:root{--bg:#f7f7f3;--paper:#fff;--ink:#202824;--muted:#737b74;--line:#e3e7de;--soft:#eff1eb;--blue:#366cbd;--blue-bg:#edf3fc;--orange:#aa6425;--orange-bg:#fcf3e8;--green:#417353;--green-bg:#edf5ee;--violet:#c2aff9;--shadow:0 12px 40px #20342808;--radius:22px;--header:76px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.6 ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}button,input,textarea,select{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:wait;opacity:.5}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #7e93ed;outline-offset:4px}button{border:0}a{color:inherit;text-decoration:none}svg{vertical-align:middle;flex:none}h1,h2,h3,p{margin:0}button svg{width:18px;height:18px}button{color:inherit} [hidden]{display:none!important}
.skip{position:fixed;left:20px;top:-100px;z-index:200;background:var(--paper);padding:12px}.skip:focus{top:12px}.topbar{height:var(--header);position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}.top-inner{height:100%;max-width:1240px;padding:0 36px;margin:auto;display:flex;align-items:center;gap:36px}.brand{display:flex;align-items:center;gap:11px}.logo{width:34px;height:34px}.brand strong{display:block;font-size:16px;letter-spacing:-.6px;line-height:1.2}.brand small{font-size:10px;color:var(--muted);letter-spacing:.1em}.nav{display:flex;gap:6px;margin:auto}.nav a{font-size:12px;display:flex;align-items:center;gap:8px;padding:8px 13px;border-radius:50px;white-space:nowrap;transition:.2s}.nav a i{font-style:normal;font-size:10px;font-weight:700}.nav a[data-zone="flow"]{--zone:var(--blue);--zone-bg:var(--blue-bg)}.nav a[data-zone="echo"]{--zone:var(--orange);--zone-bg:var(--orange-bg)}.nav a[data-zone="weave"]{--zone:var(--green);--zone-bg:var(--green-bg)}.nav a.active{background:var(--zone-bg,var(--soft));color:var(--zone,var(--ink))}.preview-tag{font-size:10px;letter-spacing:.08em;color:var(--muted);border:1px solid var(--line);padding:5px 10px;border-radius:5px;white-space:nowrap}.theme-button{background:transparent;padding:7px;border-radius:8px;color:var(--muted)}
main{max-width:1240px;margin:auto;padding:40px 36px 80px}.intro{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:24px}.eyebrow{text-transform:uppercase;font-size:10px;letter-spacing:.13em;font-weight:700;color:var(--muted);margin-bottom:8px}h1{font-size:34px;line-height:1.25;letter-spacing:-1.4px;font-weight:650}.intro p{margin-top:8px;font-size:13px;color:var(--muted)}.source-strip{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:13px 18px;display:flex;align-items:center;gap:14px;margin-bottom:34px}.source-dot{width:9px;height:9px;border-radius:50%;background:var(--green);box-shadow:0 0 0 4px var(--green-bg);flex:none}.source-strip strong{font-size:13px;line-height:1.4;display:block}.source-strip .meta{font-size:11px;color:var(--muted);margin-top:2px}.source-strip .source-label{margin-left:auto;font-size:10px;color:var(--green);background:var(--green-bg);padding:4px 10px;border-radius:40px;white-space:nowrap}
.btn{min-height:40px;background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:9px 15px;font-size:12px;font-weight:600;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:background .2s,transform .2s}.btn:hover:not(:disabled){background:var(--soft);transform:translateY(-1px)}.btn.primary{background:var(--zone,var(--ink));color:#fff;border-color:transparent}.btn.primary:hover{filter:brightness(1.08);background:var(--zone,var(--ink))}.btn.quiet{background:transparent;border-color:transparent;color:var(--muted);font-weight:500}.btn.compact{min-height:32px;padding:6px 