/* V4 learner surfaces. Learning data and account contracts are unchanged. */
:root{--ink:#1b2b42;--muted:#6a778b;--blue:#315de6;--line:#e4e9f1;--paper:#f7f9fc}body.app-product{background:#eef1f6;font-size:15px;-webkit-font-smoothing:antialiased}.app-product .site-header{display:none}.app-product #app{max-width:470px;margin:auto;min-height:100dvh;background:var(--paper);display:flex;flex-direction:column}.app-product svg{width:22px;height:22px;stroke-width:1.7;flex-shrink:0}.app-product button{border:0}.app-product button:active,.app-product a:active{opacity:.85}.app-product .app-header{min-height:65px;display:flex;gap:10px;align-items:center;justify-content:space-between;padding:calc(10px + env(safe-area-inset-top)) 20px 10px;background:var(--paper)}.app-header h2{font-size:24px;letter-spacing:-1px;font-weight:750}.app-header:has(a[href="/#you"]) h2,.app-header:has(a[href="/#topics"]) h2{font-size:17px;letter-spacing:-.4px}.header-spacer{width:44px}.app-product .icon-button{width:44px;height:44px;min-width:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;text-decoration:none;color:#63748e}.app-product .icon-button.soft{background:#edf1f7}.app-content{padding:20px 24px 115px;flex:1}.app-greeting{margin:3px 0 25px}.app-greeting h1{font-size:30px;line-height:1.18;letter-spacing:-1px;font-weight:700;overflow-wrap:anywhere}.app-greeting p{font-size:13px;margin-top:10px;line-height:1.7}.app-daily-card{position:relative;border-radius:26px;background:#eaf0ff;padding:24px;overflow:hidden;min-height:275px}.app-daily-card .eyebrow{font-size:10px;color:#4c66a6;letter-spacing:1.2px}.app-daily-card h2{font-size:30px;font-weight:700;line-height:1.18;letter-spacing:-1px;margin:15px 0 12px;position:relative;z-index:1;max-width:210px}.app-daily-card>p{font-size:13px;line-height:1.6;position:relative;z-index:1;max-width:165px;color:#586d91}.daily-portrait{position:absolute;right:-20px;top:32px;width:172px;height:177px;border-radius:90px 0 0 90px;overflow:hidden;background:#d7e5fb}.daily-portrait img{width:100%;height:100%;object-fit:cover;object-position:50% 23%}.app-product .primary{background:var(--blue);border-radius:16px;min-height:50px;font-size:14px;gap:9px;padding:13px 18px}.app-product .primary svg{width:20px;height:20px}.app-daily-card .primary{position:relative;z-index:1;margin-top:27px}.app-goal-line{display:flex;align-items:center;gap:13px;margin:22px 0}.app-goal-ring{width:42px;height:42px;border-radius:50%;background:conic-gradient(var(--blue) var(--progress),#e0e7f3 0);display:grid;place-items:center;flex-shrink:0}.app-goal-ring:before{content:"";width:34px;height:34px;background:var(--paper);border-radius:50%}.app-goal-line strong{font-size:13px}.app-goal-line p{font-size:11px;margin-top:4px}.app-goal-line .icon-button{margin-left:auto}.app-goal-line svg{width:18px;height:18px}.app-section-heading{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:25px 0 13px}.app-section-heading h2{font-size:18px;letter-spacing:-.45px}.app-section-heading a{font-size:12px;color:var(--blue);text-decoration:none;min-height:36px;display:flex;align-items:center}.app-preview-row{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px;display:flex;align-items:center;gap:12px;text-decoration:none}.topic-art{height:45px;width:45px;display:grid;place-items:center;background:#edf2ff;border-radius:14px;color:#5475c6;flex-shrink:0}.topic-art svg{width:24px;height:24px}.app-preview-row b{font-size:14px;font-weight:650}.app-preview-row p{font-size:11px;line-height:1.6;margin-top:4px}.app-preview-row>svg{width:19px;height:19px;color:var(--blue);margin-left:auto}.app-bottom-nav{position:fixed;z-index:10;bottom:0;left:50%;transform:translateX(-50%);width:min(100%,470px);height:calc(70px + env(safe-area-inset-bottom));padding:8px 12px calc(8px + env(safe-area-inset-bottom));display:grid;grid-template-columns:repeat(4,1fr);gap:4px;border-top:1px solid var(--line);background:#ffffffef;backdrop-filter:blur(16px)}.app-bottom-nav a{display:flex;align-items:center;justify-content:center;flex-direction:column;gap:5px;border-radius:16px;font-size:10px;color:#758095;text-decoration:none;min-height:48px}.app-bottom-nav svg{width:23px;height:23px}.app-bottom-nav .active{color:var(--blue);background:#edf2ff;font-weight:650}.app-page-title{font-size:30px;line-height:1.2;font-weight:700;letter-spacing:-1px}.app-page-subtitle{font-size:14px;line-height:1.6;margin:10px 0 22px}.app-chips{display:flex;gap:8px;overflow:auto;margin:10px 0 22px;scrollbar-width:none}.app-chips button{white-space:nowrap;border:1px solid var(--line);background:white;border-radius:11px;padding:9px 13px;min-height:42px;font-size:12px;color:var(--muted)}.app-chips button.active{background:var(--blue);border-color:var(--blue);color:white}.app-topic-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.app-topic-card{display:flex;flex-direction:column;align-items:flex-start;text-align:left;background:white;border:1px solid var(--line);border-radius:20px;padding:17px 15px;min-height:143px;text-decoration:none}.app-topic-card b{font-size:14px;line-height:1.4;margin-top:15px}.app-topic-card small{font-size:11px;color:var(--muted);margin-top:5px}.app-topic-card:nth-child(3n+2) .topic-art{background:#eef3f0;color:#618471}.app-topic-card:nth-child(3n) .topic-art{background:#f2eff8;color:#8776a8}.app-scene-hero{padding:26px;background:#eaf0ff;border-radius:26px;margin:0 0 25px}.app-scene-hero>.topic-art{height:72px;width:72px;margin-bottom:25px;border-radius:21px;background:#ffffff88}.app-scene-hero h1{font-size:29px;letter-spacing:-.8px}.app-scene-info{margin:24px 0}.app-scene-info .eyebrow{color:#61738e;letter-spacing:.7px}.app-scene-info p{font-size:14px;line-height:1.8;margin-top:12px}.app-fixed-cta{position:fixed;bottom:0;left:50%;transform:translateX(-50%);width:min(100%,470px);padding:14px 24px calc(21px + env(safe-area-inset-bottom));background:var(--paper);z-index:5}.app-list-row{display:flex;align-items:center;gap:12px;min-height:62px;width:100%;text-align:left;padding:12px 2px;border-bottom:1px solid var(--line);font-size:14px;text-decoration:none}.app-list-row>div,.app-list-row>span{flex:1}.app-list-row small{font-size:11px;color:var(--muted);display:block;margin-top:4px}.app-list-row>svg{width:20px;height:20px;color:#7286a4}.app-list-row>svg:last-child{margin-left:auto;width:16px;height:16px}.app-notice{padding:19px;border-radius:17px;background:#fff3e2;margin:25px 0}.app-notice h3{font-size:14px}.app-notice p{font-size:12px;line-height:1.7;margin-top:9px}.app-profile-header{display:flex;align-items:center;gap:15px;margin:5px 0 29px}.profile-avatar{width:66px;height:66px;border-radius:22px;background:#e4ebfd;color:#6481be;display:grid;place-items:center;font-size:28px;font-weight:650;flex-shrink:0}.app-profile-header h1{font-size:28px;letter-spacing:-.8px;overflow-wrap:anywhere}.app-profile-header p{font-size:12px;margin-top:6px}.app-profile-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.app-profile-metrics>div{background:white;border:1px solid var(--line);border-radius:16px;padding:17px 5px;text-align:center}.app-profile-metrics b{font-size:23px;display:block;font-weight:650;letter-spacing:-.6px}.app-profile-metrics small{font-size:10px;color:var(--muted);display:block;line-height:1.5;margin-top:6px}.app-activity-card{padding:21px;background:white;border:1px solid var(--line);border-radius:20px;margin:22px 0}.app-activity-card h3{font-size:16px;letter-spacing:-.3px}.app-activity-card p{font-size:11px;margin-top:6px}.app-activity-chart{display:grid;grid-template-columns:repeat(7,1fr);align-items:end;gap:10px;margin:25px 0 8px;height:115px}.app-activity-chart>div{display:flex;align-items:center;flex-direction:column;height:100%;justify-content:flex-end;gap:7px}.app-activity-chart i{width:19px;background:#dbe5fb;border-radius:6px;display:block}.app-activity-chart .today i{background:var(--blue)}.app-activity-chart small,.app-activity-chart b{font-size:9px;color:#7d8ba0;font-weight:400}.app-empty{font-size:13px;line-height:1.8;color:var(--muted);padding:20px 0}.app-signout{font-size:13px;color:var(--blue);min-height:50px;background:none;margin-top:20px}.app-product .setup{padding:12px 24px 40px;margin:0;max-width:none}.app-product .setup-heading{text-align:left;margin:15px 0 25px}.app-product .setup-heading h1{font-size:29px;line-height:1.2;font-weight:700;letter-spacing:-1px}.app-product .setup-card{padding:0;border:0;background:none}.app-product .setup-card