@font-face{font-family:sans;src:url(../media/NotoSans_var-s.p.2bc6_602re7ar.woff2)format("woff2");font-display:swap;font-weight:400 700}@font-face{font-family:sans Fallback;src:local(Arial);ascent-override:100.41%;descent-override:27.52%;line-gap-override:0.0%;size-adjust:106.47%}.sans_366d7e3-module__yuomYW__className{font-family:sans,sans Fallback,Segoe UI,system-ui,sans-serif}.sans_366d7e3-module__yuomYW__variable{--font-sans-face:"sans", "sans Fallback", Segoe UI, system-ui, sans-serif}
@font-face{font-family:display;src:url(../media/NotoSerifDisplay_var-s.p.3tn-x73rgxuq7.woff2)format("woff2");font-display:swap;font-weight:500 800}@font-face{font-family:display Fallback;src:local(Arial);ascent-override:97.41%;descent-override:26.7%;line-gap-override:0.0%;size-adjust:109.74%}.display_a61f47f9-module__mHBN7W__className{font-family:display,display Fallback,Georgia,serif}.display_a61f47f9-module__mHBN7W__variable{--font-display-face:"display", "display Fallback", Georgia, serif}
:root{--bg:#f3f4fb;--surface:#fff;--surface2:#e9ecf8;--line:#d3d8ee;--ink:#141a45;--muted:#4a5178;--primary:#1e2a78;--on-primary:#fff;--link:#2c3fb8;--gold:#e8a317;--on-gold:#1b1400;--red:#c2362f;--green:#13795b;--sky:#3c55d6;--plum:#7b3fa0;--teal:#1f7a8c;--pepper:#d9601a;--pink:#db2777;--success:#0f6b4f;--error:#b42318;--warning:#8a5a00;--tone-h:#b87a00;--tone-m:#1e2a78;--tone-l:#c2362f;--shadow:0 1px 2px #141a450f, 0 6px 20px #141a450f;--radius:14px;--radius-sm:9px;--font-sans:var(--font-sans-face), "Noto Sans", "Segoe UI", system-ui, sans-serif;--font-display:var(--font-display-face), Georgia, "Times New Roman", serif;--step--1:.8125rem;--step-0:.9375rem;--step-1:1.0625rem;--step-2:1.25rem;--step-3:1.5rem;--step-4:1.875rem;--gutter:clamp(16px, 4vw, 32px);--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}@media (prefers-color-scheme:dark){:root{--bg:#0d1130;--surface:#161b45;--surface2:#1f2557;--line:#2f376f;--ink:#eceeff;--muted:#b3b9e0;--primary:#aeb9ff;--on-primary:#0d1130;--link:#b8c2ff;--gold:#f2b94a;--red:#f07068;--green:#3dc79a;--sky:#8ea0ff;--plum:#c49be0;--teal:#5cc5d6;--pepper:#f59a5e;--pink:#f27bb4;--success:#5fd6a8;--error:#ff8a80;--warning:#f5c060;--tone-h:#f2b94a;--tone-m:#aeb9ff;--tone-l:#f07068;--shadow:0 1px 2px #0000004d, 0 8px 24px #00000040;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{background:var(--bg);color:var(--ink);font:400 var(--step-0)/1.6 var(--font-sans);font-feature-settings:"kern", "liga";-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;margin:0}img,svg{max-width:100%}a{color:var(--link);text-underline-offset:2px;text-decoration-thickness:1px}a:hover{text-decoration-thickness:2px}:focus-visible{outline:3px solid var(--gold);outline-offset:2px;border-radius:4px}h1,h2,h3,h4{letter-spacing:-.01em;margin:0 0 .4em;line-height:1.2}h1{font:600 var(--step-4)/1.15 var(--font-display);letter-spacing:-.02em}h2{font:600 var(--step-3)/1.2 var(--font-display)}h3{font-size:var(--step-1);font-weight:650}h4{font-size:var(--step-0);font-weight:650}p{margin:0 0 .9em}small,.small{font-size:var(--step--1)}.muted{color:var(--muted)}.yo{font-feature-settings:"kern", "ccmp", "mark", "mkmk"}.sr-only{clip:rect(0 0 0 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.skip{background:var(--primary);color:var(--on-primary);z-index:50;border-radius:8px;padding:8px 12px;position:absolute;top:8px;left:-999px}.skip:focus{left:8px}.strip{background:repeating-linear-gradient(90deg, var(--primary) 0 34px, var(--gold) 34px 40px, var(--red) 40px 52px, var(--gold) 52px 56px, var(--green) 56px 78px, var(--surface) 78px 80px, var(--sky) 80px 96px, var(--plum) 96px 104px, var(--pepper) 104px 112px);height:6px}.wrap{width:100%;max-width:1160px;padding:0 var(--gutter);margin:0 auto}.topbar{background:var(--surface);border-bottom:1px solid var(--line);z-index:20;position:sticky;top:0}.topbar .wrap{align-items:center;gap:18px;min-height:58px;display:flex}.brand{color:var(--ink);white-space:nowrap;align-items:center;gap:9px;font-weight:700;text-decoration:none;display:inline-flex}.brand-name{font:600 1.0625rem/1 var(--font-display);letter-spacing:-.01em}.brand-name b{color:var(--primary);font-weight:600}.nav{scrollbar-width:none;flex-wrap:nowrap;flex:auto;gap:0;min-width:0;display:flex;overflow-x:auto}.nav::-webkit-scrollbar{display:none}.nav a{color:var(--ink);font-size:var(--step--1);border-radius:999px;flex:none;padding:6px 9px;font-weight:600;text-decoration:none}.nav a:hover{background:var(--surface2)}.nav a[aria-current=page]{background:var(--primary);color:var(--on-primary)}.top-actions{align-items:center;gap:8px;margin-left:auto;display:flex}.menu-toggle{display:none}@media (max-width:1180px){.topbar .wrap{flex-wrap:wrap;row-gap:2px;padding-top:6px;padding-bottom:4px}.nav{flex-basis:100%;order:3;margin:0 -9px;padding-bottom:4px}}.footer{background:var(--primary);color:#e5e8ff;margin-top:56px}@media (prefers-color-scheme:dark){.footer{background:#0a0d26}}.footer a{color:#fff}.footer .btn.ghost{color:#fff;min-height:0;padding-left:0;padding-right:0;text-decoration:underline}.footer .wrap{grid-template-columns:1.4fr repeat(3,1fr);gap:22px;padding-top:28px;padding-bottom:28px;display:grid}.footer h3{color:var(--gold);font-size:var(--step--1);text-transform:uppercase;letter-spacing:.08em;margin-bottom:8px}.footer ul{font-size:var(--step--1);gap:4px;margin:0;padding:0;list-style:none;display:grid}.footer .legal{font-size:var(--step--1);color:#c9cef5;border-top:1px solid #ffffff2e;padding:14px 0}@media (max-width:760px){.footer .wrap{grid-template-columns:1fr 1fr}}main{min-height:60vh;display:block}.page{padding-top:28px}.page-head{margin-bottom:20px}.page-head p{color:var(--muted);max-width:64ch}.eyebrow{font-size:var(--step--1);text-transform:uppercase;letter-spacing:.09em;color:var(--muted);margin-bottom:6px;font-weight:700;display:inline-block}.oneline{white-space:nowrap}@media (max-width:420px){.oneline{white-space:normal}}.breadcrumbs{font-size:var(--step--1);color:var(--muted);margin-bottom:10px}.breadcrumbs a{color:var(--muted)}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px}.card.flat{box-shadow:none}.card h3{margin-bottom:4px}.grid{gap:16px;display:grid}.grid.two{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}.grid.three{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}.grid.four{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}.row{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.spread{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;display:flex}.stack>*+*{margin-top:12px}.section{margin-top:40px}.section-head{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:14px;display:flex}.section-head h2{margin:0}hr{border:0;border-top:1px solid var(--line);margin:22px 0}.btn{background:var(--primary);min-height:40px;color:var(--on-primary);font:650 var(--step--1)/1 var(--font-sans);cursor:pointer;border:1px solid #0000;border-radius:999px;justify-content:center;align-items:center;gap:8px;padding:8px 16px;text-decoration:none;transition:transform .12s,background .12s;display:inline-flex}.btn:hover{text-decoration:none;transform:translateY(-1px)}.btn:active{transform:none}.btn[disabled]{opacity:.55;cursor:not-allowed;transform:none}.btn.gold{background:var(--gold);color:var(--on-gold)}.btn.secondary{background:var(--surface);color:var(--ink);border-color:var(--line)}.btn.ghost{color:var(--link);background:0 0;padding-left:8px;padding-right:8px}.btn.danger{background:var(--error);color:#fff}.btn.small{min-height:32px;padding:6px 12px}.btn.block{width:100%}.chip{font-size:var(--step--1);background:color-mix(in oklab, var(--hue,var(--primary)) 14%, var(--surface));color:var(--ink);border:1px