:root{--bg:#0b1424;--surface:#121e33;--ink:#e8eef8;--muted:#a9b6cb;--accent:#56d38a;--accent-ink:#06140c;--accent2:#f3df7a;--line:#24344f;--hero-ink:#e8eef8;--r:10px;--maxw:1680px;--measure:47.5rem;--hf:'Lexend Giga', 'Arial', sans-serif;--bf:'IBM Plex Sans', system-ui, sans-serif}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 var(--bf)}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent);text-underline-offset:.18em}
h1,h2,h3,h4{font-family:var(--hf);line-height:1.18;margin:1.6em 0 .5em;font-weight:600;letter-spacing:-.04em}
h1{font-size:clamp(2rem,4.6vw,2.9rem);margin-top:0}
h2{font-size:clamp(1.4rem,2.6vw,2.1rem)}h3{font-size:1.2rem}
p,ul,ol,table,details{margin:0 0 1.1em}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 clamp(16px,3vw,48px)}
.skip{position:absolute;left:-999px}.skip:focus{left:10px;top:10px;background:var(--surface);padding:8px;z-index:9}
header.site{border-bottom:1px solid var(--line);background:var(--surface)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:14px;padding-bottom:14px;flex-wrap:wrap}
.brand{font-family:var(--hf);font-weight:800;font-size:1.25rem;color:var(--ink);text-decoration:none;display:flex;align-items:center;gap:10px}
.brand svg{flex:none}
nav.main ul{list-style:none;display:flex;flex-wrap:wrap;gap:4px 20px;margin:0;padding:0}
nav.main a{color:var(--ink);text-decoration:none;font-size:.95rem;padding:4px 0;border-bottom:2px solid transparent}
nav.main a[aria-current]{border-color:var(--accent)}
.menu-btn{display:none}
@media(max-width:860px){.menu-btn{display:inline-block;background:none;border:1px solid var(--line);color:var(--ink);border-radius:var(--r);padding:6px 12px;font:inherit}
nav.main{width:100%;display:none}nav.main.open{display:block}nav.main ul{flex-direction:column;gap:6px}}
.hero{position:relative;overflow:hidden}
.hero .wrap{padding-top:clamp(36px,5vw,84px);padding-bottom:clamp(36px,5vw,84px)}
.hero .lead{font-size:1.18rem;color:var(--muted);max-width:62ch}
.hero.split .wrap{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(28px,4vw,72px);align-items:center}
.hero.plain{background:var(--surface);border-bottom:1px solid var(--line)}
.hero.full{color:var(--hero-ink);min-height:clamp(380px,46vw,640px);display:flex;align-items:flex-end}
.hero.full .wrap{position:relative;z-index:1;width:100%}.hero.full .lead{color:inherit;opacity:.92}
@media(max-width:860px){.hero.split .wrap{grid-template-columns:1fr}}
.page{display:grid;gap:48px;padding-top:44px;padding-bottom:72px}
.page.toc-layout{grid-template-columns:240px minmax(0,1fr)}
.page.toc-layout .toc{position:sticky;top:20px;align-self:start;font-size:.92rem;border-left:3px solid var(--accent);padding-left:14px}
.page.toc-layout .toc ul{list-style:none;padding:0;margin:0}.page.toc-layout .toc li{margin:.35em 0}
.page.toc-layout .toc a{color:var(--muted);text-decoration:none}
@media(max-width:900px){.page.toc-layout{grid-template-columns:1fr}.page.toc-layout .toc{position:static}}
/* Cards, grids and tables use the full container width; running text keeps a readable measure, centred. */
article.prose{max-width:none;min-width:0}
article.prose>:is(p,ul,ol,h2,h3,h4,blockquote,dl,details,.callout,.table-wrap,form.lead){max-width:var(--measure);margin-left:auto;margin-right:auto}
.page.toc-layout article.prose>*{margin-left:0;margin-right:0}
.page.wide article.prose>*{max-width:none}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px;margin:0 0 1.6em}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px}
.card h3{margin-top:0}.card p:last-child{margin-bottom:0}
a.card{display:block;color:var(--ink);text-decoration:none}a.card:hover{border-color:var(--accent)}