10px;font-size:11px}.button-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.separator{height:62px;display:flex;align-items:center;padding-left:28px}.separator:before{content:"";height:100%;width:1px;background:linear-gradient(var(--line),var(--line));display:block}.separator span{font-size:11px;color:var(--muted);margin-left:24px;background:var(--bg);padding:5px 0}.zone{--zone:var(--blue);--zone-bg:var(--blue-bg);scroll-margin-top:96px}.zone.echo{--zone:var(--orange);--zone-bg:var(--orange-bg)}.zone.weave{--zone:var(--green);--zone-bg:var(--green-bg)}.zone-head{display:flex;align-items:center;gap:17px;margin-bottom:20px}.zone-number{display:grid;place-items:center;width:55px;height:55px;border-radius:16px;color:var(--zone);background:var(--zone-bg);font-size:22px;font-weight:600;letter-spacing:-1px;flex:none}.zone-head h2{font-size:24px;font-weight:650;letter-spacing:-.8px;line-height:1.3}.zone-head p{font-size:12px;color:var(--muted);margin-top:4px}.zone-head .zone-label{margin-left:auto;color:var(--zone);font-size:10px;letter-spacing:.12em;text-transform:uppercase;font-weight:700;border-bottom:1px solid color-mix(in srgb,var(--zone) 35%,transparent);padding-bottom:4px}
.flow-grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(290px,.9fr);gap:20px}.media-panel{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}.player-surface{aspect-ratio:16/9;background:#202820;position:relative;overflow:hidden}.player-surface video{display:block;width:100%;height:100%;object-fit:contain;background:#111}.player-surface #ytPlayer{width:100%;height:100%}.player-surface #ytPlayer iframe{width:100%;height:100%}.player-empty{position:absolute;inset:0;display:grid;place-content:center;text-align:center;gap:10px;background:radial-gradient(ellipse at 35% 30%,#355046,#1b2926 75%);color:#e8eee9;padding:28px}.player-empty svg{margin:auto;width:44px;height:44px;opacity:.65}.player-empty strong{font-size:18px;font-weight:500}.player-empty p{font-size:12px;color:#adbfb1}.media-caption{padding:20px 24px;min-height:130px}.media-caption .caption-original{font-size:19px;line-height:1.45;letter-spacing:-.35px;font-weight:550}.media-caption .caption-translated{font-size:13px;margin-top:8px;color:var(--muted)}.caption-footer{display:flex;justify-content:space-between;gap:12px;align-items:center;padding:12px 20px;border-top:1px solid var(--line);font-size:11px;color:var(--muted)}.caption-time{font-variant-numeric:tabular-nums;color:var(--blue);font-weight:650}.segmented{display:inline-flex;background:var(--soft);padding:3px;border-radius:9px;gap:2px;flex-wrap:wrap}.segmented button{padding:6px 10px;border-radius:6px;background:transparent;color:var(--muted);font-size:11px}.segmented button[aria-pressed="true"]{background:var(--paper);box-shadow:0 1px 4px #0000000a;color:var(--ink)}
.transcript{border:1px solid var(--line);background:var(--paper);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column}.panel-top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 20px;border-bottom:1px solid var(--line)}.panel-top h3{font-size:13px;font-weight:650}.panel-top small{color:var(--muted);font-size:10px}.cue-list{max-height:370px;overflow:auto;scrollbar-width:thin;scrollbar-color:var(--line) transparent;padding:8px}.cue-item{width:100%;display:grid;grid-template-columns:44px 1fr;gap:10px;padding:14px 12px;text-align:left;background:transparent;border-radius:12px;position:relative;margin:2px 0;color:var(--ink)}.cue-item:hover{background:var(--soft)}.cue-item.active{background:var(--blue-bg)}.cue-item .cue-time{font-size:10px;color:var(--muted);font-variant-numeric:tabular-nums;padding-top:2px}.cue-item.active .cue-time{color:var(--blue)}.cue-item strong{font-size:12px;font-weight:550;line-height:1.5;display:block}.cue-item p{font-size:11px;color:var(--muted);line-height:1.5;margin-top:4px}.transcript-bottom{padding:13px 18px;border-top:1px solid var(--line);margin-top:auto}.transcript-bottom .btn{width:100%;color:var(--blue);background:var(--blue-bg);border-color:transparent}
