/* Research and cello pages: the home page's design (mono.css) applied to longer content. Each
   section is light or dark (data-tone); titles flip in letter by letter as they scroll into view. */

[data-tone=light]{--bg:var(--light);--fg:var(--dark);--muted:rgba(11,11,11,.58);--line:rgba(11,11,11,.14);background:var(--light);color:var(--dark)}
[data-tone=dark]{--bg:var(--dark);--fg:var(--light);--muted:rgba(235,235,232,.6);--line:rgba(235,235,232,.16);background:var(--dark);color:var(--light)}
h3,h4,figure,ul{margin:0}
ul{padding:0;list-style:none}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
.mt-1{margin-top:1em}.mt-2{margin-top:1.6em}.text-muted{color:var(--muted)}

/* Links: underlined text, no arrows. */
.text-link,.copy-link{display:inline-flex;align-items:center;gap:10px;font-weight:600;font-stretch:112%;text-decoration:none;border-bottom:1px solid currentColor;padding:4px 0 2px;line-height:1.3;transition:opacity .2s}
.text-link:hover{opacity:.62}
button.text-link{border-radius:0}

/* Sections */
.block{position:relative;padding:clamp(90px,14vh,170px) var(--pad);scroll-margin-top:40px}
.block-title{font-size:clamp(2.7rem,8.2vw,9rem);line-height:.86;font-weight:780;font-stretch:122%;letter-spacing:-.035em;text-transform:uppercase;perspective:700px;margin:0 0 clamp(44px,8vh,100px);overflow-wrap:anywhere}
/* A 2D offset (not translate3d), so settled blocks do not each stay on their own GPU layer. */
.js [data-rise]{opacity:var(--in,0);translate:0 calc((1 - var(--in,0))*36px)}
.js [data-rise]:focus-within{opacity:1;translate:none}

/* Heroes: a sticky scene at the top of the page. */
.page-hero{position:relative}
/* Hero scenes are as tall as the screen with the phone's toolbars hidden (lvh), so nothing shows
   below them; text at the bottom stays above the toolbar (--toolbar) when it is shown. */
:root{--toolbar:0px}
@supports (height:100lvh){:root{--toolbar:calc(100lvh - 100svh)}}
.pin{position:sticky;top:0;height:100vh;height:100lvh;overflow:hidden}
.hero-canvas{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.hero-lens{height:230vh;background:var(--dark)}
.hero-lens .pin{background:var(--dark)}
.hero-copy{position:absolute;left:var(--pad);right:var(--pad);bottom:calc(clamp(28px,6vh,64px) + var(--toolbar));z-index:2}
.hero-title{font-size:min(15.5vw,30svh);line-height:.8;font-weight:800;font-stretch:125%;letter-spacing:-.035em;text-transform:uppercase;perspective:800px;margin-left:-.04em}
.hero-text{max-width:28em;margin-top:clamp(18px,3vh,32px);font-size:clamp(1rem,1.25vw,1.2rem);line-height:1.5}
.hero-links{display:flex;flex-wrap:wrap;gap:8px 28px;margin-top:clamp(18px,3vh,30px);font-size:.875rem;font-weight:500}
.hero-links a{text-decoration:none;border-bottom:1px solid currentColor;padding-bottom:2px;opacity:.85;transition:opacity .2s}
.hero-links a:hover{opacity:1}
.hero-hint{pointer-events:none;position:absolute;z-index:2;right:var(--pad);top:clamp(76px,11vh,110px);font-size:.75rem;font-weight:500;letter-spacing:.12em;text-transform:uppercase;opacity:.5}
@media (hover:none){.hero-hint{display:none}}

