:root{--bg:#0f1117;--surface:#181b24;--surface2:#21252f;--surface-hover:#2a2f3c;--border:#2a2f3c;--border-strong:#3a4050;--text:#eceef4;--text-sec:#a0a6b8;--text-muted:#7d8396;--accent:#8e98f5;--accent-secondary:#8e98f5;--accent-gradient:#5b67e0;--accent-gradient-hover:#6e78e8;--accent-bg:#252a4a;--accent-border:#8e98f54d;--accent-glow:#5b67e040;--success:#4cc38a;--success-bg:#17322a;--danger:#f07878;--danger-bg:#3a1f24;--warning:#e8b04e;--warning-bg:#3a2f17;--hindi-bg:#21252f;--hindi-border:#2a2f3c;--hindi-text:#c8ccd8;--radius:12px;--radius-pill:9999px;--shadow-sm:0 1px 2px #0f11170f;--shadow-md:0 6px 20px #0f11171f;--shadow-glow:none}:root[data-theme=light]{--bg:#f5f6fa;--surface:#fff;--surface2:#eef0f6;--surface-hover:#e3e6ee;--border:#e3e6ee;--border-strong:#cdd2de;--text:#1b1f2b;--text-sec:#5f6678;--text-muted:#8a90a2;--accent:#4f5bd5;--accent-secondary:#4f5bd5;--accent-gradient:#4f5bd5;--accent-gradient-hover:#4650c4;--accent-bg:#eceefc;--accent-border:#4f5bd538;--accent-glow:#4f5bd52e;--success:#1e8e5f;--success-bg:#e2f4eb;--danger:#d64545;--danger-bg:#fbe9e9;--warning:#b7791f;--warning-bg:#fbf1dc;--hindi-bg:#f3f4f8;--hindi-border:#e3e6ee;--hindi-text:#394347}@media (prefers-color-scheme:light){:root:not([data-theme=dark]){--bg:#f5f6fa;--surface:#fff;--surface2:#eef0f6;--surface-hover:#e3e6ee;--border:#e3e6ee;--border-strong:#cdd2de;--text:#1b1f2b;--text-sec:#5f6678;--text-muted:#8a90a2;--accent:#4f5bd5;--accent-secondary:#4f5bd5;--accent-gradient:#4f5bd5;--accent-gradient-hover:#4650c4;--accent-bg:#eceefc;--accent-border:#4f5bd538;--accent-glow:#4f5bd52e;--success:#1e8e5f;--success-bg:#e2f4eb;--danger:#d64545;--danger-bg:#fbe9e9;--warning:#b7791f;--warning-bg:#fbf1dc;--hindi-bg:#f3f4f8;--hindi-border:#e3e6ee;--hindi-text:#394347}}:root[data-theme=dark]{--bg:#0f1117;--surface:#181b24;--surface2:#21252f;--surface-hover:#2a2f3c;--border:#2a2f3c;--border-strong:#3a4050;--text:#eceef4;--text-sec:#a0a6b8;--text-muted:#7d8396;--accent:#8e98f5;--accent-secondary:#8e98f5;--accent-gradient:#5b67e0;--accent-gradient-hover:#6e78e8;--accent-bg:#252a4a;--accent-border:#8e98f54d;--accent-glow:#5b67e040;--success:#4cc38a;--success-bg:#17322a;--danger:#f07878;--danger-bg:#3a1f24;--warning:#e8b04e;--warning-bg:#3a2f17;--hindi-bg:#21252f;--hindi-border:#2a2f3c;--hindi-text:#c8ccd8}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);letter-spacing:-.01em;min-height:100vh;font-family:Plus Jakarta Sans,Inter,-apple-system,BlinkMacSystemFont,sans-serif}.container{max-width:760px;margin:0 auto;padding:1.25rem 1rem 4rem}html,body{scroll-behavior:smooth}.header{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:10px;margin-bottom:1.25rem;display:flex}.header-left h1{color:var(--text);align-items:center;gap:8px;margin-bottom:3px;font-size:23px;font-weight:700;display:flex}.header-left p{color:var(--text-sec);font-size:13px}.sync-badge{white-space:nowrap;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid;border-radius:20px;align-items:center;gap:5px;padding:4px 11px;font-size:11px;font-weight:600;display:inline-flex}.sync-badge.online{background:var(--success-bg);color:var(--success);border-color:#0000}.sync-badge.offline{background:var(--danger-bg);color:var(--danger);border-color:#0000}.sync-badge.syncing{background:var(--accent-bg);color:var(--accent);border-color:var(--accent-border)}@keyframes spin{to{transform:rotate(360deg)}}.spin{animation:1s linear infinite spin;display:inline-block}.wod-card{-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border:1px solid var(--accent-border);box-shadow:var(--shadow-sm);background:#111726d9;border-radius:16px;margin-bottom:1.25rem;padding:1.25rem 1.5rem;position:relative;overflow:hidden}.wod-card:before{content:"";background:var(--accent-gradient);height:2px;position:absolute;top:0;left:0;right:0}.wod-label{color:var(--accent);text-transform:uppercase;letter-spacing:1.2px;margin-bottom:6px;font-size:11px;font-weight:700}.wod-word{color:var(--text);align-items:center;gap:8px;margin-bottom:2px;font-size:24px;font-weight:700;display:flex}.wod-pos{background:var(--accent-bg);color:var(--accent);border:1px