:root{--bg:#faf9f5;--surface:#fff;--surface-2:#f2f0e9;--text:#17181d;--muted:#646978;--border:#deddd7;--blue:#285adf;--blue-soft:#eaf0ff;--lilac:#8055d8;--lilac-soft:#f1eaff;--teal:#087f82;--teal-soft:#e4f5f3;--orange:#b86424;--orange-soft:#fdf0e4;--danger:#bd3943;--success:#1d8057;--shadow:0 1px 2px rgba(22,27,39,.04),0 12px 34px rgba(22,27,39,.07);--shadow-2:0 8px 26px rgba(22,27,39,.08),0 34px 70px rgba(22,27,39,.12);--radius:18px;--max:1180px;--header:72px;color-scheme:light}
:root.dark{--bg:#0c0f15;--surface:#12161f;--surface-2:#181d27;--text:#f5f5f1;--muted:#a5aab8;--border:#2d3340;--blue:#79a5ff;--blue-soft:#17233d;--lilac:#b796f0;--lilac-soft:#2b2142;--teal:#69d3cf;--teal-soft:#153738;--orange:#efaa70;--orange-soft:#39271b;--danger:#ff919a;--success:#76d6aa;--shadow:0 1px 2px rgba(0,0,0,.2),0 12px 34px rgba(0,0,0,.25);--shadow-2:0 8px 24px rgba(0,0,0,.3),0 34px 70px rgba(0,0,0,.35);color-scheme:dark}
*{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,Manrope,system-ui,-apple-system,"Segoe UI",sans-serif;line-height:1.55;-webkit-font-smoothing:antialiased;overflow-x:hidden}button,input,textarea,select{font:inherit;color:inherit}button,a{touch-action:manipulation}button{cursor:pointer}a{color:inherit;text-decoration:none}img,svg{display:block;max-width:100%}h1,h2,h3,h4{margin:0;line-height:1.12;letter-spacing:-.035em;text-wrap:balance}p{margin:0}ul,ol{margin:0;padding:0}::selection{background:var(--blue-soft)}:focus-visible{outline:3px solid var(--blue);outline-offset:3px;border-radius:8px}.skip-link{position:fixed;left:12px;top:-100px;z-index:999;background:var(--blue);color:#fff;padding:10px 14px;border-radius:10px;font-weight:800}.skip-link:focus{top:12px}.hidden{display:none!important}.sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}.boot{min-height:100dvh;display:grid;place-items:center;align-content:center;gap:15px;color:var(--muted)}.spinner{width:32px;height:32px;border:3px solid var(--border);border-top-color:var(--blue);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}
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h2{font-size:25px}.lock-card p{color:var(--muted);max-width:650px;margin:12px auto 20px}.lesson-nav{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:36px}.lesson-nav a{padding:16px}.lesson-nav a:last-child{text-align:right}.mobile-lesson-bar{display:none}.drawer-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:130}.lesson-drawer{position:fixed;inset:0 auto 0 0;width:min(88vw,380px);z-index:140;background:var(--bg);padding:24px;overflow:auto;box-shadow:var(--shadow-2)}
.comparator-tools{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:25px}.tool-card{padding:22px}.tool-card h2{font-size:22px}.tool-card small{color:var(--muted)}.tool-card p{font-size:14px;color:var(--muted);margin-top:11px}.matrix{overflow:auto;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface)}.matrix table{width:100%;border-collapse:collapse;min-width:800px}.matrix th,.matrix td{padding:15px;border-bottom:1px solid var(--border);vertical-align:top;text-align:left;font-size:13px}.matrix th{background:var(--surface-2);font-size:12px;text-transform:uppercase;letter-spacing:.05em}.matrix tr:last-child td{border-bottom:0}.mobile-matrix{display:none}.advisor{margin-top:38px;padding:26px}.advisor-progress{font-size:12px;color:var(--muted);font-weight:800;margin-bottom:9px}.advisor h2{font-size:25px}.advisor-options{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:19px}.advisor-option{min-height:62px;border:1px solid var(--border);background:var(--surface);border-radius:13px;padding:12px;text-align:left;font-weight:700}.advisor-option:hover{border-color:var(--blue);background:var(--blue-soft)}.advisor-result{padding:23px;background:var(--blue-soft);border-radius:15px;margin-top:18px}.depends-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:22px}.depends-grid article{padding:19px}.depends-grid h3{font-size:16px}.depends-grid p{font-size:13px;color:var(--muted);margin-top:7px}