.hero-cover{height:240vh}
.hero-photo{position:absolute;inset:0;width:100%;height:100%;max-width:none;object-fit:cover;object-position:50% 38%;transform-origin:50% 45%;will-change:transform}
.js:not(.cover-ready) .hero-cover .hero-photo{visibility:hidden}
.hero-cover-canvas{z-index:1}
.hero-cover-title{position:absolute;z-index:2;left:var(--pad);top:max(14svh,90px);font-size:min(24vw,40svh);line-height:.8;font-weight:800;font-stretch:125%;letter-spacing:-.035em;text-transform:uppercase;color:#fff;mix-blend-mode:difference}
.js .hero-cover-title{width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}
.hero-role{pointer-events:none}
.hero-role,.hero-links-corner{position:absolute;z-index:2;bottom:calc(var(--pad) + var(--toolbar));margin:0;color:#fff;mix-blend-mode:difference}
.hero-role{left:var(--pad);display:flex;flex-direction:column;font-size:.875rem;font-weight:500;line-height:1.45}
.hero-role span+span{opacity:.65}
.hero-links-corner{right:var(--pad);justify-content:flex-end}

/* Research: current work */
.current-project{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,2.3fr);gap:clamp(30px,7vw,120px);scroll-margin-top:90px}
.project__label,.study-type,.publication-meta{font-size:.75rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase}
.project__date{margin:.5em 0 2.2em;color:var(--muted);font-size:.9375rem}
.project__meta{font-size:.9375rem;line-height:1.55}
.project__meta h4{font-size:.75rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;margin:2em 0 .6em;color:var(--muted)}
.project__supervisors:first-of-type h4{margin-top:0}
.project__meta a{text-underline-offset:3px}
.project__content h3{font-size:clamp(1.9rem,3.6vw,3.8rem);line-height:1.02;font-weight:680;font-stretch:112%;letter-spacing:-.035em;margin-bottom:.7em;max-width:18em}
.project__content>p,.study-prose p{font-size:clamp(1rem,1.15vw,1.15rem);line-height:1.62;max-width:40em}
.project__content .text-link{margin-top:2em;margin-right:28px}

/* Research: publications */
.publications{margin-top:clamp(110px,18vh,220px);scroll-margin-top:40px}
.publication-feature{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.publication-content{padding:clamp(28px,4vw,56px) clamp(0px,3vw,48px) clamp(28px,4vw,56px) 0}
.publication-meta{display:flex;gap:16px;color:var(--muted);margin-bottom:1.6em}
.publication-feature h3{font-size:clamp(1.25rem,1.9vw,1.9rem);line-height:1.25;font-weight:560;letter-spacing:-.02em;max-width:26em}
.publication-feature h3 a{text-decoration:none}
.publication-title-name{display:block;font-size:clamp(3rem,7vw,7rem);line-height:.9;font-weight:800;font-stretch:125%;letter-spacing:-.04em;margin-bottom:.28em}
.publication-authors{margin-top:1.6em;color:var(--muted);font-size:.9375rem}
.publication-authors strong{color:var(--fg);font-weight:600}
.publication-links{display:flex;flex-wrap:wrap;align-items:center;gap:14px 28px;margin-top:2em}
.publication-read{display:inline-flex;align-items:center;gap:12px;padding:14px 20px;background:var(--fg);color:var(--bg);font-weight:600;font-stretch:112%;text-decoration:none;transition:opacity .2s}
.publication-read:hover{opacity:.8}
.publication-preview{position:relative;display:grid;place-items:center;min-height:clamp(360px,44vw,560px);padding:48px;background:var(--dark);perspective:1100px;overflow:hidden}
.publication-paper{display:block;width:min(100%,280px);transform:rotateY(calc(var(--tx,0)*14deg)) rotateX(calc(var(--ty,0)*-12deg)) rotateZ(-4deg);transition:transform .5s cubic-bezier(.2,.8,.2,1);transform-style:preserve-3d}
.publication-paper img{width:100%;height:auto;box-shadow:0 30px 60px rgba(0,0,0,.45)}
.publication-pdf{position:absolute;right:18px;bottom:16px;color:var(--light);font-size:.75rem;font-weight:600;letter-spacing:.12em}

