@font-face{font-family:Bebas Neue;font-style:normal;font-weight:400;font-display:swap;src:url(/fonts/bebas-neue-latin.woff2) format("woff2")}@font-face{font-family:DM Mono;font-style:normal;font-weight:400;font-display:swap;src:url(/fonts/dm-mono-400-latin.woff2) format("woff2")}@font-face{font-family:DM Mono;font-style:normal;font-weight:500;font-display:swap;src:url(/fonts/dm-mono-500-latin.woff2) format("woff2")}@font-face{font-family:DM Sans;font-style:normal;font-weight:400 700;font-display:swap;src:url(/fonts/dm-sans-normal-latin.woff2) format("woff2")}:root{--black:#080808;--bg2:#0d0d0d;--card:#111214;--card-hi:#16181b;--dim:#1c1d20;--hair:#1a1a1a;--white:#f4f1ec;--mid:#b3b1ab;--muted:#8a8a86;--subtle:#5a5a57;--accent:#c8ff00;--accent-rgb:200,255,0;--on-accent:#090909;--gutter:max(18px, calc((100vw - 1120px)/2) 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Mono,monospace;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--white);white-space:nowrap;transition:color .15s}.pv-login:hover{color:var(--accent)}.pv-buy{min-height:44px;border:1px solid var(--accent);background:var(--accent);color:var(--on-accent);font-family:DM Mono,monospace;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;padding:9px 16px;white-space:nowrap;transition:background .15s,transform .12s}.pv-buy:hover:not(:disabled){background:#d8ff22;transform:translateY(-1px)}.pv-buy:disabled{opacity:.62;cursor:wait}.pv-buy-status{position:fixed;top:72px;right:18px;z-index:110;max-width:min(380px,calc(100vw - 36px));background:#22120f;border:1px solid #66362d;color:#ffd7cf;padding:10px 13px;font-size:12px;line-height:1.45}.pv-buy-status[hidden]{display:none}main{min-height:70vh}.pv-shell{width:min(1120px,calc(100% - 36px));margin-inline:auto}.pv-section{padding:clamp(56px,9vw,104px) 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var(--dim);background:var(--bg2);padding:28px var(--gutter) 36px;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;font-family:DM Mono,monospace;font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}.pv-foot nav{display:flex;gap:8px 18px;flex-wrap:wrap}.pv-foot a{display:inline-flex;align-items:center;justify-content:center;min-width:44px;min-height:44px}.pv-foot a:hover{color:var(--pv-accent)}noscript .pv-noscript{margin:12px auto;padding:10px 14px;width:min(720px,calc(100% - 36px));background:#241f10;border:1px solid #62582a;color:#f0e5ac;font-size:12px}@media(max-width:720px){.pv-top{padding-inline:14px}.pv-brand strong{font-size:10px;letter-spacing:.1em}.pv-actions{gap:10px}.pv-login{font-size:10px}.pv-shell{width:min(100% - 28px,1120px)}.pv-section{padding:48px 0}.pv-title{font-size:clamp(36px,12vw,54px)}.pv-foot{padding-bottom:calc(28px + env(safe-area-inset-bottom,0px));flex-direction:column}}@media(max-width:420px){.pv-brand span{display:none}.pv-buy{padding:9px 12px;font-size:10px;letter-spacing:.04em}}.readbar[data-astro-cid-roirxtih]{position:fixed;top:60px;left:0;height:2px;width:0;background:var(--pv-accent);z-index:102;transition:width .08s linear}.lesson-context[data-astro-cid-roirxtih]{position:sticky;top:60px;z-index:75;min-height:48px;padding:0 var(--pv-gutter);display:flex;align-items:center;justify-content:space-between;gap:18px;background:#0d0d0df5;border-bottom:1px solid var(--pv-line);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.lesson-context[data-astro-cid-roirxtih] a[data-astro-cid-roirxtih],.lesson-context[data-astro-cid-roirxtih] span[data-astro-cid-roirxtih]{font-family:DM Mono,monospace;font-size:9px;letter-spacing:.08em;text-transform:uppercase;color:var(--pv-muted)}.lesson-context[data-astro-cid-roirxtih] a[data-astro-cid-roirxtih]:hover{color:var(--pv-accent)}.lesson-shell[data-astro-cid-roirxtih]{width:min(1100px,calc(100% - 