:root{--bg:#f4f5f0;--white:#fff;--text:#203c34;--muted:#78867d;--green:#285943;--lime:#d9efad;--line:#e2e7dc;--warm:#f7ede5}*{box-sizing:border-box}body{margin:0;background:var(--bg);font-family:"Segoe UI",Arial,sans-serif;color:var(--text)}button,input,select{font:inherit}button{cursor:pointer}button:disabled{opacity:.4;cursor:default}header{height:84px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 5%}.brand{display:flex;align-items:center;gap:13px;font-size:22px;font-weight:750;color:var(--text);text-decoration:none;letter-spacing:-.8px}.brand-icon{background:var(--green);color:white;border-radius:10px;padding:7px 10px}.header-note{font-size:10px;letter-spacing:2px;color:var(--muted)}.offline{font-size:11px}.offline i{display:inline-block;width:6px;height:6px;border-radius:50%;background:#6d924f;margin-right:7px}main{max-width:1240px;padding:42px 36px 24px;margin:auto}.hero{display:flex;justify-content:space-between;align-items:center;margin-bottom:34px}.eyebrow{font-size:10px;letter-spacing:1.8px;color:var(--muted);font-weight:650}h1{font-size:49px;letter-spacing:-2.2px;line-height:1.15;margin:13px 0 16px;font-weight:650}h1 span{color:#7d926d}.hero p{font-size:13px;color:var(--muted);line-height:1.8}.hero-note{border-left:1px solid #d5ddcd;padding-left:30px;margin-right:25px}.tiny-wave{color:#90a379;letter-spacing:7px;font-size:26px}.layout{display:grid;grid-template-columns:312px minmax(0,1fr);gap:24px;align-items:start}.card{border:1px solid var(--line);border-radius:16px;background:var(--white)}.library{padding:23px 18px 15px}.library>.eyebrow{margin:0 5px 18px}.part{display:flex;align-items:center;gap:13px;border:1px solid transparent;width:100%;text-align:left;background:transparent;border-radius:10px;padding:15px 12px;color:var(--text);margin:7px 0}.part.active{border-color:#cddcbf;background:#f0f5e8}.part-num{font-size:19px;color:#879775;font-weight:500}.part strong{display:block;font-size:13px;font-weight:650}.part small{display:block;font-size:10px;color:var(--muted);margin-top:5px}.part-arrow{margin-left:auto}.library-bottom{border-top:1px solid var(--line);margin:18px 5px 0;padding-top:15px;display:flex;flex-direction:column;align-items:flex-start;font-size:11px;color:var(--muted);gap:8px}.settings{margin-top:16px;padding:24px}.settings label:not(.check){display:block;margin:22px 0 12px;font-size:12px}.settings label b{float:right;font-weight:500}.settings input[type=range]{width:100%;accent-color:var(--green)}.check{display:flex;align-items:center;font-size:11px;gap:7px;margin-top:18px}.check input{accent-color:var(--green)}.muted{color:var(--muted);font-size:12px;line-height:1.8}.settings .muted{margin-top:18px;font-size:11px}.key-help{font-size:10px;color:var(--muted);margin-top:18px}kbd{border:1px solid var(--line);padding:3px 6px;border-radius:4px;background:#fafbf7;font-size:10px}.guide{padding:18px 23px;margin-top:16px;font-size:11px;line-height:1.8;color:var(--muted)}summary{cursor:pointer;color:var(--text);font-weight:600}.guide button{display:block;margin-top:8px}.exercise-card{padding:30px 34px}.exercise-top{display:flex;justify-content:space-between;align-items:center}.badge{font-size:9px;letter-spacing:1.3px;padding:7px 10px;border:1px solid var(--line);border-radius:20px}.mono{font-size:11px;color:var(--muted);font-variant-numeric:tabular-nums}.progress-track{height:4px;background:#edf0e7;border-radius:5px;margin:24px 