/* Research: earlier work */
.studies{border-top:1px solid var(--line)}
.study-project{border-bottom:1px solid var(--line)}
.study-project summary{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:24px;padding:clamp(24px,4vh,40px) 0;cursor:pointer;list-style:none}
.study-project summary::-webkit-details-marker{display:none}
.study-type{display:flex;flex-wrap:wrap;gap:6px 22px;color:var(--muted);margin-bottom:.9em}
.study-project h3{font-size:clamp(1.5rem,3.4vw,3.4rem);line-height:1.02;font-weight:680;font-stretch:112%;letter-spacing:-.035em;max-width:22em;transition:transform .45s cubic-bezier(.2,.8,.2,1)}
.study-project summary:hover h3{transform:translateX(12px)}
.expand-icon{font-size:clamp(1.8rem,3vw,2.6rem);font-weight:300;line-height:1;transition:transform .45s cubic-bezier(.2,.8,.2,1)}
.study-project[open] .expand-icon,.concert-archive[open] .expand-icon{transform:rotate(45deg)}
.study-body{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,2.3fr);gap:clamp(30px,7vw,120px);padding:0 0 clamp(36px,6vh,64px)}
.study-body .project__label,.study-body .project__date{display:none}
.study-prose figure{margin-top:2em}
.study-prose img{width:100%;height:auto;background:#fff}
.study-prose figcaption{margin-top:.8em;font-size:.8125rem;color:var(--muted)}

/* Research: interactive lensing (dark) */
.lensing-intro{max-width:46em}
.lensing-intro>p{font-size:clamp(1rem,1.2vw,1.2rem);line-height:1.6;color:var(--muted);margin-top:-2.4em}
.lensing-applet,.cosmography-explanation{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:clamp(30px,6vw,100px);align-items:center;padding:clamp(50px,9vh,100px) 0;border-top:1px solid var(--line);scroll-margin-top:60px}
.lensing-section .lens-lab{margin-top:clamp(40px,7vh,80px)}
.lensing-applet h3,.sim-intro h3,.cosmography-explanation h3{font-size:clamp(1.8rem,3.2vw,3.2rem);line-height:1;font-weight:720;font-stretch:118%;letter-spacing:-.035em;text-transform:uppercase}
.lab-intro>p,.applet-explanation>p,.cosmography-explanation p,.sim-intro p{font-size:1rem;line-height:1.65;color:var(--muted);max-width:34em;margin-top:1.2em}
.lab-controls,.applet-controls{display:grid;gap:10px;max-width:420px;margin-top:2em}
.lab-controls label,.applet-controls label,.sim-control>label{display:flex;justify-content:space-between;align-items:baseline;gap:14px;font-size:.875rem;font-weight:500}
.lab-controls output,.applet-controls output,.sim-control output{font-variant-numeric:tabular-nums;color:var(--muted);white-space:nowrap}
.lab-controls .text-link{justify-self:start;margin-top:6px}
.lab-display{position:relative;isolation:isolate;min-height:clamp(340px,40vw,560px);background:var(--dark);border:1px solid var(--line);overflow:hidden}
.lab-display .lens-art{position:absolute;inset:0}
.lens-canvas{display:block;width:100%;height:100%}
.lens-fallback{position:absolute;inset:0;z-index:-1}
.lens-fallback img{width:100%;height:100%;object-fit:cover}
.lab-model{position:absolute;top:18px;right:20px;font-size:.9375rem;opacity:.75}
.lab-disclaimer{position:absolute;left:20px;right:20px;bottom:16px;font-size:.75rem;line-height:1.6;opacity:.7}
.lab-disclaimer a{text-underline-offset:3px}

