:root{--brand-primary: #1a5c6e;--brand-primary-hover: #0f3d4a;--brand-primary-muted: rgba(26, 92, 110, .1);--brand-primary-ring: rgba(26, 92, 110, .35);--brand-accent: #c8924a;--brand-accent-muted: rgba(200, 146, 74, .12);--c-ink: #1a1a1a;--c-ink-soft: #5a5a5a;--c-mute: #9a9a9a;--c-paper: #f6f4ef;--c-hairline: #e6e2da;--c-sink: #2f4159;--c-cooperative: #2c5f4f;--c-adversarial: #8b3a2f;--c-faucet: #c8924a;--c-surface: #ffffff;--c-text: var(--c-ink);--c-text-soft: var(--c-ink-soft);--c-text-mute: var(--c-mute);--c-border: var(--c-hairline);--c-bg: var(--c-paper);--font-display: "Source Serif 4", "Charter", "Georgia", "Times New Roman", serif;--font-body: "Inter", "Helvetica Neue", "Arial", system-ui, sans-serif;--font-sans: "Inter", "Helvetica Neue", "Arial", system-ui, sans-serif;--font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;--fs-display-xl: 2.75rem;--fs-display-lg: 2rem;--fs-display-md: 1.5rem;--fs-display-sm: 1.25rem;--fs-body-lg: 1.125rem;--fs-body: 1rem;--fs-body-sm: .875rem;--fs-caption: .75rem;--fs-chrome: .8125rem;--lh-tight: 1.2;--lh-display: 1.15;--lh-body: 1.6;--ease-standard: cubic-bezier(.4, 0, .2, 1);--ease-out: cubic-bezier(0, 0, .2, 1);--dur-quick: .12s;--dur-fast: .2s;--dur-annotate: .35s;--dur-reveal: .6s;--dur-stagger: .1s;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 24px;--space-6: 32px;--space-8: 48px;--space-10: 64px;--radius-sm: 4px;--radius-md: 8px;--brand-prose-maxw: 640px;--brand-figure-maxw: 1100px;--brand-topbar-h: 56px;--scrolly-step-border-w: 2px;--scrolly-step-active-bg: var(--brand-primary-muted)}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--c-bg);color:var(--c-text);font-family:var(--font-body);font-size:var(--fs-body);line-height:var(--lh-body);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}a{color:var(--brand-primary);text-decoration:underline;text-underline-offset:.15em;text-decoration-thickness:.075em;text-decoration-color:var(--c-border);transition:color var(--dur-quick) var(--ease-standard),text-decoration-color var(--dur-quick) var(--ease-standard)}a:hover{color:var(--brand-primary-hover);text-decoration-color:var(--brand-primary)}a:focus-visible{outline:2px solid var(--brand-primary);outline-offset:2px;border-radius:var(--radius-sm)}h1,h2,h3{font-family:var(--font-display);font-weight:600;letter-spacing:-.01em;line-height:var(--lh-display);margin:0 0 .5em}h1{font-size:var(--fs-display-xl)}h2{font-size:var(--fs-display-lg);margin-top:1.5em}h3{font-size:var(--fs-display-md);margin-top:1.2em}h4,h5,h6{font-family:var(--font-sans);font-weight:600;letter-spacing:0}p{margin:0 0 1em;max-width:var(--brand-prose-maxw)}code,.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums}.page{max-width:var(--brand-figure-maxw);margin:0 auto;padding:2rem 1.5rem 6rem}.eyebrow{font-family:var(--font-mono);font-size:var(--fs-caption);letter-spacing:.08em;text-transform:uppercase;color:var(--c-mute);margin-bottom:.75rem}.lede{font-size:var(--fs-body-lg);color:var(--c-ink-soft);max-width:var(--brand-prose-maxw);margin-bottom:2.5rem;line-height:1.55}.btn{display:inline-flex;align-items:center;gap:.4em;padding:.65rem 1.5rem;border-radius:var(--radius-sm);font-family:var(--font-sans);font-size:var(--fs-chrome);font-weight:500;line-height:1;text-decoration:none;cursor:pointer;border:1px solid transparent;transition:background var(--dur-quick) var(--ease-standard),color var(--dur-quick) var(--ease-standard),border-color var(--dur-quick) var(--ease-standard),transform var(--dur-quick) var(--ease-standard)}.btn:active{transform:scale(.97)}.btn--primary{background:var(--brand-primary);color:#fff;border-color:var(--brand-primary)}.btn--primary:hover{background:var(--brand-primary-hover);border-color:var(--brand-primary-hover);color:#fff}.btn--outline{background:transparent;color:var(--brand-primary);border-color:var(--c-border)}.btn--outline:hover{border-color:var(--brand-primary);background:var(--brand-primary-muted)}.btn--ghost{background:transparent;color:var(--brand-primary);border-color:transparent;padding:.65rem .75rem}.btn--ghost:hover{background:var(--brand-primary-muted)}.btn--arrow:after{content:"→";transition:transform var(--dur-quick) var(--ease-standard)}.btn--arrow:hover:after{transform:translate(3px)}.scrolly{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.3fr);gap:2.5rem;margin:3rem 0;align-items:start}.scrolly__prose{display:flex;flex-direction:column;gap:70vh;padding-top:25vh;padding-bottom:25vh}.scrolly__step{min-height:30vh;padding:1.25rem 1.5rem;border-left:var(--scrolly-step-border-w) solid var(--c-border);background:#e6e2da2e;transition:border-color var(--dur-annotate) var(--ease-standard),background