.focus-panel{background:var(--paper);border:1px solid var(--line);border-top:3px solid var(--zone);border-radius:var(--radius);padding:28px 32px;box-shadow:var(--shadow)}.focus-top{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px}.context-pill{font-size:10px;color:var(--zone);background:var(--zone-bg);padding:5px 10px;border-radius:7px;font-variant-numeric:tabular-nums}.task-tag{font-size:10px;letter-spacing:.1em;font-weight:600;color:var(--muted)}.echo-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(220px,.6fr);gap:40px;align-items:center}.practice-copy{font-size:26px;line-height:1.5;font-weight:550;letter-spacing:-.65px;min-height:80px}.practice-translation{font-size:14px;color:var(--muted);margin-top:10px}.practice-copy.is-hidden{font-size:23px;color:var(--muted);letter-spacing:5px;user-select:none}.wave-orb{height:150px;display:flex;align-items:center;justify-content:center;position:relative}.wave-orb:before{content:"";position:absolute;width:144px;height:144px;border-radius:50%;background:radial-gradient(circle,var(--orange-bg),transparent 70%)}.wave-bars{display:flex;align-items:center;gap:5px;height:62px;z-index:1}.wave-bars i{display:block;width:4px;height:var(--bar);background:var(--orange);opacity:.45;border-radius:5px}.wave-bars.playing i{animation:wave .85s ease-in-out infinite alternate;animation-delay:var(--delay);opacity:.8}.echo-side{text-align:center;border-left:1px solid var(--line);padding-left:35px}.echo-side small{color:var(--muted);font-size:11px}.practice-actions{margin-top:24px}.practice-actions .btn.primary{min-width:154px}.recording{background:#b7453f!important;color:white!important}.record-result{margin-top:14px}.record-result audio{height:34px;max-width:100%;display:block}.practice-note{color:var(--muted);font-size:11px;margin-top:14px;min-height:18px}.memory-check{display:flex;align-items:center;gap:10px;padding-top:18px;margin-top:24px;border-top:1px solid var(--line);flex-wrap:wrap}.memory-check small{font-size:11px;color:var(--muted);margin-right:auto}.memory-check .btn[aria-pressed="true"]{color:var(--zone);background:var(--zone-bg);border-color:color-mix(in srgb,var(--zone) 30%,transparent)}.next-link{display:flex;justify-content:end;margin-top:15px;color:var(--zone);font-size:12px;gap:8px;align-items:center}.next-link a{display:flex;align-items:center;gap:8px}
.write-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(230px,.7fr);gap:32px}.write-main label{font-weight:600;font-size:16px;display:block;margin-bottom:7px}.write-main .write-hint{font-size:12px;color:var(--muted);margin-bottom:18px}.write-main textarea{width:100%;min-height:185px;resize:vertical;border:1px solid var(--line);border-radius:13px;background:var(--bg);padding:19px;color:var(--ink);font-size:15px;line-height:1.8}.write-meta{display:flex;justify-content:space-between;margin:7px 0 17px;color:var(--muted);font-size:10px}.write-reference{border-left:1px solid var(--line);padding-left:30px}.write-reference .ref-title{font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:18px}.reference-copy{font-size:14px;font-weight:550;line-height:1.7}.reference-translation{color:var(--muted);font-size:12px;margin-top:8px}.write-reference .btn{margin-top:17px}.self-check{margin-top:24px;padding-top:20px;border-top:1px solid var(--line)}.self-check p{font-size:11px;color:var(--muted)}.self-check label{display:flex;align-items:center;gap:8px;font-size:12px;margin-top:10px}.self-check input{accent-color:var(--green);width:15px;height:15px}.saved-note{font-size:12px;margin-top:12px;color:var(--green)}