/* Range sliders: a hairline track and a small round thumb. */
input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:28px;margin:0;background:none;cursor:pointer;color:inherit}
input[type=range]::-webkit-slider-runnable-track{height:1px;background:currentColor;opacity:.9}
input[type=range]::-moz-range-track{height:1px;background:currentColor}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:15px;height:15px;margin-top:-7px;border-radius:50%;background:currentColor;border:0;transition:transform .2s}
input[type=range]::-moz-range-thumb{width:15px;height:15px;border-radius:50%;background:currentColor;border:0}
input[type=range]:active::-webkit-slider-thumb{transform:scale(1.35)}
input[type=range]:focus-visible{outline:2px solid currentColor;outline-offset:4px}
input[type=range]:disabled{opacity:.35;cursor:default}
input[type=checkbox]{accent-color:var(--fg);width:16px;height:16px;margin:0}

/* Lensed quasar simulator */
.quasar-simulator{padding:clamp(50px,9vh,100px) 0;border-top:1px solid var(--line);scroll-margin-top:60px}
.sim-intro{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:clamp(30px,6vw,100px);margin-bottom:clamp(30px,5vh,50px)}
.sim-intro p:first-child{margin-top:0}
.sim-toolbar{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:20px}
.sim-presets{display:flex;flex-wrap:wrap;gap:6px 22px}
.sim-presets button{padding:8px 0;font-size:.9375rem;font-weight:500;border-bottom:1px solid transparent;opacity:.6;transition:opacity .2s,border-color .2s}
.sim-presets button:hover{opacity:1}
.sim-presets button[aria-pressed=true]{opacity:1;border-color:currentColor}
.sim-planes{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(12px,2vw,24px)}
.sim-plane{border:1px solid var(--line);background:var(--dark);min-width:0;overflow:hidden}
.sim-plane figcaption{display:flex;justify-content:space-between;gap:14px;padding:14px 18px;font-size:.875rem;font-weight:500;border-bottom:1px solid var(--line)}
.sim-plane figcaption>span:last-child{color:var(--muted);font-variant-numeric:tabular-nums}
.sim-plane canvas{display:block;width:100%;height:auto;aspect-ratio:1;outline-offset:-3px}
.sim-legend{display:flex;flex-wrap:wrap;gap:10px 20px;padding:14px 18px;border-top:1px solid var(--line);font-size:.8125rem;color:var(--muted)}
.sim-legend>span{display:flex;align-items:center;gap:9px}
.sim-line:before{content:'';width:20px;border-top:1.5px solid var(--light)}
.sim-caustic:before{border-top-style:dashed}
.sim-critical:before{opacity:.8}
.sim-dot:before{content:'';width:7px;height:7px;border-radius:50%;background:var(--light)}
.sim-host:before{background:rgba(235,235,232,.45)}
.sim-lens:before{background:rgba(235,235,232,.6)}
.sim-source-dot:before{border-radius:0;width:11px;height:1.5px;box-shadow:none;background:var(--light)}
.sim-status-row{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;margin:16px 0 28px;font-size:.875rem;min-height:1.6em}
#sim-busy{color:var(--muted)}
#sim-error{color:var(--muted);margin:20px 0}
.sim-controls{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(24px,4vw,56px);padding-top:30px;border-top:1px solid var(--line)}
.sim-control-group{min-width:0}
.sim-control-group h4{font-size:.75rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;margin-bottom:22px;color:var(--muted)}
.sim-control{margin-bottom:16px}
.sim-controls details{margin-top:14px;padding-top:14px;border-top:1px solid var(--line)}
.sim-controls summary,.sim-image-details summary{display:flex;justify-content:space-between;gap:10px;font-size:.875rem;font-weight:500;cursor:pointer;list-style:none}
.sim-controls summary::-webkit-details-marker{display:none}
.sim-controls summary:after{content:'+';font-size:1.1rem;line-height:1}
.sim-controls details[open]>summary:after{content:'−'}
.sim-controls details[open]>summary{margin-bottom:22px}
.sim-checkbox{display:flex;align-items:center;gap:10px;font-size:.875rem;margin-bottom:14px;cursor:pointer}
.sim-help{font-size:.8125rem;line-height:1.6;color:var(--muted)}
.sim-help+.sim-checkbox{margin-top:18px}
.sim-table-wrap{overflow-x:auto;margin-top:18px}
.sim-table-wrap table{border-collapse:collapse;width:100%;font-size:.8125rem;font-variant-numeric:tabular-nums;text-align:right}
.sim-table-wrap th{font-weight:500;color:var(--muted)}
.sim-table-wrap th,.sim-table-wrap td{padding:8px 5px;border-bottom:1px solid var(--line);white-space:nowrap}
.sim-table-wrap th:first-child,.sim-table-wrap td:first-child{text-align:left}
.sim-table-wrap+.sim-help{margin-top:14px}
.sim-reading{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(24px,4vw,56px);margin-top:44px;padding-top:32px;border-top:1px solid var(--line)}
.sim-reading p{font-size:.9375rem;line-height:1.7;color:var(--muted)}
.sim-reading strong{color:var(--fg);font-weight:600}
.sim-reference-links{display:flex;flex-wrap:wrap;gap:12px 30px;margin-top:26px}

