:root{--paper:#f7f7f1;--white:#fff;--ink:#243d34;--muted:#788079;--green:#214d40;--lime:#d8edac;--line:#e3e6dc;--orange:#e5a569;--light:#edf2e8;--red:#9e4039;--radius:22px;--solid:var(--green);--accent:var(--green);--on-solid:#fff;--on-lime:#243d34;color-scheme:light}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;font-size:15px;line-height:1.55}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:default;opacity:.55}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid #7c9d56;outline-offset:4px}button{color:inherit}.skip{position:fixed;top:-80px;left:20px;background:var(--lime);padding:10px;z-index:100}.skip:focus{top:12px}.sidebar{position:fixed;inset:0 auto 0 0;width:238px;border-right:1px solid var(--line);padding:36px 22px;background:#fbfcf7;display:flex;flex-direction:column;z-index:10}.brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:760;letter-spacing:-.7px;line-height:1.2}.brand-icon{display:grid;place-items:center;width:39px;height:43px;background:var(--solid);color:var(--lime);border-radius:13px;font:bold 37px Georgia}.brand-sub{display:block;font-size:8px;letter-spacing:2.5px;color:var(--muted);margin-top:8px}.course-label{margin:53px 14px 15px;font-size:9px;font-weight:650;letter-spacing:1.9px;color:var(--muted)}nav{display:flex;flex-direction:column;gap:6px}.nav-link{display:flex;align-items:center;gap:12px;min-height:48px;border-radius:12px;padding:12px 14px;font-size:13px;color:var(--muted)}.nav-link:hover{background:var(--light)}.nav-link.active{background:var(--solid);color:var(--on-solid);font-weight:600}.nav-link svg{width:19px;height:19px;flex-shrink:0}.nav-count{margin-left:auto;font-size:10px;border-radius:6px;padding:1px 5px;background:#eceddf;color:var(--accent)}.sidebar-bottom{margin-top:auto;padding:18px 14px 0}.sidebar-bottom p{font-size:13px;line-height:1.7}.local-tag{font-size:10px;font-weight:600;display:flex;gap:7px;align-items:center}.online-dot{width:6px;height:6px;border-radius:50%;background:#8aa659}.tiny{font-size:10px;color:var(--muted)}.workspace{margin-left:238px;min-height:100vh}.topbar{height:85px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;padding:0 44px;font-size:11px}.breadcrumb{color:var(--muted);display:flex;gap:15px}.breadcrumb strong{font-weight:500;color:var(--muted)}.top-actions{display:flex;gap:22px;align-items:center}.daily{color:var(--muted)}.avatar{background:#e9ecdf;display:grid;place-items:center;font-size:21px;font-family:Georgia;width:32px;height:32px;border-radius:50%}main{max-width:1370px;margin:auto;padding:38px 44px 42px;min-height:calc(100vh - 153px)}h1,h2,h3,p{margin-top:0}h1{font-size:37px;line-height:1.2;letter-spacing:-1.5px;font-weight:650;margin-bottom:12px}h2{font-size:22px;line-height:1.3;letter-spacing:-.65px;font-weight:650}h3{font-size:17px;letter-spacing:-.4px;font-weight:650;margin-bottom:8px}.eyebrow{font-size:10px;letter-spacing:2px;font-weight:650;text-transform:uppercase;color:var(--muted);margin-bottom:12px}.intro{color:var(--muted);font-size:13px;max-width:660px;margin-bottom:0}.page-title{margin-bottom:30px}.title-row{display:flex;align-items:center;justify-content:space-between;gap:15px}.title-row h2{margin-bottom:0}.muted{color:var(--muted)}.hero{display:grid;grid-template-columns:1.35fr 1fr;min-height:297px;background:var(--solid);color:white;border-radius:var(--radius);overflow:hidden;position:relative;margin:30px 0 22px}.hero-content{padding:30px 34px;z-index:1}.hero .eyebrow{color:#c8ddad;font-size:9px}.hero h2{font-family:Georgia,"Times New Roman",serif;font-weight:400;font-size:38px;letter-spacing:-1px;line-height:1.13;margin-bottom:14px}.hero p{font-size:12px;line-height:1.7;color:#d1dfd0;max-width:355px}.pill{display:inline-flex;align-items:center;border:1px solid #5b7863;border-radius:50px;padding:5px 10px;font-size:9px;gap:6px;margin-bottom:18px;color:#d6e2cf}.hero-art{display:flex;align-items:center;justify-content:center;position:relative;background:radial-gradient(ellipse