.callout{border-left:4px solid var(--accent2);background:var(--surface);padding:14px 18px;border-radius:0 var(--r) var(--r) 0;margin:0 auto 1.2em}
.table-wrap{overflow-x:auto;margin:0 0 1.2em}
table{border-collapse:collapse;width:100%;font-size:.95rem}
th,td{border-bottom:1px solid var(--line);padding:9px 10px;text-align:left;vertical-align:top}
th{font-family:var(--hf);background:var(--surface)}
details{border:1px solid var(--line);border-radius:var(--r);padding:10px 16px;background:var(--surface)}
details+details{margin-top:-.5em}
summary{cursor:pointer;font-weight:600}
.steps{counter-reset:s;list-style:none;padding:0}.steps li{counter-increment:s;position:relative;padding-left:44px;margin-bottom:1em}
.steps li::before{content:counter(s);position:absolute;left:0;top:0;width:30px;height:30px;border-radius:50%;background:var(--accent);color:var(--accent-ink);display:grid;place-items:center;font-weight:700;font-size:.9rem}
.btn{display:inline-block;background:var(--accent);color:var(--accent-ink);padding:11px 20px;border-radius:var(--r);text-decoration:none;font-weight:600;border:0;font:inherit;font-weight:600;cursor:pointer}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.meta{font-size:.88rem;color:var(--muted)}
.label-concept{display:inline-block;font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;background:var(--ink);color:var(--bg);padding:2px 8px;border-radius:3px}
.ai-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin:0 0 1.8em}.ai-grid figure{margin:0}.ai-grid img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r)}.ai-grid figcaption{display:grid;gap:4px;font-size:.9rem;color:var(--muted);padding-top:8px}.ai-grid .label-concept{justify-self:start}@media(max-width:900px){.ai-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:560px){.ai-grid{grid-template-columns:1fr}}
footer.site{border-top:1px solid var(--line);background:var(--surface);font-size:.92rem;color:var(--muted)}
footer.site .wrap{padding-top:32px;padding-bottom:32px;display:grid;gap:18px}
footer.site ul{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:6px 18px}
footer.site a{color:var(--muted)}
form.lead{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:24px;margin:0 auto 1.4em;display:grid;gap:12px;grid-template-columns:1fr 1fr}
form.lead .full{grid-column:1/-1}form.lead label{display:grid;gap:4px;font-size:.92rem;font-weight:600}
form.lead input,form.lead textarea,form.lead select{font:inherit;padding:9px 11px;border:1px solid var(--line);border-radius:calc(var(--r) / 2);background:var(--bg);color:var(--ink)}
form.lead .consent{display:flex;gap:10px;align-items:flex-start;font-weight:400;font-size:.82rem;color:var(--muted)}form.lead .consent input{margin-top:3px}
form.lead .hp{position:absolute;left:-9999px}
@media(max-width:600px){form.lead{grid-template-columns:1fr}}
/* Directory parts */
.sponsored{border:1px dashed var(--accent);border-radius:var(--r);padding:16px 18px;background:var(--surface);display:flex;gap:14px;align-items:center;justify-content:space-between;flex-wrap:wrap;margin:0 0 1.6em}
.sponsored .tag{font-size:.72rem;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);font-weight:700}
.tools{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px;margin:0 0 1.6em;padding:0;list-style:none}
.tool{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:16px 18px;display:flex;flex-direction:column;gap:6px}
.tool h3{margin:0;font-size:1.08rem}.tool h3 a{color:var(--ink);text-decoration:none}.tool h3 a:hover{color:var(--accent)}
.tool p{margin:0;font-size:.94rem;color:var(--muted)}
