/* Basic · a focused vocabulary workspace. System fonts include Vietnamese glyphs. */
:root{--font-ui:"Segoe UI Variable Text","Segoe UI",-apple-system,BlinkMacSystemFont,"Noto Sans",Roboto,Arial,sans-serif;--bg:#f8f9fc;--white:#fff;--ink:#272537;--muted:#6b687b;--green:#6b50ba;--light:#f0ecfa;--border:#e6e5ed;--orange:#a46b25;--shadow:0 4px 18px #30234c04;--radius:16px}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.6 var(--font-ui);text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}button,input,textarea,select{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.48}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #a990e9;outline-offset:4px}h1,h2,h3,p{margin:0}h1,h2,h3{letter-spacing:-.025em;font-weight:700;color:var(--ink)}h1{font-size:30px;line-height:1.4}h2{font-size:24px;line-height:1.45}h3{font-size:16px;line-height:1.5}p{line-height:1.75}small,.muted{color:var(--muted)}strong{font-weight:650}svg{flex-shrink:0}.ui-icon{width:20px;height:20px;vertical-align:middle}button .ui-icon{pointer-events:none}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.sidebar{width:222px;position:fixed;inset:0 auto 0 0;background:var(--white);border-right:1px solid var(--border);padding:30px 18px;display:flex;flex-direction:column;z-index:10}.brand{display:flex;align-items:center;gap:10px;font-size:28px;font-weight:750;letter-spacing:-1.2px;padding:0 10px;margin-bottom:42px}.cat-logo{width:38px;height:38px;flex-shrink:0}.brand-dot{width:6px;height:6px;background:#b8a4de;border-radius:50%;margin:14px 0 0 0}.sidebar-label{font-size:10px;letter-spacing:.13em;color:#92909e;font-weight:650;padding:0 14px;margin-bottom:12px}nav{display:flex;flex-direction:column;gap:7px}nav a{display:flex;align-items:center;gap:12px;min-height:46px;padding:11px 13px;border-radius:10px;font-size:13px;color:var(--muted);font-weight:550}nav a:hover{background:#f7f5fb}nav a.active{color:#5f43a8;background:#f0ebfa;font-weight:700}nav b{font-size:10px;padding:2px 7px;background:#e7def6;border-radius:6px;margin-left:auto;color:#684e99}nav .ui-icon{width:19px;height:19px}.sidebar-bottom{margin-top:auto;border-top:1px solid var(--border);padding:18px 12px 0}.sidebar-bottom a{display:flex;align-items:center;gap:9px;font-size:12px;color:var(--muted);margin-top:12px}.local-dot{font-size:10px;color:#7d9c86;line-height:1.6}.local-dot span{color:var(--muted);margin-left:4px}main{margin-left:222px;min-height:100vh}.topbar{height:70px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:16px;padding:0 40px;background:#fff;color:#8a8697;font-size:12px}.private-badge{margin-left:auto;font-size:11px;color:var(--muted);padding:6px 10px;background:#f5f6f9;border-radius:20px;max-width:55%;overflow-wrap:anywhere}.avatar{width:32px;height:32px;border-radius:50%;padding:4px;background:#f2eef9}.cat-avatar{object-fit:contain}#app{max-width:1260px;margin:auto;padding:34px 40px 40px;min-height:calc(100vh - 70px)}.page-title{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:28px}.page-title p{color:var(--muted);font-size:14px;margin-top:7px;max-width:700px}.eyebrow{display:block;font-size:10px;color:#8a74ab;font-weight:650;letter-spacing:.14em;margin-bottom:10px;line-height:1.7}.page-title>.btn{flex-shrink:0}.btn{border:1px solid var(--border);border-radius:10px;padding:12px 18px;display:inline-flex;align-items:center;justify-content:center;gap:9px;background:white;color:var(--ink);font-size:13px;font-weight:650;line-height:1.5;min-height:44px;transition:background .15s,transform .15s}.btn:hover{background:#f5f2fb;border-color:#d9cfea}.btn:active{transform:translateY(1px)}.btn.primary{background:var(--green);border-color:var(--green);color:white;box-shadow:0 2px 0 #4e3793}.btn.primary:hover{background:#5d42a9}.btn.soft{background:var(--light);color:#6549a5;border-color:#e3d9f3}.btn.small{padding:8px 12px;font-size:12px;min-height:36px}.btn.danger{color:#ac414b}.btn.text-button{border-color:transparent;background:transparent;color:var(--green);box-shadow:none}.btn:disabled{transform:none;box-shadow:none}.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--green);font-size:12px;font-weight:600;background:none;border:0;padding:4px 0;cursor:pointer}.text-link:hover{text-decoration:underline}.text-link .ui-icon{width:16px;height:16px}.actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.panel{border:1px solid var(--border);border-radius:var(--radius);background:white;padding:24px;margin-bottom:22px;min-width:0}.panel>p{margin:12px 0}.section-head{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:20px}.section-sub{margin-top:6px;color:var(--muted);font-size:12px}.two-col{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:22px}.tile-icon{width:44px;height:44px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;background:#f0ebfa;color:var(--green);flex-shrink:0}.tile-icon .ui-icon{width:22px;height:22px}.pill{display:inline-flex;align-items:center;padding:4px 9px;border-radius:6px;font-size:11px;font-weight:550;background:#f0ebf9;color:#72579d;line-height:1.6;max-width:100%;overflow-wrap:anywhere}.pill.warn{background:#fbf1df;color:#956425}.pill.gray{background:#f1f2f5;color:#767281}.count-pill{font-size:12px;color:var(--muted)}.notice{background:#f3f0fa;color:#6b5b84;padding:14px 16px;border-radius:10px;font-size:13px;line-height:1.75}.notice p{margin:6px 0}.notice.warn{background:#fff5e5;color:#8e602a}.source-note{font-size:12px;color:var(--muted);line-height:1.7;margin:12px 0}.quiet-note{display:flex;align-items:center;justify-content:center;gap:7px;color:var(--muted);font-size:12px;margin-top:20px;line-height:1.65}.quiet-note .ui-icon{width:15px;height:15px}.bar{height:6px;background:#eae7f1;border-radius:6px;overflow:hidden;margin:16px 0 24px}.bar>div{height:100%;background:var(--green);border-radius:6px;transition:width .2s}.metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(145px,1fr));gap:16px;margin:24px 0}.metric{background:white;border:1px solid var(--border);border-radius:12px;padding:18px 20px;min-width:0}.metric-head{display:flex;justify-content:space-between;gap:8px;align-items:center;color:var(--muted);font-size:12px}.metric-head i{font-style:normal;color:#a295b7}.metric strong{display:block;font-size:28px;line-height:1.5;margin:6px 0;overflow-wrap:anywhere}.metric small{font-size:11px}.empty{text-align:center;padding:44px 24px}.empty p{color:var(--muted);margin:12px 0 22px}.step{display:flex;align-items:center;gap:14px;padding:13px 0}.step-num{width:32px;height:32px;display:grid;place-items:center;background:var(--light);border-radius:9px;color:var(--green);font-size:12px;font-weight:650;flex-shrink:0}.step h3{font-size:14px}.step p{font-size:12px;color:var(--muted);margin-top:3px}.step-arrow{margin-left:auto;color:#aaa1b5}.flow-note{padding-top:14px;margin-top:14px;border-top:1px solid var(--border);font-size:12px;color:var(--muted)}