at center,#34604a 0,transparent 70%);padding:18px}.hero-art svg{max-width:100%;height:260px}.hero-art .art-note{position:absolute;bottom:25px;right:30px;font-size:9px;letter-spacing:1px;color:#afc7a6;transform:rotate(-5deg)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:0;border-radius:10px;padding:12px 19px;font-size:12px;font-weight:600;min-height:43px;background:var(--solid);color:#fff}.btn:hover{filter:brightness(1.08)}.btn svg{width:16px;height:16px}.btn-lime{color:var(--ink);background:var(--lime)}.btn-outline{background:transparent;border:1px solid var(--line);color:var(--ink)}.btn-white{background:var(--white);color:var(--ink)}.btn-small{padding:8px 12px;min-height:35px;font-size:11px}.btn-warm{background:#f2e2d0;color:#7c532e}.text-link{background:none;border:0;color:var(--accent);font-size:11px;display:inline-flex;gap:7px;align-items:center;padding:4px}.text-link svg{width:15px;height:15px}.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:30px}.metric{display:flex;gap:13px;align-items:center;border:1px solid var(--line);border-radius:14px;padding:16px;background:#fbfcf8}.metric-icon{background:#ecf0e3;border-radius:10px;display:grid;place-items:center;width:39px;height:39px}.metric-icon svg{width:19px;height:19px}.metric strong{font-size:21px;letter-spacing:-.6px;font-weight:650}.metric small{font-size:10px;color:var(--muted);display:block}.home-grid{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:22px}.section-heading{margin-bottom:15px}.section-heading h2{font-size:18px}.path{background:var(--white);border:1px solid var(--line);border-radius:17px;padding:6px 21px}.path-item{display:flex;align-items:center;gap:14px;padding:17px 0;border-bottom:1px solid var(--line)}.path-item:last-child{border:0}.step-num{height:34px;width:34px;flex:0 0 34px;border:1px solid var(--line);border-radius:50%;display:grid;place-items:center;font-size:11px;color:var(--muted)}.path-item:first-child .step-num{background:var(--lime);border-color:var(--lime);color:var(--accent)}.path-item .path-info{flex:1}.path-info h3{font-size:12px;margin:0 0 4px}.path-info p{font-size:10px;color:var(--muted);margin:0}.path-item svg{width:17px}.path-item:hover .path-info h3{color:#668b3c}.note-card{background:#eaf0dd;border-radius:17px;padding:23px}.note-card .eyebrow{font-size:8px;color:var(--muted);margin-bottom:16px}.note-card h3{font-family:Georgia,serif;font-size:25px;font-weight:400;line-height:1.2}.note-card p{font-size:11px;color:var(--muted);line-height:1.65}.note-card .quote{font-size:15px;color:var(--accent);line-height:1.5}.sound{display:inline-flex;align-items:center;gap:7px;background:none;border:0;color:var(--accent);font-size:10px;padding:0}.sound svg{width:16px;height:16px}.home-bottom{margin-top:24px;border-top:1px solid var(--line);padding-top:18px;display:flex;gap:12px;align-items:center;font-size:11px;color:var(--muted)}.home-bottom svg{width:16px;height:16px}.home-bottom a{margin-left:auto;white-space:nowrap;color:var(--accent)}.footer{padding:18px 44px 24px;color:var(--muted);font-size:9px;display:flex;gap:8px}.footer-right{margin-left:auto}.panel{padding:28px;border:1px solid var(--line);border-radius:18px;background:var(--white);margin-bottom:20px}.panel p:last-child{margin-bottom:0}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:18px}.three-col{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.controls{display:flex;gap:12px;align-items:end;flex-wrap:wrap;margin:22px 0}.control{display:flex;flex-direction:column;gap:6px;flex:1;min-width:150px}.control label{font-size:11px;color:var(--muted)}select,input[type=text],input[type=search],textarea{padding:12px 14px;background:var(--white);border:1px solid var(--line);border-radius:9px;color:var(--ink);width:100%;min-height:44px}textarea{min-height:100px;resize:vertical}.control select{font-size:12px}.segmented{display:flex;gap:5px;flex-wrap:wrap;background:#eaeedf;padding:5px;border-radius:11px;width:fit-content}.segmented