:root{--bg: #0f172a;--surface: #1e293b;--text: #e2e8f0;--muted: #94a3b8;--accent: #38bdf8;--accent-hover: #7dd3fc;--correct: #4ade80;--wrong: #f87171;--radius: 16px;--tap: 48px;--font: "DM Sans", system-ui, -apple-system, sans-serif}*,*:before,*:after{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--bg);height:100%}html{-webkit-tap-highlight-color:transparent}body{font-family:var(--font);font-size:18px;line-height:1.4;color:var(--text);overflow-x:hidden;min-height:100vh;min-height:100dvh}#root{min-height:100vh;min-height:100dvh;display:flex;flex-direction:column}.app{flex:1;display:flex;flex-direction:column;max-width:480px;margin:0 auto;width:100%;padding:12px 16px 24px}.card{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px 16px;background:var(--surface);border-radius:var(--radius);transition:opacity .15s 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24px}.options{display:flex;flex-direction:column;gap:12px;width:100%;max-width:320px}.option-btn{min-height:var(--tap);padding:14px 20px;font:inherit;font-size:1rem;color:var(--text);background:var(--bg);border:2px solid rgba(255,255,255,.08);border-radius:var(--radius);cursor:pointer;transition:background .15s,border-color .15s,transform .1s;-webkit-tap-highlight-color:transparent;text-align:center}.option-btn:hover{background:#334155;border-color:#ffffff1f}.option-btn:active{transform:scale(.98)}.option-btn.correct{background:var(--correct);border-color:var(--correct);color:#000}.option-btn.wrong{background:var(--wrong);border-color:var(--wrong);color:#000}.option-btn:disabled{cursor:default}.option-btn.primary{background:var(--accent);color:var(--bg);border-color:var(--accent);font-weight:600}.option-btn.primary:hover{background:var(--accent-hover);border-color:var(--accent-hover)}@media(min-width:400px){.app{padding:16px 20px 32px}.card{padding:32px 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24px}.stats-list{margin-bottom:32px;text-align:left}.stats-row{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid rgba(255,255,255,.05)}.stats-row:last-child{border-bottom:none}.stats-label{color:var(--muted)}.stats-value{color:var(--text);font-weight:600}.menu-buttons{display:flex;flex-direction:column;gap:16px}.menu-btn{padding:16px 24px;font:inherit;font-size:1rem;font-weight:500;color:var(--text);background:var(--bg);border:2px solid rgba(255,255,255,.1);border-radius:var(--radius);cursor:pointer;transition:background .15s,border-color .15s}.menu-btn:hover{background:#334155;border-color:#ffffff26}.menu-btn.danger{color:var(--wrong);border-color:#f871714d}.menu-btn.danger:hover{background:#f871711a;border-color:#f8717180}.menu-btn.primary{color:var(--text);background:var(--bg);border:2px solid rgba(255,255,255,.1)}.menu-btn.primary:hover{background:var(--accent-hover);border-color:var(--accent-hover)}.add-word-form form{min-height:75vh;display:flex;flex-direction:column;gap:16px}.form-field{display:flex;flex-direction:column;gap:6px;text-align:left}.form-field label{font-size:.85rem;color:var(--muted);font-weight:500}.form-field input{padding:14px 16px;font:inherit;font-size:1rem;color:var(--text);background:var(--bg);border:2px solid rgba(255,255,255,.1);border-radius:var(--radius);outline:none;transition:border-color .15s}.form-field input:focus{border-color:var(--accent)}.form-field input::placeholder{color:var(--muted);opacity:.6}.form-error{color:var(--wrong);font-size:.9rem;margin:0;text-align:center}.word-list-screen{min-height:75vh;display:flex;flex-direction:column}.word-tabs{display:flex;gap:8px;margin-bottom:16px}.word-tab{flex:1;padding:10px 8px;font:inherit;font-size:.85rem;color:var(--muted);background:transparent;border:1px solid rgba(255,255,255,.1);border-radius:8px;cursor:pointer;transition:all 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.15s;flex-shrink:0}.word-action.delete{color:var(--wrong);border-color:#f871714d}.word-action.delete:hover{background:#f8717126}.word-action.restore{color:var(--correct);border-color:#4ade804d}.word-action.restore:hover{background:#4ade8026}.word-empty{color:var(--muted);text-align:center;padding:24px;margin:0}.wm-screen{height:75vh;display:flex;flex-direction:column;width:100%;max-width:420px;background:var(--surface);border-radius:var(--radius);overflow:hidden;box-shadow:0 