solid var(--accent-border);border-radius:6px;padding:3px 9px;font-size:11px;font-weight:600}.wod-def{color:var(--text-sec);margin:6px 0;font-size:14px;line-height:1.6}.wod-hindi{color:var(--hindi-text);margin-top:4px;font-family:Noto Sans Devanagari,sans-serif;font-size:13px}.wod-actions{flex-wrap:wrap;gap:8px;margin-top:12px;display:flex}.search-row{gap:10px;margin-bottom:1rem;display:flex}.search-row input{border:1px solid var(--border);background:var(--surface);height:48px;color:var(--text);box-shadow:var(--shadow-sm);border-radius:14px;outline:none;flex:1;padding:0 16px;font-family:inherit;font-size:14px;transition:all .2s}.search-row input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-bg), var(--shadow-glow)}.btn{border:1px solid var(--border);background:var(--surface2);height:42px;color:var(--text);cursor:pointer;white-space:nowrap;border-radius:12px;align-items:center;gap:6px;padding:0 16px;font-family:inherit;font-size:13.5px;font-weight:600;transition:all .2s cubic-bezier(.4,0,.2,1);display:inline-flex}.btn:hover{background:var(--surface-hover);border-color:var(--border-strong)}.btn.primary{background:var(--accent-gradient);color:#fff;box-shadow:none;border:none}.btn.primary:hover{background:var(--accent-gradient-hover);box-shadow:none}.btn.green{background:var(--surface2);color:var(--text);border-color:var(--border)}.btn.orange{background:var(--warning-bg);color:var(--warning);border-color:#fbbf244d}.btn.sm{border-radius:8px;height:32px;padding:0 11px;font-size:12px}.btn.icon{border-radius:50%;justify-content:center;width:38px;height:38px;padding:0}.btn.danger{color:var(--text-muted);border-color:var(--border);background:var(--surface2)}.btn.danger:hover{color:var(--danger);border-color:var(--danger);background:var(--danger-bg)}.result-card{background:var(--surface);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border:1px solid var(--border);box-shadow:var(--shadow-md);border-radius:16px;margin-bottom:1rem;padding:1.25rem 1.5rem;display:none}.result-card.visible{display:block}.word-header{flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:2px;display:flex}.word-title{color:var(--text);font-size:26px;font-weight:700}.phonetic{color:var(--text-muted);margin-bottom:8px;font-size:13.5px}.pos-badge{background:var(--accent-bg);color:var(--accent);border:1px solid var(--accent-border);border-radius:6px;margin-bottom:6px;margin-right:4px;padding:3px 9px;font-size:11px;font-weight:600;display:inline-block}.definition{color:var(--text);margin-bottom:8px;font-size:15px;line-height:1.65}.example{color:var(--text-sec);border-left:3px solid var(--accent);margin-bottom:10px;padding-left:12px;font-size:13.5px;font-style:italic}.synonyms{color:var(--text-muted);margin-bottom:8px;font-size:12.5px}.synonyms span{color:var(--accent);font-weight:500}.antonyms{color:var(--text-muted);margin-bottom:10px;font-size:12.5px}.antonyms span{color:var(--danger);font-weight:500}.hindi-box{background:var(--hindi-bg);border:1px solid var(--hindi-border);border-radius:12px;margin-bottom:12px;padding:11px 14px;display:none}.tabs{-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border:1px solid var(--border);border-radius:var(--radius-pill);scrollbar-width:none;box-shadow:var(--shadow-sm);z-index:100;background:#111726d9;gap:6px;margin-bottom:1rem;padding:6px;display:flex;position:sticky;top:8px;overflow-x:auto}.tabs::-webkit-scrollbar{display:none}.tab{border-radius:var(--radius-pill);color:var(--text-sec);cursor:pointer;white-space:nowrap;background:0 0;border:none;align-items:center;gap:6px;padding:8px 16px;font-family:inherit;font-size:13px;font-weight:500;transition:all .2s