.immersion{margin-top:62px;scroll-margin-top:96px}.immersion-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:22px}.immersion-head .eyebrow{color:#8064b0}.immersion-head h2{font-size:27px;letter-spacing:-1px;line-height:1.3}.immersion-head p{font-size:12px;color:var(--muted);margin-top:8px}.shuffle-chip{font-size:10px;padding:5px 10px;border:1px solid var(--line);border-radius:50px;display:flex;align-items:center;gap:6px;color:var(--muted);white-space:nowrap}.immersion-panel{background:#22222b;color:#f8f7fc;border-radius:28px;overflow:hidden;box-shadow:0 25px 50px #33284a12}.immersion-toolbar{padding:20px 26px;display:flex;justify-content:space-between;align-items:center;gap:15px;border-bottom:1px solid #ffffff12}.immersion-toolbar .segmented{background:#ffffff09}.immersion-toolbar .segmented button{color:#aba7ba}.immersion-toolbar .segmented button[aria-pressed="true"]{background:#4b415e;color:#f4edff;box-shadow:none}.audio-source-label{display:flex;align-items:center;gap:7px;font-size:10px;color:#b8b5c6}.audio-source-label i{width:5px;height:5px;background:#a2c7a5;border-radius:50%}.text-stage{height:470px;position:relative;overflow:hidden;display:grid;place-items:center;isolation:isolate;background:radial-gradient(ellipse at 50% 47%,#66507f35,transparent 64%)}.text-stage:before{content:"";position:absolute;width:370px;height:370px;border-radius:50%;border:1px solid #ffffff04;left:50%;top:50%;transform:translate(-50%,-50%)}.text-stage:after{content:"";position:absolute;width:540px;height:540px;border-radius:50%;border:1px solid #ffffff03;left:50%;top:50%;transform:translate(-50%,-50%)}.floating-context{position:absolute;width:270px;color:#cbc5d5;opacity:.22;font-size:13px;line-height:1.5;pointer-events:none;filter:blur(.3px);transition:opacity .7s,transform .9s;overflow:hidden;max-height:70px;z-index:-1;animation:drift 8s ease-in-out infinite alternate}.floating-context .float-translated{font-size:11px;opacity:.7;margin-top:4px}.floating-context:nth-child(1){top:35px;left:5%;transform:rotate(-3deg);animation-delay:-2s}.floating-context:nth-child(2){top:35px;right:3%;text-align:right;transform:rotate(2deg);animation-delay:-4s}.floating-context:nth-child(3){bottom:55px;left:4%;transform:rotate(2deg);animation-delay:-1s}.floating-context:nth-child(4){bottom:48px;right:4%;text-align:right;transform:rotate(-2deg);animation-delay:-6s}.floating-context:nth-child(5){bottom:18px;left:38%;font-size:11px;opacity:.1}.active-sentence{text-align:center;max-width:820px;width:100%;padding:22px 55px;z-index:2}.active-sentence .sentence-time{color:var(--violet);font-size:10px;letter-spacing:.1em;font-variant-numeric:tabular-nums;margin-bottom:16px}.active-sentence .sentence-original{font-size:clamp(24px,3.4vw,40px);line-height:1.35;font-weight:550;letter-spacing:-1px;text-shadow:0 4px 35px #c9b2ef28;overflow-wrap:anywhere}.active-sentence .sentence-translated{font-size:clamp(15px,1.8vw,21px);line-height:1.5;color:#bab1cc;margin-top:15px;overflow-wrap:anywhere}.active-sentence.translation-mode .sentence-translated{font-size:clamp(24px,3.4vw,40px);line-height:1.35;color:#f8f7fc;font-weight:550;letter-spacing:-1px;margin-top:0}.active-sentence.arriving{animation:rise .7s