/* Learning workspace: page hierarchy, navigation and task surfaces. */
:root,html[data-theme="dark"]{--ui-page:#101727;--ui-surface:#172136;--ui-surface-raised:#1d2a42;--ui-surface-soft:#24324d;--ui-ink:#f2f5fc;--ui-muted:#b6c3dc;--ui-subtle:#a5b5d1;--ui-action:#aab7ff;--ui-action-hover:#c2ccff;--ui-action-ink:#172044;--ui-green:#8bddbf;--ui-green-strong:#adf0d5;--ui-green-wash:#1b3a38;--ui-terracotta:#aab7ff;--ui-terracotta-strong:#c2ccff;--ui-terracotta-wash:#263455;--ui-ochre:#f1cb87;--ui-ochre-wash:#403823;--ui-line:#31405c;--ui-line-strong:#526486;--study-lilac:#302947;--study-mint:#1c3a36;--study-peach:#402f2b;--ui-font:Inter,"Segoe UI",ui-sans-serif,system-ui,-apple-system,sans-serif}
html[data-theme="light"]{--ui-page:#f8faff;--ui-surface:#fff;--ui-surface-raised:#f2f5fc;--ui-surface-soft:#e9eef8;--ui-ink:#192849;--ui-muted:#53617b;--ui-subtle:#61708a;--ui-action:#4357ce;--ui-action-hover:#3041ac;--ui-action-ink:#fff;--ui-green:#187256;--ui-green-strong:#10533e;--ui-green-wash:#e5f6ee;--ui-terracotta:#4357ce;--ui-terracotta-strong:#3041ac;--ui-terracotta-wash:#edf0ff;--ui-ochre:#936314;--ui-ochre-wash:#fff2d9;--ui-line:#dce3f0;--ui-line-strong:#aebbd4;--study-lilac:#f0eaff;--study-mint:#e6f5ee;--study-peach:#fff0e6}
body{font-family:var(--ui-font);background:var(--ui-page)!important;line-height:1.6}
:is(h1,h2,h3,h4,.home-page h1,.campaign-value){font-family:var(--ui-font)!important;letter-spacing:-.035em}
:is(.topbar,.legal-topbar,.auth-topbar){width:100%!important;max-width:none!important;margin:0!important;padding:16px max(24px,calc((100vw - 1280px)/2))!important;min-height:80px;border:0!important;border-bottom:1px solid var(--ui-line)!important;border-radius:0!important;background:var(--ui-surface)!important;box-shadow:none!important}
.brand{font-size:23px!important;font-weight:750!important;letter-spacing:-1px}
.brand-mark{border-radius:11px!important;transform:rotate(-5deg);width:32px;height:34px}
.public-header-tools{margin-inline-start:auto;gap:12px}
.public-nav-link{font-size:13px!important;font-weight:550!important;border-radius:8px}
.public-account-link{border-radius:9px!important;padding:10px 18px!important}
.theme-toggle{border-radius:8px!important;background:transparent!important}
.theme-toggle-label{display:none}
.page-shell,.detail-main{max-width:1160px}
.home-page .page-shell{width:min(1120px,calc(100% - 40px));margin:auto}
.home-page .study-hero{text-align:center;padding:68px 0 34px;max-width:900px;margin:auto}
.study-badge{display:inline-flex;gap:8px;align-items:center;padding:6px 13px;margin:0 0 20px;border:1px solid var(--ui-line);border-radius:30px;background:var(--ui-surface);color:var(--ui-action);font-size:12px;font-weight:650}
.home-page .study-hero h1{font-size:clamp(36px,4.8vw,62px);line-height:1.14;font-weight:760;max-width:18ch;margin:0 auto 22px;letter-spacing:-.048em;text-wrap:balance}
.home-page .study-hero .intro-copy{max-width:650px;margin:0 auto;font-size:17px;line-height:1.75;color:var(--ui-muted)}
.study-hero .trust-row{justify-content:center;gap:12px 24px;margin-top:23px;font-size:12px;flex-wrap:wrap}
.study-hero .trust-row span{padding:0!important;background:transparent!important;border:0!important;color:var(--ui-muted)!important}
.study-launcher{max-width:890px;margin:0 auto 88px;padding:28px;border:1px solid var(--ui-line);border-radius:20px;background:var(--ui-surface);box-shadow:0 14px 45px #1b2d6510}
.launcher-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:22px}
.launcher-heading h2{font-size:22px;margin:0 0 4px;letter-spacing:-.03em}
.launcher-heading p{margin:0;font-size:13px;color:var(--ui-muted)}
.launcher-spark{color:var(--ui-action);font-size:32px;padding-inline-end:8px}