/* Home: one next action, then the two learning goals. */
.resume-strip{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid #d9cdea;border-radius:14px;padding:18px 22px;margin-bottom:22px}.resume-strip>div{flex:1;min-width:0}.resume-strip strong{font-size:14px}.resume-strip p{font-size:12px;color:var(--muted);margin-top:3px}.today-grid{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(270px,1fr);gap:22px}.welcome-card{display:flex;align-items:center;justify-content:space-between;gap:15px;background:#efebf8;border:1px solid #e4ddf1;border-radius:18px;padding:30px;min-height:290px}.welcome-card>div:first-child{max-width:340px;min-width:0}.welcome-card h2{font-size:29px;line-height:1.45;color:#3f315d}.welcome-card p{font-size:13px;max-width:300px;margin:12px 0 24px;color:#7a6c8a}.welcome-cat{width:135px;flex-shrink:0;display:flex;align-items:center;flex-direction:column;position:relative}.welcome-cat img{width:105px;height:105px;transform:rotate(-9deg);box-shadow:0 10px 0 #dcd3ed;border-radius:30px}.cat-spark{font-size:34px;position:absolute;right:0;top:-32px;color:#b99764}.cat-caption{font-size:10px;letter-spacing:.04em;color:#9e8caf;transform:rotate(-5deg);margin-top:25px}.daily-card{background:#fff;border:1px solid var(--border);border-radius:18px;padding:25px}.daily-card .section-head{gap:8px;margin-bottom:20px}.daily-card h3{font-size:14px}.daily-card .pill{font-size:10px}.daily-count{font-size:36px;font-weight:700;letter-spacing:-.04em}.daily-count>span{font-size:13px;font-weight:400;letter-spacing:0;color:var(--muted)}.daily-card .bar{margin:12px 0 22px}.week-days{display:grid;grid-template-columns:repeat(7,1fr);gap:7px}.week-days>div{display:flex;flex-direction:column;align-items:center;gap:6px}.week-days span{font-size:10px;color:#8f889c}.week-days b{width:26px;height:26px;border-radius:50%;display:grid;place-items:center;background:#f5f3f8;color:#beb4ce;font-size:12px}.week-days b.active{background:#ebe3f8;color:#7854af}.daily-card>.text-link{margin-top:22px}.home-section-title{margin-top:34px;margin-bottom:18px}.home-section-title h2{font-size:19px}.home-section-title>.muted{font-size:12px}.home-routes{display:grid;grid-template-columns:1fr 1fr;gap:20px}.route-card{display:flex;align-items:center;gap:16px;text-align:left;padding:24px;border:1px solid var(--border);background:#fff;border-radius:16px;color:var(--ink);transition:border-color .15s,box-shadow .15s}.route-card:hover{border-color:#bda9e0;box-shadow:0 6px 22px #49326508}.route-card>div{flex:1;min-width:0}.route-card h3{font-size:17px}.route-card p{font-size:12px;color:var(--muted);margin-top:4px}.route-card>.ui-icon{color:#ad9bc7;width:18px;height:18px}.route-count{display:block;font-size:11px;color:#8b72b0;margin-top:12px}.review-route .tile-icon{background:#eaf2ee;color:#5f8a73}.review-route .route-count{color:#698a79}.home-links{display:flex;justify-content:space-between;gap:18px;margin-top:24px;color:#8a8295;font-size:12px}.home-links a{display:flex;align-items:center;gap:7px}.home-links .ui-icon{width:15px;height:15px}
/* Study hub: compact setup, two explicit goals, secondary controls disclosed. */
.study-setup{display:flex;align-items:center;gap:16px;padding:19px 22px;border:1px solid var(--border);border-radius:14px;background:#fff;margin-bottom:24px}.deck-select{flex:1;min-width:150px;display:flex;flex-direction:column;gap:4px}.deck-select label{font-size:11px;color:var(--muted)}.deck-select select{border:0;padding:3px 24px 3px 0;font-size:14px;font-weight:650;width:100%;max-width:100%;border-radius:4px;background:#fff}.size-options{position:relative;flex-shrink:0}.size-options summary{display:flex;align-items:center;gap:8px;font-size:12px;font-weight:500;list-style:none;min-height:44px;padding:4px 12px;border-left:1px solid var(--border);color:var(--muted)}.size-options summary::-webkit-details-marker{display:none}.size-options .ui-icon{width:16px;height:16px}.size-popover{position:absolute;right:0;top:48px;width:290px;background:#fff;border:1px solid var(--border);border-radius:12px;padding:18px;box-shadow:0 15px 40px #3829521a;z-index:20}.size-popover label{font-size:12px;font-weight:650;display:block;margin-bottom:10px}.size-popover input{width:130px}.size-popover p{font-size:11px;color:var(--muted);margin-top:12px}.study-mode-switch{display:flex;align-items:center;gap:6px;border-bottom:1px solid var(--border);margin-bottom:24px}.study-mode-switch button{display:flex;align-items:center;justify-content:center;gap:8px;padding:13px 19px 16px;font-size:14px;font-weight:600;color:var(--muted);border:0;border-bottom:3px solid transparent;background:none;margin-bottom:-1px;min-height:50px}.study-mode-switch button.active{border-color:var(--green);color:var(--green)}.study-mode-switch button>span{background:#edebf2;font-size:11px;line-height:1.5;padding:2px 7px;border-radius:6px}.study-mode-switch button.active>span{background:#e9e0f8}.study-mode-switch .ui-icon{width:18px;height:18px}.study-hub-grid{display:grid;grid-template-columns:minmax(0,1fr) 265px;gap:22px}.study-main-panel{background:#fff;border:1px solid var(--border);border-radius:18px;padding:30px;min-width:0}.mode-kicker{display:flex;align-items:center;gap:7px;font-size:10px;letter-spacing:.08em;font-weight:650;color:#8b72ae;margin-bottom:14px}.mode-kicker .ui-icon{width:16px;height:16px}.review-panel .mode-kicker{color:#6c8b7b}.study-main-panel h2{font-size:26px}.study-intro{font-size:14px;color:var(--muted);margin:12px 0 25px;max-width:580px;min-height:49px}.stage-rail{list-style:none;padding:0;margin:24px 0 28px;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:4px;position:relative}.stage-rail:before{content:"";position:absolute;top:15px;left:10%;right:10%;height:1px;background:var(--border)}.stage-rail