0 32px;overflow:hidden}.progress-track span{display:block;height:100%;width:0;background:#91a96c;transition:width .2s}.audio-toolbar{display:flex;align-items:center;gap:15px}.play-button{background:var(--lime);border:0;border-radius:50%;width:58px;height:58px;flex:0 0 58px;color:var(--text);font-size:20px}.audio-toolbar strong{font-size:14px;font-weight:600}.audio-toolbar p{margin:3px 0;font-size:11px}.icon-button{background:none;border:1px solid var(--line);border-radius:6px;color:var(--green);padding:7px;font-size:11px}.wave{margin-left:auto;font-size:22px;color:#9cac89;letter-spacing:3px;opacity:.3}.wave.active{opacity:1;animation:pulse .65s infinite alternate}@keyframes pulse{to{opacity:.3}}.audio-track{height:2px;background:#eff2e9;margin:18px 0 30px}.audio-track span{display:block;background:#859e67;width:0;height:100%}.sentence-heading{display:flex;justify-content:space-between;font-size:9px;letter-spacing:1.3px;color:#8c9985;margin-bottom:14px}.sentence{font-size:24px;line-height:2.05;letter-spacing:-.3px;overflow-wrap:anywhere;min-height:130px}.blank{border:0;border-bottom:2px solid #a3b48d;background:#f3f6ee;color:var(--text);padding:3px 8px;margin:3px 2px;max-width:100%;border-radius:4px 4px 0 0;font-size:21px;line-height:1.6;text-align:center;letter-spacing:0}.blank::placeholder{color:#adb99d}.blank.wrong{background:#fcf0e9;border-color:#b97455}.blank.correct{background:#eaf3dc;border-color:#85a461}.blank:focus{outline:2px solid #bfd09f;outline-offset:2px}#feedback{min-height:36px;font-size:12px;line-height:1.7;margin:16px 0 5px;color:#80553e}.action-row{display:flex;align-items:center;gap:20px;flex-wrap:wrap}.primary{border:0;background:var(--green);color:white;padding:14px 19px;border-radius:8px;font-size:12px;font-weight:600}.primary span{margin-left:15px}.primary:hover{background:#1b4230}.text-button{border:0;background:none;color:var(--green);padding:7px 0;font-size:11px}.text-button:hover{text-decoration:underline}.text-button.danger{color:#995f45}.hints{background:#f5f7f0;padding:12px 17px;border-radius:8px;margin-top:18px;font-size:12px;line-height:1.8}.hints p{margin:5px 0}.hints b{font-weight:650}.level{font-size:9px;padding:2px 5px;border-radius:4px;background:#e6edd9;margin-right:6px}.input-note{color:#8a9685;font-size:10px;margin:22px 0 24px}.exercise-footer{border-top:1px solid var(--line);padding-top:18px;margin-top:18px;display:flex;justify-content:space-between;align-items:center;gap:12px}.jump-label{font-size:10px;color:var(--muted);display:flex;align-items:center;gap:7px}select{border:1px solid var(--line);border-radius:6px;padding:7px 8px;color:var(--text);font-size:11px;background:white}#notice{font-size:12px;color:#926044;min-height:16px;line-height:1.8}footer{display:flex;justify-content:space-between;font-size:9px;color:#8c9886;margin-top:28px}footer span:first-child{letter-spacing:1.8px}#done{text-align:center;padding:25px 0 40px}#done .action-row{justify-content:center;margin-top:24px}#done h2{font-weight:550;letter-spacing:-.7px;font-size:26px}#done p{font-size:13px;line-height:1.9;color:var(--muted)}.done-mark{width:66px;line-height:66px;border-radius:50%;background:var(--lime);font-size:32px;margin:0 auto 24px}[hidden]{display:none!important}:focus-visible{outline:2px solid #91ad69;outline-offset:4px}@media(max-width:900px){main{padding:30px 22px}.layout{grid-template-columns:265px