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var(--story-reveal))));opacity:var(--story-reveal);grid-template-columns:minmax(0,6fr) minmax(0,6fr);align-items:center;display:grid;position:absolute;top:55%}.opening-images{padding:0 var(--space-12) var(--space-8) 0;position:relative}.dartmouth-photo{border:var(--border);background:var(--surface-raised);height:clamp(240px,29vw,380px);position:relative}.dartmouth-photo>img{object-fit:cover;object-position:50% 50%;filter:grayscale()sepia(.12)brightness(.85)}.dartmouth-photo:after{content:"";pointer-events:none;background:linear-gradient(#0000 65%,#09150be6);position:absolute;inset:0}.dartmouth-photo figcaption{bottom:var(--space-4);inset-inline:var(--space-4);z-index:1;color:#d2e0d5;font-size:11px;position:absolute}.photo-cross{z-index:2;width:16px;height:16px;position:absolute}.photo-cross:before,.photo-cross:after{content:"";background:var(--accent);width:15px;height:1px;position:absolute;top:7px;left:0}.photo-cross:after{transform:rotate(90deg)}.photo-cross.top-left{top:-8px;left:-8px}.photo-cross.bottom-right{bottom:-8px;right:-8px}.mccarthy-photo{right:0;bottom:var(--space-8);border:4px solid var(--surface);width:124px;height:164px;position:absolute}.mccarthy-photo>img{object-fit:cover;object-position:50% 30%;filter:grayscale()brightness(.9)}.mccarthy-photo figcaption{inset-inline:-12px;text-align:center;color:var(--body-ink);margin-top:var(--space-2);font-size:11px;position:absolute;top:100%}.opening-photo-credit{margin-top:var(--space-3);max-width:calc(100% - 100px);font-size:11px}.eyebrow{align-items:center;gap:var(--space-3);color:var(--accent);display:flex}.eyebrow i{background:currentColor;flex-shrink:0;width:5px;height:5px}.opening-narrative h2{font-size:var(--text-feature);margin-block:var(--space-6);position:relative}.typing-ghost{visibility:hidden;pointer-events:none}.typed-title,.typed-prose{position:absolute;inset:0}.opening-prose{max-width:var(--reading-width);color:var(--body-ink);font-size:var(--text-body);position:relative}.type-cursor{background:var(--accent);width:2px;height:.9em;margin-left:4px;animation:.8s step-end infinite cursor-blink;display:inline-block}@keyframes cursor-blink{50%{opacity:0}}.opening-story-end{margin-top:var(--space-6);opacity:0}.opening-story-end.visible{opacity:1}.opening-story-end>.mono{color:var(--accent)}.opening-story-end>p{color:var(--muted-ink);font-size:var(--text-caption);margin-top:var(--space-2);max-width:var(--support-width);line-height:1.65}.opening-bottom{bottom:var(--space-6);border-top:var(--border);padding-top:var(--space-3);color:var(--muted-ink)}.opening-bottom button{align-items:center;gap:var(--space-6);padding:var(--space-2) 0;min-height:44px;font-family:var(--font-archive);font-size:var(--text-label);color:var(--accent);background:0 0;border:0;display:flex}.opening-bottom>span>i{display:none}@media (max-height:760px) and (min-width:761px){.opening-date{top:calc(45% * (1 - var(--date-lift)) + 70px * var(--date-lift))}.opening-story{top:53%}.dartmouth-photo{height:250px}.opening-narrative h2{margin-block:var(--space-4);font-size:2.25rem}.opening-story-end{margin-top:var(--space-4)}.opening-bottom{bottom:var(--space-3)}}@media (max-height:620px) and (min-width:761px){.dartmouth-photo{height:min(200px,32svh)}}@media (max-width:760px){.opening-chrome{top:var(--space-3)}.opening-date{top:calc(45% * (1 - var(--date-lift)) + 72px * var(--date-lift));transform:translate(-50%, calc(-50% * (1 - var(--date-lift))))}.opening-date-values{gap:.2em;font-size:clamp(1.125rem,5.4vw,2.5rem)}.opening-date-label{margin-bottom:var(--space-2);font-size:11px}.opening-date-rule{margin-top:var(--space-2)}.opening-story{gap:var(--space-6);transform:translateY(calc(16px * (1 - var(--story-reveal))));grid-template-columns:minmax(0,1fr);top:152px}.opening-images{padding:0 var(--space-8) var(--space-4) 0}.dartmouth-photo{height:clamp(130px,20svh,200px)}.dartmouth-photo figcaption{inset-inline:var(--space-3);bottom:var(--space-3);font-size:10px;line-height:1.5}.mccarthy-photo{bottom:var(--space-4);border-width:3px;width:78px;height:104px}.mccarthy-photo figcaption{margin-top:var(--space-1);font-size:10px}.opening-photo-credit{max-width:calc(100% - 65px);min-height:0;padding-block:0;font-size:11px;line-height:1.5}.opening-narrative .eyebrow{font-size:11px}.opening-narrative h2{margin-block:var(--space-3);font-size:clamp(1.75rem,7.6vw,2.75rem)}.opening-prose{font-size:1rem;line-height:1.55}.opening-story-end{margin-top:var(--space-3)}.opening-story-end>.mono{font-size:11px}.opening-story-end>p{font-size:11px;line-height:1.5}.opening-bottom{bottom:var(--space-2);padding-top:var(--space-2);gap:var(--space-4)}.opening-bottom>span{max-width:18ch;font-size:10px}.opening-bottom button{gap:var(--space-3);font-size:11px}}@media (max-width:760px) and (max-height:720px){.opening-story{gap:var(--space-4);top:136px}.dartmouth-photo{height:105px}.opening-narrative h2{font-size:1.75rem}.opening-prose{font-size:.9375rem}.opening-story-end>p{line-height:1.4}}@media (prefers-reduced-motion:reduce){.opening-track{height:auto}.opening{filter:none;opacity:1;min-height:100svh;position:relative}.opening-story{opacity:1}}
.human-chapter{background:var(--surface);color:var(--ink)}.human-question{min-height:90svh;color:var(--ink);background:var(--surface);border-top:var(--border);align-items:center;display:grid}.human-question h2{font-size:var(--text-display);max-width:18ch;margin-block:var(--space-8);line-height:1}.human-question h2>span{color:var(--body-ink)}.human-question h2>em{color:var(--accent);font-style:normal}.human-question p{color:var(--body-ink);max-width:var(--intro-width);font-size:var(--text-intro)}.human-scroll{min-height:44px;margin-top:var(--space-6);text-underline-offset:5px;align-items:center;text-decoration:underline;display:inline-flex}.benchmark-story h3,.pause-story h3{font-size:var(--text-chapter);max-width:23ch;margin-block:var(--space-8) var(--space-6)}.benchmark-pair{gap:var(--grid-gap);margin-block:var(--feature-space) var(--space-8);grid-template-columns:repeat(2,minmax(0,1fr));display:grid}.benchmark-card{border-top:var(--border);padding-top:var(--space-6)}.benchmark-card strong{font-family:var(--font-archive);font-size:var(--text-display);letter-spacing:-.09em;color:var(--muted-ink);margin-block:var(--space-4) var(--space-6);font-weight:400;line-height:1.3;display:block}.benchmark-card strong sup{vertical-align:super;letter-spacing:-.04em;margin-left:var(--space-2);font-size:.3em}.benchmark-card-new strong{color:var(--accent)}.benchmark-track{background:var(--line);height:6px}.benchmark-track>span{background:var(--muted-ink);transform-origin:0;height:100%;transition:transform var(--motion-scene) var(--ease-out);display:block;transform:scaleX(0)}.benchmark-card-new .benchmark-track>span{background:var(--accent)}.benchmark-card.revealed .benchmark-track>span{transform:scaleX(1)}.benchmark-card