.study-sources{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.study-source{position:relative;display:flex;flex-direction:column;align-items:flex-start;text-decoration:none;padding:20px;border:1px solid transparent;border-radius:12px;min-width:0;transition:transform .15s,border-color .15s;color:var(--ui-ink)}
.study-source:hover{transform:translateY(-3px);border-color:var(--ui-action)}
.source-media{background:var(--study-lilac)}.source-document{background:var(--study-mint)}.source-images{background:var(--study-peach)}
.source-icon{display:grid;place-items:center;width:40px;height:40px;border-radius:10px;margin-bottom:16px;background:var(--ui-surface);color:var(--ui-ink)}
.source-icon svg{width:23px;height:23px}.study-source strong{font-size:14px;line-height:1.4}.study-source small{font-size:11px;color:var(--ui-muted);margin-top:6px;line-height:1.6}.source-go{position:absolute;inset-inline-end:17px;inset-block-start:19px;color:var(--ui-muted);font-size:19px}
.launcher-bottom{display:flex;align-items:center;gap:24px;margin-top:24px}.study-primary{display:inline-flex;align-items:center;justify-content:center;gap:24px;min-height:48px;padding:12px 22px;background:var(--ui-action);color:var(--ui-action-ink);border-radius:9px;text-decoration:none;font-size:14px;font-weight:650}.study-primary:hover{background:var(--ui-action-hover)}.study-text-link{font-size:13px;color:var(--ui-muted);text-underline-offset:4px}
.study-example{display:grid;grid-template-columns:.8fr 1.2fr;gap:64px;align-items:center;margin:0 0 100px;padding:36px 0;border-top:1px solid var(--ui-line)}
.example-intro h2{font-size:38px;line-height:1.18;margin:12px 0 20px;max-width:16ch;letter-spacing:-.04em}.example-intro>p:not(.eyebrow){font-size:15px;color:var(--ui-muted);line-height:1.8}.example-intro .source-preview{margin-top:24px}.example-product{min-width:0}.example-product .visual-window{width:100%;transform:none!important;background:var(--ui-surface)!important;border:1px solid var(--ui-line)!important;box-shadow:0 18px 35px #152f6810!important}.visual-bar{padding:16px!important;height:auto!important}.visual-bar span{font-size:12px}.visual-menu{padding:10px 16px!important;background:var(--ui-surface-raised)!important}.visual-summary{padding:24px!important}.visual-summary h3{font-family:var(--ui-font)!important;font-size:23px;line-height:1.4}.visual-summary p{font-size:14px;line-height:1.8}.visual-menu button{border-radius:7px;padding:9px 22px;font-size:13px}.visual-menu button[aria-selected="true"]{background:var(--ui-surface);box-shadow:0 2px 5px #19284912}.demo-choice{min-height:44px}.visual-caption{font-size:11px;text-align:center;margin-top:14px}
.home-page .feature-band{margin:0 0 70px;padding:0;background:transparent!important;border:0!important}.home-page .section-lead{display:block;text-align:center;max-width:660px;margin:0 auto 32px}.home-page .section-lead h2{font-size:34px;line-height:1.25}.home-page .section-lead p{font-size:15px}.home-page .feature-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.home-page .feature-grid article{padding:27px!important;border:1px solid var(--ui-line)!important;border-radius:14px!important;background:var(--ui-surface)!important}.home-page .feature-grid article>span{display:grid;place-items:center;float:none;width:35px;height:35px;border-radius:9px;background:var(--ui-terracotta-wash)!important;font-size:12px;margin:0 0 18px;color:var(--ui-action)!important}.home-page .feature-grid article h3,.home-page .feature-grid article p{margin-inline-start:0!important}.home-page .feature-grid article h3{font-size:18px}.home-page .feature-grid article p{font-size:14px;line-height:1.75}.feature-deep-links{justify-content:center;gap:12px;flex-wrap:wrap;margin-top:24px}.feature-deep-links a{font-size:12px}.section-detail-link{display:block;text-align:center;margin-top:22px}