/* Time delays */
.delay-actions{display:flex;flex-wrap:wrap;gap:12px 26px;margin-top:8px}
.applet-result{min-height:3em;margin-top:14px;font-size:.875rem;color:var(--muted)}
.applet-result.aligned{color:var(--fg)}
.applet-figure{border:1px solid var(--line);background:var(--dark);padding:16px 12px 18px;min-width:0}
.applet-figure canvas{display:block;width:100%;height:clamp(260px,26vw,360px)}
.applet-figure figcaption{margin:8px 10px 0;font-size:.8125rem;color:var(--muted)}
.curve-legend{display:flex;gap:22px;margin:4px 10px 10px;font-size:.8125rem}
.curve-legend>span{display:flex;align-items:center;gap:9px}
.legend-a:before,.legend-b:before{content:'';width:24px;border-top:2px solid var(--light)}
.legend-b:before{border-top:2px dashed rgba(235,235,232,.6)}
.cosmography-explanation p+p{margin-top:1.4em}

/* The expanding universe (expansion.js) */
.expansion{grid-column:1/-1;display:grid;grid-template-columns:minmax(0,1.65fr) minmax(0,1fr);gap:clamp(14px,2vw,28px);margin-top:clamp(20px,4vh,50px)}
.expansion-stage{position:relative;height:clamp(380px,62vh,640px);border:1px solid var(--line);background:var(--dark);overflow:hidden;touch-action:pan-y}
.expansion-canvas{display:block;width:100%;height:100%;cursor:crosshair}
.expansion-stage:after{content:'';position:absolute;left:0;right:0;bottom:0;height:120px;background:linear-gradient(transparent,var(--dark) 80%);pointer-events:none}
.expansion-hint{position:absolute;z-index:1;left:18px;right:18px;bottom:14px;max-width:34em;font-size:.8125rem;line-height:1.5;color:var(--muted);pointer-events:none}
.expansion-side{display:flex;flex-direction:column;gap:18px;min-width:0}
.hubble-canvas{display:block;width:100%;height:clamp(240px,34vh,340px);border:1px solid var(--line);background:var(--dark)}
.expansion-controls{display:grid;gap:10px}
.expansion-controls label{display:flex;justify-content:space-between;align-items:baseline;gap:14px;font-size:1rem;font-weight:600}
.expansion-controls output{font-variant-numeric:tabular-nums;color:var(--muted);font-weight:500}
.h0-presets{display:flex;flex-wrap:wrap;gap:6px 22px}
.h0-presets button{padding:6px 0;font-size:.875rem;font-weight:500;border-bottom:1px solid transparent;opacity:.62;transition:opacity .2s,border-color .2s}
.h0-presets button:hover{opacity:1}
.h0-presets button[aria-pressed=true]{opacity:1;border-color:currentColor}
.expansion-readout{font-size:.875rem;line-height:1.55;color:var(--muted);min-height:3em}
.expansion figcaption{grid-column:1/-1;font-size:.8125rem;line-height:1.6;color:var(--muted);max-width:60em}

