:root{--a1:#22c55e;--a2:#06b6d4;--a3:#8b5cf6;--grad:linear-gradient(120deg,var(--a1),var(--a2) 45%,var(--a3))}
#prog{position:fixed;top:0;left:0;height:3px;width:100%;transform-origin:0 50%;transform:scaleX(0);background:var(--grad);z-index:60}
.bhero{position:relative;margin:0 -24px;padding:56px 24px 48px;border-bottom:1px solid var(--g2);overflow:hidden}
.bhero:before{content:"";position:absolute;inset:-40% -10% auto;height:140%;background:radial-gradient(40% 50% at 20% 30%,rgba(34,197,94,.16),transparent 70%),radial-gradient(35% 45% at 80% 20%,rgba(139,92,246,.14),transparent 70%),radial-gradient(30% 40% at 60% 80%,rgba(6,182,212,.12),transparent 70%);pointer-events:none}
.bhero .w2{position:relative;max-width:860px}
.bhero .crumb{margin:0 0 18px}
.tagpill{display:inline-flex;gap:6px;align-items:center;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;padding:6px 12px;border-radius:999px;border:1px solid var(--l);background:var(--bg)}
.tagpill .i{color:var(--a1)}
.bhero h1{font-size:clamp(38px,6.2vw,68px)!important;line-height:1.02!important;letter-spacing:-.045em!important;margin:18px 0 18px;font-weight:800!important;background:linear-gradient(180deg,var(--fg) 55%,color-mix(in srgb,var(--fg) 60%,transparent));-webkit-background-clip:text;background-clip:text;color:transparent}
.bhero .lede{font-size:clamp(18px,2.1vw,22px);max-width:720px}
.chip{display:inline-flex;align-items:center;gap:14px;margin-top:26px;padding:8px 18px 8px 8px;border:1px solid var(--l);border-radius:999px;background:var(--bg);font-size:14px;box-shadow:0 10px 30px var(--sh)}
.chip img{border-radius:50%;border:1px solid var(--l)}.chip span{display:flex;flex-direction:column;line-height:1.25}.chip small{color:var(--g);font-size:12.5px}.chip i{width:1px;height:28px;background:var(--l)}
.blay{grid-template-columns:minmax(0,1fr) 260px;gap:72px;margin-top:48px}
.bp{font-size:18px;line-height:1.75;max-width:700px}

.bp h2{font-size:clamp(26px,3vw,32px)!important;letter-spacing:-.035em!important;margin-top:64px!important;position:relative}
.bp h2:before{content:"";display:block;width:36px;height:4px;border-radius:4px;background:var(--grad);margin-bottom:16px}
.bp h3{font-size:21px!important}
.bp a{text-decoration-color:color-mix(in srgb,var(--a2) 60%,transparent);text-decoration-thickness:2px}
.bp blockquote.pq{border:0;margin:40px 0;padding:6px 0 6px 28px;position:relative;color:var(--fg)}
.bp blockquote.pq:before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;border-radius:4px;background:var(--grad)}
.bp blockquote.pq p{font-size:clamp(22px,2.6vw,28px);line-height:1.35;font-weight:700;letter-spacing:-.02em;margin:0}
.callout{border:1px solid var(--l);border-radius:18px;padding:18px 20px 18px 56px;margin:28px 0;position:relative;background:linear-gradient(135deg,rgba(6,182,212,.07),rgba(139,92,246,.06))}
.callout:before{content:"i";position:absolute;left:18px;top:18px;width:24px;height:24px;border-radius:8px;display:grid;place-items:center;font:700 13px/1 ui-monospace,monospace;color:#fff;background:var(--a2)}
.callout.tip{background:linear-gradient(135deg,rgba(34,197,94,.09),rgba(6,182,212,.05))}.callout.tip:before{content:"✦";background:var(--a1)}
.callout b{display:block;margin-bottom:4px}.callout p{margin:0;font-size:16px;color:var(--m)}
#key-takeaways+ul{list-style:none;border-radius:20px;padding:22px 24px;background:var(--card);border:1px solid var(--l)}