.tool .cat{font-size:.78rem;text-transform:uppercase;letter-spacing:.06em;color:var(--accent);text-decoration:none;font-weight:700}
.filter{display:flex;gap:10px;align-items:center;margin:0 0 1.2em;flex-wrap:wrap}
.filter input{font:inherit;padding:10px 12px;border:1px solid var(--line);border-radius:var(--r);background:var(--surface);color:var(--ink);min-width:min(420px,100%)}
.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin:0 0 1.6em}
.facts div{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:14px 16px}
.facts dt{font-size:.78rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:0}.facts dd{margin:.2em 0 0;font-weight:600}
.rk{--g:#56d38a;--g2:#1f4a35;--y:#f3df7a;--y2:#3b3720;--ink2:#0b1424;--panel:#0f1a2d;--blue:#8fb4ff}
.rk header.site{background:rgba(11,20,36,.94);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5;backdrop-filter:blur(6px)}
.rk .brand{font-size:1rem;font-weight:700;letter-spacing:-.05em}
.rk nav.main a{font-weight:500;color:#d5deec}
.rk nav.main a[aria-current],.rk nav.main a:hover{border-color:var(--y);color:#fff}
.rk h1{font-size:clamp(1.5rem,3.6vw,2.9rem);line-height:1.22}
.rk h2{font-size:clamp(1.15rem,2vw,1.7rem);line-height:1.3}
.rk h3{font-size:1rem;letter-spacing:-.05em}
.rk .hero.split{background:radial-gradient(ellipse 50% 70% at 88% 30%,rgba(86,211,138,.12),transparent 70%),radial-gradient(ellipse 40% 50% at 10% 100%,rgba(243,223,122,.07),transparent 70%),var(--bg);border-bottom:1px solid var(--line)}
.rk .hero.plain{background:linear-gradient(180deg,#0f1b30,var(--bg));border-bottom:1px solid var(--line)}
.rk .hero .kicker{display:inline-flex;align-items:center;gap:8px;color:var(--y);font-weight:600;letter-spacing:.08em;text-transform:uppercase;font-size:.78rem}
.rk .hero .kicker::before{content:"";width:22px;height:2px;background:var(--y)}
.rk .hero h1{max-width:22ch}
.rk .hero .lead{color:#c3cede}
.rk .hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.rk .btn{border-radius:6px;padding:12px 22px;font-weight:700}
.rk .btn:hover{background:#7be0a5}
.rk .btn.ghost{background:transparent;color:var(--ink);border:1.5px solid #3b4e70}.rk .btn.ghost:hover{border-color:var(--y);color:var(--y);background:transparent}
.rk article.prose>h2{display:flex;align-items:baseline;gap:12px}
.rk article.prose>h2::before{content:"";flex:none;width:10px;height:10px;border-radius:2px;background:var(--g);transform:translateY(-2px)}
.rk .card{background:var(--surface);border:1px solid var(--line);border-radius:10px}
.rk a.card:hover{border-color:var(--g);background:#14243c}
.rk .card h3{margin:.4em 0 .4em}
.rk .card p{color:#c3cede}
.rk .c-tag{display:inline-block;font-size:.72rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--y);border:1px solid #57502a;border-radius:4px;padding:1px 7px}
.rk .four{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:0;border:1px solid var(--line);border-radius:12px;overflow:hidden;margin:0 0 2em;background:var(--panel)}
.rk .four div{padding:22px 24px;border-right:1px solid var(--line)}.rk .four div:last-child{border-right:0}
.rk .four span{font-family:var(--hf);color:var(--g);font-size:.85rem}
.rk .four b{display:block;font-family:var(--hf);font-size:1.05rem;letter-spacing:-.05em;margin:6px 0}
.rk .four p{margin:0;color:var(--muted);font-size:.95rem}
@media(max-width:700px){.rk .four div{border-right:0;border-bottom:1px solid var(--line)}.rk .four div:last-child{border-bottom:0}}
.rk .snip{margin:0;background:var(--panel);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.rk .serp{background:#fff;color:#202124;padding:18px 20px;font-family:Arial,system-ui,sans-serif;border-bottom:3px solid var(--g)}