button{border:0;background:transparent;border-radius:7px;padding:9px 14px;font-size:11px;color:var(--muted)}.segmented button.active{background:var(--white);color:var(--accent);box-shadow:0 1px 4px #244b3510}.progress-bar{height:5px;background:#e8eddf;border-radius:5px;overflow:hidden}.progress-bar span{height:100%;display:block;background:#87a66b;transition:width .3s}.session-top{display:flex;align-items:center;justify-content:space-between;font-size:11px;margin-bottom:14px;color:var(--muted)}.study-card{max-width:800px;margin:0 auto}.question-panel{padding:35px;background:var(--white);border:1px solid var(--line);border-radius:21px;margin-top:20px}.question-meta{display:flex;justify-content:space-between;gap:15px;font-size:10px;color:var(--muted);margin-bottom:28px}.question{font-size:27px;letter-spacing:-.7px;line-height:1.6;margin-bottom:12px;font-weight:500;overflow-wrap:anywhere}.blank{display:inline-block;min-width:75px;border-bottom:2px solid 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strong{display:block;font-size:14px;margin-bottom:6px}.feedback p{margin-bottom:6px}.feedback .answer{font-size:18px}.accent-keys{display:flex;gap:6px;margin-top:9px;flex-wrap:wrap}.accent-keys button{border:1px solid var(--line);border-radius:5px;padding:3px 10px;background:#f6f8f1;font-size:12px}.answer-row{display:flex;gap:10px;margin-top:20px}.answer-row input{flex:1}.result{padding:40px;text-align:center;background:var(--white);border:1px solid var(--line);border-radius:22px;margin-top:20px}.result-icon{margin:0 auto 22px;font-size:33px;background:var(--lime);color:var(--accent);width:70px;height:70px;border-radius:50%;display:grid;place-items:center}.result h2{font-size:28px}.result p{color:var(--muted);font-size:13px}.button-row{display:flex;gap:10px;flex-wrap:wrap;align-items:center;justify-content:center;margin-top:23px}.flash-card{position:relative;display:flex;align-items:center;justify-content:center;flex-direction:column;text-align:center;min-height:315px;background:var(--white);border:1px solid var(--line);border-radius:21px;padding:35px;cursor:pointer;margin-top:20px}.flash-card .category{position:absolute;top:23px;left:24px;font-size:9px;text-transform:uppercase;letter-spacing:1.6px;color:var(--muted)}.flash-card .flash-word{font-family:Georgia,serif;font-size:35px;margin:20px 0;line-height:1.3}.flash-card .flash-answer{font-size:19px;margin:0 0 15px;line-height:1.4}.flash-example{font-size:14px;color:var(--muted)}.hint-label{font-size:10px;color:var(--muted);margin-top:20px}.flash-footer{display:flex;justify-content:center;gap:12px;margin-top:22px}.flash-footer button{min-width:155px}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;font-size:13px}th{text-align:left;padding:12px 14px;color:var(--muted);font-size:10px;font-weight:500;text-transform:uppercase;letter-spacing:.8px;white-space:nowrap;background:#f5f7ef}td{padding:12px 14px;border-bottom:1px solid var(--line)}tr:last-child td{border:0}.highlight-row td{background:#f1f6e5}.grammar-intro{font-size:14px;line-height:1.8;max-width:810px}.rule-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:22px}.rule{background:var(--white);border:1px solid var(--line);border-radius:16px;padding:23px}.rule .label{font-family:Georgia,serif;font-size:27px;line-height:1}.rule p{font-size:12px;line-height:1.8;margin-bottom:10px}.example{background:#f3f6ed;border-radius:8px;padding:10px 12px;font-size:13px;margin-bottom:7px}.example span{display:block;font-size:10px;color:var(--muted);margin-top:4px}.notice{padding:17px 20px;background:#f1ecdf;border-radius:12px;font-size:12px;line-height:1.8;margin:20px 0}.chips{display:flex;flex-wrap:wrap;gap:8px}.chip{border:1px solid var(--line);border-radius:50px;padding:6px 11px;font-size:11px;background:#fff}.chip b{font-weight:600}.word-list{display:flex;flex-direction:column}.word-row{display:grid;grid-template-columns:minmax(200px,1fr) 