li{display:flex;align-items:center;flex-direction:column;gap:8px;text-align:center;color:#928b9d;font-size:10px;font-weight:550;position:relative;min-width:0;line-height:1.45}.stage-number{width:30px;height:30px;display:flex;align-items:center;justify-content:center;border:1px solid var(--border);background:#fff;border-radius:50%;color:#9a91a6;font-size:11px}.stage-number .ui-icon{width:16px;height:16px}.stage-rail .is-current{color:var(--green);font-weight:650}.stage-rail .is-current .stage-number{color:white;background:var(--green);border-color:var(--green);box-shadow:0 0 0 4px #f2edf9}.stage-rail .is-done .stage-number{color:#7f62ad;background:#eee7f8;border-color:#eee7f8}.study-primary-action{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:28px}.study-primary-action .primary{min-height:48px;padding:12px 22px}.study-main-panel .quiet-note{justify-content:flex-start;margin-top:18px;font-size:11px}.study-secondary{margin-top:25px;padding-top:18px;border-top:1px solid #eeedf3}.study-secondary summary{font-size:12px;color:var(--muted);font-weight:500}.study-secondary .actions{margin-top:14px}.study-secondary .btn{font-size:12px;padding:9px 12px}.study-secondary p{font-size:11px;color:var(--muted);margin-top:12px}.study-side-panel{align-self:start;border:1px solid var(--border);background:#fff;border-radius:16px;padding:22px;min-width:0}.study-side-panel .section-head{gap:8px;margin-bottom:12px}.study-side-panel h3{font-size:13px}.study-side-panel .section-head .ui-icon{color:#aaa0bc;width:17px;height:17px}.deck-counts{margin:0}.deck-counts>div{display:flex;align-items:center;justify-content:space-between;padding:10px 0;gap:10px}.deck-counts dt{font-size:12px;color:var(--muted)}.deck-counts dd{font-size:15px;font-weight:650;margin:0}.content-alert{border:1px solid #eee2cb;background:#fffbf2;border-radius:10px;padding:13px;margin-top:18px}.content-alert strong{font-size:12px;color:#947242}.content-alert p{font-size:11px;color:#957d5c;margin:5px 0}.content-alert .text-link{font-size:11px}.content-details{border-top:1px solid var(--border);padding-top:16px;margin-top:18px}.content-details summary,.deck-tools summary{font-size:11px;color:var(--muted);font-weight:500}.content-details p{font-size:11px;color:var(--muted);margin:9px 0}.deck-tools{border-top:1px solid var(--border);padding-top:14px;margin-top:20px}.deck-tools>details{margin-top:12px}.deck-tools .danger{margin-top:12px}.review-explainer{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:24px 0}.review-explainer>div{padding:0 12px 0 0;border-right:1px solid var(--border)}.review-explainer>div:last-child{border:0;padding:0}.review-explainer span{display:block;font-size:11px;color:#8ba294;margin-bottom:7px}.review-explainer strong{display:block;font-size:12px;margin-bottom:5px}.review-explainer small{display:block;font-size:11px;line-height:1.65}.study-guide{margin-top:23px;max-width:800px;font-size:12px;color:var(--muted)}.study-guide summary{display:flex;align-items:center;gap:8px;font-weight:500}.study-guide summary .ui-icon{width:16px;height:16px}.study-guide p{margin:12px 0}.study-guide a{text-decoration:underline;color:var(--green)}details>summary{cursor:pointer;font-weight:600}details[open]>summary{margin-bottom:12px}
/* Focused lesson: only the card scrolls; the footer never belongs to that scroll area. */
body.lesson-active{overflow:hidden}.lesson-active .sidebar{display:none}.lesson-active main{margin:0;min-height:0;height:var(--lesson-height,100dvh);display:flex;flex-direction:column}.lesson-active .topbar{height:42px;flex:none;padding:0 28px;width:100%;max-width:960px;margin:0 auto;background:none;border-bottom:0;font-size:10px}.lesson-active .topbar .avatar{display:none}.lesson-active .private-badge{font-size:10px;background:none;padding-right:0}.lesson-active #app{width:100%;max-width:960px;flex:1;min-height:0;overflow:hidden;padding:12px 28px 0}.study-wrap{max-width:840px;margin:0 auto}.lesson-layout{height:100%;display:flex;flex-direction:column}.lesson-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;flex:none;margin-bottom:12px}.lesson-heading h1{font-size:24px;line-height:1.35}.lesson-heading .eyebrow{font-size:10px;margin:0 0 3px;letter-spacing:.09em}.lesson-heading>.btn{flex-shrink:0}.lesson-heading .btn .ui-icon{width:14px;height:14px}.lesson-layout .stage-rail{flex:none;margin:4px 0 16px}.lesson-layout .stage-rail li{font-size:10px;gap:5px}.study-meta{display:flex;align-items:center;justify-content:space-between;gap:16px;flex:none;font-size:11px;color:var(--muted)}.deck-name{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.study-meta>span:last-child{flex-shrink:0}.lesson-layout>.bar{flex:none;height:5px;margin:8px 0 16px}.study-card{background:white;border:1px solid var(--border);border-radius:18px;padding:24px 32px;min-width:0;text-align:center}.lesson-layout>.study-card{flex:1;min-height:0;overflow:auto;overscroll-behavior:contain;scrollbar-gutter:stable;margin:0;scroll-padding:20px}.study-card h2{overflow-wrap:anywhere;font-size:38px;line-height:1.4;font-weight:700;letter-spacing:-.035em}.card-topline{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:36px;flex:none;margin-bottom:10px}.card-kicker{font-size:10px;font-weight:650;letter-spacing:.09em;color:#9c8bb4;text-align:left}.icon-button{border:1px solid #ece6f3;border-radius:10px;background:#faf8fd;width:36px;height:36px;padding:7px;color:#80649f;display:inline-flex;justify-content:center;align-items:center;flex-shrink:0}.icon-button:hover{background:#f1eaf9}.icon-button .ui-icon{width:18px;height:18px}.flashcard{display:flex;flex-direction:column}.flip-area{background:none;border:0;width:100%;color:inherit;padding:26px 8px;flex:1;display:flex;align-items:center;justify-content:center;flex-direction:column;min-height:180px}.flip-area h2{font-size:44px}.flip-area>p.muted{font-size:14px;margin-top:14px}.flip-cue{display:flex;align-items:center;justify-content:center;gap:7px;font-size:11px;color:#a79ab6;margin-top:36px}.flip-cue .ui-icon{width:16px;height:16px}.flip-area.is-flipped{padding-top:10px;padding-bottom:14px;min-height:170px}.flip-area.is-flipped h2{font-size:25px;color:#9c8aaf;font-weight:500;letter-spacing:-.01em}.study-card .meaning{font-size:25px;line-height:1.6;font-weight:600;color:#4c376d;margin:12px auto;max-width:640px;overflow-wrap:anywhere}.word-pos{font-size:11px;color:#9b8eaa;margin:0 0 5px}.study-card .example{font-size:16px;line-height:1.8;color:#777082;max-width:600px;margin:14px auto;font-style:normal;overflow-wrap:anywhere}.collocation{display:flex;align-items:center;justify-content:center;gap:10px;padding:12px 14px;background:#f8f5fc;border-radius:10px;font-size:13px;flex-wrap:wrap;margin-top:10px}.collocation>span{font-size:10px;color:#9582a9}.collocation>strong{color:#70578e;font-weight:600;overflow-wrap:anywhere}.collocation .icon-button{border:0;background:transparent}.card-details{padding:16px 4px 3px;flex:none;color:var(--muted);font-size:13px}.card-details summary{font-size:12px;font-weight:500;color:#8e76aa}.card-details[open]{text-align:left}.card-details[open]>summary{text-align:center}.card-details .example{font-size:14px}.card-details p{margin-top:12px}.question-key{font-size:10px;color:#aba2b6}.study-card .choice-term{font-size:34px;margin:18px 0 24px}.choices{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:12px;margin:20px 0}.choice{display:flex;align-items:center;gap:12px;border:1px solid #e4dfed;border-radius:12px;padding:16px 18px;min-height:62px;background:white;color:var(--ink);text-align:left;font-size:14px;line-height:1.65}.choice:hover{background:#faf8fe;border-color:#b6a1d6}.choice-letter{width:26px;height:26px;border:1px solid #e9e3f1;border-radius:7px;display:grid;place-items:center;color:#a191b5;font-size:11px;flex-shrink:0}.choice>span:nth-child(2){flex:1;overflow-wrap:anywhere}.choice.correct{border-color:#9cc6b0;background:#eff8f2;color:#447d61}.choice.wrong{border-color:#e4b9a4;background:#fff5ee;color:#a36442}.choice:disabled{opacity:1;cursor:default}.choice:disabled:not(.correct):not(.wrong){color:#a5a0ac;background:#fafafa;border-color:#eeedf0}.study-card .definition{font-size:25px;line-height:1.65;font-weight:550;color:#443358;max-width:650px;margin:24px auto 28px;overflow-wrap:anywhere}.answer-form{display:flex;flex-wrap:wrap;gap:8px;max-width:590px;margin:22px auto}.answer-form label{width:100%;text-align:left;font-size:11px;font-weight:550;color:#92809f}.answer-form input{width:100%;min-width:0;font-size:18px;padding:15px 17px;border-radius:11px;background:#fcfbfe;border-color:#ddd3ea;line-height:1.5}.answer-form input:focus{border-color:#9a80c5;outline:2px solid #e5dbf4;outline-offset:2px}.answer-form input:disabled{color:#8c8298;background:#f7f6fa}.answer-help{max-width:590px;display:flex;align-items:center;justify-content:space-between;gap:15px;margin:4px auto 15px}.answer-help .text-link{font-size:11px;color:#8f77aa;min-height:32px}.listen-prompt{display:flex;align-items:center;justify-content:center;gap:25px;margin:30px auto}.listen-prompt h2{font-size:21px;letter-spacing:-.02em}.listen-prompt>div{text-align:left}.listen-prompt .text-link{font-size:12px;margin-top:6px}.sound{border:1px solid #e0d5f1;border-radius:24px;background:#eee7fa;width:84px;height:84px;display:inline-grid;place-items:center;color:var(--green);flex-shrink:0}.sound:hover{background:#e6dcf6}.sound .ui-icon{width:31px;height:31px}.context-counter{font-size:11px;color:#9883ac;margin:0}.review-status{display:flex;align-items:center;gap:20px;flex:none;margin:3px 0 20px}.review-status>span{display:flex;align-items:center;gap:6px;font-size:11px;color:#a59bad}.review-status .ui-icon{width:15px;height:15px}.review-status .active{color:#755496;font-weight:600}.hint-box{padding:10px 14px;max-width:590px;text-align:left;margin:14px auto;font-size:12px}.feedback{padding:16px 20px;background:#eff7f2;border:1px solid #d9eadf;border-radius:12px;text-align:left;margin-top:20px;color:#4e7b62;line-height:1.65}.feedback.wrong{background:#fff7ee;border-color:#efdfcb;color:#9a744a}.feedback-answer{display:flex;align-items:flex-start;gap:12px}.feedback-answer strong{font-size:13px}.feedback-answer p{font-size:17px;margin-top:4px;color:#574467}.feedback-answer p span{color:#86778e;font-size:13px}.feedback-symbol{width:26px;height:26px;border-radius:50%;background:#dfeee4;display:grid;place-items:center;flex-shrink:0}.feedback.wrong .feedback-symbol{background:#f5e8d7}.feedback-symbol .ui-icon{width:16px;height:16px}.study-card .feedback .example{font-size:13px;margin:12px 0 4px;max-width:none;color:#7d7580}.feedback .text-link{font-size:12px;margin-top:6px}.correction-details{margin-top:15px;border-top:1px solid #eadfcd;padding-top:12px}.correction-details summary{font-size:12px;font-weight:500}.spelling-diff{font-family:ui-monospace,"Cascadia Code",Consolas,monospace;font-size:20px;white-space:pre-wrap;overflow-wrap:anywhere;margin:12px 0;padding:12px;background:#fff;border-radius:8px;color:var(--ink)}.spelling-diff mark{background:#e2efcf;color:#35522a;border-radius:3px;padding:2px}.spelling-diff del{background:#f8dad4;color:#943a2c;padding:2px}.error-label{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:12px}.error-label select{font-size:12px;padding:8px}.feedback .source-note{font-size:11px}.feedback .answer-form{max-width:none;margin:12px 0 0;flex-wrap:nowrap}.feedback .answer-form input{font-size:14px;flex:1;padding:10px 12px}.feedback .answer-form button{flex:none}.lesson-dock{display:flex;align-items:center;justify-content:space-between;gap:18px;flex:none;padding:18px 0 12px;min-height:82px}.lesson-dock>.btn{min-height:48px;min-width:170px;font-size:14px;padding:12px 22px}.dock-message{display:flex;align-items:center;gap:9px;font-size:12px;color:#92849f;max-width:65%}.dock-message .ui-icon{width:17px;height:17px}.is-correct .dock-message{color:#5c9273}.is-practice .dock-message{color:#a17f52}.dock-shortcut{font-size:11px;color:#aaa0b4}.lesson-more{flex:none;text-align:center;font-size:11px;color:#a398af;padding:0 0 calc(10px + env(safe-area-inset-bottom));max-height:120px;overflow:auto}.lesson-more summary{font-weight:400}.lesson-more p{margin:5px 0 10px}.lesson-more[open]{border-top:1px solid var(--border);padding-top:10px}.lesson-active #due-reminder{display:none}.lesson-active #toast{bottom:105px}.classification-card{display:flex;flex-direction:column}.card-center{display:flex;align-items:center;justify-content:center;flex-direction:column;flex:1;min-height:175px;padding:18px 0}.card-center>p.muted{font-size:13px;margin-top:20px;max-width:450px}.card-center .collocation{font-size:12px}.card-center>.btn{margin-top:15px}.classification-dock{flex:none;padding-top:12px}.classification-prompt{display:flex;align-items:center;justify-content:space-between;gap:15px;min-height:44px;font-size:12px;color:var(--muted)}.classification-prompt>strong{font-weight:500;color:#8b72a9}.classification{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin:12px 0}.class-btn{padding:13px 8px;border:1px solid var(--border);background:#fff;color:#807187;border-radius:11px;text-align:center;min-width:0}.class-btn strong{display:block;font-size:14px;margin-bottom:3px}.class-btn small{font-size:10px;font-weight:400;color:#a496ac}.class-btn:last-child{background:var(--green);border-color:var(--green);color:#fff}.class-btn:last-child small{color:#ded4ef}.class-btn:hover:not(:disabled){border-color:#aa90cc;box-shadow:0 2px 0 #d9cfea}.empty-context{display:flex;flex-direction:column;justify-content:center;align-items:center;gap:15px}.empty-context h2{font-size:25px}.empty-context p{max-width:560px;font-size:14px}.empty-context>.tile-icon{margin-bottom:8px}
