@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Noto+Sans+SC:wght@400;500;600;700&display=swap');
:root{--blue:#2253e6;--ink:#16213b;--muted:#68748c;--border:#e3e8f0;--bg:#f5f7fb;--green:#18734b;--soft-blue:#edf2ff;font-family:'DM Sans','Noto Sans SC',sans-serif;color:var(--ink);font-size:16px}*{box-sizing:border-box}body{margin:0;background:var(--bg)}button,input,textarea,select{font:inherit}button,a,input,textarea,select{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}button:focus-visible,a:focus-visible{outline:3px solid #8ba9ff;outline-offset:4px}button{border:0}a{color:var(--blue)}[hidden]{display:none!important}.sidebar{position:fixed;inset:0 auto 0 0;width:230px;background:white;border-right:1px solid var(--border);padding:36px 24px;display:flex;flex-direction:column}.brand{display:flex;gap:12px;align-items:center;text-decoration:none;color:var(--ink);font-size:29px;font-weight:700;letter-spacing:-1px}.brand-mark{width:43px;height:43px;background:var(--blue);color:#fff;border-radius:13px;display:grid;place-items:center;font-size:31px;padding-bottom:6px}.brand-sub{display:block;font-size:12px;font-weight:400;letter-spacing:1.2px;color:var(--muted);margin-top:1px}.side-label{font-size:12px;color:#8791a5;letter-spacing:1px;margin:55px 12px 16px}.nav-item{width:100%;display:flex;align-items:center;gap:14px;padding:14px 15px;border-radius:9px;background:none;text-align:left;color:var(--muted);margin:4px 0;font-size:15px}.nav-item>span{font-size:21px}.nav-item.active{background:var(--soft-blue);color:var(--blue);font-weight:600}.nav-item small{margin-left:auto;font-size:12px}.side-bottom{margin-top:auto}.level{font-weight:700;font-size:16px}.level 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32px;min-height:70px}.input-label{font-size:14px;display:block;margin-bottom:11px}textarea{width:100%;resize:vertical;min-height:147px;border:1px solid #d9e0ec;border-radius:10px;padding:18px 20px;font-size:19px;line-height:1.7;background:#fcfdff;color:var(--ink);outline:none;transition:border .15s,box-shadow .15s}textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px #2253e612}textarea::placeholder{color:#a1aabe}textarea[readonly]{background:#f6f8fc}.input-footer{display:flex;justify-content:space-between;color:#8390a7;font-size:12px;margin-top:10px}.action-row{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-top:28px}.primary{background:var(--blue);color:white;border-radius:8px;padding:13px 20px;font-size:15px;font-weight:500;transition:background .15s}.primary:hover{background:#1841bd}.primary>span{margin-left:14px}.subtle,.text-button{background:none;color:var(--muted);font-size:14px;padding:6px 0;text-align:left}.text-button{color:var(--blue);font-size:13px}.subtle:hover{color:var(--blue)}.study-footnote{text-align:center;font-size:12px;color:var(--muted);margin:20px 0}.study-rail{padding-top:0}.daily-card,.week-card{background:white;border:1px solid var(--border);border-radius:12px;padding:22px;margin-bottom:18px}.rail-title{display:flex;justify-content:space-between;align-items:center;font-size:14px;font-weight:500}.rail-title .text-button{font-size:12px}.progress-number{display:flex;align-items:baseline;gap:7px;margin-top:19px}.progress-number strong{font-size:43px;letter-spacing:-2px;line-height:1.2}.progress-number>span{font-size:14px;color:var(--muted)}.progress-track{height:6px;border-radius:20px;background:#edf0f5;margin-top:18px;overflow:hidden}.progress-track>div{height:100%;background:var(--blue);width:0;transition:width .3s}.daily-card