cubic-bezier(.18,.7,.16,1) both}.stage-status{position:absolute;left:20px;right:20px;bottom:23px;text-align:center;font-size:10px;letter-spacing:.04em;color:#9990aa;z-index:3}.stage-status.live{color:#c8b5f3}.stage-progress{height:2px;background:#ffffff08}.stage-progress span{display:block;height:100%;width:0;background:#b9a1df;transition:width .1s linear}.immersion-controls{padding:19px 26px;display:flex;align-items:center;gap:12px;flex-wrap:wrap;background:#ffffff03}.immersion-controls .btn{color:#e8e3ef;background:#ffffff05;border-color:#ffffff14}.immersion-controls .btn.primary{background:#d6c3f0;color:#30253e;border-color:transparent;min-width:160px}.immersion-controls .btn:hover:not(:disabled){background:#ffffff10}.immersion-controls .btn.primary:hover:not(:disabled){background:#e5d8f6}.settings-inline{margin-left:auto;display:flex;gap:16px;flex-wrap:wrap}.settings-inline label{font-size:10px;color:#aaa1b9;display:flex;align-items:center;gap:7px}.settings-inline select{background:#36323f;color:#e3daed;border:1px solid #ffffff12;border-radius:7px;padding:6px 8px;font-size:11px}.round-count{color:#a49aae;font-size:10px;margin-left:2px}.immersion-footnote{display:flex;justify-content:space-between;gap:20px;color:var(--muted);font-size:10px;padding:14px 4px 0}.immersion-footnote a{text-decoration:underline;text-underline-offset:3px}
.shared-rail{position:fixed;bottom:18px;left:50%;transform:translateX(-50%);z-index:45;background:color-mix(in srgb,var(--paper) 94%,transparent);backdrop-filter:blur(20px);border:1px solid var(--line);box-shadow:0 5px 30px #2238281a;border-radius:16px;display:flex;align-items:center;gap:12px;padding:10px 15px;width:min(670px,calc(100% - 36px));transition:opacity .25s,transform .25s}.shared-rail.is-hidden{opacity:0;pointer-events:none;transform:translate(-50%,15px)}.rail-icon{display:grid;place-items:center;width:34px;height:34px;color:var(--blue);background:var(--blue-bg);border-radius:9px;flex:none}.rail-copy{flex:1;min-width:0}.rail-copy strong{font-size:11px;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.rail-copy small{font-size:10px;color:var(--muted);font-variant-numeric:tabular-nums}.shared-rail .btn{min-height:34px;padding:7px 10px;font-size:11px}.page-footer{margin-top:45px;padding-top:24px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:20px;color:var(--muted);font-size:10px}.notice{font-size:12px;color:var(--muted);margin:12px 0 0}.toast{position:fixed;bottom:93px;left:50%;transform:translate(-50%,10px);background:var(--ink);color:var(--paper);padding:12px 20px;border-radius:12px;box-shadow:var(--shadow);font-size:12px;z-index:100;max-width:min(520px,90%);opacity:0;pointer-events:none;transition:.25s}.toast.show{opacity:1;transform:translate(-50%,0)}
dialog{background:var(--paper);color:var(--ink);border:1px solid var(--line);border-radius:24px;box-shadow:0 24px 80px #0003;max-width:560px;width:calc(100% - 28px);padding:26px;max-height:90vh;overflow:auto}dialog::backdrop{background:#17231e65;backdrop-filter:blur(4px)}.dialog-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:20px}.dialog-head h2{font-size:20px;letter-spacing:-.5px}.dialog-close{background:var(--soft);width:30px;height:30px;border-radius:50%;font-size:21px;line-height:1}.source-option{border-top:1px solid var(--line);padding:18px 0}.source-option h3{font-size:13px;margin-bottom:7px}.source-option p{font-size:11px;color:var(--muted);margin-bottom:12px}.source-option label{font-size:11px;color:var(--muted);display:block;margin-bottom:5px}.source-option input[type="url"],.source-option input[type="text"]{width:100%;border:1px solid var(--line);border-radius:9px;background:var(--bg);padding:10px 12px;color:var(--ink);font-size:13px}.source-option input[type="file"]{max-width:100%;font-size:11px}.source-option .btn{margin-top:10px}.track-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.modal-status{font-size:12px;color:var(--muted);min-height:25px;margin-top:10px}.error{color:#b1443a!important}.sample-note{font-size:10px;color:var(--muted);margin-top:14px}