/* Cello: concerts */
.concert-heading{display:flex;justify-content:space-between;align-items:end;gap:40px}
.concert-list{border-top:1px solid var(--line)}
/* The last column has the same width in every row (it fits "Free admission"), so the columns line up
   whether a row has a ticket link, a longer label or none. */
.event-row{position:relative;display:grid;grid-template-columns:minmax(110px,.55fr) minmax(0,1.6fr) minmax(0,1fr) 8rem;gap:clamp(16px,3vw,48px);align-items:center;padding:clamp(22px,3.4vh,34px) 0;border-bottom:1px solid var(--line)}
.js .event-row{border-bottom-color:transparent}
.event-string{position:absolute;left:0;bottom:-1px;width:100%;height:24px;margin-bottom:-11.5px;overflow:visible;pointer-events:none;color:var(--fg);opacity:.2}
.event-row:hover .event-string{opacity:.9}
.event-date{display:flex;align-items:center;gap:14px}
.event-day{font-size:clamp(2.6rem,4.6vw,4.8rem);line-height:.9;font-weight:780;font-stretch:122%;letter-spacing:-.04em;font-variant-numeric:tabular-nums;min-width:1.25em}
.event-date>span:last-child{font-size:.75rem;font-weight:600;letter-spacing:.1em;line-height:1.35;color:var(--muted)}
.event-program p{font-size:.9375rem;line-height:1.5;color:var(--muted);max-width:none}
.event-program p::first-line{font-size:1.125rem;font-weight:600;color:var(--fg)}
.event-location h4{font-size:1.0625rem;font-weight:600;line-height:1.3}
.event-location p{font-size:.875rem;color:var(--muted)}
.event-location .concert__time{display:block;margin-top:4px;font-size:.8125rem;color:var(--muted)}
.event-ticket{font-size:.875rem;font-weight:600;font-stretch:112%;text-decoration:none;border-bottom:1px solid currentColor;padding-bottom:2px;justify-self:end}
.event-past{font-size:.75rem;color:var(--muted)}
.concert-archive{margin-top:clamp(50px,8vh,90px)}
.concert-archive>summary{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:22px 0;border-top:1px solid var(--line);cursor:pointer;list-style:none;font-size:clamp(1.3rem,2.4vw,2.2rem);font-weight:700;font-stretch:115%;letter-spacing:-.02em;text-transform:uppercase}
.concert-archive>summary::-webkit-details-marker{display:none}
.concert-archive>summary>span:last-child{display:flex;align-items:center;gap:26px;font-size:.875rem;font-weight:500;letter-spacing:.04em;color:var(--muted)}
.concert-archive .event-day{font-size:clamp(2rem,3.4vw,3.4rem)}

/* Cello: biography */
.biography-grid{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:clamp(30px,7vw,120px);align-items:start}
.biography-grid figure{position:sticky;top:90px;perspective:1100px}
.biography-grid img{width:100%;aspect-ratio:3/4;object-fit:cover;object-position:50% 45%;filter:grayscale(1);transform:rotateY(calc(var(--tx,0)*8deg)) rotateX(calc(var(--ty,0)*-6deg));transition:transform .5s cubic-bezier(.2,.8,.2,1)}
.biography-grid .block-title{font-size:clamp(2.4rem,5.6vw,6.4rem);margin-bottom:.5em}
.biography-prose p{font-size:clamp(1rem,1.15vw,1.15rem);line-height:1.65;max-width:36em}
.biography-grid .text-link{margin:2.2em 28px 0 0}

