html{background:#f1f4f5;min-height:100%}body,html{min-width:320px}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:Inter,PingFang SC,Microsoft YaHei,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;margin:0;min-height:100vh}::selection{background:#f5c7bb;color:#111}:root{--ink:#202529;--muted:#687178;--line:#dce1e4;--panel:#fff;--canvas:#f1f4f5;--accent:#ed5a3a;--accent-dark:#c84126;--teal:#15766e;--teal-soft:#dff3ef}*{box-sizing:border-box}button,input,textarea{font:inherit}button{cursor:pointer}.api-key-screen,.app-shell{background:#f1f4f5;background:var(--canvas);color:#202529;color:var(--ink);min-height:100vh;min-width:320px}.api-key-brand{align-items:center;background:#fff;border-bottom:1px solid #dce1e4;border-bottom:1px solid var(--line);display:flex;gap:11px;min-height:68px;padding:0 28px}.api-key-brand strong{font-size:.95rem}.api-key-main{margin:0 auto;padding:88px 0 72px;width:min(calc(100% - 40px),460px)}.api-key-symbol{background:#fff;border:1px solid #cfd7da;border-radius:7px;color:#15766e;color:var(--teal);display:grid;height:52px;margin-bottom:24px;place-items:center;width:52px}.api-key-main h1{font-size:2.25rem;letter-spacing:0;line-height:1.2;margin:0}.api-key-intro{color:#687178;color:var(--muted);font-size:.95rem;line-height:1.7;margin:14px 0 0;max-width:410px}.api-key-form{margin-top:32px}.api-key-form>label{color:#39444a;display:block;font-size:.78rem;font-weight:750;margin-bottom:9px}.api-key-input-wrap{align-items:center;background:#fff;border:1px solid #cbd3d7;border-radius:7px;color:#687178;color:var(--muted);display:grid;grid-template-columns:40px minmax(0,1fr) 42px;min-height:50px;overflow:hidden;transition:border-color .14s ease,box-shadow .14s ease}.api-key-input-wrap:focus-within{border-color:#15766e;border-color:var(--teal);box-shadow:0 0 0 3px #15766e1f}.api-key-input-wrap>svg{justify-self:end}.api-key-input-wrap input{background:#0000;border:0;color:#202529;color:var(--ink);font-family:SFMono-Regular,Consolas,Liberation Mono,monospace;font-size:.86rem;height:48px;min-width:0;outline:none;padding:0 12px;width:100%}.api-key-input-wrap button{background:#0000;border:0;border-radius:5px;color:#687178;color:var(--muted);display:grid;height:34px;padding:0;place-items:center;width:34px}.api-key-input-wrap button:focus-visible,.api-key-input-wrap button:hover{background:#dff3ef;background:var(--teal-soft);color:#15766e;color:var(--teal);outline:none}.api-key-privacy{align-items:flex-start;color:#687178;color:var(--muted);display:flex;font-size:.75rem;gap:8px;line-height:1.55;margin:12px 0 22px}.api-key-privacy svg{color:#15766e;color:var(--teal);flex:0 0 auto;margin-top:1px}.api-key-submit{align-items:center;background:#ed5a3a;background:var(--accent);border:1px solid #ed5a3a;border:1px solid var(--accent);border-radius:7px;color:#fff;display:flex;font-weight:750;gap:9px;justify-content:center;min-height:48px;width:100%}.api-key-submit:focus-visible:not(:disabled),.api-key-submit:hover:not(:disabled){background:#c84126;background:var(--accent-dark);border-color:#c84126;border-color:var(--accent-dark);outline:none}.api-key-submit:disabled{cursor:not-allowed;opacity:.46}.api-key-link{align-items:center;color:#15766e;color:var(--teal);display:inline-flex;font-size:.78rem;font-weight:700;gap:6px;margin-top:20px;text-decoration:none}.api-key-link:focus-visible,.api-key-link:hover{color:#0e5c56;outline:none;text-decoration:underline}.topbar{background:#fffffff7;border-bottom:1px solid #dce1e4;border-bottom:1px solid var(--line);justify-content:space-between;min-height:68px;padding:0 28px;position:relative;z-index:2}.brand,.topbar{align-items:center;display:flex}.brand{gap:11px}.brand-mark{background:#202529;background:var(--ink);border-radius:7px;color:#fff;display:grid;font-family:Georgia,Times