/* Completion has one next step; details remain available. */
.result-layout{max-width:830px;margin:8px auto}.result-hero{background:#fff;border:1px solid var(--border);border-radius:20px;padding:38px;text-align:center}.success-icon{width:68px;height:68px;margin:0 auto 24px;border-radius:50%;background:#eee8f9;color:#8261b0;display:grid;place-items:center}.success-icon .ui-icon{width:32px;height:32px}.result-hero h1{font-size:30px}.result-hero>p{font-size:14px;color:var(--muted);margin:12px auto;max-width:560px}.result-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));margin:30px 0 25px;border:1px solid var(--border);border-radius:12px;background:#fcfbfe;padding:20px 8px}.result-stats>div{border-right:1px solid var(--border);padding:0 8px;display:flex;flex-direction:column}.result-stats>div:last-child{border:0}.result-stats strong{font-size:28px;font-weight:700}.result-stats strong small{font-size:13px;color:#a096ac;font-weight:400}.result-stats span{font-size:11px;color:var(--muted);margin-top:5px}.result-actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}.result-hero>.quiet-note{font-size:11px;margin-top:22px}.result-notice{display:flex;align-items:center;gap:14px;padding:19px 22px;border:1px solid #eadeca;background:#fffaf2;border-radius:14px;margin:20px 0;color:#a18761}.result-notice>div{flex:1}.result-notice strong{font-size:13px}.result-notice p{font-size:12px;margin-top:3px}.result-words{margin-top:20px}.result-words summary{font-size:13px}.word-row{display:flex;align-items:center;gap:12px;padding:15px 0;border-bottom:1px solid #eeedf2}.word-row:last-child{border:0}.word-row>div{min-width:0}.word-row strong{font-size:14px;overflow-wrap:anywhere}.word-row p{font-size:12px;color:var(--muted);margin:4px 0 0}.word-row .pill{margin-left:auto}.word-index{font-size:10px;color:#aba0b7;flex-shrink:0;width:20px}.chips{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0}.chip{padding:6px 10px;border-radius:7px;background:#f7f5fa;border:1px solid var(--border);font-size:12px;color:var(--muted)}.chip.missing{color:#a07c44;border-color:#ead8bd}.activity{display:flex;gap:6px;margin:20px 0}.activity div{height:32px;flex:1;border-radius:5px;background:#efebf5}.activity .on{background:#9c7ec5}
/* Collection, import and settings share the same typography and controls. */
input,textarea,select{border:1px solid var(--border);background:#fff;border-radius:9px;padding:11px 12px;color:var(--ink);min-width:0;max-width:100%}textarea{width:100%;resize:vertical;line-height:1.7}input[type=checkbox]{width:16px;height:16px;accent-color:var(--green);flex-shrink:0}input[type=range]{accent-color:var(--green)}.field{display:flex;flex-direction:column;gap:7px;margin-bottom:18px}.field label{font-size:12px;font-weight:600;color:#7f6f90}.field .source-note{margin:0;font-size:11px}.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:20px}.toolbar input{flex:1;min-width:180px}.toolbar select{font-size:12px;max-width:100%}.toolbar .btn{font-size:12px}.table-wrap{overflow:auto}table{border-collapse:collapse;width:100%;font-size:13px}th{text-align:left;font-size:11px;font-weight:550;color:#9788a6;background:#f9f7fc;padding:13px;white-space:nowrap}td{padding:16px 13px;border-bottom:1px solid #eeedf2}td strong{font-size:14px}td .meaning{min-width:150px;max-width:290px;line-height:1.6}td .source-note{font-size:11px}.import-review-list{display:grid;gap:14px;margin-top:20px}.import-review{border:1px solid var(--border);border-radius:12px;padding:18px;background:white}.import-review.incomplete{border-color:#eacb9e;background:#fffaf2}.import-review .section-head{margin-bottom:9px}.import-review p{margin:6px 0;font-size:13px;overflow-wrap:anywhere}.import-review b{color:#80629f}.import-enrich{display:flex;align-items:flex-start;gap:10px;background:var(--light);padding:14px;border-radius:10px;font-size:13px}.import-enrich input{margin-top:4px}#prompt-output{font-size:13px;line-height:1.7}.recovery-row{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:18px 0;border-bottom:1px solid var(--border)}.recovery-row p{font-size:13px;color:var(--muted);margin:5px 0}.sound-toggle{display:flex;align-items:center;gap:12px;margin:20px 0}.sound-toggle input{width:20px;height:20px}#sound-volume{max-width:360px}#cloud-panel{margin-bottom:24px}.due-reminder{display:flex;justify-content:space-between;align-items:center;gap:16px;margin:20px 40px 0;padding:12px 18px;background:#fbf6ec;border:1px solid #efe3ce;border-radius:12px;color:#977644;font-size:12px}dialog{border:1px solid var(--border);border-radius:18px;max-width:700px;width:calc(100% - 32px);padding:28px;color:var(--ink);max-height:90dvh;overflow:auto}dialog::backdrop{background:#30283d50;backdrop-filter:blur(3px)}.dialog-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:24px}.dialog-head button{background:none;border:0;font-size:24px;color:var(--muted);width:36px;height:36px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}.full{grid-column:1/-1}#toast{display:none;position:fixed;bottom:25px;left:50%;transform:translateX(-50%);border-radius:12px;background:#443454;color:white;font-size:13px;line-height:1.7;padding:14px 22px;box-shadow:0 5px 25px #35224620;z-index:100;max-width:90%;width:max-content}
@media(min-width:1500px){#app{padding-top:42px}.welcome-card{min-height:310px}.study-main-panel{padding:36px}}
