@font-face{font-family:"Plus Jakarta Sans";src:url(../fonts/plus-jakarta-sans-normal-400-800.woff2) format("woff2");font-weight:400 800;font-style:normal;font-display:swap}
@font-face{font-family:"Plus Jakarta Sans";src:url(../fonts/plus-jakarta-sans-italic-400-800.woff2) format("woff2");font-weight:400 800;font-style:italic;font-display:swap}
@font-face{font-family:"JetBrains Mono";src:url(../fonts/jetbrains-mono-normal-400.woff2) format("woff2");font-weight:400 700;font-style:normal;font-display:swap}
:root{
--bg:#F5F7FB;--surface:#FFFFFF;--ink:#0B1430;--ink-2:#3E4A66;--muted:#5F6B85;--line:#E2E7F0;--line-2:#CBD3E1;
--accent:#2B50FF;--accent-hover:#1C3BE0;--accent-soft:#E8EDFF;--accent-ink:#1F3FD9;
--navy:#0A1433;--navy-2:#121F47;--navy-line:#25335E;--on-navy:#E7ECF8;--on-navy-2:#A9B4D0;--accent-on-navy:#93A9FF;
--cyan:#19B5C9;--success:#0E7A55;--success-soft:#E3F4EC;--error:#C42B3B;--error-soft:#FBE9EB;
--font:"Plus Jakarta Sans",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
--mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
--r-sm:10px;--r-md:16px;--r-pill:999px;
--s1:8px;--s2:12px;--s3:16px;--s4:24px;--s5:32px;--s6:48px;--s7:72px;--s8:104px;
--container:1200px;--gutter:clamp(16px,4vw,32px);
--shadow:0 1px 2px rgba(11,20,48,.04),0 8px 24px -8px rgba(11,20,48,.12);
--shadow-lg:0 24px 60px -20px rgba(11,20,48,.28);
--header-h:80px;
--code-bg:#0D1838;--code-ink:#DCE3F5;--code-line:#22305A;--code-muted:#8592B5;
--tk-kw:#8FB0FF;--tk-str:#7FD8B6;--tk-num:#FFC27A;--tk-com:#7A88AD;--tk-fn:#6FD3E3;--tk-bi:#F5A3C7;--tk-op:#B9C4E2;
}
.code-light{--code-bg:#F7F9FD;--code-ink:#16213F;--code-line:#E2E7F0;--code-muted:#5F6B85;--tk-kw:#1F3FD9;--tk-str:#0B7A50;--tk-num:#A2560A;--tk-com:#6B7695;--tk-fn:#0C7489;--tk-bi:#A3266B;--tk-op:#3E4A66}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--header-h) + 16px)}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:1.0625rem;line-height:1.65;font-weight:400;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
:where(h1,h2,h3,h4,h5,h6,p,ul,ol,figure,blockquote,dl,dd){margin:0}
:where(ul,ol)[class]{list-style:none;padding:0}
img,svg,video{max-width:100%;height:auto;display:block}
a{color:var(--accent-ink);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--accent-hover)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:4px}
.skip-link{position:absolute;left:16px;top:-60px;z-index:200;background:var(--ink);color:#fff;padding:10px 16px;border-radius:var(--r-sm);font-weight:600}
.skip-link:focus{top:12px;color:#fff}
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
h1,h2,h3,h4{font-weight:800;letter-spacing:-.025em;line-height:1.08;color:var(--ink);text-wrap:balance}
h1{font-size:clamp(2.3rem,1.5rem + 3vw,3.9rem)}
h2{font-size:clamp(1.75rem,1.3rem + 1.6vw,2.55rem)}
h3{font-size:1.25rem;font-weight:700;letter-spacing:-.015em;line-height:1.25}
h4{font-size:1.05rem;font-weight:700;letter-spacing:-.01em;line-height:1.3}
p{text-wrap:pretty}
.container{width:100%;max-width:calc(var(--container) + var(--gutter)*2);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(56px,8vw,var(--s8))}
.section--tight{padding-block:clamp(40px,5vw,64px)}
.section-head{max-width:720px;margin-bottom:clamp(28px,4vw,48px)}
.section-head p{color:var(--ink-2);font-size:1.125rem;margin-top:var(--s3)}
.section-head--row{max-width:none;display:flex;justify-content:space-between;align-items:flex-end;gap:var(--s4);flex-wrap:wrap}
.section-head--row>div{max-width:680px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:.78rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--accent-ink);margin-bottom:var(--s3)}
.lead{font-size:clamp(1.1rem,1rem + .4vw,1.3rem);color:var(--ink-2);line-height:1.6}
.muted{color:var(--muted)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:12px 22px;border-radius:var(--r-sm);border:1px solid transparent;font-weight:650;font-size:1rem;line-height:1.2;text-decoration:none;white-space:nowrap;transition:background-color .18s,border-color .18s,color .18s,transform .08s}
.btn:active{transform:translateY(1px)}
.btn svg{width:18px;height:18px;flex:none}
.btn--primary{background:var(--accent);color:#fff}
.btn--primary:hover{background:var(--accent-hover);color:#fff}
.btn--dark{background:var(--ink);color:#fff}
.btn--dark:hover{background:var(--navy-2);color:#fff}
.btn--ghost{background:var(--surface);border-color:var(--line-2);color:var(--ink)}
.btn--ghost:hover{border-color:var(--ink);color:var(--ink)}
.btn--on-navy{background:#fff;color:var(--navy)}
.btn--on-navy:hover{background:var(--accent-soft);color:var(--navy)}
.btn--outline-navy{border-color:var(--navy-line);color:var(--on-navy);background:transparent}
.btn--outline-navy:hover{border-color:var(--on-navy);color:#fff}
.btn--sm{min-height:40px;padding:8px 16px;font-size:.94rem}
.btn--block{width:100%}
.btn[disabled]{opacity:.7;cursor:progress}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:650;text-decoration:none;color:var(--accent-ink)}
.link-arrow svg{width:16px;height:16px;transition:transform .18s}
.link-arrow:hover svg{transform:translateX(3px)}
.tag{display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:var(--r-pill);background:var(--accent-soft);color:var(--accent-ink);font-size:.8rem;font-weight:650;line-height:1.4;text-decoration:none;white-space:nowrap}
.tag--plain{background:transparent;border:1px solid var(--line-2);color:var(--ink-2)}
.tag--level-beginner{background:#E3F4EC;color:#0B6646}
.tag--level-intermediate{background:#FFF1DE;color:#8A4A06}
.tag--level-advanced{background:#FCE8EE;color:#9B1F45}
a.tag:hover{filter:brightness(.97)}
.meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px;font-size:.88rem;color:var(--muted)}
.meta span{display:inline-flex;align-items:center;gap:6px}
