/* A quiet open sketchbook: facing pages, original marks, and reader-led turns. */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.studio-sketchbook{padding-block:55px 90px}
.sketchbook-heading{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:45px}
.sketchbook-heading .eyebrow{margin-bottom:20px}
.sketchbook-heading>p{font:italic 500 25px/1.35 var(--serif);color:var(--muted);padding-right:5%}
.sketchbook{position:relative}
.sketchbook-track{display:flex;overflow-x:auto;overscroll-behavior-x:contain;scroll-snap-type:x mandatory;scroll-behavior:smooth;position:relative;touch-action:pan-x pan-y pinch-zoom}
.js .sketchbook-track{scrollbar-width:none;cursor:grab}
.js .sketchbook-track::-webkit-scrollbar{display:none}
.sketchbook-track.is-dragging{scroll-snap-type:none;scroll-behavior:auto;cursor:grabbing;user-select:none}
.sketch-leaf{flex:0 0 50%;min-width:0;scroll-snap-align:start;padding:28px clamp(20px,3vw,48px) 18px;position:relative}
.sketch-leaf:nth-child(odd){background:linear-gradient(270deg,#584a3510,transparent 18px)}
.sketch-leaf:nth-child(even){background:linear-gradient(90deg,#584a3509,transparent 28px)}
.sketch-art{height:clamp(380px,39vw,600px);display:flex;align-items:center;justify-content:center}
.sketch-art picture{width:100%;height:100%;display:flex;align-items:center;justify-content:center}
.sketch-art img{width:100%;height:100%;object-fit:contain;user-select:none;-webkit-user-drag:none}
.sketch-filters{position:absolute;pointer-events:none}.sketch-art.ink img{filter:url(#sketch-ink)}.sketch-art.wash{mix-blend-mode:multiply}.sketch-art.wash img{filter:none}
.sketch-art.photograph img{height:auto;max-height:100%;object-fit:contain}
.sketch-art.pencil{mix-blend-mode:multiply}
.sketch-leaf figcaption{display:flex;align-items:baseline;justify-content:space-between;gap:20px;margin-top:32px;font:italic 500 20px/1.4 var(--serif);color:var(--muted);min-height:56px}
.folio{font:10px/1.5 var(--sans);letter-spacing:.15em;color:var(--bronze)}
.sketchbook-controls{display:flex;align-items:center;justify-content:space-between;gap:16px;border-top:1px solid var(--rule);margin-top:24px;padding-top:18px}
.sketchbook-controls[hidden]{display:none}
.sketchbook-controls button{display:flex;align-items:center;gap:18px;background:transparent;color:var(--ink);border:0;min-height:48px;padding:10px 0;font:10px/1.5 var(--sans);letter-spacing:.13em;text-transform:uppercase}
.sketchbook-controls button span{font:24px/1 var(--serif)}
.sketchbook-controls button:disabled{opacity:.3;cursor:default}
.sketchbook-controls button:not(:disabled):hover{color:var(--bronze)}
.sketchbook-count{font:10px/1.5 var(--sans);letter-spacing:.12em;color:var(--muted)}
@media(max-width:1000px){.process-grid{gap:36px;grid-template-columns:1fr 1fr}.process-steps p{font-size:18px}.process-steps h3{font-size:27px}}
@media(max-width:700px){
 .studio-open h1{font-size:46px}.studio-process{padding-top:20px}.process-grid{display:flex;flex-direction:column;gap:30px}.process-narrative{display:contents}.process-study{order:1}.process-steps{order:2}.process-heading>p:last-child{max-width:none}.process-heading h2{font-size:43px}.process-steps{margin-top:0}.process-steps p{font-size:19px;max-width:none}.process-study{width:100%;max-width:480px}.process-image{margin-top:-10px}.process-study figcaption,.process-study .text-link{margin-left:0}.process-elevation{width:calc(100% + 32px);max-width:none;margin:40px -16px 0}.founder{padding-block:60px}.founder figure{position:static}
 .studio-sketchbook{padding-block:25px 60px}.sketchbook-heading{display:block;margin-bottom:28px}.sketchbook-heading h2{font-size:42px}.sketchbook-heading>p{font-size:22px;margin-top:18px}.sketchbook-heading>p br{display:none}.sketchbook-track{margin-inline:-12px}.sketch-leaf{flex-basis:100%;padding:14px 16px 12px}.sketch-leaf:nth-child(n){background:linear-gradient(90deg,#584a3508,transparent 18px)}.sketch-art{height:clamp(330px,110vw,530px)}.sketch-leaf figcaption{font-size:19px;margin-top:25px;min-height:54px}.sketchbook-controls{margin-top:12px}.sketchbook-controls button{gap:9px;font-size:9px}.sketchbook-count{font-size:9px;letter-spacing:.05em}
}
@media(prefers-reduced-motion:reduce){.sketchbook-track{scroll-behavior:auto}}