.home-page .campaign-section{padding:32px 0 60px;margin-top:0}.home-page .campaign-grid{gap:16px}.home-page .campaign-card{padding:24px!important;border:1px solid var(--ui-line)!important;border-radius:14px!important;background:var(--ui-surface)!important}.home-page .campaign-card.featured{background:var(--ui-terracotta-wash)!important}.home-page .campaign-value{font-size:32px!important;font-weight:700!important}.campaign-card h3{font-size:16px}.campaign-card p{font-size:13px;min-height:0}.campaign-card a{border-radius:8px!important;font-size:13px!important}
.site-footer{width:min(1280px,calc(100% - 48px));padding-top:40px;border-top:1px solid var(--ui-line);background:transparent!important}.footer-links strong{font-size:13px}.footer-links a{font-size:12px}.footer-bottom{gap:20px;align-items:center}.footer-main>p{max-width:35ch}
/* Stable navigation separates account tools from the active study task. */
.study-sidebar{position:fixed;inset-block-start:81px;inset-block-end:0;inset-inline-start:0;width:222px;display:flex;flex-direction:column;padding:26px 18px;background:var(--ui-surface);border-inline-end:1px solid var(--ui-line);z-index:20}
.sidebar-create{display:flex;align-items:center;gap:10px;padding:12px 14px;border-radius:9px;background:var(--ui-action);color:var(--ui-action-ink);text-decoration:none;font-size:13px;font-weight:650}.sidebar-create>span:first-child{font-size:22px;line-height:1}.study-sidebar nav{display:grid;gap:6px;margin-top:24px}.study-sidebar nav a{display:flex;gap:12px;align-items:center;padding:12px 14px;text-decoration:none;border-radius:8px;color:var(--ui-muted);font-size:13px}.study-sidebar nav a.active{background:var(--ui-terracotta-wash);color:var(--ui-action);font-weight:650}.study-sidebar nav a:hover{background:var(--ui-surface-raised)}.study-sidebar nav a>span:first-child{font-size:20px;width:22px;text-align:center}.sidebar-support{margin-top:auto;padding:14px;font-size:12px;color:var(--ui-muted)}
.workspace-page>.topbar{position:sticky;top:0;z-index:35}.workspace-page>.page-shell{width:auto;max-width:1350px;margin:0 30px 60px 252px;padding-top:30px}.workspace-page>.site-footer{width:auto;margin-inline:252px 30px}.workspace-intro{padding:0 0 24px!important}.workspace-intro h1{font-size:30px!important;max-width:32ch}.workspace-intro .eyebrow{font-size:11px}.workspace{gap:22px!important;grid-template-columns:minmax(0,1.2fr) minmax(300px,.8fr)!important;align-items:start}.workspace .panel{padding:26px!important;border-radius:16px!important;background:var(--ui-surface)!important;border:1px solid var(--ui-line)!important}.panel-heading h2{font-size:18px!important}.source-tabs{background:var(--ui-surface-raised)!important;padding:5px!important;border:0!important;border-radius:10px!important}.source-tab{min-height:42px!important;border-radius:7px!important;font-size:13px!important}.source-tab.active{background:var(--ui-surface)!important;color:var(--ui-action)!important;box-shadow:0 2px 7px #182b4a10!important}.recording-mode-tabs{background:transparent!important;border:0!important;margin-top:14px}.recording-mode-tabs button{font-size:12px!important}.workspace .drop-zone{min-height:210px;padding:30px 20px!important;background:var(--ui-page)!important;border:1.5px dashed var(--ui-line-strong)!important;border-radius:12px!important}.drop-zone .upload-icon{width:48px;height:48px;background:var(--ui-terracotta-wash)!important;border-radius:13px}.drop-zone strong{font-size:15px!important}.drop-zone>span:not(.upload-icon){max-width:34ch;line-height:1.8}.content-choices{gap:10px}.content-choice{min-height:66px;border-radius:10px!important}.control-label{font-size:13px}.primary-button{border-radius:9px!important;min-height:48px!important;font-size:14px!important}.results{margin-top:26px!important;background:var(--ui-surface)!important}.result-tabs{border-bottom:1px solid var(--ui-line)!important}.workspace-page .billing-section{margin-top:50px}