.meta svg{width:15px;height:15px}
/* header */
.site-header{position:sticky;top:0;z-index:100;border-bottom:1px solid transparent;transition:border-color .2s}
.site-header::before{content:"";position:absolute;inset:0;z-index:-1;background:rgba(245,247,251,.88);backdrop-filter:saturate(1.4) blur(14px);-webkit-backdrop-filter:saturate(1.4) blur(14px);transition:background-color .2s}
.site-header.is-scrolled{border-bottom-color:var(--line)}
.site-header.is-scrolled::before{background:rgba(255,255,255,.92)}
body.nav-open .site-header::before{background:#fff}
.admin-bar .site-header{top:32px}
@media (max-width:782px){.admin-bar .site-header{top:46px}}
.header-inner{display:flex;align-items:center;gap:var(--s4);height:var(--header-h)}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:800;font-size:1.14rem;letter-spacing:-.02em;flex:none}
.brand:hover{color:var(--ink)}
.brand svg{width:34px;height:34px}
.brand b{color:var(--accent);font-weight:800}
.primary-nav{margin-left:auto}
.primary-nav>ul{display:flex;align-items:center;gap:2px}
.primary-nav li{position:relative}
.primary-nav a,.primary-nav .submenu-toggle{display:inline-flex;align-items:center;gap:4px;padding:10px 12px;border-radius:var(--r-sm);color:var(--ink);text-decoration:none;font-weight:600;font-size:.97rem;background:none;border:0}
.primary-nav a:hover,.primary-nav .submenu-toggle:hover{background:rgba(11,20,48,.05);color:var(--ink)}
.primary-nav .current-menu-item>a,.primary-nav .current-menu-ancestor>a,.primary-nav .current-menu-parent>a,.primary-nav .current_page_item>a{color:var(--accent-ink)}
.primary-nav .menu-item-has-children{display:flex;align-items:center}
.primary-nav .menu-item-has-children>a{padding-right:4px}
.submenu-toggle{padding:10px 8px!important}
.submenu-toggle svg{width:14px;height:14px;transition:transform .2s}
.submenu-toggle[aria-expanded=true] svg{transform:rotate(180deg)}
.primary-nav .sub-menu{position:absolute;top:calc(100% + 6px);left:0;min-width:250px;padding:8px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--shadow-lg);display:none;list-style:none;margin:0}
.primary-nav .sub-menu.is-open{display:block}
@media (hover:hover) and (min-width:1081px){.primary-nav .menu-item-has-children:hover>.sub-menu{display:block}.primary-nav .menu-item-has-children:hover>.sub-menu::before{content:"";position:absolute;inset:-10px 0 auto;height:10px}}
.primary-nav .sub-menu a{display:flex;width:100%;padding:10px 12px;font-weight:550}
.header-actions{display:flex;align-items:center;gap:8px;flex:none}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line-2);background:var(--surface);color:var(--ink)}
.icon-btn:hover{border-color:var(--ink)}
.icon-btn svg{width:19px;height:19px}
.search-trigger{gap:10px;width:auto;padding:0 12px;color:var(--muted);font-size:.9rem}
.search-trigger kbd{font-family:var(--mono);font-size:.72rem;border:1px solid var(--line-2);border-radius:6px;padding:1px 6px;color:var(--muted)}
.nav-toggle{display:none}
@media (max-width:1080px){
.nav-toggle{display:inline-flex}
.search-trigger .label,.search-trigger kbd{display:none}
.search-trigger{width:44px;padding:0}
.header-cta{display:none}
.primary-nav{position:fixed;inset:var(--header-h) 0 0 0;background:var(--surface);padding:16px var(--gutter) 40px;overflow-y:auto;transform:translateX(100%);visibility:hidden;transition:transform .25s ease,visibility .25s;margin:0;border-top:1px solid var(--line)}
.admin-bar .primary-nav{top:calc(var(--header-h) + 46px)}
.primary-nav.is-open{transform:none;visibility:visible}
.primary-nav>ul{flex-direction:column;align-items:stretch;gap:0}
.primary-nav>ul>li{border-bottom:1px solid var(--line)}
.primary-nav a{padding:16px 4px;font-size:1.1rem;width:100%}
.primary-nav .menu-item-has-children{flex-wrap:wrap}
.primary-nav .menu-item-has-children>a{width:auto;flex:1}
.submenu-toggle{width:48px;height:48px;justify-content:center}
.primary-nav .sub-menu{position:static;box-shadow:none;border:0;padding:0 0 12px 8px;width:100%;min-width:0}
.primary-nav .sub-menu a{padding:12px 4px;font-size:1rem;color:var(--ink-2)}
.mobile-cta{display:block!important;margin-top:24px}
body.nav-open{overflow:hidden}
}
.mobile-cta{display:none}
/* search modal */
.search-modal{position:fixed;inset:0;z-index:300;display:none;align-items:flex-start;justify-content:center;padding:10vh 16px 16px;background:rgba(10,20,51,.55);backdrop-filter:blur(4px)}
.search-modal.is-open{display:flex}
.search-panel{width:100%;max-width:680px;background:var(--surface);border-radius:var(--r-md);box-shadow:var(--shadow-lg);overflow:hidden;display:flex;flex-direction:column;max-height:78vh}
.search-field{display:flex;align-items:center;gap:12px;padding:6px 16px;border-bottom:1px solid var(--line)}
.search-field svg{width:20px;height:20px;color:var(--muted);flex:none}
.search-field input{flex:1;border:0;outline:0;background:transparent;font-size:1.12rem;padding:14px 0;min-width:0}
.search-field .esc{font-family:var(--mono);font-size:.72rem;border:1px solid var(--line-2);border-radius:6px;padding:2px 6px;color:var(--muted);background:none}
.search-results{overflow-y:auto;padding:8px}
.search-results a{display:block;padding:12px 14px;border-radius:var(--r-sm);text-decoration:none;color:var(--ink)}
.search-results a:hover,.search-results a.is-active{background:var(--accent-soft)}
.search-results .r-type{font-family:var(--mono);font-size:.7rem;text-transform:uppercase;letter-spacing:.07em;color:var(--accent-ink);font-weight:600}
.search-results .r-title{display:block;font-weight:700;margin:2px 0}
.search-results .r-ex{display:block;font-size:.9rem;color:var(--ink-2);line-height:1.5}
.search-hint{padding:18px 16px;color:var(--muted);font-size:.95rem}
