:root{--rr-ink:#1d1d1f;--rr-muted:#6e6e73;--rr-canvas:#f5f5f7;--rr-blue:#0071e3;--rr-line:#d2d2d7;--rr-radius:28px;--rr-shadow:0 18px 50px rgba(0,0,0,.08);--rr-shell:1240px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;color:var(--rr-ink);font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}a{transition:opacity .2s ease,color .2s ease}a:hover{opacity:.76}.rr-shell{max-width:var(--rr-shell);margin:0 auto;padding:0 24px}.rr-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.86);backdrop-filter:saturate(180%) blur(22px);border-bottom:1px solid rgba(0,0,0,.06)}.rr-nav{height:66px;display:flex;align-items:center;justify-content:space-between;gap:28px}.rr-brand{display:flex;align-items:center;color:var(--rr-ink);text-decoration:none}.rr-logo{width:160px;height:48px}.rr-navlinks{display:flex;align-items:center;gap:28px;font-size:.92rem}.rr-navlinks a{color:var(--rr-ink);text-decoration:none}.rr-mobile-toggle{display:none;border:0;background:transparent;font-size:1.5rem}.rr-hero{min-height:78vh;display:grid;place-items:center;text-align:center;padding:110px 24px 90px;background:radial-gradient(circle at 50% 0,#eef6ff 0,rgba(238,246,255,.55) 26%,#fff 62%)}.rr-kicker{font-size:1.05rem;font-weight:650;color:var(--rr-blue);margin-bottom:16px}.rr-hero h1{font-size:clamp(3.6rem,10vw,8.2rem);line-height:.93;letter-spacing:-.065em;margin:0;max-width:1100px}.rr-hero p{max-width:790px;margin:28px auto 0;color:var(--rr-muted);font-size:clamp(1.12rem,2vw,1.5rem);line-height:1.45}.rr-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;margin-top:34px}.rr-button{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:13px 22px;font-weight:600;text-decoration:none}.rr-button.primary{background:var(--rr-blue);color:#fff}.rr-button.secondary{border:1px solid var(--rr-blue);color:var(--rr-blue)}.rr-section{padding:96px 0}.rr-section.alt{background:var(--rr-canvas)}.rr-section-title{text-align:center;margin-bottom:44px}.rr-section-title h2{font-size:clamp(2.3rem,5vw,4.8rem);margin:0;letter-spacing:-.05em}.rr-section-title p{max-width:760px;margin:16px auto 0;color:var(--rr-muted);font-size:1.18rem}.rr-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:22px}.rr-card{grid-column:span 4;background:#fff;border-radius:var(--rr-radius);padding:32px;min-height:260px;box-shadow:var(--rr-shadow);position:relative;overflow:hidden;text-decoration:none;color:inherit}.rr-card.feature{grid-column:span 6;min-height:360px}.rr-card h3{font-size:1.55rem;margin:0 0 10px;letter-spacing:-.025em}.rr-card p{color:var(--rr-muted);margin:0 0 22px;line-height:1.55}.rr-card a,.rr-card .rr-link{color:var(--rr-blue);font-weight:600;text-decoration:none}.rr-number{font-size:.8rem;letter-spacing:.1em;color:var(--rr-muted);text-transform:uppercase}.rr-course{background:#000;color:#fff;border-radius:36px;padding:56px;overflow:hidden}.rr-course p{color:#a1a1a6}.rr-course-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:34px}.rr-step{background:#151516;border:1px solid #2b2b2d;border-radius:18px;padding:18px;min-height:108px}.rr-step span{display:block;color:#7c7c80;font-size:.8rem;margin-bottom:8px}.rr-footer{background:#f5f5f7;padding:46px 0;border-top:1px solid #e5e5e5}.rr-footer-grid{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap}.rr-footer small,.rr-footer p{color:var(--rr-muted)}.rr-reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}.rr-reveal.is-visible{opacity:1;transform:none}
/* Inner pages */