p{color:var(--muted);font-size:12px;line-height:1.7;margin-top:12px}.mini-stats{border-top:1px solid var(--border);display:grid;grid-template-columns:1fr 1fr;padding-top:18px;margin-top:20px}.mini-stats div{display:flex;flex-direction:column;gap:6px}.mini-stats div+div{border-left:1px solid var(--border);padding-left:20px}.mini-stats b{font-size:23px;font-weight:500}.mini-stats span{font-size:12px;color:var(--muted)}.week-chart{display:flex;align-items:end;gap:9px;height:96px;margin-top:18px}.week-day{flex:1;text-align:center;height:100%;display:flex;flex-direction:column;justify-content:end;gap:8px;font-size:11px;color:var(--muted)}.week-bar{background:#d7e1ff;border-radius:4px;min-height:4px}.week-day:last-child .week-bar{background:var(--blue)}.tip-card{padding:14px 7px}.tip-card .eyebrow{font-size:10px;letter-spacing:1.4px}.tip-card h3{font-size:16px;font-weight:500;margin:12px 0}.tip-card p{font-size:13px;line-height:1.9;color:var(--muted)}footer{display:flex;gap:14px;align-items:center;margin-top:38px;border-top:1px solid var(--border);padding:20px 0 0;font-size:10px;letter-spacing:1px;color:#8b95a9}footer span{font-size:12px;letter-spacing:0}.local-badge{margin-left:auto}#result{border-top:1px solid var(--border);margin-top:25px;padding-top:25px}.reference{background:#f1f5ff;border-left:3px solid var(--blue);padding:17px 20px;margin:12px 0 14px;border-radius:0 8px 8px 0}.reference p{font-size:20px;line-height:1.7;margin:0}.result-label{font-size:13px;color:var(--blue);font-weight:500}.note{font-size:14px;color:var(--muted);line-height:1.8}.match-row{display:flex;gap:14px;align-items:center;margin:20px 0 8px}.match-score{font-size:15px;font-weight:600}.match-hint{font-size:12px;color:var(--muted);line-height:1.6}.diff{font-size:16px;line-height:1.9;margin:10px 0;color:#43516d;overflow-wrap:anywhere}.diff mark{background:#fff0d6;color:#87570b;border-radius:3px;padding:1px 2px}.score-title{font-size:15px;margin-top:25px}.score-buttons{display:grid;grid-template-columns:repeat(10,minmax(0,1fr));gap:6px;margin:12px 0}.score-button{background:#f4f6fa;border:1px solid var(--border);border-radius:7px;padding:11px 0;font-size:16px;color:#465574}.score-button.chosen{background:var(--blue);border-color:var(--blue);color:white}.score-key{display:flex;justify-content:space-between;font-size:11px;color:var(--muted);gap:10px}.next-preview{font-size:14px;line-height:1.7;margin:20px 0 14px;color:var(--green)}.save-row{display:flex;justify-content:space-between;gap:16px;align-items:center}.save-row .primary{margin-left:auto}.empty-state{padding:58px 30px;border:1px solid var(--border);border-radius:16px;background:white;text-align:center;min-height:350px}.empty-icon{font-size:42px;color:var(--blue);margin-bottom:18px}.empty-state h2{font-size:24px}.empty-state p{color:var(--muted);line-height:1.9}.empty-state button{margin-top:14px}.warning{background:#fff0d6;padding:14px 20px;border-radius:8px;margin-bottom:18px;line-height:1.7;font-size:14px}.toast{position:fixed;bottom:30px;left:50%;transform:translateX(-50%);background:var(--ink);color:white;padding:14px 23px;border-radius:10px;z-index:20;font-size:14px;max-width:90vw}dialog{width:min(550px,92vw);border:1px solid var(--border);border-radius:16px;padding:28px;max-height:88vh;overflow:auto;color:var(--ink)}dialog::backdrop{background:#16213b60;backdrop-filter:blur(3px)}.dialog-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.dialog-head h2{margin:0;font-size:22px}.icon-button{background:#f0f3fa;border-radius:50%;width:32px;height:32px;font-size:22px;color:var(--muted)}#settings-form