var(--dur-annotate) var(--ease-standard)}.scrolly__step.is-active{border-left-color:var(--brand-primary);background:var(--scrolly-step-active-bg)}.scrolly__sticky{position:sticky;top:8vh;height:84vh;display:flex;flex-direction:column}@media(max-width:800px){.scrolly{grid-template-columns:1fr}.scrolly__sticky{position:relative;top:0;height:auto;order:-1}.scrolly__prose{gap:2rem;padding-top:0;padding-bottom:0}.scrolly__step{min-height:0}}.caption{font-family:var(--font-sans);font-style:italic;font-size:var(--fs-caption);color:var(--c-mute);margin-top:.5rem}.footer{border-top:1px solid var(--c-border);padding:1.25rem 1.5rem;font-family:var(--font-sans);font-size:var(--fs-caption);color:var(--c-mute)}.footer__inner{max-width:var(--brand-figure-maxw);margin:0 auto;display:flex;justify-content:space-between;align-items:baseline}.footer__link{color:var(--c-ink-soft);text-decoration:underline;text-underline-offset:.15em;text-decoration-thickness:.075em;text-decoration-color:var(--c-border)}.footer__link:hover{color:var(--brand-primary);text-decoration-color:var(--brand-primary)}.topbar{border-bottom:1px solid var(--c-border);padding:.875rem 1.5rem;display:flex;justify-content:space-between;align-items:center;font-family:var(--font-sans);font-size:var(--fs-chrome);color:var(--c-ink-soft);letter-spacing:.02em;min-height:var(--brand-topbar-h)}.topbar__brand{color:var(--c-ink);font-family:var(--font-display);font-weight:600;font-size:1.125rem;letter-spacing:-.01em;text-decoration:none}.topbar__brand:hover{color:var(--brand-primary)}.topbar__nav{display:flex;align-items:center;gap:1rem;font-size:var(--fs-caption)}.topbar__nav a{color:var(--c-ink-soft);text-decoration:none;font-weight:500;transition:color var(--dur-quick) var(--ease-standard)}.topbar__nav a:hover{color:var(--c-ink)}.topbar__nav .topbar__cta{padding:.3rem .75rem;border:1px solid var(--c-border);border-radius:var(--radius-sm);color:var(--brand-primary);border-color:var(--brand-primary)}.topbar__nav .topbar__cta:hover{background:var(--brand-primary);color:#fff}@media(max-width:600px){.topbar__nav{gap:.5rem}.topbar__nav a:not(.topbar__cta):nth-child(2),.topbar__nav a:not(.topbar__cta):nth-child(3){display:none}}.hl{color:var(--brand-primary)}.hl-gold{color:var(--brand-accent)}[data-animate]{opacity:0;will-change:opacity,transform}[data-animate].in-view{opacity:1;transform:none}[data-animate=fade-up]{transform:translateY(24px)}[data-animate=fade-up].in-view{transition:opacity var(--dur-reveal) var(--ease-out),transform var(--dur-reveal) var(--ease-out)}[data-animate=fade-in].in-view{transition:opacity var(--dur-reveal) var(--ease-out)}[data-animate=scale-in]{transform:scale(.96)}[data-animate=scale-in].in-view{transition:opacity var(--dur-reveal) var(--ease-out),transform var(--dur-reveal) var(--ease-out)}[data-animate=stagger]>*{opacity:0;transform:translateY(16px);transition:opacity var(--dur-annotate) var(--ease-out),transform var(--dur-annotate) var(--ease-out)}[data-animate=stagger].in-view>*{opacity:1;transform:none}[data-animate=stagger].in-view>*:nth-child(1){transition-delay:0s}[data-animate=stagger].in-view>*:nth-child(2){transition-delay:calc(var(--dur-stagger) * 1)}[data-animate=stagger].in-view>*:nth-child(3){transition-delay:calc(var(--dur-stagger) * 2)}[data-animate=stagger].in-view>*:nth-child(4){transition-delay:calc(var(--dur-stagger) * 3)}[data-animate=stagger].in-view>*:nth-child(5){transition-delay:calc(var(--dur-stagger) * 4)}[data-animate=stagger].in-view>*:nth-child(6){transition-delay:calc(var(--dur-stagger) * 5)}[data-animate=stagger].in-view>*:nth-child(7){transition-delay:calc(var(--dur-stagger) * 6)}[data-animate=stagger].in-view>*:nth-child(8){transition-delay:calc(var(--dur-stagger) * 7)}@media(prefers-reduced-motion:reduce){[data-animate],[data-animate]>*{opacity:1!important;transform:none!important;transition:none!important}.scrolly__step{transition:none!important}*,*:before,*:after{transition-duration:.01ms!important;animation-duration:.01ms!important}}.control{display:flex;flex-direction:column;gap:.4rem;padding:1rem 1.25rem;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-sm);margin-top:1rem}.control__label{font-family:var(--font-mono);font-size:var(--fs-caption);color:var(--c-ink-soft);display:flex;justify-content:space-between;align-items:baseline}.control__label strong{font-weight:600;color:var(--c-ink)}.control__hint{font-size:var(--fs-caption);color:var(--c-mute)}input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:4px;background:var(--c-border);border-radius:2px;outline:none;margin:.5rem 0}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:18px;height:18px;background:var(--brand-primary);border-radius:50%;cursor:pointer;transition:transform var(--dur-quick) var(--ease-out)}input[type=range]:focus-visible::-webkit-slider-thumb,input[type=range]:hover::-webkit-slider-thumb{transform:scale(1.15)}input[type=range]::-moz-range-thumb{width:18px;height:18px;background:var(--brand-primary);border:none;border-radius:50%}input[type=range]:focus-visible{outline:2px solid var(--brand-primary-ring);outline-offset:4px;border-radius:2px}