:root{--navy:#16354f;--navy-2:#214a69;--ink:#17222d;--muted:#657480;--line:#dfe6eb;--soft:#f4f7f9;--paper:#fff;--green:#2f7b60;--red:#b13d3d;--shadow:0 16px 40px rgba(21,43,60,.08);--radius:16px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#f5f7f9;color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;line-height:1.55}.site-shell{min-height:100vh}.topbar{height:72px;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 max(18px,calc((100% - 1160px)/2));position:sticky;top:0;z-index:50}.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:inherit}.brand-mark{width:38px;height:38px;border-radius:11px;background:var(--navy);color:#fff;display:grid;place-items:center;font-size:19px;box-shadow:0 8px 18px rgba(22,53,79,.16)}.brand strong{display:block;font-size:19px;color:var(--navy);letter-spacing:-.3px}.brand small{display:block;color:#82909b;font-size:11px;margin-top:-2px}.main-nav{display:flex;align-items:center;gap:24px}.main-nav a{font-size:13px;color:#5d6c78;text-decoration:none}.main-nav a:hover{color:var(--navy)}.nav-icon{border:1px solid var(--line);background:#fff;border-radius:9px;padding:8px 10px;color:#435563;cursor:pointer}.hero{max-width:1160px;margin:auto;padding:82px 18px 72px;display:grid;grid-template-columns:1.2fr .8fr;gap:55px;align-items:center}.kicker{font-size:10px;letter-spacing:1.5px;font-weight:850;color:#5d7a91}.hero h1{font-size:clamp(42px,5.4vw,70px);line-height:1.02;letter-spacing:-2.8px;color:var(--navy);margin:11px 0 22px;max-width:760px}.hero p{font-size:18px;color:#61707c;max-width:720px;margin:0}.hero-actions{display:flex;align-items:center;gap:20px;margin-top:28px}.btn{border-radius:9px;border:1px solid transparent;padding:11px 16px;background:#fff;color:#344653;font-weight:750;cursor:pointer;font:inherit;font-size:13px}.btn-primary{background:var(--navy);color:#fff;box-shadow:0 9px 22px rgba(22,53,79,.18)}.btn-primary:hover{background:#204a6a}.btn-soft{background:#eef3f6;border-color:#d9e1e7;color:#314b5d}.btn-plain{background:transparent;color:#687985}.btn-danger{border-color:#e6cccc;background:#fff;color:var(--red)}.btn-large{padding:14px 20px;font-size:14px}.btn.small{padding:8px 11px;font-size:12px}.text-link{font-size:13px;color:var(--navy);text-decoration:none;font-weight:700}.trust-row{display:flex;flex-wrap:wrap;gap:18px;margin-top:26px;color:#74838f;font-size:12px}.hero-visual{height:365px;position:relative;display:grid;place-items:center}.paper-card{width:min(340px,85%);height:270px;background:#fff;border:1px solid #dfe6eb;border-radius:15px;padding:24px;position:relative;box-shadow:var(--shadow);transform:rotate(2deg)}.paper-back{position:absolute;transform:rotate(-7deg) translate(-22px,12px);opacity:.65;background:#edf2f5;box-shadow:none}.paper-top{display:flex;justify-content:space-between;color:#688091;font-weight:800;font-size:9px;letter-spacing:1px;border-bottom:1px solid #e9edef;padding-bottom:12px;margin-bottom:17px}.paper-line{height:8px;background:#dfe7eb;border-radius:100px;margin:12px 0}.paper-line.full{width:100%}.paper-line.wide{width:92%}.paper-line.medium{width:68%}.paper-line.short{width:40%}.keyboard{display:flex;gap:4px;margin-top:20px;flex-wrap:wrap}.keyboard div{width:22px;height:17px;border:1px solid #cfd9df;border-radius:4px;background:#f4f7f8}.speed-badge{position:absolute;right:-24px;bottom:-24px;width:92px;height:92px;border-radius:50%;background:var(--navy);color:#fff;display:grid;place-items:center;align-content:center;box-shadow:0 15px 32px rgba(22,53,79,.22)}.speed-badge strong{font-size:26px;line-height:1}.speed-badge span{font-size:10px;opacity:.75}.feature-strip{max-width:1160px;margin:0 auto 22px;padding:0 18px;display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.feature-strip article{background:#fff;border:1px solid