:root{--green: #58cc02;--green-dark: #46a302;--green-light: #d7ffb8;--blue: #1cb0f6;--blue-dark: #1899d6;--red: #ff4b4b;--red-dark: #ea2b2b;--orange: #ff9600;--yellow: #ffc800;--purple: #ce82ff;--text: #4b4b4b;--text-light: #777;--border: #e5e5e5;--bg: #fff;--off: 170px;font-size:16px}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%}body{font-family:Nunito,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;color:var(--text);background:#f5f5f5;-webkit-font-smoothing:antialiased;overscroll-behavior-y:none}button{font-family:inherit;cursor:pointer}input{font-family:inherit}.app{min-height:100%;display:flex;flex-direction:column;background:#f5f5f5}.header{position:sticky;top:0;z-index:50;display:flex;align-items:center;justify-content:space-between;height:70px;padding:0 20px;background:#fff;border-bottom:2px solid var(--border)}.logo{display:flex;align-items:center;gap:10px;background:none;border:none;font-size:1.35rem;font-weight:900;color:var(--green);letter-spacing:-.5px}.logo-owl{font-size:1.8rem}.header-stats{display:flex;align-items:center;gap:8px}.stat-badge{display:flex;align-items:center;gap:5px;height:44px;padding:0 12px;background:#fff;border:2px solid var(--border);border-radius:14px;font-weight:800;font-size:1rem;color:var(--text);transition:transform .12s,box-shadow .12s}.stat-badge:active{transform:scale(.95)}.stat-streak.stat-active{border-color:var(--orange);color:var(--orange)}.stat-xp{color:var(--blue);border-color:var(--blue)}.stat-level{color:var(--purple);border-color:var(--purple);cursor:default}.avatar{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,#1cb0f6,#58cc02);border:2px solid #fff;box-shadow:0 0 0 2px var(--border);color:#fff;font-weight:900;font-size:1.2rem;display:flex;align-items:center;justify-content:center;transition:transform .12s}.avatar:active{transform:scale(.92)}.app-body{flex:1;display:flex;max-width:1100px;width:100%;margin:0 auto}.main{flex:1;padding:28px 20px 100px;min-width:0}.sidebar{width:230px;padding:30px 12px 20px;flex-shrink:0}.side-nav{display:flex;flex-direction:column;gap:6px;position:sticky;top:100px}.side-item{display:flex;align-items:center;gap:12px;padding:13px 16px;border:none;border-radius:16px;background:transparent;color:var(--text);font-size:1.05rem;font-weight:800;text-align:left;transition:background .15s,color .15s}.side-item:hover{background:#f0f0f0}.side-item-active{background:var(--blue);color:#fff}.side-icon{font-size:1.3rem}.sidebar-foot{position:sticky;top:260px;margin-top:30px;padding:14px;background:#fff;border:2px solid var(--border);border-radius:16px;font-size:.85rem;color:var(--text-light);line-height:1.45}.bottom-nav{display:none;position:fixed;bottom:0;left:0;right:0;z-index:50;background:#fff;border-top:2px solid var(--border);padding:6px 4px calc(6px + env(safe-area-inset-bottom));justify-content:space-around}.bottom-item{display:flex;flex-direction:column;align-items:center;gap:2px;background:none;border:none;padding:6px 14px;color:#afafaf;font-size:.72rem;font-weight:800}.bottom-item-active{color:var(--blue)}.bottom-icon{font-size:1.4rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border:none;border-radius:16px;font-size:.95rem;font-weight:900;text-transform:uppercase;letter-spacing:.6px;transition:transform .1s,box-shadow .1s,filter .1s;-webkit-user-select:none;user-select:none}.btn:active{transform:translateY(2px);box-shadow:none!important;filter:brightness(.95)}.btn:disabled{opacity:.4;cursor:not-allowed;transform:none}.btn-green{background:var(--green);color:#fff;box-shadow:0 4px 0 var(--green-dark)}.btn-blue{background:var(--blue);color:#fff;box-shadow:0 4px 0 var(--blue-dark)}.btn-white{background:#fff;color:var(--text);border:2px solid var(--border);box-shadow:0 4px #d9d9d9}.btn-danger{color:var(--red)}.btn-big{padding:16px 34px;font-size:1.05rem}.btn-block{width:100%}.icon-btn{width:44px;height:44px;border-radius:12px;background:none;border:none;font-size:1.3rem;color:var(--text-light);display:flex;align-items:center;justify-content:center;transition:background .15s}.icon-btn:hover{background:#f0f0f0}.path-wrap{max-width:640px;margin:0 auto}.path-intro{text-align:center;margin-bottom:24px}.path-intro