New Roman,serif;font-size:1.15rem;font-weight:700;height:36px;place-items:center;width:36px}.brand div{grid-gap:1px;display:grid;gap:1px}.brand strong{font-size:.95rem}.brand div span{color:#687178;color:var(--muted);font-size:.72rem}.api-key-change{align-items:center;background:#fff;border:1px solid #d2d9dc;border-radius:6px;color:#526067;display:inline-flex;font-size:.78rem;font-weight:700;gap:7px;min-height:36px;padding:0 12px}.api-key-change:focus-visible,.api-key-change:hover{border-color:#15766e;border-color:var(--teal);color:#15766e;color:var(--teal);outline:none}.header-status{align-items:center;color:#687178;color:var(--muted);display:flex;font-size:.82rem;gap:8px}.header-status strong{font-feature-settings:"tnum";color:#202529;color:var(--ink);font-variant-numeric:tabular-nums}.status-dot{background:#22a06b;border-radius:50%;box-shadow:0 0 0 3px #22a06b1f;display:inline-block;height:7px;width:7px}.status-dot.idle{background:#9aa3a8;box-shadow:0 0 0 3px #6871781a}.workspace{display:grid;grid-template-columns:minmax(320px,370px) minmax(0,1fr);min-height:calc(100vh - 68px);transition:grid-template-columns .18s ease}.workspace.sidebar-collapsed{grid-template-columns:64px minmax(0,1fr)}.control-panel{background:#fff;background:var(--panel);border-right:1px solid #dce1e4;border-right:1px solid var(--line);box-shadow:10px 0 28px rgba(36,45,50,.035);min-width:0;padding:30px 28px;position:relative;transition:padding .18s ease;z-index:1}.control-panel.is-collapsed{padding:18px 12px}.sidebar-menu-button{background:#fff;border:1px solid #d2d9dc;border-radius:6px;color:#586268;display:grid;height:36px;padding:0;place-items:center;position:absolute;right:16px;top:20px;width:36px;z-index:2}.sidebar-menu-button:focus-visible,.sidebar-menu-button:hover{border-color:#15766e;border-color:var(--teal);color:#15766e;color:var(--teal);outline:none}.control-panel.is-collapsed .sidebar-menu-button{margin:0 auto;position:-webkit-sticky;position:sticky;top:18px}.panel-heading{margin-bottom:28px;padding-right:36px}.section-kicker{color:#c84126;color:var(--accent-dark);font-size:.7rem;font-weight:800;letter-spacing:.08em;margin:0 0 8px}.panel-heading h1{font-size:1.42rem;letter-spacing:0;line-height:1.25;margin:0 0 8px}.panel-heading>p:last-child{color:#687178;color:var(--muted);font-size:.84rem;line-height:1.6;margin:0}.control-section{border-top:1px solid #e7eaec;padding:20px 0}.label-row{align-items:center;display:flex;gap:16px;justify-content:space-between;margin-bottom:11px}.label-row label,.label-row>span:first-child{font-size:.88rem;font-weight:750}.label-row output,.label-row>span:last-child{color:#15766e;color:var(--teal);font-size:.78rem;font-weight:700}.custom-topic,textarea{background:#fbfcfc;border:1px solid #cfd6da;border-radius:6px;color:#202529;color:var(--ink);outline:none;transition:border-color .15s ease,box-shadow .15s ease;width:100%}textarea{font-family:SFMono-Regular,Consolas,Liberation Mono,monospace;font-size:.86rem;line-height:1.65;min-height:128px;padding:12px 13px;resize:vertical}.custom-topic:focus,textarea:focus{border-color:#15766e;border-color:var(--teal);box-shadow:0 0 0 3px #15766e1a}.field-hint{color:#828a90;font-size:.72rem;line-height:1.5;margin:8px 0 0}.topic-grid{grid-gap:7px;display:grid;gap:7px;grid-template-columns:repeat(3,minmax(0,1fr))}.topic-option{background:#fff;border:1px solid #d7dde0;border-radius:6px;color:#505960;font-size:.8rem;min-height:36px;padding:6px 7px;transition:border-color .15s ease,color .15s ease,background .15s ease}.topic-option:hover{border-color:#9ca6ac;color:#202529;color:var(--ink)}.topic-option.selected{background:#202529;background:var(--ink);border-color:#202529;border-color:var(--ink);color:#fff;font-weight:700}.custom-topic{font-size:.82rem;height:40px;margin-top:9px;padding:0 