:root{
  --paper:#f3f2ec; --paper-2:#ecebe8; --card:#fff; --dark:#1a1a1d; --dark-2:#232327;
  --ink:#17171a; --ink-2:#5c5c63; --ink-3:#8f8f97;
  --lime:#d6f24a; --lime-d:#c3e22f; --line:#e4e2d8; --line-d:rgba(255,255,255,.1);
  --radius:18px; --radius-lg:24px;
  --head:"Red Hat Display",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,monospace;
  --shadow-sm:0 1px 2px rgba(20,20,25,.04),0 10px 30px -16px rgba(20,20,25,.14);
  --shadow-md:0 14px 40px -20px rgba(20,20,25,.25);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--head);color:var(--ink-2);background:#fff;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
h1,h2,h3,h4{font-family:var(--head);color:var(--ink);font-weight:600;letter-spacing:-.02em;line-height:1.1}
.wrap{max-width:1240px;margin:0 auto;padding:0 32px}
.h2{font-size:clamp(1.9rem,3.6vw,2.9rem);font-weight:500;letter-spacing:normal;line-height:1.15}
.lead{font-size:clamp(1.05rem,1.5vw,1.2rem);color:var(--ink-2)}
.mark{display:inline-block;font-family:var(--head);font-weight:600;font-size:.82rem;color:var(--ink);
  padding:.2em .5em;background:linear-gradient(transparent 42%,var(--lime) 42% 88%,transparent 88%);border-radius:2px}

.btn{display:inline-flex;align-items:center;gap:.5em;font-family:var(--head);background:var(--ink);color:#fff;
  font-weight:500;font-size:.98rem;padding:.82em 1.5em;border-radius:999px;border:0;cursor:pointer;
  transition:transform .15s,background .15s;white-space:nowrap}
.btn:hover{background:#000;transform:translateY(-1px)}
.btn svg{width:16px;height:16px}
.btn.lime{background:var(--lime);color:var(--ink)}.btn.lime:hover{background:var(--lime-d)}
.btn.ghost{background:transparent;color:var(--ink);box-shadow:inset 0 0 0 1.5px var(--line)}
.btn.ghost:hover{box-shadow:inset 0 0 0 1.5px var(--ink)}
.btn.big{font-size:1.02rem;padding:.95em 1.7em}

header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.85);backdrop-filter:blur(14px)}
.nav{display:flex;align-items:center;justify-content:space-between;padding:18px 32px;max-width:1240px;margin:0 auto}
.nav-left{display:flex;align-items:center;column-gap:3rem}
.brand{display:flex;align-items:center;gap:.55em;font-family:var(--head);font-size:1.2rem;font-weight:700;color:var(--ink);letter-spacing:-.02em;white-space:nowrap}
.brand .mk{width:32px;height:32px;border-radius:9px;background:var(--ink);display:grid;place-items:center;flex:none}
.brand .mk svg{width:18px;height:18px;color:var(--lime)}
.menu{display:flex;gap:.6rem;align-items:center}
.menu a{font-family:var(--head);font-size:.945rem;font-weight:400;color:var(--ink);padding:.55rem 1rem;line-height:1.25;border-radius:1.25rem;border:1px solid transparent;transition:border-color .2s}
.menu a:hover{border-color:var(--lime)}
.menu a.on{border-color:#2d2d2d}
.nav .btn{font-size:.85rem;font-weight:600;padding:.72rem 1.35rem}
.burger{display:none;background:none;border:0;cursor:pointer;padding:6px}
.burger span{display:block;width:22px;height:2px;background:var(--ink);margin:5px 0;border-radius:2px}