.prompt-layout{display:grid;grid-template-columns:290px minmax(0,1fr);gap:24px}.template-list{display:grid;gap:8px;position:sticky;top:94px}.template-btn{border:1px solid var(--border);background:var(--surface);border-radius:12px;padding:12px;text-align:left}.template-btn.active{border-color:var(--blue);background:var(--blue-soft)}.template-btn strong{display:block}.template-btn span{display:block;color:var(--muted);font-size:12px;margin-top:3px}.prompt-work{min-width:0}.prompt-steps{display:flex;gap:6px;overflow:auto;margin-bottom:17px}.prompt-step{min-width:38px;height:38px;border:1px solid var(--border);background:var(--surface);border-radius:50%;font-weight:800}.prompt-step.active{background:var(--blue);color:#fff;border-color:var(--blue)}.prompt-output{padding:21px;background:var(--surface-2);margin-top:20px}.prompt-output pre{white-space:pre-wrap;word-break:break-word;font:14px/1.7 ui-monospace,SFMono-Regular,Menlo,monospace}.score-row{display:flex;align-items:center;gap:15px;margin-bottom:13px}.score-ring{width:58px;height:58px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(var(--blue) calc(var(--score)*1%),var(--border) 0);position:relative;font-weight:900}.score-ring:before{content:"";position:absolute;inset:6px;border-radius:50%;background:var(--surface-2)}.score-ring span{position:relative}.missing{font-size:13px;color:var(--muted)}
.search-box{display:flex;gap:9px;max-width:760px}.search-box .input{flex:1}.result-group{margin-top:33px}.result-group h2{font-size:22px;margin-bottom:13px}.result-list{display:grid;gap:9px}.result{padding:17px}.result h3{font-size:16px;letter-spacing:0}.result p{color:var(--muted);font-size:13px;margin-top:5px}.result mark{background:var(--blue-soft);color:inherit;border-radius:3px;padding:0 2px}.glossary-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.term{padding:20px}.term-head{display:flex;align-items:center;justify-content:space-between;gap:15px}.term h2{font-size:20px}.term p{color:var(--muted);font-size:14px;margin-top:8px}.term .example{color:var(--text);background:var(--surface-2);padding:10px;border-radius:10px;margin-top:11px}
.auth-wrap{max-width:500px;margin:0 auto}.auth-card{padding:28px}.auth-card h1{font-size:36px}.auth-card>p{color:var(--muted);margin:11px 0 24px}.auth-separator{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:12px;margin:18px 0}.auth-separator:before,.auth-separator:after{content:"";height:1px;background:var(--border);flex:1}.auth-links{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-top:16px;font-size:13px}.protected-loading{min-height:400px;display:grid;place-items:center}.dashboard-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:26px}.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.stat{padding:19px}.stat strong{display:block;font-size:29px}.stat span{font-size:13px;color:var(--muted)}.dashboard-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:20px;margin-top:20px}.dashboard-card{padding:22px}.dashboard-card h2{font-size:21px}.recent-list{display:grid;gap:9px;margin-top:14px}.recent-item{border:1px solid var(--border);border-radius:12px;padding:13px}.recent-item strong{display:block}.recent-item span,.recent-item