:root{--ink:#122b39;--muted:#53636d;--paper:#f7f8f9;--white:#fff;--line:#dce3e7;--orange:#ffb45e;--accent:#954500;--blue:#145c80;--green:#226448;font-size:18px;color-scheme:light}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:'Segoe UI',Arial,sans-serif;line-height:1.65}button,input,textarea,select{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}a{color:var(--blue);text-underline-offset:4px}button,.button{border:1px solid var(--line);background:white;color:var(--ink);border-radius:10px;padding:12px 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48px;font-size:.78rem;color:#465967}.mode-note:empty{display:none}main{padding:42px 48px 64px;max-width:1360px;margin:auto;min-height:70vh}.hero{display:grid;grid-template-columns:1.5fr 1fr;gap:32px;align-items:center;margin-bottom:34px}.hero p{max-width:670px}.hero-aside{padding:24px 28px;background:white;border:1px solid var(--line);border-radius:16px;border-top:5px solid var(--orange)}.big-number{font-family:Georgia,serif;font-size:3rem;line-height:1.2}.progress-track{height:8px;background:#e1e8ec;border-radius:6px;margin:16px 0;overflow:hidden}.progress-track>span{display:block;background:var(--blue);height:100%}.section-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:35px 0 18px}.section-head h2{margin:0}.section-head a{font-size:.9rem}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.two{grid-template-columns:repeat(2,minmax(0,1fr))}.card{background:white;border:1px solid var(--line);border-radius:14px;padding:24px;min-width:0}.card p:last-child{margin-bottom:0}.card a.button{margin-top:12px}.phase-label{font-size:.75rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}.number{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:50%;background:#edf2f5;color:var(--blue);font-weight:700;margin-bottom:18px}.done .number{background:#e2f1e8;color:var(--green)}.card h3 a{color:var(--ink);text-decoration:none}.card h3 a:hover{text-decoration:underline}.meta{font-size:.8rem;color:var(--muted)}.pill{display:inline-block;background:#e7f0f5;color:var(--blue);border-radius:30px;padding:4px 12px;font-size:.76rem;font-weight:700}.pill.success{background:#e2f1e8;color:var(--green)}.callout{padding:22px 25px;background:#fff1df;border-left:4px solid var(--orange);border-radius:0 12px 12px 0;margin:24px 0}.callout p:last-child{margin-bottom:0}.callout.blue{background:#eaf2f8;border-color:#2c7199}.callout.green{background:#eaf5ed;border-color:var(--green)}.lesson{max-width:820px;margin:auto}.lesson .intro{font-size:1.13rem;color:#455864}.lesson-section{margin:36px 0}.lesson-section p{line-height:1.85}.lesson-section h2{font-size:1.5rem}.lesson ul,.lesson ol{padding-left:26px}.lesson li{margin-bottom:12px}.lesson-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:30px}.lesson-toolbar a{font-size:.85rem}.field{display:grid;gap:8px;margin:20px 0}label{font-weight:650}label .hint{display:block;font-weight:400;color:var(--muted);font-size:.85rem}input:not([type=checkbox]):not([type=radio]),textarea,select{width:100%;border:1px solid #aebfc9;background:white;color:var(--ink);border-radius:8px;padding:12px 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22px}.prompt{white-space:pre-wrap;font-family:inherit;background:#f3f6f8;border:1px solid var(--line);padding:20px;border-radius:8px;font-size:.9rem;max-height:420px;overflow:auto}.tabs{display:flex;gap:10px;flex-wrap:wrap;margin:24px 0}.tabs button[aria-pressed=true]{background:var(--ink);color:white}.step-list{counter-reset:steps;list-style:none;padding:0}.step-list>li{counter-increment:steps;border-left:2px solid var(--line);margin-left:18px;padding:0 0 26px 30px;position:relative}.step-list>li:before{content:counter(steps);position:absolute;left:-18px;background:var(--ink);color:white;border-radius:50%;width:34px;height:34px;display:grid;place-items:center;font-size:.85rem}.output{white-space:pre-wrap;overflow-wrap:anywhere}.table-scroll{overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:.9rem}th,td{text-align:left;padding:14px;border-bottom:1px solid var(--line);vertical-align:top}th{background:#edf2f6}footer{padding:22px 48px;color:var(--muted);font-size:.78rem;border-top:1px solid var(--line)}footer span{margin:0 8px}#toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);background:var(--ink);color:white;padding:12px 