cubic-bezier(.4,0,.2,1);display:flex}.tab:hover{color:var(--text);background:var(--surface2)}.tab.active{background:var(--accent-gradient);color:#fff;box-shadow:none;font-weight:600}.hindi-label{color:var(--hindi-text);text-transform:uppercase;letter-spacing:.5px;margin-bottom:3px;font-size:10px;font-weight:600}.hindi-word{color:var(--hindi-text);margin-bottom:2px;font-family:Noto Sans Devanagari,sans-serif;font-size:17px;font-weight:600}.hindi-def{color:var(--hindi-text);font-family:Noto Sans Devanagari,sans-serif;font-size:13px;line-height:1.6}.save-row{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.status-ok{color:var(--success);font-size:12px;font-weight:500}.error-msg{color:var(--danger);padding:7px 0;font-size:13px;display:none}.loading{color:var(--text-muted);align-items:center;gap:6px;padding:8px 0;font-size:13px;display:flex}.tabs{border-bottom:1px solid var(--border);-webkit-overflow-scrolling:touch;z-index:100;background:var(--bg);gap:0;margin-bottom:1rem;padding-top:4px;display:flex;position:sticky;top:0;overflow-x:auto}.tab{color:var(--text-sec);cursor:pointer;white-space:nowrap;background:0 0;border:none;border-bottom:2px solid #0000;margin-bottom:-1px;padding:9px 12px;font-family:inherit;font-size:12px}.tab.active{color:var(--accent);border-bottom-color:var(--accent);font-weight:500}.vault-toolbar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;margin-bottom:10px;display:flex}.count{color:var(--text-muted);font-size:12px}.vault-search{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface2);width:100%;height:36px;color:var(--text);outline:none;margin-bottom:8px;padding:0 12px;font-size:13px}.vault-search:focus{border-color:var(--accent)}.vault-grid{flex-direction:column;gap:8px;display:flex}.vault-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);align-items:flex-start;gap:10px;padding:12px 14px;display:flex}.vault-left{flex:1;min-width:0}.vault-word{font-size:15px;font-weight:700;display:inline;color:var(--text)!important}.vault-pos{margin-left:6px;font-size:11px;font-weight:400;display:inline;color:var(--accent)!important}.vault-def{margin-top:4px;font-size:13px;line-height:1.5;display:block;color:var(--text-sec)!important}.vault-hindi{background:var(--hindi-bg);border:1px solid var(--hindi-border);border-radius:5px;margin-top:4px;padding:4px 8px;font-family:Noto Sans Devanagari,sans-serif;font-size:12px;display:block;color:var(--hindi-text)!important}.vault-ex{margin-top:4px;font-size:12px;font-style:italic;display:block;color:var(--text-muted)!important}.vault-date{margin-top:6px;font-size:11px;display:block;color:var(--text-muted)!important}.vault-actions{flex-direction:column;flex-shrink:0;gap:4px;display:flex}.vault-score{margin-top:4px;font-size:11px}.empty{text-align:center;color:var(--text-muted);padding:2.5rem 1rem;font-size:14px}.empty i{margin-bottom:10px;font-size:32px;display:block}.flashcard-wrap{perspective:1000px;margin-bottom:1rem}.flashcard{width:100%;min-height:200px;transform-style:preserve-3d;cursor:pointer;-webkit-user-select:none;user-select:none;border-radius:16px;transition:transform .5s;position:relative}.flashcard.flipped{transform:rotateY(180deg)}.card-face{backface-visibility:hidden;text-align:center;border:1px solid var(--border);border-radius:16px;flex-direction:column;justify-content:center;align-items:center;width:100%;min-height:200px;padding:1.5rem;display:flex;position:absolute}.card-front{background:var(--surface);top:0;left:0}.card-back{background:var(--accent-bg);border-color:var(--accent-border);top:0;left:0;transform:rotateY(180deg)}.card-word{margin-bottom:6px;font-size:28px;font-weight:700}.card-phonetic{color:var(--text-muted);margin-bottom:8px;font-size:13px}.card-hint{color:var(--text-muted);margin-top:12px;font-size:12px}.card-def{margin-bottom:8px;font-size:15px;line-height:1.6}.card-example{color:var(--text-sec);margin-bottom:8px;font-size:13px;font-style:italic}.card-hindi{color:var(--hindi-text);margin-top:6px;font-family:Noto