.rk .s-site{display:flex;gap:10px;align-items:center;margin-bottom:6px}
.rk .s-fav{width:28px;height:28px;border-radius:50%;background:#e9eef6;color:#1f3b63;display:grid;place-items:center;font-weight:700;font-size:.85rem;flex:none}
.rk .s-site b{display:block;font-size:.88rem;font-weight:500;line-height:1.2}
.rk .s-url{display:block;font-size:.78rem;color:#4d5156;line-height:1.3;word-break:break-all}
.rk .s-title{margin:0 0 4px;color:#1a0dab;font-size:1.18rem;line-height:1.3}
.rk .s-desc{margin:0;color:#474747;font-size:.9rem;line-height:1.5}
.rk .s-notes{list-style:none;margin:0;padding:12px 16px 14px;display:grid;gap:10px}
.rk .s-notes li{display:grid;grid-template-columns:24px minmax(0,1fr);gap:4px 10px;align-items:center}
.rk .s-n{width:22px;height:22px;border-radius:50%;background:var(--y);color:#1b1a0c;font-weight:700;font-size:.75rem;display:grid;place-items:center}
.rk .s-lab{display:flex;flex-wrap:wrap;gap:2px 10px;align-items:baseline;font-size:.86rem}.rk .s-lab b{color:var(--ink)}.rk .s-lab span{color:var(--muted)}
.rk .s-bar{grid-column:2;height:6px;border-radius:3px;background:#22324d;overflow:hidden}
.rk .s-bar i{display:block;height:100%;border-radius:3px}
.rk .s-ok i{background:var(--g)}.rk .s-short i{background:var(--y)}.rk .s-over i{background:#ff7a6b}
.rk .hero-art .snip{box-shadow:0 30px 70px -30px rgba(0,0,0,.8),0 0 0 1px rgba(86,211,138,.15)}
.rk .snip-note{font-size:.84rem;color:var(--muted);margin:10px 2px 0}
.rk .snip-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px 26px;margin:0 0 2em}
.rk .snip-c figcaption{padding:12px 16px 16px;border-top:1px solid var(--line);display:grid;gap:4px}.rk .snip-c figcaption span:last-child{color:var(--muted);font-size:.9rem}
@media(max-width:760px){.rk .snip-grid{grid-template-columns:1fr}}
.rk .label-concept{background:var(--y);color:#1b1a0c;font-weight:700;justify-self:start}
.rk .promise{max-width:var(--measure);margin:2em auto;border:1px dashed #57502a;background:var(--y2);border-radius:12px;padding:18px 22px}
.rk .promise-h{font-family:var(--hf);font-weight:600;letter-spacing:-.05em;color:var(--y);margin:0 0 .4em}
.rk .promise p:last-child{margin:0;color:#e9e4c4}
.rk .cta-band{background:linear-gradient(110deg,#123524,#0f1a2d 70%);border:1px solid #2b5a40;padding:26px 30px;border-radius:14px;display:flex;gap:20px;align-items:center;justify-content:space-between;flex-wrap:wrap;margin:2em 0}
.rk .cta-band p{margin:0;max-width:62ch}
.rk .checks{list-style:none;padding:0}.rk .checks li{padding-left:30px;position:relative;margin-bottom:.6em}
.rk .checks li::before{content:"";position:absolute;left:2px;top:.45em;width:12px;height:7px;border-left:2.5px solid var(--g);border-bottom:2.5px solid var(--g);transform:rotate(-45deg)}
.rk th{background:#162540;color:var(--ink);font-size:.8rem;letter-spacing:-.03em}
.rk td{color:#d3dbe8}
.rk details{background:var(--surface)}.rk summary{color:#fff}.rk details[open] summary{color:var(--g);margin-bottom:.4em}
.rk .callout{background:var(--surface);border-left-color:var(--y)}
.rk .toc{border-left-color:var(--g)}.rk .toc a:hover{color:var(--g)}
.rk .ai-grid figcaption{color:var(--muted)}
.rk footer.site{background:#081020;border-top:1px solid var(--line);color:#a9b6cb}.rk footer.site a{color:#dfe7f3}
.rk form.lead{background:var(--surface);border-color:#2f4466;border-radius:12px}
.rk form.lead input,.rk form.lead textarea,.rk form.lead select{background:#0b1424;border-color:#34496c}
.rk form.lead input:focus,.rk form.lead textarea:focus,.rk form.lead select:focus{outline:2px solid var(--g);outline-offset:1px}
.rk .menu-btn{color:var(--ink);border-color:#3b4e70}