc-input-area input{background:var(--surface);border:1px solid var(--border);color:var(--text);border-radius:var(--radius);outline:none;flex:1;padding:.8rem 1rem;font-size:1rem;transition:border-color .2s}.fc-input-area input:focus{border-color:var(--primary)}.fc-input-area button{background:var(--primary);color:#fff;border-radius:var(--radius);cursor:pointer;white-space:nowrap;border:none;padding:.8rem 1.25rem;font-weight:600;transition:background .2s}.fc-input-area button:disabled{opacity:.5;cursor:not-allowed}.fc-input-area button:hover:not(:disabled){background:var(--primary-dark)}.fc-hints{min-height:2rem;margin-bottom:1rem}.hint-btn{color:var(--primary);cursor:pointer;background:0 0;border:1px dashed #6c63ff66;border-radius:8px;padding:.4rem 1rem;font-size:.85rem;transition:all .2s}.hint-btn:hover{background:#6c63ff14}.hint-display{background:#6c63ff14;border:1px solid #6c63ff33;border-radius:8px;align-items:center;gap:.75rem;padding:.6rem 1rem;font-family:monospace;font-size:.95rem;display:flex}.hint-display.full{color:var(--success);background:#4ade800f;border-color:#4ade804d;font-family:inherit}.hint-more{color:var(--primary);cursor:pointer;white-space:nowrap;background:0 0;border:1px solid #6c63ff4d;border-radius:6px;margin-left:auto;padding:.2rem .6rem;font-size:.78rem}.fc-result{border-radius:var(--radius);text-align:center;flex-direction:column;align-items:center;gap:.75rem;padding:1.5rem;display:flex}.fc-result.correct{background:#4ade8014;border:1px solid #4ade804d}.fc-result.wrong{background:#ff658414;border:1px solid #ff65844d}.fc-result-icon{font-size:2rem}.fc-result-title{font-size:1.15rem;font-weight:700}.fc-your-answer{color:var(--text-muted);font-size:.9rem}.fc-explanation{color:var(--text);text-align:left;background:#ffffff0a;border-radius:8px;width:100%;padding:.75rem 1rem;font-size:.9rem;line-height:1.6}.fc-explanation.loading{color:var(--text-muted);text-align:center;font-style:italic}.fc-answer-reveal{justify-content:center;width:100%;display:flex}.fc-listen-btn{border:1px solid var(--primary);color:var(--primary);border-radius:var(--radius);cursor:pointer;background:#6c63ff26;padding:.6rem 1.25rem;font-size:1rem;font-weight:600;transition:all .2s}.fc-listen-btn:hover{background:#6c63ff40}.fc-listen-btn.playing{border-color:var(--accent);color:var(--accent)}.fc-listen-btn:disabled{opacity:.6;cursor:not-allowed}.fc-wrong-actions{gap:.75rem;width:100%;display:flex}.fc-retry,.fc-skip{border-radius:var(--radius);cursor:pointer;flex:1;padding:.75rem;font-size:.95rem;font-weight:600;transition:all .15s}.fc-retry{border:1px solid var(--primary);color:var(--primary);background:#6c63ff1f}.fc-retry:hover{background:#6c63ff38}.fc-skip{border:1px solid var(--border);color:var(--text-muted);background:0 0}.fc-skip:hover{border-color:var(--text-muted);color:var(--text)}.fc-done{text-align:center;flex-direction:column;align-items:center;gap:1rem;padding:3rem 1rem;display:flex}.fc-done h2{font-size:1.5rem}.fc-done-stats{gap:1.5rem;display:flex}.fc-stat{border-radius:8px;padding:.5rem 1rem;font-weight:600}.fc-stat.easy{color:var(--success);background:#4ade8026}.fc-stat.hard{color:var(--accent);background:#ff658426}.lessons-container{padding:1rem 0}.lessons-container h2{margin-bottom:.4rem;font-size:1.4rem}.lessons-subtitle{color:var(--text-muted);margin-bottom:1.5rem;font-size:.9rem}.lessons-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:1rem;display:grid}.lesson-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);text-align:center;cursor:pointer;color:var(--text);flex-direction:column;gap:.4rem;padding:1.5rem 1rem;transition:all .2s;display:flex}.lesson-card:hover{border-color:var(--primary);background:#6c63ff14;transform:translateY(-3px)}.lesson-emoji{font-size:2rem;line-height:1}.lesson-title{color:var(--text);font-size:.95rem;font-weight:700}.lesson-subtitle{color:var(--text-muted);font-size:.75rem}.exercise-container{flex-direction:column;min-height:calc(100vh - 160px);display:flex}.exercise-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;margin-bottom:1.5rem;padding:.75rem 0;display:flex}.back-btn{border:1px solid var(--border);color:var(--text-muted);cursor:pointer;background:0 0;border-radius:8px;padding:.4rem .8rem;font-size:.85rem;transition:all .2s}.back-btn:hover{border-color:var(--primary);color:var(--text)}.exercise-info{flex-direction:column;align-items:center;gap:.2rem;font-size:.9rem;display:flex}.session-xp{color:var(--primary);font-size:.8rem;font-weight:700}.exercise-progress{color:var(--text-muted);font-size:.8rem}.exercise-body{flex-direction:column;flex:1;gap:1.25rem;display:flex}.exercise-loading{color:var(--text-muted);flex-direction:column;justify-content:center;align-items:center;gap:1rem;padding:3rem;display:flex}.loading-dots{gap:6px;display:flex}.loading-dots span{background:var(--primary);border-radius:50%;width:10px;height:10px;animation:1.2s infinite bounce}.loading-dots span:nth-child(2){animation-delay:.2s}.loading-dots span:nth-child(3){animation-delay:.4s}.exercise-instruction{color:var(--text-muted);font-size:.9rem}.exercise-question{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);align-items:center;gap:1rem;padding:1.25rem 1.5rem;font-size:1.4rem;font-weight:600;display:flex}.play-btn{color:var(--primary);cursor:pointer;background:#6c63ff26;border:1px solid #6c63ff4d;border-radius:8px;flex-shrink:0;padding:.4rem .7rem;font-size:1rem;transition:all .2s}.play-btn:hover{background:#6c63ff40}.play-btn.playing{border-color:var(--accent);color:var(--accent);background:#ff658426}.exercise-phonetic{color:var(--text-muted);font-size:.95rem;font-style:italic}.exercise-hint{color:var(--text-muted);background:#6c63ff14;border:1px solid #6c63ff33;border-radius:8px;padding:.6rem 1rem;font-size:.85rem}.options-grid{grid-template-columns:1fr 1fr;gap:.75rem;display:grid}.option-btn{background:var(--surface);border:2px solid var(--border);color:var(--text);border-radius:var(--radius);cursor:pointer;text-align:center;padding:1rem;font-size:.95rem;font-weight:500;transition:all .15s}.option-btn:hover{border-color:var(--primary);background:#6c63ff14}.translate-input{gap:.75rem;display:flex}.translate-input input{background:var(--surface);border:1px solid var(--border);color:var(--text);border-radius:var(--radius);outline:none;flex:1;padding:.75rem 1rem;font-size:.95rem;transition:border-color .2s}.translate-input input:focus{border-color:var(--primary)}.translate-input button{background:var(--primary);color:#fff;border-radius:var(--radius);cursor:pointer;white-space:nowrap;border:none;padding:.75rem 1.25rem;font-weight:600}.translate-input button:disabled{opacity:.5;cursor:not-allowed}.pronunciation-area{flex-direction:column;align-items:center;gap:1rem;display:flex}.pronun-translation{color:var(--text-muted);font-size:1rem;font-style:italic}.pronun-buttons{flex-wrap:wrap;justify-content:center;gap:1rem;display:flex}.listen-first-btn{border:1px solid var(--primary);color:var(--primary);border-radius:var(--radius);cursor:pointer;background:#6c63ff26;padding:.75rem 1.5rem;font-size:.95rem;font-weight:600;transition:all .2s}.listen-first-btn:hover{background:#6c63ff40}.listen-first-btn:disabled{opacity:.5;cursor:not-allowed}.record-btn{border:1px solid var(--accent);color:var(--accent);border-radius:var(--radius);cursor:pointer;background:#ff658426;padding:.75rem 1.5rem;font-size:.95rem;font-weight:600;transition:all .2s}.record-btn.recording{animation:1s infinite pulse}.record-btn:disabled{opacity:.5;cursor:not-allowed}.result-card{border-radius:var(--radius);text-align:center;flex-direction:column;align-items:center;gap:.75rem;padding:1.5rem;display:flex}.result-card.correct{background:#4ade801a;border:1px