:root{--bg:#111213;--surf:#1a1b21;--btn:#51fe9e;--btnh:#9affd5;--btxt:#1f2028;--fg:#fff;--link:#5aef9f;--bd:#343641;--acc:#22d6e4}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--fg);font:400 1rem/1.7 Poppins,sans-serif}
img{max-width:100%;height:auto;display:block}a{color:var(--link)}a:hover{color:#5dffc9}
:focus-visible{outline:3px solid var(--acc);outline-offset:3px}
.wrap{width:min(1180px,100% - 2rem);margin-inline:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(17,18,19,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--bd)}
.bar{display:flex;align-items:center;gap:1.5rem;padding:.6rem 0}.brand img{height:40px;width:auto}
.nav{display:flex;gap:1.25rem;margin-left:auto}.nav a{color:var(--fg);text-decoration:none;padding:.5rem 0}.nav a:hover{color:var(--btn)}
.nav-toggle{display:none;margin-left:auto;background:none;color:var(--fg);border:1px solid var(--bd);border-radius:8px;padding:.6rem 1rem;min-height:44px;font:inherit}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:.7rem 1.4rem;background:var(--btn);color:var(--btxt);font-weight:600;border-radius:999px;text-decoration:none;transition:background .2s,transform .2s}
.btn:hover{background:var(--btnh);color:var(--btxt);transform:translateY(-2px)}
.hero{padding:clamp(3rem,8vw,6rem) 0;background:radial-gradient(60% 80% at 80% 0,rgba(34,214,228,.16),transparent),radial-gradient(50% 70% at 0 100%,rgba(81,254,158,.12),transparent)}
.hero .grid,.split{display:grid;grid-template-columns:1.1fr .9fr;gap:2.5rem;align-items:center}
.hero h1{font-size:clamp(2.2rem,5.5vw,4.2rem);line-height:1.08;margin:0 0 1rem}.lead{font-size:1.2rem;color:#d7d9e0}
.hero img,.split img{border-radius:16px;border:1px solid var(--bd);width:100%}
section.block{padding:clamp(2.5rem,6vw,4.5rem) 0;border-top:1px solid var(--bd)}
h2{font-size:clamp(1.6rem,3.4vw,2.4rem);line-height:1.2;margin:0 0 1rem}h3{margin:1.5rem 0 .5rem}
.note{background:var(--surf);border-left:4px solid var(--acc);padding:1rem 1.25rem;border-radius:8px}
table{width:100%;border-collapse:collapse;background:var(--surf);border-radius:12px;overflow:hidden}th,td{padding:.8rem 1rem;text-align:left;border-bottom:1px solid var(--bd)}th{color:var(--btn)}
.tw{overflow-x:auto}
details{background:var(--surf);border:1px solid var(--bd);border-radius:10px;padding:.9rem 1.1rem;margin:.6rem 0}summary{cursor:pointer;font-weight:600;min-height:32px}
.cta{background:var(--surf);border:1px solid var(--bd);border-radius:20px;padding:2rem;text-align:center;margin:2rem 0}
.meta{color:#aab;font-size:.9rem}
.site-footer{background:var(--surf);border-top:1px solid var(--bd);padding:2.5rem 0 1.5rem;margin-top:3rem}
.cols{display:grid;grid-template-columns:1.4fr 1fr 1.4fr;gap:2rem}.site-footer nav a{display:block;color:var(--fg);padding:.3rem 0;text-decoration:none}.site-footer h2{font-size:1.1rem}.small{color:#aab;font-size:.9rem}
.reveal{opacity:1;transition:opacity .6s,transform .6s}.js .reveal:not(.in){opacity:0;transform:translateY(16px)}
@media(max-width:820px){.hero .grid,.split,.cols{grid-template-columns:1fr}.nav-toggle{display:inline-flex}.nav{display:none;position:absolute;left:0;right:0;top:100%;background:var(--bg);flex-direction:column;padding:1rem;border-bottom:1px solid var(--bd)}.nav.open{display:flex}.bar>.btn{display:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.reveal,.btn{transition:none}.js .reveal:not(.in){opacity:1;transform:none}}
main a:not(.btn),.site-footer a:not(.btn),.hero p a{display:inline-block;padding:.65rem .15rem;min-height:44px}.nav a{min-height:44px;display:inline-flex;align-items:center}.meta{font-size:.9rem}
li>a,p>a,.brand,.site-footer a,summary,.nav-toggle{display:inline-flex;align-items:center;min-height:44px}.site-footer nav a{display:flex}.brand{padding:0 .25rem}html,body{overflow-x:hidden}.hero .grid>*,.split>*{min-width:0}.btn{white-space:normal;text-align:center}