body[data-page="account"] .account-layout:not([hidden]){display:grid;grid-template-columns:208px minmax(0,1fr);column-gap:32px;width:min(1200px,calc(100% - 48px));margin:32px auto}.account-layout>.account-hero{grid-column:2;margin:0 0 25px;padding:24px!important;background:var(--ui-terracotta-wash)!important;border:0!important}.account-layout>.account-section-nav{grid-column:1;grid-row:1/20;display:flex;flex-direction:column;align-self:start;position:sticky;top:24px;padding:12px;background:var(--ui-surface);border:1px solid var(--ui-line);border-radius:12px;gap:5px}.account-section-nav button{text-align:start;border:0!important;border-radius:8px!important;padding:13px 14px;font-size:13px;background:transparent!important}.account-section-nav button[aria-selected="true"]{background:var(--ui-terracotta-wash)!important;color:var(--ui-action)!important}.account-layout>.account-view,.account-layout>.notice{grid-column:2;min-width:0}.dashboard-card{padding:26px!important;background:var(--ui-surface)!important;border:1px solid var(--ui-line)!important;border-radius:14px!important}.dashboard-card h2{font-size:18px!important}.dashboard-grid{gap:20px}.metric strong{font-size:48px!important;font-weight:720!important}
.plans-page .detail-main{width:min(1220px,calc(100% - 48px));padding-top:30px}.plans-page .detail-hero{text-align:center;max-width:800px;margin:0 auto 40px;background:transparent!important;border:0!important}.plans-page .detail-hero h1{font-size:42px;line-height:1.2}.plans-page .detail-hero>p{font-size:16px;max-width:65ch;margin-inline:auto}.plans-page .billing-section{background:transparent!important;border:0!important;padding:0!important}.plans-grid{grid-template-columns:repeat(4,minmax(0,1fr))!important;gap:16px}.plan-card{padding:24px!important;border:1px solid var(--ui-line)!important;border-radius:14px!important;background:var(--ui-surface)!important}.plan-card.featured{border:2px solid var(--ui-action)!important;background:var(--ui-terracotta-wash)!important}.plan-price strong{font-size:34px!important}.billing-heading{margin-bottom:20px}.billing-side p{font-size:12px}.account-cta{border-radius:10px!important}.currency-picker select{min-height:42px!important;border-radius:8px!important}.compare-table-wrap{border-radius:12px!important}.legal-shell{max-width:1160px;gap:40px;margin-top:40px}.legal-card{padding:40px!important;border-radius:16px!important;background:var(--ui-surface)!important}.legal-card h1{font-size:38px!important;line-height:1.2}.legal-card p,.legal-card li{font-size:15px!important;line-height:1.85}.legal-nav{border:0!important;background:transparent!important}.legal-nav a{font-size:13px;padding:10px 12px!important;border-radius:8px!important}
.auth-shell:not(.single){grid-template-columns:minmax(0,1fr) minmax(340px,460px);max-width:1100px;gap:70px;margin-top:64px;align-items:center}.auth-story{border:0!important;padding:24px!important;min-height:0!important;background:transparent!important}.auth-story h1{font-size:48px!important;line-height:1.15!important;letter-spacing:-.045em!important}.auth-story>p:not(.eyebrow){font-size:16px!important}.auth-card{border-radius:18px!important;padding:36px!important;background:var(--ui-surface)!important;border:1px solid var(--ui-line)!important;box-shadow:0 12px 35px #1837690b!important}.auth-form input,.field input,.field select{border-radius:8px!important;min-height:44px}.story-item{background:transparent!important;border:0!important;padding-inline:0!important}