section{padding:80px 0}

/* ---- articles index ---- */
.art-hero{padding:16px 0 8px}
.art-hero .panel{background:var(--paper-2);border-radius:23px;padding:56px 52px}
.art-hero .mark{margin-bottom:20px}
.art-hero h1{font-size:clamp(2.4rem,4.4vw,3.3rem);font-weight:500;line-height:1.12;letter-spacing:normal;max-width:18ch;color:var(--ink)}
.art-hero .lead{margin-top:20px;max-width:60ch}
.art-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.art-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px;transition:transform .18s,box-shadow .18s}
.art-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.art-meta{display:flex;align-items:center;gap:11px;font-family:var(--head);font-size:.8rem;font-weight:600;color:var(--ink-3)}
.art-cat{color:var(--ink);background:var(--lime);padding:.28em .7em;border-radius:999px;font-size:.68rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em}
.art-card h3{font-size:1.2rem;font-weight:600;margin:15px 0 10px;line-height:1.28}
.art-card p{font-size:.94rem;color:var(--ink-2);line-height:1.6;flex:1}
.art-card .more{margin-top:18px;font-family:var(--head);font-weight:600;font-size:.9rem;color:var(--ink);display:inline-flex;align-items:center;gap:7px}
.art-card .more svg{width:15px;height:15px;transition:transform .15s}
.art-card:hover .more svg{transform:translateX(3px)}

/* ---- single article ---- */
.crumb{display:flex;gap:8px;align-items:center;font-family:var(--head);font-size:.86rem;color:var(--ink-3);padding:26px 0 0}
.crumb a:hover{color:var(--ink)}
.crumb span{opacity:.5}
.post{max-width:748px;margin:0 auto;padding:28px 0 8px}
.post .art-meta{margin-bottom:18px}
.post h1{font-size:clamp(2rem,3.6vw,2.9rem);font-weight:500;letter-spacing:normal;line-height:1.14;color:var(--ink)}
.post .standfirst{font-size:1.2rem;color:var(--ink-2);line-height:1.6;margin-top:20px}
.post-hr{border:0;border-top:1px solid var(--line);margin:34px 0}
.prose{max-width:748px;margin:0 auto}
.prose h2{font-size:1.5rem;font-weight:600;letter-spacing:-.01em;line-height:1.25;margin:40px 0 14px;color:var(--ink)}
.prose h3{font-size:1.18rem;font-weight:600;margin:28px 0 10px;color:var(--ink)}
.prose p{font-size:1.08rem;color:var(--ink-2);line-height:1.75;margin-bottom:20px}
.prose strong{color:var(--ink);font-weight:600}
.prose a{color:var(--ink);text-decoration:underline;text-underline-offset:3px}
.prose ul,.prose ol{margin:0 0 22px 1.2em;color:var(--ink-2);font-size:1.08rem;line-height:1.75}
.prose li{margin-bottom:10px}
.prose blockquote{border-left:3px solid var(--lime);padding:4px 0 4px 22px;margin:26px 0;color:var(--ink);font-size:1.15rem;font-weight:500}
.prose .lime-word{background:linear-gradient(transparent 55%,var(--lime) 55% 92%,transparent 92%);padding:0 .05em}
.prose code{font-family:var(--mono);font-size:.9em;background:var(--paper-2);padding:.15em .45em;border-radius:5px;color:var(--ink)}
.pullbox{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:24px 26px;margin:28px 0}
.pullbox h4{font-size:1.02rem;font-weight:700;margin-bottom:10px}
.pullbox ul{margin:0 0 0 1.1em;font-size:1rem}
.pullbox li{margin-bottom:7px}