solid #4ade804d}.result-card.wrong{background:#ff65841a;border:1px solid #ff65844d}.result-icon{font-size:2rem}.result-text{font-size:1.1rem;font-weight:700}.result-feedback{color:var(--text-muted);font-size:.9rem}.result-feedback p{margin-bottom:.2rem}.xp-gained{color:var(--primary);font-size:1rem;font-weight:700}.next-btn{background:var(--primary);color:#fff;border-radius:var(--radius);cursor:pointer;border:none;margin-top:.5rem;padding:.8rem 2rem;font-size:1rem;font-weight:600;transition:background .2s}.next-btn:hover{background:var(--primary-dark)}.exercise-error{text-align:center;color:var(--text-muted);padding:2rem}.exercise-error button{background:var(--primary);color:#fff;border-radius:var(--radius);cursor:pointer;border:none;margin-top:1rem;padding:.6rem 1.5rem}.voice-bar{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;margin-bottom:.5rem;padding:.5rem 0;display:flex}.voice-bar-left{align-items:center;gap:.75rem;display:flex}.fifi-label{font-size:.9rem;font-weight:600}.stop-btn{border:1px solid var(--accent);color:var(--accent);cursor:pointer;background:#ff658426;border-radius:8px;padding:.2rem .6rem;font-size:.8rem}.voice-bar-right{align-items:center;display:flex}.toggle-label{cursor:pointer;color:var(--text-muted);align-items:center;gap:.5rem;font-size:.85rem;display:flex}.toggle{background:#ffffff1a;border-radius:100px;width:42px;height:24px;transition:background .2s;position:relative}.toggle.on{background:var(--primary)}.toggle-thumb{background:#fff;border-radius:50%;width:18px;height:18px;transition:transform .2s;position:absolute;top:3px;left:3px}.toggle.on .toggle-thumb{transform:translate(18px)}.mic-btn{border:1px solid var(--border);color:var(--text);border-radius:var(--radius);cursor:pointer;background:0 0;flex-shrink:0;padding:.75rem;font-size:1.2rem;transition:all .2s}.mic-btn:hover:not(:disabled){border-color:var(--primary)}.mic-btn.listening{border-color:var(--accent);background:#ff658426;animation:1s infinite pulse}@keyframes pulse{0%,to{box-shadow:0 0 #ff658466}50%{box-shadow:0 0 0 8px #ff658400}}.replay-btn{cursor:pointer;opacity:.5;background:0 0;border:none;margin-top:.3rem;padding:.1rem .3rem;font-size:.85rem;transition:opacity .2s;display:block}.replay-btn:hover{opacity:1}.transcript-preview{text-align:center;color:var(--text-muted);padding:.5rem;font-size:.9rem;font-style:italic;animation:.2s fadeIn}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.lock-screen{background:var(--bg);justify-content:center;align-items:center;min-height:100vh;display:flex}.lock-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);text-align:center;width:100%;max-width:340px;padding:2.5rem 2rem}.lock-emoji{margin-bottom:1rem;font-size:3rem}.lock-card h1{margin-bottom:.5rem;font-size:1.5rem}.lock-card p{color:var(--text-muted);margin-bottom:1.5rem;font-size:.9rem}.lock-card input{background:var(--bg);border:1px solid var(--border);width:100%;color:var(--text);border-radius:var(--radius);text-align:center;letter-spacing:.4rem;outline:none;margin-bottom:.75rem;padding:.85rem 1rem;font-size:1.4rem;transition:border-color .2s}.lock-card input:focus{border-color:var(--primary)}.lock-card button{background:var(--primary);color:#fff;border-radius:var(--radius);cursor:pointer;border:none;width:100%;padding:.85rem;font-size:1rem;font-weight:600;transition:background .2s}.lock-card button:hover{background:var(--primary-dark)}.lock-error{color:var(--accent);margin-bottom:.75rem;font-size:.85rem}@keyframes shake{0%,to{transform:translate(0)}20%,60%{transform:translate(-8px)}40%,80%{transform:translate(8px)}}.shake{animation:.4s shake;border-color:var(--accent)!important}@media (width<=600px){.chat-container{height:calc(100vh - 180px)}.bubble{max-width:88%;font-size:.9rem}.stats-grid{grid-template-columns:repeat(2,1fr)}.vocab-grid{grid-template-columns:1fr}}
