*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
:root{
  --bg:#0f0f13;--surface:#1a1a24;--surface2:#242432;--border:#2e2e42;
  --text:#f0f0f5;--muted:#7a7a9a;--accent:#6c63ff;--accent2:#a78bfa;
  --green:#22c55e;--red:#ef4444;--gold:#f59e0b;--r:16px;
}
html,body{height:100%;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;overflow-x:hidden}
#app{max-width:480px;margin:0 auto;min-height:100vh;position:relative}

.screen{display:none;flex-direction:column;min-height:100vh;padding-bottom:32px;animation:fadeIn .18s ease}
.screen.active{display:flex}
@keyframes fadeIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

.top-bar{display:flex;align-items:center;gap:12px;padding:16px 20px;position:sticky;top:0;background:var(--bg);z-index:10;border-bottom:1px solid var(--border)}
.logo{font-size:1.3rem;font-weight:800;letter-spacing:-0.5px;flex:1}
.top-title{flex:1;font-size:1.1rem;font-weight:600;text-align:center}
.back-btn{background:var(--surface);border:1px solid var(--border);color:var(--text);width:36px;height:36px;border-radius:50%;font-size:1rem;cursor:pointer;flex-shrink:0}
.icon-btn{background:transparent;border:none;color:var(--muted);font-size:1.3rem;cursor:pointer;padding:4px 8px}
.session-badge,#list-flag,#q-lang-flag{font-size:1.4rem}

.lang-row{display:flex;gap:8px;flex-wrap:wrap;padding:16px 20px}
.lang-pill{background:var(--surface);border:2px solid var(--border);color:var(--muted);padding:7px 14px;border-radius:100px;font-size:.85rem;cursor:pointer;transition:all .15s}
.lang-pill.active{border-color:var(--accent);color:var(--text);background:rgba(108,99,255,.15)}

.stats-row{display:flex;gap:10px;padding:0 20px 16px}
.stat-box{flex:1;background:var(--surface);border:1px solid var(--border);border-radius:var(--r);padding:14px 10px;text-align:center}
.stat-n{display:block;font-size:1.8rem;font-weight:700}
.stat-l{font-size:.72rem;color:var(--muted)}

.star-bars{padding:0 20px 24px}
.sbar-row{display:flex;align-items:center;gap:8px;margin-bottom:8px;font-size:.82rem}
.sbar-label{width:52px;text-align:right}
.sbar-track{flex:1;background:var(--surface2);border-radius:4px;height:6px}
.sbar-fill{height:6px;border-radius:4px;background:var(--accent);transition:width .4s ease;width:0%}
.sbar-fill.gold{background:var(--gold)}
.sbar-n{width:24px;text-align:right;color:var(--muted);font-size:.78rem}

.home-actions{padding:0 20px;display:flex;flex-direction:column;gap:10px}

.btn-main{width:100%;padding:16px;border-radius:var(--r);font-size:1rem;font-weight:600;cursor:pointer;border:none;background:var(--accent);color:#fff;transition:background .15s}
.btn-main:hover{background:#7c75ff}
.btn-secondary{width:100%;padding:14px;border-radius:var(--r);font-size:.95rem;font-weight:600;cursor:pointer;background:var(--surface2);color:var(--text);border:1px solid var(--border);transition:border-color .15s}
.btn-secondary:hover{border-color:var(--accent)}
.btn-ghost{width:100%;padding:12px;border-radius:var(--r);font-size:.9rem;cursor:pointer;background:transparent;color:var(--muted);border:none}
.btn-ghost:hover{color:var(--text)}
.small{padding:10px;font-size:.85rem}

.session-form{padding:24px 20px;display:flex;flex-direction:column;gap:20px}
.field-group label{display:block;font-size:.75rem;color:var(--muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:8px}
.field-group input{width:100%;background:var(--surface);border:1px solid var(--border);color:var(--text);padding:12px 14px;border-radius:12px;font-size:.95rem;outline:none;transition:border-color .15s}
.field-group input:focus{border-color:var(--accent)}

#upload-area{padding:20px}
.upload-box{background:var(--surface);border:2px dashed var(--border);border-radius:20px;padding:40px 20px;text-align:center;cursor:pointer;transition:border-color .15s}
.upload-box:hover{border-color:var(--accent)}
.upload-icon{font-size:2.5rem;margin-bottom:12px}
.upload-text{font-size:1.1rem;font-weight:600;margin-bottom:6px}
.upload-sub{font-size:.85rem;color:var(--muted)}
.photo-preview{width:100%;border-radius:16px;margin-top:12px;display:block}

