@charset "UTF-8";
:root{--green:#234f47;--deep:#183d36;--mint:#e9f0ea;--paper:#f8f7f2;--ink:#243a34;--muted:#737d76;--line:#e1e5dc;--gold:#c0924c;--white:#fff;--radius:22px;font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}
*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:wait;opacity:.55}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #bc8c3e;outline-offset:5px}[hidden]{display:none!important}a{color:inherit}button{touch-action:manipulation}button:hover{filter:brightness(.96)}button{transition:background .15s,filter .15s,transform .15s}h1,h2,h3,h4,p{margin:0}h1,h2,h3{letter-spacing:.04em}main{max-width:1180px;margin:auto;padding:0 42px}.topbar{height:100px;max-width:1264px;padding:0 42px;margin:auto;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-size:21px;font-weight:650;letter-spacing:-.5px}.brand small{display:block;font-size:10px;letter-spacing:.14em;color:var(--muted);font-weight:500;margin-top:5px}.brand-icon{height:41px;width:41px;border-radius:12px;background:var(--green);display:flex;align-items:center;justify-content:center;gap:3px;flex:none}.brand-icon i{display:block;width:3px;border-radius:8px;background:#f0eee3;height:11px}.brand-icon i:nth-child(2),.brand-icon i:nth-child(4){height:21px}.brand-icon i:nth-child(3){height:28px}.install-button{border:1px solid #d8dfd6;background:transparent;color:var(--green);border-radius:30px;font-size:12px;font-weight:600;padding:12px 17px}.intro{position:relative;display:flex;align-items:center;justify-content:space-between;min-height:304px;padding:43px 35px 39px 0;isolation:isolate}.eyebrow{font-size:10px;letter-spacing:.19em;color:var(--green);font-weight:700}.intro h1{font-size:35px;line-height:1.6;font-weight:650;margin:12px 0 10px}.intro-copy{font-size:12px;line-height:1.95;color:var(--muted)}.progress-card{display:flex;align-items:center;gap:21px;z-index:1;margin-right:25px}.progress-ring{height:102px;width:102px;background:conic-gradient(var(--green) var(--progress,0%),#e2e7dc 0);border-radius:50%;padding:5px}.progress-ring>span{display:flex;align-items:baseline;justify-content:center;padding-top:23px;border-radius:50%;width:100%;height:100%;background:var(--paper)}.progress-ring strong{font-size:33px;font-weight:500;letter-spacing:-1px}.progress-ring small{font-size:11px;color:var(--muted);margin-left:5px}.progress-card p{font-size:14px;font-weight:600}.progress-card p>span{display:block;font-size:11px;color:var(--muted);font-weight:400;margin-top:9px}.intro-decoration{position:absolute;right:0;bottom:5px;width:320px;height:260px;z-index:-1;opacity:.32;display:flex;justify-content:center;align-items:center;gap:17px;overflow:hidden;mask-image:linear-gradient(90deg,transparent,#000)}.intro-decoration span{width:15px;height:70%;border-radius:30px;background:#e4e8dc;transform:rotate(25deg)}.intro-decoration span:nth-child(2n){height:98%}.intro-decoration span:nth-child(3n){height:40%}.workspace{display:grid;grid-template-columns:254px minmax(0,1fr);gap:33px;padding-top:10px}.library{padding-top:8px}.section-label{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:17px}.section-label h2{font-size:13px;font-weight:650}.section-label>span{font-size:8px;letter-spacing:.12em;color:#929a91}.question-list{display:grid;gap:12px}.question-button{position:relative;width:100%;border:1px solid var(--line);background:#fbfbf8;border-radius:15px;padding:19px 16px;text-align:left;display:flex;gap:13px;align-items:center;min-height:95px;color:var(--ink)}.question-button.active{background:var(--green);color:#fff;border-color:var(--green);box-shadow:0 6px 16px #234f4715}.question-number{font-size:13px;align-self:flex-start;padding-top:4px;color:var(--gold);font-variant-numeric:tabular-nums}.active .question-number{color:#c8d6b8}.question-button strong{display:block;font-size:18px;font-weight:550;letter-spacing:.1em}.question-button small{display:block;color:var(--muted);font-size:10px;margin-top:7px}.question-button.active small{color:#c8d6d0}.question-check{margin-left:auto;font-size:13px;opacity:.7}.guide-note{display:flex;gap:12px;padding:27px 