.rr-inner-hero{padding:100px 0 72px;background:linear-gradient(180deg,#f3f8ff 0,#fff 100%)}.rr-inner-hero .rr-shell{max-width:1000px}.rr-inner-hero h1{margin:0;font-size:clamp(3rem,7vw,6.6rem);line-height:.95;letter-spacing:-.06em}.rr-inner-hero p{max-width:800px;margin:24px 0 0;color:var(--rr-muted);font-size:clamp(1.1rem,2vw,1.45rem)}.rr-inner-hero.ai{background:radial-gradient(circle at 75% 0,#efe9ff 0,#f7f5ff 28%,#fff 70%)}.rr-inner-hero.pi{background:radial-gradient(circle at 75% 0,#eaf7ef 0,#f5fbf7 30%,#fff 70%)}.rr-inner-hero.linux{background:radial-gradient(circle at 75% 0,#fff1d9 0,#fff9ef 30%,#fff 70%)}.rr-inner-hero.wordpress{background:radial-gradient(circle at 75% 0,#e7f2fb 0,#f4f9fd 30%,#fff 70%)}.rr-inner-hero.security{background:radial-gradient(circle at 75% 0,#e9f5ff 0,#f4faff 30%,#fff 70%)}.rr-inner-hero.webdev{background:radial-gradient(circle at 75% 0,#f2efff 0,#faf9ff 30%,#fff 70%)}.rr-inner-hero.programming{background:radial-gradient(circle at 75% 0,#edf4ff 0,#f8faff 30%,#fff 70%)}.rr-inner-hero.homelab{background:radial-gradient(circle at 75% 0,#eef2f4 0,#fafbfc 30%,#fff 70%)}.rr-inner-hero.projects{background:radial-gradient(circle at 75% 0,#fff1e9 0,#fff8f4 30%,#fff 70%)}
.rr-archive-wrap{padding:72px 0 100px}.rr-archive-heading{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:34px}.rr-archive-heading h2{font-size:clamp(2rem,4vw,3.6rem);letter-spacing:-.04em;margin:0}.rr-archive-heading p{color:var(--rr-muted);margin:0;max-width:560px}.rr-post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.rr-post-card{background:#fff;border:1px solid #ececef;border-radius:24px;overflow:hidden;box-shadow:0 12px 34px rgba(0,0,0,.055);display:flex;flex-direction:column;height:100%}.rr-post-card .wp-block-post-featured-image{margin:0}.rr-post-card .wp-block-post-featured-image img{width:100%;aspect-ratio:16/9;object-fit:cover}.rr-post-card-body{padding:26px}.rr-post-card h3,.rr-post-card .wp-block-post-title{font-size:1.45rem;line-height:1.15;letter-spacing:-.025em;margin:8px 0 12px}.rr-post-card .wp-block-post-title a{color:var(--rr-ink);text-decoration:none}.rr-post-card .wp-block-post-excerpt{color:var(--rr-muted)}.rr-post-meta{font-size:.8rem;color:var(--rr-muted);text-transform:uppercase;letter-spacing:.07em}.rr-empty{padding:54px;border-radius:24px;background:var(--rr-canvas);text-align:center;color:var(--rr-muted)}.rr-pagination{margin-top:40px}.rr-page-shell{max-width:980px;margin:0 auto;padding:90px 24px}.rr-page-shell>.wp-block-post-title{font-size:clamp(3rem,7vw,6rem);letter-spacing:-.055em;line-height:.98;margin-bottom:38px}.rr-content{font-size:1.08rem;line-height:1.75}.rr-content h2{font-size:2.2rem;letter-spacing:-.035em;margin-top:2.1em}.rr-content h3{font-size:1.55rem;margin-top:1.8em}.rr-project-intro{padding:100px 0 64px}.rr-project-intro h1{font-size:clamp(3.4rem,8vw,7rem);letter-spacing:-.065em;line-height:.93;margin:0}.rr-project-intro p{font-size:1.35rem;color:var(--rr-muted);max-width:760px}.rr-single-hero{padding:80px 0 42px}.rr-single-hero .wp-block-post-terms{color:var(--rr-blue);font-weight:650}.rr-single-hero .wp-block-post-title{font-size:clamp(3rem,7vw,6.5rem);letter-spacing:-.06em;line-height:.97;margin:14px 0 18px}.rr-single-meta{color:var(--rr-muted);display:flex;gap:12px;flex-wrap:wrap}.rr-single-content{max-width:840px;margin:0 auto;padding:20px 24px 96px}.rr-single-content .wp-block-post-content{font-size:1.08rem;line-height:1.75}.rr-single-content .wp-block-post-content h2{font-size:2.25rem;letter-spacing:-.035em;margin-top:2em}.rr-single-nav{border-top:1px solid var(--rr-line);margin-top:56px;padding-top:28px;display:flex;justify-content:space-between;gap:24px}
@media(max-width:900px){.rr-card,.rr-card.feature{grid-column:span 6}.rr-course-steps{grid-template-columns:repeat(2,1fr)}.rr-navlinks{display:none}.rr-mobile-toggle{display:block}.rr-header.open .rr-navlinks{display:flex;position:absolute;top:66px;left:0;right:0;background:rgba(255,255,255,.98);padding:24px;flex-direction:column;align-items:flex-start;border-bottom:1px solid #eee}.rr-course{padding:38px 24px}.rr-post-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:620px){.rr-shell{padding:0 18px}.rr-hero{padding:78px 18px 64px;min-height:auto}.rr-hero h1{font-size:clamp(3rem,16vw,5rem)}.rr-section{padding:66px 0}.rr-card,.rr-card.feature{grid-column:1/-1;min-height:auto}.rr-course-steps{grid-template-columns:1fr}.rr-course{border-radius:26px}.rr-logo{width:140px}.rr-actions{flex-direction:column;align-items:stretch}.rr-button{width:100%}.rr-inner-hero{padding:72px 0 52px}.rr-inner-hero h1{font-size:clamp(2.7rem,14vw,4.5rem)}.rr-post-grid{grid-template-columns:1fr}.rr-archive-heading{align-items:flex-start;flex-direction:column}.rr-page-shell{padding:64px 18px}.rr-project-intro{padding:72px 0 44px}.rr-single-hero{padding:64px 0 30px}.rr-single-content{padding-left:18px;padding-right:18px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}.rr-reveal{opacity:1;transform:none}}