1.2fr 35px;gap:18px;border-bottom:1px solid var(--line);padding:17px 0;align-items:start}.word-row:last-child{border:0}.word-row strong{font-size:14px;font-weight:600}.word-row p{font-size:12px;color:var(--muted);margin:0}.word-row small{font-size:11px;display:block;color:var(--muted);margin-top:5px}.icon-btn{background:#f0f4e9;border:0;border-radius:50%;width:34px;height:34px;display:grid;place-items:center}.icon-btn svg{width:15px;height:15px}.dialog-layout{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:23px}.scene-label{font-size:9px;letter-spacing:2px;color:var(--muted);text-transform:uppercase;margin-bottom:25px}.bubble{background:#f0f3e8;border-radius:0 15px 15px 15px;padding:20px;position:relative}.bubble .speaker{font-size:10px;color:var(--muted);margin-bottom:10px}.bubble .line{font-size:20px;line-height:1.5;margin-bottom:12px}.bubble .translation{margin:0}.goal{margin-top:23px;font-size:13px;line-height:1.8}.dialog-options{grid-template-columns:1fr;margin-top:20px}.dialog-options .option{font-size:13px;line-height:1.6}.dialog-side{background:#eff3e7;border-radius:17px;padding:24px;height:fit-content}.dialog-side h3{font-size:12px;margin-bottom:18px}.dialog-step{display:flex;gap:9px;font-size:10px;line-height:1.6;color:var(--muted);margin-bottom:12px;align-items:start}.dialog-step b{width:17px;height:17px;font-size:8px;display:grid;place-items:center;border:1px solid #cdd7c1;border-radius:50%;flex-shrink:0}.dialog-step.current{color:var(--accent);font-weight:600}.dialog-step.done b{background:#cedfac;color:#365332;border-color:#cedfac}.recorder{border-top:1px solid #dce4d0;padding-top:17px;margin-top:20px}.recorder p{font-size:10px;color:var(--muted);line-height:1.7}.recorder .btn{width:100%;margin-bottom:10px}.recording{color:#a94739}.recording::before{content:'●';margin-right:6px}audio{width:100%;height:37px}.record-result{margin-top:12px}.record-result a{font-size:10px;text-decoration:underline;display:block}.checklist{list-style:none;padding:0;margin:0}.checklist li{padding:13px 0;border-bottom:1px solid var(--line);font-size:13px}.checklist label{display:flex;gap:12px;align-items:flex-start;cursor:pointer}.checklist input{accent-color:var(--accent);width:17px;height:17px;margin-top:2px}.checklist .es{display:block;color:var(--muted);font-size:12px;margin-top:4px}.checklist input:checked+span{text-decoration:line-through;color:var(--muted)}.mobile-note{display:none}.empty{text-align:center;padding:40px;color:var(--muted);font-size:13px}.mistake-item{padding:16px 0;border-bottom:1px solid var(--line)}.mistake-item p{font-size:15px;margin-bottom:8px}.mistake-item small{font-size:11px;color:var(--muted)}details{border:1px solid var(--line);border-radius:12px;padding:17px 20px;background:var(--white);margin:12px 0}summary{cursor:pointer;font-size:13px;font-weight:600}details p,details li{font-size:12px;color:var(--muted);line-height:1.8}details img{max-width:100%;height:auto;border-radius:10px;margin-top:20px}.source-card{border:1px solid var(--line);border-radius:15px;padding:23px;background:#fff}.source-card span{font-size:10px;color:var(--muted)}.source-card h3{font-size:16px;margin:10px 0}.source-card p{font-size:12px;color:var(--muted);margin-bottom:0}.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(120px);background:var(--solid);color:var(--on-solid);border-radius:10px;padding:13px 22px;font-size:12px;z-index:100;box-shadow:0 5px 30px #214d4030;transition:transform .25s;max-width:90vw}.toast.show{transform:translateX(-50%) translateY(0)}.stats-large{font-size:38px;font-weight:600;letter-spacing:-1px}.data-actions{display:flex;gap:10px;flex-wrap:wrap}.sr-only{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.history-row{display:flex;justify-content:space-between;font-size:12px;border-bottom:1px solid var(--line);padding:11px 0}.translation-toggle{margin-top:12px}.total-count{font-size:11px;color:var(--muted)}.search-wrap{margin-top:23px}.checklist-top{display:flex;justify-content:space-between;gap:10px;align-items:center}.checklist-top h2{margin:0}.session-label{font-size:10px;text-transform:uppercase;letter-spacing:1px;color:var(--muted)}