10px}.guide-note p{font-size:10px;line-height:1.9;color:var(--muted)}.small-wave{font-size:23px;color:#9baa96}.practice{background:white;border:1px solid var(--line);border-radius:24px;padding:29px 31px 31px;min-width:0;box-shadow:0 7px 32px #253c2f03}.practice-heading{display:flex;justify-content:space-between;align-items:center;gap:12px}.practice-heading h2{font-size:28px;font-weight:600;margin-top:8px}.practice-heading>div>p:last-child{font-size:11px;color:var(--muted);margin-top:9px}.language-tag{font-size:10px;white-space:nowrap;color:var(--muted);border:1px solid var(--line);border-radius:20px;padding:9px 12px}.language-tag span{padding:0 7px;color:#a4ad9f}.steps{list-style:none;padding:0;margin:28px 0 24px;display:flex;align-items:center;gap:12px}.steps li{display:flex;align-items:center;gap:7px;font-size:11px;color:#a3aaa3;flex:1}.steps li:not(:last-child):after{content:"";height:1px;background:var(--line);flex:1;margin-left:4px}.steps li>span{border:1px solid #dbe1d7;border-radius:50%;width:22px;height:22px;display:grid;place-items:center;font-size:10px;flex:none}.steps li[aria-current=step]{color:var(--green);font-weight:650}.steps li[aria-current=step]>span{border-color:var(--green);background:var(--green);color:white}.steps li.done{color:var(--green)}.player-card{border-radius:18px;background:#f1f5ef;padding:20px 24px 15px;text-align:center}.player-top{display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:10px}.tiny-label{font-size:9px;font-weight:700;letter-spacing:.15em}.player-top .tiny-label{color:#718b70}.waveform{display:flex;align-items:center;justify-content:center;gap:5px;height:76px;margin-top:14px}.waveform span{height:var(--height);width:4px;border-radius:6px;background:#a0b69a;opacity:.6}.playing .waveform span{animation:wave 1s ease-in-out infinite alternate;animation-delay:var(--delay);background:#628963}.player-prompt{font-size:11px;color:#647863;margin:1px 0 18px;min-height:1.6em}.audio-controls{display:flex;align-items:center;justify-content:center;gap:13px}.play-button{display:flex;justify-content:center;align-items:center;gap:12px;min-width:176px;padding:15px 24px;border:0;border-radius:40px;background:var(--green);color:white;font-size:13px;box-shadow:0 4px 10px #234f4712}.play-button #play-icon{font-size:12px;width:15px}.restart-button{border:1px solid #d8e1d3;background:transparent;border-radius:40px;color:#6a8168;padding:12px 13px;font-size:19px}.restart-button span{font-size:10px;vertical-align:middle;padding-left:3px}.seek-row{display:flex;gap:10px;align-items:center;margin:23px 0 16px;font-size:10px;font-variant-numeric:tabular-nums;color:#72816d}.seek-row input{appearance:none;-webkit-appearance:none;min-width:0;flex:1;height:4px;border-radius:10px;accent-color:var(--green);background:#d8e1d4;cursor:pointer}.seek-row input::-webkit-slider-thumb{appearance:none;-webkit-appearance:none;width:12px;height:12px;border-radius:50%;background:var(--green)}.seek-row input::-moz-range-thumb{width:12px;height:12px;border-radius:50%;background:var(--green);border:0}.player-bottom{border-top:1px solid #dfe7db;padding-top:13px;display:flex;justify-content:space-between;align-items:center;gap:8px;color:#7e897a;font-size:9px}.player-bottom label{display:flex;align-items:center;gap:6px}.player-bottom select{border:1px solid #d9e2d4;background:#f7f9f4;border-radius:7px;padding:5px;color:#546d51;font-size:10px}.notes-heading{display:flex;align-items:center;justify-content:space-between;margin:26px 0 10px;gap:10px}.notes-heading label{font-size:12px;font-weight:600}.notes-heading>span{color:#939b90;font-size:9px}textarea{resize:vertical;display:block;width:100%;min-height:119px;border:1px solid var(--line);border-radius:12px;padding:15px 16px;line-height:1.9;color:var(--ink);background:#fcfcfa;font-size:12px}textarea::placeholder{color:#a1a89b}.notes-help{color:#92998f;font-size:9px;line-height:1.8;margin-top:8px}.answer-locked{display:flex;gap:13px;align-items:center;background:#faf9f5;border:1px dashed #dce1d5;border-radius:13px;padding:20px;margin-top:23px}.answer-locked>span{font-size:27px;color:#aab29e}.answer-locked strong{display:block;font-size:12px;font-weight:550}.answer-locked p{font-size:10px;color:#909888;margin-top:6px}.primary-button,.secondary-button{border-radius:11px;padding:15px 20px;font-size:12px;font-weight:550;display:flex;align-items:center;justify-content:center;gap:24px;min-height:47px}.primary-button{border:1px solid var(--green);background:var(--green);color:white}.secondary-button{border:1px solid var(--line);background:white;color:var(--green)}.primary-button>span{margin-left:auto;font-size:18px;font-weight:400}.translate-panel{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:23px 0 16px}.translate-panel .tiny-label{color:var(--gold)}.translate-panel h3{font-size:15px;margin:7px 0}.translate-panel p:last-child{font-size:10px;line-height:1.8;color:var(--muted)}.timer-box{display:flex;flex-direction:column;align-items:center;flex:none}.timer-box>span{font-size:31px;font-weight:400;font-variant-numeric:tabular-nums;color:var(--green);letter-spacing:.02em}.text-button{border:0;background:transparent;font-size:9px;color:var(--muted);padding:8px}#finish{width:100%}.reveal-panel{margin-top:25px}.reveal-panel p{font-size:11px;line-height:1.9;margin-bottom:13px;color:var(--muted)}.reveal-panel button{width:100%}.answer-panel{margin-top:28px;border-top:1px solid var(--line);padding-top:26px}.answer-heading{display:flex;justify-content:space-between;gap:10px;align-items:center}.answer-heading h3{font-size:21px;margin-top:8px}.check-badge{color:var(--green);background:var(--mint);border-radius:20px;padding:8px 11px;font-size:10px}.answer-hint{font-size:10px;color:var(--muted);line-height:1.9;margin-top:13px}.english-answer{font-family:Georgia,"Times New Roman",serif;font-size:20px;line-height:1.9;color:#2a453e;background:#f4f7f0;border-left:3px solid #aebd99;padding:21px 24px;border-radius:0 13px 13px 0;margin:19px 0}.transcript{border:1px solid var(--line);border-radius:12px;padding:15px;font-size:11px}.transcript summary{cursor:pointer;color:var(--green);font-weight:600}.transcript p{line-height:2.1;font-size:12px;margin-top:15px;color:#636e61}.answer-panel h4{font-size:12px;margin:24px 0 13px}.checklist{display:grid;gap:10px}.checklist label{display:flex;gap:9px;align-items:flex-start;font-size:11px;line-height:1.9;color:#697663}.checklist input{margin-top:4px;accent-color:var(--green);width:15px;height:15px;flex:none}.phrases{margin:0}.phrase-row{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:11px 0;border-bottom:1px solid var(--line);font-size:11px;line-height:1.7}.phrase-row dt{font-weight:600;color:var(--green)}.phrase-row dd{margin:0;color:var(--muted)}.review-actions{display:flex;gap:12px;margin-top:27px}.review-actions button{flex:1}.source-note{font-size:9px;color:#90988a;line-height:1.8;margin-top:20px}.source-note a{text-underline-offset:3px}footer{padding:40px 0 28px;margin-top:20px;color:#939a8e;border-top:1px solid var(--line);font-size:9px;line-height:1.9}footer strong{font-size:12px;color:#6c7b65;font-weight:550}footer p{margin-top:9px}footer a{text-underline-offset:3px}.error{border-radius:10px;padding:12px;background:#fff0eb;color:#9d4835;font-size:11px;line-height:1.8;margin-top:12px}dialog{max-width:440px;width:calc(100% - 32px);border:1px solid var(--line);border-radius:23px;padding:33px;color:var(--ink);box-shadow:0 20px 100px #12382d30}dialog::backdrop{background:#183d3655;backdrop-filter:blur(4px)}dialog h2{font-size:22px;line-height:1.6;margin:15px 0}dialog>p:not(.eyebrow){font-size:12px;line-height:2;margin:14px 0}.dialog-close{position:absolute;right:13px;top:10px;border:0;background:transparent;font-size:25px;color:var(--muted);width:35px;height:35px}.install-note{color:var(--muted)}dialog>.primary-button{width:100%;margin-top:20px}.toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);padding:13px 24px;background:var(--deep);color:white;font-size:12px;border-radius:30px;box-shadow:0 6px 20px #183d3625;z-index:10;max-width:90%;width:max-content}@keyframes wave{from{transform:scaleY(.45);opacity:.5}to{transform:scaleY(1.05);opacity:1}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