p{display:block;color:var(--muted);font-size:12px;margin-top:3px}.profile-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.personal-list{display:grid;gap:12px}.personal-card{padding:18px}.personal-card h2{font-size:18px}.personal-card p{font-size:14px;color:var(--muted);margin-top:7px}.personal-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}.legal{max-width:820px}.legal h1{font-size:clamp(38px,5vw,58px)}.legal h2{font-size:25px;margin-top:34px}.legal p,.legal li{color:var(--muted);margin-top:11px}.legal ul{padding-left:20px}.faq{display:grid;gap:10px;max-width:850px}.faq details{padding:18px}.faq summary{font-weight:800;cursor:pointer}.faq p{color:var(--muted);margin-top:11px}.not-found{max-width:760px;padding:70px 0}.not-found h1{font-size:clamp(48px,7vw,84px)}.not-found p{font-size:18px;color:var(--muted);margin:17px 0 26px}.not-found-actions{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
@media(max-width:1100px){.desktop-nav{display:none}.menu-toggle{display:grid}.hero{gap:38px}.benefit-grid{grid-template-columns:repeat(2,1fr)}.course-grid{grid-template-columns:repeat(2,1fr)}.lesson-layout{grid-template-columns:230px minmax(0,1fr)}.page-toc{display:none}.depends-grid{grid-template-columns:repeat(2,1fr)}.stat-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:780px){:root{--header:68px}.header-inner,.page{width:min(100% - 28px,var(--max))}.logo small{display:none}.hero{grid-template-columns:1fr;padding:24px 0 52px}.hero h1{font-size:clamp(39px,11vw,55px)}.hero-copy>p{font-size:16px}.hero-actions{display:grid}.hero-actions .btn{width:100%}.section{padding:42px 0}.section-head{align-items:start;flex-direction:column}.benefit-grid,.course-grid,.quick-grid,.split,.course-hero,.comparator-tools,.dashboard-grid,.profile-grid,.prompt-layout{grid-template-columns:1fr}.course-grid{gap:15px}.course-art{height:160px}.course-hero-art{min-height:210px}.lesson-layout{display:block}.lesson-side{display:none}.lesson-cover{height:190px}.lesson-title{font-size:36px}.compare-grid{grid-template-columns:1fr}.lesson-nav{grid-template-columns:1fr}.mobile-lesson-bar{display:grid;grid-template-columns:1.1fr 1fr 1fr;gap:7px;position:fixed;z-index:110;left:0;right:0;bottom:0;padding:8px 10px calc(8px + env(safe-area-inset-bottom));background:color-mix(in srgb,var(--bg) 94%,transparent);border-top:1px solid var(--border);backdrop-filter:blur(16px)}.mobile-lesson-bar .btn{font-size:12px;padding:8px}.lesson-page{padding-bottom:110px}.matrix{display:none}.mobile-matrix{display:grid;gap:12px}.matrix-card{padding:18px}.matrix-card h3{font-size:17px}.matrix-card dl{display:grid;gap:13px;margin-top:13px}.matrix-card dt{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-weight:800}.matrix-card dd{margin:4px 0 0;font-size:13px}.advisor-options{grid-template-columns:1fr}.depends-grid{grid-template-columns:1fr}.template-list{position:static;grid-template-columns:repeat(2,1fr)}.glossary-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-brand{grid-column:1/-1}.dashboard-head{align-items:start;flex-direction:column}.not-found-actions{grid-template-columns:1fr}.cta{padding:31px 20px}.search-box{display:grid}.search-box .btn{width:100%}}
@media(max-width:480px){.header-inner,.page{width:min(100% - 22px,var(--max))}.logo-text{font-size:25px}.header-actions>.auth-desktop{display:none}.icon-btn{width:42px}.benefit-grid{grid-template-columns:1fr}.stat-grid{grid-template-columns:1fr 1fr}.template-list{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.lesson-row{grid-template-columns:auto minmax(0,1fr)}.lesson-row>span:last-child{grid-column:2}.page{padding-top:38px}.auth-card{padding:22px}.course-hero h1{font-size:39px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}}