:root{--bg:#0a0d14;--panel:#101521;--line:#1e2638;--txt:#e8edf7;--mut:#8e9ab1;--cy:#38d6f5;--pu:#a78bfa;--gr:#34d399;--am:#fbbf24;--grad:linear-gradient(90deg,#38d6f5,#a78bfa);color-scheme:dark}
*{box-sizing:border-box;margin:0}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{background:var(--bg);color:var(--txt);font:400 1.0625rem/1.65 Inter,system-ui,sans-serif;-webkit-font-smoothing:antialiased;
background-image:linear-gradient(#ffffff06 1px,transparent 1px),linear-gradient(90deg,#ffffff06 1px,transparent 1px);background-size:48px 48px}
a{color:inherit;text-decoration:none}
:focus-visible{outline:2px solid var(--cy);outline-offset:3px;border-radius:6px}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.mono{font-family:"JetBrains Mono",ui-monospace,monospace}
header{position:sticky;top:0;z-index:20;background:#0a0d14d9;backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
header .wrap{display:flex;align-items:center;gap:28px;height:64px}
.logo{display:block;background:#0a0d14;border-radius:10px;padding:5px 12px}.logo img{height:26px;display:block}
nav{display:flex;gap:24px;margin-left:auto;font-size:.95rem;color:var(--mut)}
nav a:hover{color:var(--txt)}
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 20px;border-radius:10px;font-weight:700;font-size:.95rem;border:1px solid var(--line);transition:transform .15s,border-color .15s}
.btn:hover{transform:translateY(-2px);border-color:var(--cy)}
.btn.main{background:var(--grad);color:#07101c;border:0}
header .btn{padding:8px 16px}
.hero{padding:88px 0 72px;display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center}
h1{font-size:clamp(2.4rem,5.4vw,4rem);line-height:1.05;font-weight:800;letter-spacing:-.03em}
h1 span,.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{color:var(--mut);margin:22px 0 32px;max-width:46ch;font-size:1.15rem}
.cta{display:flex;gap:12px;flex-wrap:wrap}
.term{--line:#1e2638;--mut:#8e9ab1;--cy:#38d6f5;--pu:#a78bfa;--gr:#34d399;--txt:#e8edf7;background:#0c111c;border:1px solid var(--line);border-radius:14px;box-shadow:0 30px 80px -30px #38d6f555;overflow:hidden}
.bar{display:flex;gap:7px;padding:12px 16px;border-bottom:1px solid var(--line);align-items:center}
.bar i{width:11px;height:11px;border-radius:50%;background:#2a3348}
.bar em{margin-left:auto;font:.78rem "JetBrains Mono",monospace;color:var(--mut);font-style:normal}
.out{padding:18px 20px;min-height:236px;font:.88rem/1.8 "JetBrains Mono",monospace;color:#b9c4da;white-space:pre-wrap}
.out .p{color:var(--pu)}.out .ok{color:var(--gr)}.out .c{color:var(--cy)}.out .d{color:#5d6a85}
.stages{display:grid;grid-template-columns:repeat(5,1fr);border-top:1px solid var(--line)}
.stages div{padding:11px 0;text-align:center;font:.74rem "JetBrains Mono",monospace;color:#4d5a75;border-right:1px solid var(--line);transition:.3s}
.stages div:last-child{border:0}
.stages .on{color:var(--gr);background:#34d3991a}
section{padding:80px 0;border-top:1px solid var(--line)}
h2{font-size:clamp(1.8rem,3.6vw,2.6rem);line-height:1.15;letter-spacing:-.025em;font-weight:800;max-width:20ch}
.lead{color:var(--mut);margin-top:14px;max-width:56ch}
.vids{display:grid;grid-template-columns:1.4fr 1fr;gap:28px;margin-top:40px}
.vid{display:block;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:var(--panel);transition:border-color .2s}
.vid:hover{border-color:var(--cy)}
.vid img{width:100%;display:block;aspect-ratio:16/9;object-fit:cover}
.vid div{padding:18px 22px}
.vid h3{font-size:1.2rem}.vid p{color:var(--mut);font-size:.95rem}
.soon{display:flex;flex-direction:column;border:1px dashed #2a3550;border-radius:16px}
.soon li{list-style:none;padding:18px 22px;border-bottom:1px dashed #2a3550}
.soon li:last-child{border:0}
.soon b{display:block}.soon span{color:var(--mut);font-size:.92rem}
.soon h3{padding:18px 22px 0;font-size:.95rem;color:var(--mut);font-weight:500}
.topics{margin-top:40px;border-top:1px solid var(--line)}
.topics div{display:grid;grid-template-columns:200px 1fr auto;gap:24px;padding:22px 0;border-bottom:1px solid var(--line);align-items:baseline}
.topics b{font-size:1.15rem}.topics span{color:var(--mut)}
.topics code{font:.8rem "JetBrains Mono",monospace;color:var(--cy)}
.road{margin-top:40px;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.steps{border-left:2px solid var(--line);padding-left:0}
.step{position:relative;padding:0 0 0 28px}
.step::before{content:"";position:absolute;left:-7px;top:19px;width:12px;height:12px;border-radius:50%;background:var(--bg);border:2px solid #3a4666;transition:.2s}
.step.open::before{border-color:var(--cy);background:var(--cy)}
.step button{all:unset;cursor:pointer;display:flex;gap:12px;width:100%;padding:12px 0;font-weight:700;font-size:1.05rem;box-sizing:border-box}