var(--line);border-radius:13px;padding:17px 19px;display:flex;gap:13px;align-items:center}.feature-icon{width:38px;height:38px;border-radius:9px;background:#edf3f6;display:grid;place-items:center;color:var(--navy);font-weight:900}.feature-strip strong,.feature-strip span{display:block}.feature-strip strong{font-size:13px;color:var(--navy)}.feature-strip span{font-size:11px;color:#7a8892;margin-top:2px}.app-section,.test-wrap,.result-wrap,.content-section,.about-section{max-width:1160px;margin:0 auto;padding-left:18px;padding-right:18px}.app-section{padding-top:76px}.section-heading{display:flex;justify-content:space-between;gap:18px;align-items:flex-end;margin-bottom:22px}.section-heading.compact{align-items:center}.section-heading h2,.test-header h2,.result-top h2{font-size:30px;letter-spacing:-1px;color:var(--navy);margin:5px 0 5px}.section-heading p{margin:0;color:#73808a;font-size:14px}.material-card,.config-card,.test-wrap,.result-wrap,.chart-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.material-card{overflow:hidden}.material-toolbar{display:flex;justify-content:space-between;align-items:center;padding:14px 17px;border-bottom:1px solid #edf0f2;background:#fbfcfd}.source-tabs{display:flex;gap:4px}.source-tab{border:0;background:transparent;color:#71808a;padding:9px 11px;border-radius:8px;cursor:pointer;font-weight:700;font-size:12px}.source-tab.active{background:#e9f0f4;color:var(--navy)}.material-actions{display:flex;gap:5px}.material-meta-row{display:flex;gap:12px;padding:16px 17px 0}.field{display:flex;flex-direction:column;gap:6px;min-width:170px}.field.grow{flex:1}.field label{font-size:11px;color:#677680;font-weight:800}.field input,.field select{font:inherit;font-size:13px;border:1px solid #d8e0e5;border-radius:8px;padding:10px 11px;outline:none;background:#fff;color:#2c3c48}.field input:focus,.field select:focus,textarea:focus{border-color:#6a8598;box-shadow:0 0 0 3px rgba(89,118,140,.11)}.source-view{display:none;padding:16px 17px}.source-view.active{display:block}.source-view textarea{width:100%;height:230px;resize:vertical;border:1px solid #d8e0e5;border-radius:10px;padding:15px;font:15px/1.7 inherit;outline:none;background:#fff;color:#263844}.text-stats{display:flex;gap:18px;color:#7b8892;font-size:11px;margin-top:7px}.drop-zone{min-height:250px;border:1px dashed #bac9d3;background:#fafcfd;border-radius:11px;display:grid;place-items:center;align-content:center;gap:7px;text-align:center;color:#75848e}.drop-icon{width:42px;height:42px;border-radius:11px;background:#e9f0f4;color:var(--navy);display:grid;place-items:center;font-size:21px;margin-bottom:3px}.drop-zone strong{color:#314b5b}.drop-zone small{font-size:10px;color:#95a1aa;margin-top:3px}.config-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:14px}.config-card{padding:19px}.config-title{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:15px}.config-title h3{font-size:18px;color:var(--navy);margin:4px 0 0}.settings-label{font-size:10px;background:#edf2f5;padding:5px 7px;border-radius:7px;color:#6b7b86;font-weight:750}.settings-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.switch-list{display:grid}.switch-row{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:10px 0;border-bottom:1px solid #edf0f2;cursor:pointer}.switch-row:last-child{border:0}.switch-row strong,.switch-row small{display:block}.switch-row strong{font-size:12px;color:#374b59}.switch-row small{font-size:10px;color:#8a97a0;margin-top:1px}.switch-row input{display:none}.switch-row i{width:38px;height:21px;border-radius:100px;background:#d4dde3;position:relative;flex:none;transition:.18s}.switch-row i:after{content:"";position:absolute;width:17px;height:17px;left:2px;top:2px;border-radius:50%;background:#fff;box-shadow:0 1px 3px