@keyframes wave{from{transform:scaleY(.35)}to{transform:scaleY(1.15)}}@keyframes rise{from{opacity:0;transform:translateY(18px) scale(.88);filter:blur(5px)}to{opacity:1;transform:translateY(0) scale(1);filter:blur(0)}}@keyframes drift{from{translate:0 -5px}to{translate:0 6px}}
body.dark{--bg:#171e1b;--paper:#202925;--ink:#e3e9e3;--muted:#a0aca2;--line:#34413a;--soft:#2b3630;--blue:#91b9ef;--blue-bg:#263d54;--orange:#e7b781;--orange-bg:#413628;--green:#99c5a3;--green-bg:#2b4031;--shadow:0 12px 40px #00000012}body.dark .btn.primary{color:#16211c}body.dark .immersion-panel{border:1px solid #4b405a}body.dark .toast{background:#e3e9e3;color:#202925}
@media(min-width:1500px){main{padding-top:50px}.cue-list{max-height:390px}}
@media(max-width:950px){.top-inner{gap:18px;padding:0 24px}.brand small{display:none}.nav a{padding:8px 10px;font-size:11px}.preview-tag{display:none}main{padding:30px 24px 80px}.flow-grid{grid-template-columns:minmax(0,1.1fr) minmax(250px,.8fr);gap:16px}.media-caption{padding:16px}.media-caption .caption-original{font-size:16px}.focus-panel{padding:25px}.echo-grid{gap:20px}.practice-copy{font-size:23px}.echo-side{padding-left:20px}.write-grid{gap:24px}.write-reference{padding-left:24px}.floating-context{width:200px;font-size:12px}.active-sentence{padding:20px 45px}.text-stage{height:450px}}
@media(max-width:700px){:root{--header:108px}.top-inner{height:108px;position:relative;flex-wrap:wrap;padding:12px 18px;gap:5px;align-content:flex-start}.brand strong{font-size:15px}.brand .logo{width:29px;height:29px}.theme-button{margin-left:auto}.nav{order:3;width:100%;justify-content:space-between;gap:0;margin-top:6px}.nav a{padding:7px 9px;font-size:10px;gap:5px}.nav a:last-child i{display:none}.intro{align-items:start}h1{font-size:27px;letter-spacing:-1px}.intro p{font-size:11px}.intro .btn{font-size:11px;padding:9px 11px;white-space:nowrap}.source-strip{padding:12px;gap:11px;align-items:start;margin-bottom:28px}.source-strip .source-dot{margin-top:5px}.source-strip .source-label{display:none}.source-strip strong{font-size:12px}.source-strip .meta{font-size:10px}main{padding:28px 18px 85px}.zone-head{gap:12px;margin-bottom:16px}.zone-number{width:46px;height:46px;border-radius:13px;font-size:19px}.zone-head h2{font-size:22px}.zone-head p{font-size:11px}.zone-label{display:none}.flow-grid{grid-template-columns:1fr}.cue-list{max-height:265px}.panel-top{padding:14px 16px}.cue-item{padding:12px}.media-caption{min-height:100px;padding:18px}.caption-footer{padding:11px 14px;flex-wrap:wrap}.separator{height:45px;padding-left:23px}.separator span{font-size:10px;margin-left:18px}.focus-panel{padding:20px}.echo-grid{grid-template-columns:1fr;gap:10px}.echo-side{border-left:0;border-top:1px solid var(--line);padding:10px 0 0;display:flex;align-items:center;justify-content:center;gap:16px}.wave-orb{height:55px;width:100px}.wave-orb:before{width:95px;height:95px}.wave-bars{height:34px}.wave-bars i{width:3px;max-height:30px}.practice-copy{font-size:22px;min-height:60px;letter-spacing:-.5px}.practice-translation{font-size:13px}.practice-actions .btn{flex:1}.practice-actions .btn.primary{min-width:140px}.memory-check{margin-top:18px}.memory-check