/* Cello: recordings (dark) */
.section-heading{display:flex;justify-content:space-between;align-items:end;gap:30px;flex-wrap:wrap}
.section-heading .block-title{margin-bottom:0}
.performances{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(24px,3vw,44px) clamp(16px,2vw,28px);margin-top:clamp(44px,8vh,90px)}
.video-frame{position:relative;aspect-ratio:16/9;background:#1a1a1a;overflow:hidden}
.video-frame iframe{display:block;width:100%;height:100%;border:0}
/* Videos and the recording load only when played: a still with a play button until then. */
.video-facade{position:absolute;inset:0;display:block;width:100%;height:100%;padding:0;border:0;background:#1a1a1a;cursor:pointer;overflow:hidden}
.video-facade img{width:100%;height:100%;object-fit:cover;filter:grayscale(1);transition:filter .5s,transform .8s cubic-bezier(.2,.8,.2,1)}
.video-facade:hover img,.video-facade:focus-visible img{filter:none;transform:scale(1.03)}
.video-facade:focus-visible{outline:2px solid var(--light);outline-offset:-4px}
.play{position:relative;display:block;width:64px;height:64px;border-radius:50%;background:var(--light);transition:transform .4s cubic-bezier(.2,.8,.2,1)}
.play:after{content:'';position:absolute;left:54%;top:50%;transform:translate(-50%,-50%);border-style:solid;border-width:11px 0 11px 18px;border-color:transparent transparent transparent var(--dark)}
.video-facade .play{position:absolute;left:50%;top:50%;width:clamp(56px,6vw,84px);height:auto;aspect-ratio:1;translate:-50% -50%}
.video-facade:hover .play,.audio-facade:hover .play{transform:scale(1.12)}
.audio-facade{display:flex;align-items:center;gap:22px;width:100%;padding:6px 0;text-align:left;cursor:pointer}
.audio-facade .play{flex-shrink:0}
.audio-label{display:flex;flex-direction:column;font-size:clamp(1.2rem,2vw,1.8rem);font-weight:700;font-stretch:115%;letter-spacing:-.02em;line-height:1.15}
.audio-source{font-size:.75rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-top:6px}
.performance-caption{margin-top:12px;font-size:.8125rem}
.performance-caption .text-link{font-weight:500}
.audio-recording{margin-top:clamp(44px,8vh,90px);padding-top:30px;border-top:1px solid var(--line)}
.audio-recording iframe{display:block;width:100%;height:166px;border:0}

/* Cello: press photos */
.press-gallery{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:clamp(10px,1.6vw,22px)}
.press-photo{display:block;text-decoration:none;perspective:900px}
.press-photo-frame{aspect-ratio:3/4;overflow:hidden;background:#d9d9d6;transform:rotateY(calc(var(--tx,0)*12deg)) rotateX(calc(var(--ty,0)*-10deg));transition:transform .5s cubic-bezier(.2,.8,.2,1)}
.press-photo-frame img{width:100%;height:100%;object-fit:cover;filter:grayscale(1);transition:filter .5s}
.press-photo:hover img{filter:none}
.press-photo:nth-child(1) img{object-position:50% 40%}
.press-photo>span{display:block;margin-top:12px;font-size:.8125rem;font-weight:600}

