@font-face{font-family:Inter;font-style:normal;font-weight:400;font-display:swap;src:url(/assets/fonts/inter-400.2c2e33325742.woff2) format("woff2")} @font-face{font-family:Inter;font-style:normal;font-weight:500;font-display:swap;src:url(/assets/fonts/inter-500.f39ef5ad22e2.woff2) format("woff2")} @font-face{font-family:Inter;font-style:normal;font-weight:600;font-display:swap;src:url(/assets/fonts/inter-600.66a56851012c.woff2) format("woff2")} @font-face{font-family:Inter;font-style:normal;font-weight:700;font-display:swap;src:url(/assets/fonts/inter-700.f9007cf50750.woff2) format("woff2")} @font-face{font-family:Inter;font-style:normal;font-weight:800;font-display:swap;src:url(/assets/fonts/inter-800.c742e08e5587.woff2) format("woff2")} :root{ --bg:#fff;--surface:#fff;--surface-2:#f4f4f4;--surface-3:#f8f8f8; --ink:#1c1c1e;--text:#3b3b3b;--muted:#666;--subtle:#707070;--placeholder:#8d8d8d; --line:#e5e5e5;--line-strong:#d9d9d9; --primary:#3700a4;--primary-hover:#2b0083;--primary-soft:#efe9fb;--primary-soft-2:#e3d8fa; --secondary:#f29915;--secondary-deep:#b45309;--secondary-soft:#fdf3e3; --success:#348d00;--success-text:#2b6f00;--success-soft:#e8f4de; --wrong:#f56a44;--wrong-text:#a33c1d;--wrong-soft:#fdeee9; --error:#a91717;--error-soft:#fdecec;--info:#13aef6;--info-text:#0369a1;--info-soft:#e7f6fe; --f-orange:#f29915;--f-orange-2:#d97706;--f-blue:#13aef6;--f-blue-2:#0284c7;--f-green:#22a866;--f-green-2:#15803d; --f-purple:#c547db;--f-purple-2:#9333ea;--f-indigo:#6273cf;--f-indigo-2:#4f46e5;--f-red:#ff592b;--f-red-2:#ea580c; --coach:#f1f5fa;--verified:#2668e8;--presence:#34c759; --radius:12px;--radius-lg:20px;--radius-xl:28px;--pill:999px; --shadow:0 1px 2px #0000000a,0 10px 30px #0000000f;--shadow-float:0 8px 30px #00000024; --tabbar:72px; font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--bg); font-synthesis:none;-webkit-text-size-adjust:100%;font-feature-settings:"calt","kern" } *{box-sizing:border-box} body{margin:0;background:var(--bg);line-height:1.5} a{color:inherit;text-decoration:none} button,input,select,textarea{font:inherit;color:inherit} button,a,input,summary,select{-webkit-tap-highlight-color:transparent} button{cursor:pointer;background:none;border:0;padding:0} button:disabled{cursor:default;opacity:.5} img,svg{max-width:100%;height:auto} p{line-height:1.7;color:var(--muted);margin-top:0} h1,h2,h3,h4{margin-top:0;color:var(--ink);letter-spacing:-.02em} h1{font-size:clamp(2.1rem,4.2vw,3.25rem);line-height:1.08;font-weight:800;letter-spacing:-.035em;margin-bottom:20px} h2{font-size:clamp(1.55rem,2.6vw,2.1rem);line-height:1.18;font-weight:800;margin-bottom:16px} h3{font-size:1.2rem;line-height:1.3;font-weight:700;margin-bottom:10px} em{font-style:normal;color:var(--primary)} strong{font-weight:700} button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--secondary);outline-offset:3px;border-radius:6px} button:disabled:focus-visible{outline:none} [hidden]{display:none!important} ::selection{background:var(--primary-soft-2);color:var(--ink)} .sprite{position:absolute;width:0;height:0;overflow:hidden} .icon{width:1.25em;height:1.25em;flex:none;display:inline-block;vertical-align:-.22em} .icon-sm{width:1em;height:1em;vertical-align:-.15em} .icon-lg{width:1.6em;height:1.6em} .container{width:min(1184px,calc(100% - 96px));margin-inline:auto} .section{padding-block:72px} .skip-link{position:fixed;top:-100px;left:15px;background:var(--primary);color:#fff;padding:14px 20px;z-index:100;border-radius:var(--pill);font-weight:700} .skip-link:focus{top:15px} .header{height:76px;border-bottom:1px solid var(--line);background:var(--surface)} .header-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:28px} .brand{display:inline-flex;align-items:center;gap:11px;white-space:nowrap;font-size:19px;font-weight:800;letter-spacing:-.03em;color:var(--ink)} .brand img{width:40px;height:40px;border-radius:11px;flex:none} .brand-light{font-weight:500;color:var(--muted)} .nav{display:flex;align-items:center;gap:6px;font-size:14px;font-weight:600} .nav a{padding:10px 14px;border-radius:var(--pill);color:var(--text);transition:background .15s,color .15s} .nav a:hover{background:var(--surface-2);color:var(--ink)} .nav a[aria-current]{background:var(--primary-soft);color:var(--primary)} .header-cta{gap:8px} .header-cta small{display:none} .button{display:inline-flex;align-items:center;justify-content:center;gap:10px;background:var(--primary);border:1px solid var(--primary);color:#fff;border-radius:var(--pill);padding:14px 24px;font-size:15px;font-weight:700;line-height:1.25;min-height:50px;text-align:center;transition:background .15s,border-color .15s,transform .15s} .button:hover{background:var(--primary-hover);border-color:var(--primary-hover)} .button:active{transform:translateY(1px)} .button .icon{width:1.15em;height:1.15em} .button-small{padding:10px 18px;min-height:42px;font-size:14px;gap:8px} .button-outline{background:transparent;color:var(--primary);border-color:var(--primary-soft-2)} .button-outline:hover{background:var(--primary-soft);border-color:var(--primary)} .button-secondary{background:var(--surface-2);color:var(--ink);border-color:var(--surface-2)} .button-secondary:hover{background:var(--line);border-color:var(--line)} .button-light{background:#fff;color:var(--primary);border-color:#fff} .button-light:hover{background:var(--primary-soft);border-color:var(--primary-soft)} .text-link{display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:14px;padding-block:4px;color:var(--primary);text-decoration:underline;text-decoration-color:var(--primary-soft-2);text-underline-offset:4px;text-decoration-thickness:1.5px} .text-link:hover{text-decoration-color:currentColor} .text-button{border:0;background:transparent;padding:10px 12px;font-size:14px;font-weight:600;color:var(--primary);text-decoration:underline;text-underline-offset:4px;border-radius:8px} .text-button:hover{background:var(--primary-soft)} .eyebrow{display:flex;align-items:center;gap:6px;font-size:11px;line-height:1.3;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--primary);margin-bottom:14px} .eyebrow.light{color:#d8ccf6} .status-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--presence);flex:none} .pill{display:inline-flex;align-items:center;gap:5px;background:var(--surface-2);border-radius:var(--pill);padding:5px 10px;font-size:12px;font-weight:600;color:var(--text)} .small-note{display:block;font-size:13px;line-height:1.6;color:var(--muted);margin-top:12px} .fineprint{font-size:12px;line-height:1.7;color:var(--muted);margin-top:22px;max-width:960px} .fineprint a{text-decoration:underline;text-underline-offset:3px} .card-arrow{margin-left:auto;color:var(--subtle);display:inline-flex} .card-arrow .icon{width:22px;height:22px} a:hover>.card-arrow,a:hover .card-arrow{color:var(--primary)} .hero{display:grid;grid-template-columns:1.1fr 1fr;grid-template-areas:"copy side" "download side";gap:0 64px;align-items:start;padding-block:60px 72px}.hero-copy{grid-area:copy}.hero-app-download{grid-area:download}.hero-side{grid-area:side;align-self:center} .hero .eyebrow{margin-bottom:22px} .hero h1{font-size:clamp(2.6rem,4.9vw,4rem);margin-bottom:22px} .hero-lead{font-size:17px;line-height:1.7;margin-bottom:26px;max-width:520px} .hero-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap} .hero-benefits{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:13px;font-weight:600;color:var(--text);margin:26px 0 0;padding:0;list-style:none} .hero-benefits li{display:inline-flex;align-items:center;gap:6px} .hero-benefits .icon{color:var(--success)} .hero-app-download{margin-top:28px;padding-top:22px;border-top:1px solid var(--line);max-width:460px}.hero-app-download .rating{margin-top:14px} .hero-app-download>p{font-size:14px;margin:0 0 4px;color:var(--text)} .hero-side{display:grid;gap:14px} .coach-card{display:grid;grid-template-columns:72px 1fr;gap:14px;align-items:start;padding:18px 20px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-xl);box-shadow:var(--shadow)} .coach-avatar{position:relative;width:72px;height:72px} .coach-avatar