22px;border-radius:10px;z-index:30;box-shadow:0 4px 18px #0003;max-width:90vw}#toast:empty{display:none}.mobile-head{display:none}.skip{position:fixed;top:-70px;left:10px;background:white;z-index:100;padding:12px}.skip:focus{top:10px}.divider{border:0;border-top:1px solid var(--line);margin:35px 0}.print-only{display:none}.source-list a{overflow-wrap:anywhere}.lesson-bottom{margin-top:36px;border-top:1px solid var(--line);padding-top:24px}.empty{padding:20px;background:#edf2f6;border-radius:10px}.launch-day{padding:20px 24px}.launch-day .check-row{padding:0}.score-row{display:grid;grid-template-columns:1fr 100px;gap:20px;align-items:center}.auth{max-width:520px;margin:30px auto}.download-grid{display:flex;flex-wrap:wrap;gap:12px}.inline-link{padding:4px;background:none;border:0;color:var(--blue);text-decoration:underline;font-weight:400}
main:focus{outline:none}.sales-header{display:flex;justify-content:space-between;align-items:center;padding:24px 6%;background:var(--ink);color:white;gap:20px}.sales-header a{color:white;font-size:.9rem}.sales-brand{text-decoration:none}.sales-header .sales-brand{font-size:1rem}.sales-page main{max-width:1200px}.sales-hero{max-width:890px;padding:40px 0}.sales-hero h1{font-size:clamp(2.4rem,5vw,4.4rem)}.sales-lead{font-size:1.3rem}.sales-section{margin:55px 0}.sales-section ol,.sales-section ul{padding-left:22px}.sales-section li{margin:10px 0}.sales-offer{background:#eaf2f8;padding:38px;border-radius:16px;max-width:850px}.sales-page footer{text-align:center}.sales-hero .button{margin:12px 0 16px}
@media(min-width:1600px){main{padding-top:60px}.hero{gap:65px}.sidebar{width:285px}.page{margin-left:285px}}
@media(max-width:1100px){.sidebar{width:225px;padding:26px 18px}.page{margin-left:225px}main{padding:32px 28px}.topbar,.mode-note,footer{padding-left:28px;padding-right:28px}.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.hero{grid-template-columns:1fr}.hero-aside{max-width:none}.big-number{font-size:2.4rem}}
@media(max-width:760px){.mobile-head{display:flex;background:var(--ink);color:white;align-items:center;justify-content:space-between;padding:13px 18px;position:sticky;top:0;z-index:20}.mobile-head>a{color:white;text-decoration:none}.mobile-head button{min-height:42px;padding:4px 14px;background:#2a4656;color:white;border-color:#466172}.sidebar{display:none;top:68px;width:100%;bottom:0;padding:24px}.sidebar.open{display:flex}.sidebar .brand,.sidebar .byline{display:none}.sidebar nav a{font-size:1rem;padding:14px}.page{margin:0}.topbar{height:67px;padding:0 20px}.topbar>span{font-size:.78rem}.text-size span{display:none}.mode-note{padding:9px 20px}main{padding:28px 20px 42px}.grid,.two{grid-template-columns:1fr}.hero{gap:12px;margin-bottom:24px}h1{font-size:2.25rem}.hero-aside{padding:20px}.card{padding:22px}.section-head{align-items:flex-start}.section-head h2{font-size:1.4rem}.lesson-toolbar{align-items:flex-start}.row>button,.row>.button{max-width:100%}.lesson-section p{line-height:1.8}.score-row{grid-template-columns:1fr 85px}footer{padding:22px 20px}.launch-day{padding:18px}.prompt{padding:14px}.brand-mark{min-width:48px}input,textarea,select{font-size:1rem}}
@media print{.sidebar,.topbar,.mobile-head,.mode-note,footer,.no-print,#toast,button,.lesson-toolbar,.tabs{display:none!important}.page{margin:0}main{padding:0;max-width:none}body{font-size:12pt;background:white;color:#000}.card,details,.callout{break-inside:avoid}.grid{display:block}.card{margin-bottom:18px}.print-only{display:block}h1{font-size:26pt}h2{font-size:20pt}textarea{min-height:150px}.prompt{max-height:none;overflow:visible}.lesson{max-width:none}details>div{display:block!important}a{color:#000}}
.hero{grid-template-columns:minmax(0,1fr) minmax(360px,.95fr);margin-bottom:24px}.hero-visual{margin:0}.hero-visual img{display:block;width:100%;height:auto;border-radius:18px;box-shadow:0 18px 42px #122b3926}.home-progress{display:grid;grid-template-columns:1fr 260px;gap:24px;align-items:center;margin-bottom:24px;border-top:5px solid var(--orange)}.home-progress p:last-child{margin-bottom:0}@media(max-width:1100px){.hero{grid-template-columns:1fr}.hero-visual{max-width:860px}.home-progress{grid-template-columns:1fr}}@media(max-width:760px){.hero-visual img{border-radius:14px}.home-progress{gap:12px}.home-progress .big-number{font-size:2.35rem}}