.step button:focus-visible{outline:2px solid var(--cy);border-radius:6px}
.step button small{margin-left:auto;font:400 .78rem "JetBrains Mono",monospace;color:var(--mut)}
.step p{display:none;color:var(--mut);padding:0 0 14px;font-size:.98rem}
.step.open p{display:block}
.sheet{background:var(--panel);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.tabs{display:flex;border-bottom:1px solid var(--line)}
.tabs button{all:unset;cursor:pointer;flex:1;text-align:center;padding:13px 0;font:.85rem "JetBrains Mono",monospace;color:var(--mut)}
.tabs button[aria-selected=true]{color:var(--cy);background:#38d6f512;box-shadow:inset 0 -2px var(--cy)}
.tabs button:focus-visible{outline:2px solid var(--cy);outline-offset:-2px}
.row{all:unset;cursor:pointer;display:block;width:100%;box-sizing:border-box;padding:12px 20px;border-bottom:1px solid var(--line)}
.row:last-child{border:0}.row:hover{background:#ffffff08}
.row:focus-visible{outline:2px solid var(--cy);outline-offset:-2px}
.row code{display:block;font:.88rem "JetBrains Mono",monospace;color:var(--txt)}
.row code::before{content:"$ ";color:var(--pu)}
.row span{font-size:.85rem;color:var(--mut)}
.row.done span{color:var(--gr)}
.about{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.about img{width:100%;border-radius:16px;border:1px solid var(--line)}
.about ul{margin-top:18px;padding-left:20px;color:var(--mut)}
.about li{margin:6px 0}
.final{text-align:center;padding:96px 0}
.final h2{margin:0 auto}.final .lead{margin:14px auto 32px}.final .cta{justify-content:center}
footer{border-top:1px solid var(--line);padding:28px 0;color:var(--mut);font-size:.9rem}
footer .wrap{display:flex;gap:16px;flex-wrap:wrap;justify-content:space-between}
footer a:hover{color:var(--txt)}
@media(max-width:860px){nav a:not(.btn){display:none}.hero,.vids,.road,.about{grid-template-columns:1fr;gap:32px}.hero{padding-top:48px}.topics div{grid-template-columns:1fr;gap:4px}section{padding:56px 0}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

.tog{all:unset;cursor:pointer;width:38px;height:38px;border:1px solid var(--line);border-radius:10px;display:grid;place-items:center;font-size:1.05rem}
.tog:hover{border-color:var(--cy)}.tog:focus-visible{outline:2px solid var(--cy);outline-offset:3px}
[data-theme=light]{--bg:#f6f8fc;--panel:#fff;--line:#dde3ee;--txt:#101828;--mut:#56627a;--cy:#0a7fa0;--pu:#6d3fe0;--gr:#047857;--grad:linear-gradient(90deg,#0891b2,#7c3aed);color-scheme:light}
[data-theme=light] body{background-image:linear-gradient(#0f172a08 1px,transparent 1px),linear-gradient(90deg,#0f172a08 1px,transparent 1px)}
[data-theme=light] header{background:#f6f8fcdd}
[data-theme=light] .btn.main{color:#fff}
[data-theme=light] .soon,[data-theme=light] .soon li{border-color:#c3cce0}
[data-theme=light] .step::before{border-color:#aab4cb}
[data-theme=light] .row:hover{background:#0f172a08}
[data-theme=light] .term{box-shadow:0 30px 80px -30px #0891b266}
.posts a{display:grid;grid-template-columns:130px 1fr;gap:24px;padding:22px 0;border-bottom:1px solid var(--line)}
.posts a:hover h3{color:var(--cy)}.posts time,.posts small{color:var(--mut);font:.82rem "JetBrains Mono",monospace}
.posts h3{font-size:1.2rem;margin-bottom:4px}.posts p{color:var(--mut);font-size:.97rem}
.more{display:inline-block;margin-top:24px;color:var(--cy);font-weight:700}
.nl{margin-top:36px;display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.nl input{font:inherit;color:var(--txt);background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:11px 16px;min-width:min(320px,100%)}
.nl input:focus-visible{outline:2px solid var(--cy)}
.nlmsg{margin-top:12px;min-height:1.6em;color:var(--mut);font-size:.95rem;text-align:center}
.art{max-width:720px;margin:0 auto;padding:64px 24px 40px}
.art h1{font-size:clamp(2rem,4.6vw,3rem)}.meta{color:var(--mut);margin:14px 0 36px;font:.85rem "JetBrains Mono",monospace}
.prose h2{font-size:1.6rem;margin:44px 0 12px;max-width:none}.prose p,.prose li{margin:14px 0;font-size:1.08rem}.prose ul{padding-left:22px}
.prose a{color:var(--cy);text-decoration:underline}
.prose code{font:.9em "JetBrains Mono",monospace;background:var(--panel);border:1px solid var(--line);border-radius:6px;padding:1px 6px}
.prose pre{background:#0c111c;color:#d5ddee;border:1px solid var(--line);border-radius:12px;padding:18px 20px;overflow-x:auto;margin:20px 0;font:.88rem/1.7 "JetBrains Mono",monospace}
.prose pre code{background:none;border:0;padding:0}
.call{border-left:3px solid var(--cy);background:var(--panel);padding:14px 20px;border-radius:0 12px 12px 0;margin:28px 0}
.page{padding:64px 0 24px}
@media(max-width:860px){.posts a{grid-template-columns:1fr;gap:6px}}