Sans Devanagari,sans-serif;font-size:14px}.flashcard-nav{justify-content:space-between;align-items:center;gap:8px;margin-bottom:1rem;display:flex}.flashcard-counter{color:var(--text-muted);font-size:13px}.fc-btns{gap:8px;display:flex}.quiz-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;margin-bottom:1rem;padding:1rem 1.25rem}.quiz-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;margin-bottom:12px;display:flex}.quiz-type-badge{background:var(--warning-bg);color:var(--warning);border:1px solid var(--warning);border-radius:4px;padding:2px 8px;font-size:11px;font-weight:600}.quiz-progress{color:var(--text-muted);font-size:12px}.quiz-q{margin-bottom:12px;font-size:15px;font-weight:500;line-height:1.5}.quiz-opts{flex-direction:column;gap:7px;display:flex}.quiz-opt{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface2);cursor:pointer;text-align:left;color:var(--text);padding:10px 14px;font-family:inherit;font-size:13px;line-height:1.5;transition:all .15s}.quiz-opt:hover:not(:disabled){background:var(--surface);border-color:var(--border-strong)}.quiz-opt.correct{background:var(--success-bg);border-color:var(--success);color:var(--success)}.quiz-opt.wrong{background:var(--danger-bg);border-color:var(--danger);color:var(--danger)}.quiz-fill{border:1px solid var(--border-strong);border-radius:var(--radius);background:var(--surface);width:100%;height:44px;color:var(--text);outline:none;margin-bottom:8px;padding:0 14px;font-family:inherit;font-size:15px}.quiz-fill:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-bg)}.quiz-feedback{border-radius:var(--radius);margin-top:10px;padding:8px 12px;font-size:13px;display:none}.quiz-feedback.show{display:block}.quiz-feedback.correct{background:var(--success-bg);color:var(--success);border:1px solid var(--success)}.quiz-feedback.wrong{background:var(--danger-bg);color:var(--danger);border:1px solid var(--danger)}.score-bar{flex-wrap:wrap;gap:16px;margin-bottom:12px;display:flex}.score-item{color:var(--text-sec);font-size:13px}.score-item span{color:var(--text);font-weight:600}.sc-row{background:var(--surface2);color:var(--text);border-radius:8px;justify-content:space-between;align-items:center;padding:7px 12px;font-size:13px;display:flex}.sc-key{background:var(--surface);color:var(--text);border:1px solid var(--border-strong);box-shadow:0 1px 0 var(--border-strong);border-radius:5px;padding:2px 9px;font-family:Courier New,monospace;font-size:12px}.feat-row{background:var(--surface2);color:var(--text);border-radius:8px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;padding:7px 12px;font-size:13px;display:flex}.feat-tag{color:var(--text-muted);text-align:right;flex-shrink:0;font-size:11px}.progress-bar{background:var(--border);border-radius:3px;width:100%;height:6px;margin-bottom:12px;overflow:hidden}.progress-fill{background:var(--accent);border-radius:3px;height:100%;transition:width .3s}.export-box{background:var(--surface);border:1px solid var(--border);border-radius:12px;margin-bottom:1rem;padding:1rem 1.25rem}.export-box h3{align-items:center;gap:6px;margin-bottom:5px;font-size:14px;font-weight:500;display:flex}.export-box p{color:var(--text-sec);margin-bottom:10px;font-size:12px;line-height:1.6}.export-btns{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.steps{margin-top:8px;display:none}.steps ol{color:var(--text-sec);padding-left:16px;font-size:12px;line-height:2}.toggle-link{color:var(--accent);cursor:pointer;background:0 0;border:none;padding:4px 0 0;font-family:inherit;font-size:12px}.script-box{background:var(--surface2);border:1px solid var(--border);border-radius:var(--radius);color:var(--text-sec);white-space:pre;-webkit-user-select:all;user-select:all;max-height:160px;margin-top:8px;padding:10px;font-family:Courier New,monospace;font-size:11px;display:none;overflow-y:auto}body.fs-small{font-size:13px}body.fs-medium{font-size:15px}body.fs-large{font-size:17px}.flashcard.swipe-right{box-shadow:0 