label{display:block;font-size:14px;margin:17px 0 8px}#settings-form label span{display:block;font-size:12px;color:var(--muted);margin-top:6px}input[type=number],input[type=time],input[type=search]{border:1px solid #d7deeb;border-radius:8px;padding:11px 12px;color:var(--ink);background:white}#settings-form input{width:100%}.settings-actions{margin:20px 0}.settings-section{border-top:1px solid var(--border);padding-top:8px;margin-top:25px}.settings-section h3{font-size:16px}.settings-section p{font-size:14px;color:var(--muted);line-height:1.8}.secondary{display:inline-block;border:1px solid var(--border);border-radius:8px;background:white;padding:10px 14px;font-size:14px;color:var(--ink);margin:4px 5px 4px 0;cursor:pointer}.secondary:hover{background:var(--soft-blue)}.muted{color:var(--muted);font-size:13px}.library-toolbar{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:22px}.library-toolbar input{flex:1;min-width:150px}.library-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}.library-card{background:white;border:1px solid var(--border);border-radius:12px;padding:22px}.library-card h3{font-size:16px;line-height:1.7;font-weight:500;margin:15px 0 12px}.library-card .fr{font-size:17px;line-height:1.7;margin:10px 0;color:#445573}.library-card .card-top{font-size:12px}.library-card details summary{font-size:13px;color:var(--blue);cursor:pointer}.library-bottom{display:flex;justify-content:space-between;align-items:center;margin-top:15px;gap:12px}.library-bottom span{font-size:12px;color:var(--muted)}.list-count{color:var(--muted);font-size:14px;margin-bottom:17px}.plan-top{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:25px}.plan-stat{background:white;border:1px solid var(--border);border-radius:12px;padding:25px}.plan-stat strong{display:block;font-size:35px;margin-top:12px}.plan-stat span{font-size:14px;color:var(--muted)}.plan-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:22px}.panel{background:white;border:1px solid var(--border);border-radius:12px;padding:25px}.panel h2{font-size:19px;margin:0 0 20px}.schedule-row{display:flex;align-items:center;gap:15px;margin:18px 0;font-size:14px}.schedule-row>span{min-width:56px}.schedule-line{height:9px;background:#edf1f9;flex:1;border-radius:5px;overflow:hidden}.schedule-line div{background:var(--blue);height:100%;border-radius:5px}.schedule-row b{font-size:13px;min-width:35px;text-align:right}.rule-row{display:flex;justify-content:space-between;gap:15px;padding:13px 0;border-bottom:1px solid var(--border);font-size:14px;line-height:1.6}.panel p{font-size:14px;line-height:1.9;color:var(--muted)}.review-list{margin-top:24px}.review-item{padding:15px 0;display:flex;align-items:center;justify-content:space-between;gap:20px;border-bottom:1px solid var(--border)}.review-item p{margin:0;font-size:14px}.review-item span{font-size:12px;color:var(--muted)}.review-item .text-button{white-space:nowrap}.return-button{margin-bottom:16px}.pagination{display:flex;align-items:center;justify-content:center;gap:18px;margin:25px 0;font-size:14px}.metric-caption{font-size:12px;color:var(--muted);margin-top:7px}.success-tag{color:var(--green)}
@media(min-width:1500px){.workspace{padding:45px 65px}.study-layout{grid-template-columns:minmax(0,850px) 280px}}
@media(max-width:1180px){.sidebar{width:195px;padding:28px 18px}.workspace{margin-left:195px;padding:30px 25px}.study-layout{gap:20px;grid-template-columns:minmax(0,1fr) 225px}.exercise{padding:25px}h1{font-size:23px}.study-toolbar{flex-wrap:wrap}.study-rail{padding-top:0}.daily-card,.week-card{padding:18px}.score-buttons{gap:4px}.score-button{font-size:14px}}