@media(min-width:1500px){main{padding-top:45px}.hero{min-height:330px}.hero-art svg{height:290px}.hero-content{padding:37px 40px}.hero h2{font-size:44px}.hero p{font-size:14px}.hero .eyebrow{font-size:10px}.path-info h3{font-size:14px}.path-info p{font-size:12px}.home-grid{grid-template-columns:1fr 320px}}
@media(max-width:1150px){.sidebar{width:205px;padding:30px 15px}.workspace{margin-left:205px}.brand{font-size:16px}.nav-link{font-size:12px;padding:11px}.topbar{padding:0 28px}main{padding:30px 28px}.hero h2{font-size:31px}.hero-content{padding:27px}.hero{grid-template-columns:1.3fr 1fr}.hero-art{padding:6px}.home-grid{grid-template-columns:1fr 245px;gap:16px}.dialog-layout{grid-template-columns:1fr 220px;gap:16px}.question-panel{padding:25px}.footer{padding-left:28px;padding-right:28px}}
@media(max-width:930px){.home-grid{grid-template-columns:1fr}.note-card{display:none}.hero{grid-template-columns:1.3fr 1fr}.hero-art svg{height:220px}.metrics{gap:9px}.metric{padding:13px;gap:9px}.metric-icon{width:31px;height:31px}.metric small{font-size:9px}.hero h2{font-size:29px}.dialog-layout{grid-template-columns:1fr}.dialog-side .dialog-step{display:none}.dialog-side{display:flex;gap:25px;align-items:start}.dialog-side>h3{display:none}.recorder{padding:0;margin:0;border:0;flex:1}.dialog-side .tiny{max-width:210px}.three-col{grid-template-columns:1fr}.word-row{grid-template-columns:1fr 1fr 30px;gap:12px}}
@media(max-width:720px){.sidebar{position:relative;width:100%;padding:17px 20px 12px;border-right:0;border-bottom:1px solid var(--line)}.brand{font-size:18px}.brand-icon{height:35px;width:33px;font-size:32px}.brand-sub{font-size:7px;margin-top:4px}.sidebar-bottom,.course-label{display:none}nav{flex-direction:row;overflow-x:auto;padding-top:17px;gap:5px;scrollbar-width:none}.nav-link{white-space:nowrap;min-height:36px;padding:8px 11px;font-size:10px;gap:6px}.nav-link svg{width:14px;height:14px}.nav-count{font-size:8px}.workspace{margin-left:0}.topbar{height:48px;padding:0 22px;font-size:10px}.daily{font-size:9px}.avatar{display:none}.top-actions{gap:0}main{padding:27px 21px 30px;min-height:65vh}h1{font-size:31px}.eyebrow{font-size:9px}.intro{font-size:12px}.hero{margin-top:24px;min-height:265px;grid-template-columns:1.4fr 1fr;border-radius:17px}.hero-content{padding:23px}.hero h2{font-size:30px}.hero p{font-size:11px}.hero-art{padding:0;min-width:0;overflow:hidden}.hero-art svg{height:215px;min-width:215px;margin-left:15px}.hero .pill{font-size:8px;margin-bottom:13px}.hero-art .art-note{right:15px;bottom:24px;font-size:7px}.metrics{gap:8px;margin-bottom:25px}.metric{padding:12px 9px;gap:9px;border-radius:11px}.metric-icon{display:none}.metric strong{font-size:22px}.metric small{font-size:9px}.home-grid{gap:15px}.path{padding:0 16px}.path-item{padding:16px 0;gap:11px}.path-info h3{font-size:12px}.path-info p{font-size:10px}.section-heading h2{font-size:18px}.home-bottom{font-size:10px}.footer{font-size:8px;padding:12px 22px 22px;flex-wrap:wrap}.footer-right{display:none}.two-col,.rule-grid{grid-template-columns:1fr}.panel{padding:22px}.options{grid-template-columns:1fr}.question{font-size:24px}.question-panel{padding:24px 20px}.question-meta{font-size:9px;margin-bottom:23px}.controls{margin:20px 0;gap:10px}.control{min-width:140px}.answer-row{flex-direction:column}.session-footer{align-items:stretch}.session-footer .btn{font-size:11px}.flash-card{padding:30px 24px;min-height:310px}.flash-card .flash-word{font-size:30px}.flash-footer button{min-width:0;flex:1}.word-row{grid-template-columns:1fr 30px}.word-row .word-ru{grid-column:1;grid-row:2}.word-row .icon-btn{grid-column:2;grid-row:1}.word-row{gap:3px}.word-row strong{font-size:14px}.word-row