@media(max-width:1100px){.sidebar{width:196px;padding:28px 14px}main{margin-left:196px}.brand{font-size:26px}nav a{font-size:12px;gap:9px;padding:11px}.topbar{padding:0 26px}#app{padding:28px 26px}.today-grid{grid-template-columns:minmax(0,1.5fr) minmax(245px,1fr);gap:16px}.welcome-card{padding:25px}.welcome-cat{width:95px}.welcome-cat img{width:78px;height:78px;border-radius:24px}.welcome-card h2{font-size:25px}.daily-card{padding:22px}.study-hub-grid{grid-template-columns:minmax(0,1fr) 235px;gap:18px}.study-main-panel{padding:25px}.study-side-panel{padding:20px}.study-setup{gap:12px;padding:17px}.study-setup>.tile-icon{display:none}.study-setup>.btn{font-size:11px}.size-options summary{font-size:11px;padding:4px 9px}.route-card{padding:20px}.route-card h3{font-size:16px}.panel{padding:22px}.section-head{gap:12px}.metrics{gap:12px}.metric{padding:16px}}
@media(max-width:900px){.study-hub-grid{grid-template-columns:1fr}.study-side-panel{display:grid;grid-template-columns:1fr 1fr;gap:0 26px}.study-side-panel>.section-head{grid-column:1/-1}.deck-tools{margin-top:12px}.content-alert,.content-details{margin-top:12px}.today-grid{grid-template-columns:1fr}.welcome-card{min-height:255px}.welcome-cat{width:150px}.welcome-cat img{width:110px;height:110px;border-radius:30px}.daily-card{padding:22px}.daily-card .daily-count{font-size:30px}.daily-card .week-days{max-width:320px}.daily-card>.text-link{margin-top:18px}.daily-card .bar{margin-bottom:18px}.daily-card .section-head{margin-bottom:8px}.two-col{gap:18px}.home-routes{gap:16px}.route-card{gap:12px;align-items:flex-start}.route-card .tile-icon{width:36px;height:36px}.route-card>.ui-icon{display:none}.page-title .btn{font-size:12px;padding:10px 14px}.page-title h1{font-size:27px}}
@media(max-width:760px){body{font-size:14px}.sidebar{position:static;width:100%;height:67px;padding:14px 20px;display:flex;flex-direction:row;align-items:center;border-right:0;border-bottom:1px solid var(--border)}.brand{font-size:25px;margin:0;padding:0;gap:9px}.cat-logo{width:33px;height:33px}.sidebar-label,.sidebar-bottom{display:none}.sidebar nav{position:fixed;bottom:0;left:0;right:0;height:calc(66px + env(safe-area-inset-bottom));padding:7px 8px calc(7px + env(safe-area-inset-bottom));flex-direction:row;justify-content:space-around;background:#fffffff5;border-top:1px solid var(--border);z-index:30;gap:5px;backdrop-filter:blur(10px)}nav a{flex:1;display:flex;flex-direction:column;justify-content:center;gap:3px;font-size:9px;padding:5px 3px;border-radius:9px;min-width:0}nav a.active{background:#f4effb}nav a .ui-icon{width:20px;height:20px}nav b{display:none}main{margin-left:0}.topbar{height:44px;padding:0 20px;border-bottom:0;background:var(--bg);gap:10px;font-size:10px}.topbar .avatar{display:none}.private-badge{font-size:10px;max-width:65%;padding:3px 0;background:none}#breadcrumb{font-size:9px}#app{padding:20px 18px calc(92px + env(safe-area-inset-bottom));min-height:calc(100vh - 111px)}.page-title{align-items:flex-start;flex-wrap:wrap;gap:14px;margin-bottom:22px}.page-title h1{font-size:25px}.page-title p{font-size:13px}.eyebrow{font-size:9px;margin-bottom:7px}.page-title>.btn{font-size:11px;min-height:38px;padding:8px 12px}.panel{padding:20px;margin-bottom:18px}.two-col{grid-template-columns:1fr;gap:0}.section-head{flex-wrap:wrap;gap:10px}.btn.small{min-height:40px}.text-link{min-height:32px}.notice{font-size:12px}.source-note{font-size:11px}.metrics{grid-template-columns:1fr 1fr;gap:10px}.metric{padding:14px}.metric strong{font-size:26px}.metric small{font-size:10px}.metric-head{font-size:11px}.resume-strip{padding:15px;gap:10px;flex-wrap:wrap}.resume-strip .tile-icon{width:34px;height:34px}.resume-strip strong{font-size:12px}.resume-strip .btn{font-size:11px;min-height:38px;padding:8px 12px}.resume-strip p{font-size:11px}.today-grid{gap:18px}.welcome-card{padding:24px;min-height:265px}.welcome-card h2{font-size:26px}.welcome-card .eyebrow{font-size:8px;letter-spacing:.1em}.welcome-card p{font-size:12px;max-width:235px;margin:12px 0 22px}.welcome-cat{width:94px}.welcome-cat img{width:78px;height:78px;border-radius:23px}.cat-spark{font-size:27px;top:-25px}.cat-caption{font-size:8px;margin-top:22px}.welcome-card .btn{font-size:12px;padding:10px 15px}.daily-card{padding:22px}.daily-card .week-days{max-width:none}.home-section-title{margin-top:28px;align-items:flex-start}.home-section-title h2{font-size:17px}.home-section-title .muted{font-size:11px}.home-routes{grid-template-columns:1fr;gap:12px}.route-card{align-items:center;padding:21px;gap:15px}.route-card .tile-icon{width:42px;height:42px}.route-card h3{font-size:16px}.route-card>.ui-icon{display:block}.route-card p{font-size:12px}.route-count{margin-top:7px}.home-links{font-size:11px;margin-top:22px;gap:10px;flex-wrap:wrap}.study-setup{display:flex;flex-wrap:wrap;gap:12px;padding:17px;margin-bottom:18px}.deck-select{flex:auto;width:100%}.deck-select select{font-size:14px;padding:8px 22px 4px 0}.size-options{flex:1}.size-options summary{padding:0;border:0;font-size:11px;min-height:38px;justify-content:flex-start}.size-popover{left:0;right:auto;top:42px;width:min(290px,calc(100vw - 70px))}.study-setup>.btn{padding:7px 10px;font-size:11px;min-height:36px}.study-mode-switch{margin-bottom:18px;gap:0}.study-mode-switch button{flex:1;min-width:0;padding:12px 9px 14px;font-size:13px;gap:6px}.study-mode-switch .ui-icon{width:16px;height:16px}.study-mode-switch button>span{font-size:10px;padding:2px 6px}.study-main-panel{padding:24px 21px}.study-main-panel h2{font-size:23px}.study-intro{font-size:13px;margin:10px 0 22px;min-height:0}.mode-kicker{font-size:9px;letter-spacing:.04em}.stage-rail{margin:24px 0}.stage-rail li{font-size:9px;gap:7px}.stage-number{width:28px;height:28px;font-size:10px}.stage-rail:before{top:14px}.study-primary-action{margin-top:25px}.study-primary-action .btn{width:100%;min-height:48px;font-size:13px}.study-primary-action .text-button{min-height:34px;padding:5px}.study-main-panel .quiet-note{font-size:10px;justify-content:center;gap:5px}.study-secondary{margin-top:20px}.study-secondary summary{font-size:11px;min-height:28px}.study-secondary .btn{min-height:42px}.study-secondary p{font-size:10px}.study-side-panel{display:block;padding:20px 22px}.study-side-panel h3{font-size:14px}.study-hub-grid{gap:18px}.deck-counts>div{padding:9px 0}.deck-counts dt{font-size:12px}.deck-counts