@media(max-width:960px){.study-layout{grid-template-columns:1fr}.study-rail{display:grid;grid-template-columns:1fr 1fr;gap:18px}.tip-card{display:none}.daily-card,.week-card{margin-bottom:0}.mini-stats{margin-top:12px;padding-top:12px}.week-chart{height:140px}.plan-grid{grid-template-columns:1fr}.library-list{grid-template-columns:1fr}header{align-items:start}.streak-pill{font-size:12px;padding:9px 12px}}
@media(max-width:650px){.sidebar{position:relative;width:100%;padding:17px 20px;border-right:0;border-bottom:1px solid var(--border)}.brand{font-size:24px}.brand-mark{width:35px;height:35px;font-size:26px;border-radius:10px}.brand-sub{font-size:10px}.side-label,.side-bottom{display:none}.sidebar nav{display:flex;margin-top:15px;gap:7px}.nav-item{justify-content:center;font-size:13px;padding:10px 6px;gap:7px;margin:0}.nav-item>span{font-size:18px}.nav-item small{display:none}.workspace{margin-left:0;padding:25px 18px}.eyebrow{font-size:11px}header{margin-bottom:25px}h1{font-size:21px;line-height:1.5}.streak-pill{font-size:11px;white-space:normal;min-width:82px;text-align:center}.study-toolbar{gap:10px}.segmented button{font-size:13px;padding:8px 10px}select{font-size:13px;max-width:140px;padding:9px 7px}.exercise{padding:23px 20px}h2#prompt{font-size:23px;min-height:55px;margin-bottom:25px}.prompt-label{margin-top:26px}textarea{font-size:18px;padding:15px;min-height:150px}.input-footer{font-size:10px}.action-row{gap:8px}.primary{font-size:14px;padding:12px 14px}.subtle{font-size:13px}.score-buttons{grid-template-columns:repeat(5,minmax(0,1fr));gap:7px}.score-button{font-size:16px}.score-key{font-size:10px}.match-row{align-items:start;flex-direction:column;gap:6px}.reference{padding:14px}.reference p{font-size:18px}.study-rail{gap:12px}.daily-card,.week-card{padding:16px}.rail-title{font-size:13px}.progress-number strong{font-size:34px}.mini-stats b{font-size:20px}.mini-stats span{font-size:10px}.daily-card p{font-size:11px}.week-chart{gap:6px}.week-day{font-size:10px}.local-badge{display:none}footer{font-size:9px}footer span{font-size:10px}.plan-top{gap:9px}.plan-stat{padding:16px 12px}.plan-stat strong{font-size:27px}.plan-stat span{font-size:12px}.plan-grid{gap:16px}.panel{padding:21px}.study-footnote{font-size:11px}.save-row{flex-wrap:wrap}.save-row .primary{width:100%}.score-title{font-size:14px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

/* Practice history: one row per saved attempt, including repeated reviews. */
.history-card{background:white;border:1px solid var(--border);border-radius:12px;padding:20px;margin-bottom:18px}.history-card h2{font-size:15px;font-weight:600;margin:0}.history-count{color:var(--muted);font-size:12px}.history-caption{color:var(--muted);font-size:12px;line-height:1.7;margin:9px 0 14px}.history-list{max-height:370px;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:#d5ddeb transparent}.history-list:focus-visible{outline:2px solid var(--blue);outline-offset:4px}.history-list ol{list-style:none;margin:0;padding:0}.history-entry{padding:14px 0;border-bottom:1px solid var(--border)}.history-entry:first-child{padding-top:0}.history-entry:last-child{border-bottom:0}.history-meta{display:flex;align-items:center;justify-content:space-between;gap:8px}.history-meta time{font-size:12px;color:var(--muted);line-height:1.6}.history-score{display:inline-flex;align-items:baseline;gap:2px;padding:4px 7px;border-radius:6px;font-size:16px;font-weight:600;white-space:nowrap}.history-score small{font-size:10px;font-weight:400}.history-score.high{color:#18734b;background:#e8f5ed}.history-score.medium{color:#2253e6;background:#edf2ff}.history-score.low{color:#965918;background:#fff2dd}.history-entry p{font-size:14px;line-height:1.8;margin:9px 0 5px;overflow-wrap:anywhere}.history-card-label{font-size:11px;color:var(--muted)}.history-empty{font-size:14px;color:var(--muted);line-height:1.9;margin:4px 0 0}.history-more{display:block;margin:12px auto 0}.history-list ol li{list-style:none}