.search-hint .chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.search-hint button.tag{border:0;cursor:pointer}
.search-foot{border-top:1px solid var(--line);padding:10px 16px;font-size:.85rem;color:var(--muted);display:flex;justify-content:space-between;gap:12px}
/* hero */
.hero{padding-block:clamp(40px,6vw,80px) clamp(56px,7vw,96px);position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(60% 70% at 85% 20%,rgba(43,80,255,.10),transparent 70%),radial-gradient(40% 50% at 0% 100%,rgba(25,181,201,.08),transparent 70%);pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(32px,5vw,72px);align-items:center}
.hero h1 em{font-style:italic;color:var(--accent);font-weight:800;padding-right:.05em}
.hero .lead{margin-top:var(--s4);max-width:540px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:var(--s5)}
.hero-note{margin-top:var(--s4);font-size:.92rem;color:var(--muted);display:flex;align-items:center;gap:8px}
.hero-note svg{width:16px;height:16px;color:var(--success)}
@media (max-width:960px){.hero-grid{grid-template-columns:1fr}.hero .lead{max-width:none}}
/* regression demo */
.demo{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--shadow-lg);padding:18px 18px 14px;position:relative}
.demo-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:8px}
.demo-title{font-weight:700;font-size:.98rem}
.demo-eq{font-family:var(--mono);font-size:.84rem;color:var(--ink-2);background:var(--bg);border:1px solid var(--line);border-radius:var(--r-sm);padding:4px 10px;white-space:nowrap}
.demo svg{width:100%;height:auto;cursor:crosshair;touch-action:manipulation;border-radius:8px}
.demo .axis{stroke:var(--line-2);stroke-width:1}
.demo .grid{stroke:var(--line);stroke-width:1}
.demo .pt{fill:var(--accent);stroke:#fff;stroke-width:2}
.demo .pt.new{fill:var(--cyan)}
.demo .fit{stroke:var(--ink);stroke-width:2.5;stroke-linecap:round}
.demo .resid{stroke:var(--accent);stroke-opacity:.35;stroke-dasharray:3 3}
.demo .ax-label{font-family:var(--mono);font-size:11px;fill:var(--muted)}
.demo-foot{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;font-size:.86rem;color:var(--muted);margin-top:8px}
.demo-stats{display:flex;gap:16px;font-family:var(--mono);font-size:.8rem;color:var(--ink-2)}
.demo-btn{background:none;border:1px solid var(--line-2);border-radius:var(--r-sm);padding:6px 12px;font-size:.85rem;font-weight:600;color:var(--ink)}
.demo-btn:hover{border-color:var(--ink)}
.demo-tip{margin-top:12px;font-size:.88rem;color:var(--ink-2);border-top:1px solid var(--line);padding-top:10px}
/* intro statement */
.statement{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(32px,6vw,96px);align-items:start}
.statement h2{font-size:clamp(1.6rem,1.2rem + 1.4vw,2.3rem)}
.statement-body p+p{margin-top:var(--s3)}
.statement-body p{color:var(--ink-2);font-size:1.1rem}
.fact-row{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:var(--s5);border-top:1px solid var(--line)}
.fact{padding:18px 18px 0 0}
.fact+.fact{padding-left:18px;border-left:1px solid var(--line)}
.fact strong{display:block;font-size:1.02rem}
.fact span{font-size:.92rem;color:var(--muted)}
@media (max-width:860px){.statement{grid-template-columns:1fr}.fact-row{grid-template-columns:1fr}.fact+.fact{border-left:0;padding-left:0;border-top:1px solid var(--line)}.fact{padding:14px 0}}
/* topic bento */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.topic-tile{position:relative;display:flex;flex-direction:column;border-radius:var(--r-md);border:1px solid var(--line);background:var(--surface);padding:24px;text-decoration:none;color:var(--ink);overflow:hidden;transition:box-shadow .2s,border-color .2s,transform .2s;min-height:260px}
.topic-tile:hover{box-shadow:var(--shadow);border-color:var(--line-2);color:var(--ink)}
.topic-tile:nth-child(1){grid-column:span 4}
.topic-tile:nth-child(2){grid-column:span 2;background:var(--navy);border-color:var(--navy);color:var(--on-navy)}
.topic-tile:nth-child(2) h3{color:#fff}
.topic-tile:nth-child(2) p{color:var(--on-navy-2)}
.topic-tile:nth-child(2) .tile-count{color:var(--accent-on-navy)}
.topic-tile:nth-child(3){grid-column:span 3;background:linear-gradient(160deg,#fff 30%,var(--accent-soft))}
.topic-tile:nth-child(4){grid-column:span 3}
.topic-tile:nth-child(n+5){grid-column:span 3}
.topic-tile .tile-art{margin:-4px -4px 16px;height:120px;display:flex;align-items:center}
.topic-tile .tile-art svg{height:100%;width:auto;max-width:100%}
.topic-tile:nth-child(1) .tile-art{height:150px}
.topic-tile h3{font-size:1.4rem;margin-bottom:8px}
.topic-tile p{color:var(--ink-2);font-size:.98rem;max-width:46ch}
.tile-foot{margin-top:auto;padding-top:18px;display:flex;justify-content:space-between;align-items:center;gap:12px}
.tile-count{font-family:var(--mono);font-size:.8rem;color:var(--accent-ink);font-weight:600}
.tile-go{width:36px;height:36px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;border:1px solid currentColor;opacity:.7;transition:transform .2s,opacity .2s}
.tile-go svg{width:16px;height:16px}
.topic-tile:hover .tile-go{opacity:1;transform:translateX(3px)}
@media (max-width:960px){.bento{grid-template-columns:1fr 1fr}.topic-tile:nth-child(n){grid-column:span 1}.topic-tile:nth-child(1){grid-column:span 2}}
@media (max-width:600px){.bento{grid-template-columns:1fr}.topic-tile:nth-child(n){grid-column:span 1}}
/* navy band */
.band{background:var(--navy);color:var(--on-navy);position:relative;overflow:hidden}
.band::after{content:"";position:absolute;inset:auto -10% -40% auto;width:60%;height:120%;background:radial-gradient(closest-side,rgba(43,80,255,.28),transparent);pointer-events:none}
.band h2,.band h3{color:#fff}
.band p{color:var(--on-navy-2)}
.band a:not(.btn){color:var(--accent-on-navy)}
.band .eyebrow{color:var(--accent-on-navy)}