.loading-box{padding:40px 20px;text-align:center}
.spinner{width:40px;height:40px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite;margin:0 auto 16px}
@keyframes spin{to{transform:rotate(360deg)}}
.loading-text{color:var(--muted);font-size:.9rem}

#translate-result{padding:0 20px}
.result-section{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);padding:16px;margin-bottom:14px}
.section-title{font-size:.78rem;color:var(--muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:10px}
.translation-text{font-size:.92rem;line-height:1.7;max-height:200px;overflow-y:auto}
.word-count{color:var(--accent2);margin-left:4px}

.word-card{background:var(--surface2);border:1px solid var(--border);border-radius:12px;padding:14px;margin-bottom:10px}
.wc-top{display:flex;justify-content:space-between;align-items:flex-start}
.wc-raw{font-size:1.05rem;font-weight:700}
.wc-base{font-size:.8rem;color:var(--accent2);margin-top:2px}
.wc-trans{font-size:.86rem;color:var(--muted);margin-top:6px}
.wc-example{font-size:.8rem;color:var(--muted);font-style:italic;margin-top:6px;padding-top:6px;border-top:1px solid var(--border)}
.wc-remove{background:transparent;border:none;color:var(--muted);font-size:1.1rem;cursor:pointer;padding:0 4px}
.wc-remove:hover{color:var(--red)}

.review-info{padding:16px 20px;font-size:.9rem;color:var(--muted)}
.review-info strong{color:var(--text)}
#review-cards{padding:0 20px}
.review-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:13px 14px;margin-bottom:9px;display:flex;align-items:center;gap:10px}
.rc-main{flex:1}
.rc-word{font-weight:600}
.rc-base{font-size:.78rem;color:var(--accent2);margin-top:2px}
.rc-trans{font-size:.8rem;color:var(--muted);margin-top:3px}
.rc-del{background:transparent;border:none;color:var(--muted);font-size:1.1rem;cursor:pointer}
.rc-del:hover{color:var(--red)}
.sticky-footer{padding:16px 20px 8px;position:sticky;bottom:0;background:var(--bg);border-top:1px solid var(--border);display:flex;flex-direction:column;gap:8px}

.center-content{display:flex;flex-direction:column;align-items:center;justify-content:center;flex:1;padding:40px 20px;gap:16px;text-align:center}
.big-check{font-size:4rem;color:var(--green)}
.center-content h2{font-size:1.4rem}
.muted{color:var(--muted);font-size:.88rem}
.center-content .btn-main,.center-content .btn-ghost{max-width:320px}

.quiz-meta{flex:1;text-align:center;font-size:.88rem;color:var(--muted)}
.progress-dots{display:flex;gap:5px;flex-wrap:wrap;padding:12px 20px}
.dot{width:10px;height:10px;border-radius:50%;background:var(--surface2);border:1px solid var(--border);transition:all .2s}
.dot.ok{background:var(--green);border-color:var(--green)}
.dot.fail{background:var(--red);border-color:var(--red)}
.dot.cur{background:var(--accent);border-color:var(--accent);transform:scale(1.2)}

.flip-card{background:var(--surface);border:1px solid var(--border);border-radius:24px;margin:0 20px 20px;min-height:260px;display:flex;flex-direction:column;align-items:center;justify-content:center;cursor:pointer;text-align:center;padding:32px 24px}
.q-word{font-size:2.2rem;font-weight:700;letter-spacing:-.5px;margin-bottom:8px}
.q-source{font-size:.76rem;color:var(--muted);margin-bottom:12px}
.q-hint{color:var(--muted);font-size:.82rem;margin-top:auto}
.q-base{font-size:1.5rem;font-weight:700;color:var(--accent2);margin-bottom:6px}
.q-trans{font-size:.92rem;color:var(--muted);margin-bottom:16px}
.q-example{border-top:1px solid var(--border);padding-top:14px;width:100%;text-align:left}
.q-ex-orig{font-style:italic;font-size:.86rem;line-height:1.5;margin-bottom:5px}
.q-ex-de{font-size:.8rem;color:var(--muted);line-height:1.5}

.quiz-btns{display:flex;gap:12px;padding:0 20px}
.btn-wrong,.btn-correct{flex:1;padding:17px;border-radius:var(--r);font-size:1rem;font-weight:700;cursor:pointer;transition:background .15s}
.btn-wrong{background:rgba(239,68,68,.12);color:var(--red);border:2px solid var(--red)}
.btn-wrong:hover{background:rgba(239,68,68,.25)}
.btn-correct{background:rgba(34,197,94,.12);color:var(--green);border:2px solid var(--green)}
.btn-correct:hover{background:rgba(34,197,94,.25)}
.repeat-note{text-align:center;color:var(--gold);font-size:.8rem;margin:10px 20px 0;padding:8px;background:rgba(245,158,11,.1);border-radius:8px;border:1px solid rgba(245,158,11,.25)}