@media(max-width:960px){.history-card{grid-column:1/-1;grid-row:2;margin-bottom:0}.history-list{max-height:350px}.history-meta time{font-size:13px}.history-entry p{font-size:15px}}

.history-answer{margin:12px 0 8px;white-space:pre-wrap}.history-reference{font-size:12px;color:var(--muted);margin:8px 0 12px}.history-reference summary{cursor:pointer;color:var(--blue);line-height:1.7}.history-reference .diff{font-size:15px}.history-card-label{display:block;margin-top:8px}

.notes-card{background:white;border:1px solid var(--border);border-radius:12px;padding:20px;margin-bottom:18px}.notes-card h2{font-size:15px;font-weight:600;margin:0}.notes-card .muted{font-size:12px}.notes-label{display:block;font-size:13px;color:var(--muted);margin:13px 0 10px}.notes-card textarea{font-size:15px;line-height:1.8;padding:12px;min-height:150px}.notes-card textarea:disabled{background:#f3f5f8}.notes-card textarea::placeholder{font-size:14px}@media(max-width:960px){.notes-card{grid-column:1/-1;grid-row:3;margin-bottom:0}}

/* Daily progress belongs to the lower left navigation area. */
.sidebar{overflow-y:auto}.sidebar>.brand,.sidebar>nav{flex-shrink:0}.sidebar .side-bottom{padding-top:24px}.sidebar .daily-card{padding:14px;margin:0 0 20px;background:var(--bg)}.sidebar .daily-card .rail-title{flex-wrap:wrap;gap:3px 8px;font-size:14px}.sidebar .daily-card .progress-number{margin-top:12px}.sidebar .daily-card .progress-number strong{font-size:34px}.sidebar .daily-card p{margin:12px 0;font-size:12px}.sidebar .daily-card .mini-stats{margin-top:12px;padding-top:12px}.sidebar .daily-card .mini-stats div+div{padding-left:12px}.sidebar .daily-card .mini-stats b{font-size:20px}.sidebar .daily-card .mini-stats span{font-size:12px}
@media(max-width:960px){.study-rail .history-card{grid-row:1}.study-rail .notes-card{grid-row:2}.study-rail .week-card{grid-column:1/-1;grid-row:3}}
@media(max-width:650px){.sidebar .side-bottom{display:block;padding-top:16px;margin-top:0}.sidebar .side-bottom>.level,.sidebar .side-bottom>p{display:none}.sidebar .daily-card{margin-bottom:8px}.sidebar .daily-card .mini-stats{display:none}.sidebar .daily-card .progress-number strong{font-size:28px}.sidebar .daily-card .progress-number{margin-top:5px}.sidebar .daily-card .progress-track{margin-top:9px}.sidebar .daily-card p{margin-bottom:0}.sidebar{overflow-y:visible}}

.ai-settings label{display:block;font-size:14px;margin:14px 0 8px}.ai-settings input[type=password]{width:100%;padding:12px;border:1px solid var(--border);border-radius:8px;background:#fff;color:var(--ink)}.ai-settings .ai-toggle{display:flex;gap:8px;align-items:center;margin:18px 0}.ai-settings input[type=checkbox]{width:17px;height:17px}.ai-settings .text-button{margin:8px}.ai-feedback{margin:24px 0;padding:20px;background:#f7f9ff;border:1px solid #dce5ff;border-radius:10px}.ai-feedback h3{font-size:17px;margin:0 0 12px}.ai-feedback h3 small{font-size:12px;font-weight:400;color:var(--muted);margin-left:8px}.ai-feedback p,.ai-feedback li{font-size:14px;line-height:1.8;overflow-wrap:anywhere}.ai-feedback li{margin-bottom:10px}.ai-feedback ul{padding-left:20px}.ai-answer{white-space:pre-wrap}.ai-error{color:#995211}