img{width:72px;height:72px;border-radius:50%;display:block;background:var(--surface-2)} .coach-avatar:after{content:"";position:absolute;right:2px;bottom:4px;width:14px;height:14px;border-radius:50%;background:var(--presence);border:2px solid #fff} .coach-name{display:flex;align-items:center;gap:6px;font-size:15px;font-weight:700;margin-bottom:8px} .coach-name .icon{color:var(--verified);width:18px;height:18px} .coach-name span{font-size:13px;font-weight:400;color:var(--muted)} .coach-bubble{margin:0;background:var(--coach);border-radius:18px 18px 18px 6px;padding:14px 16px;font-size:15px;line-height:1.55;color:var(--ink)} .hero-practice{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-xl);box-shadow:var(--shadow);overflow:hidden} .practice-header{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:14px 20px;border-bottom:1px solid var(--line);font-size:12px;font-weight:600;color:var(--muted)} .practice-header>span:first-child{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--primary)} .practice-body{padding:20px 22px 16px} .practice-eyebrow{display:block;font-size:13px;font-weight:600;color:var(--muted)} .sample-visual{display:flex;align-items:center;justify-content:center;height:140px;margin:10px 0 12px;background:var(--surface-3);border-radius:var(--radius)} .sample-visual img{width:190px;height:126px;object-fit:contain} .sample-question{font-size:17px;line-height:1.5;color:var(--ink);font-weight:600;min-height:76px} .sample-answers{display:grid;grid-template-columns:1fr 1fr;gap:10px} .answer-button{display:flex;align-items:center;justify-content:center;gap:10px;border:1.5px solid var(--line-strong);border-radius:var(--radius);padding:13px;background:var(--surface);font-size:18px;font-weight:800;min-height:54px;color:var(--ink);transition:background .15s,border-color .15s} .answer-button span{font-size:14px;font-weight:600;color:var(--text)} .answer-button:hover{border-color:var(--primary);background:var(--primary-soft)} .answer-button[aria-pressed=true]{background:var(--primary);color:#fff;border-color:var(--primary)} .answer-button[aria-pressed=true] span{color:#fff} .sample-feedback{min-height:38px;font-size:13px;margin:14px 0 0;line-height:1.55} .sample-feedback.correct{color:var(--success-text)} .sample-feedback.incorrect{color:var(--wrong-text)} .sample-feedback a{text-decoration:underline;font-weight:600;color:var(--primary);text-underline-offset:3px} .practice-footer{background:var(--surface-3);padding:14px 22px;font-size:13px;display:flex;align-items:center;justify-content:space-between;gap:12px;color:var(--muted)} .practice-footer a{font-weight:700;color:var(--primary);display:inline-flex;align-items:center;gap:4px;min-height:32px} .feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px} .feature-card{position:relative;display:flex;flex-direction:column;justify-content:space-between;min-height:212px;padding:18px;border-radius:var(--radius-xl);color:#fff;background:linear-gradient(155deg,var(--c1) 0%,var(--c2) 100%);box-shadow:0 10px 26px -14px var(--c2);transition:transform .2s,box-shadow .2s;overflow:hidden} .feature-card:hover{transform:translateY(-3px);box-shadow:0 18px 34px -14px var(--c2)} .feature-card-top{display:flex;justify-content:space-between;align-items:flex-start;gap:10px} .feature-chip{display:grid;place-items:center;width:52px;height:52px;border-radius:16px;background:#ffffff33} .feature-chip .icon{width:26px;height:26px} .feature-badge{background:#00000047;border-radius:var(--pill);padding:6px 11px;font-size:12px;font-weight:700;white-space:nowrap} .feature-card h3,.feature-card h2{color:#fff;font-size:22px;font-weight:800;margin:0 0 4px;letter-spacing:-.02em} .feature-card p{color:#fff;margin:0;font-size:14px;font-weight:600;background:#00000042;display:inline-block;padding:4px 10px;border-radius:var(--pill);align-self:flex-start;margin-top:6px;line-height:1.35} .feature-card.orange{--c1:var(--f-orange);--c2:var(--f-orange-2)} .feature-card.blue{--c1:var(--f-blue);--c2:var(--f-blue-2)} .feature-card.green{--c1:var(--f-green);--c2:var(--f-green-2)} .feature-card.purple{--c1:var(--f-purple);--c2:var(--f-purple-2)} .feature-card.indigo{--c1:var(--f-indigo);--c2:var(--f-indigo-2)} .feature-card.red{--c1:var(--f-red);--c2:var(--f-red-2)} .facts-strip{border-block:1px solid var(--line);background:var(--surface-3)} .facts-inner{display:flex;justify-content:space-between;align-items:center;padding-block:20px;gap:20px;font-size:14px;color:var(--muted)} .facts-inner>span{font-size:11px;letter-spacing:.08em;font-weight:800;text-transform:uppercase;color:var(--primary)} .facts-inner strong{font-size:26px;color:var(--ink);font-weight:800;margin-right:6px;letter-spacing:-.02em} .facts-inner a{font-size:13px;font-weight:700;color:var(--primary);display:inline-flex;align-items:center;gap:4px} .section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;margin-bottom:28px} .section-heading h2{margin-bottom:0} .section-heading .eyebrow{margin-bottom:10px} .section-heading>p{font-size:15px;margin-bottom:0;max-width:360px} .license-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px} .license-card{padding:22px 22px 0;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);transition:border-color .2s,transform .2s,box-shadow .2s;display:flex;flex-direction:column} .license-card:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow)} .license-card.featured{background:var(--primary-soft);border-color:var(--primary-soft-2)} .license-card-top{display:flex;align-items:center;gap:10px;margin-bottom:18px} .license-symbol{display:grid;place-items:center;min-width:46px;height:40px;padding:0 10px;background:var(--primary);color:#fff;font-size:15px;font-weight:800;border-radius:12px;letter-spacing:-.01em} .license-card :is(h2,h3){font-size:20px;margin-bottom:8px} .license-card p{font-size:14px;line-height:1.6;flex:1;min-height:42px;margin-bottom:18px} .license-meta{display:flex;justify-content:space-between;gap:8px;border-top:1px solid var(--line);padding-block:14px;font-size:12px;font-weight:600;color:var(--muted)} .license-card.featured .license-meta{border-color:var(--primary-soft-2)} .session-note{text-align:center;font-size:13px;margin:22px 0 0;display:flex;align-items:center;justify-content:center;gap:6px;flex-wrap:wrap} .session-note .icon{color:var(--info)} .session-note a{text-decoration:underline;text-underline-offset:3px;color:var(--primary);font-weight:700} .theory-section{background:var(--surface-3);border-block:1px solid var(--line);padding-block:64px} .theory-home{display:grid;grid-template-columns:.85fr 1.25fr;gap:80px} .theory-intro h2{font-size:clamp(1.9rem,3vw,2.6rem)} .theory-intro p{font-size:15px;max-width:340px} .theory-count{display:flex;align-items:center;gap:14px;margin-top:32px} .theory-count strong{font-size:34px;font-weight:800;letter-spacing:-.03em;color:var(--primary)} .theory-count span{font-size:13px;line-height:1.5;color:var(--muted)} .topic-list{display:grid;gap:10px} .topic-row{display:flex;align-items:center;gap:16px;padding:16px 18px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);transition:border-color .15s,box-shadow .15s} .topic-row:hover{border-color:var(--primary);box-shadow:var(--shadow)} .topic-row :is(h2,h3){font-size:16px;margin-bottom:3px;line-height:1.35} .topic-row div>span{font-size:13px;color:var(--muted)} .topic-number{display:grid;place-items:center;width:40px;height:40px;border-radius:12px;background:var(--info-soft);color:var(--info-text);font-weight:800;font-size:14px;flex:none} .all-topics{display:flex;justify-content:space-between;align-items:center;margin-top:12px;font-size:14px;font-weight:700;color:var(--primary);padding:6px 4px} .