small{width:100%}.write-grid{grid-template-columns:1fr;gap:25px}.write-reference{border-left:0;border-top:1px solid var(--line);padding:21px 0 0}.write-reference .ref-title{margin-bottom:10px}.self-check{margin-top:16px;padding-top:16px}.write-main textarea{min-height:160px;font-size:16px}.immersion{margin-top:45px}.immersion-head{align-items:start}.immersion-head h2{font-size:24px}.shuffle-chip{display:none}.immersion-panel{border-radius:22px}.immersion-toolbar{padding:16px;flex-wrap:wrap;gap:10px}.audio-source-label{font-size:9px}.text-stage{height:440px}.active-sentence{padding:20px 24px;max-width:100%}.active-sentence .sentence-original{font-size:26px;letter-spacing:-.6px}.active-sentence .sentence-translated{font-size:16px}.active-sentence.translation-mode .sentence-translated{font-size:26px}.floating-context{width:150px;font-size:10px;max-height:58px}.floating-context .float-translated{font-size:10px}.floating-context:nth-child(1){top:25px}.floating-context:nth-child(2){top:28px}.floating-context:nth-child(3){bottom:57px}.floating-context:nth-child(4){bottom:57px}.floating-context:nth-child(5){display:none}.immersion-controls{padding:16px;gap:8px}.immersion-controls .btn.primary{flex:1;min-width:148px}.settings-inline{margin:5px 0 0;width:100%;justify-content:space-between;gap:6px}.settings-inline label{font-size:10px}.round-count{margin-left:auto}.immersion-footnote{flex-direction:column;gap:5px}.shared-rail{bottom:10px;padding:10px;gap:9px}.rail-icon{display:none}.rail-copy strong{max-width:180px}.shared-rail .btn{font-size:10px;min-height:34px}.page-footer{font-size:9px;margin-top:35px}.track-grid{grid-template-columns:1fr}}
@media(max-width:360px){main{padding-left:12px;padding-right:12px}.top-inner{padding-left:12px;padding-right:12px}.nav a{padding:6px;font-size:9px}.intro .btn{font-size:10px;padding:8px}.segmented button{padding:6px 8px}.immersion-toolbar .segmented{width:100%;justify-content:space-between}.focus-panel{padding:17px}.rail-copy strong{max-width:125px}.active-sentence .sentence-original,.active-sentence.translation-mode .sentence-translated{font-size:23px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.floating-context{filter:none}}

.nav{min-width:0;overflow-x:auto;scrollbar-width:none}.nav a{flex-shrink:0}.brand,.theme-button,.account-link{flex-shrink:0}.btn:disabled,button:disabled{opacity:.42;cursor:not-allowed;transform:none}.entry-panel{border:1px solid var(--line);border-radius:18px;padding:22px 25px;background:var(--paper);margin:0 0 32px}.entry-panel h2{font-size:18px;margin:0 0 7px}.entry-panel p{margin:0 0 16px;color:var(--muted);max-width:740px}.entry-panel[hidden]{display:none}.account-link{font-size:11px;color:var(--muted);white-space:nowrap}.source-strip>div{min-width:0}.source-strip strong{overflow-wrap:anywhere}.top-inner{gap:20px}.cue-item strong,.cue-item p{white-space:pre-line}html[dir=rtl] .echo-side,html[dir=rtl] .write-reference{border-left:0;border-right:1px solid var(--line);padding-right:24px;padding-left:0}html[dir=rtl] .nav{direction:rtl}html[dir=rtl] .floating-context,html[dir=rtl] .caption-original,html[dir=rtl] .caption-translated{text-align:start}.caption-original,.caption-translated,.practice-copy,.practice-translation,.sentence-original,.sentence-translated,.cue-item strong,.cue-item p{unicode-bidi:plaintext}.source-label{max-width:190px;white-space:normal}@media(max-width:700px){.nav{justify-content:flex-start;max-width:100%}.entry-panel{padding:18px}.top-inner{gap:12px}.account-link{margin-left:auto;font-size:10px}.source-label{max-width:110px}.source-strip{flex-wrap:wrap}}