.collection-head{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:20px}.collection-head h2{margin:0}.collection-context{font-size:14px;line-height:1.8}.check-label{display:flex;align-items:center;gap:8px;font-size:14px}.check-label input{width:17px;height:17px;flex-shrink:0}.bulk-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:18px;font-size:13px}.library-dialog label{display:block;margin:14px 0 8px;font-size:14px}.library-dialog input:not([type=checkbox]),.library-dialog select{display:block;width:100%;max-width:none;border:1px solid var(--border);border-radius:8px;padding:10px;margin-top:8px}.library-dialog textarea{display:block;margin-top:8px;min-height:80px;font-size:16px}.library-dialog .check-label{display:flex}.library-card .card-id{overflow-wrap:anywhere;max-width:45%;font-size:10px}.form-error{color:#a33}.library-list .library-bottom{flex-wrap:wrap}@media(max-width:650px){.collection-head{align-items:start;flex-direction:column}.collection-head h2{font-size:22px}}

.answer-label-row{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:12px}.answer-label-row .input-label{margin:0}.voice-toggle{display:flex;align-items:center;gap:7px;font-size:14px;cursor:pointer;white-space:nowrap;color:#667593}.voice-toggle input{accent-color:#2453e9;width:16px;height:16px;margin:0}#voice-panel{min-height:208px;box-sizing:border-box;padding:28px;border:1px solid #d4def4;border-radius:12px;background:#f6f8fd;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px}#voice-panel[hidden],#answer[hidden]{display:none}#voice-panel p{font-size:14px;color:#667593;margin:0;text-align:center}.voice-actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}.voice-actions button[hidden]{display:none}

.set-tags{display:flex;flex-wrap:wrap;gap:7px;margin:8px 0}.set-tags:empty{display:none}.set-tag{background:#eef2ff;color:#3459bd;border-radius:6px;padding:4px 9px;font-size:13px;overflow-wrap:anywhere}#set-tag-filter{max-width:260px}

.speaking-feedback{border-top:1px solid #dce3f3;margin-top:28px;padding-top:24px}.speaking-feedback[hidden]{display:none}.speaking-feedback audio{width:100%;margin:12px 0 18px}.speaking-feedback .voice-actions{justify-content:flex-start}.speaking-feedback .muted{font-size:13px;line-height:1.7}.speaking-result{white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.85}.speaking-feedback h3{margin:0}

.rail-controls{display:flex;align-items:center;gap:8px}.visibility-toggle{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;flex-shrink:0;border:0;border-radius:8px;background:transparent;color:var(--muted);cursor:pointer}.visibility-toggle svg{width:22px;height:22px}.visibility-toggle:hover{background:#edf2ff;color:var(--blue)}.visibility-toggle:focus-visible{outline:2px solid var(--blue);outline-offset:2px}.visibility-toggle[aria-pressed="true"]{color:var(--blue)}.visibility-toggle:disabled{opacity:.4;cursor:default}.hint-content.concealed{filter:blur(7px);user-select:none;pointer-events:none}.hint-content{overflow:hidden}
/* Account controls and a compact navigation rail. */