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:8px} .steps article{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px} .steps article>span{display:inline-flex;align-items:center;gap:6px;font-size:11px;letter-spacing:.08em;font-weight:800;text-transform:uppercase;color:var(--primary)} .steps h3{font-size:20px;margin:14px 0 8px} .steps p{font-size:14px;line-height:1.65;min-height:70px} .steps a{font-size:14px;font-weight:700;color:var(--primary);display:inline-flex;align-items:center;gap:6px;min-height:32px} .app-banner{background:linear-gradient(135deg,var(--primary) 0%,#5b21b6 100%);border-radius:var(--radius-xl);color:#fff;padding:52px 60px;display:grid;grid-template-columns:1.25fr 1fr;gap:56px;align-items:center;box-shadow:0 24px 50px -30px var(--primary)} .app-banner h2{color:#fff;font-size:clamp(1.8rem,2.8vw,2.4rem)} .app-banner p{color:#e9e2fb;max-width:450px;font-size:15px} .app-banner .small-note{color:#d8ccf6;font-size:12px} .app-banner .store-badges>div>span{color:#d8ccf6} .progress-preview{background:var(--surface);color:var(--ink);border-radius:var(--radius-lg);padding:26px;box-shadow:var(--shadow-float)} .preview-tag{display:block;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--primary);font-weight:800} .progress-preview h3{font-size:24px;font-weight:800;margin:10px 0 20px;letter-spacing:-.02em} .progress-feature{display:flex;gap:12px;align-items:center;margin-bottom:16px} .feature-icon{display:grid;place-items:center;border-radius:12px;width:40px;height:40px;flex:none;color:#fff} .feature-icon .icon{width:22px;height:22px} .feature-icon.orange{background:var(--f-orange-2)}.feature-icon.green{background:var(--f-green-2)}.feature-icon.purple{background:var(--f-purple-2)} .progress-feature strong{display:block;font-size:14px;font-weight:700;margin-bottom:2px} .progress-feature div>span{font-size:13px;color:var(--muted)} .progress-preview>a{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);padding-top:14px;min-height:44px;font-size:14px;font-weight:700;color:var(--primary)} .faq-section{display:grid;grid-template-columns:1fr 1.6fr;gap:70px} .faq-section>div>p{font-size:15px} .faq-list{display:grid;gap:10px} .faq-list details{border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--surface);padding:0 20px} .faq-list details[open]{border-color:var(--primary-soft-2)} summary{cursor:pointer;list-style:none} summary::-webkit-details-marker{display:none} .faq-list summary{font-size:15px;font-weight:700;display:flex;justify-content:space-between;align-items:center;gap:20px;padding:18px 0;line-height:1.5} .faq-list summary .icon{color:var(--primary);transition:transform .2s;width:22px;height:22px} .faq-list details[open] summary .icon{transform:rotate(180deg)} .faq-list p{font-size:15px;margin-bottom:20px} .footer{border-top:1px solid var(--line);padding-block:48px 28px;background:var(--surface-3)} .footer-main{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px} .footer-main>div{display:flex;align-items:flex-start;flex-direction:column} .footer-main .brand{margin-bottom:14px} .footer-main p{font-size:14px} .footer-main strong{font-size:13px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink);margin-bottom:16px} .footer-main>div>a:not(.brand){font-size:14px;color:var(--text);margin-bottom:4px;display:inline-flex;align-items:center;gap:4px;min-height:32px} .footer a:hover{text-decoration:underline;text-underline-offset:3px} .footer-company{font-style:normal;display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--muted);margin-top:8px} .footer-company strong{font-size:14px;letter-spacing:0;text-transform:none;margin-bottom:0} .footer-company a{color:var(--primary);display:inline-flex;align-items:center;gap:4px;min-height:28px} .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);padding-top:22px;margin-top:28px;font-size:12px;color:var(--muted)} .tabbar{display:none} .breadcrumbs{padding-top:22px} .breadcrumbs ol{display:flex;flex-wrap:wrap;gap:6px 10px;list-style:none;margin:0;padding:0;font-size:13px;line-height:1.6;color:var(--muted)} .breadcrumbs li:not(:first-child):before{content:"/";margin-right:10px;color:var(--line-strong)} .breadcrumbs a:hover{text-decoration:underline;color:var(--primary)} .page-heading{max-width:840px;margin-bottom:34px} .page-heading h1{font-size:clamp(2.1rem,4vw,3rem)} .page-heading p{font-size:16px} .page-heading .button{margin-top:8px} .breadcrumbs+.section{padding-top:40px} .subheading{font-size:clamp(1.4rem,2.2vw,1.75rem);margin:56px 0 22px} .revision-section{margin-top:44px;border:1px solid var(--line);border-radius:var(--radius-lg);padding:0 22px} .revision-section>summary{font-weight:700;padding-block:18px;display:flex;align-items:center;gap:10px} .revision-section>summary .icon{color:var(--primary)} .revision-section>p{margin-top:4px;font-size:15px} .revision-section .license-grid{padding-bottom:22px} .category-tabs{display:flex;gap:8px;margin-bottom:26px;flex-wrap:wrap} .category-tabs a{border:1px solid var(--line-strong);padding:11px 18px;border-radius:var(--pill);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px} .category-tabs a[aria-current]{background:var(--primary);border-color:var(--primary);color:#fff} .search-box{max-width:720px;margin:20px 0} .search-box>label{display:block;font-size:14px;font-weight:700;margin-bottom:10px} .search-box>div{display:flex;align-items:center;gap:6px;background:var(--surface-2);border:1px solid var(--surface-2);border-radius:var(--radius);padding-left:14px;transition:border-color .15s,background .15s} .search-box>div:focus-within{border-color:var(--secondary);background:var(--surface)} .search-box .icon{color:var(--subtle);width:22px;height:22px} .search-box input{border:0;background:transparent;min-width:0;flex:1;padding:16px 14px 16px 6px;font-size:15px;color:var(--ink)} .search-box input::placeholder{color:var(--placeholder)} .search-box input:focus-visible{outline:none} .theory-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px 16px;margin-top:28px} .search-results{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:26px} .search-result{border:1px solid var(--line);border-radius:var(--radius-lg);padding:20px;background:var(--surface)} .search-result:hover{border-color:var(--primary)} .search-result .eyebrow{margin-bottom:8px} .search-result h2{font-size:18px;margin:0 0 6px} .search-result p{font-size:14px;margin:0} .empty-search{padding-block:25px} .lesson-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px} .lesson-card{border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--surface);overflow:hidden;display:flex;flex-direction:column;transition:border-color .15s,box-shadow .15s} .lesson-card:hover{border-color:var(--primary);box-shadow:var(--shadow)} .lesson-thumb{display:grid;place-items:center;padding:14px;min-height:170px;border-bottom:1px solid var(--line);background:var(--surface-3)} .lesson-thumb img{object-fit:contain;width:220px;height:145px} .lesson-card>div:not(.lesson-thumb){padding:20px;flex:1;display:flex;flex-direction:column} .lesson-card .eyebrow{margin-bottom:10px} .lesson-card h2{font-size:19px;margin-bottom:8px;line-height:1.3} .lesson-card p{font-size:14px;margin-bottom:16px;flex:1} .lesson-card .text-link{font-size:14px} .reading-layout{display:grid;grid-template-columns:minmax(0,760px) 300px;gap:60px;padding-block:40px 80px} .lesson-article h1{font-size:clamp(2rem,3.6vw,2.9rem);overflow-wrap:anywhere} .article-meta{font-size:14px;display:flex;align-items:center;gap:8px;flex-wrap:wrap} .article-meta>span[aria-hidden]{color:var(--line-strong)} .article-meta .article-topic{display:inline-flex;align-items:center;gap:5px;color:var(--primary);font-weight:600;text-decoration:underline;text-decoration-color:var(--primary-soft-2);text-underline-offset:3px;padding-block:4px} .article-meta .article-topic:hover{text-decoration-color:currentColor} .article-image{margin:26px 0;background:var(--surface-3);border:1px solid var(--line);padding:22px;border-radius:var(--radius-lg);text-align:center} .article-image img{object-fit:contain;width:480px;height:280px} .article-image figcaption{font-size:13px;color:var(--muted);padding-top:14px} .prose{font-size:17px;line-height:1.8;color:var(--text)} .prose p{color:var(--text);margin-bottom:18px} .prose ul,.prose ol{padding-left:22px;margin-block:12px 22px} .prose li{margin-block:6px} .prose h2{font-size:clamp(1.35rem,2vw,1.6rem);margin-top:36px} .prose a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;overflow-wrap:anywhere;font-weight:600} .prose .button{text-decoration:none;color:#fff} .article-source{font-size:13px;line-height:1.7;color:var(--muted);padding-top:18px;border-top:1px solid var(--line);margin-top:30px} .article-source a{text-decoration:underline;text-underline-offset:3px;display:inline-block;min-height:28px;line-height:28px} .reading-aside{font-size:14px} .reading-aside>div:first-child{background:var(--surface-3);border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px} .reading-aside h2{font-size:18px;line-height:1.35} .reading-aside nav{display:flex;flex-direction:column;max-height:480px;overflow:auto} .reading-aside nav a{padding:10px 0;border-bottom:1px solid var(--line);color:var(--muted);line-height:1.5} .reading-aside nav a[aria-current]{font-weight:700;color:var(--primary)} .reading-aside nav a:hover{text-decoration:underline} .aside-app{margin-top:16px;padding:24px;background:linear-gradient(135deg,var(--primary),#5b21b6);color:#fff;border-radius:var(--radius-lg)} .aside-app h3{font-size:22px;color:#fff;font-weight:800} .aside-app p{color:#e9e2fb;font-size:14px} .aside-app .button{width:100%} .related-quizzes{margin-top:48px} .related-quizzes>h2{font-size:clamp(1.4rem,2.2vw,1.8rem)} .related-quizzes>p{font-size:15px} .theory-question{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);margin-block:10px} .theory-question summary{padding:18px;display:flex;gap:16px;justify-content:space-between;align-items:center;line-height:1.6;font-size:15px;font-weight:600} .theory-question summary .icon{color:var(--primary);flex:none;transition:transform .2s;width:22px;height:22px} .theory-question[open] summary .icon{transform:rotate(180deg)} .theory-question p{padding:0 18px 16px;font-size:15px} .theory-question img{object-fit:contain;margin:6px 18px} .related-quizzes>.button{margin-top:18px} .correct{color:var(--success-text)} .incorrect{color:var(--wrong-text)} .lesson-pagination{display:flex;justify-content:space-between;gap:16px;border-top:1px solid var(--line);margin-top:44px;padding-top:26px} .lesson-pagination a{flex:1;font-size:14px;line-height:1.5;padding:16px;border:1px solid var(--line);border-radius:var(--radius-lg)} .lesson-pagination a:hover{border-color:var(--primary)} .lesson-pagination a:last-child{text-align:right} .lesson-pagination span{display:inline-flex;align-items:center;gap:4px;font-size:12px;font-weight:700;color:var(--primary);margin-bottom:8px} .lesson-pagination strong{display:block} .sign-groups>section{margin-top:48px} .sign-groups h2{font-size:clamp(1.4rem,2.2vw,1.75rem)} .sign-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px} .sign-grid a{border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--surface);text-align:center;padding:18px 12px;transition:border-color .15s,box-shadow .15s} .sign-grid img{object-fit:contain;width:160px;height:125px} .sign-grid h3{font-size:13px;font-weight:600;margin:12px 0 0;line-height:1.5} .sign-grid a:hover{border-color:var(--primary);box-shadow:var(--shadow)} .app-page-hero{display:grid;grid-template-columns:1.3fr 1fr;gap:70px;align-items:center;margin-bottom:52px} .app-identity{text-align:center;background:var(--surface-3);padding:44px 28px;border-radius:var(--radius-xl);border:1px solid var(--line)} .app-identity img{border-radius:32px;box-shadow:0 18px 40px #3700a426;margin-bottom:18px} .app-identity h2{font-size:24px;line-height:1.3;margin-bottom:4px} .app-identity p{font-size:14px;margin-bottom:0} .identity-tags{display:flex;gap:8px;justify-content:center;margin-top:20px;flex-wrap:wrap} .identity-tags span{padding:6px 12px;background:var(--surface);border:1px solid var(--line);border-radius:var(--pill);font-size:12px;font-weight:600} .rating{display:inline-flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:4px 12px;font-size:14px;font-weight:600;color:var(--ink);margin:18px 0 0;padding:10px 16px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);max-width:100%} .rating-score{display:inline-flex;align-items:center;gap:6px;white-space:nowrap} .rating .icon{color:var(--secondary);width:20px;height:20px} .rating-count{color:var(--muted);font-weight:500;text-align:center} .store-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px} .store-card{padding:32px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-xl)} .store-card h2{font-size:24px;line-height:1.3} .store-card p{font-size:15px} .store-card>.button{margin-top:12px} .store-card .text-link{margin-top:6px} .table-wrap{overflow:auto;border:1px solid var(--line);border-radius:var(--radius-lg);margin-top:30px} table{width:100%;border-collapse:collapse;text-align:left;font-size:14px;background:var(--surface);min-width:530px} caption{text-align:left;padding:18px 22px;background:var(--surface-3);font-size:13px;color:var(--muted)} th,td{padding:18px 22px;border-bottom:1px solid var(--line);line-height:1.5} thead{background:var(--surface-3)} thead th{font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)} tbody th{font-weight:600} tbody td:nth-child(3){background:var(--primary-soft);font-weight:600} .text-page{max-width:820px} .text-page h1{margin-bottom:30px} .notice{background:var(--secondary-soft);border:1px solid var(--secondary);border-radius:var(--radius);padding:16px;font-size:15px;color:var(--ink)} .quiz-page{padding-block:44px} .quiz-page .page-heading h1{font-size:clamp(2rem,3.8vw,2.9rem)} .quiz-setup{display:grid;grid-template-columns:1.5fr 1fr;gap:24px} .setup-main{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-xl);padding:30px} .setup-main h2{font-size:22px;margin-bottom:22px} .mode-options{display:grid;gap:10px} .mode-option{display:flex;align-items:center;gap:14px;border:1.5px solid var(--line);padding:16px 18px;border-radius:var(--radius-lg);cursor:pointer;transition:border-color .15s,background .15s} .mode-option:hover{border-color:var(--line-strong)} .mode-option:has(input:checked){background:var(--primary-soft);border-color:var(--primary)} .mode-option input{accent-color:var(--primary);width:20px;height:20px;flex-shrink:0;margin:0} .mode-option strong{display:block;font-size:15px;margin-bottom:4px} .mode-option small{display:block;font-size:13px;color:var(--muted);line-height:1.5} .mode-icon{margin-left:auto;display:grid;place-items:center;width:40px;height:40px;border-radius:12px;background:var(--surface-2);color:var(--primary);flex:none} .mode-option:has(input:checked) .mode-icon{background:var(--primary);color:#fff} .mode-icon .icon{width:22px;height:22px} .start-quiz{margin-top:22px;width:100%} .setup-main .small-note{text-align:center} .setup-aside{background:var(--surface-3);border:1px solid var(--line);border-radius:var(--radius-xl);padding:30px} .setup-aside h3{font-size:26px;font-weight:800;letter-spacing:-.02em} .setup-aside dl{margin:22px 0} .setup-aside dl>div{display:flex;justify-content:space-between;border-bottom:1px solid var(--line);padding:12px 0;font-size:14px;gap:20px} .setup-aside dd{font-weight:800;margin:0;color:var(--primary)} .setup-aside p{font-size:14px} .setup-aside .text-link{font-size:14px} #topic-picker{margin-top:20px} #topic-picker label{display:block;font-size:14px;font-weight:700;margin-bottom:8px} #topic-picker select,select{width:100%;padding:14px 40px 14px 14px;border:1px solid var(--line-strong);border-radius:var(--radius);background:var(--surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%233700a4' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m19.5 8.25-7.5 7.5-7.5-7.5'/%3E%3C/svg%3E") no-repeat right 14px center/18px;color:var(--ink);font-size:15px;appearance:none} .session-top{display:flex;justify-content:space-between;align-items:center;gap:16px} .session-top .eyebrow{margin:0 0 6px} .session-top h2{font-size:24px;margin-bottom:0} .timer{display:inline-flex;align-items:center;gap:6px;font-variant-numeric:tabular-nums;font-size:20px;font-weight:800;margin-left:auto;background:var(--surface-2);border-radius:var(--pill);padding:10px 16px;letter-spacing:-.01em} .timer .icon{width:20px;height:20px;color:var(--primary)} .timer.urgent{color:var(--error);background:var(--error-soft)} .timer.urgent .icon{color:var(--error)} .session-top .text-button{font-size:14px} progress{display:block;width:100%;height:6px;appearance:none;border:0;background:var(--surface-2);margin:18px 0 24px;border-radius:8px;overflow:hidden} progress::-webkit-progress-bar{background:var(--surface-2);border-radius:8px} progress::-webkit-progress-value{background:var(--primary);border-radius:8px} progress::-moz-progress-bar{background:var(--primary)} .session-layout{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:22px} .question-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-xl);padding:28px} .question-topic{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--info-text);background:var(--info-soft);border-radius:var(--pill);padding:6px 12px;margin:0} .question-content{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:240px;padding:18px 0 24px;gap:22px} .question-content img{height:200px;width:300px;object-fit:contain;background:var(--surface-3);border-radius:var(--radius);padding:8px} .question-content h3{font-size:21px;line-height:1.55;width:100%;margin-bottom:0;font-weight:600} .answer-options{display:grid;grid-template-columns:1fr 1fr;gap:12px} .answer-options.multiple{grid-template-columns:1fr} .answer-options.multiple .answer-button{text-align:left;justify-content:flex-start;padding:16px 18px;font-size:15px;font-weight:600;line-height:1.5} .answer-options .answer-button{min-height:60px} .answer-options .is-correct,.answer-options .is-correct[aria-pressed=true]{background:var(--success-soft);border-color:var(--success);color:var(--success-text)} .answer-options .is-correct span{color:var(--success-text)} .answer-options .is-wrong,.answer-options .is-wrong[aria-pressed=true]{background:var(--wrong-soft);border-color:var(--wrong);color:var(--wrong-text)} .answer-options .is-wrong span{color:var(--wrong-text)} .question-actions{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:26px;padding-top:22px;border-top:1px solid var(--line)} .question-actions .button{font-size:14px;padding:11px 18px;min-height:46px;gap:8px} .question-actions .text-button{font-size:13px;padding:8px 10px;display:inline-flex;align-items:center;gap:6px} .question-actions [aria-pressed=true]{color:var(--secondary-deep);background:var(--secondary-soft)} .question-map{background:var(--surface-3);border:1px solid var(--line);border-radius:var(--radius-xl);padding:22px;height:fit-content} .question-map h3{font-size:18px;margin-bottom:6px} .question-map>p{font-size:13px} .question-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:7px} .question-grid button{display:grid;place-items:center;aspect-ratio:1;border:1px solid var(--line-strong);border-radius:10px;background:var(--surface);font-size:13px;font-weight:600;padding:0;min-height:36px;position:relative;color:var(--text)} .question-grid button.answered{background:var(--primary-soft);border-color:var(--primary-soft-2);color:var(--primary)} .question-grid button[aria-current=true]{background:var(--primary);color:#fff;border-color:var(--primary)} .question-grid button.flagged:after{content:"";position:absolute;right:-3px;top:-3px;border-radius:50%;width:9px;height:9px;background:var(--secondary);border:1.5px solid #fff} .map-legend{display:flex;flex-wrap:wrap;gap:8px 14px;font-size:12px;margin:14px 0 18px;color:var(--muted)} .map-legend span{display:flex;align-items:center;gap:6px} .map-legend i{width:9px;height:9px;border-radius:50%} .legend-answered{background:var(--primary)} .legend-flagged{background:var(--secondary)} .finish-quiz{width:100%;font-size:14px;min-height:48px;padding-inline:12px} .question-map .small-note{font-size:12px;margin-bottom:0} .answer-feedback{background:var(--success-soft);border-left:4px solid var(--success);border-radius:10px;padding:16px 18px;margin-top:18px;font-size:14px;line-height:1.7;color:var(--ink)} .answer-feedback.is-wrong{background:var(--wrong-soft);border-color:var(--wrong)} .answer-feedback strong{display:block;margin-bottom:2px} .answer-feedback a{text-decoration:underline;display:inline-block;margin-top:6px;font-weight:700;color:var(--primary);text-underline-offset:3px} .quiz-explainer{max-width:840px;padding-top:30px} .quiz-explainer h2{font-size:clamp(1.4rem,2.2vw,1.75rem)} .quiz-explainer p{font-size:15px} .quiz-explainer .fineprint{font-size:12px} .page-quiz .app-banner{margin-bottom:72px} dialog{width:min(490px,calc(100% - 36px));border:1px solid var(--line);border-radius:var(--radius-xl);padding:30px;color:var(--ink);box-shadow:var(--shadow-float);background:var(--surface)} dialog::backdrop{background:#1c1c1e8c} dialog h2{font-size:24px} dialog p{font-size:15px} .dialog-actions{display:flex;gap:10px;margin-top:22px} .dialog-actions .button{font-size:14px;flex:1;padding-inline:10px} .result-heading{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-xl);padding:36px;text-align:center;box-shadow:var(--shadow)} .result-heading h2{font-size:clamp(1.8rem,3vw,2.4rem)} .result-heading>p{font-size:15px} .result-stats{display:flex;justify-content:center;gap:16px;margin:24px 0;flex-wrap:wrap} .result-stat{background:var(--surface-3);border-radius:var(--radius-lg);padding:16px 22px;min-width:120px} .result-stat strong{display:block;font-size:28px;font-weight:800;letter-spacing:-.02em;color:var(--primary)} .result-stat span{font-size:12px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.05em} .result-actions{display:flex;justify-content:center;gap:12px;margin-top:24px;flex-wrap:wrap} .result-app{padding:24px 28px;border:1px solid var(--line);border-radius:var(--radius-xl);margin:20px 0;background:var(--surface-3)} .result-app strong{font-size:18px} .result-app p{font-size:14px;margin-top:8px} .review-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:36px;margin-bottom:16px} .review-heading h3{font-size:22px;margin:0} .review-heading label{font-size:14px;display:flex;align-items:center;gap:8px;font-weight:600} .review-heading input{accent-color:var(--primary);width:20px;height:20px} .review-heading label{min-height:32px} .review-item{border:1px solid var(--line);border-radius:var(--radius-lg);margin-bottom:12px;padding:22px;background:var(--surface)} .review-item>span{font-size:11px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)} .review-item h4{font-size:16px;font-weight:600;line-height:1.6;margin:12px 0} .review-item p{font-size:14px;margin-bottom:0} .review-item img{height:120px;width:180px;object-fit:contain;margin-block:12px} .review-item a{font-size:14px;text-decoration:underline;display:inline-block;margin-top:10px;color:var(--primary);font-weight:600} .review-item.error{border-left:4px solid var(--wrong)} .review-item.passed{border-left:4px solid var(--success)} .subheading+div{margin-bottom:22px} .session-bar{display:none} @media(max-width:800px){ .page-quiz:has(#quiz-session:not([hidden])) .tabbar{display:none} .page-quiz:has(#quiz-session:not([hidden])) .session-bar{position:fixed;left:50%;transform:translateX(-50%);bottom:max(12px,env(safe-area-inset-bottom));z-index:30;display:flex;align-items:center;justify-content:space-between;gap:12px;width:min(560px,calc(100% - 24px));height:var(--tabbar);padding:10px 12px 10px 18px;background:var(--surface);border:1px solid var(--line);border-radius:var(--pill);box-shadow:var(--shadow-float)} .session-bar-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--ink);min-height:44px} .session-bar-link .icon{color:var(--primary);width:22px;height:22px} .session-bar .button{min-height:44px;padding:10px 18px} .question-map{scroll-margin-top:16px} } .store-badges{display:flex;align-items:flex-start;flex-wrap:wrap;gap:14px;margin-top:14px} .store-badges>div{display:flex;flex-direction:column;align-items:center;max-width:100%} .store-badge{display:flex;align-items:center;justify-content:center;height:60px;border-radius:8px;max-width:100%} .store-badge img{display:block;object-fit:contain} .store-badge-apple img{width:135px;height:45px} .store-badge-google img{width:152px;height:auto} .store-badges>div>span{font-size:12px;line-height:1.5;color:var(--muted);text-align:center;margin-top:2px} .hero-app-download .store-badges{margin-top:6px} .app-download{scroll-margin-top:25px} .download-dialog{position:fixed;width:min(520px,calc(100% - 36px));padding:36px 30px 26px} .download-dialog h2{font-size:30px;line-height:1.2;margin-bottom:14px} .download-dialog>p{font-size:15px;margin-bottom:12px} .download-dialog>.small-note{font-size:13px;margin-top:22px;margin-bottom:0} .download-close,.feedback-close{position:absolute;right:14px;top:14px;display:grid;place-items:center;width:42px;height:42px;border-radius:50%;background:var(--surface-2);color:var(--ink)} .download-close:hover,.feedback-close:hover{background:var(--line)} .download-close .icon,.feedback-close .icon{width:22px;height:22px} .quiz-topics-section{padding-top:28px} .quiz-topics-section>h2{font-size:clamp(1.5rem,2.4vw,1.9rem)} .quiz-topic-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:26px} .quiz-topic-links>a{display:flex;flex-direction:column;gap:10px;padding:20px 22px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);transition:border-color .15s,box-shadow .15s} .quiz-topic-links>a:hover{border-color:var(--primary);box-shadow:var(--shadow)} .quiz-topic-links strong,.quiz-topic-links h2{font-size:16px;line-height:1.45;margin:0} .quiz-topic-links p{font-size:14px;margin:0;flex:1} .quiz-topic-links a>span{font-size:13px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:4px} .topic-reading-links{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:20px 0} .topic-reading-links a{display:flex;justify-content:space-between;align-items:center;gap:10px;font-size:14px;font-weight:600;line-height:1.5;padding:14px 16px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)} .topic-reading-links a .icon{color:var(--primary);flex:none} .topic-reading-links a:hover{border-color:var(--primary)} .topic-example{border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px;margin:16px 0;background:var(--surface)} .topic-example>img{display:block;width:180px;height:130px;object-fit:contain;margin-bottom:16px;background:var(--surface-3);border-radius:var(--radius);padding:6px} .topic-example h3{font-size:16px;line-height:1.6;font-weight:600} .topic-example summary{font-size:14px;font-weight:700;padding:10px 0;display:flex;justify-content:space-between;align-items:center;gap:20px;color:var(--primary)} .topic-example summary .icon{transition:transform .2s} .topic-example details[open] summary .icon{transform:rotate(180deg)} .topic-example details p{font-size:15px;margin-top:10px} .topic-example details a{display:inline-block;font-size:14px;font-weight:600;color:var(--primary);text-decoration:underline;text-underline-offset:4px;padding-block:10px} .share-page{max-width:760px;margin:22px 0 28px;border:1px solid var(--line);border-radius:var(--radius-lg);padding:0 18px} .share-page>summary{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:15px 0;font-size:14px;font-weight:700} .share-page>summary .icon{color:var(--primary)} .share-panel{padding:0 0 18px} .share-panel p{font-size:14px;max-width:65ch} .share-panel label{display:block;font-size:14px;font-weight:700;margin-bottom:8px} .share-panel input{display:block;width:100%;min-width:0;padding:13px;border:1px solid var(--line-strong);border-radius:var(--radius);color:var(--ink);background:var(--surface-2);font-size:14px} .share-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px} .share-panel [role=status]:empty{display:none} .share-panel [role=status]{margin:12px 0 0} .guide-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px 22px;margin-top:22px} .guide-actions .button{margin-top:0} .guide-jump{display:inline-flex;padding-block:6px;font-size:14px} .study-guide{max-width:960px;padding:34px;margin:34px 0 50px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-xl);scroll-margin-top:100px;box-shadow:var(--shadow)} .study-guide h2{font-size:clamp(1.5rem,2.6vw,2.1rem);max-width:27ch;margin-top:10px} .study-guide p,.guide-steps{max-width:78ch} .guide-lead{font-size:17px} .guide-figures{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0} .guide-figures figure{flex:1 1 170px;margin:0;padding:18px;background:var(--surface-3);border:1px solid var(--line);border-radius:var(--radius-lg);text-align:center} .guide-figures a{display:flex;align-items:center;flex-direction:column;gap:14px;height:100%} .guide-figures img{height:130px;width:180px;object-fit:contain} .guide-figures figcaption{font-size:13px;line-height:1.5;text-decoration:underline;text-underline-offset:3px;color:var(--primary);font-weight:600} .guide-table-wrap{margin:28px 0;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden} .guide-table-wrap table{width:100%;min-width:0;border-collapse:collapse;table-layout:fixed;text-align:left;font-size:15px;line-height:1.6} .guide-table-wrap caption{font-size:16px;font-weight:700;color:var(--ink);padding:16px 18px;background:var(--surface-3)} .guide-table-wrap th,.guide-table-wrap td{padding:14px 18px;border-bottom:1px solid var(--line);vertical-align:top;overflow-wrap:break-word} .guide-table-wrap tbody tr:last-child :is(th,td){border-bottom:0} .guide-table-wrap thead{background:var(--surface-3)} .guide-table-wrap thead th{text-transform:none;letter-spacing:0;font-size:13px;color:var(--muted);overflow-wrap:normal;hyphens:manual} .guide-table-wrap th:first-child{width:30%} .guide-table-wrap td{color:var(--text)} .guide-section{margin-top:28px} .guide-section h3{font-size:19px;margin-bottom:10px} .guide-section p{font-size:16px} .guide-steps{padding-left:22px;line-height:1.75;color:var(--text)} .guide-steps li+li{margin-top:10px} .guide-steps li::marker{color:var(--primary);font-weight:800} .guide-reading{padding-left:22px} .guide-reading li{padding:8px 0} .guide-reading li::marker{color:var(--primary);font-weight:800} .guide-reading a{text-decoration:underline;text-underline-offset:4px;line-height:1.6;font-weight:600;color:var(--primary)} .guide-next{display:flex;flex-wrap:wrap;gap:18px;align-items:center;margin:28px 0} .guide-next>a{font-size:14px} .guide-source{padding-top:20px;border-top:1px solid var(--line)} .guide-source p{font-size:13px} .guide-source a{text-decoration:underline;text-underline-offset:3px;color:var(--primary)} .guide-related{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px} .guide-related .eyebrow{width:100%;margin-bottom:4px} .guide-related>a{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;padding:10px 14px;border-radius:var(--pill);background:var(--primary-soft);color:var(--primary);line-height:1.4} .guide-callout{padding:22px;background:var(--primary-soft);border:1px solid var(--primary-soft-2);border-radius:var(--radius-lg);margin:30px 0} .guide-callout p{font-size:14px;margin:10px 0 0} .guide-callout a{font-size:17px;line-height:1.5;color:var(--primary);font-weight:700;text-decoration:underline;text-underline-offset:4px;display:inline-flex;align-items:center;gap:6px} .study-index{margin-top:52px;max-width:980px} .study-index h2{margin-top:14px} #lezioni{scroll-margin-top:100px} .reaction-tool{margin:30px 0;padding:26px;background:var(--surface-3);border:1px solid var(--line);border-radius:var(--radius-lg)} .reaction-tool h3{font-size:22px;line-height:1.25;margin-top:12px} .reaction-controls{display:grid;gap:20px;margin-top:24px} .reaction-controls label{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:14px;font-weight:700} .reaction-controls output{font-variant-numeric:tabular-nums;color:var(--primary)} .reaction-controls input{display:block;width:100%;height:40px;accent-color:var(--primary);cursor:pointer;margin:6px 0 0} .reaction-result{display:flex;flex-direction:column;gap:10px;padding:22px;margin:18px 0;background:var(--surface);border-radius:var(--radius-lg);border:1px solid var(--line)} .reaction-result>span{font-size:13px;line-height:1.6} .reaction-result strong{font-size:clamp(1.8rem,5vw,2.6rem);letter-spacing:-.03em;line-height:1.15;font-variant-numeric:tabular-nums;color:var(--primary);font-weight:800} .reaction-tool .small-note{line-height:1.7;margin-bottom:0} .junction-cross-promo{display:flex;align-items:center;justify-content:space-between;gap:22px;padding:22px 26px;border:1px solid