:root{--bg:#f7f8fc;--sf:#fff;--tx:#0f172a;--mu:#526077;--bd:#e3e8f2;--pr:#2563eb;--pr2:#14b8a6;--sh:0 1px 2px rgba(15,23,42,.05),0 8px 24px rgba(15,23,42,.06);--r:20px;color-scheme:light dark}
@media (prefers-color-scheme:dark){:root{--bg:#0b1120;--sf:#131b2e;--tx:#e8edf7;--mu:#a3b0c7;--bd:#24304a;--pr:#6b9bff;--sh:0 1px 2px rgba(0,0,0,.3),0 8px 24px rgba(0,0,0,.25)}}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font:16px/1.65 Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--tx);-webkit-font-smoothing:antialiased}
a{color:var(--pr);text-underline-offset:3px}a:hover{text-decoration-thickness:2px}
h1,h2,h3{line-height:1.2;letter-spacing:-.02em;margin:0 0 .5em}h1{font-size:clamp(2rem,5vw,3.2rem);font-weight:800}h2{font-size:clamp(1.4rem,3vw,1.9rem);font-weight:750}h3{font-size:1.15rem}
.wrap{max-width:1140px;margin:0 auto;padding:0 20px}.page{padding-top:32px;padding-bottom:80px}
.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:12px;z-index:99;background:var(--sf);padding:8px 12px;border-radius:8px}
:focus-visible{outline:3px solid var(--pr);outline-offset:2px;border-radius:6px}
.site-header{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:saturate(1.6) blur(14px);border-bottom:1px solid var(--bd)}
.hbar{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--tx)}.brand span{display:flex;flex-direction:column;line-height:1.05;font-size:1.25rem}
.brand b{font-weight:500}.brand strong{font-weight:800;margin-top:-1.2em;margin-left:2.05em}.brand small{font-size:.7rem;color:var(--mu);font-weight:500}
.brand span{display:block}.brand b,.brand strong{display:inline}.brand strong{margin:0}.brand small{display:block}
.nav{display:flex;gap:4px;margin-left:auto}.nav a{padding:8px 12px;border-radius:999px;text-decoration:none;color:var(--mu);font-weight:550;font-size:.95rem}
.nav a:hover{color:var(--tx);background:var(--sf)}.nav a[aria-current]{color:var(--tx);background:var(--sf);box-shadow:var(--sh)}
.mnav{display:none;margin-left:auto}.mnav summary{list-style:none;cursor:pointer;padding:8px 14px;border:1px solid var(--bd);border-radius:999px;font-weight:600}
.mnav nav{position:absolute;right:16px;top:64px;background:var(--sf);border:1px solid var(--bd);border-radius:16px;box-shadow:var(--sh);padding:8px;display:flex;flex-direction:column;min-width:220px}
.mnav nav a{padding:10px 14px;text-decoration:none;color:var(--tx);border-radius:10px}.mnav nav a[aria-current]{background:var(--bg);font-weight:700}
@media(max-width:900px){.nav{display:none}.mnav{display:block}.hbar>.btn-sm{display:none}}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:999px;background:linear-gradient(135deg,var(--pr),#1d4ed8);color:#fff!important;text-decoration:none;font-weight:650;box-shadow:0 6px 18px rgba(37,99,235,.28);transition:transform .15s}
.btn:hover{transform:translateY(-1px)}.btn-sm{padding:8px 16px;font-size:.9rem}
.btn-ghost{background:var(--sf);color:var(--tx)!important;box-shadow:none;border:1px solid var(--bd)}
.ctas{display:flex;flex-wrap:wrap;gap:12px;margin:20px 0}
.hero{position:relative;display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:center;padding:56px 48px;margin:8px 0 56px;border-radius:32px;overflow:hidden;background:radial-gradient(80% 120% at 0% 0%,rgba(37,99,235,.16),transparent 60%),radial-gradient(70% 100% at 100% 100%,rgba(20,184,166,.18),transparent 60%),var(--sf);border:1px solid var(--bd)}
.hero h1 span{display:block;background:linear-gradient(90deg,var(--pr),var(--pr2));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero>div>p:first-child,.eyebrow,.page>p:first-child:not(.crumb){font-size:.8rem;text-transform:uppercase;letter-spacing:.1em;font-weight:700;color:var(--pr)}
.hero>div>p:nth-of-type(2){font-size:1.15rem;color:var(--mu);max-width:36ch}.hero>div>p:last-child{color:var(--mu);font-size:.9rem}
@media(max-width:820px){.hero{grid-template-columns:1fr;padding:32px 22px;border-radius:24px}}
.feature{display:flex;gap:18px;align-items:flex-start;padding:26px;border-radius:24px;background:var(--sf);box-shadow:var(--sh);text-decoration:none;color:var(--tx);border:1px solid var(--bd)}
.feature>span:last-child{display:flex;flex-direction:column;gap:4px}.feature small{color:var(--c);font-weight:800;letter-spacing:.1em}.feature b{font-size:1.3rem}.feature em{font-style:normal;color:var(--pr);font-weight:600}
.ico{flex:none;display:inline-grid;place-items:center;width:56px;height:56px;border-radius:16px;background:linear-gradient(145deg,color-mix(in srgb,var(--c) 85%,#fff),var(--c));color:#fff;box-shadow:0 6px 16px color-mix(in srgb,var(--c) 35%,transparent)}
.ico svg{width:30px;height:30px}
.sec-head{display:flex;align-items:baseline;gap:12px;margin:48px 0 18px}.sec-head span{font-weight:800;color:var(--pr);font-size:.9rem}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:18px;margin:16px 0}