.header-actions{display:flex;align-items:center;gap:16px}.profile-menu{position:relative;flex:none}.profile-toggle{width:44px;height:44px;border:1px solid var(--border);border-radius:50%;background:white;color:var(--ink);display:grid;place-items:center;cursor:pointer}.profile-toggle:hover,.profile-toggle[aria-expanded=true]{background:var(--soft-blue);border-color:var(--blue)}.profile-toggle svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round}.profile-panel{position:absolute;right:0;top:54px;width:270px;z-index:30;background:white;border:1px solid var(--border);border-radius:16px;padding:20px;box-shadow:0 12px 40px #1d31551a}.profile-panel>label{display:block;font-size:12px;color:var(--muted);margin-bottom:8px}.profile-panel select{width:100%;max-width:none}.profile-panel .subtle{display:block;width:100%;text-align:left;padding:12px 6px;margin:0;overflow-wrap:anywhere}.profile-panel #profile-actions{margin-top:10px;border-top:1px solid var(--border);padding-top:6px}.sidebar-toggle{position:absolute;right:8px;top:14px;border:1px solid var(--border);background:white;border-radius:8px;width:26px;height:28px;font-size:22px;color:var(--muted);cursor:pointer}.sidebar nav .nav-label{font-size:14px}.sidebar-collapsed .sidebar{width:76px;padding:54px 12px 20px}.sidebar-collapsed .brand{justify-content:center}.sidebar-collapsed .brand>span:last-child,.sidebar-collapsed .side-label,.sidebar-collapsed .side-bottom,.sidebar-collapsed .nav-label,.sidebar-collapsed .nav-item small{display:none}.sidebar-collapsed .nav-item{justify-content:center;padding:15px 0}.sidebar-collapsed .workspace{margin-left:76px}.language-pair{display:grid;grid-template-columns:1fr 1fr;gap:14px}.language-pair select{display:block;width:100%;max-width:none;margin-top:9px}#language-settings{margin-top:20px;padding:16px;background:var(--bg);border:1px solid var(--border);border-radius:12px}#language-settings h3{margin:0;font-size:16px}#language-settings label{margin-top:14px}.nav-item .nav-label{min-width:0}.streak-pill{white-space:nowrap}
@media(max-width:650px){.header-actions{gap:8px;align-items:flex-start}.header-actions .streak-pill{display:none}.sidebar-toggle{right:18px;top:22px}.sidebar-collapsed .sidebar{position:relative;width:100%;padding:12px 55px 12px 16px}.sidebar-collapsed .brand{display:none}.sidebar-collapsed .sidebar nav{margin:0;justify-content:flex-start}.sidebar-collapsed .nav-item{width:48px;flex:none;padding:8px}.sidebar-collapsed .workspace{margin-left:0}.sidebar-collapsed .sidebar-toggle{top:15px}.profile-panel{width:min(270px,calc(100vw - 36px))}.language-pair{grid-template-columns:1fr}.sidebar nav .nav-label{font-size:12px}}
.expression-dialog{width:min(820px,94vw);max-width:820px}.add-mode{margin:10px 0 22px;width:fit-content}.generation-grid{display:grid;grid-template-columns:2fr 1fr;gap:16px;align-items:center}.generation-language{display:inline-block;background:var(--soft-blue);color:var(--blue);padding:7px 12px;border-radius:8px;margin:0;font-size:14px}.generation-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:20px}.generation-status{font-size:14px;line-height:1.7;color:var(--muted)}.preview-heading,.generated-row-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.generated-row{border:1px solid var(--border);border-radius:12px;padding:18px;margin-bottom:16px;background:#fcfdff}.generated-row-head .check-label{margin:0}.generated-row-head{border-bottom:1px solid var(--border);padding-bottom:10px}.preview-save{position:sticky;bottom:-28px;background:white;border-top:1px solid var(--border);padding:16px 0 4px;text-align:right}.expression-dialog .muted{line-height:1.7}.generation-preview{border-top:1px solid var(--border);margin-top:20px;padding-top:10px}.generated-row textarea{min-height:70px}.generation-grid .check-label{align-self:center}@media(max-width:650px){.generation-grid{grid-template-columns:1fr;gap:0}.expression-dialog{padding:20px}.add-mode button{font-size:13px}.generated-row{padding:12px}.preview-save{bottom:-20px}}