var(--line);border-radius:var(--radius-xl);background:linear-gradient(135deg,#eef0fb,#f4f2fd);margin:0 0 28px} .junction-cross-promo>div{display:flex;gap:16px;align-items:flex-start} .junction-cross-promo .feature-icon{background:var(--f-indigo-2)} .junction-cross-promo strong{display:block;font-size:18px;line-height:1.3;letter-spacing:-.02em} .junction-cross-promo p{margin:5px 0 0;font-size:14px} .junction-cross-promo>.text-link{white-space:nowrap} .junction-home-promo{margin-top:30px} .feedback-launch{position:fixed;right:24px;bottom:max(18px,env(safe-area-inset-bottom));z-index:20;display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:50px;padding:12px 20px;background:var(--primary);color:#fff;border:2px solid #fff;border-radius:var(--pill);box-shadow:var(--shadow-float);font-size:14px;font-weight:700;text-decoration:none} .feedback-launch .icon{width:22px;height:22px} .feedback-launch:hover{background:var(--primary-hover)} .feedback-launch[aria-busy=true]{opacity:.75} .feedback-dialog{position:fixed;inset:auto 24px 82px auto;margin:0;width:min(460px,calc(100vw - 40px));max-height:calc(100dvh - 116px);padding:26px;border:1px solid var(--line);border-radius:var(--radius-xl);background:var(--surface);box-shadow:var(--shadow-float);overflow-y:auto;overscroll-behavior:contain;color:var(--ink)} .feedback-dialog::backdrop{background:#1c1c1e3d} .feedback-header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;position:sticky;top:-26px;z-index:2;background:var(--surface);padding-block:10px} .feedback-header .eyebrow{margin:0} .feedback-close{position:static;flex-shrink:0} .feedback-dialog h2{font-size:26px;line-height:1.15;margin:0 0 12px} .feedback-intro{font-size:14px;line-height:1.65;margin-bottom:20px} .feedback-step{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--muted);margin:0 0 12px;line-height:1.6} .feedback-step strong{color:var(--ink)} .feedback-options{display:grid;gap:10px} .feedback-options>button{display:flex;align-items:center;gap:12px;text-align:left;padding:14px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);color:var(--ink);min-height:76px;transition:border-color .15s,background .15s} .feedback-options>button:hover{background:var(--primary-soft);border-color:var(--primary)} .feedback-options strong{display:block;font-size:14px;margin-bottom:4px;line-height:1.35} .feedback-options small{display:block;color:var(--muted);font-size:12px;line-height:1.5} .feedback-options>button>span:last-child{margin-left:auto;color:var(--subtle);display:inline-flex} .feedback-choice-icon{display:grid;place-items:center;flex:0 0 40px;height:40px;border-radius:12px;background:var(--primary-soft);color:var(--primary)} .feedback-choice-icon .icon{width:22px;height:22px} .feedback-back,.feedback-new{border:0;background:transparent;font-size:13px;font-weight:600;color:var(--primary);padding:10px 4px;text-decoration:underline;text-underline-offset:3px} .feedback-field{margin:16px 0} .feedback-field>label{display:block;font-size:14px;font-weight:700;line-height:1.5;margin-bottom:8px} .feedback-field>label>span{font-weight:400;color:var(--muted)} .feedback-field :is(input,textarea,select){display:block;width:100%;min-width:0;background:var(--surface-2);color:var(--ink);border:1px solid var(--surface-2);border-radius:var(--radius);padding:12px 14px;font-size:15px;line-height:1.55;transition:border-color .15s,background .15s} .feedback-field :is(input,textarea,select):focus{background:var(--surface);border-color:var(--secondary);outline:none} .feedback-field textarea{resize:vertical;min-height:120px;max-height:260px;font-family:inherit} .feedback-field textarea::placeholder{font-size:14px;color:var(--placeholder)} .feedback-field [aria-invalid=true]{border-color:var(--error);border-width:2px;background:var(--surface)} .feedback-input-meta{display:flex;justify-content:space-between;gap:15px;font-size:12px;line-height:1.5;color:var(--muted);margin-top:8px} #feedback-count{white-space:nowrap;font-variant-numeric:tabular-nums} .feedback-check{display:flex;align-items:flex-start;gap:10px;font-size:14px;line-height:1.6;padding:7px 0;cursor:pointer} .feedback-check input{flex:0 0 20px;width:20px;height:20px;accent-color:var(--primary);margin:2px 0 0} .feedback-contact-check{margin-top:8px} .feedback-context{background:var(--primary-soft);padding:12px 14px;border-radius:var(--radius);margin:14px 0} .feedback-context p{margin:5px 0 0;font-size:13px;line-height:1.6;max-height:none;overflow:visible} .feedback-ministerial{font-size:13px;line-height:1.6;margin:12px 0;color:var(--muted)} .feedback-data{border-block:1px solid var(--line);margin-top:18px;font-size:13px} .feedback-data summary{padding:12px 0;font-weight:700;line-height:1.5;display:flex;justify-content:space-between;align-items:center;gap:10px} .feedback-data summary .icon{color:var(--primary);transition:transform .2s} .feedback-data[open] summary .icon{transform:rotate(180deg)} .feedback-data p{font-size:13px;line-height:1.65} .feedback-data>span{display:block;overflow-wrap:anywhere;line-height:1.5;margin:8px 0 12px;color:var(--muted)} .feedback-privacy{font-size:12px;line-height:1.7;margin:14px 0} .feedback-privacy a{display:inline-flex;align-items:center;gap:4px;line-height:26px;text-decoration:underline;text-underline-offset:3px;color:var(--primary)} .feedback-submit{width:100%;font-size:15px} .feedback-honeypot{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden} .feedback-timer{display:flex;align-items:center;gap:8px;font-size:13px;line-height:1.5;padding:12px 14px;background:var(--secondary-soft);border:1px solid #f2c27d;border-radius:var(--radius);color:var(--secondary-deep)} .feedback-field-error,.feedback-error{color:var(--error)!important} .feedback-field-error{font-size:13px;margin:8px 0 0} #feedback-status{font-size:13px;line-height:1.6;margin:16px 0 0;padding:12px 14px;background:var(--surface-3);border:1px solid var(--line);border-radius:var(--radius)} .feedback-success-icon{display:grid;place-items:center;width:56px;height:56px;border-radius:50%;background:var(--success-soft);color:var(--success);margin:20px 0} .feedback-success-icon .icon{width:30px;height:30px} #feedback-success h3{font-size:24px;margin-bottom:14px} #feedback-success p{font-size:15px} #feedback-reference{font-size:13px!important;font-weight:700;font-variant-numeric:tabular-nums} #feedback-success .button{width:100%;margin-top:12px} .feedback-new{display:block;margin:12px auto 0;min-height:40px} .feedback-load-error{position:fixed;right:16px;bottom:78px;z-index:21;width:min(340px,calc(100vw - 32px));padding:18px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-float)} .feedback-load-error p{font-size:14px;line-height:1.6;margin:0 34px 12px 0} .feedback-load-error a{display:inline-block;font-size:13px;text-decoration:underline;line-height:28px;color:var(--primary);font-weight:600} .feedback-load-error button{position:absolute;right:10px;top:10px;width:34px;height:34px;font-size:23px;background:var(--surface-2);border-radius:50%;line-height:1} @media(min-width:1450px){.hero{padding-block:76px 88px}} @media(max-width:1100px){.container{width:calc(100% - 64px)}.hero{gap:40px}.hero h1{font-size:3rem}.hero-lead{font-size:16px}.theory-home{gap:48px}.app-banner{padding:42px;gap:32px}.reading-layout{gap:32px;grid-template-columns:minmax(0,1fr) 250px}.session-layout{grid-template-columns:minmax(0,1fr) 250px}.question-card{padding:22px}.sign-grid{grid-template-columns:repeat(4,1fr)}.feature-card{min-height:190px}} @media(max-width:800px){ body{padding-bottom:calc(var(--tabbar) + 22px + env(safe-area-inset-bottom))} .container{width:calc(100% - 40px)} .header{height:64px}.header-inner{gap:12px}.brand{font-size:17px}.brand img{width:34px;height:34px}.brand-light{display:none} .nav{display:none} .header-cta{padding:9px 14px;min-height:38px;font-size:13px} .tabbar{position:fixed;left:50%;transform:translateX(-50%);bottom:max(12px,env(safe-area-inset-bottom));z-index:30;display:flex;justify-content:space-around;align-items:stretch;width:min(560px,calc(100% - 24px));height:var(--tabbar);background:var(--surface);border:1px solid