.card{background:var(--sf);border:1px solid var(--bd);border-radius:var(--r);padding:22px;box-shadow:var(--sh)}
.card.app{padding:0;transition:transform .15s,box-shadow .15s}.card.app:hover{transform:translateY(-3px);box-shadow:0 14px 34px rgba(15,23,42,.12)}
.card.app>a{display:flex;flex-direction:column;gap:10px;height:100%;padding:22px;color:var(--tx);text-decoration:none}
.app-top{display:flex;gap:14px;align-items:center}.app-top p{margin:0;font-size:.78rem;color:var(--mu);text-transform:uppercase;letter-spacing:.06em;font-weight:600}.app-top h3{margin:0}
.card.app>a>p{color:var(--mu);margin:0;flex:1}
.tags{display:flex;flex-wrap:wrap;gap:6px}.tags span{font-size:.78rem;font-weight:600;padding:4px 10px;border-radius:999px;background:var(--bg);border:1px solid var(--bd)}
.tags span:first-child{background:color-mix(in srgb,var(--c) 12%,transparent);border-color:transparent;color:color-mix(in srgb,var(--c) 70%,var(--tx))}
.more{color:var(--pr);font-weight:650;font-size:.92rem}
.cta-band{margin:56px 0;padding:40px;border-radius:28px;background:linear-gradient(135deg,#1e3a8a,#2563eb 55%,#0d9488);color:#eef4ff}
.cta-band h2,.cta-band strong{color:#fff}.cta-band a:not(.btn){color:#fff}.cta-band .btn{background:#fff;color:#1e3a8a!important}.cta-band .btn-ghost{background:transparent;color:#fff!important;border-color:rgba(255,255,255,.5)}
.cta-band.slim{display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;padding:22px 28px;margin:20px 0 40px}.cta-band.slim p{margin:0}
section{margin:40px 0}
.page>section>div>article:not(.card),.faq details{background:var(--sf)}
.faq details{border:1px solid var(--bd);border-radius:16px;padding:14px 18px;margin:10px 0}.faq summary{cursor:pointer;font-weight:650}
.crumb a{text-decoration:none;font-weight:600}
.app-hero{display:flex;gap:20px;align-items:center;padding:32px;border-radius:28px;margin:8px 0 24px;background:radial-gradient(90% 140% at 0 0,color-mix(in srgb,var(--c) 18%,transparent),transparent 65%),var(--sf);border:1px solid var(--bd)}
.app-hero .ico{width:84px;height:84px;border-radius:24px}.app-hero .ico svg{width:44px;height:44px}.app-hero h1{margin:0}.app-hero p{margin:0;color:var(--mu)}.app-hero p:first-child{font-weight:700;font-size:.8rem;text-transform:uppercase;letter-spacing:.08em}
.app-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:18px}@media(max-width:820px){.app-grid{grid-template-columns:1fr}.app-hero{flex-direction:column;align-items:flex-start}}
.panel{background:var(--sf);border:1px solid var(--bd);border-radius:var(--r);padding:24px;box-shadow:var(--sh)}.panel.side>p:first-child{font-size:.78rem;text-transform:uppercase;font-weight:700;color:var(--mu);margin:0}.panel.side>p:nth-child(2){font-size:1.2rem;font-weight:750;margin:.2em 0 1em}
.panel.side div a{display:inline-block;margin:0 6px 6px 0;padding:6px 12px;border-radius:999px;border:1px solid var(--bd);text-decoration:none;font-weight:600;font-size:.9rem}
dl div{display:flex;gap:10px}dt{font-weight:700}dd{margin:0;color:var(--mu)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:18px}.two>div{background:var(--sf);border:1px solid var(--bd);border-radius:var(--r);padding:24px}@media(max-width:820px){.two{grid-template-columns:1fr}}
.two ul,.panel ul{padding-left:1.1em}.two li::marker{color:var(--pr)}
.notice{padding:14px 18px;border-radius:14px;background:#fff7e6;color:#5c3d00;border:1px solid #f3d38a;margin:0 0 20px}
@media(prefers-color-scheme:dark){.notice{background:#2c2208;color:#fbe3a6;border-color:#5c4712}}
.sponsor{margin:40px 0;padding:24px;border-radius:var(--r);border:1px dashed var(--bd);background:var(--sf)}.sponsor p:first-child{font-size:.78rem;text-transform:uppercase;font-weight:700;color:var(--mu);margin:0}
.related{padding:22px 24px;border-radius:var(--r);background:var(--sf);border:1px solid var(--bd)}
.prose{max-width:820px}.prose section{background:var(--sf);border:1px solid var(--bd);border-radius:var(--r);padding:8px 24px 18px}.prose h2{margin-top:1.8em}.prose nav a{display:inline-block;margin:3px 6px 3px 0;padding:4px 12px;border-radius:999px;background:var(--sf);border:1px solid var(--bd);text-decoration:none;font-size:.9rem}.date{color:var(--mu)}
.page ol{padding-left:1.2em;list-style:none}.page ol li{background:var(--sf);border:1px solid var(--bd);border-radius:14px;padding:12px 16px;margin:8px 0}
.site-footer{border-top:1px solid var(--bd);background:var(--sf);padding:48px 0 24px;margin-top:40px}
.fgrid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}@media(max-width:820px){.fgrid{grid-template-columns:1fr 1fr}}
.fgrid ul{list-style:none;padding:0;margin:0}.fgrid li{margin:6px 0}.fgrid a{color:var(--mu);text-decoration:none}.fgrid a:hover{color:var(--tx)}.fh{font-weight:750;margin:0 0 8px}.copy{color:var(--mu);font-size:.85rem;margin-top:32px}
img{max-width:100%;height:auto}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}