.qresult-score{font-size:4rem;font-weight:800;letter-spacing:-2px}
.qresult-label{font-size:1rem;color:var(--muted)}
.qresult-list{width:100%;max-width:320px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r);padding:12px}
.qr-row{display:flex;justify-content:space-between;padding:7px 0;border-bottom:1px solid var(--border);font-size:.86rem}
.qr-row:last-child{border-bottom:none}
.qr-verdict{color:var(--green)}
.qr-verdict.fail{color:var(--red)}

.list-filter{display:flex;gap:6px;padding:12px 20px;overflow-x:auto;scrollbar-width:none}
.list-filter::-webkit-scrollbar{display:none}
.filter-pill{background:var(--surface);border:1px solid var(--border);color:var(--muted);padding:6px 12px;border-radius:100px;font-size:.8rem;cursor:pointer;white-space:nowrap;flex-shrink:0;transition:all .15s}
.filter-pill.active{border-color:var(--accent);color:var(--text);background:rgba(108,99,255,.15)}
#list-container{padding:0 20px}
.list-item{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:12px 14px;margin-bottom:8px;display:flex;align-items:center;gap:10px}
.li-main{flex:1}
.li-word{font-weight:600;font-size:.93rem}
.li-base{font-size:.76rem;color:var(--muted);margin-top:2px}
.li-stars{font-size:.88rem;letter-spacing:-2px}

.hidden{display:none!important}

/* FOLDERS */
.folder{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);margin-bottom:10px;overflow:hidden}
.folder-header{display:flex;align-items:center;gap:10px;padding:14px 16px;cursor:pointer;user-select:none}
.folder-icon{font-size:1rem;transition:transform .2s}
.folder.open .folder-icon{transform:rotate(90deg)}
.folder-name{flex:1;font-weight:600;font-size:.95rem}
.folder-meta{font-size:.78rem;color:var(--muted)}
.folder-body{display:none;border-top:1px solid var(--border)}
.folder.open .folder-body{display:block}
.folder-word{display:flex;align-items:center;gap:10px;padding:11px 16px;border-bottom:1px solid var(--border)}
.folder-word:last-child{border-bottom:none}
.fw-main{flex:1}
.fw-word{font-size:.93rem;font-weight:600}
.fw-base{font-size:.76rem;color:var(--muted);margin-top:2px}
.fw-actions{display:flex;gap:6px}
.fw-stars{font-size:.82rem;letter-spacing:-2px;margin-right:4px}
.btn-icon{background:transparent;border:none;color:var(--muted);font-size:1rem;cursor:pointer;padding:4px 6px;border-radius:6px}
.btn-icon:hover{background:var(--surface2)}
.btn-icon.del:hover{color:var(--red)}
.btn-icon.edit:hover{color:var(--accent2)}

.mode-tabs{display:flex;gap:0;margin:16px 20px 0;background:var(--surface2);border-radius:12px;padding:4px}
.mode-tab{flex:1;padding:10px;border:none;background:transparent;color:var(--muted);font-size:.9rem;font-weight:600;border-radius:9px;cursor:pointer;transition:all .15s}
.mode-tab.active{background:var(--accent);color:#fff}
.field-group textarea{width:100%;background:var(--surface);border:1px solid var(--border);color:var(--text);padding:12px 14px;border-radius:12px;font-size:.95rem;outline:none;resize:vertical;font-family:inherit;line-height:1.5}
.field-group textarea:focus{border-color:var(--accent)}

/* MODAL */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.7);z-index:100;display:flex;align-items:flex-end;justify-content:center}
.modal-overlay.hidden{display:none!important}
.modal{background:var(--surface);border-radius:24px 24px 0 0;width:100%;max-width:480px;padding:24px 20px 40px;max-height:90vh;overflow-y:auto}
.modal-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.modal-title{font-size:1.1rem;font-weight:700}
.modal-close{background:var(--surface2);border:none;color:var(--muted);width:32px;height:32px;border-radius:50%;font-size:.9rem;cursor:pointer}
.modal-field{margin-bottom:14px}
.modal-field label{display:block;font-size:.72rem;color:var(--muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:6px}
.modal-field input{width:100%;background:var(--surface2);border:1px solid var(--border);color:var(--text);padding:10px 12px;border-radius:10px;font-size:.92rem;outline:none}
.modal-field input:focus{border-color:var(--accent)}