h1{font-size:2rem;font-weight:900;color:var(--text);letter-spacing:-.5px}.path-intro p{color:var(--text-light);margin-top:6px;font-size:1rem}.path{position:relative;padding:10px 0 30px}.path-line{position:absolute;left:50%;top:30px;bottom:40px;width:10px;transform:translate(-50%);background:var(--border);border-radius:6px;z-index:0}.unit-block{position:relative;margin-bottom:42px;z-index:1}.unit-title{display:inline-flex;align-items:center;gap:10px;margin:0 auto 26px;padding:10px 24px;color:#fff;font-weight:900;font-size:1.02rem;border-radius:18px;box-shadow:0 4px #00000026;position:relative;left:50%;transform:translate(-50%);white-space:nowrap}.unit-progress{font-size:.8rem;opacity:.9;background:#ffffff40;padding:2px 10px;border-radius:10px}.unit-nodes{position:relative;display:flex;flex-direction:column;align-items:center;gap:30px;z-index:1}.node-wrap{position:relative}.node{width:92px;height:92px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.6rem;font-weight:900;border:none;color:#fff;transition:transform .15s,box-shadow .15s}.node-num{font-size:1.6rem;font-weight:900}.node-done{background:var(--uc, var(--green));box-shadow:0 6px #0003}.node-done:hover{transform:scale(1.06)}.node-current{background:#fff;color:var(--uc, var(--green));border:4px solid var(--uc, var(--green));animation:pulse-ring 1.8s ease-in-out infinite;cursor:pointer}.node-current:hover{transform:scale(1.06)}.node-locked{background:#e5e5e5;color:#afafaf;cursor:not-allowed;box-shadow:0 6px #d0d0d0}.node-trophy{background:#f0f0f0;border:3px dashed #d5d5d5;color:#c5c5c5;font-size:2rem;cursor:default;box-shadow:none}.node-trophy-done{background:var(--yellow);border:none;color:#fff;box-shadow:0 6px #0003;animation:trophy-bounce 1.2s ease-in-out infinite}.node-tooltip{position:absolute;top:-38px;left:50%;transform:translate(-50%);background:var(--blue);color:#fff;font-size:.75rem;font-weight:900;padding:4px 12px;border-radius:10px;white-space:nowrap;animation:float 1.6s ease-in-out infinite}.node-tooltip:after{content:"";position:absolute;top:100%;left:50%;transform:translate(-50%);border:6px solid transparent;border-top-color:var(--blue)}.col-0{transform:translate(calc(-1 * var(--off)))}.col-1{transform:translate(0)}.col-2{transform:translate(var(--off))}.path-end{text-align:center;font-size:2.4rem;padding:20px 0 10px;position:relative;z-index:1}@keyframes pulse-ring{0%{box-shadow:0 0 #1bb0f673}70%{box-shadow:0 0 0 16px #1bb0f600}to{box-shadow:0 0 #1bb0f600}}@keyframes trophy-bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-6px)}}@keyframes float{0%,to{transform:translate(-50%)}50%{transform:translate(-50%,-5px)}}@keyframes pop-in{0%{transform:scale(.7);opacity:0}70%{transform:scale(1.08)}to{transform:scale(1);opacity:1}}@keyframes shake-x{0%,to{transform:translate(0)}20%{transform:translate(-10px)}40%{transform:translate(10px)}60%{transform:translate(-7px)}80%{transform:translate(7px)}}.shake{animation:shake-x .5s ease}.lesson-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;background:#fff;display:flex;flex-direction:column;animation:fade-in .2s ease}@keyframes fade-in{0%{opacity:0}to{opacity:1}}.lesson-screen{flex:1;display:flex;flex-direction:column;max-width:720px;width:100%;margin:0 auto;padding:20px 20px 0}.lesson-top{display:flex;align-items:center;gap:14px;padding:8px 0 16px}.progress-track{flex:1;height:16px;border-radius:8px;background:#e5e5e5;overflow:hidden}.progress-fill{height:100%;border-radius:8px;background:var(--green);transition:width .35s ease}.hearts{display:flex;gap:3px;font-size:1.25rem}.heart{transition:transform .2s}.heart-lost{filter:grayscale(1);opacity:.35;transform:scale(.9)}.exercise-area{flex:1;display:flex;flex-direction:column;justify-content:center;padding-bottom:16px}.exercise{display:flex;flex-direction:column;animation:pop-in .25s ease}.ex-emoji{font-size:4.5rem;text-align:center;margin-bottom:14px;animation:float-emoji 2.4s ease-in-out infinite}@keyframes float-emoji{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}.prompt{display:flex;align-items:center;justify-content:center;gap:10px;font-size:1.65rem;font-weight:900;color:var(--text);text-align:center;margin-bottom:26px;line-height:1.3;min-height:60px}.mini-speak{width:40px;height:40px;border-radius:50%;background:var(--blue);border:none;font-size:1.1rem;color:#fff;display:inline-flex;align-items:center;justify-content:center;box-shadow:0 