minmax(0,1fr);gap:16px}.exercise-card{padding:25px}.sentence{font-size:21px}.blank{font-size:19px}.hero-note{margin-right:0}.action-row{gap:14px}}@media(max-width:700px){header{height:72px}.header-note{display:none}.hero-note{display:none}h1{font-size:40px}.layout{grid-template-columns:1fr}.library{padding:18px}.part{display:inline-flex;width:49%;vertical-align:top;gap:8px;padding:12px 8px}.part-num{font-size:16px}.part strong{font-size:11px}.part-arrow{display:none}.library-bottom{flex-direction:row;justify-content:space-between;align-items:center;margin-top:12px;padding-top:10px}.settings{padding:18px;margin-top:12px}.settings .eyebrow,.settings .muted,.key-help{display:none}.settings label:not(.check){margin:0 0 8px}.check{margin:10px 0 0}.guide{margin:12px 0}.hero{margin-bottom:24px}.hero p{font-size:12px}.exercise-card{padding:22px}.sentence{min-height:95px}.offline{font-size:9px}.exercise-footer{gap:8px}.jump-label{font-size:0}footer{gap:20px;line-height:1.7}footer span:last-child{text-align:right}.wave{font-size:17px;letter-spacing:1px}}

.blank-wrap{display:inline-flex;max-width:100%;align-items:baseline}.blank-wrap .blank{min-width:0}

.test-picker{margin:0 5px 18px}.test-picker label{display:block;font-size:11px;color:var(--muted);margin-bottom:8px}.test-picker select{width:100%;padding:11px 10px;background:#f8faf5;font-size:12px}

.account-card{margin-top:16px;padding:21px 22px}.account-card>.eyebrow{margin-bottom:14px}.account-card label{display:block;margin:11px 0 6px;font-size:11px;color:var(--muted)}.account-card input{width:100%;border:1px solid var(--line);border-radius:7px;padding:10px 11px;color:var(--text);background:#fbfcf8;font-size:12px}.auth-actions{display:flex;align-items:center;gap:16px;margin-top:14px}.account-card .primary{padding:10px 14px}.account-email{font-size:12px;font-weight:650;overflow-wrap:anywhere}.account-card .muted{margin:8px 0 12px;font-size:11px}.pending-srs{padding:9px 11px;border-radius:7px;background:#f7ede5;color:#80553e;font-size:11px;line-height:1.6}.auth-message{min-height:0;margin:8px 0 0;font-size:10px;line-height:1.6;color:var(--green);overflow-wrap:anywhere}.auth-message.error{color:#a34f3c}.account-card #signOut{display:block;margin-top:4px}@media(max-width:700px){.account-card{margin-top:12px;padding:17px}.account-card>.eyebrow{display:block}}

.otp-panel{border-top:1px solid var(--line);margin-top:14px;padding-top:12px}.otp-panel label{display:block;margin:6px 0;font-size:11px;color:var(--muted)}.otp-panel input{width:100%;border:1px solid var(--line);border-radius:7px;padding:11px;color:var(--text);background:#fbfcf8;font-size:19px;letter-spacing:5px;text-align:center}.otp-panel .primary{margin-top:10px;width:100%}

.defer-button{border:1px solid #d9e5d6;border-radius:8px;background:#f4f7ef;color:#315a43;padding:9px 12px;font:inherit;font-size:12px;font-weight:650;cursor:pointer}.defer-button:hover{background:#e6efdf}.defer-button:disabled{opacity:.65;cursor:default}