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18px;margin-bottom:18px;border:1px solid var(--pv-line);border-left:3px solid var(--pv-accent);background:rgba(var(--pv-accent-rgb),.05)}.example[data-astro-cid-roirxtih]{border-left-color:#69a7ff;background:#10151c}.callout[data-astro-cid-roirxtih]>span[data-astro-cid-roirxtih],.example[data-astro-cid-roirxtih]>span[data-astro-cid-roirxtih]{display:block;font-family:DM Mono,monospace;font-size:9px;letter-spacing:.12em;text-transform:uppercase;color:var(--pv-accent);margin-bottom:5px}.example[data-astro-cid-roirxtih]>span[data-astro-cid-roirxtih]{color:#89bbff}.callout[data-astro-cid-roirxtih] p[data-astro-cid-roirxtih],.example[data-astro-cid-roirxtih] p[data-astro-cid-roirxtih]{margin:0;color:var(--pv-white);font-size:14px;line-height:1.65}.formula[data-astro-cid-roirxtih]{font-family:DM Mono,monospace;font-size:13px;color:var(--pv-accent);background:var(--pv-bg);border:1px solid var(--pv-line);padding:13px 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26px;display:flex;align-items:center;justify-content:center;background:rgba(var(--pv-accent-rgb),.12);color:var(--pv-accent);font-family:DM Mono,monospace;font-size:11px}.steps[data-astro-cid-roirxtih] p[data-astro-cid-roirxtih]{margin:0;font-size:14px}.lesson-finish[data-astro-cid-roirxtih]{margin-top:48px;padding:clamp(24px,5vw,38px);border:1px solid rgba(var(--pv-accent-rgb),.4);border-top:2px solid var(--pv-accent);background:var(--pv-card)}.lesson-finish[data-astro-cid-roirxtih] h2[data-astro-cid-roirxtih]{font-family:Bebas Neue,sans-serif;font-size:clamp(34px,5vw,52px);line-height:.96}.lesson-finish[data-astro-cid-roirxtih] p[data-astro-cid-roirxtih]{color:var(--pv-mid);margin:9px 0 22px;max-width:650px}.lesson-finish[data-astro-cid-roirxtih]>div[data-astro-cid-roirxtih]{display:flex;gap:12px;flex-wrap:wrap}.lesson-finish[data-astro-cid-roirxtih] .pv-buy[data-astro-cid-roirxtih]{min-height:48px}.lesson-toc[data-astro-cid-roirxtih]{position:sticky;top:128px;max-height:calc(100vh - 154px);overflow:auto;padding-top:56px}.lesson-toc[data-astro-cid-roirxtih]>span[data-astro-cid-roirxtih]{display:block;font-family:DM Mono,monospace;font-size:9px;letter-spacing:.14em;text-transform:uppercase;color:var(--pv-muted);padding-bottom:9px;border-bottom:1px solid var(--pv-line)}.lesson-toc[data-astro-cid-roirxtih] a[data-astro-cid-roirxtih]{display:block;border-left:2px solid var(--pv-line);padding:6px 0 6px 10px;font-size:11px;line-height:1.35;color:var(--pv-muted)}.lesson-toc[data-astro-cid-roirxtih] a[data-astro-cid-roirxtih].sub{padding-left:20px}.lesson-toc[data-astro-cid-roirxtih] a[data-astro-cid-roirxtih]:hover,.lesson-toc[data-astro-cid-roirxtih] a[data-astro-cid-roirxtih].active{color:var(--pv-accent);border-left-color:var(--pv-accent)}@media(max-width:1000px){.lesson-shell[data-astro-cid-roirxtih]{grid-template-columns:minmax(0,760px)}.lesson-toc[data-astro-cid-roirxtih]{display:none}}@media(max-width:620px){.lesson-context[data-astro-cid-roirxtih]{padding-inline:14px;overflow-x:auto;justify-content:flex-start;min-height:48px}.lesson-context[data-astro-cid-roirxtih]>[data-astro-cid-roirxtih]{white-space:nowrap}.lesson-context[data-astro-cid-roirxtih] span[data-astro-cid-roirxtih]{display:none}.lesson-shell[data-astro-cid-roirxtih]{width:min(100% - 28px,760px)}.lesson[data-astro-cid-roirxtih]{padding-top:36px}.lesson-head[data-astro-cid-roirxtih] h1[data-astro-cid-roirxtih]{font-size:clamp(40px,14vw,58px)}.lesson-body[data-astro-cid-roirxtih]{font-size:15.5px}.lesson-finish[data-astro-cid-roirxtih]>div[data-astro-cid-roirxtih]{flex-direction:column}.lesson-finish[data-astro-cid-roirxtih] .pv-primary[data-astro-cid-roirxtih],.lesson-finish[data-astro-cid-roirxtih] .pv-buy[data-astro-cid-roirxtih]{width:100%;text-align:center}}