3px 0 var(--blue-dark);transition:transform .12s}.mini-speak:active{transform:translateY(2px)}.options{display:flex;flex-direction:column;gap:12px}.option{padding:15px 20px;border-radius:14px;border:2px solid var(--border);background:#fff;font-size:1.05rem;font-weight:800;color:var(--text);text-align:left;transition:all .15s}.option:hover{background:#f7f7f7}.option-selected{border-color:var(--blue);background:#ddf4ff;color:var(--blue);box-shadow:0 2px 0 var(--blue-dark)}.option-correct{border-color:var(--green);background:var(--green-light);color:var(--green-dark);animation:pop-in .3s ease}.option-wrong{border-color:var(--red);background:#ffdfe0;color:var(--red);animation:shake-x .45s ease}.hint{margin-top:16px;font-size:.95rem;color:var(--text-light);text-align:center}.correct-answer{margin-top:14px;font-size:1.05rem;color:var(--green-dark);text-align:center}.type-input{width:100%;padding:16px 20px;border:2px solid var(--border);border-radius:14px;font-size:1.25rem;font-weight:800;color:var(--text);outline:none;background:#fff;text-align:center;transition:border-color .15s,box-shadow .15s}.type-input:focus{border-color:var(--blue);box-shadow:0 0 0 4px #1cb0f626}.listen-box{display:flex;flex-direction:column;align-items:center;gap:14px;margin-bottom:26px}.speaker{width:100px;height:100px;border-radius:50%;background:#fff;border:3px solid var(--blue);font-size:2.6rem;color:var(--blue);display:flex;align-items:center;justify-content:center;box-shadow:0 5px 0 var(--blue-dark);transition:transform .15s}.speaker:active{transform:translateY(4px);box-shadow:none}.speaker-pulse{animation:pulse-ring 1s ease-in-out infinite}.listen-label{font-size:1rem;font-weight:800;color:var(--text-light)}.match-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.match-col{display:flex;flex-direction:column;gap:10px}.match-item{padding:13px 14px;border-radius:12px;border:2px solid var(--border);background:#fff;font-size:.98rem;font-weight:800;color:var(--text);transition:all .15s;text-align:center}.match-item:hover{background:#f7f7f7}.match-sel{border-color:var(--blue);background:#ddf4ff;color:var(--blue)}.match-done{border-color:var(--green);background:var(--green-light);color:var(--green-dark);opacity:.55;pointer-events:none}.match-shake{border-color:var(--red);background:#ffdfe0;animation:shake-x .4s ease}.arrange-line{min-height:70px;padding:14px;border:2px dashed var(--border);border-radius:14px;background:#fafafa;display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:18px}.arrange-placeholder{color:#bbb;font-size:.95rem;width:100%;text-align:center}.chip{padding:10px 16px;border-radius:12px;border:2px solid var(--border);background:#fff;font-size:1.05rem;font-weight:800;color:var(--text);transition:all .12s}.chip:hover{border-color:var(--blue);color:var(--blue);transform:translateY(-2px)}.chip:active{transform:translateY(1px)}.chip-line{border-color:var(--blue);background:#ddf4ff;color:var(--blue)}.arrange-bank{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px;min-height:50px}.correct-sentence{width:100%;font-size:1.05rem;color:var(--green-dark);margin-top:10px}.lesson-footer{padding:16px 0 26px}.lesson-footer .btn{min-height:54px;font-size:1.05rem}.end-screen{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:30px 20px;text-align:center;position:relative;max-width:720px;width:100%;margin:0 auto}.confetti-canvas{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;pointer-events:none;z-index:5}.end-emoji{font-size:5rem;animation:trophy-bounce 1.4s ease-in-out infinite;position:relative;z-index:6}.end-screen h2{font-size:2.2rem;font-weight:900;position:relative;z-index:6}.end-sub{color:var(--text-light);font-size:1.05rem;position:relative;z-index:6}.xp-card{display:flex;align-items:center;gap:10px;padding:16px 40px;border-radius:18px;background:var(--green);color:#fff;font-size:1.6rem;font-weight:900;box-shadow:0 5px 0 var(--green-dark);position:relative;z-index:6}.streak-card{padding:10px 26px;border-radius:14px;background:#fff;border:2px solid var(--orange);color:var(--orange);font-weight:900;font-size:1.05rem;position:relative;z-index:6}.end-screen .btn{min-height:54px;max-width:420px;width:100%;position:relative;z-index:6}.profile{max-width:720px;margin:0 auto}.profile-hero{display:flex;align-items:center;gap:30px;background:#fff;border:2px solid var(--border);border-radius:24px;padding:30px;flex-wrap:wrap}.level-ring-wrap{position:relative;width:140px;height:140px;flex-shrink:0}.level-ring{width:140px;height:140px;transform:rotate(90deg)}.level-ring-wrap circle{transition:stroke-dasharray .6s ease}.level-ring-center{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center}.level-num{font-size:2.2rem;font-weight:900;color:var(--blue);line-height:1}.level-label{font-size:.8rem;color:var(--text-light);font-weight:800;margin-top:4px}.profile-info{flex:1;min-width:220px}.profile-info h2{font-size:1.7rem;font-weight:900;margin-bottom:4px}.wave{display:inline-block;animation:float-emoji 2s ease-in-out infinite}.profile-sub{color:var(--text-light);margin-bottom:16px}.xp-line{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--text-light);font-size:.9rem}.xp-bar{height:12px}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:14px;margin:20px 0}.stat-card{background:#fff;border:2px solid var(--border);border-radius:18px;padding:20px 14px;text-align:center;transition:transform .15s}.stat-card:hover{transform:translateY(-3px)}.stat-icon{font-size:1.8rem}.stat-value{font-size:1.5rem;font-weight:900;margin:6px 0 2px}.stat-label{font-size:.8rem;color:var(--text-light);font-weight:800}.profile-actions{display:flex;gap:12px;flex-wrap:wrap}.dictionary{max-width:720px;margin:0 auto}.dictionary h1,.practice h1{font-size:1.9rem;font-weight:900}.sub{color:var(--text-light);margin:6px 0 20px}.dict-search{width:100%;padding:15px 20px;border:2px solid var(--border);border-radius:14px;font-size:1.05rem;font-weight:800;outline:none;margin-bottom:24px}.dict-search:focus{border-color:var(--blue)}.dict-group{margin-bottom:22px}.dict-group-title{font-size:1rem;font-weight:900;color:var(--text-light);text-transform:uppercase;letter-spacing:.8px;margin-bottom:10px}.dict-list{background:#fff;border:2px solid var(--border);border-radius:16px;overflow:hidden}.dict-row{display:flex;align-items:center;gap:10px;padding:12px 18px;border-bottom:1px solid var(--border)}.dict-row:last-child{border-bottom:none}.dict-de{display:flex;align-items:center;gap:8px;flex:1;font-size:1.02rem}.dict-arrow{color:#bbb}.dict-tr{color:var(--text-light);font-weight:700}.art{font-size:.75rem;font-weight:900;padding:2px 8px;border-radius:8px}.art-der{background:#ddf4ff;color:var(--blue)}.art-die{background:#ffdfe0;color:var(--red)}.art-das{background:var(--green-light);color:var(--green-dark)}.dict-empty{text-align:center;color:var(--text-light);padding:40px}.practice{max-width:720px;margin:0 auto}.empty-card{background:#fff;border:2px dashed var(--border);border-radius:20px;padding:50px 30px;text-align:center}.empty-emoji{font-size:3rem;margin-bottom:14px}.empty-card p{font-weight:800;font-size:1.1rem}.empty-sub{color:var(--text-light);font-weight:600!important;font-size:.95rem!important;margin-top:6px}.practice-stats{display:flex;gap:14px;flex-wrap:wrap;margin-top:24px}.practice-stat{flex:1;min-width:180px;background:#fff;border:2px solid var(--border);border-radius:16px;padding:16px;font-weight:800;color:var(--text-light)}.practice-stat-icon{font-size:1.3rem;margin-right:6px}.practice-stat b{color:var(--text)}@media (max-width: 860px){:root{--off: 100px}.sidebar{display:none}.bottom-nav{display:flex}.app-body{padding-bottom:0}.main{padding:20px 14px 110px}.node{width:74px;height:74px;font-size:1.3rem}.node-num{font-size:1.3rem}.node-tooltip{top:-34px}.unit-nodes{gap:26px}.unit-title{font-size:.9rem;padding:8px 16px}.prompt{font-size:1.35rem}.ex-emoji{font-size:3.6rem}.header{padding:0 12px;height:60px}.stat-badge{height:38px;padding:0 9px;font-size:.9rem}.avatar{width:38px;height:38px;font-size:1rem}.logo-text{display:none}.profile-hero{padding:22px;gap:20px;justify-content:center;text-align:center}.xp-line{flex-wrap:wrap;justify-content:center}}@media (max-width: 480px){:root{--off: 70px}.match-grid{gap:8px}.match-item{padding:11px 8px;font-size:.88rem}.path-intro h1{font-size:1.6rem}}