.generation-form.missing-api-key{opacity:.45}.generation-form.missing-api-key input,.generation-form.missing-api-key textarea,.generation-form.missing-api-key select{cursor:not-allowed;background:#eef0f4}.batch-panel>.generation-settings{margin-top:14px;color:var(--blue)}
.bubble-widget{position:fixed;right:24px;bottom:24px;z-index:30;display:flex;flex-direction:column;align-items:flex-end;gap:16px}.bubble-widget[hidden],.bubble-pop[hidden]{display:none}.bubble-launch{border:1px solid #d7dfed;background:#e8ecf4;color:#233353;box-shadow:0 6px 22px #172a4820;border-radius:30px;padding:18px 22px;font-weight:600;cursor:pointer}.bubble-launch:before{content:'▣';margin-right:8px;font-size:20px}.bubble-pop{width:min(340px,calc(100vw - 36px));background:#fffdf5;border:2px solid #e9c980;border-radius:25px 25px 6px 25px;padding:20px;box-shadow:0 12px 40px #172a4826;overflow-wrap:anywhere;max-height:70vh;overflow:auto}.bubble-pop-head{display:flex;justify-content:space-between;align-items:center;gap:8px}.bubble-prompt{display:block;width:100%;background:none;color:var(--ink);font-size:24px;line-height:1.5;padding:16px 0;text-align:center;white-space:pre-wrap;cursor:pointer}.bubble-pop>p{white-space:pre-wrap;text-align:center;line-height:1.6}.bubble-ratings{display:grid;grid-template-columns:1fr 1fr;gap:6px}.bubble-ratings button{margin:0}.bubble-manager{width:min(680px,94vw)}.bubble-form label{display:block;margin:12px 0}.bubble-form label span{display:block;margin-bottom:8px;font-size:14px}.bubble-form textarea{box-sizing:border-box;width:100%;border:1px solid var(--border);border-radius:10px;padding:12px;font:inherit;resize:vertical}.bubble-toolbar{display:flex;gap:10px;margin:24px 0 12px}.bubble-toolbar input{min-width:0;flex:1}.bubble-toolbar select{border:1px solid var(--border);border-radius:8px;padding:8px;background:white;color:var(--ink)}.bubble-item{padding:18px 0;border-top:1px solid var(--border);overflow-wrap:anywhere}.bubble-item>strong,.bubble-item>p{white-space:pre-wrap}.bubble-item>p{margin:8px 0}.bubble-settings label{display:flex;align-items:center;gap:10px}.bubble-settings input{width:18px;height:18px}.bubble-settings p{line-height:1.8}@media(max-width:767px){.bubble-widget{right:12px;bottom:12px}.bubble-launch{padding:12px 16px}}
.bubble-launch{width:64px;height:64px;padding:0;border-radius:50%;font-size:0}.bubble-launch:before{margin:0;font-size:28px}.bubble-launch:hover{background:#dce3f1}.bubble-launch:focus-visible,.bubble-prompt:focus-visible{outline:3px solid #2253e6;outline-offset:3px}

.ai-followup{margin-top:24px;padding-top:20px;border-top:1px solid #dbe2f1}.ai-followup textarea{width:100%;min-height:84px;margin:10px 0;box-sizing:border-box;padding:12px;font:inherit;border:1px solid #ccd7ec;border-radius:10px;background:white}.followup-actions{display:flex;gap:12px;align-items:center}.followup-messages{max-height:420px;overflow:auto;overflow-wrap:anywhere}.followup-messages p{white-space:pre-wrap;padding:12px 16px;border-radius:12px}.followup-user{background:#e8edff;margin-left:24px}.followup-assistant{background:white;margin-right:16px}.ai-followup [aria-busy=true]{opacity:.7}

.collection-tabs{margin-bottom:24px}.public-preview-cards article{padding:20px 0;border-bottom:1px solid #dde4f2}.public-preview-cards p{white-space:pre-wrap;overflow-wrap:anywhere}.public-preview{width:min(820px,calc(100vw - 32px))}

.billing-plans{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:16px;margin:24px 0}.billing-plans article{border:1px solid #dde3f0;border-radius:16px;padding:20px}.billing-plans strong{font-size:28px}