rgba(0,0,0,.17);transition:.18s}.switch-row input:checked+i{background:var(--navy)}.switch-row input:checked+i:after{transform:translateX(17px)}.mode-presets{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:12px}.preset{display:flex;gap:10px;text-align:left;align-items:center;padding:13px;border:1px solid #e0e6ea;background:#fff;border-radius:12px;cursor:pointer}.preset:hover{border-color:#b7c6d0;transform:translateY(-1px)}.preset>span{width:32px;height:32px;border-radius:8px;background:#edf3f6;display:grid;place-items:center}.preset strong,.preset small{display:block}.preset strong{font-size:12px;color:var(--navy)}.preset small{font-size:10px;color:#7d8991;margin-top:2px}.start-row{margin-top:15px;display:flex;align-items:center;justify-content:space-between;background:#edf3f6;border-radius:12px;padding:15px 17px}.start-row strong,.start-row span{display:block}.start-row strong{color:var(--navy);font-size:13px}.start-row span{font-size:11px;color:#71808c;margin-top:2px}.test-wrap,.result-wrap{margin-top:76px;padding-top:24px;padding-bottom:22px}.test-header,.result-top{display:flex;justify-content:space-between;align-items:center;gap:15px;padding:0 5px 20px}.test-actions{display:flex;gap:7px}.live-metrics{display:grid;grid-template-columns:repeat(5,1fr);gap:9px;margin-bottom:11px}.live-metrics>div{background:#f3f6f8;border-radius:10px;padding:11px 13px}.live-metrics span,.result-grid span,.progress-summary span{display:block;text-transform:uppercase;letter-spacing:.8px;font-size:9px;color:#7b8891;font-weight:800}.live-metrics strong{font-size:20px;color:var(--navy);display:block;margin-top:2px}.test-stage{display:grid;grid-template-columns:1fr 1fr;min-height:420px;border:1px solid #dce3e7;border-radius:12px;overflow:hidden}.passage-pane,.typing-pane{display:flex;flex-direction:column;min-width:0}.passage-pane{background:#f8fafb;border-right:1px solid #dce3e7}.pane-title{padding:10px 13px;background:#fff;border-bottom:1px solid #e5eaed;color:#7b8992;font-size:9px;font-weight:850;letter-spacing:1px;display:flex;justify-content:space-between;gap:10px}.mini-badge{background:#edf3f6;color:var(--navy);padding:3px 6px;border-radius:5px;font-size:8px}.passage{padding:18px;white-space:pre-wrap;overflow:auto;font-size:18px;line-height:1.82;outline:none;height:100%} .passage.justify-text{text-align:justify;text-align-last:left;hyphens:none}.passage-paragraph{margin:0 0 18px}.passage-paragraph:last-child{margin-bottom:0}.paragraph-marker,.line-marker{display:inline-block;color:#93a4af;font-size:.68em;font-weight:800;vertical-align:middle;margin-left:4px;opacity:.8}.paragraph-marker{padding:2px 5px;background:#e8eff3;border-radius:5px;margin-top:3px}.line-marker{padding:0 2px}.justify-input{text-align:justify;text-align-last:left}.passage .correct{color:#74828b}.passage .wrong{background:#ffdede;color:#a12d2d;border-radius:3px;text-decoration:underline;text-decoration-thickness:1px}.passage .current{background:#dbeaf4;border-radius:3px}.typing-pane{position:relative}.typing-pane textarea{width:100%;flex:1;min-height:360px;border:0;resize:none;outline:none;padding:18px;font:18px/1.82 inherit;color:#24343f}.typing-pane textarea:disabled{background:#fff}.typing-hint{}.pause-overlay{position:absolute;inset:40px 0 0;background:rgba(248,250,251,.94);display:grid;place-items:center;align-content:center;text-align:center;gap:5px}.pause-overlay strong{font-size:23px;color:var(--navy)}.pause-overlay span{font-size:12px;color:#7b8892}.pause-overlay .btn{margin-top:9px}.test-footer{display:flex;justify-content:space-between;gap:10px;color:#788691;font-size:10px;padding:9px 4px 0}.result-top{align-items:flex-start}.result-top p{margin:3px 0 