@media(min-width:1100px){.library{position:sticky;top:25px;align-self:start}}
@media(max-width:850px){main{padding:0 24px}.topbar{padding:0 24px;height:85px}.intro{min-height:280px;padding-right:0}.intro h1{font-size:30px}.progress-card{gap:12px;margin:0}.progress-card p>span{max-width:95px;line-height:1.8}.progress-ring{height:82px;width:82px}.progress-ring>span{padding-top:17px}.progress-ring strong{font-size:28px}.workspace{grid-template-columns:205px minmax(0,1fr);gap:20px}.practice{padding:25px 22px}.language-tag{display:none}.question-button{padding:17px 13px}.question-button strong{font-size:16px}.section-label>span{display:none}.player-card{padding:18px}.restart-button span{display:none}.play-button{min-width:160px}}
@media(max-width:640px){main{padding:0 18px}.topbar{height:78px;padding:0 18px}.brand{font-size:17px;gap:9px}.brand small{font-size:8px}.brand-icon{height:35px;width:35px;border-radius:10px}.install-button{font-size:10px;padding:10px 11px}.intro{min-height:245px;padding:28px 0;gap:15px}.intro .eyebrow{font-size:8px;letter-spacing:.15em}.intro h1{font-size:27px;line-height:1.55;margin:13px 0 12px}.intro-copy{font-size:10px}.progress-card{display:block;text-align:center;flex:none;margin-right:4px}.progress-ring{width:77px;height:77px;margin:auto}.progress-ring>span{padding-top:16px}.progress-ring strong{font-size:26px}.progress-ring small{font-size:9px;margin-left:4px}.progress-card p{font-size:9px;margin-top:11px}.progress-card p>span{display:none}.intro-decoration{width:180px;height:210px;opacity:.3}.workspace{display:flex;flex-direction:column;gap:20px;padding-top:0}.library{padding:0}.section-label{margin-bottom:11px}.section-label h2{font-size:11px}.section-label>span{display:block;font-size:8px}.question-list{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.question-button{display:block;padding:13px 10px;border-radius:13px;min-height:94px}.question-number{font-size:10px;padding:0;display:block;margin-bottom:6px}.question-button strong{font-size:15px;letter-spacing:.03em}.question-button small{font-size:8px;line-height:1.5;margin-top:6px}.question-check{position:absolute;right:10px;top:12px;font-size:10px}.guide-note{display:none}.practice{padding:23px 17px;border-radius:20px;margin:0 -2px}.practice-heading h2{font-size:25px}.practice-heading .eyebrow{font-size:9px}.practice-heading>div>p:last-child{font-size:10px;line-height:1.8}.language-tag{display:block;font-size:9px;padding:8px}.steps{margin:24px 0 19px;gap:8px}.steps li{font-size:10px;gap:6px}.steps li>span{width:20px;height:20px}.steps li:not(:last-child):after{margin-left:0}.player-card{border-radius:15px;padding:17px 15px 14px}.player-top{font-size:9px}.tiny-label{font-size:8px}.waveform{gap:4px;height:72px}.waveform span{width:3px}.player-prompt{font-size:10px;line-height:1.8;margin-bottom:16px}.play-button{padding:14px 20px;font-size:12px;min-width:168px}.restart-button{padding:9px 13px}.seek-row{margin:20px 0 14px}.player-bottom{font-size:8px}.player-bottom label{gap:3px}.player-bottom select{font-size:9px}.notes-heading{margin-top:23px}textarea{font-size:16px;line-height:1.7;padding:12px;min-height:125px}textarea::placeholder{font-size:11px}.notes-help{font-size:8px}.answer-locked{padding:17px 13px;gap:10px}.answer-locked strong{font-size:11px}.answer-locked p{font-size:9px;line-height:1.8}.translate-panel{gap:8px}.translate-panel h3{font-size:13px;line-height:1.7}.translate-panel p:last-child{font-size:9px}.timer-box>span{font-size:27px}.timer-box .text-button{font-size:8px;padding:7px 0}.english-answer{font-size:19px;padding:17px 19px;line-height:1.9}.phrase-row{font-size:10px;grid-template-columns:1.1fr 1fr}.review-actions{gap:8px}.review-actions button{font-size:10px;padding:13px 10px;gap:9px}.primary-button>span{font-size:16px}.source-note{font-size:8px}footer{margin-top:30px;padding-top:26px;font-size:8px}.footer-dot{display:none}footer p:last-child{max-width:280px}}