.chalk-page{isolation:isolate;color:#f0f5f4;background:#041014;min-height:100svh;font-family:Arial,Helvetica,sans-serif;position:relative;overflow:hidden}.chalk-page a{color:inherit;text-decoration:none}.chalk-page button{font:inherit;touch-action:pan-y;cursor:pointer}.chalk-page a:focus-visible,.chalk-page button:focus-visible{outline-offset:8px;border-radius:2px;outline:2px solid #7ad3bd}.chalk-background{z-index:-1;pointer-events:none;position:absolute;inset:0;overflow:hidden}.chalk-background img{-o-object-fit:cover;object-fit:cover;-o-object-position:30% center;object-position:30% center;opacity:.27;filter:grayscale();position:fixed!important}.chalk-background>div{background:linear-gradient(#04101410,#04101455 35%,#041014d9 100%),linear-gradient(90deg,#04101415,#04101475);position:absolute;inset:0}.chalk-nav{color:#b0c5be;justify-content:space-between;align-items:center;padding:26px 4%;font-size:11px;display:flex}.chalk-nav a{align-items:center;gap:8px;display:flex}.chalk-nav .chalk-brand{gap:5px;font-size:19px;font-weight:700}.chalk-brand span{color:#59bba7}.chalk-section{flex-direction:column;justify-content:center;min-height:calc(100svh - 120px);padding:38px 4% 42px;display:flex}.chalk-opening{text-align:center}.chalk-eyebrow{letter-spacing:3px;color:#8baea3;margin:0 0 22px;font-family:monospace;font-size:9px}.chalk-opening h1{letter-spacing:-2px;margin:0;font-size:clamp(40px,4.3vw,66px);font-weight:400;line-height:1.15}.chalk-opening h1 em{color:#a4cfc2;font-style:normal}.chalk-title-stroke{width:min(390px,60%);height:30px;margin:16px auto 0;display:block;overflow:visible}.chalk-title-stroke path{fill:none;stroke:#6db9a4;stroke-width:1px;opacity:.55;stroke-dasharray:500;animation:1.8s ease-out both technical-underline}.chalk-board{-moz-column-gap:7%;grid-template-columns:repeat(3,minmax(0,1fr));column-gap:7%;width:100%;max-width:1700px;margin:38px auto 20px;display:grid;position:relative}.chalk-act{align-self:start;min-width:0;transition:opacity .3s;position:relative}.chalk-act-kicker{letter-spacing:1px;color:#a9bfb5;text-transform:uppercase;justify-content:center;align-items:center;gap:14px;margin:0 0 14px;font-size:10px;display:flex}.chalk-act-kicker span{color:#70b29e;font-family:monospace;font-size:11px}.chalk-drawing{width:100%;color:inherit;box-shadow:none;background:0 0;border:0;padding:0;transition:filter .3s;display:block}.chalk-sketch{width:100%;height:auto;display:block;overflow:visible}.chalk-ink{fill:none;stroke:#d7e9e2;stroke-width:1.15px;stroke-linecap:square;stroke-linejoin:miter}.chalk-accent{stroke:#7ac8b2;stroke-width:1.5px}.technical-guides{fill:none;stroke:#86a89a;stroke-width:.65px;opacity:.3}.chalk-sketch text{letter-spacing:1px;fill:#c4d9cf;font-family:Arial,Helvetica,sans-serif;font-size:11px;font-weight:400}.chalk-sketch .technical-name{letter-spacing:1.8px;fill:#c5f1e0;font-size:14px}.chalk-sketch .technical-note{letter-spacing:.25px;fill:#84a89a;font-size:9px}.chalk-act h2{text-align:center;letter-spacing:-.7px;min-height:62px;margin:16px 0 12px;font-size:clamp(21px,1.85vw,28px);font-weight:400;line-height:1.25}.chalk-act-summary{text-align:center;color:#8faea0;max-width:310px;min-height:44px;margin:0 