.sketchbook-track:focus-visible{outline:2px solid var(--bronze);outline-offset:5px}

/* A sheet turns about the binding, with a different drawing on each face. */
.sketchbook-track.is-book{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));overflow:visible;scroll-snap-type:none;scroll-behavior:auto;perspective:2200px;touch-action:pan-y pinch-zoom;cursor:default;isolation:isolate}
.is-book>.sketch-leaf{min-width:0;grid-row:1;background-color:var(--paper)}
.is-book>.sketch-leaf[hidden]{display:none}
.is-book>.book-left{grid-column:1;background-image:linear-gradient(270deg,#584a3510,transparent 18px)}
.is-book>.book-right{grid-column:2;background-image:linear-gradient(90deg,#584a3509,transparent 28px)}
.is-book>.book-single{grid-column:1/-1;width:50%;justify-self:center;background-image:none}
.book-turn-sheet{position:absolute;top:0;bottom:0;width:50%;z-index:3;transform-style:preserve-3d;pointer-events:none;will-change:transform}
.book-turn-forward{left:50%;transform-origin:left center}
.book-turn-backward{left:0;transform-origin:right center}
.book-turn-face{position:absolute;inset:0;width:100%;height:100%;background:var(--paper)!important;backface-visibility:hidden;-webkit-backface-visibility:hidden;overflow:hidden}
.book-turn-front{transform:rotateY(0deg)}
.book-turn-back{transform:rotateY(180deg)}
.book-turn-face::after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(90deg,#493c2b0c,transparent 10%,transparent 85%,#493c2b0a)}
.sketch-title-page{width:100%;padding-inline:5%;text-align:center}
.sketch-title-page .eyebrow{margin-bottom:38px}
.sketch-title{font:500 clamp(30px,3vw,48px)/1.12 var(--serif);letter-spacing:-.02em}
.sketch-title-note{margin-top:30px;font:italic 500 21px/1.4 var(--serif);color:var(--muted)}

@media(max-width:700px){.sketchbook-track.is-book{grid-template-columns:minmax(0,1fr);overflow:clip;perspective:1600px}.is-book>.book-left{grid-column:1}.book-turn-sheet.book-turn-mobile{left:0;width:100%;transform-origin:left center}.sketch-title{font-size:35px}.sketch-title-note{font-size:20px}}

/* A direct path to the restored classical-order pages. */
.sketchbook-sections{display:flex;flex-wrap:wrap;justify-content:center;gap:12px 32px;margin-bottom:30px}
.sketchbook-sections button{border:0;border-bottom:1px solid transparent;background:none;padding:12px 0;font:9px/1.6 var(--sans);letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.sketchbook-sections button[aria-pressed=true]{color:var(--ink);border-bottom-color:var(--bronze)}
@media(max-width:700px){.sketchbook-sections{gap:4px 20px;margin-bottom:15px}.sketchbook-sections button{font-size:8px;min-height:44px}}

/* One warm sheet for pen, graphite/chalk and wash, including turning faces. */
.sketchbook{--paper:#f5efe5;--muted:#625c51;--rule:#c3b6a3;--bronze:#776044}
.sketch-leaf,.sketch-leaf:nth-child(n){background-color:var(--paper)}
.sketch-leaf::before{content:"";position:absolute;inset:0;pointer-events:none;background:url('/assets/img/sketch-paper.svg') repeat;opacity:.22;mix-blend-mode:soft-light}
.sketch-art,.sketch-leaf figcaption{position:relative}
.sketch-art.pencil,.sketch-art.wash{mix-blend-mode:normal}
.sketch-art.pencil img,.sketch-art.wash img{filter:var(--sketch-filter,none)}

/* More room for the complete classical studies; retain a stable page size. */
.sketch-art{height:clamp(500px,55vw,800px)}
.sketch-art:not(.pencil) picture{max-height:clamp(380px,39vw,600px)}
.sketch-art.pencil img{transform:scale(1.08)}
@media(max-width:700px){
 .sketch-art{height:clamp(430px,140vw,660px)}
 .sketch-art:not(.pencil) picture{max-height:clamp(330px,110vw,530px)}
 .sketch-art.pencil img{transform:scale(1.1)}
}

/* Selected full-page studies use the larger art area, including Sevilla. */
.sketch-art.full-page picture{max-height:none}
.sketch-art.full-page img{transform:scale(1.04)}