12px}.length-control input[type=range]{-webkit-appearance:none;appearance:none;background:linear-gradient(to right,#ed5a3a 0,#ed5a3a var(--range-progress),#dfe4e6 var(--range-progress),#dfe4e6 100%);background:linear-gradient(to right,var(--accent) 0,var(--accent) var(--range-progress),#dfe4e6 var(--range-progress),#dfe4e6 100%);border-radius:999px;height:4px;margin:8px 0 0;outline:none;width:100%}.length-control input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;background:#ed5a3a;background:var(--accent);border:3px solid #fff;border-radius:50%;box-shadow:0 0 0 1px #ed5a3a,0 2px 5px #2025292e;box-shadow:0 0 0 1px var(--accent),0 2px 5px #2025292e;height:18px;width:18px}.length-control input[type=range]::-moz-range-thumb{background:#ed5a3a;background:var(--accent);border:3px solid #fff;border-radius:50%;box-shadow:0 0 0 1px #ed5a3a,0 2px 5px #2025292e;box-shadow:0 0 0 1px var(--accent),0 2px 5px #2025292e;height:14px;width:14px}.range-labels{color:#8a9297;font-size:.68rem;margin-top:10px}.generate-button,.range-labels{display:flex;justify-content:space-between}.generate-button{align-items:center;background:#ed5a3a;background:var(--accent);border:0;border-radius:6px;box-shadow:0 8px 20px #ed5a3a2e;color:#fff;font-weight:750;margin-top:8px;min-height:48px;padding:0 16px;transition:background .15s ease,transform .15s ease;width:100%}.generate-button:hover:not(:disabled){background:#c84126;background:var(--accent-dark);transform:translateY(-1px)}.generate-button:disabled{box-shadow:none;cursor:not-allowed;opacity:.52}.generate-button span:last-child{font-size:1.18rem}.passage-error{grid-gap:3px;background:#fff4f1;border-left:3px solid #c63c2b;color:#9c2f22;display:grid;font-size:.8rem;gap:3px;line-height:1.5;margin-bottom:28px;padding:11px 13px}.passage-error strong{color:#76251c}.reading-workspace{min-width:0;overflow:hidden;padding:0 clamp(32px,6vw,92px) 64px}.reading-toolbar{align-items:center;background:#f8fafa;border-bottom:1px solid #dce1e4;border-bottom:1px solid var(--line);color:#687178;color:var(--muted);display:flex;font-size:.76rem;justify-content:space-between;margin:0 calc(clamp(32px, 6vw, 92px)*-1);min-height:54px;padding:0 clamp(32px,6vw,92px)}.live-label,.reading-toolbar>div{align-items:center;display:flex;gap:8px}.live-label{color:#3f494f;font-weight:700}.toolbar-divider{background:#ced5d8;height:14px;margin:0 3px;width:1px}.level-label{background:#fff;border:1px solid #ccd3d6;border-radius:999px;color:#4d575d;font-weight:700;padding:5px 9px}.empty-passage{color:#98a1a6;display:grid;justify-items:center;min-height:calc(100vh - 122px);place-content:center;text-align:center}.empty-passage>span{color:#b1b9bd;font-family:Georgia,Times New Roman,serif;font-size:2.7rem;line-height:1}.empty-passage h2{font-size:.9rem;font-weight:650;letter-spacing:0;margin:13px 0 0}.passage{margin:0 auto;padding-top:clamp(42px,7vh,76px);position:relative;transition:opacity .18s ease;width:min(100%,900px)}.passage.is-loading>:not(.loading-state){opacity:.12}.loading-state{grid-gap:10px;display:grid;gap:10px;left:50%;position:absolute;top:46%;transform:translate(-50%,-50%);width:min(80%,520px);z-index:2}.loading-line{animation:loading-pulse .85s ease-in-out infinite alternate;background:#bfc8cc;border-radius:999px;height:9px}.loading-line.long{width:100%}.loading-line.medium{width:78%}.loading-line.short{width:52%}.article-heading{border-bottom:1px solid #d7dddf;padding-bottom:28px}.article-heading>p{color:#c84126;color:var(--accent-dark);font-size:.72rem;font-weight:800;letter-spacing:.08em;margin:0 0 12px;text-transform:uppercase}.article-heading h2{color:#171b1e;font-family:Georgia,Times