0 0 3px var(--success)}.flashcard.swipe-left{box-shadow:0 0 0 3px var(--danger)}#pwaBanner{background:linear-gradient(135deg, var(--accent-bg), var(--surface));border:1px solid var(--accent-border);border-radius:12px;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:12px;padding:12px 14px;display:none}.hero{--g1:#6e78e8;--g2:#3f48b8;color:#fff;background:linear-gradient(135deg, var(--g1) 0%, var(--g2) 100%);box-shadow:var(--shadow-md);border-radius:20px;margin-bottom:14px;padding:18px 20px;position:relative;overflow:hidden}.hero:after{content:"";pointer-events:none;background:#ffffff14;border-radius:50%;width:180px;height:180px;position:absolute;top:-70px;right:-60px}.hero.indigo{--g1:#6e78e8;--g2:#3f48b8}.hero.sunset{--g1:#7c9bea;--g2:#4d62c9}.hero.ocean{--g1:#56b4da;--g2:#3e6fcb}.hero.emerald{--g1:#4dbfb0;--g2:#2b8a93}.hero.violet{--g1:#9a8cf0;--g2:#5f55cf}.hero.ember{--g1:#5cc2d9;--g2:#3b7fc4}@media (prefers-color-scheme:dark){:root:not([data-theme=light]) .hero.indigo{--g1:#4a53b8;--g2:#252a6b}:root:not([data-theme=light]) .hero.sunset{--g1:#3e5aa8;--g2:#1f2e6e}:root:not([data-theme=light]) .hero.ocean{--g1:#22708a;--g2:#1e3a7a}:root:not([data-theme=light]) .hero.emerald{--g1:#1f7a72;--g2:#11444f}:root:not([data-theme=light]) .hero.violet{--g1:#5a4fa8;--g2:#2b2670}:root:not([data-theme=light]) .hero.ember{--g1:#227a8c;--g2:#1c3f78}}:root[data-theme=dark] .hero.indigo{--g1:#4a53b8;--g2:#252a6b}:root[data-theme=dark] .hero.sunset{--g1:#3e5aa8;--g2:#1f2e6e}:root[data-theme=dark] .hero.ocean{--g1:#22708a;--g2:#1e3a7a}:root[data-theme=dark] .hero.emerald{--g1:#1f7a72;--g2:#11444f}:root[data-theme=dark] .hero.violet{--g1:#5a4fa8;--g2:#2b2670}:root[data-theme=dark] .hero.ember{--g1:#227a8c;--g2:#1c3f78}.hero .overline{letter-spacing:.08em;text-transform:uppercase;opacity:.85;font-size:11px;font-weight:700}.hero .big{margin:4px 0;font-size:28px;font-weight:800;line-height:1.15}.hero .muted{opacity:.85;font-size:13.5px;line-height:1.5}.hero .glass{background:#ffffff2e;border:1px solid #ffffff40;border-radius:12px;padding:8px 12px}.hero .btn{color:#1b1f2b;background:#fffffff2;border-color:#0000}.hero .btn:hover{background:#fff}.hero .btn.ghost{color:#fff;background:#ffffff29;border-color:#ffffff59}.hero-row{z-index:1;justify-content:space-between;align-items:center;gap:12px;display:flex;position:relative}.hero-stats{z-index:1;flex-wrap:wrap;gap:8px;margin-top:12px;display:flex;position:relative}.panel{background:var(--surface);border:1px solid var(--border);border-radius:16px;margin-bottom:12px;padding:14px 16px}.panel-title{color:var(--text);justify-content:space-between;align-items:center;gap:8px;margin-bottom:10px;font-size:14.5px;font-weight:700;display:flex}.panel-sub{color:var(--text-muted);font-size:12.5px;line-height:1.5}.chip{border:1px solid var(--border);background:var(--surface2);color:var(--text);cursor:pointer;border-radius:999px;align-items:center;gap:4px;padding:3px 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var(--border);background:var(--surface2);width:100%;min-height:140px;color:var(--text);font:inherit;border-radius:12px;outline:none;padding:12px 14px;font-size:15px;line-height:1.6;transition:border-color .15s,box-shadow .15s}.fb-text:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}.fb-text::placeholder{color:var(--text-muted)}.fb-meter{color:var(--text-muted);flex-wrap:wrap;align-items:center;gap:14px;margin-top:8px;font-size:12px;display:flex}.fb-meter span{align-items:center;gap:4px;transition:color .2s;display:inline-flex}.fb-meter span.ok{color:var(--success)}.fb-count{font-variant-numeric:tabular-nums;margin-left:auto}.fb-count.over{color:var(--danger)}.fb-problem{background:var(--warning-bg);color:var(--warning);border-radius:10px;align-items:flex-start;gap:8px;margin-top:10px;padding:9px 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