.course-feature{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,80px);align-items:start}
.course-feature .lead{color:var(--on-navy-2);margin-top:var(--s3)}
.course-facts{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--navy-line);border:1px solid var(--navy-line);border-radius:var(--r-md);overflow:hidden;margin-top:var(--s5)}
.course-facts div{background:var(--navy-2);padding:16px 18px}
.course-facts dt{font-family:var(--mono);font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;color:var(--on-navy-2)}
.course-facts dd{margin:4px 0 0;font-weight:700;color:#fff}
.price-line{display:flex;align-items:baseline;gap:12px;margin-top:var(--s5);flex-wrap:wrap}
.price-line strong{font-size:2.2rem;font-weight:800;color:#fff;letter-spacing:-.02em}
.price-line s{color:var(--on-navy-2)}
.price-line small{color:var(--on-navy-2);font-size:.88rem;width:100%}
.band-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:var(--s4)}
.module-list{counter-reset:mod;border-top:1px solid var(--navy-line)}
.module-list li{counter-increment:mod;display:grid;grid-template-columns:44px 1fr;gap:8px;padding:14px 0;border-bottom:1px solid var(--navy-line);align-items:baseline}
.module-list li::before{content:counter(mod,decimal-leading-zero);font-family:var(--mono);font-size:.8rem;color:var(--accent-on-navy)}
.module-list strong{color:#fff;font-weight:650}
.module-list span{display:block;font-size:.9rem;color:var(--on-navy-2)}
@media (max-width:900px){.course-feature{grid-template-columns:1fr}}
/* editorial tutorials */
.editorial{display:grid;grid-template-columns:1.15fr 1fr;gap:clamp(24px,4vw,48px);align-items:start}
.lead-card{display:block;text-decoration:none;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;transition:box-shadow .2s}
.lead-card:hover{box-shadow:var(--shadow);color:var(--ink)}
.lead-card .card-art{aspect-ratio:16/8;background:var(--navy);display:flex;align-items:center;justify-content:center;padding:24px;overflow:hidden}
.lead-card .card-art svg{height:100%;width:auto}
.lead-card .card-body{padding:24px 26px 26px}
.lead-card h3{font-size:1.55rem;margin:10px 0}
.lead-card p{color:var(--ink-2)}
.lead-card .meta{margin-top:16px}
.row-list li{border-bottom:1px solid var(--line)}
.row-list li:first-child{border-top:1px solid var(--line)}
.row-item{display:grid;grid-template-columns:56px 1fr auto;gap:16px;align-items:center;padding:18px 4px;text-decoration:none;color:var(--ink)}
.row-item:hover{color:var(--ink)}
.row-item:hover h3{color:var(--accent-ink)}
.row-item .row-ico{width:56px;height:56px;border-radius:var(--r-sm);background:var(--accent-soft);display:flex;align-items:center;justify-content:center;color:var(--accent-ink)}
.row-item .row-ico svg{width:26px;height:26px}
.row-item h3{font-size:1.08rem;margin-bottom:4px;transition:color .15s}
.row-item .meta{font-size:.84rem}
.row-item .chev{width:18px;height:18px;color:var(--muted)}
@media (max-width:900px){.editorial{grid-template-columns:1fr}}
@media (max-width:520px){.row-item{grid-template-columns:44px 1fr}.row-item .row-ico{width:44px;height:44px}.row-item .chev{display:none}}
/* journey */
.journey{display:grid;grid-template-columns:repeat(3,1fr);gap:0;position:relative;border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface);overflow:hidden}
.stage{padding:28px 26px 26px;position:relative}
.stage+.stage{border-left:1px solid var(--line)}
.stage-bar{height:6px;border-radius:var(--r-pill);background:var(--line);margin-bottom:22px;overflow:hidden}
.stage-bar i{display:block;height:100%;background:var(--accent);border-radius:inherit}
.stage h3{font-size:1.3rem;display:flex;align-items:center;gap:10px}
.stage .stage-sub{color:var(--muted);font-size:.93rem;margin:6px 0 16px}
.stage ul li{display:flex;gap:10px;padding:7px 0;font-size:.97rem}
.stage ul li svg{width:18px;height:18px;flex:none;margin-top:3px;color:var(--accent)}
.stage ul a{color:var(--ink);text-decoration:none;font-weight:550}
.stage ul a:hover{color:var(--accent-ink);text-decoration:underline}
@media (max-width:900px){.journey{grid-template-columns:1fr}.stage+.stage{border-left:0;border-top:1px solid var(--line)}}
/* approach split */
.approach{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(32px,6vw,88px);align-items:start}
.approach-list{display:grid;grid-template-columns:1fr 1fr;gap:32px 36px}
.approach-item svg{width:28px;height:28px;color:var(--accent);margin-bottom:12px}
.approach-item h3{font-size:1.1rem;margin-bottom:6px}
.approach-item p{color:var(--ink-2);font-size:.97rem}
.sticky-col{position:sticky;top:calc(var(--header-h) + 32px)}
@media (max-width:900px){.approach{grid-template-columns:1fr}.sticky-col{position:static}}
@media (max-width:560px){.approach-list{grid-template-columns:1fr}}
/* founder */
.founder{display:grid;grid-template-columns:auto 1fr;gap:clamp(24px,5vw,64px);align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:clamp(24px,4vw,48px)}
.founder-photo{width:clamp(140px,18vw,220px);aspect-ratio:1;border-radius:var(--r-md);object-fit:cover;background:var(--accent-soft)}
.founder blockquote{font-size:clamp(1.15rem,1rem + .6vw,1.5rem);line-height:1.45;font-weight:600;letter-spacing:-.01em;color:var(--ink);padding:0;border:0}
.founder cite{display:block;margin-top:18px;font-style:normal;color:var(--muted);font-size:.95rem}
.founder cite strong{color:var(--ink)}
@media (max-width:640px){.founder{grid-template-columns:1fr}}
/* cards grid */
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}
.card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:22px;text-decoration:none;color:var(--ink);transition:box-shadow .2s,border-color .2s;position:relative}
.card:hover{box-shadow:var(--shadow);border-color:var(--line-2)}
.card h3{font-size:1.15rem;margin:12px 0 8px}
.card h3 a{color:var(--ink);text-decoration:none}