var(--line);border-radius:var(--pill);box-shadow:var(--shadow-float);padding:6px} .tabbar a{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:11px;font-weight:600;color:var(--subtle);border-radius:var(--pill);min-width:0} .tabbar a span{white-space:nowrap} .tabbar .icon{width:24px;height:24px} .tabbar .icon-active{display:none} .tabbar a[aria-current]{color:var(--ink);font-weight:800} .tabbar a[aria-current] .icon{display:none} .tabbar a[aria-current] .icon-active{display:inline-block;color:var(--primary)} .feedback-launch{right:14px;bottom:calc(var(--tabbar) + 24px + env(safe-area-inset-bottom));min-height:48px;padding:0;width:48px;border-radius:50%} .feedback-launch span{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap} .feedback-dialog{inset:auto 0 0;width:100%;max-width:100%;max-height:calc(100dvh - 16px);padding:20px 20px max(24px,env(safe-area-inset-bottom));border-radius:var(--radius-xl) var(--radius-xl) 0 0;border-bottom:0} .feedback-header{top:-20px} .feedback-load-error{bottom:calc(var(--tabbar) + 82px)} .hero{grid-template-columns:1fr;grid-template-areas:"copy" "side" "download";gap:30px;padding-block:36px 48px;max-width:640px} .hero-app-download{margin-top:0} .hero h1{font-size:clamp(2.35rem,8.5vw,3.2rem)} .hero-side{max-width:520px;width:100%} .sample-question{min-height:0} .feature-grid{grid-template-columns:repeat(2,1fr);gap:12px} .feature-card{min-height:178px;padding:16px;border-radius:24px} .feature-card h3,.feature-card h2{font-size:19px} .feature-chip{width:46px;height:46px;border-radius:14px} .facts-inner{gap:14px;flex-wrap:wrap;justify-content:center;padding-block:18px} .facts-inner>span{width:100%;text-align:center} .facts-inner>div{font-size:13px}.facts-inner strong{font-size:22px} .facts-inner a{display:none} .section{padding-block:52px} .license-grid{grid-template-columns:repeat(2,1fr)} .license-grid>.license-card:last-child:nth-child(3){grid-column:1 / -1} .theory-home{grid-template-columns:1fr;gap:30px} .theory-intro p{max-width:600px} .theory-count{display:none} .theory-section{padding-block:48px} .steps{grid-template-columns:1fr 1fr;gap:12px} .steps p{min-height:0} .app-banner{grid-template-columns:1fr;gap:28px;padding:32px} .faq-section{gap:30px;grid-template-columns:1fr} .footer-main{grid-template-columns:repeat(2,1fr);gap:28px} .footer-bottom{flex-direction:column;gap:10px} .theory-grid{grid-template-columns:1fr} .lesson-grid{grid-template-columns:repeat(2,1fr)} .reading-layout{grid-template-columns:1fr;padding-block:30px 56px} .reading-aside{display:grid;grid-template-columns:1fr 1fr;gap:16px} .aside-app{margin-top:0} .reading-aside nav{max-height:260px} .sign-grid{grid-template-columns:repeat(3,1fr)} .app-page-hero{grid-template-columns:1fr;gap:30px} .app-identity{padding:32px 20px} .store-card{padding:26px} .quiz-setup{grid-template-columns:1fr;gap:16px} .setup-main,.setup-aside{padding:24px} .session-layout{grid-template-columns:1fr} .question-map{padding:20px} .question-grid{grid-template-columns:repeat(10,1fr)} .question-grid button{aspect-ratio:auto;min-height:40px} .question-map .finish-quiz{max-width:330px} .question-content{min-height:190px} .question-content h3{font-size:19px} .junction-cross-promo{display:block} .junction-cross-promo>.text-link{margin-top:14px;white-space:normal} } @media(max-width:600px){.study-guide{padding:22px 18px;margin-top:28px}.guide-lead{font-size:16px}.guide-table-wrap th,.guide-table-wrap td{padding:12px 10px;font-size:13px}.guide-table-wrap th:first-child{width:35%}.guide-figures figure{flex-basis:120px;padding:14px 10px}.guide-section p{font-size:15px}.reaction-tool{padding:20px 16px}.reaction-tool h3{font-size:20px}.reaction-result{padding:18px 15px}.guide-next .button{width:100%;white-space:normal;line-height:1.5}.feedback-field :is(input,textarea,select){font-size:16px}} @media(max-width:520px){ .container{width:calc(100% - 32px)} h1{letter-spacing:-.03em} .hero{padding-top:28px;gap:26px} .hero .eyebrow{margin-bottom:18px} .hero h1{font-size:2.35rem} .hero-lead{font-size:15px} .hero-actions{gap:10px} .hero-actions .button{flex:1 1 auto;justify-content:center} .hero-benefits{font-size:12px;gap:8px 14px;margin-top:22px} .coach-card{grid-template-columns:56px 1fr;padding:14px;border-radius:22px} .coach-avatar,.coach-avatar img{width:56px;height:56px} .coach-bubble{font-size:14px;padding:12px 14px} .hero-practice{border-radius:22px} .practice-body{padding:18px 18px 14px} .sample-question{font-size:16px} .practice-footer{padding:14px 18px;flex-wrap:wrap} .feature-card{min-height:160px;padding:14px;border-radius:22px} .feature-card h3,.feature-card h2{font-size:17px} .feature-card p{font-size:12px} .feature-badge{font-size:11px;padding:5px 9px} .section-heading{align-items:flex-start;flex-direction:column;gap:14px;margin-bottom:22px} .license-grid{grid-template-columns:1fr} .license-grid>.license-card:last-child:nth-child(3){grid-column:auto} .steps{grid-template-columns:1fr} .app-banner{padding:28px 22px;border-radius:24px} .app-banner h2{font-size:1.9rem} .progress-preview{padding:22px} .footer-main{gap:24px 14px} .footer-main>div:first-child{grid-column:1/-1} .page-heading{margin-bottom:26px} .page-heading h1{font-size:2.1rem} .page-heading p{font-size:15px} .breadcrumbs{padding-top:18px} .breadcrumbs ol{font-size:12px} .category-tabs a{font-size:13px;padding:10px 14px} .search-results{grid-template-columns:1fr} .lesson-grid{grid-template-columns:1fr} .lesson-article h1{font-size:2rem} .article-image{padding:16px} .article-image img{height:215px} .prose{font-size:16px} .theory-question summary{font-size:14px;padding:16px} .theory-question p{font-size:14px;padding-inline:16px} .reading-aside{grid-template-columns:1fr} .lesson-pagination{flex-direction:column} .lesson-pagination a:last-child{text-align:left} .sign-grid{grid-template-columns:repeat(2,1fr);gap:10px} .sign-grid img{height:112px} .store-grid{grid-template-columns:1fr;gap:14px} table{font-size:13px}th,td{padding:14px} .quiz-page{padding-block:30px} .quiz-page .page-heading h1{font-size:2rem} .setup-main{padding:20px 16px} .setup-main h2{font-size:20px} .mode-option{padding:14px} .mode-icon{display:none} .session-top{flex-wrap:wrap;gap:10px} .session-top h2{font-size:20px} .timer{font-size:17px;padding:8px 12px} .question-card{padding:18px 16px;border-radius:22px} .question-content{padding-top:10px;gap:18px;min-height:170px} .question-content h3{font-size:18px;line-height:1.6} .question-content img{height:170px;width:100%;max-width:300px} .answer-options .answer-button{min-height:56px} .question-actions{flex-wrap:wrap;gap:10px} .question-actions .text-button{order:3;width:100%;justify-content:center} .question-actions .button{flex:1;font-size:13px;padding:11px 10px} .question-grid{grid-template-columns:repeat(6,1fr);gap:8px} .answer-feedback{font-size:14px;padding:14px} .result-heading{padding:26px 18px;border-radius:22px} .result-stats{display:grid;grid-template-columns:1fr 1fr;gap:10px} .result-stat{min-width:0;padding:14px 12px} .result-stat strong{font-size:24px} .result-actions{flex-direction:column} .review-heading{flex-direction:column;align-items:flex-start;gap:12px} .review-item{padding:18px} dialog{padding:24px} .quiz-topic-links{grid-template-columns:1fr} .topic-reading-links{grid-template-columns:1fr} } @media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}} @media print{.header,.footer,.tabbar,.reading-aside,.app-banner,.article-source a,.lesson-pagination,.related-quizzes>.button,.skip-link,.feedback-launch{display:none}.container{width:100%}.reading-layout{display:block;padding:0}.prose{font-size:12pt}body{background:white;padding:0}.article-image{break-inside:avoid}a{text-decoration:none!important}} @media(max-width:400px){ .header-cta{width:42px;height:42px;padding:0;min-height:42px;border-radius:50%;justify-content:center} .header-cta span{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap} .header-cta .icon{width:22px;height:22px} .footer-main{grid-template-columns:1fr;gap:22px} .facts-inner strong{font-size:20px} .rating{padding:10px 12px} .tabbar a{font-size:10px} }