/* ---- demo page ---- */
.demo-hero{padding:16px 0 8px}
.demo-hero .panel{background:var(--paper-2);border-radius:23px;padding:52px 52px 40px}
.demo-hero .mark{margin-bottom:18px}
.demo-hero h1{font-size:clamp(2.2rem,4vw,3rem);font-weight:500;line-height:1.12;letter-spacing:normal;color:var(--ink);max-width:16ch}
.demo-hero .lead{margin-top:18px;max-width:54ch}
.demo-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:start;margin-top:8px}
.demo-points{display:grid;gap:22px;margin-top:8px}
.dpoint{display:flex;gap:14px;align-items:flex-start}
.dpoint .c{width:26px;height:26px;border-radius:50%;background:var(--lime);color:var(--ink);display:grid;place-items:center;flex:none;margin-top:2px}
.dpoint .c svg{width:14px;height:14px;stroke-width:3}
.dpoint h4{font-size:1.02rem;font-weight:600;color:var(--ink);margin-bottom:3px}
.dpoint p{font-size:.95rem;color:var(--ink-2);line-height:1.55}
.form{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:34px;box-shadow:var(--shadow-sm)}
.field{margin-bottom:18px}
.field label{display:block;font-family:var(--head);font-size:.88rem;font-weight:600;color:var(--ink);margin-bottom:7px}
.field label .opt{color:var(--ink-3);font-weight:400}
.field input,.field textarea{width:100%;font-family:var(--head);font-size:1rem;color:var(--ink);background:var(--paper);
  border:1px solid var(--line);border-radius:12px;padding:13px 15px;transition:border-color .15s,box-shadow .15s}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 3px rgba(214,242,74,.5)}
.field textarea{min-height:120px;resize:vertical}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form .btn{width:100%;justify-content:center;margin-top:4px}
.form .note{font-size:.84rem;color:var(--ink-3);margin-top:14px;text-align:center}
.form-msg{display:none;border-radius:14px;padding:16px 18px;font-size:.98rem;line-height:1.5}
.form-msg.ok{display:block;background:var(--lime);color:var(--ink);font-weight:500}
.form-msg.err{display:block;background:#fde8e8;color:#8a1f1f;border:1px solid #f3c6c6}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

/* next steps / cta band */
.cta-band{background:var(--dark);border-radius:var(--radius-lg);padding:56px;text-align:center}
.cta-band h2{color:#fff;max-width:22ch;margin:0 auto 14px}
.cta-band p{color:#9a9aa2;font-size:1.06rem;max-width:52ch;margin:0 auto 26px}
.cta-band .btn{background:var(--lime);color:var(--ink)}.cta-band .btn:hover{background:var(--lime-d)}

/* read more */
.more-head{display:flex;align-items:baseline;justify-content:space-between;gap:20px;margin-bottom:26px}
.more-head h2{font-size:1.6rem;font-weight:500;letter-spacing:normal}
.more-head a{font-family:var(--head);font-weight:600;font-size:.92rem;color:var(--ink-2)}
.more-head a:hover{color:var(--ink)}

footer{background:var(--dark);color:#8f8f97;padding:64px 0 30px;font-size:.92rem;margin-top:20px;border-radius:var(--radius-lg) var(--radius-lg) 0 0}
.foot-grid{display:flex;align-items:flex-start;justify-content:space-between;gap:30px;flex-wrap:wrap;padding-bottom:40px;border-bottom:1px solid var(--line-d)}
footer .brand{color:#fff;margin-bottom:12px}
footer .brand .mk{background:var(--lime)}footer .brand .mk svg{color:var(--ink)}
footer .about{max-width:26em;color:#8f8f97}
.foot-links{display:flex;gap:44px;flex-wrap:wrap}
.foot-links h5{font-family:var(--head);color:#fff;font-size:.78rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;margin-bottom:14px}
.foot-links ul{list-style:none}.foot-links li{margin-bottom:10px}.foot-links a:hover{color:#fff}
.foot-bar{padding-top:24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:.85rem;color:#6d6d75}

.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

@media(max-width:900px){
  .art-hero .panel{padding:40px 28px}
  .art-grid{grid-template-columns:1fr 1fr}
  .menu{display:none}.burger{display:block}
  .cta-band{padding:44px 26px}
  section{padding:60px 0}
}
@media(max-width:620px){ .art-grid{grid-template-columns:1fr} }
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.reveal{opacity:1;transform:none}}