solid color-mix(in oklab, var(--hue,var(--primary)) 35%, var(--surface));border-radius:999px;align-items:center;gap:6px;padding:3px 10px;font-weight:600;text-decoration:none;display:inline-flex}.chip .dot,.dot{background:var(--hue,var(--primary));border-radius:50%;flex:none;width:9px;height:9px;display:inline-block}a.chip:hover{background:color-mix(in oklab, var(--hue,var(--primary)) 24%, var(--surface))}.chip[aria-current=true]{background:var(--hue,var(--primary));color:#fff;border-color:#0000}.chip[aria-current=true] .dot{background:#fff}.badge{white-space:nowrap;border-radius:999px;align-items:center;gap:5px;padding:2px 8px;font-size:.75rem;font-weight:700;display:inline-flex}.badge.review{background:color-mix(in oklab, var(--gold) 22%, var(--surface));color:var(--ink)}.badge.verified{background:color-mix(in oklab, var(--green) 20%, var(--surface));color:var(--success)}.badge.neutral{background:var(--surface2);color:var(--muted)}.badge.bad{background:color-mix(in oklab, var(--red) 18%, var(--surface));color:var(--error)}.alert{border-radius:var(--radius-sm);font-size:var(--step--1);margin:0;padding:10px 14px}.alert.error{background:color-mix(in oklab, var(--red) 12%, var(--surface));color:var(--error);border:1px solid color-mix(in oklab, var(--red) 35%, var(--surface))}.alert.ok{background:color-mix(in oklab, var(--green) 12%, var(--surface));color:var(--success);border:1px solid color-mix(in oklab, var(--green) 35%, var(--surface))}.alert.info{background:color-mix(in oklab, var(--sky) 10%, var(--surface));border:1px solid color-mix(in oklab, var(--sky) 30%, var(--surface))}.form{gap:14px;display:grid}.form .cols{grid-template-columns:1fr 1fr;gap:14px;display:grid}@media (max-width:560px){.form .cols{grid-template-columns:1fr}}label{font-size:var(--step--1);gap:5px;font-weight:600;display:grid}.hint{color:var(--muted);font-weight:400}input,select,textarea{font:400 var(--step-0)/1.4 var(--font-sans);color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);width:100%;min-height:42px;padding:9px 12px}textarea{resize:vertical;min-height:96px}input:focus,select:focus,textarea:focus{outline:3px solid color-mix(in oklab, var(--gold) 55%, transparent);outline-offset:0;border-color:var(--gold)}label.check{align-items:flex-start;gap:10px;font-weight:500;display:flex}label.check input{width:18px;height:18px;min-height:0;accent-color:var(--primary);margin-top:2px}fieldset{border:1px solid var(--line);border-radius:var(--radius-sm);margin:0;padding:12px 14px}legend{font-size:var(--step--1);padding:0 4px;font-weight:650}.form-narrow{max-width:460px}.toneword{flex-direction:column;align-items:flex-start;gap:2px;display:inline-flex}.toneline{display:block;overflow:visible}.toneline .staff{stroke:var(--line);stroke-width:1px}.toneline .path{fill:none;stroke:var(--muted);stroke-width:1.5px;stroke-linecap:round;stroke-linejoin:round;opacity:.55}.toneline .H{fill:var(--tone-h)}.toneline .M{fill:var(--tone-m)}.toneline .L{fill:var(--tone-l)}.tone-legend{font-size:var(--step--1);color:var(--muted);flex-wrap:wrap;align-items:center;gap:12px;margin-left:10px;display:inline-flex}.tone-legend i{vertical-align:0;border-radius:50%;width:9px;height:9px;margin-right:5px;display:inline-block}@media (prefers-reduced-motion:no-preference){.toneline.draw .path{stroke-dasharray:400;stroke-dashoffset:400px;animation:.9s ease-out forwards draw}.toneline.draw circle{animation:.35s ease-out both pop}@keyframes draw{to{stroke-dashoffset:0}}@keyframes pop{0%{transform-box:fill-box;transform-origin:50%;transform:scale(0)}}}.syllables{font-size:var(--step--1);flex-wrap:wrap;gap:6px;display:inline-flex}.syl{border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:2px 8px}.syl.H{border-color:var(--tone-h)}.syl.L{border-color:var(--tone-l)}.syl.M{border-color:var(--tone-m)}.hero{background:var(--surface);border-bottom:1px