#key-takeaways+ul li{margin:0 0 12px;padding-left:30px;position:relative}#key-takeaways+ul li:before{content:"";position:absolute;left:0;top:.45em;width:16px;height:16px;border-radius:50%;background:var(--grad);box-shadow:0 0 12px rgba(34,197,94,.4)}
.bp pre{background:#0b0d12!important;color:#e6edf3;border:1px solid #1f2430!important;border-radius:16px!important;padding:18px 20px!important;font-size:14px!important;box-shadow:0 20px 50px rgba(0,0,0,.18);position:relative}
.bp pre:before{content:"";display:block;width:52px;height:10px;margin-bottom:14px;background:radial-gradient(circle,#ff5f57 4px,transparent 5px) 0 0/18px 10px,radial-gradient(circle,#febc2e 4px,transparent 5px) 18px 0/18px 10px,radial-gradient(circle,#28c840 4px,transparent 5px) 36px 0/18px 10px;background-repeat:no-repeat}
.bp :not(pre)>code{background:color-mix(in srgb,var(--a3) 10%,var(--card));border-color:color-mix(in srgb,var(--a3) 25%,var(--l))}
.bp .tw{border-radius:16px;box-shadow:0 12px 36px var(--sh)}.bp table{font-size:15px}.bp thead th{background:var(--card)}.bp tbody tr:nth-child(even){background:color-mix(in srgb,var(--card) 55%,transparent)}
.toc.bt{border:1px solid var(--l);border-radius:20px;padding:18px;background:color-mix(in srgb,var(--bg) 85%,transparent);backdrop-filter:blur(8px);box-shadow:0 16px 40px var(--sh)}
.toc.bt b{display:flex;gap:8px;align-items:center}
.toc.bt nav a{display:flex;gap:10px;padding:7px 8px;border-radius:10px;font-size:13.5px}.toc.bt nav a span{font:600 11px/1.9 ui-monospace,monospace;color:var(--g)}
.toc.bt nav a:hover{background:var(--card)}.toc.bt nav a.on{background:var(--card);color:var(--fg)}.toc.bt nav a.on span{color:var(--a1)}
.tocup{display:flex!important;gap:6px;align-items:center;margin-top:10px;padding:8px!important;font-size:12.5px!important;color:var(--g)!important;border-top:1px solid var(--g2)}
.endcta{position:relative;overflow:hidden;text-align:center;border-radius:28px;padding:48px 24px;margin:64px 0 0;border:1px solid var(--l);background:var(--card)}
.endcta .glow{position:absolute;inset:-50%;background:conic-gradient(from 90deg,rgba(34,197,94,.22),rgba(6,182,212,.18),rgba(139,92,246,.22),rgba(34,197,94,.22));filter:blur(60px);animation:spin 18s linear infinite}
@keyframes spin{to{transform:rotate(1turn)}}
.endcta>*:not(.glow){position:relative}
.endcta h2{margin:0 0 8px!important;font-size:clamp(28px,3.4vw,38px)!important}.endcta h2:before{display:none!important}.endcta p{color:var(--m);max-width:460px;margin:0 auto 22px}
.endcta .row{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}.endcta .btn{text-decoration:none}
.rel{margin:72px 0 40px}.rel h2{font-size:28px;letter-spacing:-.03em;margin-bottom:20px}
.rgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px}
.rcard{display:flex;flex-direction:column;gap:8px;padding:22px;border-radius:20px;border:1px solid var(--l);text-decoration:none;background:var(--bg);position:relative;transition:transform .2s,box-shadow .2s}
.rcard:before{content:"";position:absolute;inset:0 0 auto;height:4px;border-radius:20px 20px 0 0;background:var(--grad);opacity:.8}
.rcard:hover{transform:translateY(-4px);box-shadow:0 20px 50px var(--sh)}.rcard h3{font-size:19px;line-height:1.3;letter-spacing:-.02em}.rcard p{color:var(--m);font-size:14.5px;flex:1}.rcard .go{display:inline-flex;gap:6px;align-items:center;font-weight:600;font-size:14px}
@media(max-width:900px){.blay{grid-template-columns:minmax(0,1fr)}.bp{font-size:17px}.chip{flex-wrap:wrap;border-radius:18px}}
@media(prefers-reduced-motion:reduce){.endcta .glow{animation:none}}