input:not([type=radio]):not([type=checkbox]),.app-product .setup-card select{background:#fff}.app-product .choice{border-radius:18px;padding:18px;background:#fff}.app-product .choice:has(input:checked){background:#eef3ff;border-color:#6685e6}.app-product .goal-options{grid-template-columns:repeat(3,1fr)}.app-product .goal-choice>span{background:white;border-radius:16px;padding:16px 4px}.app-product .goal-choice input:checked+span{background:#eef3ff;border-color:#6685e6}.app-product .form-actions .secondary{justify-content:center;border-radius:16px}.app-product .eyebrow{color:#61738e;letter-spacing:1.2px}.app-product #global-status:empty{display:none}.app-product #global-status{max-width:470px;font-size:13px}.app-product .loading{font-size:14px}.app-product .app-content:has(.app-notice){padding-bottom:120px}@media(max-width:480px){body.app-product{background:var(--paper)}.app-product .app-header{padding-inline:20px}}@media(max-width:350px){.app-content{padding-inline:18px}.app-daily-card{padding:20px}.app-daily-card h2{font-size:27px;max-width:180px}.daily-portrait{width:140px;right:-27px}.app-daily-card>p{max-width:150px}.app-topic-grid{gap:9px}.app-topic-card{padding:14px 12px}}@media(prefers-reduced-motion:reduce){.app-product *{animation:none!important;scroll-behavior:auto!important}}

.auth-page{background:#f7f9fc}.auth-page .site-header{height:70px;max-width:470px;padding:10px 24px}.auth-page .wordmark span,.auth-page .header-caption{display:none}.auth-page .auth-layout{display:block;max-width:470px;margin:auto;padding:15px 24px 25px;min-height:0}.auth-page .intro{margin-bottom:24px;text-align:center}.auth-page .intro>.eyebrow,.auth-page .intro-note{display:none}.auth-page .intro h1{font-size:30px;font-weight:700;line-height:1.2;letter-spacing:-1px;margin:18px 0 12px}.auth-page .intro h1 em{font:inherit;color:inherit}.auth-page .intro>p{font-size:13px;line-height:1.6}.auth-page .auth-portrait{height:116px;width:116px;object-fit:cover;object-position:50% 23%;border-radius:50%;background:#e5edfc}.auth-page .auth-card{padding:0;border:0;background:none;box-shadow:none}.auth-page .auth-card>.eyebrow{display:none}.auth-page .auth-card h2{font-size:22px;margin:12px 0 8px}.auth-page .auth-card>p{font-size:13px}.auth-page .auth-card form{margin-top:20px}.auth-page input{background:white!important;border-color:#d8e0ed!important;border-radius:13px!important;font-size:16px!important}.auth-page .primary{background:#315de6;border-radius:16px;min-height:50px}.auth-page .auth-switch{font-size:12px;margin-top:17px;padding-top:17px}.auth-page .small-note{font-size:10px;line-height:1.7}.auth-page .page-footer{display:none}.auth-page .wordmark{font-size:26px}

.app-continue-current{display:inline-flex;align-items:center;gap:8px;min-height:44px;margin-top:9px;font-size:12px;font-weight:650;color:#315de6;text-decoration:none}.app-continue-current svg{width:17px;height:17px}.app-product .app-fixed-cta .primary{width:100%;justify-content:center;white-space:normal;text-align:center}.app-product .app-fixed-cta button:disabled{opacity:.6;cursor:wait}.app-fixed-cta #topic-switch-status,.app-fixed-cta .app-switch-error{font-size:12px;line-height:1.6;margin-top:8px}.app-fixed-cta #topic-switch-status:empty{display:none}.app-fixed-cta .app-switch-error{color:#a23b35}.app-product .app-content:has(.app-notice){padding-bottom:170px}

/* Arabic interface flow; Chinese examples remain isolated as LTR in the practice view. */
[dir="rtl"] .wordmark span{padding-left:0;padding-right:13px;border-left:0;border-right:1px solid #cad7df;margin-left:0;margin-right:14px}
[dir="rtl"] .optional{margin-left:0;margin-right:8px}
[dir="rtl"] .start-conversation>span:last-child{margin-left:0;margin-right:auto}
[dir="rtl"] .app-goal-line .icon-button,[dir="rtl"] .app-preview-row>svg,[dir="rtl"] .app-list-row>svg:last-child{margin-left:0;margin-right:auto}
[dir="rtl"] .app-list-row,[dir="rtl"] .app-topic-card{ text-align:right }
[dir="rtl"] .daily-portrait{right:auto;left:-20px;border-radius:0 90px 90px 0}
@media(max-width:350px){[dir="rtl"] .daily-portrait{left:-27px}}
[dir="rtl"] .auth-page input[type="email"],[dir="rtl"] .auth-page input[type="password"]{direction:ltr;text-align:left}
[dir="rtl"] .auth-language select{direction:rtl}