New Roman,serif;font-size:clamp(2.1rem,4vw,3.15rem);font-weight:600;letter-spacing:0;line-height:1.08;margin:0}.article-meta{color:#747d82;display:flex;flex-wrap:wrap;font-size:.76rem;gap:8px 20px;margin-top:19px}.article-meta span:not(:first-child):before{background:#9da5aa;border-radius:50%;content:"";display:inline-block;height:3px;margin:0 9px 2px 0;width:3px}.passage-copy{padding:30px 0 18px;position:relative}.passage-copy p{color:#293035;font-family:Georgia,Times New Roman,serif;font-size:1.08rem;line-height:1.88;margin:0 0 24px}.passage-copy p:first-child:first-letter{color:#202529;color:var(--ink);float:left;font-size:3.35rem;font-weight:700;line-height:.72;margin:8px 8px 0 0}.lookup-word{border-radius:2px;cursor:pointer;transition:color .12s ease,background .12s ease;-webkit-user-select:text;user-select:text}.lookup-word:hover{background:#e7f3f1;color:#104b46}.word-highlight{background:#fff0a6;border:0;border-bottom:2px solid #d3a514;border-radius:3px 3px 1px 1px;color:#574200;display:inline;font-family:inherit;font-size:inherit;font-weight:700;line-height:inherit;margin:0;padding:1px 2px;-webkit-user-select:text;user-select:text}.word-highlight:focus-visible,.word-highlight:hover{background:#f3d15b;color:#3f3000;outline:none}.lookup-word.word-checked,.word-highlight.word-checked{background:#dff3e7;border-bottom:2px solid #31865a;border-radius:3px 3px 1px 1px;color:#165c39;font-weight:700}.lookup-word.word-checked:hover,.word-highlight.word-checked:focus-visible,.word-highlight.word-checked:hover{background:#267449;color:#fff}.passage-sentence{border-radius:2px;transition:color .12s ease,background .12s ease}.passage-sentence.is-selected{background:#e2f2ef;box-decoration-break:clone;-webkit-box-decoration-break:clone;box-shadow:0 0 0 3px #e2f2ef;color:#173d3b}.sentence-detective-float{align-items:center;background:#ed5a3a;background:var(--accent);border:0;border-radius:5px;box-shadow:0 8px 22px #20252933;color:#fff;display:inline-flex;font-size:.8rem;font-weight:750;gap:7px;justify-content:center;min-height:40px;padding:0 13px;position:absolute;width:128px;z-index:15}.sentence-detective-float:focus-visible,.sentence-detective-float:hover{background:#c84126;background:var(--accent-dark);outline:none}.vocabulary-footer{border-top:1px solid #d7dddf;margin-top:18px;padding:24px 0 36px}.footer-heading{align-items:baseline;display:flex;gap:16px;justify-content:space-between;margin-bottom:14px}.footer-heading strong{font-size:.88rem}.footer-heading span{color:#687178;color:var(--muted);font-size:.72rem}.word-chips{display:flex;flex-wrap:wrap;gap:8px}.word-chips>span{align-items:center;background:#f8fbfa;border:1px solid #cbd5d5;border-radius:6px;color:#1d514d;display:inline-flex;font-family:SFMono-Regular,Consolas,monospace;font-size:.78rem;font-weight:700;gap:7px;min-height:34px;padding:5px 9px 5px 6px}.word-chips small{background:#15766e;background:var(--teal);border-radius:4px;color:#fff;display:grid;font-size:.61rem;height:21px;place-items:center;width:21px}.quiz-backdrop{background:#191f2257;border:0;cursor:default;inset:0;padding:0;position:fixed;width:100%;z-index:20}.word-quiz-drawer{background:#fff;box-shadow:-16px 0 36px #2025292e;color:#202529;color:var(--ink);height:100dvh;overflow-y:auto;position:fixed;right:0;top:0;width:min(440px,100vw);z-index:21}.quiz-header{align-items:flex-start;background:#fffffffa;border-bottom:1px solid #dce1e4;border-bottom:1px solid var(--line);display:flex;gap:24px;justify-content:space-between;min-height:112px;padding:24px 26px 20px;position:-webkit-sticky;position:sticky;top:0;z-index:1}.quiz-header p{color:#c84126;color:var(--accent-dark);font-size:.68rem;font-weight:800;letter-spacing:.08em;margin:0 0 5px}.quiz-header