auto;font-size:12px;line-height:1.8}.chalk-focused .chalk-drawing{filter:drop-shadow(0 0 7px #83c8ab30)}.chalk-focused h2{color:#b9e4d1}.chalk-muted{opacity:.55}.chalk-bridge{fill:none;stroke:#72ae98;stroke-width:1px;stroke-linecap:square;stroke-linejoin:miter;width:24%;height:70px;position:absolute;top:38%;right:-27%;overflow:visible}.chalk-bridge-light{stroke:#bbe3d3;stroke-width:2px;stroke-dasharray:.12 .88;animation:5s linear infinite technical-flow}.chalk-inline-example{text-align:center;color:#a7cdbc;max-width:330px;min-height:70px;margin:14px auto 0;font-size:11px;line-height:1.7}.chalk-inline-example p{margin:0}.chalk-example{text-align:center;color:#b8cec2;justify-content:center;align-items:center;max-width:700px;min-height:55px;margin:12px auto 0;font-size:13px;line-height:1.75;display:flex}.chalk-example p{margin:0}.chalk-hint{text-align:center;letter-spacing:1px;color:#678b79;margin:12px 0 0;font-family:monospace;font-size:8px}.chalk-footer{letter-spacing:.8px;color:#5f8270;border-top:1px solid #7ccbaa13;justify-content:space-between;padding:22px 4%;font-family:monospace;font-size:8px;display:flex}.chalk-board[data-moving=false] .chalk-bridge-light{animation-play-state:paused}@keyframes technical-flow{0%{stroke-dashoffset:1px}to{stroke-dashoffset:0}}@keyframes technical-underline{0%{stroke-dashoffset:500px}to{stroke-dashoffset:0}}@media (min-width:1600px){.chalk-section{padding-top:50px;padding-bottom:60px}.chalk-board{margin-top:45px}.chalk-act-summary{max-width:350px;font-size:14px}}@media (max-width:1000px) and (min-width:801px){.chalk-act h2{font-size:21px}.chalk-act-summary{font-size:11px}.chalk-section{padding-left:3%;padding-right:3%}.chalk-board{-moz-column-gap:6%;column-gap:6%}}@media (max-width:800px){.chalk-nav{padding:24px 6%}.chalk-nav a{font-size:9px}.chalk-nav .chalk-brand{font-size:17px}.chalk-section{padding:38px 7% 45px}.chalk-opening h1{letter-spacing:-1px;font-size:clamp(32px,6vw,46px)}.chalk-eyebrow{letter-spacing:2px;font-size:8px}.chalk-title-stroke{width:75%;margin-top:14px}.chalk-board{grid-template-columns:1fr;gap:70px;max-width:440px;margin-top:42px}.chalk-drawing{max-width:370px;margin:auto}.chalk-act-kicker{margin-bottom:12px;font-size:9px}.chalk-act h2{white-space:normal;min-height:0;margin-top:18px;font-size:25px}.chalk-act-summary{max-width:330px;min-height:0;font-size:12px}.chalk-bridge{width:80px;height:55px;top:auto;bottom:-55px;right:calc(50% - 40px);rotate:90deg}.chalk-inline-example{max-width:310px;min-height:64px;margin-top:13px;font-size:11px}.chalk-example{min-height:67px;margin-top:32px;font-size:12px}.chalk-hint{letter-spacing:.4px;font-size:7px;line-height:1.8}.chalk-footer{letter-spacing:.3px;padding:20px 6%;font-size:7px}.chalk-sketch text{font-size:11px}.chalk-ink{stroke-width:1.35px}.chalk-accent{stroke-width:1.6px}}@media (max-width:380px){.chalk-section{padding-left:6%;padding-right:6%}.chalk-act h2{font-size:23px}.chalk-act-summary{font-size:11px}}@media (prefers-reduced-motion:reduce){.chalk-page *{scroll-behavior:auto!important;transition:none!important;animation:none!important}}