/* Never recolor payment trademarks. The source assets have white lettering. */
:is(.footer-payment-band,.payment-brand-band,.iyzico-pay-mark){background:#11233b!important;padding:12px 16px;border-radius:8px;box-sizing:border-box;max-width:100%;height:auto;filter:none!important}.footer-payment-band{width:min(390px,100%);max-width:390px}.iyzico-checkout-brand{background:#11233b!important}.iyzico-checkout-brand img{filter:none!important}
html[dir="rtl"] .workspace-page>.page-shell{margin:0 252px 60px 30px}
@media(max-width:1100px){.study-sidebar{width:190px;padding:22px 12px}.workspace-page>.page-shell{margin-inline:214px 24px}.workspace-page>.site-footer{margin-inline:214px 24px}.workspace{grid-template-columns:minmax(0,1fr)!important}.plans-grid{grid-template-columns:repeat(2,minmax(0,1fr))!important}.study-example{gap:35px}.public-nav-link{font-size:12px!important}.public-header-tools{gap:6px}}
@media(max-width:860px){:is(.topbar,.legal-topbar,.auth-topbar){padding:13px 20px!important;min-height:72px}.study-sidebar{position:static;display:block;width:100%;padding:12px 20px;border-inline-end:0;border-bottom:1px solid var(--ui-line)}.study-sidebar nav{display:flex;flex-wrap:wrap;gap:5px;margin:0}.study-sidebar nav a{padding:8px 12px;font-size:12px}.sidebar-create,.sidebar-support{display:none}.workspace-page>.page-shell,html[dir="rtl"] .workspace-page>.page-shell{margin:24px 20px 50px!important;padding:0}.workspace-page>.site-footer{margin:0 20px!important}.home-page .study-hero{padding-top:48px}.study-example{grid-template-columns:1fr;gap:26px;margin-bottom:50px}.example-intro{max-width:620px}.example-intro h2{max-width:24ch;font-size:32px}.example-intro .source-preview{margin-top:12px}.example-product{max-width:620px;width:100%;margin:auto}.study-launcher{margin-bottom:50px}.auth-shell:not(.single){grid-template-columns:1fr;gap:25px;margin-top:28px}.auth-story h1{font-size:36px!important}.auth-card{width:100%;max-width:550px;margin:auto}.account-layout>.account-section-nav{position:static;grid-column:1/-1;grid-row:auto;flex-direction:row;flex-wrap:wrap;gap:5px;margin-bottom:20px}.account-layout>.account-hero{grid-column:1/-1;grid-row:1}.account-layout>.account-view,.account-layout>.notice{grid-column:1/-1}body[data-page="account"] .account-layout:not([hidden]){grid-template-columns:1fr;margin-top:22px}.account-section-nav button{flex:1 1 auto;text-align:center;padding:10px!important}.legal-shell{gap:20px}.public-nav{z-index:50!important}}
@media(max-width:600px){.home-page .page-shell{width:calc(100% - 32px)}.home-page .study-hero{padding:35px 0 26px}.home-page .study-hero h1{font-size:36px;line-height:1.15}.home-page .study-hero .intro-copy{font-size:14px;line-height:1.75}.study-hero .trust-row{gap:8px 14px;font-size:10px;margin-top:18px}.study-launcher{padding:19px;border-radius:16px}.launcher-heading h2{font-size:20px}.launcher-heading p{font-size:12px}.launcher-spark{display:none}.study-sources{grid-template-columns:1fr;gap:10px}.study-source{display:grid;grid-template-columns:42px 1fr;column-gap:13px;padding:15px;min-height:80px}.source-icon{grid-row:1/3;margin:0;align-self:center}.study-source strong{padding-inline-end:20px;font-size:14px;align-self:end}.study-source small{margin:3px 0 0;font-size:11px}.source-go{inset-block-start:22px}.launcher-bottom{flex-direction:column;gap:15px;margin-top:20px}.study-primary{width:100%}.study-example{margin-bottom:45px;padding-top:28px}.example-intro h2{font-size:30px}.home-page .feature-grid{grid-template-columns:1fr}.home-page .section-lead h2{font-size:28px}.home-page .campaign-grid{grid-template-columns:1fr}.home-page .campaign-card{display:flex;flex-direction:column;align-items:flex-start;gap:12px;padding:22px!important}.home-page .campaign-card .campaign-value{border:0!important;border-radius:0;max-width:100%;font-size:32px!important;line-height:1.2;white-space:nowrap;direction:ltr;unicode-bidi:isolate}.home-page .campaign-card h3,.home-page .campaign-card p{width:100%;margin:0;overflow-wrap:anywhere}.home-page .campaign-card a{max-width:100%;margin:4px 0 0;white-space:normal;text-align:start;box-sizing:border-box}.home-page .feature-band{margin-bottom:30px}.workspace .panel{padding:19px!important}.workspace-intro h1{font-size:25px!important}.study-sidebar nav a>span:first-child{display:none}.study-sidebar nav a{font-size:11px;padding:8px 10px}.workspace-intro-actions{flex-wrap:wrap}.plans-page .detail-main{width:calc(100% - 32px)}.plans-page .detail-hero h1{font-size:31px}.plans-grid{grid-template-columns:1fr!important}.billing-heading{align-items:flex-start;gap:14px}.billing-side{width:100%;align-items:flex-start}.legal-card{padding:24px!important}.legal-card h1{font-size:29px!important}.auth-card{padding:25px!important}.site-footer{width:calc(100% - 40px)}.footer-links{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-payment-band{min-width:0;width:100%}.footer-bottom{align-items:flex-start}.theme-toggle{min-width:38px;min-height:38px}.public-header-tools>.language-picker select{width:74px!important;max-width:74px!important}.brand{font-size:21px!important}}
/* Review corrections: readable form labels and task-first mobile sign-in. */
.auth-card .field>span,.auth-card .inline-links>span,.check-row,.control>span{color:var(--ui-muted)!important}
.rollout-eta{background:var(--ui-surface-raised)!important;border:1px solid var(--ui-line)!important}
.rollout-eta strong{color:var(--ui-ink)!important}.rollout-eta span{color:var(--ui-muted)!important}
.workspace-page .recording-mode-tabs button{background:var(--ui-surface)!important;color:var(--ui-muted)!important;border-color:var(--ui-line)!important}
.workspace-page .recording-mode-tabs button.active,.workspace-page .source-tab.active{background:var(--ui-terracotta-wash)!important;color:var(--ui-action)!important;border-color:var(--ui-action)!important;box-shadow:none!important}
.workspace-page .upload-icon svg{stroke:var(--ui-action)!important}.account-status>div:nth-child(2)>strong{color:var(--ui-green)!important}
.plans-page .detail-hero{padding:28px 0!important;margin:0 auto 28px!important}
.plans-page .detail-hero h1{font-size:38px!important;line-height:1.2;max-width:27ch;margin:0 auto 18px!important}
.plans-page .billing-heading h2{font-size:26px!important;line-height:1.3;max-width:none;margin:6px 0!important}
.plans-page .billing-heading{display:flex;justify-content:space-between;align-items:center;gap:28px;margin-bottom:18px}
@media(max-width:860px){.auth-shell:not(.single){min-height:0!important;align-items:start;margin-bottom:40px}.auth-shell:not(.single)>.auth-card{order:0;margin-top:0}.auth-shell:not(.single)>.auth-story{order:1;padding:22px!important}.auth-shell:not(.single) .story-stack{display:none}.auth-story h1{font-size:28px!important}.auth-story>p:not(.eyebrow){font-size:14px!important}.auth-topbar>.theme-toggle{margin-inline-start:auto}.auth-topbar>.language-switcher{margin-inline-start:8px}}
@media(max-width:600px){.plans-page .detail-hero{padding:20px 0!important}.plans-page .detail-hero h1{font-size:30px!important}.plans-page .billing-heading{flex-direction:column;align-items:flex-start;gap:12px}.plans-page .billing-heading h2{font-size:23px!important}.plans-page .detail-hero>p{font-size:14px;line-height:1.75}.billing-side p{margin:0 0 8px}}

/* Original study illustration stays decorative; the adjacent demo is interactive. */