p{color:var(--body-ink);font-size:var(--text-caption);margin-top:var(--space-4)}.benchmark-context{max-width:var(--support-width);color:var(--muted-ink);font-size:var(--text-caption);line-height:1.65}.pause-story{background:var(--surface);color:var(--ink);border-block:var(--border)}.pause-story h3{margin-bottom:var(--feature-space)}.pause-event{padding-block:var(--space-12);border-top:var(--border)}.pause-event time{color:var(--accent)}.pause-event h4{font-size:var(--text-subhead);margin-bottom:var(--space-6)}.pause-event p{max-width:var(--reading-width);color:var(--body-ink)}.human-present{background:#12231a;align-items:center;min-height:85svh;display:grid}.human-present h3{font-size:var(--text-display);max-width:16ch;margin-block:var(--space-8)}.human-present h3 span{color:var(--accent)}.human-present p{font-size:var(--text-intro);color:var(--body-ink);max-width:var(--intro-width)}.david-introduction h3{font-size:var(--text-display);margin-block:var(--space-8)}.david-introduction h3 span{color:var(--accent)}.david-introduction p{font-size:var(--text-intro);line-height:var(--leading-body);color:var(--body-ink);max-width:var(--intro-width)}.david-introduction p+p{margin-top:var(--space-6)}.david-introduction strong{color:var(--ink);font-weight:400}.chisel-story{margin-block:var(--feature-space);padding-block:var(--feature-space);border-block:var(--border)}.chisel-art{text-align:center;color:var(--accent);font-family:var(--font-archive);font-size:var(--text-caption);letter-spacing:.065em}.chisel-art svg{width:100%;height:auto;margin-block:var(--space-4);display:block}.chisel-story h4{font-size:var(--text-feature);margin-block:var(--space-6)}.chisel-story p,.david-manifesto>p:not(.manifesto-lead){color:var(--body-ink);font-size:var(--text-body);line-height:var(--leading-body);max-width:var(--reading-width)}.chisel-story p+p{margin-top:var(--space-4)}.david-manifesto h4{font-size:var(--text-display);margin-block:var(--space-8)}.david-manifesto .manifesto-lead{font-size:var(--text-feature);letter-spacing:-.04em;color:var(--body-ink);margin-block:var(--space-8);line-height:1.25}.manifesto-lead em{color:var(--accent);font-style:normal}.engineer-principles{gap:var(--grid-gap);margin-top:var(--feature-space);grid-template-columns:repeat(3,minmax(0,1fr));display:grid}.engineer-principle{padding-top:var(--space-6);border-top:var(--border)}.engineer-principle h4{font-size:var(--text-subhead);margin-block:var(--space-6)}.engineer-principle p{color:var(--body-ink);font-size:var(--text-body);line-height:var(--leading-body)}.david-signoff{margin-top:var(--feature-space);border-top:var(--border);padding-top:var(--feature-space)}.david-signoff>p{text-wrap:balance;color:var(--accent);max-width:25ch;font-size:var(--text-feature);letter-spacing:-.04em;margin-block:var(--space-8) var(--space-12);line-height:1.2}.david-signature{font-family:var(--font-editorial);color:var(--ink);font-size:2rem;font-style:italic}.david-signature>span{margin-top:var(--space-4);font-style:normal;display:block}@media (max-width:760px){.human-question{min-height:75svh}.human-question h2{font-size:clamp(2.5rem,11vw,4.5rem)}.human-question p br,.david-signoff>p br{display:none}.benchmark-pair{gap:var(--space-8);grid-template-columns:minmax(0,1fr)}.benchmark-card strong{font-size:5.5rem}.pause-event{padding-block:var(--space-8)}.pause-event time br{display:none}.human-present{min-height:75svh}.human-present h3{font-size:var(--text-display)}.chisel-art{max-width:420px}.engineer-principles{gap:var(--space-8);grid-template-columns:minmax(0,1fr)}}@media (prefers-reduced-motion:reduce){.benchmark-track>span{transform:scaleX(1)}}