.card h3 a::after{content:"";position:absolute;inset:0;border-radius:inherit}
.card h3 a:hover{color:var(--accent-ink)}
.card p{color:var(--ink-2);font-size:.96rem}
.card .meta{margin-top:auto;padding-top:16px}
.card-top{display:flex;flex-wrap:wrap;gap:8px;position:relative;z-index:1}
.card--post .card-date{font-family:var(--mono);font-size:.78rem;color:var(--muted)}
/* cta */
.cta-panel{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(28px,5vw,64px);align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:clamp(28px,5vw,56px);position:relative;overflow:hidden}
.cta-panel::before{content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;background:radial-gradient(closest-side,rgba(43,80,255,.14),transparent)}
.cta-panel p{color:var(--ink-2);margin-top:12px}
@media (max-width:860px){.cta-panel{grid-template-columns:1fr}}
/* forms */
.form{display:grid;gap:16px;position:relative}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:600px){.form-row{grid-template-columns:1fr}}
.field label{display:block;font-weight:650;font-size:.92rem;margin-bottom:6px}
.field label .req{color:var(--error)}
.field input,.field textarea,.field select{width:100%;min-height:48px;padding:12px 14px;border:1px solid var(--line-2);border-radius:var(--r-sm);background:var(--surface);color:var(--ink);font-size:1rem;transition:border-color .15s,box-shadow .15s}
.field textarea{min-height:140px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#6F7A93}
.field input:focus,.field textarea:focus,.field select:focus{outline:0;border-color:var(--accent);box-shadow:0 0 0 3px rgba(43,80,255,.18)}
.field.has-error input,.field.has-error textarea,.field.has-error select{border-color:var(--error)}
.field-error{display:none;color:var(--error);font-size:.86rem;margin-top:6px;font-weight:550}
.field.has-error .field-error{display:block}
.field-hint{font-size:.85rem;color:var(--muted);margin-top:6px}
.hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;overflow:hidden}
.form-status{display:none;padding:14px 16px;border-radius:var(--r-sm);font-weight:550;font-size:.96rem}
.form-status.is-success{display:block;background:var(--success-soft);color:#0A5B40}
.form-status.is-error{display:block;background:var(--error-soft);color:#962130}
.form-consent{font-size:.84rem;color:var(--muted)}
.inline-form{display:flex;gap:10px;flex-wrap:wrap}
.inline-form .field{flex:1 1 220px}
.inline-form .field label{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
.spinner{width:18px;height:18px;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite;display:none}
.is-loading .spinner{display:inline-block}
@keyframes spin{to{transform:rotate(360deg)}}
/* page hero */
.page-hero{padding-block:clamp(36px,5vw,64px) clamp(32px,4vw,56px);border-bottom:1px solid var(--line);background:linear-gradient(180deg,var(--surface),var(--bg))}
.page-hero h1{font-size:clamp(2.1rem,1.5rem + 2.4vw,3.3rem);max-width:900px}
.page-hero .lead{margin-top:var(--s3);max-width:720px}
.page-hero--split .container{display:grid;grid-template-columns:1.2fr .8fr;gap:48px;align-items:center}
.page-hero--split .hero-art svg{width:100%;max-width:360px;margin-left:auto}
@media (max-width:860px){.page-hero--split .container{grid-template-columns:1fr}.page-hero--split .hero-art{display:none}}
.breadcrumbs{font-size:.87rem;color:var(--muted);margin-bottom:var(--s4)}
.breadcrumbs ol{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.breadcrumbs li{display:inline-flex;align-items:center;gap:6px}
.breadcrumbs li+li::before{content:"/";color:var(--line-2)}
.breadcrumbs a{color:var(--ink-2);text-decoration:none}
.breadcrumbs a:hover{color:var(--accent-ink);text-decoration:underline}
.breadcrumbs [aria-current]{color:var(--ink);font-weight:600}
/* hub / filters */
.hub-layout{display:grid;grid-template-columns:250px 1fr;gap:40px;align-items:start}
.filters{position:sticky;top:calc(var(--header-h) + 24px);display:grid;gap:24px}
.filter-group h2{font-size:.78rem;font-family:var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:10px;font-weight:600}
.filter-group ul{display:grid;gap:2px}
.filter-group a{display:flex;justify-content:space-between;align-items:center;padding:8px 10px;border-radius:var(--r-sm);text-decoration:none;color:var(--ink-2);font-weight:550;font-size:.96rem}
.filter-group a:hover{background:rgba(11,20,48,.05);color:var(--ink)}
.filter-group a[aria-current]{background:var(--accent-soft);color:var(--accent-ink)}
.filter-group a small{font-family:var(--mono);font-size:.75rem;color:var(--muted)}
.hub-search{display:flex;gap:8px;margin-bottom:24px}
.hub-search input{flex:1;min-height:48px;padding:12px 14px;border:1px solid var(--line-2);border-radius:var(--r-sm);background:var(--surface);min-width:0}
.hub-search input:focus{outline:0;border-color:var(--accent);box-shadow:0 0 0 3px rgba(43,80,255,.18)}
.result-bar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:20px;font-size:.93rem;color:var(--muted)}
.active-filters{display:flex;gap:8px;flex-wrap:wrap}
.filter-toggle{display:none}
@media (max-width:900px){.hub-layout{grid-template-columns:1fr}.filters{position:static;grid-template-columns:1fr 1fr;gap:16px}.filter-group ul{display:flex;flex-wrap:wrap;gap:6px}.filter-group a{border:1px solid var(--line-2);padding:6px 12px;border-radius:var(--r-pill);font-size:.88rem}.filter-group a small{margin-left:6px}}
@media (max-width:520px){.filters{grid-template-columns:1fr}}
.pagination{display:flex;justify-content:center;gap:6px;margin-top:40px;flex-wrap:wrap}
.pagination .page-numbers{min-width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;padding:0 12px;border-radius:var(--r-sm);border:1px solid var(--line-2);background:var(--surface);color:var(--ink);text-decoration:none;font-weight:600}