.home-page .study-illustration{display:block;width:100%;height:auto;aspect-ratio:3/2;object-fit:contain;border-radius:20px;margin:0 0 26px;background:#f2f5fc;border:1px solid var(--ui-line)}
.home-page .study-example{align-items:center}
@media(min-width:861px){.home-page .example-intro h2{font-size:32px;margin-bottom:14px}.home-page .study-illustration{max-width:400px}}
@media(max-width:860px){.home-page .study-illustration{max-width:480px;margin-inline:auto}.home-page .example-intro{width:100%;margin-inline:auto}}

.home-page .skip-link:not(:focus){clip-path:inset(50%);pointer-events:none}

/* Keep the source heading readable in both color themes. */
/* Keep the assistant entry usable before desktop navigation becomes crowded. */
@media(min-width:861px) and (max-width:1100px){:is(.topbar,.legal-topbar){position:relative;flex-direction:row!important}.public-header-tools{display:flex;width:auto;flex:1;justify-content:flex-end;gap:8px}.public-menu-toggle{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;flex:0 0 42px;border:1px solid var(--ui-line);border-radius:9px;background:var(--ui-surface);color:var(--ui-ink);cursor:pointer}.public-menu-toggle svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round}.public-header-tools>.public-nav{display:none;position:absolute;inset-inline:20px;top:100%;width:auto;padding:12px;border:1px solid var(--ui-line);border-radius:12px;background:var(--ui-surface);box-shadow:0 12px 35px #10172720;z-index:100}.public-menu-open .public-header-tools>.public-nav{display:flex;flex-wrap:wrap;gap:6px}.public-menu-open .public-nav :is(.public-nav-link,.public-account-link){justify-content:flex-start;flex:1 0 calc(33% - 12px);padding:12px;white-space:normal}}

/* Workspace modes keep the current file and lesson result mounted. */
.workspace-mode-tabs{display:flex;gap:6px;width:fit-content;max-width:100%;padding:5px;margin-bottom:26px;border:1px solid var(--ui-line);border-radius:12px;background:var(--ui-surface-raised)}
.workspace-mode-tabs button{min-height:44px;padding:10px 22px;border:0;border-radius:8px;background:transparent;color:var(--ui-muted);font:inherit;font-size:14px;font-weight:600;cursor:pointer}
.workspace-mode-tabs button[aria-selected="true"]{background:var(--ui-surface);color:var(--ui-action);box-shadow:0 2px 6px #152f6810}
.workspace-mode-tabs button:focus-visible{outline:2px solid var(--ui-action);outline-offset:2px}
.workspace-assistant-intro{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:22px}.workspace-assistant-intro h1{font-size:28px;margin:0 0 8px}.workspace-assistant-intro p{color:var(--ui-muted);line-height:1.7;margin:0}.workspace-assistant-intro>a{color:var(--ui-action);font-size:13px;white-space:nowrap}
.workspace-page .assistant-page-grid{grid-template-columns:minmax(0,1fr) 270px;gap:22px}.workspace-page .assistant-page-chat{height:clamp(530px,calc(100dvh - 310px),720px)}
@media(max-width:1200px){.workspace-page .assistant-page-grid{grid-template-columns:minmax(0,1fr)}.workspace-page .assistant-side{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:600px){.workspace-mode-tabs{width:100%;margin-bottom:22px}.workspace-mode-tabs button{flex:1;padding:10px 14px}.workspace-assistant-intro{align-items:flex-start;flex-direction:column;gap:12px}.workspace-assistant-intro h1{font-size:24px}.workspace-page .assistant-side{grid-template-columns:1fr}.workspace-page .assistant-page-chat{height:clamp(530px,calc(100dvh - 260px),680px)}}

.ad-free-offer{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:30px;margin:30px 0;padding:28px;border:1px solid var(--ui-line);border-radius:16px;background:var(--ui-surface)}.ad-free-copy h2{margin:0 0 10px;font-size:22px}.ad-free-copy p{margin:6px 0;color:var(--ui-muted);font-size:14px;line-height:1.7}.ad-free-copy p:last-child{font-size:12px}.ad-free-actions{display:flex;flex-direction:column;gap:8px;align-items:center;min-width:180px}.ad-free-actions strong{font-size:32px}.ad-free-actions span{font-size:12px;color:var(--ui-muted)}.ad-free-actions button{width:100%;margin-top:8px}.ad-free-actions button:disabled{opacity:.7;cursor:default}