dd{font-size:15px}.deck-tools{display:flex;align-items:flex-start;justify-content:space-between;gap:10px}.deck-tools>details{margin-top:5px}.content-alert strong{font-size:12px}.content-details summary,.deck-tools summary{font-size:11px}.review-explainer{gap:10px;margin:22px 0}.review-explainer>div{padding-right:8px}.review-explainer strong{font-size:11px}.review-explainer small{font-size:10px}.study-guide{margin-top:20px;font-size:11px}.study-guide summary{font-size:11px;line-height:1.7}.study-guide summary .ui-icon{flex-shrink:0}.lesson-active .sidebar{display:none}.lesson-active .topbar{height:32px;padding:0 15px;font-size:9px}.lesson-active .private-badge{font-size:9px}.lesson-active #app{padding:9px 14px 0;min-height:0}.lesson-heading{gap:12px;margin-bottom:14px}.lesson-heading h1{font-size:20px}.lesson-heading .eyebrow{font-size:9px;letter-spacing:.05em}.lesson-heading .btn{font-size:11px;min-height:36px;padding:7px 10px}.lesson-heading .btn .ui-icon{display:none}.lesson-layout .stage-rail{margin:0 0 14px}.lesson-layout .stage-rail li{font-size:8px;gap:5px}.lesson-layout .stage-number{width:25px;height:25px;font-size:9px}.lesson-layout .stage-rail:before{top:12px}.study-meta{font-size:10px;gap:10px}.lesson-layout>.bar{margin:7px 0 12px;height:4px}.lesson-layout>.study-card{border-radius:15px;padding:15px 18px;scroll-padding:15px}.card-topline{min-height:32px;margin-bottom:6px;gap:10px}.card-kicker{font-size:8px;letter-spacing:.06em}.icon-button{width:34px;height:34px}.flip-area{padding:22px 0;min-height:180px}.flip-area h2{font-size:35px}.flip-area>p.muted{font-size:12px}.flip-cue{font-size:10px;margin-top:28px}.flip-area.is-flipped{min-height:170px;padding:12px 0}.flip-area.is-flipped h2{font-size:22px}.study-card .meaning{font-size:22px;line-height:1.5;margin:12px auto}.study-card .example{font-size:14px;margin:12px auto;line-height:1.8}.collocation{font-size:12px;gap:8px;padding:9px 11px;margin-top:8px}.collocation>span{font-size:9px}.card-details{padding-top:14px;font-size:12px}.card-details summary{font-size:11px}.card-details .example{font-size:13px}.question-key{display:none}.study-card .choice-term{font-size:29px;margin:14px 0 20px}.choices{grid-template-columns:1fr;gap:9px;margin:14px 0}.choice{padding:12px 13px;min-height:53px;font-size:13px;gap:10px}.choice-letter{width:24px;height:24px;font-size:10px}.study-card .definition{font-size:21px;line-height:1.6;margin:22px auto}.answer-form{margin:22px auto 15px}.answer-form label{font-size:10px}.answer-form input{font-size:17px;padding:13px}.answer-help .text-link{min-height:40px;font-size:10px}.answer-help{gap:10px}.listen-prompt{gap:18px;margin:22px auto 28px}.sound{width:67px;height:67px;border-radius:20px}.sound .ui-icon{width:27px;height:27px}.listen-prompt h2{font-size:18px}.listen-prompt .text-link{font-size:11px}.context-counter{font-size:9px}.review-status{gap:15px;margin:0 0 18px}.review-status>span{font-size:10px}.hint-box{font-size:11px;margin:12px auto}.feedback{padding:14px;margin-top:16px}.feedback-answer{gap:9px}.feedback-answer strong{font-size:12px}.feedback-answer p{font-size:16px;line-height:1.65}.feedback-answer p span{font-size:12px}.study-card .feedback .example{font-size:12px}.feedback-symbol{width:22px;height:22px}.feedback .answer-form{flex-wrap:wrap}.feedback .answer-form input{flex:auto}.correction-details summary{font-size:11px}.lesson-dock{min-height:77px;padding:14px 0 10px;gap:12px}.lesson-dock>.btn{min-width:140px;min-height:46px;font-size:13px;padding:11px 16px}.dock-message{font-size:10px;max-width:55%;line-height:1.65;gap:6px}.dock-message>.ui-icon{display:none}.dock-shortcut{font-size:10px}.lesson-more{font-size:9px;padding-bottom:calc(9px + env(safe-area-inset-bottom))}.classification-prompt{font-size:10px;gap:10px;min-height:42px}.classification-prompt .btn{min-height:40px;font-size:12px;padding:9px 15px}.classification{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin:10px 0}.class-btn{padding:10px 6px}.class-btn strong{font-size:12px;margin-bottom:2px}.class-btn small{font-size:9px}.card-center{min-height:160px;padding:12px 0}.card-center h2{font-size:31px}.card-center>p.muted{font-size:12px;margin-top:16px}.classification-dock{padding-top:9px}.empty-context h2{font-size:21px}.empty-context p{font-size:13px}.result-layout{margin:5px auto}.result-hero{padding:28px 20px}.result-hero h1{font-size:26px}.result-hero>p{font-size:13px}.result-stats{padding:17px 4px;margin:24px 0}.result-stats strong{font-size:23px}.result-stats strong small{font-size:11px}.result-stats span{font-size:10px}.result-actions .btn{width:100%;font-size:13px}.result-hero>.quiet-note{font-size:10px}.result-notice{flex-wrap:wrap;padding:18px;gap:10px}.result-notice .btn{margin-left:30px}.result-notice strong{font-size:12px}.result-notice p{font-size:11px}.toolbar>*{width:100%}.toolbar .btn{width:auto}.toolbar input{min-width:0}.toolbar select{font-size:13px}.toolbar{gap:9px}.table-wrap td{padding:14px 9px}.table-wrap th{padding:12px 9px}.panel>.section-head .actions{gap:7px}.panel>.section-head .btn{font-size:11px;padding:8px 10px}.form-grid{grid-template-columns:1fr}.full{grid-column:1}.field label{font-size:12px}.field input,.field select,.field textarea{font-size:16px}dialog{padding:22px}.recovery-row{align-items:flex-start;flex-direction:column;gap:12px}.due-reminder{margin:14px 18px 0;flex-wrap:wrap;font-size:11px;padding:12px 15px}.word-row p{font-size:11px}.word-row .pill{font-size:10px;max-width:40%}.word-row strong{font-size:13px}#toast{bottom:88px;font-size:12px;padding:12px 17px}.lesson-active #toast{bottom:110px}}
@media(max-width:380px){.welcome-cat{display:none}.welcome-card>div:first-child{max-width:none}.study-mode-switch button{font-size:12px}.study-mode-switch .ui-icon{display:none}.lesson-dock>.btn{min-width:125px;font-size:12px}.stage-rail li{font-size:8px}.listen-prompt{gap:12px}.listen-prompt h2{font-size:16px}.study-card .definition{font-size:19px}.lesson-heading h1{font-size:19px}.resume-strip>.btn{width:100%}.lesson-active .topbar{height:30px}.private-badge{font-size:9px}}