/* Teaching: two big choices, then the book */
.teach-hero{padding-top:clamp(110px,16vh,180px)}
.teach-hero .hero-title{font-size:min(15.5vw,26svh)}
.teach-lead{max-width:30em;margin-top:clamp(20px,3vh,34px);font-size:clamp(1.05rem,1.4vw,1.35rem);line-height:1.5}
.choices{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(12px,1.6vw,24px);margin-top:clamp(40px,7vh,80px);perspective:1400px}
.choice{container-type:inline-size;position:relative;isolation:isolate;display:flex;flex-direction:column;min-height:clamp(300px,46svh,520px);padding:clamp(22px,3vw,44px);border:1.5px solid var(--fg);color:var(--fg);text-decoration:none;overflow:hidden;transform:rotateY(calc(var(--tx,0)*7deg)) rotateX(calc(var(--ty,0)*-6deg));transition:transform .5s cubic-bezier(.2,.8,.2,1),color .45s cubic-bezier(.2,.8,.2,1)}
.choice:before{content:'';position:absolute;inset:0;z-index:-1;background:var(--fg);transform:scaleY(0);transform-origin:bottom;transition:transform .55s cubic-bezier(.7,0,.2,1)}
.choice:hover,.choice:focus-visible{color:var(--bg)}
.choice:hover:before,.choice:focus-visible:before{transform:scaleY(1)}
.choice-kicker{font-size:.75rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;opacity:.7}
.choice-title{margin-top:auto;font-size:2.6rem;font-size:min(12.4cqi,6.4rem);line-height:.86;font-weight:800;font-stretch:122%;letter-spacing:-.035em;text-transform:uppercase;transition:transform .55s cubic-bezier(.2,.8,.2,1)}
.choice:hover .choice-title{transform:translateY(-8px)}
.choice-text{margin-top:1.1em;max-width:26em;font-size:clamp(.95rem,1.1vw,1.1rem);line-height:1.5;opacity:.8}
.book-grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:clamp(30px,6vw,110px);align-items:center}
.book-figure{perspective:1200px}
.book-figure .book3d{max-width:430px;margin:0 auto}
.book-copy .block-title{margin-bottom:.45em}
.book-name{font-size:clamp(1.5rem,2.6vw,2.6rem);line-height:1.08;font-weight:680;font-stretch:112%;letter-spacing:-.025em;max-width:16em}
.book-sub{margin-top:.8em;color:var(--muted);font-size:.9375rem}
.book-text{margin-top:1.6em;max-width:34em;font-size:clamp(1rem,1.15vw,1.15rem);line-height:1.6}
.book-links{display:flex;flex-wrap:wrap;gap:12px 30px;margin-top:2.2em}

/* Narrow screens */
@media (max-width:980px){
  .current-project,.study-body,.biography-grid,.lensing-applet,.cosmography-explanation,.sim-intro,.book-grid{grid-template-columns:minmax(0,1fr)}
  .book-figure .book3d{max-width:min(300px,70vw)}
  .sim-controls,.sim-reading{grid-template-columns:minmax(0,1fr)}
  .expansion{grid-template-columns:minmax(0,1fr)}
  .expansion-stage{height:clamp(340px,52svh,520px)}
  .publication-feature{grid-template-columns:minmax(0,1fr)}
  .publication-content{padding-right:0}
  .event-row{grid-template-columns:minmax(90px,.5fr) minmax(0,1.5fr) 8rem}
  .event-location{grid-column:2}
  .event-ticket{grid-column:3;grid-row:1}
  .press-gallery{grid-template-columns:repeat(3,minmax(0,1fr))}
  .biography-grid figure{position:relative;top:0;max-width:520px}
}
@media (max-width:760px){
  .block{padding-top:clamp(70px,11vh,110px);padding-bottom:clamp(70px,11vh,110px)}
  .block-title,.biography-grid .block-title{font-size:9.4vw;font-stretch:112%}
  .hero-lens{height:210vh}
  .hero-title{font-size:min(17vw,20svh)}
  .hero-links{gap:8px 20px}
  .sim-planes{grid-template-columns:minmax(0,1fr)}
  .performances{grid-template-columns:minmax(0,1fr)}
  .event-row{grid-template-columns:minmax(0,1fr) auto;gap:10px 16px;align-items:start}
  .event-date{grid-column:1/-1}
  .event-program,.event-location{grid-column:1}
  .event-ticket{grid-column:2;grid-row:2;align-self:start}
  .event-day{font-size:2.6rem}
  .press-gallery{grid-template-columns:repeat(2,minmax(0,1fr))}
  .choices{grid-template-columns:minmax(0,1fr)}
  .choice{min-height:clamp(220px,32svh,320px)}
  .hero-links-corner,.hero-hint{display:none}
  .concert-archive>summary>span:last-child{gap:14px}
}
@media (prefers-reduced-motion:reduce){
  .publication-paper,.biography-grid img,.press-photo-frame,.study-project h3,.expand-icon,.choice,.choice:before,.choice-title,.video-facade img,.play{transition:none}
}