.pagination .page-numbers.current{background:var(--ink);color:#fff;border-color:var(--ink)}
.pagination a.page-numbers:hover{border-color:var(--ink)}
.empty-state{text-align:center;padding:56px 24px;border:1px dashed var(--line-2);border-radius:var(--r-md);background:var(--surface)}
.empty-state svg{width:56px;height:56px;margin:0 auto 16px;color:var(--accent)}
.empty-state h2{font-size:1.4rem}
.empty-state p{color:var(--ink-2);max-width:480px;margin:10px auto 20px}
.empty-state .chips{display:flex;justify-content:center;flex-wrap:wrap;gap:8px}
/* article */
.progress{position:fixed;top:0;left:0;height:3px;width:100%;transform-origin:0 50%;transform:scaleX(0);background:var(--accent);z-index:150}
.admin-bar .progress{top:32px}
.article-hero{padding-block:clamp(32px,4vw,56px) 32px}
.article-hero h1{font-size:clamp(2rem,1.4rem + 2.4vw,3.1rem);max-width:880px;margin-top:14px}
.article-hero .lead{max-width:760px;margin-top:16px}
.article-hero .meta{margin-top:22px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:56px;align-items:start;padding-bottom:var(--s7)}
.article-main{min-width:0;max-width:760px}
.toc{position:sticky;top:calc(var(--header-h) + 28px);font-size:.92rem;max-height:calc(100vh - var(--header-h) - 60px);overflow:auto}
.toc h2{font-size:.76rem;font-family:var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:10px;font-weight:600}
.toc ol{list-style:none;padding:0;margin:0;border-left:2px solid var(--line)}
.toc li a{display:block;padding:6px 0 6px 14px;margin-left:-2px;border-left:2px solid transparent;color:var(--ink-2);text-decoration:none;line-height:1.4}
.toc li.toc-h3 a{padding-left:28px;font-size:.88rem}
.toc li a:hover{color:var(--ink)}
.toc li a.is-active{border-left-color:var(--accent);color:var(--accent-ink);font-weight:650}
.toc-mobile{display:none;margin-bottom:28px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface)}
.toc-mobile summary{padding:14px 18px;font-weight:650;cursor:pointer}
.toc-mobile ol{padding:0 18px 14px 36px;margin:0}
.toc-mobile li{padding:4px 0}
.toc-mobile a{color:var(--ink-2)}
@media (max-width:1080px){.article-layout{grid-template-columns:1fr}.toc-aside{display:none}.toc-mobile{display:block}.article-main{max-width:none}}
.info-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:36px}
.info-box{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:20px 22px}
.info-box h2{font-size:1rem;display:flex;align-items:center;gap:8px;margin-bottom:10px;letter-spacing:-.01em}
.info-box h2 svg{width:18px;height:18px;color:var(--accent)}
.info-box ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.info-box li{position:relative;padding-left:22px;font-size:.96rem;color:var(--ink-2);line-height:1.5}
.info-box li::before{content:"";position:absolute;left:2px;top:.55em;width:8px;height:8px;border-radius:2px;background:var(--accent)}
.info-box--muted li::before{background:var(--line-2)}
@media (max-width:640px){.info-grid{grid-template-columns:1fr}}
.prose{font-size:1.1rem;line-height:1.75;color:#1D2745}
.prose>*+*{margin-top:1.15em}
.prose h2{font-size:clamp(1.5rem,1.25rem + .9vw,1.95rem);margin-top:2.2em;scroll-margin-top:calc(var(--header-h) + 20px)}
.prose h3{font-size:1.3rem;margin-top:1.8em;scroll-margin-top:calc(var(--header-h) + 20px)}
.prose h2+*,.prose h3+*{margin-top:.7em}
.prose ul,.prose ol{padding-left:1.4em}
.prose li+li{margin-top:.4em}
.prose li::marker{color:var(--accent)}
.prose strong{color:var(--ink);font-weight:700}
.prose blockquote{border-left:3px solid var(--accent);padding:4px 0 4px 20px;color:var(--ink-2);font-style:italic}
.prose :not(pre)>code{font-family:var(--mono);font-size:.86em;background:var(--accent-soft);color:#1A2C8F;padding:2px 6px;border-radius:6px;word-break:break-word}
.prose table{width:100%;border-collapse:collapse;font-size:.96rem;display:block;overflow-x:auto}
.prose th,.prose td{border-bottom:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
.prose th{font-weight:700;background:var(--surface);white-space:nowrap}
.prose figure svg{width:100%;height:auto}
.prose figcaption{font-size:.9rem;color:var(--muted);margin-top:8px;text-align:center}
.prose img{border-radius:var(--r-md)}
.callout{border-radius:var(--r-md);padding:18px 20px;background:var(--accent-soft);border:1px solid #CFD9FF;font-size:1rem;line-height:1.6}
.callout strong:first-child{display:block;margin-bottom:4px;color:var(--accent-ink)}
.callout--warn{background:#FFF6E8;border-color:#F6DDB3}
.callout--warn strong:first-child{color:#8A4A06}
/* code */
.code-block{border-radius:var(--r-md);background:var(--code-bg);border:1px solid var(--code-line);overflow:hidden;margin-top:1.3em}
.prose .code-block+p{margin-top:1.1em}
.code-bar{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:6px 8px 6px 16px;border-bottom:1px solid var(--code-line);font-family:var(--mono);font-size:.74rem;color:var(--code-muted);text-transform:uppercase;letter-spacing:.07em}
.code-tools{display:flex;gap:4px}
.code-tools button{display:inline-flex;align-items:center;gap:6px;background:transparent;border:1px solid transparent;color:var(--code-muted);font-family:var(--mono);font-size:.74rem;padding:6px 9px;border-radius:8px;text-transform:none;letter-spacing:0}
.code-tools button:hover{color:var(--code-ink);border-color:var(--code-line)}
.code-tools svg{width:14px;height:14px}
.code-block pre{margin:0;padding:16px 18px;overflow-x:auto;font-family:var(--mono);font-size:.88rem;line-height:1.65;color:var(--code-ink);tab-size:4;background:transparent}
.code-block pre code{font-family:inherit;background:none;padding:0;color:inherit;white-space:pre}
.code-block--output{background:var(--surface);border-color:var(--line)}
.code-block--output .code-bar{color:var(--muted);border-color:var(--line);background:var(--bg)}