@media(max-height:560px){.lesson-layout .stage-rail,.lesson-heading .eyebrow,.lesson-more{display:none}.lesson-active .topbar{height:25px}.lesson-active #app{padding-top:6px}.lesson-heading{margin-bottom:7px}.lesson-heading h1{font-size:18px}.lesson-layout>.bar{margin:5px 0 8px}.lesson-dock{min-height:60px;padding:8px 0}.lesson-dock>.btn{min-height:40px;padding:8px 15px}.classification{grid-template-columns:repeat(4,minmax(0,1fr));gap:6px;margin:8px 0}.class-btn{padding:8px 4px}.class-btn small{font-size:8px}.class-btn strong{font-size:11px}.classification-prompt{min-height:35px}.classification-dock{padding-top:6px}.review-status{margin-bottom:9px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
/* visualViewport also shrinks when a phone keyboard opens. */
.lesson-active.compact-lesson .stage-rail,.lesson-active.compact-lesson .lesson-heading .eyebrow,.lesson-active.compact-lesson .lesson-more{display:none}.lesson-active.compact-lesson .topbar{height:25px}.lesson-active.compact-lesson #app{padding-top:6px}.lesson-active.compact-lesson .lesson-heading{margin-bottom:7px}.lesson-active.compact-lesson .lesson-heading h1{font-size:18px}.lesson-active.compact-lesson .lesson-layout>.bar{margin:5px 0 8px}.lesson-active.compact-lesson .lesson-dock{min-height:60px;padding:8px 0}.lesson-active.compact-lesson .lesson-dock>.btn{min-height:40px;padding:8px 15px}.lesson-active.compact-lesson .review-status{margin-bottom:9px}

/* Multiple deck selection and focused practice */
.deck-picker-trigger{display:flex;align-items:center;justify-content:space-between;gap:12px;width:100%;border:0;background:transparent;text-align:left;color:var(--ink);padding:3px 0;font-weight:700;font-size:16px}.deck-picker-trigger .ui-icon{width:16px}.deck-select>small{display:block;margin-top:4px;font-size:11px}
#deck-picker{width:min(590px,calc(100% - 28px));padding:26px;overflow:hidden}#deck-picker-content{display:flex;flex-direction:column;max-height:calc(85dvh - 52px)}#deck-search{width:100%;border:1px solid var(--border);border-radius:10px;padding:12px 14px;min-height:46px;margin:8px 0 14px}#deck-picker .dialog-head{align-items:flex-start;margin-bottom:4px}.deck-bulk-actions{display:flex;justify-content:space-between;gap:12px;margin-bottom:14px}.deck-checkbox-list{overflow-y:auto;min-height:100px;overscroll-behavior:contain;display:flex;flex-direction:column;gap:8px;padding:3px}.deck-checkbox-row{display:flex;align-items:center;gap:13px;padding:14px;border:1px solid var(--border);border-radius:12px;cursor:pointer}.deck-checkbox-row:has(input:checked){border-color:#b39bdc;background:#f6f2fc}.deck-checkbox-row input{width:18px;height:18px;accent-color:var(--green);flex-shrink:0}.deck-checkbox-row strong,.deck-checkbox-row small{display:block;overflow-wrap:anywhere}.deck-checkbox-row small{font-size:11px;margin-top:3px}.deck-dialog-footer{display:flex;justify-content:space-between;align-items:center;gap:12px;border-top:1px solid var(--border);padding-top:18px;margin-top:18px}.deck-dialog-footer>span{font-size:12px;color:var(--muted)}
.practice-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:22px 0}.practice-tile{display:flex;flex-direction:column;align-items:flex-start;gap:12px;background:#fff;border:1px solid var(--border);border-radius:14px;padding:22px}.practice-tile h3{font-size:16px}.practice-tile p{font-size:12px;color:var(--muted);flex:1}.practice-tile .btn{width:100%;font-size:12px}.practice-tile .text-link{align-self:center}.weak-summary{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:20px;border:1px solid #e4d9ef;border-radius:12px;padding:16px 20px;background:#faf7ff}.weak-summary p,.scope-note{font-size:12px;color:var(--muted)}.scope-note{margin:12px 0 0}.weak-summary .btn{flex-shrink:0}.self-grade-actions,.effort-actions{display:flex;align-items:center;gap:9px}.self-grade-actions{margin-left:auto}.self-grade-actions .btn{min-height:46px}.effort-actions .btn.active{border-color:var(--green);background:var(--light);color:var(--green)}.effort-actions small{font-size:11px;color:var(--muted)}.meaning-reveal{margin:20px auto 0;padding:18px 24px;border-radius:12px;background:var(--light);max-width:650px;font-size:22px;color:var(--green)}.self-instruction{margin-top:18px;color:var(--muted);font-size:13px}.wait-card{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;text-align:center}.wait-card>p{max-width:490px;font-size:14px}.save-note{font-size:11px;color:var(--muted);margin-top:10px}.skill-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(155px,1fr));gap:12px}.skill-grid article{border:1px solid var(--border);border-radius:11px;padding:16px}.skill-grid strong{display:block;font-size:23px;margin-top:8px}.skill-grid small{display:block;font-size:11px}.scope-badge{display:flex;align-items:center;gap:12px;margin-bottom:14px;font-size:12px;color:var(--green)}
@media(max-width:900px){.practice-grid{grid-template-columns:1fr}.practice-tile{display:grid;grid-template-columns:44px 1fr;gap:10px 14px}.practice-tile .tile-icon{grid-row:1/3}.practice-tile p{grid-column:2}.practice-tile .btn,.practice-tile .text-link{grid-column:2}.effort-actions{flex-wrap:wrap}.effort-actions small{width:100%}}
@media(max-width:760px){.deck-picker-trigger{font-size:14px}#deck-picker{padding:20px}#deck-picker-content{max-height:calc(88dvh - 40px)}.deck-checkbox-row{padding:12px}.weak-summary{flex-wrap:wrap;padding:16px}.self-grade-actions{width:100%;margin:0;gap:8px}.self-grade-actions .btn{flex:1;font-size:12px;padding:10px}.lesson-dock:has(.self-grade-actions)>.dock-message{display:none}.effort-actions{gap:5px}.effort-actions .btn{font-size:10px;padding:7px 9px;min-height:34px}.effort-actions small{font-size:9px}.lesson-dock:has(.effort-actions){gap:10px}.lesson-dock:has(.effort-actions)>.btn{min-width:108px}.meaning-reveal{font-size:18px;padding:15px}.self-instruction{font-size:12px}.study-mode-switch button{padding-inline:10px;font-size:12px}.deck-bulk-actions .text-link{font-size:11px}}

.feedback>.text-link{margin-right:18px;margin-top:8px}.study-side-panel .weak-summary{display:block;padding:14px}.study-side-panel .weak-summary p{margin:7px 0}.study-side-panel .weak-summary .btn{width:100%;white-space:normal}.self-result{font-size:13px;color:var(--muted);margin:16px 0}.effort-actions{margin-top:7px}
/* Make the session size control recognizable on small screens. */
.size-options summary{border:1px solid var(--border);border-radius:10px;background:#f8f5fd;color:#382b53;padding:8px 12px;gap:5px;white-space:nowrap}
.size-options summary strong{color:#674db2}
@media(max-width:760px){.size-options{flex:1 1 auto}.size-options summary{border:1px solid var(--border);padding:8px 11px;font-size:12px}}