h2{font-family:Georgia,Times New Roman,serif;font-size:1.8rem;letter-spacing:0;line-height:1.1;margin:0}.quiz-title-row{align-items:center;display:flex;gap:9px}.context-pronunciation-button,.pronunciation-button{background:#f6fbfa;border:1px solid #c8d5d4;border-radius:50%;color:#15766e;color:var(--teal);display:grid;height:34px;padding:0;place-items:center;width:34px}.pronunciation-button{flex:0 0 34px}.context-pronunciation-button{position:absolute;right:10px;top:11px}.context-pronunciation-button:focus-visible,.context-pronunciation-button:hover:not(:disabled),.pronunciation-button:focus-visible,.pronunciation-button:hover:not(:disabled){background:#15766e;background:var(--teal);border-color:#15766e;border-color:var(--teal);color:#fff;outline:none}.context-pronunciation-button:disabled,.pronunciation-button:disabled{cursor:not-allowed;opacity:.4}.quiz-close{background:#fff;border:1px solid #d5dbde;border-radius:6px;color:#4e585e;display:grid;flex:0 0 36px;font-size:1.5rem;height:36px;line-height:1;padding:0 0 3px;place-items:center;width:36px}.quiz-close:focus-visible,.quiz-close:hover{border-color:#202529;border-color:var(--ink);color:#202529;color:var(--ink);outline:none}.quiz-body{padding:26px}.quiz-sentences{grid-gap:18px;display:grid;gap:18px;margin-bottom:28px}.quiz-sentence-label{color:#717b80;font-size:.68rem;font-weight:800;margin:0 0 7px}.quiz-context{position:relative}.quiz-body blockquote{background:#f7f9f9;border-left:3px solid #15766e;border-left:3px solid var(--teal);color:#4e585e;font-family:Georgia,Times New Roman,serif;font-size:.96rem;line-height:1.7;margin:0;padding:13px 54px 13px 16px}.quiz-body blockquote strong{background:#dff3ef;background:var(--teal-soft);color:#104b46}.quiz-loading{grid-gap:10px;color:#687178;color:var(--muted);display:grid;font-size:.82rem;gap:10px}.quiz-loading i{animation:loading-pulse .85s ease-in-out infinite alternate;background:#e8edef;border-radius:6px;display:block;height:46px}.quiz-error{background:#fff4f1;border-left:3px solid #c63c2b;color:#87291e;padding:13px 15px}.quiz-error p{font-size:.82rem;line-height:1.55;margin:0 0 12px}.quiz-error button{background:#fff;border:1px solid #c63c2b;border-radius:5px;color:#87291e;font-size:.78rem;font-weight:700;padding:7px 11px}.quiz-prompt{font-size:1rem;font-weight:750;line-height:1.55;margin:0 0 15px}.quiz-options{grid-gap:10px;display:grid;gap:10px}.quiz-option{grid-gap:11px;align-items:center;background:#fff;border:1px solid #cfd6da;border-radius:6px;color:#343c41;display:grid;gap:11px;grid-template-columns:30px minmax(0,1fr);min-height:58px;padding:10px 12px;text-align:left;width:100%}.quiz-option>span{background:#edf1f2;border-radius:5px;color:#59646a;display:grid;font-size:.75rem;font-weight:800;height:30px;place-items:center;width:30px}.quiz-option strong{font-size:.86rem;font-weight:650;line-height:1.5;min-width:0}.quiz-option:focus-visible,.quiz-option:hover:not(:disabled){border-color:#15766e;border-color:var(--teal);box-shadow:0 0 0 3px #15766e14;outline:none}.quiz-option:disabled{cursor:default}.quiz-option.correct{background:#eef8f3;border-color:#25845d;color:#18593f}.quiz-option.correct>span{background:#25845d;color:#fff}.quiz-option.incorrect{background:#fff3f0;border-color:#cb5747;color:#8d3025}.quiz-option.incorrect>span{background:#cb5747;color:#fff}.quiz-reveal{border-top:1px solid #dce1e4;border-top:1px solid var(--line);margin-top:22px;padding-top:20px}.quiz-result{border-left:3px solid;font-size:.84rem;font-weight:750;margin:0 0 24px;padding:10px 12px}.quiz-result.correct{background:#eef8f3;color:#176744}.quiz-result.incorrect{background:#fff3f0;color:#9a3327}.quiz-reveal section+section{border-top:1px solid #e5e9eb;margin-top:25px;padding-top:22px}.quiz-reveal