@media(max-width:600px){.ad-free-offer{grid-template-columns:minmax(0,1fr);gap:20px;padding:22px}.ad-free-actions{align-items:flex-start}.ad-free-actions strong{font-size:28px}}

@media(max-width:600px){.workspace-page .study-sidebar nav{flex-wrap:nowrap;overflow-x:auto;padding-bottom:3px}.workspace-page .study-sidebar nav a{flex:0 0 auto;white-space:nowrap}.workspace-mode-tabs button{font-size:13px;padding:10px 12px}.workspace-assistant-intro{gap:8px;margin-bottom:16px}.workspace-assistant-intro p{font-size:14px}.workspace-assistant-intro>a{font-size:12px}.workspace-page .assistant-page-chat{height:clamp(480px,calc(100dvh - 360px),650px)}}
/* File transfer is measured separately from lesson preparation. */
.process-panel [hidden]{display:none!important}
.process-status-icon{display:grid;place-items:center;flex:0 0 44px;width:44px;height:44px;border-radius:14px;background:var(--ui-terracotta-wash);color:var(--ui-action);font-size:22px;font-weight:750}
.process-status-icon[data-state=done]{color:var(--ui-green);background:var(--ui-green-wash)}
.process-panel .progress-visual{grid-template-columns:44px minmax(0,1fr);align-items:center;gap:14px}
.upload-progress-list{display:grid;gap:12px;margin:20px 0}
.upload-progress-list:empty{display:none}
.upload-progress-file{min-width:0;padding:13px;border:1px solid var(--ui-line);border-radius:13px;background:var(--ui-surface-raised)}
.upload-progress-file>div{display:flex;align-items:baseline;justify-content:space-between;gap:12px}
.upload-progress-file strong{min-width:0;overflow-wrap:anywhere;font-size:13px;line-height:1.5}
.upload-progress-file b{flex-shrink:0;color:var(--ui-action);font-size:13px;font-variant-numeric:tabular-nums;direction:ltr}
.upload-progress-file progress{display:block;width:100%;height:6px;margin:10px 0 8px;border:0;border-radius:99px;overflow:hidden;appearance:none;background:var(--ui-line);color:var(--ui-action)}
.upload-progress-file progress::-webkit-progress-bar{background:var(--ui-line);border-radius:99px}
.upload-progress-file progress::-webkit-progress-value{background:var(--ui-action);border-radius:99px}
.upload-progress-file progress::-moz-progress-bar{background:var(--ui-action);border-radius:99px}
.upload-progress-file small{display:block;color:var(--ui-muted);font-size:11px;direction:ltr;text-align:start}
.result-open-choice{display:flex;align-items:flex-start;gap:9px;margin:18px 0;font-size:12px;line-height:1.6;color:var(--ui-muted);cursor:pointer}
.result-open-choice input{flex:0 0 17px;width:17px;height:17px;margin:2px 0 0;accent-color:var(--ui-action)}
#openReadyResult{width:100%;margin:0 0 18px}
.process-details{margin-top:18px;border-top:1px solid var(--ui-line);padding-top:14px}
.process-details>summary{cursor:pointer;font-size:12px;font-weight:650;color:var(--ui-muted)}
.process-details .stage-list{margin-top:14px}

@media(max-width:860px){.study-sidebar .sidebar-support{display:inline-flex;align-items:center;min-height:36px;margin:6px 0 0;padding:6px 12px;font-size:12px;color:var(--ui-muted)}}
@media(max-width:860px){.workspace-page .study-sidebar{display:flex;justify-content:flex-end;padding-block:4px}.workspace-page .study-sidebar nav{display:none}.workspace-page .study-sidebar .sidebar-support{margin:0}.workspace-page .lesson-library{padding-top:12px}.library-heading{margin-bottom:18px}.library-heading h1{font-size:30px}.library-heading p{font-size:14px;margin-block:10px}.library-toolbar{padding:10px}}