p{font-size:12px}.segmented button{padding:8px 10px;font-size:10px}.dialog-side{display:block}.dialog-side .tiny{max-width:none}.recorder{margin-top:15px;padding-top:15px;border-top:1px solid var(--line)}.question-panel .bubble .line{font-size:18px}.dialog-options .option{font-size:12px}.notice{font-size:11px}.result{padding:30px 23px}.title-row{align-items:start}.title-row .text-link{white-space:nowrap}.total-count{font-size:10px}th,td{padding:10px;font-size:12px}.rule{padding:21px}.session-top{font-size:10px}.page-title{margin-bottom:23px}.checklist-top{align-items:start}.checklist-top h2{font-size:19px}.home-bottom a{white-space:normal;min-width:80px}.path-item .btn{padding:8px;font-size:9px}.dialog-step{font-size:10px}}
@media(max-width:420px){.hero{grid-template-columns:1fr;min-height:0}.hero-art{position:absolute;right:-65px;bottom:-23px;width:190px;opacity:.19;pointer-events:none}.hero-content{padding:25px}.hero h2{font-size:33px;max-width:240px}.hero p{max-width:260px}.hero-art .art-note{display:none}.hero .btn{position:relative}.breadcrumb{gap:8px}.daily{font-size:8px}.btn{padding:12px 15px}.metric strong{font-size:21px}.metric small{font-size:8px}.controls .control{min-width:125px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important;scroll-behavior:auto!important}}

/* Theme colors stay separate from layout so every study mode uses the same palette. */
:root[data-theme="dark"]{color-scheme:dark;--paper:#111916;--white:#1b2721;--ink:#e4ebdf;--muted:#a5b1a0;--line:#354439;--light:#26352a;--solid:#315d47;--accent:#bedaa3;--red:#efb0a5}
.skip,.btn-lime,.path-item:first-child .step-num,.result-icon{color:var(--on-lime)}
.theme-toggle{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:36px;padding:8px 11px;border:1px solid var(--line);border-radius:9px;background:var(--white);color:var(--ink);font-size:10px;white-space:nowrap;flex-shrink:0}
.theme-toggle:hover{background:var(--light)}
.theme-toggle svg{width:17px;height:17px}
.theme-moon,:root[data-theme="light"] .theme-sun{display:none}
:root[data-theme="light"] .theme-moon{display:block}
.top-actions{gap:14px}
.topbar{gap:12px}
.breadcrumb{min-width:0;align-items:center}
.breadcrumb strong{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.top-actions{flex-shrink:0}
:root[data-theme="dark"] .sidebar{background:#151f1a}
:root[data-theme="dark"] .hero{background:#203d32}
:root[data-theme="dark"] .metric{background:#19241e}
:root[data-theme="dark"] :is(.metric-icon,.avatar,.segmented,.nav-count,.accent-keys button,.icon-btn){background:#26352a}
:root[data-theme="dark"] :is(.note-card,.dialog-side){background:#263529}
:root[data-theme="dark"] :is(th,.bubble,.example,.progress-bar){background:#223026}
:root[data-theme="dark"] .highlight-row td{background:#2b3c2b}
:root[data-theme="dark"] .notice{background:#342e23}
:root[data-theme="dark"] .btn-warm{background:#493b2a;color:#efd4a8}
:root[data-theme="dark"] .option:hover:not(:disabled){background:#2b3c2b;border-color:#8baa73}
:root[data-theme="dark"] :is(.option.correct,.feedback){background:#243b2b;border-color:#8baa73;color:#daebcf}
:root[data-theme="dark"] :is(.option.incorrect,.feedback.bad){background:#3d2926;border-color:#c18d82;color:#f0c3b9}
:root[data-theme="dark"] :is(.option .key,.dialog-step b,.recorder){border-color:var(--line)}
:root[data-theme="dark"] .dialog-step.done b{background:#bedaa3;color:#243d34;border-color:#bedaa3}
:root[data-theme="dark"] .recording{color:#f0a69b}
:root[data-theme="dark"] .path-item:hover .path-info h3{color:var(--accent)}
:root[data-theme="dark"] .checklist input{accent-color:#bedaa3}
.option:disabled{opacity:1}
.option:disabled:not(.correct):not(.incorrect){opacity:.6}
input::placeholder,textarea::placeholder{color:var(--muted);opacity:1}
@media(max-width:930px){.theme-label{display:none}.theme-toggle{width:36px;padding:8px}}
@media(max-width:720px){.top-actions{gap:9px}.breadcrumb{gap:9px}}