h3{font-size:.8rem;margin:0 0 9px}.quiz-reveal section p{color:#4b555b;font-size:.83rem;line-height:1.75;margin:0;white-space:pre-wrap}.detective-backdrop{background:#191f2257;border:0;cursor:default;inset:0;padding:0;position:fixed;width:100%;z-index:30}.sentence-detective-drawer{background:#fff;box-shadow:-16px 0 36px #2025292e;color:#202529;color:var(--ink);height:100dvh;overflow-y:auto;position:fixed;right:0;top:0;width:min(520px,100vw);z-index:31}.detective-header{align-items:flex-start;background:#fffffffa;border-bottom:1px solid #dce1e4;border-bottom:1px solid var(--line);display:flex;gap:24px;justify-content:space-between;min-height:104px;padding:23px 26px 19px;position:-webkit-sticky;position:sticky;top:0;z-index:1}.detective-header p{color:#c84126;color:var(--accent-dark);font-size:.68rem;font-weight:800;letter-spacing:.08em;margin:0 0 5px}.detective-header h2{font-size:1.45rem;letter-spacing:0;line-height:1.15;margin:0}.detective-close{background:#fff;border:1px solid #d5dbde;border-radius:6px;color:#4e585e;display:grid;flex:0 0 36px;height:36px;padding:0;place-items:center;width:36px}.detective-close:focus-visible,.detective-close:hover{border-color:#202529;border-color:var(--ink);color:#202529;color:var(--ink);outline:none}.detective-body{padding:24px 26px 34px}.detective-progress{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));isolation:isolate;list-style:none;margin:0 0 30px;padding:0;position:relative}.detective-progress li{grid-gap:6px;color:#8a9398;display:grid;gap:6px;justify-items:center;position:relative}.detective-progress li:not(:last-child):after{background:#d8dee1;content:"";height:1px;left:58%;position:absolute;top:14px;width:84%;z-index:0}.detective-progress li>span{background:#fff;border:1px solid #ccd4d7;border-radius:50%;display:grid;font-size:.69rem;font-weight:800;height:29px;place-items:center;position:relative;width:29px;z-index:1}.detective-progress strong{font-size:.62rem}.detective-progress li.current{color:#c84126;color:var(--accent-dark)}.detective-progress li.current>span{background:#ed5a3a;background:var(--accent);border-color:#ed5a3a;border-color:var(--accent);color:#fff}.detective-progress li.completed{color:#15766e;color:var(--teal)}.detective-progress li.completed>span{background:#15766e;background:var(--teal);border-color:#15766e;border-color:var(--teal);color:#fff}.detective-step-heading{margin-bottom:20px}.detective-step-heading>p{color:#c84126;color:var(--accent-dark);font-size:.69rem;font-weight:800;margin:0 0 7px}.detective-step-heading h3{font-size:1.08rem;letter-spacing:0;line-height:1.4;margin:0 0 7px}.detective-step-heading>span{color:#687178;color:var(--muted);font-size:.78rem;line-height:1.55}.detective-sentence{background:#f8fafa;border:1px solid #d5dcdf;border-left:3px solid #202529;border-left:3px solid var(--ink);border-radius:0 6px 6px 0;color:#30373b;font-family:Georgia,Times New Roman,serif;font-size:1rem;line-height:2;padding:17px 16px}.sentence-token{background:#0000;border:0;border-radius:2px;color:inherit;display:inline;font-family:inherit;font-size:inherit;line-height:inherit;margin:0;padding:1px 0}.sentence-token:focus-visible,.sentence-token:hover:not(:disabled){background:#dff3ef;color:#104b46;outline:none}.sentence-token.selected,.sentence-token.selected:hover{background:#ffd8cd;box-shadow:inset 0 -2px 0 #ed5a3a;box-shadow:inset 0 -2px 0 var(--accent);color:#782716}.sentence-token:disabled{cursor:default;opacity:1}.detective-selection-meta{align-items:center;border-bottom:1px solid #e3e7e9;color:#737d82;display:flex;font-size:.72rem;gap:16px;justify-content:space-between;min-height:42px}.detective-selection-meta button{background:#0000;border:0;color:#687278;display:grid;height:32px;padding:0;place-items:center;width:32px}.detective-selection-meta