0;color:#7b8891;font-size:12px}.grade{width:74px;height:74px;border-radius:50%;display:grid;place-items:center;background:#eaf2f5;color:var(--navy);font-size:24px;font-weight:900}.result-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:10px}.result-grid>div{background:#f4f7f9;border-radius:11px;padding:18px}.result-grid strong{font-size:28px;color:var(--navy);display:block;margin-top:5px}.result-grid small{display:block;color:#86929a;font-size:9px;margin-top:2px}.result-main{background:#eaf1f5!important}.review-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:10px}.review-card{padding:17px;border:1px solid #e1e7eb;background:#fff;border-radius:11px}.review-card h3{margin:6px 0 6px;color:var(--navy);font-size:16px}.review-card p{margin:0;color:#6d7a84;font-size:12px}.result-actions{display:flex;align-items:center;gap:10px;margin-top:15px}.content-section{padding-top:80px}.library-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.library-empty{grid-column:1/-1;border:1px dashed #c7d3db;background:#fafcfd;border-radius:12px;padding:28px;text-align:center;color:#80909b}.library-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:15px}.library-card .lib-title{font-weight:850;color:var(--navy);font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.library-card .lib-meta{font-size:10px;color:#8a97a0;margin-top:4px}.library-card .lib-preview{font-size:11px;color:#667681;margin:10px 0;height:42px;overflow:hidden}.library-card .lib-actions{display:flex;gap:6px}.library-card button{font-size:10px;padding:7px 9px}.progress-summary{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:12px}.progress-summary>div{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px}.progress-summary strong{font-size:25px;color:var(--navy);display:block;margin-top:3px}.chart-card{padding:17px}.chart-title{display:flex;justify-content:space-between;color:#6f7f8a;font-size:11px;margin-bottom:15px}.chart-title strong{color:var(--navy)}.bar-chart{height:160px;display:flex;align-items:flex-end;gap:8px;border-bottom:1px solid #dce4e9;padding:0 6px}.bar-col{flex:1;max-width:52px;margin:auto;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%}.bar-col i{display:block;width:100%;max-width:32px;background:var(--navy);border-radius:6px 6px 0 0;min-height:4px;opacity:.85}.bar-col span{font-size:8px;color:#7d8a93;margin-top:6px}.history-table{margin-top:12px;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}.history-head,.history-row{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr 1fr;padding:11px 13px;gap:8px;font-size:11px}.history-head{font-weight:850;color:#65757f;background:#f7f9fa}.history-row{border-top:1px solid #edf0f2;color:#344754}.about-section{padding-top:90px;padding-bottom:75px}.about-lead{max-width:770px}.about-lead h2{font-size:40px;line-height:1.1;letter-spacing:-1.5px;color:var(--navy);margin:8px 0 16px}.about-lead p{color:#667681;font-size:15px}.about-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:28px}.about-cards article{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px}.about-cards span{font-size:10px;font-weight:900;color:#8092a0}.about-cards h3{color:var(--navy);margin:6px 0 5px;font-size:16px}.about-cards p{margin:0;color:#6e7c86;font-size:12px}.privacy-note{margin-top:13px;background:#edf3f6;border-radius:12px;padding:16px;display:flex;gap:15px}.privacy-note strong{color:var(--navy);font-size:12px}.privacy-note span{color:#6b7b86;font-size:11px}footer{background:var(--navy);color:#cbd7df;display:flex;justify-content:space-between;gap:20px;padding:24px max(18px,calc((100% - 1160px)/2));font-size:11px}.toast{position:fixed;bottom:22px;left:50%;transform:translate(-50%,15px);background:#172833;color:#fff;border-radius:9px;padding:10px 14px;font-size:12px;opacity:0;pointer-events:none;transition:.22s;z-index:100}.toast.show{opacity:1;transform:translate(-50%,0)}.hidden{display:none!important}body.dark{--navy:#b7d0df;--navy-2:#9ab8ca;--ink:#e8eef2;--muted:#a5b3bd;--line:#30404c;--soft:#17232c;--paper:#16232c;background:#0f171e;color:var(--ink)}body.dark .topbar{background:rgba(18,28,36,.95);border-color:#2c3944}body.dark .brand strong,body.dark .hero h1,body.dark .section-heading h2,body.dark .test-header h2,body.dark .result-top h2,body.dark .about-lead h2,body.dark .config-title h3,body.dark .preset strong,body.dark .result-grid strong,body.dark .live-metrics strong,body.dark .chart-title strong,body.dark .library-card .lib-title,body.dark .about-cards h3,body.dark .start-row strong{color:#dceaf1}body.dark .main-nav a,body.dark .brand small,body.dark .hero p,body.dark .section-heading p,body.dark .about-lead p,body.dark .feature-strip span,body.dark .feature-strip strong,body.dark .library-card .lib-meta,body.dark .library-card .lib-preview,body.dark .history-row,body.dark .about-cards p{color:#a7b6bf}body.dark .material-card,body.dark .config-card,body.dark .test-wrap,body.dark .result-wrap,body.dark .chart-card,body.dark .library-card,body.dark .history-table,body.dark .about-cards article,body.dark .feature-strip article{background:#17232c;border-color:#2c3a44}body.dark .material-toolbar,body.dark .pane-title,body.dark .history-head{background:#1b2933;border-color:#2c3a44}body.dark .field input,body.dark .field select,body.dark .source-view textarea,body.dark .drop-zone,body.dark .typing-pane textarea{background:#111b22;color:#e3edf2;border-color:#354652}body.dark .btn-soft,body.dark .nav-icon{background:#22323e;border-color:#364652;color:#c4d2da}body.dark .btn-plain{color:#afbdc5}body.dark .source-tab{color:#aebcc5}body.dark .source-tab.active{background:#263946;color:#d4e3eb}body.dark .test-stage,body.dark .passage-pane{border-color:#344650}body.dark .passage-pane{background:#121d24}body.dark .typing-pane textarea:disabled{background:#17232c}body.dark .live-metrics>div,body.dark .result-grid>div,body.dark .start-row,body.dark .review-card{background:#1e2d37;border-color:#31414b}body.dark .review-card p,body.dark .result-top p,body.dark .test-footer,body.dark .privacy-note span{color:#a4b3bc}body.dark .privacy-note{background:#1a2a34}body.dark .drop-zone{background:#111b22}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(max-width:900px){.hero{grid-template-columns:1fr;padding-top:55px}.hero-visual{display:none}.feature-strip{grid-template-columns:1fr}.config-grid,.about-cards,.library-grid{grid-template-columns:1fr}.test-stage{grid-template-columns:1fr}.passage-pane{border-right:0;border-bottom:1px solid #dce3e7}.passage{min-height:240px;max-height:320px}.result-grid{grid-template-columns:1fr 1fr}.result-main{grid-column:span 2}.review-grid{grid-template-columns:1fr}.progress-summary{grid-template-columns:1fr 1fr}.settings-grid{grid-template-columns:1fr 1fr}.main-nav a{display:none}}@media(max-width:600px){.topbar{padding:0 13px}.hero{padding-left:13px;padding-right:13px}.hero h1{letter-spacing:-1.7px;font-size:42px}.app-section,.test-wrap,.result-wrap,.content-section,.about-section{padding-left:13px;padding-right:13px}.section-heading,.start-row,.test-header,.result-top{align-items:flex-start;flex-direction:column}.material-meta-row{flex-direction:column}.field{min-width:0}.settings-grid{grid-template-columns:1fr}.mode-presets{grid-template-columns:1fr}.live-metrics{grid-template-columns:repeat(2,1fr)}.result-grid{grid-template-columns:1fr}.result-main{grid-column:auto}.result-actions{flex-wrap:wrap}.test-footer{flex-direction:column}.progress-summary{grid-template-columns:1fr 1fr}.history-head,.history-row{grid-template-columns:1.4fr 1fr 1fr}.history-head div:nth-child(n+4),.history-row div:nth-child(n+4){display:none}.privacy-note{flex-direction:column;gap:3px}footer{flex-direction:column}}