.header-actions{display:flex;align-items:center;gap:8px;margin-left:auto}.header-auth{border:1px solid #d5e3c7;border-radius:8px;padding:9px 13px;background:#fff;color:#285943;font-size:11px;font-weight:700;white-space:nowrap}.header-auth-primary{background:#285943;color:#fff;box-shadow:0 5px 15px #2859432b}.header-auth:hover{transform:translateY(-1px)}.header-account-email{max-width:170px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:10px;color:#78867d}.listening-taskbar{position:sticky;top:0;z-index:8;display:flex;justify-content:center;align-items:center;gap:8px;padding:9px 16px;background:rgba(244,245,240,.96);border-bottom:1px solid #e2e7dc;backdrop-filter:blur(12px)}.listening-taskbar a,.listening-taskbar button{border:1px solid transparent;border-radius:8px;padding:9px 14px;background:transparent;color:#78867d;font:600 11px "Segoe UI",Arial,sans-serif;text-decoration:none;cursor:pointer}.listening-taskbar a:hover,.listening-taskbar button:hover,.listening-taskbar .active{background:#fff;border-color:#dce7d5;color:#285943}.listening-taskbar button:last-child{margin-left:12px;background:#e9f0e2;color:#285943;border-color:#d6e2cc}.account-dialog{position:fixed;inset:50% auto auto 50%;transform:translate(-50%,-50%);width:min(480px,calc(100vw - 28px));max-height:calc(100dvh - 32px);overflow:auto;padding:26px 28px 22px;border:1px solid #dce7d5;border-radius:17px;background:#fff;color:#203c34;box-shadow:0 24px 90px #17281e45}.account-dialog::backdrop{background:#19271f75;backdrop-filter:blur(3px)}.account-dialog .account-card{margin:0;padding:0;border:0;background:transparent}.account-dialog .account-card>.eyebrow{font-size:11px}.account-dialog .account-card input{background:#fbfcf8}.dialog-close{position:absolute;top:9px;right:12px;border:0;background:transparent;color:#78867d;font-size:25px;line-height:1;padding:5px}.dialog-close:hover{color:#203c34}.account-dialog[open]{display:block}.account-dialog #authSignedIn{margin-top:14px}.account-dialog #reviewSrs{margin:5px 0}.account-dialog .account-email{padding-right:22px}.full-test-link{margin-left:0!important}@media(max-width:700px){.header-actions{gap:5px}.header-auth{font-size:9px;padding:8px 9px}.header-account-email{max-width:100px;font-size:8px}.listening-taskbar{gap:2px;padding:7px 5px}.listening-taskbar a,.listening-taskbar button{font-size:9px;padding:8px 7px}.listening-taskbar button:last-child{margin-left:3px}.account-dialog{padding:24px 19px 18px}}
#feedback:empty{display:none}

.signed-in-menu{position:relative;margin-left:auto}.signed-in-dropdown{display:none;position:absolute;right:0;top:100%;z-index:40;min-width:215px;background:#fff;border:1px solid #dce7d5;border-radius:9px;padding:8px;box-shadow:0 12px 30px #152b1d22}.signed-in-menu:hover .signed-in-dropdown,.signed-in-menu:focus-within .signed-in-dropdown{display:grid;gap:4px}.signed-in-dropdown>a,.signed-in-dropdown>button{display:block;text-align:left;padding:10px;border:0;border-radius:6px;background:transparent;color:#285943;text-decoration:none;font:inherit;font-size:12px;cursor:pointer}.signed-in-dropdown>a:hover,.signed-in-dropdown>button:hover{background:#edf4ea}.signed-in-dropdown small,.signed-in-dropdown strong{display:block}.signed-in-dropdown small{font-size:10px;color:#7b897e;margin-top:3px}.header-account-email{padding:6px 10px;color:#728174;font-size:10px}
.saved-cards-list{display:grid;gap:8px;margin:12px 0;max-height:280px;overflow:auto}.saved-card{padding:10px 12px;border:1px solid var(--line);border-radius:9px;background:#f7f9f4}.saved-card-label{font-size:9px;letter-spacing:.08em;color:var(--muted);font-weight:700}.saved-card p{margin:6px 0;font-size:11px;line-height:1.55}.saved-card p strong{padding:1px 4px;border-radius:4px;background:#e3efbd;color:#294c38}.saved-card small{font-size:9px;color:var(--muted)}