button:focus-visible,.detective-selection-meta button:hover:not(:disabled){color:#c84126;color:var(--accent-dark);outline:none}.detective-selection-meta button:disabled{cursor:not-allowed;opacity:.35}.detective-feedback{border-left:3px solid;font-size:.8rem;line-height:1.55;margin-top:18px;padding:11px 13px}.detective-feedback.correct{background:#eef8f3;color:#176744}.detective-feedback.incorrect{background:#fff3f0;color:#9a3327}.detective-feedback.error{background:#fff7e8;color:#8a4b12}.detective-actions{display:flex;justify-content:flex-end;margin-top:22px}.detective-complete button,.detective-primary{align-items:center;background:#ed5a3a;background:var(--accent);border:0;border-radius:5px;color:#fff;display:inline-flex;font-size:.82rem;font-weight:750;gap:8px;justify-content:center;min-height:42px;min-width:132px;padding:0 15px}.detective-complete button:focus-visible,.detective-complete button:hover,.detective-primary:focus-visible,.detective-primary:hover:not(:disabled){background:#c84126;background:var(--accent-dark);outline:none}.detective-primary:disabled{cursor:wait;opacity:.62}.detective-complete{align-content:start;color:#15766e;color:var(--teal);display:grid;justify-items:center;min-height:360px;padding-top:24px;text-align:center}.detective-complete h3{color:#202529;color:var(--ink);font-size:1.12rem;letter-spacing:0;margin:15px 0 7px}.detective-complete p{color:#687178;color:var(--muted);font-size:.8rem;margin:0 0 22px}.detective-summary{border-bottom:1px solid #dce1e4;border-bottom:1px solid var(--line);border-top:1px solid #dce1e4;border-top:1px solid var(--line);margin:2px 0 24px;padding:18px 0;text-align:left;width:100%}.detective-summary h4{color:#202529;color:var(--ink);font-size:.86rem;letter-spacing:0;margin:0 0 10px}.detective-summary p{color:#3f4b51;font-size:.84rem;line-height:1.75;margin:0;white-space:pre-line}.detective-summary-status{animation:loading-pulse .9s ease-in-out infinite alternate}.detective-summary-error p{color:#8a4b12}.detective-summary-error button{margin-top:14px;min-height:36px;min-width:96px}@keyframes loading-pulse{0%{opacity:.42}to{opacity:.9}}@media (max-width:900px){.workspace,.workspace.sidebar-collapsed{grid-template-columns:1fr}.control-panel{border-bottom:1px solid #dce1e4;border-bottom:1px solid var(--line);border-right:0;box-shadow:0 10px 24px rgba(36,45,50,.035)}.control-panel.is-collapsed{min-height:56px;padding:10px 24px}.control-panel.is-collapsed .sidebar-menu-button{margin:0 0 0 auto;position:static}.reading-toolbar,.reading-workspace{padding-left:24px;padding-right:24px}.reading-toolbar{margin-left:-24px;margin-right:-24px}}@media (max-width:540px){.api-key-brand{min-height:62px;padding:0 18px}.api-key-main{padding:56px 0 48px;width:calc(100% - 36px)}.api-key-main h1{font-size:2rem}.topbar{min-height:62px;padding:0 18px}.brand div span,.header-status{display:none}.control-panel{padding:25px 20px 28px}.topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.reading-toolbar,.reading-workspace{padding-left:20px;padding-right:20px}.reading-toolbar{margin-left:-20px;margin-right:-20px}.article-heading h2{font-size:2rem}.passage-copy p{font-size:1rem}.article-meta span:not(:first-child):before{display:none}.quiz-header{min-height:98px;padding:20px}.quiz-body{padding:22px 20px 32px}.detective-header{min-height:96px;padding:20px}.detective-body{padding:22px 20px 32px}.detective-progress strong{font-size:.56rem}.detective-sentence{font-size:.95rem;padding:15px 13px}}@media (prefers-reduced-motion:reduce){*,:after,:before{animation-duration:.01ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important;transition-duration:.01ms!important}}
/*# sourceMappingURL=main.ac13eec0.css.map*/