solid var(--line);position:relative;overflow:hidden}.hero:before{content:"";pointer-events:none;opacity:.5;background-image:radial-gradient(circle at 1px 1px, color-mix(in oklab, var(--primary) 16%, transparent) 1.2px, transparent 1.6px);background-size:18px 18px;position:absolute;inset:0;-webkit-mask-image:linear-gradient(90deg,#0000 40%,#000 100%);mask-image:linear-gradient(90deg,#0000 40%,#000 100%)}.hero .wrap{grid-template-columns:1.1fr .9fr;align-items:center;gap:36px;padding-top:40px;padding-bottom:40px;display:grid;position:relative}@media (max-width:880px){.hero .wrap{grid-template-columns:1fr;gap:24px;padding-top:28px;padding-bottom:28px}}.hero h1{margin-bottom:10px;font-size:clamp(1.75rem,3.6vw,2.5rem)}.hero h1 em{color:var(--primary);background:linear-gradient(transparent 62%, color-mix(in oklab, var(--gold) 45%, transparent) 62%);font-style:normal}.hero .lead{font-size:var(--step-1);color:var(--muted);max-width:52ch}.searchbox{background:var(--surface);border:2px solid var(--primary);box-shadow:var(--shadow);border-radius:999px;gap:8px;max-width:560px;padding:5px 5px 5px 16px;display:flex}.searchbox input{background:0 0;border:0;min-height:38px;padding:6px 0}.searchbox input:focus{outline:none}.searchbox:focus-within{outline:3px solid color-mix(in oklab, var(--gold) 55%, transparent)}.search-hints{font-size:var(--step--1);color:var(--muted);margin-top:8px}.search-hints a{color:var(--muted)}.tonedemo{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:18px}.tonedemo .tabs{gap:6px;margin-bottom:12px;display:flex}.tonedemo .tabs button{font:600 var(--step-1)/1.2 var(--font-display);border-radius:var(--radius-sm);border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer;flex:1;padding:10px 6px 8px}.tonedemo .tabs button[aria-selected=true]{border-color:var(--primary);box-shadow:inset 0 -3px 0 var(--gold)}.tonedemo .big{font:600 clamp(2rem, 5vw, 2.75rem)/1 var(--font-display)}.tonedemo .meaning{font-size:var(--step-1)}.word-card{color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);border-left:4px solid var(--hue,var(--primary));gap:6px;padding:14px 16px;text-decoration:none;transition:transform .12s,box-shadow .12s;display:grid}.word-card:hover{box-shadow:var(--shadow);text-decoration:none;transform:translateY(-2px)}.word-card .hw{font:600 var(--step-2)/1.15 var(--font-display)}.word-card .gloss{color:var(--muted);font-size:var(--step--1)}.word-hero{border-top:6px solid var(--hue,var(--primary))}.word-hero .hw{font:600 clamp(1.9rem, 5vw, 2.6rem)/1.05 var(--font-display);margin:4px 0 6px}.facts{font-size:var(--step--1);grid-template-columns:max-content 1fr;gap:6px 16px;margin:0;display:grid}.facts dt{color:var(--muted)}.facts dd{margin:0}.result{border-bottom:1px solid var(--line);color:var(--ink);grid-template-columns:minmax(150px,220px) 1fr auto;align-items:center;gap:14px;padding:12px 16px;text-decoration:none;display:grid}.result:hover{background:var(--surface2);text-decoration:none}.result .hw{font:600 var(--step-2)/1.1 var(--font-display)}.results{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}@media (max-width:600px){.result{grid-template-columns:1fr;gap:4px}}.cat-tile{border-radius:var(--radius);color:var(--ink);background:linear-gradient(135deg, color-mix(in oklab, var(--hue) 18%, var(--surface)), color-mix(in oklab, var(--hue) 6%, var(--surface)));border:1px solid color-mix(in oklab, var(--hue) 35%, var(--surface));gap:4px;padding:14px 16px;text-decoration:none;display:grid;position:relative;overflow:hidden}.cat-tile:after{content:"";border:10px solid color-mix(in oklab, var(--hue) 30%, transparent);border-radius:50%;width:70px;height:70px;position:absolute;bottom:-18px;right:-18px}.cat-tile:hover{text-decoration:none;transform:translateY(-2px)}.cat-tile .yo{font:600 var(--step-1) var(--font-display)}.cat-tile .n{font-size:var(--step--1);color:var(--muted)}.path{counter-reset:lesson;gap:10px;margin:0;padding:0;list-style:none;display:grid}.path li{counter-increment:lesson}.lesson-row{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);color:var(--ink);grid-template-columns:44px 1fr auto;align-items:center;gap:14px;padding:12px 14px;text-decoration:none;display:grid}.lesson-row:hover{border-color:var(--primary);text-decoration:none}.lesson-row .num{width:44px;height:44px;font:600 var(--step-1) var(--font-display);background:color-mix(in oklab, var(--hue,var(--primary)) 16%, var(--surface));color:var(--ink);border:2px solid var(--hue,var(--primary));border-radius:50%;place-items:center;display:grid}.lesson-row.done .num{background:var(--green);border-color:var(--green);color:#fff}.lesson-row .num:before{content:counter(lesson)}.lesson-row.done .num:before{content:"✓"}.lesson-row h3{font-size:var(--step-0);margin:0}.lesson-row .yo-title{color:var(--muted);font-size:var(--step--1)}.progressbar{background:var(--surface2);border-radius:999px;height:8px;overflow:hidden}.progressbar>span{background:linear-gradient(90deg, var(--gold), var(--pepper), var(--red));border-radius:inherit;height:100%;display:block}.lesson-band{background:linear-gradient(120deg, var(--primary), color-mix(in oklab, var(--primary) 70%, var(--plum)));color:#fff;border-radius:var(--radius);padding:22px;position:relative;overflow:hidden}.lesson-band:after{content:"";pointer-events:none;background-image:radial-gradient(circle at 2px 2px,#ffffff24 1.5px,#0000 2px);background-size:16px 16px;position:absolute;inset:0;-webkit-mask-image:linear-gradient(90deg,#0000 50%,#000);mask-image:linear-gradient(90deg,#0000 50%,#000)}.lesson-band h1{color:#fff}.lesson-band .eyebrow{color:var(--gold)}@media (prefers-color-scheme:dark){.lesson-band{background:linear-gradient(120deg,#253399,#3b2470)}}.steps{flex-wrap:wrap;gap:6px;margin:16px 0;display:flex}.steps button{font:600 var(--step--1)/1 var(--font-sans);border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer;border-radius:999px;padding:8px 12px}.steps button[aria-current=step]{background:var(--primary);color:var(--on-primary);border-color:var(--primary)}.steps button.done{border-color:var(--green)}.prose p,.prose li{max-width:68ch}.prose ul{padding-left:1.2em}.flash{text-align:center;cursor:pointer;perspective:800px;place-items:center;min-height:190px;display:grid}.flash .face{justify-items:center;gap:8px;display:grid}.options{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:8px;display:grid}.option{text-align:left;border-radius:var(--radius-sm);border:2px solid var(--line);background:var(--surface);color:var(--ink);font:500 var(--step-0)/1.35 var(--font-sans);cursor:pointer;padding:12px 14px}.option:hover{border-color:var(--primary)}.option[aria-pressed=true]{border-color:var(--primary);background:color-mix(in oklab, var(--primary) 10%, var(--surface))}.option.correct{border-color:var(--green);background:color-mix(in oklab, var(--green) 14%, var(--surface))}.option.wrong{border-color:var(--red);background:color-mix(in oklab, var(--red) 10%, var(--surface))}.option .yo,.option.yo{font-family:var(--font-display);font-size:var(--step-1)}.keyboard{flex-wrap:wrap;gap:6px;margin-top:8px;display:flex}.keyboard button{border:1px solid var(--line);background:var(--surface2);min-width:38px;min-height:36px;color:var(--ink);font:500 var(--step-0)/1 var(--font-sans);cursor:pointer;border-radius:8px;padding:4px 9px}.keyboard button:hover{border-color:var(--primary)}.keyboard .mark{background:color-mix(in oklab, var(--gold) 18%, var(--surface))}.match{grid-template-columns:1fr 1fr;gap:8px;display:grid}.score-ring{--p:0;background:conic-gradient(var(--green) calc(var(--p) * 1%), var(--surface2) 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