.code-block--output pre{color:#2A3553}
.tk-kw{color:var(--tk-kw);font-weight:600}.tk-str{color:var(--tk-str)}.tk-num{color:var(--tk-num)}.tk-com{color:var(--tk-com);font-style:italic}.tk-fn{color:var(--tk-fn)}.tk-bi{color:var(--tk-bi)}.tk-op{color:var(--tk-op)}
.exercise{margin-top:48px;border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:var(--r-md);background:var(--surface);padding:24px 26px}
.exercise h2{font-size:1.3rem;display:flex;gap:10px;align-items:center;margin-bottom:10px}
.exercise h2 svg{width:22px;height:22px;color:var(--accent)}
.exercise .prose{font-size:1.02rem}
.exercise details{margin-top:16px;border-top:1px solid var(--line);padding-top:12px}
.exercise summary{cursor:pointer;font-weight:650;color:var(--accent-ink)}
.takeaways{margin-top:32px;background:var(--navy);color:var(--on-navy);border-radius:var(--r-md);padding:26px 28px}
.takeaways h2{color:#fff;font-size:1.3rem;margin-bottom:14px}
.takeaways ul{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.takeaways li{display:flex;gap:12px;color:var(--on-navy)}
.takeaways li svg{width:20px;height:20px;flex:none;color:var(--accent-on-navy);margin-top:2px}
.share{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:36px;padding-top:24px;border-top:1px solid var(--line)}
.share span{font-weight:650;margin-right:6px}
.share a,.share button{display:inline-flex;align-items:center;gap:6px;min-height:40px;padding:8px 14px;border:1px solid var(--line-2);border-radius:var(--r-sm);background:var(--surface);color:var(--ink);text-decoration:none;font-size:.9rem;font-weight:600}
.share a:hover,.share button:hover{border-color:var(--ink);color:var(--ink)}
.share svg{width:16px;height:16px}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:40px}
.pager a{display:block;padding:18px 20px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface);text-decoration:none;color:var(--ink)}
.pager a:hover{border-color:var(--line-2);box-shadow:var(--shadow);color:var(--ink)}
.pager small{display:block;font-size:.8rem;color:var(--muted);font-family:var(--mono);text-transform:uppercase;letter-spacing:.06em;margin-bottom:4px}
.pager strong{font-weight:700;line-height:1.35;display:block}
.pager .next{text-align:right;grid-column:2}
@media (max-width:600px){.pager{grid-template-columns:1fr}.pager .next{grid-column:1;text-align:left}}
.related{border-top:1px solid var(--line);background:var(--surface)}
/* course page */
.course-layout{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:48px;align-items:start}
.enrol-card{position:sticky;top:calc(var(--header-h) + 24px);background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:24px;box-shadow:var(--shadow)}
.enrol-card .price{font-size:2.1rem;font-weight:800;letter-spacing:-.02em}
.enrol-card .price s{font-size:1rem;color:var(--muted);font-weight:500;margin-left:8px}
.enrol-card dl{display:grid;gap:0;margin:18px 0;border-top:1px solid var(--line)}
.enrol-card dl div{display:flex;justify-content:space-between;gap:12px;padding:11px 0;border-bottom:1px solid var(--line);font-size:.94rem}
.enrol-card dt{color:var(--muted)}
.enrol-card dd{margin:0;font-weight:650;text-align:right}
.enrol-card .btn+.btn{margin-top:10px}
.enrol-card .note{font-size:.84rem;color:var(--muted);margin-top:14px}
.accordion{border-top:1px solid var(--line)}
.accordion details{border-bottom:1px solid var(--line)}
.accordion summary{list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:18px 4px;cursor:pointer;font-weight:700;font-size:1.06rem}
.accordion summary::-webkit-details-marker{display:none}
.accordion summary .num{font-family:var(--mono);font-size:.8rem;color:var(--accent-ink);margin-right:12px;font-weight:600}
.accordion summary svg{width:18px;height:18px;flex:none;transition:transform .2s;color:var(--muted)}
.accordion details[open] summary svg{transform:rotate(45deg)}
.accordion .acc-body{padding:0 4px 20px;color:var(--ink-2)}
.accordion .acc-body ul{padding-left:1.2em;display:grid;gap:4px}
.accordion .acc-body p+p{margin-top:10px}
.project-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;counter-reset:proj}
.project-grid li{counter-increment:proj;display:flex;gap:14px;align-items:flex-start;padding:16px 18px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);font-weight:600;line-height:1.4}
.project-grid li::before{content:counter(proj,decimal-leading-zero);font-family:var(--mono);font-size:.78rem;color:var(--accent-ink);padding-top:2px}
@media (max-width:980px){.course-layout{grid-template-columns:1fr}.enrol-card{position:static}}
@media (max-width:560px){.project-grid{grid-template-columns:1fr}}
.check-list{list-style:none;padding:0;display:grid;gap:10px}
.check-list li{display:flex;gap:12px;align-items:flex-start}
.check-list svg{width:20px;height:20px;flex:none;color:var(--success);margin-top:3px}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,56px)}
@media (max-width:860px){.two-col{grid-template-columns:1fr}}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:clamp(22px,3vw,32px)}
.stack>*+*{margin-top:var(--s4)}
.stack-sm>*+*{margin-top:var(--s3)}
/* resources */
.res-list{display:grid;gap:16px}
.res-item{display:grid;grid-template-columns:64px 1fr auto;gap:20px;align-items:center;padding:22px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md)}
.res-item .res-ico{width:64px;height:64px;border-radius:var(--r-md);background:var(--accent-soft);display:flex;align-items:center;justify-content:center;color:var(--accent-ink)}
.res-item .res-ico svg{width:30px;height:30px}
.res-item h3{font-size:1.15rem;margin:6px 0 4px}
.res-item p{color:var(--ink-2);font-size:.96rem}
@media (max-width:700px){.res-item{grid-template-columns:48px 1fr}.res-item .res-ico{width:48px;height:48px}.res-item .btn{grid-column:1/-1;width:100%}}