.rr-post-card>a>img,.rr-single-content>img{width:100%;height:auto;display:block}.rr-post-card>a>img{aspect-ratio:16/9;object-fit:cover}.rr-post-card h3 a{color:var(--rr-ink);text-decoration:none}.rr-post-card-body>.rr-link{color:var(--rr-blue);font-weight:600;text-decoration:none}.rr-page-shell>h1{font-size:clamp(3rem,7vw,6rem);letter-spacing:-.055em;line-height:.98;margin:0 0 38px}.rr-single-hero h1{font-size:clamp(3rem,7vw,6.5rem);letter-spacing:-.06em;line-height:.97;margin:14px 0 18px}.rr-single-hero a{color:var(--rr-blue);font-weight:650;text-decoration:none}.navigation.pagination{margin-top:42px}.nav-links{display:flex;gap:12px;flex-wrap:wrap}.page-numbers{padding:9px 13px;border:1px solid var(--rr-line);border-radius:999px;text-decoration:none;color:var(--rr-ink)}.page-numbers.current{background:var(--rr-ink);color:#fff}
/* V4 educational landing-page content */
.rr-landing-intro{padding:82px 0;background:#fff}.rr-learning-layout{display:grid;grid-template-columns:minmax(0,.86fr) minmax(0,1.14fr);gap:72px;align-items:start}.rr-eyebrow{font-size:.78rem;font-weight:700;letter-spacing:.11em;text-transform:uppercase;color:var(--rr-blue);margin-bottom:12px}.rr-learning-copy{position:sticky;top:110px}.rr-learning-copy h2{font-size:clamp(2.35rem,5vw,4.6rem);line-height:.98;letter-spacing:-.05em;margin:0 0 20px}.rr-learning-copy p{color:var(--rr-muted);font-size:1.18rem;line-height:1.65;margin:0}.rr-topic-list{border-top:1px solid var(--rr-line)}.rr-topic-item{display:grid;grid-template-columns:52px 1fr;gap:10px;padding:20px 0;border-bottom:1px solid var(--rr-line);align-items:start}.rr-topic-item span{font-size:.76rem;color:#86868b;padding-top:4px}.rr-topic-item p{font-size:1.08rem;line-height:1.48;margin:0}.rr-path-section{padding:82px 0;background:var(--rr-canvas)}.rr-path-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.rr-path-card{background:#fff;border-radius:22px;padding:24px;min-height:138px;display:flex;flex-direction:column;justify-content:space-between;box-shadow:0 10px 26px rgba(0,0,0,.045)}.rr-path-card span{color:#86868b;font-size:.76rem}.rr-path-card strong{font-size:1.12rem;line-height:1.2}.rr-empty-rich{grid-column:1/-1;line-height:1.7}.rr-empty-rich strong{color:var(--rr-ink);font-size:1.2rem}
@media(max-width:900px){.rr-learning-layout{grid-template-columns:1fr;gap:38px}.rr-learning-copy{position:static}.rr-path-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:620px){.rr-landing-intro,.rr-path-section{padding:58px 0}.rr-path-grid{grid-template-columns:1fr}.rr-path-card{min-height:108px}.rr-topic-item{grid-template-columns:40px 1fr}}

.rr-path-card.rr-path-link{display:flex;flex-direction:column;text-decoration:none;color:inherit;transition:transform .2s ease,box-shadow .2s ease}.rr-path-card.rr-path-link:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(0,0,0,.08)}.rr-path-card em{font-style:normal;color:#0071e3;font-size:.82rem;margin-top:14px}.rr-lead{font-size:1.22rem;line-height:1.65;color:#424245}.rr-lesson-step{display:grid;grid-template-columns:52px minmax(0,1fr);gap:18px;padding:26px 0;border-top:1px solid #dedee3}.rr-step-number{font-size:.8rem;color:#6e6e73;font-weight:700;letter-spacing:.08em;padding-top:7px}.rr-step-body h3{margin:.1em 0 .45em;font-size:1.4rem}.rr-step-body p{margin:.25em 0 1em}.rr-single-content .wp-block-code{margin:18px 0 6px}.rr-content h2{margin-top:2.2em}.rr-content h3{margin-top:0}@media(max-width:640px){.rr-lesson-step{grid-template-columns:36px 1fr;gap:10px}.rr-step-body h3{font-size:1.2rem}}