24px 64px #00000080}.wm-header{display:flex;align-items:center;justify-content:space-between;padding:16px 16px 14px 20px;border-bottom:1px solid rgba(255,255,255,.06);flex-shrink:0;gap:10px}.wm-header-left{display:flex;align-items:center;gap:10px;min-width:0}.wm-title{font-size:1.1rem;font-weight:700;color:var(--text);margin:0;white-space:nowrap}.wm-header-badge{font-size:.7rem;font-weight:600;padding:3px 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transparent;cursor:pointer;gap:12px;transition:border-color .15s,background .15s;-webkit-tap-highlight-color:transparent;margin-bottom:4px}.cat-all-row.active{border-color:#38bdf866;background:#38bdf812}.cat-divider{height:1px;background:#ffffff12;margin:10px 0}.cat-list{display:flex;flex-direction:column;gap:7px}.cat-scroll{flex:1;overflow-y:auto;padding:8px 16px;overscroll-behavior:contain;-webkit-overflow-scrolling:touch}.cat-item{display:flex;align-items:center;padding:13px 14px;background:var(--bg);border-radius:12px;border:2px solid transparent;cursor:pointer;gap:12px;transition:border-color .12s,background .12s;-webkit-tap-highlight-color:transparent}.cat-indicator{width:10px;height:10px;border-radius:50%;flex-shrink:0;transition:background .15s,box-shadow .15s}.cat-name{flex:1;font-size:.9rem;font-weight:500;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.cat-count{font-size:.75rem;color:var(--muted);background:#ffffff12;padding:2px 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rgba(255,255,255,.22);background:transparent;color:var(--text);font-weight:700;cursor:pointer;flex-shrink:0}.wm-select-btn.selected{background:#4ade8038;border-color:#4ade8080;color:var(--correct)}.wm-word-info{flex:1;min-width:0}.wm-word-german{font-size:.93rem;font-weight:600;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.wm-word-meta{display:flex;align-items:center;gap:6px;margin-top:2px;flex-wrap:nowrap;overflow:hidden}.wm-word-russian{font-size:.82rem;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex-shrink:1;min-width:0}.wm-cat-tag{font-size:.66rem;font-weight:600;padding:1px 6px;border-radius:4px;border:1px solid;white-space:nowrap;flex-shrink:0}.wm-action-btn{width:34px;height:34px;display:flex;align-items:center;justify-content:center;font-size:1rem;background:transparent;border-radius:8px;cursor:pointer;transition:background .15s;flex-shrink:0;-webkit-tap-highlight-color:transparent}.wm-action-btn.delete{color:var(--wrong);border:1px solid rgba(248,113,113,.25)}.wm-action-btn.delete:hover{background:#f871711f}.wm-action-btn.restore{color:var(--correct);border:1px solid rgba(74,222,128,.25)}.wm-action-btn.restore:hover{background:#4ade801f}.wm-form{display:flex;flex-direction:column;gap:16px}.wm-form-field{display:flex;flex-direction:column;gap:6px;position:relative}.wm-form-label{font-size:.82rem;color:var(--muted);font-weight:500}.wm-form-input{padding:13px 14px;font:inherit;font-size:.95rem;color:var(--text);background:var(--bg);border:2px solid rgba(255,255,255,.08);border-radius:var(--radius);outline:none;transition:border-color .15s;width:100%;box-sizing:border-box}.wm-form-input:focus{border-color:var(--accent)}.wm-form-input::placeholder{color:var(--muted);opacity:.6}.wm-category-suggestions{position:absolute;left:0;right:0;bottom:calc(100% + 6px);z-index:20;border:1px solid rgba(255,255,255,.12);border-radius:10px;background:var(--bg);box-shadow:0 12px 28px #00000061;max-height:180px;overflow-y:auto;display:flex;flex-direction:column}.wm-category-suggestion-item{text-align:left;padding:10px 12px;background:transparent;border:none;color:var(--text);font:inherit;font-size:.92rem;cursor:pointer}.wm-category-suggestion-item:hover{background:#38bdf81f}.wm-form-error{color:var(--wrong);font-size:.85rem;text-align:center;margin:0}.wm-form-success{display:flex;align-items:center;justify-content:center;gap:8px;padding:12px;border-radius:var(--radius);background:#4ade801a;color:var(--correct);font-weight:600;font-size:.9rem}