:root{color:#171a15;font-synthesis:none;text-rendering:optimizelegibility;--ink:#171a15;--paper:#eceee4;--muted:#6f7568;--line:#171a152e;--acid:#b9e95e;--field:#0d0f0d;background:#eceee4;font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,Helvetica Neue,Arial,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:linear-gradient(#171a1509 1px, transparent 1px), var(--paper);background-size:100% 42px;min-width:320px;min-height:100vh;margin:0}button,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,input:focus-visible{outline-offset:3px;outline:2px solid #e06a49}main{width:min(1440px,100%);margin:0 auto;padding:0 clamp(20px,4vw,64px)}.site-header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;height:76px;display:flex}.brand{color:var(--ink);letter-spacing:-.02em;text-transform:uppercase;align-items:center;gap:10px;font-size:15px;font-weight:700;text-decoration:none;display:inline-flex}.brand-seed{background:var(--ink);border-radius:100% 0;width:20px;height:11px;display:inline-block;transform:rotate(-8deg)}.intro{grid-template-columns:minmax(0,1.2fr) minmax(260px,.8fr);align-items:end;column-gap:clamp(36px,8vw,150px);padding:clamp(62px,9vw,128px) 0 clamp(52px,7vw,92px);display:grid}h1,h2,h3,p{margin-top:0}h1{letter-spacing:-.075em;max-width:780px;margin-bottom:0;font-family:Georgia,Times New Roman,serif;font-size:clamp(66px,10vw,148px);font-weight:400;line-height:.82}.intro-copy{letter-spacing:-.025em;max-width:430px;margin:0 0 5px;font-size:clamp(17px,1.8vw,23px);line-height:1.45}.guide{border-top:1px solid var(--ink);grid-template-columns:minmax(170px,218px) minmax(0,1fr);gap:clamp(28px,4vw,68px);padding-top:26px;display:grid}.chapter-nav{flex-direction:column;align-self:start;display:flex;position:sticky;top:20px}.chapter-button{width:100%;color:var(--muted);border:0;border-bottom:1px solid var(--line);text-align:left;cursor:pointer;background:0 0;padding:17px 8px 17px 0;transition:color .18s,padding .18s;display:block}.chapter-button:first-child{border-top:1px solid var(--line)}.chapter-button:hover,.chapter-button[data-active=true]{color:var(--ink)}.chapter-button[data-active=true]{padding-left:7px}.chapter-button[data-active=true]:before{content:"";vertical-align:1px;background:#e06a49;border-radius:50%;width:6px;height:6px;margin-right:5px;display:inline-block}.chapter-button strong{color:inherit;font-size:15px;font-weight:620}.study{min-width:0}.study-heading{grid-template-columns:minmax(180px,.55fr) minmax(260px,.45fr);align-items:end;gap:30px;margin-bottom:24px;display:grid}.study-heading h2{letter-spacing:-.055em;margin-bottom:0;font-family:Georgia,Times New Roman,serif;font-size:clamp(45px,5.7vw,78px);font-weight:400;line-height:.9}.study-thesis{letter-spacing:-.035em;max-width:500px;margin:0;font-size:clamp(18px,2vw,25px);line-height:1.25}.field-frame{background:var(--field);padding:10px 10px 0;position:relative}.field{background:var(--field);cursor:crosshair;touch-action:none;width:100%;height:clamp(360px,52vw,650px);min-height:280px;max-height:650px;position:relative;overflow:hidden}.field canvas{display:block}.field-instruction{color:#eef2df8f;letter-spacing:.1em;text-transform:uppercase;pointer-events:none;font-size:10px;position:absolute;top:8px;right:7px}.field-status{color:#eef2dfa8;letter-spacing:.08em;text-transform:uppercase;border-top:1px solid #eef2df1a;justify-content:space-between;gap:16px;padding:10px 2px 11px;font-size:10px;display:flex}.transport{border-bottom:1px solid var(--ink);align-items:center;gap:4px;min-height:68px;display:flex}.transport-button{color:#0d0f0d;background:var(--acid);border:1px solid var(--ink);cursor:pointer;border-radius:999px;height:36px;padding:0 14px;font-size:12px;font-weight:650}.transport-secondary{color:var(--ink);background:0 0;border-color:#0000}.transport-secondary:hover{border-color:var(--line)}.speed-control{color:var(--muted);letter-spacing:.06em;text-transform:uppercase;align-items:center;gap:6px;margin-left:6px;font-size:10px;font-weight:650;display:inline-flex}.speed-control select{height:30px;color:var(--ink);border:0;border-bottom:1px solid var(--line);background:0 0;border-radius:0}.interaction-note{color:var(--muted);text-align:right;margin-left:auto;font-size:12px}.parameters{border-bottom:1px solid var(--line);grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(20px,3vw,46px);padding:28px 0 34px;display:grid}.parameter{min-width:0}.parameter-label{letter-spacing:.035em;justify-content:space-between;gap:10px;margin-bottom:12px;font-size:11px;font-weight:600;display:flex}.parameter output{color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap;font-weight:500}input[type=range]{appearance:none;cursor:pointer;background:0 0;width:100%;height:18px;margin:0}input[type=range]::-webkit-slider-runnable-track{background:var(--ink);height:1px}input[type=range]::-webkit-slider-thumb{appearance:none;border:1px solid var(--ink);background:var(--paper);border-radius:50%;width:13px;height:13px;margin-top:-6px}input[type=range]::-moz-range-track{background:var(--ink);height:1px}input[type=range]::-moz-range-thumb{border:1px solid var(--ink);background:var(--paper);border-radius:50%;width:13px;height:13px}.study-notes{grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(24px,4vw,58px);padding:37px 0 110px;display:grid}.study-notes h3{color:var(--muted);letter-spacing:.11em;text-transform:uppercase;margin-bottom:13px;font-size:10px;font-weight:650}.study-notes p{letter-spacing:-.015em;max-width:520px;margin-bottom:0;font-size:clamp(15px,1.4vw,19px);line-height:1.52}footer{border-top:1px solid var(--ink);padding:42px 0 70px}.footer-line{letter-spacing:-.045em;max-width:870px;margin-bottom:14px;font-family:Georgia,Times New Roman,serif;font-size:clamp(34px,5vw,68px);line-height:1.03}footer>span{color:var(--muted);font-size:13px}@media (width<=800px){main{padding:0 16px}.site-header{height:64px}.intro{padding:64px 0 56px;display:block}h1{margin-bottom:30px}.guide{padding-top:14px;display:block}.chapter-nav{grid-template-columns:repeat(4,minmax(0,1fr));margin-bottom:44px;display:grid;position:static;overflow:hidden}.chapter-button{border-right:1px solid var(--line);padding:12px 6px;display:block}.chapter-button:last-child{border-right:0}.chapter-button:first-child{border-top:0}.chapter-button[data-active=true]{padding-left:6px}.chapter-button[data-active=true]:before{display:none}.study-heading{grid-template-columns:1fr;gap:20px}.field-frame{margin:0 -16px;padding:7px 7px 0}.field{height:clamp(300px,72vw,480px)}.transport{flex-wrap:wrap;padding:14px 0}.interaction-note{text-align:left;flex-basis:100%;margin:8px 0 0}.speed-control{margin-left:auto}.parameters{grid-template-columns:1fr;gap:24px}.study-notes{grid-template-columns:1fr;gap:32px;padding-bottom:76px}}@media (width<=480px){h1{font-size:64px}.chapter-button strong{font-size:12px}.field-status span:last-child{text-align:right;max-width:62%}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition-duration:.01ms!important}}