.doc-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:12px}
.doc-link{display:flex;flex-direction:column;gap:4px;padding:16px 18px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface);text-decoration:none;color:var(--ink)}
.doc-link:hover{border-color:var(--ink);color:var(--ink)}
.doc-link strong{display:flex;justify-content:space-between;align-items:center;gap:8px}
.doc-link strong svg{width:15px;height:15px;color:var(--muted)}
.doc-link span{font-size:.9rem;color:var(--ink-2)}
/* contact */
.contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(28px,5vw,64px);align-items:start}
.contact-method{display:flex;gap:14px;align-items:flex-start;padding:18px 0;border-bottom:1px solid var(--line)}
.contact-method svg{width:22px;height:22px;color:var(--accent);flex:none;margin-top:3px}
.contact-method strong{display:block}
.contact-method a{font-weight:600;word-break:break-all}
@media (max-width:860px){.contact-grid{grid-template-columns:1fr}}
/* footer */
.site-footer{background:var(--navy);color:var(--on-navy-2);padding-top:clamp(56px,7vw,88px);margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:40px}
.site-footer .brand{color:#fff}
.site-footer .brand b{color:var(--accent-on-navy)}
.footer-about p{margin-top:16px;max-width:36ch;font-size:.96rem}
.footer-about a{color:#fff}
.site-footer h2{font-size:.76rem;font-family:var(--mono);text-transform:uppercase;letter-spacing:.09em;color:var(--on-navy-2);margin-bottom:14px;font-weight:600}
.site-footer ul{display:grid;gap:8px}
.site-footer ul a{color:var(--on-navy);text-decoration:none;font-size:.96rem}
.site-footer ul a:hover{color:#fff;text-decoration:underline}
.footer-news{margin-top:22px}
.footer-news .field input{background:var(--navy-2);border-color:var(--navy-line);color:#fff}
.footer-news .field input::placeholder{color:#8E9AB9}
.footer-news .form-status.is-success{background:#0F3A2D;color:#BFF0DA}
.footer-news .form-status.is-error{background:#4A1520;color:#FFC9D1}
.footer-news .field-error{color:#FF9AA8}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:56px;padding-block:24px;border-top:1px solid var(--navy-line);font-size:.88rem}
.footer-bottom ul{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom a{color:var(--on-navy-2)}
@media (max-width:900px){.footer-grid{grid-template-columns:1fr 1fr}.footer-about{grid-column:1/-1}}
@media (max-width:480px){.footer-grid{grid-template-columns:1fr}}
.to-top{position:fixed;right:20px;bottom:20px;width:46px;height:46px;border-radius:50%;background:var(--ink);color:#fff;border:0;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .2s,transform .2s,visibility .2s;z-index:90;box-shadow:var(--shadow)}
.to-top.is-visible{opacity:1;visibility:visible;transform:none}
.to-top svg{width:20px;height:20px}
/* reveal */
.js .reveal{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
.js .reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.js .reveal{opacity:1;transform:none;transition:none}*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}}
.notice{padding:12px 16px;border-radius:var(--r-sm);background:#FFF6E8;color:#6E3B05;font-size:.92rem;border:1px solid #F6DDB3}
.legal .prose{font-size:1.02rem}
.legal .prose h2{font-size:1.35rem}
@media print{.site-header,.site-footer,.toc-aside,.share,.pager,.related,.to-top,.progress,.code-tools{display:none!important}body{background:#fff}.code-block{border:1px solid #ccc}}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer .brand svg rect:first-child{fill:#1A2A5C}
.module-list span{display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.toc-aside{align-self:stretch}
.enrol-card,.sticky-col{align-self:start}
.filter-group ul{list-style:none;padding:0;margin:0}
.primary-nav .mobile-cta .btn{background:var(--accent);color:#fff;justify-content:center;padding:14px 22px;font-size:1rem}
.primary-nav .mobile-cta .btn:hover{background:var(--accent-hover);color:#fff}
@media (max-width:980px){.course-layout>.enrol-card{order:-1}}
.brand--logo img{display:block;height:auto;max-width:100%}
.site-header .brand--logo img{width:208px}
.site-footer .brand--logo img{width:224px}
@media (max-width:1240px){.site-header .brand--logo img{width:188px}}
@media (max-width:1080px){.site-header .brand--logo img{width:192px}}
@media (max-width:420px){.site-header .brand--logo img{width:164px}}
.site-footer .brand--logo{display:inline-block}
.site-footer .brand--logo img{width:224px}
@media (max-width:600px){:root{--header-h:72px}}
@media (min-width:1081px) and (max-width:1240px){.search-trigger .label,.search-trigger kbd{display:none}.search-trigger{width:44px;padding:0}.header-cta{display:none}.header-inner{gap:16px}}
@media (max-width:1080px){.header-actions{margin-left:auto}}
@media (max-width:1080px){.site-header .brand--logo img{width:236px}.header-inner{gap:12px}}
@media (max-width:600px){.site-header .brand--logo img{width:204px}}
@media (max-width:359px){.site-header .brand--logo img{width:184px}}
@media (max-width:600px){main p,main li,.site-footer .footer-about p{text-align:justify;-webkit-hyphens:auto;hyphens:auto}main .empty-state p{text-align:center}main .meta,main .card-top,main .breadcrumbs li,main .demo-foot,main .row-item,main .tag{text-align:left;-webkit-hyphens:manual;hyphens:manual}}
@media (max-width:600px){.footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;padding-bottom:84px}.footer-bottom ul{flex-wrap:nowrap;gap:12px;width:100%;white-space:nowrap}.footer-bottom ul a{font-size:.75rem}.footer-bottom p{font-size:.8rem}}
@media (max-width:359px){.footer-bottom ul{gap:8px}.footer-bottom ul a{font-size:.6875rem}}
@media (max-width:600px){.footer-bottom{align-items:center;text-align:center}.footer-bottom ul{justify-content:center}}